教你几个便捷的.htaccess 用法技巧

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这里收集的是各种实用的 .htaccess 代码片段，你能想到的用法几乎全在这里。

免责声明: 虽然将这些代码片段直接拷贝到你的 .htaccess文件里，绝大多数情况下都是好用的，但也有极个别情况需要你修改某些地方才行。风险自负。

重要提示: Apache 2.4 有不兼容的修改，特别是在访问配置控制方面。详细信息请参考这篇更新文档以及这篇文章。

目录

• 重新和重定向

  • 强制 www

  • 强制 www通用方法

  • 强制 non-www

  • 强制 non-www通用方法

  • 强制 HTTPS

  • 强制 HTTPS 通过代理

  • 强制添加末尾斜杠

  • 取掉末尾斜杠

  • 重定向到一个页面

  • 目录别名

  • 脚本别名

  • 重定向整个网站

  • 干净的URL

• 安全

  • 拒绝所有访问

  • 拒绝所有访问(排除部分)

  • 屏蔽爬虫/恶意访问

  • 保护隐藏文件和目录

  • 保护备份文件和源代码文件

  • 禁止目录浏览

  • 禁止图片盗链

  • 禁止图片盗链(指定域名)

  • 密码保护目录

  • 密码保护文件

  • 通过Referrer过滤访客

  • 防止被别的网页嵌套

• 性能

  • 压缩文件

  • 设置过期头信息

  • 关闭eTags标志

• 其它

  • 设置PHP变量

  • Custom Error Pages

  • 强制下载

  • 阻止下载

  • 运行跨域字体引用

  • Auto UTF-8 Encode

  • 切换PHP版本

  • 禁止IE兼容视图

  • 支持WebP图片格式

重新和重定向

注意：首先需要服务器安装和启用mod_rewrite模块。

强制 www

RewriteEngine on RewriteCond %{HTTP_HOST} ^example/.com [NC]RewriteRule ^(.*)$ http://www.example.com/$1 [L,R=301,NC]

强制 www通用方法

RewriteCond %{HTTP_HOST} !^$ RewriteCond %{HTTP_HOST} !^www/. [NC]RewriteCond %{HTTPS}s ^on(s)|RewriteRule ^ http%1://www.%{HTTP_HOST}%{REQUEST_URI} [R=301,L]

这种方法可以使用在任何网站中。 Source

强制 non-www

究竟是WWW好，还是non-www好，没有定论，如果你喜欢不带www的，可以使用下面的脚本：

RewriteEngine on RewriteCond %{HTTP_HOST} ^www/.example/.com [NC]RewriteRule ^(.*)$ http://example.com/$1 [L,R=301]

强制 non-www通用方法

RewriteEngine on RewriteCond %{HTTP_HOST} ^www/. RewriteCond %{HTTPS}s ^on(s)|off RewriteCond http%1://%{HTTP_HOST} ^(https?://)(www/.)?(.+)$ RewriteRule ^ %1%3%{REQUEST_URI} [R=301,L]

强制 HTTPS

RewriteEngine on RewriteCond %{HTTPS} !on RewriteRule (.*) https://%{HTTP_HOST}%{REQUEST_URI}# Note: It's also recommended to enable HTTP Strict Transport Security (HSTS) # on your HTTPS website to help prevent man-in-the-middle attacks.# See https://developer.mozilla.org/en-US/docs/Web/Security/HTTP_strict_transport_security<IfModule mod_headers.c>     Header always set Strict-Transport-Security "max-age=31536000; includeSubDomains"</IfModule>

强制 HTTPS 通过代理

如果你使用了代理，这种方法对你很有用。

RewriteCond %{HTTP:X-Forwarded-Proto} !https RewriteRule (.*) https://%{HTTP_HOST}%{REQUEST_URI}

强制添加末尾斜杠

RewriteCond %{REQUEST_URI} /+[^/.]+$ RewriteRule ^(.+[^/])$ %{REQUEST_URI}/ [R=301,L]

取掉末尾斜杠

RewriteCond %{REQUEST_FILENAME} !-d RewriteRule ^(.*)/$ /$1 [R=301,L]

重定向到一个页面

Redirect 301 /oldpage.html http://www.example.com/newpage.html Redirect 301 /oldpage2.html http://www.example.com/folder/

Source

目录别名

RewriteEngine On RewriteRule ^source-directory/(.*) target-directory/$1

脚本别名

FallbackResource /index.fcgi

This example has an index.fcgifile in some directory, and any requests within that directory that fail to resolve a filename/directory will be sent to the index.fcgiscript. It’s good if you want baz.foo/some/cool/pathto be handled by baz.foo/index.fcgi(which also supports requests to baz.foo) while maintaining baz.foo/css/style.cssand the like. Get access to the original path from the PATH_INFO environment variable, as exposed to your scripting environment.

RewriteEngine On RewriteRule ^$ index.fcgi/ [QSA,L]RewriteCond %{REQUEST_FILENAME} !-f RewriteCond %{REQUEST_FILENAME} !-d RewriteRule ^(.*)$ index.fcgi/$1 [QSA,L]

This is a less efficient version of the FallbackResource directive (because using mod_rewriteis more complex than just handling the FallbackResourcedirective), but it’s also more flexible.

重定向整个网站

Redirect 301 / http://newsite.com/

This way does it with links intact. That is www.oldsite.com/some/crazy/link.htmlwill become www.newsite.com/some/crazy/link.html. This is extremely helpful when you are just “moving” a site to a new domain. Source

干净的URL

This snippet lets you use “clean” URLs — those without a PHP extension, e.g. example.com/usersinstead of example.com/users.php.

RewriteEngine On RewriteCond %{SCRIPT_FILENAME} !-d RewriteRule ^([^.]+)$ $1.php [NC,L]

Source

Security

拒绝所有访问

## Apache 2.2Deny from all## Apache 2.4# Require all denied

But wait, this will lock you out from your content as well! Thus introducing…

拒绝所有访问(排除部分)

## Apache 2.2Order deny,allow Deny from all Allow from xxx.xxx.xxx.xxx## Apache 2.4# Require all denied# Require ip xxx.xxx.xxx.xxx

xxx.xxx.xxx.xxxis your IP. If you replace the last three digits with 0/12 for example, this will specify a range of IPs within the same network, thus saving you the trouble to list all allowed IPs separately. Source

Now of course there’s a reversed version:

屏蔽爬虫/恶意访问

## Apache 2.2Order deny,allow Allow from all Deny from xxx.xxx.xxx.xxx Deny from xxx.xxx.xxx.xxy## Apache 2.4# Require all granted# Require not ip xxx.xxx.xxx.xxx# Require not ip xxx.xxx.xxx.xxy

保护隐藏文件和目录

Hidden files and directories (those whose names start with a dot .) should most, if not all, of the time be secured. For example: .htaccess, .htpasswd, .git, .hg…

RewriteCond %{SCRIPT_FILENAME} -d [OR]RewriteCond %{SCRIPT_FILENAME} -f RewriteRule "(^|/)/." - [F]

Alternatively, you can just raise a Not Founderror, giving the attacker dude no clue:

RedirectMatch 404 //..*$

保护备份文件和源代码文件

These files may be left by some text/html editors (like Vi/Vim) and pose a great security danger if exposed to public.

<FilesMatch "(/.(bak|config|dist|fla|inc|ini|log|psd|sh|sql|swp)|~)$">     ## Apache 2.2     Order allow,deny     Deny from all     Satisfy All    ## Apache 2.4     # Require all denied</FilesMatch>

Source

禁止目录浏览

Options All -Indexes

禁止图片盗链

RewriteEngine on# Remove the following line if you want to block blank referrer tooRewriteCond %{HTTP_REFERER} !^$ RewriteCond %{HTTP_REFERER} !^http(s)?://(.+/.)?example.com [NC]RewriteRule /.(jpg|jpeg|png|gif|bmp)$ - [NC,F,L]# If you want to display a "blocked" banner in place of the hotlinked image, # replace the above rule with:# RewriteRule /.(jpg|jpeg|png|gif|bmp) http://example.com/blocked.png [R,L]

禁止图片盗链(指定域名)

Sometimes you want to 禁止图片盗链 from some bad guys only.

RewriteEngine on RewriteCond %{HTTP_REFERER} ^http(s)?://(.+/.)?badsite/.com [NC,OR]RewriteCond %{HTTP_REFERER} ^http(s)?://(.+/.)?badsite2/.com [NC,OR]RewriteRule /.(jpg|jpeg|png|gif)$ - [NC,F,L]# If you want to display a "blocked" banner in place of the hotlinked image, # replace the above rule with:# RewriteRule /.(jpg|jpeg|png|gif|bmp) http://example.com/blocked.png [R,L]

密码保护目录

First you need to create a .htpasswdfile somewhere in the system:

htpasswd -c /home/fellowship/.htpasswd boromir

Then you can use it for authentication:

AuthType Basic AuthName "One does not simply"AuthUserFile /home/fellowship/.htpasswd Require valid-user

密码保护文件

AuthName "One still does not simply"AuthType Basic AuthUserFile /home/fellowship/.htpasswd<Files "one-ring.o">Require valid-user</Files><FilesMatch ^((one|two|three)-rings?/.o)$>Require valid-user</FilesMatch>

通过Referrer过滤访客

This denies access for all users who are coming from (referred by) a specific domain.
Source

RewriteEngine on# Options +FollowSymlinksRewriteCond %{HTTP_REFERER} somedomain/.com [NC,OR]RewriteCond %{HTTP_REFERER} anotherdomain/.com RewriteRule .* - [F]

防止被别的网页嵌套

This prevents the website to be framed (i.e. put into an iframetag), when still allows framing for a specific URI.

SetEnvIf Request_URI "/starry-night" allow_framing=true Header set X-Frame-Options SAMEORIGIN env=!allow_framing

Performance

压缩文件

<IfModule mod_deflate.c>     # 强制 compression for mangled headers.     # http://developer.yahoo.com/blogs/ydn/posts/2010/12/pushing-beyond-gzipping     <IfModule mod_setenvif.c>         <IfModule mod_headers.c>             SetEnvIfNoCase ^(Accept-EncodXng|X-cept-Encoding|X{15}|~{15}|-{15})$ ^((gzip|deflate)/s*,?/s*)+|[X~-]{4,13}$ HAVE_Accept-Encoding             RequestHeader append Accept-Encoding "gzip,deflate" env=HAVE_Accept-Encoding        </IfModule>     </IfModule>     # Compress all output labeled with one of the following MIME-types     # (for Apache versions below 2.3.7, you don't need to enable `mod_filter`     #  and can remove the `<IfModule mod_filter.c>` and `</IfModule>` lines     #  as `AddOutputFilterByType` is still in the core directives).     <IfModule mod_filter.c>         AddOutputFilterByType DEFLATE application/atom+xml /                                       application/javascript /                                       application/json /                                       application/rss+xml /                                       application/vnd.ms-fontobject /                                       application/x-font-ttf /                                       application/x-web-app-manifest+json /                                       application/xhtml+xml /                                       application/xml /                                       font/opentype /                                       image/svg+xml /                                       image/x-icon /                                       text/css /                                       text/html /                                       text/plain /                                       text/x-component /                                       text/xml    </IfModule></IfModule>

Source

设置过期头信息

Expires headerstell the browser whether they should request a specific file from the server or just grab it from the cache. It is advisable to set static content’s expires headers to something far in the future.
If you don’t control versioning with filename-based cache busting, consider lowering the cache time for resources like CSS and JS to something like 1 week. Source

<IfModule mod_expires.c>     ExpiresActive on     ExpiresDefault                                      "access plus 1 month"   # CSS     ExpiresByType text/css                              "access plus 1 year"   # Data interchange     ExpiresByType application/json                      "access plus 0 seconds"     ExpiresByType application/xml                       "access plus 0 seconds"     ExpiresByType text/xml                              "access plus 0 seconds"   # Favicon (cannot be renamed!)     ExpiresByType image/x-icon                          "access plus 1 week"   # HTML components (HTCs)     ExpiresByType text/x-component                      "access plus 1 month"   # HTML     ExpiresByType text/html                             "access plus 0 seconds"   # JavaScript     ExpiresByType application/javascript                "access plus 1 year"   # Manifest files     ExpiresByType application/x-web-app-manifest+json   "access plus 0 seconds"     ExpiresByType text/cache-manifest                   "access plus 0 seconds"   # Media     ExpiresByType audio/ogg                             "access plus 1 month"     ExpiresByType image/gif                             "access plus 1 month"     ExpiresByType image/jpeg                            "access plus 1 month"     ExpiresByType image/png                             "access plus 1 month"     ExpiresByType video/mp4                             "access plus 1 month"     ExpiresByType video/ogg                             "access plus 1 month"     ExpiresByType video/webm                            "access plus 1 month"   # Web feeds     ExpiresByType application/atom+xml                  "access plus 1 hour"     ExpiresByType application/rss+xml                   "access plus 1 hour"   # Web fonts     ExpiresByType application/font-woff2                "access plus 1 month"     ExpiresByType application/font-woff                 "access plus 1 month"     ExpiresByType application/vnd.ms-fontobject         "access plus 1 month"     ExpiresByType application/x-font-ttf                "access plus 1 month"     ExpiresByType font/opentype                         "access plus 1 month"     ExpiresByType image/svg+xml                         "access plus 1 month"</IfModule>

关闭eTags标志

By removing the ETagheader, you disable caches and browsers from being able to validate files, so they are forced to rely on your Cache-Controland Expiresheader. Source

<IfModule mod_headers.c>     Header unset ETag</IfModule>FileETag None

Miscellaneous

设置PHP变量

php_value <key> <val># For example:php_value upload_max_filesize 50M php_value max_execution_time 240

Custom Error Pages

ErrorDocument 500 "Houston, we have a problem."ErrorDocument 401 http://error.example.com/mordor.html ErrorDocument 404 /errors/halflife3.html

强制下载

Sometimes you want to 强制 the browser to download some content instead of displaying it.

<Files *.md>     ForceType application/octet-stream     Header set Content-Disposition attachment</Files>

Now there is a yang to this yin:

阻止下载

Sometimes you want to 强制 the browser to display some content instead of downloading it.

<FilesMatch "/.(tex|log|aux)$">     Header set Content-Type text/plain</FilesMatch>

运行跨域字体引用

CDN-served webfonts might not work in Firefox or IE due to CORS. This snippet solves the problem.

<IfModule mod_headers.c>     <FilesMatch "/.(eot|otf|ttc|ttf|woff|woff2)$">         Header set Access-Control-Allow-Origin "*"     </FilesMatch></IfModule>

Source

Auto UTF-8 Encode

Your text content should always be UTF-8 encoded, no?

# Use UTF-8 encoding for anything served text/plain or text/htmlAddDefaultCharset utf-8# 强制 UTF-8 for a number of file formatsAddCharset utf-8 .atom .css .js .json .rss .vtt .xml

Source

切换PHP版本

If you’re on a shared host, chances are there are more than one version of PHP installed, and sometimes you want a specific version for your website. For example, Laravelrequires PHP >= 5.4. The following snippet should switch the PHP version for you.

AddHandler application/x-httpd-php55 .php# Alternatively, you can use AddTypeAddType application/x-httpd-php55 .php

禁止IE兼容视图

Compatibility View in IE may affect how some websites are displayed. The following snippet should 强制 IE to use the Edge Rendering Engine and disable the Compatibility View.

<IfModule mod_headers.c>     BrowserMatch MSIE is-msie     Header set X-UA-Compatible IE=edge env=is-msie</IfModule>

支持WebP图片格式

If WebP imagesare supported and an image with a .webp extension and the same name is found at the same place as the jpg/png image that is going to be served, then the WebP image is served instead.

RewriteEngine On RewriteCond %{HTTP_ACCEPT} image/webp RewriteCond %{DOCUMENT_ROOT}/$1.webp -f RewriteRule (.+)/.(jpe?g|png)$ $1.webp [T=image/webp,E=accept:1]

Source