Adopt to run as a standalone app (#38)

* Adopt to run as a standalone app

* Bump to v0.6.0

README.md

@@ -55,6 +55,12 @@ c.GalleryManager.exhibits = [
 
 Using the Python file enables injecting the personal access token (PAT) into the `token` stanza if you prefer to store it in an environment variable rather than in the configuration file (recommended).
 
+The gallery application backend can be run as a standalone server app by executing:
+
+```bash
+jupyterlab-gallery
+```
+
 ## Requirements
 
 - JupyterLab >= 4.0.0

jupyterlab_gallery/app.py

@@ -1,4 +1,5 @@
 from jupyter_server.extension.application import ExtensionApp
+from jupyter_server.serverapp import ServerApp
 from .handlers import ExhibitsHandler, GalleryHandler, PullHandler
 from .manager import GalleryManager
 
@@ -12,9 +13,8 @@ class GalleryApp(ExtensionApp):
         ("jupyterlab-gallery/pull", PullHandler),
     ]
 
-    # default_url = "/jupyterlab-gallery"
-    # load_other_extensions = True
-    # file_url_prefix = "/gallery"
+    default_url = "/jupyterlab-gallery/gallery"
+    load_other_extensions = False
 
     def initialize_settings(self):
         self.log.info("Configured gallery manager")
@@ -28,3 +28,16 @@ def initialize_handlers(self):
         self.serverapp.web_app.settings["nbapp"] = self.serverapp
 
         self.log.info(f"Registered {self.name} server extension")
+
+    @classmethod
+    def make_serverapp(cls, **kwargs) -> ServerApp:
+        """Instantiate the ServerApp
+
+        Override to disable default_services which would give access
+        to files on the disk (`contents` service) or allow execution
+        code (`kernels` service).
+        """
+        server_app = super().make_serverapp(**kwargs)
+        assert len(server_app.default_services) > 1
+        server_app.default_services = ("auth", "security")
+        return server_app

package.json

@@ -1,6 +1,6 @@
 {
     "name": "jupyterlab-gallery",
-    "version": "0.5.0",
+    "version": "0.6.0",
     "description": "A JupyterLab gallery extension for presenting and downloading examples from remote repositories",
     "keywords": [
         "jupyter",

pyproject.toml

@@ -39,6 +39,9 @@ test = [
 ]
 dev = ["ruff==0.4.4"]
 
+[project.scripts]
+jupyterlab-gallery = "jupyterlab_gallery:GalleryApp.launch_instance"
+
 [tool.hatch.version]
 source = "nodejs"