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138 lines
4.2 KiB
138 lines
4.2 KiB
<?php
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use Symfony\Component\HttpFoundation\Request;
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use Symfony\Component\HttpFoundation\Response;
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use p3k\XRay\Formats;
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class Parse {
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public $http;
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public $mc;
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private $_cacheTime = 120;
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private $_pretty = false;
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private static $_version = '1.4.25';
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public static function useragent() {
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return 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/57.0.2987.133 Safari/537.36 XRay/'.self::$_version.' ('.\Config::$base.')';
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}
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public function __construct() {
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$this->http = new p3k\HTTP(self::useragent());
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if(Config::$cache && class_exists('Memcache')) {
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$this->mc = new Memcache();
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$this->mc->addServer('127.0.0.1');
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}
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}
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public static function debug($msg, $header='X-Parse-Debug') {
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syslog(LOG_INFO, $msg);
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if(array_key_exists('REMOTE_ADDR', $_SERVER))
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header($header . ": " . $msg);
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}
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private function respond(Response $response, $code, $params, $headers=[]) {
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$response->setStatusCode($code);
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foreach($headers as $k=>$v) {
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$response->headers->set($k, $v);
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}
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$response->headers->set('Content-Type', 'application/json');
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$response->headers->set('Version', 'XRay/'.self::$_version.' php-mf2/'.p3k\XRay\phpmf2_version());
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$opts = JSON_UNESCAPED_SLASHES;
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if($this->_pretty) $opts += JSON_PRETTY_PRINT;
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$response->setContent(json_encode($params, $opts)."\n");
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return $response;
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}
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public function parse(Request $request, Response $response) {
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$opts = [];
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if($request->get('timeout')) {
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// We might make 2 HTTP requests, so each request gets half the desired timeout
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$opts['timeout'] = $request->get('timeout') / 2;
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}
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if($request->get('max_redirects') !== null) {
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$opts['max_redirects'] = (int)$request->get('max_redirects');
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}
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if($request->get('target')) {
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$opts['target'] = $request->get('target');
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}
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if($request->get('expect')) {
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$opts['expect'] = $request->get('expect');
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}
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if($request->get('pretty')) {
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$this->_pretty = true;
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}
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$url = $request->get('url');
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$html = $request->get('html') ?: $request->get('body');
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if(!$url && !$html) {
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return $this->respond($response, 400, [
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'error' => 'missing_url',
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'error_description' => 'Provide a URL or HTML to fetch',
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]);
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}
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if($html) {
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// If HTML is provided in the request, parse that, and use the URL provided as the base URL for mf2 resolving
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$result['body'] = $html;
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$result['url'] = $url;
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$result['code'] = null;
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} else {
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$fetcher = new p3k\XRay\Fetcher($this->http);
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$fields = [
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'twitter_api_key','twitter_api_secret','twitter_access_token','twitter_access_token_secret',
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'facebook_app_id', 'facebook_app_secret',
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'github_access_token',
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'token'
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];
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foreach($fields as $f) {
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if($v=$request->get($f))
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$opts[$f] = $v;
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}
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$result = $fetcher->fetch($url, $opts);
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if(!empty($result['error'])) {
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$error_code = isset($result['error_code']) ? $result['error_code'] : 200;
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unset($result['error_code']);
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return $this->respond($response, $error_code, $result);
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}
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}
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$parser = new p3k\XRay\Parser($this->http);
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$parsed = $parser->parse($result, $opts);
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// Allow the parser to override the HTTP response code, e.g. a meta-equiv tag
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if(isset($parsed['code']))
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$result['code'] = $parsed['code'];
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if(!empty($parsed['error'])) {
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$error_code = isset($parsed['error_code']) ? $parsed['error_code'] : 200;
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unset($parsed['error_code']);
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return $this->respond($response, $error_code, $parsed);
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} else {
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$data = [
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'data' => $parsed['data'],
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'url' => $result['url'],
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'code' => $result['code'],
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];
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if(isset($parsed['info']))
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$data['info'] = $parsed['info'];
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if($request->get('include_original') && isset($parsed['original']))
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$data['original'] = $parsed['original'];
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if(isset($parsed['source-format']))
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$data['source-format'] = $parsed['source-format'];
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if(isset($parsed['url']) && $parsed['url'] != $result['url'])
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$data['parsed-url'] = $parsed['url'];
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return $this->respond($response, 200, $data);
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}
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}
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}
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