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Némunaire 2013-10-09 15:40:23 +02:00
commit 998d011cd3
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109
onyx/require/str.php Normal file
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<?php
function hexstr($var)
{
return pack('H*',$var);
}
function strhex($var)
{
$tab = unpack('H*',$var);
return $tab[1];
}
function bitstr($var)
{
$r = NULL;
for($i = 0; $i < strlen($var); $i += 8) $r .= chr(bindec(substr($var,$i,8)));
return $r;
}
function bithex($var)
{
$r = NULL;
for($i = 0; $i < strlen($var); $i += 4) $r .= base_convert(substr($var,$i,4),2,16);
return $r;
}
if (!function_exists('hex2bin'))
{
function hex2bin($str)
{
$bin = "";
$i = 0;
do
{
$bin .= chr(hexdec($str{$i}.$str{($i + 1)}));
$i += 2;
}
while ($i < strlen($str));
return $bin;
}
}
function cxor($msg,$cle)
{
$xor = NULL;
for($i = 0; $i < strlen($msg);$i++) $xor .= substr($msg,$i,1) ^ substr($cle,$i % strlen($cle),1);
return $xor;
}
function random($l=128)
{
$r = NULL;
for($i = 1;$i <= $l/128 && $l/128 <= 32; $i++)
{
$var = time().microtime().mt_rand().md5(time()).md5(microtime()).md5(mt_rand()).sha1(time()).sha1(microtime()).sha1(mt_rand());
$r .= md5(cxor(md5($var,TRUE),sha1($var,TRUE)));
}
return $r;
}
function uniquehash($var,$length=128,$raw=FALSE)
{
$hashs = array('tiger192,4','haval256,5','md5','snefru','gost','ripemd160','whirlpool');
$r = hash('sha512',$var,TRUE);
foreach($hashs as $algo) $r = cxor(strrev($r),hash($algo,strrev($r),TRUE));
if($length % 8 == 0 && $length >=128 && $length <= 512) $r = substr($r,0,$length/8);
if(!$raw) $r = strhex($r);
return $r;
}
function temphash($var,$length=128,$raw=FALSE)
{
if(!$val = Cache::read('_temphash')) Cache::set('_temphash',$val = hexstr(random()));
return uniquehash(cxor($var,$val),$length,$raw);
}
function decode_ip($int_ip)
{
return inet_ntop(hex2bin($int_ip));
}
function encode_ip($ip=FALSE)
{
if(!$ip)
$ip = $_SERVER['REMOTE_ADDR'];
return bin2hex(inet_pton($ip));
}
function url($string,$external=FALSE)
{
if($external) return htmlspecialchars($string);
global $VAR;
if(!empty($VAR['rewrite_url']))
{
$masque = $VAR['rewrite_url']['masque'];
$replace = $VAR['rewrite_url']['replace'];
$var = preg_replace($masque,$replace,$string);
return htmlspecialchars($var);
}
else return htmlspecialchars($string);
}
?>