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mod_proxy_fcgiとPATH_INFOの使用中にURLを書き換えると、エラー404が発生します。

次のようにmod_proxy_fcgiを介して接続されたPHP-FPM 7.1.4を使用するApache 2.4.25に仮想ホストがあります。

<VirtualHost *:80>
    ServerName example.com
    DocumentRoot /srv/www/example.com

    <Directory /srv/www/example.com>
        AllowOverride All
        Require all granted
    </Directory>

    SetEnvIfNoCase ^Authorization$ "(.+)" HTTP_AUTHORIZATION=$1
    <FilesMatch ".+\.ph(p[3457]?|t|tml)$">
        SetHandler "proxy:unix:/run/php/example.sock|fcgi://localhost"
    </FilesMatch>
</VirtualHost>

ほとんどのアプリケーションはこの設定で問題なく動作しますが、PATH_INFOを使用してリクエストを抽出するアプリケーションが1つあります。アプリケーションの.htaccessには次のようなものがあります。

RewriteEngine On

RewriteCond $1 ^index\.php
RewriteRule ^(.*)$ - [PT,L]

RewriteRule ^(.*)$ index.php/$1 [PT,L]

簡単に言えば、index.php以外のものはすべて、パスとして渡す必要があります。 URLにアクセスすると http://example.com/index.php/test 動作し、期待どおりに[PATH_INFO] => /testが表示されますが、 http://example.com/test にアクセスすると=で死ぬ

AH01071: Got error 'Primary script unknown\n'

Mod_rewriteとmod_proxy_fcgiの両方にLogLevel trace6を設定すると、リダイレクトが適切に行われ、適切なパスもPHP-FPMに渡されます。

/index.php/testのトレース：

[Sat Apr 29 09:40:41.156316 2017] [rewrite:trace3] [pid 3014:tid 140574363391744] mod_rewrite.c(477): [client xx.xx.xx.xx:32622] xx.xx.xx.xx - - [example.com/sid#7fda1635d360][rid#7fda141400a0/initial] [perdir /srv/www/example.com/] add path info postfix: /srv/www/example.com/index.php -> /srv/www/example.com/index.php/test
[Sat Apr 29 09:40:41.156334 2017] [rewrite:trace3] [pid 3014:tid 140574363391744] mod_rewrite.c(477): [client xx.xx.xx.xx:32622] xx.xx.xx.xx - - [example.com/sid#7fda1635d360][rid#7fda141400a0/initial] [perdir /srv/www/example.com/] strip per-dir prefix: /srv/www/example.com/index.php/test -> index.php/test
[Sat Apr 29 09:40:41.156348 2017] [rewrite:trace3] [pid 3014:tid 140574363391744] mod_rewrite.c(477): [client xx.xx.xx.xx:32622] xx.xx.xx.xx - - [example.com/sid#7fda1635d360][rid#7fda141400a0/initial] [perdir /srv/www/example.com/] applying pattern '^(.*)$' to uri 'index.php/test'
[Sat Apr 29 09:40:41.156352 2017] [rewrite:trace4] [pid 3014:tid 140574363391744] mod_rewrite.c(477): [client xx.xx.xx.xx:32622] xx.xx.xx.xx - - [example.com/sid#7fda1635d360][rid#7fda141400a0/initial] [perdir /srv/www/example.com/] RewriteCond: input='index.php/test' pattern='^index\\.php' => matched
[Sat Apr 29 09:40:41.156355 2017] [rewrite:trace2] [pid 3014:tid 140574363391744] mod_rewrite.c(477): [client xx.xx.xx.xx:32622] xx.xx.xx.xx - - [example.com/sid#7fda1635d360][rid#7fda141400a0/initial] [perdir /srv/www/example.com/] forcing '/srv/www/example.com/index.php' to get passed through to next API URI-to-filename handler
[Sat Apr 29 09:40:41.156358 2017] [rewrite:trace1] [pid 3014:tid 140574363391744] mod_rewrite.c(477): [client xx.xx.xx.xx:32622] xx.xx.xx.xx - - [example.com/sid#7fda1635d360][rid#7fda141400a0/initial] [perdir /srv/www/example.com/] initial URL equal rewritten URL: /srv/www/example.com/index.php [IGNORING REWRITE]
[Sat Apr 29 09:40:41.156368 2017] [proxy_fcgi:debug] [pid 3014:tid 140574363391744] mod_proxy_fcgi.c(913): [client xx.xx.xx.xx:32622] AH01076: url: fcgi://localhost/srv/www/example.com/index.php proxyname: (null) proxyport: 0
[Sat Apr 29 09:40:41.156371 2017] [proxy_fcgi:debug] [pid 3014:tid 140574363391744] mod_proxy_fcgi.c(920): [client xx.xx.xx.xx:32622] AH01078: serving URL fcgi://localhost/srv/www/example.com/index.php
[Sat Apr 29 09:40:41.156510 2017] [rewrite:trace3] [pid 3014:tid 140574363391744] mod_rewrite.c(477): [client xx.xx.xx.xx:32622] xx.xx.xx.xx - - [example.com/sid#7fda1635d360][rid#7fda1413e0a0/subreq] [perdir /srv/www/example.com/] strip per-dir prefix: /srv/www/example.com/test -> test
[Sat Apr 29 09:40:41.156519 2017] [rewrite:trace3] [pid 3014:tid 140574363391744] mod_rewrite.c(477): [client xx.xx.xx.xx:32622] xx.xx.xx.xx - - [example.com/sid#7fda1635d360][rid#7fda1413e0a0/subreq] [perdir /srv/www/example.com/] applying pattern '^(.*)$' to uri 'test'
[Sat Apr 29 09:40:41.156535 2017] [rewrite:trace4] [pid 3014:tid 140574363391744] mod_rewrite.c(477): [client xx.xx.xx.xx:32622] xx.xx.xx.xx - - [example.com/sid#7fda1635d360][rid#7fda1413e0a0/subreq] [perdir /srv/www/example.com/] RewriteCond: input='test' pattern='^index\\.php' => not-matched
[Sat Apr 29 09:40:41.156538 2017] [rewrite:trace3] [pid 3014:tid 140574363391744] mod_rewrite.c(477): [client xx.xx.xx.xx:32622] xx.xx.xx.xx - - [example.com/sid#7fda1635d360][rid#7fda1413e0a0/subreq] [perdir /srv/www/example.com/] strip per-dir prefix: /srv/www/example.com/test -> test
[Sat Apr 29 09:40:41.156541 2017] [rewrite:trace3] [pid 3014:tid 140574363391744] mod_rewrite.c(477): [client xx.xx.xx.xx:32622] xx.xx.xx.xx - - [example.com/sid#7fda1635d360][rid#7fda1413e0a0/subreq] [perdir /srv/www/example.com/] applying pattern '^(.*)$' to uri 'test'
[Sat Apr 29 09:40:41.156563 2017] [rewrite:trace2] [pid 3014:tid 140574363391744] mod_rewrite.c(477): [client xx.xx.xx.xx:32622] xx.xx.xx.xx - - [example.com/sid#7fda1635d360][rid#7fda1413e0a0/subreq] [perdir /srv/www/example.com/] rewrite 'test' -> 'index.php/test'
[Sat Apr 29 09:40:41.156567 2017] [rewrite:trace3] [pid 3014:tid 140574363391744] mod_rewrite.c(477): [client xx.xx.xx.xx:32622] xx.xx.xx.xx - - [example.com/sid#7fda1635d360][rid#7fda1413e0a0/subreq] [perdir /srv/www/example.com/] add per-dir prefix: index.php/test -> /srv/www/example.com/index.php/test
[Sat Apr 29 09:40:41.156571 2017] [rewrite:trace2] [pid 3014:tid 140574363391744] mod_rewrite.c(477): [client xx.xx.xx.xx:32622] xx.xx.xx.xx - - [example.com/sid#7fda1635d360][rid#7fda1413e0a0/subreq] [perdir /srv/www/example.com/] forcing '/srv/www/example.com/index.php/test' to get passed through to next API URI-to-filename handler
[Sat Apr 29 09:40:41.156575 2017] [rewrite:trace2] [pid 3014:tid 140574363391744] mod_rewrite.c(477): [client xx.xx.xx.xx:32622] xx.xx.xx.xx - - [example.com/sid#7fda1635d360][rid#7fda1413e0a0/subreq] [perdir /srv/www/example.com/] strip document_root prefix: /srv/www/example.com/index.php/test -> /index.php/test
[Sat Apr 29 09:40:41.156579 2017] [rewrite:trace1] [pid 3014:tid 140574363391744] mod_rewrite.c(477): [client xx.xx.xx.xx:32622] xx.xx.xx.xx - - [example.com/sid#7fda1635d360][rid#7fda1413e0a0/subreq] [perdir /srv/www/example.com/] internal redirect with /index.php/test [INTERNAL REDIRECT]
[Sat Apr 29 09:40:41.158640 2017] [proxy_fcgi:trace4] [pid 3014:tid 140574363391744] util_script.c(571): [client xx.xx.xx.xx:32622] Headers from script 'index.php':
[Sat Apr 29 09:40:41.158661 2017] [proxy_fcgi:trace4] [pid 3014:tid 140574363391744] util_script.c(572): [client xx.xx.xx.xx:32622]   Content-type: text/html; charset=UTF-8

/ testのトレース：

[Sat Apr 29 09:45:01.600510 2017] [rewrite:trace3] [pid 3013:tid 140574514460416] mod_rewrite.c(477): [client xx.xx.xx.xx:32639] xx.xx.xx.xx - - [example.com/sid#7fda1635d360][rid#7fda141b40a0/initial] [perdir /srv/www/example.com/] strip per-dir prefix: /srv/www/example.com/test -> test
[Sat Apr 29 09:45:01.600527 2017] [rewrite:trace3] [pid 3013:tid 140574514460416] mod_rewrite.c(477): [client xx.xx.xx.xx:32639] xx.xx.xx.xx - - [example.com/sid#7fda1635d360][rid#7fda141b40a0/initial] [perdir /srv/www/example.com/] applying pattern '^(.*)$' to uri 'test'
[Sat Apr 29 09:45:01.600533 2017] [rewrite:trace4] [pid 3013:tid 140574514460416] mod_rewrite.c(477): [client xx.xx.xx.xx:32639] xx.xx.xx.xx - - [example.com/sid#7fda1635d360][rid#7fda141b40a0/initial] [perdir /srv/www/example.com/] RewriteCond: input='test' pattern='^index\\.php' => not-matched
[Sat Apr 29 09:45:01.600535 2017] [rewrite:trace3] [pid 3013:tid 140574514460416] mod_rewrite.c(477): [client xx.xx.xx.xx:32639] xx.xx.xx.xx - - [example.com/sid#7fda1635d360][rid#7fda141b40a0/initial] [perdir /srv/www/example.com/] strip per-dir prefix: /srv/www/example.com/test -> test
[Sat Apr 29 09:45:01.600537 2017] [rewrite:trace3] [pid 3013:tid 140574514460416] mod_rewrite.c(477): [client xx.xx.xx.xx:32639] xx.xx.xx.xx - - [example.com/sid#7fda1635d360][rid#7fda141b40a0/initial] [perdir /srv/www/example.com/] applying pattern '^(.*)$' to uri 'test'
[Sat Apr 29 09:45:01.600540 2017] [rewrite:trace2] [pid 3013:tid 140574514460416] mod_rewrite.c(477): [client xx.xx.xx.xx:32639] xx.xx.xx.xx - - [example.com/sid#7fda1635d360][rid#7fda141b40a0/initial] [perdir /srv/www/example.com/] rewrite 'test' -> 'index.php/test'
[Sat Apr 29 09:45:01.600550 2017] [rewrite:trace3] [pid 3013:tid 140574514460416] mod_rewrite.c(477): [client xx.xx.xx.xx:32639] xx.xx.xx.xx - - [example.com/sid#7fda1635d360][rid#7fda141b40a0/initial] [perdir /srv/www/example.com/] add per-dir prefix: index.php/test -> /srv/www/example.com/index.php/test
[Sat Apr 29 09:45:01.600553 2017] [rewrite:trace2] [pid 3013:tid 140574514460416] mod_rewrite.c(477): [client xx.xx.xx.xx:32639] xx.xx.xx.xx - - [example.com/sid#7fda1635d360][rid#7fda141b40a0/initial] [perdir /srv/www/example.com/] forcing '/srv/www/example.com/index.php/test' to get passed through to next API URI-to-filename handler
[Sat Apr 29 09:45:01.600556 2017] [rewrite:trace2] [pid 3013:tid 140574514460416] mod_rewrite.c(477): [client xx.xx.xx.xx:32639] xx.xx.xx.xx - - [example.com/sid#7fda1635d360][rid#7fda141b40a0/initial] [perdir /srv/www/example.com/] strip document_root prefix: /srv/www/example.com/index.php/test -> /index.php/test
[Sat Apr 29 09:45:01.600560 2017] [rewrite:trace1] [pid 3013:tid 140574514460416] mod_rewrite.c(477): [client xx.xx.xx.xx:32639] xx.xx.xx.xx - - [example.com/sid#7fda1635d360][rid#7fda141b40a0/initial] [perdir /srv/www/example.com/] internal redirect with /index.php/test [INTERNAL REDIRECT]
[Sat Apr 29 09:45:01.600621 2017] [rewrite:trace3] [pid 3013:tid 140574514460416] mod_rewrite.c(477): [client xx.xx.xx.xx:32639] xx.xx.xx.xx - - [example.com/sid#7fda1635d360][rid#7fda141a1a78/initial/redir#1] [perdir /srv/www/example.com/] add path info postfix: /srv/www/example.com/index.php -> /srv/www/example.com/index.php/test
[Sat Apr 29 09:45:01.600626 2017] [rewrite:trace3] [pid 3013:tid 140574514460416] mod_rewrite.c(477): [client xx.xx.xx.xx:32639] xx.xx.xx.xx - - [example.com/sid#7fda1635d360][rid#7fda141a1a78/initial/redir#1] [perdir /srv/www/example.com/] strip per-dir prefix: /srv/www/example.com/index.php/test -> index.php/test
[Sat Apr 29 09:45:01.600628 2017] [rewrite:trace3] [pid 3013:tid 140574514460416] mod_rewrite.c(477): [client xx.xx.xx.xx:32639] xx.xx.xx.xx - - [example.com/sid#7fda1635d360][rid#7fda141a1a78/initial/redir#1] [perdir /srv/www/example.com/] applying pattern '^(.*)$' to uri 'index.php/test'
[Sat Apr 29 09:45:01.600643 2017] [rewrite:trace4] [pid 3013:tid 140574514460416] mod_rewrite.c(477): [client xx.xx.xx.xx:32639] xx.xx.xx.xx - - [example.com/sid#7fda1635d360][rid#7fda141a1a78/initial/redir#1] [perdir /srv/www/example.com/] RewriteCond: input='index.php/test' pattern='^index\\.php' => matched
[Sat Apr 29 09:45:01.600646 2017] [rewrite:trace2] [pid 3013:tid 140574514460416] mod_rewrite.c(477): [client xx.xx.xx.xx:32639] xx.xx.xx.xx - - [example.com/sid#7fda1635d360][rid#7fda141a1a78/initial/redir#1] [perdir /srv/www/example.com/] forcing '/srv/www/example.com/index.php' to get passed through to next API URI-to-filename handler
[Sat Apr 29 09:45:01.600648 2017] [rewrite:trace1] [pid 3013:tid 140574514460416] mod_rewrite.c(477): [client xx.xx.xx.xx:32639] xx.xx.xx.xx - - [example.com/sid#7fda1635d360][rid#7fda141a1a78/initial/redir#1] [perdir /srv/www/example.com/] initial URL equal rewritten URL: /srv/www/example.com/index.php [IGNORING REWRITE]
[Sat Apr 29 09:45:01.600664 2017] [proxy_fcgi:debug] [pid 3013:tid 140574514460416] mod_proxy_fcgi.c(913): [client xx.xx.xx.xx:32639] AH01076: url: fcgi://localhost/srv/www/example.com/index.php proxyname: (null) proxyport: 0
[Sat Apr 29 09:45:01.600666 2017] [proxy_fcgi:debug] [pid 3013:tid 140574514460416] mod_proxy_fcgi.c(920): [client xx.xx.xx.xx:32639] AH01078: serving URL fcgi://localhost/srv/www/example.com/index.php
[Sat Apr 29 09:45:01.600790 2017] [rewrite:trace3] [pid 3013:tid 140574514460416] mod_rewrite.c(477): [client xx.xx.xx.xx:32639] xx.xx.xx.xx - - [example.com/sid#7fda1635d360][rid#7fda141a30a0/subreq] [perdir /srv/www/example.com/] strip per-dir prefix: /srv/www/example.com/test -> test
[Sat Apr 29 09:45:01.600795 2017] [rewrite:trace3] [pid 3013:tid 140574514460416] mod_rewrite.c(477): [client xx.xx.xx.xx:32639] xx.xx.xx.xx - - [example.com/sid#7fda1635d360][rid#7fda141a30a0/subreq] [perdir /srv/www/example.com/] applying pattern '^(.*)$' to uri 'test'
[Sat Apr 29 09:45:01.600799 2017] [rewrite:trace4] [pid 3013:tid 140574514460416] mod_rewrite.c(477): [client xx.xx.xx.xx:32639] xx.xx.xx.xx - - [example.com/sid#7fda1635d360][rid#7fda141a30a0/subreq] [perdir /srv/www/example.com/] RewriteCond: input='test' pattern='^index\\.php' => not-matched
[Sat Apr 29 09:45:01.600801 2017] [rewrite:trace3] [pid 3013:tid 140574514460416] mod_rewrite.c(477): [client xx.xx.xx.xx:32639] xx.xx.xx.xx - - [example.com/sid#7fda1635d360][rid#7fda141a30a0/subreq] [perdir /srv/www/example.com/] strip per-dir prefix: /srv/www/example.com/test -> test
[Sat Apr 29 09:45:01.600803 2017] [rewrite:trace3] [pid 3013:tid 140574514460416] mod_rewrite.c(477): [client xx.xx.xx.xx:32639] xx.xx.xx.xx - - [example.com/sid#7fda1635d360][rid#7fda141a30a0/subreq] [perdir /srv/www/example.com/] applying pattern '^(.*)$' to uri 'test'
[Sat Apr 29 09:45:01.600805 2017] [rewrite:trace2] [pid 3013:tid 140574514460416] mod_rewrite.c(477): [client xx.xx.xx.xx:32639] xx.xx.xx.xx - - [example.com/sid#7fda1635d360][rid#7fda141a30a0/subreq] [perdir /srv/www/example.com/] rewrite 'test' -> 'index.php/test'
[Sat Apr 29 09:45:01.600807 2017] [rewrite:trace3] [pid 3013:tid 140574514460416] mod_rewrite.c(477): [client xx.xx.xx.xx:32639] xx.xx.xx.xx - - [example.com/sid#7fda1635d360][rid#7fda141a30a0/subreq] [perdir /srv/www/example.com/] add per-dir prefix: index.php/test -> /srv/www/example.com/index.php/test
[Sat Apr 29 09:45:01.600810 2017] [rewrite:trace2] [pid 3013:tid 140574514460416] mod_rewrite.c(477): [client xx.xx.xx.xx:32639] xx.xx.xx.xx - - [example.com/sid#7fda1635d360][rid#7fda141a30a0/subreq] [perdir /srv/www/example.com/] forcing '/srv/www/example.com/index.php/test' to get passed through to next API URI-to-filename handler
[Sat Apr 29 09:45:01.600813 2017] [rewrite:trace2] [pid 3013:tid 140574514460416] mod_rewrite.c(477): [client xx.xx.xx.xx:32639] xx.xx.xx.xx - - [example.com/sid#7fda1635d360][rid#7fda141a30a0/subreq] [perdir /srv/www/example.com/] strip document_root prefix: /srv/www/example.com/index.php/test -> /index.php/test
[Sat Apr 29 09:45:01.600815 2017] [rewrite:trace1] [pid 3013:tid 140574514460416] mod_rewrite.c(477): [client xx.xx.xx.xx:32639] xx.xx.xx.xx - - [example.com/sid#7fda1635d360][rid#7fda141a30a0/subreq] [perdir /srv/www/example.com/] internal redirect with /index.php/test [INTERNAL REDIRECT]
[Sat Apr 29 09:45:01.602797 2017] [proxy_fcgi:error] [pid 3013:tid 140574514460416] [client xx.xx.xx.xx:32639] AH01071: Got error 'Primary script unknown\n'
[Sat Apr 29 09:45:01.602833 2017] [proxy_fcgi:trace4] [pid 3013:tid 140574514460416] util_script.c(571): [client xx.xx.xx.xx:32639] Headers from script 'index.php':
[Sat Apr 29 09:45:01.602839 2017] [proxy_fcgi:trace4] [pid 3013:tid 140574514460416] util_script.c(572): [client xx.xx.xx.xx:32639]   Status: 404 Not Found
[Sat Apr 29 09:45:01.602842 2017] [proxy_fcgi:trace4] [pid 3013:tid 140574514460416] util_script.c(572): [client xx.xx.xx.xx:32639]   Content-type: text/html; charset=UTF-8

ApacheにURLを適切に書き換えさせ、同時にPATH_INFOを渡すにはどうすればよいですか？

注：この質問は Apache 2.4 + PHP-FPM + ProxyPassMatch に似ているように見えるかもしれませんが、私の場合はすでにSetHandlerを使用しています。問題はPATH_INFOの部分にあり、そこでの答えは解決されていないようです。

apache-2.4mod-rewritephp-fpmmod-proxy-fcgi
3
Disassembler

数日間の苦労の末、ApacheとPHP-FPMの間で送信されたCGIヘッダーをキャプチャして調べ、これらのコンポーネントの異なるバージョンでも同じことをテストしました。 Apacheのバージョンが異なればSCRIPT_FILENAME変数の設定も異なり、PHP-FPMでは考慮されていないことがわかりました。
Apache 2.4.18（私が使用するUbuntu 16.04のデフォルト）は、変数を次のように設定します。

SCRIPT_FILENAME proxy:fcgi://localhost/srv/www/index.php

一方、Apache 2.4.25は次のように設定します。

SCRIPT_FILENAME /srv/www/index.php

Mod_proxy_fcgiのApacheドキュメントには、Apache 2.4.26（2017-05-02の時点ではまだリリースされていません）以降に使用可能なディレクティブ ProxyFCGIBackendType が記載されており、デフォルトは「FPM」です。説明には次の注記があります。

このディレクティブの設定に基づいて変更される値の1つの例は、SCRIPT_FILENAMEです。歴史的にmod_proxy_fcgiを使用する場合、SCRIPT_FILENAMEには文字列「proxy：fcgi：//」がプレフィックスとして付加されていました。この変数は、一部の汎用FastCGIアプリケーションがスクリプト入力として読み取るものですが、PHP-FPMはプレフィックスを削除し、Apacheと通信していたことを記憶します。 2.4.21から2.4.25では、このプレフィックスはサーバーによって自動的に取り除かれ、PHP-FPMが一部のシナリオでApacheを検出して相互運用する機能を破壊しました。

私は偶然に「いくつかのシナリオ」を見つけたようです。 バグが含まれているため、Apache 2.4.21から2.4.25を使用しないでください。下位バージョンを使用するか、バグが修正された新しいバージョンを待ちます。

4
Disassembler