config/dc-filter

   1 #!/bin/sh
   2 trap "" SIGHUP SIGPIPE
   3 if [ ! -d $HOME/dc ]; then mkdir $HOME/dc; fi
   4 if [ ! -d $HOME/dc/done ]; then mkdir $HOME/dc/done; fi
   5 if [ ! -d $HOME/dc/resume ]; then mkdir $HOME/dc/resume; fi
   6 if [ ! -d $HOME/dc/users ]; then mkdir $HOME/dc/users; fi
   7 exec 2>>$HOME/dc/filterlog
   8 cd $HOME/dc
   9 unset speedrec
  10 for dir in /usr/libexec /usr/local/libexec; do
  11     if [ -x "${dir}/speedrec" ]; then
  12         speedrec="${dir}/speedrec"
  13     fi
  14 done
  15 if [ -z "$speedrec" ]; then
  16     echo "could not find speedrec - using cat instead" >&2
  17 fi
  18 maxsize=0
  19 unset resfile
  20 unset infofile
  21 found=y
  22 while [ -z "$resfile" -a "$found" = y ]; do
  23     unset found
  24     for file in resume/*.info; do
  25         if [ ! -r "$file" ]; then continue; fi
  26         . "$file"
  27         if [ "$filesize" -eq "$2" ]; then
  28             thisfile="${file%.info}"
  29             if [ ! -e "${thisfile}.lock" ]; then
  30                 size="$(wc -c <"$thisfile")"
  31                 found=y
  32                 if [ "$size" -gt "$maxsize" ]; then
  33                     maxsize="$size"
  34                     resfile="$thisfile"
  35                     infofile="$file"
  36                 fi
  37             fi
  38         fi
  39     done
  40     if [ -n "$resfile" ]; then
  41         if ! locktouch "${resfile}.lock"; then
  42             unset resfile
  43         fi
  44     fi
  45 done
  46 unset "${!dcarg_@}"
  47 if [ -n "$resfile" ]; then
  48     . "${resfile}.info"
  49 fi
  50 origname="$1"
  51 shift
  52 filesize="$1"
  53 shift
  54 peername="$1"
  55 shift
  56 while [ $# -gt 1 ]; do
  57     rec="$1"
  58     shift
  59     val="$1"
  60     shift
  61     declare "dcarg_$rec"="$val"
  62 done
  63 if [ -z "$resfile" ]; then
  64     resfile="$(mktemp resume/resXXXXXX)"
  65     chmod 644 "$resfile"
  66     maxsize=0
  67     >"${resfile}.lock"
  68 fi
  69 declare -p origname filesize "${!dcarg_@}" >"${resfile}.info"
  70 echo "resume $maxsize"
  71 if [ -z "$speedrec" ]; then
  72     cat >>"$resfile"
  73 else
  74     peerfile="$(tr / _ <<<"$peername")"
  75     "$speedrec" "$HOME/dc/users/$peerfile" >>"$resfile"
  76 fi
  77 size="$(wc -c <"$resfile")"
  78 if [ "$size" -eq 0 ]; then
  79     rm -f "$resfile" "${resfile}.info" "${resfile}.lock"
  80     exit 1
  81 fi
  82 rm -f "${resfile}.lock"
  83 if [ "$size" -lt "$filesize" ]; then
  84     exit 1   # Exit code != 0 means restart transfer
  85 fi
  86 rm -f "${resfile}.info"
  87
  88 destdir="$HOME/dc/done"
  89
  90 newname="$destdir"/"$origname"
  91 if [ -e "$newname" ]; then
  92     newname="$(mktemp "${newname}XXXXXX")"
  93 fi
  94 mv "$resfile" "$newname"
  95 if [ -x $HOME/dc/complete ]; then
  96     export "${!dcarg_@}"
  97     exec $HOME/dc/complete "$newname"
  98 fi
  99 exit 0