swift3_example_get.py

swift3_example_get.py

# 1. Created a simple object and uploaded it:
# echo "hello world" > obj
# swift upload cont obj
# 2. Get the S3 endpoint:
# openstack endpoint list
# use the ID for the s3 entry in the next command
# openstack endpoint show b7eee8134bc747af8aee553c94334ebc
# 3. Create EC creds:
# openstack ec2 credentials create
# you need access and secret

import base64, hashlib, hmac, time
from urllib import urlencode, quote_plus
from datetime import datetime, timedelta

base_url = 'http://10.0.2.15:8080'

path = '/cont/obj'
access = '0fb30cd628ff406592b8363d909a8465'
secret = '5db56362698e4316aac9cf7bcfe989bf'

expires = (datetime.utcnow() + timedelta(hours=1000)).strftime("%s")
string_to_sign = "GET\n\n\n%s\n%s" % (expires, path)

signature = hmac.new(key=secret, msg=string_to_sign, digestmod=hashlib.sha1).digest()

signature = base64.encodestring(signature).strip()

urlencoded_signature = quote_plus(signature)
url_string = "&Signature=%s" % urlencoded_signature

print "%s%s?AWSAccessKeyId=%s&Signature=%s&Expires=%s" % (base_url, path, access, urlencoded_signature, expires)
# Use curl and the given URL to access it