/**
*
* @param string $http_method
* @param string $url
* @param array $curl_opts @see http://php.net/manual/en/function.curl-setopt.php
* @param array $entity_headers
* @param array $entity_body
* @return array
*
*/
public static function make_request($http_method, $url, array $curl_opts = array(), array $entity_headers = null, $entity_body = null)
{
if (!$url) {
throw new \Exception("URI cannot be empty");
}
$http_method = strtoupper($http_method);
$handle = curl_init($url);
// initialize curl handle
// $curl_opts = self::sanitize_curlopts($curl_opts);
/*
* take the union of the input curl_opts and our defauls, allowing the
* input to override the defaults
*/
$curl_opts = $curl_opts + self::$default_curl_opts;
// but don't allow override of CURLOPT_RETURNTRANSFER => 1, // return result to a variable
$curl_opts[CURLOPT_RETURNTRANSFER] = 1;
curl_setopt_array($handle, $curl_opts);
// set entity headers if they were supplied
if ($entity_headers) {
curl_setopt($handle, CURLOPT_HTTPHEADER, $entity_headers);
}
$put_data_file = null;
switch ($http_method) {
case 'GET':
break;
case 'POST':
curl_setopt($handle, CURLOPT_POST, 1);
if ($entity_body) {
curl_setopt($handle, CURLOPT_POSTFIELDS, $entity_body);
}
break;
case 'PUT':
curl_setopt($handle, CURLOPT_PUT, 1);
if ($entity_body) {
/* Prepare the data for HTTP PUT. */
$put_data_file = tmpfile();
fwrite($put_data_file, $entity_body);
fseek($put_data_file, 0);
curl_setopt($handle, CURLOPT_INFILE, $put_data_file);
curl_setopt($handle, CURLOPT_INFILESIZE, strlen($entity_body));
}
break;
case 'DELETE':
curl_setopt($handle, CURLOPT_CUSTOMREQUEST, 'DELETE');
break;
case 'HEAD':
curl_setopt($handle, CURLOPT_NOBODY, 1);
break;
case 'OPTIONS':
curl_setopt($handle, CURLOPT_CUSTOMREQUEST, 'OPTIONS');
break;
default:
throw new \Exception("Unknown HTTP Method: [{$http_method}]");
break;
}
$http_response = curl_exec($handle);
$response_info = curl_getinfo($handle);
$put_data_file ? fclose($put_data_file) : null;
if ($http_response === false) {
// some sort od Network level failure
throw new \Exception("HTTP Communication Failed: Curl Error Number [" . curl_errno($handle) . "] : " . curl_error($handle));
}
curl_close($handle);
self::$response_has_headers = $http_method == 'HEAD' || Arr::get(CURLOPT_HEADER, $curl_opts) == 1;
return array('response' => $http_response, 'info' => $response_info);
}
/**
*
* @param <type> $header_block
* @return array
* <code>
* ex:
* Array
(
[raw] => {the raw unparsed header block}
[http_version] => HTTP/1.0
[status_code] => 302
[status_label] => Found
[headers] => Array
(
[location] => http://www.iana.org/domains/example/
[server] => BigIP
[connection] => Keep-Alive
[content-length] => 0
)
)
* </code>
*/
function parse_header_block($header_block)
{
$parsed_header_block = array('raw' => $header_block, 'http_version' => null, 'status_code' => null, 'status_label' => null, 'headers' => array());
$header_lines = preg_split('/[\\r?\\n]+/', $header_block);
// take apart the http declaration on the first line
$http_declaration = array();
preg_match('/^(.*)\\s+(\\d\\d\\d)\\s+(.*)$/', array_shift($header_lines), $http_declaration);
$parsed_header_block['http_version'] = Arr::get(1, $http_declaration);
$parsed_header_block['status_code'] = Arr::get(2, $http_declaration);
$parsed_header_block['status_label'] = Arr::get(3, $http_declaration);
// parse the rest of the headers into an array
$processed_headers = array();
foreach ($header_lines as $header_line) {
$header_line = explode(':', $header_line, 2);
if (count($header_line) == 2) {
$header_line = array_map('trim', $header_line);
if (array_key_exists($header_line[0], $processed_headers)) {
if (!is_array($processed_headers[$header_line[0]])) {
$processed_headers[$header_line[0]] = array($processed_headers[$header_line[0]]);
}
$processed_headers[$header_line[0]][] = $header_line[1];
} else {
$processed_headers[$header_line[0]] = $header_line[1];
}
}
}
$parsed_header_block['headers'] = is_array($processed_headers) ? array_change_key_case($processed_headers, CASE_LOWER) : $processed_headers;
return $parsed_header_block;
}
