/// <summary>
/// If there is a stream handler registered that can handle the
/// request, then fine. If the request is not matched, do
/// nothing.
/// Note: The selection is case-insensitive
/// </summary>
private bool FindStreamHandler(OSHttpRequest request, OSHttpResponse response)
{
RequestData rdata = new RequestData(request, response, String.Empty);
string bestMatch = String.Empty;
string path = String.Format("{0}:{1}", rdata.method, rdata.path).ToLower();
Rest.Log.DebugFormat("{0} Checking for stream handler for <{1}>", MsgId, path);
if (!IsEnabled)
{
return false;
}
foreach (string pattern in streamHandlers.Keys)
{
if (path.StartsWith(pattern))
{
if (pattern.Length > bestMatch.Length)
{
bestMatch = pattern;
}
}
}
// Handle using the best match available
if (bestMatch.Length > 0)
{
Rest.Log.DebugFormat("{0} Stream-based handler matched with <{1}>", MsgId, bestMatch);
RestStreamHandler handler = streamHandlers[bestMatch];
rdata.buffer = handler.Handle(rdata.path, rdata.request.InputStream, rdata.request, rdata.response);
rdata.AddHeader(rdata.response.ContentType,handler.ContentType);
rdata.Respond("FindStreamHandler Completion");
}
return rdata.handled;
}
// Inventory Handler
private void DoTests(RequestData rdata)
{
if (!enabled)
return;
// Now that we know this is a serious attempt to
// access inventory data, we should find out who
// is asking, and make sure they are authorized
// to do so. We need to validate the caller's
// identity before revealing anything about the
// status quo. Authenticate throws an exception
// via Fail if no identity information is present.
//
// With the present HTTP server we can't use the
// builtin authentication mechanisms because they
// would be enforced for all in-bound requests.
// Instead we look at the headers ourselves and
// handle authentication directly.
try
{
if (!rdata.IsAuthenticated)
{
rdata.Fail(Rest.HttpStatusCodeNotAuthorized,
String.Format("user \"{0}\" could not be authenticated", rdata.userName));
}
}
catch (RestException e)
{
if (e.statusCode == Rest.HttpStatusCodeNotAuthorized)
{
Rest.Log.WarnFormat("{0} User not authenticated", MsgId);
Rest.Log.DebugFormat("{0} Authorization header: {1}", MsgId, rdata.request.Headers.Get("Authorization"));
}
else
{
Rest.Log.ErrorFormat("{0} User authentication failed", MsgId);
Rest.Log.DebugFormat("{0} Authorization header: {1}", MsgId, rdata.request.Headers.Get("Authorization"));
}
throw (e);
}
// Check that a test was specified
if (rdata.Parameters.Length < 1)
{
Rest.Log.DebugFormat("{0} Insufficient parameters", MsgId);
rdata.Fail(Rest.HttpStatusCodeBadRequest, "not enough parameters");
}
// Select the test
foreach (ITest test in tests)
{
if (!rdata.handled)
test.Execute(rdata);
}
}
