implemented cron thread for deleting files

fileHost.py

@@ -53,9 +53,17 @@ class ReverseProxied(object):
 class CronThread(threading.Thread):
 	def __init__(self):
 		threading.Thread.__init__(self)
-	
+		self.stop = threading.Event()
+
 	def run(self):
-		db_execute("SELECT filename, delete_date FROM uploads WHERE delete_date")
+		while not self.stop.is_set():
+			records = db_execute(
+				"SELECT filename, delete_date FROM uploads WHERE delete_date"
+				).fetchall()
+			for filename, delete_date in records:
+				if time.time() >= delete_date:
+					delete_file(filename)
+			time.sleep(60)
 
 
 app = Flask(__name__)
@@ -87,6 +95,7 @@ def init():
 	"""
 	os.makedirs(app.config.get("UPLOAD_DIR"), exist_ok=True)
 
+	# init secret key
 	if os.path.exists("secret_key"):
 		with open("secret_key", "rb") as file:
 			secret_key = file.read()
@@ -96,6 +105,7 @@ def init():
 			file.write(secret_key)
 	app.secret_key = secret_key
 
+	# init db
 	try:
 		db_execute("SELECT * FROM users").fetchone()
 		db_execute("SELECT * FROM uploads").fetchone()
@@ -111,7 +121,11 @@ def init():
 			"uploaded_by TEXT,"
 			"uploaded_date INTEGER DEFAULT (STRFTIME('%s', 'now')),"
 			"delete_date INTEGER)")
-			
+
+	# init cron thread
+	t = CronThread()
+	t.start()
+	app.config["CRON_THREAD"] = t
 
 
 def add_user(username, password, admin="FALSE"):