patch: refactor auth handling. seperate each auth method into their own module.

Minecraft.World/SessionAuthModule.cpp

@@ -0,0 +1,78 @@
+#include "stdafx.h"
+#include "SessionAuthModule.h"
+#include "HttpClient.h"
+#include "StringHelpers.h"
+#include "Common/vendor/nlohmann/json.hpp"
+#include <random>
+
+static wstring generateServerId()
+{
+	static constexpr wchar_t hex[] = L"0123456789abcdef";
+	static std::mt19937 rng(std::random_device{}());
+	wstring id(16, L'0');
+	for (auto &c : id) c = hex[rng() & 0xF];
+	return id;
+}
+
+SessionAuthModule::SessionAuthModule()
+{
+	endpoints[L"mojang"] = {L"https://authserver.mojang.com", L"https://sessionserver.mojang.com"};
+	endpoints[L"elyby"] = {L"https://authserver.ely.by", L"https://authserver.ely.by"};
+}
+
+const wchar_t *SessionAuthModule::schemeName() { return L"mcconsoles:session"; }
+
+vector<wstring> SessionAuthModule::supportedVariations()
+{
+	return {L"mojang", L"elyby"};
+}
+
+vector<pair<wstring, wstring>> SessionAuthModule::getSettings(const wstring &variation)
+{
+	auto it = endpoints.find(variation);
+	if (it == endpoints.end()) return {};
+
+	activeSessionEndpoint = it->second.sessionEndpoint;
+	activeServerId = generateServerId();
+
+	return {
+		{L"authEndpoint", it->second.authEndpoint},
+		{L"sessionEndpoint", it->second.sessionEndpoint},
+		{L"serverId", activeServerId}
+	};
+}
+
+bool SessionAuthModule::onAuthData(const vector<pair<wstring, wstring>> &fields, wstring &outUid, wstring &outUsername)
+{
+	wstring username;
+	for (const auto &[k, v] : fields)
+	{
+		if (k == L"username") username = v;
+	}
+
+	if (username.empty() || activeServerId.empty() || activeSessionEndpoint.empty())
+		return false;
+
+	string url = narrowStr(activeSessionEndpoint)
+		+ "/session/minecraft/hasJoined?username=" + narrowStr(username)
+		+ "&serverId=" + narrowStr(activeServerId);
+
+	auto response = HttpClient::get(url);
+	if (response.statusCode != 200)
+		return false;
+
+	auto json = nlohmann::json::parse(response.body, nullptr, false);
+	if (json.is_discarded())
+		return false;
+
+	string id = json.value("id", "");
+	string name = json.value("name", "");
+
+	if (id.empty() || name.empty())
+		return false;
+
+	outUid = convStringToWstring(id);
+	outUsername = convStringToWstring(name);
+
+	return validate(outUid, outUsername);
+}