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634 lines
17 KiB
PHP
634 lines
17 KiB
PHP
<?php
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/**
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*
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* This file is part of the phpBB Forum Software package.
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*
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* @copyright (c) phpBB Limited <https://www.phpbb.com>
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* @license GNU General Public License, version 2 (GPL-2.0)
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*
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* For full copyright and license information, please see
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* the docs/CREDITS.txt file.
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*
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*/
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namespace phpbb\extension;
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use phpbb\exception\runtime_exception;
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use phpbb\file_downloader;
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use Symfony\Component\DependencyInjection\ContainerInterface;
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/**
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* The extension manager provides means to activate/deactivate extensions.
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*/
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class manager
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{
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/** @var ContainerInterface */
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protected $container;
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protected $db;
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protected $config;
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protected $cache;
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protected $php_ext;
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protected $extensions;
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protected $extension_table;
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protected $phpbb_root_path;
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protected $cache_name;
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/**
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* Creates a manager and loads information from database
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*
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* @param ContainerInterface $container A container
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* @param \phpbb\db\driver\driver_interface $db A database connection
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* @param \phpbb\config\config $config Config object
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* @param \phpbb\filesystem\filesystem_interface $filesystem
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* @param string $extension_table The name of the table holding extensions
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* @param string $phpbb_root_path Path to the phpbb includes directory.
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* @param string $php_ext php file extension, defaults to php
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* @param \phpbb\cache\service $cache A cache instance or null
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* @param string $cache_name The name of the cache variable, defaults to _ext
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*/
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public function __construct(ContainerInterface $container, \phpbb\db\driver\driver_interface $db, \phpbb\config\config $config, \phpbb\filesystem\filesystem_interface $filesystem, $extension_table, $phpbb_root_path, $php_ext = 'php', \phpbb\cache\service $cache = null, $cache_name = '_ext')
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{
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$this->cache = $cache;
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$this->cache_name = $cache_name;
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$this->config = $config;
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$this->container = $container;
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$this->db = $db;
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$this->extension_table = $extension_table;
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$this->filesystem = $filesystem;
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$this->phpbb_root_path = $phpbb_root_path;
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$this->php_ext = $php_ext;
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$this->extensions = ($this->cache) ? $this->cache->get($this->cache_name) : false;
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if ($this->extensions === false)
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{
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$this->load_extensions();
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}
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}
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/**
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* Loads all extension information from the database
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*
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* @return null
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*/
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public function load_extensions()
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{
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$this->extensions = array();
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// Do not try to load any extensions if the extension table
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// does not exist or when installing or updating.
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// Note: database updater invokes this code, and in 3.0
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// there is no extension table therefore the rest of this function
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// fails
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if (defined('IN_INSTALL') || version_compare($this->config['version'], '3.1.0-dev', '<'))
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{
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return;
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}
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$sql = 'SELECT *
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FROM ' . $this->extension_table;
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$result = $this->db->sql_query($sql);
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$extensions = $this->db->sql_fetchrowset($result);
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$this->db->sql_freeresult($result);
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foreach ($extensions as $extension)
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{
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$extension['ext_path'] = $this->get_extension_path($extension['ext_name']);
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$this->extensions[$extension['ext_name']] = $extension;
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}
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ksort($this->extensions);
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if ($this->cache)
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{
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$this->cache->put($this->cache_name, $this->extensions);
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}
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}
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/**
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* Generates the path to an extension
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*
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* @param string $name The name of the extension
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* @param bool $phpbb_relative Whether the path should be relative to phpbb root
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* @return string Path to an extension
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*/
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public function get_extension_path($name, $phpbb_relative = false)
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{
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$name = str_replace('.', '', $name);
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return (($phpbb_relative) ? $this->phpbb_root_path : '') . 'ext/' . $name . '/';
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}
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/**
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* Instantiates the extension meta class for the extension with the given name
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*
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* @param string $name The extension name
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* @return \phpbb\extension\extension_interface Instance of the extension meta class or
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* \phpbb\extension\base if the class does not exist
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*/
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public function get_extension($name)
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{
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$extension_class_name = str_replace('/', '\\', $name) . '\\ext';
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$migrator = $this->container->get('migrator');
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if (class_exists($extension_class_name))
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{
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return new $extension_class_name($this->container, $this->get_finder(), $migrator, $name, $this->get_extension_path($name, true));
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}
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else
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{
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return new \phpbb\extension\base($this->container, $this->get_finder(), $migrator, $name, $this->get_extension_path($name, true));
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}
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}
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/**
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* Instantiates the metadata manager for the extension with the given name
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*
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* @param string $name The extension name
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* @return \phpbb\extension\metadata_manager Instance of the metadata manager
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*/
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public function create_extension_metadata_manager($name)
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{
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if (!isset($this->extensions[$name]['metadata']))
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{
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$metadata = new \phpbb\extension\metadata_manager($name, $this->get_extension_path($name, true));
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$this->extensions[$name]['metadata'] = $metadata;
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}
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return $this->extensions[$name]['metadata'];
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}
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/**
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* Runs a step of the extension enabling process.
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*
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* Allows the exentension to enable in a long running script that works
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* in multiple steps across requests. State is kept for the extension
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* in the extensions table.
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*
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* @param string $name The extension's name
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* @return bool False if enabling is finished, true otherwise
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*/
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public function enable_step($name)
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{
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// ignore extensions that are already enabled
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if ($this->is_enabled($name))
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{
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return false;
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}
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$old_state = (isset($this->extensions[$name]['ext_state'])) ? unserialize($this->extensions[$name]['ext_state']) : false;
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$extension = $this->get_extension($name);
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if (!$extension->is_enableable())
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{
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return false;
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}
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$state = $extension->enable_step($old_state);
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$active = ($state === false);
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$extension_data = array(
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'ext_name' => $name,
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'ext_active' => $active,
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'ext_state' => serialize($state),
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);
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$this->extensions[$name] = $extension_data;
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$this->extensions[$name]['ext_path'] = $this->get_extension_path($extension_data['ext_name']);
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ksort($this->extensions);
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$sql = 'SELECT COUNT(ext_name) as row_count
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FROM ' . $this->extension_table . "
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WHERE ext_name = '" . $this->db->sql_escape($name) . "'";
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$result = $this->db->sql_query($sql);
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$count = $this->db->sql_fetchfield('row_count');
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$this->db->sql_freeresult($result);
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if ($count)
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{
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$sql = 'UPDATE ' . $this->extension_table . '
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SET ' . $this->db->sql_build_array('UPDATE', $extension_data) . "
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WHERE ext_name = '" . $this->db->sql_escape($name) . "'";
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$this->db->sql_query($sql);
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}
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else
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{
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$sql = 'INSERT INTO ' . $this->extension_table . '
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' . $this->db->sql_build_array('INSERT', $extension_data);
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$this->db->sql_query($sql);
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}
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if ($this->cache)
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{
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$this->cache->purge();
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}
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if ($active)
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{
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$this->config->increment('assets_version', 1);
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}
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return !$active;
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}
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/**
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* Enables an extension
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*
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* This method completely enables an extension. But it could be long running
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* so never call this in a script that has a max_execution time.
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*
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* @param string $name The extension's name
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* @return null
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*/
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public function enable($name)
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{
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// @codingStandardsIgnoreStart
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while ($this->enable_step($name));
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// @codingStandardsIgnoreEnd
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}
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/**
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* Disables an extension
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*
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* Calls the disable method on the extension's meta class to allow it to
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* process the event.
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*
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* @param string $name The extension's name
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* @return bool False if disabling is finished, true otherwise
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*/
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public function disable_step($name)
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{
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// ignore extensions that are already disabled
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if ($this->is_disabled($name))
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{
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return false;
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}
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$old_state = unserialize($this->extensions[$name]['ext_state']);
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$extension = $this->get_extension($name);
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$state = $extension->disable_step($old_state);
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// continue until the state is false
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if ($state !== false)
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{
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$extension_data = array(
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'ext_state' => serialize($state),
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);
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$this->extensions[$name]['ext_state'] = serialize($state);
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$sql = 'UPDATE ' . $this->extension_table . '
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SET ' . $this->db->sql_build_array('UPDATE', $extension_data) . "
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WHERE ext_name = '" . $this->db->sql_escape($name) . "'";
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$this->db->sql_query($sql);
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if ($this->cache)
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{
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$this->cache->purge();
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}
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return true;
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}
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$extension_data = array(
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'ext_active' => false,
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'ext_state' => serialize(false),
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);
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$this->extensions[$name]['ext_active'] = false;
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$this->extensions[$name]['ext_state'] = serialize(false);
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$sql = 'UPDATE ' . $this->extension_table . '
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SET ' . $this->db->sql_build_array('UPDATE', $extension_data) . "
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WHERE ext_name = '" . $this->db->sql_escape($name) . "'";
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$this->db->sql_query($sql);
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if ($this->cache)
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{
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$this->cache->purge();
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}
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return false;
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}
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/**
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* Disables an extension
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*
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* Disables an extension completely at once. This process could run for a
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* while so never call this in a script that has a max_execution time.
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*
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* @param string $name The extension's name
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* @return null
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*/
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public function disable($name)
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{
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// @codingStandardsIgnoreStart
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while ($this->disable_step($name));
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// @codingStandardsIgnoreEnd
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}
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/**
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* Purge an extension
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*
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* Disables the extension first if active, and then calls purge on the
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* extension's meta class to delete the extension's database content.
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*
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* @param string $name The extension's name
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* @return bool False if purging is finished, true otherwise
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*/
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public function purge_step($name)
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{
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// ignore extensions that are not configured
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if (!$this->is_configured($name))
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{
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return false;
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}
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// disable first if necessary
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if ($this->extensions[$name]['ext_active'])
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{
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$this->disable($name);
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}
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$old_state = unserialize($this->extensions[$name]['ext_state']);
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$extension = $this->get_extension($name);
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$state = $extension->purge_step($old_state);
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// continue until the state is false
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if ($state !== false)
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{
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$extension_data = array(
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'ext_state' => serialize($state),
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);
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$this->extensions[$name]['ext_state'] = serialize($state);
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$sql = 'UPDATE ' . $this->extension_table . '
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SET ' . $this->db->sql_build_array('UPDATE', $extension_data) . "
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WHERE ext_name = '" . $this->db->sql_escape($name) . "'";
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$this->db->sql_query($sql);
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if ($this->cache)
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{
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$this->cache->purge();
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}
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return true;
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}
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unset($this->extensions[$name]);
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$sql = 'DELETE FROM ' . $this->extension_table . "
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WHERE ext_name = '" . $this->db->sql_escape($name) . "'";
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$this->db->sql_query($sql);
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if ($this->cache)
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{
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$this->cache->purge();
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}
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return false;
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}
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/**
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* Purge an extension
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*
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* Purges an extension completely at once. This process could run for a while
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* so never call this in a script that has a max_execution time.
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*
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* @param string $name The extension's name
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* @return null
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*/
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public function purge($name)
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{
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// @codingStandardsIgnoreStart
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while ($this->purge_step($name));
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// @codingStandardsIgnoreEnd
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}
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/**
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* Retrieves a list of all available extensions on the filesystem
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*
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* @return array An array with extension names as keys and paths to the
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* extension as values
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*/
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public function all_available()
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{
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$available = array();
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if (!is_dir($this->phpbb_root_path . 'ext/'))
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{
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return $available;
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}
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$iterator = new \RecursiveIteratorIterator(
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new \phpbb\recursive_dot_prefix_filter_iterator(
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new \RecursiveDirectoryIterator($this->phpbb_root_path . 'ext/', \FilesystemIterator::NEW_CURRENT_AND_KEY | \FilesystemIterator::FOLLOW_SYMLINKS)
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),
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\RecursiveIteratorIterator::SELF_FIRST
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);
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$iterator->setMaxDepth(2);
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foreach ($iterator as $file_info)
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{
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if ($file_info->isFile() && $file_info->getFilename() == 'composer.json')
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{
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$ext_name = $iterator->getInnerIterator()->getSubPath();
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$ext_name = str_replace(DIRECTORY_SEPARATOR, '/', $ext_name);
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if ($this->is_available($ext_name))
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{
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$available[$ext_name] = $this->get_extension_path($ext_name, true);
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}
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}
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}
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ksort($available);
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return $available;
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}
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/**
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* Retrieves all configured extensions.
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*
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* All enabled and disabled extensions are considered configured. A purged
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* extension that is no longer in the database is not configured.
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*
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* @param bool $phpbb_relative Whether the path should be relative to phpbb root
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*
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* @return array An array with extension names as keys and and the
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* database stored extension information as values
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*/
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public function all_configured($phpbb_relative = true)
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{
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$configured = array();
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foreach ($this->extensions as $name => $data)
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{
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if ($this->is_configured($name))
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{
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unset($data['metadata']);
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$data['ext_path'] = ($phpbb_relative ? $this->phpbb_root_path : '') . $data['ext_path'];
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$configured[$name] = $data;
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}
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}
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return $configured;
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}
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/**
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* Retrieves all enabled extensions.
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* @param bool $phpbb_relative Whether the path should be relative to phpbb root
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*
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* @return array An array with extension names as keys and and the
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* database stored extension information as values
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*/
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public function all_enabled($phpbb_relative = true)
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{
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$enabled = array();
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foreach ($this->extensions as $name => $data)
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{
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if ($this->is_enabled($name))
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{
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$enabled[$name] = ($phpbb_relative ? $this->phpbb_root_path : '') . $data['ext_path'];
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}
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}
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return $enabled;
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}
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/**
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* Retrieves all disabled extensions.
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*
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* @param bool $phpbb_relative Whether the path should be relative to phpbb root
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*
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* @return array An array with extension names as keys and and the
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* database stored extension information as values
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*/
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public function all_disabled($phpbb_relative = true)
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{
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$disabled = array();
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foreach ($this->extensions as $name => $data)
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{
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if ($this->is_disabled($name))
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{
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$disabled[$name] = ($phpbb_relative ? $this->phpbb_root_path : '') . $data['ext_path'];
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}
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}
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return $disabled;
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}
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/**
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* Check to see if a given extension is available on the filesystem
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*
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* @param string $name Extension name to check NOTE: Can be user input
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* @return bool Depending on whether or not the extension is available
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*/
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public function is_available($name)
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{
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$md_manager = $this->create_extension_metadata_manager($name);
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try
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{
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return $md_manager->get_metadata('all') && $md_manager->validate_enable();
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}
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catch (\phpbb\extension\exception $e)
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{
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return false;
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}
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}
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/**
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* Check to see if a given extension is enabled
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*
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* @param string $name Extension name to check
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* @return bool Depending on whether or not the extension is enabled
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*/
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public function is_enabled($name)
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{
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return isset($this->extensions[$name]['ext_active']) && $this->extensions[$name]['ext_active'];
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}
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/**
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* Check to see if a given extension is disabled
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*
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* @param string $name Extension name to check
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* @return bool Depending on whether or not the extension is disabled
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*/
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public function is_disabled($name)
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{
|
|
return isset($this->extensions[$name]['ext_active']) && !$this->extensions[$name]['ext_active'];
|
|
}
|
|
|
|
/**
|
|
* Check to see if a given extension is configured
|
|
*
|
|
* All enabled and disabled extensions are considered configured. A purged
|
|
* extension that is no longer in the database is not configured.
|
|
*
|
|
* @param string $name Extension name to check
|
|
* @return bool Depending on whether or not the extension is configured
|
|
*/
|
|
public function is_configured($name)
|
|
{
|
|
return isset($this->extensions[$name]['ext_active']);
|
|
}
|
|
|
|
/**
|
|
* Check the version and return the available updates (for an extension).
|
|
*
|
|
* @param \phpbb\extension\metadata_manager $md_manager The metadata manager for the version to check.
|
|
* @param bool $force_update Ignores cached data. Defaults to false.
|
|
* @param bool $force_cache Force the use of the cache. Override $force_update.
|
|
* @param string $stability Force the stability (null by default).
|
|
* @return array
|
|
* @throws runtime_exception
|
|
*/
|
|
public function version_check(\phpbb\extension\metadata_manager $md_manager, $force_update = false, $force_cache = false, $stability = null)
|
|
{
|
|
$meta = $md_manager->get_metadata('all');
|
|
|
|
if (!isset($meta['extra']['version-check']))
|
|
{
|
|
throw new runtime_exception('NO_VERSIONCHECK');
|
|
}
|
|
|
|
$version_check = $meta['extra']['version-check'];
|
|
|
|
$version_helper = new \phpbb\version_helper($this->cache, $this->config, new file_downloader());
|
|
$version_helper->set_current_version($meta['version']);
|
|
$version_helper->set_file_location($version_check['host'], $version_check['directory'], $version_check['filename'], isset($version_check['ssl']) ? $version_check['ssl'] : false);
|
|
$version_helper->force_stability($stability);
|
|
|
|
return $version_helper->get_ext_update_on_branch($force_update, $force_cache);
|
|
}
|
|
|
|
/**
|
|
* Check to see if a given extension is purged
|
|
*
|
|
* An extension is purged if it is available, not enabled and not disabled.
|
|
*
|
|
* @param string $name Extension name to check
|
|
* @return bool Depending on whether or not the extension is purged
|
|
*/
|
|
public function is_purged($name)
|
|
{
|
|
return $this->is_available($name) && !$this->is_configured($name);
|
|
}
|
|
|
|
/**
|
|
* Instantiates a \phpbb\finder.
|
|
*
|
|
* @param bool $use_all_available Should we load all extensions, or just enabled ones
|
|
* @return \phpbb\finder An extension finder instance
|
|
*/
|
|
public function get_finder($use_all_available = false)
|
|
{
|
|
$finder = new \phpbb\finder($this->filesystem, $this->phpbb_root_path, $this->cache, $this->php_ext, $this->cache_name . '_finder');
|
|
if ($use_all_available)
|
|
{
|
|
$finder->set_extensions(array_keys($this->all_available()));
|
|
}
|
|
else
|
|
{
|
|
$finder->set_extensions(array_keys($this->all_enabled()));
|
|
}
|
|
return $finder;
|
|
}
|
|
}
|