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lib/ldap: Use the indefinite form of the length octets for encoded sort rules where appropriate 

I guess we may never need this, but hey :)

refs #9364
This commit is contained in:
Eric Lippmann 2015-09-04 11:58:11 +02:00
parent 9b22b24561
commit 297a4333cd
1 changed files with 30 additions and 10 deletions
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40
library/Icinga/Protocol/Ldap/LdapConnection.php
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@ -936,24 +936,44 @@ class LdapConnection implements Selectable, Inspectable
*/
protected function encodeSortRules(array $sortRules)
{
// TODO(el): Indefinite form of length octet
$sequenceOf = '';
foreach ($sortRules as $rule) {
$reversed = '0101' . ($rule[1] === Sortable::SORT_DESC ? 'ff' : '00');
if (false && $rule[1] === Sortable::SORT_DESC) {
$reversed = '0101ff';
} else {
$reversed = '';
}
$attributeType = unpack('H*', $rule[0]);
$attributeType = $attributeType[1];
$attributeType = '04' . str_pad(dechex(strlen($attributeType) / 2), 2, '0', STR_PAD_LEFT) . $attributeType;
$sequence = '30'
. str_pad(dechex(strlen($attributeType . $reversed) / 2), 2, '0', STR_PAD_LEFT)
. $attributeType
. $reversed;
$attributeOctets = strlen($attributeType) / 2;
if ($attributeOctets >= 127) {
// Use the indefinite form of the length octets (the long form would be another option)
$attributeType = '0440' . $attributeType . '0000';
} else {
$attributeType = '04' . str_pad(dechex($attributeOctets), 2, '0', STR_PAD_LEFT) . $attributeType;
}
$sequence = $attributeType . $reversed;
$sequenceOctects = strlen($sequence) / 2;
if ($sequenceOctects >= 127) {
$sequence = '3040' . $sequence . '0000';
} else {
$sequence = '30' . str_pad(dechex($sequenceOctects), 2, '0', STR_PAD_LEFT) . $sequence;
}
$sequenceOf .= $sequence;
}
$sequenceOf = '30'
. str_pad(dechex(strlen($sequenceOf) / 2), 2, '0', STR_PAD_LEFT)
. $sequenceOf;
$sequenceOfOctets = strlen($sequenceOf) / 2;
if ($sequenceOfOctets >= 127) {
$sequenceOf = '3040' . $sequenceOf . '0000';
} else {
$sequenceOf = '30' . str_pad(dechex($sequenceOfOctets), 2, '0', STR_PAD_LEFT) . $sequenceOf;
}
return hex2bin($sequenceOf);
}