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author | Dries Buytaert <dries@buytaert.net> | 2008-08-23 07:13:49 +0000 |
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committer | Dries Buytaert <dries@buytaert.net> | 2008-08-23 07:13:49 +0000 |
commit | 71f0176bebd95e98e1704ee920b45862d1d125e3 (patch) | |
tree | e32facb4c76b0d7a03c266b839a5960054c11c9e /includes/session.inc | |
parent | ba0672bc60c36dce1abb6ef1245c22c4c4bf9b70 (diff) | |
download | brdo-71f0176bebd95e98e1704ee920b45862d1d125e3.tar.gz brdo-71f0176bebd95e98e1704ee920b45862d1d125e3.tar.bz2 |
- Patch #297860 by Damien Tournoud: sess_write should use a db_merge().
Diffstat (limited to 'includes/session.inc')
-rw-r--r-- | includes/session.inc | 52 |
1 files changed, 24 insertions, 28 deletions
diff --git a/includes/session.inc b/includes/session.inc index 13a043cef..01c271157 100644 --- a/includes/session.inc +++ b/includes/session.inc @@ -29,7 +29,7 @@ function sess_read($key) { } // Otherwise, if the session is still active, we have a record of the client's session in the database. - $user = db_fetch_object(db_query("SELECT u.*, s.* FROM {users} u INNER JOIN {sessions} s ON u.uid = s.uid WHERE s.sid = '%s'", $key)); + $user = db_query("SELECT u.*, s.* FROM {users} u INNER JOIN {sessions} s ON u.uid = s.uid WHERE s.sid = :sid", array(':sid' => $key))->fetch(); // We found the client's session record and they are an authenticated user if ($user && $user->uid > 0) { @@ -39,7 +39,7 @@ function sess_read($key) { // Add roles element to $user $user->roles = array(); $user->roles[DRUPAL_AUTHENTICATED_RID] = 'authenticated user'; - $result = db_query("SELECT r.rid, r.name FROM {role} r INNER JOIN {users_roles} ur ON ur.rid = r.rid WHERE ur.uid = %d", $user->uid); + $result = db_query("SELECT r.rid, r.name FROM {role} r INNER JOIN {users_roles} ur ON ur.rid = r.rid WHERE ur.uid = :uid", array(':uid' => $user->uid)); while ($role = db_fetch_object($result)) { $user->roles[$role->rid] = $role->name; } @@ -65,27 +65,20 @@ function sess_write($key, $value) { return TRUE; } - $result = db_result(db_query("SELECT COUNT(*) FROM {sessions} WHERE sid = '%s'", $key)); + $fields = array( + 'uid' => $user->uid, + 'cache' => isset($user->cache) ? $user->cache : 0, + 'hostname' => ip_address(), + 'session' => $value, + 'timestamp' => time(), + ); - if (!$result) { - // Only save session data when when the browser sends a cookie. This keeps - // crawlers out of session table. This reduces memory and server load, - // and gives more useful statistics. We can't eliminate anonymous session - // table rows without breaking "Who's Online" block. - if ($user->uid || $value || count($_COOKIE)) { - db_query("INSERT INTO {sessions} (sid, uid, cache, hostname, session, timestamp) VALUES ('%s', %d, %d, '%s', '%s', %d)", $key, $user->uid, isset($user->cache) ? $user->cache : 0, ip_address(), $value, time()); - } - } - else { - db_query("UPDATE {sessions} SET uid = %d, cache = %d, hostname = '%s', session = '%s', timestamp = %d WHERE sid = '%s'", $user->uid, isset($user->cache) ? $user->cache : 0, ip_address(), $value, time(), $key); - - if (db_affected_rows()) { - // Last access time is updated no more frequently than once every 180 seconds. - // This reduces contention in the users table. - if ($user->uid && time() - $user->access > variable_get('session_write_interval', 180)) { - db_query("UPDATE {users} SET access = %d WHERE uid = %d", time(), $user->uid); - } - } + db_merge('sessions')->key(array('sid' => $key))->fields($fields)->execute(); + + // Last access time is updated no more frequently than once every 180 seconds. + // This reduces contention in the users table. + if ($user->uid && time() - $user->access > variable_get('session_write_interval', 180)) { + db_update('users')->fields(array('access' => time()))->condition('uid', $user->uid)->execute(); } return TRUE; @@ -97,7 +90,7 @@ function sess_write($key, $value) { function sess_regenerate() { $old_session_id = session_id(); session_regenerate_id(); - db_query("UPDATE {sessions} SET sid = '%s' WHERE sid = '%s'", session_id(), $old_session_id); + db_update('sessions')->fields(array('sid' => session_id()))->condition('sid', $old_session_id)->execute(); } /** @@ -113,8 +106,11 @@ function sess_regenerate() { * The number of users with sessions. */ function sess_count($timestamp = 0, $anonymous = true) { - $query = $anonymous ? ' AND uid = 0' : ' AND uid > 0'; - return db_result(db_query('SELECT COUNT(sid) AS count FROM {sessions} WHERE timestamp >= %d' . $query, $timestamp)); + $query = db_select('sessions'); + $query->addExpression('COUNT(sid)', 'count'); + $query->condition('timestamp', $timestamp, '>='); + $query->condition('uid', 0, $anonymous ? '=' : '>'); + return $query->execute()->fetchField(); } /** @@ -124,7 +120,7 @@ function sess_count($timestamp = 0, $anonymous = true) { * the session id */ function sess_destroy_sid($sid) { - db_query("DELETE FROM {sessions} WHERE sid = '%s'", $sid); + db_query("DELETE FROM {sessions} WHERE sid = :sid", array(':sid' => $sid)); } /** @@ -134,7 +130,7 @@ function sess_destroy_sid($sid) { * the user id */ function sess_destroy_uid($uid) { - db_query('DELETE FROM {sessions} WHERE uid = %d', $uid); + db_query('DELETE FROM {sessions} WHERE uid = :uid', array(':uid' => $uid)); } function sess_gc($lifetime) { @@ -143,7 +139,7 @@ function sess_gc($lifetime) { // for three weeks before deleting them, you need to set gc_maxlifetime // to '1814400'. At that value, only after a user doesn't log in after // three weeks (1814400 seconds) will his/her session be removed. - db_query("DELETE FROM {sessions} WHERE timestamp < %d", time() - $lifetime); + db_query("DELETE FROM {sessions} WHERE timestamp < :timestamp", array(':timestamp' => time() - $lifetime)); return TRUE; } |