src/Core/Session.php

   1 <?php
   2
   3 /**
   4  * @file src/Core/Session.php
   5  */
   6 namespace Friendica\Core;
   7
   8 use Friendica\App;
   9 use Friendica\Core\Session\CacheSessionHandler;
  10 use Friendica\Core\Session\DatabaseSessionHandler;
  11 use Friendica\Database\DBA;
  12 use Friendica\Model\Contact;
  13 use Friendica\Model\User;
  14 use Friendica\Util\DateTimeFormat;
  15 use Friendica\Util\Strings;
  16
  17 /**
  18  * High-level Session service class
  19  *
  20  * @author Hypolite Petovan <hypolite@mrpetovan.com>
  21  */
  22 class Session
  23 {
  24         public static $exists = false;
  25         public static $expire = 180000;
  26
  27         public static function init()
  28         {
  29                 ini_set('session.gc_probability', 50);
  30                 ini_set('session.use_only_cookies', 1);
  31                 ini_set('session.cookie_httponly', 1);
  32
  33                 if (Config::get('system', 'ssl_policy') == App\BaseURL::SSL_POLICY_FULL) {
  34                         ini_set('session.cookie_secure', 1);
  35                 }
  36
  37                 $session_handler = Config::get('system', 'session_handler', 'database');
  38                 if ($session_handler != 'native') {
  39                         if ($session_handler == 'cache' && Config::get('system', 'cache_driver', 'database') != 'database') {
  40                                 $SessionHandler = new CacheSessionHandler();
  41                         } else {
  42                                 $SessionHandler = new DatabaseSessionHandler();
  43                         }
  44
  45                         session_set_save_handler($SessionHandler);
  46                 }
  47         }
  48
  49         public static function exists($name)
  50         {
  51                 return isset($_SESSION[$name]);
  52         }
  53
  54         /**
  55          * Retrieves a key from the session super global or the defaults if the key is missing or the value is falsy.
  56          *
  57          * Handle the case where session_start() hasn't been called and the super global isn't available.
  58          *
  59          * @param string $name
  60          * @param mixed $defaults
  61          * @return mixed
  62          */
  63         public static function get($name, $defaults = null)
  64         {
  65                 return $_SESSION[$name] ?? $defaults;
  66         }
  67
  68         /**
  69          * Sets a single session variable.
  70          * Overrides value of existing key.
  71          *
  72          * @param string $name
  73          * @param mixed $value
  74          */
  75         public static function set($name, $value)
  76         {
  77                 $_SESSION[$name] = $value;
  78         }
  79
  80         /**
  81          * Sets multiple session variables.
  82          * Overrides values for existing keys.
  83          *
  84          * @param array $values
  85          */
  86         public static function setMultiple(array $values)
  87         {
  88                 $_SESSION = $values + $_SESSION;
  89         }
  90
  91         /**
  92          * Removes a session variable.
  93          * Ignores missing keys.
  94          *
  95          * @param $name
  96          */
  97         public static function remove($name)
  98         {
  99                 unset($_SESSION[$name]);
 100         }
 101
 102         /**
 103          * @brief Sets the provided user's authenticated session
 104          *
 105          * @param App   $a
 106          * @param array $user_record
 107          * @param bool  $login_initial
 108          * @param bool  $interactive
 109          * @param bool  $login_refresh
 110          * @throws \Friendica\Network\HTTPException\InternalServerErrorException
 111          */
 112         public static function setAuthenticatedForUser(App $a, array $user_record, $login_initial = false, $interactive = false, $login_refresh = false)
 113         {
 114                 self::setMultiple([
 115                         'uid'           => $user_record['uid'],
 116                         'theme'         => $user_record['theme'],
 117                         'mobile-theme'  => PConfig::get($user_record['uid'], 'system', 'mobile_theme'),
 118                         'authenticated' => 1,
 119                         'page_flags'    => $user_record['page-flags'],
 120                         'my_url'        => $a->getBaseURL() . '/profile/' . $user_record['nickname'],
 121                         'my_address'    => $user_record['nickname'] . '@' . substr($a->getBaseURL(), strpos($a->getBaseURL(), '://') + 3),
 122                         'addr'          => defaults($_SERVER, 'REMOTE_ADDR', '0.0.0.0'),
 123                         'remote'        => [],
 124                 ]);
 125
 126                 $remote_contacts = DBA::select('contact', ['id', 'uid'], ['nurl' => Strings::normaliseLink($_SESSION['my_url']), 'rel' => [Contact::FOLLOWER, Contact::FRIEND], 'self' => false]);
 127                 while ($contact = DBA::fetch($remote_contacts)) {
 128                         if (($contact['uid'] == 0) || Contact::isBlockedByUser($contact['id'], $contact['uid'])) {
 129                                 continue;
 130                         }
 131
 132                         $_SESSION['remote'][$contact['uid']] = $contact['id'];
 133                 }
 134                 DBA::close($remote_contacts);
 135
 136                 $member_since = strtotime($user_record['register_date']);
 137                 self::set('new_member', time() < ($member_since + ( 60 * 60 * 24 * 14)));
 138
 139                 if (strlen($user_record['timezone'])) {
 140                         date_default_timezone_set($user_record['timezone']);
 141                         $a->timezone = $user_record['timezone'];
 142                 }
 143
 144                 $masterUid = $user_record['uid'];
 145
 146                 if (self::get('submanage')) {
 147                         $user = DBA::selectFirst('user', ['uid'], ['uid' => self::get('submanage')]);
 148                         if (DBA::isResult($user)) {
 149                                 $masterUid = $user['uid'];
 150                         }
 151                 }
 152
 153                 $a->identities = User::identities($masterUid);
 154
 155                 if ($login_initial) {
 156                         $a->getLogger()->info('auth_identities: ' . print_r($a->identities, true));
 157                 }
 158
 159                 if ($login_refresh) {
 160                         $a->getLogger()->info('auth_identities refresh: ' . print_r($a->identities, true));
 161                 }
 162
 163                 $contact = DBA::selectFirst('contact', [], ['uid' => $user_record['uid'], 'self' => true]);
 164                 if (DBA::isResult($contact)) {
 165                         $a->contact = $contact;
 166                         $a->cid = $contact['id'];
 167                         self::set('cid', $a->cid);
 168                 }
 169
 170                 header('X-Account-Management-Status: active; name="' . $user_record['username'] . '"; id="' . $user_record['nickname'] . '"');
 171
 172                 if ($login_initial || $login_refresh) {
 173                         DBA::update('user', ['login_date' => DateTimeFormat::utcNow()], ['uid' => $user_record['uid']]);
 174
 175                         // Set the login date for all identities of the user
 176                         DBA::update('user', ['login_date' => DateTimeFormat::utcNow()],
 177                                 ['parent-uid' => $masterUid, 'account_removed' => false]);
 178                 }
 179
 180                 if ($login_initial) {
 181                         /*
 182                          * If the user specified to remember the authentication, then set a cookie
 183                          * that expires after one week (the default is when the browser is closed).
 184                          * The cookie will be renewed automatically.
 185                          * The week ensures that sessions will expire after some inactivity.
 186                          */
 187                         ;
 188                         if (self::get('remember')) {
 189                                 $a->getLogger()->info('Injecting cookie for remembered user ' . $user_record['nickname']);
 190                                 Authentication::setCookie(604800, $user_record);
 191                                 self::remove('remember');
 192                         }
 193                 }
 194
 195                 Authentication::twoFactorCheck($user_record['uid'], $a);
 196
 197                 if ($interactive) {
 198                         if ($user_record['login_date'] <= DBA::NULL_DATETIME) {
 199                                 info(L10n::t('Welcome %s', $user_record['username']));
 200                                 info(L10n::t('Please upload a profile photo.'));
 201                                 $a->internalRedirect('profile_photo/new');
 202                         } else {
 203                                 info(L10n::t("Welcome back %s", $user_record['username']));
 204                         }
 205                 }
 206
 207                 $a->user = $user_record;
 208
 209                 if ($login_initial) {
 210                         Hook::callAll('logged_in', $a->user);
 211
 212                         if ($a->module !== 'home' && self::exists('return_path')) {
 213                                 $a->internalRedirect(self::get('return_path'));
 214                         }
 215                 }
 216         }
 217
 218         /**
 219          * Returns contact ID for given user ID
 220          *
 221          * @param integer $uid User ID
 222          * @return integer Contact ID of visitor for given user ID
 223          */
 224         public static function getVisitorContactIDForUserID($uid)
 225         {
 226                 if (empty($_SESSION['remote'][$uid])) {
 227                         return false;
 228                 }
 229
 230                 return $_SESSION['remote'][$uid];
 231         }
 232
 233         /**
 234          * Returns User ID for given contact ID of the visitor
 235          *
 236          * @param integer $cid Contact ID
 237          * @return integer User ID for given contact ID of the visitor
 238          */
 239         public static function getUserIDForVisitorContactID($cid)
 240         {
 241                 if (empty($_SESSION['remote'])) {
 242                         return false;
 243                 }
 244
 245                 return array_search($cid, $_SESSION['remote']);
 246         }
 247 }