public RhetosProxyMiddleware(RequestDelegate next, ProxyOptions options)
{
if (next == null)
{
throw new ArgumentNullException(nameof(next));
}
if (options == null)
{
throw new ArgumentNullException("ProxyOptions");
}
_next = next;
_options = options;
if (string.IsNullOrEmpty(_options.Host))
{
throw new ArgumentException("Options parameter must specify host.", "ProxyOptions");
}
// Setting default Port and Scheme if not specified
if (string.IsNullOrEmpty(_options.Port))
{
if (string.Equals(_options.Scheme, "https", StringComparison.OrdinalIgnoreCase))
{
_options.Port = "443";
}
else
{
_options.Port = "80";
}
}
if (string.IsNullOrEmpty(_options.Scheme))
{
_options.Scheme = "http";
}
if (string.IsNullOrEmpty(_options.HostPathBase))
{
_options.HostPathBase = "";
}
_httpClient = new HttpClient(_options.BackChannelMessageHandler ?? new HttpClientHandler());
}
/// <summary>
/// Sends request to remote server as specified in options
/// </summary>
/// <param name="app"></param>
/// <param name="options">Options for setting port, host, and scheme</param>
/// <returns></returns>
public static IApplicationBuilder RunRhetosProxy(this IApplicationBuilder app, ProxyOptions options)
{
if (app == null)
{
throw new ArgumentNullException(nameof(app));
}
if (options == null)
{
throw new ArgumentNullException("ProxyOptions");
}
return(app.UseMiddleware <RhetosProxyMiddleware>(options));
}