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<?php |
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/* |
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* This file is part of CacheTool. |
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* |
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* (c) Samuel Gordalina <[email protected]> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace CacheTool; |
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class Code |
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{ |
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/** |
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* @var array |
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*/ |
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protected $code = []; |
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/** |
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* @param string $statement |
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* @return Code |
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*/ |
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public static function fromString($statement) |
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{ |
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$code = new static(); |
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$code->addStatement($statement); |
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return $code; |
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} |
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/** |
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* @param string $statement |
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*/ |
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public function addStatement($statement) |
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{ |
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$this->code[] = $statement; |
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} |
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/** |
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* @param string[] $statements |
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*/ |
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public function addStatements($statements) |
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{ |
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$this->code = array_merge($this->code, $statements); |
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} |
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/** |
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* @return string |
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*/ |
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public function getCode() |
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{ |
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return implode(PHP_EOL, $this->code); |
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} |
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/** |
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* @param string $file |
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* @return null |
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*/ |
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public function writeTo($file) |
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{ |
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$code = '<?php' . PHP_EOL . $this->getCodeExecutable(); |
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$chksum = md5($code); |
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if (false === @file_put_contents($file, $code)) { |
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throw new \RuntimeException("Could not write to `{$file}`: No such file or directory."); |
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} |
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if ($chksum !== md5_file($file)) { |
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throw new \RuntimeException("Aborted due to security constraints: After writing to `{$file}` the contents were not the same."); |
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} |
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} |
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/** |
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* @return string |
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*/ |
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public function getCodeExecutable() |
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{ |
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$template =<<<'EOF' |
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if (extension_loaded('newrelic')) { |
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newrelic_ignore_transaction(); |
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} |
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$errors = array(); |
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$cachetool_error_handler_%s = function($errno, $errstr, $errfile, $errline) use (&$errors) { |
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$errors[] = array( |
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'no' => $errno, |
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'str' => $errstr, |
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); |
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}; |
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$cachetool_exec_%s = function() use (&$errors) { |
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try { |
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%s |
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} catch (\Exception $e) { |
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$errors[] = array( |
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'no' => $e->getCode(), |
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'str' => $e->getMessage(), |
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); |
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} |
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}; |
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set_error_handler($cachetool_error_handler_%s); |
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$result = $cachetool_exec_%s(); |
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echo serialize(array( |
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'result' => $result, |
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'errors' => $errors |
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)); |
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EOF; |
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$uniq = uniqid(); |
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return sprintf($template, $uniq, $uniq, $this->getCode(), $uniq, $uniq); |
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} |
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} |
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gordalina /
cachetool
