$max))) return FALSE; return $string; } } // sanitize a string in prep for passing a single argument to system() (or similar) if (!function_exists('sanitize_system_string')) { function sanitize_system_string($string, $min='', $max='') { $pattern = '/(;|\||`|>|<|&|^|"|'."\n|\r|'".'|{|}|[|]|\)|\()/i'; // no piping, passing possible environment variables ($), // seperate commands, nested execution, file redirection, // background processing, special commands (backspace, etc.), quotes // newlines, or some other special characters $string = preg_replace($pattern, '', $string); $string = '"'.preg_replace('/\$/', '\\\$', $string).'"'; //make sure this is only interpretted as ONE argument $len = strlen($string); if((($min != '') && ($len < $min)) || (($max != '') && ($len > $max))) return FALSE; return $string; } } // sanitize a string for SQL input (simple slash out quotes and slashes) if (!function_exists('sanitize_sql_string')) { function sanitize_sql_string($string, $min='', $max='') { $string = nice_addslashes($string); //gz $pattern = "/;/"; // jp $replacement = ""; $len = strlen($string); if((($min != '') && ($len < $min)) || (($max != '') && ($len > $max))) return FALSE; return preg_replace($pattern, $replacement, $string); } } // sanitize a string for SQL input (simple slash out quotes and slashes) if (!function_exists('sanitize_ldap_string')) { function sanitize_ldap_string($string, $min='', $max='') { $pattern = '/(\)|\(|\||&)/'; $len = strlen($string); if((($min != '') && ($len < $min)) || (($max != '') && ($len > $max))) return FALSE; return preg_replace($pattern, '', $string); } } // sanitize a string for HTML (make sure nothing gets interpretted!) if (!function_exists('sanitize_html_string')) { function sanitize_html_string($string) { $pattern[0] = '/\&/'; $pattern[1] = '//"; $pattern[3] = '/\n/'; $pattern[4] = '/"/'; $pattern[5] = "/'/"; $pattern[6] = "/%/"; $pattern[7] = '/\(/'; $pattern[8] = '/\)/'; $pattern[9] = '/\+/'; $pattern[10] = '/-/'; $replacement[0] = '&'; $replacement[1] = '<'; $replacement[2] = '>'; $replacement[3] = '
'; $replacement[4] = '"'; $replacement[5] = '''; $replacement[6] = '%'; $replacement[7] = '('; $replacement[8] = ')'; $replacement[9] = '+'; $replacement[10] = '-'; return preg_replace($pattern, $replacement, $string); } } // make int int! if (!function_exists('sanitize_int')) { function sanitize_int($integer, $min='', $max='') { $int = intval($integer); if((($min != '') && ($int < $min)) || (($max != '') && ($int > $max))) return FALSE; return $int; } } // make float float! if (!function_exists('sanitize_float')) { function sanitize_float($float, $min='', $max='') { $float = floatval($float); if((($min != '') && ($float < $min)) || (($max != '') && ($float > $max))) return FALSE; return $float; } } // glue together all the other functions if (!function_exists('sanitize')) { function sanitize($input, $flags, $min='', $max='') { if($flags & UTF8) $input = my_utf8_decode($input); if($flags & PARANOID) $input = sanitize_paranoid_string($input, $min, $max); if($flags & INT) $input = sanitize_int($input, $min, $max); if($flags & FLOAT) $input = sanitize_float($input, $min, $max); if($flags & HTML) $input = sanitize_html_string($input, $min, $max); if($flags & SQL) $input = sanitize_sql_string($input, $min, $max); if($flags & LDAP) $input = sanitize_ldap_string($input, $min, $max); if($flags & SYSTEM) $input = sanitize_system_string($input, $min, $max); return $input; } } if (!function_exists('check_paranoid_string')) { function check_paranoid_string($input, $min='', $max='') { if($input != sanitize_paranoid_string($input, $min, $max)) return FALSE; return TRUE; } } if (!function_exists('check_int')) { function check_int($input, $min='', $max='') { if($input != sanitize_int($input, $min, $max)) return FALSE; return TRUE; } } if (!function_exists('check_float')) { function check_float($input, $min='', $max='') { if($input != sanitize_float($input, $min, $max)) return FALSE; return TRUE; } } if (!function_exists('check_html_string')) { function check_html_string($input, $min='', $max='') { if($input != sanitize_html_string($input, $min, $max)) return FALSE; return TRUE; } } if (!function_exists('check_sql_string')) { function check_sql_string($input, $min='', $max='') { if($input != sanitize_sql_string($input, $min, $max)) return FALSE; return TRUE; } } if (!function_exists('check_ldap_string')) { function check_ldap_string($input, $min='', $max='') { if($input != sanitize_string($input, $min, $max)) return FALSE; return TRUE; } } if (!function_exists('check_system_string')) { function check_system_string($input, $min='', $max='') { if($input != sanitize_system_string($input, $min, $max, TRUE)) return FALSE; return TRUE; } } // glue together all the other functions if (!function_exists('check')) { function check($input, $flags, $min='', $max='') { $oldput = $input; if($flags & UTF8) $input = my_utf8_decode($input); if($flags & PARANOID) $input = sanitize_paranoid_string($input, $min, $max); if($flags & INT) $input = sanitize_int($input, $min, $max); if($flags & FLOAT) $input = sanitize_float($input, $min, $max); if($flags & HTML) $input = sanitize_html_string($input, $min, $max); if($flags & SQL) $input = sanitize_sql_string($input, $min, $max); if($flags & LDAP) $input = sanitize_ldap_string($input, $min, $max); if($flags & SYSTEM) $input = sanitize_system_string($input, $min, $max, TRUE); if($input != $oldput) return FALSE; return TRUE; } } ?> New York, San Francisco, Miami, Los Angeles, Free Wifi hotspots in New York, San Francisco, Miami, Los Angeles find internet access, hot spots, maps, and listings :: Free-Wifi.com

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