postrm is in sipml5-web-phone 0.0.20130314.2030-2.
This file is a maintainer script. It is executed when installing (*inst) or removing (*rm) the package.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51  | #! /bin/sh
set -e
. /usr/share/debconf/confmodule
db_version 2.0 || [ $? -lt 30 ]
if [ "$1" = "purge" ]; then
    db_get sipml5-web-phone/webserver || true
    if [ "$RET" = "true" ]; then
        webserver="apache2"
        if [ -h /etc/$webserver/conf.d/sipml5-web-phone ]; then
            rm -f /etc/$webserver/conf.d/sipml5-web-phone
        fi
        if [ -h /etc/$webserver/conf-available/sipml5-web-phone ]; then
            rm -f /etc/$webserver/conf-available/sipml5-web-phone
        fi
        if [ -x /usr/sbin/$webserver ]; then
            db_reset sipml5-web-phone/reload
            db_input high sipml5-web-phone/reload || true
            db_go
            # Restart apache2 if requested
            db_get sipml5-web-phone/reload
            if [ "$RET" = "true" ]; then
                if [ -x /usr/sbin/invoke-rc.d ]; then
                    invoke-rc.d $webserver reload
                else
                    /etc/init.d/$webserver reload
                fi
            fi
        fi
    fi
    rmdir --ignore-fail-on-non-empty /etc/sipml5-web-phone || true
    db_purge
fi
# Automatically added by dh_installdebconf
if [ "$1" = purge ] && [ -e /usr/share/debconf/confmodule ]; then
	. /usr/share/debconf/confmodule
	db_purge
fi
# End automatically added section
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