Refs #314 -- Read-only REST API (#513)

* initial commit

* API auth

* Hierarchical URLs

* Add session auth

* Strong hierarchy

* Add filters

* Add i18n fields, questions

* More viewsets and serializers

* Ticket download

* Add OrderPosition serializer

* View-level permissions

* More tests

* More tests

* Add basic API docs

* Add REST API to docs frontpage

* Tests for order endpoints

* Add invoice tests

* Voucher and waitinglist tests

* Doc draft

* order docs

* Docs on all viewsets

* Disable DRF docs, style sphinx, style browsable API

* Fix tests

* deprecated imports

* Test foo

* Attendee names

* Fix migration problems

* Remove browsable API, plugin integration

* Doc fixes

src/pretix/settings.py

@@ -189,6 +189,9 @@ INSTALLED_APPS = [
     'pretix.control',
     'pretix.presale',
     'pretix.multidomain',
+    'pretix.api',
+    'rest_framework',
+    'django_filters',
     'compressor',
     'bootstrap3',
     'djangoformsetjs',
@@ -233,6 +236,23 @@ if config.has_option('sentry', 'dsn'):
     }
 
 
+REST_FRAMEWORK = {
+    'DEFAULT_PERMISSION_CLASSES': [
+        'pretix.api.auth.permission.EventPermission',
+    ],
+    'DEFAULT_VERSIONING_CLASS': 'rest_framework.versioning.NamespaceVersioning',
+    'PAGE_SIZE': 50,
+    'DEFAULT_AUTHENTICATION_CLASSES': (
+        'pretix.api.auth.token.TeamTokenAuthentication',
+        'rest_framework.authentication.SessionAuthentication',
+    ),
+    'DEFAULT_RENDERER_CLASSES': (
+        'rest_framework.renderers.JSONRenderer',
+    ),
+    'UNICODE_JSON': False
+}
+
+
 CORE_MODULES = {
     ("pretix", "base"),
     ("pretix", "presale"),