649 lines
19 KiB
PHP
649 lines
19 KiB
PHP
<?php
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/**
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* @copyright Copyright (C) 2020, Friendica
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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\Core;
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use DOMDocument;
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use Exception;
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use Friendica\Core\Config\Cache;
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use Friendica\Database\Database;
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use Friendica\Database\DBStructure;
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use Friendica\DI;
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use Friendica\Util\Images;
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use Friendica\Util\Network;
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use Friendica\Util\Strings;
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/**
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* Contains methods for installation purpose of Friendica
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*/
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class Installer
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{
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// Default values for the install page
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const DEFAULT_LANG = 'en';
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const DEFAULT_TZ = 'America/Los_Angeles';
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const DEFAULT_HOST = 'localhost';
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/**
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* @var array the check outcomes
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*/
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private $checks;
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/**
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* @var string The path to the PHP binary
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*/
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private $phppath = null;
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/**
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* Returns all checks made
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*
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* @return array the checks
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*/
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public function getChecks()
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{
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return $this->checks;
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}
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/**
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* Returns the PHP path
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*
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* @return string the PHP Path
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* @throws \Friendica\Network\HTTPException\InternalServerErrorException
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*/
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public function getPHPPath()
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{
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// if not set, determine the PHP path
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if (!isset($this->phppath)) {
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$this->checkPHP();
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$this->resetChecks();
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}
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return $this->phppath;
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}
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/**
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* Resets all checks
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*/
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public function resetChecks()
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{
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$this->checks = [];
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}
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/**
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* Install constructor.
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*
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*/
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public function __construct()
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{
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$this->checks = [];
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}
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/**
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* Checks the current installation environment. There are optional and mandatory checks.
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*
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* @param string $baseurl The baseurl of Friendica
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* @param string $phpath Optional path to the PHP binary
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*
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* @return bool if the check succeed
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* @throws \Friendica\Network\HTTPException\InternalServerErrorException
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*/
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public function checkEnvironment($baseurl, $phpath = null)
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{
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$returnVal = true;
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if (isset($phpath)) {
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if (!$this->checkPHP($phpath)) {
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$returnVal = false;
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}
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}
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if (!$this->checkFunctions()) {
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$returnVal = false;
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}
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if (!$this->checkImagick()) {
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$returnVal = false;
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}
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if (!$this->checkLocalIni()) {
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$returnVal = false;
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}
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if (!$this->checkSmarty3()) {
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$returnVal = false;
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}
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if (!$this->checkKeys()) {
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$returnVal = false;
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}
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if (!$this->checkHtAccess($baseurl)) {
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$returnVal = false;
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}
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return $returnVal;
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}
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/**
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* Executes the installation of Friendica in the given environment.
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* - Creates `config/local.config.php`
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* - Installs Database Structure
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*
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* @param Cache $configCache The config cache with all config relevant information
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*
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* @return bool true if the config was created, otherwise false
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* @throws \Friendica\Network\HTTPException\InternalServerErrorException
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*/
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public function createConfig(Cache $configCache)
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{
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$basepath = $configCache->get('system', 'basepath');
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$tpl = Renderer::getMarkupTemplate('local.config.tpl');
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$txt = Renderer::replaceMacros($tpl, [
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'$dbhost' => $configCache->get('database', 'hostname'),
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'$dbuser' => $configCache->get('database', 'username'),
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'$dbpass' => $configCache->get('database', 'password'),
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'$dbdata' => $configCache->get('database', 'database'),
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'$phpath' => $configCache->get('config', 'php_path'),
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'$adminmail' => $configCache->get('config', 'admin_email'),
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'$hostname' => $configCache->get('config', 'hostname'),
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'$urlpath' => $configCache->get('system', 'urlpath'),
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'$baseurl' => $configCache->get('system', 'url'),
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'$sslpolicy' => $configCache->get('system', 'ssl_policy'),
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'$basepath' => $basepath,
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'$timezone' => $configCache->get('system', 'default_timezone'),
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'$language' => $configCache->get('system', 'language'),
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]);
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$result = file_put_contents($basepath . DIRECTORY_SEPARATOR . 'config' . DIRECTORY_SEPARATOR . 'local.config.php', $txt);
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if (!$result) {
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$this->addCheck(DI::l10n()->t('The database configuration file "config/local.config.php" could not be written. Please use the enclosed text to create a configuration file in your web server root.'), false, false, htmlentities($txt, ENT_COMPAT, 'UTF-8'));
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}
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return $result;
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}
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/***
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* Installs the DB-Scheme for Friendica
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*
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* @param string $basePath The base path of this application
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*
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* @return bool true if the installation was successful, otherwise false
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* @throws Exception
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*/
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public function installDatabase($basePath)
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{
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$result = DBStructure::update($basePath, false, true, true);
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if ($result) {
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$txt = DI::l10n()->t('You may need to import the file "database.sql" manually using phpmyadmin or mysql.') . EOL;
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$txt .= DI::l10n()->t('Please see the file "INSTALL.txt".');
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$this->addCheck($txt, false, true, htmlentities($result, ENT_COMPAT, 'UTF-8'));
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return false;
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}
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return true;
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}
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/**
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* Adds new checks to the array $checks
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*
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* @param string $title The title of the current check
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* @param bool $status 1 = check passed, 0 = check not passed
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* @param bool $required 1 = check is mandatory, 0 = check is optional
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* @param string $help A help-string for the current check
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* @param string $error_msg Optional. A error message, if the current check failed
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*/
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private function addCheck($title, $status, $required, $help, $error_msg = "")
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{
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array_push($this->checks, [
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'title' => $title,
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'status' => $status,
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'required' => $required,
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'help' => $help,
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'error_msg' => $error_msg,
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]);
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}
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/**
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* PHP Check
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*
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* Checks the PHP environment.
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*
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* - Checks if a PHP binary is available
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* - Checks if it is the CLI version
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* - Checks if "register_argc_argv" is enabled
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*
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* @param string $phppath Optional. The Path to the PHP-Binary
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* @param bool $required Optional. If set to true, the PHP-Binary has to exist (Default false)
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*
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* @return bool false if something required failed
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* @throws \Friendica\Network\HTTPException\InternalServerErrorException
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*/
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public function checkPHP($phppath = null, $required = false)
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{
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$passed3 = false;
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if (!isset($phppath)) {
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$phppath = 'php';
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}
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$passed = file_exists($phppath);
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if (!$passed) {
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$phppath = trim(shell_exec('which ' . $phppath));
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$passed = strlen($phppath);
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}
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$help = "";
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if (!$passed) {
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$help .= DI::l10n()->t('Could not find a command line version of PHP in the web server PATH.') . EOL;
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$help .= DI::l10n()->t("If you don't have a command line version of PHP installed on your server, you will not be able to run the background processing. See <a href='https://github.com/friendica/friendica/blob/master/doc/Install.md#set-up-the-worker'>'Setup the worker'</a>") . EOL;
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$help .= EOL . EOL;
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$tpl = Renderer::getMarkupTemplate('field_input.tpl');
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/// @todo Separate backend Installer class and presentation layer/view
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$help .= Renderer::replaceMacros($tpl, [
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'$field' => ['config-php_path', DI::l10n()->t('PHP executable path'), $phppath, DI::l10n()->t('Enter full path to php executable. You can leave this blank to continue the installation.')],
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]);
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$phppath = "";
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}
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$this->addCheck(DI::l10n()->t('Command line PHP') . ($passed ? " (<tt>$phppath</tt>)" : ""), $passed, false, $help);
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if ($passed) {
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$cmd = "$phppath -v";
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$result = trim(shell_exec($cmd));
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$passed2 = (strpos($result, "(cli)") !== false);
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list($result) = explode("\n", $result);
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$help = "";
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if (!$passed2) {
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$help .= DI::l10n()->t("PHP executable is not the php cli binary \x28could be cgi-fgci version\x29") . EOL;
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$help .= DI::l10n()->t('Found PHP version: ') . "<tt>$result</tt>";
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}
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$this->addCheck(DI::l10n()->t('PHP cli binary'), $passed2, true, $help);
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} else {
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// return if it was required
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return !$required;
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}
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if ($passed2) {
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$str = Strings::getRandomName(8);
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$cmd = "$phppath bin/testargs.php $str";
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$result = trim(shell_exec($cmd));
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$passed3 = $result == $str;
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$help = "";
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if (!$passed3) {
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$help .= DI::l10n()->t('The command line version of PHP on your system does not have "register_argc_argv" enabled.') . EOL;
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$help .= DI::l10n()->t('This is required for message delivery to work.');
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} else {
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$this->phppath = $phppath;
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}
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$this->addCheck(DI::l10n()->t('PHP register_argc_argv'), $passed3, true, $help);
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}
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// passed2 & passed3 are required if first check passed
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return $passed2 && $passed3;
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}
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/**
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* OpenSSL Check
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*
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* Checks the OpenSSL Environment
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*
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* - Checks, if the command "openssl_pkey_new" is available
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*
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* @return bool false if something required failed
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*/
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public function checkKeys()
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{
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$help = '';
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$res = false;
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$status = true;
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if (function_exists('openssl_pkey_new')) {
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$res = openssl_pkey_new([
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'digest_alg' => 'sha1',
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'private_key_bits' => 4096,
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'encrypt_key' => false
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]);
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}
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// Get private key
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if (!$res) {
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$help .= DI::l10n()->t('Error: the "openssl_pkey_new" function on this system is not able to generate encryption keys') . EOL;
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$help .= DI::l10n()->t('If running under Windows, please see "http://www.php.net/manual/en/openssl.installation.php".');
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$status = false;
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}
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$this->addCheck(DI::l10n()->t('Generate encryption keys'), $res, true, $help);
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return $status;
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}
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/**
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* PHP basic function check
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*
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* @param string $name The name of the function
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* @param string $title The (localized) title of the function
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* @param string $help The (localized) help of the function
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* @param boolean $required If true, this check is required
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*
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* @return bool false, if the check failed
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*/
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private function checkFunction($name, $title, $help, $required)
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{
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$currHelp = '';
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$status = true;
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if (!function_exists($name)) {
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$currHelp = $help;
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$status = false;
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}
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$this->addCheck($title, $status, $required, $currHelp);
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return $status || (!$status && !$required);
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}
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/**
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* PHP functions Check
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*
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* Checks the following PHP functions
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* - libCurl
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* - GD Graphics
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* - OpenSSL
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* - PDO or MySQLi
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* - mb_string
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* - XML
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* - iconv
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* - fileinfo
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* - POSIX
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*
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* @return bool false if something required failed
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*/
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public function checkFunctions()
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{
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$returnVal = true;
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$help = '';
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$status = true;
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if (function_exists('apache_get_modules')) {
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if (!in_array('mod_rewrite', apache_get_modules())) {
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$help = DI::l10n()->t('Error: Apache webserver mod-rewrite module is required but not installed.');
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$status = false;
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$returnVal = false;
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}
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}
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$this->addCheck(DI::l10n()->t('Apache mod_rewrite module'), $status, true, $help);
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$help = '';
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$status = true;
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if (!function_exists('mysqli_connect') && !class_exists('pdo')) {
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$status = false;
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$help = DI::l10n()->t('Error: PDO or MySQLi PHP module required but not installed.');
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$returnVal = false;
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} else {
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if (!function_exists('mysqli_connect') && class_exists('pdo') && !in_array('mysql', \PDO::getAvailableDrivers())) {
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$status = false;
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$help = DI::l10n()->t('Error: The MySQL driver for PDO is not installed.');
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$returnVal = false;
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}
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}
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$this->addCheck(DI::l10n()->t('PDO or MySQLi PHP module'), $status, true, $help);
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// check for XML DOM Documents being able to be generated
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$help = '';
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$status = true;
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try {
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new DOMDocument();
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} catch (Exception $e) {
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$help = DI::l10n()->t('Error, XML PHP module required but not installed.');
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$status = false;
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$returnVal = false;
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}
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$this->addCheck(DI::l10n()->t('XML PHP module'), $status, true, $help);
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$status = $this->checkFunction('curl_init',
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DI::l10n()->t('libCurl PHP module'),
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DI::l10n()->t('Error: libCURL PHP module required but not installed.'),
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true
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);
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$returnVal = $returnVal ? $status : false;
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$status = $this->checkFunction('imagecreatefromjpeg',
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DI::l10n()->t('GD graphics PHP module'),
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DI::l10n()->t('Error: GD graphics PHP module with JPEG support required but not installed.'),
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true
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);
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$returnVal = $returnVal ? $status : false;
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$status = $this->checkFunction('openssl_public_encrypt',
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DI::l10n()->t('OpenSSL PHP module'),
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DI::l10n()->t('Error: openssl PHP module required but not installed.'),
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true
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);
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$returnVal = $returnVal ? $status : false;
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$status = $this->checkFunction('mb_strlen',
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DI::l10n()->t('mb_string PHP module'),
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DI::l10n()->t('Error: mb_string PHP module required but not installed.'),
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true
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);
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$returnVal = $returnVal ? $status : false;
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$status = $this->checkFunction('iconv_strlen',
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DI::l10n()->t('iconv PHP module'),
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DI::l10n()->t('Error: iconv PHP module required but not installed.'),
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true
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);
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$returnVal = $returnVal ? $status : false;
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$status = $this->checkFunction('posix_kill',
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DI::l10n()->t('POSIX PHP module'),
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DI::l10n()->t('Error: POSIX PHP module required but not installed.'),
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true
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);
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$returnVal = $returnVal ? $status : false;
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$status = $this->checkFunction('json_encode',
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DI::l10n()->t('JSON PHP module'),
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DI::l10n()->t('Error: JSON PHP module required but not installed.'),
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true
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);
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$returnVal = $returnVal ? $status : false;
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$status = $this->checkFunction('finfo_open',
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DI::l10n()->t('File Information PHP module'),
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DI::l10n()->t('Error: File Information PHP module required but not installed.'),
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true
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);
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$returnVal = $returnVal ? $status : false;
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return $returnVal;
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}
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/**
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* "config/local.config.php" - Check
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*
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* Checks if it's possible to create the "config/local.config.php"
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*
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* @return bool false if something required failed
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*/
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public function checkLocalIni()
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{
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$status = true;
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$help = "";
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if ((file_exists('config/local.config.php') && !is_writable('config/local.config.php')) ||
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(!file_exists('config/local.config.php') && !is_writable('.'))) {
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$status = false;
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$help = DI::l10n()->t('The web installer needs to be able to create a file called "local.config.php" in the "config" folder of your web server and it is unable to do so.') . EOL;
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$help .= DI::l10n()->t('This is most often a permission setting, as the web server may not be able to write files in your folder - even if you can.') . EOL;
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$help .= DI::l10n()->t('At the end of this procedure, we will give you a text to save in a file named local.config.php in your Friendica "config" folder.') . EOL;
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$help .= DI::l10n()->t('You can alternatively skip this procedure and perform a manual installation. Please see the file "INSTALL.txt" for instructions.') . EOL;
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}
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$this->addCheck(DI::l10n()->t('config/local.config.php is writable'), $status, false, $help);
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// Local INI File is not required
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return true;
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}
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/**
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* Smarty3 Template Check
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*
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* Checks, if the directory of Smarty3 is writable
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*
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* @return bool false if something required failed
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*/
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public function checkSmarty3()
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{
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$status = true;
|
|
$help = "";
|
|
if (!is_writable('view/smarty3')) {
|
|
|
|
$status = false;
|
|
$help = DI::l10n()->t('Friendica uses the Smarty3 template engine to render its web views. Smarty3 compiles templates to PHP to speed up rendering.') . EOL;
|
|
$help .= DI::l10n()->t('In order to store these compiled templates, the web server needs to have write access to the directory view/smarty3/ under the Friendica top level folder.') . EOL;
|
|
$help .= DI::l10n()->t("Please ensure that the user that your web server runs as \x28e.g. www-data\x29 has write access to this folder.") . EOL;
|
|
$help .= DI::l10n()->t("Note: as a security measure, you should give the web server write access to view/smarty3/ only--not the template files \x28.tpl\x29 that it contains.") . EOL;
|
|
}
|
|
|
|
$this->addCheck(DI::l10n()->t('view/smarty3 is writable'), $status, true, $help);
|
|
|
|
return $status;
|
|
}
|
|
|
|
/**
|
|
* ".htaccess" - Check
|
|
*
|
|
* Checks, if "url_rewrite" is enabled in the ".htaccess" file
|
|
*
|
|
* @param string $baseurl The baseurl of the app
|
|
* @return bool false if something required failed
|
|
* @throws \Friendica\Network\HTTPException\InternalServerErrorException
|
|
*/
|
|
public function checkHtAccess($baseurl)
|
|
{
|
|
$status = true;
|
|
$help = "";
|
|
$error_msg = "";
|
|
if (function_exists('curl_init')) {
|
|
$fetchResult = Network::fetchUrlFull($baseurl . "/install/testrewrite");
|
|
|
|
$url = Strings::normaliseLink($baseurl . "/install/testrewrite");
|
|
if ($fetchResult->getReturnCode() != 204) {
|
|
$fetchResult = Network::fetchUrlFull($url);
|
|
}
|
|
|
|
if ($fetchResult->getReturnCode() != 204) {
|
|
$status = false;
|
|
$help = DI::l10n()->t('Url rewrite in .htaccess is not working. Make sure you copied .htaccess-dist to .htaccess.');
|
|
$error_msg = [];
|
|
$error_msg['head'] = DI::l10n()->t('Error message from Curl when fetching');
|
|
$error_msg['url'] = $fetchResult->getRedirectUrl();
|
|
$error_msg['msg'] = $fetchResult->getError();
|
|
}
|
|
|
|
$this->addCheck(DI::l10n()->t('Url rewrite is working'), $status, true, $help, $error_msg);
|
|
} else {
|
|
// cannot check modrewrite if libcurl is not installed
|
|
/// @TODO Maybe issue warning here?
|
|
}
|
|
|
|
return $status;
|
|
}
|
|
|
|
/**
|
|
* Imagick Check
|
|
*
|
|
* Checks, if the imagick module is available
|
|
*
|
|
* @return bool false if something required failed
|
|
*/
|
|
public function checkImagick()
|
|
{
|
|
$imagick = false;
|
|
$gif = false;
|
|
|
|
if (class_exists('Imagick')) {
|
|
$imagick = true;
|
|
$supported = Images::supportedTypes();
|
|
if (array_key_exists('image/gif', $supported)) {
|
|
$gif = true;
|
|
}
|
|
}
|
|
if (!$imagick) {
|
|
$this->addCheck(DI::l10n()->t('ImageMagick PHP extension is not installed'), $imagick, false, "");
|
|
} else {
|
|
$this->addCheck(DI::l10n()->t('ImageMagick PHP extension is installed'), $imagick, false, "");
|
|
if ($imagick) {
|
|
$this->addCheck(DI::l10n()->t('ImageMagick supports GIF'), $gif, false, "");
|
|
}
|
|
}
|
|
|
|
// Imagick is not required
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Checking the Database connection and if it is available for the current installation
|
|
*
|
|
* @param Database $dba
|
|
*
|
|
* @return bool true if the check was successful, otherwise false
|
|
* @throws Exception
|
|
*/
|
|
public function checkDB(Database $dba)
|
|
{
|
|
$dba->reconnect();
|
|
|
|
if ($dba->isConnected()) {
|
|
if (DBStructure::existsTable('user')) {
|
|
$this->addCheck(DI::l10n()->t('Database already in use.'), false, true, '');
|
|
|
|
return false;
|
|
}
|
|
} else {
|
|
$this->addCheck(DI::l10n()->t('Could not connect to database.'), false, true, '');
|
|
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Setup the default cache for a new installation
|
|
*
|
|
* @param Cache $configCache The configuration cache
|
|
* @param string $basePath The determined basepath
|
|
*
|
|
* @throws \Friendica\Network\HTTPException\InternalServerErrorException
|
|
*/
|
|
public function setUpCache(Cache $configCache, $basePath)
|
|
{
|
|
$configCache->set('config', 'php_path' , $this->getPHPPath());
|
|
$configCache->set('system', 'basepath' , $basePath);
|
|
}
|
|
}
|