1 module hunt.net.secure.conscrypt.AddressUtils; 2 3 import hunt.text.Common; 4 import hunt.text.Pattern; 5 6 /** 7 * Utilities to check whether IP addresses meet some criteria. 8 */ 9 final class AddressUtils { 10 /* 11 * Regex that matches valid IPv4 and IPv6 addresses. 12 */ 13 private enum string IP_PATTERN = "^(?:(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9]?[0-9])\\.){3}(?:25[0-5]|2[0-4][0-9]|" 14 ~ "[01]?[0-9]?[0-9]))|(?i:(?:(?:[0-9a-f]{1,4}:){7}(?:[0-9a-f]{1,4}|:))|(?:(?:[0-9a-f]{1,4}:){6}(?::[0-9a-f]{1,4}|" 15 ~ "(?:(?:25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[1-9]?[0-9])(?:\\.(?:25[0-5]|2[0-4][0-9]|1[0-9][0-9]|" 16 ~ "[1-9]?[0-9])){3})|:))|(?:(?:[0-9a-f]{1,4}:){5}(?:(?:(?::[0-9a-f]{1,4}){1,2})|:(?:(?:25[0-5]|" 17 ~ "2[0-4][0-9]|1[0-9][0-9]|[1-9]?[0-9])(?:\\.(?:25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[1-9]?[0-9])){3})|:))|" 18 ~ "(?:(?:[0-9a-f]{1,4}:){4}(?:(?:(?::[0-9a-f]{1,4}){1,3})|(?:(?::[0-9a-f]{1,4})?:(?:(?:25[0-5]|" 19 ~ "2[0-4][0-9]|1[0-9][0-9]|[1-9]?[0-9])(?:\\.(?:25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[1-9]?[0-9])){3}))|:))|" 20 ~ "(?:(?:[0-9a-f]{1,4}:){3}(?:(?:(?::[0-9a-f]{1,4}){1,4})|(?:(?::[0-9a-f]{1,4}){0,2}:(?:(?:25[0-5]|" 21 ~ "2[0-4][0-9]|1[0-9][0-9]|[1-9]?[0-9])(?:\\.(?:25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[1-9]?[0-9])){3}))|:))|" 22 ~ "(?:(?:[0-9a-f]{1,4}:){2}(?:(?:(?::[0-9a-f]{1,4}){1,5})|(?:(?::[0-9a-f]{1,4}){0,3}:(?:(?:25[0-5]|" 23 ~ "2[0-4][0-9]|1[0-9][0-9]|[1-9]?[0-9])(?:\\.(?:25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[1-9]?[0-9])){3}))|" 24 ~ ":))|(?:(?:[0-9a-f]{1,4}:){1}(?:(?:(?::[0-9a-f]{1,4}){1,6})|(?:(?::[0-9a-f]{1,4}){0,4}:(?:(?:25[0-5]|" 25 ~ "2[0-4][0-9]|1[0-9][0-9]|[1-9]?[0-9])(?:\\.(?:25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[1-9]?[0-9])){3}))|:))|" 26 ~ "(?::(?:(?:(?::[0-9a-f]{1,4}){1,7})|(?:(?::[0-9a-f]{1,4}){0,5}:(?:(?:25[0-5]|2[0-4][0-9]|1[0-9][0-9]|" 27 ~ "[1-9]?[0-9])(?:\\.(?:25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[1-9]?[0-9])){3}))|:)))$"; 28 29 private static Pattern ipPattern; 30 31 private this() {} 32 33 /** 34 * Returns true when the supplied hostname is valid for SNI purposes. 35 */ 36 static bool isValidSniHostname(string sniHostname) { 37 if (sniHostname is null) { 38 return false; 39 } 40 41 // TODO: Tasks pending completion -@zxp at 8/3/2018, 11:41:38 AM 42 // 43 return true; 44 45 // Must be a FQDN that does not have a trailing dot. 46 // return (sniHostname.equalsIgnoreCase("localhost") 47 // || sniHostname.indexOf('.') != -1) 48 // // && !Platform.isLiteralIpAddress(sniHostname) 49 // && !sniHostname.endsWith(".") 50 // && sniHostname.indexOf('\0') == -1; 51 } 52 53 /** 54 * Returns true if the supplied hostname is an literal IP address. 55 */ 56 // static bool isLiteralIpAddress(string hostname) { 57 // /* This is here for backwards compatibility for pre-Honeycomb devices. */ 58 // Pattern ipPattern = AddressUtils.ipPattern; 59 // if (ipPattern is null) { 60 // AddressUtils.ipPattern = ipPattern = Pattern.compile(IP_PATTERN); 61 // } 62 // return ipPattern.matcher(hostname).matches(); 63 // } 64 } 65