//用户登录和验证
public int CheckUser(User entity, out UserViewResult result)
{
using (var db = new HouseMarketEntities())
{
result = new UserViewResult();
if (string.IsNullOrEmpty(entity.UserName))
{
return (int)Errors.UserErrors.NullParameter;
}
else
{
var user = db.Users.FirstOrDefault(u => u.UserName == entity.UserName);
if (user == null)
{
return (int)Errors.UserErrors.NameNotExisted;
}
else
{
if (user.Password != entity.Password)
{
return (int)Errors.UserErrors.WrongPassword;
}
else
{
PropertyFunction.CopyEntity(user, result);
return 0;
}
}
}
}
}
public MyIdentity(UserViewResult user)
{
if (user != null)
{
ID = user.UserID;
Name = user.UserName;
Permission = user.Permission.Value;
IsAuthenticated = true;
}
}
//MD5加密生成令牌
public static string CreateTokenID(UserViewResult user)
{
MD5 md5 = MD5.Create();
byte[] value = Encoding.Default.GetBytes(user.UserName + DateTime.Now.ToString());
byte[] resultByte = md5.ComputeHash(value);
string result = BitConverter.ToString(resultByte);
result = result.Replace("-", "");
return result;
}
/// <summary>
/// 查询用户或用户登录
/// </summary>
/// <returns>用户视图，总页数</returns>
public HttpResponseMessage Get()
{
int totalPage = 0;
string tokenID = string.Empty;
List<UserViewResult> result = new List<UserViewResult>();
var queryString = Request.GetQueryNameValuePairs();
var token = queryString.FirstOrDefault(q=>q.Key.ToLower() == "token");
if (!string.IsNullOrEmpty(token.Value))
{
tokenID = token.Value;
}
if (queryString.Any(q => q.Key.ToLower() == "logout"))
{
TokenFunction tokenFunction = new TokenFunction();
tokenFunction.DeleteToken(new Token() { TokenID = tokenID });
return Request.CreateResponse(HttpStatusCode.OK);
}
else if (queryString.Any(q => q.Key.ToLower() == "password"))
{
string userName = queryString.FirstOrDefault(q => q.Key.ToLower() == "username").Value;
string password = queryString.FirstOrDefault(q => q.Key.ToLower() == "password").Value;
var logonUser = new UserViewResult();
int error = AuthenticationFunction.UserLogon(userName, password, out tokenID, out logonUser);
if (error == 0)
{
List<object> objectResult = new List<object>() { logonUser, tokenID };
return Request.CreateResponse(HttpStatusCode.OK, objectResult);
}
else
{
return GetResponse.UserResponse(error);
}
}
else
{
AuthenticationFunction.TokenValidation(tokenID);
if (!AuthenticationFunction.IsAuthenticated)
{
throw new HttpResponseException(Request.CreateResponse(HttpStatusCode.BadRequest, "token expired"));
}
var queryConditions = new UserQueryConditions();
queryConditions.GetValues(queryString);
UserFunction userFunction = new UserFunction();
userFunction.QueryUsers(queryConditions, out result, out totalPage);
List<object> objectResult = new List<object>() { result, new { totalPage = totalPage } };
return Request.CreateResponse(HttpStatusCode.OK, objectResult);
}
}
//用户登录验证和发放令牌
public static int UserLogon(string userName, string password, out string tokenID, out UserViewResult logonUser)
{
tokenID = string.Empty;
logonUser = new UserViewResult();
Database.User entity = new Database.User() { UserName = userName, Password = password };
UserFunction userFunction = new UserFunction();
int error = userFunction.CheckUser(entity, out logonUser);
if (error != 0)
{
return error;
}
else
{
tokenID = AuthenticationFunction.CreateTokenID(logonUser);
var newToken = new Token()
{
TokenID = tokenID,
UserID = logonUser.UserID,
ExpiredTime = DateTime.Now.AddMinutes(60)
};
TokenFunction tokenFunction = new TokenFunction();
tokenFunction.AddToken(newToken);
return 0;
}
}
//令牌验证
public static View_TokenUser TokenValidation(string tokenID)
{
if (string.IsNullOrEmpty(tokenID))
{
return null;
}
else
{
TokenFunction tokenFunction = new TokenFunction();
var tokenUser = tokenFunction.QueryTokenUser(tokenID);
if (tokenUser == null)
{
return null;
}
else if (tokenUser.ExpiredTime < DateTime.Now)
{
tokenFunction.DeleteToken(new Token() { TokenID = tokenID });
return null;
}
else
{
tokenUser.ExpiredTime = DateTime.Now.AddMinutes(60);
UserViewResult logonUser = new UserViewResult();
PropertyFunction.CopyEntity(tokenUser, logonUser);
MyIdentity myIdentity = new MyIdentity(logonUser);
MyPrincipal myPrincipal = new MyPrincipal(myIdentity);
SetPrincipal(myPrincipal);
Token newToken = new Token();
PropertyFunction.CopyEntity(tokenUser, newToken);
tokenFunction.EditTokenByToken(newToken);
return tokenUser;
}
}
}
