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<?xml version="1.0" encoding="UTF-8"?>
<module xmlns="urn:lighttpd.net:lighttpd2/doc1">
<short>modifies request path and querystring</short>
<description>
<textile>
It supports matching "regular expressions":core_regex.html#core_regex and "substitution":core_pattern.html#core_pattern with captured substrings as well as other placeholders.
If your rewrite target does not contain any questionmark (@?@), then the querystring will not be altered.
If it does contain @?@ the querystring will be overwritten with the part after the @?@. To append the original querystring, use @%{request.query}@.
*IMPORTANT*: rewrite only changes the url, not the physical filename that it got mapped to by docroot or alias actions. So you need your docroot and alias actions after the rewrite.
If you have conditional rewrites like @if !phys.is_file { rewrite ... }@ you need docroot/alias both before (so it can check for the physical file) *and* after it (to build the new physical path).
</textile>
</description>
<action name="rewrite">
<short>modify request path and querystring</short>
<parameter name="rule">
<short>a simple target string or one rule, mapping a regular expression to a target string, or a list of rules.</short>
</parameter>
<description>
<textile>
* The target string is a "pattern":core_pattern.html#core_pattern.
* The "regular expressions":core_regex.html#core_regex are used to match the request path (always starts with "/" and does *not* include the query string!)
* If a list of rules is given, rewrite stops on the first match.
* Replaces the query string iff the target string contains an @?@
</textile>
</description>
<example title="Example: rewrite always">
<config>
setup {
module_load "mod_rewrite";
}
rewrite "/new/path";
</config>
</example>
<example title="Example: rewrite if match">
<config>
setup {
module_load "mod_rewrite";
}
rewrite "regex" => "/new/path";
</config>
</example>
<example title="Example: rewrite on first match">
<config>
setup {
module_load "mod_rewrite";
}
rewrite ("regex1" => "/new/path1", ..., "regexN" => "/new/pathN");
</config>
</example>
<example title="Example: pretty urls">
<description>
<textile>
Note: you really should move the logic for such rewrites into your application, and just rewrite all pretty urls to your index.php without putting the actions into the querystring.
</textile>
</description>
<config><![CDATA[
setup {
module_load "mod_rewrite";
}
# bad: routing login in webserver config:
rewrite (
"^/article/(\d+)/.*$" => "/article.php?id=$1",
"^/download/(\d+)/(.*)$" => "/download.php?fileid=$1&filename=$2"
);
rewrite "^/user/(.+)$" => "/user.php?name=$1";
# good: handle it in the backend (easier to port the config)
rewrite "^/(article|download|user)(/|$)" => "/index.php";
]]></config>
</example>
</action>
<action name="rewrite_raw">
<short>modify request path and querystring, matching and writing raw path</short>
<parameter name="rule">
<short>a simple target string or one rule, mapping a regular expression to a target string, or a list of rules.</short>
</parameter>
<description>
<textile>
Similar to "@rewrite@":mod_rewrite.html#mod_rewrite__action_rewrite, but matches the raw path (i.e. the path before URL decoding and sanitizing) and the result is decoded again.
"@rewrite@":mod_rewrite.html#mod_rewrite__action_rewrite writes the result to @request.path@ and possibly @request.query@ and uses URL encoding to generate @request.raw_path@ from those.
"@rewrite_raw@":mod_rewrite.html#mod_rewrite__action_rewrite_raw writes @request.raw_path@ and decodes it into @request.path@ and @request.query@; this means the query string is always overwritten.
In both cases @request.path@ gets simplified afterwards.
</textile>
</description>
</action>
<option name="rewrite.debug">
<short>enable debug output</short>
<default><value>false</value></default>
</option>
</module>