build.sh

#!/bin/bash
set -euo pipefail

# config
# default cgi path 
cgi_path="/usr/lib/cgi-bin/"

bos() {
tee "$2" >>/dev/null <<EOF
#!/bin/bash 
echo "X-Bash-On-Steroids: Because there's nothing you can't fix with a #!Bash Script."
echo Content-type: text/html
echo ""
## make POST and GET stings 
## as bash variables available
if [ ! -z \$CONTENT_LENGTH ] && [ "\$CONTENT_LENGTH" -gt 0 ] && [ \$CONTENT_TYPE != "multipart/form-data" ]; then
    read -n \$CONTENT_LENGTH POST_STRING <&0
    eval \$(echo "\${POST_STRING//;}"|grep '='|tr '&' ';')
fi
eval \$(echo "\${QUERY_STRING//;}"|grep '='|tr '&' ';')
## decode URL-encoding
urldecode() { : "\${*//+/ }"; echo -e "\${_//%/\\x}"; }
EOF

IFS=''
flag=0
lc=0
export txt=''
while read -r line;do
    lc=$(( lc+1 ))
    # Start and end tags in same line
    if echo "$line"| grep -qe "<?.*?>" -qe "<?bash.*?>";then
        if [[ $flag -eq 0 ]];then
            line=${line//<?bash/<?}
            pre=$(echo -e "$line"  | sed -e 's/<?.*//')
            comm=$(echo -e "$line" | sed -e 's/^.*<? //' | sed -e 's/?>.*//')
            post=$(echo -e "$line" | sed -e 's/^.*?>//')

            if [[ -n "$pre" ]];then
                pre=${pre//\\/\\\\}
                mod_pre=$(echo -e "$pre" |sed 's/"/\\\"/g')
                mod_pre=${mod_pre//\$/\\$}
                echo -e "echo  \"$mod_pre\"" >>"$2"
            fi
            echo -e "$comm" >> "$2"
            if [[ -n "$post" ]];then
                post=${post//\\/\\\\}
                mod_post=$(echo -e "$post" | sed 's/"/\\\"/g')
                mod_post=${mod_post//\$/\\$}
                echo -e "echo  \"$mod_post\"" >>"$2"
            fi
            continue
        else
            echo  "ERROR : Non-terminated &lt;?bash or &lt;? in file $1 (Line $lc) "
            exit 1
        fi	
    fi
    # Start tag
    if echo "$line" | sed 's/^ *//' | grep -q "^<?bash\\|^<?";then
        if [[ $flag -eq 0 ]];then
            flag=1
            line=${line/<?bash}
            echo -e "${line/<?}" >> "$2"
        else
            echo  "ERROR : Non-terminated &lt;?bash or &lt;? in file $1 (Line $lc) "
            exit 1
        fi
        continue;
    fi
    # End tag
    if echo "$line" | grep -q "?>$";then
        if [[ $flag -eq 1 ]];then
            flag=0
            echo "${line/?>}" >> "$2"
        else
            echo "ERROR : Unmatched ?&gt; in file $1 (Line $lc)"
            exit 1
        fi
        continue;
    fi
    # Take action on current line based on flag
    if [[ $flag -eq 0 ]];then
        line=${line//\\/\\\\}
        modline=$(echo  -e "$line" | sed -e 's/"/\\\"/g')
        modline=${modline//\$/\\$}
        echo -e "echo  \"$modline\"" >>"$2"
    else
        echo -e "${line}" >> "$2"
    fi
done < "$1"
}
for file in *.htsh; do
    if [[ "$file" -nt ${cgi_path}"${file//htsh/cgi}" ]];then
        echo -e "\\033[0;32m$file \\033[0;31m--->>\\033[0;32m ${cgi_path}${file//htsh/cgi}\\033[0m"
        bos "$file" ${cgi_path}"${file//htsh/cgi}"
        chmod +x ${cgi_path}"${file//htsh/cgi}"
    fi
done