wsse header

from hashlib import sha1
import time
import random
import uuid

def get_digest(password, nonce, created):
    """ Returns the password's expected digest.
    """
    nonce = nonce.decode('base64')
    concat = nonce + created + password

    h = sha1()
    h.update(concat)

    return str.encode(h.digest(), 'base64').rstrip('\n')

nonce = str(random.random()).encode('base64')
created = str(time.strftime('%Y-%m-%dT%H:%M:%SZ', time.gmtime(time.time())))
precreation = str(time.strftime('%Y-%m-%dT%H:%M:%SZ', time.gmtime(time.time() - 30)))
expires = str(time.strftime('%Y-%m-%dT%H:%M:%SZ', time.gmtime(time.time() + 60)))
password='1111'
digest = get_digest(password, nonce, created)
guid = str(uuid.uuid4())

header = """
   <soap:Header>
      <wsse:Security soap:mustUnderstand="1" xmlns:wsse="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd" xmlns:wsu="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd">
         <wsse:UsernameToken wsu:Id="UsernameToken-{guid}">
            <wsse:Username>{user}</wsse:Username>
            <wsse:Password Type="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-username-token-profile-1.0#PasswordDigest">{digest}</wsse:Password>
            <wsse:Nonce EncodingType="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-soap-message-security-1.0#Base64Binary">{nonce}</wsse:Nonce>
            <wsu:Created>{created}</wsu:Created>
         </wsse:UsernameToken>
         <wsu:Timestamp wsu:Id="TS-1c559973-3141-449d-9e71-2116ffa07427">
            <wsu:Created>{created}</wsu:Created>
            <wsu:Expires>{expires}</wsu:Expires>
         </wsu:Timestamp>
      </wsse:Security>
   </soap:Header>""".format(user='admin', password=password, guid=guid, nonce=nonce, created=created, expires=expires, digest=digest)