201 lines
7.1 KiB
PHP
201 lines
7.1 KiB
PHP
<?php
|
|
/**
|
|
* @copyright Copyright (C) 2020, Friendica
|
|
*
|
|
* @license GNU AGPL version 3 or any later version
|
|
*
|
|
* 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 <https://www.gnu.org/licenses/>.
|
|
*
|
|
*/
|
|
|
|
use Friendica\App;
|
|
use Friendica\Core\Logger;
|
|
use Friendica\Core\Session;
|
|
use Friendica\Core\System;
|
|
use Friendica\Database\DBA;
|
|
use Friendica\DI;
|
|
use Friendica\Model\Contact;
|
|
use Friendica\Model\Profile;
|
|
use Friendica\Util\Network;
|
|
use Friendica\Util\Strings;
|
|
|
|
function redir_init(App $a) {
|
|
if (!Session::isAuthenticated()) {
|
|
throw new \Friendica\Network\HTTPException\ForbiddenException(DI::l10n()->t('Access denied.'));
|
|
}
|
|
|
|
$url = $_GET['url'] ?? '';
|
|
$quiet = !empty($_GET['quiet']) ? '&quiet=1' : '';
|
|
|
|
if ($a->argc > 1 && intval($a->argv[1])) {
|
|
$cid = intval($a->argv[1]);
|
|
} else {
|
|
$cid = 0;
|
|
}
|
|
|
|
// Try magic auth before the legacy stuff
|
|
redir_magic($a, $cid, $url);
|
|
|
|
if (empty($cid)) {
|
|
throw new \Friendica\Network\HTTPException\BadRequestException(DI::l10n()->t('Bad Request.'));
|
|
}
|
|
|
|
$fields = ['id', 'uid', 'nurl', 'url', 'addr', 'name', 'network', 'poll', 'issued-id', 'dfrn-id', 'duplex', 'pending'];
|
|
$contact = DBA::selectFirst('contact', $fields, ['id' => $cid, 'uid' => [0, local_user()]]);
|
|
if (!DBA::isResult($contact)) {
|
|
throw new \Friendica\Network\HTTPException\NotFoundException(DI::l10n()->t('Contact not found.'));
|
|
}
|
|
|
|
$contact_url = $contact['url'];
|
|
|
|
if (!empty($a->contact['id']) && $a->contact['id'] == $cid) {
|
|
// Local user is already authenticated.
|
|
redir_check_url($contact_url, $url);
|
|
$a->redirect($url ?: $contact_url);
|
|
}
|
|
|
|
if ($contact['uid'] == 0 && local_user()) {
|
|
// Let's have a look if there is an established connection
|
|
// between the public contact we have found and the local user.
|
|
$contact = DBA::selectFirst('contact', $fields, ['nurl' => $contact['nurl'], 'uid' => local_user()]);
|
|
|
|
if (DBA::isResult($contact)) {
|
|
$cid = $contact['id'];
|
|
}
|
|
|
|
if (!empty($a->contact['id']) && $a->contact['id'] == $cid) {
|
|
// Local user is already authenticated.
|
|
redir_check_url($contact_url, $url);
|
|
$target_url = $url ?: $contact_url;
|
|
Logger::log($contact['name'] . " is already authenticated. Redirecting to " . $target_url, Logger::DEBUG);
|
|
$a->redirect($target_url);
|
|
}
|
|
}
|
|
|
|
if (remote_user()) {
|
|
$host = substr(DI::baseUrl()->getUrlPath() . (DI::baseUrl()->getUrlPath() ? '/' . DI::baseUrl()->getUrlPath() : ''), strpos(DI::baseUrl()->getUrlPath(), '://') + 3);
|
|
$remotehost = substr($contact['addr'], strpos($contact['addr'], '@') + 1);
|
|
|
|
// On a local instance we have to check if the local user has already authenticated
|
|
// with the local contact. Otherwise the local user would ask the local contact
|
|
// for authentification everytime he/she is visiting a profile page of the local
|
|
// contact.
|
|
if (($host == $remotehost) && (Session::getRemoteContactID(Session::get('visitor_visiting')) == Session::get('visitor_id'))) {
|
|
// Remote user is already authenticated.
|
|
redir_check_url($contact_url, $url);
|
|
$target_url = $url ?: $contact_url;
|
|
Logger::log($contact['name'] . " is already authenticated. Redirecting to " . $target_url, Logger::DEBUG);
|
|
$a->redirect($target_url);
|
|
}
|
|
}
|
|
|
|
// Doing remote auth with dfrn.
|
|
if (local_user() && (!empty($contact['dfrn-id']) || !empty($contact['issued-id'])) && empty($contact['pending'])) {
|
|
$dfrn_id = $orig_id = (($contact['issued-id']) ? $contact['issued-id'] : $contact['dfrn-id']);
|
|
|
|
if ($contact['duplex'] && $contact['issued-id']) {
|
|
$orig_id = $contact['issued-id'];
|
|
$dfrn_id = '1:' . $orig_id;
|
|
}
|
|
if ($contact['duplex'] && $contact['dfrn-id']) {
|
|
$orig_id = $contact['dfrn-id'];
|
|
$dfrn_id = '0:' . $orig_id;
|
|
}
|
|
|
|
$sec = Strings::getRandomHex();
|
|
|
|
$fields = ['uid' => local_user(), 'cid' => $cid, 'dfrn_id' => $dfrn_id,
|
|
'sec' => $sec, 'expire' => time() + 45];
|
|
DBA::insert('profile_check', $fields);
|
|
|
|
Logger::log('mod_redir: ' . $contact['name'] . ' ' . $sec, Logger::DEBUG);
|
|
|
|
$dest = (!empty($url) ? '&destination_url=' . $url : '');
|
|
|
|
System::externalRedirect($contact['poll'] . '?dfrn_id=' . $dfrn_id
|
|
. '&dfrn_version=' . DFRN_PROTOCOL_VERSION . '&type=profile&sec=' . $sec . $dest . $quiet);
|
|
}
|
|
|
|
if (empty($url)) {
|
|
throw new \Friendica\Network\HTTPException\BadRequestException(DI::l10n()->t('Bad Request.'));
|
|
}
|
|
|
|
// If we don't have a connected contact, redirect with
|
|
// the 'zrl' parameter.
|
|
$my_profile = Profile::getMyURL();
|
|
|
|
if (!empty($my_profile) && !Strings::compareLink($my_profile, $url)) {
|
|
$separator = strpos($url, '?') ? '&' : '?';
|
|
|
|
$url .= $separator . 'zrl=' . urlencode($my_profile);
|
|
}
|
|
|
|
Logger::log('redirecting to ' . $url, Logger::DEBUG);
|
|
$a->redirect($url);
|
|
}
|
|
|
|
function redir_magic($a, $cid, $url)
|
|
{
|
|
$visitor = Profile::getMyURL();
|
|
if (!empty($visitor)) {
|
|
Logger::info('Got my url', ['visitor' => $visitor]);
|
|
}
|
|
|
|
$contact = DBA::selectFirst('contact', ['url'], ['id' => $cid]);
|
|
if (!DBA::isResult($contact)) {
|
|
Logger::info('Contact not found', ['id' => $cid]);
|
|
throw new \Friendica\Network\HTTPException\NotFoundException(DI::l10n()->t('Contact not found.'));
|
|
} else {
|
|
$contact_url = $contact['url'];
|
|
redir_check_url($contact_url, $url);
|
|
$target_url = $url ?: $contact_url;
|
|
}
|
|
|
|
$basepath = Contact::getBasepath($contact_url);
|
|
|
|
// We don't use magic auth when there is no visitor, we are on the same system or we visit our own stuff
|
|
if (empty($visitor) || Strings::compareLink($basepath, DI::baseUrl()) || Strings::compareLink($contact_url, $visitor)) {
|
|
Logger::info('Redirecting without magic', ['target' => $target_url, 'visitor' => $visitor, 'contact' => $contact_url]);
|
|
DI::app()->redirect($target_url);
|
|
}
|
|
|
|
// Test for magic auth on the target system
|
|
$serverret = Network::curl($basepath . '/magic');
|
|
if ($serverret->isSuccess()) {
|
|
$separator = strpos($target_url, '?') ? '&' : '?';
|
|
$target_url .= $separator . 'zrl=' . urlencode($visitor) . '&addr=' . urlencode($contact_url);
|
|
|
|
Logger::info('Redirecting with magic', ['target' => $target_url, 'visitor' => $visitor, 'contact' => $contact_url]);
|
|
System::externalRedirect($target_url);
|
|
} else {
|
|
Logger::info('No magic for contact', ['contact' => $contact_url]);
|
|
}
|
|
}
|
|
|
|
function redir_check_url(string $contact_url, string $url)
|
|
{
|
|
if (empty($contact_url) || empty($url)) {
|
|
return;
|
|
}
|
|
|
|
$url_host = parse_url($url, PHP_URL_HOST);
|
|
$contact_url_host = parse_url($contact_url, PHP_URL_HOST);
|
|
|
|
if ($url_host == $contact_url_host) {
|
|
return;
|
|
}
|
|
|
|
Logger::error('URL check host mismatch', ['contact' => $contact_url, 'url' => $url]);
|
|
throw new \Friendica\Network\HTTPException\ForbiddenException(DI::l10n()->t('Access denied.'));
|
|
}
|