#!/data/wre/prereqs/bin/python

# Configurations
log = '/dev/null'   # or e.g. /tmp/cdn.log
DEBUG = 0
# end config

from datetime import datetime, timedelta
import locale
import sys
import subprocess

def futureDate():
    """
    futureDate: a date in the pseudo-infinite future, for expiring pseudo-never
    RFC-2616-14.21 says one year max, but prominent examples use 10 years, e.g.
    http://developer.yahoo.com/performance/rules.html
    """
    # stackoverflow.com/questions/225086/rfc-1123-date-representation-in-python
    locale.setlocale(locale.LC_TIME, 'en_US')
    in10yr = datetime.utcnow() + timedelta(days=3650)
    return in10yr.strftime('%a, %d %b %Y %H:%M:%S GMT')

try:
    bucketName = sys.argv[1]
    bucketPath = sys.argv[2]
    storageLocation = sys.argv[3]
except:
    sys.exit('Usage: %s <bucketName> <bucketWithPath> <storageLocation>' % sys.argv[0])
forever = futureDate()
cmd = "/data/wre/prereqs/bin/s3cmd --config=/data/WebGUI/etc/%s.s3cfg" % (bucketName)
cmd += " put --recursive --acl-public --add-header 'Expires: %s' "  % (forever)
cmd += "-- '%s' s3://%s/" % (storageLocation, bucketPath)
cmd += " >> %s 2>&1" % log
if DEBUG > 2:
    print cmd
sys.exit(subprocess.call(cmd, shell=True))