async void OnFileOpenButtonClick(object sender, RoutedEventArgs args) {
FileOpenPicker picker = new FileOpenPicker();
picker.FileTypeFilter.Add(".txt");
StorageFile storageFile = await picker.PickSingleFileAsync();
// If user presses Cancel, result is null
if (storageFile == null)
return;
Exception exception = null;
try {
using (IRandomAccessStream stream = await storageFile.OpenReadAsync()) {
using (DataReader dataReader = new DataReader(stream)) {
uint length = (uint)stream.Size;
await dataReader.LoadAsync(length);
txtbox.Text = dataReader.ReadString(length);
}
}
}
catch (Exception exc) {
exception = exc;
}
if (exception != null) {
MessageDialog msgdlg = new MessageDialog(exception.Message, "File Read Error");
await msgdlg.ShowAsync();
}
}
private async void ReadFromStreamButton_Click(object sender, RoutedEventArgs e)
{
StorageFile file = rootPage.sampleFile;
if (file != null)
{
try
{
using (IRandomAccessStream readStream = await file.OpenAsync(FileAccessMode.Read))
{
using (DataReader dataReader = new DataReader(readStream))
{
UInt64 size = readStream.Size;
if (size <= UInt32.MaxValue)
{
UInt32 numBytesLoaded = await dataReader.LoadAsync((UInt32)size);
string fileContent = dataReader.ReadString(numBytesLoaded);
rootPage.NotifyUser(String.Format("The following text was read from '{0}' using a stream:{1}{2}", file.Name, Environment.NewLine, fileContent), NotifyType.StatusMessage);
}
else
{
rootPage.NotifyUser(String.Format("File {0} is too big for LoadAsync to load in a single chunk. Files larger than 4GB need to be broken into multiple chunks to be loaded by LoadAsync.", file.Name), NotifyType.ErrorMessage);
}
}
}
}
catch (FileNotFoundException)
{
rootPage.NotifyUserFileNotExist();
}
}
else
{
rootPage.NotifyUserFileNotExist();
}
}
public async Task<IEnumerable<Event>> Read()
{
List<Event> events = null;
StorageFolder localFolder = ApplicationData.Current.LocalFolder;
try
{
StorageFile textFile = await localFolder.GetFileAsync("SavedContent");
events = new List<Event>();
using (IRandomAccessStream textStream = await textFile.OpenReadAsync())
{
using (DataReader textReader = new DataReader(textStream))
{
uint textLength = (uint)textStream.Size;
await textReader.LoadAsync(textLength);
string jsonContents = textReader.ReadString(textLength);
events = JsonConvert.DeserializeObject<IList<Event>>(jsonContents) as List<Event>;
}
return events;
}
}
catch (Exception ex)
{
return null;
}
}
private async Task<string> readHTTPMessage(DataReader dr)
{
// Make sure we are allowed to return early
dr.InputStreamOptions = InputStreamOptions.Partial;
// This is the value we will return
string ret = "";
// This is the amount of data ready to be read in
uint readyLen;
while (true)
{
// Wait until we've got a kilobyte, or the stream closed
readyLen = await dr.LoadAsync(1024 * 1024);
// Check to see if we actually have any data
if (readyLen > 0)
{
// Read in that string, append it to ret
ret += dr.ReadString(readyLen);
// Check for the "\r\n\r\n" at the end of messages
if (ret.Substring(ret.Length - 4, 4) == "\r\n\r\n")
break;
}
else
{
// If not, the connection is closed!
return ret;
}
}
// Finally, return that string
return ret;
}
public async void OnOpen()
{
try
{
var picker = new FileOpenPicker()
{
SuggestedStartLocation = PickerLocationId.DocumentsLibrary
};
picker.FileTypeFilter.Add(".txt");
StorageFile file = await picker.PickSingleFileAsync();
if (file != null)
{
IRandomAccessStreamWithContentType stream = await file.OpenReadAsync();
using (var reader = new DataReader(stream))
{
await reader.LoadAsync((uint)stream.Size);
text1.Text = reader.ReadString((uint)stream.Size);
}
}
}
catch (Exception ex)
{
var dlg = new MessageDialog(ex.Message, "Error");
await dlg.ShowAsync();
}
}
private async void ReadFromStreamButton_Click(object sender, RoutedEventArgs e)
{
try
{
rootPage.ResetScenarioOutput(OutputTextBlock);
StorageFile file = rootPage.sampleFile;
if (file != null)
{
using (IRandomAccessStream readStream = await file.OpenAsync(FileAccessMode.Read))
{
using (DataReader dataReader = new DataReader(readStream))
{
UInt64 size = readStream.Size;
if (size <= UInt32.MaxValue)
{
UInt32 numBytesLoaded = await dataReader.LoadAsync((UInt32)size);
string fileContent = dataReader.ReadString(numBytesLoaded);
OutputTextBlock.Text = "The following text was read from '" + file.Name + "' using a stream:" + Environment.NewLine + Environment.NewLine + fileContent;
}
else
{
OutputTextBlock.Text = "File " + file.Name + " is too big for LoadAsync to load in a single chunk. Files larger than 4GB need to be broken into multiple chunks to be loaded by LoadAsync.";
}
}
}
}
}
catch (FileNotFoundException)
{
rootPage.NotifyUserFileNotExist();
}
}
private async Task<string> DoCommand(string command)
{
StringBuilder strBuilder = new StringBuilder();
using (StreamSocket clientSocket = new StreamSocket())
{
await clientSocket.ConnectAsync(new HostName("192.168.9.108"), "9001");
using (DataWriter writer = new DataWriter(clientSocket.OutputStream))
{
writer.WriteString(command);
await writer.StoreAsync();
writer.DetachStream();
}
using (DataReader reader = new DataReader(clientSocket.InputStream))
{
reader.InputStreamOptions = InputStreamOptions.Partial;
await reader.LoadAsync(8192);
while (reader.UnconsumedBufferLength > 0)
{
strBuilder.Append(reader.ReadString(reader.UnconsumedBufferLength));
await reader.LoadAsync(8192);
}
reader.DetachStream();
}
}
return (strBuilder.ToString());
}
private async void ReadBlock_Click(object sender, RoutedEventArgs e)
{
var fx2Device = DeviceList.Current.GetSelectedDevice();
if (fx2Device == null)
{
rootPage.NotifyUser("Fx2 device not connected or accessible", NotifyType.ErrorMessage);
return;
}
var button = (Button)sender;
button.IsEnabled = false;
var dataReader = new DataReader(fx2Device.InputStream);
// load the data reader from the stream. For purposes of this
// sample, assume all messages read are < 64 bytes
int counter = readCounter++;
LogMessage("Read {0} begin", counter);
await dataReader.LoadAsync(64);
// Get the message string out of the buffer
var message = dataReader.ReadString(dataReader.UnconsumedBufferLength);
LogMessage("Read {0} end: {1}", counter, message);
button.IsEnabled = true;
}
public void ReadAllText(string filename, Action<string> completed)
{
StorageFolder localFolder =
ApplicationData.Current.LocalFolder;
IAsyncOperation<StorageFile> createOp =
localFolder.GetFileAsync(filename);
createOp.Completed = (asyncInfo1, asyncStatus1) =>
{
IStorageFile storageFile = asyncInfo1.GetResults();
IAsyncOperation<IRandomAccessStreamWithContentType>
openOp = storageFile.OpenReadAsync();
openOp.Completed = (asyncInfo2, asyncStatus2) =>
{
IRandomAccessStream stream = asyncInfo2.GetResults();
DataReader dataReader = new DataReader(stream);
uint length = (uint)stream.Size;
DataReaderLoadOperation loadOp =
dataReader.LoadAsync(length);
loadOp.Completed = (asyncInfo3, asyncStatus3) =>
{
string text = dataReader.ReadString(length);
dataReader.Dispose();
completed(text);
};
};
};
}
public static async Task<AppModel> DeserializeAppData()
{
StorageFolder localFolder = ApplicationData.Current.LocalFolder;
AppModel appModel = null;
try
{
// Getting JSON from file if it exists, or file not found exception if it does not
StorageFile textFile = await localFolder.GetFileAsync("app.json");
using (IRandomAccessStream textStream = await textFile.OpenReadAsync())
{
// Read text stream
using (DataReader textReader = new DataReader(textStream))
{
//get size
uint textLength = (uint)textStream.Size;
await textReader.LoadAsync(textLength);
// read it
string jsonContents = textReader.ReadString(textLength);
// deserialize back to our product!
appModel = JsonConvert.DeserializeObject<AppModel>(jsonContents);
}
}
}
catch (Exception ex)
{
throw;
}
return appModel;
}
async private void OpenGraphFile_Click(object sender, RoutedEventArgs e)
{
var picker = new FileOpenPicker();
picker.FileTypeFilter.Add(".txt");
picker.ViewMode = PickerViewMode.Thumbnail;
picker.SettingsIdentifier = "GraphPicker";
picker.CommitButtonText = "Select Files";
var selectedFile = await picker.PickSingleFileAsync();
using (IRandomAccessStream stream = await selectedFile.OpenReadAsync())
{
using (DataReader reader = new DataReader(stream))
{
uint length = (uint)stream.Size;
await reader.LoadAsync(length);
string[] s = reader.ReadString(length).Split('\r');
string[][] str = new string[s.Length][];
for (int i = 0; i < s.Length; i++)
str[i] = s[i].Replace('\n', ' ').Split(' ');
int n = int.Parse(s[0]);
int[,] adjMatrix = new int[n, n];
for (int i = 0; i < n; i++)
for (int j = 0; j < n; j++)
adjMatrix[i, j] = int.Parse(str[i + 1][j + 1]);
adjMatrix[0, 0] += 0;
graph = new Graph(adjMatrix, n);
}
}
}
public static async Task<bool> LoadFrom ( ObservableCollection<RecentData> datas )
{
try
{
StorageFile sf = await ApplicationData.Current.LocalFolder.GetFileAsync ( "data.dat" );
FileRandomAccessStream stream = await sf.OpenAsync ( FileAccessMode.Read ) as FileRandomAccessStream;
DataReader dr = new DataReader ( stream );
dr.UnicodeEncoding = Windows.Storage.Streams.UnicodeEncoding.Utf8;
dr.ByteOrder = ByteOrder.LittleEndian;
await dr.LoadAsync ( ( uint ) stream.Size );
int len = dr.ReadInt32 ();
for ( int i = 0; i < len; i++ )
{
RecentData data = new RecentData ();
uint srclen = dr.ReadUInt32 ();
data.Source = dr.ReadString ( srclen );
data.SourceIndex = dr.ReadInt32 ();
data.TargetIndex = dr.ReadInt32 ();
datas.Add ( data );
}
stream.Dispose ();
}
catch { return false; }
return true;
}
public async Task <string> ReadLogFile(string fileName)
{
if (fileName != this.FQP)
{
int index = fileName.IndexOf(DIRECTORY_NAME);
fileName = fileName.Substring(index);
var file = await Windows.Storage.ApplicationData.Current.LocalFolder.CreateFileAsync(fileName, CreationCollisionOption.OpenIfExists);
if (file == null)
{
return("");
}
return(await Windows.Storage.FileIO.ReadTextAsync(file));
}
if (_logFile != null)
{
using (var inputStream = _stream.GetInputStreamAt(0))
{
Windows.Storage.Streams.DataReader reader = new Windows.Storage.Streams.DataReader(inputStream);
await reader.LoadAsync((uint)_stream.Size);
string data = reader.ReadString((uint)_stream.Size);
reader.DetachStream();
return(data);
}
}
return("");
}
public async void LoadSettings()
{
try
{
string contents;
StorageFolder localFolder = ApplicationData.Current.LocalFolder;
StorageFile textFile = await localFolder.GetFileAsync("settingV2");
using (IRandomAccessStream textStream = await textFile.OpenReadAsync())
{
using (DataReader textReader = new DataReader(textStream))
{
uint textLength = (uint)textStream.Size;
await textReader.LoadAsync(textLength);
contents = textReader.ReadString(textLength);
}
}
string[] lines = contents.Split('\n');
bool.TryParse(lines[0], out AutoJoinChat);
bool.TryParse(lines[1], out LockLandscape);
bool.TryParse(lines[2], out LiveTilesEnabled);
}
catch { }
}
/// <summary>
/// Read string content from file.
/// </summary>
/// <param name="path">Location of file, separate by //.</param>
/// <param name="rootFolder"> </param>
/// <returns>Content of file.</returns>
public async Task<string> ReadFromFileAsync(string path, StorageFolder rootFolder = null)
{
if (path == null)
{
return null;
}
try
{
var file = await GetFileToReadAsync(path, rootFolder);
if (file == null)
{
return null;
}
var readStream = await file.OpenAsync(FileAccessMode.Read);
var inputStream = readStream.GetInputStreamAt(0);
var dataReader = new DataReader(inputStream);
var numBytesLoaded = await dataReader.LoadAsync((uint)readStream.Size);
var content = dataReader.ReadString(numBytesLoaded);
dataReader.DetachStream();
dataReader.Dispose();
inputStream.Dispose();
readStream.Dispose();
return content;
}
catch
{
return null;
}
}
private async void OnForegroundSocketClicked(object sender, RoutedEventArgs e)
{
socket = new StreamSocket();
HostName host = new HostName("localhost");
try
{
await socket.ConnectAsync(host, "1983");
isConnected = true;
while (isConnected)
{
try
{
DataReader reader;
using (reader = new DataReader(socket.InputStream))
{
// Set the DataReader to only wait for available data (so that we don't have to know the data size)
reader.InputStreamOptions = InputStreamOptions.Partial;
// The encoding and byte order need to match the settings of the writer we previously used.
reader.UnicodeEncoding = UnicodeEncoding.Utf8;
reader.ByteOrder = ByteOrder.LittleEndian;
// Send the contents of the writer to the backing stream.
// Get the size of the buffer that has not been read.
await reader.LoadAsync(256);
// Keep reading until we consume the complete stream.
while (reader.UnconsumedBufferLength > 0)
{
string readString = reader.ReadString(reader.UnconsumedBufferLength);
await Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
messages.Add(readString);
});
Debug.WriteLine(readString);
await reader.LoadAsync(256);
}
reader.DetachStream();
}
}
catch (Exception exc)
{
MessageDialog dialog = new MessageDialog("Error reading the data");
await dialog.ShowAsync();
}
}
}
catch (Exception exc)
{
MessageDialog dialog = new MessageDialog("Error connecting to the socket");
await dialog.ShowAsync();
}
}
public static async Task<string> LoadAndRemoveBOM(this StorageFile storageFile)
{
IRandomAccessStream readStream = await storageFile.OpenAsync(FileAccessMode.Read);
IInputStream inputSteam = readStream.GetInputStreamAt(0);
DataReader dataReader = new DataReader(inputSteam);
uint numBytesLoaded = await dataReader.LoadAsync((uint)readStream.Size);
string output = dataReader.ReadString(numBytesLoaded);
return output.Trim(UTF8_BYTE_ORDER_MARK.ToCharArray());
}
async public static Task<string> ReadAllTextAsync(this StorageFile storageFile)
{
var inputStream = await storageFile.OpenAsync(FileAccessMode.Read);
var readStream = inputStream.GetInputStreamAt(0);
var reader = new DataReader(readStream);
uint fileLength = await reader.LoadAsync((uint)inputStream.Size);
string content = reader.ReadString(fileLength);
return content;
}
private void ReadDataFromDevice(DataReader reader)
{
reader.InputStreamOptions = InputStreamOptions.Partial;
reader.UnicodeEncoding = Windows.Storage.Streams.UnicodeEncoding.Utf8;
var size = reader.UnconsumedBufferLength;
var message = reader.ReadString(size);
SendDataToDevice("Ack " + message);
ProcessMessage(message).Wait();
}
private async void InitializeConnection()
{
await _socket.ConnectAsync(new HostName("127.0.0.1"), "41337");
var dataWriter = new DataWriter(_socket.OutputStream);
var dataReader = new DataReader(_socket.InputStream);
var message = CreateHandshakeMessage();
dataWriter.WriteString(message);
var response = dataReader.ReadString(100);
}
/// <summary>
/// Gets intent and entities from a text string
/// </summary>
/// <returns>Unprocessed result from a server</returns>
public async Task<string> GetAsync()
{
return await Task.Run<string>(async () =>
{
try
{
var socket = new StreamSocket();
var writer = new DataWriter(socket.OutputStream);
var reader = new DataReader(socket.InputStream);
reader.InputStreamOptions = InputStreamOptions.Partial;
StringBuilder stringBuilder = new StringBuilder();
stringBuilder.AppendLine(String.Format("GET /message?q={0} HTTP/1.1", HttpUtility.UrlEncode(message)));
stringBuilder.AppendLine("Host: api.wit.ai");
stringBuilder.AppendLine(String.Format("Authorization: Bearer {0}", accessToken));
stringBuilder.AppendLine("");
string headers = stringBuilder.ToString();
byte[] headersPayload = Encoding.UTF8.GetBytes(headers);
await socket.ConnectAsync(new HostName("wit.ai"), "443", SocketProtectionLevel.SslAllowNullEncryption);
writer.WriteBytes(headersPayload);
WitLog.Log("Sending text...");
await writer.StoreAsync();
await writer.FlushAsync();
var count = await reader.LoadAsync(UInt16.MaxValue);
string response = reader.ReadString(count);
int bodyStartIndex = response.IndexOf("\r\n\r\n");
if (bodyStartIndex != -1)
{
string body = response.Substring(bodyStartIndex + 4);
WitLog.Log(body);
return body;
}
else
{
return null;
}
}
catch
{
return null;
}
});
}
public async Task <T> LoadASync(string FileName)
{
FileName = FileName + ".xml";
try
{
StorageFile file = null;
StorageFolder folder = GetFolder(storageType);
file = await folder.GetFileAsync(FileName);
//using (var readStream = await file.OpenAsync(FileAccessMode.Read))
//{
// Windows.Storage.Streams.DataReader reader = new Windows.Storage.Streams.DataReader(readStream);
// await reader.LoadAsync((uint)readStream.Size);
// string data = reader.ReadString((uint)readStream.Size);
// if (data == null)
// {
// }
//}
using (var readStream = await file.OpenAsync(FileAccessMode.Read))
{
//Stream inStream = Task.Run(() => readStream.AsStreamForRead()).Result;
//return (T)serializer.Deserialize(inStream);
var inStream = readStream.GetInputStreamAt(0);
Windows.Storage.Streams.DataReader reader = new Windows.Storage.Streams.DataReader(inStream);
await reader.LoadAsync((uint)readStream.Size);
string data = reader.ReadString((uint)readStream.Size);
reader.DetachStream();
MemoryStream ms = new MemoryStream(UTF8Encoding.UTF8.GetBytes(data));
DataContractJsonSerializer ser = new DataContractJsonSerializer(typeof(T));
T result = (T)ser.ReadObject(ms);
return(result);
}
}
catch (FileNotFoundException)
{
//file not existing is perfectly valid so simply return the default
return(default(T));
//throw;
}
catch (Exception)
{
//Unable to load contents of file
throw;
}
}
private async void Listener_ConnectionReceived(StreamSocketListener sender, StreamSocketListenerConnectionReceivedEventArgs args)
{
Debug.WriteLine("Connection Received on Port {0}", sender.Information.LocalPort);
StreamSocket streamSocket = args.Socket;
if (streamSocket != null)
{
DataReader reader = new DataReader(streamSocket.InputStream);
try
{
// Read first 4 bytes (length of the subsequent string).
uint sizeFieldCount = await reader.LoadAsync(sizeof(uint));
if (sizeFieldCount != sizeof(uint))
{
// The underlying socket was closed before we were able to read the whole data.
return;
}
// Read the length of the 'packet'.
uint length = reader.ReadUInt32();
uint actualLength = await reader.LoadAsync(length);
if (length != actualLength)
{
// The underlying socket was closed before we were able to read the whole data.
return;
}
string name = reader.ReadString(actualLength);
Speaker speaker = new Speaker()
{
Name = name,
Address = streamSocket.Information.RemoteAddress.DisplayName,
Status = "Connected",
Socket = streamSocket
};
await Windows.ApplicationModel.Core.CoreApplication.MainView.CoreWindow.Dispatcher.RunAsync(CoreDispatcherPriority.Normal,
() =>
{
Speakers.Add(speaker);
});
reader.DetachStream();
Debug.WriteLine("New speaker added " + name);
}
catch (Exception e)
{
Debug.WriteLine("Error in connection received: " + e);
}
}
}
public async Task<string> ReadAsync(string fileName)
{
var folder = ApplicationData.Current.LocalFolder;
var file = await folder.CreateFileAsync(fileName, CreationCollisionOption.OpenIfExists);
using (var stream = await file.OpenReadAsync())
using (var textReader = new DataReader(stream))
{
var textLength = (uint) stream.Size;
await textReader.LoadAsync(textLength);
return textReader.ReadString(textLength);
}
}
public async void Run(IBackgroundTaskInstance taskInstance)
{
var deferral = taskInstance.GetDeferral();
try
{
var details = taskInstance.TriggerDetails as SocketActivityTriggerDetails;
var socketInformation = details.SocketInformation;
switch (details.Reason)
{
case SocketActivityTriggerReason.SocketActivity:
var socket = socketInformation.StreamSocket;
DataReader reader = new DataReader(socket.InputStream);
reader.InputStreamOptions = InputStreamOptions.Partial;
await reader.LoadAsync(250);
var dataString = reader.ReadString(reader.UnconsumedBufferLength);
ShowToast(dataString);
socket.TransferOwnership(socketInformation.Id);
break;
case SocketActivityTriggerReason.KeepAliveTimerExpired:
socket = socketInformation.StreamSocket;
DataWriter writer = new DataWriter(socket.OutputStream);
writer.WriteBytes(Encoding.UTF8.GetBytes("Keep alive"));
await writer.StoreAsync();
writer.DetachStream();
writer.Dispose();
socket.TransferOwnership(socketInformation.Id);
break;
case SocketActivityTriggerReason.SocketClosed:
socket = new StreamSocket();
socket.EnableTransferOwnership(taskInstance.Task.TaskId, SocketActivityConnectedStandbyAction.Wake);
if (ApplicationData.Current.LocalSettings.Values["hostname"] == null)
{
break;
}
var hostname = (String)ApplicationData.Current.LocalSettings.Values["hostname"];
var port = (String)ApplicationData.Current.LocalSettings.Values["port"];
await socket.ConnectAsync(new HostName(hostname), port);
socket.TransferOwnership(socketId);
break;
default:
break;
}
deferral.Complete();
}
catch (Exception exception)
{
ShowToast(exception.Message);
deferral.Complete();
}
}
public async Task<String> ReadTextAsync(string filename)
{
StorageFolder localFolder = ApplicationData.Current.LocalFolder;
IStorageFile storageFile = await localFolder.GetFileAsync(filename);
using(IRandomAccessStream stream = await storageFile.OpenReadAsync())
{
using(DataReader dataReader = new DataReader(stream))
{
uint length = (uint)stream.Size;
await dataReader.LoadAsync(length);
return dataReader.ReadString(length);
}
}
}
private async void ReadviaStream_Click(object sender, RoutedEventArgs e)
{
var stream = await sampleFile.OpenAsync(Windows.Storage.FileAccessMode.ReadWrite);
var size = stream.Size;
using (var inputStream = stream.GetInputStreamAt(0))
{
// Add code to use the stream to read your file
DataReader dataReader = new DataReader(inputStream);
uint numBytesLoaded = await dataReader.LoadAsync((uint)size);
string text = dataReader.ReadString(numBytesLoaded);
txtbox.Text = text;
}
}
internal static async Task<string> ReadTextAsync(this StorageFile file)
{
using (var fs = await file.OpenAsync(FileAccessMode.Read))
{
using (var inStream = fs.GetInputStreamAt(0))
{
using (var dataReader = new DataReader(inStream))
{
await dataReader.LoadAsync((uint)fs.Size);
var data = dataReader.ReadString((uint)fs.Size);
dataReader.DetachStream();
return data;
}
}
}
}
public static async void LoadFromFile() {
var loadPicker = new Windows.Storage.Pickers.FileOpenPicker();
loadPicker.ViewMode = Windows.Storage.Pickers.PickerViewMode.Thumbnail;
loadPicker.SuggestedStartLocation = Windows.Storage.Pickers.PickerLocationId.DocumentsLibrary;
// Dropdown of file types the user can save the file as
loadPicker.FileTypeFilter.Add(".json");
StorageFile file = await loadPicker.PickSingleFileAsync();
if (file != null) {
var inputStream = await file.OpenAsync(FileAccessMode.Read);
var readStream = inputStream.GetInputStreamAt(0);
var reader = new DataReader(readStream);
uint fileLength = await reader.LoadAsync((uint)inputStream.Size);
dataStore.ImportFromJson(reader.ReadString(fileLength));
}
}
internal static async Task<String> ReadFile(string filename)
{
string contents;
StorageFolder localFolder = ApplicationData.Current.LocalFolder;
StorageFile textFile = await localFolder.GetFileAsync(filename);
using (IRandomAccessStream textStream = await textFile.OpenReadAsync())
{
using (DataReader textReader = new DataReader(textStream))
{
uint textLength = (uint)textStream.Size;
await textReader.LoadAsync(textLength);
contents = textReader.ReadString(textLength);
}
}
return contents;
}
public async Task<string> ReadFile(string file)
{
try
{
var storageFile = await ApplicationData.Current.LocalFolder.GetFileAsync(file);
IRandomAccessStream readStream = await storageFile.OpenAsync(FileAccessMode.Read);
// Read the file to an IInputStream stream, then get and load the DataReader.
IInputStream inputStream = readStream.GetInputStreamAt(0);
DataReader dataReader = new DataReader(inputStream);
uint numBytesLoaded = await dataReader.LoadAsync((uint)readStream.Size);
return dataReader.ReadString(numBytesLoaded);
}
catch (FileNotFoundException)
{
return null;
}
}
async Task<string> ReadTextAsync(StorageFile file)
{
#if NETFX_CORE
var text = await FileIO.ReadTextAsync(file);
#else
var text = default(string);
using (var stream = await file.OpenReadAsync())
{
var size = stream.Size;
using (var inputStream = stream.GetInputStreamAt(0))
{
var dataReader = new DataReader(inputStream);
uint numBytesLoaded = await dataReader.LoadAsync((uint)size);
text = dataReader.ReadString(numBytesLoaded);
}
}
#endif
return text;
}
private void WebSocket_MessageReceived(Windows.Networking.Sockets.MessageWebSocket sender, Windows.Networking.Sockets.MessageWebSocketMessageReceivedEventArgs args)
{
try
{
using (Windows.Storage.Streams.DataReader dataReader = args.GetDataReader())
{
dataReader.UnicodeEncoding = Windows.Storage.Streams.UnicodeEncoding.Utf8;
string message = dataReader.ReadString(dataReader.UnconsumedBufferLength);
Debug.Log("Message received from MessageWebSocket: " + message);
cmds.Enqueue(message);
//m_Socket.Dispose();
}
}
catch (Exception ex)
{
Windows.Web.WebErrorStatus webErrorStatus = Windows.Networking.Sockets.WebSocketError.GetStatus(ex.GetBaseException().HResult);
// Add additional code here to handle exceptions.
}
}
public async void StartReader(ConnectedPeer connectedPeer)
{
try
{
using (var socketReader = new Windows.Storage.Streams.DataReader(connectedPeer._socket.InputStream))
{
// Read the message sent by the remote peer
uint bytesRead = await socketReader.LoadAsync(sizeof(uint));
if (bytesRead > 0)
{
uint strLength = (uint)socketReader.ReadUInt32();
bytesRead = await socketReader.LoadAsync(strLength);
if (bytesRead > 0)
{
String message = socketReader.ReadString(strLength);
OnRaiseMessageEvent(new MessageEventArgs("Got message: " + message));
StartReader(connectedPeer); // Start another reader
}
else
{
OnRaiseSocketErrorEvent(new SocketEventArgs("The remote side closed the socket"));
}
}
else
{
OnRaiseSocketErrorEvent(new SocketEventArgs("The remote side closed the socket"));
}
socketReader.DetachStream();
}
}
catch (Exception e)
{
if (!connectedPeer._socketClosed)
{
OnRaiseSocketErrorEvent(new SocketEventArgs("Reading from socket failed: " + e.Message));
}
}
}
private async void Sck_MessageReceived(MessageWebSocket sender, MessageWebSocketMessageReceivedEventArgs args)
{
//[email protected]("Message received " + args);
if (args.MessageType == SocketMessageType.Utf8)
{
Windows.Storage.Streams.DataReader messageReader = args.GetDataReader();
messageReader.UnicodeEncoding = UnicodeEncoding.Utf8;
string messageString = messageReader.ReadString(messageReader.UnconsumedBufferLength);
com.codename1.io.websocket.WebSocket.messageReceived(id, messageString);
}
else
{
Windows.Storage.Streams.IInputStream readStream = args.GetDataStream();
byte[] readBuffer = new byte[4096];
try
{
while (true)
{
if (sender != sck)
{
return;
}
IBuffer res = await readStream.ReadAsync(readBuffer.AsBuffer(), (uint)readBuffer.Length, 0);
if (res.Length == 0)
{
return;
}
byte[] resArr = new byte[res.Length];
res.CopyTo(resArr);
com.codename1.io.websocket.WebSocket.messageReceived(1, resArr);
}
} catch (Exception ex)
{
com.codename1.io.websocket.WebSocket.errorReceived(id, ex.Message, ex.HResult);
}
}
}
private async Task TryPostJsonAsync()
{
try
{
// Construct the HttpClient and Uri. This endpoint is for test purposes only.
//var myFilter = new Windows.Web.Http.Filters.HttpBaseProtocolFilter();
//myFilter.AllowUI = false;
//Windows.Web.Http.Filters.HttpBaseProtocolFilter filter = new Windows.Web.Http.Filters.HttpBaseProtocolFilter();
//Windows.Storage.StorageFolder storageFolder = KnownFolders.DocumentsLibrary;
fileOpenPicker.FileTypeFilter.Add(".json");
/*fileOpenPicker.FileTypeFilter.Add(".txt");
* Windows.Storage.StorageFile credentialsFile = await fileOpenPicker.PickSingleFileAsync();
* string text = await Windows.Storage.FileIO.ReadTextAsync(credentialsFile);
* string username = text.Split(',')[0];
* string password = text.Split(',')[1];
* string domain = text.Split(',')[2];*/
HttpClientHandler handler = new HttpClientHandler();
handler.Credentials = new NetworkCredential("", "", "");
System.Net.Http.HttpClient httpClient = new System.Net.Http.HttpClient(handler);
httpClient.DefaultRequestHeaders.Clear();
httpClient.DefaultRequestHeaders.Accept.Add(new System.Net.Http.Headers.MediaTypeWithQualityHeaderValue("application/json"));
Uri uri = new Uri("https://prodigalcompany.com/npjTest/SurveyStuff/testSurveyFile.json");
// Construct the JSON to post.
//fileOpenPicker.FileTypeChoices.Add("JSON", new List<string>() { ".json" });
IStorageFile jsonFile = await fileOpenPicker.PickSingleFileAsync();
IRandomAccessStream stream = await jsonFile.OpenAsync(FileAccessMode.Read);
System.Net.Http.MultipartFormDataContent postContent = new MultipartFormDataContent();
if (stream != null)
{
using (var dataReader = new Windows.Storage.Streams.DataReader(stream))
{
uint numBytesLoaded = await dataReader.LoadAsync((uint)stream.Size);
string jsonText = dataReader.ReadString(numBytesLoaded);
System.Net.Http.StringContent streamContent = new System.Net.Http.StringContent(jsonText);
streamContent.Headers.ContentType = new System.Net.Http.Headers.MediaTypeHeaderValue("application/json");
postContent.Add(streamContent);
System.Net.Http.HttpResponseMessage httpResponseMessage = await httpClient.PostAsync(
"https://prodigalcompany.com/npjTest/SurveyStuff/testSurveyFile.json",
postContent);
// Make sure the post succeeded, and write out the response.
httpResponseMessage.EnsureSuccessStatusCode();
var httpResponseBody = await httpResponseMessage.Content.ReadAsStringAsync();
Debug.WriteLine(httpResponseBody);
}
}
else
{
Debug.WriteLine("stream is NULL.");
}
//HttpStringContent content = await jsonFile.OpenReadAsync();
// Post the JSON and wait for a response.
}
catch (Exception ex)
{
// Write out any exceptions.
Debug.WriteLine(ex);
}
}
private async Task <string> ExecuteCommandLineString(string CommandString)
{
const string CommandLineProcesserExe = "c:\\windows\\system32\\cmd.exe";
const uint CommandStringResponseBufferSize = 8192;
string currentDirectory = "C:\\";
StringBuilder textOutput = new StringBuilder((int)CommandStringResponseBufferSize);
uint bytesLoaded = 0;
if (string.IsNullOrWhiteSpace(CommandString))
{
return("");
}
var commandLineText = CommandString.Trim();
var standardOutput = new Windows.Storage.Streams.InMemoryRandomAccessStream();
var standardError = new Windows.Storage.Streams.InMemoryRandomAccessStream();
var options = new Windows.System.ProcessLauncherOptions {
StandardOutput = standardOutput,
StandardError = standardError
};
try {
var args = "/C \"cd \"" + currentDirectory + "\" & " + commandLineText + "\"";
var result = await Windows.System.ProcessLauncher.RunToCompletionAsync(CommandLineProcesserExe, args, options);
//First write std out
using (var outStreamRedirect = standardOutput.GetInputStreamAt(0)) {
using (var dataReader = new Windows.Storage.Streams.DataReader(outStreamRedirect)) {
while ((bytesLoaded = await dataReader.LoadAsync(CommandStringResponseBufferSize)) > 0)
{
textOutput.Append(dataReader.ReadString(bytesLoaded));
}
new System.Threading.ManualResetEvent(false).WaitOne(10);
if ((bytesLoaded = await dataReader.LoadAsync(CommandStringResponseBufferSize)) > 0)
{
textOutput.Append(dataReader.ReadString(bytesLoaded));
}
}
}
//Then write std err
using (var errStreamRedirect = standardError.GetInputStreamAt(0)) {
using (var dataReader = new Windows.Storage.Streams.DataReader(errStreamRedirect)) {
while ((bytesLoaded = await dataReader.LoadAsync(CommandStringResponseBufferSize)) > 0)
{
textOutput.Append(dataReader.ReadString(bytesLoaded));
}
new System.Threading.ManualResetEvent(false).WaitOne(10);
if ((bytesLoaded = await dataReader.LoadAsync(CommandStringResponseBufferSize)) > 0)
{
textOutput.Append(dataReader.ReadString(bytesLoaded));
}
}
}
return(textOutput.ToString());
} catch (UnauthorizedAccessException uex) {
return("ERROR - " + uex.Message + "\n\nCmdNotEnabled");
} catch (Exception ex) {
return("ERROR - " + ex.Message + "\n");
}
}