internal static void AddXForwardedHeaders(
this WebSocketClientOptions options,
IPAddress @for,
HostString host,
string proto,
PathString pathBase)
{
if (@for != null)
{
var forString = @for.AddressFamily == AddressFamily.InterNetworkV6
? $"\"[{@for}]\""
: @for.ToString();
options.SetRequestHeader(XForwardedFor, forString);
}
if (host.HasValue)
{
options.SetRequestHeader(XForwardedHost, host.Value);
}
if (!string.IsNullOrWhiteSpace(proto))
{
options.SetRequestHeader(XForwardedProto, proto);
}
if (!string.IsNullOrWhiteSpace(pathBase))
{
options.SetRequestHeader(XForwardedPathBase, pathBase);
}
}
/// <summary>
/// Adds X-Forwarded-* headers to the upstream websocket request
/// with an additional PathBase parameter.
/// </summary>
public static void AddXForwardedHeaders(this WebSocketClientOptions options)
{
var protocol = options.HttpContext.Request.Scheme;
var @for = options.HttpContext.Connection.RemoteIpAddress;
var host = options.HttpContext.Request.Headers[HeaderNames.Host];
var hostString = HostString.FromUriComponent(host);
var pathBase = options.HttpContext.Request.PathBase.Value;
options.AddXForwardedHeaders(@for, hostString, protocol, pathBase);
}