From c1bc8f6c827a27540b5510b42dcc65b39d38f2c1 Mon Sep 17 00:00:00 2001
From: Aleksander Machniak <alec@alec.pl>
Date: Mon, 14 Oct 2013 07:19:37 -0400
Subject: [PATCH] Change so abort=true does not break the loop in exec_hook(), provide a new 'break' flag for this purpose
---
program/lib/Roundcube/rcube_session.php | 146 +++++++++++++++++++++++++++++++-----------------
1 files changed, 94 insertions(+), 52 deletions(-)
diff --git a/program/lib/Roundcube/rcube_session.php b/program/lib/Roundcube/rcube_session.php
index dedde22..67072df 100644
--- a/program/lib/Roundcube/rcube_session.php
+++ b/program/lib/Roundcube/rcube_session.php
@@ -32,6 +32,7 @@
private $ip;
private $start;
private $changed;
+ private $time_diff = 0;
private $reloaded = false;
private $unsets = array();
private $gc_handlers = array();
@@ -42,6 +43,7 @@
private $secret = '';
private $ip_check = false;
private $logging = false;
+ private $storage;
private $memcache;
@@ -52,18 +54,21 @@
{
$this->db = $db;
$this->start = microtime(true);
- $this->ip = $_SERVER['REMOTE_ADDR'];
+ $this->ip = rcube_utils::remote_addr();
$this->logging = $config->get('log_session', false);
$lifetime = $config->get('session_lifetime', 1) * 60;
$this->set_lifetime($lifetime);
// use memcache backend
- if ($config->get('session_storage', 'db') == 'memcache') {
+ $this->storage = $config->get('session_storage', 'db');
+ if ($this->storage == 'memcache') {
$this->memcache = rcube::get_instance()->get_memcache();
// set custom functions for PHP session management if memcache is available
if ($this->memcache) {
+ ini_set('session.serialize_handler', 'php');
+
session_set_save_handler(
array($this, 'open'),
array($this, 'close'),
@@ -79,7 +84,9 @@
true, true);
}
}
- else {
+ else if ($this->storage != 'php') {
+ ini_set('session.serialize_handler', 'php');
+
// set custom functions for PHP session management
session_set_save_handler(
array($this, 'open'),
@@ -87,7 +94,23 @@
array($this, 'db_read'),
array($this, 'db_write'),
array($this, 'db_destroy'),
- array($this, 'db_gc'));
+ array($this, 'gc'));
+ }
+ }
+
+
+ /**
+ * Wrapper for session_start()
+ */
+ public function start()
+ {
+ session_start();
+
+ // copy some session properties to object vars
+ if ($this->storage == 'php') {
+ $this->key = session_id();
+ $this->ip = $_SESSION['__IP'];
+ $this->changed = $_SESSION['__MTIME'];
}
}
@@ -116,6 +139,25 @@
/**
+ * Wrapper for session_write_close()
+ */
+ public function write_close()
+ {
+ if ($this->storage == 'php') {
+ $_SESSION['__IP'] = $this->ip;
+ $_SESSION['__MTIME'] = time();
+ }
+
+ 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
+ $this->gc_shutdown();
+ }
+
+
+ /**
* Read session data from database
*
* @param string Session ID
@@ -125,14 +167,16 @@
public function db_read($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) $this->vars : '';
}
@@ -152,8 +196,9 @@
*/
public function db_write($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) {
@@ -171,22 +216,19 @@
$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)$this->ip);
}
return true;
@@ -246,25 +288,6 @@
/**
- * Garbage collecting function
- *
- * @param string Session lifetime in seconds
- * @return boolean True on success
- */
- public function db_gc($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
@@ -310,9 +333,9 @@
$newvars = $oldvars !== null ? $this->_fixvars($vars, $oldvars) : $vars;
- if ($newvars !== $oldvars || $ts - $this->changed > $this->lifetime / 2) {
+ if ($newvars !== $oldvars || $ts - $this->changed > $this->lifetime / 3) {
return $this->memcache->set($key, serialize(array('changed' => time(), 'ip' => $this->ip, 'vars' => $newvars)),
- MEMCACHE_COMPRESSED, $this->lifetime);
+ MEMCACHE_COMPRESSED, $this->lifetime + 60);
}
return true;
@@ -340,11 +363,11 @@
/**
* Execute registered garbage collector routines
*/
- public function gc()
+ public function gc($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;
}
@@ -362,6 +385,25 @@
}
$this->gc_handlers[] = $func;
+ }
+
+
+ /**
+ * Garbage collector handler to run on script shutdown
+ */
+ protected function gc_shutdown()
+ {
+ if ($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);
+ }
+ }
}
@@ -438,7 +480,7 @@
public function kill()
{
$this->vars = null;
- $this->ip = $_SERVER['REMOTE_ADDR']; // update IP (might have changed)
+ $this->ip = rcube_utils::remote_addr(); // update IP (might have changed)
$this->destroy(session_id());
rcube_utils::setcookie($this->cookiename, '-del-', time() - 60);
}
@@ -652,10 +694,10 @@
function check_auth()
{
$this->cookie = $_COOKIE[$this->cookiename];
- $result = $this->ip_check ? $_SERVER['REMOTE_ADDR'] == $this->ip : true;
+ $result = $this->ip_check ? rcube_utils::remote_addr() == $this->ip : true;
if (!$result) {
- $this->log("IP check failed for " . $this->key . "; expected " . $this->ip . "; got " . $_SERVER['REMOTE_ADDR']);
+ $this->log("IP check failed for " . $this->key . "; expected " . $this->ip . "; got " . rcube_utils::remote_addr());
}
if ($result && $this->_mkcookie($this->now) != $this->cookie) {
--
Gitblit v1.9.1