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"""
raven.transport.twisted
~~~~~~~~~~~~~~~~~~~~~~~~
:copyright: (c) 2010-2012 by the Sentry Team, see AUTHORS for more details.
:license: BSD, see LICENSE for more details.
"""
from __future__ import absolute_import
from raven.utils.compat import BytesIO
from raven.transport.base import AsyncTransport
from raven.transport.http import HTTPTransport
try:
from twisted.web.client import (
Agent, FileBodyProducer, HTTPConnectionPool, ResponseNeverReceived,
readBody,
)
from twisted.web.http_headers import Headers
has_twisted = True
except ImportError:
has_twisted = False
class TwistedHTTPTransport(AsyncTransport, HTTPTransport):
scheme = ['twisted+http', 'twisted+https']
def __init__(self, *args, **kwargs):
if not has_twisted:
raise ImportError('TwistedHTTPTransport requires twisted.web.')
super(TwistedHTTPTransport, self).__init__(*args, **kwargs)
# Import reactor as late as possible.
from twisted.internet import reactor
# Use a persistent connection pool.
self._agent = Agent(reactor, pool=HTTPConnectionPool(reactor))
def async_send(self, url, data, headers, success_cb, failure_cb):
d = self._agent.request(
b"POST", url,
bodyProducer=FileBodyProducer(BytesIO(data)),
headers=Headers(dict((k, [v]) for k, v in headers.items()))
)
def on_failure(failure):
ex = failure.check(ResponseNeverReceived)
if ex:
# ResponseNeverReceived wraps the actual error(s).
failure_cb([f.value for f in failure.value.reasons])
else:
failure_cb(failure.value)
def on_success(response):
"""
Success only means that the request succeeded, *not* that the
actual submission was successful.
"""
if response.code == 200:
success_cb()
else:
def on_error_body(body):
failure_cb(Exception(response.code, response.phrase, body))
return readBody(response).addCallback(
on_error_body,
)
d.addCallback(
on_success,
).addErrback(
on_failure,
)