Просмотр файла modules/downloads/controllers/downloads.php

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<?php
/**
 * Ant0ha's project
 *
 * @package
 * @author Anton Pisarenko <[email protected]>
 * @copyright Copyright (c) 2006 - 2010, Anton Pisarenko
 * @license http://ant0ha.ru/license.txt
 * @link http://ant0ha.ru
 */

//---------------------------------------------

# Папка с файлами загрузок
define('DOWNLOADS_DIRECTORY', 'files/downloads/');
# Максимальный размер файла для скачивания через force_download
define('FORCE_DOWNLOAD_MAX_FILESIZE', 0);

/**
 * Контроллер пользовательской части загруз центра
 */
class Downloads_Controller extends Controller {
	/**
	* Construct
	*/
	public function __construct() {
		parent::__construct();
		if(isset($_GET['preview'])) {
			if($_GET['preview'] == 0 || $_GET['preview'] == 20 || $_GET['preview'] == 60 || $_GET['preview'] == 100)
				$_SESSION['downloads_preview'] = $_GET['preview'];
		}
		if(isset($_GET['order_by'])) {
			if($_GET['order_by'] == 'name' || $_GET['order_by'] == 'time' || $_GET['order_by'] == 'downloads')
				$_SESSION['order_by'] = $_GET['order_by'];
		}
		# Хелпер загрузок
		a_import('modules/downloads/helpers/downloads');
	}

	/**
	* Метод по умолчанию
	*/
	public function action_index() {
		$this->action_list_files();
	}

	/**
	* Выбор превьюшек
	*/
	public function change_previews() {
		$this->tpl->display('preview');
		exit;
	}

	/**
	* Листинг файлов
	*/
	public function action_list_files() {
		if(!isset($_SESSION['downloads_preview'])) $_SESSION['downloads_preview'] = 60;

		if(empty($_GET['directory_id']) OR !is_numeric($_GET['directory_id'])) {
			$directory_id = 0;
		}
		else {
			$directory_id = intval($_GET['directory_id']);
			if(!$directory = $this->db->get_row("SELECT * FROM #__downloads_directories WHERE directory_id = '$directory_id'")) {
				a_error('Папка не найдена!');
			}
		}

		switch($_GET['action']) {
			# Поиск файлов
			case 'search':
				$action = 'search';
				$title = 'Результаты поиска';
				$sql = "SELECT SQL_CALC_FOUND_ROWS
						file_id,
						name,
						'file' AS type,
						file_ext,
						0 AS count_files,
						0 AS new_day,
						real_name,
						filesize,
						time,
						path_to_file,
						downloads,
						screen1,
						about,
						previews,
						(SELECT 0) AS position
						FROM #__downloads_files
						WHERE
						name LIKE '%". a_safe($_GET['search_word']) ."%' ";

				if($directory_id != 0) $sql .= " AND path_to_file LIKE '%/". $directory_id ."/%' ";
				if(empty($_GET['search_word'])) $sql .= " AND 1 = 0 ";

				$sql .= " LIMIT $this->start, $this->per_page";
				break;
			
			# Список новых файлов
			case 'new_files':
				$action = 'new_files';
				$title = 'Новые файлы';
				$sql = "SELECT SQL_CALC_FOUND_ROWS
						file_id,
						name,
						'file' AS type,
						file_ext,
						0 AS count_files,
						0 AS new_day,
						real_name,
						filesize,
						time,
						path_to_file,
						downloads,
						screen1,
						about,
						previews,
						(SELECT 0) AS position
						FROM #__downloads_files
						WHERE 1 = 1 ";

				if($directory_id != 0) $sql .= " AND path_to_file LIKE '%/". $directory_id ."/%' ";

				$sql .= " ORDER BY time DESC ";
				$sql .= " LIMIT $this->start, $this->per_page";
				break;

			# Список папок и файлов
			default:
				$action = 'list';
				$title = 'Загрузки'. (!empty($directory['name']) ? ' | '. $directory['name'] : '');
				# Определяем папка с файлами или папками
				if($this->db->get_one("SELECT file_id FROM #__downloads_files WHERE directory_id = $directory_id AND real_name != ''")) {
					$is_files_directory = true;
					$this->per_page = $this->config['downloads']['files_per_page'];
				}
				else {
					$is_files_directory = false;
					$this->per_page = $this->config['downloads']['directories_per_page'];
				}

				$this->tpl->assign('is_files_directory', $is_files_directory);

				if($directory['images'] == 'yes' && !isset($_GET['preview']) && !isset($_GET['start'])) {
					$this->change_previews();
				}

				$directory_path = downloads::get_path($directory_id, $this->db);
				$namepath = downloads::get_namepath($directory_path, ' » ');


				# Получаем список папок и файлов
				$sql  = "SELECT SQL_CALC_FOUND_ROWS
						dd.directory_id AS file_id,
						dd.name,
						'directory' AS type,
						'directory' AS file_ext,
						0 AS real_name,
						0 AS filesize,
						0 AS time,
						0 AS path_to_file,
						0 AS downloads,
						0 AS screen1,
						0 AS about,
						0 AS previews,
						dd.position
						FROM #__downloads_directories AS dd
						WHERE dd.parent_id = '$directory_id'". PHP_EOL;
				$sql .= "UNION ALL". PHP_EOL;
				$sql .= "SELECT
						file_id,
						name,
						'file' AS type,
						file_ext,
						real_name,
						filesize,
						time,
						path_to_file,
						downloads,
						screen1,
						about,
						previews,
						(SELECT 0) AS position
						FROM #__downloads_files
						WHERE
						directory_id = '$directory_id' AND
						status = 'active' AND
						real_name != ''". PHP_EOL;

				$sql .= "ORDER BY type ASC, ";

				# Сортировка
				if($is_files_directory) {
					switch($_SESSION['order_by']) {
						case 'name':
							$sql .= "name ASC ";
							break;
						case 'downloads':
							$sql .= "downloads DESC ";
							break;
						default:
							$sql .= "time DESC ";
							break;
					}
				}
				else $sql .= "position ASC ";

				$sql .= " LIMIT $this->start, $this->per_page";
				break;
		}
		
		# Работаем с кешем
		if($action == 'list' && !$is_files_directory && $this->config['downloads']['cache_time'] > 0) {
			$using_cache = true;
			
			$cache_key = 'downloads_'. $directory_id .'_'. $this->start;
			$files = $this->cache->get($cache_key, $this->config['downloads']['cache_time'] * 60);
		}
		
		if(empty($files)) {
			$result = $this->db->query($sql);
			$total = $this->db->get_one("SELECT FOUND_ROWS()");
	
			$files = array();
			while($file = $this->db->fetch_array($result)) {
				# Получаем счетчики файлов в папках
				if($file['type'] == 'directory') {
					$counts = $this->db->get_row("SELECT
						COUNT(CASE WHEN status = 'active' THEN 1 END) AS count_files,
						COUNT(CASE WHEN time > UNIX_TIMESTAMP( ) - 86400 THEN 1 END) AS new_day
						FROM #__downloads_files
						WHERE path_to_file LIKE '%/". $file['file_id'] ."/%'
					");
					
					$file['count_files'] = $counts['count_files'];
					$file['new_day'] = $counts['new_day'];
				}
				
				$files[] = $file;
			}
			
			$files['total'] = $total;
			
			if($using_cache) $this->cache->set($cache_key, $files);
		}

		# Пагинация
		$http_query = http_build_query(array(
			'directory_id' => $_GET['directory_id'],
			'action' => $_GET['action'],
			'search_word' => $_GET['search_word']
		), '', '&amp;');

		$pg_conf['base_url'] = a_url('downloads/list_files', $http_query .'&amp;start=');
		$pg_conf['total_rows'] = $files['total'];
		$pg_conf['per_page'] = $this->per_page;

		a_import('libraries/pagination');
		$pg = new CI_Pagination($pg_conf);
		
		# Удаляем лишние данные
		unset($files['total']);

		$this->tpl->assign(array(
			'files' => $files,
			'total' => $total,
			'action' => $action,
			'title' => $title,
			'navigation' => $namepath,
			'pagination' => $pg->create_links(),
			'directory' => $directory
		));

		$this->tpl->display('list_files');
	}

	/**
	* Форма поиска
	*/
	public function action_search_form() {
		if(empty($_GET['directory_id']) OR !is_numeric($_GET['directory_id'])) {
			$directory_id = 0;
		}
		else {
			$directory_id = intval($_GET['directory_id']);
			if(!$directory = $this->db->get_row("SELECT * FROM #__downloads_directories WHERE directory_id = '$directory_id'")) {
				a_error('Папка не найдена!');
			}
			$this->tpl->assign('directory', $directory);
		}

		if(isset($_GET['send'])) {
			if(empty($_GET['search_word']))
				$this->error .= 'Укажите запрос<br />';

			if(!$this->error) {
				header('Location: '. a_url('downloads/list_files', 'action=search&search_word='. urlencode($_GET['search_word']) .'&directory_id='. $directory_id, true));
				exit;
			}
		}
		if(!isset($_GET['send']) OR $this->error) {
			$this->tpl->assign(array(
				'error' => $this->error,
				'directory_id' => $directory_id
			));

			$this->tpl->display('search_form');
		}
	}

	/**
	* Скачивание файла
	*/
	public function action_download_file() {
		$file_id = intval($_GET['file_id']);

		if(!$file = $this->db->get_row("SELECT * FROM #__downloads_files WHERE file_id = '$file_id'"))
			a_error('Файл не найден!');

		# Обновляем количество закачек файла
		$this->db->query("UPDATE #__downloads_files SET downloads = downloads + 1 WHERE file_id = '$file_id'");

		if(!file_exists(ROOT . $file['path_to_file'] .'/'. $file['real_name']))
			a_error('Файл отсутствует!');

		if($file['filesize'] > FORCE_DOWNLOAD_MAX_FILESIZE) {
			header('location: '. URL . $file['path_to_file'] .'/'. $file['real_name']);
			exit;
		}
		else {
			$file_content = file_get_contents(ROOT . $file['path_to_file'] .'/'. $file['real_name']);
			downloads::force_download($file['real_name'], $file_content, $file_id .'_'. $CONFIG['downloads_prefix'] .'_', FALSE);
		}
	}

	/**
	* Получение jad из jar
	*/
	public function action_get_jad() {
		if(!$file = $this->db->get_row("SELECT * FROM #__downloads_files WHERE file_id = '". intval($_GET['file_id']) ."'"))
    		a_error("Файл не найден!");

		if(is_numeric($_GET['add_file'])) {
			if(!empty($file['add_file_real_name_'. $_GET['add_file']])) {
				$jar_name = $file['add_file_real_name_'. $_GET['add_file']];
				$file_ext = array_pop(explode('.', $jar_name));
			}
			else a_error("Дополнительный файл не найтен!");
		}
		else {
			$jar_name = $file['real_name'];
			$file_ext = $file['file_ext'];
		}
	
		if($file_ext != 'jar') a_error("Это не JAR файл!");

		# Увеличиваем количество скачиваний файла
		$this->db->query("UPDATE a_downloads_files SET downloads = downloads + 1 WHERE file_id = '". $file['file_id'] ."'");
	
		if(!class_exists('PclZip')) a_import('libraries/pclzip.lib');
		a_import('libraries/j2me_tools');
	
		$jar_path = ROOT . $file['path_to_file'] .'/'. $jar_name;
		$jar_url = URL . $file['path_to_file'] .'/'. $jar_name;
		$jad_contents = j2me_tools::get_jad($jar_path, $jar_url);
	
		header('Content-type: text/vnd.sun.j2me.app-descriptor;charset=UTF-8');
		echo $jad_contents;
	}

	/**
	* Просмотр деталей файла
	*/
	public function action_view_file() {
		# Инфо о файле
		if(!$file = $this->db->get_row("SELECT *,
		 	(SELECT username FROM #__users AS u WHERE u.user_id = df.user_id) AS username,
		 	(SELECT COUNT(*) FROM #__comments_posts WHERE module = 'downloads' AND item_id = df.file_id) comments
		 	FROM #__downloads_files AS df WHERE df.file_id = '". intval($_GET['file_id']) ."'"))
			a_error('Файл не найден!');

		$directory = $this->db->get_row("SELECT * FROM #__downloads_directories WHERE directory_id = '". $file['directory_id'] ."'");
		if($this->db->get_one("SELECT id FROM a_rating_logs WHERE ip = '". a_safe($_SERVER['REMOTE_ADDR']) ."' AND module = 'downloads' AND item_id = '". $file['file_id'] ."'"))
			$file['rated'] = true;
		else $file['rated'] = false;

		# Получаем скриншоты файла
		$file['screens'] = '';
		if(!empty($file['screen1']) && empty($_GET['s']))
			$file['screens'] .= '<img src="'. URL . $file['path_to_file'] .'/'. $file['screen1'] .'" alt="" /><br />';
		elseif(!empty($file['screen2']) && $_GET['s'] == 2)
			$file['screens'] .= '<img src="'. URL . $file['path_to_file'] .'/'. $file['screen2'] .'" alt="" /><br />';
		elseif(!empty($file['screen3']) && $_GET['s'] == 3)
			$file['screens'] .= '<img src="'. URL . $file['path_to_file'] .'/'. $file['screen3'] .'" alt="" /><br />';

		if(!empty($file['screen2'])) {
			$file['screens'] .= empty($_GET['s']) ? '<b>1</b>' : '<a href="'. a_url('downloads/view_file', 'file_id='. $file['file_id']) .'">1</a>';
			$file['screens'] .= ', '. (($_GET['s'] == 2) ? '<b>2</b>' : '<a href="'. a_url('downloads/view_file', 'file_id='. $file['file_id'] .'&amp;s=2') .'">2</a>');
			if(!empty($file['screen3']))
				$file['screens'] .= ', '. (($_GET['s'] == 3) ? '<b>3</b>' : '<a href="'. a_url('downloads/view_file', 'file_id='. $file['file_id'] .'&amp;s=3') .'">3</a>');
		}

		if(!empty($file['screens'])) $file['screens'] .= '<br /><br />';

		$file['about'] = nl2br(main::bbcode($file['about']));
		$file['rating_stars'] = file_get_contents(URL .'main/rating?rate='. $file['rating']);

		$directory_path = downloads::get_path($file['directory_id'], $this->db);
		$navigation = downloads::get_namepath($directory_path, ' » ');

		if($directory['directory_id'] > 0)
			$navigation .= (!empty($navigation) ? ' » ' : '') .'<a href="'. a_url('downloads', 'directory_id='. $directory['directory_id']) .'">'. $directory['name'] .'</a>';

		$this->tpl->assign(array(
			'file' => $file,
			'directory' => $directory,
			'navigation' => $navigation
		));
	
		$this->tpl->display('view_file');
	}

	/**
	* Изменение рейтинга файла
	*/
	public function action_rating_change() {
		if(!$file = $this->db->get_row("SELECT file_id, user_id FROM a_downloads_files WHERE file_id = '". intval($_GET['file_id']) ."'"))
			a_error("Файл не найден!");

		if($this->db->get_one("SELECT id FROM a_rating_logs WHERE module = 'downloads' AND ip = '". a_safe($_SERVER['REMOTE_ADDR']) ."' AND item_id = '". $file['file_id'] ."'"))
			a_error("Вы голосовали за данный файл ранее!");

		if($file['user_id'] == USER_ID)
			a_error("Голосовать за свой файл нельзя!");

		$est = intval($_GET['est']);
		if($est != 1 && $est != 2 && $est != 3 && $est != 4 && $est != 5)
			a_error("Оценка не определена!");

		# Увеличиваем количество голосов
		$this->db->query("UPDATE a_downloads_files SET
			rating = (rating * rating_voices + $est) / (rating_voices + 1),
			rating_voices = rating_voices + 1
			WHERE file_id = '". $file['file_id'] ."'
		");

		# Добавляем голос в логи
		$this->db->query("INSERT INTO a_rating_logs SET
			module = 'downloads',
			ip = '". a_safe($_SERVER['REMOTE_ADDR']) ."',
			item_id = '". $file['file_id'] ."',
			time = UNIX_TIMESTAMP()
		");

		a_notice("Оценка принята!", URL .'downloads/view/'. $file['file_id']);
	}

	/**
	* Выгрузка файла пользователя
	*/
	public function action_add_file() {
		if(USER_ID == -1) a_notice('Гости не имеют права загружать файлы', a_url('user/login'));

		if(!$directory = $this->db->get_row("SELECT * FROM #__downloads_directories WHERE directory_id = '". intval($_GET['directory_id']) ."' AND user_files = 'yes'"))
			a_error('Папка не найдена, либо она не предназначена для загрузки файлов в неё');

		if(isset($_POST['submit'])) {
			$file = array();

			if(!empty($_FILES['file_upload']['tmp_name'])) {
				$type = 'upload';
				$file['real_name'] = $_FILES['file_upload']['name'];
				$file['file_ext'] = array_pop(explode('.', $file['real_name']));
				$file['filesize'] = filesize($_FILES['file_upload']['tmp_name']);
			}
			elseif(!empty($_POST['file_import']) && $_POST['file_import'] != 'http://') {
				$type = 'import';
				$file['real_name'] = basename($_POST['file_import']);
				$file['file_ext'] = array_pop(explode('.', $file['real_name']));
				$file['filesize'] = downloads::get_filesize($_POST['file_import']);
			}
			else $this->error = 'Укажите загружаемый файл<br />!';

			if(!strstr(';'. $this->config['downloads']['allowed_filetypes'] .';', ';'. $file['file_ext'] .';'))
				$this->error .= 'Вы пытаетесь загрузить запрещенный тип файла<br />';

			if(($file['filesize'] > $this->config['downloads']['max_filesize'] * 1048576) || $file['filesize'] === false)
				$this->error .= 'Размер загружаемого файла превышает допустимый размер ('. $this->config['downloads']['max_filesize'] .' Mb)<br />';

			if(!$this->error) {
				# Получаем ID файла
				$this->db->query("INSERT INTO #__downloads_files SET file_id = 'NULL'");
				$file_id = $this->db->insert_id();

				$directory_path = downloads::get_path($directory['directory_id'], &$this->db);
		   		$realpath = downloads::get_realpath($directory_path);
				$realpath = ($realpath != '' ? $realpath . '/' :  '') . ($directory['directory_id'] == 0 ? '' : $directory['directory_id'] . '/');

				# Создаем папку для файла
				mkdir(ROOT . DOWNLOADS_DIRECTORY . $realpath . $file_id);
   				chmod(ROOT . DOWNLOADS_DIRECTORY . $realpath . $file_id, 0777);

   				$path_to_file = DOWNLOADS_DIRECTORY . ($realpath != '' ? $realpath : '') . $file_id;

   				if($type == 'upload') {
   					$file_path = ROOT . $path_to_file .'/'. $_FILES['file_upload']['name'];
					copy($_FILES['file_upload']['tmp_name'], $file_path);
				}
				else {
					$file_path = ROOT . $path_to_file .'/'. basename($_POST['file_import']);
					copy($_POST['file_import'], $file_path);
				}

				$file['name'] = $_POST['name'];
				$file['about'] = $_POST['about'];
				$file['status'] = 'moderate';
				$file['user_id'] = USER_ID;
				$file['path_to_file'] = $path_to_file;
				$file['directory_id'] = $directory['directory_id'];

				# Выполняем действия над определенными типами файлов
				$file = downloads::filetype_actions($file);

				# Изменяем файл в базе
				downloads::update_file(&$this->db, $file_id, $file);

				a_notice('Файл успешно загружен, он будет доступен для скачивания другими пользователями после прохождения модерации', URL .'downloads/'. $directory['directory_id']);
			}
		}
		if(!isset($_POST['submit']) OR $this->error) {
			$this->tpl->assign(array(
				'error' => $this->error
			));
	
			$this->tpl->display('add_file');
		}
	}
}
?>