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# Copyright (C) 2017 Google Inc.
#
# 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.
"""Command-line tool for obtaining authorization and credentials from a user.
This tool uses the OAuth 2.0 Authorization Code grant as described in
`section 1.3.1 of RFC6749`_ and implemeted by
:class:`google_auth_oauthlib.flow.Flow`.
This tool is intended for assist developers in obtaining credentials
for testing applications where it may not be possible or easy to run a
complete OAuth 2.0 authorization flow, especially in the case of code
samples or embedded devices without input / display capabilities.
This is not intended for production use where a combination of
companion and on-device applications should complete the OAuth 2.0
authorization flow to get authorization from the users.
.. _section 1.3.1 of RFC6749: https://tools.ietf.org/html/rfc6749#section-1.3.1
"""
import json
import os
import os.path
import click
import google_auth_oauthlib.flow
APP_NAME = "google-oauthlib-tool"
DEFAULT_CREDENTIALS_FILENAME = "credentials.json"
@click.command()
@click.option(
"--client-secrets",
metavar="<client_secret_json_file>",
required=True,
help="Path to OAuth2 client secret JSON file.",
)
@click.option(
"--scope",
multiple=True,
metavar="<oauth2 scope>",
required=True,
help="API scopes to authorize access for.",
)
@click.option(
"--save",
is_flag=True,
metavar="<save_mode>",
show_default=True,
default=False,
help="Save the credentials to file.",
)
@click.option(
"--credentials",
metavar="<oauth2_credentials>",
show_default=True,
default=os.path.join(click.get_app_dir(APP_NAME), DEFAULT_CREDENTIALS_FILENAME),
help="Path to store OAuth2 credentials.",
)
def main(client_secrets, scope, save, credentials):
"""Command-line tool for obtaining authorization and credentials from a user.
This tool uses the OAuth 2.0 Authorization Code grant as described
in section 1.3.1 of RFC6749:
https://tools.ietf.org/html/rfc6749#section-1.3.1
This tool is intended for assist developers in obtaining credentials
for testing applications or samples.
This is not intended for production use where a combination of
companion and on-device applications should complete the OAuth 2.0
authorization flow to get authorization from the users.
"""
flow = google_auth_oauthlib.flow.InstalledAppFlow.from_client_secrets_file(
client_secrets, scopes=scope
)
creds = flow.run_local_server()
creds_data = {
"token": creds.token,
"refresh_token": creds.refresh_token,
"token_uri": creds.token_uri,
"client_id": creds.client_id,
"client_secret": creds.client_secret,
"scopes": creds.scopes,
}
if save:
del creds_data["token"]
config_path = os.path.dirname(credentials)
if config_path and not os.path.isdir(config_path):
os.makedirs(config_path)
with open(credentials, "w") as outfile:
json.dump(creds_data, outfile)
click.echo("credentials saved: %s" % credentials)
else:
click.echo(json.dumps(creds_data))
if __name__ == "__main__":
# pylint doesn't realize that click has changed the function signature.
main() # pylint: disable=no-value-for-parameter