private void HandleRequest(HttpListenerContext context)
{
HttpListenerRequest request = context.Request;
HttpListenerResponse response = context.Response;
Console.WriteLine("Request {0}/{1} from {2}", request.RawUrl.ToString(), request.HttpMethod, request.RemoteEndPoint);
try
{
// Lets figure out the request...
switch (request.HttpMethod)
{
// Sanity check request
case "GET":
byte[] responseString;
//We verifying a password reset token?
if (request.Url.AbsolutePath.Contains("verify-token"))
{
string tokenData = request.QueryString["token"];
response.AppendHeader("Access-Control-Allow-Origin", "*");
response.AppendHeader("Access-Control-Allow-Methods", "POST, GET");
//1. Does the token exist?
if (!client.IsTokenValid(tokenData))
{
responseString = Encoding.UTF8.GetBytes("false");
response.StatusCode = 404; //Not Found
response.ContentLength64 = responseString.Length;
response.OutputStream.Write(responseString, 0, responseString.Length);
response.OutputStream.Close();
break;
}
//2. Did the token expire?
if (client.TokenExpired(tokenData))
{
responseString = Encoding.UTF8.GetBytes("false");
response.StatusCode = 400; //Bad Request
response.ContentLength64 = responseString.Length;
response.OutputStream.Write(responseString, 0, responseString.Length);
response.OutputStream.Close();
break;
}
//3. Was the token used already?
if (client.TokenUsed(tokenData))
{
responseString = Encoding.UTF8.GetBytes("false");
response.StatusCode = 409; //Conflict
response.ContentLength64 = responseString.Length;
response.OutputStream.Write(responseString, 0, responseString.Length);
response.OutputStream.Close();
break;
}
responseString = Encoding.UTF8.GetBytes("true");
response.StatusCode = 200; //Ok
response.ContentLength64 = responseString.Length;
response.OutputStream.Write(responseString, 0, responseString.Length);
response.OutputStream.Close();
break;
}
//Ping
responseString = Encoding.UTF8.GetBytes("Works!");
response.ContentLength64 = responseString.Length;
response.OutputStream.Write(responseString, 0, responseString.Length);
response.OutputStream.Close();
break;
// Account registration request
case "PUT":
// 1. Is the request good?
if (!request.HasEntityBody)
{
response.StatusCode = 400; //BadRequest
response.OutputStream.Close();
break;
}
string registrationData = new StreamReader(request.InputStream).ReadToEnd();
var regModel = JsonConvert.DeserializeObject <Account.RegistrationRequestModel>(registrationData);
// 2. Data valid?
if (!regModel.IsRequestValid())
{
response.StatusCode = 400; //BadRequest
response.OutputStream.Close();
break;
}
// 3. Is the username available?
if (client.UsernameExists(regModel.Username))
{
response.StatusCode = 403; //Forbidden
response.StatusDescription = "Username already exists.";
response.OutputStream.Close();
break;
}
// 4. Are the credentials good?
if (!Account.IsValidUsername(regModel.Username) || !Account.IsValidEmail(regModel.Email))
{
response.StatusCode = 406; //Not Acceptable
response.StatusDescription = (!Account.IsValidUsername(regModel.Username) ? "Invalid Username (Must be at least 4 characters long.)" : "Invalid Email");
response.OutputStream.Close();
break;
}
// 5. Is the email already used?
if (client.EmailExists(regModel.Email))
{
response.StatusCode = 409; //Conflict
response.StatusDescription = "Email already exists.";
response.OutputStream.Close();
break;
}
// Add it to the database, and we're good to go!
var account = client.AccountCreate(regModel.Username, regModel.PasswordHash,
Guid.NewGuid().ToString(),
DateTime.Now, DateTime.Now, 0, regModel.Email);
// 6. Oh uh? Some error happened!
if (account == null)
{
response.StatusCode = 500; //Internal Server Error
response.StatusDescription = "Account Creation Failed.";
response.OutputStream.Close();
break;
}
// Done!
response.StatusCode = 201; //Created
response.OutputStream.Close();
break;
// Account login request
case "POST":
// 1. Is the request good?
if (!request.HasEntityBody)
{
response.StatusCode = 400; //BadRequest
response.OutputStream.Close();
break;
}
//Are we doing a recovery request?
if (request.Url.AbsolutePath.Contains("recover"))
{
byte[] RequestResponseData;
string emailResponse;
string resetData = new StreamReader(request.InputStream).ReadToEnd();
var resetModel = JsonConvert.DeserializeObject <Account.RecoverRequestModel>(resetData);
// 2. Is the data valid?
if (!resetModel.IsRequestValid())
{
response.StatusCode = 400; //BadRequest
response.StatusDescription = (resetModel.Reset ? "Username " : "Email ") + "cannot be blank.";
response.OutputStream.Close();
break;
}
//Username Recovery
if (!resetModel.Reset)
{
// 3a. Are the credentials good?
if (resetModel.Email != null && !client.EmailExists(resetModel.Email))
{
response.StatusCode = 404; //Not Found
response.StatusDescription = "Email doesn't exist.";
response.OutputStream.Close();
break;
}
// 3b. Are the credentials good?
if (!Account.IsValidEmail(resetModel.Email))
{
response.StatusCode = 400; //Bad Request
response.StatusDescription = "Incorrect email format. Ex: [email protected]";
response.OutputStream.Close();
break;
}
// 4a. Was it successful?
string username;
if (!client.AccountRecover(resetModel.Email, out username))
{
response.StatusCode = 500; //Internal Server Error
response.StatusDescription = "Server Error: Couldn't retrieve your account info.";
response.OutputStream.Close();
break;
}
//Try sending an account recovery mail
//4b. Was it successful?
if (!client.AccountSendMail(resetModel.Email, username, null))
{
response.StatusCode = 500; //Internal Server Error
response.StatusDescription = "Server Error: Failed to send recovery info.";
response.OutputStream.Close();
break;
}
// Done!
RequestResponseData = Encoding.UTF8.GetBytes(resetModel.Email);
response.StatusCode = 200; //OK
response.ContentLength64 = RequestResponseData.Length;
response.OutputStream.Write(RequestResponseData, 0, RequestResponseData.Length);
response.OutputStream.Close();
break;
}
//Password Reset.
//Try generating a reset token
else
{
// 3. Are the credentials good?
if (resetModel.Username != null && !client.UsernameExists(resetModel.Username))
{
response.StatusCode = 404; //Not Found
response.StatusDescription = "Username doesn't exist.";
response.OutputStream.Close();
break;
}
// 4a. Was it successful?
string[] parameters; //Email = 0, Token = 1
if (!client.AccountReset(resetModel.Username, out parameters))
{
response.StatusCode = 500; //Internal Server Error
response.StatusDescription = "Server error: Reset creation failed.";
response.OutputStream.Close();
break;
}
//Try sending a password reset link
// 4b. Was it successful?
if (!client.AccountSendMail(parameters[0], resetModel.Username, parameters[1]))
{
response.StatusCode = 500; //Internal Server Error
response.StatusDescription = "Server Error: Failed to send reset link.";
response.OutputStream.Close();
break;
}
emailResponse = client.EncodeEmail(parameters[0]);
}
// Done!
RequestResponseData = Encoding.UTF8.GetBytes(emailResponse);
response.StatusCode = 200; //OK
response.ContentLength64 = RequestResponseData.Length;
response.OutputStream.Write(RequestResponseData, 0, RequestResponseData.Length);
response.OutputStream.Close();
break;
}
//Are we resetting a password?
if (request.Url.AbsolutePath.Contains("reset-password"))
{
string resetData = new StreamReader(request.InputStream).ReadToEnd();
var resetModel = JsonConvert.DeserializeObject <Account.ResetRequestModel>(resetData);
response.AppendHeader("Access-Control-Allow-Origin", "*");
response.AppendHeader("Access-Control-Allow-Methods", "POST, GET");
//1. Is the data valid?
if (!resetModel.IsRequestValid())
{
response.StatusCode = 400; //Bad Request
byte[] ResetResponseData = Encoding.UTF8.GetBytes("false");
response.ContentLength64 = ResetResponseData.Length;
response.OutputStream.Write(ResetResponseData, 0, ResetResponseData.Length);
response.OutputStream.Close();
}
//2. Does the token exist?
resetModel.Token = HttpUtility.UrlDecode(resetModel.Token);
if (!client.IsTokenValid(resetModel.Token))
{
responseString = Encoding.UTF8.GetBytes("false");
response.StatusCode = 404; //Not Found
response.ContentLength64 = responseString.Length;
response.OutputStream.Write(responseString, 0, responseString.Length);
response.OutputStream.Close();
break;
}
//3. Was the reset successful?
if (!client.AccountPasswordUpdate(resetModel.Token, resetModel.Password))
{
responseString = Encoding.UTF8.GetBytes("false");
response.StatusCode = 500; //Internal Server Error
response.ContentLength64 = responseString.Length;
response.OutputStream.Write(responseString, 0, responseString.Length);
response.OutputStream.Close();
break;
}
responseString = Encoding.UTF8.GetBytes("true");
response.StatusCode = 200; //Ok
response.ContentLength64 = responseString.Length;
response.OutputStream.Write(responseString, 0, responseString.Length);
response.OutputStream.Close();
break;
}
//Infantry Login
string loginData = new StreamReader(request.InputStream).ReadToEnd();
var loginModel = JsonConvert.DeserializeObject <Account.LoginRequestModel>(loginData);
// 2. Is the data valid?
if (!loginModel.IsRequestValid())
{
response.StatusCode = 400; //BadRequest
response.OutputStream.Close();
break;
}
// 3a. Are the credentials good?
if (!client.UsernameExists(loginModel.Username))
{
response.StatusCode = 404; //Not Found
response.StatusDescription = "Username doesn't exist.";
response.OutputStream.Close();
break;
}
// 3b. Are the credentials good?
if (!client.IsAccountValid(loginModel.Username, loginModel.PasswordHash))
{
response.StatusCode = 404; //Not Found
response.StatusDescription = "Incorrect Password.";
response.OutputStream.Close();
break;
}
// Try logging in
Account a = client.AccountLogin(loginModel.Username, loginModel.PasswordHash, request.RemoteEndPoint.Address.ToString());
// 4. Was it successful?
if (a == null)
{
response.StatusCode = 400; //BadRequest
response.StatusDescription = "Account doesn't exist.";
response.OutputStream.Close();
break;
}
var loginResponseModel = new Account.LoginResponseModel();
loginResponseModel.Username = a.Username;
loginResponseModel.Email = a.Email;
loginResponseModel.TicketId = a.SessionId;
loginResponseModel.DateCreated = a.DateCreated;
loginResponseModel.LastAccessed = a.LastAccessed;
loginResponseModel.Permission = a.Permission;
var loginResponseString = JsonConvert.SerializeObject(loginResponseModel);
byte[] loginResponseData = Encoding.UTF8.GetBytes(loginResponseString);
response.StatusCode = 200; //OK
response.ContentLength64 = loginResponseData.Length;
response.OutputStream.Write(loginResponseData, 0, loginResponseData.Length);
response.OutputStream.Close();
break;
}
}
catch (Exception e)
{
if (e.Message.Contains("SQL"))
{
Console.WriteLine("Unhandled SQL exception");
}
}
}