|
|
|
@ -42,6 +42,7 @@ class rcube_cache
|
|
|
|
|
private $userid;
|
|
|
|
|
private $prefix;
|
|
|
|
|
private $ttl;
|
|
|
|
|
private $packed;
|
|
|
|
|
private $index;
|
|
|
|
|
private $cache = array();
|
|
|
|
|
private $cache_keys = array();
|
|
|
|
@ -56,8 +57,11 @@ class rcube_cache
|
|
|
|
|
* @param int $userid User identifier
|
|
|
|
|
* @param string $prefix Key name prefix
|
|
|
|
|
* @param int $ttl Expiration time of memcache/apc items in seconds (max.2592000)
|
|
|
|
|
* @param bool $packed Enables/disabled data serialization.
|
|
|
|
|
* It's possible to disable data serialization if you're sure
|
|
|
|
|
* stored data will be always a safe string
|
|
|
|
|
*/
|
|
|
|
|
function __construct($type, $userid, $prefix='', $ttl=0)
|
|
|
|
|
function __construct($type, $userid, $prefix='', $ttl=0, $packed=true)
|
|
|
|
|
{
|
|
|
|
|
$rcmail = rcmail::get_instance();
|
|
|
|
|
$type = strtolower($type);
|
|
|
|
@ -77,6 +81,7 @@ class rcube_cache
|
|
|
|
|
|
|
|
|
|
$this->userid = (int) $userid;
|
|
|
|
|
$this->ttl = (int) $ttl;
|
|
|
|
|
$this->packed = $packed;
|
|
|
|
|
$this->prefix = $prefix;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
@ -112,6 +117,38 @@ class rcube_cache
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* Returns cached value without storing it in internal memory.
|
|
|
|
|
*
|
|
|
|
|
* @param string $key Cache key name
|
|
|
|
|
*
|
|
|
|
|
* @return mixed Cached value
|
|
|
|
|
*/
|
|
|
|
|
function read($key)
|
|
|
|
|
{
|
|
|
|
|
if (array_key_exists($key, $this->cache)) {
|
|
|
|
|
return $this->cache[$key];
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return $this->read_record($key, true);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* Sets (add/update) value in cache and immediately saves
|
|
|
|
|
* it in the backend, no internal memory will be used.
|
|
|
|
|
*
|
|
|
|
|
* @param string $key Cache key name
|
|
|
|
|
* @param mixed $data Cache data
|
|
|
|
|
*
|
|
|
|
|
* @param boolean True on success, False on failure
|
|
|
|
|
*/
|
|
|
|
|
function write($key, $data)
|
|
|
|
|
{
|
|
|
|
|
return $this->write_record($key, $this->packed ? serialize($data) : $data);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* Clears the cache.
|
|
|
|
|
*
|
|
|
|
@ -164,7 +201,7 @@ class rcube_cache
|
|
|
|
|
if ($this->cache_changes[$key]) {
|
|
|
|
|
// Make sure we're not going to write unchanged data
|
|
|
|
|
// by comparing current md5 sum with the sum calculated on DB read
|
|
|
|
|
$data = serialize($data);
|
|
|
|
|
$data = $this->packed ? serialize($data) : $data;
|
|
|
|
|
|
|
|
|
|
if (!$this->cache_sums[$key] || $this->cache_sums[$key] != md5($data)) {
|
|
|
|
|
$this->write_record($key, $data);
|
|
|
|
@ -180,10 +217,11 @@ class rcube_cache
|
|
|
|
|
* Reads cache entry.
|
|
|
|
|
*
|
|
|
|
|
* @param string $key Cache key name
|
|
|
|
|
* @param boolean $nostore Enable to skip in-memory store
|
|
|
|
|
*
|
|
|
|
|
* @return mixed Cached value
|
|
|
|
|
*/
|
|
|
|
|
private function read_record($key)
|
|
|
|
|
private function read_record($key, $nostore=false)
|
|
|
|
|
{
|
|
|
|
|
if (!$this->db) {
|
|
|
|
|
return null;
|
|
|
|
@ -197,10 +235,18 @@ class rcube_cache
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if ($data) {
|
|
|
|
|
$this->cache_sums[$key] = md5($data);
|
|
|
|
|
$this->cache[$key] = unserialize($data);
|
|
|
|
|
$md5sum = md5($data);
|
|
|
|
|
$data = $this->packed ? unserialize($data) : $data;
|
|
|
|
|
|
|
|
|
|
if ($nostore) {
|
|
|
|
|
return $data;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
$this->cache_sums[$key] = $md5sum;
|
|
|
|
|
$this->cache[$key] = $data;
|
|
|
|
|
}
|
|
|
|
|
else if ($this->type == 'db') {
|
|
|
|
|
|
|
|
|
|
if ($this->type == 'db') {
|
|
|
|
|
$sql_result = $this->db->limitquery(
|
|
|
|
|
"SELECT cache_id, data, cache_key".
|
|
|
|
|
" FROM ".get_table_name('cache').
|
|
|
|
@ -214,7 +260,14 @@ class rcube_cache
|
|
|
|
|
if ($sql_arr = $this->db->fetch_assoc($sql_result)) {
|
|
|
|
|
$key = substr($sql_arr['cache_key'], strlen($this->prefix)+1);
|
|
|
|
|
$md5sum = $sql_arr['data'] ? md5($sql_arr['data']) : null;
|
|
|
|
|
$data = $sql_arr['data'] ? unserialize($sql_arr['data']) : null;
|
|
|
|
|
if ($sql_arr['data']) {
|
|
|
|
|
$data = $this->packed ? unserialize($sql_arr['data']) : $sql_arr['data'];
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if ($nostore) {
|
|
|
|
|
return $data;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
$this->cache[$key] = $data;
|
|
|
|
|
$this->cache_sums[$key] = $md5sum;
|
|
|
|
|
$this->cache_keys[$key] = $sql_arr['cache_id'];
|
|
|
|
@ -230,6 +283,8 @@ class rcube_cache
|
|
|
|
|
*
|
|
|
|
|
* @param string $key Cache key name
|
|
|
|
|
* @param mxied $data Serialized cache data
|
|
|
|
|
*
|
|
|
|
|
* @param boolean True on success, False on failure
|
|
|
|
|
*/
|
|
|
|
|
private function write_record($key, $data)
|
|
|
|
|
{
|
|
|
|
@ -257,7 +312,7 @@ class rcube_cache
|
|
|
|
|
|
|
|
|
|
// update existing cache record
|
|
|
|
|
if ($key_exists) {
|
|
|
|
|
$this->db->query(
|
|
|
|
|
$result = $this->db->query(
|
|
|
|
|
"UPDATE ".get_table_name('cache').
|
|
|
|
|
" SET created = ". $this->db->now().", data = ?".
|
|
|
|
|
" WHERE user_id = ?".
|
|
|
|
@ -268,14 +323,14 @@ class rcube_cache
|
|
|
|
|
else {
|
|
|
|
|
// for better performance we allow more records for one key
|
|
|
|
|
// so, no need to check if record exist (see rcube_cache::read_record())
|
|
|
|
|
$this->db->query(
|
|
|
|
|
$result = $this->db->query(
|
|
|
|
|
"INSERT INTO ".get_table_name('cache').
|
|
|
|
|
" (created, user_id, cache_key, data)".
|
|
|
|
|
" VALUES (".$this->db->now().", ?, ?, ?)",
|
|
|
|
|
$this->userid, $key, $data);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return true;
|
|
|
|
|
return $this->db->affected_rows($result);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
@ -341,23 +396,40 @@ class rcube_cache
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* Adds entry into memcache/apc DB.
|
|
|
|
|
*
|
|
|
|
|
* @param string $key Cache key name
|
|
|
|
|
* @param mxied $data Serialized cache data
|
|
|
|
|
* @param bollean $index Enables immediate index update
|
|
|
|
|
*
|
|
|
|
|
* @param boolean True on success, False on failure
|
|
|
|
|
*/
|
|
|
|
|
private function add_record($key, $data)
|
|
|
|
|
private function add_record($key, $data, $index=false)
|
|
|
|
|
{
|
|
|
|
|
if ($this->type == 'memcache') {
|
|
|
|
|
$result = $this->db->replace($key, $data, MEMCACHE_COMPRESSED, $this->ttl);
|
|
|
|
|
if (!$result)
|
|
|
|
|
$result = $this->db->set($key, $data, MEMCACHE_COMPRESSED, $this->ttl);
|
|
|
|
|
return $result;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if ($this->type == 'apc') {
|
|
|
|
|
else if ($this->type == 'apc') {
|
|
|
|
|
if (apc_exists($key))
|
|
|
|
|
apc_delete($key);
|
|
|
|
|
return apc_store($key, $data, $this->ttl);
|
|
|
|
|
$result = apc_store($key, $data, $this->ttl);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// Update index
|
|
|
|
|
if ($index && $result) {
|
|
|
|
|
$this->load_index();
|
|
|
|
|
|
|
|
|
|
if (array_search($key, $this->index) === false) {
|
|
|
|
|
$this->index[] = $key;
|
|
|
|
|
$data = serialize($this->index);
|
|
|
|
|
$this->add_record($this->ikey(), $data);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return $result;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* Deletes entry from memcache/apc DB.
|
|
|
|
|