Guest accounts feature (#11428)

* MM-14139: Creating permissions for invite/promote/demote guests (#10778)

* MM-14139: Creating permissions for invite/promote/demote guests

* Fixing tests

* Adding invite guest api endpoint (#10792)

* Adding invite guest api endpoint

* Adding i18n

* Adding some tests

* WIP

* Migrating Token.Extra info to bigger size (2048)

* Fixing tests

* Adding client function for invite guests

* Adding send guests invites tests

* Renaming file from guest to guest_invite

* Adding Promote/Demote users from/to guest endpoints (#10791)

* Adding Promote/Demote users from/to guest endpoints

* Adding i18n translations

* Adding the client functions

* Using getQueryBuilder function

* Addressing PR review comments

* Adding default channels to users on promte from guest (#10851)

* Adding default channels to users on promte from guest

* Addressing PR review comments

* Fixing merge problems

* Sending websockets events on promote/demote (#11403)

* Sending websockets events on promote/demote

* Fixing merge problems

* Fixing govet shadowing problem

* Fixing feature branch tests

* Avoiding leaking users data through websockets for guest accounts (#11489)

* Avoiding leaking users data through websockets for guest accounts

* Adding tests and fixing code error

* Fixing i18n

* Allow to enable/disable guests and other extra config settings (#11481)

* Allow to enable/disable guests and other extra config settings

* Fixing tests and moving license and config validation to api level

* Update api4/role_test.go

Co-Authored-By: George Goldberg <george@gberg.me>

* Update api4/role_test.go

Co-Authored-By: George Goldberg <george@gberg.me>

* Fixing typo

* fixing tests

* Managing correctly the guest channel leave behavior (#11578)

* MM-15134: Removing guests from teams or system on leave channels if needed

* WIP

* No deactivating the guest user when leave the last team

* Adding a couple of tests

* Fixing shadow variables

* Fixing tests

* fixing tests

* fixing shadow variables

* Adding guest counts for channel stats (#11646)

* Adding guest counts for channel stats

* Adding tests

* Fixing tests

* Fixing guest domain restrictions (#11660)

* Adding needed migration for the database

* Fixing migration

app/session.go

@@ -93,6 +93,27 @@ func (a *App) GetSessions(userId string) ([]*model.Session, *model.AppError) {
 	return a.Srv.Store.Session().GetSessions(userId)
 }
 
+func (a *App) UpdateSessionsIsGuest(userId string, isGuest bool) {
+	sessions, err := a.Srv.Store.Session().GetSessions(userId)
+	if err != nil {
+		mlog.Error(fmt.Sprintf("Unable to get user sessions: userId=%s err=%s", userId, err.Error()))
+	}
+
+	for _, session := range sessions {
+		if isGuest {
+			session.AddProp(model.SESSION_PROP_IS_GUEST, "true")
+		} else {
+			session.AddProp(model.SESSION_PROP_IS_GUEST, "false")
+		}
+		err := a.Srv.Store.Session().UpdateProps(session)
+		if err != nil {
+			mlog.Error(fmt.Sprintf("Unable to update isGuest session: %s", err.Error()))
+			continue
+		}
+		a.AddSessionToCache(session)
+	}
+}
+
 func (a *App) RevokeAllSessions(userId string) *model.AppError {
 	sessions, err := a.Srv.Store.Session().GetSessions(userId)
 	if err != nil {
@@ -329,6 +350,11 @@ func (a *App) createSessionForUserAccessToken(tokenString string) (*model.Sessio
 	if user.IsBot {
 		session.AddProp(model.SESSION_PROP_IS_BOT, model.SESSION_PROP_IS_BOT_VALUE)
 	}
+	if user.IsGuest() {
+		session.AddProp(model.SESSION_PROP_IS_GUEST, "true")
+	} else {
+		session.AddProp(model.SESSION_PROP_IS_GUEST, "false")
+	}
 	session.SetExpireInDays(model.SESSION_USER_ACCESS_TOKEN_EXPIRY)
 
 	session, err = a.Srv.Store.Session().Save(session)