Nginx "404 Not Found" Error after POST action to "$PORTAL_ACTION$"

[emad]

I have 3 files to handle users registration and login in my Captive Portal.

• index.php: which detect if the user registered or not (if no it redirect the user to registration.php file / if yes it redirect the user to login.php file)
  plus it has a form that POSTing username and password

<form class="login-form" method="post" action="login.php">
<input name="user" type="text" class="form-input" placeholder="Username" required>
<input name="pass" type="password" class="form-input" placeholder="password" required>
<input name="accept" class="form-button" type="submit" value="Continue">

• registration.php: which handle user registration.

• login.php: which has the actual login form required by pfsense CP

if ($_SERVER['REQUEST_METHOD'] == 'POST') {
        $identity_username = $_POST["user"];
        $identity_password = $_POST["pass"];
?>
    <form method="post" action="$PORTAL_ACTION$">
        <input name="auth_user" type="text" value="<?php echo $identity_username ?>">
        <input name="auth_pass" type="password" value="<?php echo $identity_password ?>">
        <input name="redirurl" type="hidden" value="$PORTAL_REDIRURL$">
        <input name="zone" type="hidden" value="$PORTAL_ZONE$">
        <input name="accept" type="submit" value="Continue">
    </form>

I write username/password in index.php form and click submit then in the next page which is http://<SERVER_IP>:8002/login.php I click Continue on the pre-filled form, I got 404 Not Found Error from Nginx and the URL be like http://<SERVER_IP>:8002/$PORTAL_ACTION$ I expect that CP will authenticate the username/password against FreeRadius but it's not the case as you see.
So, do I miss knowledge with CP behavior or should I modify something?

[Gertjan]

Hi,

@emad said in Nginx "404 Not Found" Error after POST action to "$PORTAL_ACTION%2quot;:

So, do I miss knowledge with CP behavior or should I modify something?

You might as well check (== read and understand what happens when and why etc) this file /usr/local/captiveportal/index.php
It's the file that's get 'executed' when a users is redirected that the portal login interface.
Read that file carefully - and also check this one : /etc/inc/captiveportal.inc which contains all the functions.

For instance, you'll find why/where/when a string like $PORTAL_ACTION$ is replaced by the correct URL before getting send to the client.
Throwing $PORTAL_ACTION$ at the client's web browser who throws it back to the captive portal web server will produce 404 errors.

[chinraam]

@Gertjan
Hi, Im also facing the same issue. Can you please guide or let me know how to overcome?

[Gertjan]

@chinraam said in Nginx "404 Not Found" Error after POST action to "$PORTAL_ACTION%2quot;:

Can you please guide or let me know how to overcome?

I'm not modifying or editing any of the pfSense PHP files. So I have no issues neither errors.

I can't do "self registration" as I'm not allowed (and not want to, neither maintain) ask for any private info like phone numbers or email addresses.