nginx_substitutions_filter

Note: this module is not distributed with the Nginx source. Installation instructions can be found below.

nginx_substitutions_filter is a filter module which can do both regular expression and fixed string substitutions on response bodies. This module is quite different from the Nginx's native Substitution Module. It scans the output chains buffer and matches string line by line, just like Apache's mod_substitute.

Example:

location / {
    subs_filter_types text/html text/css text/xml;
    subs_filter http://st(\\d*).example.com http://s.example.com ir;
    subs_filter http://a.example.com http://s.example.com;
}

subs_filter_types

syntax: subs_filter_types mime-type [mime-type ...]

default: subs_filter_types text/html

context: http, server, location

subs_filter_types is used to specify which content types should be checked for subs_filter. The default is only text/html.

subs_filter

syntax: subs_filter source_str destination_str [gior]

default: none

context: http, server, location

subs_filter allows replacing source string(regular expression or fixed) in the nginx response with destination string. Substitution text may contain variables. More than one substitution rules per location is supported. The meaning of the third flags are:

g(default): Replace all the match strings.
i: Perform a case-insensitive match.
o: Just replace the first one.
r: The pattern is treated as a regular expression, default is fixed string.

Installation

To install, get the source with subversion:

svn checkout http://substitutions4nginx.googlecode.com/svn/trunk/ substitutions4nginx-read-only

and then compile nginx with the following option:

--add-module=/path/to/module

CHANGES

Changes with nginx_substitutions_filter 0.4 2009-12-23

) fix many bugs

Changes with nginx_substitutions_filter 0.3 2009-02-04

) Initial public release

Reporting a bug

Questions/patches may be directed to Weibin Yao, yaoweibin@gmail.com.

NginxHttpSubsModule

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