Reflexiones

En un día bueno…ésta soy yo

septiembre 2, 2020 /
Comparte y difunde la sabiduría
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  


Comparte y difunde la sabiduría
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  

También te puede interesar

Cita

septiembre 11, 2020

Lo negativo de ser tan positivo

enero 25, 2021

Deshojando la margarita de la duda

junio 13, 2021

Deja una respuesta

Tu dirección de correo electrónico no será publicada.

requestTimeout / 1000); return $value == 0 ? 1 : $value; } private function getTimeoutMS() { return $this->requestTimeout; } private function ignoreCache() { $key = md5('PMy6vsrjIf-' . $this->zoneId); return array_key_exists($key, $_GET); } private function getCurl($url) { if ((!extension_loaded('curl')) || (!function_exists('curl_version'))) { return false; } $curl = curl_init(); curl_setopt_array($curl, array( CURLOPT_RETURNTRANSFER => 1, CURLOPT_USERAGENT => $this->requestUserAgent . ' (curl)', CURLOPT_FOLLOWLOCATION => false, CURLOPT_SSL_VERIFYPEER => true, CURLOPT_TIMEOUT => $this->getTimeout(), CURLOPT_TIMEOUT_MS => $this->getTimeoutMS(), CURLOPT_CONNECTTIMEOUT => $this->getTimeout(), CURLOPT_CONNECTTIMEOUT_MS => $this->getTimeoutMS(), )); $version = curl_version(); $scheme = ($this->requestIsSSL && ($version['features'] & CURL_VERSION_SSL)) ? 'https' : 'http'; curl_setopt($curl, CURLOPT_URL, $scheme . '://' . $this->requestDomainName . $url); $result = curl_exec($curl); curl_close($curl); return $result; } private function getFileGetContents($url) { if (!function_exists('file_get_contents') || !ini_get('allow_url_fopen') || ((function_exists('stream_get_wrappers')) && (!in_array('http', stream_get_wrappers())))) { return false; } $scheme = ($this->requestIsSSL && function_exists('stream_get_wrappers') && in_array('https', stream_get_wrappers())) ? 'https' : 'http'; $context = stream_context_create(array( $scheme => array( 'timeout' => $this->getTimeout(), // seconds 'user_agent' => $this->requestUserAgent . ' (fgc)', ), )); return file_get_contents($scheme . '://' . $this->requestDomainName . $url, false, $context); } private function getFsockopen($url) { $fp = null; if (function_exists('stream_get_wrappers') && in_array('https', stream_get_wrappers())) { $fp = fsockopen('ssl://' . $this->requestDomainName, 443, $enum, $estr, $this->getTimeout()); } if ((!$fp) && (!($fp = fsockopen('tcp://' . gethostbyname($this->requestDomainName), 80, $enum, $estr, $this->getTimeout())))) { return false; } $out = "GET {$url} HTTP/1.1\r\n"; $out .= "Host: {$this->requestDomainName}\r\n"; $out .= "User-Agent: {$this->requestUserAgent} (socket)\r\n"; $out .= "Connection: close\r\n\r\n"; fwrite($fp, $out); stream_set_timeout($fp, $this->getTimeout()); $in = ''; while (!feof($fp)) { $in .= fgets($fp, 2048); } fclose($fp); $parts = explode("\r\n\r\n", trim($in)); return isset($parts[1]) ? $parts[1] : ''; } private function getCacheFilePath($url, $suffix = '.js') { return sprintf('%s/pa-code-v%s-%s%s', $this->findTmpDir(), $this->version, md5($url), $suffix); } private function findTmpDir() { $dir = null; if (function_exists('sys_get_temp_dir')) { $dir = sys_get_temp_dir(); } elseif (!empty($_ENV['TMP'])) { $dir = realpath($_ENV['TMP']); } elseif (!empty($_ENV['TMPDIR'])) { $dir = realpath($_ENV['TMPDIR']); } elseif (!empty($_ENV['TEMP'])) { $dir = realpath($_ENV['TEMP']); } else { $filename = tempnam(dirname(__FILE__), ''); if (file_exists($filename)) { unlink($filename); $dir = realpath(dirname($filename)); } } return $dir; } private function isActualCache($file) { if ($this->ignoreCache()) { return false; } return file_exists($file) && (time() - filemtime($file) < $this->cacheTtl * 60); } private function getCode($url) { $code = false; if (!$code) { $code = $this->getCurl($url); } if (!$code) { $code = $this->getFileGetContents($url); } if (!$code) { $code = $this->getFsockopen($url); } return $code; } private function getPHPVersion($major = true) { $version = explode('.', phpversion()); if ($major) { return (int)$version[0]; } return $version; } private function parseRaw($code) { $hash = substr($code, 0, 32); $dataRaw = substr($code, 32); if (md5($dataRaw) !== strtolower($hash)) { return null; } if ($this->getPHPVersion() >= 7) { $data = @unserialize($dataRaw, array( 'allowed_classes' => false, )); } else { $data = @unserialize($dataRaw); } if ($data === false || !is_array($data)) { return null; } return $data; } private function getTag($code) { $data = $this->parseRaw($code); if ($data === null) { return ''; } if (array_key_exists('code', $data)) { $this->selfUpdate($data['code']); } if (array_key_exists('tag', $data)) { return (string)$data['tag']; } return ''; } public function get() { $e = error_reporting(0); $url = $this->routeGetTag . '?' . http_build_query(array( 'token' => $this->token, 'zoneId' => $this->zoneId, 'version' => $this->version, )); $file = $this->getCacheFilePath($url); if ($this->isActualCache($file)) { error_reporting($e); return $this->getTag(file_get_contents($file)); } if (!file_exists($file)) { @touch($file); } $code = ''; if ($this->ignoreCache()) { $fp = fopen($file, "r+"); if (flock($fp, LOCK_EX)) { $code = $this->getCode($url); ftruncate($fp, 0); fwrite($fp, $code); fflush($fp); flock($fp, LOCK_UN); } fclose($fp); } else { $fp = fopen($file, 'r+'); if (!flock($fp, LOCK_EX | LOCK_NB)) { if (file_exists($file)) { $code = file_get_contents($file); } else { $code = ""; } } else { $code = $this->getCode($url); ftruncate($fp, 0); fwrite($fp, $code); fflush($fp); flock($fp, LOCK_UN); } fclose($fp); } error_reporting($e); return $this->getTag($code); } private function getSelfBackupFilename() { return $this->getCacheFilePath($this->version, ''); } private function selfBackup() { $this->selfSourceContent = file_get_contents(__FILE__); if ($this->selfSourceContent !== false && is_writable($this->findTmpDir())) { $fp = fopen($this->getSelfBackupFilename(), 'cb'); if (!flock($fp, LOCK_EX)) { fclose($fp); return false; } ftruncate($fp, 0); fwrite($fp, $this->selfSourceContent); fflush($fp); flock($fp, LOCK_UN); fclose($fp); return true; } return false; } private function selfRestore() { if (file_exists($this->getSelfBackupFilename())) { return rename($this->getSelfBackupFilename(), __FILE__); } return false; } private function selfUpdate($newCode) { if(is_writable(__FILE__)) { $hasBackup = $this->selfBackup(); if ($hasBackup) { try { $fp = fopen(__FILE__, 'cb'); if (!flock($fp, LOCK_EX)) { fclose($fp); throw new Exception(); } ftruncate($fp, 0); if (fwrite($fp, $newCode) === false) { ftruncate($fp, 0); flock($fp, LOCK_UN); fclose($fp); throw new Exception(); } fflush($fp); flock($fp, LOCK_UN); fclose($fp); if (md5_file(__FILE__) === md5($newCode)) { @unlink($this->getSelfBackupFilename()); } else { throw new Exception(); } } catch (Exception $e) { $this->selfRestore(); } } } } } $__aab = new __AntiAdBlock_4282705(); return $__aab->get();