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chore: validation improvements and fixes

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This commit is contained in:
Eugene Fox
2025-09-03 09:08:34 +00:00
parent 99515802c5
commit 5488014c6a
1 changed files with 9 additions and 2 deletions
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Program.cs
+9 -2
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@@ -40,11 +40,18 @@ app.MapHub<WsHub>("/ws", options =>
app.MapPost("/send", app.MapPost("/send",
static async ( static async (
[FromServices] IHubContext<WsHub> hubContext, [FromServices] ILogger<Program> logger, [FromServices] IHubContext<WsHub> hubContext, [FromServices] ILogger<Program> logger,
[FromQuery] string id, [FromBody] string data [FromQuery] string? id, [FromBody] string? data
) => ) =>
{ {
if (string.IsNullOrWhiteSpace(id) || id.Length > 64)
return Results.BadRequest("Connection ID is required and must be at most 64 characters long.");
foreach (char c in id)
if (!char.IsLetterOrDigit(c) && c != '-' && c != '_')
return Results.BadRequest("Connection ID contains invalid characters.");
if (string.IsNullOrWhiteSpace(data) || data.Length > 66_560) if (string.IsNullOrWhiteSpace(data) || data.Length > 66_560)
return Results.BadRequest(); return Results.BadRequest("Body is required and must be at most 66,560 characters long.");
logger.LogDebug("Received payload for connection '{id}' (package length: {len})", id, data.Length); logger.LogDebug("Received payload for connection '{id}' (package length: {len})", id, data.Length);
await hubContext.Clients.Client(id).SendAsync("ReceiveData", data); await hubContext.Clients.Client(id).SendAsync("ReceiveData", data);