Apache ModRewrite keeps redirection
I'm trying to set up a site on my local Windows machine (PHP, Apache 2.4) and my redirect rules are creating an inifinite loop. I can't figure out why.
My host :
127.0.0.1 learn.loc
127.0.0.1 www.learn.loc
My Apache httpd-vhosts.conf :
<VirtualHost *:80>
DocumentRoot "C:\websites\learn"
ServerName learn.loc
ServerAlias www.learn.loc
ErrorLog "logs/learn.loc-error.log"
CustomLog "logs/learn.loc-access.log" common
LogLevel alert rewrite:trace2
#PHP SETTINGS
php_value auto_prepend_file "C:\websites\learn\noop.php"
php_value open_basedir "C:\websites\learn"
php_value error_log "C:\websites\learn\php_error.log"
<Directory "C:\websites\learn">
Options Indexes FollowSymLinks
AllowOverride All
Require all granted
</Directory>
</VirtualHost>
.htaccess (found in C:\websites\learn
)
RewriteEngine on
RewriteRule ^yii /yii-v1/blog
RewriteRule ^yii/(.*) /yii-v1/blog/$1
The webpage I'm trying to access is in C:\websites\learn\yii-v1\blog\index.php
. When I login learn.loc/yii
, the web browser is redirected indefinitely. The trace ModRewrite
shows:
[rid#1330178/initial] rewrite 'yii/blog/' -> '/yii/blog'
[rid#1330178/initial] trying to replace context docroot C:/websites/learn with context prefix
[rid#1330178/initial] internal redirect with /yii/blog [INTERNAL REDIRECT]
[rid#1331880/initial/redir#1] rewrite 'yii/blog' -> '/yii/blog'
[rid#1331880/initial/redir#1] trying to replace context docroot C:/websites/learn with context prefix
[rid#1331880/initial/redir#1] internal redirect with /yii/blog [INTERNAL REDIRECT]
[rid#1334a40/initial/redir#2] rewrite 'yii/blog' -> '/yii/blog'
[rid#1334a40/initial/redir#2] trying to replace context docroot C:/websites/learn with context prefix
[rid#1334a40/initial/redir#2] internal redirect with /yii/blog [INTERNAL REDIRECT]
[rid#1335b88/initial/redir#3] rewrite 'yii/blog' -> '/yii/blog'
[rid#1335b88/initial/redir#3] trying to replace context docroot C:/websites/learn with context prefix
[rid#1335b88/initial/redir#3] internal redirect with /yii/blog [INTERNAL REDIRECT]
[rid#1336e30/initial/redir#4] rewrite 'yii/blog' -> '/yii/blog'
...
Note that the request IDs (first column) are different, so some kind of infinite recursion is happening and I can't figure out why. No Apache or PHP errors.
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You have to bind the regex pattern in RewriteRule
to avoid this problem:
RewriteEngine on
RewriteRule ^yii/?$ /yii-v1/blog [L,NC]
RewriteRule ^yii/(.+)$ /yii-v1/blog/$1 [L,NC]
Your regex pattern ^yii
matches any URI that starts with /yii
, and since your rewritten URI also starts with /yii
, hence it keeps rewriting until the Apache module mod_rewrite
reaches the maximum limit set at the Apache server level, or the default, i.e. e. 10
...
This limit can be changed in the Apache configuration with this directive:
RewriteOptions MaxRedirects=20
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