ILIAS  release_5-3 Revision v5.3.23-19-g915713cf615
Facebook.php
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1<?php
2
10
11
15 const STAGE_INIT = 'facebook:init';
16
17
21 const AUTHID = 'facebook:AuthId';
22
23
27 private $api_key;
28
29
33 private $secret;
34
35
39 private $req_perms;
40
41
54 private $user_fields;
55
56
63 public function __construct($info, $config) {
64 assert('is_array($info)');
65 assert('is_array($config)');
66
67 // Call the parent constructor first, as required by the interface
68 parent::__construct($info, $config);
69
70 $cfgParse = SimpleSAML_Configuration::loadFromArray($config, 'authsources[' . var_export($this->authId, TRUE) . ']');
71
72 $this->api_key = $cfgParse->getString('api_key');
73 $this->secret = $cfgParse->getString('secret');
74 $this->req_perms = $cfgParse->getString('req_perms', NULL);
75 $this->user_fields = $cfgParse->getString('user_fields', NULL);
76 }
77
78
84 public function authenticate(&$state) {
85 assert('is_array($state)');
86
87 // We are going to need the authId in order to retrieve this authentication source later
90
91 $facebook = new sspmod_authfacebook_Facebook(array('appId' => $this->api_key, 'secret' => $this->secret), $state);
92 $facebook->destroySession();
93
94 $linkback = SimpleSAML\Module::getModuleURL('authfacebook/linkback.php');
95 $url = $facebook->getLoginUrl(array('redirect_uri' => $linkback, 'scope' => $this->req_perms));
97
99 }
100
101
102 public function finalStep(&$state) {
103 assert('is_array($state)');
104
105 $facebook = new sspmod_authfacebook_Facebook(array('appId' => $this->api_key, 'secret' => $this->secret), $state);
106 $uid = $facebook->getUser();
107
108 if (isset($uid) && $uid) {
109 try {
110 $info = $facebook->api("/" . $uid . ($this->user_fields ? "?fields=" . $this->user_fields : ""));
111 } catch (FacebookApiException $e) {
112 throw new SimpleSAML_Error_AuthSource($this->authId, 'Error getting user profile.', $e);
113 }
114 }
115
116 if (!isset($info)) {
117 throw new SimpleSAML_Error_AuthSource($this->authId, 'Error getting user profile.');
118 }
119
120 $attributes = array();
121 foreach($info AS $key => $value) {
122 if (is_string($value) && !empty($value)) {
123 $attributes['facebook.' . $key] = array((string)$value);
124 }
125 }
126
127 if (array_key_exists('third_party_id', $info)) {
128 $attributes['facebook_user'] = array($info['third_party_id'] . '@facebook.com');
129 } else {
130 $attributes['facebook_user'] = array($uid . '@facebook.com');
131 }
132
133 $attributes['facebook_targetedID'] = array('http://facebook.com!' . $uid);
134 $attributes['facebook_cn'] = array($info['name']);
135
136 SimpleSAML\Logger::debug('Facebook Returned Attributes: '. implode(", ", array_keys($attributes)));
137
138 $state['Attributes'] = $attributes;
139
140 $facebook->destroySession();
141 }
142
143}
if(!array_key_exists('stateid', $_REQUEST)) $state
Handle linkback() response from LinkedIn.
Definition: linkback.php:10
An exception for terminatinating execution or to throw for unit testing.
Copyright 2011 Facebook, Inc.
static debug($string)
Definition: Logger.php:213
static getModuleURL($resource, array $parameters=array())
Get absolute URL to a specified module resource.
Definition: Module.php:303
static redirectTrustedURL($url, $parameters=array())
This function redirects to the specified URL without performing any security checks.
Definition: HTTP.php:962
static saveState(&$state, $stage, $rawId=false)
Save the state.
Definition: State.php:194
static loadFromArray($config, $location='[ARRAY]', $instance=null)
Loads a configuration from the given array.
$api_key
Facebook App ID or API Key.
Definition: Facebook.php:27
authenticate(&$state)
Log-in using Facebook platform.
Definition: Facebook.php:84
const AUTHID
The key of the AuthId field in the state.
Definition: Facebook.php:21
__construct($info, $config)
Constructor for this authentication source.
Definition: Facebook.php:63
$user_fields
A comma-separated list of user profile fields to request.
Definition: Facebook.php:54
$req_perms
Which additional data permissions to request from user.
Definition: Facebook.php:39
const STAGE_INIT
The string used to identify our states.
Definition: Facebook.php:15
Extends the BaseFacebook class with the intent of using PHP sessions to store user ids and access tok...
Definition: Facebook.php:10
$key
Definition: croninfo.php:18
$info
Definition: index.php:5
$url
$attributes