mod/openid.php

   1 <?php
   2 /**
   3  * @file mod/openid.php
   4  */
   5
   6 use Friendica\App;
   7 use Friendica\Core\Config;
   8 use Friendica\Core\L10n;
   9 use Friendica\Core\Logger;
  10 use Friendica\Core\Session;
  11 use Friendica\Database\DBA;
  12 use Friendica\Util\Strings;
  13
  14 function openid_content(App $a) {
  15
  16         if (Config::get('system','no_openid')) {
  17                 $a->internalRedirect();
  18         }
  19
  20         Logger::log('mod_openid ' . print_r($_REQUEST,true), Logger::DATA);
  21
  22         if (!empty($_GET['openid_mode']) && !empty($_SESSION['openid'])) {
  23
  24                 $openid = new LightOpenID($a->getHostName());
  25
  26                 if ($openid->validate()) {
  27                         $authid = $openid->identity;
  28
  29                         if (empty($authid)) {
  30                                 Logger::log(L10n::t('OpenID protocol error. No ID returned.') . EOL);
  31                                 $a->internalRedirect();
  32                         }
  33
  34                         // NOTE: we search both for normalised and non-normalised form of $authid
  35                         //       because the normalization step was removed from setting
  36                         //       mod/settings.php in 8367cad so it might have left mixed
  37                         //       records in the user table
  38                         //
  39                         $condition = ['blocked' => false, 'account_expired' => false, 'account_removed' => false, 'verified' => true,
  40                                 'openid' => [$authid, Strings::normaliseOpenID($authid)]];
  41                         $user  = DBA::selectFirst('user', [], $condition);
  42                         if (DBA::isResult($user)) {
  43
  44                                 // successful OpenID login
  45
  46                                 unset($_SESSION['openid']);
  47
  48                                 Session::setAuthenticatedForUser($a, $user, true, true);
  49
  50                                 // just in case there was no return url set
  51                                 // and we fell through
  52
  53                                 $a->internalRedirect();
  54                         }
  55
  56                         // Successful OpenID login - but we can't match it to an existing account.
  57                         // New registration?
  58
  59                         if (intval(Config::get('config', 'register_policy')) === \Friendica\Module\Register::CLOSED) {
  60                                 notice(L10n::t('Account not found and OpenID registration is not permitted on this site.') . EOL);
  61                                 $a->internalRedirect();
  62                         }
  63
  64                         unset($_SESSION['register']);
  65                         $args = '';
  66                         $attr = $openid->getAttributes();
  67                         if (is_array($attr) && count($attr)) {
  68                                 foreach ($attr as $k => $v) {
  69                                         if ($k === 'namePerson/friendly') {
  70                                                 $nick = Strings::escapeTags(trim($v));
  71                                         }
  72                                         if ($k === 'namePerson/first') {
  73                                                 $first = Strings::escapeTags(trim($v));
  74                                         }
  75                                         if ($k === 'namePerson') {
  76                                                 $args .= '&username=' . urlencode(Strings::escapeTags(trim($v)));
  77                                         }
  78                                         if ($k === 'contact/email') {
  79                                                 $args .= '&email=' . urlencode(Strings::escapeTags(trim($v)));
  80                                         }
  81                                         if ($k === 'media/image/aspect11') {
  82                                                 $photosq = bin2hex(trim($v));
  83                                         }
  84                                         if ($k === 'media/image/default') {
  85                                                 $photo = bin2hex(trim($v));
  86                                         }
  87                                 }
  88                         }
  89                         if (!empty($nick)) {
  90                                 $args .= '&nickname=' . urlencode($nick);
  91                         } elseif (!empty($first)) {
  92                                 $args .= '&nickname=' . urlencode($first);
  93                         }
  94
  95                         if (!empty($photosq)) {
  96                                 $args .= '&photo=' . urlencode($photosq);
  97                         } elseif (!empty($photo)) {
  98                                 $args .= '&photo=' . urlencode($photo);
  99                         }
 100
 101                         $args .= '&openid_url=' . urlencode(Strings::escapeTags(trim($authid)));
 102
 103                         $a->internalRedirect('register?' . $args);
 104
 105                         // NOTREACHED
 106                 }
 107         }
 108         notice(L10n::t('Login failed.') . EOL);
 109         $a->internalRedirect();
 110         // NOTREACHED
 111 }