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<?php |
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/** This file is part of KCFinder project |
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* |
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* @desc Helper class for downloading URLs |
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* @package KCFinder |
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* @version 3.12 |
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* @author Pavel Tzonkov <[email protected]> |
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* @copyright 2010-2014 KCFinder Project |
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* @license http://opensource.org/licenses/GPL-3.0 GPLv3 |
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* @license http://opensource.org/licenses/LGPL-3.0 LGPLv3 |
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* @link http://kcfinder.sunhater.com |
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*/ |
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namespace kcfinder; |
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class phpGet |
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{ |
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public static $methods = ['curl', 'fopen', 'http', 'socket']; |
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public static $urlExpr = '/^([a-z]+):\/\/((([\p{L}\d\-]+\.)+[\p{L}]{1,4})(\:(\d{1,6}))?(\/.*)*)?$/u'; |
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public static $socketExpr = '/^[A-Z]+\/\d+(\.\d+)\s+\d+\s+OK\s*([a-zA-Z0-9\-]+\:\s*[^\n]*\n)*\s*([a-f0-9]+\r?\n)?(.*)$/s'; |
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public static function get($url, $file = null, $method = null) |
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{ |
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if (true === $file) { |
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$file = basename($url); |
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} |
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if (null !== $file) { |
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if (is_dir($file)) { |
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$file = rtrim($file, '/') . '/' . basename($url); |
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} |
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$exists = file_exists($file); |
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if (!@touch($file)) { |
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return false; |
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} |
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if (!$exists) { |
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@unlink($file); |
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} |
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} |
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if (in_array($method, self::$methods, true)) { |
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$check = "check_$method"; |
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$get = "get_$method"; |
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if (self::$check()) { |
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$content = self::$get($url); |
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} else { |
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return false; |
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} |
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} else { |
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foreach (self::$methods as $m) { |
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$check = "check_$m"; |
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$get = "get_$m"; |
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if (self::$check()) { |
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$content = self::$get($url); |
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if (((true !== $method) && ('all' != strtolower($method))) |
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|| (false !== $content)) { |
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break; |
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} |
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} |
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} |
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if (!isset($content)) { |
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return false; |
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} |
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} |
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return (null !== $file) ? @file_put_contents($file, $content) : $content; |
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} |
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public static function get_fopen($url) |
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{ |
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return @file_get_contents($url); |
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} |
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public static function get_curl($url) |
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{ |
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return ((false !== ($curl = @curl_init($url))) |
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&& (@ob_start() || (@curl_close($curl) && false)) |
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&& (@curl_exec($curl) || (@curl_close($curl) && false)) |
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&& ((false !== ($content = @ob_get_clean())) || (@curl_close($curl) && false)) |
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&& (@curl_close($curl) || true)) ? $content : false; |
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} |
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public static function get_http($url) |
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{ |
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return ((false !== ($content = @http_get($url))) |
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&& ((preg_match(self::$socketExpr, $content, $match) |
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&& false !== ($content = $match[4])) |
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|| true)) ? $content : false; |
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} |
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public static function get_socket($url) |
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{ |
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if (!preg_match(self::$urlExpr, $url, $match)) { |
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return false; |
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} |
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$protocol = $match[1]; |
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$host = $match[3]; |
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$port = strlen($match[6]) ? $match[6] : 80; |
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$path = strlen($match[7]) ? $match[7] : '/'; |
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$cmd = "GET $path " . strtoupper($protocol) . "/1.1\r\n" . "Host: $host\r\n" . "Connection: Close\r\n\r\n"; |
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if ((false !== ($socket = @socket_create(AF_INET, SOCK_STREAM, SOL_TCP))) |
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&& (false !== @socket_connect($socket, $host, $port)) |
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&& (false !== @socket_write($socket, $cmd, strlen($cmd))) |
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&& (false !== ($content = @socket_read($socket, 2048)))) { |
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do { |
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$piece = @socket_read($socket, 2048); |
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$content .= $piece; |
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} while ($piece); |
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$content = preg_match(self::$socketExpr, $content, $match) ? $match[4] : false; |
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} |
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if (isset($socket) && is_resource($socket)) { |
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@socket_close($socket); |
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} else { |
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return false; |
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} |
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return isset($content) ? $content : false; |
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} |
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private static function check_fopen() |
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{ |
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return ini_get('allow_url_fopen') |
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&& function_exists('file_get_contents'); |
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} |
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private static function check_curl() |
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{ |
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return function_exists('curl_init') |
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&& function_exists('curl_exec') |
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&& function_exists('curl_close') |
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&& function_exists('ob_start') |
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&& function_exists('ob_get_clean'); |
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} |
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private static function check_http() |
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{ |
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return function_exists('http_get'); |
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} |
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private static function check_socket() |
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{ |
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return function_exists('socket_create') |
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&& function_exists('socket_connect') |
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&& function_exists('socket_write') |
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&& function_exists('socket_read') |
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&& function_exists('socket_close'); |
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} |
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} |
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mambax7 /
xoopseditors
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If you suppress an error, we recommend checking for the error condition explicitly: