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Diffstat (limited to 'program/lib/Roundcube/rcube_session.php')
-rw-r--r--program/lib/Roundcube/rcube_session.php94
1 files changed, 50 insertions, 44 deletions
diff --git a/program/lib/Roundcube/rcube_session.php b/program/lib/Roundcube/rcube_session.php
index 4e0682749..615ec6f0e 100644
--- a/program/lib/Roundcube/rcube_session.php
+++ b/program/lib/Roundcube/rcube_session.php
@@ -32,6 +32,7 @@ class rcube_session
private $ip;
private $start;
private $changed;
+ private $time_diff = 0;
private $reloaded = false;
private $unsets = array();
private $gc_handlers = array();
@@ -93,7 +94,7 @@ class rcube_session
array($this, 'db_read'),
array($this, 'db_write'),
array($this, 'db_destroy'),
- array($this, 'db_gc'));
+ array($this, 'gc'));
}
}
@@ -148,6 +149,11 @@ class rcube_session
}
session_write_close();
+
+ // write_close() is called on script shutdown, see rcube::shutdown()
+ // execute cleanup functionality if enabled by session gc handler
+ // we do this after closing the session for better performance
+ $this->gc_shutdown();
}
@@ -161,14 +167,16 @@ class rcube_session
public function db_read($key)
{
$sql_result = $this->db->query(
- "SELECT vars, ip, changed FROM ".$this->db->table_name('session')
- ." WHERE sess_id = ?", $key);
+ "SELECT vars, ip, changed, " . $this->db->now() . " AS ts"
+ . " FROM " . $this->db->table_name('session')
+ . " WHERE sess_id = ?", $key);
if ($sql_result && ($sql_arr = $this->db->fetch_assoc($sql_result))) {
- $this->changed = strtotime($sql_arr['changed']);
- $this->ip = $sql_arr['ip'];
- $this->vars = base64_decode($sql_arr['vars']);
- $this->key = $key;
+ $this->time_diff = time() - strtotime($sql_arr['ts']);
+ $this->changed = strtotime($sql_arr['changed']);
+ $this->ip = $sql_arr['ip'];
+ $this->vars = base64_decode($sql_arr['vars']);
+ $this->key = $key;
return !empty($this->vars) ? (string) $this->vars : '';
}
@@ -188,8 +196,9 @@ class rcube_session
*/
public function db_write($key, $vars)
{
- $ts = microtime(true);
- $now = $this->db->fromunixtime((int)$ts);
+ $now = $this->db->now();
+ $table = $this->db->table_name('session');
+ $ts = microtime(true);
// no session row in DB (db_read() returns false)
if (!$this->key) {
@@ -207,22 +216,19 @@ class rcube_session
$newvars = $this->_fixvars($vars, $oldvars);
if ($newvars !== $oldvars) {
- $this->db->query(
- sprintf("UPDATE %s SET vars=?, changed=%s WHERE sess_id=?",
- $this->db->table_name('session'), $now),
- base64_encode($newvars), $key);
+ $this->db->query("UPDATE $table "
+ . "SET changed = $now, vars = ? WHERE sess_id = ?",
+ base64_encode($newvars), $key);
}
- else if ($ts - $this->changed > $this->lifetime / 2) {
- $this->db->query("UPDATE ".$this->db->table_name('session')
- ." SET changed=$now WHERE sess_id=?", $key);
+ else if ($ts - $this->changed + $this->time_diff > $this->lifetime / 2) {
+ $this->db->query("UPDATE $table SET changed = $now"
+ . " WHERE sess_id = ?", $key);
}
}
else {
- $this->db->query(
- sprintf("INSERT INTO %s (sess_id, vars, ip, created, changed) ".
- "VALUES (?, ?, ?, %s, %s)",
- $this->db->table_name('session'), $now, $now),
- $key, base64_encode($vars), (string)$this->ip);
+ $this->db->query("INSERT INTO $table (sess_id, vars, ip, created, changed)"
+ . " VALUES (?, ?, ?, $now, $now)",
+ $key, base64_encode($vars), (string)$this->ip);
}
return true;
@@ -282,25 +288,6 @@ class rcube_session
/**
- * Garbage collecting function
- *
- * @param string Session lifetime in seconds
- * @return boolean True on success
- */
- public function db_gc($maxlifetime)
- {
- // just delete all expired sessions
- $this->db->query(
- sprintf("DELETE FROM %s WHERE changed < %s",
- $this->db->table_name('session'), $this->db->fromunixtime(time() - $maxlifetime)));
-
- $this->gc();
-
- return true;
- }
-
-
- /**
* Read session data from memcache
*
* @param string Session ID
@@ -376,11 +363,11 @@ class rcube_session
/**
* Execute registered garbage collector routines
*/
- public function gc()
+ public function gc($maxlifetime)
{
- foreach ($this->gc_handlers as $fct) {
- call_user_func($fct);
- }
+ // move gc execution to the script shutdown function
+ // see rcube::shutdown() and rcube_session::write_close()
+ return $this->gc_enabled = $maxlifetime;
}
@@ -402,6 +389,25 @@ class rcube_session
/**
+ * Garbage collector handler to run on script shutdown
+ */
+ protected function gc_shutdown()
+ {
+ if ($this->gc_enabled) {
+ // just delete all expired sessions
+ if ($this->storage == 'db') {
+ $this->db->query("DELETE FROM " . $this->db->table_name('session')
+ . " WHERE changed < " . $this->db->now(-$this->gc_enabled));
+ }
+
+ foreach ($this->gc_handlers as $fct) {
+ call_user_func($fct);
+ }
+ }
+ }
+
+
+ /**
* Generate and set new session id
*
* @param boolean $destroy If enabled the current session will be destroyed