add: implement authentication module with validation and identity extraction

Minecraft.World/AuthModule.cpp

@@ -0,0 +1,87 @@
+#include "stdafx.h"
+#include "AuthModule.h"
+
+bool AuthModule::validate(const wstring &uid, const wstring &username)
+{
+	return !uid.empty() && !username.empty() && username.length() <= 16;
+}
+
+bool AuthModule::extractIdentity(const vector<pair<wstring, wstring>> &fields, wstring &outUid, wstring &outUsername)
+{
+	for (const auto &[key, value] : fields)
+	{
+		if (key == L"uid") outUid = value;
+		else if (key == L"username") outUsername = value;
+	}
+	return validate(outUid, outUsername);
+}
+
+ElyByAuthModule::ElyByAuthModule(const wstring &endpoint)
+	: endpoint(endpoint)
+{
+}
+
+const wchar_t *ElyByAuthModule::schemeName() { return L"mcconsoles:elyby"; }
+
+vector<wstring> ElyByAuthModule::supportedVariations()
+{
+	return {L"java"};
+}
+
+vector<pair<wstring, wstring>> ElyByAuthModule::getSettings(const wstring &variation)
+{
+	return {{L"endpoint", endpoint}};
+}
+
+bool ElyByAuthModule::onAuthData(const vector<pair<wstring, wstring>> &fields, wstring &outUid, wstring &outUsername)
+{
+	return extractIdentity(fields, outUid, outUsername);
+}
+
+MojangAuthModule::MojangAuthModule()
+	: ElyByAuthModule(L"https://sessionserver.mojang.com")
+{
+}
+
+const wchar_t *MojangAuthModule::schemeName() { return L"mcconsoles:mojang"; }
+
+vector<wstring> MojangAuthModule::supportedVariations()
+{
+	return {L"java", L"bedrock"};
+}
+
+// --- KeypairOfflineAuthModule ---
+
+const wchar_t *KeypairOfflineAuthModule::schemeName() { return L"mcconsoles:keypair_offline"; }
+
+vector<wstring> KeypairOfflineAuthModule::supportedVariations()
+{
+	return {L"rsa2048", L"ed25519"};
+}
+
+vector<pair<wstring, wstring>> KeypairOfflineAuthModule::getSettings(const wstring &variation)
+{
+	return {{L"key_type", variation}};
+}
+
+bool KeypairOfflineAuthModule::onAuthData(const vector<pair<wstring, wstring>> &fields, wstring &outUid, wstring &outUsername)
+{
+	return extractIdentity(fields, outUid, outUsername);
+}
+
+const wchar_t *OfflineAuthModule::schemeName() { return L"mcconsoles:offline"; }
+
+vector<wstring> OfflineAuthModule::supportedVariations()
+{
+	return {};
+}
+
+vector<pair<wstring, wstring>> OfflineAuthModule::getSettings(const wstring &variation)
+{
+	return {};
+}
+
+bool OfflineAuthModule::onAuthData(const vector<pair<wstring, wstring>> &fields, wstring &outUid, wstring &outUsername)
+{
+	return extractIdentity(fields, outUid, outUsername);
+}