为什么我不能使用与此类似的 mod_rewrite
规则:
RewriteEngine On
RewriteCond %{ENV:did_rewrite} !=true
RewriteCond %{REQUEST_URI} ^(.*)/
RewriteRule (.*) %1/foo.php?original=$1 [E=did_rewrite:true]
为了防止递归?
当我打开 RewriteLogLevel
时,我看到:
[.../initial] (3) [perdir /.../test/] strip per-dir prefix: /.../test/stuff -> stuff
[.../initial] (3) [perdir /.../test/] applying pattern '(.*)' to uri 'stuff'
[.../initial] (4) [perdir /.../test/] RewriteCond: input='' pattern='!=true' => matched
[.../initial] (4) [perdir /.../test/] RewriteCond: input='/test/stuff' pattern='(.*)/' => matched
[.../initial] (2) [perdir /.../test/] rewrite 'stuff' -> '/test/foo.php?original=stuff'
[.../initial] (5) setting env variable 'did_rewrite' to 'true'
[.../initial] (3) split uri=/test/foo.php?original=stuff -> uri=/test/foo.php, args=original=stuff
[.../initial] (1) [perdir /.../test/] internal redirect with /test/foo.php [INTERNAL REDIRECT]
[.../initial/redir#1] (3) [perdir /.../test/] strip per-dir prefix: /.../test/foo.php -> foo.php
[.../initial/redir#1] (3) [perdir /.../test/] applying pattern '(.*)' to uri 'foo.php'
[.../initial/redir#1] (4) [perdir /.../test/] RewriteCond: input='' pattern='!=true' => matched
[.../initial/redir#1] (4) [perdir /.../test/] RewriteCond: input='/test/foo.php' pattern='(.*)/' => matched
[.../initial/redir#1] (2) [perdir /.../test/] rewrite 'foo.php' -> '/test/foo.php?original=foo.php'
...
看起来,在“递归”调用中,环境变量以某种方式变得未设置......但我无法弄清楚为什么会发生这种情况 .
To be clear :我知道有很多方法可以防止这种递归 . 我想了解为什么这种特殊方式不起作用 .
1 回答
我想this blog entry可能有你的答案 . 总之,当Apache执行内部重定向时,它renames all of the environment variables:
不幸的是,这似乎没有在任何地方记录 .