Secure start cmd with User object without lang, add kfet cmd bool return support, fix grammar and update requirements

Languages/en.json

@@ -6,7 +6,7 @@
   "setedt_err_res": "Invalid resources ! \u274C\n\u2139Put your resources number or a export url/QR code of your calendar",
   "setedt": "EDT set \u2705",
   "getedt_err": "No EDT set ! \u274C",
-  "notif_event": "\uD83D\uDD14A event is coming !\n",
+  "notif_event": "\uD83D\uDD14An event is coming !\n",
   "kfet": "\uD83D\uDD14Your command is ready !",
   "kfet_prb": "\u26A0Your command got a problem, go check whats happening",
   "kfet_err": "\u274CYour order is not out",

bot.py

@@ -103,7 +103,8 @@ async def start(message: types.Message):
     with dbL:
         with shelve.open("edt", writeback=True) as db:
             if user_id not in db:
-                db[user_id] = User(int(user_id), message.from_user.locale.language)
+                lg = message.from_user.locale.language if message.from_user.locale.language else ""
+                db[user_id] = User(int(user_id), lg)
             user = db[user_id]
     await message.reply(lang(user, "welcome"), parse_mode=ParseMode.MARKDOWN)
 
@@ -147,6 +148,7 @@ async def kfet(message: types.Message):
             else:
                 msg = lang(db[user_id], "kfet_list")
                 cmds = requests.get(KFET_URL).json()
+                if cmds:
                     for c in cmds:
                         msg += markdown.code(c) + " " if cmds[c]["statut"] == "T" else ""
     await message.reply(msg, parse_mode=ParseMode.MARKDOWN)

requirements.txt

@@ -9,8 +9,10 @@ chardet==3.0.4
 ics==0.5
 idna==2.8
 multidict==4.5.2
+Pillow==6.1.0
 python-dateutil==2.8.0
 pytz==2019.2
+pyzbar==0.1.8
 requests==2.22.0
 six==1.12.0
 urllib3==1.25.3