dhtml.sh

   1 #!/bin/bash
   2
   3 #########################################################################
   4 # This program is free software: you can redistribute it and/or modify  #
   5 # it under the terms of the version 3 of the GNU General Public License #
   6 # as published by the Free Software Foundation.                         #
   7 #                                                                       #
   8 # This program is distributed in the hope that it will be useful, but   #
   9 # WITHOUT ANY WARRANTY; without even the implied warranty of            #
  10 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU      #
  11 # General Public License for more details.                              #
  12 #                                                                       #
  13 # You should have received a copy of the GNU General Public License     #
  14 # along with this program. If not, see <http://www.gnu.org/licenses/>.  #
  15 #                                                                       #
  16 # Written by and Copyright (C) Francois Fleuret                         #
  17 # Contact <francois@fleuret.org> for comments & bug reports             #
  18 #########################################################################
  19
  20 set -e
  21 set -o pipefail
  22
  23 function hsize () {
  24     size=$1
  25
  26     if [[ ${size} -lt 1024 ]]
  27     then
  28         size_h=${size}b
  29     elif [[ ${size} -lt 1048576 ]]
  30     then
  31         size_h=$(bc <<<"scale=1;${size} / 1024.0")Kb
  32     elif [[ ${size} -lt 1073741824 ]]
  33     then
  34         size_h=$(bc <<<"scale=1;${size} / (1024.0*1024.0)")Mb
  35     else
  36         size_h=$(bc <<<"scale=2;${size} / (1024.0*1024.0*1024.0)")Gb
  37     fi
  38
  39     echo ${size_h}
  40 }
  41
  42 while read line
  43 do
  44
  45     while [[ ${line} =~ @DATE ]]
  46     do
  47         DATE=$(date)
  48         line=$(sed -e "s/@DATE/${DATE}/" <<<"${line}")
  49     done
  50
  51     while [[ ${line} =~ @EXEC ]]
  52     do
  53         command=$(sed -e "s/^.*@EXEC{\([^}]*\)}.*$/\1/" <<<"${line}")
  54         prefix=$(sed -e "s/\(^.*\)@EXEC.*$/\1/" <<<"${line}")
  55         suffix=$(sed -e "s/^.*@EXEC{[^}]*}\(.*\)$/\1/" <<<"${line}")
  56         line=${prefix}$(${command})$suffix
  57     done
  58
  59     while [[ ${line} =~ @SIZE ]]
  60     do
  61         filename=$(sed -e "s/^.*@SIZE{\([^}]*\)}.*$/\1/" <<<"${line}")
  62         if [[ ${filename} =~ ^http ]]
  63         then
  64             filesize=$(curl -LsI "${filename}" | grep -i ^Content-Length: | sed -e 's/^[^:]*: \([0-9]*\).*$/\1/')
  65         else
  66             filesize=$(stat -c %s "${filename}")
  67         fi
  68         filesize_h=$(hsize ${filesize})
  69         line=$(sed -e "s/@SIZE{\([^}]*\)}/${filesize_h}/" <<<"${line}")
  70     done
  71
  72     while [[ ${line} =~ @URLDATE ]]
  73     do
  74         filename=$(sed -e "s/^.*@URLDATE{\([^}]*\)}.*$/\1/" <<<"${line}")
  75         timestamp=$(curl -Lv "${filename}" 2>&1 | \grep '^< Last-Modified:' | sed -e 's/^.*Last-Modified: *//')
  76         timestamp=$(date -d "${timestamp}" +'%b %e, %Y')
  77         line=$(sed -e "s/@URLDATE{\([^}]*\)}/${timestamp}/" <<<"${line}")
  78     done
  79
  80     while [[ ${line} =~ @FILEDATE ]]
  81     do
  82         filename=$(sed -e "s/^.*@FILEDATE{\([^}]*\)}.*$/\1/" <<<"${line}")
  83         filedate=$(date +'%b %e, %Y' -r "${filename}")
  84         line=$(sed -e "s/@FILEDATE{\([^}]*\)}/${filedate}/" <<<"${line}")
  85     done
  86
  87     echo "${line}"
  88 done