source: trunk/macosx/Torrent.m @ 10067

Last change on this file since 10067 was 10067, checked in by livings124, 12 years ago

add a temporary assert

  • Property svn:keywords set to Date Rev Author Id
File size: 55.0 KB
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1/******************************************************************************
2 * $Id: Torrent.m 10067 2010-02-01 13:01:33Z livings124 $
3 *
4 * Copyright (c) 2006-2010 Transmission authors and contributors
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
21 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
22 * DEALINGS IN THE SOFTWARE.
23 *****************************************************************************/
24
25#import "Torrent.h"
26#import "GroupsController.h"
27#import "FileListNode.h"
28#import "NSStringAdditions.h"
29#import "TrackerNode.h"
30#import "utils.h" //tr_httpIsValidURL
31
32@interface Torrent (Private)
33
34- (id) initWithPath: (NSString *) path hash: (NSString *) hashString torrentStruct: (tr_torrent *) torrentStruct
35        magnetAddress: (NSString *) magnetAddress lib: (tr_session *) lib
36        waitToStart: (NSNumber *) waitToStart
37        groupValue: (NSNumber *) groupValue
38        downloadFolder: (NSString *) downloadFolder legacyIncompleteFolder: (NSString *) incompleteFolder;
39
40- (void) createFileList;
41- (void) insertPath: (NSMutableArray *) components forParent: (FileListNode *) parent fileSize: (uint64_t) size
42    index: (NSInteger) index flatList: (NSMutableArray *) flatFileList;
43
44- (void) completenessChange: (NSNumber *) status;
45- (void) ratioLimitHit;
46- (void) metadataRetrieved;
47
48- (NSString *) etaString;
49
50- (void) setTimeMachineExclude: (BOOL) exclude forPath: (NSString *) path;
51
52@end
53
54void completenessChangeCallback(tr_torrent * torrent, tr_completeness status, void * torrentData)
55{
56    [(Torrent *)torrentData performSelectorOnMainThread: @selector(completenessChange:)
57        withObject: [[NSNumber alloc] initWithInt: status] waitUntilDone: NO];
58}
59
60void ratioLimitHitCallback(tr_torrent * torrent, void * torrentData)
61{
62    [(Torrent *)torrentData performSelectorOnMainThread: @selector(ratioLimitHit) withObject: nil waitUntilDone: NO];
63}
64
65void metadataCallback(tr_torrent * torrent, void * torrentData)
66{
67    [(Torrent *)torrentData performSelectorOnMainThread: @selector(metadataRetrieved) withObject: nil waitUntilDone: NO];
68}
69
70int trashDataFile(const char * filename)
71{
72    if (filename != NULL)
73        [Torrent trashFile: [NSString stringWithUTF8String: filename]];
74    return 0;
75}
76
77@implementation Torrent
78
79- (id) initWithPath: (NSString *) path location: (NSString *) location deleteTorrentFile: (BOOL) torrentDelete
80        lib: (tr_session *) lib
81{
82    self = [self initWithPath: path hash: nil torrentStruct: NULL magnetAddress: nil lib: lib
83            waitToStart: nil groupValue: nil
84            downloadFolder: location legacyIncompleteFolder: nil];
85   
86    if (self)
87    {
88        if (torrentDelete && ![[self torrentLocation] isEqualToString: path])
89            [Torrent trashFile: path];
90    }
91    return self;
92}
93
94- (id) initWithTorrentStruct: (tr_torrent *) torrentStruct location: (NSString *) location lib: (tr_session *) lib
95{
96    self = [self initWithPath: nil hash: nil torrentStruct: torrentStruct magnetAddress: nil lib: lib
97            waitToStart: nil groupValue: nil
98            downloadFolder: location legacyIncompleteFolder: nil];
99   
100    return self;
101}
102
103#warning need location (and use it)?
104- (id) initWithMagnetAddress: (NSString *) address location: (NSString *) location lib: (tr_session *) lib
105{
106    self = [self initWithPath: nil hash: nil torrentStruct: nil magnetAddress: address
107            lib: lib waitToStart: nil groupValue: nil
108            downloadFolder: location legacyIncompleteFolder: nil];
109   
110    return self;
111}
112
113- (id) initWithHistory: (NSDictionary *) history lib: (tr_session *) lib forcePause: (BOOL) pause
114{
115    self = [self initWithPath: [history objectForKey: @"InternalTorrentPath"]
116                hash: [history objectForKey: @"TorrentHash"]
117                torrentStruct: NULL
118                magnetAddress: nil
119                lib: lib
120                waitToStart: [history objectForKey: @"WaitToStart"]
121                groupValue: [history objectForKey: @"GroupValue"]
122                downloadFolder: [history objectForKey: @"DownloadFolder"] //upgrading from versions < 1.80
123                legacyIncompleteFolder: [[history objectForKey: @"UseIncompleteFolder"] boolValue] //upgrading from versions < 1.80
124                                        ? [history objectForKey: @"IncompleteFolder"] : nil];
125   
126    if (self)
127    {
128        //start transfer
129        NSNumber * active;
130        if (!pause && (active = [history objectForKey: @"Active"]) && [active boolValue])
131        {
132            fStat = tr_torrentStat(fHandle);
133            [self startTransfer];
134        }
135       
136        //upgrading from versions < 1.30: get old added, activity, and done dates
137        NSDate * date;
138        if ((date = [history objectForKey: @"Date"]))
139            tr_torrentSetAddedDate(fHandle, [date timeIntervalSince1970]);
140        if ((date = [history objectForKey: @"DateActivity"]))
141            tr_torrentSetActivityDate(fHandle, [date timeIntervalSince1970]);
142        if ((date = [history objectForKey: @"DateCompleted"]))
143            tr_torrentSetDoneDate(fHandle, [date timeIntervalSince1970]);
144       
145        //upgrading from versions < 1.60: get old stop ratio settings
146        NSNumber * ratioSetting;
147        if ((ratioSetting = [history objectForKey: @"RatioSetting"]))
148        {
149            switch ([ratioSetting intValue])
150            {
151                case NSOnState: [self setRatioSetting: TR_RATIOLIMIT_SINGLE]; break;
152                case NSOffState: [self setRatioSetting: TR_RATIOLIMIT_UNLIMITED]; break;
153                case NSMixedState: [self setRatioSetting: TR_RATIOLIMIT_GLOBAL]; break;
154            }
155        }
156        NSNumber * ratioLimit;
157        if ((ratioLimit = [history objectForKey: @"RatioLimit"]))
158            [self setRatioLimit: [ratioLimit floatValue]];
159    }
160    return self;
161}
162
163- (NSDictionary *) history
164{
165    return [NSDictionary dictionaryWithObjectsAndKeys:
166                [self torrentLocation], @"InternalTorrentPath",
167                [self hashString], @"TorrentHash",
168                [NSNumber numberWithBool: [self isActive]], @"Active",
169                [NSNumber numberWithBool: fWaitToStart], @"WaitToStart",
170                [NSNumber numberWithInt: fGroupValue], @"GroupValue", nil];
171}
172
173- (void) dealloc
174{
175    [[NSNotificationCenter defaultCenter] removeObserver: self];
176   
177    if (fFileStat)
178        tr_torrentFilesFree(fFileStat, [self fileCount]);
179   
180    [fPreviousFinishedIndexes release];
181    [fPreviousFinishedIndexesDate release];
182   
183    [fHashString release];
184   
185    [fIcon release];
186   
187    [fFileList release];
188    [fFlatFileList release];
189   
190    [fTimeMachineExclude release];
191   
192    [super dealloc];
193}
194
195- (NSString *) description
196{
197    return [@"Torrent: " stringByAppendingString: [self name]];
198}
199
200- (void) closeRemoveTorrent
201{
202    //allow the file to be index by Time Machine
203    if (fTimeMachineExclude)
204    {
205        [self setTimeMachineExclude: NO forPath: fTimeMachineExclude];
206        [fTimeMachineExclude release];
207        fTimeMachineExclude = nil;
208    }
209   
210    tr_torrentRemove(fHandle);
211}
212
213- (void) changeDownloadFolderBeforeUsing: (NSString *) folder
214{
215     tr_torrentSetDownloadDir(fHandle, [folder UTF8String]);
216     [self updateTimeMachineExclude];
217}
218
219- (NSString *) currentDirectory
220{
221    return [NSString stringWithUTF8String: tr_torrentGetCurrentDir(fHandle)];
222}
223
224- (void) getAvailability: (int8_t *) tab size: (NSInteger) size
225{
226    tr_torrentAvailability(fHandle, tab, size);
227}
228
229- (void) getAmountFinished: (float *) tab size: (NSInteger) size
230{
231    tr_torrentAmountFinished(fHandle, tab, size);
232}
233
234- (NSIndexSet *) previousFinishedPieces
235{
236    //if the torrent hasn't been seen in a bit, and therefore hasn't been refreshed, return nil
237    if (fPreviousFinishedIndexesDate && [fPreviousFinishedIndexesDate timeIntervalSinceNow] > -2.0)
238        return fPreviousFinishedIndexes;
239    else
240        return nil;
241}
242
243-(void) setPreviousFinishedPieces: (NSIndexSet *) indexes
244{
245    [fPreviousFinishedIndexes release];
246    fPreviousFinishedIndexes = [indexes retain];
247   
248    [fPreviousFinishedIndexesDate release];
249    fPreviousFinishedIndexesDate = indexes != nil ? [[NSDate alloc] init] : nil;
250}
251
252- (void) update
253{
254    //get previous status values before update
255    BOOL wasChecking = NO, wasError = NO, wasStalled = NO;
256    if (fStat != NULL)
257    {
258        wasChecking = [self isChecking];
259        wasError = [self isError];
260        wasStalled = fStalled;
261    }
262   
263    fStat = tr_torrentStat(fHandle);
264   
265    //check if stalled (stored because based on time and needs to check if it was previously stalled)
266    fStalled = [self isActive] && [fDefaults boolForKey: @"CheckStalled"]
267                && [self stalledMinutes] > [fDefaults integerForKey: @"StalledMinutes"];
268   
269    //update queue for checking (from downloading to seeding), stalled, or error
270    if ((wasChecking && ![self isChecking]) || (wasStalled != fStalled) || (!wasError && [self isError] && [self isActive]))
271        [[NSNotificationCenter defaultCenter] postNotificationName: @"UpdateQueue" object: self];
272   
273    //when the data first appears, update time machine exclusion
274    if (!fTimeMachineExclude)
275        [self updateTimeMachineExclude];
276}
277
278- (void) startTransfer
279{
280    fWaitToStart = NO;
281    fFinishedSeeding = NO;
282   
283    if (![self isActive] && [self alertForRemainingDiskSpace])
284    {
285        tr_torrentStart(fHandle);
286        [self update];
287    }
288}
289
290- (void) stopTransfer
291{
292    fWaitToStart = NO;
293   
294    if ([self isActive])
295    {
296        tr_torrentStop(fHandle);
297        [self update];
298       
299        [[NSNotificationCenter defaultCenter] postNotificationName: @"UpdateQueue" object: self];
300    }
301}
302
303- (void) sleep
304{
305    if ((fResumeOnWake = [self isActive]))
306        tr_torrentStop(fHandle);
307}
308
309- (void) wakeUp
310{
311    if (fResumeOnWake)
312        tr_torrentStart(fHandle);
313}
314
315- (void) manualAnnounce
316{
317    tr_torrentManualUpdate(fHandle);
318}
319
320- (BOOL) canManualAnnounce
321{
322    return tr_torrentCanManualUpdate(fHandle);
323}
324
325- (void) resetCache
326{
327    tr_torrentVerify(fHandle);
328    [self update];
329}
330
331- (BOOL) isMagnet
332{
333    return !tr_torrentHasMetadata(fHandle);
334}
335
336- (NSString *) magnetLink
337{
338    return [NSString stringWithUTF8String: tr_torrentGetMagnetLink(fHandle)];
339}
340
341- (CGFloat) ratio
342{
343    return fStat->ratio;
344}
345
346- (tr_ratiolimit) ratioSetting
347{
348    return tr_torrentGetRatioMode(fHandle);
349}
350
351- (void) setRatioSetting: (tr_ratiolimit) setting
352{
353    tr_torrentSetRatioMode(fHandle, setting);
354}
355
356- (CGFloat) ratioLimit
357{
358    return tr_torrentGetRatioLimit(fHandle);
359}
360
361- (void) setRatioLimit: (CGFloat) limit
362{
363    NSAssert(limit >= 0, @"Ratio cannot be negative");
364    tr_torrentSetRatioLimit(fHandle, limit);
365}
366
367- (BOOL) seedRatioSet
368{
369    return tr_torrentGetSeedRatio(fHandle, NULL);
370}
371
372- (CGFloat) progressStopRatio
373{
374    return fStat->percentRatio;
375}
376
377- (BOOL) usesSpeedLimit: (BOOL) upload
378{
379    return tr_torrentUsesSpeedLimit(fHandle, upload ? TR_UP : TR_DOWN);
380}
381
382- (void) setUseSpeedLimit: (BOOL) use upload: (BOOL) upload
383{
384    tr_torrentUseSpeedLimit(fHandle, upload ? TR_UP : TR_DOWN, use);
385}
386
387- (NSInteger) speedLimit: (BOOL) upload
388{
389    return tr_torrentGetSpeedLimit(fHandle, upload ? TR_UP : TR_DOWN);
390}
391
392- (void) setSpeedLimit: (NSInteger) limit upload: (BOOL) upload
393{
394    tr_torrentSetSpeedLimit(fHandle, upload ? TR_UP : TR_DOWN, limit);
395}
396
397- (BOOL) usesGlobalSpeedLimit
398{
399    return tr_torrentUsesSessionLimits(fHandle);
400}
401
402- (void) setUseGlobalSpeedLimit: (BOOL) use
403{
404    tr_torrentUseSessionLimits(fHandle, use);
405}
406
407- (void) setMaxPeerConnect: (uint16_t) count
408{
409    NSAssert(count > 0, @"max peer count must be greater than 0");
410   
411    tr_torrentSetPeerLimit(fHandle, count);
412}
413
414- (uint16_t) maxPeerConnect
415{
416    return tr_torrentGetPeerLimit(fHandle);
417}
418
419- (void) setWaitToStart: (BOOL) wait
420{
421    fWaitToStart = wait;
422}
423
424- (BOOL) waitingToStart
425{
426    return fWaitToStart;
427}
428
429- (tr_priority_t) priority
430{
431    return tr_torrentGetPriority(fHandle);
432}
433
434- (void) setPriority: (tr_priority_t) priority
435{
436    return tr_torrentSetPriority(fHandle, priority);
437}
438
439#warning when 10.6-only use recycleURLs:completionHandler:
440+ (void) trashFile: (NSString *) path
441{
442    //attempt to move to trash
443    if (![[NSWorkspace sharedWorkspace] performFileOperation: NSWorkspaceRecycleOperation
444        source: [path stringByDeletingLastPathComponent] destination: @""
445        files: [NSArray arrayWithObject: [path lastPathComponent]] tag: nil])
446    {
447        //if cannot trash, just delete it (will work if it's on a remote volume)
448        NSError * error;
449        if (![[NSFileManager defaultManager] removeItemAtPath: path error: &error])
450            NSLog(@"Could not trash %@: %@", path, [error localizedDescription]);
451    }
452}
453
454- (void) trashData
455{
456    tr_torrentDeleteLocalData(fHandle, trashDataFile);
457}
458
459- (void) moveTorrentDataFileTo: (NSString *) folder
460{
461    NSString * oldFolder = [self currentDirectory];
462    if ([oldFolder isEqualToString: folder])
463        return;
464   
465    //check if moving inside itself
466    NSArray * oldComponents = [oldFolder pathComponents],
467            * newComponents = [folder pathComponents];
468    const NSInteger oldCount = [oldComponents count];
469   
470    if (oldCount < [newComponents count] && [[newComponents objectAtIndex: oldCount] isEqualToString: [self name]]
471        && [folder hasPrefix: oldFolder])
472    {
473        NSAlert * alert = [[NSAlert alloc] init];
474        [alert setMessageText: NSLocalizedString(@"A folder cannot be moved to inside itself.",
475                                                    "Move inside itself alert -> title")];
476        [alert setInformativeText: [NSString stringWithFormat:
477                        NSLocalizedString(@"The move operation of \"%@\" cannot be done.",
478                                            "Move inside itself alert -> message"), [self name]]];
479        [alert addButtonWithTitle: NSLocalizedString(@"OK", "Move inside itself alert -> button")];
480       
481        [alert runModal];
482        [alert release];
483       
484        return;
485    }
486   
487    volatile int status;
488    tr_torrentSetLocation(fHandle, [folder UTF8String], YES, NULL, &status);
489   
490    while (status == TR_LOC_MOVING) //block while moving (for now)
491        [NSThread sleepForTimeInterval: 0.05];
492   
493    if (status == TR_LOC_DONE)
494        [[NSNotificationCenter defaultCenter] postNotificationName: @"UpdateStats" object: nil];
495    else
496    {
497        NSAlert * alert = [[NSAlert alloc] init];
498        [alert setMessageText: NSLocalizedString(@"There was an error moving the data file.", "Move error alert -> title")];
499        [alert setInformativeText: [NSString stringWithFormat:
500                NSLocalizedString(@"The move operation of \"%@\" cannot be done.", "Move error alert -> message"), [self name]]];
501        [alert addButtonWithTitle: NSLocalizedString(@"OK", "Move error alert -> button")];
502       
503        [alert runModal];
504        [alert release];
505    }
506   
507    [self updateTimeMachineExclude];
508}
509
510- (void) copyTorrentFileTo: (NSString *) path
511{
512    [[NSFileManager defaultManager] copyItemAtPath: [self torrentLocation] toPath: path error: NULL];
513}
514
515- (BOOL) alertForRemainingDiskSpace
516{
517    if ([self allDownloaded] || ![fDefaults boolForKey: @"WarningRemainingSpace"])
518        return YES;
519   
520    NSString * downloadFolder = [self currentDirectory], * volumeName;
521    if ((volumeName = [[[NSFileManager defaultManager] componentsToDisplayForPath: downloadFolder] objectAtIndex: 0]))
522    {
523        NSDictionary * systemAttributes = [[NSFileManager defaultManager] attributesOfFileSystemForPath: downloadFolder error: NULL];
524        uint64_t remainingSpace = [[systemAttributes objectForKey: NSFileSystemFreeSize] unsignedLongLongValue];
525       
526        //if the remaining space is greater than the size left, then there is enough space regardless of preallocation
527        if (remainingSpace < [self sizeLeft] && remainingSpace < tr_torrentGetBytesLeftToAllocate(fHandle))
528        {
529            NSAlert * alert = [[NSAlert alloc] init];
530            [alert setMessageText: [NSString stringWithFormat:
531                                    NSLocalizedString(@"Not enough remaining disk space to download \"%@\" completely.",
532                                        "Torrent disk space alert -> title"), [self name]]];
533            [alert setInformativeText: [NSString stringWithFormat: NSLocalizedString(@"The transfer will be paused."
534                                        " Clear up space on %@ or deselect files in the torrent inspector to continue.",
535                                        "Torrent disk space alert -> message"), volumeName]];
536            [alert addButtonWithTitle: NSLocalizedString(@"OK", "Torrent disk space alert -> button")];
537            [alert addButtonWithTitle: NSLocalizedString(@"Download Anyway", "Torrent disk space alert -> button")];
538           
539            [alert setShowsSuppressionButton: YES];
540            [[alert suppressionButton] setTitle: NSLocalizedString(@"Do not check disk space again",
541                                                    "Torrent disk space alert -> button")];
542
543            const NSInteger result = [alert runModal];
544            if ([[alert suppressionButton] state] == NSOnState)
545                [fDefaults setBool: NO forKey: @"WarningRemainingSpace"];
546            [alert release];
547           
548            return result != NSAlertFirstButtonReturn;
549        }
550    }
551    return YES;
552}
553
554- (NSImage *) icon
555{
556    if ([self isMagnet])
557        return [NSImage imageNamed: @"Magnet.png"];
558   
559    #warning replace 'fldr' stuff with NSImageNameFolder on 10.6
560    if (!fIcon)
561        fIcon = [[[NSWorkspace sharedWorkspace] iconForFileType: [self isFolder] ? NSFileTypeForHFSTypeCode('fldr')
562                                                                                : [[self name] pathExtension]] retain];
563    return fIcon;
564}
565
566- (NSString *) name
567{
568    return fInfo->name != NULL ? [NSString stringWithUTF8String: fInfo->name] : @"";
569}
570
571- (BOOL) isFolder
572{
573    return fInfo->isMultifile;
574}
575
576- (uint64_t) size
577{
578    return fInfo->totalSize;
579}
580
581- (uint64_t) sizeLeft
582{
583    return fStat->leftUntilDone;
584}
585
586- (NSMutableArray *) allTrackerStats
587{
588    int count;
589    tr_tracker_stat * stats = tr_torrentTrackers(fHandle, &count);
590   
591    NSMutableArray * trackers = [NSMutableArray arrayWithCapacity: (count > 0 ? count + stats[count-1].tier : 0)];
592   
593    int prevTier = -1;
594    for (int i=0; i < count; ++i)
595    {
596        if (stats[i].tier != prevTier)
597        {
598            [trackers addObject: [NSNumber numberWithInteger: stats[i].tier]];
599            prevTier = stats[i].tier;
600        }
601       
602        TrackerNode * tracker = [[TrackerNode alloc] initWithTrackerStat: &stats[i]];
603        [trackers addObject: tracker];
604        [tracker release];
605    }
606   
607    tr_torrentTrackersFree(stats, count);
608    return trackers;
609}
610
611- (NSArray *) allTrackersFlat
612{
613    NSMutableArray * allTrackers = [NSMutableArray arrayWithCapacity: fInfo->trackerCount];
614   
615    for (NSInteger i=0; i < fInfo->trackerCount; i++)
616        [allTrackers addObject: [NSString stringWithUTF8String: fInfo->trackers[i].announce]];
617   
618    return allTrackers;
619}
620
621- (BOOL) addTrackerToNewTier: (NSString *) tracker
622{
623    tracker = [tracker stringByTrimmingCharactersInSet: [NSCharacterSet whitespaceAndNewlineCharacterSet]];
624   
625    if ([tracker rangeOfString: @"://"].location == NSNotFound)
626        tracker = [@"http://" stringByAppendingString: tracker];
627   
628    //recreate the tracker structure
629    const int oldTrackerCount = fInfo->trackerCount;
630    tr_tracker_info * trackerStructs = tr_new(tr_tracker_info, oldTrackerCount+1);
631    for (NSUInteger i=0; i < oldTrackerCount; ++i)
632    {
633        trackerStructs[i] = fInfo->trackers[i];
634        trackerStructs[i].id = i;
635    }
636   
637    trackerStructs[oldTrackerCount].announce = (char *)[tracker UTF8String];
638    trackerStructs[oldTrackerCount].tier = trackerStructs[oldTrackerCount-1].tier + 1;
639    trackerStructs[oldTrackerCount].id = oldTrackerCount;
640   
641    const BOOL success = tr_torrentSetAnnounceList(fHandle, trackerStructs, oldTrackerCount+1);
642    tr_free(trackerStructs);
643   
644    return success;
645}
646
647- (void) removeTrackersWithIdentifiers: (NSIndexSet *) removeIdentifiers
648{
649    //recreate the tracker structure
650    tr_tracker_info * trackerStructs = tr_new(tr_tracker_info, fInfo->trackerCount);
651   
652    NSUInteger newCount = 0;
653    for (NSUInteger i = 0; i < fInfo->trackerCount; i++)
654    {
655        if (![removeIdentifiers containsIndex: fInfo->trackers[i].id])
656        {
657            trackerStructs[newCount] = fInfo->trackers[i];
658            trackerStructs[newCount].id = newCount++;
659        }
660    }
661   
662    const BOOL success = tr_torrentSetAnnounceList(fHandle, trackerStructs, newCount);
663    NSAssert(success, @"Removing tracker addresses failed");
664   
665    tr_free(trackerStructs);
666}
667
668- (NSString *) comment
669{
670    return fInfo->comment ? [NSString stringWithUTF8String: fInfo->comment] : @"";
671}
672
673- (NSString *) creator
674{
675    return fInfo->creator ? [NSString stringWithUTF8String: fInfo->creator] : @"";
676}
677
678- (NSDate *) dateCreated
679{
680    NSInteger date = fInfo->dateCreated;
681    return date > 0 ? [NSDate dateWithTimeIntervalSince1970: date] : nil;
682}
683
684- (NSInteger) pieceSize
685{
686    return fInfo->pieceSize;
687}
688
689- (NSInteger) pieceCount
690{
691    return fInfo->pieceCount;
692}
693
694- (NSString *) hashString
695{
696    return fHashString;
697}
698
699- (BOOL) privateTorrent
700{
701    return fInfo->isPrivate;
702}
703
704- (NSString *) torrentLocation
705{
706    return fInfo->torrent ? [NSString stringWithUTF8String: fInfo->torrent] : @"";
707}
708
709- (NSString *) dataLocation
710{
711    if ([self isMagnet])
712        return nil;
713   
714    if ([self isFolder])
715    {
716        NSString * dataLocation = [[self currentDirectory] stringByAppendingPathComponent: [self name]];
717       
718        if (![[NSFileManager defaultManager] fileExistsAtPath: dataLocation])
719            return nil;
720       
721        return dataLocation;
722    }
723    else
724    {
725        char * location = tr_torrentFindFile(fHandle, 0);
726        if (location == NULL)
727            return nil;
728       
729        NSString * dataLocation = [NSString stringWithUTF8String: location];
730        free(location);
731       
732        return dataLocation;
733    }
734}
735
736- (NSString *) fileLocation: (FileListNode *) node
737{
738    if ([node isFolder])
739    {
740        NSString * basePath = [[node path] stringByAppendingPathComponent: [node name]];
741        NSString * dataLocation = [[self currentDirectory] stringByAppendingPathComponent: basePath];
742       
743        if (![[NSFileManager defaultManager] fileExistsAtPath: dataLocation])
744            return nil;
745       
746        return dataLocation;
747    }
748    else
749    {
750        char * location = tr_torrentFindFile(fHandle, [[node indexes] firstIndex]);
751        if (location == NULL)
752            return nil;
753       
754        NSString * dataLocation = [NSString stringWithUTF8String: location];
755        free(location);
756       
757        return dataLocation;
758    }
759}
760
761- (CGFloat) progress
762{
763    return fStat->percentComplete;
764}
765
766- (CGFloat) progressDone
767{
768    return fStat->percentDone;
769}
770
771- (CGFloat) progressLeft
772{
773    if ([self size] == 0) //magnet links
774        return 0.0;
775   
776    return (CGFloat)[self sizeLeft] / [self size];
777}
778
779- (CGFloat) checkingProgress
780{
781    return fStat->recheckProgress;
782}
783
784- (NSInteger) eta
785{
786    return fStat->eta;
787}
788
789- (CGFloat) availableDesired
790{
791    return (CGFloat)fStat->desiredAvailable / [self sizeLeft];
792}
793
794- (BOOL) isActive
795{
796    return fStat->activity != TR_STATUS_STOPPED;
797}
798
799- (BOOL) isSeeding
800{
801    return fStat->activity == TR_STATUS_SEED;
802}
803
804- (BOOL) isChecking
805{
806    return fStat->activity == TR_STATUS_CHECK || fStat->activity == TR_STATUS_CHECK_WAIT;
807}
808
809- (BOOL) isCheckingWaiting
810{
811    return fStat->activity == TR_STATUS_CHECK_WAIT;
812}
813
814- (BOOL) allDownloaded
815{
816    return [self sizeLeft] == 0 && ![self isMagnet];
817}
818
819- (BOOL) isComplete
820{
821    return [self progress] >= 1.0;
822}
823
824- (BOOL) isError
825{
826    return fStat->error == TR_STAT_LOCAL_ERROR;
827}
828
829- (BOOL) isAnyErrorOrWarning
830{
831    return fStat->error != TR_STAT_OK;
832}
833
834- (NSString *) errorMessage
835{
836    if (![self isAnyErrorOrWarning])
837        return @"";
838   
839    NSString * error;
840    if (!(error = [NSString stringWithUTF8String: fStat->errorString])
841        && !(error = [NSString stringWithCString: fStat->errorString encoding: NSISOLatin1StringEncoding]))
842        error = [NSString stringWithFormat: @"(%@)", NSLocalizedString(@"unreadable error", "Torrent -> error string unreadable")];
843   
844    //libtransmission uses "Set Location", Mac client uses "Move data file to..." - very hacky!
845    error = [error stringByReplacingOccurrencesOfString: @"Set Location" withString: [@"Move Data File To" stringByAppendingEllipsis]];
846   
847    return error;
848}
849
850- (NSArray *) peers
851{
852    int totalPeers;
853    tr_peer_stat * peers = tr_torrentPeers(fHandle, &totalPeers);
854   
855    NSMutableArray * peerDicts = [NSMutableArray arrayWithCapacity: totalPeers];
856   
857    for (int i = 0; i < totalPeers; i++)
858    {
859        tr_peer_stat * peer = &peers[i];
860        NSMutableDictionary * dict = [NSMutableDictionary dictionaryWithCapacity: 10];
861       
862        [dict setObject: [NSNumber numberWithInt: peer->from] forKey: @"From"];
863        [dict setObject: [NSString stringWithUTF8String: peer->addr] forKey: @"IP"];
864        [dict setObject: [NSNumber numberWithInt: peer->port] forKey: @"Port"];
865        [dict setObject: [NSNumber numberWithFloat: peer->progress] forKey: @"Progress"];
866        [dict setObject: [NSNumber numberWithBool: peer->isSeed] forKey: @"Seed"];
867        [dict setObject: [NSNumber numberWithBool: peer->isEncrypted] forKey: @"Encryption"];
868        [dict setObject: [NSString stringWithUTF8String: peer->client] forKey: @"Client"];
869        [dict setObject: [NSString stringWithUTF8String: peer->flagStr] forKey: @"Flags"];
870       
871        if (peer->isUploadingTo)
872            [dict setObject: [NSNumber numberWithFloat: peer->rateToPeer] forKey: @"UL To Rate"];
873        if (peer->isDownloadingFrom)
874            [dict setObject: [NSNumber numberWithFloat: peer->rateToClient] forKey: @"DL From Rate"];
875       
876        [peerDicts addObject: dict];
877    }
878   
879    tr_torrentPeersFree(peers, totalPeers);
880   
881    return peerDicts;
882}
883
884- (NSUInteger) webSeedCount
885{
886    return fInfo->webseedCount;
887}
888
889- (NSArray *) webSeeds
890{
891    const NSInteger webSeedCount = fInfo->webseedCount;
892    NSMutableArray * webSeeds = [NSMutableArray arrayWithCapacity: webSeedCount];
893   
894    float * dlSpeeds = tr_torrentWebSpeeds(fHandle);
895   
896    for (NSInteger i = 0; i < webSeedCount; i++)
897    {
898        NSMutableDictionary * dict = [NSMutableDictionary dictionaryWithCapacity: 2];
899       
900        [dict setObject: [NSString stringWithUTF8String: fInfo->webseeds[i]] forKey: @"Address"];
901       
902        if (dlSpeeds[i] != -1.0)
903            [dict setObject: [NSNumber numberWithFloat: dlSpeeds[i]] forKey: @"DL From Rate"];
904       
905        [webSeeds addObject: dict];
906    }
907   
908    tr_free(dlSpeeds);
909   
910    return webSeeds;
911}
912
913- (NSString *) progressString
914{
915    if ([self isMagnet])
916    {
917        NSString * progressString = fStat->metadataPercentComplete > 0.0
918                    ? [NSString localizedStringWithFormat: NSLocalizedString(@"%.2f%% of torrent metadata retrieved",
919                        "Torrent -> progress string"), 100.0 * fStat->metadataPercentComplete]
920                    : NSLocalizedString(@"torrent metadata needed", "Torrent -> progress string");
921       
922        return [NSString stringWithFormat: @"%@ - %@", NSLocalizedString(@"Magnetized transfer", "Torrent -> progress string"),
923                                            progressString];
924    }
925   
926    NSString * string;
927   
928    if (![self allDownloaded])
929    {
930        CGFloat progress;
931        if ([self isFolder] && [fDefaults boolForKey: @"DisplayStatusProgressSelected"])
932        {
933            string = [NSString stringWithFormat: NSLocalizedString(@"%@ of %@ selected", "Torrent -> progress string"),
934                        [NSString stringForFileSize: [self haveTotal]], [NSString stringForFileSize: [self totalSizeSelected]]];
935            progress = 100.0 * [self progressDone];
936        }
937        else
938        {
939            string = [NSString stringWithFormat: NSLocalizedString(@"%@ of %@", "Torrent -> progress string"),
940                        [NSString stringForFileSize: [self haveTotal]], [NSString stringForFileSize: [self size]]];
941            progress = 100.0 * [self progress];
942        }
943       
944        string = [NSString localizedStringWithFormat: @"%@ (%.2f%%)", string, progress];
945    }
946    else
947    {
948        NSString * downloadString;
949        if (![self isComplete]) //only multifile possible
950        {
951            if ([fDefaults boolForKey: @"DisplayStatusProgressSelected"])
952                downloadString = [NSString stringWithFormat: NSLocalizedString(@"%@ selected", "Torrent -> progress string"),
953                                    [NSString stringForFileSize: [self haveTotal]]];
954            else
955            {
956                downloadString = [NSString stringWithFormat: NSLocalizedString(@"%@ of %@", "Torrent -> progress string"),
957                                    [NSString stringForFileSize: [self haveTotal]], [NSString stringForFileSize: [self size]]];
958               
959                downloadString = [NSString localizedStringWithFormat: @"%@ (%.2f%%)", downloadString, 100.0 * [self progress]];
960            }
961        }
962        else
963            downloadString = [NSString stringForFileSize: [self size]];
964       
965        NSString * uploadString = [NSString stringWithFormat: NSLocalizedString(@"uploaded %@ (Ratio: %@)",
966                                    "Torrent -> progress string"), [NSString stringForFileSize: [self uploadedTotal]],
967                                    [NSString stringForRatio: [self ratio]]];
968       
969        string = [downloadString stringByAppendingFormat: @", %@", uploadString];
970    }
971   
972    //add time when downloading
973    if (fStat->activity == TR_STATUS_DOWNLOAD || ([self isSeeding] && [self seedRatioSet]))
974        string = [string stringByAppendingFormat: @" - %@", [self etaString]];
975   
976    return string;
977}
978
979- (NSString *) statusString
980{
981    NSString * string;
982   
983    if ([self isAnyErrorOrWarning])
984    {
985        switch (fStat->error)
986        {
987            case TR_STAT_LOCAL_ERROR: string = NSLocalizedString(@"Error", "Torrent -> status string"); break;
988            case TR_STAT_TRACKER_ERROR: string = NSLocalizedString(@"Tracker returned an error", "Torrent -> status string"); break;
989            case TR_STAT_TRACKER_WARNING: string = NSLocalizedString(@"Tracker returned a warning", "Torrent -> status string"); break;
990            default: NSAssert(NO, @"unknown error state");
991        }
992       
993        NSString * errorString = [self errorMessage];
994        if (errorString && ![errorString isEqualToString: @""])
995            string = [string stringByAppendingFormat: @": %@", errorString];
996    }
997    else
998    {
999        switch (fStat->activity)
1000        {
1001            case TR_STATUS_STOPPED:
1002                if (fWaitToStart)
1003                {
1004                    string = ![self allDownloaded]
1005                            ? [NSLocalizedString(@"Waiting to download", "Torrent -> status string") stringByAppendingEllipsis]
1006                            : [NSLocalizedString(@"Waiting to seed", "Torrent -> status string") stringByAppendingEllipsis];
1007                }
1008                else if (fFinishedSeeding)
1009                    string = NSLocalizedString(@"Seeding complete", "Torrent -> status string");
1010                else
1011                    string = NSLocalizedString(@"Paused", "Torrent -> status string");
1012                break;
1013
1014            case TR_STATUS_CHECK_WAIT:
1015                string = [NSLocalizedString(@"Waiting to check existing data", "Torrent -> status string") stringByAppendingEllipsis];
1016                break;
1017
1018            case TR_STATUS_CHECK:
1019                string = [NSString localizedStringWithFormat: @"%@ (%.2f%%)",
1020                            NSLocalizedString(@"Checking existing data", "Torrent -> status string"), 100.0 * [self checkingProgress]];
1021                break;
1022
1023            case TR_STATUS_DOWNLOAD:
1024                if ([self totalPeersConnected] != 1)
1025                    string = [NSString stringWithFormat: NSLocalizedString(@"Downloading from %d of %d peers",
1026                                                    "Torrent -> status string"), [self peersSendingToUs], [self totalPeersConnected]];
1027                else
1028                    string = [NSString stringWithFormat: NSLocalizedString(@"Downloading from %d of 1 peer",
1029                                                    "Torrent -> status string"), [self peersSendingToUs]];
1030               
1031                const NSInteger webSeedCount = fStat->webseedsSendingToUs;
1032                if (webSeedCount > 0)
1033                {
1034                    NSString * webSeedString;
1035                    if (webSeedCount == 1)
1036                        webSeedString = NSLocalizedString(@"web seed", "Torrent -> status string");
1037                    else
1038                        webSeedString = [NSString stringWithFormat: NSLocalizedString(@"%d web seeds", "Torrent -> status string"),
1039                                                                    webSeedCount];
1040                   
1041                    string = [string stringByAppendingFormat: @" + %@", webSeedString];
1042                }
1043               
1044                break;
1045
1046            case TR_STATUS_SEED:
1047                if ([self totalPeersConnected] != 1)
1048                    string = [NSString stringWithFormat: NSLocalizedString(@"Seeding to %d of %d peers", "Torrent -> status string"),
1049                                                    [self peersGettingFromUs], [self totalPeersConnected]];
1050                else
1051                    string = [NSString stringWithFormat: NSLocalizedString(@"Seeding to %d of 1 peer", "Torrent -> status string"),
1052                                                    [self peersGettingFromUs]];
1053        }
1054       
1055        if (fStalled)
1056            string = [NSLocalizedString(@"Stalled", "Torrent -> status string") stringByAppendingFormat: @", %@", string];
1057    }
1058   
1059    //append even if error
1060    if ([self isActive] && ![self isChecking])
1061    {
1062        if (fStat->activity == TR_STATUS_DOWNLOAD)
1063            string = [string stringByAppendingFormat: @" - %@: %@, %@: %@",
1064                        NSLocalizedString(@"DL", "Torrent -> status string"), [NSString stringForSpeed: [self downloadRate]],
1065                        NSLocalizedString(@"UL", "Torrent -> status string"), [NSString stringForSpeed: [self uploadRate]]];
1066        else
1067            string = [string stringByAppendingFormat: @" - %@: %@",
1068                        NSLocalizedString(@"UL", "Torrent -> status string"), [NSString stringForSpeed: [self uploadRate]]];
1069    }
1070   
1071    return string;
1072}
1073
1074- (NSString *) shortStatusString
1075{
1076    NSString * string;
1077   
1078    switch (fStat->activity)
1079    {
1080        case TR_STATUS_STOPPED:
1081            if (fWaitToStart)
1082            {
1083                string = ![self allDownloaded]
1084                        ? [NSLocalizedString(@"Waiting to download", "Torrent -> status string") stringByAppendingEllipsis]
1085                        : [NSLocalizedString(@"Waiting to seed", "Torrent -> status string") stringByAppendingEllipsis];
1086            }
1087            else if (fFinishedSeeding)
1088                string = NSLocalizedString(@"Seeding complete", "Torrent -> status string");
1089            else
1090                string = NSLocalizedString(@"Paused", "Torrent -> status string");
1091            break;
1092
1093        case TR_STATUS_CHECK_WAIT:
1094            string = [NSLocalizedString(@"Waiting to check existing data", "Torrent -> status string") stringByAppendingEllipsis];
1095            break;
1096
1097        case TR_STATUS_CHECK:
1098            string = [NSString localizedStringWithFormat: @"%@ (%.2f%%)",
1099                        NSLocalizedString(@"Checking existing data", "Torrent -> status string"), 100.0 * [self checkingProgress]];
1100            break;
1101       
1102        case TR_STATUS_DOWNLOAD:
1103            string = [NSString stringWithFormat: @"%@: %@, %@: %@",
1104                            NSLocalizedString(@"DL", "Torrent -> status string"), [NSString stringForSpeed: [self downloadRate]],
1105                            NSLocalizedString(@"UL", "Torrent -> status string"), [NSString stringForSpeed: [self uploadRate]]];
1106            break;
1107       
1108        case TR_STATUS_SEED:
1109            string = [NSString stringWithFormat: @"%@: %@, %@: %@",
1110                            NSLocalizedString(@"Ratio", "Torrent -> status string"), [NSString stringForRatio: [self ratio]],
1111                            NSLocalizedString(@"UL", "Torrent -> status string"), [NSString stringForSpeed: [self uploadRate]]];
1112    }
1113   
1114    return string;
1115}
1116
1117- (NSString *) remainingTimeString
1118{
1119    if (fStat->activity == TR_STATUS_DOWNLOAD || ([self isSeeding] && [self seedRatioSet]))
1120        return [self etaString];
1121    else
1122        return [self shortStatusString];
1123}
1124
1125- (NSString *) stateString
1126{
1127    switch (fStat->activity)
1128    {
1129        case TR_STATUS_STOPPED:
1130            return NSLocalizedString(@"Paused", "Torrent -> status string");
1131
1132        case TR_STATUS_CHECK:
1133            return [NSString localizedStringWithFormat: @"%@ (%.2f%%)",
1134                    NSLocalizedString(@"Checking existing data", "Torrent -> status string"), 100.0 * [self checkingProgress]];
1135       
1136        case TR_STATUS_CHECK_WAIT:
1137            return [NSLocalizedString(@"Waiting to check existing data", "Torrent -> status string") stringByAppendingEllipsis];
1138
1139        case TR_STATUS_DOWNLOAD:
1140            return NSLocalizedString(@"Downloading", "Torrent -> status string");
1141
1142        case TR_STATUS_SEED:
1143            return NSLocalizedString(@"Seeding", "Torrent -> status string");
1144    }
1145}
1146
1147- (NSInteger) totalPeersConnected
1148{
1149    return fStat->peersConnected;
1150}
1151
1152- (NSInteger) totalPeersTracker
1153{
1154    return fStat->peersFrom[TR_PEER_FROM_TRACKER];
1155}
1156
1157- (NSInteger) totalPeersIncoming
1158{
1159    return fStat->peersFrom[TR_PEER_FROM_INCOMING];
1160}
1161
1162- (NSInteger) totalPeersCache
1163{
1164    return fStat->peersFrom[TR_PEER_FROM_RESUME];
1165}
1166
1167- (NSInteger) totalPeersPex
1168{
1169    return fStat->peersFrom[TR_PEER_FROM_PEX];
1170}
1171
1172- (NSInteger) totalPeersDHT
1173{
1174    return fStat->peersFrom[TR_PEER_FROM_DHT];
1175}
1176
1177- (NSInteger) totalPeersLTEP
1178{
1179    return fStat->peersFrom[TR_PEER_FROM_LTEP];
1180}
1181
1182- (NSInteger) totalPeersKnown
1183{
1184    return fStat->peersKnown;
1185}
1186
1187- (NSInteger) peersSendingToUs
1188{
1189    return fStat->peersSendingToUs;
1190}
1191
1192- (NSInteger) peersGettingFromUs
1193{
1194    return fStat->peersGettingFromUs;
1195}
1196
1197- (CGFloat) downloadRate
1198{
1199    return fStat->pieceDownloadSpeed;
1200}
1201
1202- (CGFloat) uploadRate
1203{
1204    return fStat->pieceUploadSpeed;
1205}
1206
1207- (CGFloat) totalRate
1208{
1209    return [self downloadRate] + [self uploadRate];
1210}
1211
1212- (uint64_t) haveVerified
1213{
1214    return fStat->haveValid;
1215}
1216
1217- (uint64_t) haveTotal
1218{
1219    return [self haveVerified] + fStat->haveUnchecked;
1220}
1221
1222- (uint64_t) totalSizeSelected
1223{
1224    return fStat->sizeWhenDone;
1225}
1226
1227- (uint64_t) downloadedTotal
1228{
1229    return fStat->downloadedEver;
1230}
1231
1232- (uint64_t) uploadedTotal
1233{
1234    return fStat->uploadedEver;
1235}
1236
1237- (uint64_t) failedHash
1238{
1239    return fStat->corruptEver;
1240}
1241
1242- (NSInteger) groupValue
1243{
1244    return fGroupValue;
1245}
1246
1247- (void) setGroupValue: (NSInteger) goupValue
1248{
1249    fGroupValue = goupValue;
1250}
1251
1252- (NSInteger) groupOrderValue
1253{
1254    return [[GroupsController groups] rowValueForIndex: fGroupValue];
1255}
1256
1257- (void) checkGroupValueForRemoval: (NSNotification *) notification
1258{
1259    if (fGroupValue != -1 && [[[notification userInfo] objectForKey: @"Index"] integerValue] == fGroupValue)
1260        fGroupValue = -1;
1261}
1262
1263- (NSArray *) fileList
1264{
1265    return fFileList;
1266}
1267
1268- (NSArray *) flatFileList
1269{
1270    return fFlatFileList;
1271}
1272
1273- (NSInteger) fileCount
1274{
1275    return fInfo->fileCount;
1276}
1277
1278- (void) updateFileStat
1279{
1280    if (fFileStat)
1281        tr_torrentFilesFree(fFileStat, [self fileCount]);
1282   
1283    fFileStat = tr_torrentFiles(fHandle, NULL);
1284}
1285
1286- (CGFloat) fileProgress: (FileListNode *) node
1287{
1288    if ([self fileCount] == 1 || [self isComplete])
1289        return [self progress];
1290   
1291    if (!fFileStat)
1292        [self updateFileStat];
1293   
1294    NSIndexSet * indexSet = [node indexes];
1295   
1296    if ([indexSet count] == 1)
1297        return fFileStat[[indexSet firstIndex]].progress;
1298   
1299    uint64_t have = 0;
1300    for (NSInteger index = [indexSet firstIndex]; index != NSNotFound; index = [indexSet indexGreaterThanIndex: index])
1301        have += fFileStat[index].bytesCompleted;
1302   
1303    NSAssert([node size], @"directory in torrent file has size 0");
1304    return (CGFloat)have / [node size];
1305}
1306
1307- (BOOL) canChangeDownloadCheckForFile: (NSUInteger) index
1308{
1309    NSAssert2(index < [self fileCount], @"Index %d is greater than file count %d", index, [self fileCount]);
1310   
1311    if ([self fileCount] == 1 || [self isComplete])
1312        return NO;
1313   
1314    if (!fFileStat)
1315        [self updateFileStat];
1316   
1317    return fFileStat[index].progress < 1.0;
1318}
1319
1320- (BOOL) canChangeDownloadCheckForFiles: (NSIndexSet *) indexSet
1321{
1322    if ([self fileCount] == 1 || [self isComplete])
1323        return NO;
1324   
1325    if (!fFileStat)
1326        [self updateFileStat];
1327   
1328    for (NSUInteger index = [indexSet firstIndex]; index != NSNotFound; index = [indexSet indexGreaterThanIndex: index])
1329        if (fFileStat[index].progress < 1.0)
1330            return YES;
1331    return NO;
1332}
1333
1334- (NSInteger) checkForFiles: (NSIndexSet *) indexSet
1335{
1336    NSAssert(indexSet != nil, @"indexSet must not be nil");
1337   
1338    BOOL onState = NO, offState = NO;
1339    for (NSUInteger index = [indexSet firstIndex]; index != NSNotFound; index = [indexSet indexGreaterThanIndex: index])
1340    {
1341        if (tr_torrentGetFileDL(fHandle, index) || ![self canChangeDownloadCheckForFile: index])
1342            onState = YES;
1343        else
1344            offState = YES;
1345       
1346        if (onState && offState)
1347            return NSMixedState;
1348    }
1349    return onState ? NSOnState : NSOffState;
1350}
1351
1352- (void) setFileCheckState: (NSInteger) state forIndexes: (NSIndexSet *) indexSet
1353{
1354    NSUInteger count = [indexSet count];
1355    tr_file_index_t * files = malloc(count * sizeof(tr_file_index_t));
1356    for (NSUInteger index = [indexSet firstIndex], i = 0; index != NSNotFound; index = [indexSet indexGreaterThanIndex: index], i++)
1357        files[i] = index;
1358   
1359    tr_torrentSetFileDLs(fHandle, files, count, state != NSOffState);
1360    free(files);
1361   
1362    [self update];
1363    [[NSNotificationCenter defaultCenter] postNotificationName: @"TorrentFileCheckChange" object: self];
1364}
1365
1366- (void) setFilePriority: (tr_priority_t) priority forIndexes: (NSIndexSet *) indexSet
1367{
1368    const NSUInteger count = [indexSet count];
1369    tr_file_index_t * files = tr_malloc(count * sizeof(tr_file_index_t));
1370    for (NSUInteger index = [indexSet firstIndex], i = 0; index != NSNotFound; index = [indexSet indexGreaterThanIndex: index], i++)
1371        files[i] = index;
1372   
1373    tr_torrentSetFilePriorities(fHandle, files, count, priority);
1374    tr_free(files);
1375}
1376
1377- (BOOL) hasFilePriority: (tr_priority_t) priority forIndexes: (NSIndexSet *) indexSet
1378{
1379    for (NSUInteger index = [indexSet firstIndex]; index != NSNotFound; index = [indexSet indexGreaterThanIndex: index])
1380        if (priority == tr_torrentGetFilePriority(fHandle, index) && [self canChangeDownloadCheckForFile: index])
1381            return YES;
1382    return NO;
1383}
1384
1385- (NSSet *) filePrioritiesForIndexes: (NSIndexSet *) indexSet
1386{
1387    BOOL low = NO, normal = NO, high = NO;
1388    NSMutableSet * priorities = [NSMutableSet setWithCapacity: MIN([indexSet count], 3)];
1389   
1390    for (NSUInteger index = [indexSet firstIndex]; index != NSNotFound; index = [indexSet indexGreaterThanIndex: index])
1391    {
1392        if (![self canChangeDownloadCheckForFile: index])
1393            continue;
1394       
1395        const tr_priority_t priority = tr_torrentGetFilePriority(fHandle, index);
1396        if (priority == TR_PRI_LOW)
1397        {
1398            if (low)
1399                continue;
1400            low = YES;
1401        }
1402        else if (priority == TR_PRI_HIGH)
1403        {
1404            if (high)
1405                continue;
1406            high = YES;
1407        }
1408        else
1409        {
1410            if (normal)
1411                continue;
1412            normal = YES;
1413        }
1414       
1415        [priorities addObject: [NSNumber numberWithInteger: priority]];
1416        if (low && normal && high)
1417            break;
1418    }
1419    return priorities;
1420}
1421
1422- (NSDate *) dateAdded
1423{
1424    const time_t date = fStat->addedDate;
1425    return [NSDate dateWithTimeIntervalSince1970: date];
1426}
1427
1428- (NSDate *) dateCompleted
1429{
1430    const time_t date = fStat->doneDate;
1431    return date != 0 ? [NSDate dateWithTimeIntervalSince1970: date] : nil;
1432}
1433
1434- (NSDate *) dateActivity
1435{
1436    const time_t date = fStat->activityDate;
1437    return date != 0 ? [NSDate dateWithTimeIntervalSince1970: date] : nil;
1438}
1439
1440- (NSDate *) dateActivityOrAdd
1441{
1442    NSDate * date = [self dateActivity];
1443    return date ? date : [self dateAdded];
1444}
1445
1446- (NSInteger) stalledMinutes
1447{
1448    const time_t start = fStat->startDate;
1449    if (start == 0)
1450        return -1;
1451   
1452    NSDate * started = [NSDate dateWithTimeIntervalSince1970: start],
1453            * activity = [self dateActivity];
1454   
1455    NSDate * laterDate = activity ? [started laterDate: activity] : started;
1456   
1457    return ABS([laterDate timeIntervalSinceNow]) / 60;
1458}
1459
1460- (BOOL) isStalled
1461{
1462    return fStalled;
1463}
1464
1465- (void) updateTimeMachineExclude
1466{
1467    NSString * currentLocation = ![self allDownloaded] ? [self dataLocation] : nil;
1468   
1469    //return if the locations are the same
1470    if (fTimeMachineExclude && currentLocation && [fTimeMachineExclude isEqualToString: currentLocation])
1471        return;
1472   
1473    //remove old location...
1474    if (fTimeMachineExclude)
1475    {
1476        [self setTimeMachineExclude: NO forPath: fTimeMachineExclude];
1477        [fTimeMachineExclude release];
1478        fTimeMachineExclude = nil;
1479    }
1480   
1481    //...set new location
1482    if (currentLocation)
1483    {
1484        [self setTimeMachineExclude: YES forPath: currentLocation];
1485        fTimeMachineExclude = [currentLocation retain];
1486    }
1487}
1488
1489- (NSInteger) stateSortKey
1490{
1491    if (![self isActive]) //paused
1492    {
1493        if (fWaitToStart)
1494            return 1;
1495        else
1496            return 0;
1497    }
1498    else if ([self isSeeding]) //seeding
1499        return 10;
1500    else //downloading
1501        return 20;
1502}
1503
1504- (NSString *) trackerSortKey
1505{
1506    int count;
1507    tr_tracker_stat * stats = tr_torrentTrackers(fHandle, &count);
1508   
1509    NSString * best = nil;
1510   
1511    for (int i=0; i < count; ++i)
1512    {
1513        NSString * tracker = [NSString stringWithUTF8String: stats[i].host];
1514        if (!best || [tracker localizedCaseInsensitiveCompare: best] == NSOrderedAscending)
1515            best = tracker;
1516    }
1517   
1518    tr_torrentTrackersFree(stats, count);
1519    return best;
1520}
1521
1522- (tr_torrent *) torrentStruct
1523{
1524    return fHandle;
1525}
1526
1527- (NSURL *) previewItemURL
1528{
1529    NSString * location = [self dataLocation];
1530    return location ? [NSURL fileURLWithPath: location] : nil;
1531}
1532
1533@end
1534
1535@implementation Torrent (Private)
1536
1537- (id) initWithPath: (NSString *) path hash: (NSString *) hashString torrentStruct: (tr_torrent *) torrentStruct
1538        magnetAddress: (NSString *) magnetAddress lib: (tr_session *) lib
1539        waitToStart: (NSNumber *) waitToStart
1540        groupValue: (NSNumber *) groupValue
1541        downloadFolder: (NSString *) downloadFolder legacyIncompleteFolder: (NSString *) incompleteFolder
1542{
1543    if (!(self = [super init]))
1544        return nil;
1545   
1546    fDefaults = [NSUserDefaults standardUserDefaults];
1547   
1548    if (torrentStruct)
1549        fHandle = torrentStruct;
1550    else
1551    {
1552        //set libtransmission settings for initialization
1553        tr_ctor * ctor = tr_ctorNew(lib);
1554       
1555        tr_ctorSetPaused(ctor, TR_FORCE, YES);
1556        if (downloadFolder)
1557            tr_ctorSetDownloadDir(ctor, TR_FORCE, [downloadFolder UTF8String]);
1558        if (incompleteFolder)
1559            tr_ctorSetIncompleteDir(ctor, [incompleteFolder UTF8String]);
1560       
1561        tr_parse_result result = TR_PARSE_ERR;
1562        if (path)
1563            result = tr_ctorSetMetainfoFromFile(ctor, [path UTF8String]);
1564       
1565        if (result != TR_PARSE_OK && magnetAddress)
1566            result = tr_ctorSetMagnet(ctor, [magnetAddress UTF8String]);
1567       
1568        //backup - shouldn't be needed after upgrade to 1.70
1569        if (result != TR_PARSE_OK && hashString)
1570            result = tr_ctorSetMetainfoFromHash(ctor, [hashString UTF8String]);
1571       
1572        if (result == TR_PARSE_OK)
1573            fHandle = tr_torrentNew(ctor, NULL);
1574       
1575        tr_ctorFree(ctor);
1576       
1577        if (!fHandle)
1578        {
1579            [self release];
1580            return nil;
1581        }
1582    }
1583
1584    fInfo = tr_torrentInfo(fHandle);
1585   
1586    tr_torrentSetCompletenessCallback(fHandle, completenessChangeCallback, self);
1587    tr_torrentSetRatioLimitHitCallback(fHandle, ratioLimitHitCallback, self);
1588    tr_torrentSetMetadataCallback(fHandle, metadataCallback, self);
1589   
1590    fHashString = [[NSString alloc] initWithUTF8String: fInfo->hashString];
1591       
1592    fFinishedSeeding = NO;
1593   
1594    fWaitToStart = waitToStart && [waitToStart boolValue];
1595    fResumeOnWake = NO;
1596   
1597    //don't do after this point - it messes with auto-group functionality
1598    if (![self isMagnet])
1599        [self createFileList];
1600       
1601    fGroupValue = groupValue ? [groupValue intValue] : [[GroupsController groups] groupIndexForTorrent: self];
1602   
1603    [[NSNotificationCenter defaultCenter] addObserver: self selector: @selector(checkGroupValueForRemoval:)
1604        name: @"GroupValueRemoved" object: nil];
1605   
1606    fTimeMachineExclude = nil;
1607    [self update];
1608   
1609    return self;
1610}
1611
1612- (void) createFileList
1613{
1614    NSAssert(![self isMagnet], @"Cannot create a file list until the torrent is demagnetized");
1615   
1616    if ([self isFolder])
1617    {
1618        NSInteger count = [self fileCount];
1619        NSMutableArray * fileList = [NSMutableArray arrayWithCapacity: count],
1620                    * flatFileList = [NSMutableArray arrayWithCapacity: count];
1621       
1622        for (NSInteger i = 0; i < count; i++)
1623        {
1624            tr_file * file = &fInfo->files[i];
1625           
1626            NSString * fullPath = [NSString stringWithUTF8String: file->name];
1627            NSArray * pathComponents = [fullPath pathComponents];
1628            NSAssert1([pathComponents count] >= 2, @"Not enough components in path %@", fullPath);
1629           
1630            NSString * path = [pathComponents objectAtIndex: 0];
1631            NSString * name = [pathComponents objectAtIndex: 1];
1632           
1633            if ([pathComponents count] > 2)
1634            {
1635                //determine if folder node already exists
1636                FileListNode * node;
1637                for (node in fileList)
1638                    if ([[node name] isEqualToString: name] && [node isFolder])
1639                        break;
1640               
1641                if (!node)
1642                {
1643                    node = [[FileListNode alloc] initWithFolderName: name path: path];
1644                    [fileList addObject: node];
1645                    [node release];
1646                }
1647               
1648                NSMutableArray * trimmedComponents = [NSMutableArray arrayWithArray: [pathComponents subarrayWithRange:
1649                                                        NSMakeRange(2, [pathComponents count]-2)]];
1650               
1651                [node insertIndex: i withSize: file->length];
1652                [self insertPath: trimmedComponents forParent: node fileSize: file->length index: i flatList: flatFileList];
1653            }
1654            else
1655            {
1656                FileListNode * node = [[FileListNode alloc] initWithFileName: name path: path size: file->length index: i];
1657                [fileList addObject: node];
1658                [flatFileList addObject: node];
1659                [node release];
1660            }
1661        }
1662       
1663        fFileList = [[NSArray alloc] initWithArray: fileList];
1664        fFlatFileList = [[NSArray alloc] initWithArray: flatFileList];
1665    }
1666    else
1667    {
1668        FileListNode * node = [[FileListNode alloc] initWithFileName: [self name] path: @"" size: [self size] index: 0];
1669        fFileList = [[NSArray arrayWithObject: node] retain];
1670        fFlatFileList = [fFileList retain];
1671        [node release];
1672    }
1673}
1674
1675- (void) insertPath: (NSMutableArray *) components forParent: (FileListNode *) parent fileSize: (uint64_t) size
1676    index: (NSInteger) index flatList: (NSMutableArray *) flatFileList
1677{
1678    NSString * name = [components objectAtIndex: 0];
1679    const BOOL isFolder = [components count] > 1;
1680   
1681    FileListNode * node = nil;
1682    if (isFolder)
1683    {
1684        for (node in [parent children])
1685            if ([[node name] isEqualToString: name] && [node isFolder])
1686                break;
1687    }
1688   
1689    //create new folder or file if it doesn't already exist
1690    if (!node)
1691    {
1692        NSString * path = [[parent path] stringByAppendingPathComponent: [parent name]];
1693        if (isFolder)
1694            node = [[FileListNode alloc] initWithFolderName: name path: path];
1695        else
1696        {
1697            node = [[FileListNode alloc] initWithFileName: name path: path size: size index: index];
1698            [flatFileList addObject: node];
1699        }
1700       
1701        [parent insertChild: node];
1702        [node release];
1703    }
1704   
1705    if (isFolder)
1706    {
1707        [node insertIndex: index withSize: size];
1708       
1709        [components removeObjectAtIndex: 0];
1710        [self insertPath: components forParent: node fileSize: size index: index flatList: flatFileList];
1711    }
1712}
1713
1714//status has been retained
1715- (void) completenessChange: (NSNumber *) status
1716{
1717    fStat = tr_torrentStat(fHandle); //don't call update yet to avoid auto-stop
1718   
1719    switch ([status intValue])
1720    {
1721        case TR_SEED:
1722        case TR_PARTIAL_SEED:
1723            [[NSNotificationCenter defaultCenter] postNotificationName: @"TorrentFinishedDownloading" object: self];
1724            break;
1725       
1726        case TR_LEECH:
1727            [[NSNotificationCenter defaultCenter] postNotificationName: @"TorrentRestartedDownloading" object: self];
1728            break;
1729    }
1730    [status release];
1731   
1732    [self update];
1733    [self updateTimeMachineExclude];
1734}
1735
1736- (void) ratioLimitHit
1737{
1738    fStat = tr_torrentStat(fHandle);
1739   
1740    [[NSNotificationCenter defaultCenter] postNotificationName: @"TorrentStoppedForRatio" object: self];
1741   
1742    fFinishedSeeding = YES;
1743}
1744
1745- (void) metadataRetrieved
1746{
1747    fStat = tr_torrentStat(fHandle);
1748   
1749    [self createFileList];
1750   
1751    [[NSNotificationCenter defaultCenter] postNotificationName: @"ResetInspector" object: self];
1752}
1753
1754- (NSString *) etaString
1755{
1756    const NSInteger eta = [self eta];
1757    switch (eta)
1758    {
1759        case TR_ETA_NOT_AVAIL:
1760        case TR_ETA_UNKNOWN:
1761            return NSLocalizedString(@"remaining time unknown", "Torrent -> eta string");
1762        default:
1763            return [NSString stringWithFormat: NSLocalizedString(@"%@ remaining", "Torrent -> eta string"),
1764                        [NSString timeString: eta showSeconds: YES maxFields: 2]];
1765    }
1766}
1767
1768- (void) setTimeMachineExclude: (BOOL) exclude forPath: (NSString *) path
1769{
1770    CSBackupSetItemExcluded((CFURLRef)[NSURL fileURLWithPath: path], exclude, true);
1771}
1772
1773@end
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