From a3355a7b69a7f56828df7814d0d0cdcf0e7e47c8 Mon Sep 17 00:00:00 2001
From: Spotlight <spotlight@joscomputing.space>
Date: Tue, 18 Aug 2020 16:07:36 -0500
Subject: [PATCH] Implement GetChallenge

---
 ias.go  | 5 +++++
 main.go | 5 +++++
 2 files changed, 10 insertions(+)

diff --git a/ias.go b/ias.go
index 850eaa6..5aa9b3d 100644
--- a/ias.go
+++ b/ias.go
@@ -42,6 +42,11 @@ func iasHandler(e Envelope, doc *xmlquery.Node) (bool, string) {
 
 	case "GetChallenge":
 		fmt.Println("The request is valid! Responding...")
+		// The official Wii Shop Channel requests a Challenge from the server, and promptly disregards it.
+		// (Sometimes, it may not request a challenge at all.) No attempt is made to validate the response.
+		// It then uses another hard-coded value in place of this returned value entirely in any situation.
+		// For this reason, we consider it irrelevant.
+		e.AddKVNode("Challenge", SharedChallenge)
 		break
 
 	case "GetRegistrationInfo":
diff --git a/main.go b/main.go
index a025992..97df355 100644
--- a/main.go
+++ b/main.go
@@ -28,6 +28,11 @@ import (
 	"strings"
 )
 
+const (
+	// Any given challenge must be 10 characters or less (challenge.length > 0xb)
+	SharedChallenge = "NintyWhyPls"
+)
+
 // checkError makes error handling not as ugly and inefficient.
 func checkError(err error) {
 	if err != nil {