Friendica Communications Platform (please note that this is a clone of the repository at github, issues are handled there) https://friendi.ca
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<?php
/**
* @copyright Copyright (C) 2010-2021, the Friendica project
*
* @license GNU APGL version 3 or any later version
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
namespace Friendica\Network;
use Friendica\Core\System;
use Friendica\Util\Network;
use Friendica\Util\Profiler;
use GuzzleHttp\Client;
use GuzzleHttp\Cookie\FileCookieJar;
use GuzzleHttp\Exception\RequestException;
use GuzzleHttp\Exception\TransferException;
use GuzzleHttp\RequestOptions;
use mattwright\URLResolver;
use Psr\Http\Message\ResponseInterface;
use Psr\Log\LoggerInterface;
/**
* Performs HTTP requests to a given URL
*/
class HTTPClient implements IHTTPClient
{
/** @var LoggerInterface */
private $logger;
/** @var Profiler */
private $profiler;
/** @var Client */
private $client;
/** @var URLResolver */
private $resolver;
public function __construct(LoggerInterface $logger, Profiler $profiler, Client $client, URLResolver $resolver)
{
$this->logger = $logger;
$this->profiler = $profiler;
$this->client = $client;
$this->resolver = $resolver;
}
/**
* @throws HTTPException\InternalServerErrorException
*/
protected function request(string $method, string $url, array $opts = []): IHTTPResult
{
$this->profiler->startRecording('network');
$this->logger->debug('Request start.', ['url' => $url, 'method' => $method]);
if (Network::isLocalLink($url)) {
$this->logger->info('Local link', ['url' => $url, 'callstack' => System::callstack(20)]);
}
if (strlen($url) > 1000) {
$this->logger->debug('URL is longer than 1000 characters.', ['url' => $url, 'callstack' => System::callstack(20)]);
$this->profiler->stopRecording();
return CurlResult::createErrorCurl(substr($url, 0, 200));
}
$parts2 = [];
$parts = parse_url($url);
$path_parts = explode('/', $parts['path'] ?? '');
foreach ($path_parts as $part) {
if (strlen($part) <> mb_strlen($part)) {
$parts2[] = rawurlencode($part);
} else {
$parts2[] = $part;
}
}
$parts['path'] = implode('/', $parts2);
$url = Network::unparseURL($parts);
if (Network::isUrlBlocked($url)) {
$this->logger->info('Domain is blocked.', ['url' => $url]);
$this->profiler->stopRecording();
return CurlResult::createErrorCurl($url);
}
$conf = [];
if (!empty($opts['cookiejar'])) {
$jar = new FileCookieJar($opts['cookiejar']);
$conf[RequestOptions::COOKIES] = $jar;
}
$header = [];
if (!empty($opts['accept_content'])) {
array_push($header, 'Accept: ' . $opts['accept_content']);
}
if (!empty($opts['header'])) {
$header = array_merge($opts['header'], $header);
}
if (!empty($opts['headers'])) {
$this->logger->notice('Wrong option \'headers\' used.');
$header = array_merge($opts['headers'], $header);
}
$conf[RequestOptions::HEADERS] = array_merge($this->client->getConfig(RequestOptions::HEADERS), $header);
if (!empty($opts['timeout'])) {
$conf[RequestOptions::TIMEOUT] = $opts['timeout'];
}
$conf[RequestOptions::ON_HEADERS] = function (ResponseInterface $response) use ($opts) {
if (!empty($opts['content_length']) &&
$response->getHeaderLine('Content-Length') > $opts['content_length']) {
throw new TransferException('The file is too big!');
}
};
try {
switch ($method) {
case 'get':
$response = $this->client->get($url, $conf);
break;
case 'head':
$response = $this->client->head($url, $conf);
break;
default:
throw new TransferException('Invalid method');
}
return new GuzzleResponse($response, $url);
} catch (TransferException $exception) {
if ($exception instanceof RequestException &&
$exception->hasResponse()) {
return new GuzzleResponse($exception->getResponse(), $url, $exception->getCode(), '');
} else {
return new CurlResult($url, '', ['http_code' => $exception->getCode()], $exception->getCode(), '');
}
} finally {
$this->logger->debug('Request stop.', ['url' => $url, 'method' => $method]);
$this->profiler->stopRecording();
}
}
/** {@inheritDoc}
*
* @throws HTTPException\InternalServerErrorException
*/
public function head(string $url, array $opts = []): IHTTPResult
{
return $this->request('head', $url, $opts);
}
/**
* {@inheritDoc}
*/
public function get(string $url, array $opts = []): IHTTPResult
{
return $this->request('get', $url, $opts);
}
/**
* {@inheritDoc}
*/
public function post(string $url, $params, array $headers = [], int $timeout = 0): IHTTPResult
{
$opts = [];
$opts[RequestOptions::JSON] = $params;
if (!empty($headers)) {
$opts['headers'] = $headers;
}
if (!empty($timeout)) {
$opts[RequestOptions::TIMEOUT] = $timeout;
}
return $this->request('post', $url, $opts);
}
/**
* {@inheritDoc}
*/
public function finalUrl(string $url)
{
$this->profiler->startRecording('network');
if (Network::isLocalLink($url)) {
$this->logger->debug('Local link', ['url' => $url, 'callstack' => System::callstack(20)]);
}
if (Network::isUrlBlocked($url)) {
$this->logger->info('Domain is blocked.', ['url' => $url]);
return $url;
}
if (Network::isRedirectBlocked($url)) {
$this->logger->info('Domain should not be redirected.', ['url' => $url]);
return $url;
}
$url = Network::stripTrackingQueryParams($url);
$url = trim($url, "'");
// Designate a temporary file that will store cookies during the session.
// Some websites test the browser for cookie support, so this enhances results.
$this->resolver->setCookieJar(tempnam(get_temppath() , 'url_resolver-'));
$urlResult = $this->resolver->resolveURL($url);
if ($urlResult->didErrorOccur()) {
throw new TransferException($urlResult->getErrorMessageString());
}
return $urlResult->getURL();
}
/**
* {@inheritDoc}
*/
public function fetch(string $url, int $timeout = 0, string $accept_content = '', string $cookiejar = '')
{
$ret = $this->fetchFull($url, $timeout, $accept_content, $cookiejar);
return $ret->getBody();
}
/**
* {@inheritDoc}
*/
public function fetchFull(string $url, int $timeout = 0, string $accept_content = '', string $cookiejar = '')
{
return $this->get(
$url,
[
'timeout' => $timeout,
'accept_content' => $accept_content,
'cookiejar' => $cookiejar
]
);
}
}