discussion.py 文件源码

def check_url_or_none(self, url):
        if url == '':
            url = None
        if url is not None:
            from urllib.parse import urlparse
            parsed_url = urlparse(url)
            from pyramid.httpexceptions import HTTPBadRequest
            if not parsed_url.scheme:
                raise HTTPBadRequest(
                    "The homepage url does not have a scheme. Must be either http or https"
                )

            if parsed_url.scheme not in (u'http', u'https'):
                raise HTTPBadRequest(
                    "The url has an incorrect scheme. Only http and https are accepted for homepage url"
                )
        return url