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/*
* This is a simple kioslave to handle mbox-files.
* Copyright (C) 2004 Mart Kelder (mart.kde@hccnet.nl)
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef READMBOX_H
#define READMBOX_H
#include "mboxfile.h"
class UrlInfo;
class MBox;
class QFile;
class QString;
class QTextStream;
struct utimbuf;
/**
* This class handels reading from a mbox-file.
*/
class ReadMBox : public MBoxFile
{
public:
/**
* Constructor
*
* @param info The information of the file to read
* @param parent The instance of the parent MBoxProtocol.
* @param onlynew Only read new messages from the MBox file.
* @param savetime If true, the atime of the mbox-file is preserved (note that this touch the ctime).
*/
ReadMBox( const UrlInfo* info, MBoxProtocol* parent, bool onlynew = false, bool savetime = false );
/**
* Destructor
*/
~ReadMBox();
/**
* This functions return the current line
* @return The line last read, or QString::null if there wasn't such last line
*/
QString currentLine() const;
/**
* This function returns the current id. The id is the first line of an email,
* and is used in filenaming. The id normally starts with "From ".
* @return The current ID, or QString::null if no id was found yet.
*/
QString currentID() const;
/**
* This function reads the next line. The next line can be read by the currentLine()
* function call.
*
* @return true if succesfull, otherwise false.
*/
bool nextLine();
/**
* This function search the file for a certain id.
* If not found, the position is EOF.
* @param id The id of the message to be found.
* @return true if the message was found, false otherwise.
*/
bool searchMessage( const QString& id );
/**
* Skips all lines which belongs to the current message. The cursor is on the first line
* of a new message message at the end of this function, or at EOF if the cursor was already
* on the last message.
* @return The number of bytes read while skipping the message.
*/
unsigned int skipMessage();
/**
* Sets the cursor back to the beginning of the file
*/
void rewind();
/**
* Returns true if the cursor is at EOF.
* @return true if and only if the cursor is at EOF.
*/
bool atEnd() const;
/**
* Return true if the message is a new message, or all messages are listed
* @return true if it must be listed
*/
bool inListing() const;
private:
/**
* Opens a file
* @return true Returns true if opening was succesful.
*/
bool open( bool savetime );
/**
* Closes a file.
*/
void close();
private:
QFile* m_file;
QTextStream* m_stream;
QString* m_current_line;
QString* m_current_id;
bool m_atend;
struct utimbuf* m_prev_time;
bool m_only_new, m_savetime;
bool m_status, m_prev_status, m_header;
};
#endif
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