public static RSResponse StoreFile(RSRequest rsRequest, Stream entity)
{
string extensionToAdd = "";
//If file extension was not specified, make a good guess
if (Path.GetExtension(rsRequest.LocalPath) == String.Empty)
{
extensionToAdd = rsRequest.ContentType.GetFileExtensionCandidates()[0];
}
//Add extension to the target file name (or don't)
string newFileName = rsRequest.LocalPath + extensionToAdd;
try
{
using (FileStream fs = File.OpenWrite(newFileName))
{
entity.CopyTo(fs);
}
}
catch (Exception ex)
{
return new StatusCodeResponse(HttpStatusCode.InternalServerError, ex.Message);
}
return new StatusCodeResponse(HttpStatusCode.Created);
}
/// <summary>
/// Construct new ServerThread, using HttpListenerContext to populate request and response objects
/// </summary>
/// <param name="context">The HttpListenerContext of the current request</param>
public HttpServerThread(HttpListenerContext context)
{
_request = context.Request;
_response = context.Response;
rsRequest = new RSRequest(context);
Output.Write(Name + " initialised");
}
/// <summary>
/// Pass the user through an authentication gate.
/// If the correct auth cookie is present, returns null
/// otherwise returns a 401 login prompt
/// </summary>
/// <param name="rsRequest"></param>
/// <returns>null if authenticated, StatusCodeResponse(401) if not</returns>
public static RSResponse RequireAuthentication(RSRequest rsRequest)
{
if (CookiePresent(rsRequest))
{
return null;
}
else
{
var loginResponse = new StatusCodeResponse(HttpStatusCode.Unauthorized, "Log in");
loginResponse.AdditionalHeaders.Add("WWW-Authenticate", "Basic realm=\"Log in to " + rsRequest.Website.Name + "\"");
return loginResponse;
}
}
/// <summary>
/// Based on request URI, method, and headers; form an appropriate response and carry out necessary actions on the server
/// </summary>
public void HandleRequest()
{
Output.Write(Name + " handling '" + _request.Url.AbsoluteUri + "'");
rsRequest = new RSRequest(_request.Url);
//ReServer (RS) response object
// Class used to build the raw output
// which will be fed into the HttpResponse OutputStream
RSResponse rsResponse = new RSResponse();
// Check first whether it is a dir
if (Directory.Exists(rsRequest.LocalPath))
{
Output.Write("Directory");
// localPath is a directory:
// Check it ends with a slash
if (rsRequest.PathEndsInSlash())
{
Output.Write("Getting default file");
// Folder root requested:
// Search configured list of default pages
rsResponse = new DefaultFileResponse(rsRequest.LocalPath, rsRequest.AcceptTypes);
}
else
{
// Re-target the request to the directory itself
// to give correct behaviour when child files are requested
Output.Write(" Lacks terminating slash; redirecting...");
_response.Redirect(_request.Url.AbsoluteUri + '/');
rsResponse = new RedirectionResponse();
}
}
else
{
//Return the requested file
rsResponse = new FileResponse(rsRequest.LocalPath, rsRequest.AcceptTypes);
}
//If not found, return error or debug info
if (!rsResponse.Satisfied)
{
//This is kind of temporary
rsResponse = new TextResponse(rsRequest.Website.Local, _request, HttpStatusCode.NotFound);
}
//Convert the response to a client-preferred Content-Type
// UNLESS this is a redirect scenario
if (rsResponse.Type != RSResponse.RSResponseType.Redirect)
{
rsResponse = TryConvertToAcceptableContentType(rsResponse);
}
//Set headers
// Logical headers like content type
_response.ContentType = rsResponse.ContentType.ToString();
// Additional headers added by the RSResponse
foreach (var h in rsResponse.AdditionalHeaders)
{
_response.Headers.Add(h);
}
// Feed the bytes using outputstream and close
_response.ContentLength64 = rsResponse.Bytes.Length;
Stream output = _response.OutputStream;
output.Write(rsResponse.Bytes, 0, rsResponse.Bytes.Length);
output.Close();
}
/// <summary>
/// Retrieve or perform an action on the specified file
/// </summary>
/// <param name="rsRequest">The original request object</param>
/// <param name="entityStream">The request body stream (for storage with PUT if necessary)</param>
/// <returns>RSResponse for the server thread to feed to the client</returns>
public RSResponse HandleFileRoute(RSRequest rsRequest, Stream entityStream)
{
switch (Method)
{
case GET:
//Retrieve the file
return new FileResponse(rsRequest.LocalPath, rsRequest.AcceptTypes);
case POST:
//TODO Decide behaviour for post to file; Append resource??
//return new StatusCodeResponse(HttpStatusCode.Created);
case PUT:
//Store the file at the specified path
return DocumentHandler.StoreFile(rsRequest, entityStream);
case DELETE:
//Delete the file
return DocumentHandler.DeleteFile(rsRequest.LocalPath, rsRequest.ContentType);
default:
//Return error if not handled
InvalidHttpMethod(Method);
break;
}
//(Defensive) return error if not handled
return new StatusCodeResponse(HttpStatusCode.MethodNotAllowed);
}
private static bool CookiePresent(RSRequest rsRequest)
{
string requiredCookie = CookieName(rsRequest);
return (rsRequest.Cookies[requiredCookie] != null);
}
private static string CookieName(RSRequest rsRequest)
{
return "rs-collab-" + rsRequest.Website.Name;
}
