Add per-user token-based API authentication.

babybuddy/models.py

@@ -7,6 +7,8 @@ from django.db.models.signals import post_save
 from django.dispatch import receiver
 from django.utils.timezone import timedelta
 
+from rest_framework.authtoken.models import Token
+
 
 class Settings(models.Model):
     user = models.OneToOneField(User, on_delete=models.CASCADE)
@@ -30,6 +32,16 @@ class Settings(models.Model):
     def __str__(self):
         return '{}\'s Settings'.format(self.user)
 
+    def api_key(self, reset=False):
+        """
+        Get or create an API key for the associated user.
+        :param reset: If True, delete the existing key and create a new one.
+        :return: The user's API key.
+        """
+        if reset:
+            Token.objects.get(user=self.user).delete()
+        return Token.objects.get_or_create(user=self.user)[0]
+
     @property
     def dashboard_refresh_rate_milliseconds(self):
         """

babybuddy/settings/base.py

@@ -35,6 +35,7 @@ INSTALLED_APPS = [
 
     'django_filters',
     'rest_framework',
+    'rest_framework.authtoken',
     'widget_tweaks',
     'easy_thumbnails',
 
@@ -144,6 +145,10 @@ WHITENOISE_ROOT = os.path.join(BASE_DIR, 'static', 'root')
 # http://www.django-rest-framework.org/#
 
 REST_FRAMEWORK = {
+    'DEFAULT_AUTHENTICATION_CLASSES': [
+        'rest_framework.authentication.SessionAuthentication',
+        'rest_framework.authentication.TokenAuthentication',
+    ],
     'DEFAULT_FILTER_BACKENDS': [
         'django_filters.rest_framework.DjangoFilterBackend',
     ],

babybuddy/templates/babybuddy/user_settings_form.html

@@ -50,6 +50,16 @@
                     {% endwith %}
                 </div>
             </fieldset>
+            <fieldset>
+                <legend>API</legend>
+                <div class="form-group row">
+                    <label for="id_email" class="col-sm-2 col-form-label">Key</label>
+                    <div class="col-sm-10">
+                        <samp>{{ user.settings.api_key }}</samp>
+                        <a class="btn btn-xs btn-danger" href="{% url 'babybuddy:user-reset-api-key' %}">Regenerate</a>
+                    </div>
+                </div>
+            </fieldset>
             <button type="submit" class="btn btn-primary">Submit</button>
         </form>
     </div>

babybuddy/urls.py

@@ -17,10 +17,13 @@ app_patterns = [
 
     url(r'^$', views.RootRouter.as_view(), name='root-router'),
     url(r'^welcome/$', views.Welcome.as_view(), name='welcome'),
-    url(r'^user/settings/$', views.UserSettings.as_view(),
+
-        name='user-settings'),
     url(r'^user/password/$', views.UserPassword.as_view(),
         name='user-password'),
+    url(r'^user/reset-api-key/$', views.UserResetAPIKey.as_view(),
+        name='user-reset-api-key'),
+    url(r'^user/settings/$', views.UserSettings.as_view(),
+        name='user-settings'),
 ]
 
 urlpatterns = [

babybuddy/views.py

@@ -53,6 +53,15 @@ class UserPassword(LoginRequiredMixin, View):
         return render(request, self.template_name, {'form': form})
 
 
+class UserResetAPIKey(LoginRequiredMixin, View):
+    """
+    Resets the API key of the logged in user.
+    """
+    def get(self, request):
+        request.user.settings.api_key(reset=True)
+        return redirect('babybuddy:user-settings')
+
+
 class UserSettings(LoginRequiredMixin, View):
     """
     Handles both the User and Settings models.