print all ENV variables listet ind perl (OIDC_CLAIM_upn)

azureadenv.pl

#!/usr/bin/perl
#
# place in /opt/otrs/bin/cgi-bin/azureadenv.pl
# call https://otrs.example.com/otrs/azureadenv.pl
# tested in #otrs6 #centos7
# reference: https://gist.github.com/josy1024/84853e1a72f5631f697ee324b93264fe
###
###  printenv -- demo CGI program which just prints its environment
###

print "Content-type: text/plain; charset=iso-8859-1\n\n";
foreach $var (sort(keys(%ENV))) {
   $val = $ENV{$var};
   $val =~ s|\n|\\n|g;
   $val =~ s|"|\\"|g;
   print "${var}=\"${val}\"\n";
}