gistfile1.txt

# http://docs.rackspace.com/files/api/v1/cf-devguide/content/Create_TempURL-d1a444.html
# https://community.rackspace.com/developers/f/7/t/798
import hmac
from hashlib import sha1
from sys import argv
from time import time

if len(argv) != 5:
    print 'Syntax: <method> <url> <seconds> <key>'
    print 'Example: GET https://storage101.dfw1.clouddrive.com/v1/' \
        'MossoCloudFS_12345678-9abc-def0-1234-56789abcdef0/' \
        'container/my_cat.jpg 60 my_shared_secret_key'
else:
    method, url, seconds, key = argv[1:]
    method = method.upper()
    base_url, object_path = url.split('/v1/')
    object_path = '/v1/' + object_path
    seconds = int(seconds)
    expires = int(time() + seconds)
    hmac_body = '%s\n%s\n%s' % (method, expires, object_path)
    sig = hmac.new(key, hmac_body, sha1).hexdigest()
    print '%s%s?temp_url_sig=%sAMP;temp_url_expires=%s' % \
        (base_url, object_path, sig, expires)