Attached is a short script I hacked together from details at
http://tomatohater.com/2010/10/22/cloudfront-object-invalidation-python/
I'd love to see that functionality in s3cmd, and I am working to learn
more about s3cmd in hopes of providing a patch to do that. In the
mean time if anyone is looking for a quick way to invalidate a file(s)
you can use the attached.
-Jim P.
#!/usr/bin/python
##
import urllib2
import base64
import datetime
import hmac
import hashlib
from xml.dom import minidom
import sys
AWS_CF_DISTRIBUTION_ID = "<your_dist_id>"
AWS_ACCESS_KEY = "<your_access_key>"
AWS_SECRET_ACCESS_KEY = "<your_secret_key>"
host = 'cloudfront.amazonaws.com'
path = '/2010-11-01/distribution/%s/invalidation' % AWS_CF_DISTRIBUTION_ID
def get_aws_auth():
date = datetime.datetime.utcnow().strftime('%a, %d %b %Y %H:%M:%S GMT')
auth = 'AWS %s:%s' % (
AWS_ACCESS_KEY,
base64.b64encode(
hmac.new(
AWS_SECRET_ACCESS_KEY.encode('utf-8'),
date.encode('utf-8'),
hashlib.sha1
).digest()
)
)
return date, auth
if len(sys.argv) < 2:
date, auth = get_aws_auth()
# define required http headers
headers = {
'Host': host,
'Authorization' : auth,
'Date': date,
}
# send REST request and print results
request_url = 'https://%s%s' % (host, path)
req = urllib2.Request(request_url, headers=headers)
response = urllib2.urlopen(req)
xml = response.read()
print minidom.parseString(xml).toprettyxml(indent=' '*4)
sys.exit()
# create authentication signature
date, auth = get_aws_auth()
# create xml data to post
data = ['<?xml version="1.0" encoding="UTF-8"?>']
data.append('<InvalidationBatch>')
data.append('%s' % ''.join(['<Path>/%s</Path>' % f for f in sys.argv[1:]]))
data.append('<CallerReference>%s</CallerReference>' % date)
data.append('</InvalidationBatch>')
data = ''.join(data)
# define required http headers
headers = {
'Host': host,
'Authorization' : auth,
'Date': date,
'Content-Type': 'text/xml',
'Content-Length': len(data),
}
# make REST request, capture 201 (success) response
request_url = 'https://%s%s' % (host, path)
req = urllib2.Request(request_url, data, headers=headers)
try:
response = urllib2.urlopen(req)
except urllib2.HTTPError, e:
print e
if not e.code == 201:
print "---------------------------------"
print "URL:", request_url
print ""
print "Headers:"
print minidom.parseString(headers).toprettyxml(indent=' '*4)
print ""
print "Data:"
print minidom.parseString(data).toprettyxml(indent=' '*4)
print "---------------------------------"
------------------------------------------------------------------------------
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