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#!/bin/bash
# This file is in the public domain.
#
# This script configure and launches libeufin-bank.
# The setup provides the admin account at the bank, and
# another account for the exchange at the bank.
#
# The environment must provide the following variables:
# - BANK_ADMIN_PASSWORD: password of the Netzbon administrator.
# - BANK_EXCHANGE_PASSWORD: password of the exchange
# bank account hosted at Sandbox. The related
# username is: exchange-at-sandbox
# - BANK_NAME: human-readable name for the bank
# - DOMAIN_NAME: DNS domain name to use for the setup
# - ENABLE_TLS (http or https?)
#
# OUTPUTS:
#
# EXCHANGE_PAYTO -- payto-URI of the exchange
# EXCHANGE_WIRE_GATEWAY_URL -- URL of the wire gateway for the exchange
set -eu
source functions.sh
source config/user.conf
source config/internal.conf
if test -z "${BANK_NAME:-}"; then
say "Error: config/user.conf does not specify BANK_NAME"
exit 1
fi
if test -z "${DOMAIN_NAME:-}"; then
say "Error: config/user.conf does not specify DOMAIN_NAME"
exit 1
fi
if test -z "${BANK_ADMIN_PASSWORD:-}"; then
say "Error: config/user.conf does not specify BANK_ADMIN_PASSWORD"
exit 1
fi
if test -z "${BANK_EXCHANGE_PASSWORD:-}"; then
say "Error: config/user.conf does not specify BANK_EXCHANGE_PASSWORD"
exit 1
fi
say "Configure the bank with ${CURRENCY}..."
cat <<EOF > /etc/libeufin/libeufin-bank.conf
[libeufin-bank]
CURRENCY=${CURRENCY}
DEFAULT_EXCHANGE=${PROTO}://exchange.${DOMAIN_NAME}
SERVE=tcp
PORT=${BANK_PORT}
ALLOW_CONVERSION=yes
FIAT_CURRENCY=${FIAT_CURRENCY}
TAN_SMS=libeufin-tan-sms.sh
TAN_EMAIL=libeufin-tan-email.sh
ALLOW_EDIT_CASHOUT_PAYTO_URI=yes
ALLOW_REGISTRATIONS=no
[CURRENCY-NETZBON]
enabled=yes
name=NetzBon
code=NETZBON
fractional_input_digits=2
fractional_normal_digits=2
fractional_trailing_zero_digits=2
alt_unit_names={"0":"NETZBON"}
EOF
# FIXME: include this in the bank _and_ make sure it gets loaded
say "Setting up libeufin-bank admin account..."
sudo -u libeufin-bank \
libeufin-bank passwd \
-c /etc/libeufin/libeufin-bank.conf \
admin "${BANK_ADMIN_PASSWORD}"
say "Setting up admin's debt limit..."
sudo -u libeufin-bank \
libeufin-bank edit-account \
-c /etc/libeufin/libeufin-bank.conf \
admin --debit_threshold=${CURRENCY}:200000000
say "Setting up SPA configuration..."
echo "settings = { bankName: \"${BANK_NAME}\" }" >/etc/libeufin/settings.js
say "Create exchange account..."
if test -z "${EXCHANGE_PAYTO:-}"; then
EXCHANGE_PAYTO_NEW="$(sudo -u libeufin-bank libeufin-bank create-account -c /etc/libeufin/libeufin-bank.conf --username exchange --password "${BANK_EXCHANGE_PASSWORD}" --name Exchange --exchange)?receiver-name=Exchange"
echo "EXCHANGE_PAYTO=\"${EXCHANGE_PAYTO_NEW}\"" >> config/internal.conf
fi
if test -z "${EXCHANGE_WIRE_GATEWAY_URL:-}"; then
EXCHANGE_WIRE_GATEWAY_URL_NEW="${PROTO}://bank.$DOMAIN_NAME/accounts/exchange/taler-wire-gateway/"
echo "EXCHANGE_WIRE_GATEWAY_URL=\"${EXCHANGE_WIRE_GATEWAY_URL_NEW}\"" >> config/internal.conf
fi
say "Start the bank..."
systemctl enable --now libeufin-bank
say "Waiting for the bank (/config)..."
curl --max-time 2 \
--retry-all-errors \
--retry-delay 4 \
--retry 10 \
${PROTO}://bank.${DOMAIN_NAME}/config
say "DONE"
say "Setting conversion figures..."
curl -u "admin:${BANK_ADMIN_PASSWORD}" \
-H 'Content-Type: application/json; charset=utf-8' \
${PROTO}://bank.${DOMAIN_NAME}/conversion-info/conversion-rate \
--data-binary @- << EOF
{
"cashin_ratio": "1",
"cashin_fee": "${CURRENCY}:0",
"cashin_tiny_amount": "${CURRENCY}:2",
"cashin_rounding_mode": "nearest",
"cashin_min_amount": "${FIAT_CURRENCY}:1",
"cashout_ratio": "1",
"cashout_fee": "${FIAT_CURRENCY}:0",
"cashout_tiny_amount": "${FIAT_CURRENCY}:2",
"cashout_rounding_mode": "zero",
"cashout_min_amount": "${CURRENCY}:1"
}
EOF
say "DONE"
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