[tor-bugs] #34318 [Circumvention/BridgeDB]: BridgeDB doesn't like non-UTF8 encoded requests

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#34318: BridgeDB doesn't like non-UTF8 encoded requests
----------------------------------------+--------------------
     Reporter:  phw                     |      Owner:  (none)
         Type:  defect                  |     Status:  new
     Priority:  Medium                  |  Milestone:
    Component:  Circumvention/BridgeDB  |    Version:
     Severity:  Normal                  |   Keywords:
Actual Points:                          |  Parent ID:
       Points:  0.25                    |   Reviewer:
      Sponsor:                          |
----------------------------------------+--------------------
 I stumbled upon the following exception in BridgeDB's log:

 {{{
 Traceback (most recent call last):
   File "/home/bridgedb/virtualenvs/bridgedb/lib/python3.7/site-
 packages/twisted/web/http.py", line 1755, in dataReceived
     finishCallback(data[contentLength:])
   File "/home/bridgedb/virtualenvs/bridgedb/lib/python3.7/site-
 packages/twisted/web/http.py", line 2171, in _finishRequestBody
     self.allContentReceived()
   File "/home/bridgedb/virtualenvs/bridgedb/lib/python3.7/site-
 packages/twisted/web/http.py", line 2284, in allContentReceived
     req.requestReceived(command, path, version)
   File "/home/bridgedb/virtualenvs/bridgedb/lib/python3.7/site-
 packages/twisted/web/http.py", line 946, in requestReceived
     self.process()
 --- <exception caught here> ---
   File "/home/bridgedb/virtualenvs/bridgedb/lib/python3.7/site-
 packages/twisted/web/server.py", line 235, in process
     self.render(resrc)
   File "/home/bridgedb/virtualenvs/bridgedb/lib/python3.7/site-
 packages/twisted/web/server.py", line 302, in render
     body = resrc.render(self)
   File "/home/bridgedb/virtualenvs/bridgedb/lib/python3.7/site-
 packages/twisted/web/resource.py", line 265, in render
     return m(request)
   File "/home/bridgedb/virtualenvs/bridgedb/lib/python3.7/site-
 packages/bridgedb-0.10.0+34.ga6eb0d1c.dirty-
 py3.7.egg/bridgedb/distributors/https/server.py", line 722, in render_POST
     return CaptchaProtectedResource.render_POST(self, request)
   File "/home/bridgedb/virtualenvs/bridgedb/lib/python3.7/site-
 packages/bridgedb-0.10.0+34.ga6eb0d1c.dirty-
 py3.7.egg/bridgedb/distributors/https/server.py", line 573, in render_POST
     request.args = stringifyRequestArgs(request.args)
   File "/home/bridgedb/virtualenvs/bridgedb/lib/python3.7/site-
 packages/bridgedb-0.10.0+34.ga6eb0d1c.dirty-
 py3.7.egg/bridgedb/distributors/https/server.py", line 109, in
 stringifyRequestArgs
     arg = arg if isinstance(arg, str) else arg.decode("utf-8")
 builtins.UnicodeDecodeError: 'utf-8' codec can't decode byte 0xc2 in
 position 1: invalid continuation byte
 }}}

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/34318>
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