Your IP : 192.168.165.1
<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
/**
* This file contains the class moodle_google_curlio.
*
* @package core_google
* @copyright 2013 Frédéric Massart
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
defined('MOODLE_INTERNAL') || die();
require_once($CFG->libdir . '/filelib.php');
/**
* Class moodle_google_curlio.
*
* The initial purpose of this class is to add support for our
* class curl in Google_IO_Curl. It mostly entirely overrides it.
*
* @package core_google
* @copyright 2013 Frédéric Massart
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class moodle_google_curlio extends Google_IO_Curl {
/** @var array associate array of constant value and their name. */
private static $constants = null;
/** @var array options. */
private $options = array();
/**
* Send the request via our curl object.
*
* @param curl $curl prepared curl object.
* @param Google_HttpRequest $request The request.
* @return string result of the request.
*/
private function do_request($curl, $request) {
$url = $request->getUrl();
$method = $request->getRequestMethod();
switch (strtoupper($method)) {
case 'POST':
$ret = $curl->post($url, $request->getPostBody());
break;
case 'GET':
$ret = $curl->get($url);
break;
case 'HEAD':
$ret = $curl->head($url);
break;
case 'PUT':
$ret = $curl->put($url);
break;
default:
throw new coding_exception('Unknown request type: ' . $method);
break;
}
return $ret;
}
/**
* Execute an API request.
*
* This is a copy/paste from the parent class that uses Moodle's implementation
* of curl. Portions have been removed or altered.
*
* @param Google_Http_Request $request the http request to be executed
* @return Google_Http_Request http request with the response http code, response
* headers and response body filled in
* @throws Google_IO_Exception on curl or IO error
*/
public function executeRequest(Google_Http_Request $request) {
$curl = new curl();
if ($request->getPostBody()) {
$curl->setopt(array('CURLOPT_POSTFIELDS' => $request->getPostBody()));
}
$requestHeaders = $request->getRequestHeaders();
if ($requestHeaders && is_array($requestHeaders)) {
$curlHeaders = array();
foreach ($requestHeaders as $k => $v) {
$curlHeaders[] = "$k: $v";
}
$curl->setopt(array('CURLOPT_HTTPHEADER' => $curlHeaders));
}
$curl->setopt(array('CURLOPT_URL' => $request->getUrl()));
$curl->setopt(array('CURLOPT_CUSTOMREQUEST' => $request->getRequestMethod()));
$curl->setopt(array('CURLOPT_USERAGENT' => $request->getUserAgent()));
$curl->setopt(array('CURLOPT_FOLLOWLOCATION' => false));
$curl->setopt(array('CURLOPT_SSL_VERIFYPEER' => true));
$curl->setopt(array('CURLOPT_RETURNTRANSFER' => true));
$curl->setopt(array('CURLOPT_HEADER' => true));
if ($request->canGzip()) {
$curl->setopt(array('CURLOPT_ENCODING' => 'gzip,deflate'));
}
$curl->setopt($this->options);
$respdata = $this->do_request($curl, $request);
$infos = $curl->get_info();
$respheadersize = $infos['header_size'];
$resphttpcode = (int) $infos['http_code'];
$curlerrornum = $curl->get_errno();
$curlerror = $curl->error;
if ($respdata != CURLE_OK) {
throw new Google_IO_Exception($curlerror);
}
list($responseHeaders, $responseBody) = $this->parseHttpResponse($respdata, $respheadersize);
return array($responseBody, $responseHeaders, $resphttpcode);
}
/**
* Set curl options.
*
* We overwrite this method to ensure that the data passed meets
* the requirement of our curl implementation and so that the keys
* are strings, and not curl constants.
*
* @param array $optparams Multiple options used by a cURL session.
* @return void
*/
public function setOptions($optparams) {
$safeparams = array();
foreach ($optparams as $name => $value) {
if (!is_string($name)) {
$name = $this->get_option_name_from_constant($name);
}
$safeparams[$name] = $value;
}
$this->options = $options + $this->options;
}
/**
* Set the maximum request time in seconds.
*
* Overridden to use the right option key.
*
* @param $timeout in seconds
*/
public function setTimeout($timeout) {
// Since this timeout is really for putting a bound on the time
// we'll set them both to the same. If you need to specify a longer
// CURLOPT_TIMEOUT, or a tigher CONNECTTIMEOUT, the best thing to
// do is use the setOptions method for the values individually.
$this->options['CURLOPT_CONNECTTIMEOUT'] = $timeout;
$this->options['CURLOPT_TIMEOUT'] = $timeout;
}
/**
* Get the maximum request time in seconds.
*
* Overridden to use the right option key.
*
* @return timeout in seconds.
*/
public function getTimeout() {
return $this->options['CURLOPT_TIMEOUT'];
}
/**
* Return the name of an option based on the constant value.
*
* @param int $constant value of a CURL constant.
* @return string name of the constant if found, or throws exception.
* @throws coding_exception when the constant is not found.
* @since Moodle 2.5
*/
public function get_option_name_from_constant($constant) {
if (is_null(self::$constants)) {
$constants = get_defined_constants(true);
$constants = isset($constants['curl']) ? $constants['curl'] : array();
$constants = array_flip($constants);
self::$constants = $constants;
}
if (isset(self::$constants[$constant])) {
return self::$constants[$constant];
}
throw new coding_exception('Unknown curl constant value: ' . $constant);
}
}