/// <summary>
/// url参数加密
/// </summary>
/// <param name="paramValue"></param>
/// <returns></returns>
public static string Encrypt(string paramValue)
{
Triple_DES des = new Triple_DES((HttpContext.Current == null || HttpContext.Current.Session == null) ? desKey : HttpContext.Current.Session.SessionID);
paramValue = des.Encrypt(paramValue);
paramValue = StrUtils.ToBase64(paramValue);
////去掉最后一个“=”字符
//paramValue = paramValue.Substring(0, paramValue.Length - 1);
return(paramValue);
}
/// <summary>
/// 加密处理登录信息并写入cookie，cookie值解密后的形式为：JobNo|pwd
/// </summary>
/// <param name="JobNo">登录名</param>
/// <param name="pwd">密码</param>
/// <param name="cookieName">cookie名</param>
public static void CreateLoginCookie(string JobNo, string cookieName)
{
Triple_DES des = new Triple_DES(desKey);
string loginInfo = JobNo;
loginInfo = des.Encrypt(loginInfo);
HttpCookie cookie = new HttpCookie(cookieName, loginInfo);
cookie.Expires = DateTime.Now.AddDays(15);
cookie.HttpOnly = true;
HttpContext.Current.Response.Cookies.Add(cookie);
}
/// <summary>
/// Cookie数据解密
/// </summary>
/// <param name="cookieValue"></param>
/// <returns></returns>
public static string DecryptCookie(string cookieValue)
{
try
{
////把空格替换成“+”，字符串后面加上“=”
//cookieValue = cookieValue.Replace(' ', '+') + "=";
Triple_DES des = new Triple_DES(desKey);
//cookieValue = StrUtils.FromBase64(cookieValue);
cookieValue = des.Decrypt(cookieValue);
}
catch
{
cookieValue = "";
}
return(cookieValue);
}
/// <summary>
/// url参数解密
/// </summary>
/// <param name="paramValue"></param>
/// <returns></returns>
public static string Decrypt(string paramValue)
{
try
{
if (paramValue == "0")
{
return(paramValue);
}
////把空格替换成“+”，字符串后面加上“=”
//paramValue = paramValue.Replace(' ', '+') + "=";
paramValue = StrUtils.FromBase64(paramValue);
Triple_DES des = new Triple_DES(((HttpContext.Current == null || HttpContext.Current.Session == null) ? desKey : HttpContext.Current.Session.SessionID));
paramValue = des.Decrypt(paramValue);
}
catch (System.Exception ex)
{
HttpContext.Current.Response.Redirect(string.Format("/Login/Error?message={0}", HttpContext.Current.Server.UrlEncode(ex.Message)), true);
}
return(paramValue);
}
public JsonResult SendMessage()
{
if (Session["user"] == null)
{
return(Json(new { status = "error", message = "User is not logged in" }));
}
var currentUser = (User)Session["user"];
var contact = Convert.ToInt32(Request.Form["contact"]);
string socket_id = Request.Form["socket_id"];
string secretKey = Triple_DES.GetRandomKeyHex();
Conversation convo = new Conversation
{
SenderId = currentUser.Id,
Message = Triple_DES.Encrypt(secretKey, HexConverter.StrToHex(Request.Form["message"])),
ReceiverId = contact,
CreatedAt = DateTime.Now,
SecretKey = secretKey
};
using (var db = new ChatContext()) {
db.Conversations.Add(convo);
db.SaveChanges();
convo.Message = Triple_DES.Decrypt(db.Conversations.FirstOrDefault(c => c.Id == convo.Id).SecretKey, convo.Message);
}
var conversationChannel = getConvoChannel(
currentUser.Id, contact);
pusher.TriggerAsync(
conversationChannel,
"new_message",
convo,
new TriggerOptions()
{
SocketId = socket_id
});
return(Json(convo));
}
public JsonResult ConversationWithContact(int contact)
{
if (Session["user"] == null)
{
return(Json(new { status = "error", message = "User is not logged in" }));
}
var currentUser = (User)Session["user"];
var conversations = new List <Conversation>();
using (var db = new ChatContext())
{
conversations = db.Conversations.
Where(c => (c.ReceiverId == currentUser.Id && c.SenderId == contact) || (c.ReceiverId == contact && c.SenderId == currentUser.Id))
.OrderBy(c => c.CreatedAt)
.ToList();
foreach (var i in conversations)
{
i.Message = Triple_DES.Decrypt(i.SecretKey, i.Message);
}
}
return(Json(new { status = "success", data = conversations }, JsonRequestBehavior.AllowGet));
}
