[tor-dev] Default bridges that are not publishing statistics

teor teor2345 at gmail.com
Mon Jun 5 05:15:08 UTC 2017

> On 5 Jun 2017, at 15:06, David Fifield <david at bamsoftware.com> wrote:
>> You asked your bridge for its server descriptor and it gave it to you.
>> Did you try:
>>             print controller.get_extrainfo_descriptors("8B5F0BD647B3C4AF2C57F148FF6A1FB8B695B0AE")
>> https://stem.torproject.org/api/descriptor/remote.html#stem.descriptor.remote.DescriptorDownloader.get_extrainfo_descriptors
>> Since your bridge knows its own extra info descriptor, it should serve it to you.
>> I don't know how to find a server that caches *all* bridge extra infos.
>> Maybe you should try running these queries against the bridge authority?
> get_extrainfo_descriptors doesn't work as a method of
> stem.control.Controller:
> 	AttributeError: 'Controller' object has no attribute 'get_extrainfo_descriptors'
> Calling get_extrainfo_descriptors from stem.descriptor.remote returns an
> empty list. (499D92E08769BFC0B7941C74031335B9EC9E9BAE is the new
> extra-info-digest I got from running just now.)
> 	import stem.descriptor.remote
> 	print list(stem.descriptor.remote.get_authorities())
> 	print list(stem.descriptor.remote.get_server_descriptors("C8CBDB2464FC9804A69531437BCF2BE31FDD2EE4"))
> 	print list(stem.descriptor.remote.get_extrainfo_descriptors("499D92E08769BFC0B7941C74031335B9EC9E9BAE"))
> This is the output. Bifroest is in the get_authorities list, so I assume
> it's querying the bridge authority somewhere in there.
> 	['maatuska', 'tor26', 'Bifroest', 'longclaw', 'dizum', 'gabelmoo', 'moria1', 'dannenberg', 'Faravahar']
> 	[]
> 	[]

I think the documentation at:
is out of date: as far as I know, newer stem versions try fallback
directories rather than authorities.

Even if that's not the case, stem will choose a random authority for
you, which will (8/9 times) tell you that it knows nothing about any
bridge extra infos. (I don't think authorities cache bridge extra

Try passing Bifroest's address and DirPort to the endpoints= argument to

Tim Wilson-Brown (teor)

teor2345 at gmail dot com
PGP C855 6CED 5D90 A0C5 29F6 4D43 450C BA7F 968F 094B
xmpp: teor at torproject dot org

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