bottle.py 文件源码

def url(self):
        """ Full URL as requested by the client (computed).

            This value is constructed out of different environment variables
            and includes scheme, host, port, scriptname, path and query string. 
        """
        scheme = self.environ.get('wsgi.url_scheme', 'http')
        host   = self.environ.get('HTTP_X_FORWARDED_HOST')
        host   = host or self.environ.get('HTTP_HOST', None)
        if not host:
            host = self.environ.get('SERVER_NAME')
            port = self.environ.get('SERVER_PORT', '80')
            if (scheme, port) not in (('https','443'), ('http','80')):
                host += ':' + port
        parts = (scheme, host, urlquote(self.fullpath), self.query_string, '')
        return urlunsplit(parts)