def log_curl_request(self, method, url, kwargs): curl = ['curl -i -X %s' % method] for (key, value) in kwargs['headers'].items(): header = '-H \'%s: %s\'' % (key, value) curl.append(header) conn_params_fmt = [ ('key_file', '--key %s'), ('cert_file', '--cert %s'), ('cacert', '--cacert %s'), ] for (key, fmt) in conn_params_fmt: value = self.connection_kwargs.get(key) if value: curl.append(fmt % value) if self.connection_kwargs.get('insecure'): curl.append('-k') if kwargs.get('body') is not None: curl.append('-d \'%s\'' % kwargs['body']) curl.append('%s%s' % (self.endpoint, url)) LOG.debug(strutils.safe_encode(' '.join(curl)))
def log_http_response(resp, body=None): status = (resp.version / 10.0, resp.status, resp.reason) dump = ['\nHTTP/%.1f %s %s' % status] dump.extend(['%s: %s' % (k, v) for k, v in resp.getheaders()]) dump.append('') if body: dump.extend([body, '']) LOG.debug(strutils.safe_encode('\n'.join(dump)))
def _http_request(self, url, method, **kwargs): """Send an http request with the specified characteristics. Wrapper around httplib.HTTP(S)Connection.request to handle tasks such as setting headers and error handling. """ # Copy the kwargs so we can reuse the original in case of redirects kwargs['headers'] = copy.deepcopy(kwargs.get('headers', {})) kwargs['headers'].setdefault('User-Agent', USER_AGENT) if self.auth_token: kwargs['headers'].setdefault('Authorization', self.auth_token) self.log_curl_request(method, url, kwargs) conn = self.get_connection() # Note(flaper87): Before letting headers / url fly, # they should be encoded otherwise httplib will # complain. If we decide to rely on python-request # this wont be necessary anymore. kwargs['headers'] = self.encode_headers(kwargs['headers']) try: if self.endpoint_path: url = '%s/%s' % (self.endpoint_path, url) conn_url = posixpath.normpath(url) # Note(flaper87): Ditto, headers / url # encoding to make httplib happy. conn_url = strutils.safe_encode(conn_url) if kwargs['headers'].get('Transfer-Encoding') == 'chunked': conn.putrequest(method, conn_url) for header, value in kwargs['headers'].items(): conn.putheader(header, value) conn.endheaders() chunk = kwargs['body'].read(CHUNKSIZE) # Chunk it, baby... while chunk: conn.send('%x\r\n%s\r\n' % (len(chunk), chunk)) chunk = kwargs['body'].read(CHUNKSIZE) conn.send('0\r\n\r\n') else: conn.request(method, conn_url, **kwargs) resp = conn.getresponse() except socket.gaierror as e: message = "Error finding address for %s: %s" % ( self.endpoint_hostname, e) raise exception.InvalidEndpoint(message=message) except (socket.error, socket.timeout) as e: endpoint = self.endpoint message = "Error communicating with %(endpoint)s %(e)s" % locals() raise exception.CommunicationError(message=message) body_iter = ResponseBodyIterator(resp) # Read body into string if it isn't obviously image data if resp.getheader('content-type', None) != 'application/octet-stream': body_str = ''.join([body for body in body_iter]) self.log_http_response(resp, body_str) body_iter = StringIO.StringIO(body_str) else: self.log_http_response(resp) if 400 <= resp.status < 600: LOG.error("Request returned failure status.") raise exception.from_response(resp, body_str) elif resp.status in (301, 302, 305): # Redirected. Reissue the request to the new location. return self._http_request(resp['location'], method, **kwargs) elif resp.status == 300: raise exception.from_response(resp) return resp, body_iter