Code refactoring

- Code refactoring mainly for API
- Delete a useless option in `setting.py`
- Change some constants in Link Play mode

latest version/api/token.py

@@ -0,0 +1,57 @@
+from base64 import b64decode
+
+from core.api_user import APIUser
+from core.error import ArcError, PostError
+from core.sql import Connect
+from flask import Blueprint, request
+
+from .api_auth import request_json_handle, role_required
+from .api_code import error_return, success_return
+
+bp = Blueprint('token', __name__, url_prefix='/token')
+
+
+@bp.route('', methods=['POST'])
+@request_json_handle(request, required_keys=['auth'])
+def token_post(data):
+    '''
+        登录，获取token\ 
+        {'auth': base64('<user_id>:<password>')}
+    '''
+    try:
+        auth_decode = bytes.decode(b64decode(data['auth']))
+    except:
+        return error_return(PostError(api_error_code=-100))
+    if not ':' in auth_decode:
+        return error_return(PostError(api_error_code=-100))
+    name, password = auth_decode.split(':', 1)
+
+    with Connect() as c:
+        try:
+            user = APIUser(c)
+            user.login(name, password, request.remote_addr)
+            return success_return({'token': user.token, 'user_id': user.user_id})
+        except ArcError as e:
+            return error_return(e)
+    return error_return()
+
+
+@bp.route('', methods=['GET'])
+@role_required(request, ['select_me', 'select'])
+def token_get(user):
+    '''判断登录有效性'''
+    return success_return()
+
+
+@bp.route('', methods=['DELETE'])
+@role_required(request, ['change_me', 'select_me', 'select'])
+def token_delete(user):
+    '''登出'''
+    with Connect() as c:
+        try:
+            user.c = c
+            user.logout()
+            return success_return()
+        except ArcError as e:
+            return error_return(e)
+    return error_return()