Squid redirector

Squid Redirector

Вспомнил как шутил, и решил записать, что бы не забыть.

iptables

-A PREROUTING   -s 10.0.192.0/24 -m tcp -p tcp  --dport 80  -j REDIRECT  --to-port 13128

squid

http_port 127.0.0.1:13128 transparent
http_port 10.0.192.254:13128 transparent
http_port 172.16.49.65:3128

url_rewrite_program /usr/local/redirector/redirector.sh
url_rewrite_children 100

redirect script

#!/bin/bash

#$|=1;
#$count = 0;
#$pid = $$;

LOG='/tmp/redir.log'
WGET='/usr/bin/wget'
BASENAME='/usr/bin/basename'
MOGRIFY='/usr/bin/mogrify'
HTTP_ROOT="/var/www/localhost/htdocs"
NEW_URL_BASE="http://127.0.0.1"

#URL <SP> client_ip "/" fqdn <SP> user <SP> method [<SP> kvpairs]<NL>

COUNT=0

while read L
do

#    echo L=~~~""$L"~~~", COUNT=$COUNT >>  $LOG
#    echo $L >>  $LOG
     URL=`echo $L        | awk '{ print $1 }'`
     IP=`echo $L | awk '{ print $2}'`
     FQDN=`echo $L       | awk '{ print $3 }'`
     USER=`echo $L       | awk '{ print $4 }'`
     METHOD=`echo $L | awk '{ print $5 }'`
     OTHER=`echo $L | awk '{ print $6 }'`

#    echo URL="~~~"$URL"~~~" >> $LOG
#    echo RES=$URL $IP $FQDN $USER $METHOD $OTHER  >> $LOG
     if echo $URL | egrep "png$|jpeg$|gif$|jpg$" >/dev/null 2>/dev/null
     then
#       echo REWRITE IT  >> $LOG

        # Выяснить расширение файла
        EXT=` $BASENAME $URL | awk '{print a[split($1,a,".")];}'`
#       echo $WGET  -q -O ${HTTP_ROOT}/$$"_"${COUNT}.${EXT} ${URL} >> $LOG
        $WGET  -q -O ${HTTP_ROOT}/$$"_"${COUNT}.${EXT} ${URL}
        # Тут вставить выбор фильтра
#       $MOGRIFY -blur 4 ${HTTP_ROOT}/$$"_"${COUNT}.${EXT}
        $MOGRIFY -blur 4 ${HTTP_ROOT}/$$"_"${COUNT}.${EXT}
#       $MOGRIFY -flip  ${HTTP_ROOT}/$$"_"${COUNT}.${EXT}
#       echo $MOGRIFY -flip  ${HTTP_ROOT}/$$"_"${COUNT}.${EXT} >> $LOG

        NEW_URL=`echo ${NEW_URL_BASE}/$$"_"${COUNT}.${EXT}`
        echo $NEW_URL
#       echo "NEW_URL=~~~"$NEW_URL"~~~" >> $LOG
    else
#       echo "NEW_URL=URL~~~"$URL"~~~" >> $LOG
        echo $URL
    fi
    let COUNT=COUNT+1
done
exit