function acquia_agent_http_request in Acquia Connector 6
Same name and namespace in other branches
- 6.2 acquia_agent/acquia_agent_streams.inc \acquia_agent_http_request()
Perform an HTTP request. This function is copied and modified from Drupal 6's common.inc.
Parameters
$context: A PHP stream context created with stream_create_context(). This context will be used when a socket connection is created.
...: The rest of the parameters and return values are the same as xmlrpc().
1 call to acquia_agent_http_request()
- _acquia_agent_xmlrpc in acquia_agent/
acquia_agent_streams.inc - Performs one or more XML-RPC request(s), using a PHP stream context when creating the socket. This function is copied and modified from Drupal 6's common.inc and xmlrpc.inc.
File
- acquia_agent/
acquia_agent_streams.inc, line 97 - XML-RPC communication functions for Acquia communication.
Code
function acquia_agent_http_request($context, $url, $headers = array(), $method = 'GET', $data = NULL, $retry = 3, $timeout = 30.0, $connect_timeout = 1.0) {
$result = new stdClass();
// Parse the URL and make sure we can handle the schema.
$uri = parse_url($url);
timer_start(__FUNCTION__);
switch ($uri['scheme']) {
case 'http':
$port = isset($uri['port']) ? $uri['port'] : 80;
$host = $uri['host'] . ($port != 80 ? ':' . $port : '');
$fp = @fsockopen($uri['host'], $port, $errno, $errstr, $connect_timeout);
break;
case 'https':
// Note: Only works for PHP 4.3 compiled with OpenSSL.
$port = isset($uri['port']) ? $uri['port'] : 443;
$host = $uri['host'] . ($port != 443 ? ':' . $port : '');
if (!isset($context)) {
$fp = @fsockopen('ssl://' . $uri['host'], $port, $errno, $errstr, $connect_timeout);
}
else {
$fp = @stream_socket_client('ssl://' . $uri['host'] . ':' . $port, $errno, $errstr, $connect_timeout, STREAM_CLIENT_CONNECT, $context);
if (!$fp && $errno == 0) {
// An SSL error occurred. I do not know of any way to get
// an error code or message programmatically. By not having
// an @ before stream_socket_client(), the actual SSL error
// will be logged via watchdog.
$errno = 999;
$errstr = t('SSL error creating socket');
}
}
break;
default:
$result->error = 'invalid schema ' . $uri['scheme'];
return $result;
}
// Make sure the socket opened properly.
if (!$fp) {
// When a network error occurs, we use a negative number so it does not
// clash with the HTTP status codes.
$result->code = -$errno;
$result->error = trim($errstr);
return $result;
}
// Construct the path to act on.
$path = isset($uri['path']) ? $uri['path'] : '/';
if (isset($uri['query'])) {
$path .= '?' . $uri['query'];
}
// Create HTTP request.
$defaults = array(
// RFC 2616: "non-standard ports MUST, default ports MAY be included".
// We don't add the port to prevent from breaking rewrite rules checking the
// host that do not take into account the port number.
'Host' => "Host: {$host}",
'User-Agent' => 'User-Agent: Drupal (+http://drupal.org/)',
);
// Only add Content-Length if we actually have any content or if it is a POST
// or PUT request. Some non-standard servers get confused by Content-Length in
// at least HEAD/GET requests, and Squid always requires Content-Length in
// POST/PUT requests.
if (!empty($data) || $method == 'POST' || $method == 'PUT') {
$defaults['Content-Length'] = 'Content-Length: ' . strlen($data);
}
// If the server url has a user then attempt to use basic authentication
if (isset($uri['user'])) {
$defaults['Authorization'] = 'Authorization: Basic ' . base64_encode($uri['user'] . (!empty($uri['pass']) ? ":" . $uri['pass'] : ''));
}
foreach ($headers as $header => $value) {
$defaults[$header] = $header . ': ' . $value;
}
$request = $method . ' ' . $path . " HTTP/1.0\r\n";
$request .= implode("\r\n", $defaults);
$request .= "\r\n\r\n";
if ($data) {
$request .= $data . "\r\n";
}
$result->request = $request;
// Calculate how much time is left of the original timeout value.
$time_left = $timeout - timer_read(__FUNCTION__) / 1000;
if ($time_left > 0) {
stream_set_timeout($fp, floor($time_left), floor(1000000 * fmod($time_left, 1)));
fwrite($fp, $request);
}
// Fetch response.
$response = '';
while (!feof($fp)) {
// Calculate how much time is left of the original timeout value.
$time_left = $timeout - timer_read(__FUNCTION__) / 1000;
if ($time_left <= 0) {
$result->code = ACQUIA_HTTP_REQUEST_TIMEOUT;
$result->error = 'request timed out';
return $result;
}
stream_set_timeout($fp, floor($time_left), floor(1000000 * fmod($time_left, 1)));
$chunk = fread($fp, 1024);
$response .= $chunk;
}
fclose($fp);
// Parse response.
list($split, $result->data) = explode("\r\n\r\n", $response, 2);
$split = preg_split("/\r\n|\n|\r/", $split);
list($protocol, $code, $text) = explode(' ', trim(array_shift($split)), 3);
$result->headers = array();
// Parse headers.
while ($line = trim(array_shift($split))) {
list($header, $value) = explode(':', $line, 2);
if (isset($result->headers[$header]) && $header == 'Set-Cookie') {
// RFC 2109: the Set-Cookie response header comprises the token Set-
// Cookie:, followed by a comma-separated list of one or more cookies.
$result->headers[$header] .= ',' . trim($value);
}
else {
$result->headers[$header] = trim($value);
}
}
$responses = array(
100 => 'Continue',
101 => 'Switching Protocols',
200 => 'OK',
201 => 'Created',
202 => 'Accepted',
203 => 'Non-Authoritative Information',
204 => 'No Content',
205 => 'Reset Content',
206 => 'Partial Content',
300 => 'Multiple Choices',
301 => 'Moved Permanently',
302 => 'Found',
303 => 'See Other',
304 => 'Not Modified',
305 => 'Use Proxy',
307 => 'Temporary Redirect',
400 => 'Bad Request',
401 => 'Unauthorized',
402 => 'Payment Required',
403 => 'Forbidden',
404 => 'Not Found',
405 => 'Method Not Allowed',
406 => 'Not Acceptable',
407 => 'Proxy Authentication Required',
408 => 'Request Time-out',
409 => 'Conflict',
410 => 'Gone',
411 => 'Length Required',
412 => 'Precondition Failed',
413 => 'Request Entity Too Large',
414 => 'Request-URI Too Large',
415 => 'Unsupported Media Type',
416 => 'Requested range not satisfiable',
417 => 'Expectation Failed',
500 => 'Internal Server Error',
501 => 'Not Implemented',
502 => 'Bad Gateway',
503 => 'Service Unavailable',
504 => 'Gateway Time-out',
505 => 'HTTP Version not supported',
);
// RFC 2616 states that all unknown HTTP codes must be treated the same as the
// base code in their class.
if (!isset($responses[$code])) {
$code = floor($code / 100) * 100;
}
switch ($code) {
case 200:
// OK
case 304:
// Not modified
break;
case 301:
// Moved permanently
case 302:
// Moved temporarily
case 307:
// Moved temporarily
$location = $result->headers['Location'];
$timeout -= timer_read(__FUNCTION__) / 1000;
if ($timeout <= 0) {
$result->code = ACQUIA_HTTP_REQUEST_TIMEOUT;
$result->error = 'request timed out';
}
elseif ($retry) {
$result = acquia_agent_http_request($context, $result->headers['Location'], $headers, $method, $data, --$retry, $timeout, $connect_timeout);
$result->redirect_code = $result->code;
}
$result->redirect_url = $location;
break;
default:
$result->error = $text;
}
$result->code = $code;
return $result;
}