- }
-
- // Get the hostname from the Host header or server config.
- $host = '';
- if (isset($HTTP_HOST) && !empty($HTTP_HOST))
- {
- $host = $HTTP_HOST;
- }
- else if (isset($SERVER_NAME) && !empty($SERVER_NAME))
- {
- $host = $SERVER_NAME;
- }
-
- $port = '';
- if (! strstr($host, ':'))
- {
- if (isset($SERVER_PORT)) {
- if (($SERVER_PORT != 80 && $proto == 'http://')
- || ($SERVER_PORT != 443 && $proto == 'https://')) {
- $port = sprintf(':%d', $SERVER_PORT);
- }
- }
- }
-
- if ($host)
- return $proto . $host . $port . $path;
-
- // Fallback is to omit the server name and use a relative URI,
- // although this is not RFC 2616 compliant.
- return $path;
- }
-
- function sqStripSlashes($string) {
- if (get_magic_quotes_gpc()) {
- $string = stripslashes($string);
- }
- return $string;
- }
-
-
- // These functions are used to encrypt the passowrd before it is
- // stored in a cookie.
- function OneTimePadEncrypt ($string, $epad) {
- $pad = base64_decode($epad);
- $encrypted = '';
- for ($i = 0; $i < strlen ($string); $i++) {
- $encrypted .= chr (ord($string[$i]) ^ ord($pad[$i]));
- }
-
- return base64_encode($encrypted);
- }
-
- function OneTimePadDecrypt ($string, $epad) {
- $pad = base64_decode($epad);
- $encrypted = base64_decode ($string);
- $decrypted = '';
- for ($i = 0; $i < strlen ($encrypted); $i++) {
- $decrypted .= chr (ord($encrypted[$i]) ^ ord($pad[$i]));
- }
-
- return $decrypted;
- }
-
-
- // Randomize the mt_rand() function. Toss this in strings or
- // integers and it will seed the generator appropriately.
- // With strings, it is better to get them long. Use md5() to
- // lengthen smaller strings.
- function sq_mt_seed($Val)
- {
- // if mt_getrandmax() does not return a 2^n - 1 number,
- // this might not work well. This uses $Max as a bitmask.
- $Max = mt_getrandmax();
-
- if (! is_int($Val))
- {
- if (function_exists('crc32'))
- {
- $Val = crc32($Val);
- }
- else
- {
- $Str = $Val;
- $Pos = 0;
- $Val = 0;
- $Mask = $Max / 2;
- $HighBit = $Max ^ $Mask;
- while ($Pos < strlen($Str))
- {
- if ($Val & $HighBit)
- {
- $Val = (($Val & $Mask) << 1) + 1;
- }
- else
- {
- $Val = ($Val & $Mask) << 1;
- }
- $Val ^= $Str[$Pos];
- $Pos ++;
- }
- }
- }
-
- if ($Val < 0)
- $Val *= -1;
- if ($Val = 0)
- return;
-
- mt_srand(($Val ^ mt_rand(0, $Max)) & $Max);
- }
-
-
- // This function initializes the random number generator fairly well.
- // It also only initializes it once, so you don't accidentally get
- // the same 'random' numbers twice in one session.
- function sq_mt_randomize()
- {
- global $REMOTE_PORT, $REMOTE_ADDR, $UNIQUE_ID;
- static $randomized;
-
- if ($randomized)
- return;
-
- // Global
- sq_mt_seed((int)((double) microtime() * 1000000));
- sq_mt_seed(md5($REMOTE_PORT . $REMOTE_ADDR . getmypid()));
-
- // getrusage
- if (function_exists('getrusage')) {
- $dat = getrusage();
- $Str = '';
- foreach ($dat as $k => $v)
- {
- $Str .= $k . $v;
- }
- sq_mt_seed(md5($Str));
- }
-
- // Apache-specific
- sq_mt_seed(md5($UNIQUE_ID));
-
- $randomized = 1;
- }
-
- function OneTimePadCreate ($length=100) {
- sq_mt_randomize();
-
- $pad = '';
- for ($i = 0; $i < $length; $i++) {
- $pad .= chr(mt_rand(0,255));
- }
-
- return base64_encode($pad);
- }
-
- // Check if we have a required PHP-version. Return TRUE if we do,
- // or FALSE if we don't.
- // To check for 4.0.1, use sqCheckPHPVersion(4,0,1)
- // To check for 4.0b3, use sqCheckPHPVersion(4,0,-3)
- // Does not handle betas like 4.0.1b1 or development versions
- function sqCheckPHPVersion($major, $minor, $release) {
-
- $ver = phpversion();
- eregi('^([0-9]+)\\.([0-9]+)(.*)', $ver, $regs);
-
- // Parse the version string
- $vmajor = strval($regs[1]);
- $vminor = strval($regs[2]);
- $vrel = $regs[3];
- if($vrel[0] == ".")
- $vrel = strval(substr($vrel, 1));
- if($vrel[0] == 'b' || $vrel[0] == 'B')
- $vrel = - strval(substr($vrel, 1));
- if($vrel[0] == 'r' || $vrel[0] == 'R')
- $vrel = - strval(substr($vrel, 2))/10;
-
- // Compare major version
- if($vmajor < $major) return false;
- if($vmajor > $major) return true;