Php http authentication

// Check auth:
if ($_SERVER['PHP_AUTH_USER']){
	echo "Authorized";
} else {
    header('HTTP/1.1 401 Unauthorized');
	echo "Unauthorized";
}

Php authentication

<?php
$realm = 'Restricted area';

//user => password
$users = array('admin' => 'mypass', 'guest' => 'guest');


if (empty($_SERVER['PHP_AUTH_DIGEST'])) {
    header('HTTP/1.1 401 Unauthorized');
    header('WWW-Authenticate: Digest realm="'.$realm.
           '",qop="auth",nonce="'.uniqid().'",opaque="'.md5($realm).'"');

    die('Text to send if user hits Cancel button');
}


// analyze the PHP_AUTH_DIGEST variable
if (!($data = http_digest_parse($_SERVER['PHP_AUTH_DIGEST'])) ||
    !isset($users[$data['username']]))
    die('Wrong Credentials!');


// generate the valid response
$A1 = md5($data['username'] . ':' . $realm . ':' . $users[$data['username']]);
$A2 = md5($_SERVER['REQUEST_METHOD'].':'.$data['uri']);
$valid_response = md5($A1.':'.$data['nonce'].':'.$data['nc'].':'.$data['cnonce'].':'.$data['qop'].':'.$A2);

if ($data['response'] != $valid_response)
    die('Wrong Credentials!');

// ok, valid username & password
echo 'You are logged in as: ' . $data['username'];


// function to parse the http auth header
function http_digest_parse($txt)
{
    // protect against missing data
    $needed_parts = array('nonce'=>1, 'nc'=>1, 'cnonce'=>1, 'qop'=>1, 'username'=>1, 'uri'=>1, 'response'=>1);
    $data = array();
    $keys = implode('|', array_keys($needed_parts));

    preg_match_all('@(' . $keys . ')=(?:([\'"])([^\2]+?)\2|([^\s,]+))@', $txt, $matches, PREG_SET_ORDER);

    foreach ($matches as $m) {
        $data[$m[1]] = $m[3] ? $m[3] : $m[4];
        unset($needed_parts[$m[1]]);
    }

    return $needed_parts ? false : $data;
}
?>

Source: php.net

Similar codes

1 vote211 views3 answers
Php DateTime comparation
PHP
0 vote161 views1 answer
Make model controller in single command
PHP
1 vote240 views1 answer
Import data from csv to db php
PHP
0 vote203 views1 answer
Amazon linux 2 php.ini changes not working
PHP
1 vote245 views1 answer
Laravel artisan progress bar
PHP Laravel
0 vote304 views3 answers
Email or phone required in laravel
PHP Laravel
8 votes201 views3 answers
Magento 2.4.3 how to log
PHP
3 votes197 views2 answers
Insert into laravel 8
PHP Laravel
3 votes166 views6 answers
Php preg_match
PHP
0 vote189 views1 answer
Connect another database in wordpress
PHP Wordpress