/// <summary>
/// Passes the request JSON an appropriate handler.
/// </summary>
/// <param name="request">The request JSON to pass to the handler.</param>
/// <returns>A response JSON built by the handler.</returns>
protected JObject ParseRequest(JObject request)
{
request.TryGetValue("requestType", out JToken requestName);
request.TryGetValue("requestData", out JToken requestData);
if (requestName == null)
{
Log.Fine("Skipped malformed request with no requestType.");
return(Templates.MalformedRequest("requestType expected but not found"));
}
if (requestData == null)
{
Log.Fine("Skipped malformed request with no requestData.");
return(Templates.MalformedRequest("requestData expected but not found"));
}
// Get method to handle the incoming request
var handler = typeof(RequestHandler).GetMethod(requestName.ToString());
if (handler == null)
{
Log.Fine($"Skipped request with unknown type '{requestName}'");
return(Templates.InvalidRequestType(requestName.ToString()));
}
// Begin preparations for handler invocation
JObject response;
CurrentUser = null;
Log.Info($"Processing request '{requestName}'");
// Get handler attributes
var attributes = handler.GetCustomAttributes <RequestAttribute>();
var ignoreTokenAttrib = (IgnoreUserToken)attributes.FirstOrDefault(x => x is IgnoreUserToken);
var permissionAttrib = (RequiresPermissionLevel)attributes.FirstOrDefault(x => x is RequiresPermissionLevel);
// Return alternative response if verifications fail
if (ignoreTokenAttrib == null)
{
if (!VerifyToken(request, out response))
{
return(response);
}
}
if (permissionAttrib != null)
{
if (!VerifyPermission(request, permissionAttrib.Permission, out response))
{
return(response);
}
}
// Invoke handler and return response
return((JObject)handler.Invoke(this, new object[] { requestData }));
}