# Copyright 2018 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 gae_python37_app]
from flask import Flask
from flask import request, redirect
from urllib.parse import urlparse

# If `entrypoint` is not defined in app.yaml, App Engine will look for an app
# called `app` in `main.py`.
app = Flask(__name__)


@app.route('/<p>')
def handler(p):
    """ Redirect XXX.or.tools/YYY to https://XXX.openroad.tools/YYY. """
    u = urlparse(request.url)
    subdomain, host = u.netloc.split('.', 1)
    u = u._replace(
        scheme = 'https',
        netloc = "{}.{}".format(subdomain, "openroad.tools"),
    )
    return redirect(u.geturl(), code=301)


if __name__ == '__main__':
    # This is used when running locally only. When deploying to Google App
    # Engine, a webserver process such as Gunicorn will serve the app. This
    # can be configured by adding an `entrypoint` to app.yaml.
    app.run(host='127.0.0.1', port=8080, debug=True)
# [END gae_python37_app]
