mirror of https://github.com/moparisthebest/curl
86 lines
2.4 KiB
Markdown
86 lines
2.4 KiB
Markdown
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# HTTP3 (and QUIC)
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## Resources
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[HTTP/3 Explained](https://daniel.haxx.se/http3-explained/) - the online free
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book describing the protocols involved.
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[QUIC implementation](https://github.com/curl/curl/wiki/QUIC-implementation) -
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the wiki page describing the plan for how to support QUIC and HTTP/3 in curl
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and libcurl.
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[quicwg.org](https://quicwg.org/) - home of the official protocol drafts
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## QUIC libraries
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QUIC libraries we're experiementing with:
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[ngtcp2](https://github.com/ngtcp2/ngtcp2)
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[quiche](https://github.com/cloudflare/quiche)
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## Experimental!
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HTTP/3 and QUIC support in curl is not yet working and this is early days.
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Consider all QUIC and HTTP/3 code to be **EXPERIMENTAL** until further notice.
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curl does not have HTTP/3 support (yet).
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The bleeding edge QUIC work is done in the dedicated
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[QUIC](https://github.com/curl/curl/tree/QUIC) branch, but the plan is to
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merge as often as possible from there to master. All QUIC related code will
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remain being build-time conditionally enabled.
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# ngtcp2 version
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## Build
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1. clone ngtcp2 from git (the draft-17 branch)
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2. build and install ngtcp2's custom OpenSSL version (the quic-draft-17 branch)
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3. build and install ngtcp2 according to its instructions
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4. configure curl with ngtcp2 support: `./configure --with-ngtcp2=<install prefix>`
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5. build curl "normally"
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## Running
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Make sure the custom OpenSSL library is the one used at run-time, as otherwise
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you'll just get ld.so linker errors.
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## Invoke from command line
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curl --http3-direct https://nghttp2.org:8443/
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# quiche version
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## build
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Build BoringSSL (it needs to be built manually so it can be reused with curl):
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% mkdir -p quiche/deps/boringssl/build
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% cd quiche/deps/boringssl/build
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% cmake -DCMAKE_POSITION_INDEPENDENT_CODE=on ..
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% make -j`nproc`
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% cd ..
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% mkdir .openssl/lib -p
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% cp build/crypto/libcrypto.a build/ssl/libssl.a .openssl/lib
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% ln -s $PWD/include .openssl
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Build quiche:
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% cd ../..
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% QUICHE_BSSL_PATH=$PWD/deps/boringssl cargo build --release
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Clone and build curl:
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% cd ..
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% git clone https://github.com/curl/curl
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% ./buildconf
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% ./configure --with-ssl=$PWD/../quiche/deps/boringssl/.openssl --with-quiche=$PWD/../quiche --enable-debug
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% make -j`nproc`
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## Running
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Make an HTTP/1.1 request to a QUIC server:
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% src/curl --http3-direct https://cloudflare-quic.com/
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