04-ago: [bugfix] NAS Download Station error 105: _sid como query param en GET (DSM 7)

vigilancia/nas_dl.py

@@ -73,11 +73,20 @@ def unrestrict_rd(uri):
 
 
 def _api(path, params, session=None):
-    data = urllib.parse.urlencode(params).encode()
-    headers = {"Content-Type": "application/x-www-form-urlencoded"}
+    """Llama a la API del NAS. DSM 7 exige GET con `_sid` en la query string.
+    Si `session` viene como 'sid=<x>' se extrae y se anade a la query."""
+    sid = None
     if session:
-        headers["Cookie"] = session
-    req = urllib.request.Request(f"{BASE_URL}{path}", data=data, headers=headers)
+        if session.startswith("sid="):
+            sid = session[4:]
+        elif session.startswith("_sid="):
+            sid = session[5:]
+    if sid:
+        params = dict(params)
+        params["_sid"] = sid
+    qs = urllib.parse.urlencode(params)
+    req = urllib.request.Request(f"{BASE_URL}{path}?{qs}",
+                                 headers={"Cookie": session or ""})
     with urllib.request.urlopen(req, timeout=20) as r:
         return json.loads(r.read().decode())