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