CODEWITHSUNDEEP
postnginxlogging
Rishabh
Rishabh

Reputation: 1205

Logging POST data in NGINX and avoiding unnecessary parameters

I want to log POST data in NGINX and am using $request_body to do the same.

But there are POST fields that I don't want to log (like password, email etc). Is it possible to parse the post data OR asynchronously send data to a PHP/RUBY or any other script so that i can parse the POST data there ?

Upvotes: 1

Views: 2029

Answers (2)

Rishabh
Rishabh

Reputation: 1205

I achieved this by using Nginx LUA module. and then by calling ngx.req.get_post_args() in the lua script, i was able to get the post content in the form of a table (LUA's arrays). Hence parsing this in lua itself removing unnecessary parameters and logging it solved this issue.

Upvotes: 1

Sergei Lomakov
Sergei Lomakov

Reputation: 2061

It's not possible to access post parameters directly with default modules, but you could try to make little hack , to achieve this. This is the example:

location /forPost { 
    try_files /logger.php $uri;
}

The script should always return 404 status, this is exampe:

<?php
   if (isset($_POST['data']) ) {
       logger($_POST['data']);
   }
   header($_SERVER["SERVER_PROTOCOL"]." 404 Not Found");
   header("Status: 404 Not Found")
   die();
?>

Upvotes: 1

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