/home/edulekha/crm.edulekha.com/application/vendor/ddeboer/imap/src/Message/Transcoder.php
<?php
declare(strict_types=1);
namespace Ddeboer\Imap\Message;
use Ddeboer\Imap\Exception\UnsupportedCharsetException;
final class Transcoder
{
/**
* @see https://encoding.spec.whatwg.org/#encodings
* @see https://dxr.mozilla.org/mozilla-central/source/dom/encoding/labelsencodings.properties
* @see https://dxr.mozilla.org/mozilla1.9.1/source/intl/uconv/src/charsetalias.properties
* @see https://msdn.microsoft.com/en-us/library/cc194829.aspx
*/
private const CHARSET_ALIASES = [
'128' => 'Shift_JIS',
'129' => 'EUC-KR',
'134' => 'GB2312',
'136' => 'Big5',
'161' => 'windows-1253',
'162' => 'windows-1254',
'177' => 'windows-1255',
'178' => 'windows-1256',
'186' => 'windows-1257',
'204' => 'windows-1251',
'222' => 'windows-874',
'238' => 'windows-1250',
'5601' => 'EUC-KR',
'646' => 'us-ascii',
'850' => 'IBM850',
'852' => 'IBM852',
'855' => 'IBM855',
'857' => 'IBM857',
'862' => 'IBM862',
'864' => 'IBM864',
'864i' => 'IBM864i',
'866' => 'IBM866',
'ansi-1251' => 'windows-1251',
'ansi_x3.4-1968' => 'us-ascii',
'arabic' => 'ISO-8859-6',
'ascii' => 'us-ascii',
'asmo-708' => 'ISO-8859-6',
'big5-hkscs' => 'Big5',
'chinese' => 'GB2312',
'cn-big5' => 'Big5',
'cns11643' => 'x-euc-tw',
'cp-866' => 'IBM866',
'cp1250' => 'windows-1250',
'cp1251' => 'windows-1251',
'cp1252' => 'windows-1252',
'cp1253' => 'windows-1253',
'cp1254' => 'windows-1254',
'cp1255' => 'windows-1255',
'cp1256' => 'windows-1256',
'cp1257' => 'windows-1257',
'cp1258' => 'windows-1258',
'cp819' => 'ISO-8859-1',
'cp850' => 'IBM850',
'cp852' => 'IBM852',
'cp855' => 'IBM855',
'cp857' => 'IBM857',
'cp862' => 'IBM862',
'cp864' => 'IBM864',
'cp864i' => 'IBM864i',
'cp866' => 'IBM866',
'cp932' => 'Shift_JIS',
'csbig5' => 'Big5',
'cseucjpkdfmtjapanese' => 'EUC-JP',
'cseuckr' => 'EUC-KR',
'cseucpkdfmtjapanese' => 'EUC-JP',
'csgb2312' => 'GB2312',
'csibm850' => 'IBM850',
'csibm852' => 'IBM852',
'csibm855' => 'IBM855',
'csibm857' => 'IBM857',
'csibm862' => 'IBM862',
'csibm864' => 'IBM864',
'csibm864i' => 'IBM864i',
'csibm866' => 'IBM866',
'csiso103t618bit' => 'T.61-8bit',
'csiso111ecmacyrillic' => 'ISO-IR-111',
'csiso2022jp' => 'ISO-2022-JP',
'csiso2022jp2' => 'ISO-2022-JP',
'csiso2022kr' => 'ISO-2022-KR',
'csiso58gb231280' => 'GB2312',
'csiso88596e' => 'ISO-8859-6-E',
'csiso88596i' => 'ISO-8859-6-I',
'csiso88598e' => 'ISO-8859-8-E',
'csiso88598i' => 'ISO-8859-8-I',
'csisolatin1' => 'ISO-8859-1',
'csisolatin2' => 'ISO-8859-2',
'csisolatin3' => 'ISO-8859-3',
'csisolatin4' => 'ISO-8859-4',
'csisolatin5' => 'ISO-8859-9',
'csisolatin6' => 'ISO-8859-10',
'csisolatin9' => 'ISO-8859-15',
'csisolatinarabic' => 'ISO-8859-6',
'csisolatincyrillic' => 'ISO-8859-5',
'csisolatingreek' => 'ISO-8859-7',
'csisolatinhebrew' => 'ISO-8859-8',
'cskoi8r' => 'KOI8-R',
'csksc56011987' => 'EUC-KR',
'csmacintosh' => 'x-mac-roman',
'csshiftjis' => 'Shift_JIS',
'csueckr' => 'EUC-KR',
'csunicode' => 'UTF-16BE',
'csunicode11' => 'UTF-16BE',
'csunicode11utf7' => 'UTF-7',
'csunicodeascii' => 'UTF-16BE',
'csunicodelatin1' => 'UTF-16BE',
'csviqr' => 'VIQR',
'csviscii' => 'VISCII',
'cyrillic' => 'ISO-8859-5',
'dos-874' => 'windows-874',
'ecma-114' => 'ISO-8859-6',
'ecma-118' => 'ISO-8859-7',
'ecma-cyrillic' => 'ISO-IR-111',
'elot_928' => 'ISO-8859-7',
'gb_2312' => 'GB2312',
'gb_2312-80' => 'GB2312',
'greek' => 'ISO-8859-7',
'greek8' => 'ISO-8859-7',
'hebrew' => 'ISO-8859-8',
'ibm-864' => 'IBM864',
'ibm-864i' => 'IBM864i',
'ibm819' => 'ISO-8859-1',
'ibm874' => 'windows-874',
'iso-10646' => 'UTF-16BE',
'iso-10646-j-1' => 'UTF-16BE',
'iso-10646-ucs-2' => 'UTF-16BE',
'iso-10646-ucs-4' => 'UTF-32BE',
'iso-10646-ucs-basic' => 'UTF-16BE',
'iso-10646-unicode-latin1' => 'UTF-16BE',
'iso-2022-cn-ext' => 'ISO-2022-CN',
'iso-2022-jp-2' => 'ISO-2022-JP',
'iso-8859-8i' => 'ISO-8859-8-I',
'iso-ir-100' => 'ISO-8859-1',
'iso-ir-101' => 'ISO-8859-2',
'iso-ir-103' => 'T.61-8bit',
'iso-ir-109' => 'ISO-8859-3',
'iso-ir-110' => 'ISO-8859-4',
'iso-ir-126' => 'ISO-8859-7',
'iso-ir-127' => 'ISO-8859-6',
'iso-ir-138' => 'ISO-8859-8',
'iso-ir-144' => 'ISO-8859-5',
'iso-ir-148' => 'ISO-8859-9',
'iso-ir-149' => 'EUC-KR',
'iso-ir-157' => 'ISO-8859-10',
'iso-ir-58' => 'GB2312',
'iso8859-1' => 'ISO-8859-1',
'iso8859-10' => 'ISO-8859-10',
'iso8859-11' => 'ISO-8859-11',
'iso8859-13' => 'ISO-8859-13',
'iso8859-14' => 'ISO-8859-14',
'iso8859-15' => 'ISO-8859-15',
'iso8859-2' => 'ISO-8859-2',
'iso8859-3' => 'ISO-8859-3',
'iso8859-4' => 'ISO-8859-4',
'iso8859-5' => 'ISO-8859-5',
'iso8859-6' => 'ISO-8859-6',
'iso8859-7' => 'ISO-8859-7',
'iso8859-8' => 'ISO-8859-8',
'iso8859-9' => 'ISO-8859-9',
'iso88591' => 'ISO-8859-1',
'iso885910' => 'ISO-8859-10',
'iso885911' => 'ISO-8859-11',
'iso885912' => 'ISO-8859-12',
'iso885913' => 'ISO-8859-13',
'iso885914' => 'ISO-8859-14',
'iso885915' => 'ISO-8859-15',
'iso88592' => 'ISO-8859-2',
'iso88593' => 'ISO-8859-3',
'iso88594' => 'ISO-8859-4',
'iso88595' => 'ISO-8859-5',
'iso88596' => 'ISO-8859-6',
'iso88597' => 'ISO-8859-7',
'iso88598' => 'ISO-8859-8',
'iso88599' => 'ISO-8859-9',
'iso_8859-1' => 'ISO-8859-1',
'iso_8859-15' => 'ISO-8859-15',
'iso_8859-1:1987' => 'ISO-8859-1',
'iso_8859-2' => 'ISO-8859-2',
'iso_8859-2:1987' => 'ISO-8859-2',
'iso_8859-3' => 'ISO-8859-3',
'iso_8859-3:1988' => 'ISO-8859-3',
'iso_8859-4' => 'ISO-8859-4',
'iso_8859-4:1988' => 'ISO-8859-4',
'iso_8859-5' => 'ISO-8859-5',
'iso_8859-5:1988' => 'ISO-8859-5',
'iso_8859-6' => 'ISO-8859-6',
'iso_8859-6:1987' => 'ISO-8859-6',
'iso_8859-7' => 'ISO-8859-7',
'iso_8859-7:1987' => 'ISO-8859-7',
'iso_8859-8' => 'ISO-8859-8',
'iso_8859-8:1988' => 'ISO-8859-8',
'iso_8859-9' => 'ISO-8859-9',
'iso_8859-9:1989' => 'ISO-8859-9',
'koi' => 'KOI8-R',
'koi8' => 'KOI8-R',
'koi8-ru' => 'KOI8-U',
'koi8_r' => 'KOI8-R',
'korean' => 'EUC-KR',
'ks_c_5601-1987' => 'EUC-KR',
'ks_c_5601-1989' => 'EUC-KR',
'ksc5601' => 'EUC-KR',
'ksc_5601' => 'EUC-KR',
'l1' => 'ISO-8859-1',
'l2' => 'ISO-8859-2',
'l3' => 'ISO-8859-3',
'l4' => 'ISO-8859-4',
'l5' => 'ISO-8859-9',
'l6' => 'ISO-8859-10',
'l9' => 'ISO-8859-15',
'latin1' => 'ISO-8859-1',
'latin2' => 'ISO-8859-2',
'latin3' => 'ISO-8859-3',
'latin4' => 'ISO-8859-4',
'latin5' => 'ISO-8859-9',
'latin6' => 'ISO-8859-10',
'logical' => 'ISO-8859-8-I',
'mac' => 'x-mac-roman',
'macintosh' => 'x-mac-roman',
'ms932' => 'Shift_JIS',
'ms_kanji' => 'Shift_JIS',
'shift-jis' => 'Shift_JIS',
'sjis' => 'Shift_JIS',
'sun_eu_greek' => 'ISO-8859-7',
't.61' => 'T.61-8bit',
'tis620' => 'TIS-620',
'unicode-1-1-utf-7' => 'UTF-7',
'unicode-1-1-utf-8' => 'UTF-8',
'unicode-2-0-utf-7' => 'UTF-7',
'visual' => 'ISO-8859-8',
'windows-31j' => 'Shift_JIS',
'windows-949' => 'EUC-KR',
'x-cp1250' => 'windows-1250',
'x-cp1251' => 'windows-1251',
'x-cp1252' => 'windows-1252',
'x-cp1253' => 'windows-1253',
'x-cp1254' => 'windows-1254',
'x-cp1255' => 'windows-1255',
'x-cp1256' => 'windows-1256',
'x-cp1257' => 'windows-1257',
'x-cp1258' => 'windows-1258',
'x-euc-jp' => 'EUC-JP',
'x-gbk' => 'gbk',
'x-iso-10646-ucs-2-be' => 'UTF-16BE',
'x-iso-10646-ucs-2-le' => 'UTF-16LE',
'x-iso-10646-ucs-4-be' => 'UTF-32BE',
'x-iso-10646-ucs-4-le' => 'UTF-32LE',
'x-mac-ce' => 'windows-1250',
'x-sjis' => 'Shift_JIS',
'x-unicode-2-0-utf-7' => 'UTF-7',
'x-x-big5' => 'Big5',
'zh_cn.euc' => 'GB2312',
'zh_tw-big5' => 'Big5',
'zh_tw-euc' => 'x-euc-tw',
];
/**
* Decode text to UTF-8.
*
* @param string $text Text to decode
* @param string $fromCharset Original charset
*/
public static function decode(string $text, string $fromCharset): string
{
static $utf8Aliases = [
'unicode-1-1-utf-8' => true,
'utf8' => true,
'utf-8' => true,
'UTF8' => true,
'UTF-8' => true,
];
if (isset($utf8Aliases[$fromCharset])) {
return $text;
}
$originalFromCharset = $fromCharset;
$lowercaseFromCharset = \strtolower($fromCharset);
if (isset(self::CHARSET_ALIASES[$lowercaseFromCharset])) {
$fromCharset = self::CHARSET_ALIASES[$lowercaseFromCharset];
}
\set_error_handler(static function (): bool {
return true;
});
$iconvDecodedText = \iconv($fromCharset, 'UTF-8', $text);
if (false === $iconvDecodedText) {
$iconvDecodedText = \iconv($originalFromCharset, 'UTF-8', $text);
}
\restore_error_handler();
if (false !== $iconvDecodedText) {
return $iconvDecodedText;
}
$errorMessage = null;
$errorNumber = 0;
\set_error_handler(static function ($nr, $message) use (&$errorMessage, &$errorNumber): bool {
$errorMessage = $message;
$errorNumber = $nr;
return true;
});
$decodedText = '';
try {
$decodedText = \mb_convert_encoding($text, 'UTF-8', $fromCharset);
} catch (\Error $error) {
$errorMessage = $error->getMessage();
}
\restore_error_handler();
if (null !== $errorMessage) {
throw new UnsupportedCharsetException(\sprintf(
'Unsupported charset "%s"%s: %s',
$originalFromCharset,
($fromCharset !== $originalFromCharset) ? \sprintf(' (alias found: "%s")', $fromCharset) : '',
$errorMessage
), $errorNumber);
}
return $decodedText;
}
}