feat: add optional matomo tracking for pageviews and download

web/app.py

@@ -29,6 +29,22 @@ app.mount("/static", StaticFiles(directory=str(Path(__file__).parent / "static")
 security = HTTPBasic()
 
 
+def get_matomo_context():
+    matomo_url = (os.getenv("MATOMO_URL") or "").strip().rstrip("/")
+    matomo_site_id = (os.getenv("MATOMO_SITE_ID") or "").strip()
+
+    if not matomo_url or not matomo_site_id:
+        return {
+            "matomo_url": None,
+            "matomo_site_id": None,
+        }
+
+    return {
+        "matomo_url": matomo_url,
+        "matomo_site_id": matomo_site_id,
+    }
+
+
 def require_auth(credentials: HTTPBasicCredentials = Depends(security)):
     expected_user = os.getenv("WEB_AUTH_USER")
     expected_password = os.getenv("WEB_AUTH_PASSWORD")
@@ -48,22 +64,28 @@ def require_auth(credentials: HTTPBasicCredentials = Depends(security)):
 
 @app.get("/", response_class=HTMLResponse)
 def landing(request: Request):
+    context = {
+        "request": request,
+    }
+    context.update(get_matomo_context())
+
     return templates.TemplateResponse(
         "landing.html",
-        {
-            "request": request,
-        },
+        context,
     )
 
 
 @app.get("/app", response_class=HTMLResponse)
 def index(request: Request, _: None = Depends(require_auth)):
+    context = {
+        "request": request,
+        "error": None,
+    }
+    context.update(get_matomo_context())
+
     return templates.TemplateResponse(
         "index.html",
-        {
-            "request": request,
-            "error": None,
-        },
+        context,
     )