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<?php
namespace Kanboard\Core\Http;
use Kanboard\Core\Base;
use Kanboard\Job\HttpAsyncJob;
/**
* HTTP client
*
* @package Kanboard\Core\Http
* @author Frederic Guillot
*/
class Client extends Base
{
/**
* HTTP connection timeout in seconds
*
* @var integer
*/
const HTTP_TIMEOUT = 10;
/**
* Number of maximum redirections for the HTTP client
*
* @var integer
*/
const HTTP_MAX_REDIRECTS = 2;
/**
* HTTP client user agent
*
* @var string
*/
const HTTP_USER_AGENT = 'Kanboard';
/**
* Send a GET HTTP request
*
* @access public
* @param string $url
* @param string[] $headers
* @param bool $raiseForErrors
* @return string
*/
public function get($url, array $headers = [], $raiseForErrors = false)
{
return $this->doRequest('GET', $url, '', $headers, $raiseForErrors);
}
/**
* Send a GET HTTP request and parse JSON response
*
* @access public
* @param string $url
* @param string[] $headers
* @param bool $raiseForErrors
* @return array
*/
public function getJson($url, array $headers = [], $raiseForErrors = false)
{
$response = $this->doRequest('GET', $url, '', array_merge(['Accept: application/json'], $headers), $raiseForErrors);
return json_decode($response, true) ?: [];
}
/**
* Send a POST HTTP request encoded in JSON
*
* @access public
* @param string $url
* @param array $data
* @param string[] $headers
* @param bool $raiseForErrors
* @return string
*/
public function postJson($url, array $data, array $headers = [], $raiseForErrors = false)
{
return $this->doRequest(
'POST',
$url,
json_encode($data),
array_merge(['Content-type: application/json'], $headers),
$raiseForErrors
);
}
/**
* Send a POST HTTP request encoded in JSON (Fire and forget)
*
* @access public
* @param string $url
* @param array $data
* @param string[] $headers
* @param bool $raiseForErrors
*/
public function postJsonAsync($url, array $data, array $headers = [], $raiseForErrors = false)
{
$this->queueManager->push(HttpAsyncJob::getInstance($this->container)->withParams(
'POST',
$url,
json_encode($data),
array_merge(['Content-type: application/json'], $headers),
$raiseForErrors
));
}
/**
* Send a POST HTTP request encoded in www-form-urlencoded
*
* @access public
* @param string $url
* @param array $data
* @param string[] $headers
* @param bool $raiseForErrors
* @return string
*/
public function postForm($url, array $data, array $headers = [], $raiseForErrors = false)
{
return $this->doRequest(
'POST',
$url,
http_build_query($data),
array_merge(['Content-type: application/x-www-form-urlencoded'], $headers),
$raiseForErrors
);
}
/**
* Send a POST HTTP request encoded in www-form-urlencoded (fire and forget)
*
* @access public
* @param string $url
* @param array $data
* @param string[] $headers
* @param bool $raiseForErrors
*/
public function postFormAsync($url, array $data, array $headers = [], $raiseForErrors = false)
{
$this->queueManager->push(HttpAsyncJob::getInstance($this->container)->withParams(
'POST',
$url,
http_build_query($data),
array_merge(['Content-type: application/x-www-form-urlencoded'], $headers),
$raiseForErrors
));
}
/**
* Make the HTTP request
*
* @access public
* @param string $method
* @param string $url
* @param string $content
* @param string[] $headers
* @param bool $raiseForErrors
* @return string
*/
public function doRequest($method, $url, $content, array $headers, $raiseForErrors = false)
{
if (empty($url)) {
return '';
}
$startTime = microtime(true);
$stream = @fopen(trim($url), 'r', false, stream_context_create($this->getContext($method, $content, $headers, $raiseForErrors)));
if (! is_resource($stream)) {
$this->logger->error('HttpClient: request failed ('.$url.')');
if ($raiseForErrors) {
throw new ClientException('Unreachable URL: '.$url);
}
return '';
}
$body = stream_get_contents($stream);
$metadata = stream_get_meta_data($stream);
if ($raiseForErrors && array_key_exists('wrapper_data', $metadata)) {
$statusCode = $this->getStatusCode($metadata['wrapper_data']);
if ($statusCode >= 400) {
throw new InvalidStatusException('Request failed with status code '.$statusCode, $statusCode, $body);
}
}
if (DEBUG) {
$this->logger->debug('HttpClient: url='.$url);
$this->logger->debug('HttpClient: headers='.var_export($headers, true));
$this->logger->debug('HttpClient: payload='.$content);
$this->logger->debug('HttpClient: metadata='.var_export($metadata, true));
$this->logger->debug('HttpClient: body='.$body);
$this->logger->debug('HttpClient: executionTime='.(microtime(true) - $startTime));
}
return $body;
}
/**
* Get stream context
*
* @access private
* @param string $method
* @param string $content
* @param string[] $headers
* @param bool $raiseForErrors
* @return array
*/
private function getContext($method, $content, array $headers, $raiseForErrors = false)
{
$default_headers = [
'User-Agent: '.self::HTTP_USER_AGENT,
'Connection: close',
];
if (HTTP_PROXY_USERNAME) {
$default_headers[] = 'Proxy-Authorization: Basic '.base64_encode(HTTP_PROXY_USERNAME.':'.HTTP_PROXY_PASSWORD);
}
$headers = array_merge($default_headers, $headers);
$context = [
'http' => [
'method' => $method,
'protocol_version' => 1.1,
'timeout' => self::HTTP_TIMEOUT,
'max_redirects' => self::HTTP_MAX_REDIRECTS,
'header' => implode("\r\n", $headers),
'content' => $content,
'ignore_errors' => $raiseForErrors,
]
];
if (HTTP_PROXY_HOSTNAME) {
$context['http']['proxy'] = 'tcp://'.HTTP_PROXY_HOSTNAME.':'.HTTP_PROXY_PORT;
$context['http']['request_fulluri'] = true;
}
if (HTTP_VERIFY_SSL_CERTIFICATE === false) {
$context['ssl'] = [
'verify_peer' => false,
'verify_peer_name' => false,
'allow_self_signed' => true,
];
}
return $context;
}
private function getStatusCode(array $lines)
{
$status = 200;
foreach ($lines as $line) {
if (strpos($line, 'HTTP/1') === 0) {
$status = (int) substr($line, 9, 3);
}
}
return $status;
}
}
|
