#ifndef HTTP_HANDLER__H
#define HTTP_HANDLER__H

#ifdef _WIN32
#pragma once
#endif


#define ON_HTTP_REQUEST(RURI, FN)	if (HHttpHandler::UriCmp(m_pHttpParser->GetRequestUri(), RURI)) { return FN(pBodyData, nBodySize); }


class HHttpHandler : public HProtocolHandler
{
public:
	static bool UriCmp(const char * pszRequestUri, const char * pszPrefix);
	static bool GetParamValue(const char * pszString, const char * pszKey, char * pszValue);

	static bool GetCookieValue(const char * pszCookie, const char * pszKeyName, char * pszValue);
	static bool SetCookieValue(char * pszNewCookie, const char * pszCookie, const char * pszKeyName, const char * pszValue);
	static int RemoveCookieValue(char * pszCookie, const char * pszKeyName, int nIndex = 0);	// return 0 : not found key, 1 : delete, 2 : delete and empty cookie string
	static int MakeCookie(char * pszSetCookie, const char * pszKeyName, const char * pszKeyValue, const char * pszDomain, const char * pszPath, long nExpireMinute = 0);	// nExpireMinute = -1 : delete, 0 : not set expire, (86400 * 10) : 10 days
	static const char * EnumExtractCookie(const char * pszCookie, char ** ppName, char ** ppValue);

	static int MakeResponse(char * pszResponse, const char * pszResponseType, const char * pszHtml);
	static int Make200Header(char * pszResponse, const char * pszContentType, unsigned long nBodySize, const char * pszAddtionalHeaders = NULL);
	static int Make302Response(char * pszResponse, const char * pszLocation, const char * pszSetCookie = NULL);
	static int Make307Response(char * pszResponse, const char * pszLocation, const char * pszSetCookie = NULL);

	static void MakeRedirectBody(HString * pstrBody, const char * pszUrl);
	//

	HHttpHandler();
	~HHttpHandler();

protected:
	void InitParser();

	void WriteStreamPacket(const char * pszDir, const char * pszPrefix);

	virtual void OnReceivedStatusFromTransport(int nStatus) {}

	bool OnPrepareReceive() { return true; }
	virtual int OnReceivedFromTransport(const char * pData, int nSize);

	virtual int OnPacketProcessing(const char * pBodyData, int nBodySize) { return -1; }
	virtual int OnReceivedBodyStream(const char * pData, int nSize) { return -1; }

protected:
	HHsParser * m_pHttpParser;
	int m_nProtocolStatus;

	long m_nRemainBodySize;

private:
	HStreamBuffer * m_pRecvStreamBuffer;
};

#endif	// HTTP_HANDLER__H