-
Notifications
You must be signed in to change notification settings - Fork 2
/
login.php
319 lines (276 loc) · 12.2 KB
/
login.php
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
<?php require_once("includes/header.inc.php");
require_once("includes/meta.inc.php");
require_once("includes/css.inc.php");
/*testing stuff and prepping security*/
setcookie("test_cookie", "test", time() + 360, '/');
$whitelist = array('token','service','persist');
require_once("includes/formtoken.inc.php");
//if already logged in, go back to home
if(isset($_SESSION) && !empty($_SESSION) && $_SESSION['user_id']){
if($_SESSION['current_page']){
header('Location: '.$_SESSION['current_page']);
}else{
header('Location: /');
}
}elseif(empty($_POST['token']) && !isset($_GET['code']) && !isset($_REQUEST['oauth_token'])){
$newToken = generateFormToken('form1');
}elseif(isset($_POST) && !empty($_POST)){
foreach ($_POST as $key=>$item) {
// Check if the value $key (fieldname from $_POST) can be found in the whitelisting array, if not, die with a short message
if (!in_array($key, $whitelist)) {
$errors[]="Please use only the fields in the form";
}
}
//if the user checked "Remember me"
if ($_POST['persist'] != "on") {unset($persist);}else{$persist = "on";}
if (verifyFormToken('form1') && empty($errors)) {
//everything is good, call the oauth service
$state = urlencode(json_encode(array("service"=>$_POST["service"], "persist"=>$persist)));
if ($_POST['service'] == "Google"){
require_once('includes/auth/google.settings.php');
$goto = 'https://accounts.google.com/o/oauth2/auth?scope=profile&redirect_uri=' . urlencode(CLIENT_REDIRECT_URL) . '&response_type=code&client_id=' . CLIENT_ID . '&access_type=online&state='.$state;
}
elseif($_POST['service'] == "Facebook"){
require_once('includes/auth/facebook.settings.php');
$_SESSION['service'] = "Facebook";
$loginURL = $helper->getLoginUrl($redirectURL, $fbPermissions);
$goto = $loginURL;
}
elseif($_POST['service'] == "Twitter"){
require_once('includes/auth/twitter.settings.php');
//&oauth_callback=http:://localhost:24649/TwitterIdentity/GetTwitterAuthorizationCallback?ForUsername=billgates
$statequery = '&oauth_callback='.$redirectURL;
//Fresh authentication
$twClient = new TwitterOAuth($consumerKey, $consumerSecret);
$request_token = $twClient->getRequestToken($redirectURL);
//Received token info from twitter
$_SESSION['token'] = $request_token['oauth_token'];
$_SESSION['token_secret'] = $request_token['oauth_token_secret'];
//If authentication returns success
if($twClient->http_code == '200'){
//Get twitter oauth url
$goto = filter_var($twClient->getAuthorizeURL($request_token['oauth_token']), FILTER_SANITIZE_URL);
}
}
header('Location: '.$goto);
} else {$errors[]="Malicious entry detected.";}
} elseif(isset($_GET['code']) || (isset($_REQUEST['oauth_token']) && $_SESSION['token'] == $_REQUEST['oauth_token'])) {
//oauth service has responded with a code
$conn = dbConnect();
if($_GET['state']){
//Google
$state = json_decode(urldecode($_GET['state']), true);
$service = trim($state["service"]);
$persist = $state["persist"];
}
if(!$state){
if($_SESSION['service'] == "Facebook"){$service = "Facebook";}
else{$service = "Twitter";}
$persist = "on";
}
$token = bin2hex(openssl_random_pseudo_bytes(64));
if($persist != "on"){unset($persist);}
if($service == "Google"){
//google oauth
try {
require_once('includes/auth/google-login-api.php');
require_once('includes/auth/google.settings.php');
$gapi = new GoogleLoginApi();
// Get the access token
$data = $gapi->GetAccessToken(CLIENT_ID, CLIENT_REDIRECT_URL, CLIENT_SECRET, $_GET['code']);
// Access Tokem
$access_token = $data['access_token'];
// Get user information
$user_info = $gapi->GetUserProfileInfo($access_token);
$oauthUser = array(
'oauth_provider'=> $service,
'oauth_uid' => $user_info['id'],
'token' => $token,
'persist' => $persist
);
}
catch(Exception $e) {
$errors[] = $e->getMessage();
exit();
}
}
elseif($service == "Facebook"){
require_once('includes/auth/facebook.settings.php');
//facebook login
if(isset($_SESSION['facebook_access_token'])){
$fb->setDefaultAccessToken($_SESSION['facebook_access_token']);
}else{
// Put short-lived access token in session
$_SESSION['facebook_access_token'] = (string) $accessToken;
// OAuth 2.0 client handler helps to manage access tokens
$oAuth2Client = $fb->getOAuth2Client();
// Exchanges a short-lived access token for a long-lived one
$longLivedAccessToken = $oAuth2Client->getLongLivedAccessToken($_SESSION['facebook_access_token']);
$_SESSION['facebook_access_token'] = (string) $longLivedAccessToken;
// Set default access token to be used in script
$fb->setDefaultAccessToken($_SESSION['facebook_access_token']);
}
// Getting user facebook profile info
try {
$profileRequest = $fb->get('/me?fields=name');
$fbUserProfile = $profileRequest->getGraphNode()->asArray();
} catch(FacebookResponseException $e) {
$errors[] = 'Graph returned an error: ' . $e->getMessage();
session_destroy();
// Redirect user back to app login page
header("Location: /login.php");
exit;
} catch(FacebookSDKException $e) {
$errors[] = 'Facebook SDK returned an error: ' . $e->getMessage();
exit;
}
$oauthUser = array(
'oauth_provider'=> $service,
'oauth_uid' => $fbUserProfile['id'],
'token' => $token,
'persist' => $persist
);
}
elseif($service = "Twitter"){
require_once('includes/auth/twitter.settings.php');
//Call Twitter API
$twClient = new TwitterOAuth($consumerKey, $consumerSecret, $_SESSION['token'] , $_SESSION['token_secret']);
//Get OAuth token
$access_token = $twClient->getAccessToken($_REQUEST['oauth_verifier']);
//If returns success
if($twClient->http_code == '200'){
//Storing access token data into session
$_SESSION['status'] = 'verified';
$_SESSION['request_vars'] = $access_token;
//Get user profile data from twitter
$userInfo = $twClient->get('account/verify_credentials');
//Insert or update user data to the database
$oauthUser = array(
'oauth_provider'=> 'Twitter',
'oauth_uid' => $userInfo->id,
'token' => $token,
'persist' => $persist
);
//Remove oauth token and secret from session
unset($_SESSION['token']);
unset($_SESSION['token_secret']);
}else{
$errors[] = 'Twitter: Some problem occurred, please try again.';
}
}
}
if ($oauthUser){
//print_r($oauthUser);
require_once('includes/auth/User.php');
require_once('includes/adjectives.php');
require_once('includes/animals.php');
$unadjective = array_rand($adjectives);
$unanimal = array_rand($animals);
$oauthUser['user_name'] = $adjectives[$unadjective]." ".$animals[$unanimal];
$oauthUser['claim'] = uniqid("ab_", true);
$user = new User($conn);
$user_db_query = $user->checkUser($oauthUser);
$userData = $user_db_query[0];
$errors = $user_db_query[1];
if(!$errors){
if(count($_COOKIE) > 0 && $persist) {
$cookie_name = "abUser";
$cookie_data = array($userData['user_id'], $token);
$iv_size = openssl_cipher_iv_length("aes-256-ctr");
$iv = openssl_random_pseudo_bytes($iv_size);
$cookie_value = openssl_encrypt(json_encode($cookie_data),"aes-256-ctr",$SECRET_KEY, 0, $iv);
$encrypted_cookie = $iv.$cookie_value;
setcookie($cookie_name, $encrypted_cookie, time() + (86400 * 30 * 3), "/");
session_destroy();
}else{
$_SESSION['user_id'] = $userData['user_id'];
}
}
if ($userData['user_id']){
if($_SESSION['current_page']){
header('Location: '.$_SESSION['current_page']);
}else{
header('Location: /');
}
}
}
?>
<style>.btn-group.special {
display: flex;
margin-bottom:15px;
}
.special .btn {
flex: 1
}
.progress{
margin:0;
border-radius:0;
}
.dashboard-comic {
border-top-left-radius: 4px;
border-top-right-radius: 4px;
}
</style>
</head>
<body>
<?php require_once 'includes/menu.inc.php';?>
<div class="container panel panel-default">
<div class="panel-body">
<div class="row">
<?php
if(!count($_COOKIE) > 0) {echo'<div class="row">
<div class="col-md-6 col-md-offset-3">
<div class="alert alert-warning" role="alert">Your browser does not allow cookies. Your login session will expire when the window closes.<a class="alert-link" href="https://www.whatismybrowser.com/guides/how-to-enable-cookies/">How to Enable Cookies.</a></div>
</div>
</div>';}
if($_GET['error']){
echo'<div class="row">
<div class="col-md-6 col-md-offset-3">
<div class="alert alert-warning" role="alert">';
if($_GET['error'] == 1){echo 'Error : Failed to receieve access token';}
elseif($_GET['error'] == 2){echo 'Error : Failed to get user information';}
else{echo 'Everything broke. I don\'t know how. Send me details at <a href="mailto:'.$SUPPORT_EMAIL.'">'.$SUPPORT_EMAIL.'</a> and know that you have bested me.';}
echo '</a></div>
</div>
</div>';}
if(is_array($errors) && count($errors) > 0) {echo'<div class="row">
<div class="col-md-6 col-md-offset-3">';
if(count($errors > 1)) {
foreach ($errors as $error){
echo' <div class="alert alert-danger" role="alert">Error: '.$error.'</div>';
}
}else{
echo' <div class="alert alert-danger" role="alert">Error: '.$error.'</div>';
}
echo '</div>
</div>';
}?>
<div class="row">
<div class="col-md-4 col-md-offset-4">
<h1>Login</h1>
<div class="alert alert-info">
<strong>Important Note:</strong> Your first login will generate a random username. You may edit the username on your Profile page once the account is created.
</div>
<form class="form-group" action="login.php" method="post">
<input type="hidden" name="token" value="<?php echo $newToken; ?>">
<div class="btn-group special" role="group" aria-label="Subscription Controls">
<input type="submit" class="btn btn-lg btn-google" name="service" value="Google">
<input type="submit" class="btn btn-lg btn-facegoose" name="service" value="Facebook">
<input type="submit" class="btn btn-lg btn-socialbird" name="service" value="Twitter">
</div>
<div class="checkbox">
<label>
<input type="checkbox" name="persist"> Remember Me
</label>
</div>
<p class="help-block">If social media buttons are greyed out, try <a href="https://kb.iu.edu/d/ahic">clearing your cache</a> (ctrl+f5). If you don't see all three social media options, try temporarily disabling ad-block.</p>
<a href="/tos">Terms of Service</a> | <a href="/privacy">Privacy Policy</a>
</form>
</div>
</div>
</div><!--row-->
</div><!--panel body-->
</div> <!-- /container -->
<?php require_once 'includes/footer.inc.php';?>
</body>
</html>