bash-shell做CGI,用于获取HTTP POST提交的数据
由于对HTTP/CGI的工作模式不了解，在网络上找了许久用shell做CGI来提取POST，最终找到了，发现年头挺久的了，http://www.fpx.de/fp/Software/ProcCGIsh.html（其中还有C实现和TCL实现）。下载地址：http://www.fpx.de/fp/Software/proccgi.sh
贴出shell脚本内容：
[*]#!/bin/sh
[*]#
[*]# Process input to a CGI script. Written and Copyright 1995 Frank Pilhofer
[*]# You may freely use and distribute this code free of charge provided that
[*]# this copyright notice remains. fp@informatik.uni-frankfurt.de
[*]#
[*]# All variables in here are prefixed by _F_, so you shouldn't have
[*]# any conflicts with your own var names
[*]#
[*]# get query string. if $REQUEST_METHOD is "POST", then it must be read
[*]# from stdin, else it's in $QUERY_STRING
[*]#
[*]if [ ${DEBUG:-0} -eq 1 ] ; then
[*] echo --Program Starts-- 1>&2
[*]fi
[*]#
[*]if [ "$REQUEST_METHOD" = "POST" ] ; then
[*] _F_QUERY_STRING=`dd count=$CONTENT_LENGTH bs=1 2> /dev/null`"&"
[*] if [ "$QUERY_STRING" != "" ] ; then
[*] _F_QUERY_STRING="$_F_QUERY_STRING""$QUERY_STRING""&"
[*] fi
[*] if [ ${DEBUG:-0} -eq 1 ] ; then
[*] echo --Posted String-- 1>&2
[*] fi
[*]else
[*] _F_QUERY_STRING="$QUERY_STRING""&"
[*] if [ ${DEBUG:-0} -eq 1 ] ; then
[*] echo --Query String-- 1>&2
[*] fi
[*]fi
[*]if [ ${DEBUG:-0} -eq 1 ] ; then
[*] ( echo "" $_F_QUERY_STRING
[*] echo --Adding Arguments-- ) 1>&2
[*]fi
[*]#
[*]# if there are arguments, use them as well.
[*]#
[*]for _F_PAR in $* ; do
[*] _F_QUERY_STRING="$_F_QUERY_STRING""$_F_PAR""&"
[*] if [ ${DEBUG:-0} -eq 1 ] ; then
[*] echo "" arg $_F_PAR 1>&2
[*] fi
[*]done
[*]if [ ${DEBUG:-0} -eq 1 ] ; then
[*] ( echo --With Added Arguments--
[*] echo "" $_F_QUERY_STRING ) 1>&2
[*]fi
[*]#
[*]# if $PATH_INFO is not empty and contains definitions '=', append it as well.
[*]# but replace slashes by ampersands
[*]#
[*]if echo $PATH_INFO | grep = > /dev/null ; then
[*] _F_PATH_INFO="$PATH_INFO""//"
[*] if [ ${DEBUG:-0} -eq 1 ] ; then
[*] ( echo --Adding Path Info--
[*] echo "" $_F_PATH_INFO ) 1>&2
[*] fi
[*]
[*] while [ "$_F_PATH_INFO" != "" -a "$_F_PATH_INFO" != "/" ] ; do
[*] _F_QUERY_STRING="$_F_QUERY_STRING""`echo $_F_PATH_INFO | cut -d / -f 1`""&"
[*] _F_PATH_INFO=`echo $_F_PATH_INFO | cut -s -d / -f 2-`
[*] done
[*]fi
[*]#
[*]# append another '&' to fool some braindead cut implementations. Test yours:
[*]# echo 'i am braindead!' | cut -d '!' -f 2
[*]#
[*]_F_QUERY_STRING="$_F_QUERY_STRING""&"
[*]#
[*]if [ ${DEBUG:-0} -eq 1 ] ; then
[*] ( echo --Final Query String--
[*] echo "" $_F_QUERY_STRING ) 1>&2
[*]fi
[*]#
[*]while [ "$_F_QUERY_STRING" != "" -a "$_F_QUERY_STRING" != "&" ] ; do
[*] _F_VARDEF=`echo $_F_QUERY_STRING | cut -d \& -f 1`
[*]# _F_QUERY_STRING=`echo $_F_QUERY_STRING | cut -d \& -f 2-`
[*] _F_VAR=`echo $_F_VARDEF | cut -d = -f 1`
[*] _F_VAL=`echo "$_F_VARDEF""=" | cut -d = -f 2`
[*]
[*]#
[*]# Workaround for more braindead cut implementations that strip delimiters
[*]# at the end of the line (i.e. HP-UX 10)
[*]#
[*]
[*] if echo $_F_QUERY_STRING | grep -c \& > /dev/null ; then
[*] _F_QUERY_STRING=`echo $_F_QUERY_STRING | cut -d \& -f 2-`
[*] else
[*] _F_QUERY_STRING=""
[*] fi
[*]
[*] if [ ${DEBUG:-0} -eq 1 ] ; then
[*] ( echo --Got Variable--
[*] echo "" var=$_F_VAR
[*] echo "" val=$_F_VAL
[*] echo "" rem=$_F_QUERY_STRING ) 1>&2
[*] fi
[*] if [ "$_F_VAR" = "" ] ; then
[*] continue
[*] fi
[*]
[*]#
[*]# replace '+' by spaces
[*]#
[*]
[*] _F_VAL="$_F_VAL""++"
[*] _F_TMP=
[*]
[*] while [ "$_F_VAL" != "" -a "$_F_VAL" != "+" -a "$_F_VAL" != "++" ] ; do
[*] _F_TMP="$_F_TMP""`echo $_F_VAL | cut -d + -f 1`"
[*] _F_VAL=`echo $_F_VAL | cut -s -d + -f 2-`
[*]
[*] if [ "$_F_VAL" != "" -a "$_F_VAL" != "+" ] ; then
[*] _F_TMP="$_F_TMP"" "
[*] fi
[*] done
[*]
[*] if [ ${DEBUG:-0} -eq 1 ] ; then
[*] echo "" vrs=$_F_TMP 1>&2
[*] fi
[*]
[*]#
[*]# replace '%XX' by ascii character. the hex sequence MUST BE uppercase
[*]#
[*]
[*] _F_TMP="$_F_TMP""%%"
[*] _F_VAL=
[*]
[*] while [ "$_F_TMP" != "" -a "$_F_TMP" != "%" ] ; do
[*] _F_VAL="$_F_VAL""`echo $_F_TMP | cut -d % -f 1`"
[*] _F_TMP=`echo $_F_TMP | cut -s -d % -f 2-`
[*]
[*] if [ "$_F_TMP" != "" -a "$_F_TMP" != "%" ] ; then
[*] if [ ${DEBUG:-0} -eq 1 ] ; then
[*] echo "" got hex "%" $_F_TMP 1>&2
[*] fi
[*] _F_HEX=`echo $_F_TMP | cut -c 1-2 | tr "abcdef" "ABCDEF"`
[*] _F_TMP=`echo $_F_TMP | cut -c 3-`
[*]#
[*]# can't handle newlines anyway. replace by space
[*]#
[*]# if [ "$_F_HEX" = "0A" ] ; then
[*]# _F_HEX="20"
[*]# fi
[*]
[*] _F_VAL="$_F_VAL""`/bin/echo '\0'\`echo "16i8o"$_F_HEX"p" | dc\``"
[*] fi
[*] done
[*]
[*]#
[*]# replace forward quotes to backward quotes, since we have trouble handling
[*]# the former ones.
[*]#
[*]
[*] _F_VAL=`echo $_F_VAL | tr "'" '\`'`
[*]
[*]#
[*]# if debug, send variables to stderr
[*]#
[*]
[*] if [ ${DEBUG:-0} -eq 1 ] ; then
[*] ( echo --Final Assignment--
[*] echo "FORM_$_F_VAR"=\'$_F_VAL\' ) 1>&2
[*] fi
[*]
[*]# /bin/echo "FORM_$_F_VAR"=\'$_F_VAL\'
[*] /bin/echo "FORM_$_F_VAR"="'"$_F_VAL"'"
[*]done
[*]#
[*]if [ ${DEBUG:-0} -eq 1 ] ; then
[*] echo done. 1>&2
[*]fi
[*]#
[*]# done.
[*]#
[*]exit 0
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