Additional APIs for Focalboard multi-product architecture (#20608)

- adds HasPermissionToChannel to permissions service
- adds GetChannelsForTeamForUser to channel service

app/channel.go

@@ -40,6 +40,10 @@ func (s *channelsWrapper) GetChannelMember(channelID string, userID string) (*mo
 	return s.srv.getChannelMember(context.Background(), channelID, userID)
 }
 
+func (s *channelsWrapper) GetChannelsForTeamForUser(teamID string, userID string, opts *model.ChannelSearchOpts) (model.ChannelList, *model.AppError) {
+	return s.srv.getChannelsForTeamForUser(teamID, userID, opts)
+}
+
 // DefaultChannelNames returns the list of system-wide default channel names.
 //
 // By default the list will be (not necessarily in this order):
@@ -1818,8 +1822,8 @@ func (a *App) GetChannelByNameForTeamName(channelName, teamName string, includeD
 	return result, nil
 }
 
-func (a *App) GetChannelsForTeamForUser(teamID string, userID string, opts *model.ChannelSearchOpts) (model.ChannelList, *model.AppError) {
+func (s *Server) getChannelsForTeamForUser(teamID string, userID string, opts *model.ChannelSearchOpts) (model.ChannelList, *model.AppError) {
-	list, err := a.Srv().Store.Channel().GetChannels(teamID, userID, opts)
+	list, err := s.Store.Channel().GetChannels(teamID, userID, opts)
 	if err != nil {
 		var nfErr *store.ErrNotFound
 		switch {
@@ -1833,6 +1837,10 @@ func (a *App) GetChannelsForTeamForUser(teamID string, userID string, opts *mode
 	return list, nil
 }
 
+func (a *App) GetChannelsForTeamForUser(teamID string, userID string, opts *model.ChannelSearchOpts) (model.ChannelList, *model.AppError) {
+	return a.Srv().getChannelsForTeamForUser(teamID, userID, opts)
+}
+
 func (a *App) GetChannelsForTeamForUserWithCursor(teamID string, userID string, opts *model.ChannelSearchOpts, afterChannelID string) (model.ChannelList, *model.AppError) {
 	list, err := a.Srv().Store.Channel().GetChannelsWithCursor(teamID, userID, opts, afterChannelID)
 	if err != nil {

app/permissions.go

@@ -27,6 +27,10 @@ func (s *permissionsServiceWrapper) HasPermissionToTeam(userID string, teamID st
 	return s.app.HasPermissionToTeam(userID, teamID, permission)
 }
 
+func (s *permissionsServiceWrapper) HasPermissionToChannel(askingUserID string, channelID string, permission *model.Permission) bool {
+	return s.app.HasPermissionToChannel(askingUserID, channelID, permission)
+}
+
 func (a *App) ResetPermissionsSystem() *model.AppError {
 	// Reset all Teams to not have a scheme.
 	if err := a.Srv().Store.Team().ResetAllTeamSchemes(); err != nil {

product/api.go

@@ -41,6 +41,7 @@ type PostService interface {
 // The service shall be registered via app.PermissionKey service key.
 type PermissionService interface {
 	HasPermissionToTeam(userID, teamID string, permission *model.Permission) bool
+	HasPermissionToChannel(askingUserID string, channelID string, permission *model.Permission) bool
 }
 
 // ClusterService enables to publish cluster events. In addition to that, It's being used for
@@ -61,6 +62,7 @@ type ChannelService interface {
 	GetDirectChannel(userID1, userID2 string) (*model.Channel, *model.AppError)
 	GetChannelByID(channelID string) (*model.Channel, *model.AppError)
 	GetChannelMember(channelID string, userID string) (*model.ChannelMember, *model.AppError)
+	GetChannelsForTeamForUser(teamID string, userID string, opts *model.ChannelSearchOpts) (model.ChannelList, *model.AppError)
 }
 
 // LicenseService provides license related utilities.