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# Copyright 2019 Google, LLC.
#
# 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 run_imageproc_controller]
import base64
import json
import os
from flask import Flask, request
import image
app = Flask(__name__)
@app.route('/', methods=['POST'])
def index():
envelope = request.get_json()
if not envelope:
msg = 'no Pub/Sub message received'
print(f'error: {msg}')
return f'Bad Request: {msg}', 400
if not isinstance(envelope, dict) or 'message' not in envelope:
msg = 'invalid Pub/Sub message format'
print(f'error: {msg}')
return f'Bad Request: {msg}', 400
# Decode the Pub/Sub message.
pubsub_message = envelope['message']
if isinstance(pubsub_message, dict) and 'data' in pubsub_message:
try:
data = json.loads(
base64.b64decode(pubsub_message['data']).decode())
except Exception as e:
msg = ('Invalid Pub/Sub message: '
'data property is not valid base64 encoded JSON')
print(f'error: {e}')
return f'Bad Request: {msg}', 400
# Validate the message is a Cloud Storage event.
if not data["name"] or not data["bucket"]:
msg = ('Invalid Cloud Storage notification: '
'expected name and bucket properties')
print(f'error: {msg}')
return f'Bad Request: {msg}', 400
try:
image.blur_offensive_images(data)
return ('', 204)
except Exception as e:
print(f'error: {e}')
return ('', 500)
return ('', 500)
# [END run_imageproc_controller]
if __name__ == '__main__':
PORT = int(os.getenv('PORT')) if os.getenv('PORT') else 8080
# This is used when running locally. Gunicorn is used to run the
# application on Cloud Run. See entrypoint in Dockerfile.
app.run(host='127.0.0.1', port=PORT, debug=True)