Added header data.asio

1 files changed, 79 insertions, 0 deletions

diff --git a/zenhttp/asiohttpserver.cpp b/zenhttp/asiohttpserver.cpp
index 9185f8856..b561fe8f2 100644
--- a/zenhttp/asiohttpserver.cpp
+++ b/zenhttp/asiohttpserver.cpp
@@ -122,6 +122,85 @@ MessageParser::Reset()
 }
 
 ///////////////////////////////////////////////////////////////////////////////
+class HttpHeaderData
+{
+public:
+	struct Entry
+	{
+		uint32_t Offset{0};
+		uint32_t Size{0};
+	};
+
+	struct HeaderEntry
+	{
+		Entry Name{};
+		Entry Value{};
+	};
+
+	static constexpr size_t kMaxHeaderSize		  = 2048;
+	static constexpr size_t kMaxHeaderCount		  = 16;
+	static constexpr size_t kHeaderIndexSize	  = kMaxHeaderCount * sizeof(HeaderEntry);
+	static constexpr size_t kMaxHeaderContentSize = kMaxHeaderSize - kHeaderIndexSize;
+
+	HttpHeaderData() { Reset(); }
+
+	std::string_view StatusLine() const
+	{
+		const Entry* StatusEntry = reinterpret_cast<const Entry*>(m_Buffer);
+		const char*	 Buffer		 = reinterpret_cast<const char*>(m_Buffer) + StatusEntry->Offset;
+
+		return std::string_view(Buffer, size_t(StatusEntry->Size));
+	}
+
+	std::string_view Url() const
+	{
+		const Entry* UrlEntry = reinterpret_cast<const Entry*>(m_Buffer + sizeof(Entry));
+		const char*	 Buffer	  = reinterpret_cast<const char*>(m_Buffer) + UrlEntry->Offset;
+
+		return std::string_view(Buffer, size_t(UrlEntry->Size));
+	}
+
+	void Reset()
+	{
+		memset(m_Buffer, 0, kMaxHeaderSize);
+
+		m_CursorView  = MutableMemoryView(&m_Buffer[kHeaderIndexSize], kMaxHeaderContentSize);
+		m_HeaderCount = 0;
+	}
+
+	void AppendData(MemoryView Data)
+	{
+		m_CursorView.CopyFrom(Data);
+		m_CursorView += Data.GetSize();
+	}
+
+	void AppendStatus(Entry StatusEntry)
+	{
+		MutableMemoryView BufferView(&m_Buffer, sizeof(Entry));
+		BufferView.CopyFrom(MemoryView(&StatusEntry, sizeof(Entry)));
+	}
+
+	void AppendUrl(Entry StatusEntry)
+	{
+		MutableMemoryView BufferView(&m_Buffer + sizeof(Entry), sizeof(Entry));
+		BufferView.CopyFrom(MemoryView(&StatusEntry, sizeof(Entry)));
+	}
+
+	void AppendHeader(HeaderEntry Header)
+	{
+		MutableMemoryView HeaderView(&m_Buffer + ((m_HeaderCount + 1) * sizeof(HeaderEntry)), sizeof(HeaderEntry));
+		HeaderView.CopyFrom(MemoryView(&Header, sizeof(HeaderEntry)));
+
+		m_HeaderCount++;
+	}
+
+private:
+	uint8_t			  m_Buffer[kMaxHeaderSize];
+	MutableMemoryView m_CursorView;
+	size_t			  m_HeaderCount{0};
+};
+
+///////////////////////////////////////////////////////////////////////////////
 class HttpRequestMessage final : public HttpServerRequest
 {
 public: