xss-nginx-module - Native cross-site scripting support in nginx
# accessing /foo?callback=process gives the response
# body "process(...);" (without quotes) where "..."
# is the original response body of the /foo location.
server {
location /foo {
# your content handler goes here...
xss_get on;
xss_callback_arg 'callback';
xss_input_types 'application/json'; # default
xss_output_type 'application/x-javascript'; # default
}
...
}This module adds cross-site AJAX support to nginx. Currently only cross-site GET is supported. But cross-site POST will be added in the future.
The cross-site GET is currently implemented as JSONP (or "JSON with padding"). See http://en.wikipedia.org/wiki/JSON#JSONP for more details.
syntax: xss_get on | off
default: xss_get off
context: http, server, location, if location
Enables JSONP support for GET requests.
syntax: xss_callback_arg <name>
default: none
context: http, http, location, if location
Specifies the JavaScript callback function name used in the responses.
For example,
location /foo {
xss_get on;
xss_callback_arg c;
...
}then
GET /foo?c=blahreturns
blah(...);syntax: xss_override_status on | off
default: xss_check_status on
context: http, server, location, if location
Specifies whether to override 30x, 40x and 50x status to 200 when the response is actually being processed.
syntax: xss_check_status on | off
default: xss_check_status on
context: http, server, location, if location
By default, ngx_xss only process responses with the status code 200 or 201.
syntax: xss_input_types [mime-type]...
default: xss_input_types application/json
context: http, server, location, if location
Only processes the responses of the specified MIME types.
Example:
xss_input_types application/json text/plain;Use the "info" error log level (or lower) to get more diagnostics when things go wrong.
You're recommended to install this module (as well as the Nginx core and many other goodies) via the OpenResty bundle. See the detailed instructions for downloading and installing OpenResty into your system. This is the easiest and most safe way to set things up.
Alternatively, you can install this module manually with the Nginx source:
Grab the nginx source code from nginx.org, for example, the version 1.13.6 (see nginx compatibility), and then build the source with this module:
$ wget 'http://nginx.org/download/nginx-1.13.6.tar.gz'
$ tar -xzvf nginx-1.13.6.tar.gz
$ cd nginx-1.13.6/
# Here we assume you would install you nginx under /opt/nginx/.
$ ./configure --prefix=/opt/nginx \
--add-module=/path/to/rds-json-nginx-module
$ make -j2
$ make installDownload the latest version of the release tarball of this module from xss-nginx-module file list.
Also, this module is included and enabled by default in the OpenResty bundle.
The following versions of Nginx should work with this module:
Earlier versions of Nginx like 0.6.x and 0.5.x will not work.
If you find that any particular version of Nginx above 0.7.30 does not work with this module, please consider reporting a bug.
Yichun "agentzh" Zhang (章亦春) <agentzh@gmail@com>
The implementation of the builtin connection pool has borrowed a lot of code from Maxim Dounin's upstream_keepalive module. This part of code is copyrighted by Maxim Dounin.
This module is licenced under the BSD license.
Copyright (C) 2009-2018 by Yichun "agentzh" Zhang (章亦春) <agentzh@gmail.com> OpenResty Inc.
All rights reserved.
Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.