Symfony 使用 mod_rewrite 导致重定向错误答案

【问题标题】：Symfony causing redirect error with mod_rewriteSymfony 使用 mod_rewrite 导致重定向错误
【发布时间】：2016-03-27 17:45:31
【问题描述】：

我在 CentOS 7 虚拟机上运行了 symfony 2.8。现在，当我尝试访问我的站点时，出现内部服务器错误。当我检查日志时，它说：

Request exceeded the limit of 10 internal redirects due to probable configuration error

我将 apache 中的 LogLevel 设置为 trace3，看起来 app.php 周围有一大堆重定向。我不确定发生了什么。我没有修改 symfony 附带的 .htaccess 文件。这是我的 .htaccess 文件中的 mod_rewrite 块：

<IfModule mod_rewrite.c>
    RewriteEngine On

    # Determine the RewriteBase automatically and set it as environment variable.
    # If you are using Apache aliases to do mass virtual hosting or installed the
    # project in a subdirectory, the base path will be prepended to allow proper
    # resolution of the app.php file and to redirect to the correct URI. It will
    # work in environments without path prefix as well, providing a safe, one-size
    # fits all solution. But as you do not need it in this case, you can comment
    # the following 2 lines to eliminate the overhead.
    RewriteCond %{REQUEST_URI}::$1 ^(/.+)/(.*)::\2$
    RewriteRule ^(.*) - [E=BASE:%1]

    # Sets the HTTP_AUTHORIZATION header removed by apache
    RewriteCond %{HTTP:Authorization} .
    RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization}]

    # Redirect to URI without front controller to prevent duplicate content
    # (with and without `/app.php`). Only do this redirect on the initial
    # rewrite by Apache and not on subsequent cycles. Otherwise we would get an
    # endless redirect loop (request -> rewrite to front controller ->
    # redirect -> request -> ...).
    # So in case you get a "too many redirects" error or you always get redirected
    # to the start page because your Apache does not expose the REDIRECT_STATUS
    # environment variable, you have 2 choices:
    # - disable this feature by commenting the following 2 lines or
    # - use Apache >= 2.3.9 and replace all L flags by END flags and remove the
    #   following RewriteCond (best solution)
    RewriteCond %{ENV:REDIRECT_STATUS} ^$
    RewriteRule ^app\.php(/(.*)|$) %{ENV:BASE}/$2 [R=301,L]

    # If the requested filename exists, simply serve it.
    # We only want to let Apache serve files and not directories.
    RewriteCond %{REQUEST_FILENAME} -f
    RewriteRule .? - [L]

    # Rewrite all other queries to the front controller.
    RewriteRule .? %{ENV:BASE}/app.php [L]
</IfModule>

这是我的 httpd.conf（不用担心任何安全问题。这只是用于开发目的的本地安装）

# Security
ServerTokens OS
ServerSignature On
TraceEnable On

ServerName "dev.indygaa.vm"
ServerRoot "/etc/httpd"
PidFile run/httpd.pid
Timeout 120
KeepAlive Off
MaxKeepAliveRequests 100
KeepAliveTimeout 15


User apache
Group apache

AccessFileName .htaccess
<FilesMatch "^\.ht">
    Require all denied
</FilesMatch>

<Directory />
  Options FollowSymLinks
  AllowOverride All
</Directory>


HostnameLookups Off
ErrorLog "/var/log/httpd/error_log"
LogLevel trace3
EnableSendfile On

#Listen 80


Include "/etc/httpd/conf.d/*.load"
Include "/etc/httpd/conf/ports.conf"

LogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\"" combined
LogFormat "%h %l %u %t \"%r\" %>s %b" common
LogFormat "%{Referer}i -> %U" referer
LogFormat "%{User-agent}i" agent

IncludeOptional "/etc/httpd/conf.d/*.conf"

我看不到这个重定向一直在哪里发生。我错过了什么？

【问题讨论】：

标签： php .htaccess mod-rewrite apache2 symfony-2.8

【解决方案1】：

将您的最后一个 RewriteRule 更改为：

RewriteRule !/app\.php$ %{ENV:BASE}/app.php [L,NC]

【讨论】：

导致 404 Not Found for app.php
这只是意味着%{ENV:BASE}/app.php（即当前目录中的app.php）不存在。
好的。我怀疑可能没有尝试从正确的文档根目录中提取。我怎么知道它试图从哪里拉 app.php？
如果app.php 与.htaccess 存在于同一文件夹中，则可以尝试：RewriteRule !^app\.php$ app.php [L,NC]
哦，好吧，那么最好使用正确的已知路径而不是%{ENV:BASE}