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/* This file is part of KDE
Copyright (C) 2000 by Wolfram Diestel <[email protected]>
Copyright (C) 2005 by Tim Way <[email protected]>
Copyright (C) 2005 by Volker Krause <[email protected]>
This is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License version 2 as published by the Free Software Foundation.
*/
#ifndef _NNTP_H
#define _NNTP_H
#include <tqstring.h>
#include <tdeio/global.h>
#include <tdeio/tcpslavebase.h>
#define MAX_PACKET_LEN 4096
/* TODO:
- test special post command
- progress information in get, and maybe post
- remove unnecessary debug stuff
*/
class NNTPProtocol:public TDEIO::TCPSlaveBase
{
public:
/** Default Constructor
* @param isSSL is a true or false to indicate whether ssl is to be used
*/
NNTPProtocol ( const TQCString & pool, const TQCString & app, bool isSSL );
virtual ~NNTPProtocol();
virtual void get(const KURL& url );
virtual void put( const KURL& url, int permissions, bool overwrite, bool resume );
virtual void stat(const KURL& url );
virtual void listDir(const KURL& url );
virtual void setHost(const TQString& host, int port,
const TQString& user, const TQString& pass);
/**
* Special command: 1 = post article
* it takes no other args, the article data are
* requested by dataReq() and should be valid
* as in RFC850. It's not checked for correctness here.
* @deprecated use put() for posting
*/
virtual void special(const TQByteArray& data);
protected:
/**
* Send a command to the server. Returns the response code and
* the response line
*/
int sendCommand( const TQString &cmd );
/**
* Attempt to properly shut down the NNTP connection by sending
* "QUIT\r\n" before closing the socket.
*/
void nntp_close ();
/**
* Attempt to initiate a NNTP connection via a TCP socket, if no existing
* connection could be reused.
*/
bool nntp_open();
/**
* Post article. Invoked by special() and put()
*/
bool post_article();
private:
TQString mHost, mUser, mPass;
bool postingAllowed, opened;
char readBuffer[MAX_PACKET_LEN];
ssize_t readBufferLen;
/**
* Fetch all new groups since the given date or (if the date is empty)
* all available groups.
* @param since Date as specified in RFC 977 for the NEWGROUPS command
*/
void fetchGroups( const TQString &since );
/**
* Fetch message listing from the given newsgroup.
* This will use RFC2980 XOVER if available, plain RFC977 STAT/NEXT
* otherwise.
* @param group The newsgroup name
* @param first Serial number of the first message, 0 lists all messages.
* @return true on sucess, false otherwise.
*/
bool fetchGroup ( TQString &group, unsigned long first = 0 );
/**
* Fetch message listing from the current group using RFC977 STAT/NEXT
* commands.
* @param first message number of the first article
* @return true on sucess, false otherwise.
*/
bool fetchGroupRFC977( unsigned long first );
/**
* Fetch message listing from the current group using the RFC2980 XOVER
* command.
* Additional headers provided by XOVER are added as UDS_EXTRA entries
* to the listing.
* @param first message number of the first article
* @param notSupported boolean reference to indicate if command failed
* due to missing XOVER support on the server.
* @return true on sucess, false otherwise
*/
bool fetchGroupXOVER( unsigned long first, bool ¬Supported );
/// creates an UDSEntry with file information used in stat and listDir
void fillUDSEntry ( TDEIO::UDSEntry & entry, const TQString & name, long size,
bool postingAllowed, bool is_article );
/// error handling for unexpected responses
void unexpected_response ( int res_code, const TQString & command );
/**
* grabs the response line from the server. used after most send_cmd calls. max
* length for the returned string ( char *data ) is 4096 characters including
* the "\r\n" terminator.
*/
int evalResponse ( char *data, ssize_t &len );
};
#endif
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