/// <summary>
/// Add a request handler
/// </summary>
/// <param name="method">HTTP verb to match, or null to skip verb matching</param>
/// <param name="contentType">Content-Type header to match, or null to skip Content-Type matching</param>
/// <param name="path">Request URI path regular expression to match, or null to skip URI path matching</param>
/// <param name="callback">Callback to fire when an incoming request matches the given pattern</param>
public void AddHandler(string method, string contentType, string path, HttpRequestCallback callback)
{
HttpRequestSignature signature = new HttpRequestSignature();
signature.Method = method;
signature.ContentType = contentType;
signature.Path = path;
AddHandler(new HttpRequestHandler(signature, callback));
}
/// <summary>
/// Default constructor
/// </summary>
/// <param name="signature">Signature pattern for matching against incoming requests</param>
/// <param name="callback">Callback for handling the request</param>
public HttpRequestHandler(HttpRequestSignature signature, HttpRequestCallback callback)
{
Signature = signature;
Callback = callback;
}
void ProcessRequest(IHttpClientContext context, IHttpRequest request)
{
LogWriter.Write(this, LogPrio.Trace, "Processing request...");
IHttpResponse response = request.CreateResponse(context);
try
{
// load cookies if they exist.
RequestCookies cookies = request.Headers["cookie"] != null
? new RequestCookies(request.Headers["cookie"])
: new RequestCookies(string.Empty);
request.SetCookies(cookies);
// Create a request signature
HttpRequestSignature signature = new HttpRequestSignature(request);
// Look for a signature match in our handlers
bool found = false;
for (int i = 0; i < _requestHandlers.Length; i++)
{
HttpRequestHandler handler = _requestHandlers[i];
if (signature == handler.Signature)
{
FireRequestCallback(context, request, response, handler.Callback);
found = true;
break;
}
}
if (!found)
{
// No registered handler matched this request's signature
if (_notFoundHandler != null)
{
FireRequestCallback(context, request, response, _notFoundHandler);
}
else
{
// Send a default 404 response
try
{
response.Status = HttpStatusCode.NotFound;
response.Reason = String.Format("No request handler registered for Method=\"{0}\", Content-Type=\"{1}\", Path=\"{2}\"",
signature.Method, signature.ContentType, signature.Path);
string notFoundResponse = "<html><head><title>Page Not Found</title></head><body><h3>" + response.Reason + "</h3></body></html>";
byte[] buffer = System.Text.Encoding.UTF8.GetBytes(notFoundResponse);
response.Body.Write(buffer, 0, buffer.Length);
response.Send();
}
catch (Exception) { }
}
}
}
catch (Exception err)
{
ThrowException(err);
bool errorResponse = true;
Exception e = err;
while (e != null)
{
if (e is SocketException)
{
errorResponse = false;
break;
}
e = e.InnerException;
}
if (errorResponse)
{
try
{
#if DEBUG
context.Respond(HttpHelper.HTTP11, HttpStatusCode.InternalServerError, "Internal server error", err.ToString(), "text/plain");
#else
context.Respond(HttpHelper.HTTP10, HttpStatusCode.InternalServerError, "Internal server error");
#endif
}
catch (Exception err2)
{
LogWriter.Write(this, LogPrio.Fatal, "Failed to respond on message with Internal Server Error: " + err2);
}
}
}
request.Clear();
LogWriter.Write(this, LogPrio.Trace, "...done processing request.");
}