C:/xampp/htdocs/moodle/lib/simpletestlib/authentication.php

Go to the documentation of this file.

<?php
require_once(dirname(__FILE__) . '/http.php');

class SimpleRealm {
    var $_type;
    var $_root;
    var $_username;
    var $_password;
    
    function SimpleRealm($type, $url) {
        $this->_type = $type;
        $this->_root = $url->getBasePath();
        $this->_username = false;
        $this->_password = false;
    }
    
    function stretch($url) {
        $this->_root = $this->_getCommonPath($this->_root, $url->getPath());
    }
    
    function _getCommonPath($first, $second) {
        $first = explode('/', $first);
        $second = explode('/', $second);
        for ($i = 0; $i < min(count($first), count($second)); $i++) {
            if ($first[$i] != $second[$i]) {
                return implode('/', array_slice($first, 0, $i)) . '/';
            }
        }
        return implode('/', $first) . '/';
    }
    
    function setIdentity($username, $password) {
        $this->_username = $username;
        $this->_password = $password;
    }
    
    function getUsername() {
        return $this->_username;
    }
    
    function getPassword() {
        return $this->_password;
    }
    
    function isWithin($url) {
        if ($this->_isIn($this->_root, $url->getBasePath())) {
            return true;
        }
        if ($this->_isIn($this->_root, $url->getBasePath() . $url->getPage() . '/')) {
            return true;
        }
        return false;
    }
    
    function _isIn($part, $whole) {
        return strpos($whole, $part) === 0;
    }
}

class SimpleAuthenticator {
    var $_realms;
    
    function SimpleAuthenticator() {
        $this->restartSession();
    }
    
    function restartSession() {
        $this->_realms = array();
    }
    
    function addRealm($url, $type, $realm) {
        $this->_realms[$url->getHost()][$realm] = new SimpleRealm($type, $url);
    }
    
    function setIdentityForRealm($host, $realm, $username, $password) {
        if (isset($this->_realms[$host][$realm])) {
            $this->_realms[$host][$realm]->setIdentity($username, $password);
        }
    }
    
    function _findRealmFromUrl($url) {
        if (! isset($this->_realms[$url->getHost()])) {
            return false;
        }
        foreach ($this->_realms[$url->getHost()] as $name => $realm) {
            if ($realm->isWithin($url)) {
                return $realm;
            }
        }
        return false;
    }
    
    function addHeaders(&$request, $url) {
        if ($url->getUsername() && $url->getPassword()) {
            $username = $url->getUsername();
            $password = $url->getPassword();
        } elseif ($realm = $this->_findRealmFromUrl($url)) {
            $username = $realm->getUsername();
            $password = $realm->getPassword();
        } else {
            return;
        }
        $this->addBasicHeaders($request, $username, $password);
    }
    
    function addBasicHeaders(&$request, $username, $password) {
        if ($username && $password) {
            $request->addHeaderLine(
                    'Authorization: Basic ' . base64_encode("$username:$password"));
        }
    }
}
?>