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|   |  |   |  | 
|   | == Download ==  |   | == Download ==  | 
| − | [http://network.cmu.ac.th/cmu.oauth.class.php.zip cmu.oauth.class.php.zip]  | + | [http://myweb.cmu.ac.th/supawit.w/cmu.oauth.class.php.zip cmu.oauth.class.php.zip]  | 
|   | + |    | 
|   | == Reference ==  |   | == Reference ==  | 
|   | [https://oauth.cmu.ac.th https://oauth.cmu.ac.th]<br>  |   | [https://oauth.cmu.ac.th https://oauth.cmu.ac.th]<br>  | 
|   | [https://tools.ietf.org/html/rfc6749 https://tools.ietf.org/html/rfc6749]  |   | [https://tools.ietf.org/html/rfc6749 https://tools.ietf.org/html/rfc6749]  | 
		Revision as of 10:09, 26 February 2018
Introduction
Authorization Code Flow

from CMU OAuth
Requirement
php_curl
Methods
Constructor
Set Client ID, Client Secret, Redirect URI
Description
| __construct([string $appId, string $clientSecret, string $redirectURI])
 | 
Parameters
| name | 
description
 | 
| appId
 | 
cmu oauth Client ID
 | 
| clientSecret
 | 
cmu oauth Client Secret
 | 
| redirectURI
 | 
cmu oauth Redirect URI
 | 
Return Values
| no return value
 | 
setAppId
set Client ID
Description
| setAppId(string $appid)
 | 
Parameters
| name | 
description
 | 
| appid
 | 
cmu oauth Client ID
 | 
Return Values
| no return value
 | 
setAppSecret
Set Client Secret
Description
| setAppSecret(string $appSecret)
 | 
Parameters
| name | 
description
 | 
| appSecret
 | 
cmu oauth Client Secret
 | 
Return Values
| no return value
 | 
setCallbackUri
Set Redirect URI
Description
| setCallbackUri(string $uri)
 | 
Parameters
| name | 
description
 | 
| uri
 | 
Application Callback / Redirect URI
 | 
Return Values
| no return value
 | 
setState
Set state
Description
| setCallbackUri()
 | 
Return Values
| String
 | 
| Random String
 | 
initOauth
Initial redirect to CMU Oauth for authorization.
Return Values
| no return value
 | 
getAccessToken
Get user's authorized access token.
Description
| object getAccessToken(string $code)
 | 
Parameters
| name | 
description
 | 
| code
 | 
code that parse by CMU Oauth to redirect URI.
 | 
Return Values
| object
 | 
{
  "access_token": "66822448858031556636", 
  "expires_in": 3600, 
  "refresh_token": "23178027621214615262"
}
 
 | 
getUserInfo
Get user's information by user's authorized access token.
Description
| object getUserInfo(string $accessToken)
 | 
Parameters
| name | 
description
 | 
| accessToken
 | 
user's authorized access token
 | 
Return Values
| object
 | 
{
  "status": true,
  "data": {
    "timestamp": "2017-03-31T17:30:55.7933253+07:00",
    "itaccount_name": "jon_s",
    "citizen_id": "1111111111111",
    "student_id": "520510999",
    "prefix": {
      "en_US": "Mr.",
      "th_TH": "นาย"
    },
    "first_name": {
      "en_US": "JON",
      "th_TH": "จอน"
    },
    "last_name": {
      "en_US": "SNOW",
      "th_TH": "สโนว์"
    },
    "organization": {
      "code": "05",
      "name": {
        "en_US": "Faculty of Science",
        "th_TH": "คณะวิทยาศาสตร์"
      }
    },
    "itaccount_type": {
      "id": "AlumAcc",
      "en_US": "Alumni Account",
      "th_TH": "นักศึกษาเก่า"
    }
  }
}
 
 | 
Examples
callback.php
<?php
session_start();
// provide your application id,secret and redirect uri
$appId = 'your cmu ouath client ID';
$appSecret = 'your cmu oauth client secret';
$callbackUri = 'your cmu oauth Redirect URI';
require('cmu.oauth.class.php');
// new CMU Oauth Instance.
$cmuOauth = new cmuOauth();
// set your application id,secret and redirect uri
$cmuOauth->setAppId($appId);
$cmuOauth->setAppSecret($appSecret);
$cmuOauth->setCallbackUri($callbackUri);
if(!isset($_GET['code'])){
	//set state
	$_SESSION['oauth2state'] = $cmuOauth->setState();
	// initial redirect to CMU Oauth login page.
	$cmuOauth->initOauth();
// Check given state against previously stored one to mitigate CSRF attack
} elseif(empty($_GET['state']) || (isset($_SESSION['oauth2state']) && $_GET['state'] !== $_SESSION['oauth2state'])){
	if (isset($_SESSION['oauth2state'])) {
		unset($_SESSION['oauth2state']);
	}
	exit('Invalid state');
} else {
       // code parse from CMU Oauth to your redirect uri.
	$code = $_GET['code'];
	// get access token from code.
	$accessToken = $cmuOauth->getAccessToken($code);
	// get user information from access token.
	$userInfo = $cmuOauth->getUserInfo($accessToken->access_token);
	
	// do login process 
	// create session if status == true, refer to return values of cmuOauth::getUserInfo
	// else destroy session
	if($userInfo->status===true){
	  $sid = session_id();
	  $_SESSION["user_$sid"]=$userInfo->data->itaccount_name."@cmu.ac.th";	  
	  header("location: https://example.com/main.html");
	  exit();
	}else {
	  session_start();
	  unset($_SESSION["user_$sid"]);	  
	  session_destroy();
	  header("location: https://example.com/403.html");
	  exit();
	}	
}
?>
 
Download
cmu.oauth.class.php.zip
Reference
https://oauth.cmu.ac.th
https://tools.ietf.org/html/rfc6749