include/auth.php

   1 <?php
   2
   3 // login/logout
   4
   5 if((isset($_SESSION)) && (x($_SESSION,'authenticated')) && ((! (x($_POST,'auth-params'))) || ($_POST['auth-params'] !== 'login'))) {
   6
   7         if(((x($_POST,'auth-params')) && ($_POST['auth-params'] === 'logout')) || ($a->module === 'logout')) {
   8
   9                 // process logout request
  10
  11                 unset($_SESSION['authenticated']);
  12                 unset($_SESSION['uid']);
  13                 unset($_SESSION['visitor_id']);
  14                 unset($_SESSION['administrator']);
  15                 unset($_SESSION['cid']);
  16                 unset($_SESSION['theme']);
  17                 unset($_SESSION['page_flags']);
  18                 notice( t('Logged out.') . EOL);
  19                 goaway($a->get_baseurl());
  20         }
  21
  22         if(x($_SESSION,'uid')) {
  23
  24                 // already logged in user returning
  25
  26                 $r = q("SELECT * FROM `user` WHERE `uid` = %d LIMIT 1",
  27                         intval($_SESSION['uid'])
  28                 );
  29
  30                 if(! count($r)) {
  31                         unset($_SESSION['authenticated']);
  32                         unset($_SESSION['uid']);
  33                         goaway($a->get_baseurl());
  34                 }
  35
  36                 // initialise user environment
  37
  38                 $a->user = $r[0];
  39                 $_SESSION['theme'] = $a->user['theme'];
  40                 $_SESSION['page_flags'] = $a->user['page-flags'];
  41                 if(strlen($a->user['timezone']))
  42                         date_default_timezone_set($a->user['timezone']);
  43
  44                 $_SESSION['my_url'] = $a->get_baseurl() . '/profile/' . $a->user['nickname'];
  45
  46                 $r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `self` = 1 LIMIT 1",
  47                         intval($_SESSION['uid']));
  48                 if(count($r)) {
  49                         $a->contact = $r[0];
  50                         $a->cid = $r[0]['id'];
  51                         $_SESSION['cid'] = $a->cid;
  52
  53                 }
  54                 header('X-Account-Management-Status: active; name="' . $a->user['username'] . '"; id="' . $a->user['nickname'] .'"');
  55         }
  56 }
  57 else {
  58
  59         if(isset($_SESSION)) {
  60                 unset($_SESSION['authenticated']);
  61                 unset($_SESSION['uid']);
  62                 unset($_SESSION['visitor_id']);
  63                 unset($_SESSION['administrator']);
  64                 unset($_SESSION['cid']);
  65                 unset($_SESSION['theme']);
  66                 unset($_SESSION['my_url']);
  67                 unset($_SESSION['page_flags']);
  68         }
  69
  70         if((x($_POST,'password')) && strlen($_POST['password']))
  71                 $encrypted = hash('whirlpool',trim($_POST['password']));
  72         else {
  73                 if((x($_POST,'openid_url')) && strlen($_POST['openid_url'])) {
  74
  75                         $noid = get_config('system','no_openid');
  76
  77                         $openid_url = trim($_POST['openid_url']);
  78
  79                         // validate_url alters the calling parameter
  80
  81                         $temp_string = $openid_url;
  82
  83                         // if it's an email address or doesn't resolve to a URL, fail.
  84
  85                         if(($noid) || (strpos($temp_string,'@')) || (! validate_url($temp_string))) {
  86                                 $a = get_app();
  87                                 notice( t('Login failed.') . EOL);
  88                                 goaway($a->get_baseurl());
  89                                 // NOTREACHED
  90                         }
  91
  92                         // Otherwise it's probably an openid.
  93
  94                         require_once('library/openid.php');
  95                         $openid = new LightOpenID;
  96                         $openid->identity = $openid_url;
  97                         $_SESSION['openid'] = $openid_url;
  98                         $a = get_app();
  99                         $openid->returnUrl = $a->get_baseurl() . '/openid';
 100
 101                         $r = q("SELECT `uid` FROM `user` WHERE `openid` = '%s' LIMIT 1",
 102                                 dbesc($openid_url)
 103                         );
 104                         if(count($r)) {
 105                                 // existing account
 106                                 goaway($openid->authUrl());
 107                                 // NOTREACHED
 108                         }
 109                         else {
 110                                 if($a->config['register_policy'] == REGISTER_CLOSED) {
 111                                         $a = get_app();
 112                                         notice( t('Login failed.') . EOL);
 113                                         goaway($a->get_baseurl());
 114                                         // NOTREACHED
 115                                 }
 116                                 // new account
 117                                 $_SESSION['register'] = 1;
 118                                 $openid->required = array('namePerson/friendly', 'contact/email', 'namePerson');
 119                                 $openid->optional = array('namePerson/first','media/image/aspect11','media/image/default');
 120                                 goaway($openid->authUrl());
 121                                 // NOTREACHED
 122                         }
 123                 }
 124         }
 125         if((x($_POST,'auth-params')) && $_POST['auth-params'] === 'login') {
 126
 127                 // process login request
 128
 129                 $r = q("SELECT * FROM `user`
 130                         WHERE ( `email` = '%s' OR `nickname` = '%s' ) AND `password` = '%s' AND `blocked` = 0 AND `verified` = 1 LIMIT 1",
 131                         dbesc(trim($_POST['openid_url'])),
 132                         dbesc(trim($_POST['openid_url'])),
 133                         dbesc($encrypted));
 134                 if(($r === false) || (! count($r))) {
 135                         notice( t('Login failed.') . EOL );
 136                         goaway($a->get_baseurl());
 137                 }
 138                 $_SESSION['uid'] = $r[0]['uid'];
 139                 $_SESSION['theme'] = $r[0]['theme'];
 140                 $_SESSION['authenticated'] = 1;
 141                 $_SESSION['page_flags'] = $r[0]['page-flags'];
 142                 $_SESSION['my_url'] = $a->get_baseurl() . '/profile/' . $r[0]['nickname'];
 143
 144                 notice( t("Welcome back ") . $r[0]['username'] . EOL);
 145                 $a->user = $r[0];
 146                 if(strlen($a->user['timezone']))
 147                         date_default_timezone_set($a->user['timezone']);
 148
 149                 $r = q("SELECT * FROM `contact` WHERE `uid` = %s AND `self` = 1 LIMIT 1",
 150                         intval($_SESSION['uid']));
 151                 if(count($r)) {
 152                         $a->contact = $r[0];
 153                         $a->cid = $r[0]['id'];
 154                         $_SESSION['cid'] = $a->cid;
 155                 }
 156
 157                 header('X-Account-Management-Status: active; name="' . $a->user['username'] . '"; id="' . $a->user['nickname'] .'"');
 158                 if(($a->module !== 'home') && isset($_SESSION['return_url']))
 159                         goaway($a->get_baseurl() . '/' . $_SESSION['return_url']);
 160         }
 161 }
 162
 163 // Returns an array of group id's this contact is a member of.
 164 // This array will only contain group id's related to the uid of this
 165 // DFRN contact. They are *not* neccessarily unique across the entire site.
 166
 167
 168 if(! function_exists('init_groups_visitor')) {
 169 function init_groups_visitor($contact_id) {
 170         $groups = array();
 171         $r = q("SELECT `gid` FROM `group_member`
 172                 WHERE `contact-id` = %d ",
 173                 intval($contact_id)
 174         );
 175         if(count($r)) {
 176                 foreach($r as $rr)
 177                         $groups[] = $rr['gid'];
 178         }
 179         return $groups;
 180 }}
 181
 182