68 lines
2.7 KiB
Python
Executable File
68 lines
2.7 KiB
Python
Executable File
#!/usr/bin/env python
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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# implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import hmac
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from hashlib import sha1
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from os.path import basename
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from sys import argv, exit
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from time import time
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if __name__ == '__main__':
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if len(argv) != 5:
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prog = basename(argv[0])
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print 'Syntax: %s <method> <seconds> <path> <key>' % prog
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print
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print 'Where:'
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print ' <method> The method to allow; GET for example.'
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print ' <seconds> The number of seconds from now to allow requests.'
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print ' <path> The full path to the resource.'
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print ' Example: /v1/AUTH_account/c/o'
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print ' <key> The X-Account-Meta-Temp-URL-Key for the account.'
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print
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print 'Example output:'
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print ' /v1/AUTH_account/c/o?temp_url_sig=34d49efc32fe6e3082e411e' \
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'eeb85bd8a&temp_url_expires=1323482948'
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print
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print 'This can be used to form a URL to give out for the access '
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print 'allowed. For example:'
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print ' echo https://swift-cluster.example.com`%s GET 60 ' \
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'/v1/AUTH_account/c/o mykey`' % prog
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print
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print 'Might output:'
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print ' https://swift-cluster.example.com/v1/AUTH_account/c/o?' \
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'temp_url_sig=34d49efc32fe6e3082e411eeeb85bd8a&' \
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'temp_url_expires=1323482948'
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exit(1)
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method, seconds, path, key = argv[1:]
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try:
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expires = int(time() + int(seconds))
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except ValueError:
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expires = 0
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if expires < 1:
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print 'Please use a positive <seconds> value.'
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exit(1)
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parts = path.split('/', 4)
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# Must be five parts, ['', 'v1', 'a', 'c', 'o'], must be a v1 request, have
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# account, container, and object values, and the object value can't just
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# have '/'s.
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if len(parts) != 5 or parts[0] or parts[1] != 'v1' or not parts[2] or \
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not parts[3] or not parts[4].strip('/'):
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print '<path> must point to an object.'
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print 'For example: /v1/account/container/object'
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exit(1)
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sig = hmac.new(key, '%s\n%s\n%s' % (method, expires, path),
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sha1).hexdigest()
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print '%s?temp_url_sig=%s&temp_url_expires=%s' % (path, sig, expires)
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