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-rw-r--r--plugins/FacebookBridge/actions/facebookfinishlogin.php688
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diff --git a/plugins/FacebookBridge/actions/facebookfinishlogin.php b/plugins/FacebookBridge/actions/facebookfinishlogin.php
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+<?php
+/**
+ * StatusNet, the distributed open-source microblogging tool
+ *
+ * Login or register a local user based on a Facebook user
+ *
+ * PHP version 5
+ *
+ * LICENCE: This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ * @category Plugin
+ * @package StatusNet
+ * @author Zach Copley <zach@status.net>
+ * @copyright 2010 StatusNet, Inc.
+ * @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
+ * @link http://status.net/
+ */
+
+if (!defined('STATUSNET')) {
+ exit(1);
+}
+
+class FacebookfinishloginAction extends Action
+{
+ private $facebook = null; // Facebook client
+ private $fbuid = null; // Facebook user ID
+ private $fbuser = null; // Facebook user object (JSON)
+
+ function prepare($args) {
+
+ parent::prepare($args);
+
+ $this->facebook = new Facebook(
+ array(
+ 'appId' => common_config('facebook', 'appid'),
+ 'secret' => common_config('facebook', 'secret'),
+ 'cookie' => true,
+ )
+ );
+
+ // Check for a Facebook user session
+
+ $session = $this->facebook->getSession();
+ $me = null;
+
+ if ($session) {
+ try {
+ $this->fbuid = $this->facebook->getUser();
+ $this->fbuser = $this->facebook->api('/me');
+ } catch (FacebookApiException $e) {
+ common_log(LOG_ERROR, $e, __FILE__);
+ }
+ }
+
+ if (!empty($this->fbuser)) {
+
+ // OKAY, all is well... proceed to register
+
+ common_debug("Found a valid Facebook user.", __FILE__);
+ } else {
+
+ // This shouldn't happen in the regular course of things
+
+ list($proxy, $ip) = common_client_ip();
+
+ common_log(
+ LOG_WARNING,
+ sprintf(
+ 'Failed Facebook authentication attempt, proxy = %s, ip = %s.',
+ $proxy,
+ $ip
+ ),
+ __FILE__
+ );
+
+ $this->clientError(
+ _m('You must be logged into Facebook to register a local account using Facebook.')
+ );
+ }
+
+ return true;
+ }
+
+ function handle($args)
+ {
+ parent::handle($args);
+
+ if (common_is_real_login()) {
+
+ // User is already logged in, are her accounts already linked?
+
+ $flink = Foreign_link::getByForeignID($this->fbuid, FACEBOOK_SERVICE);
+
+ if (!empty($flink)) {
+
+ // User already has a linked Facebook account and shouldn't be here!
+
+ common_debug(
+ sprintf(
+ 'There\'s already a local user %d linked with Facebook user %s.',
+ $flink->user_id,
+ $this->fbuid
+ )
+ );
+
+ $this->clientError(
+ _m('There is already a local account linked with that Facebook account.')
+ );
+
+ } else {
+
+ // Possibly reconnect an existing account
+
+ $this->connectUser();
+ }
+
+ } else if ($_SERVER['REQUEST_METHOD'] == 'POST') {
+ $this->handlePost();
+ } else {
+ $this->tryLogin();
+ }
+ }
+
+ function handlePost()
+ {
+ $token = $this->trimmed('token');
+
+ if (!$token || $token != common_session_token()) {
+ $this->showForm(
+ _m('There was a problem with your session token. Try again, please.')
+ );
+ return;
+ }
+
+ if ($this->arg('create')) {
+
+ if (!$this->boolean('license')) {
+ $this->showForm(
+ _m('You can\'t register if you don\'t agree to the license.'),
+ $this->trimmed('newname')
+ );
+ return;
+ }
+
+ // We has a valid Facebook session and the Facebook user has
+ // agreed to the SN license, so create a new user
+ $this->createNewUser();
+
+ } else if ($this->arg('connect')) {
+
+ $this->connectNewUser();
+
+ } else {
+
+ $this->showForm(
+ _m('An unknown error has occured.'),
+ $this->trimmed('newname')
+ );
+ }
+ }
+
+ function showPageNotice()
+ {
+ if ($this->error) {
+
+ $this->element('div', array('class' => 'error'), $this->error);
+
+ } else {
+
+ $this->element(
+ 'div', 'instructions',
+ // TRANS: %s is the site name.
+ sprintf(
+ _m('This is the first time you\'ve logged into %s so we must connect your Facebook to a local account. You can either create a new local account, or connect with an existing local account.'),
+ common_config('site', 'name')
+ )
+ );
+ }
+ }
+
+ function title()
+ {
+ // TRANS: Page title.
+ return _m('Facebook Setup');
+ }
+
+ function showForm($error=null, $username=null)
+ {
+ $this->error = $error;
+ $this->username = $username;
+
+ $this->showPage();
+ }
+
+ function showPage()
+ {
+ parent::showPage();
+ }
+
+ /**
+ * @fixme much of this duplicates core code, which is very fragile.
+ * Should probably be replaced with an extensible mini version of
+ * the core registration form.
+ */
+ function showContent()
+ {
+ if (!empty($this->message_text)) {
+ $this->element('p', null, $this->message);
+ return;
+ }
+
+ $this->elementStart('form', array('method' => 'post',
+ 'id' => 'form_settings_facebook_connect',
+ 'class' => 'form_settings',
+ 'action' => common_local_url('facebookfinishlogin')));
+ $this->elementStart('fieldset', array('id' => 'settings_facebook_connect_options'));
+ // TRANS: Legend.
+ $this->element('legend', null, _m('Connection options'));
+ $this->elementStart('ul', 'form_data');
+ $this->elementStart('li');
+ $this->element('input', array('type' => 'checkbox',
+ 'id' => 'license',
+ 'class' => 'checkbox',
+ 'name' => 'license',
+ 'value' => 'true'));
+ $this->elementStart('label', array('class' => 'checkbox', 'for' => 'license'));
+ // TRANS: %s is the name of the license used by the user for their status updates.
+ $message = _m('My text and files are available under %s ' .
+ 'except this private data: password, ' .
+ 'email address, IM address, and phone number.');
+ $link = '<a href="' .
+ htmlspecialchars(common_config('license', 'url')) .
+ '">' .
+ htmlspecialchars(common_config('license', 'title')) .
+ '</a>';
+ $this->raw(sprintf(htmlspecialchars($message), $link));
+ $this->elementEnd('label');
+ $this->elementEnd('li');
+ $this->elementEnd('ul');
+
+ $this->elementStart('fieldset');
+ $this->hidden('token', common_session_token());
+ $this->element('legend', null,
+ // TRANS: Legend.
+ _m('Create new account'));
+ $this->element('p', null,
+ _m('Create a new user with this nickname.'));
+ $this->elementStart('ul', 'form_data');
+ $this->elementStart('li');
+ // TRANS: Field label.
+ $this->input('newname', _m('New nickname'),
+ ($this->username) ? $this->username : '',
+ _m('1-64 lowercase letters or numbers, no punctuation or spaces'));
+ $this->elementEnd('li');
+ $this->elementEnd('ul');
+ // TRANS: Submit button.
+ $this->submit('create', _m('BUTTON','Create'));
+ $this->elementEnd('fieldset');
+
+ $this->elementStart('fieldset');
+ // TRANS: Legend.
+ $this->element('legend', null,
+ _m('Connect existing account'));
+ $this->element('p', null,
+ _m('If you already have an account, login with your username and password to connect it to your Facebook.'));
+ $this->elementStart('ul', 'form_data');
+ $this->elementStart('li');
+ // TRANS: Field label.
+ $this->input('nickname', _m('Existing nickname'));
+ $this->elementEnd('li');
+ $this->elementStart('li');
+ $this->password('password', _m('Password'));
+ $this->elementEnd('li');
+ $this->elementEnd('ul');
+ // TRANS: Submit button.
+ $this->submit('connect', _m('BUTTON','Connect'));
+ $this->elementEnd('fieldset');
+
+ $this->elementEnd('fieldset');
+ $this->elementEnd('form');
+ }
+
+ function message($msg)
+ {
+ $this->message_text = $msg;
+ $this->showPage();
+ }
+
+ function createNewUser()
+ {
+ if (common_config('site', 'closed')) {
+ // TRANS: Client error trying to register with registrations not allowed.
+ $this->clientError(_m('Registration not allowed.'));
+ return;
+ }
+
+ $invite = null;
+
+ if (common_config('site', 'inviteonly')) {
+ $code = $_SESSION['invitecode'];
+ if (empty($code)) {
+ // TRANS: Client error trying to register with registrations 'invite only'.
+ $this->clientError(_m('Registration not allowed.'));
+ return;
+ }
+
+ $invite = Invitation::staticGet($code);
+
+ if (empty($invite)) {
+ // TRANS: Client error trying to register with an invalid invitation code.
+ $this->clientError(_m('Not a valid invitation code.'));
+ return;
+ }
+ }
+
+ $nickname = $this->trimmed('newname');
+
+ if (!Validate::string($nickname, array('min_length' => 1,
+ 'max_length' => 64,
+ 'format' => NICKNAME_FMT))) {
+ $this->showForm(_m('Nickname must have only lowercase letters and numbers and no spaces.'));
+ return;
+ }
+
+ if (!User::allowed_nickname($nickname)) {
+ $this->showForm(_m('Nickname not allowed.'));
+ return;
+ }
+
+ if (User::staticGet('nickname', $nickname)) {
+ $this->showForm(_m('Nickname already in use. Try another one.'));
+ return;
+ }
+
+ $args = array(
+ 'nickname' => $nickname,
+ 'fullname' => $this->fbuser['first_name']
+ . ' ' . $this->fbuser['last_name'],
+ 'homepage' => $this->fbuser['website'],
+ 'bio' => $this->fbuser['about'],
+ 'location' => $this->fbuser['location']['name']
+ );
+
+ // It's possible that the email address is already in our
+ // DB. It's a unique key, so we need to check
+ if ($this->isNewEmail($this->fbuser['email'])) {
+ $args['email'] = $this->fbuser['email'];
+ $args['email_confirmed'] = true;
+ }
+
+ if (!empty($invite)) {
+ $args['code'] = $invite->code;
+ }
+
+ $user = User::register($args);
+ $result = $this->flinkUser($user->id, $this->fbuid);
+
+ if (!$result) {
+ $this->serverError(_m('Error connecting user to Facebook.'));
+ return;
+ }
+
+ // Add a Foreign_user record
+ Facebookclient::addFacebookUser($this->fbuser);
+
+ $this->setAvatar($user);
+
+ common_set_user($user);
+ common_real_login(true);
+
+ common_log(
+ LOG_INFO,
+ sprintf(
+ 'Registered new user %s (%d) from Facebook user %s, (fbuid %d)',
+ $user->nickname,
+ $user->id,
+ $this->fbuser['name'],
+ $this->fbuid
+ ),
+ __FILE__
+ );
+
+ $this->goHome($user->nickname);
+ }
+
+ /*
+ * Attempt to download the user's Facebook picture and create a
+ * StatusNet avatar for the new user.
+ */
+ function setAvatar($user)
+ {
+ $picUrl = sprintf(
+ 'http://graph.facebook.com/%s/picture?type=large',
+ $this->fbuid
+ );
+
+ // fetch the picture from Facebook
+ $client = new HTTPClient();
+
+ // fetch the actual picture
+ $response = $client->get($picUrl);
+
+ if ($response->isOk()) {
+
+ $finalUrl = $client->getUrl();
+
+ // Make sure the filename is unique becuase it's possible for a user
+ // to deauthorize our app, and then come back in as a new user but
+ // have the same Facebook picture (avatar URLs have a unique index
+ // and their URLs are based on the filenames).
+ $filename = 'facebook-' . common_good_rand(4) . '-'
+ . substr(strrchr($finalUrl, '/'), 1);
+
+ $ok = file_put_contents(
+ Avatar::path($filename),
+ $response->getBody()
+ );
+
+ if (!$ok) {
+ common_log(
+ LOG_WARNING,
+ sprintf(
+ 'Couldn\'t save Facebook avatar %s',
+ $tmp
+ ),
+ __FILE__
+ );
+
+ } else {
+
+ // save it as an avatar
+ $profile = $user->getProfile();
+
+ if ($profile->setOriginal($filename)) {
+ common_log(
+ LOG_INFO,
+ sprintf(
+ 'Saved avatar for %s (%d) from Facebook picture for '
+ . '%s (fbuid %d), filename = %s',
+ $user->nickname,
+ $user->id,
+ $this->fbuser['name'],
+ $this->fbuid,
+ $filename
+ ),
+ __FILE__
+ );
+ }
+ }
+ }
+ }
+
+ function connectNewUser()
+ {
+ $nickname = $this->trimmed('nickname');
+ $password = $this->trimmed('password');
+
+ if (!common_check_user($nickname, $password)) {
+ $this->showForm(_m('Invalid username or password.'));
+ return;
+ }
+
+ $user = User::staticGet('nickname', $nickname);
+
+ if (!empty($user)) {
+ common_debug(
+ sprintf(
+ 'Found a legit user to connect to Facebook: %s (%d)',
+ $user->nickname,
+ $user->id
+ ),
+ __FILE__
+ );
+ }
+
+ $this->tryLinkUser($user);
+
+ common_set_user($user);
+ common_real_login(true);
+
+ $this->goHome($user->nickname);
+ }
+
+ function connectUser()
+ {
+ $user = common_current_user();
+ $this->tryLinkUser($user);
+ common_redirect(common_local_url('facebookfinishlogin'), 303);
+ }
+
+ function tryLinkUser($user)
+ {
+ $result = $this->flinkUser($user->id, $this->fbuid);
+
+ if (empty($result)) {
+ $this->serverError(_m('Error connecting user to Facebook.'));
+ return;
+ }
+
+ common_debug(
+ sprintf(
+ 'Connected Facebook user %s (fbuid %d) to local user %s (%d)',
+ $this->fbuser['name'],
+ $this->fbuid,
+ $user->nickname,
+ $user->id
+ ),
+ __FILE__
+ );
+ }
+
+ function tryLogin()
+ {
+ common_debug(
+ sprintf(
+ 'Trying login for Facebook user %s',
+ $this->fbuid
+ ),
+ __FILE__
+ );
+
+ $flink = Foreign_link::getByForeignID($this->fbuid, FACEBOOK_SERVICE);
+
+ if (!empty($flink)) {
+ $user = $flink->getUser();
+
+ if (!empty($user)) {
+
+ common_log(
+ LOG_INFO,
+ sprintf(
+ 'Logged in Facebook user %s as user %d (%s)',
+ $this->fbuid,
+ $user->nickname,
+ $user->id
+ ),
+ __FILE__
+ );
+
+ common_set_user($user);
+ common_real_login(true);
+ $this->goHome($user->nickname);
+ }
+
+ } else {
+
+ common_debug(
+ sprintf(
+ 'No flink found for fbuid: %s - new user',
+ $this->fbuid
+ ),
+ __FILE__
+ );
+
+ $this->showForm(null, $this->bestNewNickname());
+ }
+ }
+
+ function goHome($nickname)
+ {
+ $url = common_get_returnto();
+ if ($url) {
+ // We don't have to return to it again
+ common_set_returnto(null);
+ } else {
+ $url = common_local_url('all',
+ array('nickname' =>
+ $nickname));
+ }
+
+ common_redirect($url, 303);
+ }
+
+ function flinkUser($user_id, $fbuid)
+ {
+ $flink = new Foreign_link();
+ $flink->user_id = $user_id;
+ $flink->foreign_id = $fbuid;
+ $flink->service = FACEBOOK_SERVICE;
+
+ // Pull the access token from the Facebook cookies
+ $flink->credentials = $this->facebook->getAccessToken();
+
+ $flink->created = common_sql_now();
+
+ $flink_id = $flink->insert();
+
+ return $flink_id;
+ }
+
+ function bestNewNickname()
+ {
+ if (!empty($this->fbuser['name'])) {
+ $nickname = $this->nicknamize($this->fbuser['name']);
+ if ($this->isNewNickname($nickname)) {
+ return $nickname;
+ }
+ }
+
+ // Try the full name
+
+ $fullname = trim($this->fbuser['first_name'] .
+ ' ' . $this->fbuser['last_name']);
+
+ if (!empty($fullname)) {
+ $fullname = $this->nicknamize($fullname);
+ if ($this->isNewNickname($fullname)) {
+ return $fullname;
+ }
+ }
+
+ return null;
+ }
+
+ /**
+ * Given a string, try to make it work as a nickname
+ */
+ function nicknamize($str)
+ {
+ $str = preg_replace('/\W/', '', $str);
+ return strtolower($str);
+ }
+
+ /*
+ * Is the desired nickname already taken?
+ *
+ * @return boolean result
+ */
+ function isNewNickname($str)
+ {
+ if (
+ !Validate::string(
+ $str,
+ array(
+ 'min_length' => 1,
+ 'max_length' => 64,
+ 'format' => NICKNAME_FMT
+ )
+ )
+ ) {
+ return false;
+ }
+
+ if (!User::allowed_nickname($str)) {
+ return false;
+ }
+
+ if (User::staticGet('nickname', $str)) {
+ return false;
+ }
+
+ return true;
+ }
+
+ /*
+ * Do we already have a user record with this email?
+ * (emails have to be unique but they can change)
+ *
+ * @param string $email the email address to check
+ *
+ * @return boolean result
+ */
+ function isNewEmail($email)
+ {
+ // we shouldn't have to validate the format
+ $result = User::staticGet('email', $email);
+
+ if (empty($result)) {
+ common_debug("XXXXXXXXXXXXXXXXXX We've never seen this email before!!!");
+ return true;
+ }
+ common_debug("XXXXXXXXXXXXXXXXXX dupe email address!!!!");
+
+ return false;
+ }
+
+}
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-19 04:14:40 +0000