/**
* {@inheritdoc}
*/
protected function filterInvalidatedKeys(array &$keys)
{
$tags = $invalids = array();
foreach ($keys as $i => $key) {
CacheItem::validateKey($key);
foreach ($this->redis->hGetAll($this->namespace . $key . ':tags') as $tag => $version) {
$tags[$this->namespace . 'tag:' . $tag][$version][$i] = $key;
}
}
if ($tags) {
$j = 0;
$versions = $this->redis->mGet(array_keys($tags));
foreach ($tags as $tag => $version) {
$version = $versions[$j++];
unset($tags[$tag][(int) $version]);
foreach ($tags[$tag] as $version) {
foreach ($version as $i => $key) {
$invalids[] = $key;
unset($keys[$i]);
}
}
}
}
return $invalids;
}
public function __construct($namespace = '', $defaultLifetime = 0, $version = null)
{
if (!static::isSupported()) {
throw new CacheException('APCu is not enabled');
}
if ('cli' === PHP_SAPI) {
ini_set('apc.use_request_time', 0);
}
parent::__construct($namespace, $defaultLifetime);
if (null !== $version) {
CacheItem::validateKey($version);
if (!apcu_exists($version . ':' . $namespace)) {
$this->clear($namespace);
apcu_add($version . ':' . $namespace, null);
}
}
}
/**
* {@inheritdoc}
*/
public function deleteItem($key)
{
CacheItem::validateKey($key);
unset($this->values[$key], $this->expiries[$key]);
return true;
}
/**
* Store an array of cached values.
*
* @param array $values The cached values
*/
public function warmUp(array $values)
{
if (file_exists($this->file)) {
if (!is_file($this->file)) {
throw new InvalidArgumentException(sprintf('Cache path exists and is not a file: %s.', $this->file));
}
if (!is_writable($this->file)) {
throw new InvalidArgumentException(sprintf('Cache file is not writable: %s.', $this->file));
}
} else {
$directory = dirname($this->file);
if (!is_dir($directory) && !@mkdir($directory, 0777, true)) {
throw new InvalidArgumentException(sprintf('Cache directory does not exist and cannot be created: %s.', $directory));
}
if (!is_writable($directory)) {
throw new InvalidArgumentException(sprintf('Cache directory is not writable: %s.', $directory));
}
}
$dump = <<<'EOF'
<?php
// This file has been auto-generated by the Symfony Cache Component.
return array(
EOF;
foreach ($values as $key => $value) {
CacheItem::validateKey(is_int($key) ? (string) $key : $key);
if (null === $value || is_object($value)) {
try {
$value = serialize($value);
} catch (\Exception $e) {
throw new InvalidArgumentException(sprintf('Cache key "%s" has non-serializable %s value.', $key, get_class($value)), 0, $e);
}
} elseif (is_array($value)) {
try {
$serialized = serialize($value);
$unserialized = unserialize($serialized);
} catch (\Exception $e) {
throw new InvalidArgumentException(sprintf('Cache key "%s" has non-serializable array value.', $key), 0, $e);
}
// Store arrays serialized if they contain any objects or references
if ($unserialized !== $value || false !== strpos($serialized, ';R:') && preg_match('/;R:[1-9]/', $serialized)) {
$value = $serialized;
}
} elseif (is_string($value)) {
// Serialize strings if they could be confused with serialized objects or arrays
if ('N;' === $value || isset($value[2]) && ':' === $value[1]) {
$value = serialize($value);
}
} elseif (!is_scalar($value)) {
throw new InvalidArgumentException(sprintf('Cache key "%s" has non-serializable %s value.', $key, gettype($value)));
}
$dump .= var_export($key, true) . ' => ' . var_export($value, true) . ",\n";
}
$dump .= "\n);\n";
$dump = str_replace("' . \"\\0\" . '", "", $dump);
$tmpFile = uniqid($this->file);
file_put_contents($tmpFile, $dump);
@chmod($tmpFile, 0666);
unset($serialized, $unserialized, $value, $dump);
@rename($tmpFile, $this->file);
$this->values = (include $this->file) ?: array();
}
private function getId($key)
{
CacheItem::validateKey($key);
return $this->namespace . $key;
}
private function getId($key)
{
CacheItem::validateKey($key);
if (null === $this->maxIdLength) {
return $this->namespace . $key;
}
if (strlen($id = $this->namespace . $key) > $this->maxIdLength) {
$id = $this->namespace . substr_replace(base64_encode(md5($key, true)), ':', -2);
}
return $id;
}
/**
* @dataProvider provideInvalidKey
* @expectedException Symfony\Component\Cache\Exception\InvalidArgumentException
* @expectedExceptionMessage Cache key
*/
public function testInvalidKey($key)
{
CacheItem::validateKey($key);
}
