Write tor experiment (episode 1) #226
Description
We have discussed with @hellais that, rather than working on separate tests for connecting using TCP to bridges (see #2) and for checking whether obfs4 works (see #90), we'd be better off with writing a single Tor experiment that works as follows:
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read a list of Tor related targets to check (directory authorities addresses, vanilla bridges, obfs4 bridges, etc.)
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for each target, check whether there is TCP level connectivity (what Tor bridge reachability in probe-engine #2 did) and then do something else to gain more confidence we can use it (what obfs4proxy reachability in probe-engine #90 did for obfs4)
The main rationale of this design is to have a single place experiment that gives a holistic view of how to best configure/use tor in a specific context.
I have been working towards implementing this experiment for a week now, and it seems to me the time has come for replacing #2 and #90 with this issue. I will accordingly strip #2 and #90 of their priority and effort estimations and mark them as wontfix. This issue will be the right place where to measure our progress towards competing this more ambitious goal.