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3581 discussions

[GSoC] Update - Safe cookie support/General controller class for Stem
by Ravi Chandra Padmala 11 Jun '12

11 Jun '12

Hello I have finished working on implementing the safe cookie authentication support for Stem. Damian fixed a few things[1] and merged it into master. I'm now working on implementing the general controller class. GETINFO parsing was implemented by Damian as an example. I've implemented GETCONF parsing[2] for the controller. It's almost done. I'm also going to implement the other methods to handle the remaining control commands allocated to week 2 and 3 in my proposal[3]. Note: I'm behind my schedule by a little more than a week. I had an exam during the 2nd week, because of which I couldn't do much/any work that week. Though, I do have enough buffer time to make up for this, and, I'm trying to catch up with my schedule. 1. https://gitweb.torproject.org/stem.git/commit/560923cb7b572d02046c6ca2bd5eb… 2. https://trac.torproject.org/projects/tor/ticket/6114 3. https://www.torproject.org/about/gsocProposal/gsoc12-proposal-stemImproveme… -- neena

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Stem Sphinx Documentation
by Damian Johnson 10 Jun '12

10 Jun '12

Hi Ravi, Beck, and everyone else hacking on stem. I just finished and merged a rewrite of our documentation into reStructuredText. The results are... very pretty. http://www.atagar.com/transfer/tmp/stem_html_12_06_05/ Next I plan to make a landing page for stem, and a cron process which will automatically keep a documentation page up to date with the current git master branch. Some pages that you might find especially relevant... Ravi http://www.atagar.com/transfer/tmp/stem_html_12_06_05/stem.html#module-stem… Beck http://www.atagar.com/transfer/tmp/stem_html_12_06_05/stem.html#stem.contro… Karsten http://www.atagar.com/transfer/tmp/stem_html_12_06_05/stem.descriptor.html#… Norman, Erik, and Megan http://www.atagar.com/transfer/tmp/stem_html_12_06_05/stem.util.html#module… Cheers! -Damian

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How (not) to Build a Transport Layer for Anonymity Overlays
by Roger Dingledine 09 Jun '12

09 Jun '12

http://pade12.mytestbed.net/pade12-final6.pdf To be presented this coming Friday in London: http://pade12.mytestbed.net/technicalprogram/ --Roger

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Stem Testing Code Question - Wesleyan Interns
by Erik I Islo 08 Jun '12

08 Jun '12

Hi Damian, Having gotten started looking at some of the testing code from Stem over the last day or so, Megan and I have come up with a question. While both of us are currently on #tor and #tor-dev (as ErikI and MeganC), we figured an email would be best for getting started as we have a bit more to say. In run_tests.py, under the if statement that catches the case of integration tests (line 268), there is a block of code that contains a number of references to 'targets.' To start, could you explain the formatting and specific purpose of the settings.cfg file? Basically, we are trying to understand what lines 274 through 309 are doing in run_tests.py. Thanks in advance, Erik & Megan

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Can we stop sanitizing nicknames in bridge descriptors?
by Karsten Loesing 06 Jun '12

06 Jun '12

Hi everybody, we're discussing in #5684 whether we can stop sanitizing nicknames in the bridge descriptors that we publish here: https://metrics.torproject.org/data.html#bridgedesc The sanitizing process is described here: https://metrics.torproject.org/formats.html#bridgedesc When we started making sanitized bridge descriptors available on the metrics website we replaced all contained nicknames with "Unnamed". The reason was that "bridge nicknames might give hints on the location of the bridge if chosen without care; e.g. a bridge nickname might be very similar to the operators' relay nicknames which might be located on adjacent IP addresses." This was an easy decision back then, because we didn't use the nickname for anything. This has changed with #5629 where we try to count EC2 bridges which all have a similar nickname. So, while we don't have that information, there'd now be a use for it. Another advantage of having bridge nicknames would be that they're easier to look up in a status website like Atlas (which doesn't support searching for bridges yet). We should re-consider whether it still makes sense to sanitize nicknames in bridge descriptors or not. Regarding the reasoning above, couldn't an adversary just scan adjacent IP addresses of all known relays, not just the ones with similar nicknames? And are we giving away anything else with the nicknames? It would be great to get some feedback here whether leaving nicknames in the sanitized descriptors is a terrible idea, and if so, why. If nobody objects within the next, say, two weeks, I'm going to make an old tarball from 2008 available with original nicknames. And if nobody screams, I'll provide the remaining tarballs containing original nicknames another two weeks later. Thanks! Karsten

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Stats on Amazon bridges
by SiNA Rabbani 06 Jun '12

06 Jun '12

Dear Team, I need to get a count of all the Amazon Tor images running bridges. The reason I need this data is so I can follow-up with acessnow.org about the campaign they are running at: https://www.globalproxycloud.net/ How should I go about that data? All the best, SiNA -- First they ignore you, then they laugh at you, then they fight you, then you win ~ Mahatma Gandhi

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[GSoC]Tails-server
by jvoisin 06 Jun '12

06 Jun '12

Hello, the "community bonding period" is over for quite some time now, but as I have previously said in my application, I (unfortunately) won't be able to start my GSoC until the 8th of June. So far, I managed to build Tails in a virtual machine, in a tmpfs, using a proxy (to avoid spamming Debian's mirrors); but also using vagrant[1]. It takes me only a couple of minutes to build Tails on my machine, which is a good news. About the testing environment now: It seems like liveCD testing is not something that interest people very much. The autotesting repo[3] of debian-live is a 404, and even if it wasn't, the documentation is lacking. The "mainstream way" for doing system-wide/vm/liveCD tests is autotest[4], but it seems completely overkill to me. This is why I am currently playing around with lettuce[2], a nice Python-powered BDD tool. Hopefully, my next status update will be more consistent/interesting. Have a nice day 1. https://tails.boum.org/contribute/build/#index1h1 2. http://lettuce.it/ 3. http://git.debian.org/?p=debian-live/autotesting.git 4. http://autotest.github.com/ -- jvoisin

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Stegotorus now available from gitweb.torproject.org
by Zack Weinberg 05 Jun '12

05 Jun '12

On Mon, Jun 4, 2012 at 8:21 AM, Zack Weinberg <zackw(a)panix.com> wrote: > For the moment, the source tree is visible on Github: > <https://github.com/zackw/stegotorus>. It is likely to move to > gitweb.torproject.org hosting in the near future. You can now clone {git,https}://git.torproject.org/stegotorus.git . Be warned that due to a couple of very large files, a clone requires approximately 350MB of disk space and 140MB transferred over the network. (The troublesome files are unlikely to change in the near future, so this is a one-time cost.) You should also assume that all documentation is out of date until further notice. Patches are welcome. The TODO list currently exists only in my head, but I'll be getting that updated in-repo Real Soon. zw

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use sphinx on stem
by Beck Chen 05 Jun '12

05 Jun '12

Hi Damian, I explored sphinx and tried it on stem these days, and it seemed pretty handy. I think a good way to produce nice documentation for stem is to create a page for each module manually, write an introduction by hand, and use autoclass / autofunction / autoexception in the autodoc extension to create API docs. automodule seems too general and does not work well with module's docstring in stem since it is not written in reST format, so I don't like it. What do you suggest? And how's your progress now? Cheers, Beck

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txtorcon, async Tor controller
by meejah 05 Jun '12

05 Jun '12

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Erring on the side of "release early, release often" I have put my Twisted-based (asynchronous, Python) Tor control protocol implementation online: http://readthedocs.org/docs/txtorcon/en/latest/ https://github.com/meejah/txtorcon It is MIT licensed (to match Twisted). I would certainly not consider it "done", and I made it to learn more about Twisted and Python -- criticisms, comments appreciated. Currently it has the following features (see the above-linked documentation for more, and examples): . TorControlProtocol implements the control protocol . TorState tracks the state of Tor (streams, circuits, routers, address-map), listening for updates . TorConfig provides read/write configuration access , with HS abstraction (still needs some work) . IStringAttacher, a stream-to-circuit attacher interface for new streams . launch_tor can launch slave Tor processes . integrates into Twisted's endpoints with TCPHiddenServiceEndpoint The main code is about 1600 LOC, ~4000 with tests and 25% comments (according to ohcount). There is currently 98% test coverage, if one believes code-coverage is a good metric. In the short-term, be aware that I'm planning to re-organize where things are in files. If you "import txtorcon" and use the classes like "txtorcon.TorConfig" it will all still work. Thanks for your attention, mike -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) iQEcBAEBAgAGBQJPczCxAAoJEMJgKAMSgGmnTrEH/RG1TLbEsqALWyh5WSm1azYU 7QHx9eup+/NKUE8C6WLPGQyprTkL/snIRZZGYDdkz5grkxcsYaWaVNNtDdUTdctN KCi2E3rbzdUYHV0aN/VdoNvJdpa8H3J2dpyx4/kFmZ2Z04+VLZOqeX6ANMdYZbYv FXv37j0dnl15h+t57+65Cf5c8BVbSW50vqXUx/eHWS73BISq3LP30OV4Ut8k3Xbg IXVf1S/EFeoXxRoGfn9i4i4txeQNyQxCOX0k+fynvIGP+lFuYciSGgGJydYBIkhE 87TMJ//c1tPq41jn5prdbWRTE4mPWA5U03w35wUGrhUWSNUb+OhM6fV4vdRwq30= =ilGQ -----END PGP SIGNATURE-----

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