/**
* Return a random row from a database query
*
* @param $query
* @param $limit
* @return string
*/
function oos_random_select($query, $limit = '')
{
// Get database information
$dbconn =& oosDBGetConn();
$oostable =& oosDBGetTables();
$random_product = '';
if (!empty($limit)) {
if (USE_DB_CACHE == '1') {
$random_result = $dbconn->CacheSelectLimit(15, $query, $limit);
} else {
$random_result = $dbconn->SelectLimit($query, $limit);
}
} else {
if (USE_DB_CACHE == '1') {
$random_result = $dbconn->CacheExecute(15, $query);
} else {
$random_result = $dbconn->Execute($query);
}
}
$num_rows = $random_result->RecordCount();
if ($num_rows > 0) {
$random_row = oos_rand(0, ($num_rows - 1));
$random_result->Move($random_row);
$random_product = $random_result->fields;
}
return $random_product;
}
/**
* This function makes a new password from a plaintext password.
*
* @param $sPlain
* @return string
*/
function oos_encrypt_password($sPlain)
{
$sPassword = '';
for ($i = 0; $i < 10; $i++) {
$sPassword .= oos_rand();
}
$sSalt = substr(md5($sPassword), 0, 2);
$sPassword = md5($sSalt . $sPlain) . ':' . $sSalt;
return $sPassword;
}
/**
* Returns a random name, 16 to 20 characters long
* There are more than 10^28 combinations
* The directory is "hidden", i.e. starts with '.'
*
* @return string
*/
function oos_random_name()
{
$letters = 'abcdefghijklmnopqrstuvwxyz';
$dirname = '.';
$length = floor(oos_rand(16, 20));
for ($i = 1; $i <= $length; $i++) {
$q = floor(oos_rand(1, 26));
$dirname .= $letters[$q];
}
return $dirname;
}
function oos_create_random_value($length, $type = 'mixed') {
if ( ($type != 'mixed') && ($type != 'chars') && ($type != 'digits')) return false;
$rand_value = '';
while (strlen($rand_value) < $length) {
if ($type == 'digits') {
$char = oos_rand(0,9);
} else {
$char = chr(oos_rand(0,255));
}
if ($type == 'mixed') {
if (preg_match('!^[a-z0-9]$!', $char)) $rand_value .= $char;
} elseif ($type == 'chars') {
if (preg_match('!^[a-z]$!', $char)) $rand_value .= $char;
} elseif ($type == 'digits') {
if (preg_match('!^[0-9]$!', $char)) $rand_value .= $char;
}
}
return $rand_value;
}
