[core] Fix: List all configured channel permissions

in order to fix bot permission check when bot has not joined own channel

Signed-off-by: Knut Ahlers <knut@ahlers.me>

configEditor_general.go

@@ -186,12 +186,15 @@ func configEditorHandleGeneralDeleteAuthToken(w http.ResponseWriter, r *http.Req
 }
 
 func configEditorHandleGeneralGet(w http.ResponseWriter, r *http.Request) {
-	var (
-		channelScopes = make(map[string][]string)
-		err           error
-	)
+	channelScopes := make(map[string][]string)
 
-	for _, ch := range config.Channels {
+	channels, err := accessService.ListPermittedChannels()
+	if err != nil {
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+		return
+	}
+
+	for _, ch := range channels {
 		if channelScopes[ch], err = accessService.GetChannelPermissions(ch); err != nil {
 			http.Error(w, err.Error(), http.StatusInternalServerError)
 			return

internal/service/access/access.go

@@ -195,6 +195,20 @@ func (s Service) HasPermissionsForChannel(channel string, scopes ...string) (boo
 	return true, nil
 }
 
+func (s Service) ListPermittedChannels() ([]string, error) {
+	var perms []extendedPermission
+	if err := s.db.DB().Find(&perms).Error; err != nil {
+		return nil, errors.Wrap(err, "listing permissions")
+	}
+
+	var out []string
+	for _, perm := range perms {
+		out = append(out, perm.Channel)
+	}
+
+	return out, nil
+}
+
 func (s Service) RemoveExendedTwitchCredentials(channel string) error {
 	return errors.Wrap(
 		s.db.DB().Delete(&extendedPermission{}, "channel = ?", channel).Error,