GAE: ChunkedEncodingError: ('Connection broken: IncompleteRead(207 bytes read)', IncompleteRead(207 bytes read))

[wooyek]

There seem to be a problem with updated requests library on Google App Engine.

Exception on /_social/callback/Github [GET]
Traceback (most recent call last):
  File "/base/data/home/apps/s~flask-social-blueprint/3.389521229691342073/lib/flask/app.py", line 1817, in wsgi_app
    response = self.full_dispatch_request()
  File "/base/data/home/apps/s~flask-social-blueprint/3.389521229691342073/lib/flask/app.py", line 1477, in full_dispatch_request
    rv = self.handle_user_exception(e)
  File "/base/data/home/apps/s~flask-social-blueprint/3.389521229691342073/lib/flask/app.py", line 1381, in handle_user_exception
    reraise(exc_type, exc_value, tb)
  File "/base/data/home/apps/s~flask-social-blueprint/3.389521229691342073/lib/flask/app.py", line 1475, in full_dispatch_request
    rv = self.dispatch_request()
  File "/base/data/home/apps/s~flask-social-blueprint/3.389521229691342073/lib/flask/app.py", line 1461, in dispatch_request
    return self.view_functions[rule.endpoint](**req.view_args)
  File "/base/data/home/apps/s~flask-social-blueprint/3.389521229691342073/lib/flask_social_blueprint/core.py", line 44, in callback
    return provider.authorized_handler(self.login)(provider=provider)
  File "/base/data/home/apps/s~flask-social-blueprint/3.389521229691342073/lib/flask_oauth.py", line 433, in decorated
    return f(*((data,) + args), **kwargs)
  File "/base/data/home/apps/s~flask-social-blueprint/3.389521229691342073/lib/flask_social_blueprint/core.py", line 54, in login
    profile = provider.get_profile(raw_data)
  File "/base/data/home/apps/s~flask-social-blueprint/3.389521229691342073/lib/flask_social_blueprint/providers.py", line 179, in get_profile
    r = requests.get('https://api.github.com/user?access_token={}'.format(access_token))
  File "/base/data/home/apps/s~flask-social-blueprint/3.389521229691342073/lib/requests/api.py", line 67, in get
    return request('get', url, params=params, **kwargs)
  File "/base/data/home/apps/s~flask-social-blueprint/3.389521229691342073/lib/requests/api.py", line 53, in request
    return session.request(method=method, url=url, **kwargs)
  File "/base/data/home/apps/s~flask-social-blueprint/3.389521229691342073/lib/requests/sessions.py", line 468, in request
    resp = self.send(prep, **send_kwargs)
  File "/base/data/home/apps/s~flask-social-blueprint/3.389521229691342073/lib/requests/sessions.py", line 608, in send
    r.content
  File "/base/data/home/apps/s~flask-social-blueprint/3.389521229691342073/lib/requests/models.py", line 737, in content
    self._content = bytes().join(self.iter_content(CONTENT_CHUNK_SIZE)) or bytes()
  File "/base/data/home/apps/s~flask-social-blueprint/3.389521229691342073/lib/requests/models.py", line 663, in generate
    raise ChunkedEncodingError(e)
ChunkedEncodingError: ('Connection broken: IncompleteRead(207 bytes read)', IncompleteRead(207 bytes read))

I may or may not be connected to a InsecurePlatformWarning:

/base/data/home/apps/s~flask-social-blueprint/3.389521229691342073/lib/requests/packages/urllib3/util/ssl_.py:120: InsecurePlatformWarning: A true SSLContext object is not available. This prevents urllib3 from configuring SSL appropriately and may cause certain SSL connections to fail. For more information, see https://urllib3.readthedocs.org/en/latest/security.html#insecureplatformwarning.

Solution:

https://urllib3.readthedocs.org/en/latest/security.html#pyopenssl

results:

Traceback (most recent call last):
  File "/base/data/home/runtimes/python27/python27_lib/versions/1/google/appengine/runtime/wsgi.py", line 240, in Handle
    handler = _config_handle.add_wsgi_middleware(self._LoadHandler())
  File "/base/data/home/runtimes/python27/python27_lib/versions/1/google/appengine/runtime/wsgi.py", line 299, in _LoadHandler
    handler, path, err = LoadObject(self._handler)
  File "/base/data/home/runtimes/python27/python27_lib/versions/1/google/appengine/runtime/wsgi.py", line 85, in LoadObject
    obj = __import__(path[0])
  File "/base/data/home/apps/s~flask-social-blueprint/3.389521383891920475/main.py", line 74, in <module>
    import urllib3.contrib.pyopenssl
  File "/base/data/home/apps/s~flask-social-blueprint/3.389521383891920475/lib/urllib3/contrib/pyopenssl.py", line 49, in <module>
    from ndg.httpsclient.ssl_peer_verification import SUBJ_ALT_NAME_SUPPORT
ImportError: No module named ndg.httpsclient.ssl_peer_verification

Solution http://stackoverflow.com/a/29507367/260480

e33d26a

Have no effect.

[gjgd]

I'm having the same problem:
ChunkedEncodingError on GAE.
No InsecurePlatformWarning though. I'm only trying to access the web service with http, not https

[cnicodeme]

I'm having the same issue on GAE, try this solution : kennethreitz/requests@master...agfor:master

From : urllib3/urllib3#618

[anotherstarburst]

@cnicodeme You sir are a legend! Solved this issue for me - thank you!

[ashmishra]

In situations where "requests" is a dependency by other packages , you may not be easily able to provide your own library
This code patches the existing classes, and you can call it from your init.py

gae_request_incompleteReadFix.txt

Tested with GAE
Works!