Temporarily recreate implied Localhost permissions

OnShowPermissionPrompt is only called *once* when a page requests
permission. If it is denied, even automatically, this code path
will never be triggered again.

Author: WizardCM

browser-client.cpp

@@ -56,6 +56,13 @@ CefRefPtr<CefDisplayHandler> BrowserClient::GetDisplayHandler()
 	return this;
 }
 
+#if CHROME_VERSION_BUILD >= 6533
+CefRefPtr<CefPermissionHandler> BrowserClient::GetPermissionHandler()
+{
+	return this;
+}
+#endif
+
 CefRefPtr<CefLifeSpanHandler> BrowserClient::GetLifeSpanHandler()
 {
 	return this;
@@ -306,6 +313,21 @@ bool BrowserClient::OnTooltip(CefRefPtr<CefBrowser>, CefString &text)
 	return true;
 }
 
+#if CHROME_VERSION_BUILD >= 6533
+/* CefPermissionHandler */
+bool BrowserClient::OnShowPermissionPrompt(CefRefPtr<CefBrowser>, uint64_t, const CefString &,
+					   uint32_t requested_permissions,
+					   CefRefPtr<CefPermissionPromptCallback> callback)
+{
+	// Implicitly allow Localhost access to retain previous behavior for now
+	if ((requested_permissions & CEF_PERMISSION_TYPE_LOOPBACK_NETWORK) != 0) {
+		callback->Continue(CEF_PERMISSION_RESULT_ACCEPT);
+		return true;
+	}
+	return false;
+}
+#endif
+
 void BrowserClient::OnPaint(CefRefPtr<CefBrowser>, PaintElementType type, const RectList &, const void *buffer,
 			    int width, int height)
 {

browser-client.hpp

@@ -27,6 +27,9 @@ struct BrowserSource;
 
 class BrowserClient : public CefClient,
 		      public CefDisplayHandler,
+#if CHROME_VERSION_BUILD >= 6533
+		      public CefPermissionHandler,
+#endif
 		      public CefLifeSpanHandler,
 		      public CefRequestHandler,
 		      public CefResourceRequestHandler,
@@ -66,6 +69,9 @@ class BrowserClient : public CefClient,
 	virtual CefRefPtr<CefLoadHandler> GetLoadHandler() override;
 	virtual CefRefPtr<CefRenderHandler> GetRenderHandler() override;
 	virtual CefRefPtr<CefDisplayHandler> GetDisplayHandler() override;
+#if CHROME_VERSION_BUILD >= 6533
+	virtual CefRefPtr<CefPermissionHandler> GetPermissionHandler() override;
+#endif
 	virtual CefRefPtr<CefLifeSpanHandler> GetLifeSpanHandler() override;
 	virtual CefRefPtr<CefRequestHandler> GetRequestHandler() override;
 	virtual CefRefPtr<CefContextMenuHandler> GetContextMenuHandler() override;
@@ -80,6 +86,13 @@ class BrowserClient : public CefClient,
 				      const CefString &source, int line) override;
 	virtual bool OnTooltip(CefRefPtr<CefBrowser> browser, CefString &text) override;
 
+	/* CefPermissionHandler */
+#if CHROME_VERSION_BUILD >= 6533
+	virtual bool OnShowPermissionPrompt(CefRefPtr<CefBrowser> browser, uint64_t prompt_id,
+					    const CefString &requesting_origin, uint32_t requested_permissions,
+					    CefRefPtr<CefPermissionPromptCallback> callback) override;
+#endif
+
 	/* CefLifeSpanHandler */
 	virtual bool OnBeforePopup(CefRefPtr<CefBrowser> browser, CefRefPtr<CefFrame> frame,
 #if CHROME_VERSION_BUILD >= 6834

panel/browser-panel-client.cpp

@@ -43,6 +43,11 @@ CefRefPtr<CefCommandHandler> QCefBrowserClient::GetCommandHandler()
 {
 	return this;
 }
+
+CefRefPtr<CefPermissionHandler> QCefBrowserClient::GetPermissionHandler()
+{
+	return this;
+}
 #endif
 
 CefRefPtr<CefRequestHandler> QCefBrowserClient::GetRequestHandler()
@@ -81,6 +86,19 @@ bool QCefBrowserClient::OnChromeCommand(CefRefPtr<CefBrowser>, int, cef_window_o
 {
 	return true;
 }
+
+/* CefPermissionHandler */
+bool QCefBrowserClient::OnShowPermissionPrompt(CefRefPtr<CefBrowser> browser, uint64_t, const CefString &,
+					       uint32_t requested_permissions,
+					       CefRefPtr<CefPermissionPromptCallback> callback)
+{
+	// Implicitly allow Localhost access to retain previous behavior for now
+	if ((requested_permissions & CEF_PERMISSION_TYPE_LOOPBACK_NETWORK) != 0) {
+		callback->Continue(CEF_PERMISSION_RESULT_ACCEPT);
+		return true;
+	}
+	return false;
+}
 #endif
 
 /* CefDisplayHandler */

panel/browser-panel-client.hpp

@@ -9,6 +9,7 @@ class QCefBrowserClient : public CefClient,
 			  public CefDisplayHandler,
 #if CHROME_VERSION_BUILD >= 6533
 			  public CefCommandHandler,
+			  public CefPermissionHandler,
 #endif
 			  public CefRequestHandler,
 			  public CefLifeSpanHandler,
@@ -31,6 +32,7 @@ class QCefBrowserClient : public CefClient,
 	virtual CefRefPtr<CefDisplayHandler> GetDisplayHandler() override;
 #if CHROME_VERSION_BUILD >= 6533
 	virtual CefRefPtr<CefCommandHandler> GetCommandHandler() override;
+	virtual CefRefPtr<CefPermissionHandler> GetPermissionHandler() override;
 #endif
 	virtual CefRefPtr<CefRequestHandler> GetRequestHandler() override;
 	virtual CefRefPtr<CefLifeSpanHandler> GetLifeSpanHandler() override;
@@ -43,6 +45,12 @@ class QCefBrowserClient : public CefClient,
 #if CHROME_VERSION_BUILD >= 6533
 	virtual bool OnChromeCommand(CefRefPtr<CefBrowser> browser, int command_id,
 				     cef_window_open_disposition_t disposition) override;
+
+	/* CefPermissionHandler */
+	virtual bool OnShowPermissionPrompt(CefRefPtr<CefBrowser> browser, uint64_t prompt_id,
+					    const CefString &requesting_origin, uint32_t requested_permissions,
+					    CefRefPtr<CefPermissionPromptCallback> callback) override;
+
 #endif
 
 	/* CefDisplayHandler */