331 lines
10 KiB
PHP
331 lines
10 KiB
PHP
<?php
|
|
|
|
/*
|
|
* This file is part of the Symfony package.
|
|
*
|
|
* (c) Fabien Potencier <fabien@symfony.com>
|
|
*
|
|
* For the full copyright and license information, please view the LICENSE
|
|
* file that was distributed with this source code.
|
|
*/
|
|
|
|
namespace Symfony\Component\Cache\Adapter;
|
|
|
|
use Symfony\Component\Cache\Exception\CacheException;
|
|
use Symfony\Component\Cache\Exception\InvalidArgumentException;
|
|
use Symfony\Component\Cache\PruneableInterface;
|
|
use Symfony\Component\Cache\Traits\FilesystemCommonTrait;
|
|
use Symfony\Component\VarExporter\VarExporter;
|
|
|
|
/**
|
|
* @author Piotr Stankowski <git@trakos.pl>
|
|
* @author Nicolas Grekas <p@tchwork.com>
|
|
* @author Rob Frawley 2nd <rmf@src.run>
|
|
*/
|
|
class PhpFilesAdapter extends AbstractAdapter implements PruneableInterface
|
|
{
|
|
use FilesystemCommonTrait {
|
|
doClear as private doCommonClear;
|
|
doDelete as private doCommonDelete;
|
|
}
|
|
|
|
private $includeHandler;
|
|
private $appendOnly;
|
|
private $values = [];
|
|
private $files = [];
|
|
|
|
private static $startTime;
|
|
private static $valuesCache = [];
|
|
|
|
/**
|
|
* @param $appendOnly Set to `true` to gain extra performance when the items stored in this pool never expire.
|
|
* Doing so is encouraged because it fits perfectly OPcache's memory model.
|
|
*
|
|
* @throws CacheException if OPcache is not enabled
|
|
*/
|
|
public function __construct(string $namespace = '', int $defaultLifetime = 0, string $directory = null, bool $appendOnly = false)
|
|
{
|
|
$this->appendOnly = $appendOnly;
|
|
self::$startTime = self::$startTime ?? $_SERVER['REQUEST_TIME'] ?? time();
|
|
parent::__construct('', $defaultLifetime);
|
|
$this->init($namespace, $directory);
|
|
$this->includeHandler = static function ($type, $msg, $file, $line) {
|
|
throw new \ErrorException($msg, 0, $type, $file, $line);
|
|
};
|
|
}
|
|
|
|
public static function isSupported()
|
|
{
|
|
self::$startTime = self::$startTime ?? $_SERVER['REQUEST_TIME'] ?? time();
|
|
|
|
return \function_exists('opcache_invalidate') && filter_var(\ini_get('opcache.enable'), \FILTER_VALIDATE_BOOLEAN) && (!\in_array(\PHP_SAPI, ['cli', 'phpdbg'], true) || filter_var(\ini_get('opcache.enable_cli'), \FILTER_VALIDATE_BOOLEAN));
|
|
}
|
|
|
|
/**
|
|
* @return bool
|
|
*/
|
|
public function prune()
|
|
{
|
|
$time = time();
|
|
$pruned = true;
|
|
$getExpiry = true;
|
|
|
|
set_error_handler($this->includeHandler);
|
|
try {
|
|
foreach ($this->scanHashDir($this->directory) as $file) {
|
|
try {
|
|
if (\is_array($expiresAt = include $file)) {
|
|
$expiresAt = $expiresAt[0];
|
|
}
|
|
} catch (\ErrorException $e) {
|
|
$expiresAt = $time;
|
|
}
|
|
|
|
if ($time >= $expiresAt) {
|
|
$pruned = ($this->doUnlink($file) || !file_exists($file)) && $pruned;
|
|
}
|
|
}
|
|
} finally {
|
|
restore_error_handler();
|
|
}
|
|
|
|
return $pruned;
|
|
}
|
|
|
|
/**
|
|
* {@inheritdoc}
|
|
*/
|
|
protected function doFetch(array $ids)
|
|
{
|
|
if ($this->appendOnly) {
|
|
$now = 0;
|
|
$missingIds = [];
|
|
} else {
|
|
$now = time();
|
|
$missingIds = $ids;
|
|
$ids = [];
|
|
}
|
|
$values = [];
|
|
|
|
begin:
|
|
$getExpiry = false;
|
|
|
|
foreach ($ids as $id) {
|
|
if (null === $value = $this->values[$id] ?? null) {
|
|
$missingIds[] = $id;
|
|
} elseif ('N;' === $value) {
|
|
$values[$id] = null;
|
|
} elseif (!\is_object($value)) {
|
|
$values[$id] = $value;
|
|
} elseif (!$value instanceof LazyValue) {
|
|
$values[$id] = $value();
|
|
} elseif (false === $values[$id] = include $value->file) {
|
|
unset($values[$id], $this->values[$id]);
|
|
$missingIds[] = $id;
|
|
}
|
|
if (!$this->appendOnly) {
|
|
unset($this->values[$id]);
|
|
}
|
|
}
|
|
|
|
if (!$missingIds) {
|
|
return $values;
|
|
}
|
|
|
|
set_error_handler($this->includeHandler);
|
|
try {
|
|
$getExpiry = true;
|
|
|
|
foreach ($missingIds as $k => $id) {
|
|
try {
|
|
$file = $this->files[$id] ?? $this->files[$id] = $this->getFile($id);
|
|
|
|
if (isset(self::$valuesCache[$file])) {
|
|
[$expiresAt, $this->values[$id]] = self::$valuesCache[$file];
|
|
} elseif (\is_array($expiresAt = include $file)) {
|
|
if ($this->appendOnly) {
|
|
self::$valuesCache[$file] = $expiresAt;
|
|
}
|
|
|
|
[$expiresAt, $this->values[$id]] = $expiresAt;
|
|
} elseif ($now < $expiresAt) {
|
|
$this->values[$id] = new LazyValue($file);
|
|
}
|
|
|
|
if ($now >= $expiresAt) {
|
|
unset($this->values[$id], $missingIds[$k], self::$valuesCache[$file]);
|
|
}
|
|
} catch (\ErrorException $e) {
|
|
unset($missingIds[$k]);
|
|
}
|
|
}
|
|
} finally {
|
|
restore_error_handler();
|
|
}
|
|
|
|
$ids = $missingIds;
|
|
$missingIds = [];
|
|
goto begin;
|
|
}
|
|
|
|
/**
|
|
* {@inheritdoc}
|
|
*/
|
|
protected function doHave(string $id)
|
|
{
|
|
if ($this->appendOnly && isset($this->values[$id])) {
|
|
return true;
|
|
}
|
|
|
|
set_error_handler($this->includeHandler);
|
|
try {
|
|
$file = $this->files[$id] ?? $this->files[$id] = $this->getFile($id);
|
|
$getExpiry = true;
|
|
|
|
if (isset(self::$valuesCache[$file])) {
|
|
[$expiresAt, $value] = self::$valuesCache[$file];
|
|
} elseif (\is_array($expiresAt = include $file)) {
|
|
if ($this->appendOnly) {
|
|
self::$valuesCache[$file] = $expiresAt;
|
|
}
|
|
|
|
[$expiresAt, $value] = $expiresAt;
|
|
} elseif ($this->appendOnly) {
|
|
$value = new LazyValue($file);
|
|
}
|
|
} catch (\ErrorException $e) {
|
|
return false;
|
|
} finally {
|
|
restore_error_handler();
|
|
}
|
|
if ($this->appendOnly) {
|
|
$now = 0;
|
|
$this->values[$id] = $value;
|
|
} else {
|
|
$now = time();
|
|
}
|
|
|
|
return $now < $expiresAt;
|
|
}
|
|
|
|
/**
|
|
* {@inheritdoc}
|
|
*/
|
|
protected function doSave(array $values, int $lifetime)
|
|
{
|
|
$ok = true;
|
|
$expiry = $lifetime ? time() + $lifetime : 'PHP_INT_MAX';
|
|
$allowCompile = self::isSupported();
|
|
|
|
foreach ($values as $key => $value) {
|
|
unset($this->values[$key]);
|
|
$isStaticValue = true;
|
|
if (null === $value) {
|
|
$value = "'N;'";
|
|
} elseif (\is_object($value) || \is_array($value)) {
|
|
try {
|
|
$value = VarExporter::export($value, $isStaticValue);
|
|
} catch (\Exception $e) {
|
|
throw new InvalidArgumentException(sprintf('Cache key "%s" has non-serializable "%s" value.', $key, get_debug_type($value)), 0, $e);
|
|
}
|
|
} elseif (\is_string($value)) {
|
|
// Wrap "N;" in a closure to not confuse it with an encoded `null`
|
|
if ('N;' === $value) {
|
|
$isStaticValue = false;
|
|
}
|
|
$value = var_export($value, true);
|
|
} elseif (!\is_scalar($value)) {
|
|
throw new InvalidArgumentException(sprintf('Cache key "%s" has non-serializable "%s" value.', $key, get_debug_type($value)));
|
|
} else {
|
|
$value = var_export($value, true);
|
|
}
|
|
|
|
$encodedKey = rawurlencode($key);
|
|
|
|
if ($isStaticValue) {
|
|
$value = "return [{$expiry}, {$value}];";
|
|
} elseif ($this->appendOnly) {
|
|
$value = "return [{$expiry}, static function () { return {$value}; }];";
|
|
} else {
|
|
// We cannot use a closure here because of https://bugs.php.net/76982
|
|
$value = str_replace('\Symfony\Component\VarExporter\Internal\\', '', $value);
|
|
$value = "namespace Symfony\Component\VarExporter\Internal;\n\nreturn \$getExpiry ? {$expiry} : {$value};";
|
|
}
|
|
|
|
$file = $this->files[$key] = $this->getFile($key, true);
|
|
// Since OPcache only compiles files older than the script execution start, set the file's mtime in the past
|
|
$ok = $this->write($file, "<?php //{$encodedKey}\n\n{$value}\n", self::$startTime - 10) && $ok;
|
|
|
|
if ($allowCompile) {
|
|
@opcache_invalidate($file, true);
|
|
@opcache_compile_file($file);
|
|
}
|
|
unset(self::$valuesCache[$file]);
|
|
}
|
|
|
|
if (!$ok && !is_writable($this->directory)) {
|
|
throw new CacheException(sprintf('Cache directory is not writable (%s).', $this->directory));
|
|
}
|
|
|
|
return $ok;
|
|
}
|
|
|
|
/**
|
|
* {@inheritdoc}
|
|
*/
|
|
protected function doClear(string $namespace)
|
|
{
|
|
$this->values = [];
|
|
|
|
return $this->doCommonClear($namespace);
|
|
}
|
|
|
|
/**
|
|
* {@inheritdoc}
|
|
*/
|
|
protected function doDelete(array $ids)
|
|
{
|
|
foreach ($ids as $id) {
|
|
unset($this->values[$id]);
|
|
}
|
|
|
|
return $this->doCommonDelete($ids);
|
|
}
|
|
|
|
protected function doUnlink(string $file)
|
|
{
|
|
unset(self::$valuesCache[$file]);
|
|
|
|
if (self::isSupported()) {
|
|
@opcache_invalidate($file, true);
|
|
}
|
|
|
|
return @unlink($file);
|
|
}
|
|
|
|
private function getFileKey(string $file): string
|
|
{
|
|
if (!$h = @fopen($file, 'r')) {
|
|
return '';
|
|
}
|
|
|
|
$encodedKey = substr(fgets($h), 8);
|
|
fclose($h);
|
|
|
|
return rawurldecode(rtrim($encodedKey));
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @internal
|
|
*/
|
|
class LazyValue
|
|
{
|
|
public $file;
|
|
|
|
public function __construct(string $file)
|
|
{
|
|
$this->file = $file;
|
|
}
|
|
}
|