From: naruse@...
Date: 2014-02-25T15:20:14+00:00
Subject: [ruby-dev:48016] [ruby-trunk - Bug #9562] [Assigned] Cannot install gems from gzip-compressing gem server

Issue #9562 has been updated by Yui NARUSE.

Status changed from Open to Assigned
Assignee set to Eric Hodel
Target version set to current: 2.2.0
Backport changed from 1.9.3: UNKNOWN, 2.0.0: UNKNOWN, 2.1: UNKNOWN to 1.9.3: DONTNEED, 2.0.0: REQUIRED, 2.1: REQUIRED

You know, since Ruby 2.0.0, net/http automatically decode content-encoding;gzip.
Therefore Gem::Request, which uses Net::HTTP internally, also decode gz file, for example specs.4.8.gz,
if a gemsource server sets Content-Encoding: gzip to gz files.

Individual gem servers may hit this issue if people accidentally set Content-Encoding: gzip.
I think this issue should be avoided by RubyGems, and a patch may be following:

    diff --git a/lib/rubygems/request.rb b/lib/rubygems/request.rb
    index d2f076f..588dae4 100644
    --- a/lib/rubygems/request.rb
    +++ b/lib/rubygems/request.rb
    @@ -112,6 +112,7 @@ class Gem::Request
    request.add_field 'User-Agent', @user_agent
    request.add_field 'Connection', 'keep-alive'
    request.add_field 'Keep-Alive', '30'
    +    request.add_field 'Accept-Encoding', ''
    if @last_modified then
    request.add_field 'If-Modified-Since', @last_modified.httpdate

----------------------------------------
Bug #9562: Cannot install gems from gzip-compressing gem server
https://bugs.ruby-lang.org/issues/9562#change-45470

* Author: 5 5
* Status: Assigned
* Priority: Normal
* Assignee: Eric Hodel
* Category: lib/rubygems
* Target version: current: 2.2.0
* ruby -v: ruby 2.0.0p353 (2013-11-22) [i386-mingw32]
* Backport: 1.9.3: DONTNEED, 2.0.0: REQUIRED, 2.1: REQUIRED
----------------------------------------
gem generate_index で作成した gem server が gzip 圧縮を行う場合，Ruby 2.0 以上では gem のインストールに失敗します。

Ruby 1.9 では正常です。

サーバーを gzip 圧縮しない設定にすれば問題が解消します。






-- 
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