/**
* Test if a cache is available or not (for the given id)
*
* @param string $id cache id
* @return mixed false (a cache is not available) or "last modified" timestamp (int) of the available cache record
*/
public function test($id)
{
$tmp = zend_shm_cache_fetch($this->_options['namespace'] . '::' . $id);
if ($tmp !== null && $tmp !== false) {
return true;
}
return false;
}
public function fetch($key)
{
$data = zend_shm_cache_fetch("MongoObject::{$key}");
if ($data === false) {
$data = null;
}
return $data;
}
protected function _get($key)
{
$data = zend_shm_cache_fetch($this->key($key));
if ($data === null) {
return self::NOT_FOUND;
}
return $data;
}
/**
* @param \Psr\Cache\CacheItemInterface $item
* @return mixed
*/
protected function driverRead(CacheItemInterface $item)
{
$data = zend_shm_cache_fetch($item->getKey());
if ($data === false) {
return null;
}
return $data;
}
/**
* @see SugarCacheAbstract::_getExternal()
*/
protected function _getExternal($key)
{
$raw_cache_value = zend_shm_cache_fetch($key);
if ($raw_cache_value === false) {
return null;
}
return is_string($raw_cache_value) ? unserialize($raw_cache_value) : $raw_cache_value;
}
function get($key)
{
$value = parent::get($key);
if (!is_null($value)) {
return $value;
}
$raw_cache_value = zend_shm_cache_fetch($this->_realKey($key));
$cache_value = is_string($raw_cache_value) ? unserialize($raw_cache_value) : $raw_cache_value;
return $this->_processGet($key, $cache_value);
}
/**
* 获取远程URL,并带缓存$url是URL,time是缓时间,秒为单位,默认300
*/
public static function geturl($url, $time = 300)
{
$md5 = md5($url);
$cached = zend_shm_cache_fetch($md5);
//从内存缓存读取
if ($cached === false || !empty($_GET['update'])) {
$cached = file_get_contents($url);
zend_shm_cache_store($md5, $cached, $time);
//存至内存，最后一个是过期时间，单位为秒
return $cached;
} else {
return $cached;
}
}
/**
* {@inheritdoc}
*/
protected function _doContains($id)
{
return zend_shm_cache_fetch($id) !== FALSE;
}
/**
* Get a cache variable
*
* Retrieve a variable from the cache and return it's
* value to the user.
*
* @param string $name The name of the cache variable to retrieve.
*
* @return mixed The value of the retrieved variable or false if
* variable isn't found.
*/
public function get($name)
{
return zend_shm_cache_fetch($name);
}
/**
* Fetch multiple items from Zend Data SHM Cache
*
* @param array $internalKeys
* @return array All found items
* @throws Exception\RuntimeException
*/
protected function zdcFetchMulti(array $internalKeys)
{
$items = zend_shm_cache_fetch($internalKeys);
if ($items === false) {
throw new Exception\RuntimeException("zend_shm_cache_fetch(<array>) failed");
}
return $items;
}
public function get($key)
{
$safeKey = $this->makeKey($key);
$ret = @zend_shm_cache_fetch($safeKey);
return $ret;
}
/**
* Gets the value from the cache specified by key, so long as it is not older than ttl seconds.
* - It may often "miss", so shouldn't be depended on.
* - It supports the same as cache_put_data().
*
* @param string $key
* @param int $ttl = 120
*/
function cache_get_data($key, $ttl = 120)
{
global $cache_memcached, $memcached, $cache_hits, $cache_count, $db_show_debug;
global $cache_accelerator, $cache_enable, $expired;
if (empty($cache_enable)) {
return;
}
$cache_count = isset($cache_count) ? $cache_count + 1 : 1;
if (isset($db_show_debug) && $db_show_debug === true) {
$cache_hits[$cache_count] = array('k' => $key, 'd' => 'get');
$st = microtime(true);
}
$key = cache_get_key($key);
switch ($cache_accelerator) {
case 'memcached':
// Okay, let's go for it memcached!
if ((function_exists('memcache_get') || function_exists('memcached_get')) && !empty($cache_memcached)) {
// Not connected yet?
if (empty($memcached)) {
get_memcached_server();
}
if (!$memcached) {
return null;
}
$value = function_exists('memcache_get') ? memcache_get($memcached, $key) : memcached_get($memcached, $key);
}
break;
case 'eaccelerator':
// Again, eAccelerator.
if (function_exists('eaccelerator_get')) {
$value = eaccelerator_get($key);
}
break;
case 'mmcache':
// The older, but ever-stable, Turck MMCache...
if (function_exists('mmcache_get')) {
$value = mmcache_get($key);
}
break;
case 'apc':
case 'apcu':
// This is the free APC or APCu from PECL.
if (function_exists('apc_fetch')) {
$value = apc_fetch($key . 'elkarte');
}
break;
case 'zend':
// Zend's pricey stuff.
if (function_exists('zend_shm_cache_fetch')) {
$value = zend_shm_cache_fetch('ELK::' . $key);
} elseif (function_exists('output_cache_get')) {
$value = output_cache_get($key, $ttl);
}
break;
case 'xcache':
if (function_exists('xcache_get') && ini_get('xcache.var_size') > 0) {
$value = xcache_get($key);
}
break;
default:
// Otherwise it's ElkArte data!
if (file_exists(CACHEDIR . '/data_' . $key . '.php') && filesize(CACHEDIR . '/data_' . $key . '.php') > 10) {
// php will cache file_exists et all, we can't 100% depend on its results so proceed with caution
@(include CACHEDIR . '/data_' . $key . '.php');
if (!empty($expired) && isset($value)) {
@unlink(CACHEDIR . '/data_' . $key . '.php');
unset($value);
}
}
break;
}
if (isset($db_show_debug) && $db_show_debug === true) {
$cache_hits[$cache_count]['t'] = microtime(true) - $st;
$cache_hits[$cache_count]['s'] = isset($value) ? strlen($value) : 0;
}
if (function_exists('call_integration_hook') && isset($value)) {
call_integration_hook('cache_get_data', array($key, $ttl, $value));
}
return empty($value) ? null : @unserialize($value);
}
/**
* {@inheritdoc}
*/
protected function doContains($id)
{
return false !== zend_shm_cache_fetch($id);
}
/**
* {@inheritdoc}
*/
public function get($key)
{
return zend_shm_cache_fetch($key);
}
/**
* Stores a value identified by a key into cache if the cache does not contain this key.
* This is the implementation of the method declared in the parent class.
*
* @param string $key the key identifying the value to be cached
* @param string $value the value to be cached
* @param integer $duration the number of seconds in which the cached value will expire. 0 means never expire.
* @return boolean true if the value is successfully stored into cache, false otherwise
*/
protected function addValue($key, $value, $duration)
{
return zend_shm_cache_fetch($key) === null ? $this->setValue($key, $value, $duration) : false;
}
/**
* Gets the value from the cache specified by key, so long as it is not older than ttl seconds.
* - It may often "miss", so shouldn't be depended on.
* - It supports the same as cache_put_data().
*
* @param string $key
* @param int $ttl = 120
* @return string
*/
function cache_get_data($key, $ttl = 120)
{
global $boardurl, $sourcedir, $modSettings, $memcached;
global $cache_hits, $cache_count, $db_show_debug, $cachedir;
global $cache_accelerator, $cache_enable;
if (empty($cache_enable)) {
return;
}
$cache_count = isset($cache_count) ? $cache_count + 1 : 1;
if (isset($db_show_debug) && $db_show_debug === true) {
$cache_hits[$cache_count] = array('k' => $key, 'd' => 'get');
$st = microtime();
}
$key = md5($boardurl . filemtime($sourcedir . '/Load.php')) . '-SMF-' . strtr($key, ':/', '-_');
switch ($cache_accelerator) {
case 'memcache':
// Okay, let's go for it memcached!
if ((function_exists('memcache_get') || function_exists('memcached_get')) && isset($modSettings['cache_memcached']) && trim($modSettings['cache_memcached']) != '') {
// Not connected yet?
if (empty($memcached)) {
get_memcached_server();
}
if (!$memcached) {
return null;
}
$value = function_exists('memcache_get') ? memcache_get($cache['connection'], $key) : memcached_get($cache['connection'], $key);
}
break;
case 'eaccelerator':
// Again, eAccelerator.
if (function_exists('eaccelerator_get')) {
$value = eaccelerator_get($key);
}
break;
case 'mmcache':
// The older, but ever-stable, Turck MMCache...
if (function_exists('mmcache_get')) {
$value = mmcache_get($key);
}
break;
case 'apc':
// This is the free APC from PECL.
if (function_exists('apc_fetch')) {
$value = apc_fetch($key . 'smf');
}
break;
case 'zend':
// Zend's pricey stuff.
if (function_exists('zend_shm_cache_fetch')) {
$value = zend_shm_cache_fetch('SMF::' . $key, $ttl);
} elseif (function_exists('output_cache_get')) {
$value = output_cache_get($key, $ttl);
}
break;
case 'xcache':
if (function_exists('xcache_get') && ini_get('xcache.var_size') > 0) {
$value = xcache_get($key);
}
break;
default:
// Otherwise it's SMF data!
if (file_exists($cachedir . '/data_' . $key . '.php') && filesize($cachedir . '/data_' . $key . '.php') > 10) {
// php will cache file_exists et all, we can't 100% depend on its results so proceed with caution
@(include $cachedir . '/data_' . $key . '.php');
if (!empty($expired) && isset($value)) {
@unlink($cachedir . '/data_' . $key . '.php');
unset($value);
}
}
break;
}
if (isset($db_show_debug) && $db_show_debug === true) {
$cache_hits[$cache_count]['t'] = array_sum(explode(' ', microtime())) - array_sum(explode(' ', $st));
$cache_hits[$cache_count]['s'] = isset($value) ? strlen($value) : 0;
}
if (function_exists('call_integration_hook')) {
call_integration_hook('cache_get_data', array(&$key, &$ttl, &$value));
}
return empty($value) ? null : @unserialize($value);
}
/**
* Stores a value identified by a key into cache if the cache does not contain this key.
* This is the implementation of the method declared in the parent class.
*
* @param string $key the key identifying the value to be cached
* @param string $value the value to be cached
* @param integer $expire the number of seconds in which the cached value will expire. 0 means never expire.
* @return boolean true if the value is successfully stored into cache, false otherwise
*/
protected function addValue($key, $value, $expire)
{
return NULL === zend_shm_cache_fetch($key) ? $this->setValue($key, $value, $expire) : false;
}
/**
* Read datas with $uid key
* @param mixed $uid
* @return mixed
*/
public function read($uid)
{
return zend_shm_cache_fetch($uid);
}
function Aspis_create_function($params, $code)
{
global $ASPIS_PIPE_SEND;
global $ASPIS_PIPE_RECEIVE;
global $ASPIS_CATEGORIES_FILE;
//is it there in the cache?
if (isset($_SERVER[0]['HTTP_USER_AGENT'])) {
$dynamic_functions = zend_shm_cache_fetch('wp_dynamic_functions');
if ($dynamic_functions !== false) {
if (isset($dynamic_functions[$code[0]]) && !empty($dynamic_functions[$code[0]])) {
// echo "Dynamic function <br>$code[0]<br> is in cache!<br>";
return create_function($params[0], $dynamic_functions[$code[0]]);
}
}
}
$r = posix_mkfifo($ASPIS_PIPE_SEND, 0777);
if (!$r) {
unlink($ASPIS_PIPE_SEND);
$r = posix_mkfifo($ASPIS_PIPE_SEND, 0777);
if (!$r) {
die("Could not create pipe {$ASPIS_PIPE_SEND}\n");
}
}
$r = posix_mkfifo($ASPIS_PIPE_RECEIVE, 0777);
if (!$r) {
unlink($ASPIS_PIPE_RECEIVE);
$r = posix_mkfifo($ASPIS_PIPE_RECEIVE, 0777);
if (!$r) {
die("Could not create pipe {$ASPIS_PIPE_RECEIVE}\n");
}
}
if (!$r) {
die("Could not create pipe {$ASPIS_PIPE}\n");
}
exec("aspis -in {$ASPIS_PIPE_SEND} -out {$ASPIS_PIPE_RECEIVE} -categories {$ASPIS_CATEGORIES_FILE} -mode online >/dev/null &", $a);
$handle_send = fopen($ASPIS_PIPE_SEND, 'w');
fwrite($handle_send, "<?php " . $code[0]);
fclose($handle_send);
$a = file($ASPIS_PIPE_RECEIVE);
array_shift($a);
unlink($ASPIS_PIPE_SEND);
unlink($ASPIS_PIPE_RECEIVE);
$rewritten = implode($a);
//store it to the cache
if (isset($_SERVER[0]['HTTP_USER_AGENT'])) {
$dynamic_functions = zend_shm_cache_fetch('wp_dynamic_functions');
// echo "Storing rewritten version: $rewritten<br>";
if ($dynamic_functions !== false) {
$dynamic_functions[$code[0]] = $rewritten;
zend_shm_cache_store('wp_dynamic_functions', $dynamic_functions, 24 * 3600);
} else {
$dynamic_functions = array($code[0] => $rewritten);
zend_shm_cache_store('wp_dynamic_functions', $dynamic_functions, 24 * 3600);
}
}
return array(create_function($params[0], $rewritten), false);
}
protected function getValue($key)
{
return zend_shm_cache_fetch($key);
}
function pmxCacheGet($key, $useMember = false, $null_array = false)
{
global $PortaMx_cache, $user_info;
$st = microtime(true);
$key = $PortaMx_cache['key'] . ($useMember ? '-' . implode('_', $user_info['groups']) : '') . '-' . $key;
if (function_exists('zend_shm_cache_fetch')) {
$value = zend_shm_cache_fetch('PMX::' . $key);
} elseif (function_exists('output_cache_get')) {
$value = output_cache_get($key, $ttl);
}
if (!empty($value)) {
$PortaMx_cache['vals']['loaded'] += strlen($value);
$PortaMx_cache['vals']['time'] += microtime(true) - $st;
return unserialize($value);
}
$PortaMx_cache['vals']['time'] += microtime(true) - $st;
return empty($null_array) ? null : array();
}
/**
* Fetch data
*
* @param string $id Cache id
*/
protected function _fetch($id)
{
return zend_shm_cache_fetch($this->_options['namespace'] . '::' . $id);
}
function load_taint_categories()
{
global $taint_categories;
$read_file = true;
if (isset($_SERVER[0]['HTTP_USER_AGENT'])) {
$taint_categories = zend_shm_cache_fetch('taint_categories');
if ($taint_categories !== false) {
$read_file = false;
}
}
if ($read_file) {
global $ASPIS_CATEGORIES_FILE;
$file = file($ASPIS_CATEGORIES_FILE, FILE_USE_INCLUDE_PATH | FILE_IGNORE_NEW_LINES);
for ($i = 0; $i < count($file); $i++) {
$line = $file[$i];
if ($line == "begin") {
$tc = array(array(), array());
$reading_sanitisation = 0;
$reading_sinks = 0;
$reading_sources = 0;
while (1) {
$line = $file[++$i];
if ($line == "end") {
break;
} else {
if ($line == ">sanitisation") {
$reading_sanitisation = 1;
continue;
} else {
if ($line == ">sinks") {
$reading_sanitisation = 0;
$reading_sinks = 1;
continue;
} else {
if ($line == ">sources") {
$reading_sanitisation = 0;
$reading_sinks = 0;
$reading_sources = 1;
continue;
}
}
}
}
if ($reading_sanitisation) {
$tc[0][$line] = 1;
} else {
if ($reading_sinks || $reading_sources) {
$tok1 = strtok($line, "->");
$tok2 = strtok("->");
if ($tok1 != "" && $tok2 != "") {
if ($reading_sinks) {
$tc[1][$tok1] = $tok2;
} else {
if ($reading_sources) {
$tc[2][$tok1] = $tok2;
}
}
} else {
die("Invalid guard in the category file");
}
}
}
}
$taint_categories[] = $tc;
}
}
if (isset($_SERVER[0]['HTTP_USER_AGENT'])) {
zend_shm_cache_store('taint_categories', $taint_categories, 24 * 3600);
}
}
}
