用 SHELL 做个静态 HTTP 服务器

日期：2020-06-06 栏目：程序人生浏览：次

#!/bin/bash

#########################################################################################################

# 这是一个可以用来做静态 HTTP 的 BASH 脚本。在 inetd/xinetd 中运行就可以了。

# 对于 php 内容，通过调用 php 命令可以实现完整的 http + php 功能。 Good!

#########################################################################################################

DECODEURL()
{
echo "$1" | \
awk 'BEGIN {
for (i=0;i<=16;i++) hex[sprintf("%X",i)]=i;}
{ for (i=1;i<=length($0);i++)
{ c=substr($0,i,1)
    if (c=="+") printf (" ");
    else if (c=="%") {
     printf ("%c",hex[substr($0,++i,1)]*16+hex[substr($0,++i,1)])

                      }
    else printf (c);

   }
} '
}

LANG=en_US.UTF-8
httprootconf=/tmp/httproot

read GET eURL HTTPVER

URL=$(DECODEURL "$eURL")

URI="$URL"

[ -f "${httprootconf}" ] && URL="$( cat "${httprootconf}" )$URL"

# Get HTTP Header
lines=$( awk '{if ($0 == "\r") exit; else{ print ; print "\n" }}')

#Get Ranges
RANGE=$( echo -e "$lines" | sed 's/\r//g'|   ( while read eRange Range ; do if [ "$eRange" = "Range:" ] ; then echo $Range ; exit ; fi ; done ) )

RANGE=$( echo "$RANGE" | awk -F"=" '{print $2}')

RANGE_A=$( echo "$RANGE" | awk -F"-" '{print $1}')
RANGE_B=$( echo "$RANGE" | awk -F"-" '{print $2}')

#Get Host
HOST=$( echo -e "$lines" | sed 's/\r//g'|   ( while read eHOST HOST ; do if [ "$eHOST" = "Host:" ] ; then echo $HOST ; exit ; fi ; done ) )

if [ -e "$URL" ] ; then
echo -ne "HTTP/1.1 200 OK\r\n"
else
echo -ne "HTTP/1.1 404 Not Found\r\n"
fi

echo -ne "HTTP/1.1 200 OK\r\n"
echo -ne "Server: microcai's Very Simple HTTP index list Script\r\n"
echo -n "Data:" ; date
echo "URL: $URL"

if [ -d "$URL" ] || [ ! -e "$URL" ] ; then

echo "Content-Type: text/html"

else

filelength=$(ls -l "$URL" | awk '{print $5}')
contentlength=${filelength}

echo -n "Content-Type:"
file -b --mime-type "$URL"

echo -n "Content-Length: "

range_b="${RANGE_B}"

if [ -n "${RANGE}" ] ; then

        [ -z "${RANGE_B}" ] && range_b="${filelength}"

        contentlength=$( echo "${range_b} - ${RANGE_A}" | bc )
fi

echo ${contentlength}

#Content-Range: bytes 4506080-7009200/7009201
echo -ne "Content-Range: bytes $[RANGE_A]-$[range_b-1]/${filelength}\r\n"

fi

echo -e "Connection: close\r\n"

if [ -d "$URL" ] ; then

echo "<HTML>
<HEAD>
<TITLE>Directory /</TITLE>
</HEAD>
"

        echo "<body><H1>Directory listing of $URI</H1><UL>"

        echo "<LI><A HREF=https://www.linuxidc.com/Linux/2011-12/\"../\">../</A></LI>"

        for files in "$URL"/*
        do
                filename=$( basename "$files" )

                if [ -d "$files" ] ; then

                        echo "<LI><A HREF=https://www.linuxidc.com/Linux/2011-12/\"$filename/\">${filename}/</A></LI>"

                else
                        echo "<LI><A HREF=https://www.linuxidc.com/Linux/2011-12/\"$filename\">${filename}</A></LI>"
                fi

        done

        echo -ne "</UL></UL>
<H2>Microcai Simple HTTP Server by BASH, `date` </H2>
<H3>Copyright 2011; Microcai </H3>
        </BODY>
        </HTML>
        "

elif [ -f "$URL" ] ; then
        if [ -z "${RANGE}" ] ; then
                cat "$URL"
        elif [ -z "${RANGE_B}" ] ; then # dd 性能不好 , 但是为了支持 XX ，无奈
                dd if="$URL" ibs=1 skip=${RANGE_A} count=${contentlength}
        else
                tail -c "+$[RANGE_A+1]" "$URL"
        fi
else
        echo "Listen to Microcai, the file is really not found! goto <a href=https://www.linuxidc.com/Linux/2011-12/\"/\">Root Index</a>"
fi

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用 SHELL 做个静态 HTTP 服务器

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