Simple AdjutantOS app meant for locating a device within a home.

MainActivity.cs

// 
// Author: John Carruthers (johnc@frag-labs.com)
// 
// Copyright (C) 2013 John Carruthers
// 
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//  
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//  
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
// 

using System;
using System.Threading.Tasks;
using Android.App;
using Android.Content;
using Android.Runtime;
using Android.Views;
using Android.Widget;
using Android.OS;

using FragLabs.AdjutantOS.Client;
using FragLabs.Adjutant.Network.Interfaces;
using FragLabs.Adjutant.Network.Sockets;
using FragLabs.Adjutant.Network.Presence;
using FragLabs.AdjutantOS.API;
using FragLabs.AdjutantOS.API.CoreModule.Dtos;
using FragLabs.Adjutant.Network.Crypto;
using FragLabs.AdjutantOS.API.Modules;
using FragLabs.AdjutantOS.API.Modules.Domains;
using FragLabs.AdjutantOS.API.Devices;
using FragLabs.AdjutantOS.API.Location;
using Logger = FragLabs.AdjutantOS.API.Log.Logger;
using LogLevel = FragLabs.AdjutantOS.API.Log.LogLevel;

namespace AudioLocator
{
	[Activity (Label = "AudioLocator", MainLauncher = true)]
	public class MainActivity : Activity
	{
		Button _button;
		TextView _debugTxt;

		Network _network;

		protected override void OnCreate (Bundle bundle)
		{
			base.OnCreate (bundle);

			// Set our view from the "main" layout resource
			SetContentView (Resource.Layout.Main);

			// Get our button from the layout resource,
			// and attach an event to it
			_button = FindViewById<Button> (Resource.Id.myButton);
			_debugTxt = FindViewById<TextView> (Resource.Id.debugTxt);
			
			_button.Click += delegate {
				if (!_network.IsConnected)
				{
					_debugTxt.Text += System.Environment.NewLine + "Not connected to the server";
					return;
				}
				_debugTxt.Text += System.Environment.NewLine + "Starting audio locator ping";
				Task.Factory.StartNew(()=>{
					var rooms = LocationRepository.All<Room>();
					var audioDetector = new AudioDetector();
					foreach(var room in rooms)
					{
						WriteDebug(String.Format("Audio ping {0} for 50ms", room.Name));
						ServiceInvoker.CallOneWay(DeviceRepository.Server, new AudioPing
						{
							LocationId = room.Id,
							Duration = TimeSpan.FromMilliseconds(50)
						});
						//  runs the audio pattern detector with a grace period of time to account for communication delays
						audioDetector.RunDetector(room, TimeSpan.FromMilliseconds(50), TimeSpan.FromMilliseconds(50));
					}
					if (audioDetector.LoudestLocation == null)
					{
						WriteDebug("Locating failed, you are lost");
					}
					else
					{
						WriteDebug(String.Format("Found you! You're hiding in {0}", audioDetector.LoudestLocation.Name));
					}
				});
			};

			FragLabs.AdjutantOS.API.Log.Logger.Init (System.Console.Out);

			DomainManager.Initialize(typeof(FragLabs.AdjutantOS.API.AccountRepository).Assembly);
			SetupEnvironment ();

			//  static pre-generated rsa key for testing purposes
			var privateKey = "<RSAKeyValue><Modulus>rgjsx/sauzHW1gGh3v4AdcEClpJYxlFGh4crNjMJpm62cUT9xlcXiXBfesISvQ6Yji3xTTvsWaoHdOLnOs4+jrtJGX4bHXRV1FsMyVOaSM916w+uxTZAris5Yr67xhIBmMnLEkYhQuxHe+isPPzSe5YjI+mNUbbu4fHRUtqgLts=</Modulus><Exponent>EQ==</Exponent><P>sqn7cKlV/OKOUydbefMBBK/F2Jgwoy7CaTF/Cl5ZAe+hJHMmXGhGE6fp7z7er2KYUdGP5ktwvKNVrGoFLoIdiw==</P><Q>+V37apiu663iBzUBNSW9sCuhKjIqrRwV2I2zAI/pJhsURn67Uf2KFD47+VCjRKCtlgrKzxsbqF0Dw/DtrtD98Q==</Q><DP>NIxZAwSg0ehH+lbeq2WW40LBuCzDAtGEeUrLAwywxFWJv20pZnkFjU+BCiGMyiwOrqcMNKzGzhHsBYiYHLzbgw==</DP><DQ>WAMNcOqYFvITihK1IdEVxbULtIotLgnpl7mKeKtDOqAlRg6cd0ps+BX3DLMMcpMQFtah7r5F/y/jNhjMW9FKkQ==</DQ><InverseQ>Nuhne0ugc9CjkLQxLQ7NY7/gadEtK8qPFgjKx3kK5zgWYnTx7uhoR5N3WXebqu6vtT8dP5ZC7ksgdl/bvYozyA==</InverseQ><D>KPMKiWhChmYUbpb46Sy00GmmQYvYpyIutnooSPzzNjgq7XmlH5wFicAWdzy5HWzYmeyxP1lkyc2nZsv6K/RK9AOW2vkkBcaIzDxlvzXEIH668eTqc0UqyOukR7HWAOvBnukkC27+7dPaqtLZlWt8DKF6ETlyiMf74+I5+HfV5nE=</D></RSAKeyValue>";
			var publicKey = "<RSAKeyValue><Modulus>rgjsx/sauzHW1gGh3v4AdcEClpJYxlFGh4crNjMJpm62cUT9xlcXiXBfesISvQ6Yji3xTTvsWaoHdOLnOs4+jrtJGX4bHXRV1FsMyVOaSM916w+uxTZAris5Yr67xhIBmMnLEkYhQuxHe+isPPzSe5YjI+mNUbbu4fHRUtqgLts=</Modulus><Exponent>EQ==</Exponent></RSAKeyValue>";

			_network = new Network (44127, publicKey);
			_network.MessageSigner = new FragLabs.Adjutant.Network.Crypto.RsaSigner(privateKey);
			_network.Connected += HandleConnected;
			_network.VerifyServer += (sender, e) => { e.IsVerified = true; };
			_network.Start ();
		}

		void HandleConnected (object sender, ConnectedEventArgs e)
		{
			DeviceRepository.Server = new Server(e.Client, _network.MessageSigner);
			Logger.Write(LogLevel.Debug, "Announcing presence to server");
			ServiceInvoker.Call<AnnounceResponse> (DeviceRepository.Server, new Announce {
				Hostname = System.Environment.MachineName,
				NodeType = FragLabs.AdjutantOS.API.Environment.NodeType,
				Platform = FragLabs.AdjutantOS.API.Environment.Platform,
				PhysicalAddress = "",
				InstalledApps = new Guid[0],
				RunningApps = new Guid[0]
			}).ContinueWith (t => {
				try{
					var response = t.Result;
					Logger.Write(LogLevel.Debug, "Device id: {0}", response.DeviceId);
					WriteDebug ("Connected to server");
				} catch (Exception ex){
					WriteDebug ("Failed to connect to the server");
					Logger.Write(LogLevel.Debug, "Failed connecting to server: {0}", ex);
				}
			});
		}

		void WriteDebug(string message)
		{
			RunOnUiThread (()=>{
				_debugTxt.Text += System.Environment.NewLine + message;
			});
		}

		static void SetupEnvironment()
		{
			FragLabs.AdjutantOS.API.Environment.NodeType = FragLabs.AdjutantOS.API.Network.NodeType.Client;
			Logger.Write(LogLevel.Debug, "Running on:       {0}", FragLabs.AdjutantOS.API.Environment.Platform.OperatingSystem);
			Logger.Write(LogLevel.Debug, "System uptime:    {0}", FragLabs.AdjutantOS.API.Environment.Platform.Uptime);
			Logger.Write(LogLevel.Debug, "Is raspberry pi:  {0}", FragLabs.AdjutantOS.API.Environment.Platform.IsRaspberryPi);
		}
	}
}