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https://github.com/friendica/friendica
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Restructure (P)Config to follow new paradigm
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Philipp
parent
68046573a4
commit
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49 changed files with 368 additions and 331 deletions
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<?php
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/**
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* @copyright Copyright (C) 2010-2021, 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\Util;
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use Exception;
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use Friendica\Core\Addon;
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use Friendica\Core\Config\Cache;
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/**
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* The ConfigFileLoader loads config-files and stores them in a ConfigCache ( @see Cache )
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*
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* It is capable of loading the following config files:
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* - *.config.php (current)
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* - *.ini.php (deprecated)
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* - *.htconfig.php (deprecated)
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*/
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class ConfigFileLoader
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{
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/**
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* The default name of the user defined ini file
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*
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* @var string
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*/
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const CONFIG_INI = 'local';
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/**
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* The default name of the user defined legacy config file
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*
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* @var string
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*/
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const CONFIG_HTCONFIG = 'htconfig';
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/**
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* The sample string inside the configs, which shouldn't get loaded
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*
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* @var string
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*/
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const SAMPLE_END = '-sample';
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/**
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* @var string
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*/
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private $baseDir;
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/**
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* @var string
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*/
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private $configDir;
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/**
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* @var string
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*/
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private $staticDir;
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/**
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* @param string $baseDir The base
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* @param string $configDir
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* @param string $staticDir
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*/
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public function __construct(string $baseDir, string $configDir, string $staticDir)
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{
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$this->baseDir = $baseDir;
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$this->configDir = $configDir;
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$this->staticDir = $staticDir;
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}
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/**
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* Load the configuration files into an configuration cache
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*
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* First loads the default value for all the configuration keys, then the legacy configuration files, then the
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* expected local.config.php
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*
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* @param Cache $config The config cache to load to
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* @param array $server The $_SERVER array
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* @param bool $raw Setup the raw config format
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*
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* @throws Exception
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*/
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public function setupCache(Cache $config, array $server = [], bool $raw = false)
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{
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// Load static config files first, the order is important
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$config->load($this->loadStaticConfig('defaults'), Cache::SOURCE_FILE);
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$config->load($this->loadStaticConfig('settings'), Cache::SOURCE_FILE);
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// try to load the legacy config first
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$config->load($this->loadLegacyConfig('htpreconfig'), Cache::SOURCE_FILE);
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$config->load($this->loadLegacyConfig('htconfig'), Cache::SOURCE_FILE);
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// Now load every other config you find inside the 'config/' directory
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$this->loadCoreConfig($config);
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$config->load($this->loadEnvConfig($server), Cache::SOURCE_ENV);
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// In case of install mode, add the found basepath (because there isn't a basepath set yet
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if (!$raw && empty($config->get('system', 'basepath'))) {
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// Setting at least the basepath we know
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$config->set('system', 'basepath', $this->baseDir, Cache::SOURCE_FILE);
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}
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}
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/**
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* Tries to load the static core-configuration and returns the config array.
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*
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* @param string $name The name of the configuration
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*
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* @return array The config array (empty if no config found)
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*
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* @throws Exception if the configuration file isn't readable
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*/
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private function loadStaticConfig($name)
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{
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$configName = $this->staticDir . DIRECTORY_SEPARATOR . $name . '.config.php';
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$iniName = $this->staticDir . DIRECTORY_SEPARATOR . $name . '.ini.php';
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if (file_exists($configName)) {
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return $this->loadConfigFile($configName);
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} elseif (file_exists($iniName)) {
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return $this->loadINIConfigFile($iniName);
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} else {
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return [];
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}
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}
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/**
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* Tries to load the specified core-configuration into the config cache.
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*
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* @param Cache $config The Config cache
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*
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* @return array The config array (empty if no config found)
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*
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* @throws Exception if the configuration file isn't readable
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*/
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private function loadCoreConfig(Cache $config)
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{
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// try to load legacy ini-files first
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foreach ($this->getConfigFiles(true) as $configFile) {
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$config->load($this->loadINIConfigFile($configFile), Cache::SOURCE_FILE);
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}
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// try to load supported config at last to overwrite it
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foreach ($this->getConfigFiles() as $configFile) {
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$config->load($this->loadConfigFile($configFile), Cache::SOURCE_FILE);
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}
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return [];
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}
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/**
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* Tries to load the specified addon-configuration and returns the config array.
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*
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* @param string $name The name of the configuration
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*
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* @return array The config array (empty if no config found)
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*
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* @throws Exception if the configuration file isn't readable
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*/
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public function loadAddonConfig($name)
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{
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$filepath = $this->baseDir . DIRECTORY_SEPARATOR . // /var/www/html/
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Addon::DIRECTORY . DIRECTORY_SEPARATOR . // addon/
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$name . DIRECTORY_SEPARATOR . // openstreetmap/
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'config'. DIRECTORY_SEPARATOR . // config/
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$name . ".config.php"; // openstreetmap.config.php
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if (file_exists($filepath)) {
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return $this->loadConfigFile($filepath);
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} else {
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return [];
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}
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}
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/**
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* Tries to load environment specific variables, based on the `env.config.php` mapping table
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*
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* @param array $server The $_SERVER variable
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*
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* @return array The config array (empty if no config was found)
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*
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* @throws Exception if the configuration file isn't readable
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*/
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public function loadEnvConfig(array $server)
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{
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$filepath = $this->staticDir . DIRECTORY_SEPARATOR . // /var/www/html/static/
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"env.config.php"; // env.config.php
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if (!file_exists($filepath)) {
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return [];
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}
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$envConfig = $this->loadConfigFile($filepath);
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$return = [];
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foreach ($envConfig as $envKey => $configStructure) {
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if (isset($server[$envKey])) {
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$return[$configStructure[0]][$configStructure[1]] = $server[$envKey];
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}
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}
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return $return;
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}
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/**
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* Get the config files of the config-directory
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*
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* @param bool $ini True, if scan for ini-files instead of config files
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*
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* @return array
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*/
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private function getConfigFiles(bool $ini = false)
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{
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$files = scandir($this->configDir);
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$found = array();
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$filePattern = ($ini ? '*.ini.php' : '*.config.php');
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// Don't load sample files
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$sampleEnd = self::SAMPLE_END . ($ini ? '.ini.php' : '.config.php');
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foreach ($files as $filename) {
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if (fnmatch($filePattern, $filename) && substr_compare($filename, $sampleEnd, -strlen($sampleEnd))) {
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$found[] = $this->configDir . '/' . $filename;
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}
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}
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return $found;
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}
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/**
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* Tries to load the legacy config files (.htconfig.php, .htpreconfig.php) and returns the config array.
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*
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* @param string $name The name of the config file (default is empty, which means .htconfig.php)
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*
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* @return array The configuration array (empty if no config found)
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*
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* @deprecated since version 2018.09
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*/
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private function loadLegacyConfig($name = '')
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{
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$name = !empty($name) ? $name : self::CONFIG_HTCONFIG;
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$fullName = $this->baseDir . DIRECTORY_SEPARATOR . '.' . $name . '.php';
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$config = [];
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if (file_exists($fullName)) {
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$a = new \stdClass();
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$a->config = [];
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include $fullName;
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$htConfigCategories = array_keys($a->config);
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// map the legacy configuration structure to the current structure
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foreach ($htConfigCategories as $htConfigCategory) {
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if (is_array($a->config[$htConfigCategory])) {
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$keys = array_keys($a->config[$htConfigCategory]);
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foreach ($keys as $key) {
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$config[$htConfigCategory][$key] = $a->config[$htConfigCategory][$key];
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}
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} else {
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$config['config'][$htConfigCategory] = $a->config[$htConfigCategory];
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}
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}
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unset($a);
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if (isset($db_host)) {
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$config['database']['hostname'] = $db_host;
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unset($db_host);
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}
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if (isset($db_user)) {
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$config['database']['username'] = $db_user;
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unset($db_user);
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}
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if (isset($db_pass)) {
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$config['database']['password'] = $db_pass;
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unset($db_pass);
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}
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if (isset($db_data)) {
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$config['database']['database'] = $db_data;
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unset($db_data);
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}
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if (isset($config['system']['db_charset'])) {
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$config['database']['charset'] = $config['system']['db_charset'];
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}
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if (isset($pidfile)) {
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$config['system']['pidfile'] = $pidfile;
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unset($pidfile);
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}
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if (isset($default_timezone)) {
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$config['system']['default_timezone'] = $default_timezone;
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unset($default_timezone);
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}
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if (isset($lang)) {
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$config['system']['language'] = $lang;
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unset($lang);
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}
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}
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return $config;
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}
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/**
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* Tries to load the specified legacy configuration file and returns the config array.
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*
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* @param string $filepath
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*
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* @return array The configuration array
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* @throws Exception
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* @deprecated since version 2018.12
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*/
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private function loadINIConfigFile($filepath)
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{
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$contents = include($filepath);
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$config = parse_ini_string($contents, true, INI_SCANNER_TYPED);
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if ($config === false) {
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throw new Exception('Error parsing INI config file ' . $filepath);
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}
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return $config;
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}
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/**
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* Tries to load the specified configuration file and returns the config array.
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*
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* The config format is PHP array and the template for configuration files is the following:
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*
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* <?php return [
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* 'section' => [
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* 'key' => 'value',
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* ],
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* ];
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*
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* @param string $filepath The filepath of the
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*
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* @return array The config array0
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*
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* @throws Exception if the config cannot get loaded.
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*/
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private function loadConfigFile($filepath)
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{
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$config = include($filepath);
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if (!is_array($config)) {
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throw new Exception('Error loading config file ' . $filepath);
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}
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return $config;
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}
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}
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