Makelore 2.0 initial clean snapshot

electron/main/media-permissions.ts

@@ -0,0 +1,76 @@
+import type {
+  BrowserWindow,
+  MediaAccessPermissionRequest,
+  PermissionCheckHandlerHandlerDetails,
+  Session,
+  WebContents,
+} from 'electron';
+
+type MediaPermissionMainWindow = Pick<BrowserWindow, 'isDestroyed'> & {
+  webContents: Pick<WebContents, 'id'> & {
+    session: Pick<Session, 'setPermissionCheckHandler' | 'setPermissionRequestHandler'>;
+  };
+};
+
+type MediaPermissionWebContents = Pick<WebContents, 'id'>;
+type MediaPermissionDetails = Pick<MediaAccessPermissionRequest, 'mediaTypes'>;
+type MediaPermissionCheckDetails = Pick<PermissionCheckHandlerHandlerDetails, 'mediaType'>;
+
+function isMainWindowWebContents(
+  webContents: MediaPermissionWebContents | null | undefined,
+  mainWindow: MediaPermissionMainWindow,
+): boolean {
+  return Boolean(
+    webContents
+    && !mainWindow.isDestroyed()
+    && webContents.id === mainWindow.webContents.id,
+  );
+}
+
+function requestIncludesAudio(details: MediaPermissionDetails | undefined): boolean {
+  const mediaTypes = details?.mediaTypes;
+  return !mediaTypes || mediaTypes.length === 0 || mediaTypes.includes('audio');
+}
+
+function checkIncludesAudio(details: MediaPermissionCheckDetails | undefined): boolean {
+  const mediaType = details?.mediaType;
+  return !mediaType || mediaType === 'audio';
+}
+
+export function isAllowedMediaPermissionCheck(
+  webContents: MediaPermissionWebContents | null | undefined,
+  permission: string,
+  mainWindow: MediaPermissionMainWindow,
+  details?: MediaPermissionCheckDetails,
+): boolean {
+  return (
+    permission === 'media'
+    && isMainWindowWebContents(webContents, mainWindow)
+    && checkIncludesAudio(details)
+  );
+}
+
+export function isAllowedMediaPermissionRequest(
+  webContents: MediaPermissionWebContents | null | undefined,
+  permission: string,
+  details: MediaPermissionDetails | undefined,
+  mainWindow: MediaPermissionMainWindow,
+): boolean {
+  return (
+    permission === 'media'
+    && isMainWindowWebContents(webContents, mainWindow)
+    && requestIncludesAudio(details)
+  );
+}
+
+export function installMediaPermissionHandler(mainWindow: MediaPermissionMainWindow): void {
+  const permissionSession = mainWindow.webContents.session;
+
+  permissionSession.setPermissionCheckHandler((webContents, permission, _requestingOrigin, details) => (
+    isAllowedMediaPermissionCheck(webContents, permission, mainWindow, details)
+  ));
+
+  permissionSession.setPermissionRequestHandler((webContents, permission, callback, details) => {
+    callback(isAllowedMediaPermissionRequest(webContents, permission, details, mainWindow));
+  });
+}