feat: rate limiting

app/server.py

@@ -2,6 +2,8 @@ import logging
 import typing
 
 import flask
+import flask_limiter
+import flask_limiter.util
 import gunicorn.app.base
 
 from app import PKG_NAME
@@ -22,12 +24,19 @@ class Server(gunicorn.app.base.BaseApplication):
         self.app = flask.Flask(
             PKG_NAME, static_folder="dist/assets", template_folder="dist"
         )
+        self.limiter = flask_limiter.Limiter(
+            flask_limiter.util.get_remote_address,
+            app=self.app,
+            default_limits=["100 per minute"],
+            storage_uri=params.cache_uri,
+        )
         self._index_content: str | None = None
         self.logger: logging.Logger = logging.getLogger(self.__class__.__name__)
         super().__init__()
 
     def register_routes(self) -> typing.Self:
         @self.app.route("/")
+        @self.limiter.exempt
         def index() -> str:
             return flask.render_template("index.html")