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                 info( t('Logged out.') . EOL);
  28                 goaway(z_root());
  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(z_root());
  49                 }
  50
  51                 $r = q("SELECT `user`.*, `user`.`pubkey` as `upubkey`, `user`.`prvkey` as `uprvkey`
  52                 FROM `user` WHERE `uid` = %d AND `blocked` = 0 AND `account_expired` = 0 AND `verified` = 1 LIMIT 1",
  53                         intval($_SESSION['uid'])
  54                 );
  55
  56                 if(! count($r)) {
  57                         nuke_session();
  58                         goaway(z_root());
  59                 }
  60
  61                 // initialise user environment
  62
  63                 $a->user = $r[0];
  64                 $_SESSION['theme'] = $a->user['theme'];
  65                 $_SESSION['page_flags'] = $a->user['page-flags'];
  66
  67                 $member_since = strtotime($a->user['register_date']);
  68                 if(time() < ($member_since + ( 60 * 60 * 24 * 14)))
  69                         $_SESSION['new_member'] = true;
  70                 else
  71                         $_SESSION['new_member'] = false;
  72
  73                 if(strlen($a->user['timezone'])) {
  74                         date_default_timezone_set($a->user['timezone']);
  75                         $a->timezone = $a->user['timezone'];
  76                 }
  77
  78                 $_SESSION['my_url'] = $a->get_baseurl() . '/profile/' . $a->user['nickname'];
  79
  80                 $r = q("SELECT `uid`,`username` FROM `user` WHERE `password` = '%s' AND `email` = '%s'",
  81                         dbesc($a->user['password']),
  82                         dbesc($a->user['email'])
  83                 );
  84                 if(count($r))
  85                         $a->identities = $r;
  86
  87                 $r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `self` = 1 LIMIT 1",
  88                         intval($_SESSION['uid']));
  89                 if(count($r)) {
  90                         $a->contact = $r[0];
  91                         $a->cid = $r[0]['id'];
  92                         $_SESSION['cid'] = $a->cid;
  93
  94                 }
  95                 header('X-Account-Management-Status: active; name="' . $a->user['username'] . '"; id="' . $a->user['nickname'] .'"');
  96         }
  97 }
  98 else {
  99
 100         if(isset($_SESSION)) {
 101                 nuke_session();
 102         }
 103
 104         if((x($_POST,'password')) && strlen($_POST['password']))
 105                 $encrypted = hash('whirlpool',trim($_POST['password']));
 106         else {
 107                 if((x($_POST,'openid_url')) && strlen($_POST['openid_url']) ||
 108                    (x($_POST,'username')) && strlen($_POST['username'])) {
 109
 110                         $noid = get_config('system','no_openid');
 111
 112                         $openid_url = trim(  (strlen($_POST['openid_url'])?$_POST['openid_url']:$_POST['username']) );
 113
 114                         // validate_url alters the calling parameter
 115
 116                         $temp_string = $openid_url;
 117
 118                         // if it's an email address or doesn't resolve to a URL, fail.
 119
 120                         if(($noid) || (strpos($temp_string,'@')) || (! validate_url($temp_string))) {
 121                                 $a = get_app();
 122                                 notice( t('Login failed.') . EOL);
 123                                 goaway(z_root());
 124                                 // NOTREACHED
 125                         }
 126
 127                         // Otherwise it's probably an openid.
 128
 129                         require_once('library/openid.php');
 130                         $openid = new LightOpenID;
 131                         $openid->identity = $openid_url;
 132                         $_SESSION['openid'] = $openid_url;
 133                         $a = get_app();
 134                         $openid->returnUrl = $a->get_baseurl() . '/openid';
 135
 136                         $r = q("SELECT `uid` FROM `user` WHERE `openid` = '%s' LIMIT 1",
 137                                 dbesc($openid_url)
 138                         );
 139                         if(count($r)) {
 140                                 // existing account
 141                                 goaway($openid->authUrl());
 142                                 // NOTREACHED
 143                         }
 144                         else {
 145                                 if($a->config['register_policy'] == REGISTER_CLOSED) {
 146                                         $a = get_app();
 147                                         notice( t('Login failed.') . EOL);
 148                                         goaway(z_root());
 149                                         // NOTREACHED
 150                                 }
 151                                 // new account
 152                                 $_SESSION['register'] = 1;
 153                                 $openid->required = array('namePerson/friendly', 'contact/email', 'namePerson');
 154                                 $openid->optional = array('namePerson/first','media/image/aspect11','media/image/default');
 155                                 goaway($openid->authUrl());
 156                                 // NOTREACHED
 157                         }
 158                 }
 159         }
 160         if((x($_POST,'auth-params')) && $_POST['auth-params'] === 'login') {
 161
 162                 $record = null;
 163
 164                 $addon_auth = array(
 165                         'username' => trim($_POST['username']),
 166                         'password' => trim($_POST['password']),
 167                         'authenticated' => 0,
 168                         'user_record' => null
 169                 );
 170
 171                 /**
 172                  *
 173                  * A plugin indicates successful login by setting 'authenticated' to non-zero value and returning a user record
 174                  * Plugins should never set 'authenticated' except to indicate success - as hooks may be chained
 175                  * and later plugins should not interfere with an earlier one that succeeded.
 176                  *
 177                  */
 178
 179                 call_hooks('authenticate', $addon_auth);
 180
 181                 if(($addon_auth['authenticated']) && (count($addon_auth['user_record']))) {
 182                         $record = $addon_auth['user_record'];
 183                 }
 184                 else {
 185
 186                         // process normal login request
 187
 188                         $r = q("SELECT `user`.*, `user`.`pubkey` as `upubkey`, `user`.`prvkey` as `uprvkey`
 189                                 FROM `user` WHERE ( `email` = '%s' OR `nickname` = '%s' )
 190                                 AND `password` = '%s' AND `blocked` = 0 AND `account_expired` = 0 AND `verified` = 1 LIMIT 1",
 191                                 dbesc(trim($_POST['username'])),
 192                                 dbesc(trim($_POST['username'])),
 193                                 dbesc($encrypted)
 194                         );
 195                         if(count($r))
 196                                 $record = $r[0];
 197                 }
 198
 199                 if((! $record) || (! count($record))) {
 200                         logger('authenticate: failed login attempt: ' . trim($_POST['username']));
 201                         notice( t('Login failed.') . EOL );
 202                         goaway(z_root());
 203                 }
 204
 205                 $_SESSION['uid'] = $record['uid'];
 206                 $_SESSION['theme'] = $record['theme'];
 207                 $_SESSION['authenticated'] = 1;
 208                 $_SESSION['page_flags'] = $record['page-flags'];
 209                 $_SESSION['my_url'] = $a->get_baseurl() . '/profile/' . $record['nickname'];
 210                 $_SESSION['addr'] = $_SERVER['REMOTE_ADDR'];
 211
 212                 $a->user = $record;
 213
 214                 if($a->user['login_date'] === '0000-00-00 00:00:00') {
 215                         $_SESSION['return_url'] = 'profile_photo/new';
 216                         $a->module = 'profile_photo';
 217                         info( t("Welcome ") . $a->user['username'] . EOL);
 218                         info( t('Please upload a profile photo.') . EOL);
 219                 }
 220                 else
 221                         info( t("Welcome back ") . $a->user['username'] . EOL);
 222
 223
 224                 $member_since = strtotime($a->user['register_date']);
 225                 if(time() < ($member_since + ( 60 * 60 * 24 * 14)))
 226                         $_SESSION['new_member'] = true;
 227                 else
 228                         $_SESSION['new_member'] = false;
 229
 230                 if(strlen($a->user['timezone'])) {
 231                         date_default_timezone_set($a->user['timezone']);
 232                         $a->timezone = $a->user['timezone'];
 233                 }
 234
 235                 $r = q("SELECT `uid`,`username` FROM `user` WHERE `password` = '%s' AND `email` = '%s'",
 236                         dbesc($a->user['password']),
 237                         dbesc($a->user['email'])
 238                 );
 239                 if(count($r))
 240                         $a->identities = $r;
 241
 242
 243                 $r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `self` = 1 LIMIT 1",
 244                         intval($_SESSION['uid']));
 245                 if(count($r)) {
 246                         $a->contact = $r[0];
 247                         $a->cid = $r[0]['id'];
 248                         $_SESSION['cid'] = $a->cid;
 249                 }
 250
 251                 $l = get_language();
 252
 253                 q("UPDATE `user` SET `login_date` = '%s', `language` = '%s' WHERE `uid` = %d LIMIT 1",
 254                         dbesc(datetime_convert()),
 255                         dbesc($l),
 256                         intval($_SESSION['uid'])
 257                 );
 258
 259                 call_hooks('logged_in', $a->user);
 260
 261                 header('X-Account-Management-Status: active; name="' . $a->user['username'] . '"; id="' . $a->user['nickname'] .'"');
 262                 if(($a->module !== 'home') && isset($_SESSION['return_url']))
 263                         goaway($a->get_baseurl() . '/' . $_SESSION['return_url']);
 264         }
 265 }
 266
 267 // Returns an array of group id's this contact is a member of.
 268 // This array will only contain group id's related to the uid of this
 269 // DFRN contact. They are *not* neccessarily unique across the entire site.
 270
 271
 272 if(! function_exists('init_groups_visitor')) {
 273 function init_groups_visitor($contact_id) {
 274         $groups = array();
 275         $r = q("SELECT `gid` FROM `group_member`
 276                 WHERE `contact-id` = %d ",
 277                 intval($contact_id)
 278         );
 279         if(count($r)) {
 280                 foreach($r as $rr)
 281                         $groups[] = $rr['gid'];
 282         }
 283         return $groups;
 284 }}
 285
 286