101 lines
3.6 KiB
C#
101 lines
3.6 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Text;
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using System.Net;
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using System.IO;
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using Shadowsocks.Properties;
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using SimpleJson;
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using Shadowsocks.Util;
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using Shadowsocks.Model;
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namespace Shadowsocks.Controller
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{
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public class GFWListUpdater
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{
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private const string GFWLIST_URL = "https://raw.githubusercontent.com/gfwlist/gfwlist/master/gfwlist.txt";
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private static string PAC_FILE = PACServer.PAC_FILE;
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private static string USER_RULE_FILE = PACServer.USER_RULE_FILE;
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public event EventHandler<ResultEventArgs> UpdateCompleted;
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public event ErrorEventHandler Error;
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public class ResultEventArgs : EventArgs
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{
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public bool Success;
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public ResultEventArgs(bool success)
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{
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this.Success = success;
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}
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}
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private void http_DownloadStringCompleted(object sender, DownloadStringCompletedEventArgs e)
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{
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try
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{
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List<string> lines = ParseResult(e.Result);
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if (File.Exists(USER_RULE_FILE))
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{
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string local = File.ReadAllText(USER_RULE_FILE, Encoding.UTF8);
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string[] rules = local.Split(new char[] { '\r', '\n' }, StringSplitOptions.RemoveEmptyEntries);
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foreach(string rule in rules)
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{
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if (rule.StartsWith("!") || rule.StartsWith("["))
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continue;
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lines.Add(rule);
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}
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}
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string abpContent = Utils.UnGzip(Resources.abp_js);
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abpContent = abpContent.Replace("__RULES__", SimpleJson.SimpleJson.SerializeObject(lines));
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if (File.Exists(PAC_FILE))
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{
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string original = File.ReadAllText(PAC_FILE, Encoding.UTF8);
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if (original == abpContent)
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{
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UpdateCompleted(this, new ResultEventArgs(false));
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return;
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}
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}
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File.WriteAllText(PAC_FILE, abpContent, Encoding.UTF8);
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if (UpdateCompleted != null)
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{
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UpdateCompleted(this, new ResultEventArgs(true));
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}
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}
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catch (Exception ex)
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{
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if (Error != null)
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{
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Error(this, new ErrorEventArgs(ex));
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}
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}
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}
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public void UpdatePACFromGFWList(Configuration config)
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{
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WebClient http = new WebClient();
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http.Proxy = new WebProxy(IPAddress.Loopback.ToString(), config.localPort);
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http.DownloadStringCompleted += http_DownloadStringCompleted;
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http.DownloadStringAsync(new Uri(GFWLIST_URL));
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}
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public List<string> ParseResult(string response)
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{
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byte[] bytes = Convert.FromBase64String(response);
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string content = Encoding.ASCII.GetString(bytes);
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string[] lines = content.Split(new char[] { '\r', '\n' }, StringSplitOptions.RemoveEmptyEntries);
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List<string> valid_lines = new List<string>(lines.Length);
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foreach (string line in lines)
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{
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if (line.StartsWith("!") || line.StartsWith("["))
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continue;
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valid_lines.Add(line);
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}
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return valid_lines;
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}
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}
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}
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