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Use the new "dcb" and "dcz" content encodings of Compressed Dictionary #46436

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merged 1 commit into from
May 23, 2024

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@chromium-wpt-export-bot chromium-wpt-export-bot commented May 22, 2024

The spec of Compression Dictionary Transport has been changed to use
new dcb and dcz content encodings.
httpwg/http-extensions#2784

To follow the spec change, this CL changes the Chromium implementation
and tests as follows:

  • Use "dcb" content encoding name instead of "br-d".
  • Use "dcz" content encoding name instead of "zstd-d".
  • Remove the "Content-Dictionary" response header.
  • Check the magic number and the sha256 hash in the head of the
    Dictionary-Compressed streams using
    SharedDictionaryHeaderCheckerSourceStream.
  • Re-generate test files using the new content encodings.

Bug: 1413922
Change-Id: I4f2f40c1f0c3666b4f0b54e34ad966ffccadd96b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5552563
Reviewed-by: Kenichi Ishibashi <[email protected]>
Commit-Queue: Tsuyoshi Horo <[email protected]>
Reviewed-by: Patrick Meenan <[email protected]>
Cr-Commit-Position: refs/heads/main@{#1304826}

The spec of Compression Dictionary Transport has been changed to use
new `dcb` and `dcz` content encodings.
httpwg/http-extensions#2784

To follow the spec change, this CL changes the Chromium implementation
and tests as follows:

- Use "dcb" content encoding name instead of "br-d".
- Use "dcz" content encoding name instead of "zstd-d".
- Remove the "Content-Dictionary" response header.
- Check the magic number and the sha256 hash in the head of the
  Dictionary-Compressed streams using
  SharedDictionaryHeaderCheckerSourceStream.
- Re-generate test files using the new content encodings.

Bug: 1413922
Change-Id: I4f2f40c1f0c3666b4f0b54e34ad966ffccadd96b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5552563
Reviewed-by: Kenichi Ishibashi <[email protected]>
Commit-Queue: Tsuyoshi Horo <[email protected]>
Reviewed-by: Patrick Meenan <[email protected]>
Cr-Commit-Position: refs/heads/main@{#1304826}
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The review process for this patch is being conducted in the Chromium project.

@chromium-wpt-export-bot chromium-wpt-export-bot merged commit 0af64c1 into master May 23, 2024
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@chromium-wpt-export-bot chromium-wpt-export-bot deleted the chromium-export-cl-5552563 branch May 23, 2024 02:23
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3 participants