Add httpGet function

src/utils/concurrency.hpp

@@ -0,0 +1,46 @@
+#pragma once
+
+#include <mutex>
+
+namespace utils::concurrency
+{
+	template <typename T, typename MutexType = std::mutex>
+	class container
+	{
+	public:
+		template <typename R = void, typename F>
+		R access(F&& accessor) const
+		{
+			std::lock_guard<MutexType> _{mutex_};
+			return accessor(object_);
+		}
+
+		template <typename R = void, typename F>
+		R access(F&& accessor)
+		{
+			std::lock_guard<MutexType> _{mutex_};
+			return accessor(object_);
+		}
+
+		template <typename R = void, typename F>
+		R access_with_lock(F&& accessor) const
+		{
+			std::unique_lock<MutexType> lock{mutex_};
+			return accessor(object_, lock);
+		}
+
+		template <typename R = void, typename F>
+		R access_with_lock(F&& accessor)
+		{
+			std::unique_lock<MutexType> lock{mutex_};
+			return accessor(object_, lock);
+		}
+
+		T& get_raw() { return object_; }
+		const T& get_raw() const { return object_; }
+
+	private:
+		mutable MutexType mutex_{};
+		T object_{};
+	};
+}

src/utils/http.cpp

@@ -0,0 +1,47 @@
+#include <stdinc.hpp>
+#include "http.hpp"
+
+namespace utils::http
+{
+	std::optional<std::string> get_data(const std::string& url)
+	{
+		CComPtr<IStream> stream;
+
+		if (FAILED(URLOpenBlockingStreamA(nullptr, url.data(), &stream, 0, nullptr)))
+		{
+			return {};
+		}
+
+		char buffer[0x1000];
+		std::string result;
+
+		HRESULT status{};
+
+		do
+		{
+			DWORD bytes_read = 0;
+			status = stream->Read(buffer, sizeof(buffer), &bytes_read);
+
+			if (bytes_read > 0)
+			{
+				result.append(buffer, bytes_read);
+			}
+		}
+		while (SUCCEEDED(status) && status != S_FALSE);
+
+		if (FAILED(status))
+		{
+			return {};
+		}
+
+		return {result};
+	}
+
+	std::future<std::optional<std::string>> get_data_async(const std::string& url)
+	{
+		return std::async(std::launch::async, [url]()
+		{
+			return get_data(url);
+		});
+	}
+}

src/utils/http.hpp

@@ -0,0 +1,11 @@
+#pragma once
+
+#include <string>
+#include <optional>
+#include <future>
+
+namespace utils::http
+{
+	std::optional<std::string> get_data(const std::string& url);
+	std::future<std::optional<std::string>> get_data_async(const std::string& url);
+}