[tahoe-lafs-trac-stream] [Tahoe-LAFS] #2349: TypeError: AES.__init__() argument 1 must be string or read-only character buffer, not None

[Tahoe-LAFS]

#2349: TypeError: AES.__init__() argument 1 must be string or read-only character
buffer, not None
------------------------------+-----------------------------------------
     Reporter:  zooko         |      Owner:
         Type:  defect        |     Status:  new
     Priority:  major         |  Milestone:  undecided
    Component:  code-mutable  |    Version:  1.9.2
   Resolution:                |   Keywords:  TypeError mutable mapupdate
Launchpad Bug:                |
------------------------------+-----------------------------------------
Changes (by daira):

 * keywords:   => TypeError mutable mapupdate
 * priority:  normal => major
 * version:  1.10.0 => 1.9.2
 * component:  code => code-mutable


Old description:

> In comment:17:ticket:1939 there was this stack trace:
> {{{
> 2013-04-02_00:00:45.292535Z [190484]: WEIRD {'f_value':'AES.__init__()
> argument 1 must be string or read-only character buffer, not None',
> 'facility':'tahoe.mutable.mapupdate',
> 'failure':<foolscap.call.CopiedFailure exceptions.TypeError>,
> 'format':'error during privkey query: %(f_value)s',
> 'incarnation':('\xd0N\xca\xf7\xa7l\x8f\xce', None), 'parent':190483, ...}
> FAILURE:
> [CopiedFailure instance: Traceback from remote host -- Traceback (most
> recent call last):
>   File "/usr/lib/python2.7/dist-packages/twisted/internet/defer.py", line
> 551, in _runCallbacks
>     current.result = callback(current.result, *args, **kw)
>   File "/usr/lib/pymodules/python2.7/allmydata/mutable/servermap.py",
> line 723, in _got_results
>     d4.addCallback(lambda results, shnum=shnum:
>   File "/usr/lib/python2.7/dist-packages/twisted/internet/defer.py", line
> 301, in addCallback
>     callbackKeywords=kw)
>   File "/usr/lib/python2.7/dist-packages/twisted/internet/defer.py", line
> 290, in addCallbacks
>     self._runCallbacks()
> --- <exception caught here> ---
>   File "/usr/lib/python2.7/dist-packages/twisted/internet/defer.py", line
> 551, in _runCallbacks
>     current.result = callback(current.result, *args, **kw)
>   File "/usr/lib/pymodules/python2.7/allmydata/mutable/servermap.py",
> line 724, in <lambda>
>     self._try_to_validate_privkey(results, server, shnum, lp))
>   File "/usr/lib/pymodules/python2.7/allmydata/mutable/servermap.py",
> line 929, in _try_to_validate_privkey
>     alleged_privkey_s = self._node._decrypt_privkey(enc_privkey)
>   File "/usr/lib/pymodules/python2.7/allmydata/mutable/filenode.py", line
> 168, in _decrypt_privkey
>     enc = AES(self._writekey)
> exceptions.TypeError: AES.__init__() argument 1 must be string or read-
> only character buffer, not None
> ]
> }}}

New description:

 In comment:17:ticket:1939 there was this stack trace from Tahoe-LAFS 1.9.2
 during a mutable mapupdate:
 {{{
 2013-04-02_00:00:45.292535Z [190484]: WEIRD {'f_value':'AES.__init__()
 argument 1 must be string or read-only character buffer, not None',
 'facility':'tahoe.mutable.mapupdate',
 'failure':<foolscap.call.CopiedFailure exceptions.TypeError>,
 'format':'error during privkey query: %(f_value)s',
 'incarnation':('\xd0N\xca\xf7\xa7l\x8f\xce', None), 'parent':190483, ...}
 FAILURE:
 [CopiedFailure instance: Traceback from remote host -- Traceback (most
 recent call last):
   File "/usr/lib/python2.7/dist-packages/twisted/internet/defer.py", line
 551, in _runCallbacks
     current.result = callback(current.result, *args, **kw)
   File "/usr/lib/pymodules/python2.7/allmydata/mutable/servermap.py", line
 723, in _got_results
     d4.addCallback(lambda results, shnum=shnum:
   File "/usr/lib/python2.7/dist-packages/twisted/internet/defer.py", line
 301, in addCallback
     callbackKeywords=kw)
   File "/usr/lib/python2.7/dist-packages/twisted/internet/defer.py", line
 290, in addCallbacks
     self._runCallbacks()
 --- <exception caught here> ---
   File "/usr/lib/python2.7/dist-packages/twisted/internet/defer.py", line
 551, in _runCallbacks
     current.result = callback(current.result, *args, **kw)
   File "/usr/lib/pymodules/python2.7/allmydata/mutable/servermap.py", line
 724, in <lambda>
     self._try_to_validate_privkey(results, server, shnum, lp))
   File "/usr/lib/pymodules/python2.7/allmydata/mutable/servermap.py", line
 929, in _try_to_validate_privkey
     alleged_privkey_s = self._node._decrypt_privkey(enc_privkey)
   File "/usr/lib/pymodules/python2.7/allmydata/mutable/filenode.py", line
 168, in _decrypt_privkey
     enc = AES(self._writekey)
 exceptions.TypeError: AES.__init__() argument 1 must be string or read-
 only character buffer, not None
 ]
 }}}

--

--
Ticket URL: <https://tahoe-lafs.org/trac/tahoe-lafs/ticket/2349#comment:1>
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