解码mime邮件的代码

作者/来源：sadly
wwww.chin aitpower.comT1GUtgqRH56QHPRq70UGFdwJD

wwww.chin aitpower.comT1GUtgqRH56QHPRq70UGFdwJD
解码mime邮件的代码
wwww.chin aitpower.comT1GUtgqRH56QHPRq70UGFdwJD

wwww.chin aitpower.comT1GUtgqRH56QHPRq70UGFdwJD

wwww.chin aitpower.comT1GUtgqRH56QHPRq70UGFdwJD
function decode_mime_string ($string) {
wwww.chin aitpower.comT1GUtgqRH56QHPRq70UGFdwJD
$pos = strpos($string, ’=?’);
wwww.chin aitpower.comT1GUtgqRH56QHPRq70UGFdwJD
if (!is_int($pos)) {
wwww.chin aitpower.comT1GUtgqRH56QHPRq70UGFdwJD
return $string;
wwww.chin aitpower.comT1GUtgqRH56QHPRq70UGFdwJD
}
wwww.chin aitpower.comT1GUtgqRH56QHPRq70UGFdwJD

wwww.chin aitpower.comT1GUtgqRH56QHPRq70UGFdwJD
$preceding = substr($string, 0, $pos); // save any preceding text
wwww.chin aitpower.comT1GUtgqRH56QHPRq70UGFdwJD

wwww.chin aitpower.comT1GUtgqRH56QHPRq70UGFdwJD
$search = substr($string, $pos+2, 75); /* the mime header spec says this is the longest a
wwww.chin aitpower.comT1GUtgqRH56QHPRq70UGFdwJD
single encoded word can be */
wwww.chin aitpower.comT1GUtgqRH56QHPRq70UGFdwJD
$d1 = strpos($search, ’?’);
wwww.chin aitpower.comT1GUtgqRH56QHPRq70UGFdwJD
if (!is_int($d1)) {
wwww.chin aitpower.comT1GUtgqRH56QHPRq70UGFdwJD
return $string;
wwww.chin aitpower.comT1GUtgqRH56QHPRq70UGFdwJD
}
wwww.chin aitpower.comT1GUtgqRH56QHPRq70UGFdwJD

wwww.chin aitpower.comT1GUtgqRH56QHPRq70UGFdwJD
$charset = substr($string, $pos+2, $d1);
wwww.chin aitpower.comT1GUtgqRH56QHPRq70UGFdwJD
$search = substr($search, $d1+1);
wwww.chin aitpower.comT1GUtgqRH56QHPRq70UGFdwJD

wwww.chin aitpower.comT1GUtgqRH56QHPRq70UGFdwJD
$d2 = strpos($search, ’?’);
wwww.chin aitpower.comT1GUtgqRH56QHPRq70UGFdwJD
if (!is_int($d2)) {
wwww.chin aitpower.comT1GUtgqRH56QHPRq70UGFdwJD
return $string;
wwww.chin aitpower.comT1GUtgqRH56QHPRq70UGFdwJD
}
wwww.chin aitpower.comT1GUtgqRH56QHPRq70UGFdwJD

wwww.chin aitpower.comT1GUtgqRH56QHPRq70UGFdwJD
$encoding = substr($search, 0, $d2);
wwww.chin aitpower.comT1GUtgqRH56QHPRq70UGFdwJD
$search = substr($search, $d2+1);
wwww.chin aitpower.comT1GUtgqRH56QHPRq70UGFdwJD

wwww.chin aitpower.comT1GUtgqRH56QHPRq70UGFdwJD
$end = strpos($search, ’?=’);
wwww.chin aitpower.comT1GUtgqRH56QHPRq70UGFdwJD
if (!is_int($end)) {
wwww.chin aitpower.comT1GUtgqRH56QHPRq70UGFdwJD
return $string;
wwww.chin aitpower.comT1GUtgqRH56QHPRq70UGFdwJD
}
wwww.chin aitpower.comT1GUtgqRH56QHPRq70UGFdwJD

wwww.chin aitpower.comT1GUtgqRH56QHPRq70UGFdwJD
$encoded_text = substr($search, 0, $end);
wwww.chin aitpower.comT1GUtgqRH56QHPRq70UGFdwJD
$rest = substr($string, (strlen($preceding . $charset . $encoding . $encoded_text)+6));
wwww.chin aitpower.comT1GUtgqRH56QHPRq70UGFdwJD

wwww.chin aitpower.comT1GUtgqRH56QHPRq70UGFdwJD
switch ($encoding) {
wwww.chin aitpower.comT1GUtgqRH56QHPRq70UGFdwJD
case ’Q’:
wwww.chin aitpower.comT1GUtgqRH56QHPRq70UGFdwJD
case ’q’:
wwww.chin aitpower.comT1GUtgqRH56QHPRq70UGFdwJD
$encoded_text = str_replace(’_’, ’%20’, $encoded_text);
wwww.chin aitpower.comT1GUtgqRH56QHPRq70UGFdwJD
$encoded_text = str_replace(’=’, ’%’, $encoded_text);
wwww.chin aitpower.comT1GUtgqRH56QHPRq70UGFdwJD
$decoded = urldecode($encoded_text);
wwww.chin aitpower.comT1GUtgqRH56QHPRq70UGFdwJD

wwww.chin aitpower.comT1GUtgqRH56QHPRq70UGFdwJD
if (strtolower($charset) == ’windows-1251’) {
wwww.chin aitpower.comT1GUtgqRH56QHPRq70UGFdwJD
$decoded = convert_cyr_string($decoded, ’w’, ’k’);
wwww.chin aitpower.comT1GUtgqRH56QHPRq70UGFdwJD
}
wwww.chin aitpower.comT1GUtgqRH56QHPRq70UGFdwJD
break;
wwww.chin aitpower.comT1GUtgqRH56QHPRq70UGFdwJD

wwww.chin aitpower.comT1GUtgqRH56QHPRq70UGFdwJD
case ’B’:
wwww.chin aitpower.comT1GUtgqRH56QHPRq70UGFdwJD
case ’b’:
wwww.chin aitpower.comT1GUtgqRH56QHPRq70UGFdwJD
$decoded = urldecode(base64_decode($encoded_text));
wwww.chin aitpower.comT1GUtgqRH56QHPRq70UGFdwJD

wwww.chin aitpower.comT1GUtgqRH56QHPRq70UGFdwJD
if (strtolower($charset) == ’windows-1251’) {
wwww.chin aitpower.comT1GUtgqRH56QHPRq70UGFdwJD
$decoded = convert_cyr_string($decoded, ’w’, ’k’);
wwww.chin aitpower.comT1GUtgqRH56QHPRq70UGFdwJD
}
wwww.chin aitpower.comT1GUtgqRH56QHPRq70UGFdwJD
break;
wwww.chin aitpower.comT1GUtgqRH56QHPRq70UGFdwJD

wwww.chin aitpower.comT1GUtgqRH56QHPRq70UGFdwJD
default:
wwww.chin aitpower.comT1GUtgqRH56QHPRq70UGFdwJD
$decoded = ’=?’ . $charset . ’?’ . $encoding . ’?’ . $encoded_text . ’?=’;
wwww.chin aitpower.comT1GUtgqRH56QHPRq70UGFdwJD
break;
wwww.chin aitpower.comT1GUtgqRH56QHPRq70UGFdwJD
}
wwww.chin aitpower.comT1GUtgqRH56QHPRq70UGFdwJD

wwww.chin aitpower.comT1GUtgqRH56QHPRq70UGFdwJD
return $preceding . $decoded . decode_mime_string($rest);
wwww.chin aitpower.comT1GUtgqRH56QHPRq70UGFdwJD
} // decode_mime_string()
wwww.chin aitpower.comT1GUtgqRH56QHPRq70UGFdwJD
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