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 | |
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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); |
33991968 |
247 | $string=charset_encode($string,$out_charset,$htmlencode); |
248 | return $string; |
d3bab52e |
249 | } |
250 | |
b142de74 |
251 | /** |
252 | * Makes charset name suitable for decoding cycles |
253 | * |
480feeac |
254 | * @since 1.5.0 and 1.4.4 |
b142de74 |
255 | * @param string $charset Name of charset |
256 | * @return string $charset Adjusted name of charset |
257 | */ |
258 | function fixcharset($charset) { |
91e0dccc |
259 | /* remove minus and characters that might be used in paths from charset |
dbebf058 |
260 | * name in order to be able to use it in function names and include calls. |
261 | */ |
262 | $charset=preg_replace("/[-:.\/\\\]/",'_',$charset); |
62f7daa5 |
263 | |
c5c521a9 |
264 | // OE ks_c_5601_1987 > cp949 |
265 | $charset=str_replace('ks_c_5601_1987','cp949',$charset); |
266 | // Moz x-euc-tw > euc-tw |
267 | $charset=str_replace('x_euc','euc',$charset); |
268 | // Moz x-windows-949 > cp949 |
269 | $charset=str_replace('x_windows_','cp',$charset); |
270 | |
b142de74 |
271 | // windows-125x and cp125x charsets |
272 | $charset=str_replace('windows_','cp',$charset); |
a2a7852b |
273 | |
b142de74 |
274 | // ibm > cp |
275 | $charset=str_replace('ibm','cp',$charset); |
276 | |
277 | // iso-8859-8-i -> iso-8859-8 |
278 | // use same cycle until I'll find differences |
279 | $charset=str_replace('iso_8859_8_i','iso_8859_8',$charset); |
280 | |
281 | return $charset; |
282 | } |
a2a7852b |
283 | |
51468260 |
284 | /** |
a2a7852b |
285 | * Set up the language to be output |
286 | * if $do_search is true, then scan the browser information |
287 | * for a possible language that we know |
51468260 |
288 | * |
62f7daa5 |
289 | * Function sets system locale environment (LC_ALL, LANG, LANGUAGE), |
51468260 |
290 | * gettext translation bindings and html header information. |
291 | * |
5679405c |
292 | * Function returns error codes, if there is some fatal error. |
62f7daa5 |
293 | * 0 = no error, |
294 | * 1 = mbstring support is not present, |
51468260 |
295 | * 2 = mbstring support is not present, user's translation reverted to en_US. |
296 | * |
297 | * @param string $sm_language translation used by user's interface |
298 | * @param bool $do_search use browser's preferred language detection functions. Defaults to false. |
299 | * @param bool $default set $sm_language to $squirrelmail_default_language if language detection fails or language is not set. Defaults to false. |
62f7daa5 |
300 | * @return int function execution error codes. |
a2a7852b |
301 | */ |
67a8c90a |
302 | function set_up_language($sm_language, $do_search = false, $default = false) { |
a2a7852b |
303 | |
304 | static $SetupAlready = 0; |
9eb0fbd4 |
305 | global $use_gettext, $languages, |
fe48c808 |
306 | $squirrelmail_language, $squirrelmail_default_language, $default_charset, |
51468260 |
307 | $sm_notAlias, $username, $data_dir; |
a2a7852b |
308 | |
309 | if ($SetupAlready) { |
310 | return; |
311 | } |
a65846a7 |
312 | |
5c920668 |
313 | $SetupAlready = TRUE; |
961ca3d8 |
314 | sqgetGlobalVar('HTTP_ACCEPT_LANGUAGE', $accept_lang, SQ_SERVER); |
a2a7852b |
315 | |
0d7a48b0 |
316 | /** |
317 | * If function is asked to detect preferred language |
318 | * OR squirrelmail default language is set to empty string |
319 | * AND |
f8a1ed5a |
320 | * squirrelmail language ($sm_language) is empty string |
0d7a48b0 |
321 | * (not set in user's prefs and no cookie with language info) |
322 | * AND |
323 | * browser provides list of preferred languages |
324 | * THEN |
325 | * get preferred language from HTTP_ACCEPT_LANGUAGE header |
326 | */ |
f8a1ed5a |
327 | if (($do_search || empty($squirrelmail_default_language)) && |
328 | ! $sm_language && |
0d7a48b0 |
329 | isset($accept_lang)) { |
330 | // TODO: use more than one language, if first language is not available |
331 | // FIXME: function assumes that string contains two or more characters. |
332 | // FIXME: some languages use 5 chars |
961ca3d8 |
333 | $sm_language = substr($accept_lang, 0, 2); |
a2a7852b |
334 | } |
62f7daa5 |
335 | |
0d7a48b0 |
336 | /** |
337 | * If language preference is not set OR script asks to use default language |
338 | * AND |
339 | * default squirrelmail language is not set to empty string |
340 | * THEN |
341 | * use default squirrelmail language value from configuration. |
342 | */ |
f8a1ed5a |
343 | if ((!$sm_language||$default) && |
0d7a48b0 |
344 | ! empty($squirrelmail_default_language)) { |
a2a7852b |
345 | $squirrelmail_language = $squirrelmail_default_language; |
66d7950f |
346 | $sm_language = $squirrelmail_default_language; |
a2a7852b |
347 | } |
7be4d717 |
348 | |
349 | /** provide failsafe language when detection fails */ |
350 | if (! $sm_language) $sm_language='en_US'; |
351 | |
a2a7852b |
352 | $sm_notAlias = $sm_language; |
62f7daa5 |
353 | |
3ec81e63 |
354 | // Catching removed translation |
355 | // System reverts to English translation if user prefs contain translation |
2ba706ef |
356 | // that is not available in $languages array |
3ec81e63 |
357 | if (!isset($languages[$sm_notAlias])) { |
3b84e1b1 |
358 | $sm_notAlias="en_US"; |
3ec81e63 |
359 | } |
360 | |
a2a7852b |
361 | while (isset($languages[$sm_notAlias]['ALIAS'])) { |
362 | $sm_notAlias = $languages[$sm_notAlias]['ALIAS']; |
363 | } |
364 | |
88cb1b4d |
365 | if ( isset($sm_language) && |
5c920668 |
366 | $use_gettext && |
367 | $sm_language != '' && |
368 | isset($languages[$sm_notAlias]['CHARSET']) ) { |
3b84e1b1 |
369 | sq_bindtextdomain( 'squirrelmail', SM_PATH . 'locale/' ); |
370 | sq_textdomain( 'squirrelmail' ); |
1989cc04 |
371 | |
372 | // set codeset in order to avoid gettext charset conversions |
03db90bc |
373 | if (function_exists('bind_textdomain_codeset')) { |
1989cc04 |
374 | // Japanese translation uses different internal charset |
3b84e1b1 |
375 | if ($sm_notAlias == 'ja_JP') { |
598294a7 |
376 | bind_textdomain_codeset ('squirrelmail', 'EUC-JP'); |
a5970d71 |
377 | } else { |
598294a7 |
378 | bind_textdomain_codeset ('squirrelmail', $languages[$sm_notAlias]['CHARSET'] ); |
03db90bc |
379 | } |
380 | } |
1989cc04 |
381 | |
382 | // Use LOCALE key, if it is set. |
03db90bc |
383 | if (isset($languages[$sm_notAlias]['LOCALE'])){ |
3b84e1b1 |
384 | $longlocale=$languages[$sm_notAlias]['LOCALE']; |
03db90bc |
385 | } else { |
3b84e1b1 |
386 | $longlocale=$sm_notAlias; |
03db90bc |
387 | } |
1989cc04 |
388 | |
389 | // try setting locale |
390 | $retlocale=sq_setlocale(LC_ALL, $longlocale); |
391 | |
392 | // check if locale is set and assign that locale to $longlocale |
393 | // in order to use it in putenv calls. |
394 | if (! is_bool($retlocale)) { |
395 | $longlocale=$retlocale; |
396 | } elseif (is_array($longlocale)) { |
397 | // setting of all locales failed. |
398 | // we need string instead of array used in LOCALE key. |
399 | $longlocale=$sm_notAlias; |
400 | } |
401 | |
5a4689fb |
402 | if ( !((bool)ini_get('safe_mode')) && |
f2374580 |
403 | getenv( 'LC_ALL' ) != $longlocale ) { |
404 | putenv( "LC_ALL=$longlocale" ); |
405 | putenv( "LANG=$longlocale" ); |
406 | putenv( "LANGUAGE=$longlocale" ); |
54b168cf |
407 | putenv( "LC_NUMERIC=C" ); |
475df436 |
408 | if ($sm_notAlias=='tr_TR') putenv( "LC_CTYPE=C" ); |
a2a7852b |
409 | } |
54b168cf |
410 | // Workaround for plugins that use numbers with floating point |
91e0dccc |
411 | // It might be removed if plugins use correct decimal delimiters |
412 | // according to locale settings. |
54b168cf |
413 | setlocale(LC_NUMERIC, 'C'); |
414 | // Workaround for specific Turkish strtolower/strtoupper rules. |
415 | // Many functions expect English conversion rules. |
475df436 |
416 | if ($sm_notAlias=='tr_TR') setlocale(LC_CTYPE,'C'); |
03db90bc |
417 | |
f549a706 |
418 | /** |
419 | * Set text direction/alignment variables |
420 | * When language environment is setup, scripts can use these globals |
421 | * without accessing $languages directly and making checks for optional |
422 | * array key. |
423 | */ |
424 | global $text_direction, $left_align, $right_align; |
62f7daa5 |
425 | if (isset($languages[$sm_notAlias]['DIR']) && |
03db90bc |
426 | $languages[$sm_notAlias]['DIR'] == 'rtl') { |
3b84e1b1 |
427 | /** |
428 | * Text direction |
429 | * @global string $text_direction |
430 | */ |
431 | $text_direction='rtl'; |
432 | /** |
433 | * Left alignment |
434 | * @global string $left_align |
435 | */ |
436 | $left_align='right'; |
437 | /** |
438 | * Right alignment |
439 | * @global string $right_align |
440 | */ |
441 | $right_align='left'; |
03db90bc |
442 | } else { |
3b84e1b1 |
443 | $text_direction='ltr'; |
444 | $left_align='left'; |
445 | $right_align='right'; |
03db90bc |
446 | } |
447 | |
448 | $squirrelmail_language = $sm_notAlias; |
a5970d71 |
449 | if ($squirrelmail_language == 'ja_JP') { |
b05c8961 |
450 | header ('Content-Type: text/html; charset=EUC-JP'); |
451 | if (!function_exists('mb_internal_encoding')) { |
3b84e1b1 |
452 | // Error messages can't be displayed here |
453 | $error = 1; |
454 | // Revert to English if possible. |
455 | if (function_exists('setPref') && $username!='' && $data_dir!="") { |
456 | setPref($data_dir, $username, 'language', "en_US"); |
457 | $error = 2; |
458 | } |
459 | // stop further execution in order not to get php errors on mb_internal_encoding(). |
460 | return $error; |
e842b215 |
461 | } |
462 | if (function_exists('mb_language')) { |
463 | mb_language('Japanese'); |
b05c8961 |
464 | } |
465 | mb_internal_encoding('EUC-JP'); |
466 | mb_http_output('pass'); |
fe48c808 |
467 | } elseif ($squirrelmail_language == 'en_US') { |
468 | header( 'Content-Type: text/html; charset=' . $default_charset ); |
b05c8961 |
469 | } else { |
fe48c808 |
470 | header( 'Content-Type: text/html; charset=' . $languages[$sm_notAlias]['CHARSET'] ); |
471 | } |
f5c507dc |
472 | /** |
473 | * mbstring.func_overload fix (#929644). |
474 | * |
f8a1ed5a |
475 | * php mbstring extension can replace standard string functions with their multibyte |
4c12c858 |
476 | * equivalents. See http://www.php.net/ref.mbstring#mbstring.overload. This feature |
477 | * was added in php v.4.2.0 |
f5c507dc |
478 | * |
479 | * Some SquirrelMail functions work with 8bit strings in bytes. If interface is forced |
480 | * to use mbstring functions and mbstring internal encoding is set to multibyte charset, |
f8a1ed5a |
481 | * interface can't trust regular string functions. Due to mbstring overloading design |
f5c507dc |
482 | * limits php scripts can't control this setting. |
483 | * |
484 | * This hack should fix some issues related to 8bit strings in passwords. Correct fix is |
485 | * to disable mbstring overloading. Japanese translation uses different internal encoding. |
486 | */ |
f8a1ed5a |
487 | if ($squirrelmail_language != 'ja_JP' && |
f5c507dc |
488 | function_exists('mb_internal_encoding') && |
489 | check_php_version(4,2,0) && |
490 | (int)ini_get('mbstring.func_overload')!=0) { |
fa4cfb07 |
491 | mb_internal_encoding('pass'); |
f5c507dc |
492 | } |
a2a7852b |
493 | } |
51468260 |
494 | return 0; |
b05c8961 |
495 | } |
a2a7852b |
496 | |
51468260 |
497 | /** |
498 | * Sets default_charset variable according to the one that is used by user's translations. |
499 | * |
500 | * Function changes global $default_charset variable in order to be sure, that it |
0d7a48b0 |
501 | * contains charset used by user's translation. Sanity of $squirrelmail_language |
502 | * and $default_charset combination is also tested. |
51468260 |
503 | * |
504 | * There can be a $default_charset setting in the |
505 | * config.php file, but the user may have a different language |
506 | * selected for a user interface. This function checks the |
507 | * language selected by the user and tags the outgoing messages |
508 | * with the appropriate charset corresponding to the language |
509 | * selection. This is "more right" (tm), than just stamping the |
510 | * message blindly with the system-wide $default_charset. |
511 | */ |
a2a7852b |
512 | function set_my_charset(){ |
0d7a48b0 |
513 | global $data_dir, $username, $default_charset, $languages, $squirrelmail_language; |
88cb1b4d |
514 | |
a2a7852b |
515 | $my_language = getPref($data_dir, $username, 'language'); |
5c920668 |
516 | if (!$my_language) { |
0d7a48b0 |
517 | $my_language = $squirrelmail_language ; |
5c920668 |
518 | } |
3ec81e63 |
519 | // Catch removed translation |
520 | if (!isset($languages[$my_language])) { |
3b84e1b1 |
521 | $my_language="en_US"; |
3ec81e63 |
522 | } |
a2a7852b |
523 | while (isset($languages[$my_language]['ALIAS'])) { |
f7e8861e |
524 | $my_language = $languages[$my_language]['ALIAS']; |
a2a7852b |
525 | } |
5c920668 |
526 | $my_charset = $languages[$my_language]['CHARSET']; |
fe48c808 |
527 | if ($my_language!='en_US') { |
a2a7852b |
528 | $default_charset = $my_charset; |
529 | } |
530 | } |
531 | |
e0e1b169 |
532 | /** |
533 | * Replaces non-braking spaces inserted by some browsers with regular space |
534 | * |
535 | * This function can be used to replace non-braking space symbols |
536 | * that are inserted in forms by some browsers instead of normal |
537 | * space symbol. |
538 | * |
539 | * @param string $string Text that needs to be cleaned |
540 | * @param string $charset Charset used in text |
541 | * @return string Cleaned text |
542 | */ |
543 | function cleanup_nbsp($string,$charset) { |
a8fa8e33 |
544 | |
e0e1b169 |
545 | // reduce number of case statements |
546 | if (stristr('iso-8859-',substr($charset,0,9))){ |
547 | $output_charset="iso-8859-x"; |
548 | } |
549 | if (stristr('windows-125',substr($charset,0,11))){ |
550 | $output_charset="cp125x"; |
551 | } |
552 | if (stristr('koi8',substr($charset,0,4))){ |
553 | $output_charset="koi8-x"; |
554 | } |
555 | if (! isset($output_charset)){ |
556 | $output_charset=strtolower($charset); |
557 | } |
a8fa8e33 |
558 | |
e0e1b169 |
559 | // where is non-braking space symbol |
560 | switch($output_charset): |
561 | case "iso-8859-x": |
562 | case "cp125x": |
563 | case "iso-2022-jp": |
564 | $nbsp="\xA0"; |
565 | break; |
566 | case "koi8-x": |
567 | $nbsp="\x9A"; |
568 | break; |
569 | case "utf-8": |
570 | $nbsp="\xC2\xA0"; |
571 | break; |
572 | default: |
573 | // don't change string if charset is unmatched |
574 | return $string; |
575 | endswitch; |
a8fa8e33 |
576 | |
e0e1b169 |
577 | // return space instead of non-braking space. |
578 | return str_replace($nbsp,' ',$string); |
579 | } |
a8fa8e33 |
580 | |
e0e1b169 |
581 | /** |
582 | * Function informs if it is safe to convert given charset to the one that is used by user. |
583 | * |
584 | * It is safe to use conversion only if user uses utf-8 encoding and when |
585 | * converted charset is similar to the one that is used by user. |
586 | * |
587 | * @param string $input_charset Charset of text that needs to be converted |
588 | * @return bool is it possible to convert to user's charset |
589 | */ |
590 | function is_conversion_safe($input_charset) { |
591 | global $languages, $sm_notAlias, $default_charset, $lossy_encoding; |
a8fa8e33 |
592 | |
e0e1b169 |
593 | if (isset($lossy_encoding) && $lossy_encoding ) |
91e0dccc |
594 | return true; |
a8fa8e33 |
595 | |
e0e1b169 |
596 | // convert to lower case |
597 | $input_charset = strtolower($input_charset); |
a8fa8e33 |
598 | |
e0e1b169 |
599 | // Is user's locale Unicode based ? |
600 | if ( $default_charset == "utf-8" ) { |
601 | return true; |
602 | } |
a8fa8e33 |
603 | |
e0e1b169 |
604 | // Charsets that are similar |
605 | switch ($default_charset): |
606 | case "windows-1251": |
607 | if ( $input_charset == "iso-8859-5" || |
608 | $input_charset == "koi8-r" || |
609 | $input_charset == "koi8-u" ) { |
610 | return true; |
611 | } else { |
612 | return false; |
613 | } |
614 | case "windows-1257": |
615 | if ( $input_charset == "iso-8859-13" || |
616 | $input_charset == "iso-8859-4" ) { |
617 | return true; |
618 | } else { |
619 | return false; |
620 | } |
621 | case "iso-8859-4": |
622 | if ( $input_charset == "iso-8859-13" || |
623 | $input_charset == "windows-1257" ) { |
624 | return true; |
625 | } else { |
626 | return false; |
627 | } |
628 | case "iso-8859-5": |
629 | if ( $input_charset == "windows-1251" || |
630 | $input_charset == "koi8-r" || |
631 | $input_charset == "koi8-u" ) { |
632 | return true; |
633 | } else { |
634 | return false; |
635 | } |
636 | case "iso-8859-13": |
637 | if ( $input_charset == "iso-8859-4" || |
638 | $input_charset == "windows-1257" ) { |
639 | return true; |
640 | } else { |
641 | return false; |
642 | } |
643 | case "koi8-r": |
644 | if ( $input_charset == "windows-1251" || |
645 | $input_charset == "iso-8859-5" || |
646 | $input_charset == "koi8-u" ) { |
647 | return true; |
648 | } else { |
649 | return false; |
650 | } |
651 | case "koi8-u": |
652 | if ( $input_charset == "windows-1251" || |
653 | $input_charset == "iso-8859-5" || |
654 | $input_charset == "koi8-r" ) { |
655 | return true; |
656 | } else { |
657 | return false; |
658 | } |
659 | default: |
660 | return false; |
661 | endswitch; |
662 | } |
551a09c7 |
663 | |
a8fa8e33 |
664 | |
e0e1b169 |
665 | /* ------------------------------ main --------------------------- */ |
a8fa8e33 |
666 | |
e0e1b169 |
667 | global $squirrelmail_language, $languages, $use_gettext; |
060c9483 |
668 | |
0d7a48b0 |
669 | if (! sqgetGlobalVar('squirrelmail_language',$squirrelmail_language,SQ_COOKIE)) { |
e0e1b169 |
670 | $squirrelmail_language = ''; |
671 | } |
c30be3cf |
672 | |
e0e1b169 |
673 | /** |
674 | * Array specifies the available translations. |
675 | * |
676 | * Structure of array: |
677 | * $languages['language']['variable'] = 'value' |
678 | * |
679 | * Possible 'variable' names: |
680 | * NAME - Translation name in English |
681 | * CHARSET - Encoding used by translation |
682 | * ALIAS - used when 'language' is only short name and 'value' should provide long language name |
683 | * ALTNAME - Native translation name. Any 8bit symbols must be html encoded. |
c6cd3136 |
684 | * 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 |
685 | * DIR - Text direction. Used to define Right-to-Left languages. Possible values 'rtl' or 'ltr'. If undefined - defaults to 'ltr' |
686 | * XTRA_CODE - translation uses special functions. See doc/i18n.txt |
687 | * |
688 | * Each 'language' definition requires NAME+CHARSET or ALIAS variables. |
689 | * |
690 | * @name $languages |
691 | * @global array $languages |
692 | */ |
e0e1b169 |
693 | $languages['en_US']['NAME'] = 'English'; |
694 | $languages['en_US']['CHARSET'] = 'iso-8859-1'; |
695 | $languages['en_US']['LOCALE'] = 'en_US.ISO8859-1'; |
696 | $languages['en']['ALIAS'] = 'en_US'; |
a2a7852b |
697 | |
89b3545c |
698 | /** |
699 | * Automatic translation loading from setup.php files. |
700 | * Solution for bug. 1240889. |
701 | * setup.php file can contain $languages array entries and XTRA_CODE functions. |
89b3545c |
702 | */ |
6c8a387f |
703 | if (is_dir(SM_PATH . 'locale') && |
704 | is_readable(SM_PATH . 'locale')) { |
705 | $localedir = dir(SM_PATH . 'locale'); |
706 | while($lang_dir=$localedir->read()) { |
707 | // remove trailing slash, if present |
708 | if (substr($lang_dir,-1)=='/') { |
709 | $lang_dir = substr($lang_dir,0,-1); |
710 | } |
711 | if ($lang_dir != '..' && $lang_dir != '.' && $lang_dir != 'CVS' && |
712 | is_dir(SM_PATH.'locale/'.$lang_dir) && |
713 | file_exists(SM_PATH.'locale/'.$lang_dir.'/setup.php')) { |
714 | include_once(SM_PATH.'locale/'.$lang_dir.'/setup.php'); |
715 | } |
89b3545c |
716 | } |
6c8a387f |
717 | $localedir->close(); |
89b3545c |
718 | } |
89b3545c |
719 | |
e0e1b169 |
720 | /* Detect whether gettext is installed. */ |
721 | $gettext_flags = 0; |
722 | if (function_exists('_')) { |
723 | $gettext_flags += 1; |
724 | } |
725 | if (function_exists('bindtextdomain')) { |
726 | $gettext_flags += 2; |
727 | } |
728 | if (function_exists('textdomain')) { |
729 | $gettext_flags += 4; |
730 | } |
731 | if (function_exists('ngettext')) { |
732 | $gettext_flags += 8; |
733 | } |
734 | |
735 | /* If gettext is fully loaded, cool */ |
736 | if ($gettext_flags == 15) { |
737 | $use_gettext = true; |
738 | } |
739 | |
740 | /* If ngettext support is missing, load it */ |
741 | elseif ($gettext_flags == 7) { |
742 | $use_gettext = true; |
743 | // load internal ngettext functions |
744 | include_once(SM_PATH . 'class/l10n.class.php'); |
745 | include_once(SM_PATH . 'functions/ngettext.php'); |
746 | } |
747 | |
748 | /* If we can fake gettext, try that */ |
749 | elseif ($gettext_flags == 0) { |
750 | $use_gettext = true; |
751 | include_once(SM_PATH . 'functions/gettext.php'); |
752 | } else { |
753 | /* Uh-ho. A weird install */ |
754 | if (! $gettext_flags & 1) { |
755 | /** |
756 | * Function is used as replacement in broken installs |
757 | * @ignore |
758 | */ |
759 | function _($str) { |
760 | return $str; |
761 | } |
762 | } |
763 | if (! $gettext_flags & 2) { |
764 | /** |
765 | * Function is used as replacement in broken installs |
766 | * @ignore |
767 | */ |
768 | function bindtextdomain() { |
769 | return; |
770 | } |
771 | } |
772 | if (! $gettext_flags & 4) { |
773 | /** |
774 | * Function is used as replacemet in broken installs |
775 | * @ignore |
776 | */ |
777 | function textdomain() { |
778 | return; |
779 | } |
780 | } |
781 | if (! $gettext_flags & 8) { |
782 | /** |
783 | * Function is used as replacemet in broken installs |
784 | * @ignore |
785 | */ |
786 | function ngettext($str,$str2,$number) { |
787 | if ($number>1) { |
788 | return $str2; |
789 | } else { |
790 | return $str; |
791 | } |
792 | } |
793 | } |
a9a10f57 |
794 | if (! function_exists('dgettext')) { |
795 | /** |
796 | * Replacement for broken setups. |
797 | * @ignore |
798 | */ |
799 | function dgettext($domain,$str) { |
800 | return $str; |
801 | } |
802 | } |
803 | if (! function_exists('dngettext')) { |
804 | /** |
805 | * Replacement for broken setups |
806 | * @ignore |
807 | */ |
808 | function dngettext($domain,$str1,$strn,$number) { |
809 | return ($number==1 ? $str1 : $strn); |
810 | } |
811 | } |
4e519821 |
812 | } |
51468260 |
813 | ?> |