[tor-bugs] #11218 [BridgeDB]: bridgedb.HTTPServer.ReCaptchaProtectedResource.checkSolution() doesn't expect a deferred

["Tor Bug Tracker & Wiki" <blackhole@xxxxxxxxxxxxxx>]

#11218: bridgedb.HTTPServer.ReCaptchaProtectedResource.checkSolution() doesn't
expect a deferred
--------------------------------------------------+----------------------
 Reporter:  isis                                  |          Owner:  isis
     Type:  defect                                |         Status:  new
 Priority:  blocker                               |      Milestone:
Component:  BridgeDB                              |        Version:
 Keywords:  bridgedb-https, bridgedb-0.1.6, easy  |  Actual Points:
Parent ID:                                        |         Points:
--------------------------------------------------+----------------------
 From bridgedb-0.1.5,
 `bridgedb.HTTPServer.ReCaptchaProtectedResource.checkSolution()` expects a
 `bool` for the `solution` internal variable, not a `t.i.defer.Deferred`:

 {{{
 Unhandled Error
 Traceback (most recent call last):
   File "/usr/lib/python2.7/dist-packages/twisted/web/http.py", line 1349,
 in dataReceived
     finishCallback(data[contentLength:])
   File "/usr/lib/python2.7/dist-packages/twisted/web/http.py", line 1563,
 in _finishRequestBody
     self.allContentReceived()
   File "/usr/lib/python2.7/dist-packages/twisted/web/http.py", line 1618,
 in allContentReceived
     req.requestReceived(command, path, version)
   File "/usr/lib/python2.7/dist-packages/twisted/web/http.py", line 773,
 in requestReceived
     self.process()
 --- <exception caught here> ---
   File "/usr/lib/python2.7/dist-packages/twisted/web/server.py", line 132,
 in process
     self.render(resrc)
   File "/usr/lib/python2.7/dist-packages/twisted/web/server.py", line 167,
 in render
     body = resrc.render(self)
   File "/usr/lib/python2.7/dist-packages/twisted/web/resource.py", line
 216, in render
     return m(request)
   File "/srv/bridges.torproject.org/local/lib/python2.7/site-
 packages/bridgedb-0.1.5_dirty-py2.7.egg/bridgedb/HTTPServer.py", line 470,
 in render_POST
     return CaptchaProtectedResource.render_POST(self, request)
   File "/srv/bridges.torproject.org/local/lib/python2.7/site-
 packages/bridgedb-0.1.5_dirty-py2.7.egg/bridgedb/HTTPServer.py", line 220,
 in render_POST
     if self.checkSolution(request):
   File "/srv/bridges.torproject.org/local/lib/python2.7/site-
 packages/bridgedb-0.1.5_dirty-py2.7.egg/bridgedb/HTTPServer.py", line 432,
 in checkSolution
     if solution.is_valid:
 exceptions.AttributeError: Deferred instance has no attribute 'is_valid'
 }}}

 Should be easy, just reorder the current code to make `solution.is_valid`
 be checked inside a callback function on the deferred returned from
 `txrecaptcha.submit()`. See the `test_submit_resultIsRecaptchaResponse()`
 unittest for an example of how it was designed to work.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/11218>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online
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