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#!/bin/sh
# Files decryption plugin for Clifm
# Decrypt a file passed as parameter using gpg(1)
# Author: L. Abramovich
# License: GPL2+
# Dependencies: gpg, tar, sed, grep
if [ -z "$1" ] || [ "$1" = "--help" ] || [ "$1" = "-h" ]; then
name="${CLIFM_PLUGIN_NAME:-$(basename "$0")}"
printf "Decrypt a GnuPG encrypted file\n" >&2
printf "\n\x1b[1mUSAGE\x1b[0m\n %s FILE\n\n" "$name" >&2
printf "Note: You will be given the options to extract the unencrypted\n\
file (if archived) and then to remove the original encrypted file\n" >&2
exit 0
fi
if [ -n "$2" ]; then
printf "clifm: Only one file can be decrypted at a time\n" >&2
exit 1
fi
# 1. Check deps
if ! type gpg >/dev/null 2>&1; then
printf "clifm: gpg: Command not found\n" >&2
exit 127
fi
if ! type tar >/dev/null 2>&1; then
printf "clifm: tar: Command not found\n" >&2
exit 127
fi
if ! type sed >/dev/null 2>&1; then
printf "clifm: sed: Command not found\n" >&2
exit 127
fi
if ! type grep >/dev/null 2>&1; then
printf "clifm: grep: Command not found\n" >&2
exit 127
fi
# Fix backspace when taking input via read
stty erase ^H
# 2. Decrypt the file
file="$(echo "$1" | sed 's/\\//g')"
case "$file" in
*".gpg")
if ! gpg --decrypt --output "${file}.dec" "$file"; then
exit 1
fi
if echo "$file" | grep -q "\.tar"; then
while [ "$answer" != "y" ] && [ "$answer" != "n" ]; do
printf "Extract tar archive? [y/n] "
read -r answer
done
if [ "$answer" = "y" ]; then
tar -xf "${file}.dec"
rm -f -- "${file}.dec"
fi
fi
;;
*)
printf "clifm: %s: Not a GnuPG encrypted file\n" "$file" >&2
exit 1
;;
esac
while [ "$answer" != "y" ] && [ "$answer" != "n" ]; do
printf "Remove original encrypted file? [y/n] "
read -r answer
done
if [ "$answer" = "y" ]; then
rm -rf -- "$file"
fi
echo "rf" > "$CLIFM_BUS"
exit 0
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