회원가입 리팩토링

+import json
+import uuid
+from django.contrib.auth.hashers import make_password, check_password
+from django.core.exceptions import ValidationError
+from django.core.validators import validate_email
+from django.utils import timezone
+from ..models import File, User
+
+
 # 회원가입
 def create(request):
+    # Load
+    try:
+        received = json.loads(request.body.decode('utf-8'))
+    except json.decoder.JSONDecodeError:
+        return {'result': False, 'error': '입력이 잘못되었습니다.'}
+
+    # Validate
+    if 'email' not in received \
+            or 'password' not in received \
+            or 'name' not in received:
+        return {'result': False, 'error': '입력이 누락되었습니다.'}
+
+    # Validate Email
+    try:
+        validate_email(received['email'])
+    except ValidationError:
+        return {'result': False, 'error': '이메일 형식이 잘못되었습니다.'}
+
+    # Validate Password
+    if len(received['password']) < 8:
+        return {'result': False, 'error': '비밀번호는 최소 8글자 입니다.'}
+
+    # Validate Name
+    if len(received['name']) > 50:
+        return {'result': False, 'error': '이름은 최대 50글자 입니다.'}
+
+    # Check Duplicates
+    is_exists = User.objects.filter(email=received['email'])
+    if len(is_exists) > 0:
+        return {'result': False, 'error': '이미 사용중인 이메일 주소 입니다.'}
+
+    # Insert
+    root_folder = uuid.uuid4()
+    user = User.objects.create(
+        email=received['email'],
+        password=make_password(received['password']),
+        name=received['name'],
+        root_folder=root_folder,
+        created_at=timezone.now()
+    )
+    File.objects.create(
+        id=uuid.uuid4(),
+        owner_user_id=user.id,
+        type='folder',
+        name='user_%s' % user.id,
+        size=0,
+        created_at=timezone.now()
+    )
+
     return {'result': True}