Option to disable cookie database locking

src/dullahan.h

@@ -161,6 +161,7 @@ class dullahan
             bool use_mock_keychain = false;             // like adding --use-mock-keychain to Chrome command line
             bool autoplay_without_gesture = false;      // like adding --autoplay-policy=???? to Chrome command line
             bool fake_ui_for_media_stream = false;      // like adding --fake-ui-for-media-stream to Chrome command line
+            bool disable_cookie_database_locking = true;// like adding --disable-features=LockProfileCookieDatabase to the Chrome command line
             bool flash_enabled = true;                  // system flash plugin
             bool force_wave_audio = false;              // forces Windows WaveOut/In audio
             bool image_shrink_standalone_to_fit = true; // scale standalone images larger than browser size to fit

src/dullahan_impl.cpp

@@ -72,6 +72,7 @@ dullahan_impl::dullahan_impl() :
     mUseMockKeyChain(false),
     mAutoPlayWithoutGesture(false),
     mFakeUIForMediaStream(false),
+    mDisableCookieDatabaseLocking(true),
     mFlipPixelsY(false),
     mFlipMouseY(false),
     mRequestContext(nullptr),
@@ -92,6 +93,8 @@ void dullahan_impl::OnBeforeCommandLineProcessing(const CefString& process_type,
 {
     if (process_type.empty())
     {
+        std::vector<std::string> disable_features;
+
         // <ND> Enable HTMLImports to get youtube live chat to work
         command_line->AppendSwitchWithValue("enable-blink-features", "HTMLImports");
         if (mMediaStreamEnabled == true)
@@ -133,7 +136,7 @@ void dullahan_impl::OnBeforeCommandLineProcessing(const CefString& process_type,
 
         if (mDisableNetworkService)
         {
-            command_line->AppendSwitchWithValue("disable-features", "NetworkService");
+            disable_features.push_back("NetworkService");
         }
 
         if (mUseMockKeyChain)
@@ -156,6 +159,25 @@ void dullahan_impl::OnBeforeCommandLineProcessing(const CefString& process_type,
             command_line->AppendSwitchWithValue("--proxy-server", mProxyHostPort);
         }
 
+#ifdef WIN32
+        if (mDisableCookieDatabaseLocking)
+        {
+            disable_features.push_back("LockProfileCookieDatabase");
+        }
+#endif
+
+        if (!disable_features.empty())
+        {
+            std::ostringstream disabled_features;
+
+			for (size_t i = 0, n = disable_features.size(); i < n; ++i) {
+                if (i > 0) disabled_features << ',';
+                disabled_features << disable_features[i];
+            }
+
+            command_line->AppendSwitchWithValue("disable-features", disabled_features.str());
+        }
+
         platformAddCommandLines(command_line);
     }
 }
@@ -381,6 +403,12 @@ bool dullahan_impl::initCEF(dullahan::dullahan_settings& user_settings)
     // provide their own ("Allow, "Disallow") UI.
     mFakeUIForMediaStream = user_settings.fake_ui_for_media_stream;
 
+    // this flag if set, disables a security measure introduced in Chrome 114 for W32 that
+    // prevents multiple processes from accessing the cookie database. It is recommended to
+    // enable this if the application spawns more than one Dullahan process, or when multiple
+    // simultaneous instances of the application needs to be supported.
+    mDisableCookieDatabaseLocking = user_settings.disable_cookie_database_locking;
+
     // if true, this setting inverts the pixels in Y direction - useful if your texture
     // coords are upside down compared to default for Dullahan
     mFlipPixelsY = user_settings.flip_pixels_y;

src/dullahan_impl.h

@@ -166,6 +166,7 @@ class dullahan_impl :
         bool mUseMockKeyChain;
         bool mAutoPlayWithoutGesture;
         bool mFakeUIForMediaStream;
+        bool mDisableCookieDatabaseLocking;
         bool mFlipPixelsY;
         bool mFlipMouseY;
         double mRequestedPageZoom;