SAML Debugging - Pulling SAMLResponse POSTed to Okta from HAR using jq

har-to-SAMLResponse

#!/bin/bash
harFile="${1:=NetworkData.xml}"
cat "${harFile}" |
  jq --raw-output --from-file har-to-SAMLResponse.jq | # get URL encoded SAMLResponse
  while read; do echo -e ${REPLY//%/\\x}; done | # decode to Base64 SAMLResponse
  base64 --decode # decode to XML SAMLResponse

har-to-SAMLResponse.jq

.log.entries[].request |
  select(.url == "https://example.okta.com/sso/saml2/0oa21234abcd1234abcd1234") |
  .postData.params[] |
  select(.name == "SAMLResponse") |
  .value