-<?
+<?php
/**
- ** i18n.php
- **
- ** This file contains variuos functions that are needed to do
- ** internationalization of SquirrelMail.
- **
- ** Internally iso-8859-1 is used as character set. Other characters
- ** are encoded using Unicode entities according to HTML 4.0.
- **
- **/
-
- $i18n_php = true;
-
- // This array specifies the available languages.
- $languages[0]["NAME"] = "English";
- $languages[0]["CODE"] = "en";
- $languages[1]["NAME"] = "Norsk";
- $languages[1]["CODE"] = "no";
- $languages[2]["NAME"] = "Deutcsh";
- $languages[2]["CODE"] = "de";
-
- // Decodes a string to the internal encoding from the given charset
- function charset_decode ($charset, $string) {
- // All HTML special characters are 7 bit and can be replaced first
- $string = htmlspecialchars ($string);
-
- $charset = strtolower($charset);
-
- if (ereg("iso-8859-(.*)", $charset, $res)) {
- if ($res[1] == "1")
- return charset_decode_iso_8859_1 ($string);
- if ($res[1] == "7")
- return charset_decode_iso_8859_7 ($string);
- else if ($res[1] == "15")
- return charset_decode_iso_8859_15 ($string);
- else
- return charset_decode_iso_8859_default ($string);
- } else if ($charset == "ns_4551-1") {
- return charset_decode_ns_4551_1 ($string);
- } else
- return $string;
- }
-
- // iso-8859-1 is the same as Latin 1 and is normally used
- // in western europe.
- function charset_decode_iso_8859_1 ($string) {
- // This is only debug code as long as the internal
- // character set is iso-8859-1
-
- // Latin small letter o with stroke
- while (ereg("\370", $string))
- $string = ereg_replace ("\370", "ø", $string);
-
- return ($string);
- }
-
- // iso-8859-7 is Greek.
- function charset_decode_iso_8859_7 ($string) {
- // Could not find Unicode equivalent of 0xA1 and 0xA2
- // 0xA4, 0xA5, 0xAA, 0xAE, 0xD2 and 0xFF should not be used
- $string = strtr($string, "\241\242\244\245\252\256\322\377",
- "????????");
-
- // Horizontal bar (parentheki pavla)
- while (ereg("\257", $string))
- $string = ereg_replace ("\257", "―", $string);
-
- // ISO-8859-7 characters from 11/04 (0xB4) to 11/06 (0xB6)
- // These are Unicode 900-902
- while (ereg("([\264-\266])", $string, $res)) {
- $replace = "&#" . (ord($res[1])+720) . ";";
- $string = ereg_replace($res[1], $replace, $string);
- }
-
- // 11/07 (0xB7) Middle dot is the same in iso-8859-1
-
- // ISO-8859-7 characters from 11/08 (0xB8) to 11/10 (0xBA)
- // These are Unicode 900-902
- while (ereg("([\270-\272])", $string, $res)) {
- $replace = "&#" . (ord($res[1])+720) . ";";
- $string = ereg_replace($res[1], $replace, $string);
- }
-
- // 11/11 (0xBB) Right angle quotation mark is the same as in
- // iso-8859-1
-
- // And now the rest of the charset
- while (ereg("([\273-\376])", $string, $res)) {
- $replace = "&#" . (ord($res[1])+720) . ";";
- $string = ereg_replace($res[1], $replace, $string);
- }
-
- return $string;
- }
-
- // iso-8859-15 is Latin 15 and has very much the same use as Latin 1
- // but has the Euro symbol and some characters needed for French.
- function charset_decode_iso_8859_15 ($string) {
- // Euro sign
- while (ereg("\244", $replace))
- $string = ereg_replace ("\244", "€", $string);
- // Latin capital letter S with caron
- while (ereg("\246", $string))
- $string = ereg_replace ("\244", "Š", $string);
- // Latin small letter s with caron
- while (ereg("\250", $string))
- $string = ereg_replace ("\250", "š", $string);
- // Latin capital letter Z with caron
- while (ereg("\264", $string))
- $string = ereg_replace ("\264", "Ž", $string);
- // Latin small letter z with caron
- while (ereg("\270", $string))
- $string = ereg_replace ("\270", "ž", $string);
- // Latin capital ligature OE
- while (ereg("\274", $string))
- $string = ereg_replace ("\274", "Œ", $string);
- // Latin small ligature oe
- while (ereg("\275", $string))
- $string = ereg_replace ("\275", "œ", $string);
- // Latin capital letter Y with diaeresis
- while (ereg("\276", $string))
- $string = ereg_replace ("\276", "Ÿ", $string);
-
- return ($string);
- }
-
- // Remove all 8 bit characters from all other ISO-8859 character sets
- function charset_decode_iso_8859_default ($string) {
- return (strtr($string, "\240\241\242\243\244\245\246\247".
- "\250\251\252\253\254\255\256\257".
- "\260\261\262\263\264\265\266\267".
- "\270\271\272\273\274\275\276\277".
- "\300\301\302\303\304\305\306\307".
- "\310\311\312\313\314\315\316\317".
- "\320\321\322\323\324\325\326\327".
- "\330\331\332\333\334\335\336\337".
- "\340\341\342\343\344\345\346\347".
- "\350\351\352\353\354\355\356\357".
- "\360\361\362\363\364\365\366\367".
- "\370\371\372\373\374\375\376\377",
- "????????????????????????????????????????".
- "????????????????????????????????????????".
- "????????????????????????????????????????".
- "????????"));
-
- }
-
- // This is the same as ISO-646-NO and is used by some
- // Microsoft programs when sending Norwegian characters
- function charset_decode_ns_4551_1 ($string) {
- // These characters are:
- // Latin capital letter AE
- // Latin capital letter O with stroke
- // Latin capital letter A with ring above
- // and the same as small letters
- return strtr ($string, "[\\]{|}", "ÆØÅæøå");
- }
-
-?>
+ * SquirrelMail internationalization functions
+ *
+ * This file contains variuos functions that are needed to do
+ * internationalization of SquirrelMail.
+ *
+ * Internally the output character set is used. Other characters are
+ * encoded using Unicode entities according to HTML 4.0.
+ *
+ * @copyright © 1999-2006 The SquirrelMail Project Team
+ * @license http://opensource.org/licenses/gpl-license.php GNU Public License
+ * @version $Id$
+ * @package squirrelmail
+ * @subpackage i18n
+ */
+
+/** @ignore */
+if (! defined('SM_PATH')) define('SM_PATH','../');
+
+/** Everything uses global.php... */
+require_once(SM_PATH . 'functions/global.php');
+
+/**
+ * Gettext bindtextdomain wrapper.
+ *
+ * Wrapper solves differences between php versions in order to provide
+ * ngettext support. Should be used if translation uses ngettext
+ * functions.
+ * @since 1.5.1
+ * @param string $domain gettext domain name
+ * @param string $dir directory that contains all translations
+ * @return string path to translation directory
+ */
+function sq_bindtextdomain($domain,$dir) {
+ global $l10n, $gettext_flags, $sm_notAlias;
+
+ if ($gettext_flags==7) {
+ // gettext extension without ngettext
+ if (substr($dir, -1) != '/') $dir .= '/';
+ $mofile=$dir . $sm_notAlias . '/LC_MESSAGES/' . $domain . '.mo';
+ $input = new FileReader($mofile);
+ $l10n[$domain] = new gettext_reader($input);
+ }
+
+ $dir=bindtextdomain($domain,$dir);
+
+ return $dir;
+}
+
+/**
+ * Gettext textdomain wrapper.
+ * Makes sure that gettext_domain global is modified.
+ * @since 1.5.1
+ * @param string $name gettext domain name
+ * @return string gettext domain name
+ */
+function sq_textdomain($domain) {
+ global $gettext_domain;
+ $gettext_domain=textdomain($domain);
+ return $gettext_domain;
+}
+
+/**
+ * php setlocale function wrapper
+ *
+ * From php 4.3.0 it is possible to use arrays in order to set locale.
+ * php gettext extension works only when locale is set. This wrapper
+ * function allows to use more than one locale name.
+ *
+ * @param int $category locale category name. Use php named constants
+ * (LC_ALL, LC_COLLATE, LC_CTYPE, LC_MONETARY, LC_NUMERIC, LC_TIME)
+ * @param mixed $locale option contains array with possible locales or string with one locale
+ * @return string name of set locale or false, if all locales fail.
+ * @since 1.5.1 and 1.4.5
+ * @see http://www.php.net/setlocale
+ */
+function sq_setlocale($category,$locale) {
+ // string with only one locale
+ if (is_string($locale))
+ return setlocale($category,$locale);
+
+ if (! check_php_version(4,3)) {
+ $ret=false;
+ $index=0;
+ while ( ! $ret && $index<count($locale)) {
+ $ret=setlocale($category,$locale[$index]);
+ $index++;
+ }
+ } else {
+ // php 4.3.0 or better, use entire array
+ $ret=setlocale($category,$locale);
+ }
+ return $ret;
+}
+
+/**
+ * Converts string from given charset to charset, that can be displayed by user translation.
+ *
+ * Function by default returns html encoded strings, if translation uses different encoding.
+ * If Japanese translation is used - function returns string converted to euc-jp
+ * If iconv or recode functions are enabled and translation uses utf-8 - function returns utf-8 encoded string.
+ * If $charset is not supported - function returns unconverted string.
+ *
+ * sanitizing of html tags is also done by this function.
+ *
+ * @param string $charset
+ * @param string $string Text to be decoded
+ * @param boolean $force_decode converts string to html without $charset!=$default_charset check.
+ * Argument is available since 1.5.1 and 1.4.5.
+ * @param boolean $save_html disables htmlspecialchars() in order to preserve
+ * html formating. Use with care. Available since 1.5.1
+ * @return string decoded string
+ */
+function charset_decode ($charset, $string, $force_decode=false, $save_html=false) {
+ global $languages, $squirrelmail_language, $default_charset;
+ global $use_php_recode, $use_php_iconv, $aggressive_decoding;
+
+ if (isset($languages[$squirrelmail_language]['XTRA_CODE']) &&
+ function_exists($languages[$squirrelmail_language]['XTRA_CODE'] . '_decode')) {
+ $string = call_user_func($languages[$squirrelmail_language]['XTRA_CODE'] . '_decode', $string);
+ }
+
+ $charset = strtolower($charset);
+
+ set_my_charset();
+
+ // Variables that allow to use functions without function_exist() calls
+ if (! isset($use_php_recode) || $use_php_recode=="" ) {
+ $use_php_recode=false; }
+ if (! isset($use_php_iconv) || $use_php_iconv=="" ) {
+ $use_php_iconv=false; }
+
+ // Don't do conversion if charset is the same.
+ if ( ! $force_decode && $charset == strtolower($default_charset) )
+ return ($save_html ? $string : htmlspecialchars($string));
+
+ // catch iso-8859-8-i thing
+ if ( $charset == "iso-8859-8-i" )
+ $charset = "iso-8859-8";
+
+ /*
+ * Recode converts html special characters automatically if you use
+ * 'charset..html' decoding. There is no documented way to put -d option
+ * into php recode function call.
+ */
+ if ( $use_php_recode ) {
+ if ( $default_charset == "utf-8" ) {
+ // other charsets can be converted to utf-8 without loss.
+ // and output string is smaller
+ $string = recode_string($charset . "..utf-8",$string);
+ return ($save_html ? $string : htmlspecialchars($string));
+ } else {
+ $string = recode_string($charset . "..html",$string);
+ // recode does not convert single quote, htmlspecialchars does.
+ $string = str_replace("'", ''', $string);
+ // undo html specialchars
+ if ($save_html)
+ $string=str_replace(array('&','"','<','>'),
+ array('&','"','<','>'),$string);
+ return $string;
+ }
+ }
+
+ // iconv functions does not have html target and can be used only with utf-8
+ if ( $use_php_iconv && $default_charset=='utf-8') {
+ $string = iconv($charset,$default_charset,$string);
+ return ($save_html ? $string : htmlspecialchars($string));
+ }
+
+ // If we don't use recode and iconv, we'll do it old way.
+
+ /* All HTML special characters are 7 bit and can be replaced first */
+ if (! $save_html) $string = htmlspecialchars ($string);
+
+ /* controls cpu and memory intensive decoding cycles */
+ if (! isset($aggressive_decoding) || $aggressive_decoding=="" ) {
+ $aggressive_decoding=false; }
+
+ $decode=fixcharset($charset);
+ $decodefile=SM_PATH . 'functions/decode/' . $decode . '.php';
+ if (file_exists($decodefile)) {
+ include_once($decodefile);
+ // send $save_html argument to decoding function. needed for iso-2022-xx decoding.
+ $ret = call_user_func('charset_decode_'.$decode, $string, $save_html);
+ } else {
+ $ret = $string;
+ }
+ return( $ret );
+}
+
+/**
+ * Converts html string to given charset
+ * @since 1.5.1 and 1.4.4
+ * @param string $string
+ * @param string $charset
+ * @param boolean $htmlencode keep htmlspecialchars encoding
+ * @param string
+ */
+function charset_encode($string,$charset,$htmlencode=true) {
+ global $default_charset;
+
+ $encode=fixcharset($charset);
+ $encodefile=SM_PATH . 'functions/encode/' . $encode . '.php';
+ if (file_exists($encodefile)) {
+ include_once($encodefile);
+ $ret = call_user_func('charset_encode_'.$encode, $string);
+ } elseif(file_exists(SM_PATH . 'functions/encode/us_ascii.php')) {
+ // function replaces all 8bit html entities with question marks.
+ // it is used when other encoding functions are unavailable
+ include_once(SM_PATH . 'functions/encode/us_ascii.php');
+ $ret = charset_encode_us_ascii($string);
+ } else {
+ /**
+ * fix for yahoo users that remove all us-ascii related things
+ */
+ $ret = $string;
+ }
+
+ /**
+ * Undo html special chars, some places (like compose form) have
+ * own sanitizing functions and don't need html symbols.
+ * Undo chars only after encoding in order to prevent conversion of
+ * html entities in plain text emails.
+ */
+ if (! $htmlencode ) {
+ $ret = str_replace(array('&','>','<','"'),array('&','>','<','"'),$ret);
+ }
+ return( $ret );
+}
+
+/**
+ * Combined decoding and encoding functions
+ *
+ * If conversion is done to charset different that utf-8, unsupported symbols
+ * will be replaced with question marks.
+ * @since 1.5.1 and 1.4.4
+ * @param string $in_charset initial charset
+ * @param string $string string that has to be converted
+ * @param string $out_charset final charset
+ * @param boolean $htmlencode keep htmlspecialchars encoding
+ * @return string converted string
+ */
+function charset_convert($in_charset,$string,$out_charset,$htmlencode=true) {
+ $string=charset_decode($in_charset,$string,true);
+ $string=charset_encode($string,$out_charset,$htmlencode);
+ return $string;
+}
+
+/**
+ * Makes charset name suitable for decoding cycles
+ *
+ * @since 1.5.0 and 1.4.4
+ * @param string $charset Name of charset
+ * @return string $charset Adjusted name of charset
+ */
+function fixcharset($charset) {
+ /* remove minus and characters that might be used in paths from charset
+ * name in order to be able to use it in function names and include calls.
+ */
+ $charset=preg_replace("/[-:.\/\\\]/",'_',$charset);
+
+ // OE ks_c_5601_1987 > cp949
+ $charset=str_replace('ks_c_5601_1987','cp949',$charset);
+ // Moz x-euc-tw > euc-tw
+ $charset=str_replace('x_euc','euc',$charset);
+ // Moz x-windows-949 > cp949
+ $charset=str_replace('x_windows_','cp',$charset);
+
+ // windows-125x and cp125x charsets
+ $charset=str_replace('windows_','cp',$charset);
+
+ // ibm > cp
+ $charset=str_replace('ibm','cp',$charset);
+
+ // iso-8859-8-i -> iso-8859-8
+ // use same cycle until I'll find differences
+ $charset=str_replace('iso_8859_8_i','iso_8859_8',$charset);
+
+ return $charset;
+}
+
+/**
+ * Set up the language to be output
+ * if $do_search is true, then scan the browser information
+ * for a possible language that we know
+ *
+ * Function sets system locale environment (LC_ALL, LANG, LANGUAGE),
+ * gettext translation bindings and html header information.
+ *
+ * Function returns error codes, if there is some fatal error.
+ * 0 = no error,
+ * 1 = mbstring support is not present,
+ * 2 = mbstring support is not present, user's translation reverted to en_US.
+ *
+ * @param string $sm_language translation used by user's interface
+ * @param bool $do_search use browser's preferred language detection functions. Defaults to false.
+ * @param bool $default set $sm_language to $squirrelmail_default_language if language detection fails or language is not set. Defaults to false.
+ * @return int function execution error codes.
+ */
+function set_up_language($sm_language, $do_search = false, $default = false) {
+
+ static $SetupAlready = 0;
+ global $use_gettext, $languages,
+ $squirrelmail_language, $squirrelmail_default_language, $default_charset,
+ $sm_notAlias, $username, $data_dir;
+
+ if ($SetupAlready) {
+ return;
+ }
+
+ $SetupAlready = TRUE;
+ sqgetGlobalVar('HTTP_ACCEPT_LANGUAGE', $accept_lang, SQ_SERVER);
+
+ /**
+ * If function is asked to detect preferred language
+ * OR squirrelmail default language is set to empty string
+ * AND
+ * squirrelmail language ($sm_language) is empty string
+ * (not set in user's prefs and no cookie with language info)
+ * AND
+ * browser provides list of preferred languages
+ * THEN
+ * get preferred language from HTTP_ACCEPT_LANGUAGE header
+ */
+ if (($do_search || empty($squirrelmail_default_language)) &&
+ ! $sm_language &&
+ isset($accept_lang)) {
+ // TODO: use more than one language, if first language is not available
+ // FIXME: function assumes that string contains two or more characters.
+ // FIXME: some languages use 5 chars
+ $sm_language = substr($accept_lang, 0, 2);
+ }
+
+ /**
+ * If language preference is not set OR script asks to use default language
+ * AND
+ * default squirrelmail language is not set to empty string
+ * THEN
+ * use default squirrelmail language value from configuration.
+ */
+ if ((!$sm_language||$default) &&
+ ! empty($squirrelmail_default_language)) {
+ $squirrelmail_language = $squirrelmail_default_language;
+ $sm_language = $squirrelmail_default_language;
+ }
+
+ /** provide failsafe language when detection fails */
+ if (! $sm_language) $sm_language='en_US';
+
+ $sm_notAlias = $sm_language;
+
+ // Catching removed translation
+ // System reverts to English translation if user prefs contain translation
+ // that is not available in $languages array
+ if (!isset($languages[$sm_notAlias])) {
+ $sm_notAlias="en_US";
+ }
+
+ while (isset($languages[$sm_notAlias]['ALIAS'])) {
+ $sm_notAlias = $languages[$sm_notAlias]['ALIAS'];
+ }
+
+ if ( isset($sm_language) &&
+ $use_gettext &&
+ $sm_language != '' &&
+ isset($languages[$sm_notAlias]['CHARSET']) ) {
+ sq_bindtextdomain( 'squirrelmail', SM_PATH . 'locale/' );
+ sq_textdomain( 'squirrelmail' );
+
+ // set codeset in order to avoid gettext charset conversions
+ if (function_exists('bind_textdomain_codeset')) {
+ // Japanese translation uses different internal charset
+ if ($sm_notAlias == 'ja_JP') {
+ bind_textdomain_codeset ('squirrelmail', 'EUC-JP');
+ } else {
+ bind_textdomain_codeset ('squirrelmail', $languages[$sm_notAlias]['CHARSET'] );
+ }
+ }
+
+ // Use LOCALE key, if it is set.
+ if (isset($languages[$sm_notAlias]['LOCALE'])){
+ $longlocale=$languages[$sm_notAlias]['LOCALE'];
+ } else {
+ $longlocale=$sm_notAlias;
+ }
+
+ // try setting locale
+ $retlocale=sq_setlocale(LC_ALL, $longlocale);
+
+ // check if locale is set and assign that locale to $longlocale
+ // in order to use it in putenv calls.
+ if (! is_bool($retlocale)) {
+ $longlocale=$retlocale;
+ } elseif (is_array($longlocale)) {
+ // setting of all locales failed.
+ // we need string instead of array used in LOCALE key.
+ $longlocale=$sm_notAlias;
+ }
+
+ if ( !((bool)ini_get('safe_mode')) &&
+ getenv( 'LC_ALL' ) != $longlocale ) {
+ putenv( "LC_ALL=$longlocale" );
+ putenv( "LANG=$longlocale" );
+ putenv( "LANGUAGE=$longlocale" );
+ putenv( "LC_NUMERIC=C" );
+ if ($sm_notAlias=='tr_TR') putenv( "LC_CTYPE=C" );
+ }
+ // Workaround for plugins that use numbers with floating point
+ // It might be removed if plugins use correct decimal delimiters
+ // according to locale settings.
+ setlocale(LC_NUMERIC, 'C');
+ // Workaround for specific Turkish strtolower/strtoupper rules.
+ // Many functions expect English conversion rules.
+ if ($sm_notAlias=='tr_TR') setlocale(LC_CTYPE,'C');
+
+ /**
+ * Set text direction/alignment variables
+ * When language environment is setup, scripts can use these globals
+ * without accessing $languages directly and making checks for optional
+ * array key.
+ */
+ global $text_direction, $left_align, $right_align;
+ if (isset($languages[$sm_notAlias]['DIR']) &&
+ $languages[$sm_notAlias]['DIR'] == 'rtl') {
+ /**
+ * Text direction
+ * @global string $text_direction
+ */
+ $text_direction='rtl';
+ /**
+ * Left alignment
+ * @global string $left_align
+ */
+ $left_align='right';
+ /**
+ * Right alignment
+ * @global string $right_align
+ */
+ $right_align='left';
+ } else {
+ $text_direction='ltr';
+ $left_align='left';
+ $right_align='right';
+ }
+
+ $squirrelmail_language = $sm_notAlias;
+ if ($squirrelmail_language == 'ja_JP') {
+ header ('Content-Type: text/html; charset=EUC-JP');
+ if (!function_exists('mb_internal_encoding')) {
+ // Error messages can't be displayed here
+ $error = 1;
+ // Revert to English if possible.
+ if (function_exists('setPref') && $username!='' && $data_dir!="") {
+ setPref($data_dir, $username, 'language', "en_US");
+ $error = 2;
+ }
+ // stop further execution in order not to get php errors on mb_internal_encoding().
+ return $error;
+ }
+ if (function_exists('mb_language')) {
+ mb_language('Japanese');
+ }
+ mb_internal_encoding('EUC-JP');
+ mb_http_output('pass');
+ } elseif ($squirrelmail_language == 'en_US') {
+ header( 'Content-Type: text/html; charset=' . $default_charset );
+ } else {
+ header( 'Content-Type: text/html; charset=' . $languages[$sm_notAlias]['CHARSET'] );
+ }
+ /**
+ * mbstring.func_overload fix (#929644).
+ *
+ * php mbstring extension can replace standard string functions with their multibyte
+ * equivalents. See http://www.php.net/ref.mbstring#mbstring.overload. This feature
+ * was added in php v.4.2.0
+ *
+ * Some SquirrelMail functions work with 8bit strings in bytes. If interface is forced
+ * to use mbstring functions and mbstring internal encoding is set to multibyte charset,
+ * interface can't trust regular string functions. Due to mbstring overloading design
+ * limits php scripts can't control this setting.
+ *
+ * This hack should fix some issues related to 8bit strings in passwords. Correct fix is
+ * to disable mbstring overloading. Japanese translation uses different internal encoding.
+ */
+ if ($squirrelmail_language != 'ja_JP' &&
+ function_exists('mb_internal_encoding') &&
+ check_php_version(4,2,0) &&
+ (int)ini_get('mbstring.func_overload')!=0) {
+ mb_internal_encoding('pass');
+ }
+ }
+ return 0;
+}
+
+/**
+ * Sets default_charset variable according to the one that is used by user's translations.
+ *
+ * Function changes global $default_charset variable in order to be sure, that it
+ * contains charset used by user's translation. Sanity of $squirrelmail_language
+ * and $default_charset combination is also tested.
+ *
+ * There can be a $default_charset setting in the
+ * config.php file, but the user may have a different language
+ * selected for a user interface. This function checks the
+ * language selected by the user and tags the outgoing messages
+ * with the appropriate charset corresponding to the language
+ * selection. This is "more right" (tm), than just stamping the
+ * message blindly with the system-wide $default_charset.
+ */
+function set_my_charset(){
+ global $data_dir, $username, $default_charset, $languages, $squirrelmail_language;
+
+ $my_language = getPref($data_dir, $username, 'language');
+ if (!$my_language) {
+ $my_language = $squirrelmail_language ;
+ }
+ // Catch removed translation
+ if (!isset($languages[$my_language])) {
+ $my_language="en_US";
+ }
+ while (isset($languages[$my_language]['ALIAS'])) {
+ $my_language = $languages[$my_language]['ALIAS'];
+ }
+ $my_charset = $languages[$my_language]['CHARSET'];
+ if ($my_language!='en_US') {
+ $default_charset = $my_charset;
+ }
+}
+
+/**
+ * Replaces non-braking spaces inserted by some browsers with regular space
+ *
+ * This function can be used to replace non-braking space symbols
+ * that are inserted in forms by some browsers instead of normal
+ * space symbol.
+ *
+ * @param string $string Text that needs to be cleaned
+ * @param string $charset Charset used in text
+ * @return string Cleaned text
+ */
+function cleanup_nbsp($string,$charset) {
+
+ // reduce number of case statements
+ if (stristr('iso-8859-',substr($charset,0,9))){
+ $output_charset="iso-8859-x";
+ }
+ if (stristr('windows-125',substr($charset,0,11))){
+ $output_charset="cp125x";
+ }
+ if (stristr('koi8',substr($charset,0,4))){
+ $output_charset="koi8-x";
+ }
+ if (! isset($output_charset)){
+ $output_charset=strtolower($charset);
+ }
+
+// where is non-braking space symbol
+switch($output_charset):
+ case "iso-8859-x":
+ case "cp125x":
+ case "iso-2022-jp":
+ $nbsp="\xA0";
+ break;
+ case "koi8-x":
+ $nbsp="\x9A";
+ break;
+ case "utf-8":
+ $nbsp="\xC2\xA0";
+ break;
+ default:
+ // don't change string if charset is unmatched
+ return $string;
+endswitch;
+
+// return space instead of non-braking space.
+ return str_replace($nbsp,' ',$string);
+}
+
+/**
+ * Function informs if it is safe to convert given charset to the one that is used by user.
+ *
+ * It is safe to use conversion only if user uses utf-8 encoding and when
+ * converted charset is similar to the one that is used by user.
+ *
+ * @param string $input_charset Charset of text that needs to be converted
+ * @return bool is it possible to convert to user's charset
+ */
+function is_conversion_safe($input_charset) {
+ global $languages, $sm_notAlias, $default_charset, $lossy_encoding;
+
+ if (isset($lossy_encoding) && $lossy_encoding )
+ return true;
+
+ // convert to lower case
+ $input_charset = strtolower($input_charset);
+
+ // Is user's locale Unicode based ?
+ if ( $default_charset == "utf-8" ) {
+ return true;
+ }
+
+ // Charsets that are similar
+switch ($default_charset):
+case "windows-1251":
+ if ( $input_charset == "iso-8859-5" ||
+ $input_charset == "koi8-r" ||
+ $input_charset == "koi8-u" ) {
+ return true;
+ } else {
+ return false;
+ }
+case "windows-1257":
+ if ( $input_charset == "iso-8859-13" ||
+ $input_charset == "iso-8859-4" ) {
+ return true;
+ } else {
+ return false;
+ }
+case "iso-8859-4":
+ if ( $input_charset == "iso-8859-13" ||
+ $input_charset == "windows-1257" ) {
+ return true;
+ } else {
+ return false;
+ }
+case "iso-8859-5":
+ if ( $input_charset == "windows-1251" ||
+ $input_charset == "koi8-r" ||
+ $input_charset == "koi8-u" ) {
+ return true;
+ } else {
+ return false;
+ }
+case "iso-8859-13":
+ if ( $input_charset == "iso-8859-4" ||
+ $input_charset == "windows-1257" ) {
+ return true;
+ } else {
+ return false;
+ }
+case "koi8-r":
+ if ( $input_charset == "windows-1251" ||
+ $input_charset == "iso-8859-5" ||
+ $input_charset == "koi8-u" ) {
+ return true;
+ } else {
+ return false;
+ }
+case "koi8-u":
+ if ( $input_charset == "windows-1251" ||
+ $input_charset == "iso-8859-5" ||
+ $input_charset == "koi8-r" ) {
+ return true;
+ } else {
+ return false;
+ }
+default:
+ return false;
+endswitch;
+}
+
+
+/* ------------------------------ main --------------------------- */
+
+global $squirrelmail_language, $languages, $use_gettext;
+
+if (! sqgetGlobalVar('squirrelmail_language',$squirrelmail_language,SQ_COOKIE)) {
+ $squirrelmail_language = '';
+}
+
+/**
+ * Array specifies the available translations.
+ *
+ * Structure of array:
+ * $languages['language']['variable'] = 'value'
+ *
+ * Possible 'variable' names:
+ * NAME - Translation name in English
+ * CHARSET - Encoding used by translation
+ * ALIAS - used when 'language' is only short name and 'value' should provide long language name
+ * ALTNAME - Native translation name. Any 8bit symbols must be html encoded.
+ * 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
+ * DIR - Text direction. Used to define Right-to-Left languages. Possible values 'rtl' or 'ltr'. If undefined - defaults to 'ltr'
+ * XTRA_CODE - translation uses special functions. See doc/i18n.txt
+ *
+ * Each 'language' definition requires NAME+CHARSET or ALIAS variables.
+ *
+ * @name $languages
+ * @global array $languages
+ */
+$languages['en_US']['NAME'] = 'English';
+$languages['en_US']['CHARSET'] = 'iso-8859-1';
+$languages['en_US']['LOCALE'] = 'en_US.ISO8859-1';
+$languages['en']['ALIAS'] = 'en_US';
+
+/**
+ * Automatic translation loading from setup.php files.
+ * Solution for bug. 1240889.
+ * setup.php file can contain $languages array entries and XTRA_CODE functions.
+ */
+if (is_dir(SM_PATH . 'locale') &&
+ is_readable(SM_PATH . 'locale')) {
+ $localedir = dir(SM_PATH . 'locale');
+ while($lang_dir=$localedir->read()) {
+ // remove trailing slash, if present
+ if (substr($lang_dir,-1)=='/') {
+ $lang_dir = substr($lang_dir,0,-1);
+ }
+ if ($lang_dir != '..' && $lang_dir != '.' && $lang_dir != 'CVS' &&
+ is_dir(SM_PATH.'locale/'.$lang_dir) &&
+ file_exists(SM_PATH.'locale/'.$lang_dir.'/setup.php')) {
+ include_once(SM_PATH.'locale/'.$lang_dir.'/setup.php');
+ }
+ }
+ $localedir->close();
+}
+
+/* Detect whether gettext is installed. */
+$gettext_flags = 0;
+if (function_exists('_')) {
+ $gettext_flags += 1;
+}
+if (function_exists('bindtextdomain')) {
+ $gettext_flags += 2;
+}
+if (function_exists('textdomain')) {
+ $gettext_flags += 4;
+}
+if (function_exists('ngettext')) {
+ $gettext_flags += 8;
+}
+
+/* If gettext is fully loaded, cool */
+if ($gettext_flags == 15) {
+ $use_gettext = true;
+}
+
+/* If ngettext support is missing, load it */
+elseif ($gettext_flags == 7) {
+ $use_gettext = true;
+ // load internal ngettext functions
+ include_once(SM_PATH . 'class/l10n.class.php');
+ include_once(SM_PATH . 'functions/ngettext.php');
+}
+
+/* If we can fake gettext, try that */
+elseif ($gettext_flags == 0) {
+ $use_gettext = true;
+ include_once(SM_PATH . 'functions/gettext.php');
+} else {
+ /* Uh-ho. A weird install */
+ if (! $gettext_flags & 1) {
+ /**
+ * Function is used as replacement in broken installs
+ * @ignore
+ */
+ function _($str) {
+ return $str;
+ }
+ }
+ if (! $gettext_flags & 2) {
+ /**
+ * Function is used as replacement in broken installs
+ * @ignore
+ */
+ function bindtextdomain() {
+ return;
+ }
+ }
+ if (! $gettext_flags & 4) {
+ /**
+ * Function is used as replacemet in broken installs
+ * @ignore
+ */
+ function textdomain() {
+ return;
+ }
+ }
+ if (! $gettext_flags & 8) {
+ /**
+ * Function is used as replacemet in broken installs
+ * @ignore
+ */
+ function ngettext($str,$str2,$number) {
+ if ($number>1) {
+ return $str2;
+ } else {
+ return $str;
+ }
+ }
+ }
+ if (! function_exists('dgettext')) {
+ /**
+ * Replacement for broken setups.
+ * @ignore
+ */
+ function dgettext($domain,$str) {
+ return $str;
+ }
+ }
+ if (! function_exists('dngettext')) {
+ /**
+ * Replacement for broken setups
+ * @ignore
+ */
+ function dngettext($domain,$str1,$strn,$number) {
+ return ($number==1 ? $str1 : $strn);
+ }
+ }
+}
+?>
\ No newline at end of file