4fc503d352
Signed-off-by: Josh Soref <2119212+jsoref@users.noreply.github.com>
224 lines
7.9 KiB
PHP
224 lines
7.9 KiB
PHP
<?php
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/**
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* @copyright Copyright (C) 2010-2023, the Friendica project
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*
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* @license GNU AGPL version 3 or any later version
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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
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* published by the Free Software Foundation, either version 3 of the
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* License, or (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 <https://www.gnu.org/licenses/>.
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*
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*/
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namespace Friendica\Module\Contact;
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use Friendica\Core\L10n;
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use Friendica\App;
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use Friendica\Core\Session\Capability\IHandleUserSessions;
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use Friendica\Database\Database;
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use Friendica\Model\Contact;
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use Friendica\Module\Response;
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use Friendica\Network\HTTPClient\Capability\ICanSendHttpRequests;
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use Friendica\Network\HTTPClient\Client\HttpClientAccept;
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use Friendica\Network\HTTPClient\Client\HttpClientOptions;
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use Friendica\Network\HTTPException;
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use Friendica\Util\Profiler;
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use Friendica\Util\Strings;
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use Psr\Log\LoggerInterface;
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class Redir extends \Friendica\BaseModule
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{
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/** @var IHandleUserSessions */
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private $session;
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/** @var Database */
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private $database;
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/** @var App */
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private $app;
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/** @var ICanSendHttpRequests */
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private $httpClient;
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public function __construct(ICanSendHttpRequests $httpClient, App $app, Database $database, IHandleUserSessions $session, L10n $l10n, App\BaseURL $baseUrl, App\Arguments $args, LoggerInterface $logger, Profiler $profiler, Response $response, array $server, array $parameters = [])
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{
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parent::__construct($l10n, $baseUrl, $args, $logger, $profiler, $response, $server, $parameters);
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$this->session = $session;
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$this->database = $database;
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$this->app = $app;
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$this->httpClient = $httpClient;
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}
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protected function rawContent(array $request = [])
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{
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if (!$this->session->isAuthenticated()) {
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throw new HTTPException\ForbiddenException($this->t('Access denied.'));
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}
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$url = $request['url'] ?? '';
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$cid = $this->parameters['id'] ?? 0;
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// Try magic auth before the legacy stuff
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$this->magic($cid, $url);
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$this->legacy($cid, $url);
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}
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/**
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* @param int $cid
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* @param string $url
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* @return void
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* @throws HTTPException\ForbiddenException
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* @throws HTTPException\InternalServerErrorException
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* @throws HTTPException\NotFoundException
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* @throws \ImagickException
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*/
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private function magic(int $cid, string $url)
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{
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$visitor = $this->session->getMyUrl();
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if (!empty($visitor)) {
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$this->logger->info('Got my url', ['visitor' => $visitor]);
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}
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$contact = $this->database->selectFirst('contact', ['url'], ['id' => $cid]);
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if (!$contact) {
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$this->logger->info('Contact not found', ['id' => $cid]);
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throw new HTTPException\NotFoundException($this->t('Contact not found.'));
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} else {
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$contact_url = $contact['url'];
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$this->checkUrl($contact_url, $url);
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$target_url = $url ?: $contact_url;
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}
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$basepath = Contact::getBasepath($contact_url);
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// We don't use magic auth when there is no visitor, we are on the same system, or we visit our own stuff
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if (empty($visitor) || Strings::compareLink($basepath, $this->baseUrl) || Strings::compareLink($contact_url, $visitor)) {
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$this->logger->info('Redirecting without magic', ['target' => $target_url, 'visitor' => $visitor, 'contact' => $contact_url]);
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$this->app->redirect($target_url);
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}
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// Test for magic auth on the target system
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$response = $this->httpClient->head($basepath . '/magic', [HttpClientOptions::ACCEPT_CONTENT => HttpClientAccept::HTML]);
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if ($response->isSuccess()) {
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$separator = strpos($target_url, '?') ? '&' : '?';
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$target_url .= $separator . 'zrl=' . urlencode($visitor) . '&addr=' . urlencode($contact_url);
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$this->logger->info('Redirecting with magic', ['target' => $target_url, 'visitor' => $visitor, 'contact' => $contact_url]);
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$this->app->redirect($target_url);
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} else {
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$this->logger->info('No magic for contact', ['contact' => $contact_url]);
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}
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}
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/**
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* @param int $cid
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* @param string $url
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* @return void
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* @throws HTTPException\BadRequestException
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* @throws HTTPException\ForbiddenException
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* @throws HTTPException\InternalServerErrorException
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* @throws HTTPException\NotFoundException
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*/
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private function legacy(int $cid, string $url): void
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{
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if (empty($cid)) {
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throw new HTTPException\BadRequestException($this->t('Bad Request.'));
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}
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$fields = ['id', 'uid', 'nurl', 'url', 'addr', 'name'];
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$contact = $this->database->selectFirst('contact', $fields, ['id' => $cid, 'uid' => [0, $this->session->getLocalUserId()]]);
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if (!$contact) {
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throw new HTTPException\NotFoundException($this->t('Contact not found.'));
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}
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$contact_url = $contact['url'];
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if (!empty($this->app->getContactId()) && $this->app->getContactId() == $cid) {
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// Local user is already authenticated.
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$this->checkUrl($contact_url, $url);
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$this->app->redirect($url ?: $contact_url);
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}
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if ($contact['uid'] == 0 && $this->session->getLocalUserId()) {
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// Let's have a look if there is an established connection
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// between the public contact we have found and the local user.
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$contact = $this->database->selectFirst('contact', $fields, ['nurl' => $contact['nurl'], 'uid' => $this->session->getLocalUserId()]);
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if ($contact) {
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$cid = $contact['id'];
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}
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if (!empty($this->app->getContactId()) && $this->app->getContactId() == $cid) {
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// Local user is already authenticated.
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$this->checkUrl($contact_url, $url);
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$target_url = $url ?: $contact_url;
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$this->logger->info($contact['name'] . " is already authenticated. Redirecting to " . $target_url);
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$this->app->redirect($target_url);
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}
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}
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if ($this->session->getRemoteUserId()) {
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$host = substr($this->baseUrl->getPath() . ($this->baseUrl->getPath() ? '/' . $this->baseUrl->getPath() : ''), strpos($this->baseUrl->getPath(), '://') + 3);
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$remotehost = substr($contact['addr'], strpos($contact['addr'], '@') + 1);
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// On a local instance we have to check if the local user has already authenticated
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// with the local contact. Otherwise, the local user would ask the local contact
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// for authentication everytime he/she is visiting a profile page of the local
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// contact.
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if (($host == $remotehost) && ($this->session->getRemoteContactID($this->session->get('visitor_visiting')) == $this->session->get('visitor_id'))) {
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// Remote user is already authenticated.
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$this->checkUrl($contact_url, $url);
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$target_url = $url ?: $contact_url;
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$this->logger->info($contact['name'] . " is already authenticated. Redirecting to " . $target_url);
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$this->app->redirect($target_url);
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}
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}
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if (empty($url)) {
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throw new HTTPException\BadRequestException($this->t('Bad Request.'));
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}
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// If we don't have a connected contact, redirect with
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// the 'zrl' parameter.
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$my_profile = $this->session->getMyUrl();
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if (!empty($my_profile) && !Strings::compareLink($my_profile, $url)) {
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$separator = strpos($url, '?') ? '&' : '?';
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$url .= $separator . 'zrl=' . urlencode($my_profile);
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}
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$this->logger->info('redirecting to ' . $url);
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$this->app->redirect($url);
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}
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private function checkUrl(string $contact_url, string $url)
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{
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if (empty($contact_url) || empty($url)) {
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return;
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}
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$url_host = parse_url($url, PHP_URL_HOST);
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if (empty($url_host)) {
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$url_host = parse_url($this->baseUrl, PHP_URL_HOST);
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}
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$contact_url_host = parse_url($contact_url, PHP_URL_HOST);
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if ($url_host == $contact_url_host) {
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return;
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}
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$this->logger->error('URL check host mismatch', ['contact' => $contact_url, 'url' => $url]);
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throw new HTTPException\ForbiddenException($this->t('Access denied.'));
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}
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}
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