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#!/usr/bin/env python
# Copyright (c) 2017 Intel Corporation
#
# 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.
DOCUMENTATION = '''
---
module: fetch_url_and_verify
short_description: Fetch image and verify against a SHA256SUM URL
description:
- Download a URL and check it against a remote SHA256SUMS file
options:
url: Image URL
image_dest: Image filename
sha256_url: SHA256SUMS URL
dest: python file mode (w, wb, a, ab)
retries: fetch retries
'''
def main():
module = AnsibleModule(
argument_spec={
'url': {'required': True, 'type': 'str'},
'sha256url': {'required': True, 'type': 'str'},
'dest': {'required': True, 'type': 'path'},
'retries': {'required': False, 'type': 'int', 'default': 3},
}
)
params = module.params
url = params['url']
dest = params['dest']
sha256url = params['sha256url']
retries = params['retries']
image_dir, image_filename = os.path.split(dest)
rc, stdout, stderr = module.run_command(['curl', '-sS', sha256url])
if rc == 0 and stdout:
sha256line = next(
(l for l in stdout.splitlines() if image_filename in l), "")
if not sha256line:
module.fail_json(
msg="Unable to find SHA256SUMS line for file {}".format(
image_filename))
rc = \
module.run_command(['sha256sum', '-c'], data=sha256line, cwd=image_dir)[0]
if rc == 0:
sha256sum = sha256line.split()[0]
module.exit_json(changed=False, dest=dest, url=url,
sha256sum=sha256sum)
for retry in range(retries):
curl_rc, stdout, stderr = module.run_command(
['curl', '-sS', '-o', dest, url], cwd=image_dir)
if curl_rc == 0:
sha256_rc, stdout, stderr = module.run_command(['sha256sum', '-c'],
data=sha256line,
cwd=image_dir)
if sha256_rc == 0:
module.exit_json(changed=True)
module.fail_json(msg="Unable to download {}".format(url), stdout=stdout,
stderr=stderr)
# <<INCLUDE_ANSIBLE_MODULE_COMMON>>
from ansible.module_utils.basic import * # noqa
if __name__ == '__main__':
main()
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