private async Task writeResponseAsync(string request, IOutputStream os, StreamSocketInformation socketInfo)
{
try
{
string[] requestParts = request.Split('/');
// Request for the root page, so redirect to home page
if (request.Equals("/"))
{
await redirectToPage(NavConstants.HOME_PAGE, os);
}
// Request for the home page
else if (request.Contains(NavConstants.HOME_PAGE))
{
// Generate the default config page
string html = await helper.GenerateStatusPage();
await WebHelper.WriteToStream(html, os);
}
// Request for the settings page
else if (request.Contains(NavConstants.SETTINGS_PAGE))
{
// Process the GET parameters
if (request.Contains("?"))
{
// Format the URI with the get parameters
Uri uri = new Uri("http://1.2.3.4:8000" + request);
// Take the parameters from the URL and put it into Settings
helper.ParseUriIntoSettings(uri);
await AppSettings.SaveAsync(App.Controller.XmlSettings, "Settings.xml");
// This is an event that lets us know what the controller is done restarting after the settings are applied
AutoResetEvent ase = new AutoResetEvent(false);
// Dispose and Initialize need to be called on UI thread because of DispatcherTimers
await CoreApplication.MainView.CoreWindow.Dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal, async() =>
{
try
{
// Restart the controller to apply new settings
App.Controller.Dispose();
await App.Controller.Initialize();
// Create the settings page and add a confirmation message that the settings were applied successfully
string html = helper.GeneratePage("Security System Config", "Security System Config", helper.CreateHtmlFormFromSettings(), "<span style='color:Green'>Configuration saved!</span><br><br>");
await WebHelper.WriteToStream(html, os);
}
catch (Exception ex)
{
Debug.WriteLine("Error restarting controller: " + ex.Message);
}
// Signal that the restart is done
ase.Set();
});
// Wait for controller restart to finish
ase.WaitOne();
}
else
{
// Generate the default config page
string html = helper.GeneratePage("Security System Config", "Security System Config", helper.CreateHtmlFormFromSettings());
await WebHelper.WriteToStream(html, os);
}
}
// Request for the OneDrive page
else if (request.Contains(NavConstants.ONEDRIVE_PAGE))
{
// Take in the parameters and try to login to OneDrive
if (request.Contains("?"))
{
// I just put some arbitrary IP and port just so I have a correctly formatted URI, it's not important to have an actual IP + port
Uri uri = new Uri("http://1.2.3.4:8000" + request);
await helper.ParseOneDriveUri(uri);
var oneDrive = App.Controller.Storage as OneDrive;
if (oneDrive != null)
{
if (oneDrive.IsLoggedIn())
{
// Save tokens to settings file if we successfully logged in
await AppSettings.SaveAsync(App.Controller.XmlSettings, "Settings.xml");
}
}
}
// Generate page and write to stream
string html = helper.GenerateOneDrivePage();
await WebHelper.WriteToStream(html, os);
}
// Request for gallery page
else if (request.Contains(NavConstants.GALLERY_PAGE))
{
string html = "";
var storageType = App.Controller.Storage.GetType();
// If the storage type is OneDrive, generate page with link to OneDrive
if (storageType == typeof(OneDrive))
{
html = helper.GeneratePage("Gallery", "Gallery", "<b>" + storageType.Name + "</b> is set as your storage provider. "
+ "Please view your pictures on <a href='http://www.onedrive.com' target='_blank'>OneDrive</a>.<br><br>"
+ "To view your pictures here, please select <b>" + StorageProvider.Local + "</b> as your storage provider.");
}
// Otherwise show the gallery for the files on the device
else
{
StorageFolder folder = KnownFolders.PicturesLibrary;
int page = 1;
int pageSize = 30;
// Parse GET parameters
if (request.Contains("?"))
{
Uri uri = new Uri("http://1.2.3.4:8000" + request);
var parameters = helper.ParseGetParametersFromUrl(uri);
try
{
// Find the folder that's specified in the parameters
folder = await StorageFolder.GetFolderFromPathAsync(parameters["folder"]);
if (parameters.ContainsKey("page"))
{
try
{
page = Convert.ToInt32(parameters["page"]);
}
catch (Exception) { }
}
if (parameters.ContainsKey("pageSize"))
{
try
{
pageSize = Convert.ToInt32(parameters["pageSize"]);
}
catch (Exception) { }
}
}
catch (Exception ex)
{
Debug.WriteLine("Exception finding folder: " + ex.Message);
folder = await folder.GetFolderAsync(AppSettings.FolderName);
// Log telemetry event about this exception
var events = new Dictionary <string, string> {
{ "WebServer", ex.Message }
};
TelemetryHelper.TrackEvent("FailedToGetFolderFromPath", events);
}
}
else
{
folder = await folder.GetFolderAsync(AppSettings.FolderName);
}
// Generate gallery page and write to stream
string galleryHtml = await helper.GenerateGallery(folder, page, pageSize);
html = helper.GeneratePage("Gallery", "Gallery", galleryHtml);
}
await WebHelper.WriteToStream(html, os);
}
// Request for API
else if (request.Contains("api"))
{
try
{
if (requestParts.Length > 2)
{
switch (requestParts[2].ToLower())
{
// An image from the gallery was requested
case "gallery":
var temp = request.Split(new string[] { "gallery/" }, StringSplitOptions.None);
// HTML decode the file path
string decodedPath = WebUtility.UrlDecode(temp[1]);
// Retrieve the file
StorageFile file = await StorageFile.GetFileFromPathAsync(decodedPath);
// Write the file to the stream
await WebHelper.WriteFileToStream(file, os);
break;
}
}
}catch (Exception ex)
{
Debug.WriteLine("Exception in web API: " + ex.Message);
// Log telemetry event about this exception
var events = new Dictionary <string, string> {
{ "WebServer", ex.Message }
};
TelemetryHelper.TrackEvent("FailedToProcessApiRequest", events);
}
}
// Request for a file that is in the Assets\Web folder (e.g. logo, css file)
else
{
using (Stream resp = os.AsStreamForWrite())
{
bool exists = true;
try
{
var folder = Windows.ApplicationModel.Package.Current.InstalledLocation;
// Map the requested path to Assets\Web folder
string filePath = @"Assets\Web" + request.Replace('/', '\\');
// Open the file and write it to the stream
using (Stream fs = await folder.OpenStreamForReadAsync(filePath))
{
string header = String.Format("HTTP/1.1 200 OK\r\n" +
"Content-Length: {0}\r\n{1}" +
"Connection: close\r\n\r\n",
fs.Length,
((request.Contains("css")) ? "Content-Type: text/css\r\n" : ""));
byte[] headerArray = Encoding.UTF8.GetBytes(header);
await resp.WriteAsync(headerArray, 0, headerArray.Length);
await fs.CopyToAsync(resp);
}
}
catch (FileNotFoundException ex)
{
exists = false;
// Log telemetry event about this exception
var events = new Dictionary <string, string> {
{ "WebServer", ex.Message }
};
TelemetryHelper.TrackEvent("FailedToOpenStream", events);
}
// Send 404 not found if can't find file
if (!exists)
{
byte[] headerArray = Encoding.UTF8.GetBytes(
"HTTP/1.1 404 Not Found\r\n" +
"Content-Length:0\r\n" +
"Connection: close\r\n\r\n");
await resp.WriteAsync(headerArray, 0, headerArray.Length);
}
await resp.FlushAsync();
}
}
}catch (Exception ex)
{
Debug.WriteLine("Exception in writeResponseAsync(): " + ex.Message);
Debug.WriteLine(ex.StackTrace);
// Log telemetry event about this exception
var events = new Dictionary <string, string> {
{ "WebServer", ex.Message }
};
TelemetryHelper.TrackEvent("FailedToWriteResponse", events);
try
{
// Try to send an error page back if there was a problem servicing the request
string html = helper.GeneratePage("Error", "Error", "There's been an error: " + ex.Message + "<br><br>" + ex.StackTrace);
await WebHelper.WriteToStream(html, os);
}
catch (Exception e)
{
TelemetryHelper.TrackException(e);
}
}
}
/// <summary>
/// Initializes the controller: Loads settings, starts web server, sets up the camera and storage providers,
/// tries to log into OneDrive (if OneDrive is selected), and starts the file upload and deletion timers
/// </summary>
/// <returns></returns>
public async Task Initialize()
{
try
{
// Load settings from file
XmlSettings = await AppSettings.RestoreAsync("Settings.xml");
// Create securitysystem-cameradrop sub folder if it doesn't exist
StorageFolder folder = KnownFolders.PicturesLibrary;
if (await folder.TryGetItemAsync(AppSettings.FolderName) == null)
{
await folder.CreateFolderAsync(AppSettings.FolderName);
}
// Start web server on port 8000
if (!Server.IsRunning)
{
Server.Start(8000);
}
Camera = CameraFactory.Get(XmlSettings.CameraType);
Storage = StorageFactory.Get(XmlSettings.StorageProvider);
await Camera.Initialize();
// Try to log into OneDrive using existing Access Token in settings file
if (Storage.GetType() == typeof(OneDrive))
{
var oneDrive = App.Controller.Storage as OneDrive;
if (oneDrive != null)
{
if (!oneDrive.IsLoggedIn())
{
try
{
await oneDrive.AuthorizeWithRefreshToken(XmlSettings.OneDriveRefreshToken);
}
catch (Exception ex)
{
Debug.WriteLine(ex.Message);
// Log telemetry event about this exception
var events = new Dictionary <string, string> {
{ "Controller", ex.Message }
};
TelemetryHelper.TrackEvent("FailedToLoginOneDrive", events);
}
}
}
}
this.alljoynManager = new AllJoynManager();
await this.alljoynManager.Initialize(this.Camera, this.Storage);
//Timer controlling camera pictures with motion
uploadPicturesTimer = new DispatcherTimer();
uploadPicturesTimer.Interval = TimeSpan.FromSeconds(uploadInterval);
uploadPicturesTimer.Tick += uploadPicturesTimer_Tick;
uploadPicturesTimer.Start();
//Timer controlling deletion of old pictures
deletePicturesTimer = new DispatcherTimer();
deletePicturesTimer.Interval = TimeSpan.FromHours(deleteInterval);
deletePicturesTimer.Tick += deletePicturesTimer_Tick;
deletePicturesTimer.Start();
IsInitialized = true;
}
catch (Exception ex)
{
Debug.WriteLine("Controller.Initialize() Error: " + ex.Message);
// Log telemetry event about this exception
var events = new Dictionary <string, string> {
{ "Controller", ex.Message }
};
TelemetryHelper.TrackEvent("FailedToInitialize", events);
}
}
/// <summary>
/// Invoked when the heartbeat timer ticks.
/// </summary>
void HeartbeatTimer_Tick(object sender, object e)
{
// Log telemetry event that the device is alive
TelemetryHelper.TrackMetric("DeviceHeartbeat", heartbeatInterval);
}