public void GrantChannelAccess(IRDPSRAPIVirtualChannel channel)
{
if (channel == null)
{
throw new ArgumentNullException("channel");
}
lock (grantedVirtualChannels)
{
// do nothing if already granted
if (grantedVirtualChannels.ContainsKey(channel.Name))
{
Marshal.ReleaseComObject(channel);
return;
}
// add the channel
grantedVirtualChannels.Add(channel.Name, channel);
}
// grant channel access to all established connections (best effort)
int[] attendeeIds;
lock (connectionLock)
{
attendeeIds = new int[connectedAttendeeIds.Count];
connectedAttendeeIds.CopyTo(attendeeIds, 0);
}
foreach (var attendeeId in attendeeIds)
{
try { channel.SetAccess(attendeeId, CHANNEL_ACCESS_ENUM.CHANNEL_ACCESS_ENUM_SENDRECEIVE); }
catch { }
}
}
public static UserData FromAttendee(IRDPSRAPIAttendee attendee)
{
if (attendee == null)
{
throw new ArgumentNullException("attendee");
}
// get the attendee's invitation
var invitation = attendee.Invitation;
try
{
// find the user data that corresponds to the given connection string
UserData data;
lock (dataLock)
if (!byConnectionString.TryGetValue(invitation.ConnectionString, out data))
{
return(null);
}
// remove a pending connection or ensure the attendee is connected
PendingConnection pendingConnection;
lock (data.connectionLock)
{
if (!data.pendingConnections.TryGetValue(attendee.RemoteName, out pendingConnection))
{
return(data.connectedAttendeeIds.Contains(attendee.Id) ? data : null);
}
data.pendingConnections.Remove(attendee.RemoteName);
data.connectedAttendeeIds.Add(attendee.Id);
}
pendingConnection.TimeoutTimer.Dispose();
// set the initial control level
if (pendingConnection.InitialControlLevel != CTRL_LEVEL.CTRL_LEVEL_INVALID)
{
attendee.ControlLevel = pendingConnection.InitialControlLevel;
}
// enable all virtual channels
IRDPSRAPIVirtualChannel[] channels;
lock (data.grantedVirtualChannels)
{
channels = new IRDPSRAPIVirtualChannel[data.grantedVirtualChannels.Values.Count];
data.grantedVirtualChannels.Values.CopyTo(channels, 0);
}
foreach (var channel in channels)
{
try { channel.SetAccess(attendee.Id, CHANNEL_ACCESS_ENUM.CHANNEL_ACCESS_ENUM_SENDRECEIVE); }
catch { }
}
// return the data
return(data);
}
finally { Marshal.ReleaseComObject(invitation); }
}
