| 1 | <?php |
| 2 | /* This Source Code Form is subject to the terms of the Mozilla Public |
| 3 | * License, v. 2.0. If a copy of the MPL was not distributed with this file, |
| 4 | * You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| 5 | |
| 6 | // Called e.g. as /authorize?response_type=code&client_id=testclient&state=f00bar&scope=email&redirect_uri=http%3A%2F%2Ffake.example.com%2F |
| 7 | // This either redirects to the redirect URL with errors or success added as GET parameters, |
| 8 | // or sends a HTML page asking for login / permission to scope (email is always granted in this system but not always for OAuth2 generically) |
| 9 | // or sends errors as a JSON document (hopefully shouldn't but seen that in testing). |
| 10 | |
| 11 | // Include the common auth system files (including the OAuth2 Server object). |
| 12 | require_once(__DIR__.'/authsystem.inc.php'); |
| 13 | |
| 14 | // Start HTML document as a DOM object. |
| 15 | extract(ExtendedDocument::initHTML5()); // sets $document, $html, $head, $title, $body |
| 16 | $document->formatOutput = true; // we want a nice output |
| 17 | $style = $head->appendElement('link'); |
| 18 | $style->setAttribute('rel', 'stylesheet'); |
| 19 | $style->setAttribute('href', 'authsystem.css'); |
| 20 | $head->appendJSFile('authsystem.js'); |
| 21 | $title->appendText('Authorization Request | KaiRo.at'); |
| 22 | $h1 = $body->appendElement('h1', 'KaiRo.at Authentication Server'); |
| 23 | |
| 24 | $errors = $utils->checkForSecureConnection(); |
| 25 | $utils->sendSecurityHeaders(); |
| 26 | |
| 27 | $para = $body->appendElement('p', _('This login system does not work without JavaScript. Please activate JavaScript for this site to log in.')); |
| 28 | $para->setAttribute('id', 'jswarning'); |
| 29 | $para->setAttribute('class', 'warn'); |
| 30 | |
| 31 | if (!count($errors)) { |
| 32 | $session = $utils->initSession(); // Read session or create new session and set cookie. |
| 33 | if (intval($session['user'])) { |
| 34 | $result = $db->prepare('SELECT `id`,`email`,`verify_hash` FROM `auth_users` WHERE `id` = :userid;'); |
| 35 | $result->execute(array(':userid' => $session['user'])); |
| 36 | $user = $result->fetch(PDO::FETCH_ASSOC); |
| 37 | if (!$user['id']) { |
| 38 | $utils->log('user_read_failure', 'user: '.$session['user']); |
| 39 | } |
| 40 | } |
| 41 | else { |
| 42 | $user = array('id' => 0, 'email' => ''); |
| 43 | } |
| 44 | $pagetype = 'default'; |
| 45 | if (is_null($session)) { |
| 46 | $errors[] = _('The session system is not working. Please <a href="https://www.kairo.at/contact">contact KaiRo.at</a> and tell the team about this.'); |
| 47 | } |
| 48 | elseif ($session['logged_in']) { |
| 49 | // We are logged in, process authorization request. |
| 50 | $request = OAuth2\Request::createFromGlobals(); |
| 51 | $response = new OAuth2\Response(); |
| 52 | |
| 53 | // Validate the authorize request. |
| 54 | if (!$server->validateAuthorizeRequest($request, $response)) { |
| 55 | $response->send(); |
| 56 | exit(); |
| 57 | } |
| 58 | |
| 59 | // Display an authorization form (unless the scope is email, which we always grant in this system). |
| 60 | if (empty($_POST) && (@$request->query['scope'] != 'email')) { |
| 61 | $para = $body->appendElement('p', sprintf(_('Hi %s!'), $user['email'])); |
| 62 | $para->setAttribute('class', 'userwelcome'); |
| 63 | |
| 64 | $form = $body->appendForm('', 'POST', 'authform'); |
| 65 | $form->setAttribute('id', 'authform'); |
| 66 | $form->appendElement('p', sprintf(_('Do you authorize %s to access %s?'), $request->query['client_id'], $request->query['scope'])); |
| 67 | $submit = $form->appendInputSubmit(_('yes')); |
| 68 | $submit->setAttribute('name', 'authorized'); |
| 69 | $form->appendText(' '); |
| 70 | $submit = $form->appendInputSubmit(_('no')); |
| 71 | $submit->setAttribute('name', 'authorized'); |
| 72 | } |
| 73 | else { |
| 74 | // Handle authorize request, forwarding code in GET parameters if the user has authorized your client. |
| 75 | $is_authorized = ((@$_POST['authorized'] === 'yes') || ($request->query['scope'] == 'email')); |
| 76 | $server->handleAuthorizeRequest($request, $response, $is_authorized, $user['id']); |
| 77 | /* For testing only |
| 78 | if ($is_authorized) { |
| 79 | // this is only here so that you get to see your code in the cURL request. Otherwise, we'd redirect back to the client |
| 80 | $code = substr($response->getHttpHeader('Location'), strpos($response->getHttpHeader('Location'), 'code=')+5, 40); |
| 81 | exit("SUCCESS! Authorization Code: $code"); |
| 82 | } |
| 83 | */ |
| 84 | $response->send(); |
| 85 | exit(); |
| 86 | } |
| 87 | } |
| 88 | else { |
| 89 | // Display login/register form. |
| 90 | $para = $body->appendElement('p', _('You need to log in or register to continue.')); |
| 91 | $para->setAttribute('class', 'logininfo'); |
| 92 | $utils->appendLoginForm($body, $session, $user); |
| 93 | // Save the request in the session so we can get back to fulfilling it. |
| 94 | $result = $db->prepare('UPDATE `auth_sessions` SET `saved_redirect` = :redir WHERE `id` = :sessid;'); |
| 95 | if (!$result->execute(array(':redir' => $_SERVER['REQUEST_URI'], ':sessid' => $session['id']))) { |
| 96 | $utils->log('redir_save_failure', 'session: '.$session['id'].', redirect: '.$_SERVER['REQUEST_URI']); |
| 97 | } |
| 98 | } |
| 99 | } |
| 100 | |
| 101 | if (count($errors)) { |
| 102 | $body->appendElement('p', ((count($errors) <= 1) |
| 103 | ?_('The following error was detected') |
| 104 | :_('The following errors were detected')).':'); |
| 105 | $list = $body->appendElement('ul'); |
| 106 | $list->setAttribute('class', 'flat warn'); |
| 107 | foreach ($errors as $msg) { |
| 108 | $item = $list->appendElement('li', $msg); |
| 109 | } |
| 110 | $body->appendButton(_('Back'), 'history.back();'); |
| 111 | } |
| 112 | |
| 113 | // Send HTML to client. |
| 114 | print($document->saveHTML()); |
| 115 | ?> |