| 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 | $errors = $utils->checkForSecureConnection(); |
| 15 | $utils->sendSecurityHeaders(); |
| 16 | |
| 17 | // Initialize the HTML document with our basic elements. |
| 18 | extract($utils->initHTMLDocument('Authorization Request | KaiRo.at', 'KaiRo.at Authentication Server')); // sets $document, $html, $head, $title, $body |
| 19 | |
| 20 | if (!count($errors)) { |
| 21 | $session = $utils->initSession(); // Read session or create new session and set cookie. |
| 22 | if ($session['logged_in'] && (@$_GET['logout'] == 1)) { |
| 23 | $result = $db->prepare('UPDATE `auth_sessions` SET `logged_in` = FALSE WHERE `id` = :sessid;'); |
| 24 | if (!$result->execute(array(':sessid' => $session['id']))) { |
| 25 | $utils->log('logout_failure', 'session: '.$session['id']); |
| 26 | $errors[] = _('Unexpected error while logging out.'); |
| 27 | } |
| 28 | $session['logged_in'] = 0; |
| 29 | } |
| 30 | if (intval($session['user'])) { |
| 31 | $result = $db->prepare('SELECT `id`,`email`,`verify_hash`,`group_id` FROM `auth_users` WHERE `id` = :userid;'); |
| 32 | $result->execute(array(':userid' => $session['user'])); |
| 33 | $user = $result->fetch(PDO::FETCH_ASSOC); |
| 34 | if (!$user['id']) { |
| 35 | $utils->log('user_read_failure', 'user: '.$session['user']); |
| 36 | } |
| 37 | } |
| 38 | else { |
| 39 | $user = array('id' => 0, 'email' => ''); |
| 40 | } |
| 41 | if (is_null($session)) { |
| 42 | $errors[] = _('The session system is not working.').' '._('Please <a href="https://www.kairo.at/contact">contact KaiRo.at</a> and tell the team about this.'); |
| 43 | } |
| 44 | elseif ($session['logged_in']) { |
| 45 | // We are logged in, process authorization request. |
| 46 | $request = OAuth2\Request::createFromGlobals(); |
| 47 | $response = new OAuth2\Response(); |
| 48 | |
| 49 | // Validate the authorize request. |
| 50 | if (!$server->validateAuthorizeRequest($request, $response)) { |
| 51 | $response->send(); |
| 52 | exit(); |
| 53 | } |
| 54 | |
| 55 | $is_authorized = !array_key_exists('authorized', $_POST) ? null : (@$_POST['authorized'] === 'yes'); |
| 56 | |
| 57 | if (is_null($is_authorized) && (@$request->query['scope'] != 'email')) { |
| 58 | // Display an authorization form (unless the scope is email, which we handle as a login request below). |
| 59 | $para = $body->appendElement('p', sprintf(_('Hi %s!'), $user['email'])); |
| 60 | $para->setAttribute('class', 'userwelcome'); |
| 61 | |
| 62 | $form = $body->appendForm('', 'POST', 'authform'); |
| 63 | $form->setAttribute('id', 'authform'); |
| 64 | $domain_name = parse_url($request->query['redirect_uri'], PHP_URL_HOST); |
| 65 | if (!strlen($domain_name)) { $domain_name = $request->query['client_id']; } |
| 66 | $form->appendElement('p', sprintf(_('Do you authorize %s to access %s?'), $domain_name, $request->query['scope'])); |
| 67 | $authinput = $form->appendInputHidden('authorized', 'yes'); |
| 68 | $authinput->setAttribute('id', 'isauthorized'); |
| 69 | $submit = $form->appendInputSubmit(_('Yes')); |
| 70 | $form->appendText(' '); |
| 71 | $button = $form->appendButton(_('No')); |
| 72 | $button->setAttribute('id', 'cancelauth'); |
| 73 | } |
| 74 | elseif (@$request->query['scope'] == 'email') { |
| 75 | // Display an interstitial page for a login when we have email scope (verified email for logging in). |
| 76 | $domain_name = parse_url($request->query['redirect_uri'], PHP_URL_HOST); |
| 77 | if (!strlen($domain_name)) { $domain_name = $request->query['client_id']; } |
| 78 | // If the referrer is from the auth system and we have a different domain to redirect to, |
| 79 | // we can safely assume we just logged in with that email and skip the interstitial page. |
| 80 | $refer_domain = parse_url($_SERVER['HTTP_REFERER'], PHP_URL_HOST); |
| 81 | if (is_null($is_authorized) && ($refer_domain == $_SERVER['SERVER_NAME']) && ($refer_domain != $domain_name) && |
| 82 | (dirname($_SERVER['REQUEST_URI']) == dirname(parse_url($_SERVER['HTTP_REFERER'], PHP_URL_PATH)))) { |
| 83 | $is_authorized = true; |
| 84 | } |
| 85 | if (is_null($is_authorized)) { |
| 86 | $para = $body->appendElement('p', sprintf(_('Sign in to %s using…'), $domain_name)); |
| 87 | $para->setAttribute('class', 'signinwelcome'); |
| 88 | $form = $body->appendForm('', 'POST', 'authform'); |
| 89 | $form->setAttribute('id', 'authform'); |
| 90 | $form->setAttribute('class', 'loginarea'); |
| 91 | $ulist = $form->appendElement('ul'); |
| 92 | $ulist->setAttribute('class', 'flat emaillist'); |
| 93 | $emails = $utils->getGroupedEmails($user['group_id']); |
| 94 | if (!count($emails)) { $emails = array($user['email']); } |
| 95 | foreach ($emails as $email) { |
| 96 | $litem = $ulist->appendElement('li'); |
| 97 | $litem->appendInputRadio('user_email', 'uemail_'.md5($email), $email, $email == $user['email']); |
| 98 | $litem->appendLabel('uemail_'.md5($email), $email); |
| 99 | } |
| 100 | $para = $form->appendElement('p'); |
| 101 | $para->setAttribute('class', 'small otheremaillinks'); |
| 102 | $link = $para->appendLink('#', _('Add another email address')); |
| 103 | $link->setAttribute('id', 'addanotheremail'); // Makes the JS put the right functionality onto the link. |
| 104 | $para->appendText(' '); |
| 105 | $link = $para->appendLink('#', _('This is not me')); |
| 106 | $link->setAttribute('id', 'isnotme'); // Makes the JS put the right functionality onto the link. |
| 107 | $authinput = $form->appendInputHidden('authorized', 'yes'); |
| 108 | $authinput->setAttribute('id', 'isauthorized'); |
| 109 | $submit = $form->appendInputSubmit(_('Sign in')); |
| 110 | $para = $form->appendElement('p'); |
| 111 | $para->setAttribute('class', 'small'); |
| 112 | $link = $para->appendLink('#', _('Cancel')); |
| 113 | $link->setAttribute('id', 'cancelauth'); // Makes the JS put the right functionality onto the link. |
| 114 | $utils->setRedirect($session, $_SERVER['REQUEST_URI']); |
| 115 | } |
| 116 | } |
| 117 | if (!is_null($is_authorized)) { |
| 118 | // Switch to different user if we selected a different email within the group. |
| 119 | if (strlen(@$_POST['user_email']) && ($_POST['user_email'] != $user['email'])) { |
| 120 | $result = $db->prepare('SELECT `id`, `pwdhash`, `email`, `status`, `verify_hash`,`group_id` FROM `auth_users` WHERE `group_id` = :groupid AND `email` = :email;'); |
| 121 | $result->execute(array(':groupid' => $user['group_id'], ':email' => $_POST['user_email'])); |
| 122 | $newuser = $result->fetch(PDO::FETCH_ASSOC); |
| 123 | if ($newuser) { |
| 124 | $user = $newuser; |
| 125 | $session = $utils->getLoginSession($user['id'], $session); |
| 126 | } |
| 127 | } |
| 128 | if ($settings['piwik_enabled']) { |
| 129 | // If we do not send out an HTML file, we need to do the Piwik tracking ourselves. |
| 130 | require_once($settings['piwik_tracker_path'].'PiwikTracker.php'); |
| 131 | PiwikTracker::$URL = ((strpos($settings['piwik_url'], '://') === false) ? 'http://localhost' : '' ).$settings['piwik_url']; |
| 132 | $piwikTracker = new PiwikTracker($idSite = $settings['piwik_site_id']); |
| 133 | $piwikTracker->doTrackPageView('Handle Authorize Request'); |
| 134 | } |
| 135 | // Handle authorize request, forwarding code in GET parameters if the user has authorized your client. |
| 136 | $server->handleAuthorizeRequest($request, $response, $is_authorized, $user['id']); |
| 137 | /* For testing only |
| 138 | if ($is_authorized) { |
| 139 | // this is only here so that you get to see your code in the cURL request. Otherwise, we'd redirect back to the client |
| 140 | $code = substr($response->getHttpHeader('Location'), strpos($response->getHttpHeader('Location'), 'code=')+5, 40); |
| 141 | exit("SUCCESS! Authorization Code: $code"); |
| 142 | } |
| 143 | */ |
| 144 | $utils->resetRedirect($session); |
| 145 | $response->send(); |
| 146 | exit(); |
| 147 | } |
| 148 | } |
| 149 | else { |
| 150 | // Display login/register form. |
| 151 | $para = $body->appendElement('p', _('You need to log in or register to continue.')); |
| 152 | $para->setAttribute('class', 'logininfo'); |
| 153 | $utils->appendLoginForm($body, $session, $user); |
| 154 | $utils->setRedirect($session, str_replace('&logout=1', '', $_SERVER['REQUEST_URI'])); // Make sure to strip a logout to not get into a loop. |
| 155 | } |
| 156 | } |
| 157 | |
| 158 | if (count($errors)) { |
| 159 | $body->appendElement('p', ((count($errors) <= 1) |
| 160 | ?_('The following error was detected') |
| 161 | :_('The following errors were detected')).':'); |
| 162 | $list = $body->appendElement('ul'); |
| 163 | $list->setAttribute('class', 'flat warn'); |
| 164 | foreach ($errors as $msg) { |
| 165 | $item = $list->appendElement('li', $msg); |
| 166 | } |
| 167 | $body->appendButton(_('Back'), 'history.back();'); |
| 168 | } |
| 169 | |
| 170 | // Send HTML to client. |
| 171 | print($document->saveHTML()); |
| 172 | ?> |