Http Authentication with PHP not working

Question

I have Plesk Server where PHP is running as a CGI.

    if (!isset($_SERVER['PHP_AUTH_USER'])) {
    header('WWW-Authenticate: Basic realm="My Realm"');
    header('HTTP/1.0 401 Unauthorized');
    echo 'Text to send if user hits Cancel button';
    exit;
} else {
    echo "<p>Hello {$_SERVER['PHP_AUTH_USER']}.</p>";
    echo "<p>You entered {$_SERVER['PHP_AUTH_PW']} as your password.</p>";
}

The above script should prompt the user name and password. (Yes it does) After entering any user/pass it should print them. (No, it always ask for the user/pass)

How to fix it?

Answer 1

I've got this problem too on one of my servers and the following solved it for me. It's apparently due to using CGI. http://www.besthostratings.com/articles/http-auth-php-cgi.html

.htaccess:

RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization},L]

PHP:

list($_SERVER['PHP_AUTH_USER'], $_SERVER['PHP_AUTH_PW']) = explode(':', base64_decode(substr($_SERVER['HTTP_AUTHORIZATION'], 6)));

Answer 2

Here is the file I include before anything in any project that is under development:

<?php

// protecting page of unauthorized access

if (isset($_SERVER['PHP_AUTH_USER']) && isset($_SERVER['PHP_AUTH_PW'])){ 
    $user = $_SERVER['PHP_AUTH_USER'];
    $pass = $_SERVER['PHP_AUTH_PW'];

    if ($user == 'username' && $pass == 'dev'){
        return;
    }
}

header('WWW-Authenticate: Basic realm="Protected zone"');
header('HTTP/1.0 401 Unauthorized');
echo 'Login failed.';
exit;

Just include it in your index.php before anything else.

Answer 3

尝试将beow行添加到.htaccess文件中

SetEnvIf Authorization .+ HTTP_AUTHORIZATION=$0

Answer 4

Did you considered using more standard .htaccess / .htpassword files (if you're using Apache)? http://httpd.apache.org/docs/2.0/howto/auth.html

Here $_SERVER['PHP_AUTH_USER'] looks to be never setted, so it will always display this popup.