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/*
** CWLocalFolder+maildir.m
**
** Copyright (c) 2004-2007 Ludovic Marcotte
** Copyright (C) 2017-2022 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/CWLocalFolder+maildir.h>
#import <Pantomime/CWFlags.h>
#import <Pantomime/CWLocalCacheManager.h>
#import <Pantomime/CWLocalFolder+mbox.h>
#import <Pantomime/CWLocalMessage.h>
#import <Pantomime/CWLocalStore.h>
#import <Pantomime/NSString+Extensions.h>
#import <Foundation/NSFileManager.h>
#import <Foundation/NSNotification.h>
//
// The maildir format is well documented here:
//
// http://www.qmail.org/man/man5/maildir.html
// http://cr.yp.to/proto/maildir.html
//
@implementation CWLocalFolder (maildir)
- (void) expunge_maildir
{
NSMutableArray *aMutableArray;
CWLocalMessage *aMessage;
CWFlags *theFlags;
NSUInteger count, i;
unsigned int msn;
aMutableArray = AUTORELEASE([[NSMutableArray alloc] init]);
count = [_allMessages count];
// We assume that our write operation was successful and we initialize our msn to 1
msn = 1;
for (i = 0; i < count; i++)
{
aMessage = [_allMessages objectAtIndex: i];
theFlags = [aMessage flags];
if ([theFlags contain: PantomimeDeleted])
{
[[NSFileManager defaultManager] removeFileAtPath: [NSString stringWithFormat: @"%@/cur/%@", [self path], [aMessage mailFilename]]
handler: nil];
[aMutableArray addObject: aMessage];
}
else
{
// rewrite the message to account for changes in the flags
NSString *uniquePattern, *newFileName;
NSUInteger indexOfPatternSeparator;
// We update our message's ivars (folder and size don't change)
[aMessage setMessageNumber: msn];
msn++;
// we rename the message according to the maildir spec by appending the status information the name
// name of file will be unique_pattern:info with the status flags in the info field
indexOfPatternSeparator = [[aMessage mailFilename] indexOfCharacter: ':'];
if (indexOfPatternSeparator != NSNotFound && indexOfPatternSeparator > 1)
{
uniquePattern = [[aMessage mailFilename] substringToIndex: indexOfPatternSeparator];
}
else
{
uniquePattern = [aMessage mailFilename];
}
// We build the new file name
newFileName = [NSString stringWithFormat: @"%@:%@", uniquePattern, [theFlags maildirString]];
// We rename the message file
if ([[NSFileManager defaultManager] movePath: [NSString stringWithFormat: @"%@/cur/%@", [self path], [aMessage mailFilename]]
toPath: [NSString stringWithFormat: @"%@/cur/%@", [self path], newFileName]
handler: nil])
{
[aMessage setMailFilename: newFileName];
}
}
}
// We sync our cache
if (_cacheManager) [_cacheManager expunge];
[_allMessages removeObjectsInArray: aMutableArray];
#warning also return when invoking the delegate
POST_NOTIFICATION(PantomimeFolderExpungeCompleted, self, nil);
PERFORM_SELECTOR_2([[self store] delegate], @selector(folderExpungeCompleted:), PantomimeFolderExpungeCompleted, self, @"Folder");
}
//
// This parses a local structure for messages by looking in the "cur" and "new" sub-directories.
//
- (void) parse_maildir: (NSString *) theDirectory all: (BOOL) theBOOL
{
NSString *aPath, *aNewPath, *thisMailFile;
NSFileManager *aFileManager;
NSMutableArray *allFiles;
FILE *aStream;
NSUInteger i, count;
BOOL b;
if (!theDirectory)
{
return;
}
// We check if we must later move the file after
// parsing it.
b = NO;
if ([theDirectory isEqualToString: @"new"] || [theDirectory isEqualToString: @"tmp"])
{
b = YES;
}
aFileManager = [NSFileManager defaultManager];
// Read the directory
aPath = [NSString stringWithFormat: @"%@/%@", _path, theDirectory];
allFiles = [[NSMutableArray alloc] initWithArray: [aFileManager directoryContentsAtPath: aPath]];
// We remove Apple Mac OS X .DS_Store file
[allFiles removeObject: @".DS_Store"];
// We remove GWorkspace .gwdir file
[allFiles removeObject: @".gwdir"];
count = [allFiles count];
aNewPath = nil;
if (allFiles != nil && count > 0)
{
for (i = 0; i < count; i++)
{
thisMailFile = [NSString stringWithFormat: @"%@/%@", aPath, [allFiles objectAtIndex: i]];
if (b)
{
aNewPath = [NSString stringWithFormat: @"%@/cur/%@", _path, [allFiles objectAtIndex: i]];
}
#ifdef __MINGW32__
aStream = fopen([thisMailFile UTF8String], "rb");
#else
aStream = fopen([thisMailFile UTF8String], "r");
#endif
if (!aStream)
{
continue;
}
[self parse_mbox: (b ? aNewPath : thisMailFile) stream: aStream flags: nil all: theBOOL];
fclose(aStream);
// If we read this from the "new" or "tmp" sub-directories,
// move it to the "cur" directory
if (b)
{
[aFileManager movePath: thisMailFile toPath: aNewPath handler: nil];
}
}
[_cacheManager synchronize];
}
RELEASE(allFiles);
}
@end
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