Authentication

Pipfile

@@ -6,6 +6,8 @@ verify_ssl = true
 [dev-packages]
 autopep8 = "*"
 pylint = "*"
+black = "==19.3b0"
+isort = "==4.3.21"
 
 [packages]
 django = "==2.2.3"
@@ -18,6 +20,10 @@ psycopg2 = "==2.7.5"
 django-cors-headers = "==3.0.2"
 gunicorn = "==19.9.0"
 django-heroku = "==0.3.1"
+django-phonenumber-field = "==3.0.1"
+phonenumbers = "==8.10.14"
+pyjwt = "==1.7.1"
+django-filter = "==2.1.0"
 
 [requires]
 python_version = "3.7"

Procfile

@@ -1 +1,2 @@
-web: gunicorn app.wsgi
+release: python manage.py migrate
+web: gunicorn dscountr.wsgi

app/apps.py

@@ -0,0 +1,5 @@
+from django.apps import AppConfig
+
+
+class MyappConfig(AppConfig):
+    name = "app"

app/auth_backend.py

@@ -0,0 +1,23 @@
+from django.conf import settings
+from django.contrib.auth import get_user_model
+from django.contrib.auth.backends import ModelBackend
+
+User = get_user_model()
+
+
+class PasswordlessAuthBackend(ModelBackend):
+    """Log in to Django without providing a password.
+
+    """
+
+    def authenticate(self, username=None):
+        try:
+            return User.objects.get(username=username)
+        except User.DoesNotExist:
+            return None
+
+    def get_user(self, user_id):
+        try:
+            return User.objects.get(pk=user_id)
+        except User.DoesNotExist:
+            return None

app/authentication/admin.py

@@ -0,0 +1,3 @@
+from django.contrib import admin
+
+# Register models here.

app/authentication/backends.py

@@ -0,0 +1,74 @@
+import jwt
+
+from django.conf import settings
+from datetime import datetime
+
+from decouple import config
+
+from rest_framework import authentication, exceptions
+
+from .models import User
+
+
+class JWTAuthentication(authentication.BaseAuthentication):
+    authentication_header_prefix = 'Token'
+
+    def authenticate(self, request):
+        """
+        The `authenticate` method is called on every request regardless of
+        whether the endpoint requires authentication.
+        """
+        request.user = None
+
+        auth_header = authentication.get_authorization_header(request).split()
+        auth_header_prefix = self.authentication_header_prefix.lower()
+
+        if not auth_header:
+            return None
+
+        if len(auth_header) == 1:
+            return None
+
+        elif len(auth_header) > 2:
+            return None
+
+        prefix = auth_header[0].decode('utf-8')
+        token = auth_header[1].decode('utf-8')
+
+        if prefix.lower() != auth_header_prefix:
+            return None
+
+        return self._authenticate_credentials(request, token)
+
+    def _authenticate_credentials(self, request, token):
+        """
+        Try to authenticate the given credentials. If authentication is
+        successful, return the user and token. If not, throw an error.
+        """
+        try:
+            payload = jwt.decode(token, config('SECRET_KEY'))
+        except:
+            msg = 'Invalid authentication. Could not decode token.'
+            raise exceptions.AuthenticationFailed(msg)
+
+        try:
+            user = User.objects.get(pk=payload['id'])
+        except User.DoesNotExist:
+            msg = 'No user matching this token was found.'
+            raise exceptions.AuthenticationFailed(msg)
+
+        if not user.is_active:
+            msg = 'This user has been deactivated.'
+            raise exceptions.AuthenticationFailed(msg)
+
+        return (user, token)
+
+    def generate_token(self, user_id):
+        """
+        gerates jwt token by encoding registered user id
+        """
+        payload = {
+            'id': user_id,
+            'iat': datetime.utcnow()
+        }
+        return jwt.encode(payload, config('SECRET_KEY')).decode('UTF-8')

app/authentication/choices.py

@@ -0,0 +1 @@
+GENDER_CHOICES = (("M", "Male"), ("F", "Female"), ("A", "Alien"))

app/authentication/migrations/0001_initial.py

@@ -0,0 +1,43 @@
+# Generated by Django 2.2.3 on 2019-07-02 20:00
+
+import app.authentication.models
+from django.db import migrations, models
+import phonenumber_field.modelfields
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+        ('auth', '0011_update_proxy_permissions'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='User',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('last_login', models.DateTimeField(blank=True, null=True, verbose_name='last login')),
+                ('is_superuser', models.BooleanField(default=False, help_text='Designates that this user has all permissions without explicitly assigning them.', verbose_name='superuser status')),
+                ('username', models.CharField(db_index=True, max_length=255, unique=True)),
+                ('email', models.EmailField(db_index=True, max_length=254, unique=True)),
+                ('phone_number', phonenumber_field.modelfields.PhoneNumberField(db_index=True, max_length=128, region=None, unique=True)),
+                ('date_of_birth', models.DateField()),
+                ('gender', models.CharField(choices=[('M', 'Male'), ('F', 'Female')], max_length=1)),
+                ('password', models.CharField(max_length=128)),
+                ('is_active', models.BooleanField(default=True)),
+                ('is_staff', models.BooleanField(default=False)),
+                ('created_at', models.DateTimeField(auto_now_add=True)),
+                ('updated_at', models.DateTimeField(auto_now=True)),
+                ('groups', models.ManyToManyField(blank=True, help_text='The groups this user belongs to. A user will get all permissions granted to each of their groups.', related_name='user_set', related_query_name='user', to='auth.Group', verbose_name='groups')),
+                ('user_permissions', models.ManyToManyField(blank=True, help_text='Specific permissions for this user.', related_name='user_set', related_query_name='user', to='auth.Permission', verbose_name='user permissions')),
+            ],
+            options={
+                'verbose_name_plural': 'All Users',
+            },
+            managers=[
+                ('objects', app.authentication.models.UserManager()),
+            ],
+        ),
+    ]

app/authentication/migrations/0002_auto_20190708_1300.py

@@ -0,0 +1,18 @@
+# Generated by Django 2.2.3 on 2019-07-08 13:00
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('authentication', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='user',
+            name='gender',
+            field=models.CharField(choices=[('M', 'Male'), ('F', 'Female'), ('A', 'Alien')], max_length=1),
+        ),
+    ]

app/authentication/migrations/0003_auto_20190711_1054.py

@@ -0,0 +1,18 @@
+# Generated by Django 2.2.3 on 2019-07-11 10:54
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('authentication', '0002_auto_20190708_1300'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='user',
+            name='password',
+            field=models.CharField(max_length=128, verbose_name='password'),
+        ),
+    ]

app/authentication/migrations/0004_auto_20190711_1539.py

@@ -0,0 +1,18 @@
+# Generated by Django 2.2.3 on 2019-07-11 15:39
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('authentication', '0003_auto_20190711_1054'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='user',
+            name='username',
+            field=models.CharField(blank=True, db_index=True, max_length=255, null=True, unique=True),
+        ),
+    ]

app/authentication/migrations/0005_auto_20190711_1828.py

@@ -0,0 +1,18 @@
+# Generated by Django 2.2.3 on 2019-07-11 18:28
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('authentication', '0004_auto_20190711_1539'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='user',
+            name='password',
+            field=models.CharField(blank=True, max_length=255, null=True),
+        ),
+    ]

app/authentication/migrations/0006_auto_20190711_1933.py

@@ -0,0 +1,18 @@
+# Generated by Django 2.2.3 on 2019-07-11 19:33
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('authentication', '0005_auto_20190711_1828'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='user',
+            name='password',
+            field=models.CharField(default='!1xKZFUMiyDaS7Exy0CurdiaQ1Pp88xxHpN0kw3pb', max_length=255),
+        ),
+    ]

app/authentication/migrations/0007_auto_20190716_0917.py

@@ -0,0 +1,29 @@
+# Generated by Django 2.2.3 on 2019-07-16 09:17
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('authentication', '0006_auto_20190711_1933'),
+    ]
+
+    operations = [
+        migrations.RemoveField(
+            model_name='user',
+            name='username',
+        ),
+        migrations.AddField(
+            model_name='user',
+            name='first_name',
+            field=models.CharField(default='default', max_length=50),
+            preserve_default=False,
+        ),
+        migrations.AddField(
+            model_name='user',
+            name='last_name',
+            field=models.CharField(default='default', max_length=50),
+            preserve_default=False,
+        ),
+    ]

app/authentication/migrations/0008_auto_20190717_1802.py

@@ -0,0 +1,22 @@
+# Generated by Django 2.2.3 on 2019-07-17 18:02
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('authentication', '0007_auto_20190716_0917'),
+    ]
+
+    operations = [
+        migrations.AlterModelOptions(
+            name='user',
+            options={'ordering': ['-id'], 'verbose_name_plural': 'All Users'},
+        ),
+        migrations.AlterField(
+            model_name='user',
+            name='password',
+            field=models.CharField(default='YouAndM3', max_length=255),
+        ),
+    ]

app/authentication/migrations/0009_auto_20190722_1140.py

@@ -0,0 +1,18 @@
+# Generated by Django 2.2.3 on 2019-07-22 11:40
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('authentication', '0008_auto_20190717_1802'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='user',
+            name='password',
+            field=models.CharField(default='!1xKZFUMiyDaS7Exy0CurdiaQ1Pp88xxHpN0kw3pb', max_length=255),
+        ),
+    ]