97caab0e7a
@dward on GitHub reported an issue with a URL like http://foo.bar/test.php?blah=test.php/foo where we would end up trying to run the script test.php?blah=test.php In the PHP module the format 'file.php/' is treated as a special case in nxt_php_dynamic_request() where we check the _path_ part of the url for the string '.php/'. The problem is that the path actually also contains the query string, thus we were finding 'test.php/' in the above URL and treating that whole path as the script to run. The fix is simple, replace the strstr(3) with a memmem(3), where we can limit the amount of path we use for the check. The trick here and what is not obvious from the code is that while path.start points to the whole path including the query string, path.length only contains the length of the _path_ part. NOTE: memmem(3) is a GNU extension and is neither specified by POSIX or ISO C, however it is available on a number of other systems, including: FreeBSD, OpenBSD, NetBSD, illumos, and macOS. If it comes to it we can implement a simple alternative for systems which lack memmem(3). This also adds a test case (provided by @dward) to cover this. Closes: <https://github.com/nginx/unit/issues/781> Cc: Andrei Zeliankou <zelenkov@nginx.com> Reviewed-by: Alejandro Colomar <alx@nginx.com> Reviewed-by: Andrei Zeliankou <zelenkov@nginx.com> [test] Signed-off-by: Andrew Clayton <a.clayton@nginx.com> |
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version |
NGINX Unit
Universal Web App Server
NGINX Unit is a lightweight and versatile open-source server that has three core capabilities:
- it is an HTTP reverse proxy,
- a web server for static media assets,
- and an application server that runs code in seven languages.
We are building a universal tool that compresses several layers of the modern application stack into a potent, coherent solution with a focus on performance, low latency, and scalability. It is intended as a building block for any web architecture regardless of its complexity, from enterprise-scale deployments to your pet's homepage.
Unit's native RESTful JSON API enables dynamic updates with zero interruptions and flexible configuration, while its out-of-the-box productivity reliably scales to production-grade workloads. We achieve that with a complex, asynchronous, multithreading architecture comprising multiple processes to ensure security and robustness while getting the most out of today's computing platforms.
Quick Installation
macOS
$ brew install nginx/unit/unit
For details and available language packages, see the docs.
Docker
$ docker pull docker.io/nginx/unit
For a description of image tags, see the docs.
Amazon Linux, Fedora, RedHat
$ wget https://raw.githubusercontent.com/nginx/unit/master/tools/setup-unit && chmod +x setup-unit
# ./setup-unit repo-config && yum install unit
# ./setup-unit welcome
For details and available language packages, see the docs.
Debian, Ubuntu
$ wget https://raw.githubusercontent.com/nginx/unit/master/tools/setup-unit && chmod +x setup-unit
# ./setup-unit repo-config && apt install unit
# ./setup-unit welcome
For details and available language packages, see the docs.
Running a Hello World App
Suppose you saved a PHP script as /www/helloworld/index.php
:
<?php echo "Hello, PHP on Unit!"; ?>
To run it on Unit with the unit-php
module installed, first set up an
application object. Let's store our first config snippet in a file called
config.json
:
{
"helloworld": {
"type": "php",
"root": "/www/helloworld/"
}
}
Saving it as a file isn't necessary, but can come in handy with larger objects.
Now, PUT
it into the /config/applications
section of Unit's control API,
usually available by default via a Unix domain socket:
# curl -X PUT --data-binary @config.json --unix-socket \
/path/to/control.unit.sock http://localhost/config/applications
{
"success": "Reconfiguration done."
}
Next, reference the app from a listener object in the /config/listeners
section of the API. This time, we pass the config snippet straight from the
command line:
# curl -X PUT -d '{"127.0.0.1:8000": {"pass": "applications/helloworld"}}' \
--unix-socket /path/to/control.unit.sock http://localhost/config/listeners
{
"success": "Reconfiguration done."
}
Now Unit accepts requests at the specified IP and port, passing them to the application process. Your app works!
$ curl 127.0.0.1:8080
Hello, PHP on Unit!
Finally, query the entire /config
section of the control API:
# curl --unix-socket /path/to/control.unit.sock http://localhost/config/
Unit's output should contain both snippets, neatly organized:
{
"listeners": {
"127.0.0.1:8080": {
"pass": "applications/helloworld"
}
},
"applications": {
"helloworld": {
"type": "php",
"root": "/www/helloworld/"
}
}
}
For full details of configuration management, see the docs.
Community
-
The go-to place to start asking questions and share your thoughts is our Slack channel.
-
Our GitHub issues page offers space for a more technical discussion at your own pace.
-
The project map on GitHub sheds some light on our current work and plans for the future.
-
Our official website may provide answers not easily found otherwise.
-
Get involved with the project by contributing! See the contributing guide for details.
-
To reach the team directly, subscribe to the mailing list.
-
For security issues, email us, mentioning NGINX Unit in the subject and following the CVSS v3.1 spec.