Move bigquery 3lo sample on GAE to github.

Also, update it to use webapp2.

Author: Jerjou Cheng

bigquery/samples/appengine_auth/README.md

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+## Google App Engine accessing BigQuery using OAuth2
+
+This sample demonstrates [authenticating to BigQuery in App Engine using OAuth2](https://cloud.google.com/bigquery/authorization).
+
+### Setup
+
+* To install dependencies for this sample, run:
+
+    $ pip install -t lib -r requirements.txt
+
+* You must then update `main.py` and replace `<myproject_id>` with your project's
+  id.
+* You'll need a client id from your project - instructions
+  [here](https://cloud-dot-devsite.googleplex.com/bigquery/authorization#clientsecrets).
+  Once you've downloaded the client's json secret, copy it to the root directory
+  of this project, and rename it to `client_secrets.json`.
+* You can then run the sample on your development server:
+
+    $ dev_appserver.py .

bigquery/samples/appengine_auth/__init__.py

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+application: cloud-samples-tests
+version: 1
+runtime: python27
+api_version: 1
+threadsafe: yes
+
+handlers:
+- url: .*
+  script: main.app

bigquery/samples/appengine_auth/app.yaml

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+from google.appengine.ext import vendor
+
+# Add any libraries installed in the "lib" folder.
+vendor.add('lib')

bigquery/samples/appengine_auth/appengine_config.py

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+{"web":{
+  "client_id":"NOTE: this is just a placeholder for unit tests. See the README for what to replace this file with.",
+  "auth_uri":"TODO","token_uri":"TODO","auth_provider_x509_cert_url":"TODO","client_email":"","client_x509_cert_url":"","client_secret":"TODO","redirect_uris":["TODO","TODO"],"javascript_origins":["TODO","TODO"]}}

bigquery/samples/appengine_auth/client_secrets.json

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+# Copyright 2015 Google Inc. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# [START all]
+"""Sample appengine app demonstrating 3-legged oauth."""
+import json
+import os
+
+from googleapiclient.discovery import build
+
+from oauth2client.appengine import OAuth2DecoratorFromClientSecrets
+
+import webapp2
+
+
+# The project id whose datasets you'd like to list
+PROJECTID = '<myproject_id>'
+
+# Create the method decorator for oauth.
+decorator = OAuth2DecoratorFromClientSecrets(
+    os.path.join(os.path.dirname(__file__), 'client_secrets.json'),
+    scope='https://www.googleapis.com/auth/bigquery')
+
+# Create the bigquery api client
+service = build('bigquery', 'v2')
+
+
+class MainPage(webapp2.RequestHandler):
+
+    @decorator.oauth_required
+    def get(self):
+        """Lists the datasets in PROJECTID"""
+        http = decorator.http()
+        datasets = service.datasets()
+
+        response = datasets.list(projectId=PROJECTID).execute(http)
+
+        self.response.out.write('<h3>Datasets.list raw response:</h3>')
+        self.response.out.write('<pre>%s</pre>' %
+                                json.dumps(response, sort_keys=True, indent=4,
+                                           separators=(',', ': ')))
+
+
+# Create the webapp2 application
+app = webapp2.WSGIApplication([
+    ('/', MainPage),
+    # Create the endpoint to receive oauth flow callbacks
+    (decorator.callback_path, decorator.callback_handler())
+], debug=True)
+# [END all]

bigquery/samples/appengine_auth/main.py

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+google-api-python-client

bigquery/samples/appengine_auth/requirements.txt

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+{
+    "datasets": [
+        {
+            "datasetReference": {
+                "datasetId": "test_dataset_java",
+                "projectId": "cloud-samples-tests"
+            },
+            "id": "cloud-samples-tests:test_dataset_java",
+            "kind": "bigquery#dataset"
+        }
+    ],
+    "etag": "\"ZduQht1tG1odVP6IPm66xfuN2eI/HmGRlylAN_zCB6N4JDeX_XDO0R0\"",
+    "kind": "bigquery#datasetList"
+}

bigquery/tests/resources/datasets-list.json

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+# Copyright 2015 Google Inc. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import os
+import re
+
+from apiclient.http import HttpMock
+
+from bigquery.samples.appengine_auth import main
+
+import mock
+
+import tests
+
+import webapp2
+
+
+RESOURCE_PATH = os.path.join(
+    os.path.abspath(os.path.dirname(__file__)), 'resources')
+
+
+class TestAuthSample(tests.DatastoreTestbedCase, tests.CloudBaseTest):
+
+    def setUp(self):
+        tests.DatastoreTestbedCase.setUp(self)
+        tests.CloudBaseTest.setUp(self)
+
+        self.testbed.init_user_stub()
+
+    def loginUser(self, email='[email protected]', id='123', is_admin=False):
+        self.testbed.setup_env(
+            user_email=email,
+            user_id=id,
+            user_is_admin='1' if is_admin else '0',
+            overwrite=True)
+
+    def test_anonymous_get(self):
+        request = webapp2.Request.blank('/')
+        response = request.get_response(main.app)
+
+        # Should redirect to login
+        self.assertEqual(response.status_int, 302)
+        self.assertRegexpMatches(response.headers['Location'],
+                                 r'.*accounts.*Login.*')
+
+    def test_loggedin_get(self):
+        self.loginUser()
+
+        request = webapp2.Request.blank('/')
+        response = request.get_response(main.app)
+
+        # Should redirect to login
+        self.assertEqual(response.status_int, 302)
+        self.assertRegexpMatches(response.headers['Location'], r'.*oauth2.*')
+
+    @mock.patch.object(main.decorator, 'has_credentials', return_value=True)
+    def test_oauthed_get(self, *args):
+        self.loginUser()
+
+        request = webapp2.Request.blank('/')
+
+        mock_http = HttpMock(
+            os.path.join(RESOURCE_PATH, 'datasets-list.json'),
+            {'status': '200'})
+        with mock.patch.object(main.decorator, 'http', return_value=mock_http):
+            original_projectid = main.PROJECTID
+            try:
+                main.PROJECTID = self.constants['projectId']
+                response = request.get_response(main.app)
+            finally:
+                main.PROJECTID = original_projectid
+
+        # Should make the api call
+        self.assertEqual(response.status_int, 200)
+        self.assertRegexpMatches(
+            response.body,
+            re.compile(r'.*datasets.*datasetReference.*etag.*', re.DOTALL))