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Add password support for vnc

This commit is contained in:
Sharat M R 2020-03-18 17:16:47 +05:30
parent 0ee71d3551
commit 49b7842f47
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GPG Key ID: E450A6E45DAE1B94
2 changed files with 49 additions and 3 deletions
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12
Preferences.plist
View File

@ -33,6 +33,18 @@
<key>PostNotification</key>
<string>com.cosmosgenius.screendump/preferences.changed</string>
</dict>
<dict>
<key>cell</key>
<string>PSSecureEditTextCell</string>
<key>defaults</key>
<string>com.cosmosgenius.screendump</string>
<key>key</key>
<string>CCSPassword</string>
<key>label</key>
<string>Password</string>
<key>PostNotification</key>
<string>com.cosmosgenius.screendump/preferences.changed</string>
</dict>
</array>
</dict>
</plist>

40
Tweak.xm
View File

@ -7,6 +7,7 @@
#define kSettingsPath [NSHomeDirectory() stringByAppendingPathComponent:@"/Library/Preferences/com.cosmosgenius.screendump.plist"]
static bool CCSisEnabled = true;
static NSString *CCSPassword = nil;
static rfbScreenInfoPtr screen;
static bool isVNCRunning;
// static NSCondition *condition_;
@ -42,14 +43,30 @@ extern "C" kern_return_t IOMobileFramebufferSwapSetLayer(
extern "C" void IOSurfaceFlushProcessorCaches(IOSurfaceRef buffer);
extern "C" int IOSurfaceLock(IOSurfaceRef surface, uint32_t options, uint32_t *seed);
extern "C" int IOSurfaceUnlock(IOSurfaceRef surface, uint32_t options, uint32_t *seed);
static void VNCUpdateRunState(bool shouldStart);
static IOSurfaceAcceleratorRef accelerator;
static IOSurfaceRef static_buffer;
static void VNCSettings(bool shouldStart, NSString *password);
static void VNCUpdateRunState(bool shouldStart);
static void handleVNCKeyboard(rfbBool down, rfbKeySym key, rfbClientPtr client);
static void handleVNCPointer(int buttons, int x, int y, rfbClientPtr client);
static rfbBool VNCCheck(rfbClientPtr client, const char *data, int size) {
NSString *password = reinterpret_cast<NSString *>(screen->authPasswdData);
if(!password) {
return TRUE;
}
if ([password length] == 0) {
return TRUE;
}
NSAutoreleasePool *pool([[NSAutoreleasePool alloc] init]);
rfbEncryptBytes(client->authChallenge, const_cast<char *>([password UTF8String]));
bool good(memcmp(client->authChallenge, data, size) == 0);
[pool release];
return good;
}
static void VNCSetup() {
int argc(1);
char *arg0(strdup("ScreenDumpVNC"));
@ -61,6 +78,7 @@ static void VNCSetup() {
screen->serverFormat.blueShift = bits_per_sample * 0;
screen->kbdAddEvent = &handleVNCKeyboard;
screen->ptrAddEvent = &handleVNCPointer;
screen->passwordCheck = &VNCCheck;
free(arg0);
VNCUpdateRunState(CCSisEnabled);
}
@ -116,10 +134,25 @@ static void initialBuffer() {
}
}
static void VNCSettings(bool shouldStart, NSString* password) {
CCSisEnabled = shouldStart;
if(password) {
CCSPassword = password;
}
NSString *sEnabled = CCSisEnabled ? @"YES": @"NO";
// NSLog(@"screendump: Settings(Enabled:%@, Password:%@)", sEnabled, CCSPassword);
VNCUpdateRunState(CCSisEnabled);
}
static void VNCUpdateRunState(bool shouldStart) {
if(screen == NULL) {
return;
}
if(CCSPassword && CCSPassword.length) {
screen->authPasswdData = (void *) CCSPassword;
} else {
screen->authPasswdData = NULL;
}
if(shouldStart == isVNCRunning) {
return;
}
@ -185,10 +218,11 @@ static void loadPrefs(void)
}
if(prefs) {
CCSisEnabled = [prefs objectForKey:@"CCSisEnabled"] ? [[prefs objectForKey:@"CCSisEnabled"] boolValue] : CCSisEnabled;
bool isEnabled = [prefs objectForKey:@"CCSisEnabled"] ? [[prefs objectForKey:@"CCSisEnabled"] boolValue] : CCSisEnabled;
NSString *password = [prefs objectForKey:@"CCSPassword"];
[prefs release];
VNCSettings(isEnabled, password);
}
VNCUpdateRunState(CCSisEnabled);
}
%hookf(kern_return_t, IOMobileFramebufferSwapSetLayer, IOMobileFramebufferRef fb, int layer, IOSurfaceRef buffer, CGRect bounds, CGRect frame, int flags) {