Boolean
AXEnabled(void)
{
if (AXAPIEnabled() != 0) {
return TRUE;
} else {
return FALSE;
}
}
COSXScreen::COSXScreen(IEventQueue* events, bool isPrimary, bool autoShowHideCursor) :
CPlatformScreen(events),
m_events(events),
MouseButtonEventMap(NumButtonIDs),
m_isPrimary(isPrimary),
m_isOnScreen(m_isPrimary),
m_cursorPosValid(false),
m_cursorHidden(false),
m_dragNumButtonsDown(0),
m_dragTimer(NULL),
m_keyState(NULL),
m_sequenceNumber(0),
m_screensaver(NULL),
m_screensaverNotify(false),
m_ownClipboard(false),
m_clipboardTimer(NULL),
m_hiddenWindow(NULL),
m_userInputWindow(NULL),
m_switchEventHandlerRef(0),
m_pmMutex(new CMutex),
m_pmWatchThread(NULL),
m_pmThreadReady(new CCondVar<bool>(m_pmMutex, false)),
m_activeModifierHotKey(0),
m_activeModifierHotKeyMask(0),
m_lastSingleClick(0),
m_lastDoubleClick(0),
m_lastSingleClickXCursor(0),
m_lastSingleClickYCursor(0),
m_autoShowHideCursor(autoShowHideCursor),
m_eventTapRLSR(nullptr),
m_eventTapPort(nullptr),
m_pmRootPort(0)
{
try {
m_displayID = CGMainDisplayID();
updateScreenShape(m_displayID, 0);
m_screensaver = new COSXScreenSaver(m_events, getEventTarget());
m_keyState = new COSXKeyState(m_events);
// TODO: http://stackoverflow.com/questions/2950124/enable-access-for-assistive-device-programmatically
if (m_isPrimary && !AXAPIEnabled())
throw XArch("system setting not enabled: \"Enable access for assistive devices\"");
// install display manager notification handler
#if defined(MAC_OS_X_VERSION_10_5)
CGDisplayRegisterReconfigurationCallback(displayReconfigurationCallback, this);
#else
m_displayManagerNotificationUPP =
NewDMExtendedNotificationUPP(displayManagerCallback);
OSStatus err = GetCurrentProcess(&m_PSN);
err = DMRegisterExtendedNotifyProc(m_displayManagerNotificationUPP,
this, 0, &m_PSN);
#endif
// install fast user switching event handler
EventTypeSpec switchEventTypes[2];
switchEventTypes[0].eventClass = kEventClassSystem;
switchEventTypes[0].eventKind = kEventSystemUserSessionDeactivated;
switchEventTypes[1].eventClass = kEventClassSystem;
switchEventTypes[1].eventKind = kEventSystemUserSessionActivated;
EventHandlerUPP switchEventHandler =
NewEventHandlerUPP(userSwitchCallback);
InstallApplicationEventHandler(switchEventHandler, 2, switchEventTypes,
this, &m_switchEventHandlerRef);
DisposeEventHandlerUPP(switchEventHandler);
constructMouseButtonEventMap();
// watch for requests to sleep
m_events->adoptHandler(m_events->forCOSXScreen().confirmSleep(),
getEventTarget(),
new TMethodEventJob<COSXScreen>(this,
&COSXScreen::handleConfirmSleep));
// create thread for monitoring system power state.
*m_pmThreadReady = false;
LOG((CLOG_DEBUG "starting watchSystemPowerThread"));
m_pmWatchThread = new CThread(new TMethodJob<COSXScreen>
(this, &COSXScreen::watchSystemPowerThread));
}
catch (...) {
m_events->removeHandler(m_events->forCOSXScreen().confirmSleep(),
getEventTarget());
if (m_switchEventHandlerRef != 0) {
RemoveEventHandler(m_switchEventHandlerRef);
}
#if defined(MAC_OS_X_VERSION_10_5)
CGDisplayRemoveReconfigurationCallback(displayReconfigurationCallback, this);
#else
if (m_displayManagerNotificationUPP != NULL) {
DMRemoveExtendedNotifyProc(m_displayManagerNotificationUPP,
NULL, &m_PSN, 0);
}
if (m_hiddenWindow) {
ReleaseWindow(m_hiddenWindow);
m_hiddenWindow = NULL;
}
if (m_userInputWindow) {
ReleaseWindow(m_userInputWindow);
m_userInputWindow = NULL;
}
#endif
delete m_keyState;
delete m_screensaver;
throw;
}
// install event handlers
m_events->adoptHandler(CEvent::kSystem, m_events->getSystemTarget(),
new TMethodEventJob<COSXScreen>(this,
&COSXScreen::handleSystemEvent));
// install the platform event queue
m_events->adoptBuffer(new COSXEventQueueBuffer(m_events));
}
COSXScreen::COSXScreen(bool isPrimary) :
m_isPrimary(isPrimary),
m_isOnScreen(m_isPrimary),
m_cursorPosValid(false),
m_cursorHidden(false),
m_dragNumButtonsDown(0),
m_dragTimer(NULL),
m_keyState(NULL),
m_sequenceNumber(0),
m_screensaver(NULL),
m_screensaverNotify(false),
m_ownClipboard(false),
m_clipboardTimer(NULL),
m_hiddenWindow(NULL),
m_userInputWindow(NULL),
m_switchEventHandlerRef(0),
m_pmMutex(new CMutex),
m_pmWatchThread(NULL),
m_pmThreadReady(new CCondVar<bool>(m_pmMutex, false)),
m_activeModifierHotKey(0),
m_activeModifierHotKeyMask(0)
{
try {
m_displayID = CGMainDisplayID();
updateScreenShape(m_displayID, 0);
m_screensaver = new COSXScreenSaver(getEventTarget());
m_keyState = new COSXKeyState();
if (m_isPrimary) {
if (!AXAPIEnabled()) {
LOG((CLOG_ERR "Synergy server requires accessibility API enabled. Please check the option for \"Enable access for assistive devices\" in the Universal Access System Preferences panel. Unintentional key-replication will occur until this is fixed."));
}
}
// install display manager notification handler
#if defined(MAC_OS_X_VERSION_10_5)
CGDisplayRegisterReconfigurationCallback(displayReconfigurationCallback, this);
#else
m_displayManagerNotificationUPP =
NewDMExtendedNotificationUPP(displayManagerCallback);
OSStatus err = GetCurrentProcess(&m_PSN);
err = DMRegisterExtendedNotifyProc(m_displayManagerNotificationUPP,
this, 0, &m_PSN);
#endif
// install fast user switching event handler
EventTypeSpec switchEventTypes[2];
switchEventTypes[0].eventClass = kEventClassSystem;
switchEventTypes[0].eventKind = kEventSystemUserSessionDeactivated;
switchEventTypes[1].eventClass = kEventClassSystem;
switchEventTypes[1].eventKind = kEventSystemUserSessionActivated;
EventHandlerUPP switchEventHandler =
NewEventHandlerUPP(userSwitchCallback);
InstallApplicationEventHandler(switchEventHandler, 2, switchEventTypes,
this, &m_switchEventHandlerRef);
DisposeEventHandlerUPP(switchEventHandler);
// watch for requests to sleep
EVENTQUEUE->adoptHandler(COSXScreen::getConfirmSleepEvent(),
getEventTarget(),
new TMethodEventJob<COSXScreen>(this,
&COSXScreen::handleConfirmSleep));
// create thread for monitoring system power state.
LOG((CLOG_DEBUG "starting watchSystemPowerThread"));
m_pmWatchThread = new CThread(new TMethodJob<COSXScreen>
(this, &COSXScreen::watchSystemPowerThread));
}
catch (...) {
EVENTQUEUE->removeHandler(COSXScreen::getConfirmSleepEvent(),
getEventTarget());
if (m_switchEventHandlerRef != 0) {
RemoveEventHandler(m_switchEventHandlerRef);
}
#if defined(MAC_OS_X_VERSION_10_5)
CGDisplayRemoveReconfigurationCallback(displayReconfigurationCallback, this);
#else
if (m_displayManagerNotificationUPP != NULL) {
DMRemoveExtendedNotifyProc(m_displayManagerNotificationUPP,
NULL, &m_PSN, 0);
}
if (m_hiddenWindow) {
ReleaseWindow(m_hiddenWindow);
m_hiddenWindow = NULL;
}
if (m_userInputWindow) {
ReleaseWindow(m_userInputWindow);
m_userInputWindow = NULL;
}
#endif
delete m_keyState;
delete m_screensaver;
throw;
}
// install event handlers
EVENTQUEUE->adoptHandler(CEvent::kSystem, IEventQueue::getSystemTarget(),
new TMethodEventJob<COSXScreen>(this,
&COSXScreen::handleSystemEvent));
// install the platform event queue
EVENTQUEUE->adoptBuffer(new COSXEventQueueBuffer);
}
static void *hook_thread_proc(void *arg) {
int *status = (int *) arg;
*status = UIOHOOK_FAILURE;
bool accessibilityEnabled = false;
// FIXME Move to osx_input_helper.h after testing.
#ifdef USE_WEAK_IMPORT
// Check and make sure assistive devices is enabled.
if (AXIsProcessTrustedWithOptions != NULL) {
// New accessibility API 10.9 and later.
const void * keys[] = { kAXTrustedCheckOptionPrompt };
const void * values[] = { kCFBooleanTrue };
CFDictionaryRef options = CFDictionaryCreate(
kCFAllocatorDefault,
keys,
values,
sizeof(keys) / sizeof(*keys),
&kCFCopyStringDictionaryKeyCallBacks,
&kCFTypeDictionaryValueCallBacks);
accessibilityEnabled = AXIsProcessTrustedWithOptions(options);
}
else {
// Old accessibility check 10.8 and older.
accessibilityEnabled = AXAPIEnabled();
}
#else
// Dynamically load the application services framework for examination.
const char *dlError = NULL;
void *libApplicaitonServices = dlopen("/System/Library/Frameworks/ApplicationServices.framework/ApplicationServices", RTLD_LAZY);
dlError = dlerror();
if (libApplicaitonServices != NULL && dlError == NULL) {
// Check for the new function AXIsProcessTrustedWithOptions().
*(void **) (&AXIsProcessTrustedWithOptions_t) = dlsym(libApplicaitonServices, "AXIsProcessTrustedWithOptions");
dlError = dlerror();
if (AXIsProcessTrustedWithOptions_t != NULL && dlError == NULL) {
// Check for property kAXTrustedCheckOptionPrompt
CFStringRef kAXTrustedCheckOptionPrompt_t = (CFStringRef) dlsym(libApplicaitonServices, "kAXTrustedCheckOptionPrompt");
dlError = dlerror();
if (kAXTrustedCheckOptionPrompt_t != NULL && dlError == NULL) {
// New accessibility API 10.9 and later.
// FIXME This is causing a segfault on 10.9 probably due to an invalid pointer type.
const void * keys[] = { kAXTrustedCheckOptionPrompt_t };
const void * values[] = { kCFBooleanTrue };
CFDictionaryRef options = CFDictionaryCreate(
kCFAllocatorDefault,
keys,
values,
sizeof(keys) / sizeof(*keys),
&kCFCopyStringDictionaryKeyCallBacks,
&kCFTypeDictionaryValueCallBacks);
accessibilityEnabled = (*AXIsProcessTrustedWithOptions_t)(options);
}
}
else {
logger(LOG_LEVEL_DEBUG, "%s [%u]: Falling back to AXAPIEnabled(). (%s)\n",
__FUNCTION__, __LINE__, dlError);
// Check for the fallback function AXAPIEnabled().
*(void **) (&AXAPIEnabled_t) = dlsym(libApplicaitonServices, "AXAPIEnabled");
dlError = dlerror();
if (AXAPIEnabled_t != NULL && dlError == NULL) {
// Old accessibility check 10.8 and older.
accessibilityEnabled = (*AXAPIEnabled_t)();
}
else {
// Could not load the AXAPIEnabled function!
logger(LOG_LEVEL_ERROR, "%s [%u]: Failed to locate AXAPIEnabled()! (%s)\n",
__FUNCTION__, __LINE__, dlError);
}
}
dlclose(libApplicaitonServices);
}
else {
// Could not load the ApplicationServices framework!
logger(LOG_LEVEL_ERROR, "%s [%u]: Failed to lazy load the ApplicationServices framework! (%s)\n",
__FUNCTION__, __LINE__, dlError);
}
#endif
if (accessibilityEnabled == true) {
logger(LOG_LEVEL_DEBUG, "%s [%u]: Accessibility API is enabled.\n",
__FUNCTION__, __LINE__);
// Setup the event mask to listen for.
CGEventMask event_mask = CGEventMaskBit(kCGEventKeyDown) |
CGEventMaskBit(kCGEventKeyUp) |
CGEventMaskBit(kCGEventFlagsChanged) |
CGEventMaskBit(kCGEventLeftMouseDown) |
CGEventMaskBit(kCGEventLeftMouseUp) |
CGEventMaskBit(kCGEventLeftMouseDragged) |
CGEventMaskBit(kCGEventRightMouseDown) |
CGEventMaskBit(kCGEventRightMouseUp) |
CGEventMaskBit(kCGEventRightMouseDragged) |
CGEventMaskBit(kCGEventOtherMouseDown) |
CGEventMaskBit(kCGEventOtherMouseUp) |
CGEventMaskBit(kCGEventOtherMouseDragged) |
CGEventMaskBit(kCGEventMouseMoved) |
CGEventMaskBit(kCGEventScrollWheel);
#ifdef USE_DEBUG
event_mask |= CGEventMaskBit(kCGEventNull);
#endif
CFMachPortRef event_port = CGEventTapCreate(
kCGSessionEventTap, // kCGHIDEventTap
kCGHeadInsertEventTap, // kCGTailAppendEventTap
kCGEventTapOptionListenOnly, // kCGEventTapOptionDefault See Bug #22
event_mask,
hook_event_proc,
NULL
);
if (event_port != NULL) {
logger(LOG_LEVEL_DEBUG, "%s [%u]: CGEventTapCreate Successful.\n",
__FUNCTION__, __LINE__);
event_source = CFMachPortCreateRunLoopSource(kCFAllocatorDefault, event_port, 0);
if (event_source != NULL) {
logger(LOG_LEVEL_DEBUG, "%s [%u]: CFMachPortCreateRunLoopSource successful.\n",
__FUNCTION__, __LINE__);
event_loop = CFRunLoopGetCurrent();
if (event_loop != NULL) {
logger(LOG_LEVEL_DEBUG, "%s [%u]: CFRunLoopGetCurrent successful.\n",
__FUNCTION__, __LINE__);
// Initialize Native Input Functions.
load_input_helper();
// Create run loop observers.
CFRunLoopObserverRef observer = CFRunLoopObserverCreate(
kCFAllocatorDefault,
kCFRunLoopEntry | kCFRunLoopExit, //kCFRunLoopAllActivities,
true,
0,
hook_status_proc,
NULL
);
if (observer != NULL) {
// Set the exit status.
*status = UIOHOOK_SUCCESS;
start_message_port_runloop();
CFRunLoopAddSource(event_loop, event_source, kCFRunLoopDefaultMode);
CFRunLoopAddObserver(event_loop, observer, kCFRunLoopDefaultMode);
CFRunLoopRun();
// Lock back up until we are done processing the exit.
CFRunLoopRemoveObserver(event_loop, observer, kCFRunLoopDefaultMode);
CFRunLoopRemoveSource(event_loop, event_source, kCFRunLoopDefaultMode);
CFRunLoopObserverInvalidate(observer);
stop_message_port_runloop();
}
else {
// We cant do a whole lot of anything if we cant
// create run loop observer.
logger(LOG_LEVEL_ERROR, "%s [%u]: CFRunLoopObserverCreate failure!\n",
__FUNCTION__, __LINE__);
// Set the exit status.
*status = UIOHOOK_ERROR_OBSERVER_CREATE;
}
// Cleanup Native Input Functions.
unload_input_helper();
}
else {
logger(LOG_LEVEL_ERROR, "%s [%u]: CFRunLoopGetCurrent failure!\n",
__FUNCTION__, __LINE__);
// Set the exit status.
*status = UIOHOOK_ERROR_GET_RUNLOOP;
}
// Clean up the event source.
CFRelease(event_source);
}
else {
logger(LOG_LEVEL_ERROR, "%s [%u]: CFMachPortCreateRunLoopSource failure!\n",
__FUNCTION__, __LINE__);
// Set the exit status.
*status = UIOHOOK_ERROR_CREATE_RUN_LOOP_SOURCE;
}
// Stop the CFMachPort from receiving any more messages.
CFMachPortInvalidate(event_port);
CFRelease(event_port);
}
else {
logger(LOG_LEVEL_ERROR, "%s [%u]: Failed to create event port!\n",
__FUNCTION__, __LINE__);
// Set the exit status.
*status = UIOHOOK_ERROR_EVENT_PORT;
}
}
else {
logger(LOG_LEVEL_ERROR, "%s [%u]: Accessibility API is disabled!\n",
__FUNCTION__, __LINE__);
// Set the exit status.
*status = UIOHOOK_ERROR_AXAPI_DISABLED;
}
logger(LOG_LEVEL_DEBUG, "%s [%u]: Something, something, something, complete.\n",
__FUNCTION__, __LINE__);
// Make sure we signal that we have passed any exception throwing code.
pthread_mutex_unlock(&hook_control_mutex);
pthread_exit(status);
}
static bool amIAuthorized () {
if (AXAPIEnabled() != 0) {
return true;
}
if (AXIsProcessTrusted() != 0) {
return true;
}
return false;
}
static bool hasAccessibilityAPIAuthorization ()
{
if (AXAPIEnabled() != 0) {
return true;
}
if (AXIsProcessTrusted() != 0) {
return true;
}
return false;
}