git.plutz.net Git - shellwiki/blob - attachment.sh

   1 #!/bin/sh
   2
   3 attachment_convert(){
   4   local attpath="$1"
   5   local cachepath="${attpath%/#attachments/*}/#cache/${attpath#*/#attachments/}"
   6   local res junk
   7
   8   case $attpath in
   9     *.webm|*.mp4|*.mkv|*.avi)
  10       cachepath="${cachepath}.webm"
  11       ;;
  12   esac
  13
  14   if [ -s "$cachepath" ]; then
  15     printf %s "$cachepath"
  16     return 0
  17   elif [ -f "$cachepath" ]; then
  18     printf %s "$attpath"
  19     return 0
  20   elif ! touch "$cachepath"; then
  21     printf %s "$attpath"
  22     return 0
  23   fi
  24
  25   case $attpath in
  26     *.jpg|*.jpeg|*.png)
  27       read junk junk res junk <<-EOF
  28         $(identify "$attpath")
  29         EOF
  30       if [ "${res%x*}" -gt 2048 ]; then
  31         convert "$attpath" -resize 1920x-2 -quality 85 "$cachepath"
  32       else
  33         convert "$attpath" -quality 85 "$cachepath"
  34       fi
  35       printf %s "$cachepath"
  36       return 0
  37     ;;
  38     *.webm|*.mp4|*.mkv|*.avi)
  39       res=$(ffprobe -show_entries stream=width "$attpath" 2>&-)
  40       res="${res#*width=}" res="${res%%${BR}*}"
  41       if [ "$res" -gt 1280 ]; then
  42         ( ffmpeg -y -nostdin -i "$attpath" \
  43           -c:v libvpx -vf scale=1280:-2 -crf 28 -b:v 0 \
  44           -c:a libvorbis -q:a 6 \
  45           "${cachepath%.*}.tmp.webm" \
  46           && mv -- "${cachepatch%.*}.tmp.webm" "${cachepath}" \
  47         & ) &
  48
  49       else
  50         ( ffmpeg -y -nostdin -i "$attpath" \
  51           -c:v libvpx -crf 28 -b:v 0 \
  52           -c:a libvorbis -q:a 6 \
  53           "${cachepath%.*}.tmp.webm" \
  54           && mv -- "${cachepatch%.*}.tmp.webm" "${cachepath}" \
  55         & ) &
  56       fi
  57       printf %s "$attpath"
  58       return 0
  59     ;;
  60   esac
  61 }
  62
  63 if [ "${PATH_INFO%/\[attachment\]/}"  != "${PATH_INFO}" ]; then
  64   theme_attachments "${PATH_INFO%\[attachment\]/}"
  65
  66 elif [ "${PATH_INFO%/\[attachment\]/*}" != "${PATH_INFO}" ]; then
  67   attpath="${PATH_INFO%/\[attachment\]/*}/#attachments/${PATH_INFO##*/}"
  68   if [ -f "$_DATA/pages/$attpath" ]; then
  69     FILE "$_DATA/pages/$attpath"
  70   elif [ -f "$_EXEC/pages/$attpath" ]; then
  71     FILE "$_EXEC/pages/$attpath"
  72   else
  73     theme_404
  74   fi
  75   exit 0;
  76
  77 elif [ "${PATH_INFO%/}" = "${PATH_INFO}" ]; then
  78   attpath="${PATH_INFO%/*}/#attachments/${PATH_INFO##*/}"
  79   if [ -f "$_DATA/pages/$attpath" ]; then
  80     FILE "$(attachment_convert "$_DATA/pages/$attpath")"
  81   elif [ -f "$_EXEC/pages/$attpath" ]; then
  82     FILE "$(attachment_convert "$_EXEC/pages/$attpath")"
  83   elif [ -d "$_DATA/pages/${PATH_INFO}" -o -d "$_EXEC/pages/${PATH_INFO}" ]; then
  84     REDIRECT "${_BASE}${PATH_INFO}/"
  85   fi
  86   exit 0
  87
  88 fi