Current File : /home/tjamichg/cursos.tjamich.gob.mx/plugin/openmeetings/lib/openmeetings_rest_service.php
<?php
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License") + you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
/**
* Created on 03.01.2012 by eugen.schwert@gmail.com.
*
* @package chamilo.plugin.openmeetings
* @requires CURL
*/
/**
* Class OpenMeetingsRestService.
*/
class OpenMeetingsRestService
{
public function call($request, $returnAttribute = "return")
{
// This will allow you to view errors in the browser
// Note: set "display_errors" to 0 in production
// ini_set('display_errors',1);
// Report all PHP errors (notices, errors, warnings, etc.)
// error_reporting(E_ALL);
// URI used for making REST call. Each Web Service uses a unique URL.
// $request
// Initialize the session by passing the request as a parameter
$session = curl_init($request);
// Set curl options by passing session and flags
// CURLOPT_HEADER allows us to receive the HTTP header
curl_setopt($session, CURLOPT_HEADER, true);
// CURLOPT_RETURNTRANSFER will return the response
curl_setopt($session, CURLOPT_RETURNTRANSFER, true);
// Make the request
$response = curl_exec($session);
// Close the curl session
curl_close($session);
// Confirm that the request was transmitted to the OpenMeetings! Image Search Service
if (!$response) {
exit("Request OpenMeetings! OpenMeetings Service failed and no response was returned in ".__CLASS__.'::'.__FUNCTION__.'()');
}
// Create an array to store the HTTP response codes
$status_code = [];
// Use regular expressions to extract the code from the header
preg_match('/\d\d\d/', $response, $status_code);
$bt = debug_backtrace();
$caller = array_shift($bt);
$extra = ' (from '.$caller['file'].' at line '.$caller['line'].') ';
// Check the HTTP Response code and display message if status code is not 200 (OK)
switch ($status_code[0]) {
case 200:
// Success
break;
case 503:
error_log('Your call to OpenMeetings Web Services '.$extra.' failed and returned an HTTP status of 503.
That means: Service unavailable. An internal problem prevented us from returning data to you.');
return false;
break;
case 403:
error_log('Your call to OpenMeetings Web Services '.$extra.' failed and returned an HTTP status of 403.
That means: Forbidden. You do not have permission to access this resource, or are over your rate limit.');
return false;
break;
case 400:
// You may want to fall through here and read the specific XML error
error_log('Your call to OpenMeetings Web Services '.$extra.' failed and returned an HTTP status of 400.
That means: Bad request. The parameters passed to the service did not match as expected.
The exact error is returned in the XML response.');
return false;
break;
default:
error_log('Your call to OpenMeetings Web Services '.$extra.' returned an unexpected HTTP status of: '.$status_code[0]." Request ".$request);
return false;
}
// Get the XML from the response, bypassing the header
if (!($xml = strstr($response, '<ns'))) {
$xml = null;
}
$dom = new DOMDocument();
$dom->loadXML($xml);
if ($returnAttribute == "") {
//echo "XML".$xml."<br/>";
return $this->getArray($dom);
} else {
$returnNodeList = $dom->getElementsByTagName($returnAttribute);
$ret = [];
foreach ($returnNodeList as $returnNode) {
if ($returnNodeList->length == 1) {
return $this->getArray($returnNode);
} else {
$ret[] = $this->getArray($returnNode);
}
}
return $ret;
}
}
public function getArray($node)
{
if (is_null($node) || !is_object($node)) {
return $node;
}
$array = false;
/*
echo("!!!!!!!! NODE " . XML_TEXT_NODE
. " :: name = " . $node->nodeName
. " :: local = " . $node->localName
. " :: childs ? " . $node->hasChildNodes()
. " :: count = " . ($node->hasChildNodes() ? $node->childNodes->length : -1)
. " :: type = " . $node->nodeType
. " :: val = " . $node->nodeValue
. "\n");
/*
if ($node->hasAttributes()) {
foreach ($node->attributes as $attr) {
$array[$attr->nodeName] = $attr->nodeValue;
}
}
*/
if ($node->hasChildNodes()) {
foreach ($node->childNodes as $childNode) {
if ($childNode->nodeType != XML_TEXT_NODE) {
if ($node->hasAttributes()) {
foreach ($node->attributes as $attr) {
if ($attr->localName == "nil") {
return null;
}
}
}
if ($childNode->childNodes->length == 1) {
$array[$childNode->localName] = $this->getArray($childNode);
} else {
$array[$childNode->localName][] = $this->getArray($childNode);
}
} else {
return $childNode->nodeValue;
//echo("!!!!!!!! TEXT " . $childNode->nodeValue . "\n");
//$array[$childNode->localName]
}
}
}
return $array;
}
public function getError()
{
return false;
}
public function fault()
{
return false;
}
}
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