Initial HTTP/3 implementationhttp3

This includes Websocket over HTTP/3.

Since quicer, which provides the QUIC implementation,
is a NIF, Cowboy cannot depend directly on it. In order
to enable QUIC and HTTP/3, users have to set the
COWBOY_QUICER environment variable:

  export COWBOY_QUICER=1

In order to run the test suites, the same must be done
for Gun:

  export GUN_QUICER=1

HTTP/3 support is currently not available on Windows
due to compilation issues of quicer which have yet to
be looked at or resolved.

HTTP/3 support is also unavailable on the upcoming
OTP-27 due to compilation errors in quicer dependencies.
Once resolved HTTP/3 should work on OTP-27.

Because of how QUIC currently works, it's possible
that streams that get reset after sending a response
do not receive that response. The test suite was
modified to accomodate for that. A future extension
to QUIC will allow us to gracefully reset streams.

This also updates Erlang.mk.

1 files changed, 12 insertions, 0 deletions

diff --git a/test/rfc9114_SUITE_data/client.pem b/test/rfc9114_SUITE_data/client.pem
new file mode 100644
index 0000000..cd9dc8c
--- /dev/null
+++ b/test/rfc9114_SUITE_data/client.pem
@@ -0,0 +1,12 @@
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