1<?php
2/**
3 *
4 * This file is part of the phpBB Forum Software package.
5 *
6 * @copyright (c) phpBB Limited <https://www.phpbb.com>
7 * @license GNU General Public License, version 2 (GPL-2.0)
8 *
9 * For full copyright and license information, please see
10 * the docs/CREDITS.txt file.
11 *
12 */
13
14namespace phpbb\install\module\obtain_data\task;
15
16use phpbb\install\exception\user_interaction_required_exception;
17use phpbb\install\helper\config;
18use phpbb\install\helper\iohandler\iohandler_interface;
19use phpbb\install\task_base;
20
21class obtain_file_updater_method extends task_base
22{
23	/**
24	 * @var array	Supported compression methods
25	 *
26	 * Note: .tar is assumed to be supported, but not in the list
27	 */
28	protected $available_methods;
29
30	/**
31	 * @var config
32	 */
33	protected $installer_config;
34
35	/**
36	 * @var iohandler_interface
37	 */
38	protected $iohandler;
39
40	/**
41	 * Constructor
42	 *
43	 * @param config				$installer_config
44	 * @param iohandler_interface	$iohandler
45	 */
46	public function __construct(config $installer_config, iohandler_interface $iohandler)
47	{
48		$this->installer_config	= $installer_config;
49		$this->iohandler		= $iohandler;
50
51		$this->available_methods = array('.tar.gz' => 'zlib', '.tar.bz2' => 'bz2', '.zip' => 'zlib');
52
53		parent::__construct(false);
54	}
55
56	/**
57	 * {@inheritdoc}
58	 */
59	public function check_requirements()
60	{
61		return $this->installer_config->get('do_update_files', false);
62	}
63
64	/**
65	 * {@inheritdoc}
66	 */
67	public function run()
68	{
69		// Check if data is sent
70		if ($this->iohandler->get_input('submit_update_file', false))
71		{
72			$supported_methods = array('compression', 'ftp', 'direct_file');
73			$method = $this->iohandler->get_input('method', 'compression');
74			$update_method = (in_array($method, $supported_methods, true)) ? $method : 'compression';
75			$this->installer_config->set('file_update_method', $update_method);
76
77			$compression = $this->iohandler->get_input('compression_method', '.zip');
78			$supported_methods = array_keys($this->available_methods);
79			$supported_methods[] = '.tar';
80			$compression = (in_array($compression, $supported_methods, true)) ? $compression : '.zip';
81			$this->installer_config->set('file_update_compression', $compression);
82		}
83		else
84		{
85			$this->iohandler->add_user_form_group('UPDATE_FILE_METHOD_TITLE', array(
86				'method' => array(
87					'label'		=> 'UPDATE_FILE_METHOD',
88					'type'		=> 'select',
89					'options'	=> array(
90						array(
91							'value'		=> 'compression',
92							'label'		=> 'UPDATE_FILE_METHOD_DOWNLOAD',
93							'selected'	=> true,
94						),
95						array(
96							'value'		=> 'ftp',
97							'label'		=> 'UPDATE_FILE_METHOD_FTP',
98							'selected'	=> false,
99						),
100						array(
101							'value'		=> 'direct_file',
102							'label'		=> 'UPDATE_FILE_METHOD_FILESYSTEM',
103							'selected'	=> false,
104						),
105					),
106				),
107				'compression_method' => array(
108					'label'		=> 'SELECT_DOWNLOAD_FORMAT',
109					'type'		=> 'select',
110					'options'	=> $this->get_available_compression_methods(),
111				),
112				'submit_update_file' => array(
113					'label'	=> 'SUBMIT',
114					'type'	=> 'submit',
115				),
116			));
117
118			throw new user_interaction_required_exception();
119		}
120	}
121
122	/**
123	 * Returns form elements in an array of available compression methods
124	 *
125	 * @return array
126	 */
127	protected function get_available_compression_methods()
128	{
129		$methods[] = array(
130			'value'		=> '.tar',
131			'label'		=> '.tar',
132			'selected'	=> true,
133		);
134
135		foreach ($this->available_methods as $type => $module)
136		{
137			if (!@extension_loaded($module))
138			{
139				continue;
140			}
141
142			$methods[] = array(
143				'value'		=> $type,
144				'label'		=> $type,
145				'selected'	=> false,
146			);
147		}
148
149		return $methods;
150	}
151
152	/**
153	 * {@inheritdoc}
154	 */
155	static public function get_step_count()
156	{
157		return 0;
158	}
159
160	/**
161	 * {@inheritdoc}
162	 */
163	public function get_task_lang_name()
164	{
165		return '';
166	}
167}
168