/usr/share/php/Horde/SessionHandler/Storage/Sql.php is in php-horde-sessionhandler 2.2.9-1ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 | <?php
/**
* SessionHandler storage implementation for SQL databases.
*
* Uses the following SQL table structure:
* <pre>
* CREATE TABLE horde_sessionhandler (
* VARCHAR(32) NOT NULL,
* session_lastmodified INT NOT NULL,
* session_data LONGBLOB,
* -- Or, on some DBMS systems:
* -- session_data IMAGE,
*
* PRIMARY KEY (session_id)
* );
*
* CREATE INDEX session_lastmodified_idx ON horde_sessionhandler (session_lastmodified);
* </pre>
*
* Copyright 2002-2017 Horde LLC (http://www.horde.org/)
*
* See the enclosed file COPYING for license information (LGPL). If you
* did not receive this file, see http://www.horde.org/licenses/lgpl21.
*
* @author Mike Cochrane <mike@graftonhall.co.nz>
* @category Horde
* @license http://www.horde.org/licenses/lgpl21 LGPL 2.1
* @package SessionHandler
*/
class Horde_SessionHandler_Storage_Sql extends Horde_SessionHandler_Storage
{
/**
* Handle for the current database connection.
*
* @var Horde_Db_Adapter
*/
protected $_db;
/**
* Constructor.
*
* @param array $params Parameters:
* <pre>
* 'db' - (Horde_Db_Adapter) [REQUIRED] The DB instance.
* 'table' - (string) The name of the sessions table.
* DEFAULT: 'horde_sessionhandler'
* </pre>
*
* @throws InvalidArgumentException
*/
public function __construct(array $params = array())
{
if (!isset($params['db'])) {
throw new InvalidArgumentException('Missing db parameter.');
}
$this->_db = $params['db'];
unset($params['db']);
parent::__construct(array_merge(array(
'table' => 'horde_sessionhandler'
), $params));
}
/**
*/
public function open($save_path = null, $session_name = null)
{
return true;
}
/**
*/
public function close()
{
/* Close any open transactions. */
if ($this->_db->transactionStarted()) {
try {
$this->_db->commitDbTransaction();
} catch (Horde_Db_Exception $e) {
return false;
}
}
return true;
}
/**
*/
public function read($id)
{
/* Begin a transaction. */
// TODO: Rowlocking in Mysql
if (!$this->_db->transactionStarted()) {
$this->_db->beginDbTransaction();
}
/* Build query. */
$query = sprintf('SELECT session_data FROM %s WHERE session_id = ?',
$this->_params['table']);
$values = array($id);
/* Execute the query. */
try {
$columns = $this->_db->columns($this->_params['table']);
return $columns['session_data']->binaryToString(
$this->_db->selectValue($query, $values));
} catch (Horde_Db_Exception $e) {
return '';
}
}
/**
*/
public function write($id, $session_data)
{
if (!$this->_db->isActive()) {
$this->_db->reconnect();
$this->_db->beginDbTransaction();
}
/* Check if session exists. */
try {
$exists = $this->_db->selectValue(
sprintf('SELECT 1 FROM %s WHERE session_id = ?',
$this->_params['table']),
array($id));
} catch (Horde_Db_Exception $e) {
return false;
}
/* Update or insert session data. */
$values = array(
'session_data' => new Horde_Db_Value_Binary($session_data),
'session_lastmodified' => time()
);
try {
if ($exists) {
$this->_db->updateBlob(
$this->_params['table'],
$values,
array('session_id = ?', array($id))
);
} else {
$this->_db->insertBlob(
$this->_params['table'],
array_merge(array('session_id' => $id), $values),
null,
$id
);
}
$this->_db->commitDbTransaction();
} catch (Horde_Db_Exception $e) {
try {
$this->_db->rollbackDbTransaction();
} catch (Horde_Db_Exception $e) {
}
return false;
}
return true;
}
/**
*/
public function destroy($id)
{
/* Build the SQL query. */
$query = sprintf('DELETE FROM %s WHERE session_id = ?',
$this->_params['table']);
$values = array($id);
/* Execute the query. */
try {
$this->_db->delete($query, $values);
$this->_db->commitDbTransaction();
} catch (Horde_Db_Exception $e) {
return false;
}
return true;
}
/**
*/
public function gc($maxlifetime = 300)
{
/* Build the SQL query. */
$query = sprintf('DELETE FROM %s WHERE session_lastmodified < ?',
$this->_params['table']);
$values = array(time() - $maxlifetime);
/* Execute the query. */
try {
$this->_db->delete($query, $values);
} catch (Horde_Db_Exception $e) {
return false;
}
return true;
}
/**
*/
public function getSessionIDs()
{
$this->open();
/* Build the SQL query. */
$query = sprintf('SELECT session_id FROM %s' .
' WHERE session_lastmodified >= ?',
$this->_params['table']);
$values = array(time() - ini_get('session.gc_maxlifetime'));
/* Execute the query. */
try {
return $this->_db->selectValues($query, $values);
} catch (Horde_Db_Exception $e) {
return array();
}
}
}
|