1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
|
<?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\language;
use \phpbb\language\exception\language_file_not_found;
/**
* Language file loader
*/
class language_file_loader
{
/**
* @var string Path to phpBB's root
*/
protected $phpbb_root_path;
/**
* @var string Extension of PHP files
*/
protected $php_ext;
/**
* @var \phpbb\extension\manager Extension manager
*/
protected $extension_manager;
/**
* Constructor
*
* @param string $phpbb_root_path Path to phpBB's root
* @param string $php_ext Extension of PHP files
*/
public function __construct($phpbb_root_path, $php_ext)
{
$this->phpbb_root_path = $phpbb_root_path;
$this->php_ext = $php_ext;
$this->extension_manager = null;
}
/**
* Extension manager setter
*
* @param \phpbb\extension\manager $extension_manager Extension manager
*/
public function set_extension_manager(\phpbb\extension\manager $extension_manager)
{
$this->extension_manager = $extension_manager;
}
/**
* Loads language array for the given component
*
* @param string $component Name of the language component
* @param string|array $locale ISO code of the language to load, or array of ISO codes if you want to
* specify additional language fallback steps
* @param array $lang Array reference containing language strings
*/
public function load($component, $locale, &$lang)
{
$locale = (array) $locale;
// Determine path to language directory
$path = $this->phpbb_root_path . 'language/';
$this->load_file($path, $component, $locale, $lang);
}
/**
* Loads language array for the given extension component
*
* @param string $extension Name of the extension
* @param string $component Name of the language component
* @param string|array $locale ISO code of the language to load, or array of ISO codes if you want to
* specify additional language fallback steps
* @param array $lang Array reference containing language strings
*/
public function load_extension($extension, $component, $locale, &$lang)
{
// Check if extension manager was loaded
if ($this->extension_manager === null)
{
// If not, let's return
return;
}
$locale = (array) $locale;
// Determine path to language directory
$path = $this->extension_manager->get_extension_path($extension, true) . 'language/';
$this->load_file($path, $component, $locale, $lang);
}
/**
* Prepares language file loading
*
* @param string $path Path to search for file in
* @param string $component Name of the language component
* @param array $locale Array containing language fallback options
* @param array $lang Array reference of language strings
*/
protected function load_file($path, $component, $locale, &$lang)
{
// This is BC stuff and not the best idea as it makes language fallback
// implementation quite hard like below.
if (strpos($this->phpbb_root_path . $component, $path) === 0)
{
// Filter out the path
$path_diff = str_replace($path, '', dirname($this->phpbb_root_path . $component));
$language_file = basename($component, '.' . $this->php_ext);
$component = '';
// This step is needed to resolve language/en/subdir style $component
// $path already points to the language base directory so we need to eliminate
// the first directory from the path (that should be the language directory)
$path_diff_parts = explode('/', $path_diff);
if (sizeof($path_diff_parts) > 1)
{
array_shift($path_diff_parts);
$component = implode('/', $path_diff_parts) . '/';
}
$component .= $language_file;
}
// Determine filename
$filename = $component . '.' . $this->php_ext;
// Determine path to file
$file_path = $this->get_language_file_path($path, $filename, $locale);
// Load language array
$this->load_language_file($file_path, $lang);
}
/**
* This function implements language fallback logic
*
* @param string $path Path to language directory
* @param string $filename Filename to load language strings from
*
* @return string Relative path to language file
*
* @throws language_file_not_found When the path to the file cannot be resolved
*/
protected function get_language_file_path($path, $filename, $locales)
{
$language_file_path = $filename;
// Language fallback logic
foreach ($locales as $locale)
{
$language_file_path = $path . $locale . '/' . $filename;
// If we are in install, try to use the updated version, when available
if (defined('IN_INSTALL'))
{
$install_language_path = str_replace('language/', 'install/update/new/language/', $language_file_path);
if (file_exists($install_language_path))
{
return $install_language_path;
}
}
if (file_exists($language_file_path))
{
return $language_file_path;
}
}
// The language file is not exist
throw new language_file_not_found('Language file ' . $language_file_path . ' couldn\'t be opened.');
}
/**
* Loads language file
*
* @param string $path Path to language file to load
* @param array $lang Reference of the array of language strings
*/
protected function load_language_file($path, &$lang)
{
// Do not suppress error if in DEBUG mode
if (defined('DEBUG'))
{
include $path;
}
else
{
@include $path;
}
}
}
|
