/**
* {@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);
}
}
}
private function generateItems(array $keys, $now)
{
$f = $this->createCacheItem;
foreach ($keys as $i => $key) {
try {
if (!($isHit = isset($this->expiries[$key]) && ($this->expiries[$key] >= $now || !$this->deleteItem($key)))) {
$this->values[$key] = $value = null;
} elseif (!$this->storeSerialized) {
$value = $this->values[$key];
} elseif ('b:0;' === ($value = $this->values[$key])) {
$value = false;
} elseif (false === ($value = unserialize($value))) {
$this->values[$key] = $value = null;
$isHit = false;
}
} catch (\Exception $e) {
CacheItem::log($this->logger, 'Failed to unserialize key "{key}"', array('key' => $key, 'exception' => $e));
$this->values[$key] = $value = null;
$isHit = false;
}
unset($keys[$i]);
(yield $key => $f($key, $value, $isHit));
}
foreach ($keys as $key) {
(yield $key => $f($key, null, false));
}
}
/**
* 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();
}
/**
* {@inheritdoc}
*/
public function commit()
{
$ok = true;
$byLifetime = $this->mergeByLifetime;
$byLifetime = $byLifetime($this->deferred, $this->namespace);
$retry = $this->deferred = array();
foreach ($byLifetime as $lifetime => $values) {
try {
$e = $this->doSave($values, $lifetime);
} catch (\Exception $e) {
}
if (true === $e || array() === $e) {
continue;
}
if (is_array($e) || 1 === count($values)) {
foreach (is_array($e) ? $e : array_keys($values) as $id) {
$ok = false;
$v = $values[$id];
$type = is_object($v) ? get_class($v) : gettype($v);
CacheItem::log($this->logger, 'Failed to save key "{key}" ({type})', array('key' => substr($id, strlen($this->namespace)), 'type' => $type, 'exception' => $e instanceof \Exception ? $e : null));
}
} else {
foreach ($values as $id => $v) {
$retry[$lifetime][] = $id;
}
}
}
// When bulk-save failed, retry each item individually
foreach ($retry as $lifetime => $ids) {
foreach ($ids as $id) {
try {
$v = $byLifetime[$lifetime][$id];
$e = $this->doSave(array($id => $v), $lifetime);
} catch (\Exception $e) {
}
if (true === $e || array() === $e) {
continue;
}
$ok = false;
$type = is_object($v) ? get_class($v) : gettype($v);
CacheItem::log($this->logger, 'Failed to save key "{key}" ({type})', array('key' => substr($id, strlen($this->namespace)), 'type' => $type, 'exception' => $e instanceof \Exception ? $e : null));
}
}
$this->deferred = array();
return $ok;
}
private function getId($key)
{
CacheItem::validateKey($key);
return $this->namespace . $key;
}
private function generateItems($items, &$keys)
{
$f = $this->createCacheItem;
try {
foreach ($items as $id => $value) {
$key = $keys[$id];
unset($keys[$id]);
(yield $key => $f($key, $value, true));
}
} catch (\Exception $e) {
CacheItem::log($this->logger, 'Failed to fetch requested items', array('keys' => array_values($keys), 'exception' => $e));
}
foreach ($keys as $key) {
(yield $key => $f($key, null, false));
}
}
/**
* {@inheritdoc}
*/
public function save(CacheItemInterface $item)
{
if (!$item instanceof CacheItem) {
return false;
}
$item = (array) $item;
$key = $item[CacheItem::CAST_PREFIX . 'key'];
$value = $item[CacheItem::CAST_PREFIX . 'value'];
$expiry = $item[CacheItem::CAST_PREFIX . 'expiry'];
if (null !== $expiry && $expiry <= time()) {
$this->deleteItem($key);
return true;
}
if ($this->storeSerialized) {
try {
$value = serialize($value);
} catch (\Exception $e) {
$type = is_object($value) ? get_class($value) : gettype($value);
CacheItem::log($this->logger, 'Failed to save key "{key}" ({type})', array('key' => $key, 'type' => $type, 'exception' => $e));
return false;
}
}
$this->values[$key] = $value;
$this->expiries[$key] = null !== $expiry ? $expiry : PHP_INT_MAX;
return true;
}
/**
* @dataProvider provideInvalidKey
* @expectedException Symfony\Component\Cache\Exception\InvalidArgumentException
* @expectedExceptionMessage Cache key
*/
public function testInvalidKey($key)
{
CacheItem::validateKey($key);
}
/**
* @dataProvider provideInvalidKey
* @expectedException \Symfony\Component\Cache\Exception\InvalidArgumentException
* @expectedExceptionMessage Cache tag
*/
public function testInvalidTag($tag)
{
$item = new CacheItem();
$item->tag($tag);
}
/**
* {@inheritdoc}
*/
public function commit()
{
$f = $this->mergeByLifetime;
$ko = array();
foreach ($f($this->deferred, $this->namespace) as $lifetime => $values) {
try {
if (true === ($ok = $this->doSave($values, $lifetime))) {
continue;
}
} catch (\Exception $e) {
$ok = false;
}
if (false === $ok) {
$ok = array_keys($values);
}
foreach ($ok as $id) {
$ko[$lifetime][] = array($id => $values[$id]);
}
}
$this->deferred = array();
$ok = true;
// When bulk-save failed, retry each item individually
foreach ($ko as $lifetime => $values) {
foreach ($values as $v) {
try {
$e = $this->doSave($v, $lifetime);
} catch (\Exception $e) {
}
if (true !== $e && array() !== $e) {
$ok = false;
foreach ($v as $key => $value) {
$type = is_object($value) ? get_class($value) : gettype($value);
CacheItem::log($this->logger, 'Failed to save key "{key}" ({type})', array('key' => $key, 'type' => $type, 'exception' => $e instanceof \Exception ? $e : null));
}
}
}
}
return $ok;
}
/**
* {@inheritdoc}
*/
public function save(CacheItemInterface $item)
{
if (!$item instanceof CacheItem) {
return false;
}
$item = (array) $item;
$key = $item[CacheItem::CAST_PREFIX . 'key'];
$value = $item[CacheItem::CAST_PREFIX . 'value'];
$lifetime = $item[CacheItem::CAST_PREFIX . 'lifetime'];
if (0 > $lifetime) {
return true;
}
if (is_object($value)) {
try {
$value = clone $value;
} catch (\Exception $e) {
$type = is_object($value) ? get_class($value) : gettype($value);
CacheItem::log($this->logger, 'Failed to clone key "{key}" ({type})', array('key' => $key, 'type' => $type, 'exception' => $e));
return false;
}
}
$this->values[$key] = $value;
$this->expiries[$key] = $lifetime ? $lifetime + time() : PHP_INT_MAX;
return true;
}
