Home » Mail » Mail_Mime » Bug #6726

[2006-02-08 11:19 UTC] vilius dot simonaitis at gmail dot com

Description:
------------
function _encodeHeaders encodes UTF-8 characters and spaces incorectly. In case of more than one non-latin character in one word, ir encodes them incerectly.
It also encodes spaces incorectly.

function _encodeHeaders($input)
{
foreach ($input as $hdr_name => $hdr_value) {
preg_match_all('/((\w*[\x80-\xFF]+\w*)+\s*)/', $hdr_value, $matches);
foreach ($matches[1] as $value) {
$replacement = preg_replace('/([\x80-\xFF])/e',
'"=" .
strtoupper(dechex(ord("\1")))',
$value);
$hdr_value = str_replace($value, '=?' .
$this->_build_params['head_charset'] .
'?Q?' . $replacement . '?=',
$hdr_value);
}
$input[$hdr_name] = $hdr_value;
}

return $input;
}

Test script:
---------------
$string = "Greitas rudas èiukèë ðoka per girtà rusà";
preg_match_all('/((\w*[\x80-\xFF]+\w*)+\s*)/', $string, $matches);

echo "<pre>";
print_r($matches);
echo "</pre>";

Expected result:
----------------
The test should match four whole words together with leading spaces:

Array
(
[0] => Array
(
[0] => èiukèë
[1] => ðoka
[2] => girtà
[3] => rusà
)

[1] => Array
(
[0] => èiukèë
[1] => ðoka
[2] => girtà
[3] => rusà
)

[2] => Array
(
[0] => ?ë
[1] => ðoka
[2] => girtà
[3] => rusà
)

)

Actual result:
--------------
Current preg_match splits the second UTF-8 character into two pieces. This result incorect subject in mail: some character and spaces are dissapearing.

Array
(
[0] => Array
(
[0] => èiukĊ [1] => ?ë
[2] => ðoka
[3] => girtà
[4] => rusà
)

[1] => Array
(
[0] => èiukĊ [1] => ?ë
[2] => ðoka
[3] => girtà
[4] => rusà
)

)