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user_mail_encode() fixes: 

- Made sure the chunk sizes always include groupings of 4 bytes.
- Added more comments so fixes are not lost in future changes.
4.3.x
Kjartan Mannes 2003-10-04 12:59:46 +00:00
parent 988da0f136
commit 934938c486
2 changed files with 22 additions and 4 deletions
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13
modules/user.module
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@ -334,9 +334,18 @@ function user_mail_encode($string, $charset = "UTF-8") {
** Used to encodes mail headers that contain non US- ASCII
** characters.
** http://www.rfc-editor.org/rfc/rfc2047.txt
**
** Notes:
** - The chunks come in groupings of 4 bytes when using base64
** encoded.
** - trim() is used to ensure that no extra spacing is added by
** chunk_split() or preg_replace().
** - Using \n as the chunk separator may cause problems on some
** systems and may have to be changed to \r\n or \r.
*/
$maxlen = 75 - 7 - strlen($charset);
$string = trim(chunk_split(base64_encode($string), $maxlen, "\n"));
$chunk_size = 75 - 7 - strlen($charset);
$chunk_size -= $chunk_size % 4;
$string = trim(chunk_split(base64_encode($string), $chunk_size, "\n"));
$string = trim(preg_replace('/^(.*)$/m', " =?$charset?B?\\1?=", $string));
return $string;
}

13
modules/user/user.module
View File

@ -334,9 +334,18 @@ function user_mail_encode($string, $charset = "UTF-8") {
** Used to encodes mail headers that contain non US- ASCII
** characters.
** http://www.rfc-editor.org/rfc/rfc2047.txt
**
** Notes:
** - The chunks come in groupings of 4 bytes when using base64
** encoded.
** - trim() is used to ensure that no extra spacing is added by
** chunk_split() or preg_replace().
** - Using \n as the chunk separator may cause problems on some
** systems and may have to be changed to \r\n or \r.
*/
$maxlen = 75 - 7 - strlen($charset);
$string = trim(chunk_split(base64_encode($string), $maxlen, "\n"));
$chunk_size = 75 - 7 - strlen($charset);
$chunk_size -= $chunk_size % 4;
$string = trim(chunk_split(base64_encode($string), $chunk_size, "\n"));
$string = trim(preg_replace('/^(.*)$/m', " =?$charset?B?\\1?=", $string));
return $string;
}