bash/nano-crypt/ccrypt-nano

   1 #!/bin/sh
   2 #Binaries:
   3 EDITOR='/usr/bin/nano';
   4 ccrypt='/usr/bin/ccrypt'
   5 LAZYTEE='./tee-lazy'
   6
   7 #code##############################################
   8 #if [[ -z "$EDITOR" ]]; then EDITOR='/usr/bin/nano'; fi;
   9 CRYPTFILE="$1"
  10 TMPPIPE="/tmp/ccrypt-nano-pipe-$UID-$$"
  11
  12 if [[ -z "$CRYPTFILE" ]]; then
  13         echo Usage: "$0" file.txt.cpt;
  14         echo "
  15 This script allows you to create/edit ccenrypted textfiles using nano.
  16 There is no copy of unencrypted file on filesystem everything is in pipes.
  17 You can use this as secure way to keep your passwords or phone numbers (etc...).
  18 Check man ccrypt & man nano for more informations."
  19         exit;
  20 fi;
  21
  22 if [[ -a "$CRYPTFILE" ]]; then
  23         false;
  24         while [[ $? != 0 ]]; do
  25                 echo -ne '\nEnter password: '
  26                 stty -echo; read KEY; stty echo;
  27                 $ccrypt -c "$CRYPTFILE" -K "$KEY" > /dev/null;
  28         done;
  29 else
  30         KEY=a; KEYY=b;
  31         while [[ "$KEY" != "$KEYY" ]]; do
  32           echo -ne '\n\nEnter password: '
  33                 stty -echo; read KEY; stty echo;
  34           echo -ne '\nEnter password (again): '
  35                 stty -echo; read KEYY; stty echo;
  36         done;
  37 fi;
  38
  39 handle_crypt_pipe() {
  40         rm -rf "$2";
  41         mkfifo "$2";
  42         chmod a-rwx "$2";
  43         chmod u+rw "$2";
  44
  45         $ccrypt -d -c -K "$3" "$1" > "$2";
  46
  47         while [[ -a "$2" ]]; do
  48                 cat "$2" | $ccrypt -e -K "$3" | $LAZYTEE "$1";
  49         done;
  50 }
  51
  52 handle_crypt_pipe "$CRYPTFILE" "$TMPPIPE" "$KEY" &
  53 $EDITOR "$TMPPIPE"
  54 rm -rf "$TMPPIPE"
  55 kill -s SIGINT  $(jobs -p); > /dev/null 2>&1
  56 kill -s SIGKILL $(jobs -p); > /dev/null 2>&1
  57