442 lines
12 KiB
PHP
442 lines
12 KiB
PHP
<?php
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/*
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* Laconica - a distributed open-source microblogging tool
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* Copyright (C) 2008, Controlez-Vous, Inc.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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if (!defined('LACONICA')) { exit(1); }
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require_once(INSTALLDIR.'/lib/openid.php');
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class FinishopenidloginAction extends Action {
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function handle($args) {
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parent::handle($args);
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if (common_logged_in()) {
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common_user_error(_t('Already logged in.'));
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} else if ($_SERVER['REQUEST_METHOD'] == 'POST') {
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if ($this->arg('create')) {
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if (!$this->boolean('license')) {
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$this->show_form(_t('You can\'t register if you don\'t agree to the license.'),
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$this->trimmed('newname'));
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return;
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}
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$this->create_new_user();
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} else if ($this->arg('connect')) {
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$this->connect_user();
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} else {
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common_debug(print_r($this->args, true), __FILE__);
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$this->show_form(_t('Something weird happened.'),
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$this->trimmed('newname'));
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}
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} else {
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$this->try_login();
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}
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}
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function show_top($error=NULL) {
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if ($error) {
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common_element('div', array('class' => 'error'), $error);
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} else {
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global $config;
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common_element('div', 'instructions',
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_t('This is the first time you\'ve logged into ') .
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$config['site']['name'] .
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_t(' so we must connect your OpenID to a local account. ' .
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' You can either create a new account, or connect with ' .
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' your existing account, if you have one.'));
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}
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}
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function show_form($error=NULL, $username=NULL) {
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common_show_header(_t('OpenID Account Setup'), NULL, $error,
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array($this, 'show_top'));
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common_element_start('form', array('method' => 'POST',
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'id' => 'account_connect',
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'action' => common_local_url('finishopenidlogin')));
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common_element('h2', NULL,
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'Create new account');
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common_element('p', NULL,
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_t('Create a new user with this nickname.'));
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common_input('newname', _t('New nickname'),
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($username) ? $username : '',
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_t('1-64 lowercase letters or numbers, no punctuation or spaces'));
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common_element_start('p');
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common_element('input', array('type' => 'checkbox',
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'id' => 'license',
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'name' => 'license',
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'value' => 'true'));
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common_text(_t('My text and files are available under '));
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common_element('a', array(href => common_config('license', 'url')),
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common_config('license', 'title'));
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common_text(_t(' except this private data: password, email address, IM address, phone number.'));
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common_element_end('p');
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common_submit('create', _t('Create'));
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common_element('h2', NULL,
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'Connect existing account');
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common_element('p', NULL,
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_t('If you already have an account, login with your username and password '.
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'to connect it to your OpenID.'));
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common_input('nickname', _t('Existing nickname'));
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common_password('password', _t('Password'));
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common_submit('connect', _t('Connect'));
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common_element_end('form');
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common_show_footer();
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}
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function try_login() {
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$consumer = oid_consumer();
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$response = $consumer->complete(common_local_url('finishopenidlogin'));
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if ($response->status == Auth_OpenID_CANCEL) {
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$this->message(_t('OpenID authentication cancelled.'));
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return;
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} else if ($response->status == Auth_OpenID_FAILURE) {
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// Authentication failed; display the error message.
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$this->message(_t('OpenID authentication failed: ') . $response->message);
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} else if ($response->status == Auth_OpenID_SUCCESS) {
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// This means the authentication succeeded; extract the
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// identity URL and Simple Registration data (if it was
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// returned).
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$display = $response->getDisplayIdentifier();
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$canonical = ($response->endpoint->canonicalID) ?
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$response->endpoint->canonicalID : $response->getDisplayIdentifier();
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$sreg_resp = Auth_OpenID_SRegResponse::fromSuccessResponse($response);
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if ($sreg_resp) {
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$sreg = $sreg_resp->contents();
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}
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$user = oid_get_user($canonical);
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if ($user) {
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oid_set_last($display);
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oid_update_user($user, $sreg);
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common_set_user($user->nickname);
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$this->go_home($user->nickname);
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} else {
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$this->save_values($display, $canonical, $sreg);
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$this->show_form(NULL, $this->best_new_nickname($display, $sreg));
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}
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}
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}
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function message($msg) {
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common_show_header(_t('OpenID Login'));
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common_element('p', NULL, $msg);
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common_show_footer();
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}
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function save_values($display, $canonical, $sreg) {
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common_ensure_session();
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$_SESSION['openid_display'] = $display;
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$_SESSION['openid_canonical'] = $canonical;
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$_SESSION['openid_sreg'] = $sreg;
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}
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function get_saved_values() {
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return array($_SESSION['openid_display'],
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$_SESSION['openid_canonical'],
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$_SESSION['openid_sreg']);
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}
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function create_new_user() {
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$nickname = $this->trimmed('newname');
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if (!Validate::string($nickname, array('min_length' => 1,
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'max_length' => 64,
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'format' => VALIDATE_NUM . VALIDATE_ALPHA_LOWER))) {
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$this->show_form(_t('Nickname must have only letters and numbers and no spaces.'));
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return;
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}
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if (!User::allowed_nickname($nickname)) {
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$this->show_form(_t('Nickname not allowed.'));
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return;
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}
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if (User::staticGet('nickname', $nickname)) {
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$this->show_form(_t('Nickname already in use. Try another one.'));
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return;
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}
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list($display, $canonical, $sreg) = $this->get_saved_values();
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if (!$display || !$canonical) {
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common_server_error(_t('Stored OpenID not found.'));
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return;
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}
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# Possible race condition... let's be paranoid
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$other = oid_get_user($canonical);
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if ($other) {
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common_server_error(_t('Creating new account for OpenID that already has a user.'));
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return;
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}
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$profile = new Profile();
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$profile->nickname = $nickname;
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if ($sreg['fullname'] && strlen($sreg['fullname']) <= 255) {
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$profile->fullname = $sreg['fullname'];
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}
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if ($sreg['country']) {
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if ($sreg['postcode']) {
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# XXX: use postcode to get city and region
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# XXX: also, store postcode somewhere -- it's valuable!
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$profile->location = $sreg['postcode'] . ', ' . $sreg['country'];
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} else {
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$profile->location = $sreg['country'];
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}
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}
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# XXX save language if it's passed
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# XXX save timezone if it's passed
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$profile->profileurl = common_profile_url($nickname);
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$profile->created = DB_DataObject_Cast::dateTime(); # current time
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$id = $profile->insert();
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if (!$id) {
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common_server_error(_t('Error saving the profile.'));
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return;
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}
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$user = new User();
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$user->id = $id;
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$user->nickname = $nickname;
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$user->uri = common_user_uri($user);
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if ($sreg['email'] && Validate::email($sreg['email'], true)) {
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$user->email = $sreg['email'];
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}
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$user->created = DB_DataObject_Cast::dateTime(); # current time
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$result = $user->insert();
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if (!$result) {
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# Try to clean up...
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$profile->delete();
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}
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$result = oid_link_user($user->id, $canonical, $display);
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if (!$result) {
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# Try to clean up...
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$user->delete();
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$profile->delete();
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}
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oid_set_last($display);
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common_set_user($user->nickname);
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common_redirect(common_local_url('showstream', array('nickname' => $user->nickname)));
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}
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function connect_user() {
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$nickname = $this->trimmed('nickname');
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$password = $this->trimmed('password');
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if (!common_check_user($nickname, $password)) {
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$this->show_form(_t('Invalid username or password.'));
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return;
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}
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# They're legit!
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$user = User::staticGet('nickname', $nickname);
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list($display, $canonical, $sreg) = $this->get_saved_values();
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if (!$display || !$canonical) {
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common_server_error(_t('Stored OpenID not found.'));
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return;
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}
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$result = oid_link_user($user->id, $canonical, $display);
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if (!$result) {
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common_server_error(_t('Error connecting user to OpenID.'));
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return;
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}
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oid_update_user($user, $sreg);
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oid_set_last($display);
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common_set_user($user->nickname);
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$this->go_home($user->nickname);
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}
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function go_home($nickname) {
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$url = common_get_returnto();
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if ($url) {
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# We don't have to return to it again
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common_set_returnto(NULL);
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} else {
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$url = common_local_url('all',
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array('nickname' =>
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$nickname));
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}
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common_redirect($url);
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}
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function best_new_nickname($display, $sreg) {
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# Try the passed-in nickname
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if ($sreg['nickname']) {
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$nickname = $this->nicknamize($sreg['nickname']);
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if ($this->is_new_nickname($nickname)) {
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return $nickname;
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}
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}
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# Try the full name
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if ($sreg['fullname']) {
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$fullname = $this->nicknamize($sreg['fullname']);
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if ($this->is_new_nickname($fullname)) {
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return $fullname;
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}
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}
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# Try the URL
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$from_url = $this->openid_to_nickname($display);
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if ($from_url && $this->is_new_nickname($from_url)) {
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return $from_url;
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}
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# XXX: others?
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return NULL;
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}
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function is_new_nickname($str) {
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if (!Validate::string($str, array('min_length' => 1,
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'max_length' => 64,
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'format' => VALIDATE_NUM . VALIDATE_ALPHA_LOWER))) {
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return false;
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}
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if (!User::allowed_nickname($str)) {
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return false;
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}
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if (User::staticGet('nickname', $str)) {
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return false;
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}
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return true;
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}
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function openid_to_nickname($openid) {
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if (Auth_Yadis_identifierScheme($openid) == 'XRI') {
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return $this->xri_to_nickname($openid);
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} else {
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return $this->url_to_nickname($openid);
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}
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}
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# We try to use an OpenID URL as a legal Laconica user name in this order
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# 1. Plain hostname, like http://evanp.myopenid.com/
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# 2. One element in path, like http://profile.typekey.com/EvanProdromou/
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# or http://getopenid.com/evanprodromou
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function url_to_nickname($openid) {
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static $bad = array('query', 'user', 'password', 'port', 'fragment');
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$parts = parse_url($openid);
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# If any of these parts exist, this won't work
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foreach ($bad as $badpart) {
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if (array_key_exists($badpart, $parts)) {
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return NULL;
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}
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}
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# We just have host and/or path
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# If it's just a host...
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if (array_key_exists('host', $parts) &&
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(!array_key_exists('path', $parts) || strcmp($parts['path'], '/') == 0))
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{
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$hostparts = explode('.', $parts['host']);
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# Try to catch common idiom of nickname.service.tld
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if ((count($hostparts) > 2) &&
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(strlen($hostparts[count($hostparts) - 2]) > 3) && # try to skip .co.uk, .com.au
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(strcmp($hostparts[0], 'www') != 0))
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{
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return $this->nicknamize($hostparts[0]);
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} else {
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# Do the whole hostname
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return $this->nicknamize($parts['host']);
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}
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} else {
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if (array_key_exists('path', $parts)) {
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# Strip starting, ending slashes
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$path = preg_replace('@/$@', '', $parts['path']);
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$path = preg_replace('@^/@', '', $path);
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if (strpos($path, '/') === false) {
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return $this->nicknamize($path);
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}
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}
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}
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return NULL;
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}
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function xri_to_nickname($xri) {
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$base = $this->xri_base($xri);
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if (!$base) {
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return NULL;
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} else {
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# =evan.prodromou
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# or @gratis*evan.prodromou
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$parts = explode('*', substr($base, 1));
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return $this->nicknamize(array_pop($parts));
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}
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}
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function xri_base($xri) {
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if (substr($xri, 0, 6) == 'xri://') {
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return substr($xri, 6);
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} else {
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return $xri;
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}
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}
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# Given a string, try to make it work as a nickname
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function nicknamize($str) {
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$str = preg_replace('/\W/', '', $str);
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return strtolower($str);
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}
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}
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