include/auth.php

   1 <?php
   2
   3
   4 function nuke_session() {
   5         unset($_SESSION['authenticated']);
   6         unset($_SESSION['uid']);
   7         unset($_SESSION['visitor_id']);
   8         unset($_SESSION['administrator']);
   9         unset($_SESSION['cid']);
  10         unset($_SESSION['theme']);
  11         unset($_SESSION['page_flags']);
  12 }
  13
  14
  15 // login/logout
  16
  17
  18
  19
  20 if((isset($_SESSION)) && (x($_SESSION,'authenticated')) && ((! (x($_POST,'auth-params'))) || ($_POST['auth-params'] !== 'login'))) {
  21
  22         if(((x($_POST,'auth-params')) && ($_POST['auth-params'] === 'logout')) || ($a->module === 'logout')) {
  23
  24                 // process logout request
  25
  26                 nuke_session();
  27                 notice( t('Logged out.') . EOL);
  28                 goaway($a->get_baseurl());
  29         }
  30
  31         if(x($_SESSION,'visitor_id') && (! x($_SESSION,'uid'))) {
  32                 $r = q("SELECT * FROM `contact` WHERE `id` = %d LIMIT 1",
  33                         intval($_SESSION['visitor_id'])
  34                 );
  35                 if(count($r)) {
  36                         $a->contact = $r[0];
  37                 }
  38         }
  39
  40         if(x($_SESSION,'uid')) {
  41
  42                 // already logged in user returning
  43
  44                 $check = get_config('system','paranoia');
  45                 // extra paranoia - if the IP changed, log them out
  46                 if($check && ($_SESSION['addr'] != $_SERVER['REMOTE_ADDR'])) {
  47                         nuke_session();
  48                         goaway($a->get_baseurl());
  49                 }
  50
  51                 $r = q("SELECT * FROM `user` WHERE `uid` = %d LIMIT 1",
  52                         intval($_SESSION['uid'])
  53                 );
  54
  55                 if(! count($r)) {
  56                         nuke_session();
  57                         goaway($a->get_baseurl());
  58                 }
  59
  60                 // initialise user environment
  61
  62                 $a->user = $r[0];
  63                 $_SESSION['theme'] = $a->user['theme'];
  64                 $_SESSION['page_flags'] = $a->user['page-flags'];
  65
  66                 if(strlen($a->user['timezone'])) {
  67                         date_default_timezone_set($a->user['timezone']);
  68                         $a->timezone = $a->user['timezone'];
  69                 }
  70
  71                 $_SESSION['my_url'] = $a->get_baseurl() . '/profile/' . $a->user['nickname'];
  72
  73                 $r = q("SELECT `uid`,`username` FROM `user` WHERE `password` = '%s' AND `email` = '%s'",
  74                         dbesc($a->user['password']),
  75                         dbesc($a->user['email'])
  76                 );
  77                 if(count($r))
  78                         $a->identities = $r;
  79
  80                 $r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `self` = 1 LIMIT 1",
  81                         intval($_SESSION['uid']));
  82                 if(count($r)) {
  83                         $a->contact = $r[0];
  84                         $a->cid = $r[0]['id'];
  85                         $_SESSION['cid'] = $a->cid;
  86
  87                 }
  88                 header('X-Account-Management-Status: active; name="' . $a->user['username'] . '"; id="' . $a->user['nickname'] .'"');
  89         }
  90 }
  91 else {
  92
  93         if(isset($_SESSION)) {
  94                 nuke_session();
  95         }
  96
  97         if((x($_POST,'password')) && strlen($_POST['password']))
  98                 $encrypted = hash('whirlpool',trim($_POST['password']));
  99         else {
 100                 if((x($_POST,'openid_url')) && strlen($_POST['openid_url'])) {
 101
 102                         $noid = get_config('system','no_openid');
 103
 104                         $openid_url = trim($_POST['openid_url']);
 105
 106                         // validate_url alters the calling parameter
 107
 108                         $temp_string = $openid_url;
 109
 110                         // if it's an email address or doesn't resolve to a URL, fail.
 111
 112                         if(($noid) || (strpos($temp_string,'@')) || (! validate_url($temp_string))) {
 113                                 $a = get_app();
 114                                 notice( t('Login failed.') . EOL);
 115                                 goaway($a->get_baseurl());
 116                                 // NOTREACHED
 117                         }
 118
 119                         // Otherwise it's probably an openid.
 120
 121                         require_once('library/openid.php');
 122                         $openid = new LightOpenID;
 123                         $openid->identity = $openid_url;
 124                         $_SESSION['openid'] = $openid_url;
 125                         $a = get_app();
 126                         $openid->returnUrl = $a->get_baseurl() . '/openid';
 127
 128                         $r = q("SELECT `uid` FROM `user` WHERE `openid` = '%s' LIMIT 1",
 129                                 dbesc($openid_url)
 130                         );
 131                         if(count($r)) {
 132                                 // existing account
 133                                 goaway($openid->authUrl());
 134                                 // NOTREACHED
 135                         }
 136                         else {
 137                                 if($a->config['register_policy'] == REGISTER_CLOSED) {
 138                                         $a = get_app();
 139                                         notice( t('Login failed.') . EOL);
 140                                         goaway($a->get_baseurl());
 141                                         // NOTREACHED
 142                                 }
 143                                 // new account
 144                                 $_SESSION['register'] = 1;
 145                                 $openid->required = array('namePerson/friendly', 'contact/email', 'namePerson');
 146                                 $openid->optional = array('namePerson/first','media/image/aspect11','media/image/default');
 147                                 goaway($openid->authUrl());
 148                                 // NOTREACHED
 149                         }
 150                 }
 151         }
 152         if((x($_POST,'auth-params')) && $_POST['auth-params'] === 'login') {
 153
 154                 $record = null;
 155
 156                 $addon_auth = array(
 157                         'username' => trim($_POST['openid_url']),
 158                         'password' => trim($_POST['password']),
 159                         'authenticated' => 0,
 160                         'user_record' => null
 161                 );
 162
 163                 /**
 164                  *
 165                  * A plugin indicates successful login by setting 'authenticated' to non-zero value and returning a user record
 166                  * Plugins should never set 'authenticated' except to indicate success - as hooks may be chained
 167                  * and later plugins should not interfere with an earlier one that succeeded.
 168                  *
 169                  */
 170
 171                 call_hooks('authenticate', $addon_auth);
 172
 173                 if(($addon_auth['authenticated']) && (count($addon_auth['user_record']))) {
 174                         $record = $addon_auth['user_record'];
 175                 }
 176                 else {
 177
 178                         // process normal login request
 179
 180                         $r = q("SELECT * FROM `user` WHERE ( `email` = '%s' OR `nickname` = '%s' )
 181                                 AND `password` = '%s' AND `blocked` = 0 AND `verified` = 1 LIMIT 1",
 182                                 dbesc(trim($_POST['openid_url'])),
 183                                 dbesc(trim($_POST['openid_url'])),
 184                                 dbesc($encrypted)
 185                         );
 186                         if(count($r))
 187                                 $record = $r[0];
 188                 }
 189
 190                 if((! $record) || (! count($record))) {
 191                         logger('authenticate: failed login attempt: ' . trim($_POST['openid_url']));
 192                         notice( t('Login failed.') . EOL );
 193                         goaway($a->get_baseurl());
 194                 }
 195
 196                 $_SESSION['uid'] = $record['uid'];
 197                 $_SESSION['theme'] = $record['theme'];
 198                 $_SESSION['authenticated'] = 1;
 199                 $_SESSION['page_flags'] = $record['page-flags'];
 200                 $_SESSION['my_url'] = $a->get_baseurl() . '/profile/' . $record['nickname'];
 201                 $_SESSION['addr'] = $_SERVER['REMOTE_ADDR'];
 202
 203                 $a->user = $record;
 204
 205                 if($a->user['login_date'] === '0000-00-00 00:00:00') {
 206                         $_SESSION['return_url'] = 'profile_photo/new';
 207                         $a->module = 'profile_photo';
 208                         notice( t("Welcome ") . $a->user['username'] . EOL);
 209                         notice( t('Please upload a profile photo.') . EOL);
 210                 }
 211                 else
 212                         notice( t("Welcome back ") . $a->user['username'] . EOL);
 213
 214                 if(strlen($a->user['timezone'])) {
 215                         date_default_timezone_set($a->user['timezone']);
 216                         $a->timezone = $a->user['timezone'];
 217                 }
 218
 219                 $r = q("SELECT `uid`,`username` FROM `user` WHERE `password` = '%s' AND `email` = '%s'",
 220                         dbesc($a->user['password']),
 221                         dbesc($a->user['email'])
 222                 );
 223                 if(count($r))
 224                         $a->identities = $r;
 225
 226
 227                 $r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `self` = 1 LIMIT 1",
 228                         intval($_SESSION['uid']));
 229                 if(count($r)) {
 230                         $a->contact = $r[0];
 231                         $a->cid = $r[0]['id'];
 232                         $_SESSION['cid'] = $a->cid;
 233                 }
 234
 235
 236                 q("UPDATE `user` SET `login_date` = '%s' WHERE `uid` = %d LIMIT 1",
 237                         dbesc(datetime_convert()),
 238                         intval($_SESSION['uid'])
 239                 );
 240
 241                 call_hooks('logged_in', $a->user);
 242
 243                 header('X-Account-Management-Status: active; name="' . $a->user['username'] . '"; id="' . $a->user['nickname'] .'"');
 244                 if(($a->module !== 'home') && isset($_SESSION['return_url']))
 245                         goaway($a->get_baseurl() . '/' . $_SESSION['return_url']);
 246         }
 247 }
 248
 249 // Returns an array of group id's this contact is a member of.
 250 // This array will only contain group id's related to the uid of this
 251 // DFRN contact. They are *not* neccessarily unique across the entire site.
 252
 253
 254 if(! function_exists('init_groups_visitor')) {
 255 function init_groups_visitor($contact_id) {
 256         $groups = array();
 257         $r = q("SELECT `gid` FROM `group_member`
 258                 WHERE `contact-id` = %d ",
 259                 intval($contact_id)
 260         );
 261         if(count($r)) {
 262                 foreach($r as $rr)
 263                         $groups[] = $rr['gid'];
 264         }
 265         return $groups;
 266 }}
 267
 268