(Chilkat2-Python) SOAP WS-Security UsernameToken

Demonstrates how to add a UsernameToken with the WSS SOAP Message Security header.

Note: This example requires Chilkat v9.5.0.66 or later.

Chilkat2 Python Downloads install with pip pip3 install chilkat2 or download... Python Module for Windows, Linux, Alpine Linux, MacOS, Solaris

import chilkat2

# This example requires the Chilkat Crypt API to have been previously unlocked.
# See Unlock Chilkat Crypt for sample code.

# An HTTP SOAP request is an HTTP request where the SOAP XML composes the body.
# This example demonstrates how to add a WS-Security header such as the following:
# 
# <wsse:UsernameToken xmlns:wsu="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd" wsu:Id="SecurityToken-6138db82-5a4c-4bf7-915f-af7a10d9ae96">
#   <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">CBb7a2itQDgxVkqYnFtggUxtuqk=</wsse:Password>
#   <wsse:Nonce>5ABcqPZWb6ImI2E6tob8MQ==</wsse:Nonce>
#   <wsu:Created>2010-06-08T07:26:50Z</wsu:Created>
# </wsse:UsernameToken>
# 

# First build some simple SOAP XML that has some header and body.
xml = chilkat2.Xml()
xml.Tag = "env:Envelope"
xml.AddAttribute("xmlns:env","http://www.w3.org/2003/05/soap-envelope")
xml.UpdateAttrAt("env:Header|n:alertcontrol",True,"xmlns:n","http://example.org/alertcontrol")
xml.UpdateChildContent("env:Header|n:alertcontrol|n:priority","1")
xml.UpdateChildContent("env:Header|n:alertcontrol|n:expires","2001-06-22T14:00:00-05:00")
xml.UpdateAttrAt("env:Body|m:alert",True,"xmlns:m","http://example.org/alert")
xml.UpdateChildContent("env:Body|m:alert|m:msg","Pick up Mary at school at 2pm")
print(xml.GetXml())
print("----")

# The following SOAP XML is built:

# 	<env:Envelope xmlns:env="http://www.w3.org/2003/05/soap-envelope">
# 	 <env:Header>
# 	  <n:alertcontrol xmlns:n="http://example.org/alertcontrol">
# 	   <n:priority>1</n:priority>
# 	   <n:expires>2001-06-22T14:00:00-05:00</n:expires>
# 	  </n:alertcontrol>
# 	 </env:Header>
# 	 <env:Body>
# 	  <m:alert xmlns:m="http://example.org/alert">
# 	   <m:msg>Pick up Mary at school at 2pm</m:msg>
# 	  </m:alert>
# 	 </env:Body>
# 	</env:Envelope>
# 

# Now build the WSSE XML housing that we'll insert into the above SOAP XML at the end.

# 	<wsse:Security>
# 	  <wsse:UsernameToken xmlns:wsu="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd" wsu:Id="WSU_ID">
# 	    <wsse:Username>USERNAME</wsse:Username>
# 	    <wsse:Password Type="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-username-token-profile-1.0#PasswordDigest">PASSWORD_DIGEST</wsse:Password>
# 	    <wsse:Nonce>NONCE</wsse:Nonce>
# 	    <wsu:Created>CREATED</wsu:Created>
# 	  </wsse:UsernameToken>
# 	</wsse:Security>

wsse = chilkat2.Xml()
wsse.Tag = "wsse:Security"
wsse.UpdateAttrAt("wsse:UsernameToken",True,"xmlns:wsu","http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd")
wsse.UpdateAttrAt("wsse:UsernameToken",True,"wsu:Id","WSU_ID")
wsse.UpdateChildContent("wsse:UsernameToken|wsse:Username","USERNAME")
wsse.UpdateAttrAt("wsse:UsernameToken|wsse:Password",True,"Type","http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-username-token-profile-1.0#PasswordDigest")
wsse.UpdateChildContent("wsse:UsernameToken|wsse:Password","PASSWORD_DIGEST")
wsse.UpdateChildContent("wsse:UsernameToken|wsse:Nonce","NONCE")
wsse.UpdateChildContent("wsse:UsernameToken|wsu:Created","CREATED")
print(wsse.GetXml())
print("----")

# Insert the wsse:Security XML into the existing SOAP header:
# xHeader is a CkXml
xHeader = xml.GetChildWithTag("env:Header")
xHeader.AddChildTree(wsse)

# Now show the SOAP XML with the wsse:Security header added:
print(xml.GetXml())
print("----")

# Now our XML looks like this:
# 	<env:Envelope xmlns:env="http://www.w3.org/2003/05/soap-envelope">
# 	    <env:Header>
# 	        <n:alertcontrol xmlns:n="http://example.org/alertcontrol">
# 	            <n:priority>1</n:priority>
# 	            <n:expires>2001-06-22T14:00:00-05:00</n:expires>
# 	        </n:alertcontrol>
# 	        <wsse:Security>
# 	            <wsse:UsernameToken xmlns:wsu="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd" wsu:Id="WSU_ID">
# 	                <wsse:Username>USERNAME</wsse:Username>
# 	                <wsse:Password Type="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-username-token-profile-1.0#PasswordDigest">PASSWORD_DIGEST</wsse:Password>
# 	                <wsse:Nonce>NONCE</wsse:Nonce>
# 	                <wsu:Created>CREATED</wsu:Created>
# 	            </wsse:UsernameToken>
# 	        </wsse:Security>
# 	    </env:Header>
# 	    <env:Body>
# 	        <m:alert xmlns:m="http://example.org/alert">
# 	            <m:msg>Pick up Mary at school at 2pm</m:msg>
# 	        </m:alert>
# 	    </env:Body>
# 	</env:Envelope>
# 

# -----------------------------------------------------
# Now let's fill-in-the-blanks with actual information...
# -----------------------------------------------------

wsu_id = "Example-1"
wsse.UpdateAttrAt("wsse:UsernameToken",True,"wsu:Id",wsu_id)

password = "password"
username = "user"
wsse.UpdateChildContent("wsse:UsernameToken|wsse:Username",username)

# The nonce should be 16 random bytes.
prng = chilkat2.Prng()
bd = chilkat2.BinData()
# Generate 16 random bytes into bd.
# Note: The GenRandomBd method is added in Chilkat v9.5.0.66
prng.GenRandomBd(16,bd)

nonce = bd.GetEncoded("base64")
wsse.UpdateChildContent("wsse:UsernameToken|wsse:Nonce",nonce)

# Get the current date/time in a string with this format: 2010-06-08T07:26:50Z
dt = chilkat2.CkDateTime()
dt.SetFromCurrentSystemTime()
bLocal = False
created = dt.GetAsTimestamp(bLocal)
wsse.UpdateChildContent("wsse:UsernameToken|wsu:Created",created)

# The password digest is calculated like this:
# Password_Digest = Base64 ( SHA-1 ( nonce + created + password ) )
bd.AppendString(created,"utf-8")
bd.AppendString(password,"utf-8")

crypt = chilkat2.Crypt2()
crypt.HashAlgorithm = "SHA-1"
crypt.EncodingMode = "base64"
# Note: The HashBdENC method is added in Chilkat v9.5.0.66
passwordDigest = crypt.HashBdENC(bd)
wsse.UpdateChildContent("wsse:UsernameToken|wsse:Password",passwordDigest)

# Examine the final SOAP XML with WS-Security header added.
print(xml.GetXml())