Initial commit

internal/moon/runAndBan.go

@@ -0,0 +1,52 @@
+package moon
+
+import "time"
+
+func RunAndBan() {
+	for {
+		// If user have both events, he is not spammer. So wipe him from unchecked events list, just for sure.
+		for _, chatid := range ChatList {
+			for _, AppearedMember := range ListAppearedMembers(chatid) {
+				for _, NewMember := range ListNewMembers(chatid) {
+					if AppearedMember == NewMember {
+						Log.Infof("Skip banning %d, because it has both events newMember and updateMember")
+						DeleteAppearedMember(chatid, AppearedMember)
+						DeleteNewMember(chatid, NewMember)
+					}
+				}
+			}
+		}
+
+		currentTime := time.Now().Unix()
+
+		// We would like to process only events that definitely older than 10 seconds!
+		for _, chatid := range ChatList {
+			for _, AppearedMember := range ListAppearedMembers(chatid) {
+				eventTimestamp := FindAppearedMember(chatid, AppearedMember)
+				eventTimeDelta := currentTime - eventTimestamp
+
+				// Looks like it is spammer!
+				if eventTimeDelta > 10 {
+					Log.Infof("Ban user that have no newChatMember message since chatMemberUpdated for more than 10 seconds")
+
+					squash(chatid, AppearedMember)
+				}
+			}
+
+			for _, NewMember := range ListNewMembers(chatid) {
+				eventTimestamp := FindAppearedMember(chatid, NewMember)
+				eventTimeDelta := currentTime - eventTimestamp
+
+				// Totally new members should not have chatMemberUpdated events.
+				if eventTimeDelta > 15 {
+					Log.Debugf("Clean newChatMember event record older than 10 seconds for user %s", NewMember)
+					DeleteNewMember(chatid, NewMember)
+				}
+			}
+		}
+
+		time.Sleep(10 * time.Second)
+	}
+}
+
+/* vim: set ft=go noet ai ts=4 sw=4 sts=4: */