Pull out gitlab trigger validation into validator class

util/config/validators/validate_gitlab_trigger.py

@@ -0,0 +1,32 @@
+from app import app
+from oauth.services.gitlab import GitLabOAuthService
+from util.config.validators import BaseValidator, ConfigValidationException
+
+class GitLabTriggerValidator(BaseValidator):
+  name = "gitlab-trigger"
+
+  @classmethod
+  def validate(cls, config, user, user_password):
+    """ Validates the OAuth credentials and API endpoint for a GitLab service. """
+    github_config = config.get('GITLAB_TRIGGER_CONFIG')
+    if not github_config:
+      raise ConfigValidationException('Missing GitLab client id and client secret')
+
+    endpoint = github_config.get('GITLAB_ENDPOINT')
+    if not endpoint:
+      raise ConfigValidationException('Missing GitLab Endpoint')
+
+    if endpoint.find('http://') != 0 and endpoint.find('https://') != 0:
+      raise ConfigValidationException('GitLab Endpoint must start with http:// or https://')
+
+    if not github_config.get('CLIENT_ID'):
+      raise ConfigValidationException('Missing Client ID')
+
+    if not github_config.get('CLIENT_SECRET'):
+      raise ConfigValidationException('Missing Client Secret')
+
+    client = app.config['HTTPCLIENT']
+    oauth = GitLabOAuthService(config, 'GITLAB_TRIGGER_CONFIG')
+    result = oauth.validate_client_id_and_secret(client, app.config)
+    if not result:
+      raise ConfigValidationException('Invalid client id or client secret')