/// <summary>
/// Handles the event raised by ClientNetwork when data is received <seealso cref="ClientNetwork.DataReceived"/>
/// </summary>
/// <param name="o">Always received as null, ignored</param>
/// <param name="e">Contains the header and data received from the server by ClientNetwork <seealso cref="DataReceivedEventArgs"/></param>
public void DataReceivedHandler(object o, DataReceivedEventArgs e)
{
switch (e.Header.DataType)
{
case Network.DataTypes.InstantMessage:
string fromName = "User Unknown";
foreach (Network.BuddyListData bud in cmbUser.Items)
if (bud.userID == e.Header.FromID)
fromName = bud.username;
txtHistory.Text += fromName + ": " + System.Text.UnicodeEncoding.Unicode.GetString(e.Data) + "\r\n";
break;
case Network.DataTypes.WhiteBoard:
break;
case Network.DataTypes.BuddyListUpdate:
Network.BuddyListData[] bldArray = Network.BytesToBuddyListData(e.Data);
foreach(Network.BuddyListData bld in bldArray)
{
for (int i = cmbUser.Items.Count - 1; i >= 0; i--)
{
if (((Network.BuddyListData)cmbUser.Items[i]).userID == bld.userID)
cmbUser.Items.RemoveAt(i);
}
if (bld.userState == Network.UserState.Online)
cmbUser.Items.Add(bld);
}
break;
}
}
/// <summary>
/// Message pump for the network
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void ClientNetwork_DataReceived(object sender, DataReceivedEventArgs e)
{
if (InvokeRequired)
this.Invoke(new ClientNetwork_DataReceivedDelegate(ClientNetwork_DataReceived), new object[] {sender, e});
else
{
switch (e.Header.DataType)
{
case Network.DataTypes.BuddyListUpdate:
Network.BuddyListData[] bld = Network.BytesToBuddyListData(e.Data);
foreach (Network.BuddyListData bd in bld)
{
for ( int i = 0 ; i < lstBuddyList.Items.Count; i++ )
{
if (((Network.BuddyListData)lstBuddyList.Items[i]).userID == bd.userID)
{
bd.Tag = ((Network.BuddyListData)lstBuddyList.Items[i]).Tag;
lstBuddyList.Items.RemoveAt(i);
i = lstBuddyList.Items.Count;
}
}
switch (bd.userState)
{
case SDCSCommon.Network.UserState.Online:
lstBuddyList.Items.Add(bd);
break;
case SDCSCommon.Network.UserState.Offline:
bd.username = "******" + bd.username;
lstBuddyList.Items.Add(bd);
break;
}
}
break;
case Network.DataTypes.InstantMessage:
foreach (Network.BuddyListData buddyDat in lstBuddyList.Items)
if (buddyDat.userID == e.Header.FromID)
{
createIMWindow(buddyDat, false);
((IMForm)buddyDat.Tag).recIM(System.Text.UnicodeEncoding.Unicode.GetString(e.Data));
}
break;
case Network.DataTypes.Logout: // ToDo: Clear IM Windows and the buddy list
MessageBox.Show("You have been logged out because: " + System.Text.UnicodeEncoding.Unicode.GetString(e.Data));
showLogin();
break;
}
}
}
/// <summary>
/// Function for the listening thread to live in
/// </summary>
private static void listeningFunc()
{
// Records the last time a byte was received so we can check for a read timeout
System.DateTime lastRead;
// Loop for the lifetime of the thread
while (true)
{
while (connectionStream.DataAvailable != true)
{
if (connected == false)
return;
if (System.DateTime.Now - lastActivity > System.TimeSpan.FromMilliseconds(KEEP_ALIVE_TIME))
sendKeepAlive();
Thread.Sleep(100);
}
// Get the header
byte[] headerBuffer = new byte[Network.HEADER_SIZE];
lastRead = System.DateTime.Now;
for (int i = 0; i < Network.HEADER_SIZE; i++)
{
while (connectionStream.DataAvailable != true)
{
if (connected == false)
return;
if (System.DateTime.Now - lastRead > System.TimeSpan.FromMilliseconds(MAX_READ_WAIT_TIME))
Disconnect(true);
Thread.Sleep(100);
}
headerBuffer[i] = (byte)connectionStream.ReadByte();
lastRead = System.DateTime.Now;
}
// Get the data
Network.Header head = Network.bytesToHeader(headerBuffer);
byte[] data = new byte[head.Length];
for (int i = 0; i < head.Length; i++)
{
while (connectionStream.DataAvailable != true)
{
if (connected == false)
return;
if (System.DateTime.Now - lastRead > System.TimeSpan.FromMilliseconds(MAX_READ_WAIT_TIME))
Disconnect(true);
Thread.Sleep(100);
}
data[i] = (byte)connectionStream.ReadByte();
lastRead = System.DateTime.Now;
}
// Raise the DataReceivedEvent to let the gui know new data has arrived
DataReceivedEventArgs eventArgs = new DataReceivedEventArgs();
eventArgs.Header = head;
eventArgs.Data = data;
DataReceived(null, eventArgs);
// Sleep to let other threads do their thing
Thread.Sleep(100);
lastActivity = System.DateTime.Now;
}
}
/// <summary>
/// Call to disconnect from the server.
/// </summary>
/// <remarks>Always call disconnect before exiting the program. Failure to do so could cause a zombie thread.
/// Also note that this sets the <see cref="Client.ClientNetwork.Username">Username</see> to blank and makes <see cref="Client.ClientNetwork.Connected">Connected</see> false.</remarks>
/// <example>Always call this function on exit.
/// <code>protected override void Dispose( bool disposing )
/// {
/// // Always call this before exiting the program
/// ClientNetwork.Disconnect();
/// }</code></example>
public static void Disconnect(bool forced)
{
try
{
// Try to close the stream
connectionStream.Close();
}
catch
{}
username = "";
connected = false;
if (forced)
{
Network.Header logoffHeader = new SDCSCommon.Network.Header();
logoffHeader.DataType = Network.DataTypes.Logout;
logoffHeader.Encrypted = false;
logoffHeader.Length = 0;
DataReceivedEventArgs e = new DataReceivedEventArgs();
e.Header = logoffHeader;
e.Data = System.Text.UnicodeEncoding.Unicode.GetBytes("Lost connection to server");
DataReceived(null, e);
}
try
{
// Try to kill the thread
listeningThread.Abort();
}
catch
{}
}
private async void Agent_OnDataReceived(object sender, DataReceivedEventArgs e)
{
await Dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.High, () =>
{
this.ms.Seek(0, SeekOrigin.Begin);
this.ms.Write(e.Buffer, 0, e.Buffer.Length);
this.ms.Seek(0, SeekOrigin.Begin);
img.SetSource(ms.AsRandomAccessStream());
pic.Source = img;
if(web.Visibility == Visibility.Visible)
{
web.Visibility = Visibility.Collapsed;
}
pic.Visibility = Visibility.Visible;
}
);
}
// Ошибка
private static void p_ErrorDataReceived(object sender, DataReceivedEventArgs e)
{
}
/// <summary>
/// Output error from python script
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
static void proc_ErrorDataReceived(object sender, DataReceivedEventArgs e)
{
Console.WriteLine("Error: {0}", e.Data);
}
