tree 6bbb7adb8c25112e8525d1ac5f147e424b60aae6
parent 6f689c72caa870aa33ab4d47a402251ab963e073
author Evgeny Kotkov <kotkov@apache.org> 1489401445 +0000
committer Evgeny Kotkov <kotkov@apache.org> 1489401445 +0000

Add support for decompressing Brotli (RFC 7932) data and allow decoding
"Content-Encoding: br" responses.

The patch introduces an optional dependency on the Brotli library from
https://github.com/google/brotli and a new bucket that allows decoding
Brotli data.  The new bucket features zero-copy processing, which is only
possible with the new API from the upcoming 1.0.x series of the library.

* serf_bucket_types.h
  (serf_bucket_is_brotli_supported,
   serf_bucket_brotli_decompress_create): Declare new functions.
  (SERF_BUCKET_IS_BROTLI_DECOMPRESS,
   serf_bucket_brotli_decompress_create): Declare new bucket type.

* buckets/brotli_buckets.c:
  New file containing the implementation of the new bucket.  Brotli is
  an optional dependency, so provide function stubs if it is not supported
  and indicate that in serf_bucket_is_brotli_supported().

* buckets/response_buckets.c
  (run_machine): Decode "Content-Encoding: br" if Brotli is supported.

* test/serf_bwtp.c
  (setup_request, setup_channel): Indicate Brotli support in "Accept-Encoding".

* test/serf_get.c
  (setup_request): Indicate Brotli support in "Accept-Encoding".

* test/serf_spider.c
  (setup_request): Indicate Brotli support in "Accept-Encoding".

* test/test_buckets.c
  (test_brotli_decompress_bucket_basic,
   test_brotli_decompress_bucket_truncated_input,
   test_brotli_decompress_bucket_read_bytewise,
   test_brotli_decompress_bucket_chunked_input,
   test_brotli_decompress_bucket_chunked_input2,
   test_brotli_decompress_bucket_garbage_at_end,
   test_brotli_decompress_response_body): New tests.
  (test_buckets): Run new tests if Serf is built with Brotli support.

* SConstruct: Pick up location of the Brotli library from the new
  BROTLI variable.  In case it's set, ensure that we are building
  with an appropriate version of the library and define SERF_HAVE_BROTLI.

Approved by: rhuijben


git-svn-id: https://svn.apache.org/repos/asf/serf/trunk@1786654 13f79535-47bb-0310-9956-ffa450edef68