#!/bin/sh

#set -vx

LCFILE=/etc/pki/ca-trust/ca-legacy.conf

LLINK=/etc/pki/ca-trust/source/ca-bundle.legacy.crt

LENABLE=/usr/share/pki/ca-trust-legacy/ca-bundle.legacy.enable.crt

LDISABLE=/usr/share/pki/ca-trust-legacy/ca-bundle.legacy.disable.crt

do_grep()

{

    grep -i "^legacy *= *enable *$" $LCFILE >/dev/null 2>&1

}

do_check()

{

    do_grep

    if [ $? -eq 0 ]; then

        echo "Legacy CAs are set to ENABLED in file $LCFILE (affects install/upgrade)"

        LEXPECT=$LENABLE

    else

        echo "Legacy CAs are set to DISABLED in file $LCFILE (affects install/upgrade)"

        LEXPECT=$LDISABLE

    fi

    echo "Status of symbolic link $LLINK:"

    readlink -v $LLINK

}

do_install()

{

    do_grep

    if [ $? -eq 0 ]; then

        # expression was found, legacy is enabled

        ln -sf $LENABLE $LLINK

    else

        # not found, legacy is disabled

        ln -sf $LDISABLE $LLINK

    fi

}

do_enable()

{

    sed -i 's/^legacy *=.*$/legacy=enable/' $LCFILE

    do_install

    /usr/bin/update-ca-trust

}

do_disable()

{

    sed -i 's/^legacy *=.*$/legacy=disable/' $LCFILE

    do_install

    /usr/bin/update-ca-trust

}

do_help()

{

    echo "usage: $0 [check | enable | disable | install]"

}

if [[ $# -eq 0 ]]; then

  # no parameters

  do_help

  exit $?

fi

if [[ "$1" = "install" ]]; then

  do_install

  exit $?

fi

if [[ "$1" = "enable" ]]; then

  do_enable

  exit $?

fi

if [[ "$1" = "disable" ]]; then

  do_disable

  exit $?

fi

if [[ "$1" = "check" ]]; then

  do_check

  exit $?

fi