taler-exchange-helper-measure-preserve-set-expiration (3325B)
1 #!/bin/bash 2 # 3 # This file is part of TALER 4 # Copyright (C) 2024 Taler Systems SA 5 # 6 # TALER is free software; you can redistribute it and/or modify it under the 7 # terms of the GNU General Public License as published by the Free Software 8 # Foundation; either version 3, or (at your option) any later version. 9 # 10 # TALER is distributed in the hope that it will be useful, but WITHOUT ANY 11 # WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR 12 # A PARTICULAR PURPOSE. See the GNU General Public License for more details. 13 # 14 # You should have received a copy of the GNU General Public License along with 15 # TALER; see the file COPYING. If not, If not, see <http://www.gnu.org/license> 16 # 17 18 # Hard error reporting on. 19 set -eu 20 21 22 23 # Exit, with error message (hard failure) 24 function exit_fail() { 25 echo " FAIL: " "$@" >&2 26 EXIT_STATUS=1 27 exit "$EXIT_STATUS" 28 } 29 30 CONF="$HOME/.config/taler-exchange.conf" 31 VERBOSE=0 32 33 while getopts 'ac:hirvV' OPTION; 34 do 35 case "$OPTION" in 36 a) 37 # No attributes are required. 38 exit 0 39 ;; 40 c) 41 # shellcheck disable=SC2034 42 CONF="$OPTARG" 43 ;; 44 h) 45 echo "This is a KYC measure program that preserves the current rules of an account, but sets expiration rules based on the context." 46 echo 'Supported options:' 47 echo ' -a -- show required attributes' 48 # shellcheck disable=SC2016 49 echo ' -c $CONF -- set configuration' 50 echo ' -h -- print this help' 51 echo ' -i -- show required inputs' 52 echo ' -r -- show required context' 53 echo ' -v -- show version' 54 echo ' -V -- be verbose' 55 exit 0 56 ;; 57 i) 58 # Need context and current_rules. 59 echo "context" 60 echo "current_rules" 61 echo "default_rules" 62 exit 0 63 ;; 64 r) 65 # Need expiration time and successor measure. 66 echo "expiration_time" 67 echo "successor_measure" 68 exit 0 69 ;; 70 v) 71 echo "$0 v0.0.0" 72 exit 0 73 ;; 74 V) 75 VERBOSE=1 76 ;; 77 ?) 78 exit_fail "Unrecognized command line option" 79 ;; 80 esac 81 done 82 83 if [ 1 = "$VERBOSE" ] 84 then 85 echo "Running $0" 1>&2 86 fi 87 88 # See https://docs.taler.net/taler-kyc-manual.html#tsref-type-AmlProgramInput 89 # for the full JSON with possible inputs. 90 91 # First, extract inputs we need 92 INPUTS=$(jq '{"current_rules":(.current_rules // .default_rules // error("neither current_rules nor default_rules provided")),"context":.context}') 93 94 # Get context values. 95 EXPIRATION_TIME=$(echo "$INPUTS" | jq '.context.expiration_time // null') 96 SUCCESSOR_MEASURE=$(echo "$INPUTS" | jq '.context.successor_measure // null') 97 98 # Finally, output the new rules. 99 # See https://docs.taler.net/taler-kyc-manual.html#tsref-type-AmlOutcome 100 # for the required output format. 101 102 echo "$INPUTS" \ 103 | jq \ 104 --argjson et "$EXPIRATION_TIME" \ 105 --argjson sm "$SUCCESSOR_MEASURE" \ 106 '.current_rules+{"new_rules":(.new_rules+{"expiration_time":$et,"successor_measure":$sm})}|del(..|nulls)' 107 108 exit 0