fix: redirect original (#27759)

server/src/controllers/asset-media.controller.spec.ts

@@ -166,11 +166,16 @@ describe(AssetMediaController.name, () => {
     });
 
     // TODO figure out how to deal with `sendFile`
-    describe.skip('GET /assets/:id/thumbnail', () => {
-      it('should be an authenticated route', async () => {
+    describe('GET /assets/:id/thumbnail', () => {
+      it.skip('should be an authenticated route', async () => {
         await request(ctx.getHttpServer()).get(`/assets/${factory.uuid()}/thumbnail`);
         expect(ctx.authenticate).toHaveBeenCalled();
       });
+
+      it('should redirect if size=original is requested', async () => {
+        const { status } = await request(ctx.getHttpServer()).get(`/assets/${factory.uuid()}/thumbnail?size=original`);
+        expect(status).toBe(302);
+      });
     });
   });
 });

server/src/controllers/asset-media.controller.ts

@@ -126,6 +126,16 @@ export class AssetMediaController {
     @Res() res: Response,
     @Next() next: NextFunction,
   ) {
+    if (dto.size === AssetMediaSize.Original) {
+      this.logger.deprecate(
+        'Calling the thumbnail endpoint with size=original is deprecated. Use the :id/original endpoint instead',
+      );
+      const [_, reqSearch] = req.url.split('?');
+      const redirSearchParams = new URLSearchParams(reqSearch);
+      redirSearchParams.delete('size');
+      return res.redirect('original' + '?' + redirSearchParams.toString());
+    }
+
     const viewThumbnailRes = await this.service.viewThumbnail(auth, id, dto);
 
     if (viewThumbnailRes instanceof ImmichFileResponse) {