Viewing file:  Htpasswd.php (2.89 KB) -rw-r--r--
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<?php
/**
* Authentication source for Apache 'htpasswd' files.
*
* @author Dyonisius (Dick) Visser, TERENA.
* @package simpleSAMLphp
* @version $Id$
*/
class sspmod_authcrypt_Auth_Source_Htpasswd extends sspmod_core_Auth_UserPassBase {
/**
* Our users, stored in an array, where each value is "<username>:<passwordhash>".
*/
private $users;
/**
* Constructor for this authentication source.
*
* @param array $info Information about this authentication source.
* @param array $config Configuration.
*/
public function __construct($info, $config) {
assert('is_array($info)');
assert('is_array($config)');
/* Call the parent constructor first, as required by the interface. */
parent::__construct($info, $config);
$this->users = array();
if(!$htpasswd = file_get_contents($config['htpasswd_file'])) {
throw new Exception('Could not read ' . $config['htpasswd_file']);
}
$this->users = explode("\n", trim($htpasswd));
try {
$this->attributes = SimpleSAML_Utilities::parseAttributes($config['static_attributes']);
} catch(Exception $e) {
throw new Exception('Invalid static_attributes in authentication source ' .
$this->authId . ': ' . $e->getMessage());
}
}
/**
* Attempt to log in using the given username and password.
*
* On a successful login, this function should return the username as 'uid' attribute,
* and merged attributes from the configuration file.
* On failure, it should throw an exception. A SimpleSAML_Error_Error('WRONGUSERPASS')
* should be thrown in case of a wrong username OR a wrong password, to prevent the
* enumeration of usernames.
*
* @param string $username The username the user wrote.
* @param string $password The password the user wrote.
* @return array Associative array with the users attributes.
*/
protected function login($username, $password) {
assert('is_string($username)');
assert('is_string($password)');
foreach($this->users as $userpass) {
$matches = explode(':', $userpass, 2);
if($matches[0] == $username) {
$crypted = $matches[1];
// This is about the only attribute we can add
$attributes = array_merge(array('uid' => array($username)), $this->attributes);
// Traditional crypt(3)
if(crypt($password, $crypted) == $crypted) {
SimpleSAML_Logger::debug('User '. $username . ' authenticated successfully');
return $attributes;
}
// Apache's custom MD5
if(SimpleSAML_Utils_Crypto::apr1Md5Valid($crypted, $password)) {
SimpleSAML_Logger::debug('User '. $username . ' authenticated successfully');
return $attributes;
}
// SHA1 or plain-text
if(SimpleSAML_Utils_Crypto::pwValid($crypted, $password)) {
SimpleSAML_Logger::debug('User '. $username . ' authenticated successfully');
return $attributes;
}
throw new SimpleSAML_Error_Error('WRONGUSERPASS');
}
}
throw new SimpleSAML_Error_Error('WRONGUSERPASS');
}
}
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