/// <summary>
/// Adds middleware for using ExpectCT, which adds the Expect-CT header.
/// </summary>
/// <param name="app">The <see cref="IApplicationBuilder"/> instance this method extends.</param>
/// <param name="optionsAction">A delegate used for setting up the <see cref="ExpectCtOptionsBuilder"/>.</param>
public static IApplicationBuilder UseExpectCt(this IApplicationBuilder app, Action <ExpectCtOptionsBuilder> optionsAction)
{
ExpectCtOptionsBuilder builder = new ExpectCtOptionsBuilder();
optionsAction(builder);
ExpectCtOptions options = builder.Build();
return(app.UseMiddleware <ExpectCtMiddleware>(options));
}
public ExpectCtMiddleware(RequestDelegate next, ExpectCtOptions options)
{
if (options == null)
{
throw new ArgumentNullException(nameof(options));
}
this.next = next;
List <string> parts = new List <string>();
if (options.ReportUri != null)
{
parts.Add($"report-uri=\"{options.ReportUri}\"");
}
if (options.Enforce)
{
parts.Add("enforce");
}
parts.Add($"max-age={options.MaxAge}");
headerValue = string.Join(", ", parts);
}
internal ExpectCtOptionsBuilder()
{
options = new ExpectCtOptions();
}