删除域名后面的斜杠

Question

这是我的.htaccess文件:

<IfModule mod_rewrite.c>
    RewriteEngine On
    RewriteBase /
    # Remove multiple slashes anywhere in URL
    RewriteCond %{REQUEST_URI} ^(.*)//(.*)$
    RewriteRule . %1/%2 [R=301,L]
    # Never use www prefix!
    RewriteCond %{HTTP_HOST} ^www.domain.org [NC]
    RewriteRule (.*) http://domain.org/$1 [R=301,L]
    # Remove multiple slashes after domain
    RewriteRule ^/(.*)$ http://domain.org/$1 [R=301,L] 
    # Remove trailing slash in some cases
    RewriteRule ^(.*).css/$ http://domain.org/$1.css [L,R=301]
    RewriteRule ^(.*).js/$ http://domain.org/$1.js [L,R=301]
    RewriteRule ^(.*).jpg/$ http://domain.org/$1.jpg [L,R=301]
    RewriteRule ^(.*).jpeg/$ http://domain.org/$1.jpeg [L,R=301]
    RewriteRule ^(.*).png/$ http://domain.org/$1.png [L,R=301]
    RewriteRule ^(.*).gif/$ http://domain.org/$1.gif [L,R=301]
    RewriteRule ^(.*).xml/$ http://domain.org/$1.xml [L,R=301]
    # Force trailing slash
    RewriteCond %{REQUEST_FILENAME} !-f
    RewriteCond %{REQUEST_URI} !index.php
    RewriteCond %{REQUEST_URI} !(.*).css
    RewriteCond %{REQUEST_URI} !(.*).js
    RewriteCond %{REQUEST_URI} !(.*).jpg
    RewriteCond %{REQUEST_URI} !(.*).jpeg
    RewriteCond %{REQUEST_URI} !(.*).png
    RewriteCond %{REQUEST_URI} !(.*).gif
    RewriteCond %{REQUEST_URI} !(.*).xml
    RewriteCond %{REQUEST_URI} !(.*)/$
    RewriteRule ^(.*)$ http://mydomain.org/$1/ [L,R=301]
    #Removes access to the system folder by users.
    #Additionally this will allow you to create a System.php controller,
    #previously this would not have been possible.
    #'system' can be replaced if you have renamed your system folder.
    RewriteCond %{REQUEST_URI} ^system.*
    RewriteRule ^(.*)$ /index.php?/$1 [L]
    #Checks to see if the user is attempting to access a valid file,
    #such as an image or css document, if this isn't true it sends the
    #request to index.php
    RewriteCond %{REQUEST_FILENAME} !-f
    RewriteCond %{REQUEST_FILENAME} !-d
    RewriteRule ^(.*)$ index.php?/$1 [L]
    # MIME types
    AddType text/css .css
    AddType text/javascript .js
    # Enable compression
    AddOutputFilterByType DEFLATE text/html text/plain text/css     text/javascript text/x-css text/x-javascript text/x-js text/htm application/x-javascript application/javascript application/js application/x-js image/png image/gif image/jpg image/jpeg
    #Skip browsers with known problems
    BrowserMatch ^Mozilla/4 gzip-only-text/html
    BrowserMatch ^Mozilla/4.0[678] no-gzip
    BrowserMatch bMSIE !no-gzip !gzip-only-text/html
    php_flag display_errors on
</IfModule>
<IfModule !mod_rewrite.c>
    ErrorDocument 404 /index.php
</IfModule>

但是，当我转到**/////时，后面的斜杠不会消失。我做错了什么?

Answer 1

%{REQUEST_URI}变量在准备时减少了额外的斜杠。所以条件RewriteCond %{REQUEST_URI} ^(.*)//(.*)$将永远不会匹配，因为对于像http://domain.org////这样的请求，REQUEST_URI变量被减少到只是/。尝试使用THE_REQUEST变量:

RewriteCond %{THE_REQUEST} ^([A-Z]{3,9}) (.*)//([^ ]*)
RewriteRule ^ %2/%3 [R=301,L]

此外，当重写规则位于htaccess文件中时，前缀(前导斜杠)从请求URI中剥离，因此规则RewriteRule . %1/%2 [R=301,L]将永远无法匹配，因为正则表达式。至少需要一个字符匹配。当URI为/并且去掉前导斜杠时，用于在url中匹配的URI是一个空字符串。因此，使用^，或(.*)，或相当于"everything包括nothing"的东西需要使用regex。