____     ____     ____   _____    __  ___
   / __ \   / __ \   /  _/  / ___/   /  |/  /
  / /_/ /  / /_/ /   / /    \__ \   / /|_/ /
 / ____/  / _, _/  _/ /    ___/ /  / /  / /
/_/      /_/ |_|  /___/   /____/  /_/  /_/

DATA TRACE [2014-11-04 10:52:34.436] 5052 4920 2a20 4854 5450 2f32 2e30 0d0a   PRI * HTTP/2.0..
DATA TRACE [2014-11-04 10:52:34.437] 0d0a 534d 0d0a 0d0a                       ..SM....

An interoperable HTTP2 server.

Build from git

mkdir build && cd build
CC=clang cmake -DCMAKE_BUILD_TYPE=Release ..
make

Run

openssl req -x509 -nodes -days 365 -newkey rsa:2048 -keyout key.pem -out cert.pem
./bin/prism -L INFO -p ./lib/libfiles_plugin.so

Run Tests

make test

With valgrind:

CK_TIMEOUT_MULTIPLIER=10 ctest -D ExperimentalMemCheck --output-on-failure -VV

Run clang-analyzer

mkdir build && cd build
scan-build cmake -DCMAKE_BUILD_TYPE=Debug ..
scan-build make

Dependencies

For Ubuntu:

apt-get install build-essential cmake libssl-dev flex bison doxygen check libjansson-dev libjansson4

• libuv (you'll have to build from source or find a package - there isn't one in the default repos - https://github.com/libuv/libuv)

• pthreads

• openssl libssl/libcrypto (1.0.2 for ALPN)

• jansson for config file parsing (json library)

• flex & bison

• check unit test framework

• joyent http parser [https://github.com/joyent/http-parser] (already in repo, see src/http/h1_1/http_parser.c)

TODO

Required features

• serious security checks
  • fuzzer using test harness to randomly generate illegal requests
• configuration
  • load plugins for a specific listen address only
• graceful shutdown
  • second int signal should force shutdown
• better error handling for libuv calls
• doxygen documentation
• complete spec compliance
  • error on violation of incoming max concurrent streams
  • goaway on bad hpack indexes

Up next

• output data frame padding config option

• watch config file and update without restart

• access/error log

• switch from heap based priority queue to linked list?

• finite state machine for handling stream status

• plugin system that allows access to connections, streams, frames, requests, responses (callbacks)

  • plugin versioning system - each call has a version number that is checked on plugin load

Performance:

• fast huffman coding + decoding - more than one bit at a time

• better hpack encoding algorithm - use indexing

• stream priority

• files - cache file, if the file changes (libuv watch it), update the cache

• test - http_request_header_get after sending response headers - "accept-language" - does it get the right value?