New API: check_version

app/routes.py

@@ -20,6 +20,63 @@ DEBUG = False  # if false, don't publish error messages
 
 # Les paquets publiés:
 DEBIAN_PACKAGES_EXP = "/srv/packages/pool/main/s/scodoc9/scodoc9_*.deb"
+RELEASE_LOG_FILE = "/home/viennet/scodoc-releases.log"
+
+
+@bp.route("/scodoc-installmgr/check_version/<client_version>")
+def check_version(client_version: str):
+    """check version vs release
+    return json
+    {
+        "status": "ok",
+        "client_version" : "9.1.81", // la version du client
+        "client_version_date" : int // timestamp version
+        "last_version" : "9.1.82" // derniere version dispo
+        "last_version_date": int // timestamp derniere version
+    }
+    Le client devrait se plaindre de manque de mise à jour si
+    (client_version != last_version) et (now - last_version_date) > 1 jour
+
+    Si la version du client n'est pas trouvée dans RELEASE_LOG_FILE
+    renvoie client_version et client_version_date nulls.
+    """
+    try:
+        with open(RELEASE_LOG_FILE) as f:
+            data = [l.strip().split() for l in f]
+    except FileNotFoundError:
+        return jsonify({"status": "error 1"})
+    if len(data) < 1:
+        return jsonify({"status": "error 2"})
+    release_date = {k: v for v, k in data}  # version : date
+    last_version = data[-1][1]
+    last_version_date_str = data[-1][0]
+    try:
+        dt = datetime.datetime.strptime(last_version_date_str, "%Y-%m-%dT%H:%M:%S%z")
+    except ValueError:
+        return jsonify({"status": "error 3"})
+    last_version_date = dt.timestamp()
+    #
+    client_version_date_str = release_date.get(client_version, None)
+    if client_version_date_str is None:
+        client_version = None  # not found ? (client altered version ?)
+        client_version_date = None
+    else:
+        try:
+            dt = datetime.datetime.strptime(
+                client_version_date_str, "%Y-%m-%dT%H:%M:%S%z"
+            )
+            client_version_date = dt.timestamp()
+        except ValueError:
+            return jsonify({"status": "error 4"})
+    return jsonify(
+        {
+            "status": "ok",
+            "client_version": client_version,
+            "client_version_date": client_version_date,
+            "last_version": last_version,
+            "last_version_date": last_version_date,
+        }
+    )
 
 
 @bp.route("/scodoc-installmgr/last_stable_version")
@@ -42,14 +99,14 @@ def last_stable_version():
     last_package_filename = version_tuples[-1][-1]
     package_mtime = os.path.getmtime(last_package_filename)
     package_version_string = ".".join([str(x) for x in last_package_version])
-    return jsonify( {
+    return jsonify(
+        {
             "publication_time": package_mtime,  # float, time
             "version": package_version_string,
         }
     )
 
 
-
 @bp.route("/scodoc-installmgr/upload-dump", methods=["POST"])
 def upload_scodoc9():
     """Réception d'un fichier de dump"""