add signup, login api

-# Generated by Django 3.0.7 on 2020-06-04 19:52
-
-from django.db import migrations, models
-import django.db.models.deletion
-
-
-class Migration(migrations.Migration):
-
-    initial = True
-
-    dependencies = [
-    ]
-
-    operations = [
-        migrations.CreateModel(
-            name='SharedItem',
-            fields=[
-                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
-                ('item_id', models.IntegerField()),
-                ('valid', models.DateTimeField()),
-                ('password', models.CharField(max_length=20)),
-            ],
-            options={
-                'ordering': ['item_id'],
-            },
-        ),
-        migrations.CreateModel(
-            name='User',
-            fields=[
-                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
-                ('int_id', models.IntegerField()),
-                ('user_id', models.CharField(max_length=50)),
-                ('name', models.CharField(max_length=50)),
-                ('password', models.CharField(max_length=20)),
-                ('total_size', models.IntegerField()),
-                ('current_size', models.IntegerField()),
-            ],
-            options={
-                'ordering': ['int_id'],
-            },
-        ),
-        migrations.CreateModel(
-            name='Item',
-            fields=[
-                ('item_id', models.IntegerField(primary_key=True, serialize=False)),
-                ('is_folder', models.BooleanField(default=False)),
-                ('name', models.CharField(max_length=50)),
-                ('path', models.TextField()),
-                ('user_id', models.IntegerField()),
-                ('size', models.IntegerField()),
-                ('is_deleted', models.BooleanField(default=False)),
-                ('created_time', models.DateTimeField()),
-                ('updated_time', models.DateTimeField()),
-                ('status', models.BooleanField()),
-                ('parent', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='api.Item')),
-            ],
-            options={
-                'ordering': ['item_id'],
-            },
-        ),
-    ]
+# Generated by Django 3.0.6 on 2020-06-11 14:54
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Item',
+            fields=[
+                ('item_id', models.AutoField(primary_key=True, serialize=False)),
+                ('is_folder', models.BooleanField(default=False)),
+                ('name', models.CharField(max_length=50)),
+                ('file_type', models.CharField(max_length=100, null=True)),
+                ('path', models.TextField()),
+                ('parent', models.IntegerField()),
+                ('user_id', models.IntegerField()),
+                ('size', models.IntegerField()),
+                ('is_deleted', models.BooleanField(default=False)),
+                ('created_time', models.DateTimeField(auto_now=True)),
+                ('updated_time', models.DateTimeField(null=True)),
+                ('status', models.BooleanField()),
+            ],
+            options={
+                'ordering': ['item_id'],
+            },
+        ),
+        migrations.CreateModel(
+            name='SharedItem',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('item_id', models.IntegerField()),
+                ('expires', models.DateTimeField()),
+                ('password', models.CharField(max_length=20)),
+                ('created_time', models.DateTimeField(auto_now=True)),
+            ],
+            options={
+                'ordering': ['item_id'],
+            },
+        ),
+        migrations.CreateModel(
+            name='User',
+            fields=[
+                ('int_id', models.AutoField(primary_key=True, serialize=False)),
+                ('user_id', models.CharField(max_length=50)),
+                ('name', models.CharField(max_length=50)),
+                ('password', models.CharField(max_length=20)),
+                ('total_size', models.IntegerField()),
+                ('current_size', models.IntegerField()),
+                ('created_time', models.DateTimeField(auto_now=True)),
+            ],
+            options={
+                'ordering': ['int_id'],
+            },
+        ),
+    ]

-# Generated by Django 3.0.7 on 2020-06-05 09:51
-
-from django.db import migrations, models
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ('api', '0001_initial'),
-    ]
-
-    operations = [
-        migrations.AlterField(
-            model_name='item',
-            name='parent',
-            field=models.IntegerField(),
-        ),
-    ]

-# Generated by Django 3.0.6 on 2020-06-06 08:17
-
-from django.db import migrations
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ('api', '0002_auto_20200605_1851'),
-    ]
-
-    operations = [
-        migrations.RenameField(
-            model_name='shareditem',
-            old_name='valid',
-            new_name='expires',
-        ),
-    ]

-# Generated by Django 3.0.6 on 2020-06-06 08:24
-
-from django.db import migrations, models
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ('api', '0003_auto_20200606_0817'),
-    ]
-
-    operations = [
-        migrations.AddField(
-            model_name='shareditem',
-            name='created_time',
-            field=models.DateTimeField(auto_now=True),
-        ),
-        migrations.AddField(
-            model_name='user',
-            name='created_time',
-            field=models.DateTimeField(auto_now=True),
-        ),
-        migrations.AlterField(
-            model_name='item',
-            name='created_time',
-            field=models.DateTimeField(auto_now=True),
-        ),
-    ]

-# Generated by Django 3.0.6 on 2020-06-10 11:50
-
-from django.db import migrations, models
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ('api', '0004_auto_20200606_0824'),
-    ]
-
-    operations = [
-        migrations.AlterField(
-            model_name='item',
-            name='item_id',
-            field=models.IntegerField(auto_created=True, primary_key=True, serialize=False),
-        ),
-    ]

-# Generated by Django 3.0.6 on 2020-06-10 12:09
-
-from django.db import migrations, models
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ('api', '0005_auto_20200610_1150'),
-    ]
-
-    operations = [
-        migrations.AlterField(
-            model_name='item',
-            name='item_id',
-            field=models.AutoField(primary_key=True, serialize=False),
-        ),
-    ]

-# Generated by Django 3.0.6 on 2020-06-10 12:17
-
-from django.db import migrations, models
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ('api', '0006_auto_20200610_1209'),
-    ]
-
-    operations = [
-        migrations.AlterField(
-            model_name='item',
-            name='updated_time',
-            field=models.DateTimeField(null=True),
-        ),
-    ]

-# Generated by Django 3.0.6 on 2020-06-10 13:29
-
-from django.db import migrations, models
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ('api', '0007_auto_20200610_1217'),
-    ]
-
-    operations = [
-        migrations.AddField(
-            model_name='item',
-            name='file_type',
-            field=models.CharField(max_length=100, null=True),
-        ),
-    ]

@@ -33,7 +33,7 @@ class SharedItem(models.Model):
 
 
 
 
 class User(models.Model):
 class User(models.Model):
-    int_id = models.IntegerField()
+    int_id = models.AutoField(primary_key = True)
     user_id = models.CharField(max_length = 50)
     user_id = models.CharField(max_length = 50)
     name = models.CharField(max_length = 50)
     name = models.CharField(max_length = 50)
     password = models.CharField(max_length = 20)
     password = models.CharField(max_length = 20)

 import mimetypes
 import mimetypes
 import json
 import json
 import os
 import os
-from datetime import datetime
+from datetime import datetime, timedelta
 
 
 import boto3
 import boto3
 
 
-from django.contrib.auth.models import User
 from django.core import serializers
 from django.core import serializers
 from django.views.decorators.csrf import csrf_exempt
 from django.views.decorators.csrf import csrf_exempt
 from rest_framework import viewsets
 from rest_framework import viewsets
@@ -14,10 +13,13 @@ from rest_framework.response import Response
 from rest_framework.decorators import action
 from rest_framework.decorators import action
 from rest_framework.permissions import IsAuthenticated, AllowAny
 from rest_framework.permissions import IsAuthenticated, AllowAny
 
 
-from api.models import Item, SharedItem
+from api.models import Item, SharedItem, User
 from api.serializers import UserSerializer,GroupSerializer,ItemSerializer
 from api.serializers import UserSerializer,GroupSerializer,ItemSerializer
 from rest_framework import status
 from rest_framework import status
 from annoying.functions import get_object_or_None
 from annoying.functions import get_object_or_None
+from django.conf import settings
+import jwt
+from django.http import HttpResponse, JsonResponse
 
 
 class UserViewSet(viewsets.ModelViewSet):
 class UserViewSet(viewsets.ModelViewSet):
     """
     """
@@ -27,6 +29,70 @@ class UserViewSet(viewsets.ModelViewSet):
     serializer_class = UserSerializer
     serializer_class = UserSerializer
     permission_classes = [permissions.IsAuthenticated]
     permission_classes = [permissions.IsAuthenticated]
 
 
+    @csrf_exempt
+    @action(detail=False, methods=['POST'], permission_classes=[permissions.AllowAny], url_path='signup', url_name='singup')
+    def signup(self, request):
+        user_id = request.POST.get('user_id', '')
+        name = request.POST.get('name', '')
+        password = request.POST.get('password', '')
+        user = get_object_or_None(User, user_id=user_id)
+        if user == None:
+            user = User(user_id = user_id, name = name, password = password, total_size=100000, current_size = 0)
+            user.save()
+            return Response({
+                'message': 'user created',
+                'int_id': user.int_id,
+                'user_id': user.user_id,
+                'name': user.name,
+                'total_size': user.total_size,
+                'current_size': user.current_size,
+                'created_time': user.created_time
+            },
+                status=status.HTTP_200_OK,
+            )
+        else:
+            return Response({'message': 'user is already exist.'}, status=status.HTTP_204_NO_CONTENT)
+
+    @csrf_exempt
+    @action(methods=['post'], detail=False, permission_classes=[permissions.AllowAny],
+            url_path='login', url_name='login')
+    def login(self, request):
+        if not request.data:
+            return Response({'Error': "Please provide user_id/password"}, status=status.HTTP_400_BAD_REQUEST)
+        user_id = request.POST['user_id']
+        password = request.POST['password']
+        try:
+            user = User.objects.get(user_id=user_id, password=password)
+        except User.DoesNotExist:
+            return Response({'Error': "Invalid user_id/password"}, status=status.HTTP_400_BAD_REQUEST)
+        if user:
+            payload1 = {
+                'int_id': user.int_id,
+                'user_id': user.user_id,
+                'exp': datetime.utcnow() + timedelta(seconds=300)
+            }
+            payload2 = {
+                'int_id': user.int_id,
+                'user_id': user.user_id,
+                'exp': datetime.utcnow() + timedelta(days=5)
+            }
+            access = jwt.encode(payload1, settings.SECRET_KEY, algorithm='HS256').decode('utf-8')
+            refresh = jwt.encode(payload2, settings.SECRET_KEY, algorithm='HS256').decode('utf-8')
+            exp = jwt.decode(access, settings.SECRET_KEY, algorithm='HS256')['exp']
+            token = {'access': access,
+                     'refresh': refresh,
+                     'exp': exp}
+            return JsonResponse(
+                token,
+                status=status.HTTP_200_OK,
+            )
+        else:
+            return JsonResponse(
+                {'Error': "Invalid credentials"},
+                status=status.HTTP_400_BAD_REQUEST,
+            )
+        return JsonResponse(status=status.HTTP_405_METHOD_NOT_ALLOWED)
+
 
 
 class ItemViewSet(viewsets.ViewSet):
 class ItemViewSet(viewsets.ViewSet):
 
 

@@ -34,5 +34,6 @@ urlpatterns = [
     url(r'^<int:pk>/move/$', views.ItemViewSet.move, name='move'),
     url(r'^<int:pk>/move/$', views.ItemViewSet.move, name='move'),
     url(r'^<int:pk>/copy/$', views.ItemViewSet.copy, name='copy'),
     url(r'^<int:pk>/copy/$', views.ItemViewSet.copy, name='copy'),
     url(r'^<int:pk>/children/$', views.ItemViewSet.children, name='copy'),
     url(r'^<int:pk>/children/$', views.ItemViewSet.children, name='copy'),
+    url(r'^signup/$', views.UserViewSet.signup, name='signup'),
 
 
 ]
 ]