private async Task <IActionResult> InitiateRemoteControl(string deviceID, string orgID)
{
var targetDevice = AgentHub.ServiceConnections.FirstOrDefault(x =>
x.Value.OrganizationID == orgID &&
x.Value.ID.ToLower() == deviceID.ToLower());
if (targetDevice.Value != null)
{
if (User.Identity.IsAuthenticated &&
!DataService.DoesUserHaveAccessToDevice(targetDevice.Value.ID, DataService.GetUserByNameWithOrg(User.Identity.Name)))
{
return(Unauthorized());
}
var currentUsers = CasterHub.SessionInfoList.Count(x => x.Value.OrganizationID == orgID);
if (currentUsers >= AppConfig.RemoteControlSessionLimit)
{
return(BadRequest("There are already the maximum amount of active remote control sessions for your organization."));
}
var existingSessions = CasterHub.SessionInfoList
.Where(x => x.Value.DeviceID == targetDevice.Value.ID)
.Select(x => x.Key)
.ToList();
await AgentHubContext.Clients.Client(targetDevice.Key).SendAsync("RemoteControl", Request.HttpContext.Connection.Id, targetDevice.Key);
bool remoteControlStarted()
{
return(!CasterHub.SessionInfoList.Values
.Where(x => x.DeviceID == targetDevice.Value.ID)
.All(x => existingSessions.Contains(x.CasterSocketID)));
};
if (!await TaskHelper.DelayUntilAsync(remoteControlStarted, TimeSpan.FromSeconds(30)))
{
return(StatusCode(408, "The remote control process failed to start in time on the remote device."));
}
else
{
var rcSession = CasterHub.SessionInfoList.Values.LastOrDefault(x => x.DeviceID == targetDevice.Value.ID && !existingSessions.Contains(x.CasterSocketID));
var otp = RemoteControlFilterAttribute.GetOtp(targetDevice.Value.ID);
return(Ok($"{HttpContext.Request.Scheme}://{Request.Host}/RemoteControl?casterID={rcSession.CasterSocketID}&serviceID={targetDevice.Key}&fromApi=true&otp={Uri.EscapeDataString(otp)}"));
}
}
else
{
return(BadRequest("The target device couldn't be found."));
}
}
public async Task <Task> SendScreenCastRequestToDevice(string screenCasterID, string requesterName, int remoteControlMode, string otp)
{
if ((RemoteControlMode)remoteControlMode == RemoteControlMode.Normal)
{
if (!CasterHub.SessionInfoList.Any(x => x.Value.AttendedSessionID == screenCasterID))
{
return(Clients.Caller.SendAsync("SessionIDNotFound"));
}
screenCasterID = CasterHub.SessionInfoList.First(x => x.Value.AttendedSessionID == screenCasterID).Value.CasterSocketID;
}
if (!CasterHub.SessionInfoList.TryGetValue(screenCasterID, out var sessionInfo))
{
return(Clients.Caller.SendAsync("SessionIDNotFound"));
}
SessionInfo = sessionInfo;
ScreenCasterID = screenCasterID;
RequesterName = requesterName;
Mode = (RemoteControlMode)remoteControlMode;
string orgId = null;
if (Context?.User?.Identity?.IsAuthenticated == true)
{
orgId = DataService.GetUserByID(Context.UserIdentifier).OrganizationID;
var currentUsers = CasterHub.SessionInfoList.Count(x =>
x.Key != screenCasterID &&
x.Value.OrganizationID == orgId);
if (currentUsers >= AppConfig.RemoteControlSessionLimit)
{
await Clients.Caller.SendAsync("ShowMessage", "Max number of concurrent sessions reached.");
Context.Abort();
return(Task.CompletedTask);
}
SessionInfo.OrganizationID = orgId;
SessionInfo.RequesterUserName = Context.User.Identity.Name;
SessionInfo.RequesterSocketID = Context.ConnectionId;
}
DataService.WriteEvent(new EventLog()
{
EventType = EventType.Info,
TimeStamp = DateTimeOffset.Now,
Message = $"Remote control session requested. " +
$"Login ID (if logged in): {Context?.User?.Identity?.Name}. " +
$"Machine Name: {SessionInfo.MachineName}. " +
$"Requester Name (if specified): {requesterName}. " +
$"Connection ID: {Context.ConnectionId}. User ID: {Context.UserIdentifier}. " +
$"Screen Caster ID: {screenCasterID}. " +
$"Mode: {(RemoteControlMode)remoteControlMode}. " +
$"Requester IP Address: " + Context?.GetHttpContext()?.Connection?.RemoteIpAddress?.ToString(),
OrganizationID = orgId
});
if (Mode == RemoteControlMode.Unattended)
{
SessionInfo.Mode = RemoteControlMode.Unattended;
var deviceID = AgentHub.ServiceConnections[SessionInfo.ServiceID].ID;
if ((!string.IsNullOrWhiteSpace(otp) &&
RemoteControlFilterAttribute.OtpMatchesDevice(otp, deviceID))
||
(Context.User.Identity.IsAuthenticated &&
DataService.DoesUserHaveAccessToDevice(deviceID, Context.UserIdentifier)))
{
return(CasterHubContext.Clients.Client(screenCasterID).SendAsync("GetScreenCast", Context.ConnectionId, requesterName, AppConfig.RemoteControlNotifyUser));
}
else
{
return(Clients.Caller.SendAsync("Unauthorized"));
}
}
else
{
SessionInfo.Mode = RemoteControlMode.Normal;
_ = Clients.Caller.SendAsync("RequestingScreenCast");
return(CasterHubContext.Clients.Client(screenCasterID).SendAsync("RequestScreenCast", Context.ConnectionId, requesterName, AppConfig.RemoteControlNotifyUser));
}
}
