142 lines
4.3 KiB
PHP
142 lines
4.3 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 OpenidloginAction 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 ($_SERVER['REQUEST_METHOD'] == 'POST') {
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$this->start_openid_login();
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} else {
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$this->show_form();
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}
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}
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function show_form($error=NULL) {
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common_show_header(_t('OpenID Login'));
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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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common_element('div', 'instructions',
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_t('Login with an OpenID account.'));
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}
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common_element_start('form', array('method' => 'POST',
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'id' => 'openidlogin',
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'action' => common_local_url('openidlogin')));
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common_input('openid_url', _t('OpenID URL'));
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common_submit('submit', _t('Login'));
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common_element_end('form');
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common_show_footer();
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}
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function start_openid_login() {
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# XXX: form token in $_SESSION to prevent XSS
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# XXX: login throttle
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$openid_url = $this->trimmed('openid_url');
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if (!common_valid_http_url($openid_url)) {
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$this->show_form(_t('OpenID must be a valid URL.'));
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return;
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}
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$consumer = oid_consumer();
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if (!$consumer) {
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common_server_error(_t('Cannot instantiate OpenID consumer object.'));
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return;
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}
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common_ensure_session();
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$auth_request = $consumer->begin($openid_url);
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// Handle failure status return values.
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if (!$auth_request) {
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$this->show_form(_t('Not a valid OpenID.'));
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return;
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} else if (Auth_OpenID::isFailure($auth_request)) {
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$this->show_form(_t('OpenID failure: ') . $auth_request->message);
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return;
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}
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$sreg_request = Auth_OpenID_SRegRequest::build(// Required
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array(),
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// Optional
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array('nickname',
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'email',
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'fullname',
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'language',
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'timezone',
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'postcode',
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'country'));
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if ($sreg_request) {
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$auth_request->addExtension($sreg_request);
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}
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$trust_root = common_root_url();
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$process_url = common_local_url('finishopenidlogin');
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if ($auth_request->shouldSendRedirect()) {
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$redirect_url = $auth_request->redirectURL($trust_root,
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$process_url);
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if (!$redirect_url) {
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} else if (Auth_OpenID::isFailure($redirect_url)) {
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$this->show_form(_t('Could not redirect to server: ') . $redirect_url->message);
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return;
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} else {
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common_redirect($redirect_url);
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}
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} else {
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// Generate form markup and render it.
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$form_id = 'openid_message';
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$form_html = $auth_request->formMarkup($trust_root, $process_url,
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false, array('id' => $form_id));
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# XXX: This is cheap, but things choke if we don't escape ampersands
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# in the HTML attributes
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$form_html = preg_replace('/&/', '&', $form_html);
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// Display an error if the form markup couldn't be generated;
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// otherwise, render the HTML.
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if (Auth_OpenID::isFailure($form_html)) {
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$this->show_form(_t('Could not create OpenID form: ') . $form_html->message);
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} else {
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common_show_header(_t('OpenID Auto-Submit'));
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common_element('p', 'instructions',
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_t('This form should automatically submit itself. '.
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'If not, click the submit button to go to your '.
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'OpenID provider.'));
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common_raw($form_html);
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common_element('script', NULL,
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'$(document).ready(function() { ' .
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' $("#'. $form_id .'").submit(); '.
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'});');
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common_show_footer();
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}
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}
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}
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}
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