mirror of
https://github.com/netchx/netch.git
synced 2026-03-18 18:13:21 +08:00
522 lines
22 KiB
C#
522 lines
22 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Text.RegularExpressions;
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using System.Web;
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using Netch.Models;
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using Netch.Models.SS;
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using Newtonsoft.Json;
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namespace Netch.Utils
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{
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public static class ShareLink
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{
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/// <summary>
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/// URL 传输安全的 Base64 解码
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/// </summary>
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/// <param name="text">需要解码的字符串</param>
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/// <returns>解码后的字符串</returns>
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public static string URLSafeBase64Decode(string text)
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{
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return Encoding.UTF8.GetString(Convert.FromBase64String(text.Replace("-", "+").Replace("_", "/").PadRight(text.Length + (4 - text.Length % 4) % 4, '=')));
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}
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/// <summary>
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/// URL 传输安全的 Base64 加密
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/// </summary>
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/// <param name="text">需要加密的字符串</param>
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/// <returns>加密后的字符串</returns>
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public static string URLSafeBase64Encode(string text)
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{
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return Convert.ToBase64String(Encoding.UTF8.GetBytes(text)).Replace("-", "+").Replace("_", "/").PadRight(text.Length + (4 - text.Length % 4) % 4, '=');
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}
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/// <summary>
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/// 根据服务器生成分享链接
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/// </summary>
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/// <param name="server">需要获取分享链接的服务器</param>
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/// <returns>解码后的字符串</returns>
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public static string GetShareLink(Models.Server server)
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{
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string retLinkStr = "";
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switch (server.Type)
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{
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case "Socks5":
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// https://t.me/socks?server=1.1.1.1&port=443
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retLinkStr = string.Format("https://t.me/socks?server={0}&port={1}", server.Hostname, server.Port);
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break;
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case "SS":
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// ss://method:password@server:port#Remark
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retLinkStr = "ss://" + URLSafeBase64Encode(string.Format("{0}:{1}@{2}:{3}", server.EncryptMethod, server.Password, server.Hostname, server.Port)) + "#" + HttpUtility.UrlEncode(server.Remark);
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break;
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case "SSR":
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// https://github.com/shadowsocksr-backup/shadowsocks-rss/wiki/SSR-QRcode-scheme
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// ssr://base64(host:port:protocol:method:obfs:base64pass/?obfsparam=base64param&protoparam=base64param&remarks=base64remarks&group=base64group&udpport=0&uot=0)
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string paraStr = string.Format("/?obfsparam={0}&protoparam={1}&remarks={2}", URLSafeBase64Encode(server.OBFSParam), URLSafeBase64Encode(server.ProtocolParam), URLSafeBase64Encode(server.Remark));
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retLinkStr = "ssr://" + URLSafeBase64Encode(string.Format("{0}:{1}:{2}:{3}:{4}:{5}{6}", server.Hostname, server.Port, server.Protocol, server.EncryptMethod, server.OBFS, URLSafeBase64Encode(server.Password), paraStr));
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break;
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case "VMess":
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string vmessJson = Newtonsoft.Json.JsonConvert.SerializeObject(new
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{
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v = "2",
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ps = server.Remark,
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add = server.Hostname,
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port = server.Port,
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id = server.UserID,
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aid = server.AlterID,
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net = server.TransferProtocol,
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type = server.FakeType,
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host = server.Host,
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path = server.Path,
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tls = server.TLSSecure ? "tls" : ""
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});
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retLinkStr = "vmess://" + URLSafeBase64Encode(vmessJson);
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break;
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default:
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return null;
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}
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return retLinkStr;
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}
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public static List<Server> Parse(string text)
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{
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var list = new List<Server>();
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try
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{
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try
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{
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var ssServers = JsonConvert.DeserializeObject<List<ShadowsocksServer>>(text);
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list.AddRange(ssServers.Select(shadowsocksServer => new Server
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{
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Type = "SS",
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Hostname = shadowsocksServer.server,
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Port = shadowsocksServer.server_port,
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EncryptMethod = shadowsocksServer.method,
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Password = shadowsocksServer.password,
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Remark = shadowsocksServer.remarks,
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Plugin = shadowsocksServer.plugin,
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PluginOption = shadowsocksServer.plugin_opts
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}));
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}
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catch (JsonReaderException)
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{
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foreach (var line in text.GetLines())
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{
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var servers = ParseLine(line);
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if (servers != null)
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{
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list.AddRange(servers);
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}
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}
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}
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if (list.Count == 0)
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{
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return null;
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}
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}
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catch (Exception e)
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{
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Logging.Info(e.ToString());
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return null;
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}
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return list;
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}
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private static IEnumerable<Server> ParseLine(string text)
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{
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var list = new List<Server>();
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try
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{
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if (text.StartsWith("tg://socks?") || text.StartsWith("https://t.me/socks?"))
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{
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var data = new Server();
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data.Type = "Socks5";
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var dict = new Dictionary<string, string>();
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foreach (var str in text.Replace("tg://socks?", "").Replace("https://t.me/socks?", "").Split('&'))
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{
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var splited = str.Split('=');
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dict.Add(splited[0], splited[1]);
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}
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if (!dict.ContainsKey("server") || !dict.ContainsKey("port"))
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{
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return null;
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}
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data.Hostname = dict["server"];
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data.Port = int.Parse(dict["port"]);
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if (dict.ContainsKey("user") && !string.IsNullOrWhiteSpace(dict["user"]))
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{
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data.Username = dict["user"];
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}
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if (dict.ContainsKey("pass") && !string.IsNullOrWhiteSpace(dict["pass"]))
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{
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data.Password = dict["pass"];
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}
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list.Add(data);
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}
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else if (text.StartsWith("ss://"))
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{
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var data = new Server();
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data.Type = "SS";
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text = text.Replace("/?", "?");
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try
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{
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if (text.Contains("#"))
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{
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data.Remark = HttpUtility.UrlDecode(text.Split('#')[1]);
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text = text.Split('#')[0];
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}
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if (text.Contains("?"))
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{
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var finder = new Regex(@"^(?<data>.+?)\?(.+)$");
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var match = finder.Match(text);
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if (match.Success)
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{
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var plugins = HttpUtility.UrlDecode(HttpUtility.ParseQueryString(new Uri(text).Query).Get("plugin"));
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if (plugins != null)
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{
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var plugin = plugins.Substring(0, plugins.IndexOf(";", StringComparison.Ordinal));
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var pluginopts = plugins.Substring(plugins.IndexOf(";", StringComparison.Ordinal) + 1);
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if (plugin == "obfs-local" || plugin == "simple-obfs")
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{
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plugin = "simple-obfs";
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if (!pluginopts.Contains("obfs="))
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pluginopts = "obfs=http;obfs-host=" + pluginopts;
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}
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else if (plugin == "simple-obfs-tls")
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{
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plugin = "simple-obfs";
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if (!pluginopts.Contains("obfs="))
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pluginopts = "obfs=tls;obfs-host=" + pluginopts;
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}
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data.Plugin = plugin;
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data.PluginOption = pluginopts;
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}
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text = match.Groups["data"].Value;
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}
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else
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{
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throw new FormatException();
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}
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}
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if (text.Contains("@"))
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{
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var finder = new Regex(@"^ss://(?<base64>.+?)@(?<server>.+):(?<port>\d+)");
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var parser = new Regex(@"^(?<method>.+?):(?<password>.+)$");
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var match = finder.Match(text);
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if (!match.Success)
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{
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throw new FormatException();
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}
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data.Hostname = match.Groups["server"].Value;
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data.Port = int.Parse(match.Groups["port"].Value);
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var base64 = URLSafeBase64Decode(match.Groups["base64"].Value);
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match = parser.Match(base64);
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if (!match.Success)
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{
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throw new FormatException();
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}
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data.EncryptMethod = match.Groups["method"].Value;
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data.Password = match.Groups["password"].Value;
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}
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else
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{
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var parser = new Regex(@"^((?<method>.+?):(?<password>.+)@(?<server>.+):(?<port>\d+))");
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var match = parser.Match(URLSafeBase64Decode(text.Replace("ss://", "")));
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if (!match.Success)
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{
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throw new FormatException();
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}
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data.Hostname = match.Groups["server"].Value;
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data.Port = int.Parse(match.Groups["port"].Value);
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data.EncryptMethod = match.Groups["method"].Value;
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data.Password = match.Groups["password"].Value;
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}
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if (!Global.EncryptMethods.SS.Contains(data.EncryptMethod))
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{
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Logging.Info(string.Format("不支持的 SS 加密方式：{0}", data.EncryptMethod));
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return null;
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}
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list.Add(data);
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}
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catch (FormatException)
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{
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return null;
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}
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}
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else if (text.StartsWith("ssd://"))
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{
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var json = JsonConvert.DeserializeObject<Models.SSD.Main>(URLSafeBase64Decode(text.Substring(6)));
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foreach (var server in json.servers)
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{
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var data = new Server();
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data.Type = "SS";
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data.Remark = server.remarks;
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data.Hostname = server.server;
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data.Port = server.port != 0 ? server.port : json.port;
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data.Password = server.password != null ? server.password : json.password;
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data.EncryptMethod = server.encryption != null ? server.encryption : json.encryption;
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data.Plugin = string.IsNullOrEmpty(json.plugin) ? string.IsNullOrEmpty(server.plugin) ? null : server.plugin : json.plugin;
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data.PluginOption = string.IsNullOrEmpty(json.plugin_options) ? string.IsNullOrEmpty(server.plugin_options) ? null : server.plugin_options : json.plugin_options;
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if (Global.EncryptMethods.SS.Contains(data.EncryptMethod))
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{
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list.Add(data);
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}
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}
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}
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else if (text.StartsWith("ssr://"))
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{
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var data = new Server();
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data.Type = "SSR";
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text = text.Substring(6);
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var parser = new Regex(@"^(?<server>.+):(?<port>(-?\d+?)):(?<protocol>.+?):(?<method>.+?):(?<obfs>.+?):(?<password>.+?)/\?(?<info>.*)$");
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var match = parser.Match(URLSafeBase64Decode(text));
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if (match.Success)
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{
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data.Hostname = match.Groups["server"].Value;
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data.Port = int.Parse(match.Groups["port"].Value);
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if (data.Port < 0)
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{
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data.Port += 65536;
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}
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data.Password = URLSafeBase64Decode(match.Groups["password"].Value);
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data.EncryptMethod = match.Groups["method"].Value;
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if (!Global.EncryptMethods.SSR.Contains(data.EncryptMethod))
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{
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Logging.Info(string.Format("不支持的 SSR 加密方式：{0}", data.EncryptMethod));
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return null;
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}
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data.Protocol = match.Groups["protocol"].Value;
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if (!Global.Protocols.Contains(data.Protocol))
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{
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Logging.Info(string.Format("不支持的 SSR 协议：{0}", data.Protocol));
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return null;
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}
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data.OBFS = match.Groups["obfs"].Value;
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if (data.OBFS == @"tls1.2_ticket_fastauth")
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{
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data.OBFS = @"tls1.2_ticket_auth";
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}
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if (!Global.OBFSs.Contains(data.OBFS))
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{
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Logging.Info(string.Format("不支持的 SSR 混淆：{0}", data.OBFS));
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return null;
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}
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var info = match.Groups["info"].Value;
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var dict = new Dictionary<string, string>();
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foreach (var str in info.Split('&'))
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{
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var splited = str.Split('=');
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dict.Add(splited[0], splited[1]);
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}
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if (dict.ContainsKey("remarks"))
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{
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data.Remark = URLSafeBase64Decode(dict["remarks"]);
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}
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if (dict.ContainsKey("protoparam"))
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{
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data.ProtocolParam = URLSafeBase64Decode(dict["protoparam"]);
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}
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if (dict.ContainsKey("obfsparam"))
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{
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data.OBFSParam = URLSafeBase64Decode(dict["obfsparam"]);
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}
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if (Global.EncryptMethods.SS.Contains(data.EncryptMethod) && data.Protocol == "origin" && data.OBFS == "plain")
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{
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data.OBFS = "";
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data.Type = "SS";
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}
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}
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list.Add(data);
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}
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else if (text.StartsWith("vmess://"))
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{
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var data = new Server();
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data.Type = "VMess";
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text = text.Substring(8);
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var vmess = JsonConvert.DeserializeObject<VMess>(URLSafeBase64Decode(text));
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data.Remark = vmess.ps;
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data.Hostname = vmess.add;
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data.Port = vmess.port;
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data.UserID = vmess.id;
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data.AlterID = vmess.aid;
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data.TransferProtocol = vmess.net;
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if (!Global.TransferProtocols.Contains(data.TransferProtocol))
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{
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Logging.Info(string.Format("不支持的 VMess 传输协议：{0}", data.TransferProtocol));
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return null;
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}
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data.FakeType = vmess.type;
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if (!Global.FakeTypes.Contains(data.FakeType))
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{
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Logging.Info(string.Format("不支持的 VMess 伪装类型：{0}", data.FakeType));
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return null;
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}
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if (vmess.v == null || vmess.v == "1")
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{
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var info = vmess.host.Split(';');
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if (info.Length == 2)
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{
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vmess.host = info[0];
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vmess.path = info[1];
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}
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}
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if (data.TransferProtocol == "quic")
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{
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if (!Global.EncryptMethods.VMessQUIC.Contains(vmess.host))
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{
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Logging.Info(string.Format("不支持的 VMess QUIC 加密方式：{0}", vmess.host));
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return null;
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}
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data.QUICSecure = vmess.host;
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data.QUICSecret = vmess.path;
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}
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else
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{
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data.Host = vmess.host;
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data.Path = vmess.path;
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}
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data.TLSSecure = vmess.tls == "tls";
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if (vmess.mux == null)
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{
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data.UseMux = false;
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}
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else
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{
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if (vmess.mux.enabled is bool enabled)
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{
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data.UseMux = enabled;
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}
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else if (vmess.mux.enabled is string muxEnabled)
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{
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data.UseMux = muxEnabled == "true"; // 针对使用字符串当作布尔值的情况
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}
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else
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{
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data.UseMux = false;
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}
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}
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data.EncryptMethod = "auto"; // V2Ray 加密方式不包括在链接中，主动添加一个
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list.Add(data);
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}
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else if (text.StartsWith("Netch://"))
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{
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text = text.Substring(8);
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var NetchLink = JsonConvert.DeserializeObject<Server>(URLSafeBase64Decode(text));
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if (!string.IsNullOrEmpty(NetchLink.Hostname) || NetchLink.Port > 65536 || NetchLink.Port > 0)
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{
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return null;
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}
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switch (NetchLink.Type)
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{
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case "Socks5":
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list.Add(NetchLink);
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break;
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case "SS":
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if (!Global.EncryptMethods.SS.Contains(NetchLink.EncryptMethod))
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{
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Logging.Info($"不支持的 SS 加密方式：{NetchLink.EncryptMethod}");
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return null;
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}
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break;
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case "SSR":
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if (!Global.EncryptMethods.SSR.Contains(NetchLink.EncryptMethod))
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{
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Logging.Info($"不支持的 SSR 加密方式：{NetchLink.EncryptMethod}");
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return null;
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}
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if (!Global.Protocols.Contains(NetchLink.Protocol))
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{
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Logging.Info($"不支持的 SSR 协议：{NetchLink.Protocol}");
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return null;
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}
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if (!Global.OBFSs.Contains(NetchLink.OBFS))
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{
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Logging.Info($"不支持的 SSR 混淆：{NetchLink.OBFS}");
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return null;
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}
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break;
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case "VMess":
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if (!Global.TransferProtocols.Contains(NetchLink.TransferProtocol))
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{
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Logging.Info($"不支持的 VMess 传输协议：{NetchLink.TransferProtocol}");
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return null;
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}
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if (!Global.FakeTypes.Contains(NetchLink.FakeType))
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{
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Logging.Info($"不支持的 VMess 伪装类型：{NetchLink.FakeType}");
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return null;
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}
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if (NetchLink.TransferProtocol == "quic")
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{
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if (!Global.EncryptMethods.VMessQUIC.Contains(NetchLink.QUICSecure))
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{
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Logging.Info($"不支持的 VMess QUIC 加密方式：{NetchLink.QUICSecure}");
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return null;
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}
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}
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break;
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default:
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return null;
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}
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list.Add(NetchLink);
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}
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}
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catch (Exception e)
|
|
{
|
|
Logging.Info(e.ToString());
|
|
return null;
|
|
}
|
|
|
|
return list;
|
|
}
|
|
}
|
|
}
|