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authorAleksander Machniak <alec@alec.pl>2012-05-24 12:39:02 +0200
committerAleksander Machniak <alec@alec.pl>2012-05-24 12:39:02 +0200
commit4d708e6c1d084cbf65e984fcd08c90678c9b2c60 (patch)
tree043471c4c603fe2bf92c3a7a8b51883bc738d5bf
parent7eb4f2e1be6ee02bb386731209c77a156716b292 (diff)
Remove possible confusion on session reads - PHP expects string result not boolean
-rw-r--r--program/include/rcube_session.php35
1 files changed, 18 insertions, 17 deletions
diff --git a/program/include/rcube_session.php b/program/include/rcube_session.php
index 5a6a679d0..09a07d644 100644
--- a/program/include/rcube_session.php
+++ b/program/include/rcube_session.php
@@ -37,7 +37,7 @@ class rcube_session
private $unsets = array();
private $gc_handlers = array();
private $cookiename = 'roundcube_sessauth';
- private $vars = false;
+ private $vars;
private $key;
private $now;
private $secret = '';
@@ -134,11 +134,10 @@ class rcube_session
$this->vars = base64_decode($sql_arr['vars']);
$this->key = $key;
- if (!empty($this->vars))
- return $this->vars;
+ return !empty($this->vars) ? (string) $this->vars : '';
}
- return false;
+ return null;
}
@@ -157,7 +156,7 @@ class rcube_session
// no session row in DB (db_read() returns false)
if (!$this->key) {
- $oldvars = false;
+ $oldvars = null;
}
// use internal data from read() for fast requests (up to 0.5 sec.)
else if ($key == $this->key && (!$this->vars || $ts - $this->start < 0.5)) {
@@ -167,7 +166,7 @@ class rcube_session
$oldvars = $this->db_read($key);
}
- if ($oldvars !== false) {
+ if ($oldvars !== null) {
$newvars = $this->_fixvars($vars, $oldvars);
if ($newvars !== $oldvars) {
@@ -197,7 +196,7 @@ class rcube_session
*/
private function _fixvars($vars, $oldvars)
{
- if ($oldvars !== false) {
+ if ($oldvars !== null) {
$a_oldvars = $this->unserialize($oldvars);
if (is_array($a_oldvars)) {
foreach ((array)$this->unsets as $k)
@@ -265,13 +264,13 @@ class rcube_session
$this->vars = $arr['vars'];
$this->key = $key;
- if (!empty($this->vars))
- return $this->vars;
+ return !empty($this->vars) ? (string) $this->vars : '';
}
- return false;
+ return null;
}
+
/**
* Save session data.
* handler for session_read()
@@ -286,21 +285,22 @@ class rcube_session
// no session data in cache (mc_read() returns false)
if (!$this->key)
- $oldvars = false;
+ $oldvars = null;
// use internal data for fast requests (up to 0.5 sec.)
else if ($key == $this->key && (!$this->vars || $ts - $this->start < 0.5))
$oldvars = $this->vars;
else // else read data again
$oldvars = $this->mc_read($key);
- $newvars = $oldvars !== false ? $this->_fixvars($vars, $oldvars) : $vars;
-
+ $newvars = $oldvars !== null ? $this->_fixvars($vars, $oldvars) : $vars;
+
if ($newvars !== $oldvars || $ts - $this->changed > $this->lifetime / 2)
return $this->memcache->set($key, serialize(array('changed' => time(), 'ip' => $this->ip, 'vars' => $newvars)), MEMCACHE_COMPRESSED, $this->lifetime);
-
+
return true;
}
+
/**
* Handler for session_destroy() with memcache backend
*
@@ -350,7 +350,7 @@ class rcube_session
{
session_regenerate_id($destroy);
- $this->vars = false;
+ $this->vars = null;
$this->key = session_id();
return true;
@@ -373,13 +373,14 @@ class rcube_session
return true;
}
-
+
+
/**
* Kill this session
*/
public function kill()
{
- $this->vars = false;
+ $this->vars = null;
$this->ip = $_SERVER['REMOTE_ADDR']; // update IP (might have changed)
$this->destroy(session_id());
rcube_utils::setcookie($this->cookiename, '-del-', time() - 60);