3 namespace Friendica\Core\Session;
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5 use Friendica\BaseObject;
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6 use Friendica\Core\Session;
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7 use Friendica\Database\DBM;
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8 use SessionHandlerInterface;
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11 require_once 'boot.php';
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12 require_once 'include/dba.php';
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13 require_once 'include/text.php';
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16 * SessionHandler using database
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18 * @author Hypolite Petovan <mrpetovan@gmail.com>
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20 class DatabaseSessionHandler extends BaseObject implements SessionHandlerInterface
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22 public function open($save_path, $session_name)
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27 public function read($session_id)
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29 if (!x($session_id)) {
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33 $session = dba::selectFirst('session', ['data'], ['sid' => $session_id]);
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34 if (DBM::is_result($session)) {
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35 Session::$exists = true;
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36 return $session['data'];
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38 logger("no data for session $session_id", LOGGER_TRACE);
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44 * @brief Standard PHP session write callback
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46 * This callback updates the DB-stored session data and/or the expiration depending
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47 * on the case. Uses the Session::expire global for existing session, 5 minutes
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48 * for newly created session.
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50 * @param string $session_id Session ID with format: [a-z0-9]{26}
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51 * @param string $session_data Serialized session data
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52 * @return boolean Returns false if parameters are missing, true otherwise
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54 public function write($session_id, $session_data)
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60 if (!$session_data) {
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64 $expire = time() + Session::$expire;
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65 $default_expire = time() + 300;
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67 if (Session::$exists) {
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68 $fields = ['data' => $session_data, 'expire' => $expire];
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69 $condition = ["`sid` = ? AND (`data` != ? OR `expire` != ?)", $session_id, $session_data, $expire];
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70 dba::update('session', $fields, $condition);
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72 $fields = ['sid' => $session_id, 'expire' => $default_expire, 'data' => $session_data];
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73 dba::insert('session', $fields);
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79 public function close()
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84 public function destroy($id)
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86 dba::delete('session', ['sid' => $id]);
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90 public function gc($maxlifetime)
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92 dba::delete('session', ["`expire` < ?", time()]);
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