Use wget and sed to update Polipo forbidden file from http://easylist-downloads.adblockplus.org/easylist.txt

Polipo-adblocker.sh

#!/bin/bash +xv

declare WGET=/usr/bin/wget
declare SED=/bin/sed
declare INVOKE=/usr/sbin/invoke-rc.d
#declare TORIFY=/usr/bin/torify
#declare TORRESOLVE=/usr/bin/tor-resolve

declare -i EXIT_VALUE=0

declare ADBLOCKER=easylist-downloads.adblockplus.org
declare EASYLIST=easylist.txt
declare EASYPRIVACY=easyprivacy.txt
declare FORBIDDEN=/etc/polipo/forbidden

if [[ $EUID -ne 0 ]]; then
    echo -e "\n\E[31m\E[1mERROR:\E[22m This script must be run as root\E[00m\n" 1>&2
    EXIT_VALUE=1
else
  $WGET --quiet http://$ADBLOCKER/$EASYLIST --no-check-certificate --spider && $WGET --quiet http://$ADBLOCKER/$EASYLIST --no-check-certificate -O- | $SED -e '/^\[/d' -e '/^!/d' -e '/^#/d' -e '/^~/d' -e '/^@/d' -e '/^\/adverti/d' -e 's/^+/\\+/g' -e '/##/d' -e 's/|*//g' -e 's/\./\\\./g' -e 's/\*/\.\*/g' -e 's/\?/\\\?/g' -e 's/\$.*//g' -e 's/\^/[\\\/:\\\.=\&\\\?\\\+\\\-\\\ \]+/g' > $FORBIDDEN
#	$WGET --quiet http://$ADBLOCKER/$EASYPRIVACY --no-check-certificate --spider && $WGET --quiet http://$ADBLOCKER/$EASYPRIVACY --no-check-certificate -O- | $SED -e '/^\[/d' -e '/^!/d' -e '/^#/d' -e '/^~/d' -e '/^@/d' -e '/^\/adverti/d' -e 's/^+/\\+/g' -e '/##/d' -e 's/|*//g' -e 's/\./\\\./g' -e 's/\*/\.\*/g' -e 's/\?/\\\?/g' -e 's/\$.*//g' -e 's/\^/[\\\/:\\\.=\&\\\?\\\+\\\-\\\ \]+/g' >> $FORBIDDEN
#	$TORIFY $WGET --quiet http://$($TORRESOLVE $ADBLOCKER)/$EASYLIST --no-check-certificate -O- | $SED -e '/^\[/d' -e '/^!/d' -e '/^#/d' -e '/^~/d' -e '/^@/d' -e '/^\/adverti/d' -e 's/^+/\\+/g' -e '/##/d' -e 's/|*//g' -e 's/\./\\\./g' -e 's/\*/\.\*/g' -e 's/\?/\\\?/g' -e 's/\$.*//g' -e 's/\^/[\\\/:\\\.=\&\\\?\\\+\\\-\\\ \]+/g' > $FORBIDDEN
#	$TORIFY $WGET --quiet http://$($TORRESOLVE $ADBLOCKER)/$EASYPRIVACY --no-check-certificate -O- | $SED -e '/^\[/d' -e '/^!/d' -e '/^#/d' -e '/^~/d' -e '/^@/d' -e '/^\/adverti/d' -e 's/^+/\\+/g' -e '/##/d' -e 's/|*//g' -e 's/\./\\\./g' -e 's/\*/\.\*/g' -e 's/\?/\\\?/g' -e 's/\$.*//g' -e 's/\^/[\\\/:\\\.=\&\\\?\\\+\\\-\\\ \]+/g' >> $FORBIDDEN
	$INVOKE polipo-chroot restart
fi

exit $EXIT_VALUE

@aido Sadly no longer works.

Couldn't compile regex: 11.