/// <summary>
/// Invoke the middleware
/// </summary>
/// <param name="context">The current context</param>
/// <returns>A <see cref="Task"/> representing the asynchronous operation.</returns>
public async Task Invoke(HttpContext context)
{
if (context == null)
{
throw new ArgumentNullException(nameof(context));
}
if (_mustGenerateNonce)
{
context.SetNonce(_nonceGenerator.GetNonce(Constants.DefaultBytesInNonce));
}
context.Response.OnStarting(OnResponseStarting, Tuple.Create(this, context, _policy));
await _next(context);
}
/// <summary>
/// Invoke the middleware.
/// </summary>
/// <param name="context">The current HttpContext</param>
public Task Invoke(HttpContext context)
{
context.EnsureNotNull(nameof(context));
var nonce = _nonceGenerator.GetNonce();
context.SetNonce(nonce);
var builder = new CspOptionsBuilder(nonce);
_configure(builder);
var options = builder.Build();
var header = new CspHeader(options);
context.Response.Headers.Add(header.Key, header.Value);
return(_next(context));
}