Friendica Communications Platform (please note that this is a clone of the repository at github, issues are handled there) https://friendi.ca
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friendica/src/App.php

767 lines
21 KiB

<?php
/**
* @copyright Copyright (C) 2010-2022, the Friendica project
*
* @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/>.
*
*/
namespace Friendica;
use Exception;
use Friendica\App\Arguments;
use Friendica\App\BaseURL;
use Friendica\Capabilities\ICanCreateResponses;
use Friendica\Core\Config\Factory\Config;
use Friendica\Core\Session\Capability\IHandleUserSessions;
use Friendica\Model\User;
use Friendica\Module\Maintenance;
use Friendica\Security\Authentication;
use Friendica\Core\Config\ValueObject\Cache;
use Friendica\Core\Config\Capability\IManageConfigValues;
use Friendica\Core\PConfig\Capability\IManagePersonalConfigValues;
use Friendica\Core\L10n;
use Friendica\Core\System;
use Friendica\Core\Theme;
use Friendica\Database\Database;
use Friendica\Model\Contact;
use Friendica\Model\Profile;
use Friendica\Module\Special\HTTPException as ModuleHTTPException;
use Friendica\Network\HTTPException;
use Friendica\Util\DateTimeFormat;
use Friendica\Util\HTTPInputData;
use Friendica\Util\HTTPSignature;
use Friendica\Util\Profiler;
use Friendica\Util\Strings;
use Psr\Log\LoggerInterface;
/**
* Our main application structure for the life of this page.
*
* Primarily deals with the URL that got us here
* and tries to make some sense of it, and
* stores our page contents and config storage
* and anything else that might need to be passed around
* before we spit the page out.
*
*/
class App
{
const PLATFORM = 'Friendica';
const CODENAME = 'Giant Rhubarb';
const VERSION = '2022.12-dev';
// Allow themes to control internal parameters
// by changing App values in theme.php
private $theme_info = [
'videowidth' => 425,
'videoheight' => 350,
];
private $user_id = 0;
private $nickname = '';
private $timezone = '';
private $profile_owner = 0;
private $contact_id = 0;
private $queue = [];
/**
* @var App\Mode The Mode of the Application
*/
private $mode;
/**
* @var BaseURL
*/
private $baseURL;
/** @var string The name of the current theme */
private $currentTheme;
/** @var string The name of the current mobile theme */
private $currentMobileTheme;
/**
* @var IManageConfigValues The config
*/
private $config;
/**
* @var LoggerInterface The logger
*/
private $logger;
/**
* @var Profiler The profiler of this app
*/
private $profiler;
/**
* @var Database The Friendica database connection
*/
private $database;
/**
* @var L10n The translator
*/
private $l10n;
/**
* @var App\Arguments
*/
private $args;
/**
* @var IManagePersonalConfigValues
*/
private $pConfig;
/**
* @var IHandleUserSessions
*/
private $session;
/**
* Set the user ID
*
* @param int $user_id
* @return void
*/
public function setLoggedInUserId(int $user_id)
{
$this->user_id = $user_id;
}
/**
* Set the nickname
*
* @param int $user_id
* @return void
*/
public function setLoggedInUserNickname(string $nickname)
{
$this->nickname = $nickname;
}
public function isLoggedIn(): bool
{
return $this->session->getLocalUserId() && $this->user_id && ($this->user_id == $this->session->getLocalUserId());
}
/**
* Check if current user has admin role.
*
* @return bool true if user is an admin
* @throws Exception
*/
public function isSiteAdmin(): bool
{
return
$this->session->getLocalUserId()
&& $this->database->exists('user', [
'uid' => $this->getLoggedInUserId(),
'email' => User::getAdminEmailList()
]);
}
/**
* Fetch the user id
* @return int User id
*/
public function getLoggedInUserId(): int
{
return $this->user_id;
}
/**
* Fetch the user nick name
* @return string User's nickname
*/
public function getLoggedInUserNickname(): string
{
return $this->nickname;
}
/**
* Set the profile owner ID
*
* @param int $owner_id
* @return void
*/
public function setProfileOwner(int $owner_id)
{
$this->profile_owner = $owner_id;
}
/**
* Get the profile owner ID
*
* @return int
*/
public function getProfileOwner(): int
{
return $this->profile_owner;
}
/**
* Set the contact ID
*
* @param int $contact_id
* @return void
*/
public function setContactId(int $contact_id)
{
$this->contact_id = $contact_id;
}
/**
* Get the contact ID
*
* @return int
*/
public function getContactId(): int
{
return $this->contact_id;
}
/**
* Set the timezone
*
* @param string $timezone A valid time zone identifier, see https://www.php.net/manual/en/timezones.php
* @return void
*/
public function setTimeZone(string $timezone)
{
$this->timezone = (new \DateTimeZone($timezone))->getName();
DateTimeFormat::setLocalTimeZone($this->timezone);
}
/**
* Get the timezone
*
* @return int
*/
public function getTimeZone(): string
{
return $this->timezone;
}
/**
* Set workerqueue information
*
* @param array $queue
* @return void
*/
public function setQueue(array $queue)
{
$this->queue = $queue;
}
/**
* Fetch workerqueue information
*
* @return array Worker queue
*/
public function getQueue(): array
{
return $this->queue ?? [];
}
/**
* Fetch a specific workerqueue field
*
* @param string $index Work queue record to fetch
* @return mixed Work queue item or NULL if not found
*/
public function getQueueValue(string $index)
{
return $this->queue[$index] ?? null;
}
public function setThemeInfoValue(string $index, $value)
{
$this->theme_info[$index] = $value;
}
public function getThemeInfo()
{
return $this->theme_info;
}
public function getThemeInfoValue(string $index, $default = null)
{
return $this->theme_info[$index] ?? $default;
}
/**
* Returns the current config cache of this node
*
* @return Cache
*/
public function getConfigCache()
{
return $this->config->getCache();
}
/**
* The basepath of this app
*
* @return string Base path from configuration
*/
public function getBasePath(): string
{
// Don't use the basepath of the config table for basepath (it should always be the config-file one)
return $this->config->getCache()->get('system', 'basepath');
}
/**
* @param Database $database The Friendica Database
* @param IManageConfigValues $config The Configuration
* @param App\Mode $mode The mode of this Friendica app
* @param BaseURL $baseURL The full base URL of this Friendica app
* @param LoggerInterface $logger The current app logger
* @param Profiler $profiler The profiler of this application
* @param L10n $l10n The translator instance
* @param App\Arguments $args The Friendica Arguments of the call
* @param IManagePersonalConfigValues $pConfig Personal configuration
* @param IHandleUserSessions $session The (User)Session handler
*/
public function __construct(Database $database, IManageConfigValues $config, App\Mode $mode, BaseURL $baseURL, LoggerInterface $logger, Profiler $profiler, L10n $l10n, Arguments $args, IManagePersonalConfigValues $pConfig, IHandleUserSessions $session)
{
$this->database = $database;
$this->config = $config;
$this->mode = $mode;
$this->baseURL = $baseURL;
$this->profiler = $profiler;
$this->logger = $logger;
$this->l10n = $l10n;
$this->args = $args;
$this->pConfig = $pConfig;
$this->session = $session;
$this->load();
}
/**
* Load the whole app instance
*/
public function load()
{
set_time_limit(0);
// Normally this constant is defined - but not if "pcntl" isn't installed
if (!defined('SIGTERM')) {
define('SIGTERM', 15);
}
// Ensure that all "strtotime" operations do run timezone independent
date_default_timezone_set('UTC');
// This has to be quite large to deal with embedded private photos
ini_set('pcre.backtrack_limit', 500000);
set_include_path(
get_include_path() . PATH_SEPARATOR
. $this->getBasePath() . DIRECTORY_SEPARATOR . 'include' . PATH_SEPARATOR
. $this->getBasePath() . DIRECTORY_SEPARATOR . 'library' . PATH_SEPARATOR
. $this->getBasePath());
$this->profiler->reset();
if ($this->mode->has(App\Mode::DBAVAILABLE)) {
$this->profiler->update($this->config);
Core\Hook::loadHooks();
$loader = (new Config())->createConfigFileLoader($this->getBasePath(), $_SERVER);
Core\Hook::callAll('load_config', $loader);
}
$this->loadDefaultTimezone();
// Register template engines
Core\Renderer::registerTemplateEngine('Friendica\Render\FriendicaSmartyEngine');
}
/**
* Loads the default timezone
*
* Include support for legacy $default_timezone
*
* @global string $default_timezone
*/
private function loadDefaultTimezone()
{
if ($this->config->get('system', 'default_timezone')) {
$timezone = $this->config->get('system', 'default_timezone', 'UTC');
} else {
global $default_timezone;
$timezone = $default_timezone ?? '' ?: 'UTC';
}
$this->setTimeZone($timezone);
}
/**
* Returns the current theme name. May be overriden by the mobile theme name.
*
* @return string Current theme name or empty string in installation phase
* @throws Exception
*/
public function getCurrentTheme(): string
{
if ($this->mode->isInstall()) {
return '';
}
// Specific mobile theme override
if (($this->mode->isMobile() || $this->mode->isTablet()) && $this->session->get('show-mobile', true)) {
$user_mobile_theme = $this->getCurrentMobileTheme();
// --- means same mobile theme as desktop
if (!empty($user_mobile_theme) && $user_mobile_theme !== '---') {
return $user_mobile_theme;
}
}
if (!$this->currentTheme) {
$this->computeCurrentTheme();
}
return $this->currentTheme;
}
/**
* Returns the current mobile theme name.
*
* @return string Mobile theme name or empty string if installer
* @throws Exception
*/
public function getCurrentMobileTheme(): string
{
if ($this->mode->isInstall()) {
return '';
}
if (is_null($this->currentMobileTheme)) {
$this->computeCurrentMobileTheme();
}
return $this->currentMobileTheme;
}
/**
* Setter for current theme name
*
* @param string $theme Name of current theme
*/
public function setCurrentTheme(string $theme)
{
$this->currentTheme = $theme;
}
/**
* Setter for current mobile theme name
*
* @param string $theme Name of current mobile theme
*/
public function setCurrentMobileTheme(string $theme)
{
$this->currentMobileTheme = $theme;
}
/**
* Computes the current theme name based on the node settings, the page owner settings and the user settings
*
* @throws Exception
*/
private function computeCurrentTheme()
{
$system_theme = $this->config->get('system', 'theme');
if (!$system_theme) {
throw new Exception($this->l10n->t('No system theme config value set.'));
}
// Sane default
$this->setCurrentTheme($system_theme);
$page_theme = null;
// Find the theme that belongs to the user whose stuff we are looking at
if (!empty($this->profile_owner) && ($this->profile_owner != $this->session->getLocalUserId())) {
// Allow folks to override user themes and always use their own on their own site.
// This works only if the user is on the same server
$user = $this->database->selectFirst('user', ['theme'], ['uid' => $this->profile_owner]);
if ($this->database->isResult($user) && !$this->session->getLocalUserId()) {
$page_theme = $user['theme'];
}
}
$theme_name = $page_theme ?: $this->session->get('theme', $system_theme);
$theme_name = Strings::sanitizeFilePathItem($theme_name);
if ($theme_name
&& in_array($theme_name, Theme::getAllowedList())
&& (file_exists('view/theme/' . $theme_name . '/style.css')
|| file_exists('view/theme/' . $theme_name . '/style.php'))
) {
$this->setCurrentTheme($theme_name);
}
}
/**
* Computes the current mobile theme name based on the node settings, the page owner settings and the user settings
*/
private function computeCurrentMobileTheme()
{
$system_mobile_theme = $this->config->get('system', 'mobile-theme', '');
// Sane default
$this->setCurrentMobileTheme($system_mobile_theme);
$page_mobile_theme = null;
// Find the theme that belongs to the user whose stuff we are looking at
if (!empty($this->profile_owner) && ($this->profile_owner != $this->session->getLocalUserId())) {
// Allow folks to override user themes and always use their own on their own site.
// This works only if the user is on the same server
if (!$this->session->getLocalUserId()) {
$page_mobile_theme = $this->pConfig->get($this->profile_owner, 'system', 'mobile-theme');
}
}
$mobile_theme_name = $page_mobile_theme ?: $this->session->get('mobile-theme', $system_mobile_theme);
$mobile_theme_name = Strings::sanitizeFilePathItem($mobile_theme_name);
if ($mobile_theme_name == '---'
||
in_array($mobile_theme_name, Theme::getAllowedList())
&& (file_exists('view/theme/' . $mobile_theme_name . '/style.css')
|| file_exists('view/theme/' . $mobile_theme_name . '/style.php'))
) {
$this->setCurrentMobileTheme($mobile_theme_name);
}
}
/**
* Provide a sane default if nothing is chosen or the specified theme does not exist.
*
* @return string Current theme's stylsheet path
* @throws Exception
*/
public function getCurrentThemeStylesheetPath(): string
{
return Core\Theme::getStylesheetPath($this->getCurrentTheme());
}
/**
* Sets the base url for use in cmdline programs which don't have
* $_SERVER variables
*/
public function checkURL()
{
$url = $this->config->get('system', 'url');
// if the url isn't set or the stored url is radically different
// than the currently visited url, store the current value accordingly.
// "Radically different" ignores common variations such as http vs https
// and www.example.com vs example.com.
// We will only change the url to an ip address if there is no existing setting
if (empty($url) || (!Util\Strings::compareLink($url, $this->baseURL->get())) && (!preg_match("/^(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})$/", $this->baseURL->getHostname()))) {
$this->config->set('system', 'url', $this->baseURL->get());
}
}
/**
* Frontend App script
*
* The App object behaves like a container and a dispatcher at the same time, including a representation of the
* request and a representation of the response.
*
* This probably should change to limit the size of this monster method.
*
* @param App\Router $router
* @param IManagePersonalConfigValues $pconfig
* @param Authentication $auth The Authentication backend of the node
* @param App\Page $page The Friendica page printing container
* @param HTTPInputData $httpInput A library for processing PHP input streams
* @param float $start_time The start time of the overall script execution
*
* @throws HTTPException\InternalServerErrorException
* @throws \ImagickException
*/
public function runFrontend(App\Router $router, IManagePersonalConfigValues $pconfig, Authentication $auth, App\Page $page, HTTPInputData $httpInput, float $start_time)
{
$this->profiler->set($start_time, 'start');
$this->profiler->set(microtime(true), 'classinit');
$moduleName = $this->args->getModuleName();
$page->setLogging($this->args->getMethod(), $this->args->getModuleName(), $this->args->getCommand());
try {
// Missing DB connection: ERROR
if ($this->mode->has(App\Mode::LOCALCONFIGPRESENT) && !$this->mode->has(App\Mode::DBAVAILABLE)) {
throw new HTTPException\InternalServerErrorException($this->l10n->t('Apologies but the website is unavailable at the moment.'));
}
if (!$this->mode->isInstall()) {
// Force SSL redirection
if ($this->baseURL->checkRedirectHttps()) {
System::externalRedirect($this->baseURL->get() . '/' . $this->args->getQueryString());
}
Core\Hook::callAll('init_1');
}
if ($this->mode->isNormal() && !$this->mode->isBackend()) {
$requester = HTTPSignature::getSigner('', $_SERVER);
if (!empty($requester)) {
Profile::addVisitorCookieForHandle($requester);
}
}
// ZRL
if (!empty($_GET['zrl']) && $this->mode->isNormal() && !$this->mode->isBackend() && !$this->session->getLocalUserId()) {
// Only continue when the given profile link seems valid
// Valid profile links contain a path with "/profile/" and no query parameters
if ((parse_url($_GET['zrl'], PHP_URL_QUERY) == '') &&
strstr(parse_url($_GET['zrl'], PHP_URL_PATH), '/profile/')) {
if ($this->session->get('visitor_home') != $_GET['zrl']) {
$this->session->set('my_url', $_GET['zrl']);
$this->session->set('authenticated', 0);
$remote_contact = Contact::getByURL($_GET['zrl'], false, ['subscribe']);
if (!empty($remote_contact['subscribe'])) {
$_SESSION['remote_comment'] = $remote_contact['subscribe'];
}
}
Model\Profile::zrlInit($this);
} else {
// Someone came with an invalid parameter, maybe as a DDoS attempt
// We simply stop processing here
$this->logger->debug('Invalid ZRL parameter.', ['zrl' => $_GET['zrl']]);
throw new HTTPException\ForbiddenException();
}
}
if (!empty($_GET['owt']) && $this->mode->isNormal()) {
$token = $_GET['owt'];
Model\Profile::openWebAuthInit($token);
}
if (!$this->mode->isBackend()) {
$auth->withSession($this);
}
if (empty($_SESSION['authenticated'])) {
header('X-Account-Management-Status: none');
}
/*
* check_config() is responsible for running update scripts. These automatically
* update the DB schema whenever we push a new one out. It also checks to see if
* any addons have been added or removed and reacts accordingly.
*/
// in install mode, any url loads install module
// but we need "view" module for stylesheet
if ($this->mode->isInstall() && $moduleName !== 'install') {
$this->baseURL->redirect('install');
} else {
$this->checkURL();
Core\Update::check($this->getBasePath(), false, $this->mode);
Core\Addon::loadAddons();
Core\Hook::loadHooks();
}
// Compatibility with the Android Diaspora client
if ($moduleName == 'stream') {
$this->baseURL->redirect('network?order=post');
}
if ($moduleName == 'conversations') {
$this->baseURL->redirect('message');
}
if ($moduleName == 'commented') {
$this->baseURL->redirect('network?order=comment');
}
if ($moduleName == 'liked') {
$this->baseURL->redirect('network?order=comment');
}
if ($moduleName == 'activity') {
$this->baseURL->redirect('network?conv=1');
}
if (($moduleName == 'status_messages') && ($this->args->getCommand() == 'status_messages/new')) {
$this->baseURL->redirect('bookmarklet');
}
if (($moduleName == 'user') && ($this->args->getCommand() == 'user/edit')) {
$this->baseURL->redirect('settings');
}
if (($moduleName == 'tag_followings') && ($this->args->getCommand() == 'tag_followings/manage')) {
$this->baseURL->redirect('search');
}
// Initialize module that can set the current theme in the init() method, either directly or via App->setProfileOwner
$page['page_title'] = $moduleName;
// The "view" module is required to show the theme CSS
if (!$this->mode->isInstall() && !$this->mode->has(App\Mode::MAINTENANCEDISABLED) && $moduleName !== 'view') {
$module = $router->getModule(Maintenance::class);
} else {
// determine the module class and save it to the module instance
// @todo there's an implicit dependency due SESSION::start(), so it has to be called here (yet)
$module = $router->getModule();
}
// Processes data from GET requests
$httpinput = $httpInput->process();
$input = array_merge($httpinput['variables'], $httpinput['files'], $request ?? $_REQUEST);
// Let the module run it's internal process (init, get, post, ...)
$timestamp = microtime(true);
$response = $module->run($input);
$this->profiler->set(microtime(true) - $timestamp, 'content');
if ($response->getHeaderLine(ICanCreateResponses::X_HEADER) === ICanCreateResponses::TYPE_HTML) {
$page->run($this, $this->baseURL, $this->args, $this->mode, $response, $this->l10n, $this->profiler, $this->config, $pconfig, $this->session->getLocalUserId());
} else {
$page->exit($response);
}
} catch (HTTPException $e) {
(new ModuleHTTPException())->rawContent($e);
}
$page->logRuntime($this->config, 'runFrontend');
}
/**
* Automatically redirects to relative or absolute URL
* Should only be used if it isn't clear if the URL is either internal or external
*
* @param string $toUrl The target URL
*
* @throws HTTPException\InternalServerErrorException
*/
public function redirect(string $toUrl)
{
if (!empty(parse_url($toUrl, PHP_URL_SCHEME))) {
Core\System::externalRedirect($toUrl);
} else {
$this->baseURL->redirect($toUrl);
}
}
}