transmission/macosx/InfoPeersViewController.mm

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// This file Copyright © 2010-2022 Transmission authors and contributors.
// It may be used under the MIT (SPDX: MIT) license.
// License text can be found in the licenses/ folder.
#include <libtransmission/transmission.h>
#include <libtransmission/utils.h>
#import "InfoPeersViewController.h"
#import "NSStringAdditions.h"
#import "PeerProgressIndicatorCell.h"
#import "Torrent.h"
#import "WebSeedTableView.h"
#import "NSImageAdditions.h"
static NSString* const kAnimationIdKey = @"animationId";
static NSString* const kWebSeedAnimationId = @"webSeed";
@interface InfoPeersViewController ()<CAAnimationDelegate>
@property(nonatomic, copy) NSArray<Torrent*>* fTorrents;
@property(nonatomic) BOOL fSet;
@property(nonatomic) NSMutableArray<NSDictionary*>* fPeers;
@property(nonatomic) NSMutableArray<NSDictionary*>* fWebSeeds;
@property(nonatomic) IBOutlet NSTableView* fPeerTable;
@property(nonatomic) IBOutlet WebSeedTableView* fWebSeedTable;
@property(nonatomic) IBOutlet NSTextField* fConnectedPeersField;
@property(nonatomic) CGFloat fViewTopMargin;
@property(nonatomic) IBOutlet NSLayoutConstraint* fWebSeedTableTopConstraint;
@property(nonatomic, readonly) NSArray<NSSortDescriptor*>* peerSortDescriptors;
@end
@implementation InfoPeersViewController
- (instancetype)init
{
if ((self = [super initWithNibName:@"InfoPeersView" bundle:nil]))
{
self.title = NSLocalizedString(@"Peers", "Inspector view -> title");
}
return self;
}
- (void)awakeFromNib
{
CGFloat const height = [NSUserDefaults.standardUserDefaults floatForKey:@"InspectorContentHeightPeers"];
if (height != 0.0)
{
NSRect viewRect = self.view.frame;
viewRect.size.height = height;
self.view.frame = viewRect;
}
//set table header text
[self.fPeerTable tableColumnWithIdentifier:@"IP"].headerCell.stringValue = NSLocalizedString(@"IP Address", "inspector -> peer table -> header");
[self.fPeerTable tableColumnWithIdentifier:@"Client"].headerCell.stringValue = NSLocalizedString(@"Client", "inspector -> peer table -> header");
[self.fPeerTable tableColumnWithIdentifier:@"DL From"].headerCell.stringValue = NSLocalizedString(@"DL", "inspector -> peer table -> header");
[self.fPeerTable tableColumnWithIdentifier:@"UL To"].headerCell.stringValue = NSLocalizedString(@"UL", "inspector -> peer table -> header");
[self.fWebSeedTable tableColumnWithIdentifier:@"Address"].headerCell.stringValue = NSLocalizedString(@"Web Seeds", "inspector -> web seed table -> header");
[self.fWebSeedTable tableColumnWithIdentifier:@"DL From"].headerCell.stringValue = NSLocalizedString(@"DL", "inspector -> web seed table -> header");
//set table header tool tips
[self.fPeerTable tableColumnWithIdentifier:@"Encryption"].headerToolTip = NSLocalizedString(
@"Encrypted Connection",
"inspector -> peer table -> header tool tip");
[self.fPeerTable tableColumnWithIdentifier:@"Progress"].headerToolTip = NSLocalizedString(@"Available", "inspector -> peer table -> header tool tip");
[self.fPeerTable tableColumnWithIdentifier:@"DL From"].headerToolTip = NSLocalizedString(@"Downloading From Peer", "inspector -> peer table -> header tool tip");
[self.fPeerTable tableColumnWithIdentifier:@"UL To"].headerToolTip = NSLocalizedString(@"Uploading To Peer", "inspector -> peer table -> header tool tip");
[self.fWebSeedTable tableColumnWithIdentifier:@"DL From"].headerToolTip = NSLocalizedString(
@"Downloading From Web Seed",
"inspector -> web seed table -> header tool tip");
//prepare for animating peer table and web seed table
self.fViewTopMargin = self.fWebSeedTableTopConstraint.constant;
CABasicAnimation* webSeedTableAnimation = [CABasicAnimation animation];
webSeedTableAnimation.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionLinear];
webSeedTableAnimation.duration = 0.125;
webSeedTableAnimation.delegate = self;
[webSeedTableAnimation setValue:kWebSeedAnimationId forKey:kAnimationIdKey];
self.fWebSeedTableTopConstraint.animations = @{ @"constant" : webSeedTableAnimation };
[self setWebSeedTableHidden:YES animate:NO];
}
#warning subclass?
- (void)setInfoForTorrents:(NSArray<Torrent*>*)torrents
{
//don't check if it's the same in case the metadata changed
self.fTorrents = torrents;
self.fSet = NO;
}
- (void)updateInfo
{
if (!self.fSet)
{
[self setupInfo];
}
if (self.fTorrents.count == 0)
{
return;
}
if (!self.fPeers)
{
self.fPeers = [[NSMutableArray alloc] init];
}
else
{
[self.fPeers removeAllObjects];
}
if (!self.fWebSeeds)
{
self.fWebSeeds = [[NSMutableArray alloc] init];
}
else
{
[self.fWebSeeds removeAllObjects];
}
NSUInteger connected = 0;
NSUInteger tracker = 0;
NSUInteger incoming = 0;
NSUInteger cache = 0;
NSUInteger lpd = 0;
NSUInteger pex = 0;
NSUInteger dht = 0;
NSUInteger ltep = 0;
NSUInteger toUs = 0;
NSUInteger fromUs = 0;
BOOL anyActive = false;
for (Torrent* torrent in self.fTorrents)
{
if (torrent.webSeedCount > 0)
{
[self.fWebSeeds addObjectsFromArray:torrent.webSeeds];
}
if (torrent.active)
{
anyActive = YES;
[self.fPeers addObjectsFromArray:torrent.peers];
NSUInteger const connectedThis = torrent.totalPeersConnected;
if (connectedThis > 0)
{
connected += torrent.totalPeersConnected;
tracker += torrent.totalPeersTracker;
incoming += torrent.totalPeersIncoming;
cache += torrent.totalPeersCache;
lpd += torrent.totalPeersLocal;
pex += torrent.totalPeersPex;
dht += torrent.totalPeersDHT;
ltep += torrent.totalPeersLTEP;
toUs += torrent.peersSendingToUs;
fromUs += torrent.peersGettingFromUs;
}
}
}
[self.fPeers sortUsingDescriptors:self.peerSortDescriptors];
[self.fPeerTable reloadData];
[self.fWebSeeds sortUsingDescriptors:self.fWebSeedTable.sortDescriptors];
[self.fWebSeedTable reloadData];
self.fWebSeedTable.webSeeds = self.fWebSeeds;
if (anyActive)
{
NSString* connectedText;
if (connected == 1)
{
connectedText = NSLocalizedString(@"1 Connected", "Inspector -> Peers tab -> peers");
}
else
{
connectedText = [NSString
localizedStringWithFormat:NSLocalizedString(@"%lu Connected", "Inspector -> Peers tab -> peers"), connected];
}
if (connected > 0)
{
NSMutableArray* upDownComponents = [NSMutableArray arrayWithCapacity:2];
if (toUs > 0)
{
[upDownComponents
addObject:[NSString localizedStringWithFormat:NSLocalizedString(@"DL from %lu", "Inspector -> Peers tab -> peers"), toUs]];
}
if (fromUs > 0)
{
[upDownComponents
addObject:[NSString localizedStringWithFormat:NSLocalizedString(@"UL to %lu", "Inspector -> Peers tab -> peers"), fromUs]];
}
if (upDownComponents.count > 0)
{
connectedText = [connectedText stringByAppendingFormat:@": %@", [upDownComponents componentsJoinedByString:@", "]];
}
NSMutableArray* fromComponents = [NSMutableArray arrayWithCapacity:7];
if (tracker > 0)
{
[fromComponents addObject:[NSString localizedStringWithFormat:NSLocalizedString(@"%lu tracker", "Inspector -> Peers tab -> peers"),
tracker]];
}
if (incoming > 0)
{
[fromComponents addObject:[NSString localizedStringWithFormat:NSLocalizedString(@"%lu incoming", "Inspector -> Peers tab -> peers"),
incoming]];
}
if (cache > 0)
{
[fromComponents
addObject:[NSString localizedStringWithFormat:NSLocalizedString(@"%lu cache", "Inspector -> Peers tab -> peers"), cache]];
}
if (lpd > 0)
{
[fromComponents addObject:[NSString localizedStringWithFormat:NSLocalizedString(@"%lu local discovery", "Inspector -> Peers tab -> peers"),
lpd]];
}
if (pex > 0)
{
[fromComponents
addObject:[NSString localizedStringWithFormat:NSLocalizedString(@"%lu PEX", "Inspector -> Peers tab -> peers"), pex]];
}
if (dht > 0)
{
[fromComponents
addObject:[NSString localizedStringWithFormat:NSLocalizedString(@"%lu DHT", "Inspector -> Peers tab -> peers"), dht]];
}
if (ltep > 0)
{
[fromComponents
addObject:[NSString localizedStringWithFormat:NSLocalizedString(@"%lu LTEP", "Inspector -> Peers tab -> peers"), ltep]];
}
connectedText = [connectedText stringByAppendingFormat:@"\n%@", [fromComponents componentsJoinedByString:@", "]];
}
self.fConnectedPeersField.stringValue = connectedText;
}
else
{
NSString* notActiveString;
if (self.fTorrents.count == 1)
{
notActiveString = NSLocalizedString(@"Transfer Not Active", "Inspector -> Peers tab -> peers");
}
else
{
notActiveString = NSLocalizedString(@"Transfers Not Active", "Inspector -> Peers tab -> peers");
}
self.fConnectedPeersField.stringValue = notActiveString;
}
}
- (void)saveViewSize
{
[NSUserDefaults.standardUserDefaults setFloat:NSHeight(self.view.frame) forKey:@"InspectorContentHeightPeers"];
}
- (void)clearView
{
self.fPeers = nil;
self.fWebSeeds = nil;
}
- (NSInteger)numberOfRowsInTableView:(NSTableView*)tableView
{
if (tableView == self.fWebSeedTable)
{
return self.fWebSeeds ? self.fWebSeeds.count : 0;
}
else
{
return self.fPeers ? self.fPeers.count : 0;
}
}
- (id)tableView:(NSTableView*)tableView objectValueForTableColumn:(NSTableColumn*)column row:(NSInteger)row
{
if (tableView == self.fWebSeedTable)
{
NSString* ident = column.identifier;
NSDictionary* webSeed = self.fWebSeeds[row];
if ([ident isEqualToString:@"DL From"])
{
NSNumber* rate;
return (rate = webSeed[@"DL From Rate"]) ? [NSString stringForSpeedAbbrev:rate.doubleValue] : @"";
}
else
{
return webSeed[@"Address"];
}
}
else
{
NSString* ident = column.identifier;
NSDictionary* peer = self.fPeers[row];
if ([ident isEqualToString:@"Encryption"])
{
return [peer[@"Encryption"] boolValue] ? [NSImage systemSymbol:@"lock.fill" withFallback:@"Lock"] : nil;
}
else if ([ident isEqualToString:@"Client"])
{
return peer[@"Client"];
}
else if ([ident isEqualToString:@"Progress"])
{
return peer[@"Progress"];
}
else if ([ident isEqualToString:@"UL To"])
{
NSNumber* rate;
return (rate = peer[@"UL To Rate"]) ? [NSString stringForSpeedAbbrev:rate.doubleValue] : @"";
}
else if ([ident isEqualToString:@"DL From"])
{
NSNumber* rate;
return (rate = peer[@"DL From Rate"]) ? [NSString stringForSpeedAbbrev:rate.doubleValue] : @"";
}
else
{
return peer[@"IP"];
}
}
}
- (void)tableView:(NSTableView*)tableView willDisplayCell:(id)cell forTableColumn:(NSTableColumn*)tableColumn row:(NSInteger)row
{
if (tableView == self.fPeerTable)
{
NSString* ident = tableColumn.identifier;
if ([ident isEqualToString:@"Progress"])
{
NSDictionary* peer = self.fPeers[row];
((PeerProgressIndicatorCell*)cell).seed = [peer[@"Seed"] boolValue];
}
}
}
- (void)tableView:(NSTableView*)tableView didClickTableColumn:(NSTableColumn*)tableColumn
{
if (tableView == self.fWebSeedTable)
{
if (self.fWebSeeds)
{
[self.fWebSeeds sortUsingDescriptors:self.fWebSeedTable.sortDescriptors];
[tableView reloadData];
}
}
else
{
if (self.fPeers)
{
[self.fPeers sortUsingDescriptors:self.peerSortDescriptors];
[tableView reloadData];
}
}
}
- (BOOL)tableView:(NSTableView*)tableView shouldSelectRow:(NSInteger)row
{
return tableView != self.fPeerTable;
}
- (NSString*)tableView:(NSTableView*)tableView
toolTipForCell:(NSCell*)cell
rect:(NSRectPointer)rect
tableColumn:(NSTableColumn*)column
row:(NSInteger)row
mouseLocation:(NSPoint)mouseLocation
{
if (tableView == self.fPeerTable)
{
BOOL const multiple = self.fTorrents.count > 1;
NSDictionary* peer = self.fPeers[row];
NSMutableArray* components = [NSMutableArray arrayWithCapacity:multiple ? 6 : 5];
if (multiple)
{
[components addObject:peer[@"Name"]];
}
CGFloat const progress = [peer[@"Progress"] floatValue];
NSString* progressString = [NSString stringWithFormat:NSLocalizedString(@"Progress: %@", "Inspector -> Peers tab -> table row tooltip"),
[NSString percentString:progress longDecimals:NO]];
if (progress < 1.0 && [peer[@"Seed"] boolValue])
{
progressString = [progressString
stringByAppendingFormat:@" (%@)", NSLocalizedString(@"Partial Seed", "Inspector -> Peers tab -> table row tooltip")];
}
[components addObject:progressString];
NSString* protocolString = [peer[@"uTP"] boolValue] ? @"\u00b5TP" : @"TCP";
if ([peer[@"Encryption"] boolValue])
{
protocolString = [protocolString
stringByAppendingFormat:@" (%@)", NSLocalizedString(@"encrypted", "Inspector -> Peers tab -> table row tooltip")];
}
[components addObject:[NSString stringWithFormat:NSLocalizedString(@"Protocol: %@", "Inspector -> Peers tab -> table row tooltip"),
protocolString]];
NSString* portString;
NSInteger port;
if ((port = [peer[@"Port"] intValue]) > 0)
{
portString = [NSString stringWithFormat:@"%ld", port];
}
else
{
portString = NSLocalizedString(@"N/A", "Inspector -> Peers tab -> table row tooltip");
}
[components addObject:[NSString stringWithFormat:@"%@: %@",
NSLocalizedString(@"Port", "Inspector -> Peers tab -> table row tooltip"),
portString]];
NSInteger const peerFrom = [peer[@"From"] integerValue];
switch (peerFrom)
{
case TR_PEER_FROM_TRACKER:
[components addObject:NSLocalizedString(@"From: tracker", "Inspector -> Peers tab -> table row tooltip")];
break;
case TR_PEER_FROM_INCOMING:
[components addObject:NSLocalizedString(@"From: incoming connection", "Inspector -> Peers tab -> table row tooltip")];
break;
case TR_PEER_FROM_RESUME:
[components addObject:NSLocalizedString(@"From: cache", "Inspector -> Peers tab -> table row tooltip")];
break;
case TR_PEER_FROM_LPD:
[components addObject:NSLocalizedString(@"From: local peer discovery", "Inspector -> Peers tab -> table row tooltip")];
break;
case TR_PEER_FROM_PEX:
[components addObject:NSLocalizedString(@"From: peer exchange", "Inspector -> Peers tab -> table row tooltip")];
break;
case TR_PEER_FROM_DHT:
[components addObject:NSLocalizedString(@"From: distributed hash table", "Inspector -> Peers tab -> table row tooltip")];
break;
case TR_PEER_FROM_LTEP:
[components addObject:NSLocalizedString(@"From: libtorrent extension protocol handshake", "Inspector -> Peers tab -> table row tooltip")];
break;
default:
NSAssert1(NO, @"Peer from unknown source: %ld", peerFrom);
}
//determine status strings from flags
NSMutableArray* statusArray = [NSMutableArray arrayWithCapacity:6];
NSString* flags = peer[@"Flags"];
if ([flags rangeOfString:@"D"].location != NSNotFound)
{
[statusArray addObject:NSLocalizedString(@"Currently downloading (interested and not choked)", "Inspector -> peer -> status")];
}
if ([flags rangeOfString:@"d"].location != NSNotFound)
{
[statusArray addObject:NSLocalizedString(
@"You want to download, but peer does not want to send (interested and choked)",
"Inspector -> peer -> status")];
}
if ([flags rangeOfString:@"U"].location != NSNotFound)
{
[statusArray addObject:NSLocalizedString(@"Currently uploading (interested and not choked)", "Inspector -> peer -> status")];
}
if ([flags rangeOfString:@"u"].location != NSNotFound)
{
[statusArray addObject:NSLocalizedString(@"Peer wants you to upload, but you do not want to (interested and choked)", "Inspector -> peer -> status")];
}
if ([flags rangeOfString:@"K"].location != NSNotFound)
{
[statusArray addObject:NSLocalizedString(@"Peer is unchoking you, but you are not interested", "Inspector -> peer -> status")];
}
if ([flags rangeOfString:@"?"].location != NSNotFound)
{
[statusArray addObject:NSLocalizedString(@"You unchoked the peer, but the peer is not interested", "Inspector -> peer -> status")];
}
if (statusArray.count > 0)
{
NSString* statusStrings = [statusArray componentsJoinedByString:@"\n\n"];
[components addObject:[@"\n" stringByAppendingString:statusStrings]];
}
return [components componentsJoinedByString:@"\n"];
}
else
{
if (self.fTorrents.count > 1)
{
return self.fWebSeeds[row][@"Name"];
}
}
return nil;
}
- (void)animationDidStart:(CAAnimation*)animation
{
if (![[animation valueForKey:kAnimationIdKey] isEqualToString:kWebSeedAnimationId])
{
return;
}
self.fWebSeedTable.enclosingScrollView.hidden = NO;
}
- (void)animationDidStop:(CAAnimation*)animation finished:(BOOL)finished
{
if (![[animation valueForKey:kAnimationIdKey] isEqualToString:kWebSeedAnimationId])
{
return;
}
self.fWebSeedTable.enclosingScrollView.hidden = finished && self.fWebSeedTableTopConstraint.constant < 0;
}
#pragma mark - Private
- (void)setupInfo
{
__block BOOL hasWebSeeds = NO;
if (self.fTorrents.count == 0)
{
self.fPeers = nil;
[self.fPeerTable reloadData];
self.fConnectedPeersField.stringValue = @"";
}
else
{
[self.fTorrents enumerateObjectsWithOptions:NSEnumerationConcurrent usingBlock:^(Torrent* torrent, NSUInteger idx, BOOL* stop) {
if (torrent.webSeedCount > 0)
{
hasWebSeeds = YES;
*stop = YES;
}
}];
}
if (!hasWebSeeds)
{
self.fWebSeeds = nil;
[self.fWebSeedTable reloadData];
}
else
{
[self.fWebSeedTable deselectAll:self];
}
[self setWebSeedTableHidden:!hasWebSeeds animate:YES];
self.fSet = YES;
}
- (void)setWebSeedTableHidden:(BOOL)hide animate:(BOOL)animate
{
if (animate && (!self.view.window || !self.view.window.visible))
{
animate = NO;
}
CGFloat const webSeedTableTopMargin = hide ? -NSHeight(self.fWebSeedTable.enclosingScrollView.frame) : self.fViewTopMargin;
(animate ? [self.fWebSeedTableTopConstraint animator] : self.fWebSeedTableTopConstraint).constant = webSeedTableTopMargin;
}
- (NSArray<NSSortDescriptor*>*)peerSortDescriptors
{
NSMutableArray* descriptors = [NSMutableArray arrayWithCapacity:2];
NSArray* oldDescriptors = self.fPeerTable.sortDescriptors;
BOOL useSecond = YES, asc = YES;
if (oldDescriptors.count > 0)
{
NSSortDescriptor* descriptor = oldDescriptors[0];
[descriptors addObject:descriptor];
if ((useSecond = ![descriptor.key isEqualToString:@"IP"]))
{
asc = descriptor.ascending;
}
}
//sort by IP after primary sort
if (useSecond)
{
NSSortDescriptor* secondDescriptor = [NSSortDescriptor sortDescriptorWithKey:@"IP" ascending:asc
selector:@selector(compareNumeric:)];
[descriptors addObject:secondDescriptor];
}
return descriptors;
}
@end