mpdf/src/RemoteContentFetcher.php at development · alsbury/mpdf · GitHub

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<?php

namespace Mpdf;

use Mpdf\Utils\Arrays;
use Psr\Log\LoggerInterface;
use Mpdf\Log\Context as LogContext;

class RemoteContentFetcher implements \Psr\Log\LoggerAwareInterface
{

/**
 * @var \Mpdf\Mpdf
 */
private $mpdf;

/**
 * @var \Psr\Log\LoggerInterface
 */
private $logger;

public function __construct(Mpdf $mpdf, LoggerInterface $logger)
{
$this->mpdf = $mpdf;
$this->logger = $logger;
}

public function getFileContentsByCurl($url)
{
$this->logger->debug(sprintf('Fetching (cURL) content of remote URL "%s"', $url), ['context' => LogContext::REMOTE_CONTENT]);

$ch = curl_init($url);

curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:13.0) Gecko/20100101 Firefox/13.0.1'); // mPDF 5.7.4
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_NOBODY, 0);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, $this->mpdf->curlTimeout);

if ($this->mpdf->curlFollowLocation) {
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
}

if ($this->mpdf->curlAllowUnsafeSslRequests) {
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
}

if (is_file($this->mpdf->curlCaCertificate)) {
curl_setopt($ch, CURLOPT_CAINFO, $this->mpdf->curlCaCertificate);
}

if ($this->mpdf->curlProxy) {
curl_setopt($ch, CURLOPT_PROXY, $this->mpdf->curlProxy);
if ($this->mpdf->curlProxyAuth) {
curl_setopt($ch, CURLOPT_PROXYUSERPWD, $this->mpdf->curlProxyAuth);
}
}

$data = curl_exec($ch);

if (curl_error($ch)) {
$this->logger->error(sprintf('cURL error: "%s"', curl_error($ch)), ['context' => LogContext::REMOTE_CONTENT]);
}

curl_close($ch);

return $data;
}

public function getFileContentsBySocket($url)
{
$this->logger->debug(sprintf('Fetching (socket) content of remote URL "%s"', $url), ['context' => LogContext::REMOTE_CONTENT]);
// mPDF 5.7.3

$timeout = 1;
$p = parse_url($url);

$file = Arrays::get($p, 'path', '');
$scheme = Arrays::get($p, 'scheme', '');
$port = Arrays::get($p, 'port', 80);
$prefix = '';

if ($scheme === 'https') {
$prefix = 'ssl://';
$port = Arrays::get($p, 'port', 443);
}

$query = Arrays::get($p, 'query', null);
if ($query) {
$file .= '?' . $query;
}

if (!($fh = @fsockopen($prefix . $p['host'], $port, $errno, $errstr, $timeout))) {
$this->logger->error(sprintf('Socket error "%s": "%s"', $errno, $errstr), ['context' => LogContext::REMOTE_CONTENT]);
return false;
}

$getstring = 'GET ' . $file . " HTTP/1.0 \r\n" .
'Host: ' . $p['host'] . " \r\n" .
"Connection: close\r\n\r\n";

fwrite($fh, $getstring);

// Get rid of HTTP header
$s = fgets($fh, 1024);
if (!$s) {
return false;
}

while (!feof($fh)) {
$s = fgets($fh, 1024);
if ($s === "\r\n") {
break;
}
}

$data = '';

while (!feof($fh)) {
$data .= fgets($fh, 1024);
}

fclose($fh);

return $data;
}

public function setLogger(LoggerInterface $logger)
{
$this->logger = $logger;
}
}