app_confbridge: Make explicitly stop MOH if a user is kicked or hangs up while MOH is playing.

When MOH is playing to a user in a conference and the user is kicked or
hangs up from the conference then the AMI MusicOnHoldStop events didn't
happen.  (Asterisk v11 AMI event: MusicOnHold, state:Stop)

(closes issue ASTERISK-23311)
Reported by: Benjamin Keith Ford

Review: https://reviewboard.asterisk.org/r/3306/
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Merged revisions 410490 from http://svn.asterisk.org/svn/asterisk/branches/11
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Merged revisions 410491 from http://svn.asterisk.org/svn/asterisk/branches/12


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@410492 65c4cc65-6c06-0410-ace0-fbb531ad65f3

apps/confbridge/conf_state.c

@@ -74,6 +74,9 @@ void conf_default_join_waitmarked(struct confbridge_user *user)
 void conf_default_leave_waitmarked(struct confbridge_user *user)
 {
 	conf_remove_user_waiting(user->conference, user);
+	if (user->playing_moh) {
+		conf_moh_stop(user);
+	}
 }
 
 void conf_change_state(struct confbridge_user *user, struct confbridge_state *newstate)

apps/confbridge/conf_state_inactive.c

@@ -66,7 +66,7 @@ static void join_marked(struct confbridge_user *user)
 
 static void leave_waitmarked(struct confbridge_user *user)
 {
-	conf_remove_user_waiting(user->conference, user);
+	conf_default_leave_waitmarked(user);
 	if (user->conference->waitingusers == 0) {
 		conf_change_state(user, CONF_STATE_EMPTY);
 	}

apps/confbridge/conf_state_single.c

@@ -72,6 +72,9 @@ static void join_marked(struct confbridge_user *user)
 static void leave_unmarked(struct confbridge_user *user)
 {
 	conf_remove_user_active(user->conference, user);
+	if (user->playing_moh) {
+		conf_moh_stop(user);
+	}
 
 	if (user->conference->waitingusers) {
 		conf_change_state(user, CONF_STATE_INACTIVE);

apps/confbridge/conf_state_single_marked.c

@@ -71,6 +71,9 @@ static void join_marked(struct confbridge_user *user)
 static void leave_marked(struct confbridge_user *user)
 {
 	conf_remove_user_marked(user->conference, user);
+	if (user->playing_moh) {
+		conf_moh_stop(user);
+	}
 
 	conf_change_state(user, CONF_STATE_EMPTY);
 }