private Response HandleApiRequest(ApiRequest apiRequest, string requestData)
{
var parameters = apiRequest.Parameters;
// If this was a POST request, the request data itself contains parameters.
if (!string.IsNullOrWhiteSpace(requestData))
{
var paramStrings = requestData.Split('&');
foreach (var parts in paramStrings.Select(p => p.Split('=')))
{
parameters[parts[0]] = Uri.UnescapeDataString(parts[1].Replace('+', ' '));
}
}
var rawResult = _operationRegistry.InvokeCommand(apiRequest.CommandName, parameters);
if (rawResult == null)
{
return new Response(new JsonString(""));
}
else
{
if (rawResult is Image) // Image generates a png
{
var memoryStream = new MemoryStream();
((Image)rawResult).SaveBmp(memoryStream);
memoryStream.Position = 0;
return new Response(new TypedStream(memoryStream, "image/png"));
}
else if (rawResult is ITypedStream)
{
return new Response((ITypedStream)rawResult);
}
else // Otherwise, return a json-serialized version
{
string result = JsonSerializer.Serialize(rawResult);
return new Response(new JsonString(result));
}
}
}
private ApiRequest ParseApiUrl(Uri url)
{
var result = new ApiRequest
{
Parameters = new Dictionary<string, string>(),
CommandName = url.AbsolutePath.Substring("/api/".Length)
};
if (!string.IsNullOrEmpty(url.Query))
{
var paramStrings = url.Query.Substring(1).Split('&');
foreach (var parts in paramStrings.Select(p => p.Split('=')))
{
result.Parameters[parts[0]] = Uri.UnescapeDataString(parts[1].Replace('+', ' '));
}
}
return result;
}
