sandcastle-ng

sandcastle-amp-form (5426B)

---

 #!/bin/bash
 #
 #  This file is part of TALER
 #  Copyright (C) 2014-2024 Taler Systems SA
 #
 #  TALER is free software; you can redistribute it and/or modify it under the
 #  terms of the GNU General Public License as published by the Free Software
 #  Foundation; either version 3, or (at your option) any later version.
 #
 #  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
 #  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
 #  A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
 #
 #  You should have received a copy of the GNU General Public License along with
 #  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/license>
 #
 
 # Hard error reporting on.
 set -eu
 
 
 # Exit, with error message (hard failure)
 function exit_fail() {
     echo " FAIL: " "$@" >&2
     EXIT_STATUS=1
     exit "$EXIT_STATUS"
 }
 
 CONF="$HOME/.config/taler-exchange.conf"
 VERBOSE=0
 
 while getopts 'aic:hrvV' OPTION;
 do
     case "$OPTION" in
         i)
             echo attributes
             exit 0
             ;;
         a)
             # This AML program expects as inputs a full_name
             # and a birthdate.
             echo "full_name"
             echo "birthdate"
             exit 0
             ;;
         c)
             # shellcheck disable=SC2034
             CONF="$OPTARG"
             ;;
         h)
             echo "This is a KYC measure program that checks the output of a simple FORM submission, and if it passed, increases all limits to EUR:1000. (and does not impose any other limits)"
             echo 'Supported options:'
             echo '  -a           -- show required attributes'
             # shellcheck disable=SC2016
             echo '  -c $CONF     -- set configuration'
             echo '  -h           -- print this help'
             echo '  -r           -- show required context'
             echo '  -v           -- show version'
             echo '  -V           -- be verbose'
             ;;
         r)
             # No context is required.
             exit 0
             ;;
         v)
             echo "$0 v0.0.0"
             exit 0
             ;;
         V)
             VERBOSE=1
             ;;
         ?)
         exit_fail "Unrecognized command line option"
         ;;
     esac
 done
 
 if [ 1 = "$VERBOSE" ]
 then
     echo "Running $0" 1>&2
 fi
 
 # First, check everything we expect is in stdin.
 A=$(jq -r .attributes)
 J=$(echo "$A" | jq -r 'def get($k):
              if has($k)
                then .[$k]
                else error("attribute missing")
            end;
            {"full_name":get("full_name"),
             "birthdate":get("birthdate")}')
 
 
 # Raise investigation if Name contains mallory
 # (Very very crude check for demo purposes)
 TO_INVESTIGATE=false
 if grep -q "Mallory" <<< "$J"; then
   TO_INVESTIGATE=true
 fi
 
 # See https://docs.taler.net/taler-exchange-manual.html#tsref-type-AmlProgramInput
 # for the full JSON with possible inputs.
 
 # New rules apply for 30 days.
 EXPIRATION=$((3600 * 30 + $(date +%s)))
 
 # Read currency from the config
 CURRENCY=$(taler-exchange-config -c $CONF -s exchange -o currency)
 
 # Finally, output the new rules.
 # See https://docs.taler.net/taler-exchange-manual.html#tsref-type-AmlOutcome
 # for the required output format.
 
 jq -n \
     --argjson expiration "$EXPIRATION" \
     --argjson to_investigate "$TO_INVESTIGATE" \
     --arg currency "$CURRENCY" \
     '{ "to_investigate": $to_investigate,
        "new_rules" : {
          "custom_measures" : {},
          "expiration_time" : { "t_s": $expiration },
          "rules" : [
          {
            "operation_type": "WITHDRAW",
            "threshold" : "\($currency):1000",
            "timeframe" : { "d_us" : 3600000000 },
            "measures" : [ "verboten" ],
            "display_priority" : 1,
            "exposed" : true,
            "is_and_combinator" : true
          },
          {
            "operation_type": "DEPOSIT",
            "threshold" : "\($currency):1000",
            "timeframe" : { "d_us" : 3600000000 },
            "measures" : [ "verboten" ],
            "display_priority" : 1,
            "exposed" : true,
            "is_and_combinator" : true
          },
          {
            "operation_type": "AGGREGATE",
            "threshold" : "\($currency):1000",
            "timeframe" : { "d_us" : 3600000000 },
            "measures" : [ "verboten" ],
            "display_priority" : 1,
            "exposed" : true,
            "is_and_combinator" : true
          },
          {
            "operation_type": "MERGE",
            "threshold" : "\($currency):1000",
            "timeframe" : { "d_us" : 3600000000 },
            "measures" : [ "verboten" ],
            "display_priority" : 1,
            "exposed" : true,
            "is_and_combinator" : true
          },
          {
            "operation_type": "BALANCE",
            "threshold" : "\($currency):1000",
            "timeframe" : { "d_us" : 3600000000 },
            "measures" : [ "verboten" ],
            "display_priority" : 1,
            "exposed" : true,
            "is_and_combinator" : true
          },
          {
            "operation_type": "CLOSE",
            "threshold" : "\($currency):1000",
            "timeframe" : { "d_us" : 3600000000 },
            "measures" : [ "verboten" ],
            "display_priority" : 1,
            "exposed" : true,
            "is_and_combinator" : true
          }
          ]
        }
      }' < /dev/null
 
 exit 0