miniflux-legacy/vendor/PicoFeed/Clients/Curl.php

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<?php
namespace PicoFeed\Clients;
use \PicoFeed\Logging;
class Curl extends \PicoFeed\Client
{
private $body = '';
private $body_length = 0;
private $headers = array();
private $headers_counter = 0;
public function readBody($ch, $buffer)
{
$length = strlen($buffer);
$this->body_length += $length;
if ($this->body_length > $this->max_body_size) return -1;
$this->body .= $buffer;
return $length;
}
public function readHeaders($ch, $buffer)
{
$length = strlen($buffer);
if ($buffer === "\r\n") {
$this->headers_counter++;
}
else {
if (! isset($this->headers[$this->headers_counter])) {
$this->headers[$this->headers_counter] = '';
}
$this->headers[$this->headers_counter] .= $buffer;
}
return $length;
}
public function doRequest($follow_location = true)
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{
$request_headers = array('Connection: close');
if ($this->etag) $request_headers[] = 'If-None-Match: '.$this->etag;
if ($this->last_modified) $request_headers[] = 'If-Modified-Since: '.$this->last_modified;
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $this->url);
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, $this->timeout);
curl_setopt($ch, CURLOPT_TIMEOUT, $this->timeout);
curl_setopt($ch, CURLOPT_USERAGENT, $this->user_agent);
curl_setopt($ch, CURLOPT_HTTPHEADER, $request_headers);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, ini_get('open_basedir') === '');
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curl_setopt($ch, CURLOPT_MAXREDIRS, $this->max_redirects);
curl_setopt($ch, CURLOPT_ENCODING, '');
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false); // For auto-signed certificates...
curl_setopt($ch, CURLOPT_WRITEFUNCTION, array($this, 'readBody'));
curl_setopt($ch, CURLOPT_HEADERFUNCTION, array($this, 'readHeaders'));
curl_setopt($ch, CURLOPT_COOKIEJAR, 'php://memory');
curl_setopt($ch, CURLOPT_COOKIEFILE, 'php://memory');
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curl_exec($ch);
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Logging::log(\get_called_class().' cURL total time: '.curl_getinfo($ch, CURLINFO_TOTAL_TIME));
Logging::log(\get_called_class().' cURL dns lookup time: '.curl_getinfo($ch, CURLINFO_NAMELOOKUP_TIME));
Logging::log(\get_called_class().' cURL connect time: '.curl_getinfo($ch, CURLINFO_CONNECT_TIME));
Logging::log(\get_called_class().' cURL speed download: '.curl_getinfo($ch, CURLINFO_SPEED_DOWNLOAD));
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if (curl_errno($ch)) {
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Logging::log(\get_called_class().' cURL error: '.curl_error($ch));
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curl_close($ch);
return false;
}
curl_close($ch);
list($status, $headers) = $this->parseHeaders(explode("\r\n", $this->headers[$this->headers_counter - 1]));
if ($follow_location && ini_get('open_basedir') !== '' && ($status == 301 || $status == 302)) {
$nb_redirects = 0;
$this->url = $headers['Location'];
$this->body = '';
$this->body_length = 0;
$this->headers = array();
$this->headers_counter = 0;
while (true) {
$nb_redirects++;
if ($nb_redirects >= $this->max_redirects) return false;
$result = $this->doRequest(false);
if ($result['status'] == 301 || $result['status'] == 302) {
$this->url = $result['headers']['Location'];
$this->body = '';
$this->body_length = 0;
$this->headers = array();
$this->headers_counter = 0;
}
else {
return $result;
}
}
}
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return array(
'status' => $status,
'body' => $this->body,
'headers' => $headers
);
}
}