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Program.cs
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using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Net;
using System.Net.Http;
using System.Net.Http.Headers;
using System.Net.Sockets;
using System.Numerics;
using System.Text;
using System.Text.RegularExpressions;
namespace china_ip_list
{
class Program
{
public static string chn_ip = "", chnroute = "", chn_ip_v6 = "", chnroute_v6 = "";
static void Main(string[] args)
{
string apnic_ip = GetResponse("http://ftp.apnic.net/apnic/stats/apnic/delegated-apnic-latest");
//string apnic_ip = "apnic|IN|ipv4|103.16.104.0|1024|20130205|allocated\napnic|CN|ipv4|103.16.108.0|65536|20130205|allocated\napnic|ID|ipv4|103.16.112.0|1024|20130205|assigned\napnic|BN|ipv4|103.16.120.0|1024|20130206|assigned\napnic|CN|ipv4|103.16.124.0|1024|20130206|allocated\napnic|AU|ipv4|103.16.128.0|1024|20130206|allocated\napnic|ID|ipv4|103.16.132.0|512|20130206|assigned\n";
string[] ip_list = apnic_ip.Split(new string[] { "\n" }, StringSplitOptions.None);
int i = 1;
int i_ip6 = 1;
string save_txt_path = AppContext.BaseDirectory;
foreach (string per_ip in ip_list)
{
//处理IPV4部分
if (per_ip.Contains("CN|ipv4|"))
{
string[] ip_information = per_ip.Split('|');
string ip = ip_information[3];
string ip_mask = Convert.ToString(32 - (Math.Log(Convert.ToInt32(ip_information[4])) / Math.Log(2)));
string end_ip = IntToIp(IpToInt(ip) + Convert.ToUInt32(ip_information[4]) - 1); //减掉广播地址
chnroute += ip + "/" + ip_mask + "\n";
chn_ip += ip + " " + end_ip + "\n";
i++;
}
//处理IPV6部分
if (per_ip.Contains("CN|ipv6|"))
{
string[] ip_information_v6 = per_ip.Split('|');
string ip_v6 = ip_information_v6[3];
string ip_mask_v6 = Convert.ToString(ip_information_v6[4]);
string end_ip_v6 = CalculateEndIPv6Address(ip_information_v6[3], Convert.ToInt32(ip_information_v6[4])); //减掉广播地址
chnroute_v6 += ip_v6 + "/" + ip_mask_v6 + "\n";
chn_ip_v6 += ip_v6 + " " + end_ip_v6 + "\n";
i_ip6++;
}
}
////Console.Write(chnroute);
////Console.Write(chn_ip);
File.WriteAllText(save_txt_path + "chnroute.txt", chnroute);
File.WriteAllText(save_txt_path + "chn_ip.txt", chn_ip);
Console.WriteLine("本次共获取" + i + "条CN IPv4的记录，文件保存于" + save_txt_path + "chn_ip.txt");
File.WriteAllText(save_txt_path + "chnroute_v6.txt", chnroute_v6);
File.WriteAllText(save_txt_path + "chn_ip_v6.txt", chn_ip_v6);
Console.WriteLine("本次共获取" + i_ip6 + "条CN IPv6的记录，文件保存于" + save_txt_path + "chn_ip_v6.txt");
}
private static string GetResponse(string url)
{
if (url.StartsWith("https"))
{
ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls;
}
var httpClient = new HttpClient();
httpClient.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
HttpResponseMessage response = httpClient.GetAsync(url).Result;
if (response.IsSuccessStatusCode)
{
string result = response.Content.ReadAsStringAsync().Result;
return result;
}
return null;
}
private static uint IpToInt(string ipStr)
{
string[] ip = ipStr.Split('.');
uint ipcode = 0xFFFFFF00 | byte.Parse(ip[3]);
ipcode = ipcode & 0xFFFF00FF | (uint.Parse(ip[2]) << 0x08);
ipcode = ipcode & 0xFF00FFFF | (uint.Parse(ip[1]) << 0x10);
ipcode = ipcode & 0x00FFFFFF | (uint.Parse(ip[0]) << 0x18);
return ipcode;
}
private static string IntToIp(uint ipcode)
{
byte addr1 = (byte)((ipcode & 0xFF000000) >> 0x18);
byte addr2 = (byte)((ipcode & 0x00FF0000) >> 0x10);
byte addr3 = (byte)((ipcode & 0x0000FF00) >> 0x08);
byte addr4 = (byte)(ipcode & 0x000000FF);
return string.Format("{0}.{1}.{2}.{3}", addr1, addr2, addr3, addr4);
}
private static BigInteger IpV6ToInt(string ipStr)
{
IPAddress ip = IPAddress.Parse(ipStr);
List<Byte> ipFormat = ip.GetAddressBytes().ToList();
ipFormat.Reverse();
ipFormat.Add(0);
BigInteger ipv6AsInt = new BigInteger(ipFormat.ToArray());
return ipv6AsInt;
}
private static string DecimalToIpv6(BigInteger decimalValue)
{
string hexString = decimalValue.ToString("X");
string paddedHexString = hexString.PadLeft(32, '0');
string ipv6 = "";
for (int i = 0; i < paddedHexString.Length; i += 4)
{
ipv6 += paddedHexString.Substring(i, 4) + ":";
}
// 移除最后一个冒号
ipv6 = ipv6.TrimEnd(':');
return SimplifyIpv6Address(ipv6.ToLower());
}
private static string SimplifyIpv6Address(string ipv6)
{
// 使用正则表达式进行匹配和替换
string pattern = @"(?<![:\w])(?:0+:?){2,}(?![:\w])|(?:ffff:ffff(:?0+)?)+";
string replacement = "::";
string simplifiedIpAddress = Regex.Replace(ipv6, pattern, replacement);
return simplifiedIpAddress.Replace(":0", ":");
}
public static string CalculateEndIPv6Address(string startIpAddress, int networkLength)
{
IPAddress ipAddress = IPAddress.Parse(startIpAddress);
byte[] addressBytes = ipAddress.GetAddressBytes();
int totalBits = IPAddress.IPv6Loopback.AddressFamily == AddressFamily.InterNetworkV6 ? 128 : 32;
int subnetBits = totalBits - networkLength;
BigInteger startAddress = (BigInteger)IpV6ToInt(startIpAddress);
BigInteger endAddress = startAddress + (BigInteger.One << subnetBits) - BigInteger.One;
byte[] endAddressBytes = endAddress.ToByteArray();
Array.Reverse(endAddressBytes);
return new IPAddress(endAddressBytes).ToString();
}
}
}