feat(social-login): Enable social login

Currently, the only way a user gains access to the system is
if they register/login using the login and register form
which is inconvinient since the user has to remember their
credentials.

This commit integrates the ability to login using social
media accounts ie. twitter, facebook and google which
improves the UX.

[Delivers #157731629]

requirements.txt

@@ -20,11 +20,11 @@ django-bower
 invoke
 requests
 psycopg2-binary
-coverage
 whitenoise
 gunicorn
 dj-database-url==0.4.2
 dj-static==0.0.6
+social-auth-app-django
 
 # REST API
 djangorestframework>=3.2,<3.3
@@ -36,4 +36,3 @@ django-cors-headers
 six
 autopep8
 flake8
-psycopg2-binary

settings.py

@@ -16,11 +16,11 @@
 DATABASES = {
     'default': {
         'ENGINE': 'django.db.backends.postgresql',
-        'NAME': os.environ.get('WG_NAME') or "test_wger",
+        'NAME': os.environ.get('WG_NAME') or 'test_wger',
         'USER': os.environ.get('WG_USER') or 'postgres',
         'HOST': os.environ.get('WG_HOST') or 'localhost',
         'PASSWORD': os.environ.get('WG_PASSWORD') or '',
-        'PORT': os.environ.get('WG_PORT') or '',
+        'PORT': os.environ.get('WG_PORT') or '5432',
     }
 }
 
@@ -46,7 +46,7 @@
 ALLOWED_HOSTS = '*'
 
 # This might be a good idea if you setup memcached
-# SESSION_ENGINE = "django.contrib.sessions.backends.cache"
+#SESSION_ENGINE = "django.contrib.sessions.backends.cache"
 
 # Configure a real backend in production
 if DEBUG:
@@ -56,4 +56,10 @@
 WGER_SETTINGS['EMAIL_FROM'] = 'wger Workout Manager <wger@example.com>'
 
 # Your twitter handle, if you have one for this instance.
-# WGER_SETTINGS['TWITTER'] = ''
+#WGER_SETTINGS['TWITTER'] = ''
+
+try:
+    from local_settings import *
+except ImportError:
+    pass
+

setup.cfg

@@ -2,12 +2,12 @@
 universal = 1
 
 [pep8]
-exclude = urls.py,tasks.py,*migrations*,*bower_components*
+exclude = urls.py,tasks.py,*migrations*,*bower_components*,*env*,
 max-line-length = 100
 ignore = W503
 
 # Flake8 configuration settings
 [flake8]
-exclude = .git,__pycache__,urls.py,tasks.py,generator.py,*migrations*,*bower_components*,*docs*,__*__,
+exclude = .git,__pycache__,urls.py,tasks.py,generator.py,*migrations*,*bower_components*,*docs*,*env*,__*__,
 max-line-length = 100
 ignore = F401,W503

wger/core/templates/user/login.html

@@ -14,6 +14,11 @@
     {% trans 'Login' as submit_text %}
     {% render_form_fields form submit_text %}
 </form>
+<hr/>
+<h3 class="text text-primary text-center">Login/Register with social apps</h3>
+<div class="row text-center">
+    <a href="{% url 'social:begin' 'facebook' %}"><i class="fa fa-4x fa-facebook"></i></a>&nbsp;&nbsp;<a href="{% url 'social:begin' 'twitter' %}"><i class="fa fa-4x fa-twitter text-info"></i></a>&nbsp;&nbsp;<a href="{% url 'social:begin' 'google-oauth2' %}"><i class="fa fa-4x fa-google text-danger"></i></a>
+</div>
 {% endblock %}
 
 

wger/exercises/api/serializers.py

@@ -91,3 +91,4 @@ class MuscleSerializer(serializers.ModelSerializer):
     '''
     class Meta:
         model = Muscle
+

wger/exercises/api/views.py

@@ -1,3 +1,4 @@
+
 # -*- coding: utf-8 -*-
 
 # This file is part of wger Workout Manager.
@@ -90,7 +91,6 @@ class ExercisesViewSet(viewsets.ReadOnlyModelViewSet):
 def search(request):
     '''
     Searches for exercises.
-
     This format is currently used by the exercise search autocompleter
     '''
     q = request.GET.get('term', None)
@@ -216,3 +216,4 @@ class MuscleViewSet(viewsets.ReadOnlyModelViewSet):
     ordering_fields = '__all__'
     filter_fields = ('name',
                      'is_front')
+

wger/exercises/tests/test_exercise.py

@@ -1,3 +1,4 @@
+
 # This file is part of wger Workout Manager.
 #
 # wger Workout Manager is free software: you can redistribute it and/or modify
@@ -552,3 +553,4 @@ def test_exercise_read_only(self):
         response = client.post('/api/v2/exercises/', data=data)
         # Test for method not allowed
         self.assertEqual(response.status_code, 405)
+

wger/settings_global.py

@@ -31,13 +31,25 @@
 BASE_DIR = os.path.abspath(os.path.dirname(__file__))
 SITE_ROOT = os.path.realpath(os.path.dirname(__file__))
 
+
 #
 # Application definition
 #
 SITE_ID = 1
 ROOT_URLCONF = 'wger.urls'
 WSGI_APPLICATION = 'wger.wsgi.application'
 
+# twitter keys
+SOCIAL_AUTH_TWITTER_KEY = os.environ.get('SOCIAL_AUTH_TWITTER_KEY')
+SOCIAL_AUTH_TWITTER_SECRET = os.environ.get('SOCIAL_AUTH_TWITTER_SECRET')
+SOCIAL_AUTH_LOGIN_REDIRECT_URL = '/'
+# facebook keys
+SOCIAL_AUTH_FACEBOOK_KEY = os.environ.get('SOCIAL_AUTH_FACEBOOK_KEY')
+SOCIAL_AUTH_FACEBOOK_SECRET = os.environ.get('SOCIAL_AUTH_FACEBOOK_SECRET')
+# google keys
+SOCIAL_AUTH_GOOGLE_OAUTH2_KEY = os.environ.get('SOCIAL_AUTH_GOOGLE_OAUTH_KEY')
+SOCIAL_AUTH_GOOGLE_OAUTH2_SECRET = os.environ.get('SOCIAL_AUTH_GOOGLE_OAUTH_SECRET')
+
 INSTALLED_APPS = (
     'django.contrib.auth',
     'django.contrib.contenttypes',
@@ -89,6 +101,9 @@
 
     # django-bower for installing bower packages
     'djangobower',
+
+    # social login
+    'social_django',
 )
 
 # added list of external libraries to be installed by bower
@@ -126,14 +141,22 @@
     'django.middleware.clickjacking.XFrameOptionsMiddleware',
     'django.middleware.locale.LocaleMiddleware',
 
+
+    # social login
+    'social_django.middleware.SocialAuthExceptionMiddleware',
+
     # Django mobile
     'django_mobile.middleware.MobileDetectionMiddleware',
     'django_mobile.middleware.SetFlavourMiddleware',
 )
 
 AUTHENTICATION_BACKENDS = (
     'django.contrib.auth.backends.ModelBackend',
-    'wger.utils.helpers.EmailAuthBackend'
+    'wger.utils.helpers.EmailAuthBackend',
+    # social login
+    'social_core.backends.twitter.TwitterOAuth',
+    'social_core.backends.facebook.FacebookOAuth2',
+    'social_core.backends.google.GoogleOAuth2',
 )
 
 TEMPLATES = [
@@ -157,7 +180,11 @@
                 'django_mobile.context_processors.flavour',
 
                 # Breadcrumbs
-                'django.template.context_processors.request'
+                'django.template.context_processors.request',
+
+                # social login
+                'social_django.context_processors.backends',
+                'social_django.context_processors.login_redirect',
             ],
             'loaders': [
                 # Django mobile
@@ -385,3 +412,4 @@
 
 if 'DATABASE_URL' in os.environ:
     DATABASES = {'default': dj_database_url.config()}
+

wger/urls.py

@@ -145,6 +145,7 @@
     url(r'config/', include('wger.config.urls', namespace='config', app_name='config')),
     url(r'gym/', include('wger.gym.urls', namespace='gym', app_name='gym')),
     url(r'email/', include('wger.email.urls', namespace='email')),
+    url(r'^oauth/', include('social_django.urls', namespace='social')),
     url(r'^sitemap\.xml$',
         sitemap,
         {'sitemaps': sitemaps},
@@ -177,3 +178,4 @@
 #
 if settings.DEBUG:
     urlpatterns += static(settings.MEDIA_URL, document_root=settings.MEDIA_ROOT)
+