using Shared;
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using Shared.SimpleControl;
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using System;
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namespace SmartHome
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{
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public class SystemRemote
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{
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string txtCheckInternet = "请检查网络连接.";
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string txtLinkSeverLoser = "远程连接与服务器通讯失败。";
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string txtRemoteDevicesHaveNoReply = "一端口无响应。";
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string txtPwdError = "密码错误。";
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string txtLinkNotExist = "连接信息错误。";
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public SystemRemote ()
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{
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if (Language.CurrentLanguage != "Chinese") {
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txtCheckInternet = "Please check your network connection.";
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txtLinkSeverLoser = "Remote connection failed to communicate with the server.";
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txtRemoteDevicesHaveNoReply = "One port is not responding.";
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txtPwdError = "Password error";
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txtLinkNotExist = "Connection information error.";
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}
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}
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/// <summary>
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/// 加密算法
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/// </summary>
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/// <param name="SessionKey"></param>
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/// <param name="SessionLen"></param>
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/// <param name="KeyCode"></param>
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/// <param name="KeyCodeLen"></param>
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void encryption (int [] SessionKey, int SessionLen, int [] KeyCode, int KeyCodeLen)
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{
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int j, flag = 0;
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int session = 0;
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int temp1, temp2, temp = 0;
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int sk = 0; flag = 0; j = SessionLen;
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int k = 0;
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while (0 < j) {
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if (0 < flag) {
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session = 0xFF & (session + SessionKey [k++]);
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flag = 0;
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} else {
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session = 0xFF & (session - SessionKey [k++]);
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flag = 1;
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}
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j--;
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}
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sk = 0xFF & (session % 15);
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flag = 0;
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j = KeyCodeLen;
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k = 0;
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while (0 < j) {
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temp1 = 0xFF & (KeyCode [k] + (session % j));
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temp1 = 0xFF & (~temp1 + 1);
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temp2 = 0xFF & (temp1 & 0xf0);
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temp1 = 0xFF & (temp1 & 0x0f);
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switch (sk) {
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case 0: temp = 0xFF & ((temp2 >> 4) | (temp1 << 4)); break;
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case 1: temp = 0xFF & ((temp2 + j * 2) | (temp1 + j % 4)); break;
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case 2: temp = 0xFF & ((temp2 + j % 5) | (temp1 + 1)); break;
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case 3: temp = 0xFF & ((temp2 >> 2) | (temp1 << 2)); break;
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case 4: temp = 0xFF & ((temp2 - 5) | (temp1 + 4)); break;
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case 5: temp = 0xFF & ((temp2 % 7) | (temp1 + 4)); break;
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case 6: temp = 0xFF & ((temp2 + j) | (temp1)); break;
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case 7: temp = 0xFF & ((temp2 - j) | (temp1 + j % 2)); break;
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case 8: temp = 0xFF & ((~temp2) | (temp1 + j % 6)); break;
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case 9: temp = 0xFF & ((temp2 + j % 3) | (temp1 + j)); break;
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case 10: temp = 0xFF & ((temp2) | (temp1 + 1)); break;
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case 11: temp = 0xFF & ((temp2) | (temp1)); break;
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case 12: temp = 0xFF & ((temp2 - j) | (temp1 + 4)); break;
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case 13: temp = 0xFF & ((temp2) | (temp1 + j)); break;
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case 14: temp = 0xFF & ((temp2 - 2) | (temp1 - 4)); break;
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default: temp = 0xFF & ((temp2 >> 4) | (temp1 << 4)); break;
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}
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KeyCode [k] = temp;
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k++; j--;
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}
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}
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byte [] makeSurePassword (string Remote_ProjectName, string Remote_UserName, string Remote_Password)
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{
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byte [] tempBytes = new byte [66];
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byte [] b1 = CommonPage.MyEncodingGB2312.GetBytes (Remote_ProjectName);
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//工程备注
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System.Array.Copy (b1, 0, tempBytes, 0, 20 < b1.Length ? 20 : b1.Length);
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//用户名
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byte [] b2 = CommonPage.MyEncodingGB2312.GetBytes (Remote_UserName);
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System.Array.Copy (b2, 0, tempBytes, 20, 8 < b2.Length ? 8 : b2.Length);
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byte [] b3 = CommonPage.MyEncodingGB2312.GetBytes (Remote_Password);
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int [] KeyCode = new int [8];
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System.Array.Copy (b3, 0, KeyCode, 0, 8 < b3.Length ? 8 : b3.Length);
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int [] SessionKey = new int [] { (int)0x01, 0x01, 0x01, 0x01, (int)0x01, (int)0x01, 0x01, 0x01 };
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//密匙
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//0xF1 0x05 0x23 0x49 0xac 0xe6 0x5b 0x28
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tempBytes [36] = (byte)SessionKey [0];
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tempBytes [37] = (byte)SessionKey [1];
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tempBytes [38] = (byte)SessionKey [2];
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tempBytes [39] = (byte)SessionKey [3];
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tempBytes [40] = (byte)SessionKey [4];
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tempBytes [41] = (byte)SessionKey [5];
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tempBytes [42] = (byte)SessionKey [6];
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tempBytes [43] = (byte)SessionKey [7];
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encryption (SessionKey, 8, KeyCode, (byte)8);
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// 远程访问的密码
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//0x0e 0x0f 0x0e 0x12 0x13 0x12 0x13 0x04
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tempBytes [28] = (byte)KeyCode [0];
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tempBytes [29] = (byte)KeyCode [1];
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tempBytes [30] = (byte)KeyCode [2];
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tempBytes [31] = (byte)KeyCode [3];
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tempBytes [32] = (byte)KeyCode [4];
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tempBytes [33] = (byte)KeyCode [5];
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tempBytes [34] = (byte)KeyCode [6];
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tempBytes [35] = (byte)KeyCode [7];
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int year = System.DateTime.Now.Year; //ca.get();//获取年份
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int month = System.DateTime.Now.Month; //ca.get(Calendar.MONTH);//获取月份
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int day = System.DateTime.Now.Day; //ca.get(Calendar.DAY_OF_MONTH);//获取日
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int hour = System.DateTime.Now.Hour; //ca.get(Calendar.HOUR);//小时
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int minute = System.DateTime.Now.Minute; //ca.get(Calendar.MINUTE);//分
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int second = System.DateTime.Now.Second; //ca.get(Calendar.SECOND);//秒
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var yearString = year.ToString ();
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tempBytes [44] = byte.Parse (yearString.Substring (yearString.Length - 2, 2));
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tempBytes [45] = (byte)month;
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tempBytes [46] = (byte)day;
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tempBytes [47] = (byte)hour;
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tempBytes [48] = (byte)minute;
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tempBytes [49] = (byte)second;
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tempBytes [50] = (byte)('H');
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tempBytes [51] = (byte)('D');
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tempBytes [52] = (byte)('L');
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tempBytes [53] = (byte)('-');
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tempBytes [54] = (byte)('O');
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tempBytes [55] = (byte)('N');
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tempBytes [56] = (byte)(' ');
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tempBytes [57] = (byte)(' ');
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tempBytes [58] = (byte)(' ');
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tempBytes [59] = (byte)(' ');
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tempBytes [60] = (byte)('2');
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tempBytes [61] = (byte)('.');
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tempBytes [62] = (byte)('0');
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tempBytes [63] = (byte)('.');
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tempBytes [64] = (byte)('0');
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tempBytes [65] = (byte)('0');
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return tempBytes;
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}
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public bool checeInternet ()
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{
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//byte [] bytes = null;
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//var dateTime = DateTime.Now;
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//System.Threading.Tasks.Task.Run (() => {
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// bytes = new System.Net.WebClient { Proxy = null }.DownloadData ("http://www.baidu.com");
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//});
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//while ((DateTime.Now - dateTime).TotalMilliseconds < 8000) {
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// System.Threading.Thread.Sleep (100);
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// if (bytes != null) {
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// return true;
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// }
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//}
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return true;
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}
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bool ShowTip = true;
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//static Alert sssAlert = new Alert ("", "Make sure your gateway is powered ON and connected to WIFI router", "Cancel", "Try again");
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/// <summary>
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/// 连接远程一端口交换机
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/// </summary>
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/// <param name="userName">用户名</param>
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/// <param name="projectName">工程名</param>
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/// <param name="password">密码</param>
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/// <param name="isConnect">连接为真，断开为假</param>
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public string LinkRemote (string userName, string projectName, string password, bool isConnect)
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{
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bool result = false;
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string linkMsg = "";
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try {
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if (!checeInternet ()) {
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Application.RunOnMainThread (() => {
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MainPage.Loading.Hide ();
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});
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return txtCheckInternet;
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} else {
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Application.RunOnMainThread (() => {
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MainPage.Loading.Start ("Connecting...");
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MainPage.Loading.CurStatus = true;
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});
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//System.Threading.Tasks.Task.Run (() => {
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byte [] userNameBytes = CommonPage.MyEncodingGB2312.GetBytes (userName);
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byte [] projectBytes = CommonPage.MyEncodingGB2312.GetBytes (projectName);
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byte [] firstBytes = new byte [28];
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//用户名
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System.Array.Copy (userNameBytes, 0, firstBytes, 0, 8 < userNameBytes.Length ? 8 : userNameBytes.Length);
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//工程备注
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System.Array.Copy (projectBytes, 0, firstBytes, 8, 20 < projectBytes.Length ? 20 : projectBytes.Length);
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//服务器的子网号设备号固定为1，251
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//1byte // 0不存在 1存在
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//远程访问的用户名 8 bytes
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//工程备注 20 bytes
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//IP地址: 4bytes
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//端口: 2bytes
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//在线状态： 1byte 0不在线 1在线
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byte [] firstReturnBytes = Control.ControlBytesSendHasReturn (Command.RemoteFirst, 251, 251, firstBytes);
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//连接不到远程服务器
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if (firstReturnBytes == null) {
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linkMsg = txtLinkSeverLoser;//"，远程连接与服务器通讯失败。";
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return linkMsg;
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}
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//从服务器获取用户远程连接的信息
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else {
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if (firstReturnBytes [0] == 0) {
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return txtLinkNotExist;
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}
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byte [] secoudBytes = new byte [7];
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System.Array.Copy (firstReturnBytes, 29, secoudBytes, 0, 6);
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secoudBytes [6] = isConnect ? (byte)1 : (byte)0;
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byte [] secoudBytesReturnBytes = Control.ControlBytesSendHasReturn (Command.RemoteSecoud, 251, 251, secoudBytes);
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if (!isConnect) {
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//断开连接远程服务器
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CommonPage.IsRemote = false;
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return "200";
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}
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var tempBytes = makeSurePassword (projectName, userName, password);
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//密码验证
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if (secoudBytesReturnBytes != null) {
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byte [] isSuccess = Control.ControlBytesSendHasReturn (Command.Remote3th, 0xFF, 0xFF, tempBytes);
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if (isSuccess == null) {
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//一端口交换机没有数据回复
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linkMsg = txtRemoteDevicesHaveNoReply;
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return linkMsg;
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}
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if (isSuccess [0] == 0xF8) {
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result = true;
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//远程连接成功
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linkMsg = "200";
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} else {
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//密码错误
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linkMsg = txtPwdError;
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}
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}
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return linkMsg;
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}
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}
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} catch (Exception ex) {
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Console.WriteLine (ex.Message);
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return "";
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} finally {
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Application.RunOnMainThread (() => {
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MainPage.Loading.Hide ();
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});
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}
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}
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}
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}
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