Install the mingw OpenSSL package in Appveyor. This makes sure that
the OpenSSL headers and libraries match in Tor's Appveyor builds.

(This bug was triggered by an Appveyor image update.)

Fixes bug 32449; bugfix on 0.3.5.6-rc.

Bionic has a recent coccinelle version, which passes our CI tests.

But Bionic (and Xenial) cause permissions errors for chutney.
We'll fix those in 32240.

Part of 31919.

Closes ticket 32241.

`git merge --strategy ours` to take the 0.3.5 changes for 31001,
and ignore the conflicting 0.2.9 changes.

This build was added in 0.3.5.

We need to mitigate slow scheduling of Travis macOS jobs.

Closes ticket 32177.

Stem from maint-0.3.5, disabled macOS chutney from ticket32177_029.

We need to mitigate slow scheduling of Travis macOS jobs.

Closes ticket 32177.

Instead of Windows Server 2016.

Closes ticket 32086.

* actually sleep when tor has not logged anything
* log at debug level when waiting for tor to log something
* backslash-replace bad UTF-8 characters in logs
* format control messages as ASCII: tor does not accept UTF-8 control commands

Fixes bug 31837; bugfix on 0.3.5.1-alpha.

David Goulet authored 5 years ago and Nick Mathewson committed 5 years ago

When encoding introduction points, we were not checking if that intro points
had an established circuit.

When botting up, the service will pick, by default, 3 + 2 intro points and the
first 3 that establish, we use them and upload the descriptor.

However, the intro point is removed from the service descriptor list only when
the circuit has opened and we see that we have already enough intro points, it
is then removed.

But it is possible that the service establishes 3 intro points successfully
before the other(s) have even opened yet.

This lead to the service encoding extra intro points in the descriptor even
though the circuit is not opened or might never establish (#31561).

Fixes #31548

Signed-off-by: David Goulet <dgoulet@torproject.org>

Rather than filling the logs with similar warnings.

Fixes bug 31939; bugfix on 0.3.0.4-rc.