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	1	/////////////////////////////////////////////////////////////////////////////
	2	// Name: wx/protocol/protocol.h
	3	// Purpose: interface of wxProtocol
	4	// Author: wxWidgets team
	5	// RCS-ID: $Id$
	6	// Licence: wxWindows licence
	7	/////////////////////////////////////////////////////////////////////////////
	8
	9	/**
	10	Error values returned by wxProtocol.
	11	*/
	12	enum wxProtocolError
	13	{
	14	wxPROTO_NOERR = 0, //!< No error.
	15	wxPROTO_NETERR, //!< A generic network error occurred.
	16	wxPROTO_PROTERR, //!< An error occurred during negotiation.
	17	wxPROTO_CONNERR, //!< The client failed to connect the server.
	18	wxPROTO_INVVAL, //!< Invalid value.
	19	wxPROTO_NOHNDLR, //!< Not currently used.
	20	wxPROTO_NOFILE, //!< The remote file doesn't exist.
	21	wxPROTO_ABRT, //!< Last action aborted.
	22	wxPROTO_RCNCT, //!< An error occurred during reconnection.
	23	wxPROTO_STREAMING //!< Someone tried to send a command during a transfer.
	24	};
	25
	26	/**
	27	@class wxProtocol
	28
	29	Represents a protocol for use with wxURL.
	30
	31	Note that you may want to change the default time-out for HTTP/FTP connections
	32	and network operations (using SetDefaultTimeout()) since the default time-out
	33	value is quite long (60 seconds).
	34
	35	@library{wxnet}
	36	@category{net}
	37
	38	@see wxSocketBase, wxURL
	39	*/
	40	class wxProtocol : public wxSocketClient
	41	{
	42	public:
	43	/**
	44	Abort the current stream.
	45
	46	@warning
	47	It is advised to destroy the input stream instead of aborting the stream
	48	this way.
	49
	50	@return Returns @true, if successful, else @false.
	51	*/
	52	virtual bool Abort() = 0;
	53
	54	/**
	55	Returns the type of the content of the last opened stream. It is a mime-type.
	56	May be an empty string if the content-type is unknown.
	57	*/
	58	virtual wxString GetContentType() const;
	59
	60	/**
	61	Returns the last occurred error.
	62
	63	@see wxProtocolError
	64	*/
	65	virtual wxProtocolError GetError() const;
	66
	67	/**
	68	Creates a new input stream on the specified path.
	69
	70	You can use all but seek() functionality of wxStream.
	71	Seek() isn't available on all streams. For example, HTTP or FTP streams
	72	don't deal with it. Other functions like StreamSize() and Tell() aren't
	73	available for the moment for this sort of stream.
	74	You will be notified when the EOF is reached by an error.
	75
	76	@return Returns the initialized stream. You will have to delete it
	77	yourself once you don't use it anymore. The destructor
	78	closes the network connection.
	79
	80	@see wxInputStream
	81	*/
	82	virtual wxInputStream* GetInputStream(const wxString& path) = 0;
	83
	84	/**
	85	Tries to reestablish a previous opened connection (close and renegotiate
	86	connection).
	87
	88	@return @true, if the connection is established, else @false.
	89	*/
	90	bool Reconnect();
	91
	92	/**
	93	Sets the authentication password.
	94	*/
	95	virtual void SetPassword(const wxString& user);
	96
	97	/**
	98	Sets the authentication user.
	99	*/
	100	virtual void SetUser(const wxString& user);
	101
	102	/**
	103	Sets a new default timeout for the network operations.
	104
	105	The default timeout is 60 seconds.
	106
	107	@see wxSocketBase::SetTimeout
	108	*/
	109	void SetDefaultTimeout(wxUint32 Value);
	110
	111	/**
	112	@name Logging support.
	113
	114	Each wxProtocol object may have the associated logger (by default there
	115	is none) which is used to log network requests and responses.
	116
	117	@see wxProtocolLog
	118	*/
	119	//@{
	120
	121	/**
	122	Set the logger, deleting the old one and taking ownership of this one.
	123
	124	@param log
	125	New logger allocated on the heap or @NULL.
	126	*/
	127	void SetLog(wxProtocolLog *log);
	128
	129	/**
	130	Return the current logger, may be @NULL.
	131	*/
	132	wxProtocolLog *GetLog() const { return m_log; }
	133
	134	/**
	135	Detach the existing logger without deleting it.
	136
	137	The caller is responsible for deleting the returned pointer if it's
	138	non-@c NULL.
	139	*/
	140	wxProtocolLog *DetachLog();
	141
	142	/**
	143	Call wxProtocolLog::LogRequest() if we have a valid logger or do
	144	nothing otherwise.
	145	*/
	146	void LogRequest(const wxString& str);
	147
	148	/**
	149	Call wxProtocolLog::LogResponse() if we have a valid logger or do
	150	nothing otherwise.
	151	*/
	152	void LogResponse(const wxString& str);
	153
	154	//@}
	155	};
	156