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('X-Auth-Token', self.auth_token)
if self.identity_headers:
for k, v in self.identity_headers.iteritems():
kwargs['headers'].setdefault(k, v)
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 exc.InvalidEndpoint(message=message)
except (socket.error, socket.timeout) as e:
endpoint = self.endpoint
message = "Error communicating with %(endpoint)s %(e)s" % locals()
raise exc.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([chunk for chunk 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 exc.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 exc.from_response(resp)
return resp, body_iter
