From 8cb9d242b0a665cada6de8b9a9dfa329e0c06ee9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Lo=C3=AFc=20Hoguin?= <essen@ninenines.eu>
Date: Tue, 31 Jan 2023 11:07:31 +0100
Subject: Initial HTTP/3 implementation

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.
---
 Makefile | 23 ++++++++++++++++++++++-
 1 file changed, 22 insertions(+), 1 deletion(-)

(limited to 'Makefile')

diff --git a/Makefile b/Makefile
index 5e88acf..6ffdfc4 100644
--- a/Makefile
+++ b/Makefile
@@ -15,9 +15,14 @@ CT_OPTS += -ct_hooks cowboy_ct_hook [] # -boot start_sasl
 LOCAL_DEPS = crypto
 
 DEPS = cowlib ranch
-dep_cowlib = git https://github.com/ninenines/cowlib 2.13.0
+dep_cowlib = git https://github.com/ninenines/cowlib master
 dep_ranch = git https://github.com/ninenines/ranch 1.8.0
 
+ifeq ($(COWBOY_QUICER),1)
+DEPS += quicer
+dep_quicer = git https://github.com/emqx/quic main
+endif
+
 DOC_DEPS = asciideck
 
 TEST_DEPS = $(if $(CI_ERLANG_MK),ci.erlang.mk) ct_helper gun
@@ -56,15 +61,31 @@ ifndef FULL
 CT_SUITES := $(filter-out examples ws_autobahn,$(CT_SUITES))
 endif
 
+# Don't run HTTP/3 test suites on Windows.
+
+ifeq ($(PLATFORM),msys2)
+CT_SUITES := $(filter-out rfc9114 rfc9204 rfc9220,$(CT_SUITES))
+endif
+
 # Compile options.
 
 ERLC_OPTS += +warn_missing_spec +warn_untyped_record # +bin_opt_info
 TEST_ERLC_OPTS += +'{parse_transform, eunit_autoexport}'
 
+ifeq ($(COWBOY_QUICER),1)
+ERLC_OPTS += -D COWBOY_QUICER=1
+TEST_ERLC_OPTS += -D COWBOY_QUICER=1
+endif
+
 # Generate rebar.config on build.
 
 app:: rebar.config
 
+# Fix quicer compilation for HTTP/3.
+
+autopatch-quicer::
+	$(verbose) printf "%s\n" "all: ;" > $(DEPS_DIR)/quicer/c_src/Makefile.erlang.mk
+
 # Dialyze the tests.
 
 #DIALYZER_OPTS += --src -r test
-- 
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