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}"; }
## Security feature for escaping HTML
html_escape() {
    local text="\$1"
    echo "\$text" | sed 's/&/\&amp;/g; s/</\&lt;/g; s/>/\&gt;/g; s/"/\&quot;/g; s/'"'"'/\&#39;/g'
}
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