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generate_tripcode() rewrite

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Savetheinternet 2011-12-03 15:11:15 +11:00
parent dbe3302987
commit 95920a6972
1 changed files with 29 additions and 32 deletions
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43
inc/functions.php
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@ -1384,40 +1384,37 @@
return substr(sha1(sha1($ip . $config['secure_trip_salt'] . $thread) . $config['secure_trip_salt']), 0, $config['poster_id_length']);
}
function generate_tripcode($name, $length = 10){
function generate_tripcode($name) {
global $config;
$t = explode('#', $name);
$nameo = $t[0];
if ( isset ( $t[1] ) || isset ( $t[2] ) ) {
$trip = ( ( strlen ( $t[1] ) > 0 ) ? $t[1] : $t[2] );
if ( ( function_exists ( 'mb_convert_encoding' ) ) ) {
// multi-byte encoding is necessary to produce standard tripcode output, but only use it if available
mb_substitute_character('none');
$recoded_cap = mb_convert_encoding ( $trip, 'Shift_JIS', 'UTF-8' );
}
$trip = ( ( ! empty ( $recoded_cap ) ) ? $recoded_cap : $trip );
$salt = substr ( $trip.'H.', 1, 2 );
if(!preg_match('/^([^#]+)?(##|#)(.+)$/', $name, $match))
return Array($name);
$name = $match[1];
$secure = $match[2] == '##';
$trip = $match[3];
// convert to SHIT_JIS encoding
$trip = mb_convert_encoding($trip, 'Shift_JIS', 'UTF-8');
// generate salt
$salt = substr($trip . 'H..', 1, 2);
$salt = preg_replace('/[^\.-z]/', '.', $salt);
$salt = strtr($salt, ':;<=>?@[\]^_`', 'ABCDEFGabcdef');
if ( isset ( $t[2] ) ) {
// secure
if($secure) {
if(isset($config['custom_tripcode']["##{$trip}"]))
$trip = $config['custom_tripcode']["##{$trip}"];
else
$trip = '!!' . substr ( crypt ( $trip, $config['secure_trip_salt'] ), ( -1 * $length ) );
$trip = '!!' . substr(crypt($trip, $config['secure_trip_salt']), -10);
} else {
// insecure
if(isset($config['custom_tripcode']["#{$trip}"]))
$trip = $config['custom_tripcode']["#{$trip}"];
else
$trip = '!' . substr ( crypt ( $trip, $salt ), ( -1 * $length ) );
}
}
if ( isset ( $trip ) ) {
return array ( $nameo, $trip );
} else {
return array ( $nameo );
$trip = '!' . substr(crypt($trip, $salt), -10);
}
return Array($name, $trip);
}
// Highest common factor