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Commit	Line	Data
	1	// -- mode: cpp; mode: fold --
	2	// Description /{{{/// $Id: http.h,v 1.12 2002/04/18 05:09:38 jgg Exp $
	3	// $Id: http.h,v 1.12 2002/04/18 05:09:38 jgg Exp $
	4	/* ######################################################################
	5
	6	HTTP Acquire Method - This is the HTTP acquire method for APT.
	7
	8	##################################################################### */
	9	/}}}/
	10
	11	#ifndef APT_HTTP_H
	12	#define APT_HTTP_H
	13
	14	#include <apt-pkg/strutl.h>
	15
	16	#include <string>
	17
	18	#include "server.h"
	19
	20	using std::cout;
	21	using std::endl;
	22
	23	class HttpMethod;
	24	class Hashes;
	25
	26	class CircleBuf
	27	{
	28	unsigned char *Buf;
	29	unsigned long long Size;
	30	unsigned long long InP;
	31	unsigned long long OutP;
	32	std::string OutQueue;
	33	unsigned long long StrPos;
	34	unsigned long long MaxGet;
	35	struct timeval Start;
	36
	37	static unsigned long long BwReadLimit;
	38	static unsigned long long BwTickReadData;
	39	static struct timeval BwReadTick;
	40	static const unsigned int BW_HZ;
	41
	42	unsigned long long LeftRead() const
	43	{
	44	unsigned long long Sz = Size - (InP - OutP);
	45	if (Sz > Size - (InP%Size))
	46	Sz = Size - (InP%Size);
	47	return Sz;
	48	}
	49	unsigned long long LeftWrite() const
	50	{
	51	unsigned long long Sz = InP - OutP;
	52	if (InP > MaxGet)
	53	Sz = MaxGet - OutP;
	54	if (Sz > Size - (OutP%Size))
	55	Sz = Size - (OutP%Size);
	56	return Sz;
	57	}
	58	void FillOut();
	59
	60	public:
	61	Hashes *Hash;
	62
	63	// Read data in
	64	bool Read(int Fd);
	65	bool Read(std::string Data);
	66
	67	// Write data out
	68	bool Write(int Fd);
	69	bool WriteTillEl(std::string &Data,bool Single = false);
	70
	71	// Control the write limit
	72	void Limit(long long Max) {if (Max == -1) MaxGet = 0-1; else MaxGet = OutP + Max;}
	73	bool IsLimit() const {return MaxGet == OutP;};
	74	void Print() const {cout << MaxGet << ',' << OutP << endl;};
	75
	76	// Test for free space in the buffer
	77	bool ReadSpace() const {return Size - (InP - OutP) > 0;};
	78	bool WriteSpace() const {return InP - OutP > 0;};
	79
	80	// Dump everything
	81	void Reset();
	82	void Stats();
	83
	84	CircleBuf(unsigned long long Size);
	85	~CircleBuf();
	86	};
	87
	88	struct HttpServerState: public ServerState
	89	{
	90	// This is the connection itself. Output is data FROM the server
	91	CircleBuf In;
	92	CircleBuf Out;
	93	int ServerFd;
	94
	95	protected:
	96	virtual bool ReadHeaderLines(std::string &Data);
	97	virtual bool LoadNextResponse(bool const ToFile, FileFd * const File);
	98	virtual bool WriteResponse(std::string const &Data);
	99
	100	public:
	101	virtual void Reset() { ServerState::Reset(); ServerFd = -1; };
	102
	103	virtual bool RunData(FileFd * const File);
	104
	105	virtual bool Open();
	106	virtual bool IsOpen();
	107	virtual bool Close();
	108	virtual bool InitHashes(FileFd &File);
	109	virtual Hashes * GetHashes();
	110	virtual bool Die(FileFd &File);
	111	virtual bool Flush(FileFd * const File);
	112	virtual bool Go(bool ToFile, FileFd * const File);
	113
	114	HttpServerState(URI Srv, HttpMethod *Owner);
	115	virtual ~HttpServerState() {Close();};
	116	};
	117
	118	class HttpMethod : public ServerMethod
	119	{
	120	public:
	121	virtual void SendReq(FetchItem *Itm);
	122
	123	/** \brief Try to AutoDetect the proxy */
	124	bool AutoDetectProxy();
	125
	126	virtual bool Configuration(std::string Message);
	127
	128	virtual ServerState * CreateServerState(URI uri);
	129	virtual void RotateDNS();
	130
	131	protected:
	132	std::string AutoDetectProxyCmd;
	133
	134	public:
	135	friend struct HttpServerState;
	136
	137	HttpMethod() : ServerMethod("1.2",Pipeline \| SendConfig)
	138	{
	139	File = 0;
	140	Server = 0;
	141	};
	142	};
	143
	144	#endif