#! /usr/bin/env bash # source: proxyecho.sh # Copyright Gerhard Rieger and contributors (see file CHANGES) # Published under the GNU General Public License V.2, see file COPYING # perform primitive simulation of a proxy server with echo function via stdio. # accepts and answers correct HTTP CONNECT requests, but then just echoes data. # it is required for test.sh # for TCP, use this script as: # socat tcp-l:8080,reuseaddr,crlf system:"proxyecho.sh" if type socat >/dev/null 2>&1; then SOCAT=socat else SOCAT=./socat fi case `uname` in HP-UX|OSF1) CAT="$SOCAT -u stdin stdout" ;; *) CAT=cat ;; esac SPACES=" " while [ -n "$1" ]; do case "$1" in -w) n="$2"; while [ "$n" -gt 0 ]; do SPACES="$SPACES "; n=$((n-1)); done shift ;; #-s) STAT="$2"; shift ;; esac shift done # read and parse HTTP request read l if echo "$l" |egrep '^CONNECT +[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+:[0-9]+ +HTTP/1.[01]$' >/dev/null then : go on below else echo "HTTP/1.0${SPACES}500 Bad Request" echo exit fi # read more headers until empty line while [ -n "$l" ]; do read l done # send status echo "HTTP/1.0${SPACES}200 OK" # send empty line echo # perform echo function exec $CAT