Implement ban by software version xep-0092

- Use tomb v2 to properly spawn and reap goroutines (hopefully)
- Update deps
- Fix hang on stale connection due to improper goroutine management

.gitignore

@@ -5,7 +5,8 @@
 *.tmp
 **/*.bak
 **/*.tmp
-data/config.json
+/data/config.json
-data/whitelist.json
+/data/whitelist.json
-data/blacklist.json
+/data/blacklist.json
-buny-jabber-bot
+/buny-jabber-bot
+/buny-jabber-bot.exe

.golangci.yml

@@ -0,0 +1,69 @@
+run:
+  tests: false
+  modules-download-mode: readonly
+  allow-parallel-runners: true
+  go: '1.24'
+issues:
+  exclude-dirs:
+    - data
+    - vendor
+output:
+  sort-results: true
+linters-settings:
+  gosec:
+    excludes:
+      # Оно не используется для повышения безопасности или каких-то таких секъюрых вещей, оно используется для выборки
+      # произвольного элемента из массива, так что ИДИ НАХУЙ с этой проверкой и не еби мозги липовой безопасностью.
+      - G404 # Insecure random number source (rand)
+linters:
+  disable-all: true
+  enable:
+    - errcheck
+    - gosimple
+    - govet
+    - ineffassign
+    - staticcheck
+    - unused
+    - asasalint
+    - asciicheck
+    - bodyclose
+    - containedctx
+    - contextcheck
+    - decorder
+    - durationcheck
+    - errchkjson
+    - errorlint
+    - exhaustive
+    - exhaustruct
+    - copyloopvar
+    - ginkgolinter
+    - gocheckcompilerdirectives
+    - gocritic
+    - godot
+    - err113
+    - gofmt
+    - goimports
+    - gosec
+    - gosmopolitan
+    - grouper
+    - importas
+    - ireturn
+    - makezero
+    - mirror
+    - nakedret
+    - nilerr
+    - nilnil
+    - nlreturn
+    - noctx
+    - nolintlint
+    - nonamedreturns
+    - predeclared
+    - promlinter
+    - reassign
+    - revive
+    - rowserrcheck
+    - stylecheck
+    - unconvert
+    - wastedassign
+    - whitespace
+    - wsl

Design.txt

@@ -1,12 +1,5 @@
 Oсобенности реализации клиентской части.
 
-Общие положения
-------------------------------------------------------------------------------------------------------------------------
-
-Nick для room-ов един и не может задаваться на per-conference основе. На этом завязаны отсылка ping-ов и определение
-pong-ов, как минимум. Хотя формально джойниться можно с любым ником :) но что-то не хочется потом распутывать этот
-клубок.
-
 
 XEP-0410 MUC Self-Ping (Schrödinger's Chat)
 ------------------------------------------------------------------------------------------------------------------------
@@ -61,3 +54,20 @@ Cуществует несколько видов пинга:
 ------------------------------------------------------------------------------------------------------------------------
 Причину бана можно только включить или выключить в конфиге на per-chat основе. Фразу настроить невозможно. (не хотелось
 реализовывать парсинг темплейтов, как минимум даты-времени)
+
+
+Бан за фразы
+------------------------------------------------------------------------------------------------------------------------
+Бот не читает историю, когда присоединяется к чатам, поэтому если его какое-то время не было в комнате и кто-то произнёс
+непотребную фразу, ретроспективного бана не будет.
+
+
+Проблема реконнекта
+------------------------------------------------------------------------------------------------------------------------
+На текущий момент решена не совсем чисто. Скорее всего, при реконнекте утекают ресурсы, связанные с jabber-соединением.
+Проблема в том, что приходится пересоздавать основной "объект" со всеми его полями.
+
+Кроме того, sig handler фактичеки не завершается, потому что в него не приходит ни одного сигнала и формально остаётся
+висеть на channel-е навечно.
+
+А ещё есть пингеры каналов и пингеры сервера. Их бы тоже завершать явным образом.

Makefile

@@ -1,20 +1,88 @@
 #!/usr/bin/env gmake -f
 
-CGO_ENABLED=0
 BUILDOPTS=-ldflags="-s -w" -a -gcflags=all=-l -trimpath
+MYNAME=buny-jabber-bot
+BINARY=$(MYNAME)
+TEST1=xml-software-version-query
 
+# На windows имя бинарника может зависеть не только от платформы, но и от выбранной цели, для linux-а суффикс .exe
+# не нужен
+ifeq ($(OS),Windows_NT)
+ifeq ($(strip $(GOOS)),)
+BINARY=buny-jabber-bot.exe
+endif
+endif
+
+# Если мы собираем бинарь под windows не на windows, то надо сделать бинарь с суффиксом .exe
+ifeq ($(strip $(GOOS)),windows)
+BINARY=buny-jabber-bot.exe
+endif
+
+# Явно определяем символ новой строки, чтобы избежать неоднозначности на windows
+define IFS
+
+endef
+
+## Используем классические таргеты, где первый встречаемый является таргетом по-умолчанию
 all: clean build
 
+## Этот таргет собирает бинарь
 build:
-	go build ${BUILDOPTS} -o "buny-jabber-bot" collection.go types.go globals.go lib.go event_parser.go buny.go main.go
+# Ну и дальше просто билдим бинарник средствами гошки
+ifeq ($(OS),Windows_NT)
+# вариант с powershell на windows
+ifeq ($(SHELL),sh.exe)
+	SET CGO_ENABLED=0
+	go build ${BUILDOPTS} -o ${BINARY} ./cmd/${MYNAME}
+else
+# вариант с jetbrains golang на windows
+	CGO_ENABLED=0
+	go build ${BUILDOPTS} -o ${BINARY} ./cmd/${MYNAME}
+endif
+# вариант с bash/git (windows) и bash (linux)
+else
+	CGO_ENABLED=0 go build ${BUILDOPTS} -o ${BINARY} ./cmd/${MYNAME}
+endif
 
+
+## Удаляем бинарник средствами go
 clean:
-	go clean
+	$(RM) ${BINARY}
 
+
+## Служебный таргет, для целей разработки. Обновляет завендоренные либы, брутальным образом.
 upgrade:
-	rm -rf vendor
+ifeq ($(OS),Windows_NT)
+# вариант с jetbrains golang на windows или powershell на windows
+ifeq ($(SHELL),sh.exe)
+	if exist vendor del /F /S /Q vendor >nul
+# вариант с git/bash на windows
+else
+	$(RM) -r vendor
+endif
+# вариант с bash на linux
+else
+	$(RM) -r vendor
+endif
 	go get -d -u -t ./...
 	go mod tidy
 	go mod vendor
 
+test1:
+# Ну и дальше просто билдим бинарник средствами гошки
+ifeq ($(OS),Windows_NT)
+# вариант с powershell на windows
+ifeq ($(SHELL),sh.exe)
+	SET CGO_ENABLED=0
+	go build ${BUILDOPTS} -o ${TEST1} ./cmd/${TEST1}.exe
+else
+# вариант с jetbrains golang на windows
+	CGO_ENABLED=0
+	go build ${BUILDOPTS} -o ${TEST1} ./cmd/${TEST1}.exe
+endif
+# вариант с bash/git (windows) и bash (linux)
+else
+	CGO_ENABLED=0 go build ${BUILDOPTS} -o ${TEST1} ./cmd/${TEST1}
+endif
+
 # vim: set ft=make noet ai ts=4 sw=4 sts=4:

README.md

@@ -1,25 +1,43 @@
 # Buny Jabber Bot
 
-Простой бот, работающий по протоколу xmpp. Его задача - банить абьюзеров чата.
+<table style="border-collapse: collapse; border: none;">
-
+<tr style="border: none;">
-Этот бот автоматизирует уборку человеческой грязи. Самый важный вопрос, который следует себе задать перед его
+<td rowspan=2 style="border: none;"><img src="assets/avatar.png" alt="Бани" style="max-width: none; min-width:100%"></td>
-использованием - а не забаню ли я кого-то не того?
+<td style="border: none;">Простой бот, работающий по протоколу xmpp. Его задача - банить абьюзеров чата. При его
+создании не стояло задачи сделать что-то красивое в архитектурном или каком-то другом плане.</td>
+</tr>
+<tr style="border: none;">
+<td style="border: none;">Этот бот автоматизирует уборку человеческой грязи. Самый важный вопрос, который следует себе
+задать перед его использованием - а не забаню ли я кого-то лишнего?
+</td>
+</tr>
+</table>
 
 ## Что он может?
 
-Имеет возможность соединяться с сервером по протоколу xmpp как с шифрованием, так и без. (Пока что) Шифрование 
+* Имеет возможность соединяться с сервером по протоколу xmpp как с шифрованием, так и без. (Пока что) Шифрование
-работает по классическим механикам (шифрованный канал связи, без возможности коммуникации в незашифрованном виде), 
+работает по классическим механикам (шифрованный канал связи, без возможности коммуникации в незашифрованном виде),
-без поддержки механизма start tls. Что-то в гошке или на стороне сервера при выборе StartTLS не работает.
+без поддержки механизма start tls. (Что-то в гошке или на стороне сервера при выборе StartTLS не работает.)
-
+* Имеет возможность заносить пользователей в бан-лист, согласно заданным в чёрном списке правилам:
-Имеет возможность заносить пользователей в бан-лист, согласно заданным в чёрном списке правилам.
+  - По совпадению с регулярными выражениями в nick-е или jid-е злодея
+  - По регулярным выражениям характерных фраз.
+  - По названию и/или версии и, если есть, ос злодея.
+  - Правила можно настроить как глобально, для всех комнат, где присутствует бот, так и для каждой комнаты отдельно.
+  - При изменении списка правил бота не надо перезапускать, достаточно отдать ему команду rehash либо в приват, либо
+    прям в чатике.
+* Есть настройка заходить в разные комнаты под разными никами.
 
 ## Что он не может?
 
 * Не может заходить в комнаты, защищённые паролем.
 * Не умеет разгадывать капчу.
 
+Предполагается, что если на комнату навешен пароль, то такой бот там не нужен, а капча защищает от злодеев на 100%,
+иначе её навешивать бесполезно.
+
 ## Как заставить его работать?
-Технически, бот собирается гошкой 1.20 под платформу linux. Работоспособность на других платформах не тестировалась.
+
+Технически, бот собирается гошкой 1.21 под платформу linux. Работоспособность на других платформах не тестировалась.
 
 Чтобы получить готовые бинарники, достаточно выполнить команду:
 
@@ -27,16 +45,20 @@
 make
 ```
 
-в итоге получится бинарник **buny-jabber-bot**, которому нужен конфиг data/config.json для работы.
+в итоге получится бинарник **buny-jabber-bot**, которому нужен конфиг data/config.json, whitelist.json и blacklist.json
+для работы.
 
-А также понадобятся **data/blacklist.json** и **data/whitelist.json**, в которых находятся списки правил, злодеев и
+В файлах **data/blacklist.json** и **data/whitelist.json** находятся списки злодеев и списки проверенных пользователей.
-списки проверенных пользователей.
 
 ### Замечание
 
 Очевидным образом в комнате банить может только админ. Поэтому боту придётся выдать админские права. А комнату сделать
 не анонимной (то есть, чтобы как минимум админы могли видеть реальный jid, потому что в бан отправляется именно он).
 
+Почему нельзя оставить комнату анонимной? А тут всё просто, в банлист заносится реальный jid пользователя, а не его ник.
+Соответственно, бот должен видеть этот самый реальный jid. В анонимной комнате бот не сможет увидеть реальный jid.
+А автокик - это, конечно, хорошо, но есть нюанс: можно, например, гадить ником, поэтому бот в автокик не умеет.
+
 ## Как работает бан?
 
 Никакой магии, всё по стандарту, согласно [xep-0045](https://xmpp.org/extensions/xep-0045.html#ban).
@@ -45,28 +67,9 @@ make
 помещает этот jid в список изгнанных из комнаты (бан-лист конкретной комнаты, в которой присутствует бот) и выгоняет
 этого jid-а.
 
-### В чём тонкость?
-
-Ровно в том, что для исполнения действия, боту надо заметить presence участника, а presence посылается
-при изменении состояния клиента. То есть, если jid уже был в комнате на момент захода бота в неё, то его не забанят
-(во всяком случае моментально). Самый простой способ поместить таких персонажей в бан - просто кикнуть их. Ихний
-affiliation сменится на none, бот заметит presence и, если jid подпадает под правила чёрного списка, то отправит этот
-jid в бан.
-
-Но, простите, ведь "по правилам", при заходе клиента в комнату ему присылается presence всех участников, чтобы он мог
-построить локальный ростер комнаты и начать отслеживать изменения состояния участников конференции. Почему бы в этот
-момент не банить злодеев?
-
-Да, так делать можно, однако пока этого нет. Дело в том, что presence самого себя участнику приходит последним (после
-presence-ов тех, кто находится в комнате на момент появления в ней бота), и, согласно этому событию, можно считать, что
-клиент зашёл в комнату успешно и формально *только после этого*, клиент может что-то пытаться делать в этой комнате.
-Соответственно, чтобы кого-то банить исходя из списка presense-ов, который прилетает на входе, необходимо реализовать
-"одноразовую" очередь тех, кого имеет смысл забанить и разгрести её "когда будет можно". Эта задача факультативная,
-возможно, она будет решена потом.
-
 ## Как работает белый список?
 
-Белый список - это список jid-ов, которых банить нельзя ни при каких обстоятельствах. В нём всегда неявно присутсвует
+Белый список - это список jid-ов, которых банить нельзя ни при каких обстоятельствах. В нём всегда неявно присутствует
 сам бот.
 
 ### Можно ли почистить ban-list?

Story.txt

@@ -1,7 +1,7 @@
 Конечно, очень печально, что приходится развивать свои навыки программизмов на программах с такой задачей. Но жизнь не
 всегда радует своими проявлениями.
 
-История бота довольно банальна: к нам в чятик стал набергать один товарищ и нести чушь про политоту. Если его банить
+История бота довольно банальна: к нам в чятик стал набегать один товарищ и нести чушь про политоту. Если его банить
 классическими средствами, он просто создавал новый аккаунт и снова набегал гадить.
 
 И таким образом родилась идея как-то автоматизировать его бан.

buny.go

@@ -1,259 +0,0 @@
-package main
-
-import (
-	"fmt"
-	"regexp"
-	"strings"
-	"time"
-
-	"github.com/davecgh/go-spew/spew"
-	"github.com/eleksir/go-xmpp"
-	log "github.com/sirupsen/logrus"
-)
-
-func buny(v xmpp.Presence) error { //nolint:gocognit,gocyclo
-	var err error
-
-	// Если у presence-а есть JID и presence из одной из комнат, в которой мы есть и если его домен в чёрном
-	// списке, заносим пидора в список outcast-ов
-	if v.JID != "" {
-		// На всякий случай: себя никогда не баним, явным образом
-		if v.JID == talk.JID() {
-			return err
-		}
-
-		room := strings.SplitN(v.From, "/", 2)[0]
-
-		if room == "" {
-			log.Infof("We got empty room field in presence event, which kinda strange: %s", spew.Sdump(v))
-
-			return err
-		}
-
-		goodJid := strings.SplitN(v.JID, "/", 2)[0]
-
-		// Обрабатываем правила белого списка
-		for _, good := range whiteList.Whitelist {
-			// Глобальный белый список
-			if good.RoomName == "" {
-				for _, person := range good.Jid {
-					if person == goodJid {
-						return err
-					}
-				}
-			}
-
-			// Белый список для конкретных каналов
-			if good.RoomName == room {
-				for _, person := range good.Jid {
-					if person == goodJid {
-						return err
-					}
-				}
-			}
-		}
-
-		evilJid := strings.SplitN(v.JID, "/", 2)[0]
-		evilNick := ""
-		evilNicks := strings.SplitN(v.From, "/", 2)
-		// Давайте-ка похэндлим нонсенс - когда у нас в строке нету разделителя
-		if len(evilNicks) > 1 {
-			evilNick = evilNicks[1]
-		}
-
-		// Обрабатываем правила чёрного списка
-		for _, cRoom := range roomsConnected {
-			if cRoom == room {
-				for _, bEntry := range blackList.Blacklist {
-					// Обработаем правила глобального чёрного списка
-					if bEntry.RoomName == "" {
-						for _, jidRegexp := range bEntry.JidRe {
-							re, err := regexp.Compile(jidRegexp)
-
-							if err != nil {
-								log.Errorf("Incorrect regexp in blacklist: %s, skipping", jidRegexp)
-
-								continue
-							}
-
-							if re.MatchString(evilJid) {
-								if id, err := squash(room, evilJid, bEntry.ReasonEnable, v.Type); err != nil {
-									err := fmt.Errorf(
-										"unable to ban user: id=%s, err=%w",
-										id,
-										err,
-									)
-
-									gTomb.Kill(err)
-
-									continue
-								}
-
-								return err
-							}
-						}
-
-						for _, nickRegexp := range bEntry.NickRe {
-							re, err := regexp.Compile(nickRegexp)
-
-							if err != nil {
-								log.Errorf("Incorrect regexp in blacklist: %s, skipping", nickRegexp)
-
-								continue
-							}
-
-							if re.MatchString(evilNick) {
-								// Баним именно jid
-								if id, err := squash(room, evilJid, bEntry.ReasonEnable, v.Type); err != nil {
-									err := fmt.Errorf(
-										"unable to ban user: id=%s, err=%w",
-										id,
-										err,
-									)
-
-									gTomb.Kill(err)
-
-									continue
-								}
-
-								return err
-							}
-						}
-
-						continue
-					}
-
-					// Обработаем правила конкретного канала, комнаты конференции
-					if bEntry.RoomName == room {
-						for _, jidRegexp := range bEntry.JidRe {
-							re, err := regexp.Compile(jidRegexp)
-
-							if err != nil {
-								log.Errorf("Incorrect regexp in blacklist: %s, skipping", jidRegexp)
-
-								continue
-							}
-
-							if re.MatchString(evilJid) {
-								if id, err := squash(room, evilJid, bEntry.ReasonEnable, v.Type); err != nil {
-									err := fmt.Errorf(
-										"unable to ban user: id=%s, err=%w",
-										id,
-										err,
-									)
-
-									gTomb.Kill(err)
-
-									continue
-								}
-
-								return err
-							}
-						}
-
-						if bEntry.RoomName == room {
-							for _, nickRegexp := range bEntry.NickRe {
-								re, err := regexp.Compile(nickRegexp)
-
-								if err != nil {
-									log.Errorf("Incorrect regexp in blacklist: %s, skipping", nickRegexp)
-
-									continue
-								}
-
-								if re.MatchString(evilNick) {
-									// Баним именно jid
-									if id, err := squash(room, evilJid, bEntry.ReasonEnable, v.Type); err != nil {
-										err := fmt.Errorf(
-											"unable to ban user: id=%s, err=%w",
-											id,
-											err,
-										)
-
-										gTomb.Kill(err)
-
-										continue
-									}
-
-									return err
-								}
-							}
-						}
-
-						continue
-					}
-				}
-			}
-		}
-	}
-
-	return err
-}
-
-// squash банит указанный jid в указанной комнате.
-// reasonEnable указывает, надо ли писать дату автобана в банлисте в поле reason (это единственная причина, в которую
-// умеет бот).
-func squash(room, jid string, reasonEnable bool, vType string) (string, error) {
-	var (
-		id  string
-		err error
-	)
-
-	log.Infof("Hammer falls on %s", jid)
-
-	if config.Jabber.BanPhrasesEnable {
-		phrase := randomPhrase(config.Jabber.BanPhrases)
-
-		if _, err = talk.Send(
-			xmpp.Chat{ //nolint:exhaustruct
-				Remote: room,
-				Text:   phrase,
-				Type:   vType,
-			},
-		); err != nil {
-			err = fmt.Errorf("unable to send phrase to room %s: %w", room, err)
-
-			// Здесь возвращаем nil, т.к. за нас ошибку залоггирует код выше
-			return id, err
-		}
-	}
-
-	// https://xmpp.org/extensions/xep-0045.html#ban баним вот таким сообщением
-	ban := "<item affiliation='outcast' jid='" + jid + "'>"
-
-	if reasonEnable {
-		var t = time.Now()
-		ban += fmt.Sprintf(
-			"<reason>autoban at %04d.%02d.%02d %02d:%02d:%02d</reason>",
-			t.Year(),
-			t.Month(),
-			t.Day(),
-			t.Hour(),
-			t.Minute(),
-			t.Second(),
-		)
-	} else {
-		ban += "<reason />"
-	}
-
-	ban += "</item>"
-
-	if id, err = talk.RawInformationQuery(
-		talk.JID(),
-		room,
-		"ban1",
-		xmpp.IQTypeSet,
-		"http://jabber.org/protocol/muc#admin",
-		ban,
-	); err != nil {
-		err = fmt.Errorf(
-			"unable to ban user: id=%s, err=%w",
-			id,
-			err,
-		)
-	}
-
-	return id, err
-}
-
-/* vim: set ft=go noet ai ts=4 sw=4 sts=4: */

cmd/buny-jabber-bot/main.go

@@ -0,0 +1,162 @@
+package main
+
+import (
+	"crypto/tls"
+	"fmt"
+	"os"
+	"os/signal"
+	"regexp"
+	"time"
+
+	_ "embed"
+
+	"buny-jabber-bot/internal/jabber"
+
+	"github.com/eleksir/go-xmpp"
+	log "github.com/sirupsen/logrus"
+	"gopkg.in/tomb.v2"
+)
+
+//go:embed version
+var version string
+
+// main - фактичеcки, начало и основное тело программы.
+func main() {
+	var err error
+
+	for {
+		var j = jabber.Jabber{ //nolint:exhaustruct
+			SigChan:        make(chan os.Signal, 1),
+			GTomb:          tomb.Tomb{},
+			RoomsConnected: make([]string, 1),
+		}
+
+		log.SetFormatter(&log.TextFormatter{ //nolint:exhaustruct
+			DisableQuote:           true,
+			DisableLevelTruncation: false,
+			DisableColors:          true,
+			FullTimestamp:          true,
+			TimestampFormat:        "2006-01-02 15:04:05",
+		})
+
+		if err := j.ReadConfig(); err != nil {
+			log.Error(err)
+
+			os.Exit(1)
+		}
+
+		j.C.Version = version
+
+		// no panic
+		switch j.C.Loglevel {
+		case "fatal":
+			log.SetLevel(log.FatalLevel)
+		case "error":
+			log.SetLevel(log.ErrorLevel)
+		case "warn":
+			log.SetLevel(log.WarnLevel)
+		case "info":
+			log.SetLevel(log.InfoLevel)
+		case "debug":
+			log.SetLevel(log.DebugLevel)
+		case "trace":
+			log.SetLevel(log.TraceLevel)
+		default:
+			log.SetLevel(log.InfoLevel)
+		}
+
+		// Откроем лог и скормим его логгеру.
+		if j.C.Log != "" {
+			logfile, err := os.OpenFile(j.C.Log, os.O_WRONLY|os.O_APPEND|os.O_CREATE, 0644)
+
+			if err != nil {
+				log.Fatalf("Unable to open log file %s: %s", j.C.Log, err)
+			}
+
+			log.SetOutput(logfile)
+		}
+
+		j.C.ExeName, err = os.Executable()
+
+		if err != nil {
+			log.Panicf("Unable to find my executable: %s", err)
+		}
+
+		// handle pricky windows case. But honestly i do not expect it runs on windows.
+		if regexp.MustCompile(".[Ee][Xx][Ee]$").MatchString(j.C.ExeName) {
+			j.C.ExeName = j.C.ExeName[:len(j.C.ExeName)-4]
+
+			if j.C.ExeName == "" {
+				j.C.ExeName = "buny-jabber-bot"
+			}
+		}
+
+		log.Infof("Service %s v%s starting", j.C.ExeName, j.C.Version)
+
+		myLogLevel := log.GetLevel()
+		log.Warnf("Loglevel set to %v", myLogLevel)
+
+		verboseClient := false
+
+		if myLogLevel == log.TraceLevel {
+			verboseClient = true
+		}
+
+		// Самое время вгрузить белые и чёрные списки, если что - получим ошибку в лог.
+		if err := j.ReadWhitelist(); err != nil {
+			log.Error(err)
+
+			os.Exit(1)
+		}
+
+		if err := j.ReadBlacklist(); err != nil {
+			log.Error(err)
+
+			os.Exit(1)
+		}
+
+		// github.com/mattn/go-xmpp пишет в stdio, нам этого не надо, ловим выхлоп его в logrus с уровнем trace.
+		xmpp.DebugWriter = log.WithFields(log.Fields{"logger": "stdlib"}).WriterLevel(log.TraceLevel)
+
+		// Хэндлер сигналов.
+		j.GTomb.Go(func() error { return j.SigHandler() }) //nolint: gocritic
+
+		signal.Notify(j.SigChan, os.Interrupt)
+
+		j.Options = &xmpp.Options{ //nolint:exhaustruct
+			Host:     fmt.Sprintf("%s:%d", j.C.Jabber.Server, j.C.Jabber.Port),
+			User:     j.C.Jabber.User,
+			Password: j.C.Jabber.Password,
+			Resource: j.C.Jabber.Resource,
+			NoTLS:    !j.C.Jabber.Ssl,
+			StartTLS: j.C.Jabber.StartTLS,
+			TLSConfig: &tls.Config{ //nolint:exhaustruct
+				ServerName:         j.C.Jabber.Server,
+				InsecureSkipVerify: !j.C.Jabber.SslVerify, //nolint:gosec
+			},
+			InsecureAllowUnencryptedAuth: j.C.Jabber.InsecureAllowUnencryptedAuth,
+			Debug:                        verboseClient,
+			Session:                      false,
+			Status:                       "xa",
+			StatusMessage:                jabber.RandomPhrase(j.C.Jabber.StartupStatus),
+			DialTimeout:                  time.Duration(j.C.Jabber.ConnectionTimeout) * time.Second,
+		}
+
+		// Враппер основной программы. Фактически на каждой серьёзной ошибке, например, сетевой, mainLoop и некоторые
+		// вспомогательные корутины прекращает свою работу. Здесь мы это ловим и запускаем их снова. Задача в том, чтобы
+		// запустить все асинхронные процессы заново, с чистого листа, но уже с распарсенным конфигом.
+
+		// Устанавливаем соединение и гребём события, посылаемые сервером - основной и вспомогательные циклы программы.
+		j.GTomb.Go(func() error { return j.MyLoop() }) //nolint: gocritic
+
+		// Ловим первый же kill и не дождаемся остальных, хотя формально надо бы.
+		<-j.GTomb.Dying()
+
+		// Если у нас wire error, то вызов .Close() повлечёт за собой ошибку. А если у нас не wire error, то по ходу мы
+		// получим утечку сокетов.
+
+		time.Sleep(time.Duration(j.C.Jabber.ReconnectDelay) * time.Second)
+	}
+}
+
+/* vim: set ft=go noet ai ts=4 sw=4 sts=4: */

cmd/buny-jabber-bot/version

@@ -0,0 +1 @@
+0.2

contrib/buny-jabber-bot.openrc

@@ -0,0 +1,23 @@
+#!/sbin/openrc-run
+
+name="$SVCNAME"
+command="/var/lib/$SVCNAME/$SVCNAME"
+supervisor="supervise-daemon"
+pidfile="/run/$SVCNAME/$SVCNAME.pid"
+command_user=nobody:nogroup
+
+depend() {
+	need net redis
+	use dns
+	after redis
+}
+
+start_pre() {
+	mkdir -p /var/log/$SVCNAME
+	chown -R nobody:nogroup /var/log/$SVCNAME
+	mkdir -p /run/$SVCNAME
+	chown -R nobody:nogroup /run/$SVCNAME
+}
+
+
+# vim: set ft=sh noet ai ts=4 sw=4 sts=4:

data/sample_blacklist.json

@@ -1,22 +1,38 @@
 {
 	"blacklist": [
 		{
-			# Пустой список означает глобальные баны, которые применяются ко всем комнатам, где присутствует бот
+			# Пустой список означает глобальные баны, которые применяются ко всем комнатам, где присутствует бот.
 			"room_name": "",
-			# Записывать ли в reason в банлисте комнаты сообщение вида autoban at yyyy.MM.dd hh:mm:ss
+
-			# Если не задано, то false
+			# Записывать ли в reason в банлисте комнаты сообщение вида autoban at yyyy.MM.dd hh:mm:ss.
+			# Если не задано, то false.
 			"reason_enable": false,
-			# Список регулярок JID-ов, которых надо банить
+
+			# Список регулярок JID-ов, которых надо банить.
 			"jid_re": [
 				"^[Mm]ary@server.tld/resource1$",
 				"^[cC]hris(topher)?@",
 				"^(his|her)_cat@sweet.home/.*$",
 				"^(her|his)_dog@.*\\.street/.*"
 			],
-			# Список регулярок nick-ов злодеев
+
+			# Список регулярок nick-ов злодеев.
 			"nick_re": [
 				"^(Annoying_)?[F|f]ly$",
 				"^Buzzing_Wasp$"
+			],
+
+			# Список регулярок, запрещённых к упоминанию в чяте.
+			"phrase_re": [
+				"^Exterminate.$"
+			],
+
+			"user_agent": [
+				{
+					"software": "BadUserAgent",
+					"version": "0.666.0",
+					"os": "DeathStarOS"
+				}
 			]
 		}
 	]

data/sample_config.json

@@ -1,48 +1,121 @@
+/* vim: set ft=text noet ai ts=2 sw=2 sts=2: */
 {
 	# Фронт-энд бота
 	"jabber": {
 		# Если не задан, будет localhost
 		"server": "jabber.tld",
+
 		# Если не задано - 5222 для нешифрованного соединения или для starttls и 5223 для голого (старорежимного) ssl
 		"port": 5222,
+
 		# Включить шифрование
 		"ssl": true,
+
 		# Это более современный протокол и как раз на нём работет большинство jabber-серверов, порт 5222,
 		# jabber.ru по этому протоколу как-то странно работает, если его включить, я получаю
 		# tls: first record does not look like a TLS handshake
 		"starttls" : true,
+
 		# Не проверяем сертификаты по-умолчанию.
 		# Вам правда хочется всё это проверять? Там по идее могут быть всякие Lets Encrypt, которые хоть и работают, но
 		# создают кучу проблем
 		"ssl_verify": false,
+
 		# Позволять авторизацию логин-паролем по незашифрованному каналу связи
 		"insecureallowunencryptedauth": false,
+
 		# Таймаут установления соединения с сервером, в секундах. 10 секунд, если не задано.
 		"connection_timeout": 10,
+
 		# Задержка перед пере-коннекчиванием. 3 секунды, если не задано.
 		"reconnect_delay": 3,
+
 		# Промежуток между пингами сервера, для определения его живости. По-умолчанию 60 секунд.
 		# Пинги посылаются, если в течение этого времени не было активности со стороны сервера.
 		"server_ping_delay": 60,
+
 		# Промежуток между пингами muc-ов. По-умолчанию 900 секунд. (Согласно рекомендации в xep-0410.)
 		# Пинги посылаются, если в течение этого времени не было активности со стороны muc-а.
 		"muc_ping_delay": 900,
+
 		# Сколько ждать перед переджоиванием к комнате. По-умолчанию, 3 секунды.
 		"muc_rejoin_delay": 3,
+
 		# Ping-to-ping splay delay. Варьируемая задержка между пингами, чтобы не набирать высокий message rate.
 		# По-умолчанию, 3 секунды. Под капотом преобразуются в миллисекунды. Важна для пингов MUC-ов, особенно,
 		# если их МНОГО.
 		"ping_splay_delay": 3,
+
 		# Ник бота, с которым он будет заходить в комнаты
 		"nick": "buny",
+
 		# Уникальная часть jid-а, специфичная для клиента
 		"resource" : "Лунная призма",
+
+		# Имя пользователя для авторизации на сервере
+		"user": "buny@jabber.tld",
+
+		# Пароль для авторизации
+		"password": "secret",
+
+		# Список JID-ов, которым позволено управлять ботом (например, давать отмашку на rehash).
+		# В списке jid-ы без resource-а.
+		# Если не задано ни одного мастера, то бот сам себе мастер.
+		"bot_masters": [
+			"luna@earth.tld"
+		],
+
+		# Jabber-каналы, к которым бот попробует присоединиться при старте
+		"channels": [
+			{
+				# Название канала, обязательное поле
+				"name" : "my_channel@conference.jabber.tld",
+
+				# Под каким ником бот зайдёт конкретно на этот канал. Если не задано, будет использован ник, заданный в
+				# общих настройках Jabber, выше по конфигу.
+				"nick" : "sailormoon",
+
+				# Настройки байесовского классификатора. В виду вероятности ложного срабатывания возможно, имеет смысл
+				# воздержаться от использования. Зависит от использования и от словарей.
+				"bayes": {
+					# Если не указано, то он выключен
+					"enabled": false,
+
+					# Минимальное количество слов во фразе, по-умолчанию 8, если не указано или указано меньше
+					"min_words": 10,
+
+					# Минимальная длина фразы, по-умолчанию 40 символов, если не указано или указано меньше
+					"min_length": 50,
+
+					# Действие по умолчанию log, devoice, kick, ban. Если не задано, то log.
+					"default_action": "kick"
+				},
+				"password": ""
+
+				# Проверка на фразы, написанные капсом
+				"all_caps": {
+					# Если не указано, то выключено
+					"enabled": false,
+
+					# Минимальное количество буквенных символов в проверяемой фразе
+					"min_length": 15,
+
+					# Действие по-умолчанию log, devoice, kick, ban. Если не задано, то log.
+					"default_action": "kick"
+				}
+			},
+			{
+				"name" : "another_channel@conference.jabber.tld"
+			}
+		],
+
 		# Статус, с которым бот запускается. (если всё нормально, этот статус будет видать только в логах сервера и
 		# на долю секунды он промелькнёт у всех в ростере, у кого бот в знакомых. Может отсуствовать, тогда статус будет
 		# пустой строкой
 		"startup_status": [
 			"bunny bot is starting"
 		],
+
 		# Статус, который демонстрируется во время работы бота, как xa
 		# (по задумке - extended away, на практике, к away обычно отношения не имеет)
 		"runtime_status": {
@@ -62,15 +135,23 @@
 				"Звезда нашей надежды никогда не исчезнет. Пока она горит, всё будет в порядке. Мы не сможем проиграть",
 				"Голова с хвостиками… Не вмешивайся в наши дела! Играть в войну — это опасно"
 			],
+
 			# Период смены статуса, сек. Если параметра нет или он выставлен в 0, ротации не будет
 			# 3 дня
 			"rotation_time": 259200,
+
 			# Рандомная составляющая, добавляемая к периоду смены статуса, сек.
 			# 4 дня
 			"rotation_splay_time": 345600
 		},
+
+		# Задержка перед баном, миллисекунды. Иногда сервер может подтормаживать на моменте бана. Jabber.ru так делает.
+		# В этом случае бан не записывается в банлист комнаты.
+		"ban_delay": 600,
+
 		# Произносим ли что-то пафосное в момоент бана
 		"ban_phrases_enable": false,
+
 		# Пафосные фраза, произносимые перед баном
 		"ban_phrases": [
 			"Во имя Луны, я накажу тебя!",
@@ -103,20 +184,15 @@
 			"Мы сражаемся за мир и равенство!",
 			"Мы — надежда для всех, кто нуждается в защите!",
 			"Мы — воительницы справедливости, и ничто не остановит нас!"
-		],
-		# Имя пользователя для авторизации на сервере
-		"user": "buny@jabber.tld",
-		# Пароль для авторизации
-		"password": "secret",
-		# Jabber-каналы, к которым бот попробует присоединиться при старте
-		"channels": [
-			"my_channel@conference.jabber.tld",
-			"another_channel@conference.jabber.tld"
 		]
 	},
 
-	# Многословность логов. Если не задано, то info. Debug - ДЕЙСТВИТЕЛЬНО вербозный уровень логгирования.
+	# command sign символ-суффикс команды, например !rehash или !help. По-умолчанию "!".
-	# Есть ещё trace :)
+	"csign" : "!",
+
+	# Многословность логов. Если не задано, то info.
+	# Есть разные уровни trace, debug, debug, info, warn, error, fatal.
+	# Практически задействованы только trace, debug, info.
 	"loglevel": "debug",
 
 	# Если не задан, логи идут в STDOUT

globals.go

@@ -1,69 +0,0 @@
-package main
-
-import (
-	"os"
-
-	"github.com/eleksir/go-xmpp"
-	"gopkg.in/tomb.v1"
-)
-
-// Config - это у нас глобальная штука :) .
-var config myConfig
-
-// Списки тех, кого мы не баним никогда.
-var whiteList myWhiteList
-
-// Списки злодеев, которых мы баним.
-var blackList myBlackList
-
-// Ставится в true, если мы получили сигнал на выключение.
-var shutdown = false
-
-// Чтобы не организовывать драку за установку коннекта.
-var connecting = false
-
-// Глобальное состояние соединения.
-var isConnected = false
-
-// Канал, в который приходят уведомления для хэндлера сигналов от траппера сигналов.
-var sigChan = make(chan os.Signal, 1)
-
-// Основной инстанс xmpp-клиента.
-var talk *xmpp.Client
-
-// Опции подключения к xmpp-серверу.
-var options *xmpp.Options
-
-// Список комнат, в которых находится бот.
-var roomsConnected []string
-
-// Время последней активности, нужно для jabber:iq:last.
-var lastActivity int64
-
-// Время последней активности, нужно для c2s пингов - посылаем пинги, только если давненько ничего не приходило с
-// сервера.
-var lastServerActivity int64
-
-// Время последней активности MUC-ов, нужно для пингов - посылаем пинги, только если давненько ничего не приходило из
-// muc-ов.
-var lastMucActivity *Collection
-
-// Получен ли ответ на запрос disco#info к серверу.
-var serverCapsQueried bool
-
-// sync.Map-ка с капабилити сервера.
-var serverCapsList *Collection
-
-// sync.Map-ка с комнатами и их capability.
-var mucCapsList *Collection
-
-// Время, когда был отправлен c2s ping.
-var serverPingTimestampTx int64
-
-// Время, когда был принят s2c pong.
-var serverPingTimestampRx int64
-
-// Объектик для хранения стейта утилизатора горутинок.
-var gTomb tomb.Tomb
-
-/* vim: set ft=go noet ai ts=4 sw=4 sts=4: */

go.mod

@@ -1,17 +1,21 @@
 module buny-jabber-bot
 
-go 1.20
+go 1.24.3
 
 require (
 	github.com/davecgh/go-spew v1.1.1
-	github.com/eleksir/go-xmpp v1.5.0
+	github.com/eleksir/go-xmpp v1.6.0
 	github.com/hjson/hjson-go v3.3.0+incompatible
+	github.com/jbrukh/bayesian v0.0.0-20231117143245-13ae6f916c7a
 	github.com/sirupsen/logrus v1.9.3
-	golang.org/x/exp v0.0.0-20230817173708-d852ddb80c63
+	golang.org/x/exp v0.0.0-20250506013437-ce4c2cf36ca6
-	gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7
+	gopkg.in/tomb.v2 v2.0.0-20161208151619-d5d1b5820637
 )
 
 require (
-	golang.org/x/crypto v0.12.0 // indirect
+	github.com/google/uuid v1.6.0 // indirect
-	golang.org/x/sys v0.11.0 // indirect
+	golang.org/x/crypto v0.38.0 // indirect
+	golang.org/x/net v0.40.0 // indirect
+	golang.org/x/sys v0.33.0 // indirect
+	golang.org/x/text v0.25.0 // indirect
 )

go.sum

@@ -1,10 +1,14 @@
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
-github.com/eleksir/go-xmpp v1.5.0 h1:kAjpCxuqWiu9LdlCTkQzvczotHONpojwp/mpI4aBVmQ=
+github.com/eleksir/go-xmpp v1.6.0 h1:bkGr0YVczJWpkyk/IHhZb2ewv+NeHLvdNfds0TFgqao=
-github.com/eleksir/go-xmpp v1.5.0/go.mod h1:KnvbXvUpttEVFl8l5eDO2Q7J97ZxtTMvOsDWULD2Rn8=
+github.com/eleksir/go-xmpp v1.6.0/go.mod h1:Ii6Wemk+yuGQOF+Glt0syjvtcPvdaBLstuNp/+rRJrg=
+github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
+github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
 github.com/hjson/hjson-go v3.3.0+incompatible h1:Rqr+Ya+0aCJMjaE4s8E9YKvuJLuLVpEvz4ONum52vnI=
 github.com/hjson/hjson-go v3.3.0+incompatible/go.mod h1:qsetwF8NlsTsOTwZTApNlTCerV+b2GjYRRcIk4JMFio=
+github.com/jbrukh/bayesian v0.0.0-20231117143245-13ae6f916c7a h1:zSc8tkEGo49/E6cQ9o00si0L9Q/Lu1Hsg8JWKCvzEDU=
+github.com/jbrukh/bayesian v0.0.0-20231117143245-13ae6f916c7a/go.mod h1:SELxwZQq/mPnfPCR2mchLmT4TQaPJvYtLcCtDWSM7vM=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/sirupsen/logrus v1.9.3 h1:dueUQJ1C2q9oE3F7wvmSGAaVtTmUizReu6fjN8uqzbQ=
@@ -12,15 +16,19 @@ github.com/sirupsen/logrus v1.9.3/go.mod h1:naHLuLoDiP4jHNo9R0sCBMtWGeIprob74mVs
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/testify v1.7.0 h1:nwc3DEeHmmLAfoZucVR881uASk0Mfjw8xYJ99tb5CcY=
 github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
-golang.org/x/crypto v0.12.0 h1:tFM/ta59kqch6LlvYnPa0yx5a83cL2nHflFhYKvv9Yk=
+golang.org/x/crypto v0.38.0 h1:jt+WWG8IZlBnVbomuhg2Mdq0+BBQaHbtqHEFEigjUV8=
-golang.org/x/crypto v0.12.0/go.mod h1:NF0Gs7EO5K4qLn+Ylc+fih8BSTeIjAP05siRnAh98yw=
+golang.org/x/crypto v0.38.0/go.mod h1:MvrbAqul58NNYPKnOra203SB9vpuZW0e+RRZV+Ggqjw=
-golang.org/x/exp v0.0.0-20230817173708-d852ddb80c63 h1:m64FZMko/V45gv0bNmrNYoDEq8U5YUhetc9cBWKS1TQ=
+golang.org/x/exp v0.0.0-20250506013437-ce4c2cf36ca6 h1:y5zboxd6LQAqYIhHnB48p0ByQ/GnQx2BE33L8BOHQkI=
-golang.org/x/exp v0.0.0-20230817173708-d852ddb80c63/go.mod h1:0v4NqG35kSWCMzLaMeX+IQrlSnVE/bqGSyC2cz/9Le8=
+golang.org/x/exp v0.0.0-20250506013437-ce4c2cf36ca6/go.mod h1:U6Lno4MTRCDY+Ba7aCcauB9T60gsv5s4ralQzP72ZoQ=
+golang.org/x/net v0.40.0 h1:79Xs7wF06Gbdcg4kdCCIQArK11Z1hr5POQ6+fIYHNuY=
+golang.org/x/net v0.40.0/go.mod h1:y0hY0exeL2Pku80/zKK7tpntoX23cqL3Oa6njdgRtds=
 golang.org/x/sys v0.0.0-20220715151400-c0bba94af5f8/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.11.0 h1:eG7RXZHdqOJ1i+0lgLgCpSXAp6M3LYlAo6osgSi0xOM=
+golang.org/x/sys v0.33.0 h1:q3i8TbbEz+JRD9ywIRlyRAQbM0qF7hu24q3teo2hbuw=
-golang.org/x/sys v0.11.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.33.0/go.mod h1:BJP2sWEmIv4KK5OTEluFJCKSidICx8ciO85XgH3Ak8k=
+golang.org/x/text v0.25.0 h1:qVyWApTSYLk/drJRO5mDlNYskwQznZmkpV2c8q9zls4=
+golang.org/x/text v0.25.0/go.mod h1:WEdwpYrmk1qmdHvhkSTNPm3app7v4rsT8F2UD6+VHIA=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
-gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7 h1:uRGJdciOHaEIrze2W8Q3AKkepLTh2hOroT7a+7czfdQ=
+gopkg.in/tomb.v2 v2.0.0-20161208151619-d5d1b5820637 h1:yiW+nvdHb9LVqSHQBXfZCieqV4fzYhNBql77zY0ykqs=
-gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw=
+gopkg.in/tomb.v2 v2.0.0-20161208151619-d5d1b5820637/go.mod h1:BHsqpu/nsuzkT5BpiH1EMZPLyqSMM8JbIavyFACoFNk=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c h1:dUUwHk2QECo/6vqA44rthZ8ie2QXMNeKRTHCNY2nXvo=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

internal/jabber/bf.go

@@ -0,0 +1,102 @@
+package jabber
+
+import (
+	"bufio"
+	"fmt"
+	"io"
+	"os"
+	"strings"
+
+	"github.com/jbrukh/bayesian"
+	log "github.com/sirupsen/logrus"
+)
+
+const (
+	goodDictionaryFile string         = "./data/good_dictionary.txt"
+	badDictionaryFile  string         = "./data/bad_dictionary.txt"
+	dataFile           string         = "./data/data.bin"
+	Bad                bayesian.Class = "Bad"
+	Good               bayesian.Class = "Good"
+)
+
+// Выдаёт "очки похожести" для данной фразы.
+func checkPhrase(s string) error { //nolint: unused
+	classifier, err := bayesian.NewClassifierFromFile(dataFile)
+
+	if err != nil {
+		return fmt.Errorf("unable to open %s: %w", dataFile, err)
+	}
+
+	s = nStringLower(s)
+
+	scores, _, _ := classifier.LogScores(strings.Split(s, " "))
+
+	_, err = fmt.Printf("Score %v\n", scores[0])
+
+	return err
+}
+
+// Выучивает слова из предопределённых словарей.
+func learn() error { //nolint: unused
+	classifier := bayesian.NewClassifier(Bad, Good)
+
+	if err := feed(classifier, goodDictionaryFile, Good); err != nil {
+		return err
+	}
+
+	if err := feed(classifier, badDictionaryFile, Bad); err != nil {
+		return err
+	}
+
+	if err := classifier.WriteToFile(dataFile); err != nil {
+		return fmt.Errorf("unable to save data to file %s: %w", dataFile, err)
+	}
+
+	return nil
+}
+
+// Дополняет заданный класс фразами из указанного файла.
+func feed(c *bayesian.Classifier, filename string, bc bayesian.Class) error { //nolint:unused
+	fh, err := os.Open(filename)
+
+	if err != nil {
+		return fmt.Errorf("unable to open file %s: %w", filename, err)
+	}
+
+	defer func(fh *os.File) {
+		if err := fh.Close(); err != nil {
+			log.Errorf("unable to close %s cleanly: %s", filename, err)
+		}
+	}(fh)
+
+	reader := bufio.NewReader(fh)
+
+	for {
+		line, err := reader.ReadString('\n')
+
+		line = nStringLower(line)
+
+		if err != nil {
+			// Правильно обрабатываем последнюю строку и конец файла.
+			if err == io.EOF {
+				if line != "" {
+					stuff := strings.Split(line, " ")
+					c.Learn(stuff, bc)
+				}
+
+				break
+			}
+
+			return fmt.Errorf("unable to read %s: %w", filename, err)
+		}
+
+		if line != "" {
+			stuff := strings.Split(line, " ")
+			c.Learn(stuff, bc)
+		}
+	}
+
+	return nil
+}
+
+/* vim: set ft=go noet ai ts=4 sw=4 sts=4: */

internal/jabber/black-whilte_lists.go

@@ -0,0 +1,206 @@
+package jabber
+
+import (
+	"encoding/json"
+	"errors"
+	"fmt"
+	"os"
+	"path/filepath"
+
+	"github.com/hjson/hjson-go"
+	log "github.com/sirupsen/logrus"
+)
+
+// ReadWhitelist читает и валидирует белые списки пользователей.
+func (j *Jabber) ReadWhitelist() error {
+	var (
+		whitelistLoaded = false
+		err             error
+		executablePath  string
+	)
+
+	executablePath, err = os.Executable()
+
+	if err != nil {
+		err = fmt.Errorf("unable to get current executable path: %w", err)
+
+		return err
+	}
+
+	whitelistJSONPath := fmt.Sprintf("%s/data/whitelist.json", filepath.Dir(executablePath))
+
+	locations := []string{
+		"~/.buny-jabber-bot-whitelist.json",
+		"~/buny-jabber-bot-whitelist.json",
+		"/etc/buny-jabber-bot-whitelist.json",
+		whitelistJSONPath,
+	}
+
+	for _, location := range locations {
+		fileInfo, err := os.Stat(location)
+
+		// Предполагаем, что файла либо нет, либо мы не можем его прочитать, второе надо бы логгировать, но пока забьём
+		if err != nil {
+			continue
+		}
+
+		// Файл белого списка длинноват для белого списка, попробуем следующего кандидата
+		if fileInfo.Size() > 2097152 {
+			log.Warnf("Whitelist file %s is too long for whitelist, skipping", location)
+
+			continue
+		}
+
+		buf, err := os.ReadFile(location)
+
+		// Не удалось прочитать, попробуем следующего кандидата
+		if err != nil {
+			log.Warnf("Skip reading whitelist file %s: %s", location, err)
+
+			continue
+		}
+
+		// Исходя из документации, hjson какбы умеет парсить "кривой" json, но парсит его в map-ку.
+		// Интереснее на выходе получить структурку: то есть мы вначале конфиг преобразуем в map-ку, затем эту map-ку
+		// сериализуем в json, а потом json превращаем в структурку. Не очень эффективно, но он и нечасто требуется.
+		var (
+			sampleWhitelist MyWhiteList
+			tmp             map[string]interface{}
+		)
+
+		err = hjson.Unmarshal(buf, &tmp)
+
+		// Не удалось распарсить - попробуем следующего кандидата
+		if err != nil {
+			log.Warnf("Skip parsing whitelist file %s: %s", location, err)
+
+			continue
+		}
+
+		tmpJSON, err := json.Marshal(tmp)
+
+		// Не удалось преобразовать map-ку в json
+		if err != nil {
+			log.Warnf("Skip parsing whitelist file %s: %s", location, err)
+
+			continue
+		}
+
+		if err := json.Unmarshal(tmpJSON, &sampleWhitelist); err != nil {
+			log.Warnf("Skip parsing whitelist file %s: %s", location, err)
+
+			continue
+		}
+
+		j.WhiteList = sampleWhitelist
+		whitelistLoaded = true
+
+		log.Infof("Using %s as whiteList file", location)
+
+		break
+	}
+
+	if !whitelistLoaded {
+		return errors.New("whitelist was not loaded") //nolint:goerr113
+	}
+
+	return err
+}
+
+// ReadBlacklist читает и валидирует чёрные списки пользователей.
+func (j *Jabber) ReadBlacklist() error {
+	var (
+		blacklistLoaded = false
+		err             error
+		executablePath  string
+	)
+
+	executablePath, err = os.Executable()
+
+	if err != nil {
+		err = fmt.Errorf("unable to get current executable path: %w", err)
+
+		return err
+	}
+
+	whitelistJSONPath := fmt.Sprintf("%s/data/blacklist.json", filepath.Dir(executablePath))
+
+	locations := []string{
+		"~/.bunyPresense-jabber-bot-blacklist.json",
+		"~/bunyPresense-jabber-bot-blacklist.json",
+		"/etc/bunyPresense-jabber-bot-blacklist.json",
+		whitelistJSONPath,
+	}
+
+	for _, location := range locations {
+		fileInfo, err := os.Stat(location)
+
+		// Предполагаем, что файла либо нет, либо мы не можем его прочитать, второе надо бы логгировать, но пока забьём
+		if err != nil {
+			continue
+		}
+
+		// Файл чёрного списка длинноват для чёрного списка, попробуем следующего кандидата
+		if fileInfo.Size() > 16777216 {
+			log.Warnf("Blacklist file %s is too long for blacklist, skipping", location)
+
+			continue
+		}
+
+		buf, err := os.ReadFile(location)
+
+		// Не удалось прочитать, попробуем следующего кандидата
+		if err != nil {
+			log.Warnf("Skip reading blacklist file %s: %s", location, err)
+
+			continue
+		}
+
+		// Исходя из документации, hjson какбы умеет парсить "кривой" json, но парсит его в map-ку.
+		// Интереснее на выходе получить структурку: то есть мы вначале конфиг преобразуем в map-ку, затем эту map-ку
+		// сериализуем в json, а потом json превращаем в структурку. Не очень эффективно, но он и нечасто требуется.
+		var (
+			sampleBlacklist MyBlackList
+			tmp             map[string]interface{}
+		)
+
+		err = hjson.Unmarshal(buf, &tmp)
+
+		// Не удалось распарсить - попробуем следующего кандидата
+		if err != nil {
+			log.Warnf("Skip parsing blacklist file %s: %s", location, err)
+
+			continue
+		}
+
+		tmpJSON, err := json.Marshal(tmp)
+
+		// Не удалось преобразовать map-ку в json
+		if err != nil {
+			log.Warnf("Skip parsing blacklist file %s: %s", location, err)
+
+			continue
+		}
+
+		if err := json.Unmarshal(tmpJSON, &sampleBlacklist); err != nil {
+			log.Warnf("Skip parsing whitelist file %s: %s", location, err)
+
+			continue
+		}
+
+		j.BlackList = sampleBlacklist
+		blacklistLoaded = true
+
+		log.Infof("Using %s as blacklist file", location)
+
+		break
+	}
+
+	if !blacklistLoaded {
+		return errors.New("blacklist was not loaded") //nolint:goerr113
+	}
+
+	return err
+}
+
+/* vim: set ft=go noet ai ts=4 sw=4 sts=4: */

internal/jabber/buny.go

@@ -0,0 +1,603 @@
+package jabber
+
+import (
+	"encoding/json"
+	"fmt"
+	"regexp"
+	"strings"
+
+	"github.com/davecgh/go-spew/spew"
+	"github.com/eleksir/go-xmpp"
+	log "github.com/sirupsen/logrus"
+)
+
+// BunyPresense производит проверку по бело-чёрным спискам. Если presence пришёл от злодея (из чёрного списка), то
+// отправляет его в бан.
+func (j *Jabber) BunyPresense(v xmpp.Presence) error { //nolint:gocognit,gocyclo
+	var err error
+
+	// Если у presence-а есть JID и presence из одной из комнат, в которой мы есть и если его домен в чёрном
+	// списке, заносим пидора в список outcast-ов
+	if v.JID != "" {
+		// На всякий случай: себя никогда не баним, явным образом
+		if v.JID == j.Talk.JID() {
+			return err
+		}
+
+		room := strings.SplitN(v.From, "/", 2)[0]
+
+		if room == "" {
+			log.Infof("We got empty room field in presence event, which kinda strange: %s", spew.Sdump(v))
+
+			return err
+		}
+
+		goodJid := strings.SplitN(v.JID, "/", 2)[0]
+
+		// Обрабатываем правила белого списка
+		for _, good := range j.WhiteList.Whitelist {
+			// Глобальный белый список
+			if good.RoomName == "" {
+				for _, person := range good.Jid {
+					if person == goodJid {
+						return err
+					}
+				}
+			}
+
+			// Белый список для конкретных каналов
+			if good.RoomName == room {
+				for _, person := range good.Jid {
+					if person == goodJid {
+						return err
+					}
+				}
+			}
+		}
+
+		id, err := j.QuerySoftwareVersion(v.From)
+
+		if err != nil {
+			err := fmt.Errorf(
+				"unable to query user software and version: jid=%s id=%s, err=%w",
+				v.JID,
+				id,
+				err,
+			)
+
+			j.GTomb.Kill(err)
+
+			return err
+		}
+
+		evilJid := strings.SplitN(v.JID, "/", 2)[0]
+		evilNick := ""
+		evilNicks := strings.SplitN(v.From, "/", 2)
+
+		// Давайте-ка похэндлим нонсенс - когда у нас в строке нету разделителя
+		if len(evilNicks) > 1 {
+			evilNick = evilNicks[1]
+		}
+
+		// Обрабатываем правила чёрного списка
+		for _, cRoom := range j.RoomsConnected {
+			if cRoom == room {
+				for _, bEntry := range j.BlackList.Blacklist {
+					// Обработаем правила глобального чёрного списка
+					if bEntry.RoomName == "" {
+						for _, jidRegexp := range bEntry.JidRe {
+							if jidRegexp == "" {
+								continue
+							}
+
+							re, err := regexp.Compile(jidRegexp)
+
+							if err != nil {
+								log.Errorf("Incorrect regexp in global blacklist: %s, skipping", jidRegexp)
+
+								continue
+							}
+
+							log.Debugf("Checking jid %s vs global blacklist regex %s", v.JID, jidRegexp)
+
+							if re.MatchString(v.JID) {
+								log.Warnf(
+									"Hammer falls on %s (%s): jid matches with global blacklist entry: %s",
+									v.From,
+									evilJid,
+									jidRegexp,
+								)
+
+								id, err := j.Squash(room, evilJid, bEntry.ReasonEnable, v.Type)
+
+								if err != nil {
+									err := fmt.Errorf(
+										"unable to ban user: id=%s, err=%w",
+										id,
+										err,
+									)
+
+									j.GTomb.Kill(err)
+								}
+
+								return err
+							}
+						}
+
+						for _, nickRegexp := range bEntry.NickRe {
+							if nickRegexp == "" {
+								continue
+							}
+
+							re, err := regexp.Compile(nickRegexp)
+
+							if err != nil {
+								log.Errorf("Incorrect regexp in global blacklist: %s, skipping", nickRegexp)
+
+								continue
+							}
+
+							log.Debugf("Checking nick %s vs global blacklist regex %s", evilNick, nickRegexp)
+
+							if re.MatchString(evilNick) {
+								log.Warnf(
+									"Hammer falls on %s (%s): nick matches with global blacklist entry: %s",
+									v.From,
+									evilJid,
+									nickRegexp,
+								)
+
+								// Баним именно jid
+								id, err := j.Squash(room, evilJid, bEntry.ReasonEnable, v.Type)
+
+								if err != nil {
+									err := fmt.Errorf(
+										"unable to ban user: id=%s, err=%w",
+										id,
+										err,
+									)
+
+									j.GTomb.Kill(err)
+								}
+
+								return err
+							}
+						}
+
+						continue
+					}
+
+					// Обработаем правила конкретного канала, комнаты конференции
+					if bEntry.RoomName == room {
+						for _, jidRegexp := range bEntry.JidRe {
+							if jidRegexp == "" {
+								continue
+							}
+
+							re, err := regexp.Compile(jidRegexp)
+
+							if err != nil {
+								log.Errorf("Incorrect regexp in room %s blacklist: %s, skipping", room, jidRegexp)
+
+								continue
+							}
+
+							log.Debugf("Checking jid %s vs room %s blacklist regex %s", v.JID, room, jidRegexp)
+
+							if re.MatchString(v.JID) {
+								log.Warnf(
+									"Hammer falls on %s (%s): jid matches with room blacklist entry: %s",
+									v.From,
+									evilJid,
+									jidRegexp,
+								)
+
+								id, err := j.Squash(room, evilJid, bEntry.ReasonEnable, v.Type)
+
+								if err != nil {
+									err := fmt.Errorf(
+										"unable to ban user: id=%s, err=%w",
+										id,
+										err,
+									)
+
+									j.GTomb.Kill(err)
+								}
+
+								return err
+							}
+						}
+
+						if bEntry.RoomName == room {
+							for _, nickRegexp := range bEntry.NickRe {
+								if nickRegexp == "" {
+									continue
+								}
+
+								re, err := regexp.Compile(nickRegexp)
+
+								if err != nil {
+									log.Errorf("Incorrect regexp in room %s blacklist: %s, skipping", room, nickRegexp)
+
+									continue
+								}
+
+								log.Debugf("Checking nick %s vs room %s blacklist regex %s", evilJid, room, nickRegexp)
+
+								if re.MatchString(evilNick) {
+									log.Warnf(
+										"Hammer falls on %s (%s): nick matches with room blacklist entry: %s",
+										v.From,
+										evilJid,
+										nickRegexp,
+									)
+
+									// Баним именно jid
+									id, err := j.Squash(room, evilJid, bEntry.ReasonEnable, v.Type)
+
+									if err != nil {
+										err := fmt.Errorf(
+											"unable to ban user: id=%s, err=%w",
+											id,
+											err,
+										)
+
+										j.GTomb.Kill(err)
+									}
+
+									return err
+								}
+							}
+						}
+
+						continue
+					}
+				}
+			}
+		}
+	}
+
+	return err
+}
+
+// BunyChat производит проверку сообщений участников чата по списку забаненных фраз и в случае нахождения запрещённого
+// шаблона банит участника чата.
+func (j *Jabber) BunyChat(v xmpp.Chat) error {
+	var (
+		room = (strings.SplitN(v.Remote, "/", 2))[0]
+		// nick = (strings.SplitN(v.Remote, "/", 2))[1]
+		err error
+	)
+
+	// Действовать мы можем только в рамках тех комнат, где явно присуствуем.
+	for _, cRoom := range j.RoomsConnected {
+		if cRoom == room {
+			// Перебирём правила чёрных списков.
+			for _, bEntry := range j.BlackList.Blacklist {
+				// Обработаем правила глобального чёрного списка
+				if bEntry.RoomName == "" {
+					for _, phraseRegexp := range bEntry.PhraseRe {
+						if phraseRegexp == "" {
+							continue
+						}
+
+						re, err := regexp.Compile(phraseRegexp)
+
+						if err != nil {
+							log.Errorf("Incorrect regexp in room %s blacklist: %s, skipping", room, phraseRegexp)
+
+							continue
+						}
+
+						log.Debugf("Checking phrase %s vs room %s blacklist regex %s", v.Text, room, phraseRegexp)
+
+						if re.MatchString(v.Text) {
+							realJID := j.GetRealJIDfromNick(v.Remote)
+
+							log.Warnf(
+								"Hammer falls on %s (%s): phrase matches with global blacklist entry: %s vs %s",
+								v.Remote,
+								realJID,
+								v.Text,
+								phraseRegexp,
+							)
+
+							if id, err := j.Squash(room, realJID, bEntry.ReasonEnable, v.Type); err != nil {
+								err := fmt.Errorf(
+									"unable to ban user: id=%s, err=%w",
+									id,
+									err,
+								)
+
+								j.GTomb.Kill(err)
+							}
+
+							return err
+						}
+					}
+				}
+
+				// Обработаем правила чёрного списка для конкретной комнаты
+				if bEntry.RoomName == room {
+					for _, phraseRegexp := range bEntry.PhraseRe {
+						if phraseRegexp == "" {
+							continue
+						}
+
+						re, err := regexp.Compile(phraseRegexp)
+
+						if err != nil {
+							log.Errorf("Incorrect regexp in room %s blacklist: %s, skipping", room, phraseRegexp)
+
+							continue
+						}
+
+						log.Debugf("Checking phrase %s vs room %s blacklist regex %s", v.Text, room, phraseRegexp)
+
+						if re.MatchString(v.Text) {
+							realJID := j.GetRealJIDfromNick(v.Remote)
+
+							log.Warnf(
+								"Hammer falls on %s (%s): phrase matches with room blacklist entry: %s vs %s",
+								v.Remote,
+								realJID,
+								v.Text,
+								phraseRegexp,
+							)
+
+							if id, err := j.Squash(room, realJID, bEntry.ReasonEnable, v.Type); err != nil {
+								err := fmt.Errorf(
+									"unable to ban user: id=%s, err=%w",
+									id,
+									err,
+								)
+
+								j.GTomb.Kill(err)
+							}
+
+							return err
+						}
+					}
+				}
+			}
+
+			// Если включено, проверяем фразу на КАПС.
+			for _, channel := range j.C.Jabber.Channels {
+				if channel.Name == room && channel.AllCaps.Enabled {
+					// Нормализуем строку и вырежем из неё пробелы
+					normPhrase := strings.ReplaceAll(nString(v.Text), " ", "")
+
+					// Проверяем согласно тому, что длина фразы более чем сколько-то символов
+					if len(normPhrase) >= channel.AllCaps.MinLength {
+						normPhraseUpper := strings.ReplaceAll(nStringUpper(v.Text), " ", "")
+
+						if normPhrase == normPhraseUpper {
+							realJID := j.GetRealJIDfromNick(v.Remote)
+							id, err := j.Squash(room, realJID, false, v.Type)
+
+							if err != nil {
+								err := fmt.Errorf(
+									"unable to ban user: id=%s, err=%w",
+									id,
+									err,
+								)
+
+								j.GTomb.Kill(err)
+							}
+						}
+					}
+				}
+			}
+
+			break
+		}
+	}
+
+	return err
+}
+
+// BunySoftwareVersion производит проверку по чёрному списку версий и названий клинтского ПО.
+func (j *Jabber) BunySoftwareVersion(v xmpp.IQ, ver IqResultSoftwareVersion) error {
+	var err error
+
+	if v.From != "" {
+		// На всякий случай: себя никогда не баним, явным образом
+		if v.From == j.Talk.JID() {
+			return err
+		}
+
+		room := strings.SplitN(v.From, "/", 2)[0]
+
+		var (
+			presenceJSONStrings []string
+		)
+
+		if presenceJSONInterface, present := j.RoomPresences.Get(room); present {
+			presenceJSONStrings = InterfaceToStringSlice(presenceJSONInterface)
+		}
+
+		log.Debugf("Looking up %s in presence db", v.From)
+
+		for _, presenceJSONString := range presenceJSONStrings {
+			var p xmpp.Presence
+			_ = json.Unmarshal([]byte(presenceJSONString), &p)
+
+			if p.Affiliation == "admin" || p.Affiliation == "owner" {
+				log.Infof("Skipping useragent blacklist check for %s because his affiliation is %s", v.From, p.Affiliation)
+
+				continue
+			}
+
+			// На всякий случай.
+			if p.Role == "moderator" {
+				log.Infof("Skipping useragent blacklist check for %s because his role is %s", v.From, p.Role)
+
+				continue
+			}
+
+			if v.From == p.From {
+				log.Errorf("Found jid of %s in presence db: %s", v.From, p.JID)
+
+				// Lookup in global blacklist.
+				for _, cRoom := range j.RoomsConnected {
+					if cRoom == room {
+						for _, bEntry := range j.BlackList.Blacklist {
+							// Обработаем правила глобального чёрного списка
+							if bEntry.RoomName == "" {
+								for _, useragent := range bEntry.UserAgent {
+									switch {
+									case useragent.Name != "" && useragent.Version != "" && useragent.Os != "":
+										if ver.Name == useragent.Name && ver.Version == useragent.Version && ver.Os == useragent.Os {
+											id, err := j.Squash(room, p.JID, bEntry.ReasonEnable, v.Type)
+
+											if err != nil {
+												err := fmt.Errorf(
+													"unable to ban user: id=%s, err=%w",
+													id,
+													err,
+												)
+
+												j.GTomb.Kill(err)
+											}
+
+											return err
+										}
+
+									case useragent.Name != "" && useragent.Version != "":
+										if ver.Name == useragent.Name && ver.Version == useragent.Version {
+											id, err := j.Squash(room, p.JID, bEntry.ReasonEnable, v.Type)
+
+											if err != nil {
+												err := fmt.Errorf(
+													"unable to ban user: id=%s, err=%w",
+													id,
+													err,
+												)
+
+												j.GTomb.Kill(err)
+											}
+
+											return err
+										}
+
+									case useragent.Name != "":
+										if ver.Name == useragent.Name {
+											id, err := j.Squash(room, p.JID, bEntry.ReasonEnable, v.Type)
+
+											if err != nil {
+												err := fmt.Errorf(
+													"unable to ban user: id=%s, err=%w",
+													id,
+													err,
+												)
+
+												j.GTomb.Kill(err)
+											}
+
+											return err
+										}
+
+									case useragent.Version != "":
+										if ver.Version == useragent.Version {
+											id, err := j.Squash(room, p.JID, bEntry.ReasonEnable, v.Type)
+
+											if err != nil {
+												err := fmt.Errorf(
+													"unable to ban user: id=%s, err=%w",
+													id,
+													err,
+												)
+
+												j.GTomb.Kill(err)
+											}
+
+											return err
+										}
+									}
+								}
+							}
+
+							if bEntry.RoomName == room {
+								for _, useragent := range bEntry.UserAgent {
+									switch {
+									case useragent.Name != "" && useragent.Version != "" && useragent.Os != "":
+										if ver.Name == useragent.Name && ver.Version == useragent.Version && ver.Os == useragent.Os {
+											id, err := j.Squash(room, p.JID, bEntry.ReasonEnable, v.Type)
+
+											if err != nil {
+												err := fmt.Errorf(
+													"unable to ban user: id=%s, err=%w",
+													id,
+													err,
+												)
+
+												j.GTomb.Kill(err)
+											}
+
+											return err
+										}
+
+									case useragent.Name != "" && useragent.Version != "":
+										if ver.Name == useragent.Name && ver.Version == useragent.Version {
+											id, err := j.Squash(room, p.JID, bEntry.ReasonEnable, v.Type)
+
+											if err != nil {
+												err := fmt.Errorf(
+													"unable to ban user: id=%s, err=%w",
+													id,
+													err,
+												)
+
+												j.GTomb.Kill(err)
+											}
+
+											return err
+										}
+
+									case useragent.Name != "":
+										if ver.Name == useragent.Name {
+											id, err := j.Squash(room, p.JID, bEntry.ReasonEnable, v.Type)
+
+											if err != nil {
+												err := fmt.Errorf(
+													"unable to ban user: id=%s, err=%w",
+													id,
+													err,
+												)
+
+												j.GTomb.Kill(err)
+											}
+
+											return err
+										}
+
+									case useragent.Version != "":
+										if ver.Version == useragent.Version {
+											id, err := j.Squash(room, p.JID, bEntry.ReasonEnable, v.Type)
+
+											if err != nil {
+												err := fmt.Errorf(
+													"unable to ban user: id=%s, err=%w",
+													id,
+													err,
+												)
+
+												j.GTomb.Kill(err)
+											}
+
+											return err
+										}
+									}
+								}
+							}
+						}
+					}
+				}
+			}
+		}
+	}
+
+	return err
+}
+
+/* vim: set ft=go noet ai ts=4 sw=4 sts=4: */

internal/jabber/collection.go

@@ -1,4 +1,4 @@
-package main
+package jabber
 
 import (
 	"sync"

internal/jabber/commands.go

@@ -0,0 +1,250 @@
+package jabber
+
+import (
+	"fmt"
+	"slices"
+	"strings"
+
+	"github.com/davecgh/go-spew/spew"
+	"github.com/eleksir/go-xmpp"
+	log "github.com/sirupsen/logrus"
+)
+
+// Cmd парсит команды из чятика.
+func (j *Jabber) Cmd(v xmpp.Chat) error {
+	var err error
+
+	switch {
+	case v.Text == fmt.Sprintf("%shelp", j.C.CSign) || v.Text == fmt.Sprintf("%sпомощь", j.C.CSign):
+		var (
+			answer         string
+			chosenOneTalks = false
+		)
+
+		realJID := j.GetRealJIDfromNick(v.Remote)
+
+		for _, master := range j.C.Jabber.BotMasters {
+			if (strings.SplitN(realJID, "/", 2))[0] == master {
+				chosenOneTalks = true
+			}
+		}
+
+		if chosenOneTalks {
+			answer = fmt.Sprintf("%sпомощь       - этот список команд\n", j.C.CSign)
+			answer += fmt.Sprintf("%shelp         - this commands list\n", j.C.CSign)
+			answer += fmt.Sprintf("%srehash       - reload white and black lists (available to bot admins only)\n", j.C.CSign)
+			answer += fmt.Sprintf("%sver|%sversion - prints version of software", j.C.CSign, j.C.CSign)
+		} else {
+			answer = "Ничем помочь не могу. Луна не светит на тебя."
+		}
+
+		dest := v.Remote
+
+		if v.Type == "groupchat" {
+			dest = (strings.SplitN(v.Remote, "/", 2))[0]
+		}
+
+		if _, err := j.Talk.Send(
+			xmpp.Chat{ //nolint:exhaustruct
+				Remote: dest,
+				Text:   strings.TrimSpace(answer),
+				Type:   v.Type,
+			},
+		); err != nil {
+			err = fmt.Errorf("unable to send message to %s: %w", v.Remote, err)
+
+			return err
+		}
+
+	case v.Text == fmt.Sprintf("%srehash", j.C.CSign): //nolint:wsl
+		/* Эта команда может прилетать из приватной беседы с realjid-ом, из приватной беседы с chat-nick-ом, а также из
+		 * чятика.
+		 * Groupchat мы можем определить по v.Type (groupchat) и тогда понятно что делать.
+		 * А вот, например, приватные притязания определить несколько сложно-вато. Но можно попробовать, например,
+		 * пытаться по списку presence-ов находить персонажа и его real jid и уже из этого определять master он или нет.
+		 */
+
+		// Попробуем определить каков алгоритм наших действий, в зависимости от типа сообщения
+		switch v.Type {
+		case "groupchat":
+			// Проверим, является ли "командир" избранным или это самозванец?
+			var (
+				chosenOneTalks = false
+				listsLoaded    = true
+			)
+
+			realJID := j.GetRealJIDfromNick(v.Remote)
+
+			for _, master := range j.C.Jabber.BotMasters {
+				if (strings.SplitN(realJID, "/", 2))[0] == master {
+					chosenOneTalks = true
+				}
+			}
+
+			if !chosenOneTalks {
+				log.Infof(
+					"Command %srehash given by non-bot_master user %s(%s), ignoring",
+					j.C.CSign,
+					realJID,
+					v.Remote,
+				)
+
+				var msg xmpp.Chat
+				msg.Remote = v.Remote
+				msg.Type = v.Type
+				msg.Text = "Ничем помочь не могу. Луна не светит на тебя."
+
+				_, err := j.Talk.Send(msg)
+
+				return err
+			}
+
+			if err := j.ReadWhitelist(); err != nil {
+				listsLoaded = false
+
+				var msg xmpp.Chat
+				msg.Remote = v.Remote
+				msg.Type = "chat" // private message
+				msg.Text = fmt.Sprint(err)
+
+				if _, err := j.Talk.Send(msg); err != nil {
+					return err
+				}
+			}
+
+			if err := j.ReadBlacklist(); err != nil {
+				listsLoaded = false
+
+				var msg xmpp.Chat
+				msg.Remote = v.Remote
+				msg.Type = "chat" // private message
+				msg.Text = fmt.Sprint(err)
+
+				if _, err := j.Talk.Send(msg); err != nil {
+					return err
+				}
+			}
+
+			if listsLoaded {
+				room := (strings.SplitN(v.Remote, "/", 2))[0]
+
+				var msg xmpp.Chat
+				msg.Remote = room
+				msg.Type = v.Type
+				msg.Text = "Сделано"
+
+				if _, err := j.Talk.Send(msg); err != nil {
+					return err
+				}
+			}
+		case "chat":
+			room := (strings.SplitN(v.Remote, "/", 2))[0]
+
+			// Реагировать на приватную команду "из комнаты", только если бот в комнате
+			if slices.Contains(j.RoomsConnected, room) {
+				var (
+					chosenOneTalks = false
+					listsLoaded    = true
+				)
+
+				// Реагировать на rehash только если собеседник является bot master-ом
+				realJID := j.GetRealJIDfromNick(v.Remote)
+
+				for _, master := range j.C.Jabber.BotMasters {
+					if (strings.SplitN(realJID, "/", 2))[0] == master {
+						chosenOneTalks = true
+					}
+				}
+
+				if !chosenOneTalks {
+					log.Infof(
+						"Command %srehash given by non-bot_master user %s(%s), ignoring",
+						j.C.CSign,
+						realJID,
+						v.Remote,
+					)
+
+					var msg xmpp.Chat
+					msg.Remote = v.Remote
+					msg.Type = v.Type
+					msg.Text = "Ничем помочь не могу. Луна не светит на тебя."
+
+					_, err := j.Talk.Send(msg)
+
+					return err
+				}
+
+				if err := j.ReadWhitelist(); err != nil {
+					listsLoaded = false
+
+					var msg xmpp.Chat
+					msg.Remote = v.Remote
+					msg.Type = v.Type
+					msg.Text = fmt.Sprint(err)
+
+					if _, err := j.Talk.Send(msg); err != nil {
+						return err
+					}
+				}
+
+				if err := j.ReadBlacklist(); err != nil {
+					listsLoaded = false
+
+					var msg xmpp.Chat
+					msg.Remote = v.Remote
+					msg.Type = v.Type
+					msg.Text = fmt.Sprint(err)
+
+					if _, err := j.Talk.Send(msg); err != nil {
+						return err
+					}
+				}
+
+				if listsLoaded {
+					var msg xmpp.Chat
+					msg.Remote = v.Remote
+					msg.Type = v.Type
+					msg.Text = "Сделано"
+
+					if _, err := j.Talk.Send(msg); err != nil {
+						return err
+					}
+				}
+			}
+
+		default:
+			log.Infof("Rehash command from outer space: %s", spew.Sdump(v))
+		}
+
+		return err
+	case v.Text == fmt.Sprintf("%sver", j.C.CSign) || v.Text == fmt.Sprintf("%sversion", j.C.CSign):
+		var (
+			answer = fmt.Sprintf("Version %s", j.C.Version)
+		)
+
+		dest := v.Remote
+
+		if v.Type == "groupchat" {
+			dest = (strings.SplitN(v.Remote, "/", 2))[0]
+		}
+
+		if _, err := j.Talk.Send(
+			xmpp.Chat{ //nolint:exhaustruct
+				Remote: dest,
+				Text:   strings.TrimSpace(answer),
+				Type:   v.Type,
+			},
+		); err != nil {
+			err = fmt.Errorf("unable to send message to %s: %w", v.Remote, err)
+
+			return err
+		}
+
+	default:
+		return err
+	}
+
+	return err
+}
+
+/* vim: set ft=go noet ai ts=4 sw=4 sts=4: */

internal/jabber/event_parser.go

@@ -1,8 +1,11 @@
-package main
+package jabber
 
 import (
+	"encoding/json"
 	"encoding/xml"
 	"fmt"
+	"runtime"
+	"sort"
 	"strings"
 	"time"
 
@@ -12,9 +15,9 @@ import (
 	"golang.org/x/exp/slices"
 )
 
-// parseEvent парсит ивенты, прилетающие из модуля xmpp (изменения presence, фразы участников, ошибки).
+// ParseEvent парсит ивенты, прилетающие из модуля xmpp (изменения presence, фразы участников, ошибки).
-func parseEvent(e interface{}) { //nolint:maintidx,gocognit,gocyclo
+func (j *Jabber) ParseEvent(e interface{}) { //nolint:maintidx,gocognit,gocyclo
-	lastServerActivity = time.Now().Unix()
+	j.LastServerActivity = time.Now().Unix()
 
 	switch v := e.(type) {
 	// Сообщение в чяти
@@ -30,20 +33,35 @@ func parseEvent(e interface{}) { //nolint:maintidx,gocognit,gocyclo
 
 			// Групповой чятик
 			case "groupchat":
-				log.Debugf("Message from public chat: %s", v.Text)
+				var (
-				// dest := strings.SplitN(v.Remote, "/", 2)[0]
+					room = strings.SplitN(v.Remote, "/", 2)[0]
-				nick := strings.SplitN(v.Remote, "/", 2)[1]
+					nick = strings.SplitN(v.Remote, "/", 2)[1]
+				)
 
-				if nick == config.Jabber.Nick {
+				log.Debugf("Message from public chat: %s", v.Text)
+
+				if nick == j.GetBotNickFromRoomConfig(room) {
 					log.Debug("Skipping message from myself")
 
 					return
 				}
 
-				lastActivity = lastServerActivity
+				if err := j.Cmd(v); err != nil {
+					j.GTomb.Kill(err)
+
+					return
+				}
+
+				if err := j.BunyChat(v); err != nil {
+					j.GTomb.Kill(err)
+
+					return
+				}
+
+				j.LastActivity = j.LastServerActivity
 
 				if muc, _ := strings.CutSuffix(v.Remote, "/"); muc != "" {
-					lastMucActivity.Set(muc, lastServerActivity)
+					j.LastMucActivity.Set(muc, j.LastServerActivity)
 				}
 
 			// Приватный чятик
@@ -53,7 +71,13 @@ func parseEvent(e interface{}) { //nolint:maintidx,gocognit,gocyclo
 				//  eleksir@jabber.ru/array.lan - это если мы работаем через ростер
 				log.Debugf("Private message: %s", v.Text)
 
-				lastActivity = lastServerActivity
+				if err := j.Cmd(v); err != nil {
+					j.GTomb.Kill(err)
+
+					return
+				}
+
+				j.LastActivity = j.LastServerActivity
 
 			// Внезапно, ошибки. По идее они должны ассоциироваться с отправляемыми сообщениями, но по ходу это
 			// не реализовано, поэтому мы получаем ошибки в форме отдельного чятика
@@ -78,13 +102,13 @@ func parseEvent(e interface{}) { //nolint:maintidx,gocognit,gocyclo
 			log.Debug("Looks like IQ get query")
 
 			if muc, _ := strings.CutSuffix(v.To, "/"); muc != "" {
-				if slices.Contains(roomsConnected, muc) {
+				if slices.Contains(j.RoomsConnected, muc) {
-					lastMucActivity.Set(muc, lastServerActivity)
+					j.LastMucActivity.Set(muc, j.LastServerActivity)
 				}
 			}
 
 			var (
-				iqStruct   jabberSimpleIqGetQuery
+				iqStruct   SimpleIqGetQuery
 				parseError bool
 			)
 
@@ -95,11 +119,11 @@ func parseEvent(e interface{}) { //nolint:maintidx,gocognit,gocyclo
 				case "jabber:iq:version":
 					log.Infof("Got IQ get request for version from %s", v.From)
 
-					if id, err := talk.IqVersionResponse(
+					if id, err := j.Talk.IqVersionResponse(
 						v,
-						"buny-jabber-bot",
+						j.C.ExeName,
-						"1.с_чем-то",
+						j.C.Version,
-						"линупс",
+						(strings.SplitN(runtime.GOOS, "/", 2))[0],
 					); err != nil {
 						err := fmt.Errorf(
 							"unable to send version info to jabber server: id=%s, err=%w",
@@ -107,7 +131,7 @@ func parseEvent(e interface{}) { //nolint:maintidx,gocognit,gocyclo
 							err,
 						)
 
-						gTomb.Kill(err)
+						j.GTomb.Kill(err)
 
 						return
 					}
@@ -118,14 +142,14 @@ func parseEvent(e interface{}) { //nolint:maintidx,gocognit,gocyclo
 				case "urn:xmpp:ping":
 					log.Infof("Got IQ get request for pong from %s", v.From)
 
-					if id, err := talk.PingResponse(v); err != nil {
+					if id, err := j.Talk.PingResponse(v); err != nil {
 						err := fmt.Errorf(
 							"unable to send pong to jabber server: id=%s, err=%w",
 							id,
 							err,
 						)
 
-						gTomb.Kill(err)
+						j.GTomb.Kill(err)
 
 						return
 					}
@@ -137,14 +161,14 @@ func parseEvent(e interface{}) { //nolint:maintidx,gocognit,gocyclo
 				case "jabber:iq:last":
 					log.Infof("Got IQ get last activity time request from %s", v.From)
 
-					if id, err := talk.JabberIqLastResponse(v, lastActivity); err != nil {
+					if id, err := j.Talk.JabberIqLastResponse(v, j.LastActivity); err != nil {
 						err := fmt.Errorf(
 							"unable to send last activity time to jabber server: id=%s, err=%w",
 							id,
 							err,
 						)
 
-						gTomb.Kill(err)
+						j.GTomb.Kill(err)
 
 						return
 					}
@@ -160,10 +184,12 @@ func parseEvent(e interface{}) { //nolint:maintidx,gocognit,gocyclo
 					answer += "<feature var=\"urn:xmpp:time\" />"
 					answer += "<feature var=\"urn:xmpp:ping\" />"
 					answer += "<feature var=\"jabber:iq:last\" />"
+					answer += "<feature var=\"http://jabber.org/protocol/caps\" />"
 					answer += "<feature var=\"http://jabber.org/protocol/disco#info\" />"
+					answer += "<feature var=\"http://jabber.org/protocol/muc\" />"
 					answer += "</query>"
 
-					if id, err := talk.RawInformation(
+					if id, err := j.Talk.RawInformation(
 						v.To,
 						v.From,
 						v.ID,
@@ -176,7 +202,7 @@ func parseEvent(e interface{}) { //nolint:maintidx,gocognit,gocyclo
 							err,
 						)
 
-						gTomb.Kill(err)
+						j.GTomb.Kill(err)
 
 						return
 					}
@@ -187,7 +213,7 @@ func parseEvent(e interface{}) { //nolint:maintidx,gocognit,gocyclo
 				case xmpp.XMPPNS_DISCO_ITEMS:
 					log.Infof("Got IQ get disco#items request from %s, answer service unavailable", v.From)
 
-					if _, err := talk.ErrorServiceUnavailable(
+					if _, err := j.Talk.ErrorServiceUnavailable(
 						v,
 						"http://jabber.org/protocol/disco#info",
 						"http://jabber.org/protocol/commands",
@@ -198,7 +224,7 @@ func parseEvent(e interface{}) { //nolint:maintidx,gocognit,gocyclo
 							err,
 						)
 
-						gTomb.Kill(err)
+						j.GTomb.Kill(err)
 
 						return
 					}
@@ -218,21 +244,21 @@ func parseEvent(e interface{}) { //nolint:maintidx,gocognit,gocyclo
 
 			// Попробуем распарсить входящий запрос как urn:xmpp:time
 			if parseError {
-				var iqStruct jabberTimeIqGetQuery
+				var iqStruct TimeIqGetQuery
 
 				if err := xml.Unmarshal(v.Query, &iqStruct); err == nil {
 					switch iqStruct.Xmlns {
 					case "urn:xmpp:time":
 						log.Infof("Got IQ get time request from %s", v.From)
 
-						if id, err := talk.UrnXmppTimeResponse(v, "+00:00"); err != nil {
+						if id, err := j.Talk.UrnXMPPTimeResponse(v, "+00:00"); err != nil {
 							err := fmt.Errorf(
 								"unable to send urn:xmpp:time to jabber server: id=%s, err=%w",
 								id,
 								err,
 							)
 
-							gTomb.Kill(err)
+							j.GTomb.Kill(err)
 
 							return
 						}
@@ -252,14 +278,14 @@ func parseEvent(e interface{}) { //nolint:maintidx,gocognit,gocyclo
 
 			// Попробуем распарсить входящий запрос как http://jabber.org/protocol/pubsub
 			if parseError {
-				var iqStruct jabberPubsubIQGetQuery
+				var iqStruct PubsubIQGetQuery
 
 				if err := xml.Unmarshal(v.Query, &iqStruct); err == nil {
 					switch iqStruct.Xmlns {
 					case xmpp.XMPPNS_PUBSUB:
 						log.Infof("Got IQ get pubsub request from %s, answer feature unimplemented", v.From)
 
-						if id, err := talk.ErrorNotImplemented(
+						if id, err := j.Talk.ErrorNotImplemented(
 							v,
 							"http://jabber.org/protocol/pubsub#errors",
 							"subscribe",
@@ -269,7 +295,7 @@ func parseEvent(e interface{}) { //nolint:maintidx,gocognit,gocyclo
 								err,
 							)
 
-							gTomb.Kill(err)
+							j.GTomb.Kill(err)
 
 							return
 						}
@@ -290,19 +316,19 @@ func parseEvent(e interface{}) { //nolint:maintidx,gocognit,gocyclo
 			// Предполагается, что такие респонсы должны приходить только для пинга без серверной оптимизации.
 			// Хотя идейно мы не поддерживаем работу без серверной оптимизации, но на пинг ответим, нам несложно.
 			if parseError {
-				var iqStruct jabberIqPing
+				var iqStruct IqPing
 
 				if err := xml.Unmarshal(v.Query, &iqStruct); err == nil {
 					log.Debugf("Got IQ get request (actually, response) for MUC Self-Ping from %s", v.From)
 
-					if id, err := talk.PingResponse(v); err != nil {
+					if id, err := j.Talk.PingResponse(v); err != nil {
 						err := fmt.Errorf(
 							"unable to send pong to jabber server: id=%s, err=%w",
 							id,
 							err,
 						)
 
-						gTomb.Kill(err)
+						j.GTomb.Kill(err)
 
 						return
 					}
@@ -319,28 +345,28 @@ func parseEvent(e interface{}) { //nolint:maintidx,gocognit,gocyclo
 
 		case xmpp.IQTypeResult:
 			if muc, _ := strings.CutSuffix(v.To, "/"); muc != "" {
-				if slices.Contains(roomsConnected, muc) {
+				if slices.Contains(j.RoomsConnected, muc) {
-					lastMucActivity.Set(muc, lastServerActivity)
+					j.LastMucActivity.Set(muc, j.LastServerActivity)
 				}
 			}
 
 			switch {
 			// Похоже на pong от сервера (по стандарту в ответе нету query, но go-xmpp нам подсовывает это)
-			case v.From == config.Jabber.Server && v.To == talk.JID() && string(v.Query) == "<XMLElement></XMLElement>":
+			case v.From == j.C.Jabber.Server && v.To == j.Talk.JID() && string(v.Query) == "<XMLElement></XMLElement>":
 				log.Debugf("Got S2C pong answer from %s to %s", v.From, v.To)
-				serverPingTimestampRx = time.Now().Unix() //nolint:wsl
+				j.ServerPingTimestampRx = time.Now().Unix() //nolint:wsl
 
-			// Похоже на понг второй стадии xep-0410 MUC-Ping-а, который у нас не реализован
+			// Похоже на понг второй стадии xep-0410 MUC-Ping-а, который у нас не реализован.
-			case v.To == talk.JID() && string(v.Query) == "<XMLElement></XMLElement>":
+			case v.To == j.Talk.JID() && string(v.Query) == "<XMLElement></XMLElement>":
-				mucNameMatch := slices.Contains(roomsConnected, v.From)
+				mucNameMatch := slices.Contains(j.RoomsConnected, v.From)
 
 				if mucNameMatch {
 					log.Debugf("Got server-optimized MUC pong answer (xep-0410) from %s to %s", v.From, v.To)
 				} else {
 					mucNickMatch := false
 
-					for _, room := range roomsConnected {
+					for _, room := range j.RoomsConnected {
-						mucNick := fmt.Sprintf("%s/%s", room, config.Jabber.Nick)
+						mucNick := fmt.Sprintf("%s/%s", room, j.GetBotNickFromRoomConfig(room))
 
 						if v.From == mucNick {
 							mucNickMatch = true
@@ -351,12 +377,89 @@ func parseEvent(e interface{}) { //nolint:maintidx,gocognit,gocyclo
 
 					if mucNickMatch {
 						log.Debugf("Got 2-nd stage MUC pong answer (xep-0410) from %s to %s", v.From, v.To)
-						// Поскольку никакой логики у нас на этот счёт не предусмотрено, то просто пропускаем ответ
 					} else {
+						// Поскольку никакой логики у нас на этот счёт не предусмотрено, то просто пропускаем ответ
 						log.Infof("Got unknown pong from %s to %s", v.From, v.To)
 						log.Debug(spew.Sdump(e))
 					}
 				}
+
+			// Подтверждение бана
+			case v.To == j.Talk.JID() && v.ID == "ban1":
+				mucNickMatch := false
+
+				// Если ник, которому предназначается сообщение, совпадает с ником, из конфига бота (глобального или для
+				// комнаты), то считаем, что мы есть в этой комнате. Потому что в противном случае в roomsConnected не
+				// будет искомой комнаты и мы не сможем составить ник бота, чтобы сравнить его с тем, кому адресовано
+				// уведомление.
+				for _, room := range j.RoomsConnected {
+					mucNick := fmt.Sprintf("%s/%s", room, j.GetBotNickFromRoomConfig(room))
+
+					if v.To == mucNick {
+						mucNickMatch = true
+
+						break
+					}
+				}
+
+				// Формально, ответ должен парситься как пустой result и совпадать с типом jabberSimpleIqGetQuery
+				// Ответ приходит с 2 xmlns, похоже, он парсится неправильно в go-xmpp.
+				// TODO: после исправления go-xmpp, надо исправить это тут
+				var iqStruct SimpleIqGetQuery
+
+				if err := xml.Unmarshal(v.Query, &iqStruct); err == nil {
+					if iqStruct.Xmlns == "http://jabber.org/protocol/muc#admin" && iqStruct.Text == "" {
+						if mucNickMatch {
+							// Поскольку никакой логики у нас на этот счёт не предусмотрено, то просто пропускаем ответ
+							log.Infof("Got ban successful from %s to %s", v.From, v.To)
+						} else {
+							log.Infof("Got ban successful from %s to %s, from room we are not in", v.From, v.To)
+							log.Debug(spew.Sdump(e))
+						}
+					} else {
+						log.Infof("Got strange ban successful message from %s to %s", v.From, v.To)
+						log.Debug(spew.Sdump(e))
+					}
+				} else {
+					log.Infof("Got strange ban successful message from %s to %s", v.From, v.To)
+					log.Debug(spew.Sdump(e))
+				}
+
+			// Ответ с результатом адресован нам.
+			case v.To == j.Talk.JID():
+				var softwareVersion IqResultSoftwareVersion
+				if err := xml.Unmarshal(v.Query, &softwareVersion); err == nil {
+					if softwareVersion.Os == "" {
+						log.Infof(
+							"Recieved software version query result for %s: software=%s version=%s",
+							v.From,
+							softwareVersion.Name,
+							softwareVersion.Version,
+						)
+					} else {
+						log.Infof(
+							"Recieved software version query result for %s: software=%s version=%s os=%s",
+							v.From,
+							softwareVersion.Name,
+							softwareVersion.Version,
+							softwareVersion.Os,
+						)
+					}
+
+					if err = j.BunySoftwareVersion(v, softwareVersion); err != nil {
+						log.Errorf("Unable to query client software version: %s", err)
+
+						j.GTomb.Kill(err)
+
+						return
+					}
+
+					return
+				}
+
+				log.Info("Got an IQ result. Dunno how deal with it, discarding")
+				log.Debug(spew.Sdump(e))
+
 			default:
 				log.Info("Got an IQ result. Dunno how deal with it, discarding")
 				log.Debug(spew.Sdump(e))
@@ -365,14 +468,14 @@ func parseEvent(e interface{}) { //nolint:maintidx,gocognit,gocyclo
 		// Этот бот не управляется со стороны сервера, поэтому все попытки порулить игнорируем
 		case xmpp.IQTypeSet:
 			if muc, _ := strings.CutSuffix(v.To, "/"); muc != "" {
-				if slices.Contains(roomsConnected, muc) {
+				if slices.Contains(j.RoomsConnected, muc) {
-					lastMucActivity.Set(muc, lastServerActivity)
+					j.LastMucActivity.Set(muc, j.LastServerActivity)
 				}
 			}
 
 			log.Info("Got an IQ request for set something. Answer not implemented")
 
-			if id, err := talk.ErrorNotImplemented(
+			if id, err := j.Talk.ErrorNotImplemented(
 				v,
 				"http://jabber.org/protocol/commands",
 				xmpp.IQTypeSet,
@@ -383,7 +486,7 @@ func parseEvent(e interface{}) { //nolint:maintidx,gocognit,gocyclo
 					err,
 				)
 
-				gTomb.Kill(err)
+				j.GTomb.Kill(err)
 
 				return
 			}
@@ -395,18 +498,18 @@ func parseEvent(e interface{}) { //nolint:maintidx,gocognit,gocyclo
 			// Если сервер не хочет пинговаться и отвечает ошибкой на пинг, то наверно он не умеет в пинги,
 			// хотя если мы его пингуем, значит он анонсировал такой capability. Вот, засранец!
 			var (
-				iqPingStruct jabberIqPing
+				iqPingStruct IqPing
 				parseError   = true
 			)
 
 			if err := xml.Unmarshal(v.Query, &iqPingStruct); err == nil {
 				if iqPingStruct.Xmlns == "urn:xmpp:ping" {
-					if v.From == config.Jabber.Server {
+					if v.From == j.C.Jabber.Server {
 						msg := "Server announced that it can answer c2s ping, but gives us an error to such query, "
 						msg += "fallback to keepalive whitespace pings"
 						log.Error(msg)
 
-						serverCapsList.Set("urn:xmpp:ping", false)
+						j.ServerCapsList.Set("urn:xmpp:ping", false)
 					} else {
 						log.Errorf("Got 'ping unsupported' message from: %s to: %s", v.From, v.To)
 					}
@@ -420,27 +523,29 @@ func parseEvent(e interface{}) { //nolint:maintidx,gocognit,gocyclo
 
 			// Это у нас пинг xep-0410 и мы не в комнате, предполагается, что надо бы заджойниться
 			if parseError {
-				var iqErrorCancelNotAcceptable jabberIqErrorCancelNotAcceptable
+				var iqErrorCancelNotAcceptable IqErrorCancelNotAcceptable
 
 				if err := xml.Unmarshal(v.Query, &iqErrorCancelNotAcceptable); err == nil {
-					if v.To == talk.JID() {
+					if v.To == j.Talk.JID() {
 						nick := strings.SplitN(v.From, "/", 2)[1]
+						room := strings.SplitN(v.From, "/", 2)[0]
 
-						if slices.Contains(roomsConnected, iqErrorCancelNotAcceptable.By) && nick == config.Jabber.Nick {
+						if slices.Contains(j.RoomsConnected, iqErrorCancelNotAcceptable.By) &&
+							nick == j.GetBotNickFromRoomConfig(room) {
 							log.Errorf(
 								"Got Iq error message from: %s to: %s. Looks like i'm not in MUC anymore",
 								v.From, v.To,
 							)
 
-							time.Sleep(time.Duration(config.Jabber.MucRejoinDelay) * time.Second)
+							time.Sleep(time.Duration(j.C.Jabber.MucRejoinDelay) * time.Second)
 
-							if _, err := talk.JoinMUCNoHistory(iqErrorCancelNotAcceptable.By, nick); err != nil {
+							if _, err := j.Talk.JoinMUCNoHistory(iqErrorCancelNotAcceptable.By, nick); err != nil {
 								err := fmt.Errorf(
 									"looks like connection to server also lost err=%w",
 									err,
 								)
 
-								gTomb.Kill(err)
+								j.GTomb.Kill(err)
 
 								return
 							}
@@ -476,8 +581,8 @@ func parseEvent(e interface{}) { //nolint:maintidx,gocognit,gocyclo
 	// Смена статуса участника
 	case xmpp.Presence:
 		if muc, _ := strings.CutSuffix(v.To, "/"); muc != "" {
-			if slices.Contains(roomsConnected, muc) {
+			if slices.Contains(j.RoomsConnected, muc) {
-				lastMucActivity.Set(muc, lastServerActivity)
+				j.LastMucActivity.Set(muc, j.LastServerActivity)
 			}
 		}
 
@@ -488,39 +593,114 @@ func parseEvent(e interface{}) { //nolint:maintidx,gocognit,gocyclo
 			// клиента забанят из-за спама "вошёл-вышел".
 			// Однако, это не значит, что такую ситуацию мы не должны корректным образом обрабатывать.
 			if v.Type == "unavailable" {
+				// Считаем, что мы больше не в комнате, поэтому не знаем, кто там есть
+				j.RoomPresences.Delete(v.From)
+
 				log.Error("Presence notification - looks like another instance of client leaves room")
 
-				if slices.Contains(roomsConnected, v.From) {
+				if slices.Contains(j.RoomsConnected, v.From) {
-					go joinMuc(v.From)
+					go j.JoinMuc(v.From)
 				}
 			} else {
 				log.Errorf("Presence notification, Type: %s, From: %s, Show: %s, Status: %s",
 					v.Type, v.From, v.Show, v.Status)
-				log.Errorf(spew.Sdump(v))
+				log.Error(spew.Sdump(v))
 			}
 		} else {
-			log.Infof("Presence notification, Type: %s, From: %s, To: %s Show: %s, Status: %s, Affiliation: %s, Role: %s, JID: %s",
+			log.Infof(
-				v.Type, v.From, v.To, v.Show, v.Status, v.Affiliation, v.Role, v.JID)
+				"Presence notification, Type: %s, From: %s, To: %s Show: %s, Status: %s, Affiliation: %s, Role: %s, JID: %s",
+				v.Type, v.From, v.To, v.Show, v.Status, v.Affiliation, v.Role, v.JID,
+			)
+
+			room := strings.SplitN(v.From, "/", 2)[0]
+			nick := strings.SplitN(v.From, "/", 2)[1]
+
+			if nick == "" {
+				log.Infof("Presence stanza contains incorrect from attribute: %s", v.From)
+
+				return
+			}
 
 			// Это наш собственный Presence
 			if v.Show == "" && v.Status == "" {
-				if from := strings.Split(v.From, "/"); from[1] == config.Jabber.Nick {
+				if nick == j.GetBotNickFromRoomConfig(room) {
-					roomsConnected = append(roomsConnected, from[0])
+					j.RoomsConnected = append(j.RoomsConnected, room)
+					// На всякий случай дедуплицируем список комнат, к которым мы заджойнились.
+					sort.Strings(j.RoomsConnected)
+					slices.Compact(j.RoomsConnected)
 				}
 			}
 
-			if err := buny(v); err != nil {
+			switch v.Role {
-				gTomb.Kill(err)
+			// Участник ушёл
+			case "none":
+				if presenceJSONInterface, present := j.RoomPresences.Get(room); present {
+					presenceJSONStrings := InterfaceToStringSlice(presenceJSONInterface)
 
-				return
+					var newPresenceJSONStrings []string
+
+					for _, presenceJSONstring := range presenceJSONStrings {
+						var p xmpp.Presence
+						_ = json.Unmarshal([]byte(presenceJSONstring), &p)
+
+						if p.From == v.From {
+							continue
+						}
+
+						newPresenceJSONStrings = append(newPresenceJSONStrings, presenceJSONstring)
+					}
+
+					j.RoomPresences.Set(room, newPresenceJSONStrings)
+				}
+			// Участник пришёл
+			default:
+				var (
+					presenceJSONStrings    []string
+					newPresenceJSONStrings []string
+					presenceJSONBytes      []byte
+				)
+
+				if presenceJSONInterface, present := j.RoomPresences.Get(room); present {
+					presenceJSONStrings = InterfaceToStringSlice(presenceJSONInterface)
+				}
+
+				for _, presenceJSONString := range presenceJSONStrings {
+					var p xmpp.Presence
+					_ = json.Unmarshal([]byte(presenceJSONString), &p)
+
+					// Если находим, что у нас уже есть клиент с таким же From, то есть полным nick-ом (для groupchat)
+					// просто замещаем его.
+					if p.From == v.From {
+						continue
+					}
+
+					newPresenceJSONStrings = append(newPresenceJSONStrings, presenceJSONString)
+				}
+
+				presenceJSONBytes, _ = json.Marshal(v) //nolint:errchkjson
+				newPresenceJSONStrings = append(newPresenceJSONStrings, string(presenceJSONBytes))
+				j.RoomPresences.Set(room, newPresenceJSONStrings)
+			}
+
+			// Проверяем, а не злодей ли зашёл? Сделать это мы можем, только если мы находимся в комнате.
+			// По правилам, мы можем что-то делать, только после того, как нам прилетит наш собственный presence, это
+			// значит, что мы вошли в комнату.
+			if slices.Contains(j.RoomsConnected, room) {
+				if v.Affiliation != "outcast" {
+					if err := j.BunyPresense(v); err != nil {
+						j.GTomb.Kill(err)
+
+						return
+					}
+				}
 			}
 		}
 
 	// Ответ на запрос поддерживаемых фич, который "http://jabber.org/protocol/disco#info"
 	case xmpp.DiscoResult:
 		if muc, _ := strings.CutSuffix(v.To, "/"); muc != "" {
-			if slices.Contains(roomsConnected, muc) {
+			if slices.Contains(j.RoomsConnected, muc) {
-				lastMucActivity.Set(muc, lastServerActivity)
+				j.LastMucActivity.Set(muc, j.LastServerActivity)
 			}
 		}
 
@@ -532,10 +712,10 @@ func parseEvent(e interface{}) { //nolint:maintidx,gocognit,gocyclo
 				// Конкретно сейчас нас интересует только поддержка c2s ping
 				for _, feature := range v.Features {
 					log.Debugf("Server %s announced that it supports feature: %s", v.From, feature)
-					serverCapsList.Set(feature, true)
+					j.ServerCapsList.Set(feature, true)
 				}
 
-				serverCapsQueried = true
+				j.ServerCapsQueried = true
 
 			case "conference":
 				mucCaps := make(map[string]bool)
@@ -545,7 +725,7 @@ func parseEvent(e interface{}) { //nolint:maintidx,gocognit,gocyclo
 					mucCaps[feature] = true //nolint:wsl
 				}
 
-				mucCapsList.Set(v.From, mucCaps)
+				j.MucCapsList.Set(v.From, mucCaps)
 
 			case "pubsub":
 				log.Debugf("PubSub component %s reply to disco#info, skipping", v.From)

internal/jabber/main_loop.go

@@ -0,0 +1,82 @@
+package jabber
+
+import (
+	"time"
+
+	log "github.com/sirupsen/logrus"
+)
+
+// MyLoop - основной цикл программы.
+func (j *Jabber) MyLoop() error {
+	for {
+		// Зададим начальное значение глобальным переменным
+		j.ServerPingTimestampRx = 0
+		j.ServerPingTimestampTx = 0
+		j.RoomsConnected = make([]string, 1)
+		j.LastActivity = 0
+		j.LastServerActivity = 0
+		j.LastMucActivity = NewCollection()
+		j.ServerCapsQueried = false
+		j.ServerCapsList = NewCollection()
+		j.MucCapsList = NewCollection()
+		j.ServerPingTimestampTx = 0
+		j.ServerPingTimestampRx = 0
+		j.RoomPresences = NewCollection()
+
+		// Установим коннект
+		if err := j.EstablishConnection(); err != nil {
+			log.Error(err)
+
+			return err
+		}
+
+		j.ServerPingTimestampRx = time.Now().Unix() // Считаем, что если коннект запустился, то первый пинг успешен.
+
+		// Тыкаем сервер палочкой, проверяем, что коннект жив и вываливаемся из mainLoop, если он не жив.
+		j.GTomb.Go(
+			func() error {
+				err := j.ProbeServerLiveness()
+				log.Error(err)
+
+				return err
+			},
+		)
+
+		// Тыкаем muc-и палочкой, проверяем, что они живы и вываливаемся из mainLoop, если пинги пропали.
+		// Если пинги до комнаты пропали, то это фактически значит, что либо сервер потерял связь с MUC-компонентом,
+		// либо у нас какой-то wire error.
+		// j.GTomb.Go() тут зовётся внутри на каждую комнату, если у нас ошибка, эта горутинка рано или поздно выйдет.
+		go j.ProbeMUCLiveness()
+
+		// Гребём ивенты...
+		for {
+			// Стриггерилось завершение работы приложения, или соединение не установлено (порвалось, например)
+			// грести не надо
+			if j.Shutdown {
+				break
+			}
+
+			if !j.IsConnected {
+				// Tight loop - это наверно не очень хорошо, думаю, ничего страшного не будет, если мы поспим 100мс.
+				time.Sleep(100 * time.Millisecond)
+
+				continue
+			}
+
+			// Вынимаем ивент из "провода"
+			chat, err := j.Talk.Recv()
+
+			if err != nil {
+				log.Errorf("Unable to get recieve data from socket: %s", err)
+
+				return err
+			}
+
+			j.ParseEvent(chat)
+		}
+
+		return nil
+	}
+}
+
+/* vim: set ft=go noet ai ts=4 sw=4 sts=4: */

internal/jabber/norm_string.go

@@ -0,0 +1,56 @@
+package jabber
+
+import (
+	"regexp"
+	"strings"
+)
+
+// Переменные для простенького нормализатора текста.
+var (
+	// Знаки препинания раз.
+	pMarks = []string{".", ",", "!", "@", "#", "$", "%", "^", "&", "*", "(", ")", "{", "}", "<", ">", "[", "]", "\\"}
+
+	// Знаки препинания два-с.
+	pMarks2 = []string{"-", "_", "+", "=", ":", ";", "'", "`", "~", "\""}
+
+	// Символы новой строки.
+	newLines = []string{"\n", "\r", "\n\r", "\r\n"}
+)
+
+// Нормализует текстовый буфер. Убирает начальные и конечные пробельные символы, заменяет сносы строк пробелами, удаляет
+// знаки препинания, схлопывает повторяющиеся пробелы в один символ.
+func nString(buf string) string {
+	// Убираем пробелы вначале текстового буфера и в конце.
+	buf = strings.Trim(buf, "\n\r\t ")
+
+	// Убираем знаки препинания.
+	for _, pMark := range pMarks {
+		buf = strings.ReplaceAll(buf, pMark, "")
+	}
+
+	for _, pMark := range pMarks2 {
+		buf = strings.ReplaceAll(buf, pMark, "")
+	}
+
+	// Замещаем сносы строки пробелами.
+	for _, newline := range newLines {
+		buf = strings.ReplaceAll(buf, newline, " ")
+	}
+
+	// Схлопываем повторяющиеся пробелы.
+	buf = regexp.MustCompile(`\s+`).ReplaceAllString(buf, " ")
+
+	return buf
+}
+
+// Обёртка для nString, возвращает нормализованную строку в нижнем регистре.
+func nStringLower(buf string) string { //nolint:unused
+	return strings.ToLower(nString(buf))
+}
+
+// Обёртка для nString, возвращает нормализованную строку в верхнем регистре.
+func nStringUpper(buf string) string {
+	return strings.ToUpper(nString(buf))
+}
+
+/* vim: set ft=go noet ai ts=4 sw=4 sts=4: */

internal/jabber/query_version.go

@@ -0,0 +1,36 @@
+package jabber
+
+import (
+	"fmt"
+
+	"github.com/eleksir/go-xmpp"
+	"github.com/google/uuid"
+	log "github.com/sirupsen/logrus"
+)
+
+// QuerySoftwareVersion запрошивает версию и название клиента.
+func (j *Jabber) QuerySoftwareVersion(jid string) (string, error) {
+	var (
+		id  string
+		err error
+	)
+
+	if id, err = j.Talk.RawInformationQuery(
+		j.Talk.JID(),
+		jid,
+		uuid.New().String(),
+		xmpp.IQTypeGet,
+		"jabber:iq:version",
+		"",
+	); err != nil {
+		err = fmt.Errorf(
+			"unable to query software version of jid=%s err=%w",
+			jid,
+			err,
+		)
+	} else {
+		log.Infof("Query software version of %s", jid)
+	}
+
+	return id, err
+}

internal/jabber/read_config.go

@@ -0,0 +1,280 @@
+package jabber
+
+import (
+	"encoding/json"
+	"errors"
+	"fmt"
+	"os"
+	"path/filepath"
+
+	"github.com/hjson/hjson-go"
+	log "github.com/sirupsen/logrus"
+)
+
+// ReadConfig читает и валидирует конфиг, а также выставляет некоторые default-ы, если значений для параметров в конфиге
+// нет.
+func (j *Jabber) ReadConfig() error { //nolint:gocognit,gocyclo
+	var (
+		err            error
+		executablePath string
+		configLoaded   = false
+	)
+
+	executablePath, err = os.Executable()
+
+	if err != nil {
+		err := fmt.Errorf("unable to get current executable path: %w", err)
+
+		return err
+	}
+
+	configJSONPath := fmt.Sprintf("%s/data/config.json", filepath.Dir(executablePath))
+
+	locations := []string{
+		"~/.buny-jabber-bot.json",
+		"~/buny-jabber-bot.json",
+		"/etc/buny-jabber-bot.json",
+		configJSONPath,
+	}
+
+	for _, location := range locations {
+		fileInfo, err := os.Stat(location)
+
+		// Предполагаем, что файла либо нет, либо мы не можем его прочитать, второе надо бы логгировать, но пока забьём.
+		if err != nil {
+			continue
+		}
+
+		// Конфиг-файл длинноват для конфига, попробуем следующего кандидата.
+		if fileInfo.Size() > 2777216 {
+			log.Warnf("Config file %s is too long for config, skipping", location)
+
+			continue
+		}
+
+		buf, err := os.ReadFile(location)
+
+		// Не удалось прочитать, попробуем следующего кандидата.
+		if err != nil {
+			log.Warnf("Skip reading config file %s: %s", location, err)
+
+			continue
+		}
+
+		// Исходя из документации, hjson какбы умеет парсить "кривой" json, но парсит его в map-ку.
+		// Интереснее на выходе получить структурку: то есть мы вначале конфиг преобразуем в map-ку, затем эту map-ку
+		// сериализуем в json, а потом json превращаем в структурку. Не очень эффективно, но он и нечасто требуется.
+		var (
+			sampleConfig MyConfig
+			tmp          map[string]interface{}
+		)
+
+		err = hjson.Unmarshal(buf, &tmp)
+
+		// Не удалось распарсить - попробуем следующего кандидата.
+		if err != nil {
+			log.Warnf("Skip parsing config file %s: %s", location, err)
+
+			continue
+		}
+
+		tmpJSON, err := json.Marshal(tmp)
+
+		// Не удалось преобразовать map-ку в json
+		if err != nil {
+			log.Warnf("Skip parsing config file %s: %s", location, err)
+
+			continue
+		}
+
+		if err := json.Unmarshal(tmpJSON, &sampleConfig); err != nil {
+			log.Warnf("Skip parsing config file %s: %s", location, err)
+
+			continue
+		}
+
+		// Значения для Jabber-клиента
+		if sampleConfig.Jabber.Server == "" {
+			log.Error("Jabber server is not defined in config, using localhost")
+			sampleConfig.Jabber.Server = "localhost" //nolint:wsl
+		}
+
+		if sampleConfig.Jabber.Port == 0 {
+			sampleConfig.Jabber.Port = 5222
+
+			if sampleConfig.Jabber.Ssl {
+				if !sampleConfig.Jabber.StartTLS {
+					sampleConfig.Jabber.Port = 5223
+
+					log.Info("Jabber port is not defined in config, using 5223")
+				} else {
+					log.Info("Jabber port is not defined in config, using 5222")
+				}
+			}
+		}
+
+		if !sampleConfig.Jabber.Ssl {
+			sampleConfig.Jabber.StartTLS = false
+		}
+
+		if !sampleConfig.Jabber.Ssl || !sampleConfig.Jabber.StartTLS {
+			sampleConfig.Jabber.SslVerify = false
+		}
+
+		// sampleConfig.Jabber.InsecureAllowUnencryptedAuth = false, если не задан
+
+		if sampleConfig.Jabber.ConnectionTimeout == 0 {
+			sampleConfig.Jabber.ConnectionTimeout = 10
+
+			log.Info("Jabber server connection_timeout not defined in config, using 10 seconds")
+		}
+
+		if sampleConfig.Jabber.ReconnectDelay == 0 {
+			sampleConfig.Jabber.ReconnectDelay = 3
+
+			log.Info("Jabber server reconnect_delay not defined in config, using 3 seconds")
+		}
+
+		if sampleConfig.Jabber.ServerPingDelay == 0 {
+			sampleConfig.Jabber.ServerPingDelay = 60
+
+			log.Info("Jabber server_ping_delay not defined in config, using 60 seconds")
+		}
+
+		if sampleConfig.Jabber.MucPingDelay == 0 {
+			sampleConfig.Jabber.MucPingDelay = 900
+
+			log.Info("Jabber muc_ping_delay not defined in config, using 900 seconds")
+		}
+
+		if sampleConfig.Jabber.MucRejoinDelay == 0 {
+			sampleConfig.Jabber.MucRejoinDelay = 3
+
+			log.Info("Jabber muc_rejoin_delay not defined in config, using 3 seconds")
+		}
+
+		if sampleConfig.Jabber.PingSplayDelay == 0 {
+			sampleConfig.Jabber.PingSplayDelay = 3
+
+			log.Info("Jabber ping_splay_delay not defined in config, using 3 seconds")
+		}
+
+		if sampleConfig.Jabber.Nick == "" {
+			return errors.New("jabber nick is not defined in config, quitting") //nolint:goerr113
+		}
+
+		if sampleConfig.Jabber.Resource == "" {
+			sampleConfig.Jabber.Resource = "bunyPresense bot"
+
+			log.Info("Jabber resource not defined in config, using bunyPresense bot")
+		}
+
+		if sampleConfig.Jabber.User == "" {
+			sampleConfig.Jabber.User = fmt.Sprintf("%s@%s", sampleConfig.Jabber.Nick, sampleConfig.Jabber.Server)
+
+			log.Infof("Jabber user not defined in config, guessing, it can be %s", sampleConfig.Jabber.User)
+		}
+
+		// Если sampleConfig.Jabber.Password не задан, то авторизации не будет
+
+		// Если не задано ни одного мастера, то бот сам себе мастер
+		if len(sampleConfig.Jabber.BotMasters) == 0 {
+			sampleConfig.Jabber.BotMasters[0] = sampleConfig.Jabber.User
+		}
+
+		// Нам бот нужен в каких-то чат-румах, а не "просто так"
+		if len(sampleConfig.Jabber.Channels) < 1 {
+			return errors.New("no jabber channels/rooms defined in config, quitting") //nolint:goerr113
+		}
+
+		for n, channel := range sampleConfig.Jabber.Channels {
+			if channel.Name == "" {
+				return errors.New("no \"name\" entry in jabber channel config") //nolint:goerr113
+			}
+
+			if channel.Nick == "" {
+				sampleConfig.Jabber.Channels[n].Nick = sampleConfig.Jabber.Nick
+			}
+
+			// channel.Password может быть пустым, тогда пароля нет
+			// channel.Bayes.Enabled будет false, если не проставлен
+
+			if channel.Bayes.MinLength < 40 {
+				channel.Bayes.MinLength = 40
+			}
+
+			if channel.Bayes.MinWords < 8 {
+				channel.Bayes.MinWords = 8
+			}
+
+			switch channel.Bayes.DefaultAction {
+			case "kick":
+			case "ban":
+			case "devoice":
+			default:
+				channel.Bayes.DefaultAction = "log"
+			}
+
+			// channel.AllCaps.Enabled будет false, если не указан
+			if channel.AllCaps.MinLength < 10 {
+				channel.AllCaps.MinLength = 10
+			}
+
+			switch channel.AllCaps.DefaultAction {
+			case "kick":
+			case "ban":
+			case "devoice":
+			default:
+				channel.AllCaps.DefaultAction = "log"
+			}
+		}
+
+		// Если список фраз с которыми стартует бот пустой, вносим в него 1 запись с пустой строкой
+		if len(sampleConfig.Jabber.StartupStatus) == 0 {
+			sampleConfig.Jabber.StartupStatus[0] = ""
+		}
+
+		// Если список статусов, с которыми работает бот пустой, вносим в него 1 запись с пустой строкой
+		if len(sampleConfig.Jabber.RuntimeStatus.Text) == 0 {
+			sampleConfig.Jabber.RuntimeStatus.Text[0] = ""
+		}
+
+		// Если sampleConfig.Jabber.RuntimeStatus.RotationTime не задан, то он равен 0
+		// Если sampleConfig.Jabber.RuntimeStatus.RotationSplayTime не задан, то он равен 0
+
+		// Если sampleConfig.Jabber.BanDelay не задан, то он равен 0
+		// Если sampleConfig.Jabber.BanPhrasesEnable не задан, то он false
+
+		// Если список фраз, с которыми банят пустой, то вносим в него одну позицию с пустой строкой
+		if len(sampleConfig.Jabber.BanPhrases) == 0 {
+			sampleConfig.Jabber.BanPhrases[0] = ""
+		}
+
+		if sampleConfig.CSign == "" {
+			sampleConfig.CSign = "!"
+		}
+
+		if sampleConfig.Loglevel == "" {
+			sampleConfig.Loglevel = "info"
+
+			log.Info("loglevel not defined in config, using info")
+		}
+
+		// sampleConfig.Log = "" if not set
+
+		j.C = sampleConfig
+		configLoaded = true
+
+		log.Infof("Using %s as config file", location)
+
+		break
+	}
+
+	if !configLoaded {
+		return errors.New("config was not loaded") //nolint:goerr113
+	}
+
+	return err //nolint:wrapcheck
+}
+
+/* vim: set ft=go noet ai ts=4 sw=4 sts=4: */

internal/jabber/sig_handler.go

@@ -0,0 +1,62 @@
+package jabber
+
+import (
+	"os"
+	"syscall"
+
+	"github.com/eleksir/go-xmpp"
+	log "github.com/sirupsen/logrus"
+)
+
+func (j *Jabber) SigHandler() error {
+	log.Debug("Installing signal handler")
+
+	for s := range j.SigChan {
+		switch s {
+		case syscall.SIGINT:
+			log.Infoln("Got SIGINT, quitting")
+		case syscall.SIGTERM:
+			log.Infoln("Got SIGTERM, quitting")
+		case syscall.SIGQUIT:
+			log.Infoln("Got SIGQUIT, quitting")
+
+		// Заходим на новую итерацию, если у нас "неинтересный" сигнал.
+		default:
+			continue
+		}
+
+		// Чтобы не срать в логи ошибками, проставим shutdown state приложения в true.
+		j.Shutdown = true
+
+		if j.IsConnected && !j.Shutdown {
+			log.Debug("Try to set our presence to Unavailable and status to Offline")
+
+			// Вот тут понадобится коллекция известных пользователей, чтобы им разослать presence, что бот свалил в
+			// offline. Пока за неимением лучшего сообщим об этом самим себе.
+			for _, room := range j.RoomsConnected {
+				if _, err := j.Talk.SendPresence(
+					xmpp.Presence{ //nolint:exhaustruct
+						To:     room,
+						Status: "Offline",
+						Type:   "unavailable",
+					},
+				); err != nil {
+					log.Infof("Unable to send presence to jabber server: %s", err)
+				}
+			}
+
+			// И закрываем соединение.
+			log.Infoln("Closing connection to jabber server")
+
+			if err := j.Talk.Close(); err != nil {
+				log.Infof("Unable to close connection to jabber server: %s", err)
+			}
+		}
+
+		os.Exit(0)
+	}
+
+	return nil
+}
+
+/* vim: set ft=go noet ai ts=4 sw=4 sts=4: */

internal/jabber/squash.go

@@ -0,0 +1,80 @@
+package jabber
+
+import (
+	"fmt"
+	"time"
+
+	"github.com/eleksir/go-xmpp"
+)
+
+// Squash банит указанный jid в указанной комнате.
+// reasonEnable указывает, надо ли писать дату автобана в банлисте в поле reason (это единственная причина, в которую
+// умеет бот).
+func (j *Jabber) Squash(room, jid string, reasonEnable bool, vType string) (string, error) {
+	var (
+		id  string
+		err error
+	)
+
+	if j.C.Jabber.BanPhrasesEnable {
+		phrase := RandomPhrase(j.C.Jabber.BanPhrases)
+
+		if _, err = j.Talk.Send(
+			xmpp.Chat{ //nolint:exhaustruct
+				Remote: room,
+				Text:   phrase,
+				Type:   vType,
+			},
+		); err != nil {
+			err = fmt.Errorf("unable to send phrase to room %s: %w", room, err)
+
+			// Здесь возвращаем nil, т.к. за нас ошибку залоггирует код выше.
+			return id, err
+		}
+	}
+
+	// https://xmpp.org/extensions/xep-0045.html#ban баним вот таким сообщением
+	ban := "<item affiliation='outcast' jid='" + jid + "'>"
+
+	if reasonEnable {
+		var t = time.Now()
+		ban += fmt.Sprintf(
+			"<reason>autoban at %04d.%02d.%02d %02d:%02d:%02d</reason>",
+			t.Year(),
+			t.Month(),
+			t.Day(),
+			t.Hour(),
+			t.Minute(),
+			t.Second(),
+		)
+	} else {
+		ban += "<reason />"
+	}
+
+	ban += "</item>"
+
+	// Выжидаем некоторое время перед баном. А то можно настолько рано забанить, что сервер не внесёт злодея в банлист
+	// комнаты и пришлёт affiliation: none вместо affiliation: outcast.
+	if j.C.Jabber.BanDelay > 0 {
+		time.Sleep(time.Duration(j.C.Jabber.BanDelay) * time.Millisecond)
+	}
+
+	if id, err = j.Talk.RawInformationQuery(
+		j.Talk.JID(),
+		room,
+		"ban1",
+		xmpp.IQTypeSet,
+		"http://jabber.org/protocol/muc#admin",
+		ban,
+	); err != nil {
+		err = fmt.Errorf(
+			"unable to ban user: id=%s, err=%w",
+			id,
+			err,
+		)
+	}
+
+	return id, err
+}
+
+/* vim: set ft=go noet ai ts=4 sw=4 sts=4: */

internal/jabber/types.go

@@ -0,0 +1,215 @@
+package jabber
+
+import (
+	"encoding/xml"
+	"os"
+
+	"github.com/eleksir/go-xmpp"
+	"gopkg.in/tomb.v2"
+)
+
+// MyConfig прототип структурки с конфигом.
+type MyConfig struct {
+	Jabber struct {
+		Server                       string   `json:"server,omitempty"`
+		Port                         int      `json:"port,omitempty"`
+		Ssl                          bool     `json:"ssl,omitempty"`
+		StartTLS                     bool     `json:"starttls,omitempty"`
+		SslVerify                    bool     `json:"ssl_verify,omitempty"`
+		InsecureAllowUnencryptedAuth bool     `json:"insecureallowunencryptedauth,omitempty"`
+		ConnectionTimeout            int64    `json:"connection_timeout,omitempty"`
+		ReconnectDelay               int64    `json:"reconnect_delay,omitempty"`
+		ServerPingDelay              int64    `json:"server_ping_delay,omitempty"`
+		MucPingDelay                 int64    `json:"muc_ping_delay,omitempty"`
+		MucRejoinDelay               int64    `json:"muc_rejoin_delay,omitempty"`
+		PingSplayDelay               int64    `json:"ping_splay_delay,omitempty"`
+		Nick                         string   `json:"nick,omitempty"`
+		Resource                     string   `json:"resource,omitempty"`
+		User                         string   `json:"user,omitempty"`
+		Password                     string   `json:"password,omitempty"`
+		BotMasters                   []string `json:"bot_masters,omitempty"`
+		Channels                     []struct {
+			Name     string `json:"name,omitempty"`
+			Nick     string `json:"nick,omitempty"`
+			Password string `json:"password,omitempty"`
+			Bayes    struct {
+				Enabled       bool   `json:"enabled,omitempty"`
+				MinWords      int64  `json:"min_words,omitempty"`
+				MinLength     int    `json:"min_length,omitempty"`
+				DefaultAction string `json:"default_action,omitempty"`
+			} `json:"bayes,omitempty"`
+			AllCaps struct {
+				Enabled       bool   `json:"enabled,omitempty"`
+				MinLength     int    `json:"min_length,omitempty"`
+				DefaultAction string `json:"default_action,omitempty"`
+			} `json:"all_caps,omitempty"`
+		} `json:"channels"`
+		StartupStatus []string `json:"startup_status,omitempty"`
+		RuntimeStatus struct {
+			Text              []string `json:"text,omitempty"`
+			RotationTime      int64    `json:"rotation_time,omitempty"`
+			RotationSplayTime int64    `json:"rotation_splay_time,omitempty"`
+		} `json:"runtime_status,omitempty"`
+		BanDelay         int64    `json:"ban_delay,omitempty"`
+		BanPhrasesEnable bool     `json:"ban_phrases_enable,omitempty"`
+		BanPhrases       []string `json:"ban_phrases,omitempty"`
+	} `json:"jabber,omitempty"`
+
+	CSign    string `json:"csign,omitempty"`
+	Loglevel string `json:"loglevel,omitempty"`
+	Log      string `json:"log,omitempty"`
+	Version  string `json:"version,omitempty"`
+	ExeName  string `json:"exe_name,omitempty"`
+}
+
+// MyWhiteList прототип структурки с белым списком jid-ов.
+type MyWhiteList struct {
+	Whitelist []struct {
+		RoomName string   `json:"room_name,omitempty"`
+		Jid      []string `json:"jid,omitempty"`
+		WipeBans bool     `json:"wipe_bans,omitempty"`
+	} `json:"whitelist,omitempty"`
+}
+
+// MyBlackList прототип структурки с чёрным списком jid-ов.
+type MyBlackList struct {
+	Blacklist []struct {
+		RoomName     string   `json:"room_name,omitempty"`
+		ReasonEnable bool     `json:"reason_enable,omitempty"`
+		JidRe        []string `json:"jid_re,omitempty"`
+		NickRe       []string `json:"nick_re,omitempty"`
+		PhraseRe     []string `json:"phrase_re,omitempty"`
+		UserAgent    []struct {
+			Name    string `json:"name,omitempty"`
+			Version string `json:"version,omitempty"`
+			Os      string `json:"os,omitempty"`
+		} `json:"user_agent,omitempty"`
+	} `json:"blacklist,omitempty"`
+}
+
+// Jabber основная структура-объект, содержащая стейты и проч.
+type Jabber struct {
+	// C - конфиг, как он распарсился из конфиг-файла.
+	C MyConfig
+
+	// WhiteList - структурка с безусловно разрешёнными jid-ами
+	WhiteList MyWhiteList
+
+	// BlackList - структурка с запрещёнными по регуляркам фразами, никами, jid-ами.
+	BlackList MyBlackList
+
+	// Опции подключения к xmpp-серверу.
+	Options *xmpp.Options
+
+	// gTomb пул активных горутин.
+	GTomb tomb.Tomb
+
+	// Talk основная структурка xmpp-клиента.
+	Talk *xmpp.Client
+
+	// sync.Map-ка с капабилити сервера.
+	ServerCapsList *Collection
+
+	// ServerCapsQueried показывает, были ли запрошены capabilities сервера.
+	ServerCapsQueried bool
+
+	// Время последней активности, нужно для c2s пингов - посылаем пинги, только если давненько ничего не приходило с
+	// сервера.
+	LastServerActivity int64
+
+	// Время, когда был отправлен c2s ping.
+	ServerPingTimestampTx int64
+
+	// Время, когда был принят s2c pong.
+	ServerPingTimestampRx int64
+
+	// Время последней активности, нужно для jabber:iq:last.
+	LastActivity int64
+
+	// sync.Map-ка с комнатами и их capability.
+	MucCapsList *Collection
+
+	// Время последней активности MUC-ов, нужно для пингов - посылаем пинги, только если давненько ничего не приходило из
+	// muc-ов.
+	LastMucActivity *Collection
+
+	// Список комнат, в которых находится бот.
+	RoomsConnected []string
+
+	// sync.Map-ка со списком участников конференций (в json-формате, согласно структуре xmpp.Presence, "room".[]json).
+	RoomPresences *Collection
+
+	// Канал, по котором приходят сообщения о том, что ОС отправила некие сигналы процессу.
+	SigChan chan os.Signal
+
+	// Индиктор того, что процесс завершается.
+	Shutdown bool
+
+	// Индиктор того, что соединение установлено.
+	IsConnected bool
+
+	// Индикатор того, что соединение в процессе достукивания до сервера.
+	Connecting bool
+}
+
+// SimpleIqGetQuery прототип структурки для разбора запросов xmpp discovery query, например,
+// https://xmpp.org/extensions/xep-0030.html#example-18 .
+type SimpleIqGetQuery struct {
+	XMLName xml.Name `xml:"query"`
+	Text    string   `xml:",chardata"`
+	Xmlns   string   `xml:"xmlns,attr"`
+	Node    string   `xml:"node,attr,omitempty"` // для xmlns="http://jabber.org/protocol/disco#items"
+}
+
+// PubsubIQGetQuery прототип структурки для разбора запросов xmpp pubsub.
+type PubsubIQGetQuery struct {
+	XMLName xml.Name `xml:"pubsub"`
+	Text    string   `xml:",chardata"`
+	Xmlns   string   `xml:"xmlns,attr"`
+	Items   struct {
+		Text     string `xml:",chardata"`
+		Node     string `xml:"node,attr"`
+		MaxItems string `xml:"max_items,attr"`
+	} `xml:"items"`
+}
+
+// TimeIqGetQuery прототип структурки для разбора IQ запросов на локальное время клиента,
+// https://xmpp.org/extensions/xep-0202.html
+type TimeIqGetQuery struct {
+	// <time xmlns="urn:xmpp:time"/>
+	XMLName xml.Name `xml:"time"`
+	Text    string   `xml:",chardata"`
+	Xmlns   string   `xml:"xmlns,attr"`
+}
+
+// IqPing прототип структурки для разбора IQ запросов на пинг клиента, https://xmpp.org/extensions/xep-0199.html
+type IqPing struct {
+	XMLName xml.Name `xml:"ping"`
+	Text    string   `xml:",chardata"`
+	Xmlns   string   `xml:"xmlns,attr"`
+}
+
+// IqErrorCancelNotAcceptable прототип структурки для разбора IQ ответов, когда сервис (сервер, клиент, etc) не
+// может или не хочет принимать наш iq-запрос https://xmpp.org/extensions/xep-0099.html
+type IqErrorCancelNotAcceptable struct {
+	XMLName       xml.Name `xml:"error"`
+	Text          string   `xml:",chardata"`
+	Type          string   `xml:"type,attr"`
+	By            string   `xml:"by,attr"`
+	NotAcceptable struct {
+		Text  string `xml:",chardata"`
+		Xmlns string `xml:"xmlns,attr"`
+	} `xml:"not-acceptable"`
+}
+
+// IqResultSoftwareVersion прототип структурки для разбора IQ ответов на запрос о названии и версии клиентского ПО.
+type IqResultSoftwareVersion struct {
+	XMLName xml.Name `xml:"query"`
+	Text    string   `xml:",chardata"`
+	Xmlns   string   `xml:"xmlns,attr"`
+	Name    string   `xml:"name"`
+	Version string   `xml:"version"`
+	Os      string   `xml:"os,omitempty"`
+}
+
+/* vim: set ft=go noet ai ts=4 sw=4 sts=4: */

internal/jabber/util.go

@@ -0,0 +1,435 @@
+package jabber
+
+import (
+	"encoding/json"
+	"fmt"
+	"math/rand"
+	"reflect"
+	"slices"
+	"strings"
+	"time"
+
+	"github.com/eleksir/go-xmpp"
+	log "github.com/sirupsen/logrus"
+)
+
+// RandomPhrase выдаёт одну рандомную фразу из даденного списка фраз.
+func RandomPhrase(list []string) string {
+	phrase := ""
+
+	if listLen := len(list); listLen > 0 {
+		phrase = list[rand.Intn(listLen)]
+	}
+
+	return phrase
+}
+
+// InterfaceToStringSlice превращает данный интерфейс в слайс строк.
+// Если может, конечно :) .
+func InterfaceToStringSlice(iface interface{}) []string {
+	var mySlice []string
+
+	// А теперь мы начинаем дурдом, нам надо превратить ёбанный interface{} в []string
+	// Поскольку interface{} может быть чем угодно, перестрахуемся
+	if reflect.TypeOf(iface).Kind() == reflect.Slice {
+		shit := reflect.ValueOf(iface)
+
+		for i := 0; i < shit.Len(); i++ {
+			mySlice = append(mySlice, fmt.Sprint(shit.Index(i)))
+		}
+	}
+
+	return mySlice
+}
+
+// GetRealJIDfromNick достаёт из запомненных presence-ов по даденному nick-у real jid с resource-ом. Nick должен
+// содержать имя конфы, откуда участник.
+func (j *Jabber) GetRealJIDfromNick(fullNick string) string {
+	var p xmpp.Presence
+
+	room := (strings.SplitN(fullNick, "/", 2))[0]
+
+	// Достанем presence участника
+	presenceJSONInterface, present := j.RoomPresences.Get(room)
+
+	// Никого нет дома
+	if !present {
+		return ""
+	}
+
+	presenceJSONStrings := InterfaceToStringSlice(presenceJSONInterface)
+
+	for _, presepresenceJSONString := range presenceJSONStrings {
+		_ = json.Unmarshal([]byte(presepresenceJSONString), &p)
+
+		if p.From == fullNick {
+			return p.JID
+		}
+	}
+
+	return ""
+}
+
+// GetBotNickFromRoomConfig достаёт из настроек комнаты короткий ник бота, либо берёт значение из конфига, если ник в
+// настройках комнаты не задан. Короткий ник не содержит название комнаты.
+func (j *Jabber) GetBotNickFromRoomConfig(room string) string {
+	for _, roomStruct := range j.C.Jabber.Channels {
+		if roomStruct.Name == room {
+			return roomStruct.Nick
+		}
+	}
+
+	return j.C.Jabber.Nick
+}
+
+// RotateStatus периодически изменяет статус бота в MUC-е согласно настройкам из кофига.
+func (j *Jabber) RotateStatus(room string) error {
+	for {
+		// TODO: Переделать на ticker-ы
+		totalSleepTime := time.Duration(j.C.Jabber.RuntimeStatus.RotationTime) * time.Second
+		totalSleepTime += time.Duration(j.C.Jabber.RuntimeStatus.RotationSplayTime) * time.Second
+
+		for {
+			status := RandomPhrase(j.C.Jabber.RuntimeStatus.Text)
+			log.Debugf("Set status for MUC: %s to: %s", room, status)
+
+			var p xmpp.Presence
+
+			if room != "" {
+				p = xmpp.Presence{ //nolint:exhaustruct
+					To:     room,
+					Status: status,
+				}
+			} else {
+				p = xmpp.Presence{ //nolint:exhaustruct
+					Status: status,
+				}
+			}
+
+			if _, err := j.Talk.SendPresence(p); err != nil {
+				return fmt.Errorf("unable to send presence to MUC %s: %w", room, err)
+			}
+
+			// Если мы не хотим ротировать, то цикл нам тут не нужен, просто выходим.
+			if j.C.Jabber.RuntimeStatus.RotationTime == 0 {
+				return nil
+			}
+
+			time.Sleep(totalSleepTime)
+		}
+	}
+}
+
+// JoinMuc джойнится к конференциям/каналам/комнатам в джаббере.
+func (j *Jabber) JoinMuc(room string) error {
+	log.Debugf("Sending disco#info from %s to %s", j.Talk.JID(), room)
+
+	if _, err := j.Talk.DiscoverInfo(j.Talk.JID(), room); err != nil {
+		return fmt.Errorf("unable to send disco#info to MUC %s: %w", room, err)
+	}
+
+	// Ждём, пока muc нам вернёт список фичей.
+	for i := 0; i < (20 * int(j.C.Jabber.ConnectionTimeout)); i++ {
+		var (
+			myRoom    interface{}
+			supported bool
+			exist     bool
+		)
+
+		time.Sleep(50 * time.Millisecond)
+
+		if myRoom, exist = j.MucCapsList.Get(room); !exist {
+			// Пока не задискаверилась.
+			continue
+		}
+
+		if supported, exist = myRoom.(map[string]bool)["muc_unsecured"]; exist {
+			if supported {
+				break
+			}
+
+			log.Infof("Unable to join to password-protected room. Don't know how to enter passwords :)")
+
+			return nil
+		}
+	}
+
+	// Заходим в конфу, наконец-то
+	if _, err := j.Talk.JoinMUCNoHistory(room, j.GetBotNickFromRoomConfig(room)); err != nil {
+		return fmt.Errorf("unable to join to MUC: %s, %w", room, err)
+	}
+
+	log.Infof("Joining to MUC: %s", room)
+
+	// Ждём, когда прилетит presence из комнаты, тогда мы точно знаем, что мы вошли.
+	entered := false
+
+	for i := 0; i < (20 * int(j.C.Jabber.ConnectionTimeout)); i++ {
+		time.Sleep(50 * time.Millisecond)
+
+		if slices.Contains(j.RoomsConnected, room) {
+			entered = true
+
+			break
+		}
+	}
+
+	if !entered {
+		log.Errorf(
+			"Unable to enter to MUC %s, join timeout after %d seconds (server does not return my presence for this room)",
+			room,
+			20*int(j.C.Jabber.ConnectionTimeout)+1,
+		)
+
+		return nil
+	}
+
+	// Вот теперь точно можно слать статус.
+	log.Infof("Joined to MUC: %s", room)
+
+	j.GTomb.Go(func() error { return j.RotateStatus(room) })
+
+	// Время проверить участников на предмет злобности
+	namesInterface, present := j.RoomPresences.Get(room)
+
+	// Если room есть в списке presence-ов, то фигачим. room там должен быть, просто обязан.
+	if present {
+		for _, name := range InterfaceToStringSlice(namesInterface) {
+			var v xmpp.Presence
+
+			_ = json.Unmarshal([]byte(name), &v)
+			log.Infof("Fake presence forged for %s just for on-enter check", name)
+			// Оно там внутри всё само обработает, если вдруг возникнет wire error, то зарекконетится.
+			_ = j.BunyPresense(v)
+		}
+	}
+
+	return nil
+}
+
+// EstablishConnection устанавливает соединение с jabber-сервером.
+func (j *Jabber) EstablishConnection() error {
+	var err error
+
+	if j.Connecting && !j.IsConnected {
+		return nil
+	}
+
+	// Проставляем глобальные переменные.
+	j.Connecting = true
+	j.IsConnected = false
+	j.RoomsConnected = make([]string, 0)
+
+	log.Debugf("Establishing connection to %s", j.Options.Host)
+	j.Talk, err = j.Options.NewClient()
+
+	if err != nil {
+		return fmt.Errorf("unable to connect to %s: %w", j.Options.Host, err)
+	}
+
+	// По идее keepalive должен же проходить только, если мы уже на сервере, так?
+	if _, err := j.Talk.SendKeepAlive(); err != nil {
+		return fmt.Errorf("try to send initial KeepAlive, got error: %w", err)
+	}
+
+	log.Info("Connected")
+
+	// Джойнимся к чятикам, но делаем это в фоне, чтобы не блочиться на ошибках, например, если бота забанили
+	for _, roomStruct := range j.C.Jabber.Channels {
+		room := roomStruct.Name
+
+		j.GTomb.Go(func() error { return j.JoinMuc(room) })
+	}
+
+	j.GTomb.Go(func() error { return j.RotateStatus("") })
+
+	j.LastActivity = time.Now().Unix()
+	j.Connecting = false
+	j.IsConnected = true
+
+	log.Debugf("Sending disco#info to %s", j.C.Jabber.Server)
+
+	_, err = j.Talk.DiscoverInfo(j.Talk.JID(), j.C.Jabber.Server)
+
+	if err != nil {
+		return fmt.Errorf("unable to send disco#info to jabber server: %w", err)
+	}
+
+	return nil
+}
+
+// ProbeServerLiveness проверяет живость соединения с сервером. Для многих серверов обязательная штука, без которой
+// они выкидывают (дисконнектят) клиента через некоторое время неактивности.
+func (j *Jabber) ProbeServerLiveness() error { //nolint:gocognit
+	for {
+		for {
+			if j.Shutdown {
+				return nil
+			}
+
+			sleepTime := time.Duration(j.C.Jabber.ServerPingDelay) * 1000 * time.Millisecond
+			sleepTime += time.Duration(rand.Int63n(1000*j.C.Jabber.PingSplayDelay)) * time.Millisecond
+			time.Sleep(sleepTime)
+
+			if !j.IsConnected {
+				continue
+			}
+
+			// Пингуем, только если не было никакой активности в течение > config.Jabber.ServerPingDelay,
+			// в худшем случе это будет ~ (config.Jabber.PingSplayDelay * 2) + config.Jabber.PingSplayDelay
+			// if (time.Now().Unix() - lastServerActivity) < (config.Jabber.ServerPingDelay + config.Jabber.PingSplayDelay) {
+			//	continue
+			// }
+
+			if j.ServerCapsQueried { // Сервер ответил на disco#info
+				var (
+					value interface{}
+					exist bool
+				)
+
+				value, exist = j.ServerCapsList.Get("urn:xmpp:ping")
+
+				switch {
+				// Сервер анонсировал, что умеет в c2s пинги
+				case exist && value.(bool):
+					// Таймаут c2s пинга. Возьмём сумму задержки между пингами, добавим таймаут коннекта и добавим
+					// максимальную корректировку разброса.
+					txTimeout := j.C.Jabber.ServerPingDelay + j.C.Jabber.ConnectionTimeout
+					txTimeout += j.C.Jabber.PingSplayDelay
+					rxTimeout := txTimeout
+
+					rxTimeAgo := time.Now().Unix() - j.ServerPingTimestampRx
+
+					if j.ServerPingTimestampTx > 0 { // Первая пуля от нас ушла...
+						switch {
+						// Давненько мы не получали понгов от сервера, вероятно, соединение с сервером утеряно?
+						case rxTimeAgo > (rxTimeout * 2):
+							err := fmt.Errorf( //nolint:goerr113
+								"stall connection detected. No c2s pong for %d seconds",
+								rxTimeAgo,
+							)
+
+							return err
+
+						// По-умолчанию, мы отправляем c2s пинг
+						default:
+							log.Debugf("Sending c2s ping from %s to %s", j.Talk.JID(), j.C.Jabber.Server)
+
+							if err := j.Talk.PingC2S(j.Talk.JID(), j.C.Jabber.Server); err != nil {
+								return err
+							}
+
+							j.ServerPingTimestampTx = time.Now().Unix()
+						}
+					} else { // Первая пуля пока не вылетела, отправляем
+						log.Debugf("Sending first c2s ping from %s to %s", j.Talk.JID(), j.C.Jabber.Server)
+
+						if err := j.Talk.PingC2S(j.Talk.JID(), j.C.Jabber.Server); err != nil {
+							return err
+						}
+
+						j.ServerPingTimestampTx = time.Now().Unix()
+					}
+
+				// Сервер не анонсировал, что умеет в c2s пинги
+				default:
+					log.Debug("Sending keepalive whitespace ping")
+
+					if _, err := j.Talk.SendKeepAlive(); err != nil {
+						return err
+					}
+				}
+			} else { // Сервер не ответил на disco#info
+				log.Debug("Sending keepalive whitespace ping")
+
+				if _, err := j.Talk.SendKeepAlive(); err != nil {
+					return err
+				}
+			}
+		}
+	}
+}
+
+// ProbeMUCLiveness Пингует MUC-и, нужно для проверки, что клиент ещё находится в MUC-е.
+func (j *Jabber) ProbeMUCLiveness() { //nolint:gocognit
+	var err error
+
+	for {
+		for _, room := range j.RoomsConnected {
+			var (
+				exist          bool
+				lastActivityTS interface{}
+			)
+
+			// Если записи про комнату нету, то пинговать её бессмысленно.
+			if lastActivityTS, exist = j.LastMucActivity.Get(room); !exist {
+				continue
+			}
+
+			// Если время последней активности в чятике не превысило
+			// j.C.Jabber.ServerPingDelay + j.C.Jabber.PingSplayDelay, ничего не пингуем.
+			if (time.Now().Unix() - lastActivityTS.(int64)) < (j.C.Jabber.ServerPingDelay + j.C.Jabber.PingSplayDelay) {
+				continue
+			}
+
+			/* Пинг MUC-а по сценарию без серверной оптимизации мы реализовывать не будем. Это как-то не надёжно.
+				j.GTomb.Go(
+					func() {
+						// Небольшая рандомная задержка перед пингом комнаты
+						sleepTime := time.Duration(rand.Int63n(1000*j.C.Jabber.PingSplayDelay)) * time.Millisecond //nolint:gosec
+						time.Sleep(sleepTime)
+
+						if e := j.Talk.PingS2S(talk.JID(), room+"/"+j.GetBotNickFromRoomConfig(room)); e != nil {
+							err = e
+							return err
+						}
+
+						return nil
+					},
+				)
+
+				if err != nil {
+					break
+				}
+			)
+			*/
+			var roomMap interface{}
+
+			roomMap, exist = j.MucCapsList.Get(room)
+
+			// Пинги комнаты проводим, только если она записана, как прошедшая disco#info и поддерживающая
+			// Server Optimization.
+			if exist && roomMap.(map[string]bool)["http://jabber.org/protocol/muc#self-ping-optimization"] {
+				j.GTomb.Go(
+					func() error {
+						// Небольшая рандомная задержка перед пингом комнаты.
+						sleepTime := time.Duration(rand.Int63n(1000*j.C.Jabber.PingSplayDelay)) * time.Millisecond
+						time.Sleep(sleepTime)
+
+						log.Debugf("Sending MUC ping from %s to %s", j.Talk.JID(), room)
+
+						if e := j.Talk.PingS2S(j.Talk.JID(), room); e != nil {
+							err = fmt.Errorf("unable to ping MUC %s: %w", room, e)
+
+							return err
+						}
+
+						return nil
+					},
+				)
+			}
+
+			if err != nil {
+				break
+			}
+		}
+
+		if err != nil {
+			return
+		}
+
+		time.Sleep(time.Duration(j.C.Jabber.MucPingDelay) * time.Second)
+	}
+}
+
+/* vim: set ft=go noet ai ts=4 sw=4 sts=4: */

lib.go

@@ -1,825 +0,0 @@
-package main
-
-import (
-	"encoding/json"
-	"fmt"
-	"math/rand"
-	"os"
-	"path/filepath"
-	"syscall"
-	"time"
-
-	"github.com/eleksir/go-xmpp"
-	"github.com/hjson/hjson-go"
-	log "github.com/sirupsen/logrus"
-	"golang.org/x/exp/slices"
-)
-
-// sigHandler Хэндлер сигналов закрывает все бд, все сетевые соединения и сваливает из приложения.
-func sigHandler() {
-	log.Debug("Installing signal handler")
-
-	for s := range sigChan {
-		switch s {
-		case syscall.SIGINT:
-			log.Infoln("Got SIGINT, quitting")
-		case syscall.SIGTERM:
-			log.Infoln("Got SIGTERM, quitting")
-		case syscall.SIGQUIT:
-			log.Infoln("Got SIGQUIT, quitting")
-
-		// Заходим на новую итерацию, если у нас "неинтересный" сигнал.
-		default:
-			continue
-		}
-
-		// Чтобы не срать в логи ошибками, проставим shutdown state приложения в true.
-		shutdown = true
-
-		if isConnected && !shutdown {
-			log.Debug("Try to set our presence to Unavailable and status to Offline")
-
-			// Вот тут понадобится коллекция известных пользователей, чтобы им разослать presence, что бот свалил в offline
-			// Пока за неимением лучшего сообщим об этом самим себе.
-			for _, room := range roomsConnected {
-				if _, err := talk.SendPresence(
-					xmpp.Presence{ //nolint:exhaustruct
-						To:     room,
-						Status: "Offline",
-						Type:   "unavailable",
-					},
-				); err != nil {
-					log.Infof("Unable to send presence to jabber server: %s", err)
-				}
-			}
-
-			// И закрываем соединение.
-			log.Debugf("Closing connection to jabber server")
-
-			if err := talk.Close(); err != nil {
-				log.Infof("Unable to close connection to jabber server: %s", err)
-			}
-		}
-
-		os.Exit(0)
-	}
-}
-
-// readConfig читает и валидирует конфиг, а также выставляет некоторые default-ы, если значений для параметров в конфиге
-// нет.
-func readConfig() { //nolint:gocognit,gocyclo
-	configLoaded := false
-	executablePath, err := os.Executable()
-
-	if err != nil {
-		log.Errorf("Unable to get current executable path: %s", err)
-
-		os.Exit(1)
-	}
-
-	configJSONPath := fmt.Sprintf("%s/data/config.json", filepath.Dir(executablePath))
-
-	locations := []string{
-		"~/.buny-jabber-bot.json",
-		"~/buny-jabber-bot.json",
-		"/etc/buny-jabber-bot.json",
-		configJSONPath,
-	}
-
-	for _, location := range locations {
-		fileInfo, err := os.Stat(location)
-
-		// Предполагаем, что файла либо нет, либо мы не можем его прочитать, второе надо бы логгировать, но пока забьём.
-		if err != nil {
-			continue
-		}
-
-		// Конфиг-файл длинноват для конфига, попробуем следующего кандидата.
-		if fileInfo.Size() > 65535 {
-			log.Warnf("Config file %s is too long for config, skipping", location)
-
-			continue
-		}
-
-		buf, err := os.ReadFile(location)
-
-		// Не удалось прочитать, попробуем следующего кандидата.
-		if err != nil {
-			log.Warnf("Skip reading config file %s: %s", location, err)
-
-			continue
-		}
-
-		// Исходя из документации, hjson какбы умеет парсить "кривой" json, но парсит его в map-ку.
-		// Интереснее на выходе получить структурку: то есть мы вначале конфиг преобразуем в map-ку, затем эту map-ку
-		// сериализуем в json, а потом json превращаем в структурку. Не очень эффективно, но он и нечасто требуется.
-		var (
-			sampleConfig myConfig
-			tmp          map[string]interface{}
-		)
-
-		err = hjson.Unmarshal(buf, &tmp)
-
-		// Не удалось распарсить - попробуем следующего кандидата.
-		if err != nil {
-			log.Warnf("Skip parsing config file %s: %s", location, err)
-
-			continue
-		}
-
-		tmpJSON, err := json.Marshal(tmp)
-
-		// Не удалось преобразовать map-ку в json
-		if err != nil {
-			log.Warnf("Skip parsing config file %s: %s", location, err)
-
-			continue
-		}
-
-		if err := json.Unmarshal(tmpJSON, &sampleConfig); err != nil {
-			log.Warnf("Skip parsing config file %s: %s", location, err)
-
-			continue
-		}
-
-		// Значения для Jabber-клиента
-		if sampleConfig.Jabber.Server == "" {
-			log.Error("Jabber server is not defined in config, using localhost")
-			sampleConfig.Jabber.Server = "localhost" //nolint:wsl
-		}
-
-		if sampleConfig.Jabber.Port == 0 {
-			sampleConfig.Jabber.Port = 5222
-
-			if sampleConfig.Jabber.Ssl {
-				if !sampleConfig.Jabber.StartTLS {
-					sampleConfig.Jabber.Port = 5223
-
-					log.Info("Jabber port is not defined in config, using 5223")
-				} else {
-					log.Info("Jabber port is not defined in config, using 5222")
-				}
-			}
-		}
-
-		if !sampleConfig.Jabber.Ssl {
-			sampleConfig.Jabber.StartTLS = false
-		}
-
-		if !sampleConfig.Jabber.Ssl || !sampleConfig.Jabber.StartTLS {
-			sampleConfig.Jabber.SslVerify = false
-		}
-
-		// sampleConfig.Jabber.InsecureAllowUnencryptedAuth = false, если не задан
-
-		if sampleConfig.Jabber.ConnectionTimeout == 0 {
-			sampleConfig.Jabber.ConnectionTimeout = 10
-
-			log.Info("Jabber server connection_timeout not defined in config, using 10 seconds")
-		}
-
-		if sampleConfig.Jabber.ReconnectDelay == 0 {
-			sampleConfig.Jabber.ReconnectDelay = 3
-
-			log.Info("Jabber server reconnect_delay not defined in config, using 3 seconds")
-		}
-
-		if sampleConfig.Jabber.ServerPingDelay == 0 {
-			sampleConfig.Jabber.ServerPingDelay = 60
-
-			log.Info("Jabber server_ping_delay not defined in config, using 60 seconds")
-		}
-
-		if sampleConfig.Jabber.MucPingDelay == 0 {
-			sampleConfig.Jabber.MucPingDelay = 900
-
-			log.Info("Jabber muc_ping_delay not defined in config, using 900 seconds")
-		}
-
-		if sampleConfig.Jabber.MucRejoinDelay == 0 {
-			sampleConfig.Jabber.MucRejoinDelay = 3
-
-			log.Info("Jabber muc_rejoin_delay not defined in config, using 3 seconds")
-		}
-
-		if sampleConfig.Jabber.PingSplayDelay == 0 {
-			sampleConfig.Jabber.PingSplayDelay = 3
-
-			log.Info("Jabber ping_splay_delay not defined in config, using 3 seconds")
-		}
-
-		if sampleConfig.Jabber.Nick == "" {
-			log.Errorf("Jabber nick is not defined in config, quitting")
-			os.Exit(1)
-		}
-
-		if sampleConfig.Jabber.Resource == "" {
-			sampleConfig.Jabber.Resource = "buny bot"
-
-			log.Info("Jabber resource not defined in config, using buny bot")
-		}
-
-		if sampleConfig.Jabber.User == "" {
-			sampleConfig.Jabber.User = fmt.Sprintf("%s@%s", sampleConfig.Jabber.Nick, sampleConfig.Jabber.Server)
-
-			log.Infof("Jabber user not defined in config, guessing, it can be %s", sampleConfig.Jabber.User)
-		}
-
-		// Если sampleConfig.Jabber.Password не задан, то авторизации не будет
-		// Если sampleConfig.Jabber.Sasl не задан, то авторизация происходит через NickServ
-
-		// Если sampleConfig.Jabber.BanPhrasesEnable не задан, то он false
-
-		// Если список фраз, с которыми банят пустой, то вносим в него одну позицию с пустой строкой
-		if len(sampleConfig.Jabber.BanPhrases) == 0 {
-			sampleConfig.Jabber.BanPhrases[0] = ""
-		}
-
-		// Если список фраз с которыми стартует бот пустой, вносим в него 1 запись с пустой строкой
-		if len(sampleConfig.Jabber.StartupStatus) == 0 {
-			sampleConfig.Jabber.StartupStatus[0] = ""
-		}
-
-		// Если список статусов, с которыми работает бот пустой, вносим в него 1 запись с пустой строкой
-		if len(sampleConfig.Jabber.RuntimeStatus.Text) == 0 {
-			sampleConfig.Jabber.RuntimeStatus.Text[0] = ""
-		}
-
-		// Если sampleConfig.Jabber.RuntimeStatus.RotationTime не задан, то он равен 0
-		// Если sampleConfig.Jabber.RuntimeStatus.RotationSplayTime не задан, то он равен 0
-
-		// Нам бот нужен в каких-то чат-румах, а не "просто так"
-		if len(sampleConfig.Jabber.Channels) < 1 {
-			log.Errorf("No jabber channels/rooms defined in config, quitting")
-			os.Exit(1)
-		}
-
-		if sampleConfig.Loglevel == "" {
-			sampleConfig.Loglevel = "info"
-
-			log.Info("loglevel not defined in config, using info")
-		}
-
-		// sampleConfig.Log = "" if not set
-
-		config = sampleConfig
-		configLoaded = true
-		log.Infof("Using %s as config file", location) //nolint:wsl
-
-		break
-	}
-
-	if !configLoaded {
-		log.Error("Config was not loaded! Refusing to start.")
-		os.Exit(1)
-	}
-}
-
-// readWhitelist читает и валидирует белые списки пользователей.
-func readWhitelist() {
-	whitelistLoaded := false
-	executablePath, err := os.Executable()
-
-	if err != nil {
-		log.Errorf("Unable to get current executable path: %s", err)
-		os.Exit(1)
-	}
-
-	whitelistJSONPath := fmt.Sprintf("%s/data/whitelist.json", filepath.Dir(executablePath))
-
-	locations := []string{
-		"~/.buny-jabber-bot-whitelist.json",
-		"~/buny-jabber-bot-whitelist.json",
-		"/etc/buny-jabber-bot-whitelist.json",
-		whitelistJSONPath,
-	}
-
-	for _, location := range locations {
-		fileInfo, err := os.Stat(location)
-
-		// Предполагаем, что файла либо нет, либо мы не можем его прочитать, второе надо бы логгировать, но пока забьём
-		if err != nil {
-			continue
-		}
-
-		// Файл белого списка длинноват для белого списка, попробуем следующего кандидата
-		if fileInfo.Size() > 2097152 {
-			log.Warnf("Whitelist file %s is too long for whitelist, skipping", location)
-
-			continue
-		}
-
-		buf, err := os.ReadFile(location)
-
-		// Не удалось прочитать, попробуем следующего кандидата
-		if err != nil {
-			log.Warnf("Skip reading whitelist file %s: %s", location, err)
-
-			continue
-		}
-
-		// Исходя из документации, hjson какбы умеет парсить "кривой" json, но парсит его в map-ку.
-		// Интереснее на выходе получить структурку: то есть мы вначале конфиг преобразуем в map-ку, затем эту map-ку
-		// сериализуем в json, а потом json превращаем в структурку. Не очень эффективно, но он и нечасто требуется.
-		var (
-			sampleWhitelist myWhiteList
-			tmp             map[string]interface{}
-		)
-
-		err = hjson.Unmarshal(buf, &tmp)
-
-		// Не удалось распарсить - попробуем следующего кандидата
-		if err != nil {
-			log.Warnf("Skip parsing whitelist file %s: %s", location, err)
-
-			continue
-		}
-
-		tmpJSON, err := json.Marshal(tmp)
-
-		// Не удалось преобразовать map-ку в json
-		if err != nil {
-			log.Warnf("Skip parsing whitelist file %s: %s", location, err)
-
-			continue
-		}
-
-		if err := json.Unmarshal(tmpJSON, &sampleWhitelist); err != nil {
-			log.Warnf("Skip parsing whitelist file %s: %s", location, err)
-
-			continue
-		}
-
-		whiteList = sampleWhitelist
-		whitelistLoaded = true
-
-		log.Infof("Using %s as whiteList file", location)
-
-		break
-	}
-
-	if !whitelistLoaded {
-		log.Error("Whitelist was not loaded! Refusing to start.")
-
-		os.Exit(1)
-	}
-}
-
-// readBlacklist читает и валидирует чёрные списки пользователей.
-func readBlacklist() {
-	blacklistLoaded := false
-	executablePath, err := os.Executable()
-
-	if err != nil {
-		log.Errorf("Unable to get current executable path: %s", err)
-
-		os.Exit(1)
-	}
-
-	whitelistJSONPath := fmt.Sprintf("%s/data/blacklist.json", filepath.Dir(executablePath))
-
-	locations := []string{
-		"~/.buny-jabber-bot-blacklist.json",
-		"~/buny-jabber-bot-blacklist.json",
-		"/etc/buny-jabber-bot-blacklist.json",
-		whitelistJSONPath,
-	}
-
-	for _, location := range locations {
-		fileInfo, err := os.Stat(location)
-
-		// Предполагаем, что файла либо нет, либо мы не можем его прочитать, второе надо бы логгировать, но пока забьём
-		if err != nil {
-			continue
-		}
-
-		// Файл чёрного списка длинноват для чёрного списка, попробуем следующего кандидата
-		if fileInfo.Size() > 16777216 {
-			log.Warnf("Blacklist file %s is too long for blacklist, skipping", location)
-
-			continue
-		}
-
-		buf, err := os.ReadFile(location)
-
-		// Не удалось прочитать, попробуем следующего кандидата
-		if err != nil {
-			log.Warnf("Skip reading blacklist file %s: %s", location, err)
-
-			continue
-		}
-
-		// Исходя из документации, hjson какбы умеет парсить "кривой" json, но парсит его в map-ку.
-		// Интереснее на выходе получить структурку: то есть мы вначале конфиг преобразуем в map-ку, затем эту map-ку
-		// сериализуем в json, а потом json превращаем в структурку. Не очень эффективно, но он и нечасто требуется.
-		var (
-			sampleBlacklist myBlackList
-			tmp             map[string]interface{}
-		)
-
-		err = hjson.Unmarshal(buf, &tmp)
-
-		// Не удалось распарсить - попробуем следующего кандидата
-		if err != nil {
-			log.Warnf("Skip parsing blacklist file %s: %s", location, err)
-
-			continue
-		}
-
-		tmpJSON, err := json.Marshal(tmp)
-
-		// Не удалось преобразовать map-ку в json
-		if err != nil {
-			log.Warnf("Skip parsing blacklist file %s: %s", location, err)
-
-			continue
-		}
-
-		if err := json.Unmarshal(tmpJSON, &sampleBlacklist); err != nil {
-			log.Warnf("Skip parsing whitelist file %s: %s", location, err)
-
-			continue
-		}
-
-		blackList = sampleBlacklist
-		blacklistLoaded = true
-
-		log.Infof("Using %s as blacklist file", location)
-
-		break
-	}
-
-	if !blacklistLoaded {
-		log.Error("Blacklist was not loaded! Refusing to start.")
-
-		os.Exit(1)
-	}
-}
-
-// establishConnection устанавливает соединение с jabber-сервером.
-func establishConnection() {
-	var err error
-
-	if connecting && !isConnected {
-		return
-	}
-
-	// Проставляем глобальные переменные.
-	connecting = true
-	isConnected = false
-	roomsConnected = make([]string, 0)
-
-	talk, err = options.NewClient()
-
-	if err != nil {
-		gTomb.Kill(err)
-
-		return
-	}
-
-	// По идее keepalive должен же проходить только, если мы уже на сервере, так?
-	if _, err := talk.SendKeepAlive(); err != nil {
-		log.Errorf("Try to send initial KeepAlive, got error: %s", err)
-
-		gTomb.Kill(err)
-	}
-
-	log.Info("Connected")
-
-	// Джойнимся к чятикам, но делаем это в фоне, чтобы не блочиться на ошибках, например, если бота забанили
-	for _, room := range config.Jabber.Channels {
-		go joinMuc(room)
-	}
-
-	go RotateStatus("")
-
-	lastActivity = time.Now().Unix()
-	connecting = false
-	isConnected = true
-
-	log.Debugf("Sending disco#info to %s", config.Jabber.Server)
-
-	_, err = talk.DiscoverInfo(talk.JID(), config.Jabber.Server)
-
-	if err != nil {
-		log.Infof("Unable to send disco#info to jabber server: %s", err)
-		gTomb.Kill(err)
-
-		return
-	}
-}
-
-// joinMu джойнится к конференциям/каналам/комнатам в джаббере.
-func joinMuc(room string) {
-	log.Debugf("Sending disco#info from %s to %s", talk.JID(), room)
-
-	if _, err := talk.DiscoverInfo(talk.JID(), room); err != nil {
-		log.Infof("Unable to send disco#info to MUC %s: %s", room, err)
-
-		gTomb.Kill(err)
-	}
-
-	// Ждём, пока muc нам вернёт список фичей.
-	for i := 0; i < (20 * int(config.Jabber.ConnectionTimeout)); i++ {
-		var (
-			myRoom    interface{}
-			supported bool
-			exist     bool
-		)
-
-		time.Sleep(50 * time.Millisecond)
-
-		if myRoom, exist = mucCapsList.Get(room); !exist {
-			// Пока не задискаверилась
-			continue
-		}
-
-		if supported, exist = myRoom.(map[string]bool)["muc_unsecured"]; exist {
-			if supported {
-				break
-			}
-
-			log.Infof("Unable to join to password-protected room. Don't know how to enter passwords :)")
-
-			return
-		}
-	}
-
-	if _, err := talk.JoinMUCNoHistory(room, config.Jabber.Nick); err != nil {
-		log.Errorf("Unable to join to MUC: %s", room)
-
-		gTomb.Kill(err)
-	}
-
-	log.Infof("Joining to MUC: %s", room)
-
-	// Ждём, когда прилетит presence из комнаты, тогда мы точно знаем, что мы вошли.
-	entered := false
-
-	for i := 0; i < (20 * int(config.Jabber.ConnectionTimeout)); i++ {
-		time.Sleep(50 * time.Millisecond)
-
-		if slices.Contains(roomsConnected, room) {
-			entered = true
-
-			break
-		}
-	}
-
-	if !entered {
-		log.Errorf(
-			"Unable to enter to MUC %s, join timeout after %d seconds (server does not return my presence for this room)",
-			room,
-			20*int(config.Jabber.ConnectionTimeout)+1,
-		)
-
-		return
-	}
-
-	// Вот теперь точно можно слать статус.
-	log.Infof("Joined to MUC: %s", room)
-
-	go RotateStatus(room)
-}
-
-// probeServerLiveness проверяет живость соединения с сервером. Для многих серверов обязательная штука, без которой
-// они выкидывают клиента через некоторое время неактивности.
-func probeServerLiveness() { //nolint:gocognit
-	defer gTomb.Done()
-
-	for {
-		select {
-		case <-gTomb.Dying():
-			return
-
-		default:
-			for {
-				if shutdown {
-					return
-				}
-
-				sleepTime := time.Duration(config.Jabber.ServerPingDelay) * 1000 * time.Millisecond
-				sleepTime += time.Duration(rand.Int63n(1000*config.Jabber.PingSplayDelay)) * time.Millisecond //nolint:gosec
-				time.Sleep(sleepTime)
-
-				if !isConnected {
-					continue
-				}
-
-				// Пингуем, только если не было никакой активности в течение > config.Jabber.ServerPingDelay,
-				// в худшем случе это будет ~ (config.Jabber.PingSplayDelay * 2) + config.Jabber.PingSplayDelay
-				// if (time.Now().Unix() - lastServerActivity) < (config.Jabber.ServerPingDelay + config.Jabber.PingSplayDelay) {
-				//	continue
-				// }
-
-				if serverCapsQueried { // Сервер ответил на disco#info
-					var (
-						value interface{}
-						exist bool
-					)
-
-					value, exist = serverCapsList.Get("urn:xmpp:ping")
-
-					switch {
-					// Сервер анонсировал, что умеет в c2s пинги
-					case exist && value.(bool):
-						// Таймаут c2s пинга. Возьмём сумму задержки между пингами, добавим таймаут коннекта и добавим
-						// максимальную корректировку разброса.
-						txTimeout := config.Jabber.ServerPingDelay + config.Jabber.ConnectionTimeout
-						txTimeout += config.Jabber.PingSplayDelay
-						rxTimeout := txTimeout
-
-						rxTimeAgo := time.Now().Unix() - serverPingTimestampRx
-
-						if serverPingTimestampTx > 0 { // Первая пуля от нас ушла...
-							switch {
-							// Давненько мы не получали понгов от сервера, вероятно, соединение с сервером утеряно?
-							case rxTimeAgo > (rxTimeout * 2):
-								err := fmt.Errorf( //nolint:goerr113
-									"stall connection detected. No c2s pong for %d seconds",
-									rxTimeAgo,
-								)
-
-								gTomb.Kill(err)
-
-								continue
-
-							// По-умолчанию, мы отправляем c2s пинг
-							default:
-								log.Debugf("Sending c2s ping from %s to %s", talk.JID(), config.Jabber.Server)
-
-								if err := talk.PingC2S(talk.JID(), config.Jabber.Server); err != nil {
-									gTomb.Kill(err)
-
-									continue
-								}
-
-								serverPingTimestampTx = time.Now().Unix()
-							}
-						} else { // Первая пуля пока не вылетела, отправляем
-							log.Debugf("Sending first c2s ping from %s to %s", talk.JID(), config.Jabber.Server)
-
-							if err := talk.PingC2S(talk.JID(), config.Jabber.Server); err != nil {
-								gTomb.Kill(err)
-
-								continue
-							}
-
-							serverPingTimestampTx = time.Now().Unix()
-						}
-
-					// Сервер не анонсировал, что умеет в c2s пинги
-					default:
-						log.Debug("Sending keepalive whitespace ping")
-
-						if _, err := talk.SendKeepAlive(); err != nil {
-							gTomb.Kill(err)
-
-							continue
-						}
-					}
-				} else { // Сервер не ответил на disco#info
-					log.Debug("Sending keepalive whitespace ping")
-
-					if _, err := talk.SendKeepAlive(); err != nil {
-						gTomb.Kill(err)
-
-						continue
-					}
-				}
-			}
-		}
-	}
-}
-
-// probeMUCLiveness Пингует MUC-и, нужно для проверки, что клиент ещё находится в MUC-е.
-func probeMUCLiveness() { //nolint:gocognit
-	defer gTomb.Done()
-
-	for {
-		select {
-		case <-gTomb.Dying():
-			return
-
-		default:
-			for {
-				for _, room := range roomsConnected {
-					var (
-						exist          bool
-						lastActivityTS interface{}
-					)
-
-					// Если записи про комнату нету, то пинговать её бессмысленно.
-					if lastActivityTS, exist = lastMucActivity.Get(room); !exist {
-						continue
-					}
-
-					// Если время последней активности в чятике не превысило
-					// config.Jabber.ServerPingDelay + config.Jabber.PingSplayDelay, ничего не пингуем.
-					if (time.Now().Unix() - lastActivityTS.(int64)) < (config.Jabber.ServerPingDelay + config.Jabber.PingSplayDelay) {
-						continue
-					}
-
-					/* Пинг MUC-а по сценарию без серверной оптимизации мы реализовывать не будем. Это как-то не надёжно.
-					go func(room string) {
-						// Небольшая рандомная задержка перед пингом комнаты
-						sleepTime := time.Duration(rand.Int63n(1000*config.Jabber.PingSplayDelay)) * time.Millisecond //nolint:gosec
-						time.Sleep(sleepTime)
-
-						if err := talk.PingS2S(talk.JID(), room+"/"+config.Jabber.Nick); err != nil {
-							gTomb.Kill(err)
-							continue
-						}
-					}(room)
-					*/
-
-					var roomMap interface{}
-
-					roomMap, exist = mucCapsList.Get(room)
-
-					// Пинги комнаты проводим, только если она записана, как прошедшая disco#info и поддерживающая
-					// Server Optimization.
-					if exist && roomMap.(map[string]bool)["http://jabber.org/protocol/muc#self-ping-optimization"] {
-						go func(room string) {
-							// Небольшая рандомная задержка перед пингом комнаты.
-							sleepTime := time.Duration(rand.Int63n(1000*config.Jabber.PingSplayDelay)) * time.Millisecond //nolint:gosec
-							time.Sleep(sleepTime)
-
-							log.Debugf("Sending MUC ping from %s to %s", talk.JID(), room)
-
-							if err := talk.PingS2S(talk.JID(), room); err != nil {
-								gTomb.Kill(err)
-							}
-						}(room)
-					}
-				}
-
-				time.Sleep(time.Duration(config.Jabber.MucPingDelay) * time.Second)
-			}
-		}
-	}
-}
-
-// RotateStatus периодически изменяет статус бота в MUC-е согласно настройкам из кофига.
-func RotateStatus(room string) {
-	defer gTomb.Done()
-
-	for {
-		select {
-		case <-gTomb.Dying():
-			return
-
-		default:
-			// TODO: Переделать на ticker-ы
-			totalSleepTime := time.Duration(config.Jabber.RuntimeStatus.RotationTime) * time.Second
-			totalSleepTime += time.Duration(config.Jabber.RuntimeStatus.RotationSplayTime) * time.Second
-
-			for {
-				status := randomPhrase(config.Jabber.RuntimeStatus.Text)
-				log.Debugf("Set status for MUC: %s to: %s", room, status)
-
-				var p xmpp.Presence
-
-				if room != "" {
-					p = xmpp.Presence{ //nolint:exhaustruct
-						To:     room,
-						Status: status,
-					}
-				} else {
-					p = xmpp.Presence{ //nolint:exhaustruct
-						Status: status,
-					}
-				}
-
-				if _, err := talk.SendPresence(p); err != nil {
-					log.Infof("Unable to send presence to MUC %s: %s", room, err)
-					gTomb.Kill(err)
-
-					return
-				}
-
-				// Если мы не хотим ротировать, то цикл нам тут не нужен, просто выходим.
-				if config.Jabber.RuntimeStatus.RotationTime == 0 {
-					gTomb.Done()
-
-					return
-				}
-
-				time.Sleep(totalSleepTime)
-			}
-		}
-	}
-}
-
-// randomPhrase Выдаёт одну рандомную фразу из даденного списка фраз.
-func randomPhrase(list []string) string {
-	phrase := ""
-
-	if listLen := len(list); listLen > 0 {
-		phrase = list[rand.Intn(listLen)] //nolint:gosec
-	}
-
-	return phrase
-}
-
-/* vim: set ft=go noet ai ts=4 sw=4 sts=4: */

main.go

@@ -1,199 +0,0 @@
-package main
-
-import (
-	"crypto/tls"
-	"errors"
-	"fmt"
-	"io"
-	"net"
-	"os"
-	"os/signal"
-	"time"
-
-	"github.com/eleksir/go-xmpp"
-	log "github.com/sirupsen/logrus"
-	"gopkg.in/tomb.v1"
-)
-
-func init() {
-	log.SetFormatter(&log.TextFormatter{ //nolint:exhaustruct
-		DisableQuote:           true,
-		DisableLevelTruncation: false,
-		DisableColors:          true,
-		FullTimestamp:          true,
-		TimestampFormat:        "2006-01-02 15:04:05",
-	})
-
-	readConfig()
-
-	// no panic
-	switch config.Loglevel {
-	case "fatal":
-		log.SetLevel(log.FatalLevel)
-	case "error":
-		log.SetLevel(log.ErrorLevel)
-	case "warn":
-		log.SetLevel(log.WarnLevel)
-	case "info":
-		log.SetLevel(log.InfoLevel)
-	case "debug":
-		log.SetLevel(log.DebugLevel)
-	case "trace":
-		log.SetLevel(log.TraceLevel)
-	default:
-		log.SetLevel(log.InfoLevel)
-	}
-}
-
-func main() {
-	// Откроем лог и скормим его логгеру
-	if config.Log != "" {
-		logfile, err := os.OpenFile(config.Log, os.O_WRONLY|os.O_APPEND|os.O_CREATE, 0644)
-
-		if err != nil {
-			log.Fatalf("Unable to open log file %s: %s", config.Log, err)
-		}
-
-		log.SetOutput(logfile)
-	}
-
-	myLogLevel := log.GetLevel()
-	log.Warnf("Loglevel set to %v", myLogLevel)
-
-	verboseClient := false
-
-	if myLogLevel == log.TraceLevel {
-		verboseClient = true
-	}
-
-	// Самое время вгрузить белые и чёрные списки, если что - получим ошибку в лог.
-	readWhitelist()
-	readBlacklist()
-
-	// github.com/mattn/go-xmpp пишет в stdio, нам этого не надо, ловим выхлоп его в logrus с уровнем trace
-	xmpp.DebugWriter = log.WithFields(log.Fields{"logger": "stdlib"}).WriterLevel(log.TraceLevel)
-
-	// Хэндлер сигналов не надо трогать, он нужен для завершения программы целиком
-	go sigHandler()
-	signal.Notify(sigChan, os.Interrupt)
-
-	for {
-		options = &xmpp.Options{ //nolint:exhaustruct
-			Host:     fmt.Sprintf("%s:%d", config.Jabber.Server, config.Jabber.Port),
-			User:     config.Jabber.User,
-			Password: config.Jabber.Password,
-			Resource: config.Jabber.Resource,
-			NoTLS:    !config.Jabber.Ssl,
-			StartTLS: config.Jabber.StartTLS,
-			TLSConfig: &tls.Config{ //nolint:exhaustruct
-				ServerName:         config.Jabber.Server,
-				InsecureSkipVerify: !config.Jabber.SslVerify, //nolint:gosec
-			},
-			InsecureAllowUnencryptedAuth: config.Jabber.InsecureAllowUnencryptedAuth,
-			Debug:                        verboseClient,
-			Session:                      false,
-			Status:                       "xa",
-			StatusMessage:                randomPhrase(config.Jabber.StartupStatus),
-			DialTimeout:                  time.Duration(config.Jabber.ConnectionTimeout) * time.Second,
-		}
-
-		// Через tomb попробуем сделать выход горутинок управляемым
-		gTomb = tomb.Tomb{}
-
-		// Устанавливаем соединение и гребём события, посылаемые сервером
-		myLoop()
-
-		log.Error(gTomb.Wait())
-		time.Sleep(time.Duration(config.Jabber.ReconnectDelay) * time.Second)
-	}
-}
-
-func myLoop() {
-	defer gTomb.Done()
-
-	for {
-		select {
-		case <-gTomb.Dying():
-			return
-		default:
-			// Зададим начальное значение глобальным переменным
-			serverPingTimestampRx = 0
-			serverPingTimestampTx = 0
-			roomsConnected = make([]string, 1)
-			lastActivity = 0
-			lastServerActivity = 0
-			lastMucActivity = NewCollection()
-			serverCapsQueried = false
-			serverCapsList = NewCollection()
-			mucCapsList = NewCollection()
-			serverPingTimestampTx = 0
-			serverPingTimestampRx = 0
-
-			// Установим коннект
-			establishConnection()
-
-			serverPingTimestampRx = time.Now().Unix() // Считаем, что если коннект запустился, то первый пинг успешен
-
-			// Тыкаем сервер палочкой, проверяем, что коннект жив и переустанавливаем его, если он не жив
-			go probeServerLiveness()
-
-			// Тыкаем muc-и палочкой, проверяем, что они живы и пере-заходим в них, если пинги пропали
-			go probeMUCLiveness()
-
-			// Гребём сообщения...
-			for {
-				// Стриггерилось завершение работы приложения, или соединение не установлено (порвалось, например)
-				// грести не надо
-				if shutdown {
-					break
-				}
-
-				if !isConnected {
-					continue
-				}
-
-				chat, err := talk.Recv()
-
-				if err != nil {
-					log.Errorf("Unable to get events from server: %s", err)
-
-					switch {
-					// Стрим не читается, он закрылся с той стороны во время чтения
-					case errors.Is(err, io.EOF):
-						err := fmt.Errorf("tcp stream closed while reading, err=%w", err)
-						gTomb.Kill(err)
-
-						continue
-
-					// Пытаемся читать закрытый сокет
-					case errors.Is(err, net.ErrClosed):
-						err := fmt.Errorf("unable to read closed socket, err=%w", err)
-						gTomb.Kill(err)
-
-						continue
-
-					// Не смогли записать в сокет
-					case errors.Is(err, net.ErrWriteToConnected):
-						err := fmt.Errorf("unable to write to socket, err=%w", err)
-						gTomb.Kill(err)
-
-						continue
-
-					// Не сетевая проблема
-					default:
-						// Это уже что-то странное.
-						// Вероятно, ошибка парсинга xml. Собственно, баг сервера, тут мы ничего поделать не можем
-						err := fmt.Errorf("error during parsing received message, err=%w", err)
-						gTomb.Kill(err)
-
-						continue
-					}
-				}
-
-				parseEvent(chat)
-			}
-		}
-	}
-}
-
-/* vim: set ft=go noet ai ts=4 sw=4 sts=4: */

types.go

@@ -1,110 +0,0 @@
-package main
-
-import (
-	"encoding/xml"
-)
-
-// myConfig прототип структурки с конфигом.
-type myConfig struct {
-	Jabber struct {
-		Server                       string   `json:"server,omitempty"`
-		Port                         int      `json:"port,omitempty"`
-		Ssl                          bool     `json:"ssl,omitempty"`
-		StartTLS                     bool     `json:"starttls,omitempty"`
-		SslVerify                    bool     `json:"ssl_verify,omitempty"`
-		InsecureAllowUnencryptedAuth bool     `json:"insecureallowunencryptedauth,omitempty"`
-		ConnectionTimeout            int64    `json:"connection_timeout,omitempty"`
-		ReconnectDelay               int64    `json:"reconnect_delay,omitempty"`
-		ServerPingDelay              int64    `json:"server_ping_delay,omitempty"`
-		MucPingDelay                 int64    `json:"muc_ping_delay,omitempty"`
-		MucRejoinDelay               int64    `json:"muc_rejoin_delay,omitempty"`
-		PingSplayDelay               int64    `json:"ping_splay_delay,omitempty"`
-		Nick                         string   `json:"nick,omitempty"`
-		Resource                     string   `json:"resource,omitempty"`
-		User                         string   `json:"user,omitempty"`
-		Password                     string   `json:"password,omitempty"`
-		Channels                     []string `json:"channels"`
-		StartupStatus                []string `json:"startup_status,omitempty"`
-		RuntimeStatus                struct {
-			Text              []string `json:"text,omitempty"`
-			RotationTime      int64    `json:"rotation_time,omitempty"`
-			RotationSplayTime int64    `json:"rotation_splay_time,omitempty"`
-		} `json:"runtime_status,omitempty"`
-		BanPhrasesEnable bool     `json:"ban_phrases_enable,omitempty"`
-		BanPhrases       []string `json:"ban_phrases,omitempty"`
-	} `json:"jabber,omitempty"`
-
-	Loglevel string `json:"loglevel,omitempty"`
-	Log      string `json:"log,omitempty"`
-}
-
-// myWhiteList прототип структурки с белым списком jid-ов.
-type myWhiteList struct {
-	Whitelist []struct {
-		RoomName string   `json:"room_name,omitempty"`
-		Jid      []string `json:"jid,omitempty"`
-		WipeBans bool     `json:"wipe_bans,omitempty"`
-	} `json:"whitelist,omitempty"`
-}
-
-// myBlackList прототип структурки с чёрным списком jid-ов.
-type myBlackList struct {
-	Blacklist []struct {
-		RoomName     string   `json:"room_name,omitempty"`
-		ReasonEnable bool     `json:"reason_enable,omitempty"`
-		JidRe        []string `json:"jid_re,omitempty"`
-		NickRe       []string `json:"nick_re,omitempty"`
-	} `json:"blacklist,omitempty"`
-}
-
-// jabberSimpleIqGetQuery прототип структурки для разбора запросов xmpp discovery query, например,
-// https://xmpp.org/extensions/xep-0030.html#example-18 .
-type jabberSimpleIqGetQuery struct {
-	XMLName xml.Name `xml:"query"`
-	Text    string   `xml:",chardata"`
-	Xmlns   string   `xml:"xmlns,attr"`
-	Node    string   `xml:"node,attr,omitempty"` // для xmlns="http://jabber.org/protocol/disco#items"
-}
-
-// jabberPubsubIQGetQuery прототип структурки для разбора запросов xmpp pubsub.
-type jabberPubsubIQGetQuery struct {
-	XMLName xml.Name `xml:"pubsub"`
-	Text    string   `xml:",chardata"`
-	Xmlns   string   `xml:"xmlns,attr"`
-	Items   struct {
-		Text     string `xml:",chardata"`
-		Node     string `xml:"node,attr"`
-		MaxItems string `xml:"max_items,attr"`
-	} `xml:"items"`
-}
-
-// jabberTimeIqGetQuery прототип структурки для разбора IQ запросов на локальное время клиента,
-// https://xmpp.org/extensions/xep-0202.html
-type jabberTimeIqGetQuery struct {
-	// <time xmlns="urn:xmpp:time"/>
-	XMLName xml.Name `xml:"time"`
-	Text    string   `xml:",chardata"`
-	Xmlns   string   `xml:"xmlns,attr"`
-}
-
-// jabberIqPing прототип структурки для разбора IQ запросов на пинг клиента, https://xmpp.org/extensions/xep-0199.html
-type jabberIqPing struct {
-	XMLName xml.Name `xml:"ping"`
-	Text    string   `xml:",chardata"`
-	Xmlns   string   `xml:"xmlns,attr"`
-}
-
-// jabberIqErrorCancelNotAcceptable прототип структурки для разбора IQ ответов, когда сервис (сервер, клиент, etc) не
-// может или не хочет принимать наш iq-запрос https://xmpp.org/extensions/xep-0099.html
-type jabberIqErrorCancelNotAcceptable struct {
-	XMLName       xml.Name `xml:"error"`
-	Text          string   `xml:",chardata"`
-	Type          string   `xml:"type,attr"`
-	By            string   `xml:"by,attr"`
-	NotAcceptable struct {
-		Text  string `xml:",chardata"`
-		Xmlns string `xml:"xmlns,attr"`
-	} `xml:"not-acceptable"`
-}
-
-/* vim: set ft=go noet ai ts=4 sw=4 sts=4: */

vendor/github.com/eleksir/go-xmpp/.golangci.yml

@@ -0,0 +1,66 @@
+run:
+  tests: false
+  skip-dirs:
+    - _example
+  modules-download-mode: readonly
+  allow-parallel-runners: true
+  go: '1.21'
+output:
+  sort-results: true
+linters-settings:
+  gosec:
+    excludes:
+      # Оно не используется для повышения безопасности или каких-то таких секъюрых вещей, оно используется для выборки
+      # произвольного элемента из массива, так что ИДИ НАХУЙ с этой проверкой и не еби мозги липовой безопасностью.
+      - G404 # Insecure random number source (rand)
+linters:
+  disable-all: true
+  enable:
+    - errcheck
+    - gosimple
+    - govet
+    - ineffassign
+    - staticcheck
+    - unused
+    - asasalint
+    - asciicheck
+    - bodyclose
+    - containedctx
+    - contextcheck
+    - decorder
+    - durationcheck
+    - errchkjson
+    - errorlint
+    - exhaustive
+    - exportloopref
+    - gci
+    - ginkgolinter
+    - gocheckcompilerdirectives
+    - gocritic
+    - godot
+    - gofmt
+    - goimports
+    - gosec
+    - gosmopolitan
+    - grouper
+    - importas
+    - ireturn
+    - makezero
+    - mirror
+    - nakedret
+    - nilerr
+    - nilnil
+    - nlreturn
+    - noctx
+    - nolintlint
+    - nonamedreturns
+    - predeclared
+    - promlinter
+    - reassign
+    - revive
+    - rowserrcheck
+    - stylecheck
+    - unconvert
+    - wastedassign
+    - whitespace
+    - wsl

vendor/github.com/eleksir/go-xmpp/README.md

@@ -3,12 +3,12 @@ go-xmpp
 
 go xmpp library.
 
-[Original](https://github.com/rsc/rsc/blob/master/xmpp/xmpp.go) was done by [Russ Cox](https://github.com/rsc), then
+[Original](https://github.com/rsc/rsc/blob/master/xmpp/xmpp.go) work done by [Russ Cox](https://github.com/rsc), 
-forked by [Yasuhiro Matsumoto](https://github.com/mattn).
+then [Yasuhiro Matsumoto](https://github.com/mattn) fork it and continue to improve it.
 
-Since both of them have amost zero interest in continuing develop of this lib, i decide to fork it.
+Since both of them have almost zero interest to continue develop this lib, I decide to fork it.
 
 Documentation can be found at [godoc project](https://godoc.org/github.com/eleksir/go-xmpp)
 
-This fork mainains my needs for xmpp protocol. Feel free to contribute via PR-s if you find it interesing too and feel
+This fork maintains my needs for xmpp protocol. Feel free to contribute via PR-s if you find it interesting too and feel
-that it needs more love than it already has.
+that it needs more love than it already has. And of course fell free to for it if needed.

vendor/github.com/eleksir/go-xmpp/xmpp_avatar.go

@@ -1,7 +1,7 @@
 package xmpp
 
 import (
-	"crypto/sha1"
+	"crypto/sha1" //nolint:gosec // go fuck yourself, gosec. You don't even fucking read rfc. So shout the fuck up.
 	"encoding/base64"
 	"encoding/hex"
 	"encoding/xml"
@@ -10,8 +10,8 @@ import (
 )
 
 const (
-	XMPPNS_AVATAR_PEP_DATA     = "urn:xmpp:avatar:data"
+	XMPPNS_AVATAR_PEP_DATA     = "urn:xmpp:avatar:data"     //nocritic:revive
-	XMPPNS_AVATAR_PEP_METADATA = "urn:xmpp:avatar:metadata"
+	XMPPNS_AVATAR_PEP_METADATA = "urn:xmpp:avatar:metadata" //nocritic:revive
 )
 
 type clientAvatarData struct {
@@ -52,8 +52,8 @@ type AvatarMetadata struct {
 
 func handleAvatarData(itemsBody []byte, from, id string) (AvatarData, error) {
 	var data clientAvatarData
-	err := xml.Unmarshal(itemsBody, &data)
+
-	if err != nil {
+	if err := xml.Unmarshal(itemsBody, &data); err != nil {
 		return AvatarData{}, err
 	}
 
@@ -64,8 +64,9 @@ func handleAvatarData(itemsBody []byte, from, id string) (AvatarData, error) {
 		return AvatarData{}, err
 	}
 
-	hash := sha1.Sum(dataRaw)
+	hash := sha1.Sum(dataRaw) //nolint:gosec // go fuck yourself, gosec. This exact mechanics described in standard.
 	hashStr := hex.EncodeToString(hash[:])
+
 	if hashStr != id {
 		return AvatarData{}, errors.New("SHA1 hashes do not match")
 	}
@@ -77,9 +78,12 @@ func handleAvatarData(itemsBody []byte, from, id string) (AvatarData, error) {
 }
 
 func handleAvatarMetadata(body []byte, from string) (AvatarMetadata, error) {
-	var meta clientAvatarMetadata
+	var (
-	err := xml.Unmarshal(body, &meta)
+		meta clientAvatarMetadata
-	if err != nil {
+		err  error
+	)
+
+	if err = xml.Unmarshal(body, &meta); err != nil {
 		return AvatarMetadata{}, err
 	}
 
@@ -91,10 +95,10 @@ func handleAvatarMetadata(body []byte, from string) (AvatarMetadata, error) {
 		ID:     meta.Info.ID,
 		Type:   meta.Info.Type,
 		URL:    meta.Info.URL,
-	}, nil
+	}, err
 }
 
-// A wrapper for atoi which just returns -1 if an error occurs
+// atoiw is a wrapper for atoi which just returns -1 if an error occurs.
 func atoiw(str string) int {
 	i, err := strconv.Atoi(str)
 	if err != nil {
@@ -104,22 +108,22 @@ func atoiw(str string) int {
 	return i
 }
 
-func (c *Client) AvatarSubscribeMetadata(jid string) {
+func (c *Client) AvatarSubscribeMetadata(jid string) (string, error) {
-	c.PubsubSubscribeNode(XMPPNS_AVATAR_PEP_METADATA, jid)
+	return c.PubsubSubscribeNode(XMPPNS_AVATAR_PEP_METADATA, jid)
 }
 
-func (c *Client) AvatarUnsubscribeMetadata(jid string) {
+func (c *Client) AvatarUnsubscribeMetadata(jid string) (string, error) {
-	c.PubsubUnsubscribeNode(XMPPNS_AVATAR_PEP_METADATA, jid)
+	return c.PubsubUnsubscribeNode(XMPPNS_AVATAR_PEP_METADATA, jid)
 }
 
-func (c *Client) AvatarRequestData(jid string) {
+func (c *Client) AvatarRequestData(jid string) (string, error) {
-	c.PubsubRequestLastItems(XMPPNS_AVATAR_PEP_DATA, jid)
+	return c.PubsubRequestLastItems(XMPPNS_AVATAR_PEP_DATA, jid)
 }
 
-func (c *Client) AvatarRequestDataByID(jid, id string) {
+func (c *Client) AvatarRequestDataByID(jid, id string) (string, error) {
-	c.PubsubRequestItem(XMPPNS_AVATAR_PEP_DATA, jid, id)
+	return c.PubsubRequestItem(XMPPNS_AVATAR_PEP_DATA, jid, id)
 }
 
-func (c *Client) AvatarRequestMetadata(jid string) {
+func (c *Client) AvatarRequestMetadata(jid string) (string, error) {
-	c.PubsubRequestLastItems(XMPPNS_AVATAR_PEP_METADATA, jid)
+	return c.PubsubRequestLastItems(XMPPNS_AVATAR_PEP_METADATA, jid)
 }

vendor/github.com/eleksir/go-xmpp/xmpp_disco.go

@@ -5,8 +5,8 @@ import (
 )
 
 const (
-	XMPPNS_DISCO_ITEMS = "http://jabber.org/protocol/disco#items"
+	XMPPNS_DISCO_ITEMS = "http://jabber.org/protocol/disco#items" //nocritic:revive
-	XMPPNS_DISCO_INFO  = "http://jabber.org/protocol/disco#info"
+	XMPPNS_DISCO_INFO  = "http://jabber.org/protocol/disco#info"  //nocritic:revive
 )
 
 type clientDiscoFeature struct {
@@ -90,6 +90,7 @@ func clientIdentitiesToReturn(identities []clientDiscoIdentity) []DiscoIdentity
 
 func clientDiscoItemsToReturn(items []clientDiscoItem) []DiscoItem {
 	var ret []DiscoItem
+
 	for _, item := range items {
 		ret = append(ret, DiscoItem{
 			Jid:  item.Jid,

vendor/github.com/eleksir/go-xmpp/xmpp_information_query.go

@@ -14,22 +14,25 @@ const IQTypeError = "error"
 func (c *Client) Discovery() (string, error) {
 	// use getCookie for a pseudo random id.
 	reqID := strconv.FormatUint(uint64(getCookie()), 10)
+
 	return c.RawInformationQuery(c.jid, c.domain, reqID, IQTypeGet, XMPPNS_DISCO_ITEMS, "")
 }
 
 // DiscoverNodeInfo discovers information about a node. Empty node queries info about server itself.
 func (c *Client) DiscoverNodeInfo(node string) (string, error) {
 	query := fmt.Sprintf("<query xmlns='%s' node='%s'/>", XMPPNS_DISCO_INFO, node)
+
 	return c.RawInformation(c.jid, c.domain, "info3", IQTypeGet, query)
 }
 
 // DiscoverInfo discovers information about given item from given jid.
 func (c *Client) DiscoverInfo(from string, to string) (string, error) {
 	query := fmt.Sprintf("<query xmlns='%s'/>", XMPPNS_DISCO_INFO)
+
 	return c.RawInformation(from, to, "info3", IQTypeGet, query)
 }
 
-// DiscoverServerItems discover items that the server exposes
+// DiscoverServerItems discover items that the server exposes.
 func (c *Client) DiscoverServerItems() (string, error) {
 	return c.DiscoverEntityItems(c.domain)
 }
@@ -37,6 +40,7 @@ func (c *Client) DiscoverServerItems() (string, error) {
 // DiscoverEntityItems discovers items that an entity exposes.
 func (c *Client) DiscoverEntityItems(jid string) (string, error) {
 	query := fmt.Sprintf("<query xmlns='%s'/>", XMPPNS_DISCO_ITEMS)
+
 	return c.RawInformation(c.jid, jid, "info1", IQTypeGet, query)
 }
 
@@ -44,6 +48,7 @@ func (c *Client) DiscoverEntityItems(jid string) (string, error) {
 func (c *Client) RawInformationQuery(from, to, id, iqType, requestNamespace, body string) (string, error) {
 	const xmlIQ = "<iq from='%s' to='%s' id='%s' type='%s'><query xmlns='%s'>%s</query></iq>"
 	_, err := fmt.Fprintf(StanzaWriter, xmlIQ, xmlEscape(from), xmlEscape(to), id, iqType, requestNamespace, body)
+
 	return id, err
 }
 
@@ -51,6 +56,7 @@ func (c *Client) RawInformationQuery(from, to, id, iqType, requestNamespace, bod
 func (c *Client) RawInformation(from, to, id, iqType, body string) (string, error) {
 	const xmlIQ = "<iq from='%s' to='%s' id='%s' type='%s'>%s</iq>"
 	_, err := fmt.Fprintf(StanzaWriter, xmlIQ, xmlEscape(from), xmlEscape(to), id, iqType, body)
+
 	return id, err
 }
 
@@ -64,7 +70,7 @@ func (c *Client) IqVersionResponse(v IQ, name, version, os string) (string, erro
 		version = "undefined"
 	}
 
-	query := "<query xmlns=\"jabber:iq:version\">" //nolint:wsl
+	query := "<query xmlns=\"jabber:iq:version\">"
 	query += fmt.Sprintf("<name>%s</name>", name)
 	query += fmt.Sprintf("<version>%s</version>", version)
 
@@ -100,9 +106,9 @@ func (c *Client) JabberIqLastResponse(v IQ, lastActivity int64) (string, error)
 	)
 }
 
-// UrnXmppTimeResponse implements response to query entity's current time (xep-0202).
+// UrnXMPPTimeResponse implements response to query entity's current time (xep-0202).
-// TimezoneOffset have format +HH:MM or -HH:MM
+// TimezoneOffset have format +HH:MM or -HH:MM.
-func (c *Client) UrnXmppTimeResponse(v IQ, timezoneOffset string) (string, error) {
+func (c *Client) UrnXMPPTimeResponse(v IQ, timezoneOffset string) (string, error) {
 	query := fmt.Sprintf(
 		"<time xmlns=\"urn:xmpp:time\"><tzo>%s</tzo><utc>%s</utc></time>",
 		timezoneOffset,

vendor/github.com/eleksir/go-xmpp/xmpp_muc.go

@@ -3,7 +3,6 @@
 // license that can be found in the LICENSE file.
 
 // TODO(flo):
-//   - support password protected MUC rooms
 //   - cleanup signatures of join/leave functions
 package xmpp
 
@@ -23,16 +22,18 @@ const (
 	SinceHistory   = 4
 )
 
-// Send sends room topic wrapped inside an XMPP message stanza body.
+// SendTopic sends room topic wrapped inside an XMPP message stanza body.
-func (c *Client) SendTopic(chat Chat) (n int, err error) {
+func (c *Client) SendTopic(chat Chat) (int, error) {
 	return fmt.Fprintf(StanzaWriter, "<message to='%s' type='%s' xml:lang='en'>"+"<subject>%s</subject></message>",
 		xmlEscape(chat.Remote), xmlEscape(chat.Type), xmlEscape(chat.Text))
 }
 
-func (c *Client) JoinMUCNoHistory(jid, nick string) (n int, err error) {
+// JoinMUCNoHistory joins room and instructs server that no history data required.
+func (c *Client) JoinMUCNoHistory(jid, nick string) (int, error) {
 	if nick == "" {
 		nick = c.jid
 	}
+
 	return fmt.Fprintf(StanzaWriter, "<presence to='%s/%s'>\n"+
 		"<x xmlns='%s'>"+
 		"<history maxchars='0'/></x>\n"+
@@ -40,12 +41,13 @@ func (c *Client) JoinMUCNoHistory(jid, nick string) (n int, err error) {
 		xmlEscape(jid), xmlEscape(nick), nsMUC)
 }
 
-// xep-0045 7.2
+// JoinMUC joins room, xep-0045 7.2.
-func (c *Client) JoinMUC(jid, nick string, history_type, history int, history_date *time.Time) (n int, err error) {
+func (c *Client) JoinMUC(jid, nick string, historyType, history int, historyDate *time.Time) (int, error) {
 	if nick == "" {
 		nick = c.jid
 	}
-	switch history_type {
+
+	switch historyType {
 	case NoHistory:
 		return fmt.Fprintf(StanzaWriter, "<presence to='%s/%s'>\n"+
 			"<x xmlns='%s' />\n"+
@@ -70,23 +72,25 @@ func (c *Client) JoinMUC(jid, nick string, history_type, history int, history_da
 			"</presence>",
 			xmlEscape(jid), xmlEscape(nick), nsMUC, history)
 	case SinceHistory:
-		if history_date != nil {
+		if historyDate != nil {
 			return fmt.Fprintf(StanzaWriter, "<presence to='%s/%s'>\n"+
 				"<x xmlns='%s'>\n"+
 				"<history since='%s'/></x>\n"+
 				"</presence>",
-				xmlEscape(jid), xmlEscape(nick), nsMUC, history_date.Format(time.RFC3339))
+				xmlEscape(jid), xmlEscape(nick), nsMUC, historyDate.Format(time.RFC3339))
 		}
 	}
-	return 0, errors.New("Unknown history option")
+
+	return 0, errors.New("unknown history option")
 }
 
-// xep-0045 7.2.6
+// JoinProtectedMUC joins password protected room, xep-0045 7.2.6.
-func (c *Client) JoinProtectedMUC(jid, nick string, password string, history_type, history int, history_date *time.Time) (n int, err error) {
+func (c *Client) JoinProtectedMUC(jid, nick string, password string, historyType, history int, historyDate *time.Time) (int, error) {
 	if nick == "" {
 		nick = c.jid
 	}
-	switch history_type {
+
+	switch historyType {
 	case NoHistory:
 		return fmt.Fprintf(StanzaWriter, "<presence to='%s/%s'>\n"+
 			"<x xmlns='%s'>\n"+
@@ -116,20 +120,21 @@ func (c *Client) JoinProtectedMUC(jid, nick string, password string, history_typ
 			"</presence>",
 			xmlEscape(jid), xmlEscape(nick), nsMUC, xmlEscape(password), history)
 	case SinceHistory:
-		if history_date != nil {
+		if historyDate != nil {
 			return fmt.Fprintf(StanzaWriter, "<presence to='%s/%s'>\n"+
 				"<x xmlns='%s'>\n"+
 				"<password>%s</password>\n"+
 				"<history since='%s'/></x>\n"+
 				"</presence>",
-				xmlEscape(jid), xmlEscape(nick), nsMUC, xmlEscape(password), history_date.Format(time.RFC3339))
+				xmlEscape(jid), xmlEscape(nick), nsMUC, xmlEscape(password), historyDate.Format(time.RFC3339))
 		}
 	}
-	return 0, errors.New("Unknown history option")
+
+	return 0, errors.New("unknown history option")
 }
 
-// xep-0045 7.14
+// LeaveMUC quits from room xep-0045 7.14.
-func (c *Client) LeaveMUC(jid string) (n int, err error) {
+func (c *Client) LeaveMUC(jid string) (int, error) {
 	return fmt.Fprintf(StanzaWriter, "<presence from='%s' to='%s' type='unavailable' />",
 		c.jid, xmlEscape(jid))
 }

vendor/github.com/eleksir/go-xmpp/xmpp_ping.go

@@ -8,13 +8,16 @@ func (c *Client) PingC2S(jid, server string) error {
 	if jid == "" {
 		jid = c.jid
 	}
+
 	if server == "" {
 		server = c.domain
 	}
+
 	_, err := fmt.Fprintf(StanzaWriter, "<iq from='%s' to='%s' id='c2s1' type='get'>\n"+
 		"<ping xmlns='urn:xmpp:ping'/>\n"+
 		"</iq>",
 		xmlEscape(jid), xmlEscape(server))
+
 	return err
 }
 
@@ -23,16 +26,18 @@ func (c *Client) PingS2S(fromServer, toServer string) error {
 		"<ping xmlns='urn:xmpp:ping'/>\n"+
 		"</iq>",
 		xmlEscape(fromServer), xmlEscape(toServer))
+
 	return err
 }
 
 func (c *Client) SendResultPing(id, toServer string) error {
 	_, err := fmt.Fprintf(StanzaWriter, "<iq type='result' to='%s' id='%s'/>",
 		xmlEscape(toServer), xmlEscape(id))
+
 	return err
 }
 
-// PingResponse responding to ping query according to xep-0199
+// PingResponse responding to ping query according to xep-0199.
 func (c *Client) PingResponse(v IQ) (string, error) {
 	return c.RawInformation(
 		v.To,

vendor/github.com/eleksir/go-xmpp/xmpp_pubsub.go

@@ -6,8 +6,8 @@ import (
 )
 
 const (
-	XMPPNS_PUBSUB       = "http://jabber.org/protocol/pubsub"
+	XMPPNS_PUBSUB       = "http://jabber.org/protocol/pubsub"       //nolint:revive
-	XMPPNS_PUBSUB_EVENT = "http://jabber.org/protocol/pubsub#event"
+	XMPPNS_PUBSUB_EVENT = "http://jabber.org/protocol/pubsub#event" //nolint:revive
 )
 
 type clientPubsubItem struct {
@@ -67,7 +67,7 @@ type PubsubItems struct {
 	Items []PubsubItem
 }
 
-// Converts []clientPubsubItem to []PubsubItem
+// Converts []clientPubsubItem to []PubsubItem.
 func pubsubItemsToReturn(items []clientPubsubItem) []PubsubItem {
 	var tmp []PubsubItem
 	for _, i := range items {
@@ -96,6 +96,7 @@ func pubsubSubscriptionStanza(node, jid string) string {
 	body := fmt.Sprintf("<subscribe node='%s' jid='%s'/>",
 		xmlEscape(node),
 		xmlEscape(jid))
+
 	return pubsubStanza(body)
 }
 
@@ -103,6 +104,7 @@ func pubsubUnsubscriptionStanza(node, jid string) string {
 	body := fmt.Sprintf("<unsubscribe node='%s' jid='%s'/>",
 		xmlEscape(node),
 		xmlEscape(jid))
+
 	return pubsubStanza(body)
 }
 
@@ -124,10 +126,12 @@ func (c *Client) PubsubUnsubscribeNode(node, jid string) (string, error) {
 
 func (c *Client) PubsubRequestLastItems(node, jid string) (string, error) {
 	body := fmt.Sprintf("<items node='%s'/>", node)
+
 	return c.RawInformation(c.jid, jid, "items1", "get", pubsubStanza(body))
 }
 
 func (c *Client) PubsubRequestItem(node, jid, id string) (string, error) {
 	body := fmt.Sprintf("<items node='%s'><item id='%s'/></items>", node, id)
+
 	return c.RawInformation(c.jid, jid, "items3", "get", pubsubStanza(body))
 }

vendor/github.com/eleksir/go-xmpp/xmpp_subscription.go

@@ -4,22 +4,30 @@ import (
 	"fmt"
 )
 
-func (c *Client) ApproveSubscription(jid string) {
+func (c *Client) ApproveSubscription(jid string) error {
-	fmt.Fprintf(StanzaWriter, "<presence to='%s' type='subscribed'/>",
+	_, err := fmt.Fprintf(StanzaWriter, "<presence to='%s' type='subscribed'/>",
 		xmlEscape(jid))
+
+	return err
 }
 
-func (c *Client) RevokeSubscription(jid string) {
+func (c *Client) RevokeSubscription(jid string) error {
-	fmt.Fprintf(StanzaWriter, "<presence to='%s' type='unsubscribed'/>",
+	_, err := fmt.Fprintf(StanzaWriter, "<presence to='%s' type='unsubscribed'/>",
 		xmlEscape(jid))
+
+	return err
 }
 
-func (c *Client) RetrieveSubscription(jid string) {
+func (c *Client) RetrieveSubscription(jid string) error {
-	fmt.Fprintf(c.conn, "<presence to='%s' type='unsubscribe'/>",
+	_, err := fmt.Fprintf(c.conn, "<presence to='%s' type='unsubscribe'/>",
 		xmlEscape(jid))
+
+	return err
 }
 
-func (c *Client) RequestSubscription(jid string) {
+func (c *Client) RequestSubscription(jid string) error {
-	fmt.Fprintf(StanzaWriter, "<presence to='%s' type='subscribe'/>",
+	_, err := fmt.Fprintf(StanzaWriter, "<presence to='%s' type='subscribe'/>",
 		xmlEscape(jid))
+
+	return err
 }

vendor/github.com/google/uuid/CHANGELOG.md

@@ -0,0 +1,41 @@
+# Changelog
+
+## [1.6.0](https://github.com/google/uuid/compare/v1.5.0...v1.6.0) (2024-01-16)
+
+
+### Features
+
+* add Max UUID constant ([#149](https://github.com/google/uuid/issues/149)) ([c58770e](https://github.com/google/uuid/commit/c58770eb495f55fe2ced6284f93c5158a62e53e3))
+
+
+### Bug Fixes
+
+* fix typo in version 7 uuid documentation ([#153](https://github.com/google/uuid/issues/153)) ([016b199](https://github.com/google/uuid/commit/016b199544692f745ffc8867b914129ecb47ef06))
+* Monotonicity in UUIDv7 ([#150](https://github.com/google/uuid/issues/150)) ([a2b2b32](https://github.com/google/uuid/commit/a2b2b32373ff0b1a312b7fdf6d38a977099698a6))
+
+## [1.5.0](https://github.com/google/uuid/compare/v1.4.0...v1.5.0) (2023-12-12)
+
+
+### Features
+
+* Validate UUID without creating new UUID ([#141](https://github.com/google/uuid/issues/141)) ([9ee7366](https://github.com/google/uuid/commit/9ee7366e66c9ad96bab89139418a713dc584ae29))
+
+## [1.4.0](https://github.com/google/uuid/compare/v1.3.1...v1.4.0) (2023-10-26)
+
+
+### Features
+
+* UUIDs slice type with Strings() convenience method ([#133](https://github.com/google/uuid/issues/133)) ([cd5fbbd](https://github.com/google/uuid/commit/cd5fbbdd02f3e3467ac18940e07e062be1f864b4))
+
+### Fixes
+
+* Clarify that Parse's job is to parse but not necessarily validate strings. (Documents current behavior)
+
+## [1.3.1](https://github.com/google/uuid/compare/v1.3.0...v1.3.1) (2023-08-18)
+
+
+### Bug Fixes
+
+* Use .EqualFold() to parse urn prefixed UUIDs ([#118](https://github.com/google/uuid/issues/118)) ([574e687](https://github.com/google/uuid/commit/574e6874943741fb99d41764c705173ada5293f0))
+
+## Changelog

vendor/github.com/google/uuid/CONTRIBUTING.md

@@ -0,0 +1,26 @@
+# How to contribute
+
+We definitely welcome patches and contribution to this project!
+
+### Tips
+
+Commits must be formatted according to the [Conventional Commits Specification](https://www.conventionalcommits.org).
+
+Always try to include a test case! If it is not possible or not necessary,
+please explain why in the pull request description.
+
+### Releasing
+
+Commits that would precipitate a SemVer change, as described in the Conventional
+Commits Specification, will trigger [`release-please`](https://github.com/google-github-actions/release-please-action)
+to create a release candidate pull request. Once submitted, `release-please`
+will create a release.
+
+For tips on how to work with `release-please`, see its documentation.
+
+### Legal requirements
+
+In order to protect both you and ourselves, you will need to sign the
+[Contributor License Agreement](https://cla.developers.google.com/clas).
+
+You may have already signed it for other Google projects.

vendor/github.com/google/uuid/CONTRIBUTORS

@@ -0,0 +1,9 @@
+Paul Borman <borman@google.com>
+bmatsuo
+shawnps
+theory
+jboverfelt
+dsymonds
+cd1
+wallclockbuilder
+dansouza

vendor/github.com/google/uuid/LICENSE

@@ -0,0 +1,27 @@
+Copyright (c) 2009,2014 Google Inc. All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+   * Redistributions of source code must retain the above copyright
+notice, this list of conditions and the following disclaimer.
+   * Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the following disclaimer
+in the documentation and/or other materials provided with the
+distribution.
+   * Neither the name of Google Inc. nor the names of its
+contributors may be used to endorse or promote products derived from
+this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

vendor/github.com/google/uuid/README.md

@@ -0,0 +1,21 @@
+# uuid
+The uuid package generates and inspects UUIDs based on
+[RFC 4122](https://datatracker.ietf.org/doc/html/rfc4122)
+and DCE 1.1: Authentication and Security Services. 
+
+This package is based on the github.com/pborman/uuid package (previously named
+code.google.com/p/go-uuid).  It differs from these earlier packages in that
+a UUID is a 16 byte array rather than a byte slice.  One loss due to this
+change is the ability to represent an invalid UUID (vs a NIL UUID).
+
+###### Install
+```sh
+go get github.com/google/uuid
+```
+
+###### Documentation 
+[![Go Reference](https://pkg.go.dev/badge/github.com/google/uuid.svg)](https://pkg.go.dev/github.com/google/uuid)
+
+Full `go doc` style documentation for the package can be viewed online without
+installing this package by using the GoDoc site here: 
+http://pkg.go.dev/github.com/google/uuid

vendor/github.com/google/uuid/dce.go

@@ -0,0 +1,80 @@
+// Copyright 2016 Google Inc.  All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package uuid
+
+import (
+	"encoding/binary"
+	"fmt"
+	"os"
+)
+
+// A Domain represents a Version 2 domain
+type Domain byte
+
+// Domain constants for DCE Security (Version 2) UUIDs.
+const (
+	Person = Domain(0)
+	Group  = Domain(1)
+	Org    = Domain(2)
+)
+
+// NewDCESecurity returns a DCE Security (Version 2) UUID.
+//
+// The domain should be one of Person, Group or Org.
+// On a POSIX system the id should be the users UID for the Person
+// domain and the users GID for the Group.  The meaning of id for
+// the domain Org or on non-POSIX systems is site defined.
+//
+// For a given domain/id pair the same token may be returned for up to
+// 7 minutes and 10 seconds.
+func NewDCESecurity(domain Domain, id uint32) (UUID, error) {
+	uuid, err := NewUUID()
+	if err == nil {
+		uuid[6] = (uuid[6] & 0x0f) | 0x20 // Version 2
+		uuid[9] = byte(domain)
+		binary.BigEndian.PutUint32(uuid[0:], id)
+	}
+	return uuid, err
+}
+
+// NewDCEPerson returns a DCE Security (Version 2) UUID in the person
+// domain with the id returned by os.Getuid.
+//
+//  NewDCESecurity(Person, uint32(os.Getuid()))
+func NewDCEPerson() (UUID, error) {
+	return NewDCESecurity(Person, uint32(os.Getuid()))
+}
+
+// NewDCEGroup returns a DCE Security (Version 2) UUID in the group
+// domain with the id returned by os.Getgid.
+//
+//  NewDCESecurity(Group, uint32(os.Getgid()))
+func NewDCEGroup() (UUID, error) {
+	return NewDCESecurity(Group, uint32(os.Getgid()))
+}
+
+// Domain returns the domain for a Version 2 UUID.  Domains are only defined
+// for Version 2 UUIDs.
+func (uuid UUID) Domain() Domain {
+	return Domain(uuid[9])
+}
+
+// ID returns the id for a Version 2 UUID. IDs are only defined for Version 2
+// UUIDs.
+func (uuid UUID) ID() uint32 {
+	return binary.BigEndian.Uint32(uuid[0:4])
+}
+
+func (d Domain) String() string {
+	switch d {
+	case Person:
+		return "Person"
+	case Group:
+		return "Group"
+	case Org:
+		return "Org"
+	}
+	return fmt.Sprintf("Domain%d", int(d))
+}

vendor/github.com/google/uuid/doc.go

@@ -0,0 +1,12 @@
+// Copyright 2016 Google Inc.  All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Package uuid generates and inspects UUIDs.
+//
+// UUIDs are based on RFC 4122 and DCE 1.1: Authentication and Security
+// Services.
+//
+// A UUID is a 16 byte (128 bit) array.  UUIDs may be used as keys to
+// maps or compared directly.
+package uuid

vendor/github.com/google/uuid/hash.go

@@ -0,0 +1,59 @@
+// Copyright 2016 Google Inc.  All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package uuid
+
+import (
+	"crypto/md5"
+	"crypto/sha1"
+	"hash"
+)
+
+// Well known namespace IDs and UUIDs
+var (
+	NameSpaceDNS  = Must(Parse("6ba7b810-9dad-11d1-80b4-00c04fd430c8"))
+	NameSpaceURL  = Must(Parse("6ba7b811-9dad-11d1-80b4-00c04fd430c8"))
+	NameSpaceOID  = Must(Parse("6ba7b812-9dad-11d1-80b4-00c04fd430c8"))
+	NameSpaceX500 = Must(Parse("6ba7b814-9dad-11d1-80b4-00c04fd430c8"))
+	Nil           UUID // empty UUID, all zeros
+
+	// The Max UUID is special form of UUID that is specified to have all 128 bits set to 1.
+	Max = UUID{
+		0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+		0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+	}
+)
+
+// NewHash returns a new UUID derived from the hash of space concatenated with
+// data generated by h.  The hash should be at least 16 byte in length.  The
+// first 16 bytes of the hash are used to form the UUID.  The version of the
+// UUID will be the lower 4 bits of version.  NewHash is used to implement
+// NewMD5 and NewSHA1.
+func NewHash(h hash.Hash, space UUID, data []byte, version int) UUID {
+	h.Reset()
+	h.Write(space[:]) //nolint:errcheck
+	h.Write(data)     //nolint:errcheck
+	s := h.Sum(nil)
+	var uuid UUID
+	copy(uuid[:], s)
+	uuid[6] = (uuid[6] & 0x0f) | uint8((version&0xf)<<4)
+	uuid[8] = (uuid[8] & 0x3f) | 0x80 // RFC 4122 variant
+	return uuid
+}
+
+// NewMD5 returns a new MD5 (Version 3) UUID based on the
+// supplied name space and data.  It is the same as calling:
+//
+//  NewHash(md5.New(), space, data, 3)
+func NewMD5(space UUID, data []byte) UUID {
+	return NewHash(md5.New(), space, data, 3)
+}
+
+// NewSHA1 returns a new SHA1 (Version 5) UUID based on the
+// supplied name space and data.  It is the same as calling:
+//
+//  NewHash(sha1.New(), space, data, 5)
+func NewSHA1(space UUID, data []byte) UUID {
+	return NewHash(sha1.New(), space, data, 5)
+}

vendor/github.com/google/uuid/marshal.go

@@ -0,0 +1,38 @@
+// Copyright 2016 Google Inc.  All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package uuid
+
+import "fmt"
+
+// MarshalText implements encoding.TextMarshaler.
+func (uuid UUID) MarshalText() ([]byte, error) {
+	var js [36]byte
+	encodeHex(js[:], uuid)
+	return js[:], nil
+}
+
+// UnmarshalText implements encoding.TextUnmarshaler.
+func (uuid *UUID) UnmarshalText(data []byte) error {
+	id, err := ParseBytes(data)
+	if err != nil {
+		return err
+	}
+	*uuid = id
+	return nil
+}
+
+// MarshalBinary implements encoding.BinaryMarshaler.
+func (uuid UUID) MarshalBinary() ([]byte, error) {
+	return uuid[:], nil
+}
+
+// UnmarshalBinary implements encoding.BinaryUnmarshaler.
+func (uuid *UUID) UnmarshalBinary(data []byte) error {
+	if len(data) != 16 {
+		return fmt.Errorf("invalid UUID (got %d bytes)", len(data))
+	}
+	copy(uuid[:], data)
+	return nil
+}

vendor/github.com/google/uuid/node.go

@@ -0,0 +1,90 @@
+// Copyright 2016 Google Inc.  All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package uuid
+
+import (
+	"sync"
+)
+
+var (
+	nodeMu sync.Mutex
+	ifname string  // name of interface being used
+	nodeID [6]byte // hardware for version 1 UUIDs
+	zeroID [6]byte // nodeID with only 0's
+)
+
+// NodeInterface returns the name of the interface from which the NodeID was
+// derived.  The interface "user" is returned if the NodeID was set by
+// SetNodeID.
+func NodeInterface() string {
+	defer nodeMu.Unlock()
+	nodeMu.Lock()
+	return ifname
+}
+
+// SetNodeInterface selects the hardware address to be used for Version 1 UUIDs.
+// If name is "" then the first usable interface found will be used or a random
+// Node ID will be generated.  If a named interface cannot be found then false
+// is returned.
+//
+// SetNodeInterface never fails when name is "".
+func SetNodeInterface(name string) bool {
+	defer nodeMu.Unlock()
+	nodeMu.Lock()
+	return setNodeInterface(name)
+}
+
+func setNodeInterface(name string) bool {
+	iname, addr := getHardwareInterface(name) // null implementation for js
+	if iname != "" && addr != nil {
+		ifname = iname
+		copy(nodeID[:], addr)
+		return true
+	}
+
+	// We found no interfaces with a valid hardware address.  If name
+	// does not specify a specific interface generate a random Node ID
+	// (section 4.1.6)
+	if name == "" {
+		ifname = "random"
+		randomBits(nodeID[:])
+		return true
+	}
+	return false
+}
+
+// NodeID returns a slice of a copy of the current Node ID, setting the Node ID
+// if not already set.
+func NodeID() []byte {
+	defer nodeMu.Unlock()
+	nodeMu.Lock()
+	if nodeID == zeroID {
+		setNodeInterface("")
+	}
+	nid := nodeID
+	return nid[:]
+}
+
+// SetNodeID sets the Node ID to be used for Version 1 UUIDs.  The first 6 bytes
+// of id are used.  If id is less than 6 bytes then false is returned and the
+// Node ID is not set.
+func SetNodeID(id []byte) bool {
+	if len(id) < 6 {
+		return false
+	}
+	defer nodeMu.Unlock()
+	nodeMu.Lock()
+	copy(nodeID[:], id)
+	ifname = "user"
+	return true
+}
+
+// NodeID returns the 6 byte node id encoded in uuid.  It returns nil if uuid is
+// not valid.  The NodeID is only well defined for version 1 and 2 UUIDs.
+func (uuid UUID) NodeID() []byte {
+	var node [6]byte
+	copy(node[:], uuid[10:])
+	return node[:]
+}

vendor/github.com/google/uuid/node_js.go

@@ -0,0 +1,12 @@
+// Copyright 2017 Google Inc.  All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build js
+
+package uuid
+
+// getHardwareInterface returns nil values for the JS version of the code.
+// This removes the "net" dependency, because it is not used in the browser.
+// Using the "net" library inflates the size of the transpiled JS code by 673k bytes.
+func getHardwareInterface(name string) (string, []byte) { return "", nil }

vendor/github.com/google/uuid/node_net.go

@@ -0,0 +1,33 @@
+// Copyright 2017 Google Inc.  All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build !js
+
+package uuid
+
+import "net"
+
+var interfaces []net.Interface // cached list of interfaces
+
+// getHardwareInterface returns the name and hardware address of interface name.
+// If name is "" then the name and hardware address of one of the system's
+// interfaces is returned.  If no interfaces are found (name does not exist or
+// there are no interfaces) then "", nil is returned.
+//
+// Only addresses of at least 6 bytes are returned.
+func getHardwareInterface(name string) (string, []byte) {
+	if interfaces == nil {
+		var err error
+		interfaces, err = net.Interfaces()
+		if err != nil {
+			return "", nil
+		}
+	}
+	for _, ifs := range interfaces {
+		if len(ifs.HardwareAddr) >= 6 && (name == "" || name == ifs.Name) {
+			return ifs.Name, ifs.HardwareAddr
+		}
+	}
+	return "", nil
+}

vendor/github.com/google/uuid/null.go

@@ -0,0 +1,118 @@
+// Copyright 2021 Google Inc.  All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package uuid
+
+import (
+	"bytes"
+	"database/sql/driver"
+	"encoding/json"
+	"fmt"
+)
+
+var jsonNull = []byte("null")
+
+// NullUUID represents a UUID that may be null.
+// NullUUID implements the SQL driver.Scanner interface so
+// it can be used as a scan destination:
+//
+//  var u uuid.NullUUID
+//  err := db.QueryRow("SELECT name FROM foo WHERE id=?", id).Scan(&u)
+//  ...
+//  if u.Valid {
+//     // use u.UUID
+//  } else {
+//     // NULL value
+//  }
+//
+type NullUUID struct {
+	UUID  UUID
+	Valid bool // Valid is true if UUID is not NULL
+}
+
+// Scan implements the SQL driver.Scanner interface.
+func (nu *NullUUID) Scan(value interface{}) error {
+	if value == nil {
+		nu.UUID, nu.Valid = Nil, false
+		return nil
+	}
+
+	err := nu.UUID.Scan(value)
+	if err != nil {
+		nu.Valid = false
+		return err
+	}
+
+	nu.Valid = true
+	return nil
+}
+
+// Value implements the driver Valuer interface.
+func (nu NullUUID) Value() (driver.Value, error) {
+	if !nu.Valid {
+		return nil, nil
+	}
+	// Delegate to UUID Value function
+	return nu.UUID.Value()
+}
+
+// MarshalBinary implements encoding.BinaryMarshaler.
+func (nu NullUUID) MarshalBinary() ([]byte, error) {
+	if nu.Valid {
+		return nu.UUID[:], nil
+	}
+
+	return []byte(nil), nil
+}
+
+// UnmarshalBinary implements encoding.BinaryUnmarshaler.
+func (nu *NullUUID) UnmarshalBinary(data []byte) error {
+	if len(data) != 16 {
+		return fmt.Errorf("invalid UUID (got %d bytes)", len(data))
+	}
+	copy(nu.UUID[:], data)
+	nu.Valid = true
+	return nil
+}
+
+// MarshalText implements encoding.TextMarshaler.
+func (nu NullUUID) MarshalText() ([]byte, error) {
+	if nu.Valid {
+		return nu.UUID.MarshalText()
+	}
+
+	return jsonNull, nil
+}
+
+// UnmarshalText implements encoding.TextUnmarshaler.
+func (nu *NullUUID) UnmarshalText(data []byte) error {
+	id, err := ParseBytes(data)
+	if err != nil {
+		nu.Valid = false
+		return err
+	}
+	nu.UUID = id
+	nu.Valid = true
+	return nil
+}
+
+// MarshalJSON implements json.Marshaler.
+func (nu NullUUID) MarshalJSON() ([]byte, error) {
+	if nu.Valid {
+		return json.Marshal(nu.UUID)
+	}
+
+	return jsonNull, nil
+}
+
+// UnmarshalJSON implements json.Unmarshaler.
+func (nu *NullUUID) UnmarshalJSON(data []byte) error {
+	if bytes.Equal(data, jsonNull) {
+		*nu = NullUUID{}
+		return nil // valid null UUID
+	}
+	err := json.Unmarshal(data, &nu.UUID)
+	nu.Valid = err == nil
+	return err
+}

vendor/github.com/google/uuid/sql.go

@@ -0,0 +1,59 @@
+// Copyright 2016 Google Inc.  All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package uuid
+
+import (
+	"database/sql/driver"
+	"fmt"
+)
+
+// Scan implements sql.Scanner so UUIDs can be read from databases transparently.
+// Currently, database types that map to string and []byte are supported. Please
+// consult database-specific driver documentation for matching types.
+func (uuid *UUID) Scan(src interface{}) error {
+	switch src := src.(type) {
+	case nil:
+		return nil
+
+	case string:
+		// if an empty UUID comes from a table, we return a null UUID
+		if src == "" {
+			return nil
+		}
+
+		// see Parse for required string format
+		u, err := Parse(src)
+		if err != nil {
+			return fmt.Errorf("Scan: %v", err)
+		}
+
+		*uuid = u
+
+	case []byte:
+		// if an empty UUID comes from a table, we return a null UUID
+		if len(src) == 0 {
+			return nil
+		}
+
+		// assumes a simple slice of bytes if 16 bytes
+		// otherwise attempts to parse
+		if len(src) != 16 {
+			return uuid.Scan(string(src))
+		}
+		copy((*uuid)[:], src)
+
+	default:
+		return fmt.Errorf("Scan: unable to scan type %T into UUID", src)
+	}
+
+	return nil
+}
+
+// Value implements sql.Valuer so that UUIDs can be written to databases
+// transparently. Currently, UUIDs map to strings. Please consult
+// database-specific driver documentation for matching types.
+func (uuid UUID) Value() (driver.Value, error) {
+	return uuid.String(), nil
+}

vendor/github.com/google/uuid/time.go

@@ -0,0 +1,134 @@
+// Copyright 2016 Google Inc.  All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package uuid
+
+import (
+	"encoding/binary"
+	"sync"
+	"time"
+)
+
+// A Time represents a time as the number of 100's of nanoseconds since 15 Oct
+// 1582.
+type Time int64
+
+const (
+	lillian    = 2299160          // Julian day of 15 Oct 1582
+	unix       = 2440587          // Julian day of 1 Jan 1970
+	epoch      = unix - lillian   // Days between epochs
+	g1582      = epoch * 86400    // seconds between epochs
+	g1582ns100 = g1582 * 10000000 // 100s of a nanoseconds between epochs
+)
+
+var (
+	timeMu   sync.Mutex
+	lasttime uint64 // last time we returned
+	clockSeq uint16 // clock sequence for this run
+
+	timeNow = time.Now // for testing
+)
+
+// UnixTime converts t the number of seconds and nanoseconds using the Unix
+// epoch of 1 Jan 1970.
+func (t Time) UnixTime() (sec, nsec int64) {
+	sec = int64(t - g1582ns100)
+	nsec = (sec % 10000000) * 100
+	sec /= 10000000
+	return sec, nsec
+}
+
+// GetTime returns the current Time (100s of nanoseconds since 15 Oct 1582) and
+// clock sequence as well as adjusting the clock sequence as needed.  An error
+// is returned if the current time cannot be determined.
+func GetTime() (Time, uint16, error) {
+	defer timeMu.Unlock()
+	timeMu.Lock()
+	return getTime()
+}
+
+func getTime() (Time, uint16, error) {
+	t := timeNow()
+
+	// If we don't have a clock sequence already, set one.
+	if clockSeq == 0 {
+		setClockSequence(-1)
+	}
+	now := uint64(t.UnixNano()/100) + g1582ns100
+
+	// If time has gone backwards with this clock sequence then we
+	// increment the clock sequence
+	if now <= lasttime {
+		clockSeq = ((clockSeq + 1) & 0x3fff) | 0x8000
+	}
+	lasttime = now
+	return Time(now), clockSeq, nil
+}
+
+// ClockSequence returns the current clock sequence, generating one if not
+// already set.  The clock sequence is only used for Version 1 UUIDs.
+//
+// The uuid package does not use global static storage for the clock sequence or
+// the last time a UUID was generated.  Unless SetClockSequence is used, a new
+// random clock sequence is generated the first time a clock sequence is
+// requested by ClockSequence, GetTime, or NewUUID.  (section 4.2.1.1)
+func ClockSequence() int {
+	defer timeMu.Unlock()
+	timeMu.Lock()
+	return clockSequence()
+}
+
+func clockSequence() int {
+	if clockSeq == 0 {
+		setClockSequence(-1)
+	}
+	return int(clockSeq & 0x3fff)
+}
+
+// SetClockSequence sets the clock sequence to the lower 14 bits of seq.  Setting to
+// -1 causes a new sequence to be generated.
+func SetClockSequence(seq int) {
+	defer timeMu.Unlock()
+	timeMu.Lock()
+	setClockSequence(seq)
+}
+
+func setClockSequence(seq int) {
+	if seq == -1 {
+		var b [2]byte
+		randomBits(b[:]) // clock sequence
+		seq = int(b[0])<<8 | int(b[1])
+	}
+	oldSeq := clockSeq
+	clockSeq = uint16(seq&0x3fff) | 0x8000 // Set our variant
+	if oldSeq != clockSeq {
+		lasttime = 0
+	}
+}
+
+// Time returns the time in 100s of nanoseconds since 15 Oct 1582 encoded in
+// uuid.  The time is only defined for version 1, 2, 6 and 7 UUIDs.
+func (uuid UUID) Time() Time {
+	var t Time
+	switch uuid.Version() {
+	case 6:
+		time := binary.BigEndian.Uint64(uuid[:8]) // Ignore uuid[6] version b0110
+		t = Time(time)
+	case 7:
+		time := binary.BigEndian.Uint64(uuid[:8])
+		t = Time((time>>16)*10000 + g1582ns100)
+	default: // forward compatible
+		time := int64(binary.BigEndian.Uint32(uuid[0:4]))
+		time |= int64(binary.BigEndian.Uint16(uuid[4:6])) << 32
+		time |= int64(binary.BigEndian.Uint16(uuid[6:8])&0xfff) << 48
+		t = Time(time)
+	}
+	return t
+}
+
+// ClockSequence returns the clock sequence encoded in uuid.
+// The clock sequence is only well defined for version 1 and 2 UUIDs.
+func (uuid UUID) ClockSequence() int {
+	return int(binary.BigEndian.Uint16(uuid[8:10])) & 0x3fff
+}

vendor/github.com/google/uuid/util.go

@@ -0,0 +1,43 @@
+// Copyright 2016 Google Inc.  All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package uuid
+
+import (
+	"io"
+)
+
+// randomBits completely fills slice b with random data.
+func randomBits(b []byte) {
+	if _, err := io.ReadFull(rander, b); err != nil {
+		panic(err.Error()) // rand should never fail
+	}
+}
+
+// xvalues returns the value of a byte as a hexadecimal digit or 255.
+var xvalues = [256]byte{
+	255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
+	255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
+	255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
+	0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 255, 255, 255, 255, 255, 255,
+	255, 10, 11, 12, 13, 14, 15, 255, 255, 255, 255, 255, 255, 255, 255, 255,
+	255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
+	255, 10, 11, 12, 13, 14, 15, 255, 255, 255, 255, 255, 255, 255, 255, 255,
+	255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
+	255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
+	255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
+	255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
+	255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
+	255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
+	255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
+	255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
+	255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
+}
+
+// xtob converts hex characters x1 and x2 into a byte.
+func xtob(x1, x2 byte) (byte, bool) {
+	b1 := xvalues[x1]
+	b2 := xvalues[x2]
+	return (b1 << 4) | b2, b1 != 255 && b2 != 255
+}

vendor/github.com/google/uuid/uuid.go

@@ -0,0 +1,365 @@
+// Copyright 2018 Google Inc.  All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package uuid
+
+import (
+	"bytes"
+	"crypto/rand"
+	"encoding/hex"
+	"errors"
+	"fmt"
+	"io"
+	"strings"
+	"sync"
+)
+
+// A UUID is a 128 bit (16 byte) Universal Unique IDentifier as defined in RFC
+// 4122.
+type UUID [16]byte
+
+// A Version represents a UUID's version.
+type Version byte
+
+// A Variant represents a UUID's variant.
+type Variant byte
+
+// Constants returned by Variant.
+const (
+	Invalid   = Variant(iota) // Invalid UUID
+	RFC4122                   // The variant specified in RFC4122
+	Reserved                  // Reserved, NCS backward compatibility.
+	Microsoft                 // Reserved, Microsoft Corporation backward compatibility.
+	Future                    // Reserved for future definition.
+)
+
+const randPoolSize = 16 * 16
+
+var (
+	rander      = rand.Reader // random function
+	poolEnabled = false
+	poolMu      sync.Mutex
+	poolPos     = randPoolSize     // protected with poolMu
+	pool        [randPoolSize]byte // protected with poolMu
+)
+
+type invalidLengthError struct{ len int }
+
+func (err invalidLengthError) Error() string {
+	return fmt.Sprintf("invalid UUID length: %d", err.len)
+}
+
+// IsInvalidLengthError is matcher function for custom error invalidLengthError
+func IsInvalidLengthError(err error) bool {
+	_, ok := err.(invalidLengthError)
+	return ok
+}
+
+// Parse decodes s into a UUID or returns an error if it cannot be parsed.  Both
+// the standard UUID forms defined in RFC 4122
+// (xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx and
+// urn:uuid:xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx) are decoded.  In addition,
+// Parse accepts non-standard strings such as the raw hex encoding
+// xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx and 38 byte "Microsoft style" encodings,
+// e.g.  {xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx}.  Only the middle 36 bytes are
+// examined in the latter case.  Parse should not be used to validate strings as
+// it parses non-standard encodings as indicated above.
+func Parse(s string) (UUID, error) {
+	var uuid UUID
+	switch len(s) {
+	// xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx
+	case 36:
+
+	// urn:uuid:xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx
+	case 36 + 9:
+		if !strings.EqualFold(s[:9], "urn:uuid:") {
+			return uuid, fmt.Errorf("invalid urn prefix: %q", s[:9])
+		}
+		s = s[9:]
+
+	// {xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx}
+	case 36 + 2:
+		s = s[1:]
+
+	// xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
+	case 32:
+		var ok bool
+		for i := range uuid {
+			uuid[i], ok = xtob(s[i*2], s[i*2+1])
+			if !ok {
+				return uuid, errors.New("invalid UUID format")
+			}
+		}
+		return uuid, nil
+	default:
+		return uuid, invalidLengthError{len(s)}
+	}
+	// s is now at least 36 bytes long
+	// it must be of the form  xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx
+	if s[8] != '-' || s[13] != '-' || s[18] != '-' || s[23] != '-' {
+		return uuid, errors.New("invalid UUID format")
+	}
+	for i, x := range [16]int{
+		0, 2, 4, 6,
+		9, 11,
+		14, 16,
+		19, 21,
+		24, 26, 28, 30, 32, 34,
+	} {
+		v, ok := xtob(s[x], s[x+1])
+		if !ok {
+			return uuid, errors.New("invalid UUID format")
+		}
+		uuid[i] = v
+	}
+	return uuid, nil
+}
+
+// ParseBytes is like Parse, except it parses a byte slice instead of a string.
+func ParseBytes(b []byte) (UUID, error) {
+	var uuid UUID
+	switch len(b) {
+	case 36: // xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx
+	case 36 + 9: // urn:uuid:xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx
+		if !bytes.EqualFold(b[:9], []byte("urn:uuid:")) {
+			return uuid, fmt.Errorf("invalid urn prefix: %q", b[:9])
+		}
+		b = b[9:]
+	case 36 + 2: // {xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx}
+		b = b[1:]
+	case 32: // xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
+		var ok bool
+		for i := 0; i < 32; i += 2 {
+			uuid[i/2], ok = xtob(b[i], b[i+1])
+			if !ok {
+				return uuid, errors.New("invalid UUID format")
+			}
+		}
+		return uuid, nil
+	default:
+		return uuid, invalidLengthError{len(b)}
+	}
+	// s is now at least 36 bytes long
+	// it must be of the form  xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx
+	if b[8] != '-' || b[13] != '-' || b[18] != '-' || b[23] != '-' {
+		return uuid, errors.New("invalid UUID format")
+	}
+	for i, x := range [16]int{
+		0, 2, 4, 6,
+		9, 11,
+		14, 16,
+		19, 21,
+		24, 26, 28, 30, 32, 34,
+	} {
+		v, ok := xtob(b[x], b[x+1])
+		if !ok {
+			return uuid, errors.New("invalid UUID format")
+		}
+		uuid[i] = v
+	}
+	return uuid, nil
+}
+
+// MustParse is like Parse but panics if the string cannot be parsed.
+// It simplifies safe initialization of global variables holding compiled UUIDs.
+func MustParse(s string) UUID {
+	uuid, err := Parse(s)
+	if err != nil {
+		panic(`uuid: Parse(` + s + `): ` + err.Error())
+	}
+	return uuid
+}
+
+// FromBytes creates a new UUID from a byte slice. Returns an error if the slice
+// does not have a length of 16. The bytes are copied from the slice.
+func FromBytes(b []byte) (uuid UUID, err error) {
+	err = uuid.UnmarshalBinary(b)
+	return uuid, err
+}
+
+// Must returns uuid if err is nil and panics otherwise.
+func Must(uuid UUID, err error) UUID {
+	if err != nil {
+		panic(err)
+	}
+	return uuid
+}
+
+// Validate returns an error if s is not a properly formatted UUID in one of the following formats:
+//   xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx
+//   urn:uuid:xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx
+//   xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
+//   {xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx}
+// It returns an error if the format is invalid, otherwise nil.
+func Validate(s string) error {
+	switch len(s) {
+	// Standard UUID format
+	case 36:
+
+	// UUID with "urn:uuid:" prefix
+	case 36 + 9:
+		if !strings.EqualFold(s[:9], "urn:uuid:") {
+			return fmt.Errorf("invalid urn prefix: %q", s[:9])
+		}
+		s = s[9:]
+
+	// UUID enclosed in braces
+	case 36 + 2:
+		if s[0] != '{' || s[len(s)-1] != '}' {
+			return fmt.Errorf("invalid bracketed UUID format")
+		}
+		s = s[1 : len(s)-1]
+
+	// UUID without hyphens
+	case 32:
+		for i := 0; i < len(s); i += 2 {
+			_, ok := xtob(s[i], s[i+1])
+			if !ok {
+				return errors.New("invalid UUID format")
+			}
+		}
+
+	default:
+		return invalidLengthError{len(s)}
+	}
+
+	// Check for standard UUID format
+	if len(s) == 36 {
+		if s[8] != '-' || s[13] != '-' || s[18] != '-' || s[23] != '-' {
+			return errors.New("invalid UUID format")
+		}
+		for _, x := range []int{0, 2, 4, 6, 9, 11, 14, 16, 19, 21, 24, 26, 28, 30, 32, 34} {
+			if _, ok := xtob(s[x], s[x+1]); !ok {
+				return errors.New("invalid UUID format")
+			}
+		}
+	}
+
+	return nil
+}
+
+// String returns the string form of uuid, xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx
+// , or "" if uuid is invalid.
+func (uuid UUID) String() string {
+	var buf [36]byte
+	encodeHex(buf[:], uuid)
+	return string(buf[:])
+}
+
+// URN returns the RFC 2141 URN form of uuid,
+// urn:uuid:xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx,  or "" if uuid is invalid.
+func (uuid UUID) URN() string {
+	var buf [36 + 9]byte
+	copy(buf[:], "urn:uuid:")
+	encodeHex(buf[9:], uuid)
+	return string(buf[:])
+}
+
+func encodeHex(dst []byte, uuid UUID) {
+	hex.Encode(dst, uuid[:4])
+	dst[8] = '-'
+	hex.Encode(dst[9:13], uuid[4:6])
+	dst[13] = '-'
+	hex.Encode(dst[14:18], uuid[6:8])
+	dst[18] = '-'
+	hex.Encode(dst[19:23], uuid[8:10])
+	dst[23] = '-'
+	hex.Encode(dst[24:], uuid[10:])
+}
+
+// Variant returns the variant encoded in uuid.
+func (uuid UUID) Variant() Variant {
+	switch {
+	case (uuid[8] & 0xc0) == 0x80:
+		return RFC4122
+	case (uuid[8] & 0xe0) == 0xc0:
+		return Microsoft
+	case (uuid[8] & 0xe0) == 0xe0:
+		return Future
+	default:
+		return Reserved
+	}
+}
+
+// Version returns the version of uuid.
+func (uuid UUID) Version() Version {
+	return Version(uuid[6] >> 4)
+}
+
+func (v Version) String() string {
+	if v > 15 {
+		return fmt.Sprintf("BAD_VERSION_%d", v)
+	}
+	return fmt.Sprintf("VERSION_%d", v)
+}
+
+func (v Variant) String() string {
+	switch v {
+	case RFC4122:
+		return "RFC4122"
+	case Reserved:
+		return "Reserved"
+	case Microsoft:
+		return "Microsoft"
+	case Future:
+		return "Future"
+	case Invalid:
+		return "Invalid"
+	}
+	return fmt.Sprintf("BadVariant%d", int(v))
+}
+
+// SetRand sets the random number generator to r, which implements io.Reader.
+// If r.Read returns an error when the package requests random data then
+// a panic will be issued.
+//
+// Calling SetRand with nil sets the random number generator to the default
+// generator.
+func SetRand(r io.Reader) {
+	if r == nil {
+		rander = rand.Reader
+		return
+	}
+	rander = r
+}
+
+// EnableRandPool enables internal randomness pool used for Random
+// (Version 4) UUID generation. The pool contains random bytes read from
+// the random number generator on demand in batches. Enabling the pool
+// may improve the UUID generation throughput significantly.
+//
+// Since the pool is stored on the Go heap, this feature may be a bad fit
+// for security sensitive applications.
+//
+// Both EnableRandPool and DisableRandPool are not thread-safe and should
+// only be called when there is no possibility that New or any other
+// UUID Version 4 generation function will be called concurrently.
+func EnableRandPool() {
+	poolEnabled = true
+}
+
+// DisableRandPool disables the randomness pool if it was previously
+// enabled with EnableRandPool.
+//
+// Both EnableRandPool and DisableRandPool are not thread-safe and should
+// only be called when there is no possibility that New or any other
+// UUID Version 4 generation function will be called concurrently.
+func DisableRandPool() {
+	poolEnabled = false
+	defer poolMu.Unlock()
+	poolMu.Lock()
+	poolPos = randPoolSize
+}
+
+// UUIDs is a slice of UUID types.
+type UUIDs []UUID
+
+// Strings returns a string slice containing the string form of each UUID in uuids.
+func (uuids UUIDs) Strings() []string {
+	var uuidStrs = make([]string, len(uuids))
+	for i, uuid := range uuids {
+		uuidStrs[i] = uuid.String()
+	}
+	return uuidStrs
+}

vendor/github.com/google/uuid/version1.go

@@ -0,0 +1,44 @@
+// Copyright 2016 Google Inc.  All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package uuid
+
+import (
+	"encoding/binary"
+)
+
+// NewUUID returns a Version 1 UUID based on the current NodeID and clock
+// sequence, and the current time.  If the NodeID has not been set by SetNodeID
+// or SetNodeInterface then it will be set automatically.  If the NodeID cannot
+// be set NewUUID returns nil.  If clock sequence has not been set by
+// SetClockSequence then it will be set automatically.  If GetTime fails to
+// return the current NewUUID returns nil and an error.
+//
+// In most cases, New should be used.
+func NewUUID() (UUID, error) {
+	var uuid UUID
+	now, seq, err := GetTime()
+	if err != nil {
+		return uuid, err
+	}
+
+	timeLow := uint32(now & 0xffffffff)
+	timeMid := uint16((now >> 32) & 0xffff)
+	timeHi := uint16((now >> 48) & 0x0fff)
+	timeHi |= 0x1000 // Version 1
+
+	binary.BigEndian.PutUint32(uuid[0:], timeLow)
+	binary.BigEndian.PutUint16(uuid[4:], timeMid)
+	binary.BigEndian.PutUint16(uuid[6:], timeHi)
+	binary.BigEndian.PutUint16(uuid[8:], seq)
+
+	nodeMu.Lock()
+	if nodeID == zeroID {
+		setNodeInterface("")
+	}
+	copy(uuid[10:], nodeID[:])
+	nodeMu.Unlock()
+
+	return uuid, nil
+}

vendor/github.com/google/uuid/version4.go

@@ -0,0 +1,76 @@
+// Copyright 2016 Google Inc.  All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package uuid
+
+import "io"
+
+// New creates a new random UUID or panics.  New is equivalent to
+// the expression
+//
+//    uuid.Must(uuid.NewRandom())
+func New() UUID {
+	return Must(NewRandom())
+}
+
+// NewString creates a new random UUID and returns it as a string or panics.
+// NewString is equivalent to the expression
+//
+//    uuid.New().String()
+func NewString() string {
+	return Must(NewRandom()).String()
+}
+
+// NewRandom returns a Random (Version 4) UUID.
+//
+// The strength of the UUIDs is based on the strength of the crypto/rand
+// package.
+//
+// Uses the randomness pool if it was enabled with EnableRandPool.
+//
+// A note about uniqueness derived from the UUID Wikipedia entry:
+//
+//  Randomly generated UUIDs have 122 random bits.  One's annual risk of being
+//  hit by a meteorite is estimated to be one chance in 17 billion, that
+//  means the probability is about 0.00000000006 (6 × 10−11),
+//  equivalent to the odds of creating a few tens of trillions of UUIDs in a
+//  year and having one duplicate.
+func NewRandom() (UUID, error) {
+	if !poolEnabled {
+		return NewRandomFromReader(rander)
+	}
+	return newRandomFromPool()
+}
+
+// NewRandomFromReader returns a UUID based on bytes read from a given io.Reader.
+func NewRandomFromReader(r io.Reader) (UUID, error) {
+	var uuid UUID
+	_, err := io.ReadFull(r, uuid[:])
+	if err != nil {
+		return Nil, err
+	}
+	uuid[6] = (uuid[6] & 0x0f) | 0x40 // Version 4
+	uuid[8] = (uuid[8] & 0x3f) | 0x80 // Variant is 10
+	return uuid, nil
+}
+
+func newRandomFromPool() (UUID, error) {
+	var uuid UUID
+	poolMu.Lock()
+	if poolPos == randPoolSize {
+		_, err := io.ReadFull(rander, pool[:])
+		if err != nil {
+			poolMu.Unlock()
+			return Nil, err
+		}
+		poolPos = 0
+	}
+	copy(uuid[:], pool[poolPos:(poolPos+16)])
+	poolPos += 16
+	poolMu.Unlock()
+
+	uuid[6] = (uuid[6] & 0x0f) | 0x40 // Version 4
+	uuid[8] = (uuid[8] & 0x3f) | 0x80 // Variant is 10
+	return uuid, nil
+}

vendor/github.com/google/uuid/version6.go

@@ -0,0 +1,56 @@
+// Copyright 2023 Google Inc.  All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package uuid
+
+import "encoding/binary"
+
+// UUID version 6 is a field-compatible version of UUIDv1, reordered for improved DB locality.
+// It is expected that UUIDv6 will primarily be used in contexts where there are existing v1 UUIDs.
+// Systems that do not involve legacy UUIDv1 SHOULD consider using UUIDv7 instead.
+//
+// see https://datatracker.ietf.org/doc/html/draft-peabody-dispatch-new-uuid-format-03#uuidv6
+//
+// NewV6 returns a Version 6 UUID based on the current NodeID and clock
+// sequence, and the current time. If the NodeID has not been set by SetNodeID
+// or SetNodeInterface then it will be set automatically. If the NodeID cannot
+// be set NewV6 set NodeID is random bits automatically . If clock sequence has not been set by
+// SetClockSequence then it will be set automatically. If GetTime fails to
+// return the current NewV6 returns Nil and an error.
+func NewV6() (UUID, error) {
+	var uuid UUID
+	now, seq, err := GetTime()
+	if err != nil {
+		return uuid, err
+	}
+
+	/*
+	    0                   1                   2                   3
+	    0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+	   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+	   |                           time_high                           |
+	   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+	   |           time_mid            |      time_low_and_version     |
+	   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+	   |clk_seq_hi_res |  clk_seq_low  |         node (0-1)            |
+	   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+	   |                         node (2-5)                            |
+	   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+	*/
+
+	binary.BigEndian.PutUint64(uuid[0:], uint64(now))
+	binary.BigEndian.PutUint16(uuid[8:], seq)
+
+	uuid[6] = 0x60 | (uuid[6] & 0x0F)
+	uuid[8] = 0x80 | (uuid[8] & 0x3F)
+
+	nodeMu.Lock()
+	if nodeID == zeroID {
+		setNodeInterface("")
+	}
+	copy(uuid[10:], nodeID[:])
+	nodeMu.Unlock()
+
+	return uuid, nil
+}

vendor/github.com/google/uuid/version7.go

@@ -0,0 +1,104 @@
+// Copyright 2023 Google Inc.  All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package uuid
+
+import (
+	"io"
+)
+
+// UUID version 7 features a time-ordered value field derived from the widely
+// implemented and well known Unix Epoch timestamp source,
+// the number of milliseconds seconds since midnight 1 Jan 1970 UTC, leap seconds excluded.
+// As well as improved entropy characteristics over versions 1 or 6.
+//
+// see https://datatracker.ietf.org/doc/html/draft-peabody-dispatch-new-uuid-format-03#name-uuid-version-7
+//
+// Implementations SHOULD utilize UUID version 7 over UUID version 1 and 6 if possible.
+//
+// NewV7 returns a Version 7 UUID based on the current time(Unix Epoch).
+// Uses the randomness pool if it was enabled with EnableRandPool.
+// On error, NewV7 returns Nil and an error
+func NewV7() (UUID, error) {
+	uuid, err := NewRandom()
+	if err != nil {
+		return uuid, err
+	}
+	makeV7(uuid[:])
+	return uuid, nil
+}
+
+// NewV7FromReader returns a Version 7 UUID based on the current time(Unix Epoch).
+// it use NewRandomFromReader fill random bits.
+// On error, NewV7FromReader returns Nil and an error.
+func NewV7FromReader(r io.Reader) (UUID, error) {
+	uuid, err := NewRandomFromReader(r)
+	if err != nil {
+		return uuid, err
+	}
+
+	makeV7(uuid[:])
+	return uuid, nil
+}
+
+// makeV7 fill 48 bits time (uuid[0] - uuid[5]), set version b0111 (uuid[6])
+// uuid[8] already has the right version number (Variant is 10)
+// see function NewV7 and NewV7FromReader
+func makeV7(uuid []byte) {
+	/*
+		 0                   1                   2                   3
+		 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+		+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+		|                           unix_ts_ms                          |
+		+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+		|          unix_ts_ms           |  ver  |  rand_a (12 bit seq)  |
+		+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+		|var|                        rand_b                             |
+		+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+		|                            rand_b                             |
+		+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+	*/
+	_ = uuid[15] // bounds check
+
+	t, s := getV7Time()
+
+	uuid[0] = byte(t >> 40)
+	uuid[1] = byte(t >> 32)
+	uuid[2] = byte(t >> 24)
+	uuid[3] = byte(t >> 16)
+	uuid[4] = byte(t >> 8)
+	uuid[5] = byte(t)
+
+	uuid[6] = 0x70 | (0x0F & byte(s>>8))
+	uuid[7] = byte(s)
+}
+
+// lastV7time is the last time we returned stored as:
+//
+//	52 bits of time in milliseconds since epoch
+//	12 bits of (fractional nanoseconds) >> 8
+var lastV7time int64
+
+const nanoPerMilli = 1000000
+
+// getV7Time returns the time in milliseconds and nanoseconds / 256.
+// The returned (milli << 12 + seq) is guarenteed to be greater than
+// (milli << 12 + seq) returned by any previous call to getV7Time.
+func getV7Time() (milli, seq int64) {
+	timeMu.Lock()
+	defer timeMu.Unlock()
+
+	nano := timeNow().UnixNano()
+	milli = nano / nanoPerMilli
+	// Sequence number is between 0 and 3906 (nanoPerMilli>>8)
+	seq = (nano - milli*nanoPerMilli) >> 8
+	now := milli<<12 + seq
+	if now <= lastV7time {
+		now = lastV7time + 1
+		milli = now >> 12
+		seq = now & 0xfff
+	}
+	lastV7time = now
+	return milli, seq
+}

vendor/github.com/jbrukh/bayesian/LICENSE

@@ -0,0 +1,28 @@
+Copyright (c) 2011.  Jake Brukhman <jbrukh@gmail.com>
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions 
+are met:
+
+    1. Redistributions of source code must retain the above 
+       copyright notice, this list of conditions and the 
+       following disclaimer.
+    2. Redistributions in binary form must reproduce the above
+       copyright notice, this list of conditions and the following
+       disclaimer in the documentation and/or other materials 
+       provided with the distribution.
+    3. The name of the author may not be used to endorse or 
+       promote products derived from this software without 
+       specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
+ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
+GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE 
+OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, 
+EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

vendor/github.com/jbrukh/bayesian/README.md

@@ -0,0 +1,126 @@
+# Naive Bayesian Classification
+
+Perform naive Bayesian classification into an arbitrary number of classes on sets of strings. `bayesian` also supports term frequency-inverse document frequency calculations ([TF-IDF](https://www.wikiwand.com/en/Tf%E2%80%93idf)).
+
+Copyright (c) 2011-2017. Jake Brukhman. (jbrukh@gmail.com).
+All rights reserved.  See the LICENSE file for BSD-style license.
+
+------------
+
+## Background
+
+This is meant to be an low-entry barrier Go library for basic Bayesian classification. See code comments for a refresher on naive Bayesian classifiers, and please take some time to understand underflow edge cases as this otherwise may result in innacurate classifications.
+
+------------
+
+## Installation
+
+Using the go command:
+
+```shell
+go get github.com/jbrukh/bayesian
+go install !$
+```
+
+------------
+
+## Documentation
+
+See the GoPkgDoc documentation [here](https://godoc.org/github.com/jbrukh/bayesian).
+
+------------
+
+## Features
+
+- Conditional probability and "log-likelihood"-like scoring.
+- Underflow detection.
+- Simple persistence of classifiers.
+- Statistics.
+- TF-IDF support.
+
+------------
+
+## Example 1 (Simple Classification)
+
+To use the classifier, first you must create some classes
+and train it:
+
+```go
+import "github.com/jbrukh/bayesian"
+
+const (
+    Good bayesian.Class = "Good"
+    Bad  bayesian.Class = "Bad"
+)
+
+classifier := bayesian.NewClassifier(Good, Bad)
+goodStuff := []string{"tall", "rich", "handsome"}
+badStuff  := []string{"poor", "smelly", "ugly"}
+classifier.Learn(goodStuff, Good)
+classifier.Learn(badStuff,  Bad)
+```
+
+Then you can ascertain the scores of each class and
+the most likely class your data belongs to:
+
+```go
+scores, likely, _ := classifier.LogScores(
+                        []string{"tall", "girl"},
+                     )
+```
+
+Magnitude of the score indicates likelihood. Alternatively (but
+with some risk of float underflow), you can obtain actual probabilities:
+
+```go
+probs, likely, _ := classifier.ProbScores(
+                        []string{"tall", "girl"},
+                     )
+```
+
+## Example 2 (TF-IDF Support)
+
+To use the TF-IDF classifier, first you must create some classes
+and train it and you need to call ConvertTermsFreqToTfIdf() AFTER training
+and before calling classification methods such as `LogScores`, `SafeProbScores`, and `ProbScores`)
+
+```go
+import "github.com/jbrukh/bayesian"
+
+const (
+    Good bayesian.Class = "Good"
+    Bad bayesian.Class = "Bad"
+)
+
+// Create a classifier with TF-IDF support.
+classifier := bayesian.NewClassifierTfIdf(Good, Bad)
+
+goodStuff := []string{"tall", "rich", "handsome"}
+badStuff  := []string{"poor", "smelly", "ugly"}
+
+classifier.Learn(goodStuff, Good)
+classifier.Learn(badStuff,  Bad)
+
+// Required
+classifier.ConvertTermsFreqToTfIdf()
+```
+
+Then you can ascertain the scores of each class and
+the most likely class your data belongs to:
+
+```go
+scores, likely, _ := classifier.LogScores(
+    []string{"tall", "girl"},
+)
+```
+
+Magnitude of the score indicates likelihood. Alternatively (but
+with some risk of float underflow), you can obtain actual probabilities:
+
+```go
+probs, likely, _ := classifier.ProbScores(
+    []string{"tall", "girl"},
+)
+```
+
+Use wisely.

vendor/github.com/jbrukh/bayesian/bayesian.go

@@ -0,0 +1,557 @@
+package bayesian
+
+import (
+	"encoding/gob"
+	"errors"
+	"io"
+	"math"
+	"os"
+	"path/filepath"
+	"sync/atomic"
+)
+
+// defaultProb is the tiny non-zero probability that a word
+// we have not seen before appears in the class.
+const defaultProb = 0.00000000001
+
+// ErrUnderflow is returned when an underflow is detected.
+var ErrUnderflow = errors.New("possible underflow detected")
+
+// Class defines a class that the classifier will filter:
+// C = {C_1, ..., C_n}. You should define your classes as a
+// set of constants, for example as follows:
+//
+//    const (
+//        Good Class = "Good"
+//        Bad Class = "Bad
+//    )
+//
+// Class values should be unique.
+type Class string
+
+// Classifier implements the Naive Bayesian Classifier.
+type Classifier struct {
+	Classes         []Class
+	learned         int   // docs learned
+	seen            int32 // docs seen
+	datas           map[Class]*classData
+	tfIdf           bool
+	DidConvertTfIdf bool // we can't classify a TF-IDF classifier if we haven't yet
+	// called ConverTermsFreqToTfIdf
+}
+
+// serializableClassifier represents a container for
+// Classifier objects whose fields are modifiable by
+// reflection and are therefore writeable by gob.
+type serializableClassifier struct {
+	Classes         []Class
+	Learned         int
+	Seen            int
+	Datas           map[Class]*classData
+	TfIdf           bool
+	DidConvertTfIdf bool
+}
+
+// classData holds the frequency data for words in a
+// particular class. In the future, we may replace this
+// structure with a trie-like structure for more
+// efficient storage.
+type classData struct {
+	Freqs   map[string]float64
+	FreqTfs map[string][]float64
+	Total   int
+}
+
+// newClassData creates a new empty classData node.
+func newClassData() *classData {
+	return &classData{
+		Freqs:   make(map[string]float64),
+		FreqTfs: make(map[string][]float64),
+	}
+}
+
+// getWordProb returns P(W|C_j) -- the probability of seeing
+// a particular word W in a document of this class.
+func (d *classData) getWordProb(word string) float64 {
+	value, ok := d.Freqs[word]
+	if !ok {
+		return defaultProb
+	}
+	return float64(value) / float64(d.Total)
+}
+
+// getWordsProb returns P(D|C_j) -- the probability of seeing
+// this set of words in a document of this class.
+//
+// Note that words should not be empty, and this method of
+// calulation is prone to underflow if there are many words
+// and their individual probabilties are small.
+func (d *classData) getWordsProb(words []string) (prob float64) {
+	prob = 1
+	for _, word := range words {
+		prob *= d.getWordProb(word)
+	}
+	return
+}
+
+// NewClassifierTfIdf returns a new classifier. The classes provided
+// should be at least 2 in number and unique, or this method will
+// panic.
+func NewClassifierTfIdf(classes ...Class) (c *Classifier) {
+	n := len(classes)
+
+	// check size
+	if n < 2 {
+		panic("provide at least two classes")
+	}
+
+	// check uniqueness
+	check := make(map[Class]bool, n)
+	for _, class := range classes {
+		check[class] = true
+	}
+	if len(check) != n {
+		panic("classes must be unique")
+	}
+	// create the classifier
+	c = &Classifier{
+		Classes: classes,
+		datas:   make(map[Class]*classData, n),
+		tfIdf:   true,
+	}
+	for _, class := range classes {
+		c.datas[class] = newClassData()
+	}
+	return
+}
+
+// NewClassifier returns a new classifier. The classes provided
+// should be at least 2 in number and unique, or this method will
+// panic.
+func NewClassifier(classes ...Class) (c *Classifier) {
+	n := len(classes)
+
+	// check size
+	if n < 2 {
+		panic("provide at least two classes")
+	}
+
+	// check uniqueness
+	check := make(map[Class]bool, n)
+	for _, class := range classes {
+		check[class] = true
+	}
+	if len(check) != n {
+		panic("classes must be unique")
+	}
+	// create the classifier
+	c = &Classifier{
+		Classes:         classes,
+		datas:           make(map[Class]*classData, n),
+		tfIdf:           false,
+		DidConvertTfIdf: false,
+	}
+	for _, class := range classes {
+		c.datas[class] = newClassData()
+	}
+	return
+}
+
+// NewClassifierFromFile loads an existing classifier from
+// file. The classifier was previously saved with a call
+// to c.WriteToFile(string).
+func NewClassifierFromFile(name string) (c *Classifier, err error) {
+	file, err := os.Open(name)
+	if err != nil {
+		return nil, err
+	}
+	defer file.Close()
+
+	return NewClassifierFromReader(file)
+}
+
+// NewClassifierFromReader: This actually does the deserializing of a Gob encoded classifier
+func NewClassifierFromReader(r io.Reader) (c *Classifier, err error) {
+	dec := gob.NewDecoder(r)
+	w := new(serializableClassifier)
+	err = dec.Decode(w)
+
+	return &Classifier{w.Classes, w.Learned, int32(w.Seen), w.Datas, w.TfIdf, w.DidConvertTfIdf}, err
+}
+
+// getPriors returns the prior probabilities for the
+// classes provided -- P(C_j).
+//
+// TODO: There is a way to smooth priors, currently
+// not implemented here.
+func (c *Classifier) getPriors() (priors []float64) {
+	n := len(c.Classes)
+	priors = make([]float64, n, n)
+	sum := 0
+	for index, class := range c.Classes {
+		total := c.datas[class].Total
+		priors[index] = float64(total)
+		sum += total
+	}
+	if sum != 0 {
+		for i := 0; i < n; i++ {
+			priors[i] /= float64(sum)
+		}
+	}
+	return
+}
+
+// Learned returns the number of documents ever learned
+// in the lifetime of this classifier.
+func (c *Classifier) Learned() int {
+	return c.learned
+}
+
+// Seen returns the number of documents ever classified
+// in the lifetime of this classifier.
+func (c *Classifier) Seen() int {
+	return int(atomic.LoadInt32(&c.seen))
+}
+
+
+// IsTfIdf returns true if we are a classifier of type TfIdf
+func (c *Classifier) IsTfIdf() bool {
+	return c.tfIdf
+}
+
+// WordCount returns the number of words counted for
+// each class in the lifetime of the classifier.
+func (c *Classifier) WordCount() (result []int) {
+	result = make([]int, len(c.Classes))
+	for inx, class := range c.Classes {
+		data := c.datas[class]
+		result[inx] = data.Total
+	}
+	return
+}
+
+// Observe should be used when word-frequencies have been already been learned
+// externally (e.g., hadoop)
+func (c *Classifier) Observe(word string, count int, which Class) {
+	data := c.datas[which]
+	data.Freqs[word] += float64(count)
+	data.Total += count
+}
+
+// Learn will accept new training documents for
+// supervised learning.
+func (c *Classifier) Learn(document []string, which Class) {
+
+	// If we are a tfidf classifier we first need to get terms as
+	// terms frequency and store that to work out the idf part later
+	// in ConvertToIDF().
+	if c.tfIdf {
+		if c.DidConvertTfIdf {
+			panic("Cannot call ConvertTermsFreqToTfIdf more than once. Reset and relearn to reconvert.")
+		}
+
+		// Term Frequency: word count in document / document length
+		docTf := make(map[string]float64)
+		for _, word := range document {
+			docTf[word]++
+		}
+
+		docLen := float64(len(document))
+
+		for wIndex, wCount := range docTf {
+			docTf[wIndex] = wCount / docLen
+			// add the TF sample, after training we can get IDF values.
+			c.datas[which].FreqTfs[wIndex] = append(c.datas[which].FreqTfs[wIndex], docTf[wIndex])
+		}
+
+	}
+
+	data := c.datas[which]
+	for _, word := range document {
+		data.Freqs[word]++
+		data.Total++
+	}
+	c.learned++
+}
+
+// ConvertTermsFreqToTfIdf uses all the TF samples for the class and converts
+// them to TF-IDF https://en.wikipedia.org/wiki/Tf%E2%80%93idf
+// once we have finished learning all the classes and have the totals.
+func (c *Classifier) ConvertTermsFreqToTfIdf() {
+
+	if c.DidConvertTfIdf {
+		panic("Cannot call ConvertTermsFreqToTfIdf more than once. Reset and relearn to reconvert.")
+	}
+
+	for className := range c.datas {
+
+		for wIndex := range c.datas[className].FreqTfs {
+			tfIdfAdder := float64(0)
+
+			for tfSampleIndex := range c.datas[className].FreqTfs[wIndex] {
+
+				// we always want a possitive TF-IDF score.
+				tf := c.datas[className].FreqTfs[wIndex][tfSampleIndex]
+				c.datas[className].FreqTfs[wIndex][tfSampleIndex] = math.Log1p(tf) * math.Log1p(float64(c.learned)/float64(c.datas[className].Total))
+				tfIdfAdder += c.datas[className].FreqTfs[wIndex][tfSampleIndex]
+			}
+			// convert the 'counts' to TF-IDF's
+			c.datas[className].Freqs[wIndex] = tfIdfAdder
+		}
+
+	}
+
+	// sanity check
+	c.DidConvertTfIdf = true
+
+}
+
+// LogScores produces "log-likelihood"-like scores that can
+// be used to classify documents into classes.
+//
+// The value of the score is proportional to the likelihood,
+// as determined by the classifier, that the given document
+// belongs to the given class. This is true even when scores
+// returned are negative, which they will be (since we are
+// taking logs of probabilities).
+//
+// The index j of the score corresponds to the class given
+// by c.Classes[j].
+//
+// Additionally returned are "inx" and "strict" values. The
+// inx corresponds to the maximum score in the array. If more
+// than one of the scores holds the maximum values, then
+// strict is false.
+//
+// Unlike c.Probabilities(), this function is not prone to
+// floating point underflow and is relatively safe to use.
+func (c *Classifier) LogScores(document []string) (scores []float64, inx int, strict bool) {
+	if c.tfIdf && !c.DidConvertTfIdf {
+		panic("Using a TF-IDF classifier. Please call ConvertTermsFreqToTfIdf before calling LogScores.")
+	}
+
+	n := len(c.Classes)
+	scores = make([]float64, n, n)
+	priors := c.getPriors()
+
+	// calculate the score for each class
+	for index, class := range c.Classes {
+		data := c.datas[class]
+		// c is the sum of the logarithms
+		// as outlined in the refresher
+		score := math.Log(priors[index])
+		for _, word := range document {
+			score += math.Log(data.getWordProb(word))
+		}
+		scores[index] = score
+	}
+	inx, strict = findMax(scores)
+	atomic.AddInt32(&c.seen, 1)
+	return scores, inx, strict
+}
+
+// ProbScores works the same as LogScores, but delivers
+// actual probabilities as discussed above. Note that float64
+// underflow is possible if the word list contains too
+// many words that have probabilities very close to 0.
+//
+// Notes on underflow: underflow is going to occur when you're
+// trying to assess large numbers of words that you have
+// never seen before. Depending on the application, this
+// may or may not be a concern. Consider using SafeProbScores()
+// instead.
+func (c *Classifier) ProbScores(doc []string) (scores []float64, inx int, strict bool) {
+	if c.tfIdf && !c.DidConvertTfIdf {
+		panic("Using a TF-IDF classifier. Please call ConvertTermsFreqToTfIdf before calling ProbScores.")
+	}
+	n := len(c.Classes)
+	scores = make([]float64, n, n)
+	priors := c.getPriors()
+	sum := float64(0)
+	// calculate the score for each class
+	for index, class := range c.Classes {
+		data := c.datas[class]
+		// c is the sum of the logarithms
+		// as outlined in the refresher
+		score := priors[index]
+		for _, word := range doc {
+			score *= data.getWordProb(word)
+		}
+		scores[index] = score
+		sum += score
+	}
+	for i := 0; i < n; i++ {
+		scores[i] /= sum
+	}
+	inx, strict = findMax(scores)
+	atomic.AddInt32(&c.seen, 1)
+	return scores, inx, strict
+}
+
+// SafeProbScores works the same as ProbScores, but is
+// able to detect underflow in those cases where underflow
+// results in the reverse classification. If an underflow is detected,
+// this method returns an ErrUnderflow, allowing the user to deal with it as
+// necessary. Note that underflow, under certain rare circumstances,
+// may still result in incorrect probabilities being returned,
+// but this method guarantees that all error-less invokations
+// are properly classified.
+//
+// Underflow detection is more costly because it also
+// has to make additional log score calculations.
+func (c *Classifier) SafeProbScores(doc []string) (scores []float64, inx int, strict bool, err error) {
+	if c.tfIdf && !c.DidConvertTfIdf {
+		panic("Using a TF-IDF classifier. Please call ConvertTermsFreqToTfIdf before calling SafeProbScores.")
+	}
+
+	n := len(c.Classes)
+	scores = make([]float64, n, n)
+	logScores := make([]float64, n, n)
+	priors := c.getPriors()
+	sum := float64(0)
+	// calculate the score for each class
+	for index, class := range c.Classes {
+		data := c.datas[class]
+		// c is the sum of the logarithms
+		// as outlined in the refresher
+		score := priors[index]
+		logScore := math.Log(priors[index])
+		for _, word := range doc {
+			p := data.getWordProb(word)
+			score *= p
+			logScore += math.Log(p)
+		}
+		scores[index] = score
+		logScores[index] = logScore
+		sum += score
+	}
+	for i := 0; i < n; i++ {
+		scores[i] /= sum
+	}
+	inx, strict = findMax(scores)
+	logInx, logStrict := findMax(logScores)
+
+	// detect underflow -- the size
+	// relation between scores and logScores
+	// must be preserved or something is wrong
+	if inx != logInx || strict != logStrict {
+		err = ErrUnderflow
+	}
+	atomic.AddInt32(&c.seen, 1)
+	return scores, inx, strict, err
+}
+
+// WordFrequencies returns a matrix of word frequencies that currently
+// exist in the classifier for each class state for the given input
+// words. In other words, if you obtain the frequencies
+//
+//    freqs := c.WordFrequencies(/* [j]string */)
+//
+// then the expression freq[i][j] represents the frequency of the j-th
+// word within the i-th class.
+func (c *Classifier) WordFrequencies(words []string) (freqMatrix [][]float64) {
+	n, l := len(c.Classes), len(words)
+	freqMatrix = make([][]float64, n)
+	for i := range freqMatrix {
+		arr := make([]float64, l)
+		data := c.datas[c.Classes[i]]
+		for j := range arr {
+			arr[j] = data.getWordProb(words[j])
+		}
+		freqMatrix[i] = arr
+	}
+	return
+}
+
+// WordsByClass returns a map of words and their probability of
+// appearing in the given class.
+func (c *Classifier) WordsByClass(class Class) (freqMap map[string]float64) {
+	freqMap = make(map[string]float64)
+	for word, cnt := range c.datas[class].Freqs {
+		freqMap[word] = float64(cnt) / float64(c.datas[class].Total)
+	}
+
+	return freqMap
+}
+
+
+// WriteToFile serializes this classifier to a file.
+func (c *Classifier) WriteToFile(name string) (err error) {
+	file, err := os.OpenFile(name, os.O_WRONLY|os.O_CREATE, 0644)
+	if err != nil {
+		return err
+	}
+	defer file.Close()
+
+	return c.WriteTo(file)
+}
+
+// WriteClassesToFile writes all classes to files.
+func (c *Classifier) WriteClassesToFile(rootPath string) (err error) {
+	for name := range c.datas {
+		c.WriteClassToFile(name, rootPath)
+	}
+	return
+}
+
+// WriteClassToFile writes a single class to file.
+func (c *Classifier) WriteClassToFile(name Class, rootPath string) (err error) {
+	data := c.datas[name]
+	fileName := filepath.Join(rootPath, string(name))
+	file, err := os.OpenFile(fileName, os.O_WRONLY|os.O_CREATE, 0644)
+	if err != nil {
+		return err
+	}
+	defer file.Close()
+
+	enc := gob.NewEncoder(file)
+	err = enc.Encode(data)
+	return
+}
+
+
+// WriteTo serializes this classifier to GOB and write to Writer.
+func (c *Classifier) WriteTo(w io.Writer) (err error) {
+	enc := gob.NewEncoder(w)
+	err = enc.Encode(&serializableClassifier{c.Classes, c.learned, int(c.seen), c.datas, c.tfIdf, c.DidConvertTfIdf})
+
+	return
+}
+
+// ReadClassFromFile loads existing class data from a
+// file.
+func (c *Classifier) ReadClassFromFile(class Class, location string) (err error) {
+	fileName := filepath.Join(location, string(class))
+	file, err := os.Open(fileName)
+
+	if err != nil {
+		return err
+	}
+	defer file.Close()
+
+	dec := gob.NewDecoder(file)
+	w := new(classData)
+	err = dec.Decode(w)
+
+	c.learned++
+	c.datas[class] = w
+	return
+}
+
+// findMax finds the maximum of a set of scores; if the
+// maximum is strict -- that is, it is the single unique
+// maximum from the set -- then strict has return value
+// true. Otherwise it is false.
+func findMax(scores []float64) (inx int, strict bool) {
+	inx = 0
+	strict = true
+	for i := 1; i < len(scores); i++ {
+		if scores[inx] < scores[i] {
+			inx = i
+			strict = true
+		} else if scores[inx] == scores[i] {
+			strict = false
+		}
+	}
+	return
+}

vendor/github.com/jbrukh/bayesian/doc.go

@@ -0,0 +1,53 @@
+/*Package bayesian is a Naive Bayesian Classifier
+  Jake Brukhman <jbrukh@gmail.com>
+
+  BAYESIAN CLASSIFICATION REFRESHER: suppose you have a set
+  of classes (e.g. categories) C := {C_1, ..., C_n}, and a
+  document D consisting of words D := {W_1, ..., W_k}.
+  We wish to ascertain the probability that the document
+  belongs to some class C_j given some set of training data
+  associating documents and classes.
+
+  By Bayes' Theorem, we have that
+
+    P(C_j|D) = P(D|C_j)*P(C_j)/P(D).
+
+  The LHS is the probability that the document belongs to class
+  C_j given the document itself (by which is meant, in practice,
+  the word frequencies occurring in this document), and our program
+  will calculate this probability for each j and spit out the
+  most likely class for this document.
+
+  P(C_j) is referred to as the "prior" probability, or the
+  probability that a document belongs to C_j in general, without
+  seeing the document first. P(D|C_j) is the probability of seeing
+  such a document, given that it belongs to C_j. Here, by assuming
+  that words appear independently in documents (this being the
+  "naive" assumption), we can estimate
+
+    P(D|C_j) ~= P(W_1|C_j)*...*P(W_k|C_j)
+
+  where P(W_i|C_j) is the probability of seeing the given word
+  in a document of the given class. Finally, P(D) can be seen as
+  merely a scaling factor and is not strictly relevant to
+  classificiation, unless you want to normalize the resulting
+  scores and actually see probabilities. In this case, note that
+
+    P(D) = SUM_j(P(D|C_j)*P(C_j))
+
+  One practical issue with performing these calculations is the
+  possibility of float64 underflow when calculating P(D|C_j), as
+  individual word probabilities can be arbitrarily small, and
+  a document can have an arbitrarily large number of them. A
+  typical method for dealing with this case is to transform the
+  probability to the log domain and perform additions instead
+  of multiplications:
+
+    log P(C_j|D) ~ log(P(C_j)) + SUM_i(log P(W_i|C_j))
+
+  where i = 1, ..., k. Note that by doing this, we are discarding
+  the scaling factor P(D) and our scores are no longer
+  probabilities; however, the monotonic relationship of the
+  scores is preserved by the log function.
+*/
+package bayesian

vendor/github.com/jbrukh/bayesian/todo.txt

@@ -0,0 +1,3 @@
+- revisit underflow detection
+- add optional smoothing for frequencies
+- test with drone.io

vendor/golang.org/x/crypto/LICENSE

@@ -1,4 +1,4 @@
-Copyright (c) 2009 The Go Authors. All rights reserved.
+Copyright 2009 The Go Authors.
 
 Redistribution and use in source and binary forms, with or without
 modification, are permitted provided that the following conditions are
@@ -10,7 +10,7 @@ notice, this list of conditions and the following disclaimer.
 copyright notice, this list of conditions and the following disclaimer
 in the documentation and/or other materials provided with the
 distribution.
-   * Neither the name of Google Inc. nor the names of its
+   * Neither the name of Google LLC nor the names of its
 contributors may be used to endorse or promote products derived from
 this software without specific prior written permission.
 

vendor/golang.org/x/crypto/pbkdf2/pbkdf2.go

@@ -16,7 +16,7 @@ Hash Functions SHA-1, SHA-224, SHA-256, SHA-384 and SHA-512 for HMAC. To
 choose, you can pass the `New` functions from the different SHA packages to
 pbkdf2.Key.
 */
-package pbkdf2 // import "golang.org/x/crypto/pbkdf2"
+package pbkdf2
 
 import (
 	"crypto/hmac"

vendor/golang.org/x/exp/LICENSE

@@ -1,4 +1,4 @@
-Copyright (c) 2009 The Go Authors. All rights reserved.
+Copyright 2009 The Go Authors.
 
 Redistribution and use in source and binary forms, with or without
 modification, are permitted provided that the following conditions are
@@ -10,7 +10,7 @@ notice, this list of conditions and the following disclaimer.
 copyright notice, this list of conditions and the following disclaimer
 in the documentation and/or other materials provided with the
 distribution.
-   * Neither the name of Google Inc. nor the names of its
+   * Neither the name of Google LLC nor the names of its
 contributors may be used to endorse or promote products derived from
 this software without specific prior written permission.
 

vendor/golang.org/x/exp/constraints/constraints.go

@@ -1,50 +0,0 @@
-// Copyright 2021 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// Package constraints defines a set of useful constraints to be used
-// with type parameters.
-package constraints
-
-// Signed is a constraint that permits any signed integer type.
-// If future releases of Go add new predeclared signed integer types,
-// this constraint will be modified to include them.
-type Signed interface {
-	~int | ~int8 | ~int16 | ~int32 | ~int64
-}
-
-// Unsigned is a constraint that permits any unsigned integer type.
-// If future releases of Go add new predeclared unsigned integer types,
-// this constraint will be modified to include them.
-type Unsigned interface {
-	~uint | ~uint8 | ~uint16 | ~uint32 | ~uint64 | ~uintptr
-}
-
-// Integer is a constraint that permits any integer type.
-// If future releases of Go add new predeclared integer types,
-// this constraint will be modified to include them.
-type Integer interface {
-	Signed | Unsigned
-}
-
-// Float is a constraint that permits any floating-point type.
-// If future releases of Go add new predeclared floating-point types,
-// this constraint will be modified to include them.
-type Float interface {
-	~float32 | ~float64
-}
-
-// Complex is a constraint that permits any complex numeric type.
-// If future releases of Go add new predeclared complex numeric types,
-// this constraint will be modified to include them.
-type Complex interface {
-	~complex64 | ~complex128
-}
-
-// Ordered is a constraint that permits any ordered type: any type
-// that supports the operators < <= >= >.
-// If future releases of Go add new ordered types,
-// this constraint will be modified to include them.
-type Ordered interface {
-	Integer | Float | ~string
-}

vendor/golang.org/x/exp/slices/cmp.go

@@ -1,44 +0,0 @@
-// Copyright 2023 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package slices
-
-import "golang.org/x/exp/constraints"
-
-// min is a version of the predeclared function from the Go 1.21 release.
-func min[T constraints.Ordered](a, b T) T {
-	if a < b || isNaN(a) {
-		return a
-	}
-	return b
-}
-
-// max is a version of the predeclared function from the Go 1.21 release.
-func max[T constraints.Ordered](a, b T) T {
-	if a > b || isNaN(a) {
-		return a
-	}
-	return b
-}
-
-// cmpLess is a copy of cmp.Less from the Go 1.21 release.
-func cmpLess[T constraints.Ordered](x, y T) bool {
-	return (isNaN(x) && !isNaN(y)) || x < y
-}
-
-// cmpCompare is a copy of cmp.Compare from the Go 1.21 release.
-func cmpCompare[T constraints.Ordered](x, y T) int {
-	xNaN := isNaN(x)
-	yNaN := isNaN(y)
-	if xNaN && yNaN {
-		return 0
-	}
-	if xNaN || x < y {
-		return -1
-	}
-	if yNaN || x > y {
-		return +1
-	}
-	return 0
-}

vendor/golang.org/x/exp/slices/slices.go

@@ -6,9 +6,8 @@
 package slices
 
 import (
-	"unsafe"
+	"cmp"
-
+	"slices"
-	"golang.org/x/exp/constraints"
 )
 
 // Equal reports whether two slices are equal: the same length and all
@@ -16,16 +15,10 @@ import (
 // Otherwise, the elements are compared in increasing index order, and the
 // comparison stops at the first unequal pair.
 // Floating point NaNs are not considered equal.
+//
+//go:fix inline
 func Equal[S ~[]E, E comparable](s1, s2 S) bool {
-	if len(s1) != len(s2) {
+	return slices.Equal(s1, s2)
-		return false
-	}
-	for i := range s1 {
-		if s1[i] != s2[i] {
-			return false
-		}
-	}
-	return true
 }
 
 // EqualFunc reports whether two slices are equal using an equality
@@ -33,17 +26,10 @@ func Equal[S ~[]E, E comparable](s1, s2 S) bool {
 // EqualFunc returns false. Otherwise, the elements are compared in
 // increasing index order, and the comparison stops at the first index
 // for which eq returns false.
+//
+//go:fix inline
 func EqualFunc[S1 ~[]E1, S2 ~[]E2, E1, E2 any](s1 S1, s2 S2, eq func(E1, E2) bool) bool {
-	if len(s1) != len(s2) {
+	return slices.EqualFunc(s1, s2, eq)
-		return false
-	}
-	for i, v1 := range s1 {
-		v2 := s2[i]
-		if !eq(v1, v2) {
-			return false
-		}
-	}
-	return true
 }
 
 // Compare compares the elements of s1 and s2, using [cmp.Compare] on each pair
@@ -53,20 +39,10 @@ func EqualFunc[S1 ~[]E1, S2 ~[]E2, E1, E2 any](s1 S1, s2 S2, eq func(E1, E2) boo
 // If both slices are equal until one of them ends, the shorter slice is
 // considered less than the longer one.
 // The result is 0 if s1 == s2, -1 if s1 < s2, and +1 if s1 > s2.
-func Compare[S ~[]E, E constraints.Ordered](s1, s2 S) int {
+//
-	for i, v1 := range s1 {
+//go:fix inline
-		if i >= len(s2) {
+func Compare[S ~[]E, E cmp.Ordered](s1, s2 S) int {
-			return +1
+	return slices.Compare(s1, s2)
-		}
-		v2 := s2[i]
-		if c := cmpCompare(v1, v2); c != 0 {
-			return c
-		}
-	}
-	if len(s1) < len(s2) {
-		return -1
-	}
-	return 0
 }
 
 // CompareFunc is like [Compare] but uses a custom comparison function on each
@@ -74,53 +50,41 @@ func Compare[S ~[]E, E constraints.Ordered](s1, s2 S) int {
 // The result is the first non-zero result of cmp; if cmp always
 // returns 0 the result is 0 if len(s1) == len(s2), -1 if len(s1) < len(s2),
 // and +1 if len(s1) > len(s2).
+//
+//go:fix inline
 func CompareFunc[S1 ~[]E1, S2 ~[]E2, E1, E2 any](s1 S1, s2 S2, cmp func(E1, E2) int) int {
-	for i, v1 := range s1 {
+	return slices.CompareFunc(s1, s2, cmp)
-		if i >= len(s2) {
-			return +1
-		}
-		v2 := s2[i]
-		if c := cmp(v1, v2); c != 0 {
-			return c
-		}
-	}
-	if len(s1) < len(s2) {
-		return -1
-	}
-	return 0
 }
 
 // Index returns the index of the first occurrence of v in s,
 // or -1 if not present.
+//
+//go:fix inline
 func Index[S ~[]E, E comparable](s S, v E) int {
-	for i := range s {
+	return slices.Index(s, v)
-		if v == s[i] {
-			return i
-		}
-	}
-	return -1
 }
 
 // IndexFunc returns the first index i satisfying f(s[i]),
 // or -1 if none do.
+//
+//go:fix inline
 func IndexFunc[S ~[]E, E any](s S, f func(E) bool) int {
-	for i := range s {
+	return slices.IndexFunc(s, f)
-		if f(s[i]) {
-			return i
-		}
-	}
-	return -1
 }
 
 // Contains reports whether v is present in s.
+//
+//go:fix inline
 func Contains[S ~[]E, E comparable](s S, v E) bool {
-	return Index(s, v) >= 0
+	return slices.Contains(s, v)
 }
 
 // ContainsFunc reports whether at least one
 // element e of s satisfies f(e).
+//
+//go:fix inline
 func ContainsFunc[S ~[]E, E any](s S, f func(E) bool) bool {
-	return IndexFunc(s, f) >= 0
+	return slices.ContainsFunc(s, f)
 }
 
 // Insert inserts the values v... into s at index i,
@@ -130,370 +94,89 @@ func ContainsFunc[S ~[]E, E any](s S, f func(E) bool) bool {
 // and r[i+len(v)] == value originally at r[i].
 // Insert panics if i is out of range.
 // This function is O(len(s) + len(v)).
+//
+//go:fix inline
 func Insert[S ~[]E, E any](s S, i int, v ...E) S {
-	m := len(v)
+	return slices.Insert(s, i, v...)
-	if m == 0 {
-		return s
-	}
-	n := len(s)
-	if i == n {
-		return append(s, v...)
-	}
-	if n+m > cap(s) {
-		// Use append rather than make so that we bump the size of
-		// the slice up to the next storage class.
-		// This is what Grow does but we don't call Grow because
-		// that might copy the values twice.
-		s2 := append(s[:i], make(S, n+m-i)...)
-		copy(s2[i:], v)
-		copy(s2[i+m:], s[i:])
-		return s2
-	}
-	s = s[:n+m]
-
-	// before:
-	// s: aaaaaaaabbbbccccccccdddd
-	//            ^   ^       ^   ^
-	//            i  i+m      n  n+m
-	// after:
-	// s: aaaaaaaavvvvbbbbcccccccc
-	//            ^   ^       ^   ^
-	//            i  i+m      n  n+m
-	//
-	// a are the values that don't move in s.
-	// v are the values copied in from v.
-	// b and c are the values from s that are shifted up in index.
-	// d are the values that get overwritten, never to be seen again.
-
-	if !overlaps(v, s[i+m:]) {
-		// Easy case - v does not overlap either the c or d regions.
-		// (It might be in some of a or b, or elsewhere entirely.)
-		// The data we copy up doesn't write to v at all, so just do it.
-
-		copy(s[i+m:], s[i:])
-
-		// Now we have
-		// s: aaaaaaaabbbbbbbbcccccccc
-		//            ^   ^       ^   ^
-		//            i  i+m      n  n+m
-		// Note the b values are duplicated.
-
-		copy(s[i:], v)
-
-		// Now we have
-		// s: aaaaaaaavvvvbbbbcccccccc
-		//            ^   ^       ^   ^
-		//            i  i+m      n  n+m
-		// That's the result we want.
-		return s
-	}
-
-	// The hard case - v overlaps c or d. We can't just shift up
-	// the data because we'd move or clobber the values we're trying
-	// to insert.
-	// So instead, write v on top of d, then rotate.
-	copy(s[n:], v)
-
-	// Now we have
-	// s: aaaaaaaabbbbccccccccvvvv
-	//            ^   ^       ^   ^
-	//            i  i+m      n  n+m
-
-	rotateRight(s[i:], m)
-
-	// Now we have
-	// s: aaaaaaaavvvvbbbbcccccccc
-	//            ^   ^       ^   ^
-	//            i  i+m      n  n+m
-	// That's the result we want.
-	return s
 }
 
 // Delete removes the elements s[i:j] from s, returning the modified slice.
-// Delete panics if s[i:j] is not a valid slice of s.
+// Delete panics if j > len(s) or s[i:j] is not a valid slice of s.
-// Delete is O(len(s)-j), so if many items must be deleted, it is better to
+// Delete is O(len(s)-i), so if many items must be deleted, it is better to
 // make a single call deleting them all together than to delete one at a time.
-// Delete might not modify the elements s[len(s)-(j-i):len(s)]. If those
+// Delete zeroes the elements s[len(s)-(j-i):len(s)].
-// elements contain pointers you might consider zeroing those elements so that
+//
-// objects they reference can be garbage collected.
+//go:fix inline
 func Delete[S ~[]E, E any](s S, i, j int) S {
-	_ = s[i:j] // bounds check
+	return slices.Delete(s, i, j)
-
-	return append(s[:i], s[j:]...)
 }
 
 // DeleteFunc removes any elements from s for which del returns true,
 // returning the modified slice.
-// When DeleteFunc removes m elements, it might not modify the elements
+// DeleteFunc zeroes the elements between the new length and the original length.
-// s[len(s)-m:len(s)]. If those elements contain pointers you might consider
+//
-// zeroing those elements so that objects they reference can be garbage
+//go:fix inline
-// collected.
 func DeleteFunc[S ~[]E, E any](s S, del func(E) bool) S {
-	i := IndexFunc(s, del)
+	return slices.DeleteFunc(s, del)
-	if i == -1 {
-		return s
-	}
-	// Don't start copying elements until we find one to delete.
-	for j := i + 1; j < len(s); j++ {
-		if v := s[j]; !del(v) {
-			s[i] = v
-			i++
-		}
-	}
-	return s[:i]
 }
 
 // Replace replaces the elements s[i:j] by the given v, and returns the
 // modified slice. Replace panics if s[i:j] is not a valid slice of s.
+// When len(v) < (j-i), Replace zeroes the elements between the new length and the original length.
+//
+//go:fix inline
 func Replace[S ~[]E, E any](s S, i, j int, v ...E) S {
-	_ = s[i:j] // verify that i:j is a valid subslice
+	return slices.Replace(s, i, j, v...)
-
-	if i == j {
-		return Insert(s, i, v...)
-	}
-	if j == len(s) {
-		return append(s[:i], v...)
-	}
-
-	tot := len(s[:i]) + len(v) + len(s[j:])
-	if tot > cap(s) {
-		// Too big to fit, allocate and copy over.
-		s2 := append(s[:i], make(S, tot-i)...) // See Insert
-		copy(s2[i:], v)
-		copy(s2[i+len(v):], s[j:])
-		return s2
-	}
-
-	r := s[:tot]
-
-	if i+len(v) <= j {
-		// Easy, as v fits in the deleted portion.
-		copy(r[i:], v)
-		if i+len(v) != j {
-			copy(r[i+len(v):], s[j:])
-		}
-		return r
-	}
-
-	// We are expanding (v is bigger than j-i).
-	// The situation is something like this:
-	// (example has i=4,j=8,len(s)=16,len(v)=6)
-	// s: aaaaxxxxbbbbbbbbyy
-	//        ^   ^       ^ ^
-	//        i   j  len(s) tot
-	// a: prefix of s
-	// x: deleted range
-	// b: more of s
-	// y: area to expand into
-
-	if !overlaps(r[i+len(v):], v) {
-		// Easy, as v is not clobbered by the first copy.
-		copy(r[i+len(v):], s[j:])
-		copy(r[i:], v)
-		return r
-	}
-
-	// This is a situation where we don't have a single place to which
-	// we can copy v. Parts of it need to go to two different places.
-	// We want to copy the prefix of v into y and the suffix into x, then
-	// rotate |y| spots to the right.
-	//
-	//        v[2:]      v[:2]
-	//         |           |
-	// s: aaaavvvvbbbbbbbbvv
-	//        ^   ^       ^ ^
-	//        i   j  len(s) tot
-	//
-	// If either of those two destinations don't alias v, then we're good.
-	y := len(v) - (j - i) // length of y portion
-
-	if !overlaps(r[i:j], v) {
-		copy(r[i:j], v[y:])
-		copy(r[len(s):], v[:y])
-		rotateRight(r[i:], y)
-		return r
-	}
-	if !overlaps(r[len(s):], v) {
-		copy(r[len(s):], v[:y])
-		copy(r[i:j], v[y:])
-		rotateRight(r[i:], y)
-		return r
-	}
-
-	// Now we know that v overlaps both x and y.
-	// That means that the entirety of b is *inside* v.
-	// So we don't need to preserve b at all; instead we
-	// can copy v first, then copy the b part of v out of
-	// v to the right destination.
-	k := startIdx(v, s[j:])
-	copy(r[i:], v)
-	copy(r[i+len(v):], r[i+k:])
-	return r
 }
 
 // Clone returns a copy of the slice.
 // The elements are copied using assignment, so this is a shallow clone.
+//
+//go:fix inline
 func Clone[S ~[]E, E any](s S) S {
-	// Preserve nil in case it matters.
+	return slices.Clone(s)
-	if s == nil {
-		return nil
-	}
-	return append(S([]E{}), s...)
 }
 
 // Compact replaces consecutive runs of equal elements with a single copy.
 // This is like the uniq command found on Unix.
 // Compact modifies the contents of the slice s and returns the modified slice,
 // which may have a smaller length.
-// When Compact discards m elements in total, it might not modify the elements
+// Compact zeroes the elements between the new length and the original length.
-// s[len(s)-m:len(s)]. If those elements contain pointers you might consider
+//
-// zeroing those elements so that objects they reference can be garbage collected.
+//go:fix inline
 func Compact[S ~[]E, E comparable](s S) S {
-	if len(s) < 2 {
+	return slices.Compact(s)
-		return s
-	}
-	i := 1
-	for k := 1; k < len(s); k++ {
-		if s[k] != s[k-1] {
-			if i != k {
-				s[i] = s[k]
-			}
-			i++
-		}
-	}
-	return s[:i]
 }
 
 // CompactFunc is like [Compact] but uses an equality function to compare elements.
 // For runs of elements that compare equal, CompactFunc keeps the first one.
+// CompactFunc zeroes the elements between the new length and the original length.
+//
+//go:fix inline
 func CompactFunc[S ~[]E, E any](s S, eq func(E, E) bool) S {
-	if len(s) < 2 {
+	return slices.CompactFunc(s, eq)
-		return s
-	}
-	i := 1
-	for k := 1; k < len(s); k++ {
-		if !eq(s[k], s[k-1]) {
-			if i != k {
-				s[i] = s[k]
-			}
-			i++
-		}
-	}
-	return s[:i]
 }
 
 // Grow increases the slice's capacity, if necessary, to guarantee space for
 // another n elements. After Grow(n), at least n elements can be appended
 // to the slice without another allocation. If n is negative or too large to
 // allocate the memory, Grow panics.
+//
+//go:fix inline
 func Grow[S ~[]E, E any](s S, n int) S {
-	if n < 0 {
+	return slices.Grow(s, n)
-		panic("cannot be negative")
-	}
-	if n -= cap(s) - len(s); n > 0 {
-		// TODO(https://go.dev/issue/53888): Make using []E instead of S
-		// to workaround a compiler bug where the runtime.growslice optimization
-		// does not take effect. Revert when the compiler is fixed.
-		s = append([]E(s)[:cap(s)], make([]E, n)...)[:len(s)]
-	}
-	return s
 }
 
 // Clip removes unused capacity from the slice, returning s[:len(s):len(s)].
+//
+//go:fix inline
 func Clip[S ~[]E, E any](s S) S {
-	return s[:len(s):len(s)]
+	return slices.Clip(s)
-}
-
-// Rotation algorithm explanation:
-//
-// rotate left by 2
-// start with
-//   0123456789
-// split up like this
-//   01 234567 89
-// swap first 2 and last 2
-//   89 234567 01
-// join first parts
-//   89234567 01
-// recursively rotate first left part by 2
-//   23456789 01
-// join at the end
-//   2345678901
-//
-// rotate left by 8
-// start with
-//   0123456789
-// split up like this
-//   01 234567 89
-// swap first 2 and last 2
-//   89 234567 01
-// join last parts
-//   89 23456701
-// recursively rotate second part left by 6
-//   89 01234567
-// join at the end
-//   8901234567
-
-// TODO: There are other rotate algorithms.
-// This algorithm has the desirable property that it moves each element exactly twice.
-// The triple-reverse algorithm is simpler and more cache friendly, but takes more writes.
-// The follow-cycles algorithm can be 1-write but it is not very cache friendly.
-
-// rotateLeft rotates b left by n spaces.
-// s_final[i] = s_orig[i+r], wrapping around.
-func rotateLeft[E any](s []E, r int) {
-	for r != 0 && r != len(s) {
-		if r*2 <= len(s) {
-			swap(s[:r], s[len(s)-r:])
-			s = s[:len(s)-r]
-		} else {
-			swap(s[:len(s)-r], s[r:])
-			s, r = s[len(s)-r:], r*2-len(s)
-		}
-	}
-}
-func rotateRight[E any](s []E, r int) {
-	rotateLeft(s, len(s)-r)
-}
-
-// swap swaps the contents of x and y. x and y must be equal length and disjoint.
-func swap[E any](x, y []E) {
-	for i := 0; i < len(x); i++ {
-		x[i], y[i] = y[i], x[i]
-	}
-}
-
-// overlaps reports whether the memory ranges a[0:len(a)] and b[0:len(b)] overlap.
-func overlaps[E any](a, b []E) bool {
-	if len(a) == 0 || len(b) == 0 {
-		return false
-	}
-	elemSize := unsafe.Sizeof(a[0])
-	if elemSize == 0 {
-		return false
-	}
-	// TODO: use a runtime/unsafe facility once one becomes available. See issue 12445.
-	// Also see crypto/internal/alias/alias.go:AnyOverlap
-	return uintptr(unsafe.Pointer(&a[0])) <= uintptr(unsafe.Pointer(&b[len(b)-1]))+(elemSize-1) &&
-		uintptr(unsafe.Pointer(&b[0])) <= uintptr(unsafe.Pointer(&a[len(a)-1]))+(elemSize-1)
-}
-
-// startIdx returns the index in haystack where the needle starts.
-// prerequisite: the needle must be aliased entirely inside the haystack.
-func startIdx[E any](haystack, needle []E) int {
-	p := &needle[0]
-	for i := range haystack {
-		if p == &haystack[i] {
-			return i
-		}
-	}
-	// TODO: what if the overlap is by a non-integral number of Es?
-	panic("needle not found")
 }
 
 // Reverse reverses the elements of the slice in place.
+//
+//go:fix inline
 func Reverse[S ~[]E, E any](s S) {
-	for i, j := 0, len(s)-1; i < j; i, j = i+1, j-1 {
+	slices.Reverse(s)
-		s[i], s[j] = s[j], s[i]
-	}
 }

vendor/golang.org/x/exp/slices/sort.go

@@ -2,143 +2,103 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-//go:generate go run $GOROOT/src/sort/gen_sort_variants.go -exp
-
 package slices
 
 import (
-	"math/bits"
+	"cmp"
-
+	"slices"
-	"golang.org/x/exp/constraints"
 )
 
 // Sort sorts a slice of any ordered type in ascending order.
 // When sorting floating-point numbers, NaNs are ordered before other values.
-func Sort[S ~[]E, E constraints.Ordered](x S) {
+//
-	n := len(x)
+//go:fix inline
-	pdqsortOrdered(x, 0, n, bits.Len(uint(n)))
+func Sort[S ~[]E, E cmp.Ordered](x S) {
+	slices.Sort(x)
 }
 
 // SortFunc sorts the slice x in ascending order as determined by the cmp
 // function. This sort is not guaranteed to be stable.
 // cmp(a, b) should return a negative number when a < b, a positive number when
-// a > b and zero when a == b.
+// a > b and zero when a == b or when a is not comparable to b in the sense
+// of the formal definition of Strict Weak Ordering.
 //
 // SortFunc requires that cmp is a strict weak ordering.
 // See https://en.wikipedia.org/wiki/Weak_ordering#Strict_weak_orderings.
+// To indicate 'uncomparable', return 0 from the function.
+//
+//go:fix inline
 func SortFunc[S ~[]E, E any](x S, cmp func(a, b E) int) {
-	n := len(x)
+	slices.SortFunc(x, cmp)
-	pdqsortCmpFunc(x, 0, n, bits.Len(uint(n)), cmp)
 }
 
 // SortStableFunc sorts the slice x while keeping the original order of equal
 // elements, using cmp to compare elements in the same way as [SortFunc].
+//
+//go:fix inline
 func SortStableFunc[S ~[]E, E any](x S, cmp func(a, b E) int) {
-	stableCmpFunc(x, len(x), cmp)
+	slices.SortStableFunc(x, cmp)
 }
 
 // IsSorted reports whether x is sorted in ascending order.
-func IsSorted[S ~[]E, E constraints.Ordered](x S) bool {
+//
-	for i := len(x) - 1; i > 0; i-- {
+//go:fix inline
-		if cmpLess(x[i], x[i-1]) {
+func IsSorted[S ~[]E, E cmp.Ordered](x S) bool {
-			return false
+	return slices.IsSorted(x)
-		}
-	}
-	return true
 }
 
 // IsSortedFunc reports whether x is sorted in ascending order, with cmp as the
 // comparison function as defined by [SortFunc].
+//
+//go:fix inline
 func IsSortedFunc[S ~[]E, E any](x S, cmp func(a, b E) int) bool {
-	for i := len(x) - 1; i > 0; i-- {
+	return slices.IsSortedFunc(x, cmp)
-		if cmp(x[i], x[i-1]) < 0 {
-			return false
-		}
-	}
-	return true
 }
 
 // Min returns the minimal value in x. It panics if x is empty.
 // For floating-point numbers, Min propagates NaNs (any NaN value in x
 // forces the output to be NaN).
-func Min[S ~[]E, E constraints.Ordered](x S) E {
+//
-	if len(x) < 1 {
+//go:fix inline
-		panic("slices.Min: empty list")
+func Min[S ~[]E, E cmp.Ordered](x S) E {
-	}
+	return slices.Min(x)
-	m := x[0]
-	for i := 1; i < len(x); i++ {
-		m = min(m, x[i])
-	}
-	return m
 }
 
 // MinFunc returns the minimal value in x, using cmp to compare elements.
 // It panics if x is empty. If there is more than one minimal element
 // according to the cmp function, MinFunc returns the first one.
+//
+//go:fix inline
 func MinFunc[S ~[]E, E any](x S, cmp func(a, b E) int) E {
-	if len(x) < 1 {
+	return slices.MinFunc(x, cmp)
-		panic("slices.MinFunc: empty list")
-	}
-	m := x[0]
-	for i := 1; i < len(x); i++ {
-		if cmp(x[i], m) < 0 {
-			m = x[i]
-		}
-	}
-	return m
 }
 
 // Max returns the maximal value in x. It panics if x is empty.
 // For floating-point E, Max propagates NaNs (any NaN value in x
 // forces the output to be NaN).
-func Max[S ~[]E, E constraints.Ordered](x S) E {
+//
-	if len(x) < 1 {
+//go:fix inline
-		panic("slices.Max: empty list")
+func Max[S ~[]E, E cmp.Ordered](x S) E {
-	}
+	return slices.Max(x)
-	m := x[0]
-	for i := 1; i < len(x); i++ {
-		m = max(m, x[i])
-	}
-	return m
 }
 
 // MaxFunc returns the maximal value in x, using cmp to compare elements.
 // It panics if x is empty. If there is more than one maximal element
 // according to the cmp function, MaxFunc returns the first one.
+//
+//go:fix inline
 func MaxFunc[S ~[]E, E any](x S, cmp func(a, b E) int) E {
-	if len(x) < 1 {
+	return slices.MaxFunc(x, cmp)
-		panic("slices.MaxFunc: empty list")
-	}
-	m := x[0]
-	for i := 1; i < len(x); i++ {
-		if cmp(x[i], m) > 0 {
-			m = x[i]
-		}
-	}
-	return m
 }
 
 // BinarySearch searches for target in a sorted slice and returns the position
 // where target is found, or the position where target would appear in the
 // sort order; it also returns a bool saying whether the target is really found
 // in the slice. The slice must be sorted in increasing order.
-func BinarySearch[S ~[]E, E constraints.Ordered](x S, target E) (int, bool) {
+//
-	// Inlining is faster than calling BinarySearchFunc with a lambda.
+//go:fix inline
-	n := len(x)
+func BinarySearch[S ~[]E, E cmp.Ordered](x S, target E) (int, bool) {
-	// Define x[-1] < target and x[n] >= target.
+	return slices.BinarySearch(x, target)
-	// Invariant: x[i-1] < target, x[j] >= target.
-	i, j := 0, n
-	for i < j {
-		h := int(uint(i+j) >> 1) // avoid overflow when computing h
-		// i ≤ h < j
-		if cmpLess(x[h], target) {
-			i = h + 1 // preserves x[i-1] < target
-		} else {
-			j = h // preserves x[j] >= target
-		}
-	}
-	// i == j, x[i-1] < target, and x[j] (= x[i]) >= target  =>  answer is i.
-	return i, i < n && (x[i] == target || (isNaN(x[i]) && isNaN(target)))
 }
 
 // BinarySearchFunc works like [BinarySearch], but uses a custom comparison
@@ -148,48 +108,8 @@ func BinarySearch[S ~[]E, E constraints.Ordered](x S, target E) (int, bool) {
 // or a positive number if the slice element follows the target.
 // cmp must implement the same ordering as the slice, such that if
 // cmp(a, t) < 0 and cmp(b, t) >= 0, then a must precede b in the slice.
+//
+//go:fix inline
 func BinarySearchFunc[S ~[]E, E, T any](x S, target T, cmp func(E, T) int) (int, bool) {
-	n := len(x)
+	return slices.BinarySearchFunc(x, target, cmp)
-	// Define cmp(x[-1], target) < 0 and cmp(x[n], target) >= 0 .
-	// Invariant: cmp(x[i - 1], target) < 0, cmp(x[j], target) >= 0.
-	i, j := 0, n
-	for i < j {
-		h := int(uint(i+j) >> 1) // avoid overflow when computing h
-		// i ≤ h < j
-		if cmp(x[h], target) < 0 {
-			i = h + 1 // preserves cmp(x[i - 1], target) < 0
-		} else {
-			j = h // preserves cmp(x[j], target) >= 0
-		}
-	}
-	// i == j, cmp(x[i-1], target) < 0, and cmp(x[j], target) (= cmp(x[i], target)) >= 0  =>  answer is i.
-	return i, i < n && cmp(x[i], target) == 0
-}
-
-type sortedHint int // hint for pdqsort when choosing the pivot
-
-const (
-	unknownHint sortedHint = iota
-	increasingHint
-	decreasingHint
-)
-
-// xorshift paper: https://www.jstatsoft.org/article/view/v008i14/xorshift.pdf
-type xorshift uint64
-
-func (r *xorshift) Next() uint64 {
-	*r ^= *r << 13
-	*r ^= *r >> 17
-	*r ^= *r << 5
-	return uint64(*r)
-}
-
-func nextPowerOfTwo(length int) uint {
-	return 1 << bits.Len(uint(length))
-}
-
-// isNaN reports whether x is a NaN without requiring the math package.
-// This will always return false if T is not floating-point.
-func isNaN[T constraints.Ordered](x T) bool {
-	return x != x
 }

vendor/golang.org/x/exp/slices/zsortanyfunc.go

@@ -1,479 +0,0 @@
-// Code generated by gen_sort_variants.go; DO NOT EDIT.
-
-// Copyright 2022 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package slices
-
-// insertionSortCmpFunc sorts data[a:b] using insertion sort.
-func insertionSortCmpFunc[E any](data []E, a, b int, cmp func(a, b E) int) {
-	for i := a + 1; i < b; i++ {
-		for j := i; j > a && (cmp(data[j], data[j-1]) < 0); j-- {
-			data[j], data[j-1] = data[j-1], data[j]
-		}
-	}
-}
-
-// siftDownCmpFunc implements the heap property on data[lo:hi].
-// first is an offset into the array where the root of the heap lies.
-func siftDownCmpFunc[E any](data []E, lo, hi, first int, cmp func(a, b E) int) {
-	root := lo
-	for {
-		child := 2*root + 1
-		if child >= hi {
-			break
-		}
-		if child+1 < hi && (cmp(data[first+child], data[first+child+1]) < 0) {
-			child++
-		}
-		if !(cmp(data[first+root], data[first+child]) < 0) {
-			return
-		}
-		data[first+root], data[first+child] = data[first+child], data[first+root]
-		root = child
-	}
-}
-
-func heapSortCmpFunc[E any](data []E, a, b int, cmp func(a, b E) int) {
-	first := a
-	lo := 0
-	hi := b - a
-
-	// Build heap with greatest element at top.
-	for i := (hi - 1) / 2; i >= 0; i-- {
-		siftDownCmpFunc(data, i, hi, first, cmp)
-	}
-
-	// Pop elements, largest first, into end of data.
-	for i := hi - 1; i >= 0; i-- {
-		data[first], data[first+i] = data[first+i], data[first]
-		siftDownCmpFunc(data, lo, i, first, cmp)
-	}
-}
-
-// pdqsortCmpFunc sorts data[a:b].
-// The algorithm based on pattern-defeating quicksort(pdqsort), but without the optimizations from BlockQuicksort.
-// pdqsort paper: https://arxiv.org/pdf/2106.05123.pdf
-// C++ implementation: https://github.com/orlp/pdqsort
-// Rust implementation: https://docs.rs/pdqsort/latest/pdqsort/
-// limit is the number of allowed bad (very unbalanced) pivots before falling back to heapsort.
-func pdqsortCmpFunc[E any](data []E, a, b, limit int, cmp func(a, b E) int) {
-	const maxInsertion = 12
-
-	var (
-		wasBalanced    = true // whether the last partitioning was reasonably balanced
-		wasPartitioned = true // whether the slice was already partitioned
-	)
-
-	for {
-		length := b - a
-
-		if length <= maxInsertion {
-			insertionSortCmpFunc(data, a, b, cmp)
-			return
-		}
-
-		// Fall back to heapsort if too many bad choices were made.
-		if limit == 0 {
-			heapSortCmpFunc(data, a, b, cmp)
-			return
-		}
-
-		// If the last partitioning was imbalanced, we need to breaking patterns.
-		if !wasBalanced {
-			breakPatternsCmpFunc(data, a, b, cmp)
-			limit--
-		}
-
-		pivot, hint := choosePivotCmpFunc(data, a, b, cmp)
-		if hint == decreasingHint {
-			reverseRangeCmpFunc(data, a, b, cmp)
-			// The chosen pivot was pivot-a elements after the start of the array.
-			// After reversing it is pivot-a elements before the end of the array.
-			// The idea came from Rust's implementation.
-			pivot = (b - 1) - (pivot - a)
-			hint = increasingHint
-		}
-
-		// The slice is likely already sorted.
-		if wasBalanced && wasPartitioned && hint == increasingHint {
-			if partialInsertionSortCmpFunc(data, a, b, cmp) {
-				return
-			}
-		}
-
-		// Probably the slice contains many duplicate elements, partition the slice into
-		// elements equal to and elements greater than the pivot.
-		if a > 0 && !(cmp(data[a-1], data[pivot]) < 0) {
-			mid := partitionEqualCmpFunc(data, a, b, pivot, cmp)
-			a = mid
-			continue
-		}
-
-		mid, alreadyPartitioned := partitionCmpFunc(data, a, b, pivot, cmp)
-		wasPartitioned = alreadyPartitioned
-
-		leftLen, rightLen := mid-a, b-mid
-		balanceThreshold := length / 8
-		if leftLen < rightLen {
-			wasBalanced = leftLen >= balanceThreshold
-			pdqsortCmpFunc(data, a, mid, limit, cmp)
-			a = mid + 1
-		} else {
-			wasBalanced = rightLen >= balanceThreshold
-			pdqsortCmpFunc(data, mid+1, b, limit, cmp)
-			b = mid
-		}
-	}
-}
-
-// partitionCmpFunc does one quicksort partition.
-// Let p = data[pivot]
-// Moves elements in data[a:b] around, so that data[i]<p and data[j]>=p for i<newpivot and j>newpivot.
-// On return, data[newpivot] = p
-func partitionCmpFunc[E any](data []E, a, b, pivot int, cmp func(a, b E) int) (newpivot int, alreadyPartitioned bool) {
-	data[a], data[pivot] = data[pivot], data[a]
-	i, j := a+1, b-1 // i and j are inclusive of the elements remaining to be partitioned
-
-	for i <= j && (cmp(data[i], data[a]) < 0) {
-		i++
-	}
-	for i <= j && !(cmp(data[j], data[a]) < 0) {
-		j--
-	}
-	if i > j {
-		data[j], data[a] = data[a], data[j]
-		return j, true
-	}
-	data[i], data[j] = data[j], data[i]
-	i++
-	j--
-
-	for {
-		for i <= j && (cmp(data[i], data[a]) < 0) {
-			i++
-		}
-		for i <= j && !(cmp(data[j], data[a]) < 0) {
-			j--
-		}
-		if i > j {
-			break
-		}
-		data[i], data[j] = data[j], data[i]
-		i++
-		j--
-	}
-	data[j], data[a] = data[a], data[j]
-	return j, false
-}
-
-// partitionEqualCmpFunc partitions data[a:b] into elements equal to data[pivot] followed by elements greater than data[pivot].
-// It assumed that data[a:b] does not contain elements smaller than the data[pivot].
-func partitionEqualCmpFunc[E any](data []E, a, b, pivot int, cmp func(a, b E) int) (newpivot int) {
-	data[a], data[pivot] = data[pivot], data[a]
-	i, j := a+1, b-1 // i and j are inclusive of the elements remaining to be partitioned
-
-	for {
-		for i <= j && !(cmp(data[a], data[i]) < 0) {
-			i++
-		}
-		for i <= j && (cmp(data[a], data[j]) < 0) {
-			j--
-		}
-		if i > j {
-			break
-		}
-		data[i], data[j] = data[j], data[i]
-		i++
-		j--
-	}
-	return i
-}
-
-// partialInsertionSortCmpFunc partially sorts a slice, returns true if the slice is sorted at the end.
-func partialInsertionSortCmpFunc[E any](data []E, a, b int, cmp func(a, b E) int) bool {
-	const (
-		maxSteps         = 5  // maximum number of adjacent out-of-order pairs that will get shifted
-		shortestShifting = 50 // don't shift any elements on short arrays
-	)
-	i := a + 1
-	for j := 0; j < maxSteps; j++ {
-		for i < b && !(cmp(data[i], data[i-1]) < 0) {
-			i++
-		}
-
-		if i == b {
-			return true
-		}
-
-		if b-a < shortestShifting {
-			return false
-		}
-
-		data[i], data[i-1] = data[i-1], data[i]
-
-		// Shift the smaller one to the left.
-		if i-a >= 2 {
-			for j := i - 1; j >= 1; j-- {
-				if !(cmp(data[j], data[j-1]) < 0) {
-					break
-				}
-				data[j], data[j-1] = data[j-1], data[j]
-			}
-		}
-		// Shift the greater one to the right.
-		if b-i >= 2 {
-			for j := i + 1; j < b; j++ {
-				if !(cmp(data[j], data[j-1]) < 0) {
-					break
-				}
-				data[j], data[j-1] = data[j-1], data[j]
-			}
-		}
-	}
-	return false
-}
-
-// breakPatternsCmpFunc scatters some elements around in an attempt to break some patterns
-// that might cause imbalanced partitions in quicksort.
-func breakPatternsCmpFunc[E any](data []E, a, b int, cmp func(a, b E) int) {
-	length := b - a
-	if length >= 8 {
-		random := xorshift(length)
-		modulus := nextPowerOfTwo(length)
-
-		for idx := a + (length/4)*2 - 1; idx <= a+(length/4)*2+1; idx++ {
-			other := int(uint(random.Next()) & (modulus - 1))
-			if other >= length {
-				other -= length
-			}
-			data[idx], data[a+other] = data[a+other], data[idx]
-		}
-	}
-}
-
-// choosePivotCmpFunc chooses a pivot in data[a:b].
-//
-// [0,8): chooses a static pivot.
-// [8,shortestNinther): uses the simple median-of-three method.
-// [shortestNinther,∞): uses the Tukey ninther method.
-func choosePivotCmpFunc[E any](data []E, a, b int, cmp func(a, b E) int) (pivot int, hint sortedHint) {
-	const (
-		shortestNinther = 50
-		maxSwaps        = 4 * 3
-	)
-
-	l := b - a
-
-	var (
-		swaps int
-		i     = a + l/4*1
-		j     = a + l/4*2
-		k     = a + l/4*3
-	)
-
-	if l >= 8 {
-		if l >= shortestNinther {
-			// Tukey ninther method, the idea came from Rust's implementation.
-			i = medianAdjacentCmpFunc(data, i, &swaps, cmp)
-			j = medianAdjacentCmpFunc(data, j, &swaps, cmp)
-			k = medianAdjacentCmpFunc(data, k, &swaps, cmp)
-		}
-		// Find the median among i, j, k and stores it into j.
-		j = medianCmpFunc(data, i, j, k, &swaps, cmp)
-	}
-
-	switch swaps {
-	case 0:
-		return j, increasingHint
-	case maxSwaps:
-		return j, decreasingHint
-	default:
-		return j, unknownHint
-	}
-}
-
-// order2CmpFunc returns x,y where data[x] <= data[y], where x,y=a,b or x,y=b,a.
-func order2CmpFunc[E any](data []E, a, b int, swaps *int, cmp func(a, b E) int) (int, int) {
-	if cmp(data[b], data[a]) < 0 {
-		*swaps++
-		return b, a
-	}
-	return a, b
-}
-
-// medianCmpFunc returns x where data[x] is the median of data[a],data[b],data[c], where x is a, b, or c.
-func medianCmpFunc[E any](data []E, a, b, c int, swaps *int, cmp func(a, b E) int) int {
-	a, b = order2CmpFunc(data, a, b, swaps, cmp)
-	b, c = order2CmpFunc(data, b, c, swaps, cmp)
-	a, b = order2CmpFunc(data, a, b, swaps, cmp)
-	return b
-}
-
-// medianAdjacentCmpFunc finds the median of data[a - 1], data[a], data[a + 1] and stores the index into a.
-func medianAdjacentCmpFunc[E any](data []E, a int, swaps *int, cmp func(a, b E) int) int {
-	return medianCmpFunc(data, a-1, a, a+1, swaps, cmp)
-}
-
-func reverseRangeCmpFunc[E any](data []E, a, b int, cmp func(a, b E) int) {
-	i := a
-	j := b - 1
-	for i < j {
-		data[i], data[j] = data[j], data[i]
-		i++
-		j--
-	}
-}
-
-func swapRangeCmpFunc[E any](data []E, a, b, n int, cmp func(a, b E) int) {
-	for i := 0; i < n; i++ {
-		data[a+i], data[b+i] = data[b+i], data[a+i]
-	}
-}
-
-func stableCmpFunc[E any](data []E, n int, cmp func(a, b E) int) {
-	blockSize := 20 // must be > 0
-	a, b := 0, blockSize
-	for b <= n {
-		insertionSortCmpFunc(data, a, b, cmp)
-		a = b
-		b += blockSize
-	}
-	insertionSortCmpFunc(data, a, n, cmp)
-
-	for blockSize < n {
-		a, b = 0, 2*blockSize
-		for b <= n {
-			symMergeCmpFunc(data, a, a+blockSize, b, cmp)
-			a = b
-			b += 2 * blockSize
-		}
-		if m := a + blockSize; m < n {
-			symMergeCmpFunc(data, a, m, n, cmp)
-		}
-		blockSize *= 2
-	}
-}
-
-// symMergeCmpFunc merges the two sorted subsequences data[a:m] and data[m:b] using
-// the SymMerge algorithm from Pok-Son Kim and Arne Kutzner, "Stable Minimum
-// Storage Merging by Symmetric Comparisons", in Susanne Albers and Tomasz
-// Radzik, editors, Algorithms - ESA 2004, volume 3221 of Lecture Notes in
-// Computer Science, pages 714-723. Springer, 2004.
-//
-// Let M = m-a and N = b-n. Wolog M < N.
-// The recursion depth is bound by ceil(log(N+M)).
-// The algorithm needs O(M*log(N/M + 1)) calls to data.Less.
-// The algorithm needs O((M+N)*log(M)) calls to data.Swap.
-//
-// The paper gives O((M+N)*log(M)) as the number of assignments assuming a
-// rotation algorithm which uses O(M+N+gcd(M+N)) assignments. The argumentation
-// in the paper carries through for Swap operations, especially as the block
-// swapping rotate uses only O(M+N) Swaps.
-//
-// symMerge assumes non-degenerate arguments: a < m && m < b.
-// Having the caller check this condition eliminates many leaf recursion calls,
-// which improves performance.
-func symMergeCmpFunc[E any](data []E, a, m, b int, cmp func(a, b E) int) {
-	// Avoid unnecessary recursions of symMerge
-	// by direct insertion of data[a] into data[m:b]
-	// if data[a:m] only contains one element.
-	if m-a == 1 {
-		// Use binary search to find the lowest index i
-		// such that data[i] >= data[a] for m <= i < b.
-		// Exit the search loop with i == b in case no such index exists.
-		i := m
-		j := b
-		for i < j {
-			h := int(uint(i+j) >> 1)
-			if cmp(data[h], data[a]) < 0 {
-				i = h + 1
-			} else {
-				j = h
-			}
-		}
-		// Swap values until data[a] reaches the position before i.
-		for k := a; k < i-1; k++ {
-			data[k], data[k+1] = data[k+1], data[k]
-		}
-		return
-	}
-
-	// Avoid unnecessary recursions of symMerge
-	// by direct insertion of data[m] into data[a:m]
-	// if data[m:b] only contains one element.
-	if b-m == 1 {
-		// Use binary search to find the lowest index i
-		// such that data[i] > data[m] for a <= i < m.
-		// Exit the search loop with i == m in case no such index exists.
-		i := a
-		j := m
-		for i < j {
-			h := int(uint(i+j) >> 1)
-			if !(cmp(data[m], data[h]) < 0) {
-				i = h + 1
-			} else {
-				j = h
-			}
-		}
-		// Swap values until data[m] reaches the position i.
-		for k := m; k > i; k-- {
-			data[k], data[k-1] = data[k-1], data[k]
-		}
-		return
-	}
-
-	mid := int(uint(a+b) >> 1)
-	n := mid + m
-	var start, r int
-	if m > mid {
-		start = n - b
-		r = mid
-	} else {
-		start = a
-		r = m
-	}
-	p := n - 1
-
-	for start < r {
-		c := int(uint(start+r) >> 1)
-		if !(cmp(data[p-c], data[c]) < 0) {
-			start = c + 1
-		} else {
-			r = c
-		}
-	}
-
-	end := n - start
-	if start < m && m < end {
-		rotateCmpFunc(data, start, m, end, cmp)
-	}
-	if a < start && start < mid {
-		symMergeCmpFunc(data, a, start, mid, cmp)
-	}
-	if mid < end && end < b {
-		symMergeCmpFunc(data, mid, end, b, cmp)
-	}
-}
-
-// rotateCmpFunc rotates two consecutive blocks u = data[a:m] and v = data[m:b] in data:
-// Data of the form 'x u v y' is changed to 'x v u y'.
-// rotate performs at most b-a many calls to data.Swap,
-// and it assumes non-degenerate arguments: a < m && m < b.
-func rotateCmpFunc[E any](data []E, a, m, b int, cmp func(a, b E) int) {
-	i := m - a
-	j := b - m
-
-	for i != j {
-		if i > j {
-			swapRangeCmpFunc(data, m-i, m, j, cmp)
-			i -= j
-		} else {
-			swapRangeCmpFunc(data, m-i, m+j-i, i, cmp)
-			j -= i
-		}
-	}
-	// i == j
-	swapRangeCmpFunc(data, m-i, m, i, cmp)
-}

vendor/golang.org/x/exp/slices/zsortordered.go

@@ -1,481 +0,0 @@
-// Code generated by gen_sort_variants.go; DO NOT EDIT.
-
-// Copyright 2022 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package slices
-
-import "golang.org/x/exp/constraints"
-
-// insertionSortOrdered sorts data[a:b] using insertion sort.
-func insertionSortOrdered[E constraints.Ordered](data []E, a, b int) {
-	for i := a + 1; i < b; i++ {
-		for j := i; j > a && cmpLess(data[j], data[j-1]); j-- {
-			data[j], data[j-1] = data[j-1], data[j]
-		}
-	}
-}
-
-// siftDownOrdered implements the heap property on data[lo:hi].
-// first is an offset into the array where the root of the heap lies.
-func siftDownOrdered[E constraints.Ordered](data []E, lo, hi, first int) {
-	root := lo
-	for {
-		child := 2*root + 1
-		if child >= hi {
-			break
-		}
-		if child+1 < hi && cmpLess(data[first+child], data[first+child+1]) {
-			child++
-		}
-		if !cmpLess(data[first+root], data[first+child]) {
-			return
-		}
-		data[first+root], data[first+child] = data[first+child], data[first+root]
-		root = child
-	}
-}
-
-func heapSortOrdered[E constraints.Ordered](data []E, a, b int) {
-	first := a
-	lo := 0
-	hi := b - a
-
-	// Build heap with greatest element at top.
-	for i := (hi - 1) / 2; i >= 0; i-- {
-		siftDownOrdered(data, i, hi, first)
-	}
-
-	// Pop elements, largest first, into end of data.
-	for i := hi - 1; i >= 0; i-- {
-		data[first], data[first+i] = data[first+i], data[first]
-		siftDownOrdered(data, lo, i, first)
-	}
-}
-
-// pdqsortOrdered sorts data[a:b].
-// The algorithm based on pattern-defeating quicksort(pdqsort), but without the optimizations from BlockQuicksort.
-// pdqsort paper: https://arxiv.org/pdf/2106.05123.pdf
-// C++ implementation: https://github.com/orlp/pdqsort
-// Rust implementation: https://docs.rs/pdqsort/latest/pdqsort/
-// limit is the number of allowed bad (very unbalanced) pivots before falling back to heapsort.
-func pdqsortOrdered[E constraints.Ordered](data []E, a, b, limit int) {
-	const maxInsertion = 12
-
-	var (
-		wasBalanced    = true // whether the last partitioning was reasonably balanced
-		wasPartitioned = true // whether the slice was already partitioned
-	)
-
-	for {
-		length := b - a
-
-		if length <= maxInsertion {
-			insertionSortOrdered(data, a, b)
-			return
-		}
-
-		// Fall back to heapsort if too many bad choices were made.
-		if limit == 0 {
-			heapSortOrdered(data, a, b)
-			return
-		}
-
-		// If the last partitioning was imbalanced, we need to breaking patterns.
-		if !wasBalanced {
-			breakPatternsOrdered(data, a, b)
-			limit--
-		}
-
-		pivot, hint := choosePivotOrdered(data, a, b)
-		if hint == decreasingHint {
-			reverseRangeOrdered(data, a, b)
-			// The chosen pivot was pivot-a elements after the start of the array.
-			// After reversing it is pivot-a elements before the end of the array.
-			// The idea came from Rust's implementation.
-			pivot = (b - 1) - (pivot - a)
-			hint = increasingHint
-		}
-
-		// The slice is likely already sorted.
-		if wasBalanced && wasPartitioned && hint == increasingHint {
-			if partialInsertionSortOrdered(data, a, b) {
-				return
-			}
-		}
-
-		// Probably the slice contains many duplicate elements, partition the slice into
-		// elements equal to and elements greater than the pivot.
-		if a > 0 && !cmpLess(data[a-1], data[pivot]) {
-			mid := partitionEqualOrdered(data, a, b, pivot)
-			a = mid
-			continue
-		}
-
-		mid, alreadyPartitioned := partitionOrdered(data, a, b, pivot)
-		wasPartitioned = alreadyPartitioned
-
-		leftLen, rightLen := mid-a, b-mid
-		balanceThreshold := length / 8
-		if leftLen < rightLen {
-			wasBalanced = leftLen >= balanceThreshold
-			pdqsortOrdered(data, a, mid, limit)
-			a = mid + 1
-		} else {
-			wasBalanced = rightLen >= balanceThreshold
-			pdqsortOrdered(data, mid+1, b, limit)
-			b = mid
-		}
-	}
-}
-
-// partitionOrdered does one quicksort partition.
-// Let p = data[pivot]
-// Moves elements in data[a:b] around, so that data[i]<p and data[j]>=p for i<newpivot and j>newpivot.
-// On return, data[newpivot] = p
-func partitionOrdered[E constraints.Ordered](data []E, a, b, pivot int) (newpivot int, alreadyPartitioned bool) {
-	data[a], data[pivot] = data[pivot], data[a]
-	i, j := a+1, b-1 // i and j are inclusive of the elements remaining to be partitioned
-
-	for i <= j && cmpLess(data[i], data[a]) {
-		i++
-	}
-	for i <= j && !cmpLess(data[j], data[a]) {
-		j--
-	}
-	if i > j {
-		data[j], data[a] = data[a], data[j]
-		return j, true
-	}
-	data[i], data[j] = data[j], data[i]
-	i++
-	j--
-
-	for {
-		for i <= j && cmpLess(data[i], data[a]) {
-			i++
-		}
-		for i <= j && !cmpLess(data[j], data[a]) {
-			j--
-		}
-		if i > j {
-			break
-		}
-		data[i], data[j] = data[j], data[i]
-		i++
-		j--
-	}
-	data[j], data[a] = data[a], data[j]
-	return j, false
-}
-
-// partitionEqualOrdered partitions data[a:b] into elements equal to data[pivot] followed by elements greater than data[pivot].
-// It assumed that data[a:b] does not contain elements smaller than the data[pivot].
-func partitionEqualOrdered[E constraints.Ordered](data []E, a, b, pivot int) (newpivot int) {
-	data[a], data[pivot] = data[pivot], data[a]
-	i, j := a+1, b-1 // i and j are inclusive of the elements remaining to be partitioned
-
-	for {
-		for i <= j && !cmpLess(data[a], data[i]) {
-			i++
-		}
-		for i <= j && cmpLess(data[a], data[j]) {
-			j--
-		}
-		if i > j {
-			break
-		}
-		data[i], data[j] = data[j], data[i]
-		i++
-		j--
-	}
-	return i
-}
-
-// partialInsertionSortOrdered partially sorts a slice, returns true if the slice is sorted at the end.
-func partialInsertionSortOrdered[E constraints.Ordered](data []E, a, b int) bool {
-	const (
-		maxSteps         = 5  // maximum number of adjacent out-of-order pairs that will get shifted
-		shortestShifting = 50 // don't shift any elements on short arrays
-	)
-	i := a + 1
-	for j := 0; j < maxSteps; j++ {
-		for i < b && !cmpLess(data[i], data[i-1]) {
-			i++
-		}
-
-		if i == b {
-			return true
-		}
-
-		if b-a < shortestShifting {
-			return false
-		}
-
-		data[i], data[i-1] = data[i-1], data[i]
-
-		// Shift the smaller one to the left.
-		if i-a >= 2 {
-			for j := i - 1; j >= 1; j-- {
-				if !cmpLess(data[j], data[j-1]) {
-					break
-				}
-				data[j], data[j-1] = data[j-1], data[j]
-			}
-		}
-		// Shift the greater one to the right.
-		if b-i >= 2 {
-			for j := i + 1; j < b; j++ {
-				if !cmpLess(data[j], data[j-1]) {
-					break
-				}
-				data[j], data[j-1] = data[j-1], data[j]
-			}
-		}
-	}
-	return false
-}
-
-// breakPatternsOrdered scatters some elements around in an attempt to break some patterns
-// that might cause imbalanced partitions in quicksort.
-func breakPatternsOrdered[E constraints.Ordered](data []E, a, b int) {
-	length := b - a
-	if length >= 8 {
-		random := xorshift(length)
-		modulus := nextPowerOfTwo(length)
-
-		for idx := a + (length/4)*2 - 1; idx <= a+(length/4)*2+1; idx++ {
-			other := int(uint(random.Next()) & (modulus - 1))
-			if other >= length {
-				other -= length
-			}
-			data[idx], data[a+other] = data[a+other], data[idx]
-		}
-	}
-}
-
-// choosePivotOrdered chooses a pivot in data[a:b].
-//
-// [0,8): chooses a static pivot.
-// [8,shortestNinther): uses the simple median-of-three method.
-// [shortestNinther,∞): uses the Tukey ninther method.
-func choosePivotOrdered[E constraints.Ordered](data []E, a, b int) (pivot int, hint sortedHint) {
-	const (
-		shortestNinther = 50
-		maxSwaps        = 4 * 3
-	)
-
-	l := b - a
-
-	var (
-		swaps int
-		i     = a + l/4*1
-		j     = a + l/4*2
-		k     = a + l/4*3
-	)
-
-	if l >= 8 {
-		if l >= shortestNinther {
-			// Tukey ninther method, the idea came from Rust's implementation.
-			i = medianAdjacentOrdered(data, i, &swaps)
-			j = medianAdjacentOrdered(data, j, &swaps)
-			k = medianAdjacentOrdered(data, k, &swaps)
-		}
-		// Find the median among i, j, k and stores it into j.
-		j = medianOrdered(data, i, j, k, &swaps)
-	}
-
-	switch swaps {
-	case 0:
-		return j, increasingHint
-	case maxSwaps:
-		return j, decreasingHint
-	default:
-		return j, unknownHint
-	}
-}
-
-// order2Ordered returns x,y where data[x] <= data[y], where x,y=a,b or x,y=b,a.
-func order2Ordered[E constraints.Ordered](data []E, a, b int, swaps *int) (int, int) {
-	if cmpLess(data[b], data[a]) {
-		*swaps++
-		return b, a
-	}
-	return a, b
-}
-
-// medianOrdered returns x where data[x] is the median of data[a],data[b],data[c], where x is a, b, or c.
-func medianOrdered[E constraints.Ordered](data []E, a, b, c int, swaps *int) int {
-	a, b = order2Ordered(data, a, b, swaps)
-	b, c = order2Ordered(data, b, c, swaps)
-	a, b = order2Ordered(data, a, b, swaps)
-	return b
-}
-
-// medianAdjacentOrdered finds the median of data[a - 1], data[a], data[a + 1] and stores the index into a.
-func medianAdjacentOrdered[E constraints.Ordered](data []E, a int, swaps *int) int {
-	return medianOrdered(data, a-1, a, a+1, swaps)
-}
-
-func reverseRangeOrdered[E constraints.Ordered](data []E, a, b int) {
-	i := a
-	j := b - 1
-	for i < j {
-		data[i], data[j] = data[j], data[i]
-		i++
-		j--
-	}
-}
-
-func swapRangeOrdered[E constraints.Ordered](data []E, a, b, n int) {
-	for i := 0; i < n; i++ {
-		data[a+i], data[b+i] = data[b+i], data[a+i]
-	}
-}
-
-func stableOrdered[E constraints.Ordered](data []E, n int) {
-	blockSize := 20 // must be > 0
-	a, b := 0, blockSize
-	for b <= n {
-		insertionSortOrdered(data, a, b)
-		a = b
-		b += blockSize
-	}
-	insertionSortOrdered(data, a, n)
-
-	for blockSize < n {
-		a, b = 0, 2*blockSize
-		for b <= n {
-			symMergeOrdered(data, a, a+blockSize, b)
-			a = b
-			b += 2 * blockSize
-		}
-		if m := a + blockSize; m < n {
-			symMergeOrdered(data, a, m, n)
-		}
-		blockSize *= 2
-	}
-}
-
-// symMergeOrdered merges the two sorted subsequences data[a:m] and data[m:b] using
-// the SymMerge algorithm from Pok-Son Kim and Arne Kutzner, "Stable Minimum
-// Storage Merging by Symmetric Comparisons", in Susanne Albers and Tomasz
-// Radzik, editors, Algorithms - ESA 2004, volume 3221 of Lecture Notes in
-// Computer Science, pages 714-723. Springer, 2004.
-//
-// Let M = m-a and N = b-n. Wolog M < N.
-// The recursion depth is bound by ceil(log(N+M)).
-// The algorithm needs O(M*log(N/M + 1)) calls to data.Less.
-// The algorithm needs O((M+N)*log(M)) calls to data.Swap.
-//
-// The paper gives O((M+N)*log(M)) as the number of assignments assuming a
-// rotation algorithm which uses O(M+N+gcd(M+N)) assignments. The argumentation
-// in the paper carries through for Swap operations, especially as the block
-// swapping rotate uses only O(M+N) Swaps.
-//
-// symMerge assumes non-degenerate arguments: a < m && m < b.
-// Having the caller check this condition eliminates many leaf recursion calls,
-// which improves performance.
-func symMergeOrdered[E constraints.Ordered](data []E, a, m, b int) {
-	// Avoid unnecessary recursions of symMerge
-	// by direct insertion of data[a] into data[m:b]
-	// if data[a:m] only contains one element.
-	if m-a == 1 {
-		// Use binary search to find the lowest index i
-		// such that data[i] >= data[a] for m <= i < b.
-		// Exit the search loop with i == b in case no such index exists.
-		i := m
-		j := b
-		for i < j {
-			h := int(uint(i+j) >> 1)
-			if cmpLess(data[h], data[a]) {
-				i = h + 1
-			} else {
-				j = h
-			}
-		}
-		// Swap values until data[a] reaches the position before i.
-		for k := a; k < i-1; k++ {
-			data[k], data[k+1] = data[k+1], data[k]
-		}
-		return
-	}
-
-	// Avoid unnecessary recursions of symMerge
-	// by direct insertion of data[m] into data[a:m]
-	// if data[m:b] only contains one element.
-	if b-m == 1 {
-		// Use binary search to find the lowest index i
-		// such that data[i] > data[m] for a <= i < m.
-		// Exit the search loop with i == m in case no such index exists.
-		i := a
-		j := m
-		for i < j {
-			h := int(uint(i+j) >> 1)
-			if !cmpLess(data[m], data[h]) {
-				i = h + 1
-			} else {
-				j = h
-			}
-		}
-		// Swap values until data[m] reaches the position i.
-		for k := m; k > i; k-- {
-			data[k], data[k-1] = data[k-1], data[k]
-		}
-		return
-	}
-
-	mid := int(uint(a+b) >> 1)
-	n := mid + m
-	var start, r int
-	if m > mid {
-		start = n - b
-		r = mid
-	} else {
-		start = a
-		r = m
-	}
-	p := n - 1
-
-	for start < r {
-		c := int(uint(start+r) >> 1)
-		if !cmpLess(data[p-c], data[c]) {
-			start = c + 1
-		} else {
-			r = c
-		}
-	}
-
-	end := n - start
-	if start < m && m < end {
-		rotateOrdered(data, start, m, end)
-	}
-	if a < start && start < mid {
-		symMergeOrdered(data, a, start, mid)
-	}
-	if mid < end && end < b {
-		symMergeOrdered(data, mid, end, b)
-	}
-}
-
-// rotateOrdered rotates two consecutive blocks u = data[a:m] and v = data[m:b] in data:
-// Data of the form 'x u v y' is changed to 'x v u y'.
-// rotate performs at most b-a many calls to data.Swap,
-// and it assumes non-degenerate arguments: a < m && m < b.
-func rotateOrdered[E constraints.Ordered](data []E, a, m, b int) {
-	i := m - a
-	j := b - m
-
-	for i != j {
-		if i > j {
-			swapRangeOrdered(data, m-i, m, j)
-			i -= j
-		} else {
-			swapRangeOrdered(data, m-i, m+j-i, i)
-			j -= i
-		}
-	}
-	// i == j
-	swapRangeOrdered(data, m-i, m, i)
-}

vendor/golang.org/x/net/LICENSE

@@ -0,0 +1,27 @@
+Copyright 2009 The Go Authors.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+   * Redistributions of source code must retain the above copyright
+notice, this list of conditions and the following disclaimer.
+   * Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the following disclaimer
+in the documentation and/or other materials provided with the
+distribution.
+   * Neither the name of Google LLC nor the names of its
+contributors may be used to endorse or promote products derived from
+this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

vendor/golang.org/x/net/PATENTS

@@ -0,0 +1,22 @@
+Additional IP Rights Grant (Patents)
+
+"This implementation" means the copyrightable works distributed by
+Google as part of the Go project.
+
+Google hereby grants to You a perpetual, worldwide, non-exclusive,
+no-charge, royalty-free, irrevocable (except as stated in this section)
+patent license to make, have made, use, offer to sell, sell, import,
+transfer and otherwise run, modify and propagate the contents of this
+implementation of Go, where such license applies only to those patent
+claims, both currently owned or controlled by Google and acquired in
+the future, licensable by Google that are necessarily infringed by this
+implementation of Go.  This grant does not include claims that would be
+infringed only as a consequence of further modification of this
+implementation.  If you or your agent or exclusive licensee institute or
+order or agree to the institution of patent litigation against any
+entity (including a cross-claim or counterclaim in a lawsuit) alleging
+that this implementation of Go or any code incorporated within this
+implementation of Go constitutes direct or contributory patent
+infringement, or inducement of patent infringement, then any patent
+rights granted to you under this License for this implementation of Go
+shall terminate as of the date such litigation is filed.

vendor/golang.org/x/net/context/context.go

@@ -0,0 +1,144 @@
+// Copyright 2014 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Package context defines the Context type, which carries deadlines,
+// cancellation signals, and other request-scoped values across API boundaries
+// and between processes.
+// As of Go 1.7 this package is available in the standard library under the
+// name [context], and migrating to it can be done automatically with [go fix].
+//
+// Incoming requests to a server should create a [Context], and outgoing
+// calls to servers should accept a Context. The chain of function
+// calls between them must propagate the Context, optionally replacing
+// it with a derived Context created using [WithCancel], [WithDeadline],
+// [WithTimeout], or [WithValue].
+//
+// Programs that use Contexts should follow these rules to keep interfaces
+// consistent across packages and enable static analysis tools to check context
+// propagation:
+//
+// Do not store Contexts inside a struct type; instead, pass a Context
+// explicitly to each function that needs it. This is discussed further in
+// https://go.dev/blog/context-and-structs. The Context should be the first
+// parameter, typically named ctx:
+//
+//	func DoSomething(ctx context.Context, arg Arg) error {
+//		// ... use ctx ...
+//	}
+//
+// Do not pass a nil [Context], even if a function permits it. Pass [context.TODO]
+// if you are unsure about which Context to use.
+//
+// Use context Values only for request-scoped data that transits processes and
+// APIs, not for passing optional parameters to functions.
+//
+// The same Context may be passed to functions running in different goroutines;
+// Contexts are safe for simultaneous use by multiple goroutines.
+//
+// See https://go.dev/blog/context for example code for a server that uses
+// Contexts.
+//
+// [go fix]: https://go.dev/cmd/go#hdr-Update_packages_to_use_new_APIs
+package context
+
+import (
+	"context" // standard library's context, as of Go 1.7
+	"time"
+)
+
+// A Context carries a deadline, a cancellation signal, and other values across
+// API boundaries.
+//
+// Context's methods may be called by multiple goroutines simultaneously.
+type Context = context.Context
+
+// Canceled is the error returned by [Context.Err] when the context is canceled
+// for some reason other than its deadline passing.
+var Canceled = context.Canceled
+
+// DeadlineExceeded is the error returned by [Context.Err] when the context is canceled
+// due to its deadline passing.
+var DeadlineExceeded = context.DeadlineExceeded
+
+// Background returns a non-nil, empty Context. It is never canceled, has no
+// values, and has no deadline. It is typically used by the main function,
+// initialization, and tests, and as the top-level Context for incoming
+// requests.
+func Background() Context {
+	return background
+}
+
+// TODO returns a non-nil, empty Context. Code should use context.TODO when
+// it's unclear which Context to use or it is not yet available (because the
+// surrounding function has not yet been extended to accept a Context
+// parameter).
+func TODO() Context {
+	return todo
+}
+
+var (
+	background = context.Background()
+	todo       = context.TODO()
+)
+
+// A CancelFunc tells an operation to abandon its work.
+// A CancelFunc does not wait for the work to stop.
+// A CancelFunc may be called by multiple goroutines simultaneously.
+// After the first call, subsequent calls to a CancelFunc do nothing.
+type CancelFunc = context.CancelFunc
+
+// WithCancel returns a derived context that points to the parent context
+// but has a new Done channel. The returned context's Done channel is closed
+// when the returned cancel function is called or when the parent context's
+// Done channel is closed, whichever happens first.
+//
+// Canceling this context releases resources associated with it, so code should
+// call cancel as soon as the operations running in this [Context] complete.
+func WithCancel(parent Context) (ctx Context, cancel CancelFunc) {
+	return context.WithCancel(parent)
+}
+
+// WithDeadline returns a derived context that points to the parent context
+// but has the deadline adjusted to be no later than d. If the parent's
+// deadline is already earlier than d, WithDeadline(parent, d) is semantically
+// equivalent to parent. The returned [Context.Done] channel is closed when
+// the deadline expires, when the returned cancel function is called,
+// or when the parent context's Done channel is closed, whichever happens first.
+//
+// Canceling this context releases resources associated with it, so code should
+// call cancel as soon as the operations running in this [Context] complete.
+func WithDeadline(parent Context, d time.Time) (Context, CancelFunc) {
+	return context.WithDeadline(parent, d)
+}
+
+// WithTimeout returns WithDeadline(parent, time.Now().Add(timeout)).
+//
+// Canceling this context releases resources associated with it, so code should
+// call cancel as soon as the operations running in this [Context] complete:
+//
+//	func slowOperationWithTimeout(ctx context.Context) (Result, error) {
+//		ctx, cancel := context.WithTimeout(ctx, 100*time.Millisecond)
+//		defer cancel()  // releases resources if slowOperation completes before timeout elapses
+//		return slowOperation(ctx)
+//	}
+func WithTimeout(parent Context, timeout time.Duration) (Context, CancelFunc) {
+	return context.WithTimeout(parent, timeout)
+}
+
+// WithValue returns a derived context that points to the parent Context.
+// In the derived context, the value associated with key is val.
+//
+// Use context Values only for request-scoped data that transits processes and
+// APIs, not for passing optional parameters to functions.
+//
+// The provided key must be comparable and should not be of type
+// string or any other built-in type to avoid collisions between
+// packages using context. Users of WithValue should define their own
+// types for keys. To avoid allocating when assigning to an
+// interface{}, context keys often have concrete type
+// struct{}. Alternatively, exported context key variables' static
+// type should be a pointer or interface.
+func WithValue(parent Context, key, val interface{}) Context {
+	return context.WithValue(parent, key, val)
+}

vendor/golang.org/x/sys/LICENSE

@@ -1,4 +1,4 @@
-Copyright (c) 2009 The Go Authors. All rights reserved.
+Copyright 2009 The Go Authors.
 
 Redistribution and use in source and binary forms, with or without
 modification, are permitted provided that the following conditions are
@@ -10,7 +10,7 @@ notice, this list of conditions and the following disclaimer.
 copyright notice, this list of conditions and the following disclaimer
 in the documentation and/or other materials provided with the
 distribution.
-   * Neither the name of Google Inc. nor the names of its
+   * Neither the name of Google LLC nor the names of its
 contributors may be used to endorse or promote products derived from
 this software without specific prior written permission.
 

vendor/golang.org/x/sys/internal/unsafeheader/unsafeheader.go

@@ -1,30 +0,0 @@
-// Copyright 2020 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// Package unsafeheader contains header declarations for the Go runtime's
-// slice and string implementations.
-//
-// This package allows x/sys to use types equivalent to
-// reflect.SliceHeader and reflect.StringHeader without introducing
-// a dependency on the (relatively heavy) "reflect" package.
-package unsafeheader
-
-import (
-	"unsafe"
-)
-
-// Slice is the runtime representation of a slice.
-// It cannot be used safely or portably and its representation may change in a later release.
-type Slice struct {
-	Data unsafe.Pointer
-	Len  int
-	Cap  int
-}
-
-// String is the runtime representation of a string.
-// It cannot be used safely or portably and its representation may change in a later release.
-type String struct {
-	Data unsafe.Pointer
-	Len  int
-}

vendor/golang.org/x/sys/unix/README.md

@@ -156,7 +156,7 @@ from the generated architecture-specific files listed below, and merge these
 into a common file for each OS.
 
 The merge is performed in the following steps:
-1. Construct the set of common code that is idential in all architecture-specific files.
+1. Construct the set of common code that is identical in all architecture-specific files.
 2. Write this common code to the merged file.
 3. Remove the common code from all architecture-specific files.
 

vendor/golang.org/x/sys/unix/aliases.go

@@ -2,9 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-//go:build (aix || darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris || zos) && go1.9
+//go:build aix || darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris || zos
-// +build aix darwin dragonfly freebsd linux netbsd openbsd solaris zos
-// +build go1.9
 
 package unix
 

vendor/golang.org/x/sys/unix/asm_aix_ppc64.s

@@ -3,7 +3,6 @@
 // license that can be found in the LICENSE file.
 
 //go:build gc
-// +build gc
 
 #include "textflag.h"
 

vendor/golang.org/x/sys/unix/asm_bsd_386.s

@@ -3,8 +3,6 @@
 // license that can be found in the LICENSE file.
 
 //go:build (freebsd || netbsd || openbsd) && gc
-// +build freebsd netbsd openbsd
-// +build gc
 
 #include "textflag.h"
 

vendor/golang.org/x/sys/unix/asm_bsd_amd64.s

@@ -3,8 +3,6 @@
 // license that can be found in the LICENSE file.
 
 //go:build (darwin || dragonfly || freebsd || netbsd || openbsd) && gc
-// +build darwin dragonfly freebsd netbsd openbsd
-// +build gc
 
 #include "textflag.h"
 

vendor/golang.org/x/sys/unix/asm_bsd_arm.s

@@ -3,8 +3,6 @@
 // license that can be found in the LICENSE file.
 
 //go:build (freebsd || netbsd || openbsd) && gc
-// +build freebsd netbsd openbsd
-// +build gc
 
 #include "textflag.h"
 

vendor/golang.org/x/sys/unix/asm_bsd_arm64.s

@@ -3,8 +3,6 @@
 // license that can be found in the LICENSE file.
 
 //go:build (darwin || freebsd || netbsd || openbsd) && gc
-// +build darwin freebsd netbsd openbsd
-// +build gc
 
 #include "textflag.h"
 

vendor/golang.org/x/sys/unix/asm_bsd_ppc64.s

@@ -3,8 +3,6 @@
 // license that can be found in the LICENSE file.
 
 //go:build (darwin || freebsd || netbsd || openbsd) && gc
-// +build darwin freebsd netbsd openbsd
-// +build gc
 
 #include "textflag.h"
 

vendor/golang.org/x/sys/unix/asm_bsd_riscv64.s

@@ -3,8 +3,6 @@
 // license that can be found in the LICENSE file.
 
 //go:build (darwin || freebsd || netbsd || openbsd) && gc
-// +build darwin freebsd netbsd openbsd
-// +build gc
 
 #include "textflag.h"
 

vendor/golang.org/x/sys/unix/asm_linux_386.s

@@ -3,7 +3,6 @@
 // license that can be found in the LICENSE file.
 
 //go:build gc
-// +build gc
 
 #include "textflag.h"
 

vendor/golang.org/x/sys/unix/asm_linux_amd64.s

@@ -3,7 +3,6 @@
 // license that can be found in the LICENSE file.
 
 //go:build gc
-// +build gc
 
 #include "textflag.h"
 

vendor/golang.org/x/sys/unix/asm_linux_arm.s

@@ -3,7 +3,6 @@
 // license that can be found in the LICENSE file.
 
 //go:build gc
-// +build gc
 
 #include "textflag.h"
 

vendor/golang.org/x/sys/unix/asm_linux_arm64.s

@@ -3,9 +3,6 @@
 // license that can be found in the LICENSE file.
 
 //go:build linux && arm64 && gc
-// +build linux
-// +build arm64
-// +build gc
 
 #include "textflag.h"
 

vendor/golang.org/x/sys/unix/asm_linux_loong64.s

@@ -3,9 +3,6 @@
 // license that can be found in the LICENSE file.
 
 //go:build linux && loong64 && gc
-// +build linux
-// +build loong64
-// +build gc
 
 #include "textflag.h"
 

vendor/golang.org/x/sys/unix/asm_linux_mips64x.s

@@ -3,9 +3,6 @@
 // license that can be found in the LICENSE file.
 
 //go:build linux && (mips64 || mips64le) && gc
-// +build linux
-// +build mips64 mips64le
-// +build gc
 
 #include "textflag.h"
 

vendor/golang.org/x/sys/unix/asm_linux_mipsx.s

@@ -3,9 +3,6 @@
 // license that can be found in the LICENSE file.
 
 //go:build linux && (mips || mipsle) && gc
-// +build linux
-// +build mips mipsle
-// +build gc
 
 #include "textflag.h"
 

vendor/golang.org/x/sys/unix/asm_linux_ppc64x.s

@@ -3,9 +3,6 @@
 // license that can be found in the LICENSE file.
 
 //go:build linux && (ppc64 || ppc64le) && gc
-// +build linux
-// +build ppc64 ppc64le
-// +build gc
 
 #include "textflag.h"