class WebhookRequestParserBase(object):
    """Abstract parent class for git service parsers. Contains helper
    methods."""

    def __init__(self, config):
        self._config = config

    def get_matching_repo_configs(self, urls, action):
        """Iterates over the various repo URLs provided as argument (git://,
        ssh:// and https:// for the repo) and compare them to any repo URL
        specified in the config"""

        configs = []
        for url in urls:
            for repo_config in self._config['repositories']:
                if repo_config in configs:
                    continue
                if repo_config.get('match-url', repo_config.get('url')) == url:
                    configs.append(repo_config)
                elif 'url_without_usernme' in repo_config and repo_config['url_without_usernme'] == url:
                    configs.append(repo_config)

        if len(configs) == 0:
            action.log_warning('The URLs references in the webhook did not match any repository entry in the config. For this webhook to work, make sure you have at least one repository configured with one of the following URLs; %s' % ', '.join(urls))

        return configs

    def validate_request(self, request_headers, request_body, repo_configs, action):
        return True