securite: #87 T5c script-src sans unsafe-inline (nonces T5b)

2026-09-27 10:36:00 -04:00
parent e9b7a317c1
commit 6b878caff3
10 changed files with 31 additions and 14 deletions
@@ -182,9 +182,13 @@ class SecurityHeadersMiddleware(BaseHTTPMiddleware):
        # A route may set a stricter per-response policy (e.g. ``sandbox`` for
        # standalone SVG, #108-B3); keep it instead of overwriting it.
        if "Content-Security-Policy" not in response.headers:
+            # #87 T5c : `script-src` sans 'unsafe-inline' — seuls les scripts
+            # avec un nonce frais (`backend.csp`) ou servis par 'self'/CDN
+            # listés s'exécutent. `style-src` garde 'unsafe-inline' (attributs
+            # `style=` et `el.style` omniprésents — chantier séparé).
            response.headers["Content-Security-Policy"] = (
                "default-src 'self'; "
-                f"script-src 'self' 'unsafe-inline' 'nonce-{nonce}' blob: https://cdnjs.cloudflare.com https://unpkg.com https://esm.sh https://cdn.jsdelivr.net https://static.cloudflareinsights.com; "
+                f"script-src 'self' 'nonce-{nonce}' blob: https://cdnjs.cloudflare.com https://unpkg.com https://esm.sh https://cdn.jsdelivr.net https://static.cloudflareinsights.com; "
                "style-src 'self' 'unsafe-inline' https://cdnjs.cloudflare.com https://fonts.googleapis.com https://cdn.jsdelivr.net https://esm.sh; "
                "img-src 'self' data: blob:; "
                "connect-src 'self' blob: https://esm.sh https://unpkg.com https://cdnjs.cloudflare.com https://fonts.googleapis.com https://fonts.gstatic.com https://cdn.jsdelivr.net; "