1 files changed, 275 insertions, 0 deletions
diff --git a/phpBB/phpbb/install/installer.php b/phpBB/phpbb/install/installer.php
new file mode 100644
index 0000000000..a41b4cd6a6
--- /dev/null
+++ b/phpBB/phpbb/install/installer.php
@@ -0,0 +1,275 @@
+<?php
+/**
+ *
+ * This file is part of the phpBB Forum Software package.
+ *
+ * @copyright (c) phpBB Limited <https://www.phpbb.com>
+ * @license GNU General Public License, version 2 (GPL-2.0)
+ *
+ * For full copyright and license information, please see
+ * the docs/CREDITS.txt file.
+ *
+ */
+
+namespace phpbb\install;
+
+use phpbb\cache\driver\driver_interface;
+use phpbb\di\ordered_service_collection;
+use phpbb\install\exception\installer_config_not_writable_exception;
+use phpbb\install\exception\jump_to_restart_point_exception;
+use phpbb\install\exception\resource_limit_reached_exception;
+use phpbb\install\exception\user_interaction_required_exception;
+use phpbb\install\helper\config;
+use phpbb\install\helper\iohandler\cli_iohandler;
+use phpbb\install\helper\iohandler\iohandler_interface;
+use phpbb\path_helper;
+
+class installer
+{
+	/**
+	 * @var driver_interface
+	 */
+	protected $cache;
+
+	/**
+	 * @var config
+	 */
+	protected $install_config;
+
+	/**
+	 * @var array
+	 */
+	protected $installer_modules;
+
+	/**
+	 * @var iohandler_interface
+	 */
+	protected $iohandler;
+
+	/**
+	 * @var string
+	 */
+	protected $web_root;
+
+	/**
+	 * Stores the number of steps that a given module has
+	 *
+	 * @var array
+	 */
+	protected $module_step_count;
+
+	/**
+	 * Constructor
+	 *
+	 * @param driver_interface	$cache			Cache service
+	 * @param config			$config			Installer config handler
+	 * @param path_helper		$path_helper	Path helper
+	 */
+	public function __construct(driver_interface $cache, config $config, path_helper $path_helper)
+	{
+		$this->cache				= $cache;
+		$this->install_config		= $config;
+		$this->installer_modules	= null;
+		$this->web_root				= $path_helper->get_web_root_path();
+	}
+
+	/**
+	 * Sets modules to execute
+	 *
+	 * Note: The installer will run modules in the order they are set in
+	 * the array.
+	 *
+	 * @param ordered_service_collection	$modules	Service collection of module service names
+	 */
+	public function set_modules(ordered_service_collection $modules)
+	{
+		$this->installer_modules = $modules;
+	}
+
+	/**
+	 * Sets input-output handler objects
+	 *
+	 * @param iohandler_interface	$iohandler
+	 */
+	public function set_iohandler(iohandler_interface $iohandler)
+	{
+		$this->iohandler = $iohandler;
+	}
+
+	/**
+	 * Run phpBB installer
+	 */
+	public function run()
+	{
+		// Load install progress
+		$this->install_config->load_config();
+
+		// Recover install progress
+		$module_name = $this->recover_progress();
+		$module_found = false;
+
+		// Variable used to check if the install process have been finished
+		$install_finished	= false;
+		$fail_cleanup		= false;
+		$send_refresh		= false;
+
+		// We are installing something, so the introduction stage can go now...
+		$this->install_config->set_finished_navigation_stage(array('install', 0, 'introduction'));
+		$this->iohandler->set_finished_stage_menu(array('install', 0, 'introduction'));
+
+		if ($this->install_config->get_task_progress_count() === 0)
+		{
+			// Count all tasks in the current installer modules
+			$step_count = 0;
+
+			/** @var \phpbb\install\module_interface $module */
+			foreach ($this->installer_modules as $name => $module)
+			{
+				$module_step_count = $module->get_step_count();
+				$step_count += $module_step_count;
+				$this->module_step_count[$name] = $module_step_count;
+			}
+
+			// Set task count
+			$this->install_config->set_task_progress_count($step_count);
+		}
+
+		// Set up progress information
+		$this->iohandler->set_task_count(
+			$this->install_config->get_task_progress_count()
+		);
+
+		try
+		{
+			foreach ($this->installer_modules as $name => $module)
+			{
+				// Skip forward until the current task is reached
+				if (!$module_found)
+				{
+					if ($module_name === $name || empty($module_name))
+					{
+						$module_found = true;
+					}
+					else
+					{
+						continue;
+					}
+				}
+
+				// Log progress
+				$this->install_config->set_active_module($name);
+
+				// Run until there are available resources
+				if ($this->install_config->get_time_remaining() <= 0 || $this->install_config->get_memory_remaining() <= 0)
+				{
+					throw new resource_limit_reached_exception();
+				}
+
+				// Check if module should be executed
+				if (!$module->is_essential() && !$module->check_requirements())
+				{
+					$this->install_config->set_finished_navigation_stage($module->get_navigation_stage_path());
+					$this->iohandler->set_finished_stage_menu($module->get_navigation_stage_path());
+
+					$this->iohandler->add_log_message(array(
+						'SKIP_MODULE',
+						$name,
+					));
+					$this->install_config->increment_current_task_progress($this->module_step_count[$name]);
+					continue;
+				}
+
+				// Set the correct stage in the navigation bar
+				$this->install_config->set_active_navigation_stage($module->get_navigation_stage_path());
+				$this->iohandler->set_active_stage_menu($module->get_navigation_stage_path());
+
+				$module->run();
+
+				$this->install_config->set_finished_navigation_stage($module->get_navigation_stage_path());
+				$this->iohandler->set_finished_stage_menu($module->get_navigation_stage_path());
+			}
+
+			// Installation finished
+			$install_finished = true;
+
+			if ($this->iohandler instanceof cli_iohandler)
+			{
+				$this->iohandler->add_success_message('INSTALLER_FINISHED');
+			}
+			else
+			{
+				global $SID;
+				$acp_url = $this->web_root . 'adm/index.php' . $SID;
+				$this->iohandler->add_success_message('INSTALLER_FINISHED', array(
+					'ACP_LINK',
+					$acp_url,
+				));
+			}
+		}
+		catch (user_interaction_required_exception $e)
+		{
+			// Do nothing
+		}
+		catch (resource_limit_reached_exception $e)
+		{
+			$send_refresh = true;
+		}
+		catch (jump_to_restart_point_exception $e)
+		{
+			$this->install_config->jump_to_restart_point($e->get_restart_point_name());
+			$send_refresh = true;
+		}
+		catch (\Exception $e)
+		{
+			$this->iohandler->add_error_message($e->getMessage());
+			$this->iohandler->send_response();
+			$fail_cleanup = true;
+		}
+
+		if ($install_finished)
+		{
+			// Send install finished message
+			$this->iohandler->set_progress('INSTALLER_FINISHED', $this->install_config->get_task_progress_count());
+		}
+		else if ($send_refresh)
+		{
+			$this->iohandler->request_refresh();
+			$this->iohandler->send_response();
+		}
+
+		// Save install progress
+		try
+		{
+			if ($install_finished || $fail_cleanup)
+			{
+				$this->install_config->clean_up_config_file();
+				$this->cache->purge();
+			}
+			else
+			{
+				$this->install_config->save_config();
+			}
+		}
+		catch (installer_config_not_writable_exception $e)
+		{
+			// It is allowed to fail this test during requirements testing
+			$progress_data = $this->install_config->get_progress_data();
+
+			if ($progress_data['last_task_module_name'] !== 'installer.module.requirements_install')
+			{
+				$this->iohandler->add_error_message('INSTALLER_CONFIG_NOT_WRITABLE');
+			}
+		}
+	}
+
+	/**
+	 * Recover install progress
+	 *
+	 * @return string	Index of the next installer module to execute
+	 */
+	protected function recover_progress()
+	{
+		$progress_array = $this->install_config->get_progress_data();
+		return $progress_array['last_task_module_name'];
+	}
+}