1 files changed, 118 insertions, 0 deletions
diff --git a/src/pixelated/resources/__init__.py b/src/pixelated/resources/__init__.py
new file mode 100644
index 00000000..e3ba7105
--- /dev/null
+++ b/src/pixelated/resources/__init__.py
@@ -0,0 +1,118 @@
+#
+# Copyright (c) 2014 ThoughtWorks, Inc.
+#
+# Pixelated is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# Pixelated is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with Pixelated. If not, see <http://www.gnu.org/licenses/>.
+
+import json
+import logging
+
+from twisted.web.http import UNAUTHORIZED
+from twisted.web.resource import Resource
+
+# from pixelated.resources.login_resource import LoginResource
+from pixelated.resources.session import IPixelatedSession
+
+from twisted.web.http import INTERNAL_SERVER_ERROR
+log = logging.getLogger(__name__)
+
+
+class SetEncoder(json.JSONEncoder):
+
+    def default(self, obj):
+        if isinstance(obj, set):
+            return list(obj)
+        return super(SetEncoder, self).default(obj)
+
+
+def respond_json(entity, request, status_code=200):
+    json_response = json.dumps(entity, cls=SetEncoder)
+    request.responseHeaders.addRawHeader(b"content-type", b"application/json")
+    request.code = status_code
+    return json_response
+
+
+def respond_json_deferred(entity, request, status_code=200):
+    json_response = json.dumps(entity, cls=SetEncoder)
+    request.responseHeaders.addRawHeader(b"content-type", b"application/json")
+    request.code = status_code
+    request.write(json_response)
+    request.finish()
+
+
+class GenericDeferredErrorHandler(object):
+
+    @classmethod
+    def generic_error_handling(cls, e, request):
+        log.error(e)
+        request.setResponseCode(INTERNAL_SERVER_ERROR)
+        request.write('Something went wrong!')
+        request.finish()
+
+
+class BaseResource(Resource, GenericDeferredErrorHandler):
+
+    def __init__(self, services_factory):
+        Resource.__init__(self)
+        self._services_factory = services_factory
+
+    def _get_user_id_from_request(self, request):
+        if self._services_factory.mode.is_single_user:
+            return None  # it doesn't matter
+        session = self.get_session(request)
+        if session.is_logged_in():
+            return session.user_uuid
+        raise ValueError('Not logged in')
+
+    def is_logged_in(self, request):
+        session = self.get_session(request)
+        return session.is_logged_in() and self._services_factory.is_logged_in(session.user_uuid)
+
+    def get_session(self, request):
+        return IPixelatedSession(request.getSession())
+
+    def _services(self, request):
+        user_id = self._get_user_id_from_request(request)
+        return self._services_factory.services(user_id)
+
+    def _service(self, request, attribute):
+        return getattr(self._services(request), attribute)
+
+    def keymanager(self, request):
+        return self._service(request, 'keymanager')
+
+    def mail_service(self, request):
+        return self._service(request, 'mail_service')
+
+    def search_engine(self, request):
+        return self._service(request, 'search_engine')
+
+    def draft_service(self, request):
+        return self._service(request, 'draft_service')
+
+    def feedback_service(self, request):
+        return self._service(request, 'feedback_service')
+
+
+class UnAuthorizedResource(Resource):
+
+    def __init__(self):
+        Resource.__init__(self)
+
+    def render_GET(self, request):
+        request.setResponseCode(UNAUTHORIZED)
+        return "Unauthorized!"
+
+    def render_POST(self, request):
+        request.setResponseCode(UNAUTHORIZED)
+        return "Unauthorized!"