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/*
* This file is part of LibEuFin.
* Copyright (C) 2024 Taler Systems S.A.
* LibEuFin is free software; you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation; either version 3, or
* (at your option) any later version.
* LibEuFin 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 Affero General
* Public License for more details.
* You should have received a copy of the GNU Affero General Public
* License along with LibEuFin; see the file COPYING. If not, see
* <http://www.gnu.org/licenses/>
*/
/* This file contains the Taler Integration API endpoints,
* that are typically requested by wallets. */
package tech.libeufin.bank.api
import io.ktor.http.*
import io.ktor.server.application.*
import io.ktor.server.request.*
import io.ktor.server.response.*
import io.ktor.server.routing.*
import tech.libeufin.bank.*
import tech.libeufin.bank.db.AbortResult
import tech.libeufin.bank.db.Database
import tech.libeufin.bank.db.WithdrawalDAO.WithdrawalSelectionResult
import tech.libeufin.common.TalerErrorCode
fun Routing.bankIntegrationApi(db: Database, ctx: BankConfig) {
get("/taler-integration/config") {
call.respond(TalerIntegrationConfigResponse(
currency = ctx.regionalCurrency,
currency_specification = ctx.regionalCurrencySpec
))
}
// Note: wopid acts as an authentication token.
get("/taler-integration/withdrawal-operation/{wopid}") {
val uuid = call.uuidPath("wopid")
val params = StatusParams.extract(call.request.queryParameters)
val op = db.withdrawal.pollStatus(uuid, params, ctx.wireMethod) ?: throw notFound(
"Withdrawal operation '$uuid' not found",
TalerErrorCode.BANK_TRANSACTION_NOT_FOUND
)
call.respond(op.copy(
suggested_exchange = ctx.suggestedWithdrawalExchange,
confirm_transfer_url = if (op.status == WithdrawalStatus.pending || op.status == WithdrawalStatus.selected) call.request.withdrawConfirmUrl(uuid) else null
))
}
post("/taler-integration/withdrawal-operation/{wopid}") {
val uuid = call.uuidPath("wopid")
val req = call.receive<BankWithdrawalOperationPostRequest>()
val res = db.withdrawal.setDetails(
uuid, req.selected_exchange, req.reserve_pub
)
when (res) {
is WithdrawalSelectionResult.UnknownOperation -> throw notFound(
"Withdrawal operation '$uuid' not found",
TalerErrorCode.BANK_TRANSACTION_NOT_FOUND
)
is WithdrawalSelectionResult.AlreadySelected -> throw conflict(
"Cannot select different exchange and reserve pub. under the same withdrawal operation",
TalerErrorCode.BANK_WITHDRAWAL_OPERATION_RESERVE_SELECTION_CONFLICT
)
is WithdrawalSelectionResult.RequestPubReuse -> throw conflict(
"Reserve pub. already used",
TalerErrorCode.BANK_DUPLICATE_RESERVE_PUB_SUBJECT
)
is WithdrawalSelectionResult.UnknownAccount -> throw conflict(
"Account ${req.selected_exchange} not found",
TalerErrorCode.BANK_UNKNOWN_ACCOUNT
)
is WithdrawalSelectionResult.AccountIsNotExchange -> throw conflict(
"Account ${req.selected_exchange} is not an exchange",
TalerErrorCode.BANK_ACCOUNT_IS_NOT_EXCHANGE
)
is WithdrawalSelectionResult.Success -> {
call.respond(BankWithdrawalOperationPostResponse(
transfer_done = res.status == WithdrawalStatus.confirmed,
status = res.status,
confirm_transfer_url = if (res.status == WithdrawalStatus.pending || res.status == WithdrawalStatus.selected) call.request.withdrawConfirmUrl(uuid) else null
))
}
}
}
post("/taler-integration/withdrawal-operation/{wopid}/abort") {
val uuid = call.uuidPath("wopid")
when (db.withdrawal.abort(uuid)) {
AbortResult.UnknownOperation -> throw notFound(
"Withdrawal operation '$uuid' not found",
TalerErrorCode.BANK_TRANSACTION_NOT_FOUND
)
AbortResult.AlreadyConfirmed -> throw conflict(
"Cannot abort confirmed withdrawal",
TalerErrorCode.BANK_ABORT_CONFIRM_CONFLICT
)
AbortResult.Success -> call.respond(HttpStatusCode.NoContent)
}
}
}
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