[Enhance][Bug fix] Improve setting file & ...

- Fix a small bug that `best30` of API cannot have scores whose songs are not in database
- At present the setting file can be a module or a file with some of options
- Limiter can have multiple rules together now

latest version/server/__init__.py

@@ -1,5 +1,5 @@
+from core.config_manager import Config
 from flask import Blueprint
-from setting import Config
 
 from . import (auth, course, friend, multiplayer, others, present, purchase,
                score, user, world)

latest version/server/auth.py

@@ -1,11 +1,11 @@
 import base64
 from functools import wraps
 
+from core.config_manager import Config
 from core.error import ArcError, NoAccess
 from core.sql import Connect
 from core.user import UserAuth, UserLogin
 from flask import Blueprint, jsonify, request
-from setting import Config
 
 from .func import arc_try, error_return
 

latest version/server/func.py

@@ -1,9 +1,9 @@
 from functools import wraps
 from traceback import format_exc
 
+from core.config_manager import Config
 from core.error import ArcError
 from flask import current_app, jsonify
-from setting import Config
 
 default_error = ArcError('Unknown Error', status=500)
 

latest version/server/init.py

@@ -25,10 +25,6 @@ def check_before_run(app):
 
     f = True
 
-    if not os.path.exists('setting.py'):
-        app.logger.warning('File `setting.py` is missing.')
-        f = False
-
     if not os.path.exists('database'):
         app.logger.warning('Folder `database` is missing.')
         f = False

latest version/server/multiplayer.py

@@ -1,8 +1,8 @@
+from core.config_manager import Config
 from core.error import ArcError
 from core.linkplay import Player, RemoteMultiPlayer, Room
 from core.sql import Connect
 from flask import Blueprint, request
-from setting import Config
 
 from .auth import auth_required
 from .func import arc_try, success_return

latest version/server/others.py

@@ -2,7 +2,7 @@ import json
 from urllib.parse import parse_qs, urlparse
 
 from core.download import DownloadList
-from core.error import ArcError
+from core.error import RateLimit
 from core.sql import Connect
 from core.system import GameInfo
 from core.user import UserOnline
@@ -34,7 +34,7 @@ def download_song(user_id):
         x.song_ids = request.args.getlist('sid')
         x.url_flag = json.loads(request.args.get('url', 'true'))
         if x.url_flag and x.is_limited:
-            raise ArcError('You have reached the download limit.', 903)
+            raise RateLimit('You have reached the download limit.', 903)
 
         x.add_songs()
         return success_return(x.urls)

latest version/server/user.py

@@ -1,11 +1,11 @@
 from core.character import UserCharacter
+from core.config_manager import Config
 from core.error import ArcError, NoAccess
 from core.item import ItemCore
 from core.save import SaveData
 from core.sql import Connect
 from core.user import User, UserLogin, UserOnline, UserRegister
 from flask import Blueprint, request
-from setting import Config
 
 from .auth import auth_required
 from .func import arc_try, success_return