59177427 |
1 | <?php |
4b4abf93 |
2 | |
35586184 |
3 | /** |
d3bab52e |
4 | * SquirrelMail internationalization functions |
35586184 |
5 | * |
35586184 |
6 | * This file contains variuos functions that are needed to do |
7 | * internationalization of SquirrelMail. |
8 | * |
9 | * Internally the output character set is used. Other characters are |
10 | * encoded using Unicode entities according to HTML 4.0. |
11 | * |
47ccfad4 |
12 | * @copyright © 1999-2006 The SquirrelMail Project Team |
4b4abf93 |
13 | * @license http://opensource.org/licenses/gpl-license.php GNU Public License |
a8a1c36d |
14 | * @version $Id$ |
d6c32258 |
15 | * @package squirrelmail |
a8a1c36d |
16 | * @subpackage i18n |
35586184 |
17 | */ |
18 | |
c6cd3136 |
19 | /** @ignore */ |
20 | if (! defined('SM_PATH')) define('SM_PATH','../'); |
21 | |
d6c32258 |
22 | /** Everything uses global.php... */ |
961ca3d8 |
23 | require_once(SM_PATH . 'functions/global.php'); |
24 | |
3b84e1b1 |
25 | /** |
26 | * Gettext bindtextdomain wrapper. |
27 | * |
28 | * Wrapper solves differences between php versions in order to provide |
29 | * ngettext support. Should be used if translation uses ngettext |
30 | * functions. |
81be3f39 |
31 | * @since 1.5.1 |
3b84e1b1 |
32 | * @param string $domain gettext domain name |
33 | * @param string $dir directory that contains all translations |
34 | * @return string path to translation directory |
35 | */ |
36 | function sq_bindtextdomain($domain,$dir) { |
37 | global $l10n, $gettext_flags, $sm_notAlias; |
38 | |
39 | if ($gettext_flags==7) { |
40 | // gettext extension without ngettext |
41 | if (substr($dir, -1) != '/') $dir .= '/'; |
42 | $mofile=$dir . $sm_notAlias . '/LC_MESSAGES/' . $domain . '.mo'; |
43 | $input = new FileReader($mofile); |
44 | $l10n[$domain] = new gettext_reader($input); |
45 | } |
46 | |
47 | $dir=bindtextdomain($domain,$dir); |
48 | |
49 | return $dir; |
50 | } |
51 | |
52 | /** |
53 | * Gettext textdomain wrapper. |
54 | * Makes sure that gettext_domain global is modified. |
81be3f39 |
55 | * @since 1.5.1 |
3b84e1b1 |
56 | * @param string $name gettext domain name |
57 | * @return string gettext domain name |
58 | */ |
59 | function sq_textdomain($domain) { |
60 | global $gettext_domain; |
61 | $gettext_domain=textdomain($domain); |
62 | return $gettext_domain; |
63 | } |
64 | |
1989cc04 |
65 | /** |
66 | * php setlocale function wrapper |
67 | * |
68 | * From php 4.3.0 it is possible to use arrays in order to set locale. |
69 | * php gettext extension works only when locale is set. This wrapper |
70 | * function allows to use more than one locale name. |
71 | * |
598294a7 |
72 | * @param int $category locale category name. Use php named constants |
73 | * (LC_ALL, LC_COLLATE, LC_CTYPE, LC_MONETARY, LC_NUMERIC, LC_TIME) |
1989cc04 |
74 | * @param mixed $locale option contains array with possible locales or string with one locale |
75 | * @return string name of set locale or false, if all locales fail. |
480feeac |
76 | * @since 1.5.1 and 1.4.5 |
1989cc04 |
77 | * @see http://www.php.net/setlocale |
78 | */ |
79 | function sq_setlocale($category,$locale) { |
80 | // string with only one locale |
81 | if (is_string($locale)) |
82 | return setlocale($category,$locale); |
83 | |
84 | if (! check_php_version(4,3)) { |
85 | $ret=false; |
86 | $index=0; |
87 | while ( ! $ret && $index<count($locale)) { |
88 | $ret=setlocale($category,$locale[$index]); |
89 | $index++; |
90 | } |
91 | } else { |
92 | // php 4.3.0 or better, use entire array |
93 | $ret=setlocale($category,$locale); |
94 | } |
95 | return $ret; |
96 | } |
97 | |
d6c32258 |
98 | /** |
51468260 |
99 | * Converts string from given charset to charset, that can be displayed by user translation. |
100 | * |
101 | * Function by default returns html encoded strings, if translation uses different encoding. |
102 | * If Japanese translation is used - function returns string converted to euc-jp |
103 | * If iconv or recode functions are enabled and translation uses utf-8 - function returns utf-8 encoded string. |
104 | * If $charset is not supported - function returns unconverted string. |
62f7daa5 |
105 | * |
51468260 |
106 | * sanitizing of html tags is also done by this function. |
107 | * |
d6c32258 |
108 | * @param string $charset |
109 | * @param string $string Text to be decoded |
f8a1ed5a |
110 | * @param boolean $force_decode converts string to html without $charset!=$default_charset check. |
480feeac |
111 | * Argument is available since 1.5.1 and 1.4.5. |
b6c52e61 |
112 | * @param boolean $save_html disables htmlspecialchars() in order to preserve |
113 | * html formating. Use with care. Available since 1.5.1 |
51468260 |
114 | * @return string decoded string |
d6c32258 |
115 | */ |
b6c52e61 |
116 | function charset_decode ($charset, $string, $force_decode=false, $save_html=false) { |
3ec81e63 |
117 | global $languages, $squirrelmail_language, $default_charset; |
f03f6ee7 |
118 | global $use_php_recode, $use_php_iconv, $aggressive_decoding; |
a2a7852b |
119 | |
3714db45 |
120 | if (isset($languages[$squirrelmail_language]['XTRA_CODE']) && |
1bb86586 |
121 | function_exists($languages[$squirrelmail_language]['XTRA_CODE'] . '_decode')) { |
122 | $string = call_user_func($languages[$squirrelmail_language]['XTRA_CODE'] . '_decode', $string); |
6fbd125b |
123 | } |
b05c8961 |
124 | |
3ec81e63 |
125 | $charset = strtolower($charset); |
126 | |
127 | set_my_charset(); |
128 | |
129 | // Variables that allow to use functions without function_exist() calls |
edf2c0ba |
130 | if (! isset($use_php_recode) || $use_php_recode=="" ) { |
3b84e1b1 |
131 | $use_php_recode=false; } |
edf2c0ba |
132 | if (! isset($use_php_iconv) || $use_php_iconv=="" ) { |
3b84e1b1 |
133 | $use_php_iconv=false; } |
3ec81e63 |
134 | |
135 | // Don't do conversion if charset is the same. |
5341ce66 |
136 | if ( ! $force_decode && $charset == strtolower($default_charset) ) |
4a46b538 |
137 | return ($save_html ? $string : htmlspecialchars($string)); |
3ec81e63 |
138 | |
139 | // catch iso-8859-8-i thing |
140 | if ( $charset == "iso-8859-8-i" ) |
3b84e1b1 |
141 | $charset = "iso-8859-8"; |
3ec81e63 |
142 | |
143 | /* |
62f7daa5 |
144 | * Recode converts html special characters automatically if you use |
145 | * 'charset..html' decoding. There is no documented way to put -d option |
3ec81e63 |
146 | * into php recode function call. |
147 | */ |
148 | if ( $use_php_recode ) { |
3b84e1b1 |
149 | if ( $default_charset == "utf-8" ) { |
150 | // other charsets can be converted to utf-8 without loss. |
151 | // and output string is smaller |
152 | $string = recode_string($charset . "..utf-8",$string); |
4a46b538 |
153 | return ($save_html ? $string : htmlspecialchars($string)); |
3b84e1b1 |
154 | } else { |
155 | $string = recode_string($charset . "..html",$string); |
156 | // recode does not convert single quote, htmlspecialchars does. |
157 | $string = str_replace("'", ''', $string); |
b6c52e61 |
158 | // undo html specialchars |
159 | if ($save_html) |
160 | $string=str_replace(array('&','"','<','>'), |
161 | array('&','"','<','>'),$string); |
3b84e1b1 |
162 | return $string; |
163 | } |
3ec81e63 |
164 | } |
165 | |
166 | // iconv functions does not have html target and can be used only with utf-8 |
167 | if ( $use_php_iconv && $default_charset=='utf-8') { |
3b84e1b1 |
168 | $string = iconv($charset,$default_charset,$string); |
4a46b538 |
169 | return ($save_html ? $string : htmlspecialchars($string)); |
3ec81e63 |
170 | } |
171 | |
172 | // If we don't use recode and iconv, we'll do it old way. |
173 | |
a2a7852b |
174 | /* All HTML special characters are 7 bit and can be replaced first */ |
b6c52e61 |
175 | if (! $save_html) $string = htmlspecialchars ($string); |
a2a7852b |
176 | |
5dd23dac |
177 | /* controls cpu and memory intensive decoding cycles */ |
f03f6ee7 |
178 | if (! isset($aggressive_decoding) || $aggressive_decoding=="" ) { |
3b84e1b1 |
179 | $aggressive_decoding=false; } |
5dd23dac |
180 | |
b142de74 |
181 | $decode=fixcharset($charset); |
182 | $decodefile=SM_PATH . 'functions/decode/' . $decode . '.php'; |
183 | if (file_exists($decodefile)) { |
3b84e1b1 |
184 | include_once($decodefile); |
b6c52e61 |
185 | // send $save_html argument to decoding function. needed for iso-2022-xx decoding. |
186 | $ret = call_user_func('charset_decode_'.$decode, $string, $save_html); |
a2a7852b |
187 | } else { |
3b84e1b1 |
188 | $ret = $string; |
a2a7852b |
189 | } |
190 | return( $ret ); |
191 | } |
03db90bc |
192 | |
d3bab52e |
193 | /** |
194 | * Converts html string to given charset |
480feeac |
195 | * @since 1.5.1 and 1.4.4 |
d3bab52e |
196 | * @param string $string |
197 | * @param string $charset |
78be8403 |
198 | * @param boolean $htmlencode keep htmlspecialchars encoding |
62f7daa5 |
199 | * @param string |
d3bab52e |
200 | */ |
78be8403 |
201 | function charset_encode($string,$charset,$htmlencode=true) { |
3b84e1b1 |
202 | global $default_charset; |
203 | |
3b84e1b1 |
204 | $encode=fixcharset($charset); |
205 | $encodefile=SM_PATH . 'functions/encode/' . $encode . '.php'; |
206 | if (file_exists($encodefile)) { |
207 | include_once($encodefile); |
208 | $ret = call_user_func('charset_encode_'.$encode, $string); |
9280dd9d |
209 | } elseif(file_exists(SM_PATH . 'functions/encode/us_ascii.php')) { |
210 | // function replaces all 8bit html entities with question marks. |
211 | // it is used when other encoding functions are unavailable |
3b84e1b1 |
212 | include_once(SM_PATH . 'functions/encode/us_ascii.php'); |
213 | $ret = charset_encode_us_ascii($string); |
9280dd9d |
214 | } else { |
215 | /** |
216 | * fix for yahoo users that remove all us-ascii related things |
217 | */ |
218 | $ret = $string; |
3b84e1b1 |
219 | } |
039fee57 |
220 | |
221 | /** |
222 | * Undo html special chars, some places (like compose form) have |
223 | * own sanitizing functions and don't need html symbols. |
224 | * Undo chars only after encoding in order to prevent conversion of |
225 | * html entities in plain text emails. |
226 | */ |
227 | if (! $htmlencode ) { |
228 | $ret = str_replace(array('&','>','<','"'),array('&','>','<','"'),$ret); |
229 | } |
3b84e1b1 |
230 | return( $ret ); |
d3bab52e |
231 | } |
232 | |
233 | /** |
234 | * Combined decoding and encoding functions |
235 | * |
236 | * If conversion is done to charset different that utf-8, unsupported symbols |
237 | * will be replaced with question marks. |
480feeac |
238 | * @since 1.5.1 and 1.4.4 |
d3bab52e |
239 | * @param string $in_charset initial charset |
240 | * @param string $string string that has to be converted |
241 | * @param string $out_charset final charset |
78be8403 |
242 | * @param boolean $htmlencode keep htmlspecialchars encoding |
d3bab52e |
243 | * @return string converted string |
244 | */ |
78be8403 |
245 | function charset_convert($in_charset,$string,$out_charset,$htmlencode=true) { |
5341ce66 |
246 | $string=charset_decode($in_charset,$string,true); |
56499061 |
247 | $string=sqi18n_convert_entities($string); |
33991968 |
248 | $string=charset_encode($string,$out_charset,$htmlencode); |
249 | return $string; |
d3bab52e |
250 | } |
251 | |
b142de74 |
252 | /** |
253 | * Makes charset name suitable for decoding cycles |
254 | * |
480feeac |
255 | * @since 1.5.0 and 1.4.4 |
b142de74 |
256 | * @param string $charset Name of charset |
257 | * @return string $charset Adjusted name of charset |
258 | */ |
259 | function fixcharset($charset) { |
91e0dccc |
260 | /* remove minus and characters that might be used in paths from charset |
dbebf058 |
261 | * name in order to be able to use it in function names and include calls. |
262 | */ |
263 | $charset=preg_replace("/[-:.\/\\\]/",'_',$charset); |
62f7daa5 |
264 | |
c5c521a9 |
265 | // OE ks_c_5601_1987 > cp949 |
266 | $charset=str_replace('ks_c_5601_1987','cp949',$charset); |
267 | // Moz x-euc-tw > euc-tw |
268 | $charset=str_replace('x_euc','euc',$charset); |
269 | // Moz x-windows-949 > cp949 |
270 | $charset=str_replace('x_windows_','cp',$charset); |
271 | |
b142de74 |
272 | // windows-125x and cp125x charsets |
273 | $charset=str_replace('windows_','cp',$charset); |
a2a7852b |
274 | |
b142de74 |
275 | // ibm > cp |
276 | $charset=str_replace('ibm','cp',$charset); |
277 | |
278 | // iso-8859-8-i -> iso-8859-8 |
279 | // use same cycle until I'll find differences |
280 | $charset=str_replace('iso_8859_8_i','iso_8859_8',$charset); |
281 | |
282 | return $charset; |
283 | } |
a2a7852b |
284 | |
51468260 |
285 | /** |
a2a7852b |
286 | * Set up the language to be output |
287 | * if $do_search is true, then scan the browser information |
288 | * for a possible language that we know |
51468260 |
289 | * |
62f7daa5 |
290 | * Function sets system locale environment (LC_ALL, LANG, LANGUAGE), |
51468260 |
291 | * gettext translation bindings and html header information. |
292 | * |
5679405c |
293 | * Function returns error codes, if there is some fatal error. |
62f7daa5 |
294 | * 0 = no error, |
295 | * 1 = mbstring support is not present, |
51468260 |
296 | * 2 = mbstring support is not present, user's translation reverted to en_US. |
297 | * |
298 | * @param string $sm_language translation used by user's interface |
299 | * @param bool $do_search use browser's preferred language detection functions. Defaults to false. |
300 | * @param bool $default set $sm_language to $squirrelmail_default_language if language detection fails or language is not set. Defaults to false. |
62f7daa5 |
301 | * @return int function execution error codes. |
a2a7852b |
302 | */ |
67a8c90a |
303 | function set_up_language($sm_language, $do_search = false, $default = false) { |
a2a7852b |
304 | |
305 | static $SetupAlready = 0; |
9eb0fbd4 |
306 | global $use_gettext, $languages, |
fe48c808 |
307 | $squirrelmail_language, $squirrelmail_default_language, $default_charset, |
51468260 |
308 | $sm_notAlias, $username, $data_dir; |
a2a7852b |
309 | |
310 | if ($SetupAlready) { |
311 | return; |
312 | } |
a65846a7 |
313 | |
5c920668 |
314 | $SetupAlready = TRUE; |
961ca3d8 |
315 | sqgetGlobalVar('HTTP_ACCEPT_LANGUAGE', $accept_lang, SQ_SERVER); |
a2a7852b |
316 | |
0d7a48b0 |
317 | /** |
318 | * If function is asked to detect preferred language |
319 | * OR squirrelmail default language is set to empty string |
320 | * AND |
f8a1ed5a |
321 | * squirrelmail language ($sm_language) is empty string |
0d7a48b0 |
322 | * (not set in user's prefs and no cookie with language info) |
323 | * AND |
324 | * browser provides list of preferred languages |
325 | * THEN |
326 | * get preferred language from HTTP_ACCEPT_LANGUAGE header |
327 | */ |
f8a1ed5a |
328 | if (($do_search || empty($squirrelmail_default_language)) && |
329 | ! $sm_language && |
0d7a48b0 |
330 | isset($accept_lang)) { |
331 | // TODO: use more than one language, if first language is not available |
332 | // FIXME: function assumes that string contains two or more characters. |
333 | // FIXME: some languages use 5 chars |
961ca3d8 |
334 | $sm_language = substr($accept_lang, 0, 2); |
a2a7852b |
335 | } |
62f7daa5 |
336 | |
0d7a48b0 |
337 | /** |
338 | * If language preference is not set OR script asks to use default language |
339 | * AND |
340 | * default squirrelmail language is not set to empty string |
341 | * THEN |
342 | * use default squirrelmail language value from configuration. |
343 | */ |
f8a1ed5a |
344 | if ((!$sm_language||$default) && |
0d7a48b0 |
345 | ! empty($squirrelmail_default_language)) { |
a2a7852b |
346 | $squirrelmail_language = $squirrelmail_default_language; |
66d7950f |
347 | $sm_language = $squirrelmail_default_language; |
a2a7852b |
348 | } |
7be4d717 |
349 | |
350 | /** provide failsafe language when detection fails */ |
351 | if (! $sm_language) $sm_language='en_US'; |
352 | |
a2a7852b |
353 | $sm_notAlias = $sm_language; |
62f7daa5 |
354 | |
3ec81e63 |
355 | // Catching removed translation |
356 | // System reverts to English translation if user prefs contain translation |
2ba706ef |
357 | // that is not available in $languages array |
3ec81e63 |
358 | if (!isset($languages[$sm_notAlias])) { |
3b84e1b1 |
359 | $sm_notAlias="en_US"; |
3ec81e63 |
360 | } |
361 | |
a2a7852b |
362 | while (isset($languages[$sm_notAlias]['ALIAS'])) { |
363 | $sm_notAlias = $languages[$sm_notAlias]['ALIAS']; |
364 | } |
365 | |
88cb1b4d |
366 | if ( isset($sm_language) && |
5c920668 |
367 | $use_gettext && |
368 | $sm_language != '' && |
369 | isset($languages[$sm_notAlias]['CHARSET']) ) { |
3b84e1b1 |
370 | sq_bindtextdomain( 'squirrelmail', SM_PATH . 'locale/' ); |
371 | sq_textdomain( 'squirrelmail' ); |
1989cc04 |
372 | |
373 | // set codeset in order to avoid gettext charset conversions |
03db90bc |
374 | if (function_exists('bind_textdomain_codeset')) { |
1989cc04 |
375 | // Japanese translation uses different internal charset |
3b84e1b1 |
376 | if ($sm_notAlias == 'ja_JP') { |
598294a7 |
377 | bind_textdomain_codeset ('squirrelmail', 'EUC-JP'); |
a5970d71 |
378 | } else { |
598294a7 |
379 | bind_textdomain_codeset ('squirrelmail', $languages[$sm_notAlias]['CHARSET'] ); |
03db90bc |
380 | } |
381 | } |
1989cc04 |
382 | |
383 | // Use LOCALE key, if it is set. |
03db90bc |
384 | if (isset($languages[$sm_notAlias]['LOCALE'])){ |
3b84e1b1 |
385 | $longlocale=$languages[$sm_notAlias]['LOCALE']; |
03db90bc |
386 | } else { |
3b84e1b1 |
387 | $longlocale=$sm_notAlias; |
03db90bc |
388 | } |
1989cc04 |
389 | |
390 | // try setting locale |
391 | $retlocale=sq_setlocale(LC_ALL, $longlocale); |
392 | |
393 | // check if locale is set and assign that locale to $longlocale |
394 | // in order to use it in putenv calls. |
395 | if (! is_bool($retlocale)) { |
396 | $longlocale=$retlocale; |
397 | } elseif (is_array($longlocale)) { |
398 | // setting of all locales failed. |
399 | // we need string instead of array used in LOCALE key. |
400 | $longlocale=$sm_notAlias; |
401 | } |
402 | |
5a4689fb |
403 | if ( !((bool)ini_get('safe_mode')) && |
f2374580 |
404 | getenv( 'LC_ALL' ) != $longlocale ) { |
405 | putenv( "LC_ALL=$longlocale" ); |
406 | putenv( "LANG=$longlocale" ); |
407 | putenv( "LANGUAGE=$longlocale" ); |
54b168cf |
408 | putenv( "LC_NUMERIC=C" ); |
475df436 |
409 | if ($sm_notAlias=='tr_TR') putenv( "LC_CTYPE=C" ); |
a2a7852b |
410 | } |
54b168cf |
411 | // Workaround for plugins that use numbers with floating point |
91e0dccc |
412 | // It might be removed if plugins use correct decimal delimiters |
413 | // according to locale settings. |
54b168cf |
414 | setlocale(LC_NUMERIC, 'C'); |
415 | // Workaround for specific Turkish strtolower/strtoupper rules. |
416 | // Many functions expect English conversion rules. |
475df436 |
417 | if ($sm_notAlias=='tr_TR') setlocale(LC_CTYPE,'C'); |
03db90bc |
418 | |
f549a706 |
419 | /** |
420 | * Set text direction/alignment variables |
421 | * When language environment is setup, scripts can use these globals |
422 | * without accessing $languages directly and making checks for optional |
423 | * array key. |
424 | */ |
425 | global $text_direction, $left_align, $right_align; |
62f7daa5 |
426 | if (isset($languages[$sm_notAlias]['DIR']) && |
03db90bc |
427 | $languages[$sm_notAlias]['DIR'] == 'rtl') { |
3b84e1b1 |
428 | /** |
429 | * Text direction |
430 | * @global string $text_direction |
431 | */ |
432 | $text_direction='rtl'; |
433 | /** |
434 | * Left alignment |
435 | * @global string $left_align |
436 | */ |
437 | $left_align='right'; |
438 | /** |
439 | * Right alignment |
440 | * @global string $right_align |
441 | */ |
442 | $right_align='left'; |
03db90bc |
443 | } else { |
3b84e1b1 |
444 | $text_direction='ltr'; |
445 | $left_align='left'; |
446 | $right_align='right'; |
03db90bc |
447 | } |
448 | |
449 | $squirrelmail_language = $sm_notAlias; |
a5970d71 |
450 | if ($squirrelmail_language == 'ja_JP') { |
b05c8961 |
451 | header ('Content-Type: text/html; charset=EUC-JP'); |
452 | if (!function_exists('mb_internal_encoding')) { |
3b84e1b1 |
453 | // Error messages can't be displayed here |
454 | $error = 1; |
455 | // Revert to English if possible. |
456 | if (function_exists('setPref') && $username!='' && $data_dir!="") { |
457 | setPref($data_dir, $username, 'language', "en_US"); |
458 | $error = 2; |
459 | } |
460 | // stop further execution in order not to get php errors on mb_internal_encoding(). |
461 | return $error; |
e842b215 |
462 | } |
463 | if (function_exists('mb_language')) { |
464 | mb_language('Japanese'); |
b05c8961 |
465 | } |
466 | mb_internal_encoding('EUC-JP'); |
467 | mb_http_output('pass'); |
fe48c808 |
468 | } elseif ($squirrelmail_language == 'en_US') { |
469 | header( 'Content-Type: text/html; charset=' . $default_charset ); |
b05c8961 |
470 | } else { |
fe48c808 |
471 | header( 'Content-Type: text/html; charset=' . $languages[$sm_notAlias]['CHARSET'] ); |
472 | } |
f5c507dc |
473 | /** |
474 | * mbstring.func_overload fix (#929644). |
475 | * |
f8a1ed5a |
476 | * php mbstring extension can replace standard string functions with their multibyte |
4c12c858 |
477 | * equivalents. See http://www.php.net/ref.mbstring#mbstring.overload. This feature |
478 | * was added in php v.4.2.0 |
f5c507dc |
479 | * |
480 | * Some SquirrelMail functions work with 8bit strings in bytes. If interface is forced |
481 | * to use mbstring functions and mbstring internal encoding is set to multibyte charset, |
f8a1ed5a |
482 | * interface can't trust regular string functions. Due to mbstring overloading design |
f5c507dc |
483 | * limits php scripts can't control this setting. |
484 | * |
485 | * This hack should fix some issues related to 8bit strings in passwords. Correct fix is |
486 | * to disable mbstring overloading. Japanese translation uses different internal encoding. |
487 | */ |
f8a1ed5a |
488 | if ($squirrelmail_language != 'ja_JP' && |
f5c507dc |
489 | function_exists('mb_internal_encoding') && |
490 | check_php_version(4,2,0) && |
491 | (int)ini_get('mbstring.func_overload')!=0) { |
fa4cfb07 |
492 | mb_internal_encoding('pass'); |
f5c507dc |
493 | } |
a2a7852b |
494 | } |
51468260 |
495 | return 0; |
b05c8961 |
496 | } |
a2a7852b |
497 | |
51468260 |
498 | /** |
499 | * Sets default_charset variable according to the one that is used by user's translations. |
500 | * |
501 | * Function changes global $default_charset variable in order to be sure, that it |
0d7a48b0 |
502 | * contains charset used by user's translation. Sanity of $squirrelmail_language |
503 | * and $default_charset combination is also tested. |
51468260 |
504 | * |
505 | * There can be a $default_charset setting in the |
506 | * config.php file, but the user may have a different language |
507 | * selected for a user interface. This function checks the |
508 | * language selected by the user and tags the outgoing messages |
509 | * with the appropriate charset corresponding to the language |
510 | * selection. This is "more right" (tm), than just stamping the |
511 | * message blindly with the system-wide $default_charset. |
512 | */ |
a2a7852b |
513 | function set_my_charset(){ |
0d7a48b0 |
514 | global $data_dir, $username, $default_charset, $languages, $squirrelmail_language; |
88cb1b4d |
515 | |
a2a7852b |
516 | $my_language = getPref($data_dir, $username, 'language'); |
5c920668 |
517 | if (!$my_language) { |
0d7a48b0 |
518 | $my_language = $squirrelmail_language ; |
5c920668 |
519 | } |
3ec81e63 |
520 | // Catch removed translation |
521 | if (!isset($languages[$my_language])) { |
3b84e1b1 |
522 | $my_language="en_US"; |
3ec81e63 |
523 | } |
a2a7852b |
524 | while (isset($languages[$my_language]['ALIAS'])) { |
f7e8861e |
525 | $my_language = $languages[$my_language]['ALIAS']; |
a2a7852b |
526 | } |
5c920668 |
527 | $my_charset = $languages[$my_language]['CHARSET']; |
fe48c808 |
528 | if ($my_language!='en_US') { |
a2a7852b |
529 | $default_charset = $my_charset; |
530 | } |
531 | } |
532 | |
e0e1b169 |
533 | /** |
534 | * Replaces non-braking spaces inserted by some browsers with regular space |
535 | * |
536 | * This function can be used to replace non-braking space symbols |
537 | * that are inserted in forms by some browsers instead of normal |
538 | * space symbol. |
539 | * |
540 | * @param string $string Text that needs to be cleaned |
541 | * @param string $charset Charset used in text |
542 | * @return string Cleaned text |
543 | */ |
544 | function cleanup_nbsp($string,$charset) { |
a8fa8e33 |
545 | |
e0e1b169 |
546 | // reduce number of case statements |
547 | if (stristr('iso-8859-',substr($charset,0,9))){ |
548 | $output_charset="iso-8859-x"; |
549 | } |
550 | if (stristr('windows-125',substr($charset,0,11))){ |
551 | $output_charset="cp125x"; |
552 | } |
553 | if (stristr('koi8',substr($charset,0,4))){ |
554 | $output_charset="koi8-x"; |
555 | } |
556 | if (! isset($output_charset)){ |
557 | $output_charset=strtolower($charset); |
558 | } |
a8fa8e33 |
559 | |
e0e1b169 |
560 | // where is non-braking space symbol |
561 | switch($output_charset): |
562 | case "iso-8859-x": |
563 | case "cp125x": |
564 | case "iso-2022-jp": |
565 | $nbsp="\xA0"; |
566 | break; |
567 | case "koi8-x": |
568 | $nbsp="\x9A"; |
569 | break; |
570 | case "utf-8": |
571 | $nbsp="\xC2\xA0"; |
572 | break; |
573 | default: |
574 | // don't change string if charset is unmatched |
575 | return $string; |
576 | endswitch; |
a8fa8e33 |
577 | |
e0e1b169 |
578 | // return space instead of non-braking space. |
579 | return str_replace($nbsp,' ',$string); |
580 | } |
a8fa8e33 |
581 | |
e0e1b169 |
582 | /** |
583 | * Function informs if it is safe to convert given charset to the one that is used by user. |
584 | * |
585 | * It is safe to use conversion only if user uses utf-8 encoding and when |
586 | * converted charset is similar to the one that is used by user. |
587 | * |
588 | * @param string $input_charset Charset of text that needs to be converted |
589 | * @return bool is it possible to convert to user's charset |
590 | */ |
591 | function is_conversion_safe($input_charset) { |
56499061 |
592 | global $languages, $sm_notAlias, $default_charset, $lossy_encoding; |
a8fa8e33 |
593 | |
e0e1b169 |
594 | if (isset($lossy_encoding) && $lossy_encoding ) |
91e0dccc |
595 | return true; |
a8fa8e33 |
596 | |
56499061 |
597 | // convert to lower case |
598 | $input_charset = strtolower($input_charset); |
a8fa8e33 |
599 | |
56499061 |
600 | // Is user's locale Unicode based ? |
601 | if ( $default_charset == "utf-8" ) { |
e0e1b169 |
602 | return true; |
56499061 |
603 | } |
604 | |
605 | // Charsets that are similar |
606 | switch ($default_charset) { |
607 | case "windows-1251": |
608 | if ( $input_charset == "iso-8859-5" || |
609 | $input_charset == "koi8-r" || |
610 | $input_charset == "koi8-u" ) { |
611 | return true; |
612 | } else { |
613 | return false; |
614 | } |
615 | case "windows-1257": |
616 | if ( $input_charset == "iso-8859-13" || |
617 | $input_charset == "iso-8859-4" ) { |
618 | return true; |
619 | } else { |
620 | return false; |
621 | } |
622 | case "iso-8859-4": |
623 | if ( $input_charset == "iso-8859-13" || |
624 | $input_charset == "windows-1257" ) { |
625 | return true; |
626 | } else { |
627 | return false; |
628 | } |
629 | case "iso-8859-5": |
630 | if ( $input_charset == "windows-1251" || |
631 | $input_charset == "koi8-r" || |
632 | $input_charset == "koi8-u" ) { |
633 | return true; |
634 | } else { |
635 | return false; |
636 | } |
637 | case "iso-8859-13": |
638 | if ( $input_charset == "iso-8859-4" || |
639 | $input_charset == "windows-1257" ) { |
640 | return true; |
641 | } else { |
642 | return false; |
643 | } |
644 | case "koi8-r": |
645 | if ( $input_charset == "windows-1251" || |
646 | $input_charset == "iso-8859-5" || |
647 | $input_charset == "koi8-u" ) { |
648 | return true; |
649 | } else { |
650 | return false; |
651 | } |
652 | case "koi8-u": |
653 | if ( $input_charset == "windows-1251" || |
654 | $input_charset == "iso-8859-5" || |
655 | $input_charset == "koi8-r" ) { |
656 | return true; |
657 | } else { |
658 | return false; |
659 | } |
660 | default: |
e0e1b169 |
661 | return false; |
56499061 |
662 | } |
e0e1b169 |
663 | } |
551a09c7 |
664 | |
56499061 |
665 | /** |
666 | * Converts html character entities to numeric entities |
667 | * |
668 | * SquirrelMail encoding functions work only with numeric entities. |
669 | * This function fixes issues with decoding functions that might convert |
670 | * some symbols to character entities. Issue is specific to PHP recode |
671 | * extension decoding. Function is used internally in charset_convert() |
672 | * function. |
673 | * @param string $str string that might contain html character entities |
674 | * @return string string with character entities converted to decimals. |
675 | * @since 1.5.2 |
676 | */ |
677 | function sqi18n_convert_entities($str) { |
678 | |
679 | $entities = array( |
680 | // Latin 1 |
681 | ' ' => ' ', |
682 | '¡' => '¡', |
683 | '¢' => '¢', |
684 | '£' => '£', |
685 | '¤' => '¤', |
686 | '¥' => '¥', |
687 | '¦' => '¦', |
688 | '§' => '§', |
689 | '¨' => '¨', |
690 | '©' => '©', |
691 | 'ª' => 'ª', |
692 | '«' => '«', |
693 | '¬' => '¬', |
694 | '­' => '­', |
695 | '®' => '®', |
696 | '¯' => '¯', |
697 | '°' => '°', |
698 | '±' => '±', |
699 | '²' => '²', |
700 | '³' => '³', |
701 | '´' => '´', |
702 | 'µ' => 'µ', |
703 | '¶' => '¶', |
704 | '·' => '·', |
705 | '¸' => '¸', |
706 | '¹' => '¹', |
707 | 'º' => 'º', |
708 | '»' => '»', |
709 | '¼' => '¼', |
710 | '½' => '½', |
711 | '¾' => '¾', |
712 | '¿' => '¿', |
713 | 'À' => 'À', |
714 | 'Á' => 'Á', |
715 | 'Â' => 'Â', |
716 | 'Ã' => 'Ã', |
717 | 'Ä' => 'Ä', |
718 | 'Å' => 'Å', |
719 | 'Æ' => 'Æ', |
720 | 'Ç' => 'Ç', |
721 | 'È' => 'È', |
722 | 'É' => 'É', |
723 | 'Ê' => 'Ê', |
724 | 'Ë' => 'Ë', |
725 | 'Ì' => 'Ì', |
726 | 'Í' => 'Í', |
727 | 'Î' => 'Î', |
728 | 'Ï' => 'Ï', |
729 | 'Ð' => 'Ð', |
730 | 'Ñ' => 'Ñ', |
731 | 'Ò' => 'Ò', |
732 | 'Ó' => 'Ó', |
733 | 'Ô' => 'Ô', |
734 | 'Õ' => 'Õ', |
735 | 'Ö' => 'Ö', |
736 | '×' => '×', |
737 | 'Ø' => 'Ø', |
738 | 'Ù' => 'Ù', |
739 | 'Ú' => 'Ú', |
740 | 'Û' => 'Û', |
741 | 'Ü' => 'Ü', |
742 | 'Ý' => 'Ý', |
743 | 'Þ' => 'Þ', |
744 | 'ß' => 'ß', |
745 | 'à' => 'à', |
746 | 'á' => 'á', |
747 | 'â' => 'â', |
748 | 'ã' => 'ã', |
749 | 'ä' => 'ä', |
750 | 'å' => 'å', |
751 | 'æ' => 'æ', |
752 | 'ç' => 'ç', |
753 | 'è' => 'è', |
754 | 'é' => 'é', |
755 | 'ê' => 'ê', |
756 | 'ë' => 'ë', |
757 | 'ì' => 'ì', |
758 | 'í' => 'í', |
759 | 'î' => 'î', |
760 | 'ï' => 'ï', |
761 | 'ð' => 'ð', |
762 | 'ñ' => 'ñ', |
763 | 'ò' => 'ò', |
764 | 'ó' => 'ó', |
765 | 'ô' => 'ô', |
766 | 'õ' => 'õ', |
767 | 'ö' => 'ö', |
768 | '÷' => '÷', |
769 | 'ø' => 'ø', |
770 | 'ù' => 'ù', |
771 | 'ú' => 'ú', |
772 | 'û' => 'û', |
773 | 'ü' => 'ü', |
774 | 'ý' => 'ý', |
775 | 'þ' => 'þ', |
776 | 'ÿ' => 'ÿ', |
777 | // Latin Extended-A |
778 | 'Œ' => 'Œ', |
779 | 'œ' => 'œ', |
780 | 'Š' => 'Š', |
781 | 'š' => 'š', |
782 | 'Ÿ' => 'Ÿ', |
783 | // Spacing Modifier Letters |
784 | 'ˆ' => 'ˆ', |
785 | '˜' => '˜', |
786 | // General Punctuation |
787 | ' ' => ' ', |
788 | ' ' => ' ', |
789 | ' ' => ' ', |
790 | '‌' => '‌', |
791 | '‍' => '‍', |
792 | '‎' => '‎', |
793 | '‏' => '‏', |
794 | '–' => '–', |
795 | '—' => '—', |
796 | '‘' => '‘', |
797 | '’' => '’', |
798 | '‚' => '‚', |
799 | '“' => '“', |
800 | '”' => '”', |
801 | '„' => '„', |
802 | '†' => '†', |
803 | '‡' => '‡', |
804 | '‰' => '‰', |
805 | '‹' => '‹', |
806 | '›' => '›', |
807 | '€' => '€', |
808 | // Latin Extended-B |
809 | 'ƒ' => 'ƒ', |
810 | // Greek |
811 | 'Α' => 'Α', |
812 | 'Β' => 'Β', |
813 | 'Γ' => 'Γ', |
814 | 'Δ' => 'Δ', |
815 | 'Ε' => 'Ε', |
816 | 'Ζ' => 'Ζ', |
817 | 'Η' => 'Η', |
818 | 'Θ' => 'Θ', |
819 | 'Ι' => 'Ι', |
820 | 'Κ' => 'Κ', |
821 | 'Λ' => 'Λ', |
822 | 'Μ' => 'Μ', |
823 | 'Ν' => 'Ν', |
824 | 'Ξ' => 'Ξ', |
825 | 'Ο' => 'Ο', |
826 | 'Π' => 'Π', |
827 | 'Ρ' => 'Ρ', |
828 | 'Σ' => 'Σ', |
829 | 'Τ' => 'Τ', |
830 | 'Υ' => 'Υ', |
831 | 'Φ' => 'Φ', |
832 | 'Χ' => 'Χ', |
833 | 'Ψ' => 'Ψ', |
834 | 'Ω' => 'Ω', |
835 | 'α' => 'α', |
836 | 'β' => 'β', |
837 | 'γ' => 'γ', |
838 | 'δ' => 'δ', |
839 | 'ε' => 'ε', |
840 | 'ζ' => 'ζ', |
841 | 'η' => 'η', |
842 | 'θ' => 'θ', |
843 | 'ι' => 'ι', |
844 | 'κ' => 'κ', |
845 | 'λ' => 'λ', |
846 | 'μ' => 'μ', |
847 | 'ν' => 'ν', |
848 | 'ξ' => 'ξ', |
849 | 'ο' => 'ο', |
850 | 'π' => 'π', |
851 | 'ρ' => 'ρ', |
852 | 'ς' => 'ς', |
853 | 'σ' => 'σ', |
854 | 'τ' => 'τ', |
855 | 'υ' => 'υ', |
856 | 'φ' => 'φ', |
857 | 'χ' => 'χ', |
858 | 'ψ' => 'ψ', |
859 | 'ω' => 'ω', |
860 | 'ϑ' => 'ϑ', |
861 | 'ϒ' => 'ϒ', |
862 | 'ϖ' => 'ϖ', |
863 | // General Punctuation |
864 | '•' => '•', |
865 | '…' => '…', |
866 | '′' => '′', |
867 | '″' => '″', |
868 | '‾' => '‾', |
869 | '⁄' => '⁄', |
870 | // Letterlike Symbols |
871 | '℘' => '℘', |
872 | 'ℑ' => 'ℑ', |
873 | 'ℜ' => 'ℜ', |
874 | '™' => '™', |
875 | 'ℵ' => 'ℵ', |
876 | // Arrows |
877 | '←' => '←', |
878 | '↑' => '↑', |
879 | '→' => '→', |
880 | '↓' => '↓', |
881 | '↔' => '↔', |
882 | '↵' => '↵', |
883 | '⇐' => '⇐', |
884 | '⇑' => '⇑', |
885 | '⇒' => '⇒', |
886 | '⇓' => '⇓', |
887 | '⇔' => '⇔', |
888 | // Mathematical Operators |
889 | '∀' => '∀', |
890 | '∂' => '∂', |
891 | '∃' => '∃', |
892 | '∅' => '∅', |
893 | '∇' => '∇', |
894 | '∈' => '∈', |
895 | '∉' => '∉', |
896 | '∋' => '∋', |
897 | '∏' => '∏', |
898 | '∑' => '∑', |
899 | '−' => '−', |
900 | '∗' => '∗', |
901 | '√' => '√', |
902 | '∝' => '∝', |
903 | '∞' => '∞', |
904 | '∠' => '∠', |
905 | '∧' => '∧', |
906 | '∨' => '∨', |
907 | '∩' => '∩', |
908 | '∪' => '∪', |
909 | '∫' => '∫', |
910 | '∴' => '∴', |
911 | '∼' => '∼', |
912 | '≅' => '≅', |
913 | '≈' => '≈', |
914 | '≠' => '≠', |
915 | '≡' => '≡', |
916 | '≤' => '≤', |
917 | '≥' => '≥', |
918 | '⊂' => '⊂', |
919 | '⊃' => '⊃', |
920 | '⊄' => '⊄', |
921 | '⊆' => '⊆', |
922 | '⊇' => '⊇', |
923 | '⊕' => '⊕', |
924 | '⊗' => '⊗', |
925 | '⊥' => '⊥', |
926 | '⋅' => '⋅', |
927 | // Miscellaneous Technical |
928 | '⌈' => '⌈', |
929 | '⌉' => '⌉', |
930 | '⌊' => '⌊', |
931 | '⌋' => '⌋', |
932 | '⟨' => '〈', |
933 | '⟩' => '〉', |
934 | // Geometric Shapes |
935 | '◊' => '◊', |
936 | // Miscellaneous Symbols |
937 | '♠' => '♠', |
938 | '♣' => '♣', |
939 | '♥' => '♥', |
940 | '♦' => '♦'); |
941 | |
942 | $str = str_replace(array_keys($entities), array_values($entities), $str); |
943 | |
944 | return $str; |
945 | } |
a8fa8e33 |
946 | |
e0e1b169 |
947 | /* ------------------------------ main --------------------------- */ |
a8fa8e33 |
948 | |
e0e1b169 |
949 | global $squirrelmail_language, $languages, $use_gettext; |
060c9483 |
950 | |
0d7a48b0 |
951 | if (! sqgetGlobalVar('squirrelmail_language',$squirrelmail_language,SQ_COOKIE)) { |
e0e1b169 |
952 | $squirrelmail_language = ''; |
953 | } |
c30be3cf |
954 | |
e0e1b169 |
955 | /** |
956 | * Array specifies the available translations. |
957 | * |
958 | * Structure of array: |
959 | * $languages['language']['variable'] = 'value' |
960 | * |
961 | * Possible 'variable' names: |
962 | * NAME - Translation name in English |
963 | * CHARSET - Encoding used by translation |
964 | * ALIAS - used when 'language' is only short name and 'value' should provide long language name |
965 | * ALTNAME - Native translation name. Any 8bit symbols must be html encoded. |
c6cd3136 |
966 | * LOCALE - Full locale name (in xx_XX.charset format). It can use array with more than one locale name since 1.4.5 and 1.5.1 |
e0e1b169 |
967 | * DIR - Text direction. Used to define Right-to-Left languages. Possible values 'rtl' or 'ltr'. If undefined - defaults to 'ltr' |
968 | * XTRA_CODE - translation uses special functions. See doc/i18n.txt |
969 | * |
970 | * Each 'language' definition requires NAME+CHARSET or ALIAS variables. |
971 | * |
972 | * @name $languages |
973 | * @global array $languages |
974 | */ |
e0e1b169 |
975 | $languages['en_US']['NAME'] = 'English'; |
976 | $languages['en_US']['CHARSET'] = 'iso-8859-1'; |
977 | $languages['en_US']['LOCALE'] = 'en_US.ISO8859-1'; |
978 | $languages['en']['ALIAS'] = 'en_US'; |
a2a7852b |
979 | |
89b3545c |
980 | /** |
981 | * Automatic translation loading from setup.php files. |
982 | * Solution for bug. 1240889. |
983 | * setup.php file can contain $languages array entries and XTRA_CODE functions. |
89b3545c |
984 | */ |
6c8a387f |
985 | if (is_dir(SM_PATH . 'locale') && |
986 | is_readable(SM_PATH . 'locale')) { |
987 | $localedir = dir(SM_PATH . 'locale'); |
988 | while($lang_dir=$localedir->read()) { |
989 | // remove trailing slash, if present |
990 | if (substr($lang_dir,-1)=='/') { |
991 | $lang_dir = substr($lang_dir,0,-1); |
992 | } |
993 | if ($lang_dir != '..' && $lang_dir != '.' && $lang_dir != 'CVS' && |
994 | is_dir(SM_PATH.'locale/'.$lang_dir) && |
995 | file_exists(SM_PATH.'locale/'.$lang_dir.'/setup.php')) { |
996 | include_once(SM_PATH.'locale/'.$lang_dir.'/setup.php'); |
997 | } |
89b3545c |
998 | } |
6c8a387f |
999 | $localedir->close(); |
89b3545c |
1000 | } |
89b3545c |
1001 | |
e0e1b169 |
1002 | /* Detect whether gettext is installed. */ |
1003 | $gettext_flags = 0; |
1004 | if (function_exists('_')) { |
1005 | $gettext_flags += 1; |
1006 | } |
1007 | if (function_exists('bindtextdomain')) { |
1008 | $gettext_flags += 2; |
1009 | } |
1010 | if (function_exists('textdomain')) { |
1011 | $gettext_flags += 4; |
1012 | } |
1013 | if (function_exists('ngettext')) { |
1014 | $gettext_flags += 8; |
1015 | } |
1016 | |
1017 | /* If gettext is fully loaded, cool */ |
1018 | if ($gettext_flags == 15) { |
1019 | $use_gettext = true; |
1020 | } |
1021 | |
1022 | /* If ngettext support is missing, load it */ |
1023 | elseif ($gettext_flags == 7) { |
1024 | $use_gettext = true; |
1025 | // load internal ngettext functions |
1026 | include_once(SM_PATH . 'class/l10n.class.php'); |
1027 | include_once(SM_PATH . 'functions/ngettext.php'); |
1028 | } |
1029 | |
1030 | /* If we can fake gettext, try that */ |
1031 | elseif ($gettext_flags == 0) { |
1032 | $use_gettext = true; |
1033 | include_once(SM_PATH . 'functions/gettext.php'); |
1034 | } else { |
1035 | /* Uh-ho. A weird install */ |
1036 | if (! $gettext_flags & 1) { |
1037 | /** |
1038 | * Function is used as replacement in broken installs |
1039 | * @ignore |
1040 | */ |
1041 | function _($str) { |
1042 | return $str; |
1043 | } |
1044 | } |
1045 | if (! $gettext_flags & 2) { |
1046 | /** |
1047 | * Function is used as replacement in broken installs |
1048 | * @ignore |
1049 | */ |
1050 | function bindtextdomain() { |
1051 | return; |
1052 | } |
1053 | } |
1054 | if (! $gettext_flags & 4) { |
1055 | /** |
1056 | * Function is used as replacemet in broken installs |
1057 | * @ignore |
1058 | */ |
1059 | function textdomain() { |
1060 | return; |
1061 | } |
1062 | } |
1063 | if (! $gettext_flags & 8) { |
1064 | /** |
1065 | * Function is used as replacemet in broken installs |
1066 | * @ignore |
1067 | */ |
1068 | function ngettext($str,$str2,$number) { |
1069 | if ($number>1) { |
1070 | return $str2; |
1071 | } else { |
1072 | return $str; |
1073 | } |
1074 | } |
1075 | } |
a9a10f57 |
1076 | if (! function_exists('dgettext')) { |
1077 | /** |
1078 | * Replacement for broken setups. |
1079 | * @ignore |
1080 | */ |
1081 | function dgettext($domain,$str) { |
1082 | return $str; |
1083 | } |
1084 | } |
1085 | if (! function_exists('dngettext')) { |
1086 | /** |
1087 | * Replacement for broken setups |
1088 | * @ignore |
1089 | */ |
1090 | function dngettext($domain,$str1,$strn,$number) { |
1091 | return ($number==1 ? $str1 : $strn); |
1092 | } |
1093 | } |
4e519821 |
1094 | } |
51468260 |
1095 | ?> |