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559 lines (476 loc) · 19.3 KBRaw123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530531532533534535536537538539540541542543544545546547548549550551552553554555556557558559//// TigerExtensions.m// OSXvnc//// Created by Jonathan Gillaspie on Fri Jul 11 2003.// Copyright (c) 2003 RedstoneSoftware, Inc. All rights reserved. #import "JaguarExtensions.h"#import "TigerExtensions.h" #import <ApplicationServices/ApplicationServices.h>#import <Cocoa/Cocoa.h>#import <Carbon/Carbon.h> #import <Security/AuthSession.h> #include "keysymdef.h"#include "kbdptr.h" #include "rfb.h" #include "rfbserver.h"#import "VNCServer.h" #import "../RFBBundleProtocol.h" static BOOL readyToStartup = TRUE;static BOOL dynamicKeyboard = FALSE;static CGEventSourceRef vncSourceRef=NULL;static CGEventTapLocation vncTapLocation=0; static TISInputSourceRef unicodeInputSource=NULL;static TISInputSourceRef currentInputSource=NULL; // Current Modifiers reflect the "global" state of the modifier keys (not a particular VNC connection)// This only matters for event taps. Ideally we could detect their values but// that seems to require an active event loop.static CGEventFlags currentModifiers; // These correspond to the keycodes of the keys 0-9,A-Fstatic unsigned char unicodeNumbersToKeyCodes[16] = { 29, 18, 19, 20, 21, 23, 22, 26, 28, 25, 0, 11, 8, 2, 14, 3 }; #ifndef NSAppKitVersionNumber10_3#define NSAppKitVersionNumber10_3 743#endif#ifndef NSAppKitVersionNumber10_4#define NSAppKitVersionNumber10_4 824#endif @implementation TigerExtensions void SyncSetKeyboardLayout (TISInputSourceRef inputSource); bool isConsoleSession(); // The Keycodes to various modifiers on the current keyboardCGKeyCode keyCodeShift;CGKeyCode keyCodeOption;CGKeyCode keyCodeControl;CGKeyCode keyCodeCommand; int modifierDelay = 0; rfbserver *theServer; // This routine waits for the window server to register its per-session // services in our session. This code was necessary in various pre-release // versions of Mac OS X 10.5, but it is not necessary on the final version. static void WaitForWindowServerSession(void) { CFDictionaryRef dict; int delay = 100000, maxDelay = 5000000; dict = CGSessionCopyCurrentDictionary(); while (dict == NULL && maxDelay > 0) { usleep(delay); maxDelay -= delay; dict = CGSessionCopyCurrentDictionary(); } if (maxDelay <= 0) NSLog(@"No CG session Available, max delay reached"); if (dict != NULL) CFRelease(dict);} bool isConsoleSession() { BOOL returnValue = FALSE; CFDictionaryRef sessionInfoDict = CGSessionCopyCurrentDictionary(); if (sessionInfoDict == NULL) NSLog(@"Unable to get session dictionary."); else { CFBooleanRef userIsActive = CFDictionaryGetValue(sessionInfoDict, kCGSessionOnConsoleKey); returnValue = CFBooleanGetValue(userIsActive); CFRelease(sessionInfoDict); } // if (0) { // // This one succeeds in "off-screen acounts" also// SecuritySessionId mySession;// SessionAttributeBits sessionInfo;// OSStatus error = SessionGetInfo(callerSecuritySession, &mySession, &sessionInfo);// // returnValue = (sessionInfo & sessionHasGraphicAccess);// }// else if (0) {// // There must be a better way but for now this seems to indicate if we are a console session or not// // at least for logged in users -- it always returns NO for the login window// CGEventSourceRef testRef = CGEventSourceCreate(kCGEventSourceStatePrivate);// int pollDelay = 0; // No poll at this time, just look once// // while (!testRef && pollDelay) {// usleep(100000);// pollDelay -= 100000;// testRef = CGEventSourceCreate(kCGEventSourceStatePrivate);// }// // if (testRef != NULL) {// returnValue = TRUE;// CFRelease(testRef);// }// } return returnValue;} + (void) load { if (NSAppKitVersionNumber < NSAppKitVersionNumber10_4) { [NSException raise:@"Tiger (10.4) Required" format:@"Unable to load Tiger Bundle"]; }} + (void) rfbStartup: (rfbserver *) aServer { [[NSUserDefaults standardUserDefaults] registerDefaults:[NSDictionary dictionaryWithObjectsAndKeys: @"NO", @"UnicodeKeyboard", // Load The Unicode Keyboard @"NO", @"DynamicKeyboard", // Try to set the keyboard "as we need it", doesn't work well on Tiger @"-1", @"UnicodeKeyboardIdentifier", // ID of the Unicode Keyboard resource to use (-1 is Apple's) @"2", @"EventSource", // Always private event source so we don't consolidate with existing keys (however HID for the EventTap always does anyhow) @"3", @"EventTap", // Default Event Tap (3=HID for Console User and Session For OffScreen Users) @"5000", @"ModifierDelay", // Delay when shifting modifier keys @"NO", @"SystemServer", nil]]; theServer = aServer; *(id *)(theServer->alternateKeyboardHandler) = [[self alloc] init]; // 10.5 System Server special behavior if (floor(NSAppKitVersionNumber) > floor(NSAppKitVersionNumber10_4) && [[NSUserDefaults standardUserDefaults] boolForKey:@"SystemServer"]) { // On 10.5 we need quit if the user switches out (so we can relinquish the port) if (isConsoleSession()) { [[[NSWorkspace sharedWorkspace] notificationCenter] addObserver:self selector:@selector(systemServerShouldQuit:) name: NSWorkspaceSessionDidResignActiveNotification object:nil]; } // On 10.5 we need to be able to "hold" if we aren't the console session else { [[[NSWorkspace sharedWorkspace] notificationCenter] addObserver:self selector:@selector(systemServerShouldContinue:) name: NSWorkspaceSessionDidBecomeActiveNotification object:nil]; readyToStartup = NO; // Run Loop NSLog(@"System Server for non-console session, pausing until we receive console access"); while (!readyToStartup) { OSStatus resultCode = RunCurrentEventLoop(kEventDurationSecond); //EventTimeout if (resultCode != eventLoopTimedOutErr) { NSLog(@"Received Result: %d during event loop, Shutting Down", resultCode); //rfbShutdown(); exit(0); } } } } modifierDelay = [[NSUserDefaults standardUserDefaults] integerForKey:@"ModifierDelay"]; [self loadUnicodeKeyboard];} + (void) systemServerShouldQuit: (NSNotification *) aNotification { NSLog(@"User Switched Out, Stopping System Server - %@", [aNotification name]); //rfbShutdown(); exit(0); return;}+ (void) systemServerShouldContinue: (NSNotification *) aNotification { NSLog(@"User Switched In, Starting System Server - %@", [aNotification name]); readyToStartup = YES; return;} + (void) rfbRunning { if ([[NSUserDefaults standardUserDefaults] boolForKey:@"DynamicKeyboard"]) dynamicKeyboard = TRUE; // Event Source represents which existing event states should be combined with the incoming events switch ([[NSUserDefaults standardUserDefaults] integerForKey:@"EventSource"]) { case 2: // Doesn't combine with any other sources NSLog(@"Using Private Event Source"); vncSourceRef = CGEventSourceCreate(kCGEventSourceStatePrivate); break; case 1: // Combines with only with other User Session NSLog(@"Using Combined Event Source, WARNING: Doesn't work if we FUS off-screen (10.5.1)"); vncSourceRef = CGEventSourceCreate(kCGEventSourceStateCombinedSessionState); break; case 0: // Combines with Physical Keyboard NSLog(@"Using HID Event Source, WARNING: Doesn't allow keys if we FUS off-screen (10.5.7)"); vncSourceRef = CGEventSourceCreate(kCGEventSourceStateHIDSystemState); break; case 3: // I am pretty sure works similar to the HID default: vncSourceRef = NULL; break; } if (!vncSourceRef) NSLog(@"No Event Source -- Using 10.3 API"); // Event Taps represent at what level of the input manager the events will be interpretted switch ([[NSUserDefaults standardUserDefaults] integerForKey:@"EventTap"]) { case 3: { if (isConsoleSession()) { NSLog(@"Using Smart Event Tap -- HID for console user"); vncTapLocation = kCGHIDEventTap; } else { NSLog(@"Using Smart Event Tap -- Session for off-screen user"); vncTapLocation = kCGSessionEventTap; } [[[NSWorkspace sharedWorkspace] notificationCenter] addObserver:self selector:@selector(userSwitchedIn:) name: NSWorkspaceSessionDidBecomeActiveNotification object:nil]; [[[NSWorkspace sharedWorkspace] notificationCenter] addObserver:self selector:@selector(userSwitchedOut:) name: NSWorkspaceSessionDidResignActiveNotification object:nil]; break; } case 2: NSLog(@"Using Annotated Session Event Tap"); vncTapLocation = kCGAnnotatedSessionEventTap; break; case 1: // At this level will can passed in modifiers // it will ignore physical keyboard state // it will NOT impact physical keyboard state NSLog(@"Using Session Event Tap"); vncTapLocation = kCGSessionEventTap; break; case 0: default: // At this level will ignore passed in modifiers // it will combine with the physical keyboard state (CapsLock, etc) // it WILL impact physical keyboard state NSLog(@"Using HID Event Tap"); vncTapLocation = kCGHIDEventTap; break; }} + (void) loadUnicodeKeyboard { if ([[NSUserDefaults standardUserDefaults] boolForKey:@"UnicodeKeyboard"] && unicodeInputSource == NULL) { // Need to figure out a way to lookup the Unicode Keyboard before this will work // OSStatus result = KLGetKeyboardLayoutWithIdentifier([[NSUserDefaults standardUserDefaults] integerForKey:@"UnicodeKeyboardIdentifier"], &unicodeLayout); // Unicode Keyboard Should load keys from definition (*(theServer->pressModsForKeys) = YES); [self loadKeyboard:unicodeInputSource forServer:theServer]; } } + (void) userSwitchedIn: (NSNotification *) aNotification { NSLog(@"User Switched In, Using HID Tap - %@", [aNotification name]); vncTapLocation = kCGHIDEventTap; return;}+ (void) userSwitchedOut: (NSNotification *) aNotification { NSLog(@"User Switched Out, Using Session Tap - %@", [aNotification name]); vncTapLocation = kCGSessionEventTap; return;} + (void) rfbConnect { if (unicodeInputSource != NULL && !dynamicKeyboard) { currentInputSource = TISCopyCurrentKeyboardInputSource(); // Switch to Unicode Keyboard SyncSetKeyboardLayout(unicodeInputSource); }} + (void) rfbDisconnect { if (unicodeInputSource != NULL && !dynamicKeyboard) { // Switch to Old Keyboard SyncSetKeyboardLayout(currentInputSource); }} + (void) rfbUsage { fprintf(stderr, "\nTiger BUNDLE OPTIONS (10.4+):\n" );} + (void) rfbPoll { if (0 && vncTapLocation == kCGHIDEventTap) { CGEventFlags newModifiers = 0; if (CGEventSourceKeyState(kCGEventSourceStateHIDSystemState,keyCodeShift)) newModifiers |= kCGEventFlagMaskShift; if (CGEventSourceKeyState(kCGEventSourceStateHIDSystemState,keyCodeOption)) newModifiers |= kCGEventFlagMaskAlternate; if (CGEventSourceKeyState(kCGEventSourceStateHIDSystemState,keyCodeControl)) newModifiers |= kCGEventFlagMaskControl; if (CGEventSourceKeyState(kCGEventSourceStateHIDSystemState,keyCodeCommand)) newModifiers |= kCGEventFlagMaskControl; currentModifiers = newModifiers; } return;} + (void) rfbReceivedClientMessage { return;} + (void) rfbShutdown { NSLog(@"Unloading Tiger Extensions");} // Keyboard handling code- (void) handleKeyboard:(Bool) down forSym: (KeySym) keySym forClient: (rfbClientPtr) cl { CGKeyCode keyCode = theServer->keyTable[(unsigned short)keySym]; CGEventFlags modifiersToSend = 0; if (1) { // Find the right keycodes base on the loaded keyboard keyCodeShift = theServer->keyTable[XK_Shift_L]; keyCodeOption = theServer->keyTable[XK_Meta_L]; keyCodeControl = theServer->keyTable[XK_Control_L]; keyCodeCommand = theServer->keyTable[XK_Alt_L]; } // If we can't locate the keycode then we will use the special OPTION+4 HEX coding that is available on the Unicode HexInput Keyboard if (keyCode == 0xFFFF) { if (down && unicodeInputSource != NULL) { CGKeyCode keyCodeMeta = 58; // KeyCode for the Option key with the Unicode Hex input keyboard unsigned short mask=0xF000; int rightShift; CGEventFlags oldModifiers = currentModifiers; // Switch to Unicode Keyboard if (dynamicKeyboard) { currentInputSource = TISCopyCurrentKeyboardInputSource(); SyncSetKeyboardLayout(unicodeInputSource); } modifiersToSend = kCGEventFlagMaskAlternate | kCGEventFlagMaskNonCoalesced; [self setKeyModifiers: modifiersToSend]; for (rightShift = 12; rightShift >= 0; rightShift-=4) { short unidigit = (keySym & mask) >> rightShift; [self sendKeyEvent:unicodeNumbersToKeyCodes[unidigit] down:1 modifiers:modifiersToSend]; [self sendKeyEvent:unicodeNumbersToKeyCodes[unidigit] down:0 modifiers:modifiersToSend]; mask >>= 4; } [self setKeyModifiers: oldModifiers]; // Switch to Old Keyboard if (dynamicKeyboard) SyncSetKeyboardLayout(currentInputSource); } } else { BOOL isModifierKey = (XK_Shift_L <= keySym && keySym <= XK_Hyper_R); if (isModifierKey) { // Mark the key state for the client, we'll release down keys later cl->modiferKeys[keyCode] = down; // Record them in our "currentModifiers" switch (keySym) { case XK_Shift_L: case XK_Shift_R: if (down) currentModifiers |= kCGEventFlagMaskShift; else currentModifiers &= ~kCGEventFlagMaskShift; break; case XK_Control_L: case XK_Control_R: if (down) currentModifiers |= kCGEventFlagMaskControl; else currentModifiers &= ~kCGEventFlagMaskControl; break; case XK_Meta_L: case XK_Meta_R: if (down) currentModifiers |= kCGEventFlagMaskAlternate; else currentModifiers &= ~kCGEventFlagMaskAlternate; break; case XK_Alt_L: case XK_Alt_R: if (down) currentModifiers |= kCGEventFlagMaskCommand; else currentModifiers &= ~kCGEventFlagMaskCommand; break; } [self sendKeyEvent:keyCode down:down modifiers:currentModifiers]; } else { if (*(theServer->pressModsForKeys)) { if (theServer->keyTableMods[keySym] != 0xFF) { // Setup the state of the appropriate keys based on the value in the KeyTableMods CGEventFlags oldModifiers = currentModifiers; CGEventFlags modifiersToSend = kCGEventFlagMaskNonCoalesced; if ((theServer->keyTableMods[keySym] << 8) & shiftKey) modifiersToSend |= kCGEventFlagMaskShift; if ((theServer->keyTableMods[keySym] << 8) & optionKey) modifiersToSend |= kCGEventFlagMaskAlternate; if ((theServer->keyTableMods[keySym] << 8) & controlKey) modifiersToSend |= kCGEventFlagMaskControl; // Treat command key separately (not as part of the generation string) modifiersToSend |= (currentModifiers & kCGEventFlagMaskCommand); [self setKeyModifiers: modifiersToSend]; [self sendKeyEvent:keyCode down:down modifiers:modifiersToSend]; // Back to current depressed state [self setKeyModifiers: oldModifiers]; } else { // Not Modified (special keys, other modifiers) [self sendKeyEvent:keyCode down:down modifiers:currentModifiers]; } } else { CGEventFlags oldModifiers = currentModifiers; CGEventFlags modifiersToSend = kCGEventFlagMaskNonCoalesced | (cl->modiferKeys[keyCodeShift] ? kCGEventFlagMaskShift : 0) | (cl->modiferKeys[keyCodeControl] ? kCGEventFlagMaskControl : 0) | (cl->modiferKeys[keyCodeOption] ? kCGEventFlagMaskAlternate : 0) | (cl->modiferKeys[keyCodeCommand] ? kCGEventFlagMaskCommand : 0); [self setKeyModifiers: modifiersToSend]; [self sendKeyEvent:keyCode down:down modifiers:modifiersToSend]; [self setKeyModifiers: oldModifiers]; } } }} - (void) setKeyModifiers: (CGEventFlags) modifierFlags { // If it's a session tap (and we have an event source) then we can specify our own modifiers as part of the event (nothing to do here) // Otherwise we will have to explicitly twiddle them at the HID level based on their current state if (vncTapLocation == kCGHIDEventTap || !vncSourceRef) { CGEventRef event = nil; // Toggle the state of the appropriate keys if ((currentModifiers & kCGEventFlagMaskCommand) != (modifierFlags & kCGEventFlagMaskCommand)) { [self sendKeyEvent:keyCodeCommand down:((modifierFlags & kCGEventFlagMaskCommand) != 0) modifiers:0]; } if ((currentModifiers & kCGEventFlagMaskShift) != (modifierFlags & kCGEventFlagMaskShift)) { [self sendKeyEvent:keyCodeShift down:((modifierFlags & kCGEventFlagMaskShift) != 0) modifiers:0]; } if ((currentModifiers & kCGEventFlagMaskAlternate) != (modifierFlags & kCGEventFlagMaskAlternate)) { [self sendKeyEvent:keyCodeOption down:((modifierFlags & kCGEventFlagMaskAlternate) != 0) modifiers:0]; } if ((currentModifiers & kCGEventFlagMaskControl) != (modifierFlags & kCGEventFlagMaskControl)) { [self sendKeyEvent:keyCodeControl down:((modifierFlags & kCGEventFlagMaskControl) != 0) modifiers:0]; } if (modifierDelay) usleep(modifierDelay); } currentModifiers = modifierFlags;} - (BOOL) checkModiferState { CGEventFlags actualFlags = CGEventSourceFlagsState(CGEventSourceGetSourceStateID(vncSourceRef)); BOOL match = YES; if ((actualFlags & kCGEventFlagMaskCommand) != (currentModifiers & kCGEventFlagMaskCommand) || (actualFlags & kCGEventFlagMaskShift) != (currentModifiers & kCGEventFlagMaskShift) || (actualFlags & kCGEventFlagMaskAlternate) != (currentModifiers & kCGEventFlagMaskAlternate) || (actualFlags & kCGEventFlagMaskControl) != (currentModifiers & kCGEventFlagMaskControl)) { match = NO; //NSLog(@"Actual(%0x) did not match Recorded (%0x)", actualFlags & 0xffffffff, currentModifiers & 0xffffffff); } return match;} - (void) sendKeyEvent: (CGKeyCode) keyCode down: (BOOL) down modifiers: (CGEventFlags) modifiersToSend { if (!vncSourceRef) { CGPostKeyboardEvent(0, keyCode, down); } else { CGEventRef event = CGEventCreateKeyboardEvent(vncSourceRef, keyCode, down); // The value of this function escapes me (since you still need to specify the keyCode for it to work // CGEventKeyboardSetUnicodeString (event, 1, (const UniChar *) &keySym); // If it's a session tap then we can specify our own modifiers as part of the event if (vncTapLocation != kCGHIDEventTap) CGEventSetFlags(event, modifiersToSend); CGEventPost(vncTapLocation, event); if (vncTapLocation == kCGHIDEventTap) { int maxWait = 250000; // 1/4 second // NEED TO WAIT UNTIL MODIFIER FLAGS REFLECT THE EXPECTED STATE while ([self checkModiferState] == NO && maxWait > 0) { maxWait -= 10000; usleep(10000); } } CFRelease(event); }} void SyncSetKeyboardLayout (TISInputSourceRef inputSource) { // http://developer.apple.com/library/mac/#documentation/TextFonts/Reference/TextInputSourcesReference/Reference/reference.html if (TISSelectInputSource(inputSource) != noErr) { NSLog(@"Error selecting input source:"); }} //- (void) sendKeyEvent: (NSDictionary *) eventData {// NSDictionary *eventDictionary = [NSDictionary dictionaryWithObjectsAndKeys:// [NSNumber numberWithInt: keyCode], @"keyCode",// [NSNumber numberWithBool:down], @"down",// [NSNumber numberWithLong: modifiersToSend], @"modifierFlags",// nil];// [self performSelectorOnMainThread:@selector(sendKeyEvent:) withObject:eventDictionary waitUntilDone:YES]; // CGKeyCode keyCode = [[eventData objectForKey:@"keyCode"] intValue];// BOOL down = [[eventData objectForKey:@"down"] boolValue];// CGEventFlags localModifierFlags = [[eventData objectForKey:@"modifierFlags"] longValue];//} @end You can’t perform that action at this time.