public static async Task HandleWebSocketRequestAsync(HttpContext context)
{
//
// Make sure we get a good ID
//
if (!context.Request.Query.TryGetValue("id", out var idValues))
{
context.Response.StatusCode = StatusCodes.Status400BadRequest;
return;
}
var id = idValues.FirstOrDefault();
if (id == null || id.Length != 32)
{
context.Response.StatusCode = StatusCodes.Status400BadRequest;
return;
}
//
// Find the pending session
//
if (!pendingSessions.TryRemove(id, out var pendingSession))
{
context.Response.StatusCode = StatusCodes.Status400BadRequest;
return;
}
//
// Reject the session if it's old
//
if ((DateTime.UtcNow - pendingSession.RequestTimeUtc) > SessionTimeout)
{
context.Response.StatusCode = StatusCodes.Status400BadRequest;
return;
}
//
// OK, Run
//
var token = CancellationToken.None;
var webSocket = await context.WebSockets.AcceptWebSocketAsync("ooui");
var session = new Ooui.UI.Session(webSocket, pendingSession.Element, token);
await session.RunAsync().ConfigureAwait(false);
}
public static async Task HandleWebSocketRequestAsync(HttpContext context)
{
void BadRequest(string message)
{
context.Response.StatusCode = StatusCodes.Status400BadRequest;
context.Response.ContentType = "text/plain; charset=utf-8";
using (var sw = new System.IO.StreamWriter(context.Response.Body)) {
sw.WriteLine(message);
}
}
//
// Make sure we get a good ID
//
if (!context.Request.Query.TryGetValue("id", out var idValues))
{
BadRequest("Missing `id`");
return;
}
var id = idValues.LastOrDefault();
if (id == null || id.Length != 32)
{
BadRequest("Invalid `id`");
return;
}
//
// Clear old sessions
//
var toClear = activeSessions.Where(x => (DateTime.UtcNow - x.Value.LastConnectTimeUtc) > SessionTimeout).ToList();
foreach (var c in toClear)
{
activeSessions.TryRemove(c.Key, out var _);
}
//
// Find the pending session
//
if (!activeSessions.TryGetValue(id, out var activeSession))
{
BadRequest("Unknown `id`");
return;
}
activeSession.LastConnectTimeUtc = DateTime.UtcNow;
//
// Set the element's dimensions
//
if (!context.Request.Query.TryGetValue("w", out var wValues) || wValues.Count < 1)
{
BadRequest("Missing `w`");
return;
}
if (!context.Request.Query.TryGetValue("h", out var hValues) || hValues.Count < 1)
{
BadRequest("Missing `h`");
return;
}
var icult = System.Globalization.CultureInfo.InvariantCulture;
if (!double.TryParse(wValues.Last(), System.Globalization.NumberStyles.Any, icult, out var w))
{
w = 640;
}
if (!double.TryParse(hValues.Last(), System.Globalization.NumberStyles.Any, icult, out var h))
{
h = 480;
}
//
// OK, Run
//
var token = CancellationToken.None;
var webSocket = await context.WebSockets.AcceptWebSocketAsync("ooui");
var session = new Ooui.UI.Session(webSocket, activeSession.Element, w, h, token);
await session.RunAsync().ConfigureAwait(false);
}
public static async Task HandleWebSocketRequestAsync(HttpContext context)
{
void BadRequest(string message)
{
context.Response.StatusCode = StatusCodes.Status400BadRequest;
context.Response.ContentType = "text/plain; charset=utf-8";
using (var sw = new System.IO.StreamWriter(context.Response.Body)) {
sw.WriteLine(message);
}
}
//
// Make sure we get a good ID
//
if (!context.Request.Query.TryGetValue("id", out var idValues))
{
BadRequest("Missing `id`");
return;
}
var id = idValues.LastOrDefault();
if (id == null || id.Length != 32)
{
BadRequest("Invalid `id`");
return;
}
//
// Find the pending session
//
if (!pendingSessions.TryRemove(id, out var pendingSession))
{
BadRequest("Unknown `id`");
return;
}
//
// Reject the session if it's old
//
if ((DateTime.UtcNow - pendingSession.RequestTimeUtc) > SessionTimeout)
{
BadRequest("Old `id`");
return;
}
//
// Set the element's dimensions
//
if (!context.Request.Query.TryGetValue("w", out var wValues) || wValues.Count < 1)
{
BadRequest("Missing `w`");
return;
}
if (!context.Request.Query.TryGetValue("h", out var hValues) || hValues.Count < 1)
{
BadRequest("Missing `h`");
return;
}
if (!double.TryParse(wValues.Last(), out var w))
{
w = 640;
}
if (!double.TryParse(hValues.Last(), out var h))
{
h = 480;
}
//
// OK, Run
//
var token = CancellationToken.None;
var webSocket = await context.WebSockets.AcceptWebSocketAsync("ooui");
var session = new Ooui.UI.Session(webSocket, pendingSession.Element, w, h, token);
await session.RunAsync().ConfigureAwait(false);
}
