Commit Graph

9 Commits

Author SHA1 Message Date
Simone Basso
8a0c062844
feat: clearly indicate which resolver we're using (#885)
See what we documented at https://github.com/ooni/spec/pull/257

Reference issue: https://github.com/ooni/probe/issues/2238

See also the related ooni/spec PR: https://github.com/ooni/spec/pull/257

See also https://github.com/ooni/probe/issues/2237

While there, bump webconnectivity@v0.5 version because this change
has an impact onto the generated data format.

The drop in coverage is unavoidable because we've written some
tests for `measurex` to ensure we deal with DNS resolvers and transport
names correctly depending on the splitting policy we use.

(However, `measurex` is only used for the `tor` experiment and, per
the step-by-step design document, new experiments should use
`measurexlite` instead, so this is hopefully fine(TM).)

While there, fix a broken integration test that does not run in `-short` mode.
2022-08-27 15:47:48 +02:00
Simone Basso
9ffa124511
chore: upgrade deps and attempt to enable using go1.19 (#869)
* upgrade to our go.mod enabled of psiphon-tunnel-core such that
we're now using v2.0.24 of the tunnel-core;

* upgrade to the latest lucas-clemente/quic-go release;

* upgrade to the latest ooni/oohttp release (which is based on go1.19
but the diff seems good enough to continue using go1.18.x as well);

* upgrade to the latest ooni/oocrypto release (for which we can make the
same remarks regarding using go1.18.x);

* deal with changes in lucas-clemente/quic-go API as well as changes
in what a go1.19 *tls.Conn compatible type should look like.

Unfortunately, we cannot switch to go1.19 because psiphon forks quic-go
and their fork's still not building using such a version of go.

Part of ooni/probe#2211.
2022-08-19 11:26:50 +02:00
DecFox
5501b2201a
feat: dnsping using step-by-step (#831)
Reference issue for this pull request: https://github.com/ooni/probe/issues/2159

This diff refactors the `dnsping` experiment to use the [step-by-step measurement style](https://github.com/ooni/probe-cli/blob/master/docs/design/dd-003-step-by-step.md).

Co-authored-by: decfox <decfox@github.com>
Co-authored-by: Simone Basso <bassosimone@gmail.com>
2022-07-08 19:42:24 +02:00
Simone Basso
2502a237fb
cleanup: netx does not use netxlite legacy names (#801)
This diff refactors netx and netxlite to ensure we're not using
netxlite legacy names inside of netx.

To this end, we're cheating a bit. We're exposing a new factory to
get an unwrapped stdlib resolver rather than defining a legacy name
to export the private name of the same factory.

This is actually a fine place to stop, for now, the next and
netxlite refactoring at https://github.com/ooni/probe/issues/2121.
2022-06-06 14:46:44 +02:00
Simone Basso
58adb68b2c
refactor: move tracex outside of engine/netx (#782)
* refactor: move tracex outside of engine/netx

Consistently with https://github.com/ooni/probe/issues/2121 and
https://github.com/ooni/probe/issues/2115, we can now move tracex
outside of engine/netx. The main reason why this makes sense now
is that the package is now changed significantly from the one
that we imported from ooni/probe-engine.

We have improved its implementation, which had not been touched
significantly for quite some time, and converted it to unit
testing. I will document tomorrow some extra work I'd like to
do with this package but likely could not do $soon.

* go fmt

* regen tutorials
2022-06-02 00:50:55 +02:00
Simone Basso
8f7e3803eb
feat(netxlite): implement DNSTransport wrapping (#776)
Acknowledge that transports MAY be used in isolation (i.e., outside
of a Resolver) and add support for wrapping.

Ensure that every factory that creates an unwrapped type is named
accordingly to hopefully ensure there are no surprises.

Implement DNSTransport wrapping and use a technique similar to the
one used by Dialer to customize the DNSTransport while constructing
more complex data types (e.g., a specific resolver).

Ensure that the stdlib resolver's own "getaddrinfo" transport (1)
is wrapped and (2) could be extended during construction.

This work is part of my ongoing effort to bring to this repository
websteps-illustrated changes relative to netxlite.

Ref issue: https://github.com/ooni/probe/issues/2096
2022-06-01 11:10:08 +02:00
DecFox
5d2afaade4
cli: upgrade to lucas-clemente/quic-go@v0.27.0 (#715)
* quic-go upgrade: replaced Session/EarlySession with Connection/EarlyConnection

* quic-go upgrade: added context to RoundTripper.Dial

* quic-go upgrade: made corresponding changes to tutorial

* quic-go upgrade: changed sess variable instances to qconn

* quic-go upgrade: made corresponding changes to tutorial

* cleanup: remove unnecessary comments

Those comments made sense in terms of illustrating the changes
but they're going to be less useful once we merge.

* fix(go.mod): apparently we needed `go1.18.1 mod tidy`

VSCode just warned me about this. It seems fine to apply this
change as part of the pull request at hand.

* cleanup(netxlite): http3dialer can be removed

We used to use http3dialer to glue a QUIC dialer, which had a
context as its first argument, to the Dial function used by the
HTTP3 transport, which did not have a context as its first
argument.

Now that HTTP3 transport has a Dial function taking a context as
its first argument, we don't need http3dialer
anymore, since we can use the QUIC dialer directly.

Cc: @DecFox

* Revert "cleanup(netxlite): http3dialer can be removed"

This reverts commit c62244c620cee5fadcc2ca89d8228c8db0b96add
to investigate the build failure mentioned at
https://github.com/ooni/probe-cli/pull/715#issuecomment-1119450484

* chore(netx): show that test was already broken

We didn't see the breakage before because we were not using
the created transport, but the issue of using a nil dialer was
already present before, we just didn't see it.

Now we understand why removing the http3transport in
c62244c620cee5fadcc2ca89d8228c8db0b96add did cause the
breakage mentioned at
https://github.com/ooni/probe-cli/pull/715#issuecomment-1119450484

* fix(netx): convert broken integration test to working unit test

There's no point in using the network here. Add a fake dialer that
breaks and ensure we're getting the expected error.

We've now improved upon the original test because the original test was
not doing anything while now we're testing whether we get back a QUIC
dialer that _can be used_.

After this commit, I can then readd the cleanup commit
c62244c620cee5fadcc2ca89d8228c8db0b96add and it won't be
broken anymore (at least, this is what I expected to happen).

* Revert "Revert "cleanup(netxlite): http3dialer can be removed""

This reverts commit 0e254bfc6ba3bfd65365ce3d8de2c8ec51b925ff
because now we should have fixed the broken test.

Co-authored-by: decfox <decfox>
Co-authored-by: Simone Basso <bassosimone@gmail.com>
2022-05-06 12:24:03 +02:00
Simone Basso
b2b1a4b2f1
doc(netxlite): revamp the documentation (#523)
Part of https://github.com/ooni/probe-cli/pull/506. In parallel with
tutorials, we also need to make sure we have good documentation.
2021-09-29 20:21:25 +02:00
Simone Basso
9ef4d9df7d
doc: add tutorial on how to use netxlite (#519)
The main tutorial will be the one at https://github.com/ooni/probe-cli/pull/506, but
it's useful to also document the primitives used by measurex.

So, here's the companion tutorial, which explains how to use the
features in netxlite to perform measurements.

This work is part of https://github.com/ooni/ooni.org/issues/361.
2021-09-28 18:15:38 +02:00