add in social auth, with yahoo, google and openid

requirements/project.txt

@@ -9,6 +9,7 @@
 PIL==1.1.7
 easy-thumbnails==1.0-alpha-21
 html5lib==0.95
+django-social-auth==0.7.0
 
 gondor==1.1
 psycopg2==2.4.5

symposion/settings.py

@@ -4,6 +4,9 @@
 import os.path
 import posixpath
 
+from django.core.urlresolvers import reverse_lazy
+
+
 PROJECT_ROOT = os.path.abspath(os.path.join(os.path.dirname(__file__), os.pardir))
 PACKAGE_ROOT = os.path.abspath(os.path.dirname(__file__))
 
@@ -125,6 +128,7 @@
     "django.core.context_processors.tz",
     "django.core.context_processors.request",
     "django.contrib.messages.context_processors.messages",
+    "social_auth.context_processors.social_auth_backends",
     "pinax_utils.context_processors.settings",
     "account.context_processors.account",
 ]
@@ -159,6 +163,7 @@
     "taggit",
     "reversion",
     "biblion",
+    "social_auth",
 
     # symposion
     "symposion.about",
@@ -189,16 +194,36 @@
 ACCOUNT_CREATE_ON_SAVE = True
 
 AUTHENTICATION_BACKENDS = [
+
+    # Social Auth Backends
+    "social_auth.backends.google.GoogleBackend",
+    "social_auth.backends.yahoo.YahooBackend",
+    "social_auth.backends.OpenIDBackend",
+
+    # Django User Accounts
     "account.auth_backends.EmailAuthenticationBackend",
 ]
 
-LOGIN_URL = "/account/login/" # @@@ any way this can be a url name?
+SOCIAL_AUTH_PIPELINE = [
+    "social_auth.backends.pipeline.social.social_auth_user",
+    "social_auth.backends.pipeline.user.get_username",
+    "symposion.social_auth.pipeline.user.create_user",
+    "social_auth.backends.pipeline.social.associate_user",
+    "social_auth.backends.pipeline.social.load_extra_data",
+    "social_auth.backends.pipeline.user.update_user_details",
+]
+
+LOGIN_URL = reverse_lazy("account_login")
 
 ACCOUNT_SIGNUP_REDIRECT_URL = "dashboard"
 ACCOUNT_LOGIN_REDIRECT_URL = "dashboard"
 ACCOUNT_LOGOUT_REDIRECT_URL = "home"
 ACCOUNT_USER_DISPLAY = lambda user: user.email
 
+SOCIAL_AUTH_LOGIN_REDIRECT_URL = "/dashboard/"
+SOCIAL_AUTH_NEW_USER_REDIRECT_URL = "/dashboard/"
+SOCIAL_AUTH_ASSOCIATE_BY_MAIL = False
+
 EMAIL_CONFIRMATION_DAYS = 2
 EMAIL_DEBUG = DEBUG
 

symposion/social_auth/pipeline/user.py

@@ -0,0 +1,41 @@
+from account.models import Account, EmailAddress
+
+from social_auth.models import User
+from social_auth.backends.exceptions import AuthException
+from social_auth.backends.pipeline import warn_setting
+from social_auth.utils import setting
+from social_auth.signals import socialauth_not_registered
+
+
+def create_user(backend, details, response, uid, username, user=None, *args, **kwargs):
+    """Create user. Depends on get_username pipeline."""
+    if user:
+        return {"user": user}
+    if not username:
+        return None
+
+    warn_setting("SOCIAL_AUTH_CREATE_USERS", "create_user")
+
+    if not setting("SOCIAL_AUTH_CREATE_USERS", True):
+        # Send signal for cases where tracking failed registering is useful.
+        socialauth_not_registered.send(sender=backend.__class__, uid=uid, response=response, details=details)
+        return None
+
+    email = details.get("email")
+
+    if EmailAddress.objects.filter(email=email):
+        # TODO - Make this fail gracefully back to sign up
+        message = (
+            "The email address provided by the external "
+            "service is already associated with another account. Please "
+            "log in to that account first and associate your account."
+        )
+        raise AuthException(backend, message)
+    else:
+        user = User.objects.create_user(username=username, email=email)
+        EmailAddress.objects.add_email(user, user.email, primary=True)
+
+    return {
+        "user": user,
+        "is_new": True
+    }

symposion/social_auth/urls.py

@@ -0,0 +1,7 @@
+from django.conf.urls import patterns, url
+
+from symposion.social_auth.views import SocialAuths
+
+urlpatterns = patterns("",
+    url(r"^associations/$", SocialAuths.as_view(), name="social_auth_associations"),
+)

symposion/social_auth/views.py

@@ -0,0 +1,44 @@
+from django.http import HttpResponseRedirect
+from django.views.generic.list import ListView
+from django.utils.translation import ugettext as _
+
+from django.contrib import messages
+from django.contrib.auth import REDIRECT_FIELD_NAME
+from django.contrib.auth.decorators import login_required
+
+from account.mixins import LoginRequiredMixin
+from social_auth.decorators import dsa_view
+from social_auth.models import UserSocialAuth
+from social_auth.utils import backend_setting
+from social_auth.views import DEFAULT_REDIRECT
+
+
+class SocialAuths(LoginRequiredMixin, ListView):
+
+    model = UserSocialAuth
+
+    def get_queryset(self):
+        qs = super(SocialAuths, self).get_queryset()
+        qs = qs.filter(user=self.request.user)
+        return qs
+
+
+@login_required
+@dsa_view()
+def disconnect(request, backend, association_id=None):
+    associated = request.user.social_auth.count()
+    url = request.REQUEST.get(REDIRECT_FIELD_NAME, '') or backend_setting(backend, 'SOCIAL_AUTH_DISCONNECT_REDIRECT_URL') or DEFAULT_REDIRECT
+
+    if not request.user.has_usable_password() and associated <= 1:
+        messages.error(request, _("Cannot remove the only Social Account without first setting a Password or adding another Social Account."))
+        return HttpResponseRedirect(url)
+
+    usa = request.user.social_auth.get(pk=association_id)
+
+    backend.disconnect(request.user, association_id)
+    messages.success(request, _("Removed the %(provider)s account '%(uid)s'.") % {
+        "provider": usa.provider,
+        "uid": usa.extra_data.get("display", usa.uid) if usa.extra_data is not None else usa.uid,
+    })
+
+    return HttpResponseRedirect(url)

symposion/templates/account/_openid_sidebar.html

@@ -0,0 +1,19 @@
+{% load i18n %}
+{% load url from future %}
+
+<h4>{% trans "Sign in with another account:" %}</h4>
+<ul>
+    <li>
+        <a href="{% url "socialauth_begin" "google" %}">Sign-in using Google</a>
+    </li>
+    <li>
+        <a href="{% url "socialauth_begin" "yahoo" %}">Sign-in using Yahoo!</a>
+    </li>
+</ul>
+
+<h4>{% trans "Sign in with OpenID" %}</h4>
+<form action="{% url "socialauth_begin" "openid" %}" method="POST" autocapitalize="off" class"form-inline">
+    {% csrf_token %}
+    <input class="openid" type="text" name="openid_identifier" placeholder="Your OpenID Identifier" />
+    <input type="submit" value="{% trans "Sign in" %}" class="btn btn-primary" />
+</form>

symposion/templates/account/login.html

@@ -0,0 +1,27 @@
+{% extends "site_base.html" %}
+
+{% load url from future %}
+{% load i18n %}
+{% load bootstrap_tags %}
+
+{% block head_title %}{% trans "Log in" %}{% endblock %}
+
+{% block body %}
+
+            <form method="POST" action="{% url "account_login" %}" autocapitalize="off" class="form-horizontal"{% if form.is_multipart %} enctype="multipart/form-data"{% endif %}>
+                <legend>{% trans "Log in to an existing account" %}</legend>
+                {% csrf_token %}
+                {{ form|as_bootstrap }}
+                {% if redirect_field_value %}
+                    <input type="hidden" name="{{ redirect_field_name }}" value="{{ redirect_field_value }}" />
+                {% endif %}
+                <div class="form-actions">
+                    <a href="{% url "account_password_reset" %}" class="btn">{% trans "Forgot your password?" %}</a>
+                    <button type="submit" class="btn btn-primary">{% trans "Log in" %}</button>
+                </div>
+            </form>
+{% endblock %}
+
+{% block sidebar %}
+    {% include "account/_openid_sidebar.html" %}
+{% endblock %}

symposion/templates/account/signup.html

@@ -0,0 +1,27 @@
+{% extends "site_base.html" %}
+
+{% load url from future %}
+{% load i18n %}
+{% load bootstrap_tags %}
+
+{% block head_title %}{% trans "Create an account" %}{% endblock %}
+
+{% block body %}
+    <form id="signup_form" method="post" action="{% url "account_signup" %}" autocapitalize="off" class="form-horizontal"{% if form.is_multipart %} enctype="multipart/form-data"{% endif %}>
+        <legend>{% trans "Create a new account" %}</legend>
+        <fieldset>
+            {% csrf_token %}
+            {{ form|as_bootstrap }}
+            {% if redirect_field_value %}
+                <input type="hidden" name="{{ redirect_field_name }}" value="{{ redirect_field_value }}" />
+            {% endif %}
+            <div class="form-actions">
+                <button type="submit" class="btn btn-primary">{% trans "Create Account" %}</button>
+            </div>
+        </fieldset>
+    </form>
+{% endblock %}
+
+{% block sidebar %}
+    {% include "account/_openid_sidebar.html" %}
+{% endblock %}

symposion/urls.py

@@ -20,6 +20,8 @@
     url(r"^about/", include("symposion.about.urls")),
     url(r"^account/signup/$", symposion.views.SignupView.as_view(), name="account_signup"),
     url(r"^account/login/$", symposion.views.LoginView.as_view(), name="account_login"),
+    url(r"^account/social/", include("social_auth.urls")),
+    url(r"^account/associations/", include("symposion.social_auth.urls")),
     url(r"^account/", include("account.urls")),
     url(r"^dashboard/", symposion.views.dashboard, name="dashboard"),
     url(r"^markitup/", include("markitup.urls")),