quick script to see if a domain is being managed / federated on ms365

ms_tenant_check.sh

#!/usr/bin/env bash
set -euo pipefail

domain="${1:?usage: $0 domain.com [username]}"
user="${2:-}"
# If username is blank or unset, default to "admin"
[[ -z "$user" ]] && user="admin"

# Grab Results
url="https://login.microsoftonline.com/getuserrealm.srf?login=${user}@${domain}&xml=1"
xml="$(curl -fsSL "$url")"
get() { sed -n "s:.*<$1>\\(.*\\)</$1>.*:\\1:p" <<<"$xml" | head -n1; }
attr(){ sed -n "s:.*$1=\"\\([^\"]*\\)\".*:\\1:p" <<<"$xml" | head -n1; }

# Setup Colors
# ANSI
G=$'\033[0;32m'; R=$'\033[0;31m'; Y=$'\033[0;33m'; B=$'\033[1m'; N=$'\033[0m'
# Inline color wrappers
okfail() { [[ "$1" == "true" ]] && printf "%s%s%s" "$G" "$1" "$N" || printf "%s%s%s" "$R" "$1" "$N"; }
nscol()  { [[ "$1" == "Managed" ]] && printf "%s%s%s" "$G" "$1" "$N" || ([[ "$1" == "Federated" ]] && printf "%s%s%s" "$Y" "$1" "$N" || printf "%s" "$1"); }
tfcol()  { [[ "$1" == "true" ]] && printf "%s%s%s" "$Y" "$1" "$N" || printf "%s%s%s" "$G" "$1" "$N"; }

# Get Results
success="$(attr Success)"
nstype="$(get NameSpaceType)"
fed="$(get IsFederatedNS)"
# Force failure if namespace is Unknown
[[ "$nstype" == "Unknown" ]] && success="false"

# Print Results
printf "${B}User:${N} %s\n" "$user"
printf "${B}Success:${N} %s\n" "$(okfail "$success")"
printf "${B}Domain:${N} %s\n" "$(get DomainName)"
printf "${B}NameSpaceType:${N} %s\n" "$(nscol "$nstype")"
printf "${B}IsFederatedNS:${N} %s\n" "$(tfcol "$fed")"
printf "${B}Brand:${N} %s\n" "$(get FederationBrandName)"
printf "${B}CloudInstance:${N} %s\n" "$(get CloudInstanceName)"
printf "${B}IssuerUri:${N} %s\n" "$(get CloudInstanceIssuerUri)"