Initial commit

internal/moon/newChatMembers.go

@@ -0,0 +1,96 @@
+package moon
+
+import (
+	"fmt"
+	"slices"
+	"time"
+
+	"github.com/NicoNex/echotron/v3"
+)
+
+// newChatMembers parses NewChatMember event.
+func newChatMembers(msg *echotron.Update) {
+	// If there is no such chatid, means that no such cache too.
+	Log.Debugf(
+		"Add %s %s (%d) to list of known chats",
+		msg.Message.Chat.Type,
+		msg.Message.Chat.Title,
+		msg.Message.Chat.ID,
+	)
+
+	ChatList = append(ChatList, msg.Message.Chat.ID)
+	slices.Sort(ChatList)
+	ChatList = slices.Compact(ChatList)
+
+	AddChat(&msg.Message.Chat)
+
+	for _, user := range msg.Message.NewChatMembers {
+		Log.Infof(
+			"User %s %s (username = %s, id = %d) joined %s %s (%d)",
+			user.FirstName,
+			user.LastName,
+			user.Username,
+			user.ID,
+			msg.Message.Chat.Type,
+			msg.Message.Chat.Title,
+			msg.Message.Chat.ID,
+		)
+
+		AddUser(user)
+
+		casBanned, err := CasCheckID(user.ID)
+
+		if err != nil {
+			Log.Error(err)
+		}
+
+		// Ban user if cas report it as banned.
+		if casBanned {
+			Log.Infof(
+				"Ban user %s %s (username = %s, id = %d) in %s %s (%d) by CAS blacklist",
+				user.FirstName,
+				user.LastName,
+				user.Username,
+				user.ID,
+				msg.Message.Chat.Type,
+				msg.Message.Chat.Title,
+				msg.Message.Chat.ID,
+			)
+
+			squash(
+				msg.Message.Chat.ID,
+				user.ID,
+			)
+		}
+
+		// Do not return on prev. step.
+
+		Log.Infof(
+			"Skip banning user %s %s (username = %s, id = %d) in %s %s (%d) because it was not found in CAS blacklist",
+			user.FirstName,
+			user.LastName,
+			user.Username,
+			user.ID,
+			msg.Message.Chat.Type,
+			msg.Message.Chat.Title,
+			msg.Message.Chat.ID,
+		)
+
+		Log.Infof(
+			"Add user %s %s (username = %s, id = %d) in %s %s (%d) to NewMember DB",
+			user.FirstName,
+			user.LastName,
+			user.Username,
+			user.ID,
+			msg.Message.Chat.Type,
+			msg.Message.Chat.Title,
+			msg.Message.Chat.ID,
+		)
+
+		key := fmt.Sprintf("%d+%d", msg.Message.Chat.ID, user.ID)
+		NewMembers.Set(key, time.Now().Unix(), 1*time.Minute)
+		PendingCASMembers.Set(key, time.Now().Unix(), 30*time.Minute)
+	}
+}
+
+/* vim: set ft=go noet ai ts=4 sw=4 sts=4: */