From ebebf33558f942d4827a1d8a497741963f2cbd62 Mon Sep 17 00:00:00 2001
From: Emmanuel <viennet@scodoc.org>
Date: Tue, 22 Mar 2022 09:01:29 +0100
Subject: [PATCH] New API: check_version

---
 app/routes.py | 75 ++++++++++++++++++++++++++++++++++++++++++++-------
 1 file changed, 66 insertions(+), 9 deletions(-)

diff --git a/app/routes.py b/app/routes.py
index bf5a36e..ee7acb7 100644
--- a/app/routes.py
+++ b/app/routes.py
@@ -19,7 +19,64 @@ UPLOAD_LOG_FILENAME = os.path.join(DIR, "upload-dump-log.json")
 DEBUG = False  # if false, don't publish error messages
 
 # Les paquets publiés:
-DEBIAN_PACKAGES_EXP="/srv/packages/pool/main/s/scodoc9/scodoc9_*.deb"
+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")
@@ -29,11 +86,11 @@ def last_stable_version():
     """
     # LAST_RELEASE_TAG=$(curl "$GITEA_RELEASE_URL" | jq ".[].tag_name" | tr -d -c "0-9.\n" | sort --version-sort | tail -1)
     debs = glob.glob(DEBIAN_PACKAGES_EXP)
-    version_tuples = [] # (9,1,81)
+    version_tuples = []  # (9,1,81)
     for filename in debs:
         m = re.match(r".*scodoc9_9\.([0-9]{1,2})\.([0-9]{1,3})-1_amd64.deb", filename)
         if m:
-            version_tuples.append( (9, int(m.group(1)), int(m.group(2)), filename) )
+            version_tuples.append((9, int(m.group(1)), int(m.group(2)), filename))
 
     if len(version_tuples) == 0:
         return "?.?.?"
@@ -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( {
-        "publication_time": package_mtime, # float, time
-        "version" : package_version_string,
+    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"""
@@ -83,8 +140,8 @@ def upload_scodoc9():
         "sco_subversion": request.form.get("sco_subversion", ""),
         "dump_filename": fulltime + "_" + clean_deptname + ".gz",
         "dump_size": len(data),
-        "message" : request.form.get("message", ""),
-        "request_url" : request.form.get("request_url", ""),
+        "message": request.form.get("message", ""),
+        "request_url": request.form.get("request_url", ""),
         "remote_addr": remote_addr,
         "remote_host": remote_host,
     }