Threema Backup to openMittsu contacts file

readme.md

Usage: ./create_contacts.sh -i /path/to/extracted/backup/ -o /path/to/output/file.ext -n args while -n specifies the content of the name field:

• f for first name
• l for last name
• n for nickname
• i for Threema ID
• "character" for a special character/string which acts as a delimiter between fields

You can order the fields as you like and don't have to use all fields.

For example, ./create_contacts.sh -n fl"("n") -"i would create a line like ABCDEF12 : publickey123 : John Doe ( johnny ) - ABCDEF12,

./create_contacts.sh -n lf would be ABCDEF12 : publickey123 : Doe John et cetera.

All arguments are optional, the default arguments are . for -i, contacts.txt for -o and fl"("n")" for -n.

create_contacts.sh

#!/bin/bash

inputdir="."
outputfile="contacts.txt"

firstfields='print $2, ":", $3, ":"'
namefields=', $7, $8, "("$9")"'
id=', $2'
firstname=', $7'
lastname=', $8'
nickname=', $9'

while getopts ":n:i:o:" opt; do
    case $opt in
        n) 
            fieldorder="$OPTARG"
            namefields=""
            ;;
        i)
            inputdir="$OPTSARG"
            ;;
        o)
            outputfile="$OPTSARG"
            ;;
        :) ;;
    esac
done

for (( i=0; i<${#fieldorder}; i++ )); do
      case "${fieldorder:$i:1}" in
        f)
            namefields="${namefields}$firstname"
            ;;
        l) 
            namefields="${namefields}$lastname"
            ;;
        n)
            namefields="${namefields}$nickname"
            ;;
        i)
            namefields="${namefields}$id"
            ;;
        *)
            field=", \"${fieldorder:$i:1}\""
            namefields="${namefields}$field"
            ;; 
    esac
done

awk -F'","|^"|"$' " NR>1 { $firstfields $namefields }" $inputdir/contacts.csv > $outputfile
awk -F'","|^"|"$' ' NR>1 { gsub(";",", ",$6); print $2, ":", $3, ":", $6, ":",$4  }' $inputdir/groups.csv >> $outputfile