Pr 9039 (#9187)

* MM-11065: Allow to search and get archived channels from the API

* Fixing more tests

* Add some unit tests

* Add includeDeleted parameter to session permissions check function

* More test fixing

* Adding archive channels list in channels search

* Add restriction for archived channel edition

* Reverting permissions checks modification

* Changed the query parameter to include_deleted

* Enable search archive channels as true by default

* Adding tests for verify search on deleted channels

* Allowing to override archive channels during the imports

* Fixed test

* Search in archive channels from the API must be explicitly requested

* Removing includeDeleted parameter from GetChannelByName and GetChannelByNameForTeam

* Back to ViewArchivedChannels config

* Fixing tests

* Reverting GetChannelByName parameter

* Add include deleted parameter on GetChannel functions in plugins api

* Fixing tests

api4/channel.go

@@ -589,7 +589,7 @@ func getChannelsForTeamForUser(c *Context, w http.ResponseWriter, r *http.Reques
 		return
 	}
 
-	channels, err := c.App.GetChannelsForUser(c.Params.TeamId, c.Params.UserId)
+	channels, err := c.App.GetChannelsForUser(c.Params.TeamId, c.Params.UserId, false)
 	if err != nil {
 		c.Err = err
 		return
@@ -709,7 +709,9 @@ func getChannelByName(c *Context, w http.ResponseWriter, r *http.Request) {
 	var channel *model.Channel
 	var err *model.AppError
 
-	if channel, err = c.App.GetChannelByName(c.Params.ChannelName, c.Params.TeamId); err != nil {
+	includeDeleted := r.URL.Query().Get("include_deleted") == "true"
+
+	if channel, err = c.App.GetChannelByName(c.Params.ChannelName, c.Params.TeamId, includeDeleted); err != nil {
 		c.Err = err
 		return
 	}
@@ -744,7 +746,9 @@ func getChannelByNameForTeamName(c *Context, w http.ResponseWriter, r *http.Requ
 	var channel *model.Channel
 	var err *model.AppError
 
-	if channel, err = c.App.GetChannelByNameForTeamName(c.Params.ChannelName, c.Params.TeamName); err != nil {
+	includeDeleted := r.URL.Query().Get("include_deleted") == "true"
+
+	if channel, err = c.App.GetChannelByNameForTeamName(c.Params.ChannelName, c.Params.TeamName, includeDeleted); err != nil {
 		c.Err = err
 		return
 	}