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TPTrackerKeyboard.m
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TPTrackerKeyboard.m
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//
// TPTrackerKeyboard.m
// Telepath
//
// Created by Nick Winter on 8/31/13.
// Copyright (c) 2013 Nick Winter. All rights reserved.
//
#import "TPTrackerKeyboard.h"
#import "TPUtilities.h"
#import "TPTracker.h"
#include <ApplicationServices/ApplicationServices.h>
@interface TPTrackerKeyboard ()
@property NSMutableString *recentCharacters;
@property NSArray *reallyBadStuff;
@property NSArray *punctuation;
@property NSMutableString *veryBad;
@property id eventMonitor;
@property uint previousEvents;
@property (readwrite) uint totalEvents;
@end
// TODO: Look at how Selfspy does it, since it probably handles all the modifier flags and special keys and such better.
@implementation TPTrackerKeyboard
- (id)init
{
self = [super init];
if (self) {
self.recentCharacters = [NSMutableString new];
[self loadModifierKeys];
[self loadReallyBadStuff];
NSDictionary *options = @{(__bridge id)kAXTrustedCheckOptionPrompt: @YES};
BOOL accessibilityEnabled = AXIsProcessTrustedWithOptions((__bridge CFDictionaryRef)options);
NSLog(@"Accessibility is enabled? %d", accessibilityEnabled);
uint logMask = (NSKeyDownMask|NSKeyUpMask|NSFlagsChangedMask);
self.eventMonitor = [NSEvent addGlobalMonitorForEventsMatchingMask:logMask handler:^(NSEvent *e) { [self onInputEvent:e]; }];
self.previousEvents = [[NSUserDefaults standardUserDefaults] integerForKey:@"previousKeyboardEvents"];
self.totalEvents = [[NSUserDefaults standardUserDefaults] integerForKey:@"totalKeyboardEvents"];
[[NSNotificationCenter defaultCenter] addObserverForName:TPActivityClearTotals object:nil queue:nil usingBlock:^(NSNotification *note) {
[[NSUserDefaults standardUserDefaults] setObject:@(self.totalEvents) forKey:@"previousKeyboardEvents"];
self.previousEvents = self.totalEvents;
}];
}
return self;
}
- (uint)currentEvents {
return self.totalEvents - self.previousEvents;
}
- (void)dealloc
{
[[NSNotificationCenter defaultCenter] removeObserver:self];
}
- (void)loadReallyBadStuff {
// Reading list of terrible words, upon typing of which we shall beep castigatorally!
NSString *filepath = [@"~/Dropbox/code/really_bad_stuff.txt" stringByExpandingTildeInPath];
NSString *contents = [NSString stringWithContentsOfFile:filepath encoding:NSUTF8StringEncoding error:nil];
self.reallyBadStuff = [[contents stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]] componentsSeparatedByString:@"\n"];
self.punctuation = @[@" ", @",", @".", @";", @"?", @"!", @"'", @"\"", @"-", @"/", @"(", @")", @"[", @"]", @"\n"];
self.veryBad = [NSMutableString string];
for(uint i = 0; i < [[self.reallyBadStuff lastObject] length]; ++i)
[self.veryBad appendFormat:@"%C", (unichar)([[self.reallyBadStuff lastObject] characterAtIndex:i] - 1)];
}
- (void)loadModifierKeys {
// http://blog.elliottcable.name/posts/useful_unicode.xhtml
self.modifierKeys =
@[[NSMutableArray arrayWithObjects:@"⇪", @(NSAlphaShiftKeyMask), @(NO), nil],
[NSMutableArray arrayWithObjects:@"⇧", @(NSShiftKeyMask), @(NO), nil],
[NSMutableArray arrayWithObjects:@"⌃", @(NSControlKeyMask), @(NO), nil],
[NSMutableArray arrayWithObjects:@"⌥", @(NSAlternateKeyMask), @(NO), nil],
[NSMutableArray arrayWithObjects:@"⌘", @(NSCommandKeyMask), @(NO), nil],
[NSMutableArray arrayWithObjects:@"<numlock>", @(NSNumericPadKeyMask), @(NO), nil],
[NSMutableArray arrayWithObjects:@"<help>", @(NSHelpKeyMask), @(NO), nil],
[NSMutableArray arrayWithObjects:@"<fn>", @(NSFunctionKeyMask), @(NO), nil],
];
}
- (void)checkReallyBadStuff {
if(!self.reallyBadStuff) return;
// Warn the user if she types despicable words
for(NSString *thing in self.reallyBadStuff)
for(NSString *punct in self.punctuation) {
if([thing length] && [self.recentCharacters rangeOfString:[NSString stringWithFormat:@"%@%@", thing, punct] options:NSCaseInsensitiveSearch].location != NSNotFound) {
NSLog(@"You shouldn't use %@!", thing);
[self.recentCharacters deleteCharactersInRange:NSMakeRange(0, [self.recentCharacters length])];
NSBeep();
}
}
if([self.recentCharacters rangeOfString:self.veryBad].location != NSNotFound) {
[self.recentCharacters deleteCharactersInRange:NSMakeRange(0, [self.recentCharacters length])];
[[NSNotificationCenter defaultCenter] postNotificationName:TPActivityKeyboardVeryBad object:self userInfo:@{@"badLength": @([self.veryBad length])}];
}
}
- (void)onInputEvent:(NSEvent *)e {
NSEventType t = [e type];
if (t == NSKeyDown)
[self onKeyEvent:e up:NO];
else if(t == NSKeyUp)
[self onKeyEvent:e up:YES];
else if(t == NSFlagsChanged)
[self onFlagsChangedEvent:e];
}
- (void)onKeyEvent:(NSEvent *)e up:(BOOL)keyUp {
NSMutableArray *event = [NSMutableArray array];
[event addObject:@(now())];
if(keyUp)
[event addObject:@"keyUp"];
else
[event addObject:@"keyDown"];
BOOL isText = NO;
int code = [e keyCode];
if(code == 36)
[event addObject:@"↩"];
else if (code == 48)
[event addObject:@"⇥"];
else if (code == 49)
[event addObject:@" "];
else if (code == 51)
[event addObject:@"⌫"];
else if (code == 53)
[event addObject:@"␛"];
else if (code == 123)
[event addObject:@"←"];
else if (code == 124)
[event addObject:@"→"];
else if (code == 125)
[event addObject:@"↓"];
else if (code == 126)
[event addObject:@"↑"];
else {
[event addObject:[e characters]];
isText = YES;
}
[[NSNotificationCenter defaultCenter] postNotificationName:TPActivityKeyboard object:self userInfo:@{@"event": event, @"totalEvents": @(++self.totalEvents), @"currentEvents": @(self.currentEvents), @"isText": @(isText)}];
[[NSUserDefaults standardUserDefaults] setObject:@(self.totalEvents) forKey:@"totalKeyboardEvents"];
if(keyUp) {
[self.recentCharacters appendString:[e characters]];
if([self.recentCharacters length] > 100)
[self.recentCharacters deleteCharactersInRange:NSMakeRange(0, 1)];
[self checkReallyBadStuff];
}
}
- (void)onFlagsChangedEvent:(NSEvent *)e {
NSMutableArray *event = [NSMutableArray array];
[event addObject:@(now())];
unsigned long flags = [e modifierFlags];
for(NSMutableArray *modifierKey in self.modifierKeys) {
BOOL oldState = !![[modifierKey objectAtIndex:2] boolValue];
BOOL newState = !!(flags & [[modifierKey objectAtIndex:1] unsignedIntValue]);
//NSLog(@"modifierKey: %@, oldState: %d, newState: %d", modifierKey, oldState, newState);
if(oldState == newState) continue;
[modifierKey replaceObjectAtIndex:2 withObject:[NSNumber numberWithBool:newState]];
[event addObject:newState ? @"keyDown" : @"keyUp"];
[event addObject:[modifierKey objectAtIndex:0]];
break;
}
if([event count] == 1)
;//NSLog(@"Hmm; modifier flags changed, but we didn't match any of the flags...? %d", flags); // happens with left/right mods
else
[[NSNotificationCenter defaultCenter] postNotificationName:TPActivityKeyboard object:self userInfo:@{@"event": event, @"totalEvents": @(++self.totalEvents), @"currentEvents": @(self.currentEvents), @"isText": @(NO)}];
/*
Later we could make this fancier to get left/right modifier keys by using this:
(Found from Googling at http://www.libsdl.org/tmp/SDL/src/video/cocoa/SDL_cocoakeyboard.m )
#ifndef NX_DEVICERCTLKEYMASK
#define NX_DEVICELCTLKEYMASK 0x00000001
#endif
#ifndef NX_DEVICELSHIFTKEYMASK
#define NX_DEVICELSHIFTKEYMASK 0x00000002
#endif
#ifndef NX_DEVICERSHIFTKEYMASK
#define NX_DEVICERSHIFTKEYMASK 0x00000004
#endif
#ifndef NX_DEVICELCMDKEYMASK
#define NX_DEVICELCMDKEYMASK 0x00000008
#endif
#ifndef NX_DEVICERCMDKEYMASK
#define NX_DEVICERCMDKEYMASK 0x00000010
#endif
#ifndef NX_DEVICELALTKEYMASK
#define NX_DEVICELALTKEYMASK 0x00000020
#endif
#ifndef NX_DEVICERALTKEYMASK
#define NX_DEVICERALTKEYMASK 0x00000040
#endif
#ifndef NX_DEVICERCTLKEYMASK
#define NX_DEVICERCTLKEYMASK 0x00002000
#endif
*/
}
@end