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($a->get_baseurl());
  29         }
  30
  31         if(x($_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                 $member_since = strtotime($a->user['register_date']);
  67                 if(time() < ($member_since + ( 60 * 60 * 24 * 14)))
  68                         $_SESSION['new_member'] = true;
  69                 else
  70                         $_SESSION['new_member'] = false;
  71
  72                 if(strlen($a->user['timezone'])) {
  73                         date_default_timezone_set($a->user['timezone']);
  74                         $a->timezone = $a->user['timezone'];
  75                 }
  76
  77                 $_SESSION['my_url'] = $a->get_baseurl() . '/profile/' . $a->user['nickname'];
  78
  79                 $r = q("SELECT `uid`,`username` FROM `user` WHERE `password` = '%s' AND `email` = '%s'",
  80                         dbesc($a->user['password']),
  81                         dbesc($a->user['email'])
  82                 );
  83                 if(count($r))
  84                         $a->identities = $r;
  85
  86                 $r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `self` = 1 LIMIT 1",
  87                         intval($_SESSION['uid']));
  88                 if(count($r)) {
  89                         $a->contact = $r[0];
  90                         $a->cid = $r[0]['id'];
  91                         $_SESSION['cid'] = $a->cid;
  92
  93                 }
  94                 header('X-Account-Management-Status: active; name="' . $a->user['username'] . '"; id="' . $a->user['nickname'] .'"');
  95         }
  96 }
  97 else {
  98
  99         if(isset($_SESSION)) {
 100                 nuke_session();
 101         }
 102
 103         if((x($_POST,'password')) && strlen($_POST['password']))
 104                 $encrypted = hash('whirlpool',trim($_POST['password']));
 105         else {
 106                 if((x($_POST,'openid_url')) && strlen($_POST['openid_url'])) {
 107
 108                         $noid = get_config('system','no_openid');
 109
 110                         $openid_url = trim($_POST['openid_url']);
 111
 112                         // validate_url alters the calling parameter
 113
 114                         $temp_string = $openid_url;
 115
 116                         // if it's an email address or doesn't resolve to a URL, fail.
 117
 118                         if(($noid) || (strpos($temp_string,'@')) || (! validate_url($temp_string))) {
 119                                 $a = get_app();
 120                                 notice( t('Login failed.') . EOL);
 121                                 goaway($a->get_baseurl());
 122                                 // NOTREACHED
 123                         }
 124
 125                         // Otherwise it's probably an openid.
 126
 127                         require_once('library/openid.php');
 128                         $openid = new LightOpenID;
 129                         $openid->identity = $openid_url;
 130                         $_SESSION['openid'] = $openid_url;
 131                         $a = get_app();
 132                         $openid->returnUrl = $a->get_baseurl() . '/openid';
 133
 134                         $r = q("SELECT `uid` FROM `user` WHERE `openid` = '%s' LIMIT 1",
 135                                 dbesc($openid_url)
 136                         );
 137                         if(count($r)) {
 138                                 // existing account
 139                                 goaway($openid->authUrl());
 140                                 // NOTREACHED
 141                         }
 142                         else {
 143                                 if($a->config['register_policy'] == REGISTER_CLOSED) {
 144                                         $a = get_app();
 145                                         notice( t('Login failed.') . EOL);
 146                                         goaway($a->get_baseurl());
 147                                         // NOTREACHED
 148                                 }
 149                                 // new account
 150                                 $_SESSION['register'] = 1;
 151                                 $openid->required = array('namePerson/friendly', 'contact/email', 'namePerson');
 152                                 $openid->optional = array('namePerson/first','media/image/aspect11','media/image/default');
 153                                 goaway($openid->authUrl());
 154                                 // NOTREACHED
 155                         }
 156                 }
 157         }
 158         if((x($_POST,'auth-params')) && $_POST['auth-params'] === 'login') {
 159
 160                 $record = null;
 161
 162                 $addon_auth = array(
 163                         'username' => trim($_POST['openid_url']),
 164                         'password' => trim($_POST['password']),
 165                         'authenticated' => 0,
 166                         'user_record' => null
 167                 );
 168
 169                 /**
 170                  *
 171                  * A plugin indicates successful login by setting 'authenticated' to non-zero value and returning a user record
 172                  * Plugins should never set 'authenticated' except to indicate success - as hooks may be chained
 173                  * and later plugins should not interfere with an earlier one that succeeded.
 174                  *
 175                  */
 176
 177                 call_hooks('authenticate', $addon_auth);
 178
 179                 if(($addon_auth['authenticated']) && (count($addon_auth['user_record']))) {
 180                         $record = $addon_auth['user_record'];
 181                 }
 182                 else {
 183
 184                         // process normal login request
 185
 186                         $r = q("SELECT * FROM `user` WHERE ( `email` = '%s' OR `nickname` = '%s' )
 187                                 AND `password` = '%s' AND `blocked` = 0 AND `verified` = 1 LIMIT 1",
 188                                 dbesc(trim($_POST['openid_url'])),
 189                                 dbesc(trim($_POST['openid_url'])),
 190                                 dbesc($encrypted)
 191                         );
 192                         if(count($r))
 193                                 $record = $r[0];
 194                 }
 195
 196                 if((! $record) || (! count($record))) {
 197                         logger('authenticate: failed login attempt: ' . trim($_POST['openid_url']));
 198                         notice( t('Login failed.') . EOL );
 199                         goaway($a->get_baseurl());
 200                 }
 201
 202                 $_SESSION['uid'] = $record['uid'];
 203                 $_SESSION['theme'] = $record['theme'];
 204                 $_SESSION['authenticated'] = 1;
 205                 $_SESSION['page_flags'] = $record['page-flags'];
 206                 $_SESSION['my_url'] = $a->get_baseurl() . '/profile/' . $record['nickname'];
 207                 $_SESSION['addr'] = $_SERVER['REMOTE_ADDR'];
 208
 209                 $a->user = $record;
 210
 211                 if($a->user['login_date'] === '0000-00-00 00:00:00') {
 212                         $_SESSION['return_url'] = 'profile_photo/new';
 213                         $a->module = 'profile_photo';
 214                         info( t("Welcome ") . $a->user['username'] . EOL);
 215                         info( t('Please upload a profile photo.') . EOL);
 216                 }
 217                 else
 218                         info( t("Welcome back ") . $a->user['username'] . EOL);
 219
 220
 221                 $member_since = strtotime($a->user['register_date']);
 222                 if(time() < ($member_since + ( 60 * 60 * 24 * 14)))
 223                         $_SESSION['new_member'] = true;
 224                 else
 225                         $_SESSION['new_member'] = false;
 226
 227                 if(strlen($a->user['timezone'])) {
 228                         date_default_timezone_set($a->user['timezone']);
 229                         $a->timezone = $a->user['timezone'];
 230                 }
 231
 232                 $r = q("SELECT `uid`,`username` FROM `user` WHERE `password` = '%s' AND `email` = '%s'",
 233                         dbesc($a->user['password']),
 234                         dbesc($a->user['email'])
 235                 );
 236                 if(count($r))
 237                         $a->identities = $r;
 238
 239
 240                 $r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `self` = 1 LIMIT 1",
 241                         intval($_SESSION['uid']));
 242                 if(count($r)) {
 243                         $a->contact = $r[0];
 244                         $a->cid = $r[0]['id'];
 245                         $_SESSION['cid'] = $a->cid;
 246                 }
 247
 248                 $l = get_language();
 249
 250                 q("UPDATE `user` SET `login_date` = '%s', `language` = '%s' WHERE `uid` = %d LIMIT 1",
 251                         dbesc(datetime_convert()),
 252                         dbesc($l),
 253                         intval($_SESSION['uid'])
 254                 );
 255
 256                 call_hooks('logged_in', $a->user);
 257
 258                 header('X-Account-Management-Status: active; name="' . $a->user['username'] . '"; id="' . $a->user['nickname'] .'"');
 259                 if(($a->module !== 'home') && isset($_SESSION['return_url']))
 260                         goaway($a->get_baseurl() . '/' . $_SESSION['return_url']);
 261         }
 262 }
 263
 264 // Returns an array of group id's this contact is a member of.
 265 // This array will only contain group id's related to the uid of this
 266 // DFRN contact. They are *not* neccessarily unique across the entire site.
 267
 268
 269 if(! function_exists('init_groups_visitor')) {
 270 function init_groups_visitor($contact_id) {
 271         $groups = array();
 272         $r = q("SELECT `gid` FROM `group_member`
 273                 WHERE `contact-id` = %d ",
 274                 intval($contact_id)
 275         );
 276         if(count($r)) {
 277                 foreach($r as $rr)
 278                         $groups[] = $rr['gid'];
 279         }
 280         return $groups;
 281 }}
 282
 283