class.xorg.auth.php

   1 <?php
   2
   3 if (!defined('DC_BLOG_ID')) {
   4   define('DC_BLOG_ID', $_SERVER['DC_BLOG_ID']);
   5 }
   6
   7 class xorgAuth extends dcAuth {
   8   public $xorg_infos = array('forlife' => null,
   9                              'prenom' => null,
  10                              'nom' => null,
  11                              'grpauth' => null,
  12                              'perms' => null);
  13   static public function behavior_coreBlogConstruct(&$blog) {
  14     global $core;
  15     $core->auth->sudo(array($core->auth, 'updateUserPerms'), $blog);
  16   }
  17
  18   public function __construct(&$core) {
  19     parent::__construct($core);
  20     $core->addBehavior('coreBlogConstruct', array('xorgAuth', 'behavior_coreBlogConstruct'));
  21   }
  22
  23   public function buildFromSession() {
  24     global $core;
  25     @header('Last-Modified:');
  26     if (!isset($core) || !isset($core->session)) {
  27       return;
  28     }
  29     if (!session_id()) {
  30       $core->session->start();
  31     }
  32     $_SESSION['sess_blog_id'] = $_SERVER['DC_BLOG_ID'];
  33     $user = @$_SESSION['auth-xorg'];
  34     if ($user && is_null($this->xorg_infos['forlife'])) {
  35       foreach ($this->xorg_infos as $key => $val) {
  36         $this->xorg_infos[$key] = $_SESSION['auth-xorg-' . $key];
  37       }
  38       $this->user_id = $user;
  39       $this->user_admin = ($_SESSION['auth-xorg-perms'] == 'admin');
  40       parent::checkUser($this->user_id);
  41       $core->getUserBlogs();
  42       $this->setCommentCookie();
  43     }
  44   }
  45
  46   private function setCommentCookie() {
  47     if (!isset($_COOKIE['comment_info_xorg']) || $_COOKIE['comment_info_xorg'] != $this->user_id) {
  48       $cookie = $this->getInfo('user_displayname') . "\n" . $this->getInfo('user_email') . "\n" . $this->getInfo('user_url');
  49       setcookie('comment_info_xorg', $this->user_id, time() + 30 * 86400, '/');
  50       setrawcookie('comment_info', rawurlencode($cookie), time() + 30 * 86400, '/');
  51     }
  52   }
  53
  54   public function createUser() {
  55     global $core;
  56     if (!$core->userExists($_SESSION['auth-xorg'])) {
  57       $cur = new cursor($this->con, 'dc_user');
  58       $cur->user_id = $_SESSION['auth-xorg'];
  59       $cur->user_pwd = md5(rand());
  60       $cur->user_super = ($_SESSION['auth-xorg-perms'] == 'admin') ? '1' : '0';
  61       $cur->user_lang = 'fr';
  62       $cur->user_name = $_SESSION['auth-xorg-nom'];
  63       $cur->user_firstname = $_SESSION['auth-xorg-prenom'];
  64       $cur->user_displayname = $cur->user_firstname . ' ' . $cur->user_name;
  65       $cur->user_email = $_SESSION['auth-xorg'] . '@polytechnique.org';
  66       $cur->user_url = 'https://www.polytechnique.org/profile/' . $_SESSION['auth-xorg'];
  67       $defaults = $core->userDefaults();
  68       $defaults['post_xorg_perms'] = 'public';
  69       $cur->user_options = $defaults;
  70       $cur->user_lang = 'fr';
  71       $cur->user_tz = 'Europe/Paris';
  72       $cur->user_default_blog = $_SERVER['DC_BLOG_ID'];
  73       $core->addUser($cur);
  74     }
  75   }
  76
  77   public function updateUserPerms(&$blog) {
  78     global $core;
  79     $this->buildFromSession();
  80     if (!isset($_SESSION['auth-xorg'])) {
  81       return;
  82     }
  83     $type = $blog->settings->get('xorg_blog_type');
  84     $owner = $blog->settings->get('xorg_blog_owner');
  85     $level = $this->xorg_infos['grpauth'];
  86     $rec = $core->getUser($this->user_id);
  87     $wasAdmin = $rec->f('user_super');
  88     $isAdmin = $this->xorg_infos['perms'] == 'admin';
  89     if (($wasAdmin && !$isAdmin) || (!$wasAdmin && $isAdmin)) {
  90       $cur = new cursor($this->con, 'dc_user');
  91       $cur->user_super = $isAdmin ? '1' : '0';
  92       $core->updUser($this->user_id, $cur);
  93     }
  94     if ($_SESSION['xorg-group'] != $owner) {
  95       $this->killSession();
  96       return;
  97     }
  98     if (($type == 'group-admin' || $type == 'group-member') && $level == 'admin') {
  99       $perms = array('usage' => true,
 100                      'contentadmin' => true,
 101                      'admin' => true);
 102     } else if ($type == 'group-member' && $level == 'membre') {
 103       $perms = array('usage' => true);
 104     } else if ($type == 'user' && $owner == $this->xorg_infos['forlife']) {
 105       $perms = array('usage' => true,
 106                      'contentadmin' => true,
 107                      'admin' => true);
 108     } else if ($type != 'user') {
 109       $perms = array();
 110     } else {
 111       return;
 112     }
 113     $core->setUserBlogPermissions($_SESSION['auth-xorg'],
 114                                   $blog->id,
 115                                   $perms);
 116   }
 117
 118
 119   /** Xorg SSO API */
 120
 121   public function callXorg($path = null) {
 122     $this->buildFromSession();
 123     if (@$_SESSION['auth-xorg']) {
 124       return true;
 125     }
 126     global $core;
 127     if (!session_id()) {
 128       $core->session->start();
 129     }
 130     if (is_null($path)) {
 131       $path = @$_SERVER['PATH_INFO'];
 132     }
 133     $_SESSION["auth-x-challenge"] = md5(uniqid(rand(), 1));
 134     $_SESSION['xorg-group'] = $core->blog->settings->get('xorg_blog_owner');
 135     $url = "https://www.polytechnique.org/auth-groupex/utf8";
 136     $url .= "?session=" . session_id();
 137     $url .= "&challenge=" . $_SESSION["auth-x-challenge"];
 138     $url .= "&pass=" . md5($_SESSION["auth-x-challenge"] . XORG_AUTH_KEY);
 139     $type = $core->blog->settings->get('xorg_blog_type');
 140     if ($type == 'group-member' || $type == 'group-admin') {
 141       $url .= '&group=' . $core->blog->settings->get('xorg_blog_owner');
 142     }
 143     $url .= "&url=" . urlencode($core->blog->url . "auth/XorgReturn?path=" . $path);
 144     session_write_close();
 145     header("Location: $url");
 146     exit;
 147   }
 148
 149   public function returnXorg() {
 150     if (!isset($_GET['auth'])) {
 151       return false;
 152     }
 153     $params = '';
 154     global $core;
 155     $_COOKIE[DC_SESSION_NAME] = $_GET['PHPSESSID'];
 156     unset($_GET['PHPSESSID']);
 157     if (!session_id()) {
 158       $core->session->start();
 159     }
 160     foreach($this->xorg_infos as $key => $val) {
 161       if(!isset($_GET[$key])) {
 162         return false;
 163       }
 164       $_SESSION['auth-xorg-' . $key] = $_GET[$key];
 165       $params .= $_GET[$key];
 166     }
 167     if (md5('1' . $_SESSION['auth-x-challenge'] . XORG_AUTH_KEY . $params . '1') == $_GET['auth']) {
 168       unset($_GET['auth']);
 169       $_SESSION['sess_user_id'] = $_SESSION['auth-xorg'] = $_GET['forlife'];
 170                   $_SESSION['sess_browser_uid'] = http::browserUID(DC_MASTER_KEY);
 171       $_SESSION['sess_blog_id'] = 'default';
 172       $this->sudo(array($this, 'createUser'));
 173       $path = $_GET['path'];
 174       header('Location: ' . $core->blog->url . $_GET['path']);
 175       exit;
 176     }
 177     unset($_SESSION['auth-xorg']);
 178     unset($_SESSION['sess_user_id']);
 179     unset($_GET['auth']);
 180     echo "Failed !!!";
 181     return false;
 182   }
 183
 184   public function killSession() {
 185     global $core;
 186     if (!session_id()) {
 187       $core->session->start();
 188     }
 189     $core->session->destroy();
 190     if (!isset($core->blog)) {
 191       $blog = $core->getBlog(DC_BLOG_ID);
 192     } else {
 193       $blog = $core->blog;
 194     }
 195     $url = @$blog->url;
 196     if (!$url) {
 197       $url = $blog->f('blog_url');
 198     }
 199
 200     header('Location: ' . $url);
 201     exit;
 202   }
 203
 204
 205   /** Dotclear dcAuth API */
 206
 207   public function checkUser($user_id, $pwd = null, $user_key = null) {
 208     return $this->callXorg();
 209   }
 210
 211   public function check($permissions, $blog_id) {
 212     $this->buildFromSession();
 213     return parent::check($permissions, $blog_id);
 214   }
 215
 216   public function checkPassword($pwd) {
 217     $this->buildFromSession();
 218     return !empty($this->user_id);
 219   }
 220
 221   public function allowPassChange() {
 222     return false;
 223   }
 224
 225   public function userID() {
 226     $this->buildFromSession();
 227     $isadmin = preg_match('@/admin/[^/]+\.php$@i', $_SERVER['SCRIPT_FILENAME']);
 228     if (!$isadmin) {
 229       return null;
 230     }
 231     return parent::userID();
 232   }
 233
 234   public function getPermissions() {
 235     $this->buildFromSession();
 236     return parent::getPermissions();
 237   }
 238
 239   public function getInfo($n) {
 240     $this->buildFromSession();
 241     if ($n == 'xorg_group_member') {
 242       global $core;
 243       if ($core->blog->settings->get('xorg_blog_owner') != $_SESSION['xorg-group']) {
 244         return false;
 245       }
 246       $perm = $this->xorg_infos['grpauth'];
 247       return $this->isSuperAdmin() || $perm == 'admin' || $perm == 'membre';
 248     }
 249     return parent::getInfo($n);
 250   }
 251
 252   public function getOption($n) {
 253     $this->buildFromSession();
 254     return parent::getOption($n);
 255   }
 256
 257   public function getOptions() {
 258     $this->buildFromSession();
 259     return parent::getOptions();
 260   }
 261
 262   public function authForm() {
 263     global $core;
 264     if (!isset($core->blog)) {
 265       $blog = @$core->getBlog(DC_BLOG_ID);
 266     } else {
 267       $blog = $core->blog;
 268     }
 269     $path = @$blog->url;
 270     if (!$path) {
 271       $path = $blog->f('blog_url');
 272     }
 273
 274     return '<fieldset>'.
 275       '<p><a href="' . $path . 'auth/Xorg?path=/admin/index.php">Via Polytechnique.org</a></p>' .
 276       '</fieldset>'.
 277       '<p>'.__('You must accept cookies in order to use the private area.').'</p>';
 278   }
 279 }
 280
 281 ?>