From f4efcb90808603bbfce5a149f5490bd6fceb880f Mon Sep 17 00:00:00 2001
From: madmaxoft <github@xoft.cz>
Date: Fri, 27 Sep 2013 18:14:26 +0200
Subject: Rewritten HTTPServer to split into cHTTPConnection, cHTTPRequest and
 cHTTPResponse classes.

---
 source/HTTPServer/HTTPServer.h | 135 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 135 insertions(+)
 create mode 100644 source/HTTPServer/HTTPServer.h

(limited to 'source/HTTPServer/HTTPServer.h')

diff --git a/source/HTTPServer/HTTPServer.h b/source/HTTPServer/HTTPServer.h
new file mode 100644
index 000000000..9287a79e8
--- /dev/null
+++ b/source/HTTPServer/HTTPServer.h
@@ -0,0 +1,135 @@
+
+// HTTPServer.h
+
+// Declares the cHTTPServer class representing a HTTP webserver that uses cListenThread and cSocketThreads for processing
+
+
+
+
+
+#pragma once
+
+#include "../OSSupport/ListenThread.h"
+#include "../OSSupport/SocketThreads.h"
+#include "../../iniFile/iniFile.h"
+
+
+
+
+
+// fwd:
+class cHTTPServer;
+class cHTTPMessage;
+class cHTTPRequest;
+class cHTTPResponse;
+
+
+
+
+
+class cHTTPConnection :
+	public cSocketThreads::cCallback
+{
+public:
+	
+	enum eState
+	{
+		wcsRecvHeaders,  ///< Receiving request headers (m_CurrentRequest == NULL)
+		wcsRecvBody,     ///< Receiving request body    (m_CurrentRequest is valid)
+		wcsRecvIdle,     ///< Has received the entire body, waiting to send the response (m_CurrentRequest == NULL)
+		wcsSendingResp,  ///< Sending response body     (m_CurrentRequest == NULL)
+		wcsInvalid,      ///< The request was malformed, the connection is closing
+	} ;
+	
+	cHTTPConnection(cHTTPServer & a_HTTPServer);
+	
+	/// Sends HTTP status code together with a_Reason (used for HTTP errors)
+	void SendStatusAndReason(int a_StatusCode, const AString & a_Reason);
+	
+	/// Sends the headers contained in a_Response
+	void Send(const cHTTPResponse & a_Response);
+	
+	/// Sends the data as the response (may be called multiple times)
+	void Send(const void * a_Data, int a_Size);
+
+	/// Sends the data as the response (may be called multiple times)
+	void Send(const AString & a_Data) { Send(a_Data.data(), a_Data.size()); }
+	
+	/// Finishes sending current response, gets ready for receiving another request (HTTP 1.1 keepalive)
+	void FinishResponse(void);
+	
+protected:
+	typedef std::map<AString, AString> cNameValueMap;
+	
+	/// The parent webserver that is to be notified of events on this connection
+	cHTTPServer & m_HTTPServer;
+	
+	/// All the incoming data until the entire request header is parsed
+	AString m_IncomingHeaderData;
+	
+	/// Status in which the request currently is
+	eState m_State;
+	
+	/// Data that is queued for sending, once the socket becomes writable
+	AString m_OutgoingData;
+	
+	/// The request being currently received (valid only between having parsed the headers and finishing receiving the body)
+	cHTTPRequest * m_CurrentRequest;
+	
+	
+	/// Parses the header in m_IncomingData until the specified end mark
+	void ParseHeader(size_t a_IdxEnd);
+	
+	/// Sends the response status and headers. Transition from wrsRecvBody to wrsSendingResp.
+	void SendRespHeaders(void);
+	
+	// cSocketThreads::cCallback overrides:
+	virtual void DataReceived   (const char * a_Data, int a_Size) override;  // Data is received from the client
+	virtual void GetOutgoingData(AString & a_Data) override;  // Data can be sent to client
+	virtual void SocketClosed   (void) override;  // The socket has been closed for any reason
+} ;
+
+typedef std::vector<cHTTPConnection *> cHTTPConnections;
+
+
+
+
+class cHTTPServer :
+	public cListenThread::cCallback
+{
+public:
+	cHTTPServer(void);
+	
+	bool Initialize(cIniFile & a_IniFile);
+	
+protected:
+	friend class cHTTPConnection;
+	
+	cListenThread m_ListenThreadIPv4;
+	cListenThread m_ListenThreadIPv6;
+	
+	cSocketThreads m_SocketThreads;
+
+	cCriticalSection m_CSConnections;
+	cHTTPConnections m_Connections;    ///< All the connections that are currently being serviced
+
+	// cListenThread::cCallback overrides:
+	virtual void OnConnectionAccepted(cSocket & a_Socket) override;
+	
+	/// Called by cHTTPConnection to close the connection (presumably due to an error)
+	void CloseConnection(cHTTPConnection & a_Connection);
+	
+	/// Called by cHTTPConnection when it finishes parsing the request header
+	void NewRequest(cHTTPConnection & a_Connection, cHTTPRequest & a_Request);
+	
+	/// Called by cHTTPConenction when it receives more data for the request body
+	void RequestBody(cHTTPConnection & a_Connection, cHTTPRequest & a_Request);
+	
+	/// Called by cHTTPConnection when it detects that the request has finished (all of its body has been received)
+	void RequestFinished(cHTTPConnection & a_Connection, cHTTPRequest & a_Request);
+} ;
+
+
+
+
+
-- 
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