* * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see . */ date_default_timezone_set('UTC'); function str_to_gmdate($date) { $timestamp = strtotime($date); return epoch_to_gmdate($timestamp); } function epoch_to_gmdate($timestamp) { return gmdate('D, d M Y H:i:s', $timestamp) . ' GMT'; } class Tweeper { private $USER_AGENT = "Mozilla/5.0 (Windows NT 6.1; rv:22.0) Gecko/20130405 Firefox/22.0"; public function __construct($stylesheet) { $stylesheet_contents = $this->get_contents($stylesheet); $xslDoc = new DOMDocument(); $xslDoc->loadXML($stylesheet_contents); $this->xsltProcessor = new XSLTProcessor(); $this->xsltProcessor->registerPHPFunctions(); $this->xsltProcessor->importStylesheet($xslDoc); } private function get_contents($uri) { # https://www.wjsams.com/c/docs/Wiki/Php-HowToSetUserAgentOnFileGetContents $opts = array( 'http' => array( 'method' => "GET", 'header' => join(array( "Accept-language: en\r\n", "User-Agent: {$this->USER_AGENT}\r\n" )) ) ); $context = stream_context_create($opts); $contents = file_get_contents($uri, false, $context); return $contents; } public function tweep($uri) { $html = $this->get_contents($uri); $xmlDoc = new DOMDocument(); $xmlDoc->loadHTML($html); $output = $this->xsltProcessor->transformToXML($xmlDoc); if (FALSE === $output) { trigger_error('XSL transformation failed.', E_USER_ERROR); return NULL; } return $output; } } function usage($argv) { if (php_sapi_name() != 'cli') $usage = htmlentities("{$_SERVER['SCRIPT_NAME']}?src_url="); else $usage = "{$argv[0]} \n"; return "usage: $usage"; } if (isset($_GET['src_url'])) { $src_url = $_GET['src_url']; } else if (isset($argv[1])) { if ($argv[1] == "-h" || $argv[1] == "--help") { echo usage($argv); return 0; } $src_url = $argv[1]; } else { die(usage($argv)); } $url = parse_url($src_url); if (FALSE === $url || empty($url["host"])) die("Invalid url: $src_url\n"); $stylesheet = __DIR__ . "/rss_converter_" . $url["host"] . ".xsl"; if (FALSE === file_exists($stylesheet)) die("Conversion to RSS not supported: {$url["host"]}\n"); $tweeper = new Tweeper($stylesheet); echo $tweeper->tweep($src_url);