Question

我正在尝试为Mobile Safari版本创建浏览器嗅探器，问题是重定向会创建一个无限循环，显然，我想知道是否有办法执行此操作：

http://mydomain.com（或任何其他requets_uri）[301] - ＆gt; http://mydomain.com/ipad

这是我正在使用的片段：

RewriteCond %{REQUEST_URI} !^ipad #Trying to set the condition "if /ipad is not the request_uri, but it doesn't work
RewriteCond %{HTTP_USER_AGENT} .*Mobile.*Safari
RewriteRule ^(.*)$ ipad [R=301,L]

更新：这是我的（修改过的）全套mod_rewrite规则：

RewriteEngine On RewriteBase /

# iOS redirection.
RewriteCond %{REQUEST_URI} !^/ipad
RewriteCond %{HTTP_USER_AGENT} .*Mobile.*Safari
RewriteRule ^(.*)$ /ipad [R=301,L]

# If the requested URL does not exist (it's likely an agavi route),
# pass it as path info to index.php, the Agavi dispatch script.
RewriteRule ^$ index.php?/ [QSA,L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_URI}      !^/favicon.ico
RewriteRule (.*) index.php?/$1 [QSA,L]

更新2 ：最终;感谢回复，我来到下一个解决方案，我发布给任何有相同问题的人：

RewriteEngine On
RewriteBase /

# iOS redirection.
# Make sure the URL hasn't already been rewritten internally
RewriteCond %{ENV:REDIRECT_STATUS} =""
RewriteCond %{REQUEST_URI} !^/ios
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_URI}      !^/favicon.ico
RewriteCond %{HTTP_USER_AGENT} .*Mobile.*Safari
RewriteRule ^.*$ /ios [R,L]

# If the requested URL does not exist (it's likely an agavi route),
# pass it as path info to index.php, the Agavi dispatch script.
RewriteRule ^$ index.php?/ [QSA,L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_URI}      !^/favicon.ico
RewriteRule (.*) index.php?/$1 [QSA,L]

Answer 1

您的第一个RewriteCond中的测试将始终成功，因为%{REQUEST_URI}的值始终以前导斜杠开头，因此永远不能仅以“ipad”开头。尝试按如下方式修改它：

RewriteCond %{REQUEST_URI} !^/ipad
RewriteCond %{HTTP_USER_AGENT} .*Mobile.*Safari
RewriteRule ^(.*)$ /ipad [R=301,L]

由于我在外部重定向，在“ipad”之前设置正斜杠也是一个好主意，就像我在那里做的那样。如果您设置了RewriteBase，这不会成为问题，但是由于mod_rewrite如何生成新请求，您可能会遇到麻烦。

修改：您使用完整规则集时遇到的问题源于%{REQUEST_URI}的值在您的第二个规则块之后会发生变化，从而导致第一个条件重新处理规则集时再次传递。此重新处理步骤是how mod_rewrite works in a per-directory context的一部分，因此您必须将其考虑在内。幸运的是，这并不难：

RewriteEngine On
RewriteBase /

# iOS redirection.
# Make sure the URL hasn't already been rewritten internally
RewriteCond %{ENV:REDIRECT_STATUS} =""
RewriteCond %{REQUEST_URI} !^/ipad
RewriteCond %{HTTP_USER_AGENT} .*Mobile.*Safari
RewriteRule ^(.*)$ /ipad [R=301,L]

# If the requested URL does not exist (it's likely an agavi route),
# pass it as path info to index.php, the Agavi dispatch script.
RewriteRule ^$ index.php?/ [QSA,L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_URI}      !^/favicon.ico
RewriteRule (.*) index.php?/$1 [QSA,L]

带有mod_rewrite和重定向的iPad / iPhone浏览器嗅探器; “太多重定向”

1 个答案: