public async Task <JsonModel> ChangePWD(string username, string cur_pwd, string new_pwd)
{
try
{
var user = await(from c in _dbContext.Users where c.UserName == username select c).FirstOrDefaultAsync();
if (user == null)
{
return(new JsonModel(false, "用户不存在", null));
}
string cur_md5pwd = Md5Util.Encode(Md5Util.Encode(cur_pwd + _pwd_salt) + username);
if (cur_md5pwd != user.Password)
{
return(new JsonModel(false, "当前密码错误", null));
}
string new_md5pwd = Md5Util.Encode(Md5Util.Encode(new_pwd + _pwd_salt) + username);
user.Password = new_md5pwd;
_dbContext.Users.Update(user);
await _dbContext.SaveChangesAsync();
return(new JsonModel(true, "修改成功", null));
}
catch (Exception e)
{
return(new JsonModel(false, "修改失败", e.Message));
}
}
private string GenarateStreamCode(int userid)
{
Random random = new Random();
string c = userid + random.Next() + "932qj@dawrr" + DateTime.Now.Ticks.ToString();
string result = Md5Util.Encode(Md5Util.Encode(c) + "th8jusde21@HRFIh");
return(result);
}
public async Task <string> Login(string username, string password)
{
string md5pwd = Md5Util.Encode(Md5Util.Encode(password + _pwd_salt) + username);
var linq = from c in _dbContext.Users
where c.UserName == username && c.Password == md5pwd
select c;
User user = await linq.FirstOrDefaultAsync();
if (user == null)
{
return("用户名或密码不正确");
}
UserData userdata = new UserData
{
UserId = user.Id,
UserName = user.UserName,
LoginTime = DateTime.Now
};
try
{
var roles = await(from c in _dbContext.UserRoles
join cc in _dbContext.Roles on c.UserId equals cc.Id
where c.UserId == user.Id
select cc).ToListAsync();
userdata.Roles = roles;
//角色权限
var per1 = from c in _dbContext.UserPermissions
join cc in _dbContext.Permissions
on c.PermissionId equals cc.Id
where c.UserId == user.Id
select cc;
//用户权限
var per2 = from c in _dbContext.UserRoles
join cc in _dbContext.RolePermissions on c.RoleId equals cc.RoleId
join ccc in _dbContext.Permissions on cc.PermissionId equals ccc.Id
where c.UserId == user.Id
select ccc;
var pers = await per1.Union(per2).ToListAsync();
userdata.Permissions = pers;
MyHttpContext.Current.Session.Set("UserData", userdata);
MyHttpContext.Current.Session.SetString("UserId", user.Id.ToString());
return("true");
}
catch (Exception ex)
{
return(ex.ToString());
}
}
public async Task <string> Register(User user)
{
string userName = user.UserName;
if (userName.Length < 1 || user.Password.Length < 1)
{
return("用户名或密码长度不足");
}
var linq = from c in _dbContext.Users
where c.UserName == userName
select 1;
if (await linq.AnyAsync())
{
return("用户名已存在"); //重复名
}
user.Password = Md5Util.Encode(Md5Util.Encode(user.Password + _pwd_salt) + userName);
await _dbContext.Users.AddAsync(user);
await _dbContext.SaveChangesAsync();
MyHttpContext.Current.Session.SetString("_register", "_register");
return("true");
}
