🎨 — Use a POST request for automatic refresh

argos/server/routes/views.py

@@ -1,9 +1,11 @@
 """Web interface for humans"""
 from collections import defaultdict
 from functools import cmp_to_key
+from typing import Annotated
 from urllib.parse import urlparse
 
-from fastapi import APIRouter, Depends, Request
+from fastapi import APIRouter, Cookie, Depends, Form, Request, status
+from fastapi.responses import RedirectResponse
 from fastapi.templating import Jinja2Templates
 from sqlalchemy import func
 from sqlalchemy.orm import Session
@@ -23,8 +25,8 @@ SEVERITY_LEVELS = {"ok": 1, "warning": 2, "critical": 3, "unknown": 4}
 async def get_severity_counts_view(
     request: Request,
     db: Session = Depends(get_db),
-    refresh: bool = False,
+    auto_refresh_enabled: Annotated[bool, Cookie()] = False,
-    delay: int = 15,
+    auto_refresh_seconds: Annotated[int, Cookie()] = 15,
 ):
     """Shows the number of results per severity"""
     counts_dict = await queries.get_severity_counts(db)
@@ -37,8 +39,8 @@ async def get_severity_counts_view(
             "request": request,
             "counts_dict": counts_dict,
             "agents": agents,
-            "refresh": refresh,
+            "auto_refresh_enabled": auto_refresh_enabled,
-            "delay": delay,
+            "auto_refresh_seconds": auto_refresh_seconds,
         },
     )
 
@@ -151,3 +153,18 @@ async def get_agents_view(request: Request, db: Session = Depends(get_db)):
     return templates.TemplateResponse(
         "agents.html", {"request": request, "last_seen": last_seen}
     )
+
+
+@route.post("/refresh")
+async def set_refresh_cookies_view(
+    request: Request,
+    auto_refresh_enabled: Annotated[bool, Form()] = False,
+    auto_refresh_seconds: Annotated[int, Form()] = 15,
+):
+    response = RedirectResponse(
+        request.url_for("get_severity_counts_view"),
+        status_code=status.HTTP_303_SEE_OTHER,
+    )
+    response.set_cookie(key="auto_refresh_enabled", value=auto_refresh_enabled)
+    response.set_cookie(key="auto_refresh_seconds", value=int(auto_refresh_seconds))
+    return response

argos/server/templates/base.html

@@ -9,9 +9,9 @@
               content="width=device-width, initial-scale=1.0">
         <meta http-equiv="X-UA-Compatible"
               content="IE=Edge">
-        {% if refresh %}
+        {% if auto_refresh_enabled %}
         <meta http-equiv="refresh"
-              content="{{ delay }}">
+              content="{{ auto_refresh_seconds }}">
         {% endif %}
         <link rel="stylesheet"
               href="{{ url_for('static', path='/styles.css') }}">

argos/server/templates/index.html

@@ -13,27 +13,27 @@
             <ul>
                 <li>
                     <input id="auto-refresh"
-                           name="refresh"
+                           name="auto_refresh_enabled"
                            type="checkbox"
                            form="refresh-form"
-                           {{ 'checked' if refresh }}>
+                           {{ 'checked' if auto_refresh_enabled }}>
                     <label for="auto-refresh" class="inline-label">Auto-refresh</label>
                 </li>
                 <li>
                     <label class="inline-label">
                         Every <input id="refresh-delay"
                                      class="initial-width"
-                                     name="delay"
+                                     name="auto_refresh_seconds"
                                      type="number"
                                      form="refresh-form"
                                      min="1"
-                                     value="{{ delay }}"> seconds
+                                     value="{{ auto_refresh_seconds }}"> seconds
                     </label>
                 </li>
                 <li>
                     <form id="refresh-form"
-                          method="get"
+                          method="post"
-                          action="{{ url_for('get_severity_counts_view') }}">
+                          action="{{ url_for('set_refresh_cookies_view') }}">
                         <input type="Submit">
                     </form>
                 </li>

pyproject.toml

@@ -24,6 +24,7 @@ dependencies = [
   "Jinja2>=3.0,<4",
   "pydantic[email]>=2.4,<3",
   "pydantic-settings>=2.0,<3",
+  "python-multipart>=0.0.9,<1",
   "pyyaml>=6.0,<7",
   "pyyaml-include>=1.3,<2",
   "sqlalchemy[asyncio]>=2.0,<3",