/// <summary>
/// Dispatch will, given a request, return the webpage that will be shown to the user.
/// </summary>
/// <param name="request">The incoming HTML request, in it's entirety</param>
/// <returns>The html to be sent back to the user. Additionally, it will also alter the response, if necessary</returns>
public static string Dispatch(HttpListenerContext rtx)
{
// Check if user is logged in (via cookies?)
HttpListenerRequest request = rtx.Request;
HttpListenerResponse response = rtx.Response;
Cookie reqLogger = request.Cookies["UserID"];
// Get URI:
string path = request.RawUrl;
if (path.Contains("?") || path.Length < 2)
{
// there will be no img
path = "";
}
User user = null;
if (reqLogger != null)
{
user = new User(Convert.ToInt64(reqLogger.Value));
}
if (request.ContentType != null && request.ContentType.Contains("multipart/form-data"))
{
MultipartParser parser = new MultipartParser(request.InputStream, "image");
if (parser.Success)
{
// Image file will be saved in resources/images/users/User[UID].jpg
// Figure out which page user was on, engage.
if (request.QueryString["dest"] != null)
{
switch (request.QueryString["dest"])
{
case "dashboard":
return(DashboardManager.Dashboard(user));
case "profile":
// Save user image:
user.SaveImage(parser);
return(ProfileManager.ProfilePage(user));
default:
return(DashboardManager.Dashboard(user));
}
}
else
{
// Just return dashboard
return(DashboardManager.Dashboard(user));
}
}
// We have image; read! (how????)
// We will return the same page, with new image!
}
if (request.HasEntityBody)
{
string input;
// Read input, then dispatch accordingly
using (StreamReader reader = new StreamReader(request.InputStream))
{
input = reader.ReadToEnd();
NameValueCollection dict = HttpUtility.ParseQueryString(input);
if (dict["submit"] != null)
{
// Dispatch to correct logic:
switch (dict["submit"])
{
case "Logout":
if (request.Cookies["UserID"] != null)
{
// Logout user by removing UserID token:
Cookie cookie = new Cookie("UserID", "-1");
cookie.Expires = DateTime.Now.AddDays(-1d);
response.Cookies.Add(cookie);
}
return(LoginManager.Login());
case "Signup":
user = new User(dict["firstName"], dict["lastName"], dict["email"], dict["password"]);
user.Create();
return(LoginManager.SuccessSignup());
case "Login":
try
{
user = new User(dict["email"], dict["password"]);
Cookie logger = new Cookie("UserID", Convert.ToString(user.id));
response.Cookies.Add(logger);
response.AppendHeader("dest", "dashboard");
return(DashboardManager.Dashboard(user));
} catch (InvalidPasswordException)
{
return(LoginManager.FailLogin());
} catch (UserNotFoundException)
{
return(LoginManager.FailLogin());
}
case "PasswordResetRequest":
// POST data will have user email. Send recovery email.
PasswordReset.SendRecoveryEmail(dict["email"]);
return(ResetManager.ResetPasswordSent());
case "PasswordReset":
// Reset password and direct to login page
// POST data will have userID in userID input. Reset the password and let the user know.
long id = Convert.ToInt64(dict["userID"]);
string password = dict["password"];
PasswordReset.ResetPassword(id, password);
return(ResetManager.SuccessResetPassword());
default:
return(LoginManager.Login());
}
}
else
{
// If string is not empty, perhaps it is a
return(LoginManager.Login());
}
}
}
else if (user == null)
{
// Send login page EXCEPT if requesting password reset:
if (request.QueryString["ResetToken"] != null)
{
// Get token; search DB for hash. If it exists, show reset form
string token = request.QueryString["ResetToken"];
long id = PasswordReset.GetUser(token);
// Show reset form. Form will have a hidden input with UserID?
return(ResetManager.CreateReset(id));
}
else
{
return(LoginManager.Login());
}
}
else if (request.QueryString["dest"] != null)
{
switch (request.QueryString["dest"])
{
case "dashboard":
return(DashboardManager.Dashboard(user));
case "profile":
return(ProfileManager.ProfilePage(user));
default:
return(DashboardManager.Dashboard(user));
}
}
else if (path.Length != 0)
{
// Check if user is allowed to access
// Serve back whatever's at the path (will be image):
byte[] buffer = File.ReadAllBytes(WebServer.GeneratePath(path));
response.ContentLength64 = buffer.Length;
using (Stream resp = response.OutputStream)
{
resp.Write(buffer, 0, buffer.Length);
}
return("");
}
else
{
// If logged in (but no request), just send back home page:
return(DashboardManager.Dashboard(user));
}
}
