Irrlicht
a0de6e56b2
The 5 digits IDs should be generated using a proper method like using actual dice.
124 lines
3 KiB
Shell
Executable file
124 lines
3 KiB
Shell
Executable file
#!/bin/bash
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shopt -s extglob
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##########
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# Config #
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# Path to the Diceware ID list
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# DICEWARE_PATH=
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print_help() {
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echo "diceware [-l | --list] [<args>]"
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echo ""
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echo "Given a number, asked for as many 5 digits numbers and print the resulting password using the diceware word list."
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echo ""
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echo "With no option, expect a non zero positive integer for the number of words the script should expect. With the <list> option, expect a list of 5 digits numbers to select the words in the diceware word list."
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echo ""
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echo "Expects the envrionment variable DICEWARE_PATH to be defined and pointing to a file that is a diceware word list. The structure should be in two columns, the first being the 5 digits ID and the second the corresponding word."
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}
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is_valid_id() {
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if [ ! ${#1} == 5 ]; then
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echo "${1} is not a valid id."
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return 1
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fi
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for ((i=0; i < ${#1}; i++)); do
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digit=${1:$i:1}
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if [ $digit -lt 1 -o $digit -gt 6 ]; then
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echo "${1} is not a valid id."
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return 1
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fi
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done
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return 0
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}
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error_not_enough_number() {
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echo "Number ${1} too low: it is not safe to generate a password of less than 6 words!"
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exit 1
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}
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read_word_id_list() {
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local counter=0
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local word_number=${word_id_list[0]}
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# Remove first element which is the number or IDs expected
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word_id_list=(${word_id_list[@]:1:${#word_id_list[@]}})
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while [ $counter -lt $word_number ]; do
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read -p "Enter next number: " number
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is_valid_id $number
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if [ $? -gt 0 ]; then
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echo "$number is not a valid number!"
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else
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word_id_list+=($number)
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((counter++))
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fi
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done
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}
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##################
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# Begin commands #
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if [ ! $DICEWARE_PATH ]; then
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echo "No or invalid path to the word list!"
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echo "DICEWARE_PATH=$DICEWARE_PATH"
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exit 2
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fi
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word_id_list=()
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word_number_limit=6
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mode_list=0
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# Parsing option
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while [ $# -gt 0 ]
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do
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case ${1} in
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+([[:digit:]]))
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word_id_list+=($1)
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shift
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;;
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-l|--list)
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mode_list=1
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shift
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;;
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-h|--help)
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print_help
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exit 0
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;;
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*)
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echo "Invalid argument: $1."
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exit 1
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;;
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esac
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done
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if [ ${#word_id_list} -eq 0 ]; then
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echo "Need to specify a number of a list of IDs"
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exit 1
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fi
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if [ ${mode_list} -eq 0 -a ${word_id_list[0]} -lt ${word_number_limit} ]; then
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error_not_enough_number ${word_id_list[0]}
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fi
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if [ $mode_list -eq 0 ]; then
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read_word_id_list
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fi
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if [ ${#word_id_list[@]} -lt 6 ]; then
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error_not_enough_number ${#word_id_list[@]}
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fi
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# Check IDs are valid
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for word_id in ${word_id_list[@]}; do
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is_valid_id $word_id
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if [ $? -gt 0 ]; then
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exit $?
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fi
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done
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# Get the actual word
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password=()
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for word_id in ${word_id_list[@]}; do
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password+=($(grep ${word_id} ${DICEWARE_PATH} | awk '{ print $2 }'))
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done
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# Join everything in one string
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echo "${password[@]} "
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exit 0
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