--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/goodjava/webserver/handlers/BasicAuthHandler.java	Sat May 01 19:52:56 2021 -0600
@@ -0,0 +1,39 @@
+package goodjava.webserver.handlers;
+
+import goodjava.util.GoodUtils;
+import goodjava.webserver.Handler;
+import goodjava.webserver.Request;
+import goodjava.webserver.Response;
+import goodjava.webserver.Status;
+
+
+public class BasicAuthHandler implements Handler {
+	private final Handler handler;
+	private final String realm;
+	private final String match;
+
+	public BasicAuthHandler(Handler handler,String realm,String username,String password) {
+		this.handler = handler;
+		this.realm = realm;
+		this.match = GoodUtils.base64Encode(username+":"+password);
+	}
+
+	private Response unauthorized() {
+		Response response = new Response();
+		response.status = Status.UNAUTHORIZED;
+		response.headers.put("WWW-Authenticate","Basic realm=\""+realm+"\"");
+		return response;
+	}
+
+	public Response handle(Request request) {
+		String auth = (String)request.headers.get("Authorization");
+		if( auth==null )
+			return unauthorized();
+		String[] a = auth.split(" ");
+		if( a.length!=2 || !a[0].equals("Basic") || !a[1].equals(match) )
+			return unauthorized();
+		Response response = handler.handle(request);
+		response.headers.put("X-Accel-Expires","0");
+		return response;
+	}
+}