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/*
** CWPOP3Folder.m
**
** Copyright (c) 2001-2006 Ludovic Marcotte
** Copyright (C) 2014-2022 Riccardo Mottola
**
** Author: Ludovic Marcotte <ludovic@Sophos.ca>
** Riccardo Mottola <rm@gnu.org>
**
** 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 2.1 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 General Public License
** along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#import <Pantomime/CWPOP3Folder.h>
#import <Pantomime/CWConnection.h>
#import <Pantomime/CWConstants.h>
#import <Pantomime/CWMessage.h>
#import <Pantomime/CWPOP3CacheManager.h>
#import <Pantomime/CWPOP3CacheObject.h>
#import <Pantomime/CWPOP3Message.h>
#import <Pantomime/CWPOP3Store.h>
#import <Pantomime/CWTCPConnection.h>
#import <Pantomime/NSData+Extensions.h>
#import <Pantomime/NSString+Extensions.h>
#import <Foundation/NSAutoreleasePool.h>
#import <Foundation/NSException.h>
#import <Foundation/NSValue.h>
#include <limits.h>
#include <stdio.h>
#include <string.h>
#if !defined(UINT_MAX)
#define UINT_MAX (unsigned int)~0
#endif
//
// Private methods
//
@interface CWPOP3Folder (Private)
- (void) _deleteOldMessages;
@end
//
//
//
@implementation CWPOP3Folder
- (id) initWithName: (NSString *) theName
{
self = [super initWithName: theName];
_leave_on_server = YES;
_retain_period = 0;
return self;
}
//
//
//
- (void) prefetchMessageAtIndex: (NSUInteger) theIndex
numberOfLines: (NSUInteger) theNumberOfLines
{
[_store sendCommand: POP3_TOP arguments: @"TOP %lu %lu", (long unsigned)theIndex, (long unsigned)theNumberOfLines];
}
//
//
//
- (void) prefetch
{
[_store sendCommand: POP3_STAT arguments: @"STAT"];
}
//
// This method does nothing.
//
- (void) close
{
// We do nothing.
}
//
//
//
- (BOOL) leaveOnServer
{
return _leave_on_server;
}
//
//
//
- (void) setLeaveOnServer: (BOOL) theBOOL
{
_leave_on_server = theBOOL;
}
//
//
//
- (unsigned int) retainPeriod
{
return _retain_period;
}
//
// The retain period is set in days.
//
- (void) setRetainPeriod: (unsigned int) theRetainPeriod
{
_retain_period = theRetainPeriod;
}
//
//
//
- (PantomimeFolderMode) mode
{
return PantomimeReadWriteMode;
}
//
//
//
- (void) expunge
{
NSUInteger count;
count = [self countVisible];
// We mark it as deleted if we need to
if (!_leave_on_server)
{
NSUInteger i;
for (i = 1; i <= count; i++)
{
[_store sendCommand: POP3_DELE arguments: @"DELE %u", (unsigned)i];
}
}
else if (_retain_period > 0)
{
[self _deleteOldMessages];
}
[_store sendCommand: POP3_EXPUNGE_COMPLETED arguments: @""];
}
//
// In POP3, we do nothing.
//
- (void) search: (NSString *) theString
mask: (PantomimeSearchMask) theMask
options: (PantomimeSearchOption) theOptions
{
}
@end
//
// Private methods
//
@implementation CWPOP3Folder (Private)
- (void) _deleteOldMessages
{
NSUInteger i, count;
count = [self countVisible];
for (i = count; i > 0; i--)
{
NSDate *aDate;
aDate = [(CWPOP3CacheManager *)_cacheManager dateForUID: [[_allMessages objectAtIndex: i-1] UID]];
if (aDate)
{
NSTimeInterval interval;
interval = -[aDate timeIntervalSinceNow];
if (interval > 0)
{
NSUInteger days = lround(interval / (24*3600));
if (days >= _retain_period)
{
[_store sendCommand: POP3_DELE arguments: @"DELE %d", i];
}
}
}
}
}
@end
|
