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/*
* This file is part of LibEuFin.
* Copyright (C) 2023 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/>
*/
import io.ktor.client.plugins.*
import io.ktor.client.request.*
import io.ktor.client.statement.*
import io.ktor.http.*
import java.time.Duration
import java.time.Instant
import java.time.temporal.ChronoUnit
import java.util.concurrent.TimeUnit
import kotlin.test.*
import kotlinx.coroutines.*
import org.junit.Test
import tech.libeufin.bank.*
import tech.libeufin.bank.db.AccountDAO.*
import tech.libeufin.util.*
class DatabaseTest {
// Testing the helper that creates the admin account.
@Test
fun createAdmin() = setup { db, ctx ->
// Create admin account
assertEquals(AccountCreationResult.Success, maybeCreateAdminAccount(db, ctx))
// Checking idempotency
assertEquals(AccountCreationResult.LoginReuse, maybeCreateAdminAccount(db, ctx))
}
@Test
fun serialisation() = bankSetup {
assertBalance("customer", "+KUDOS:0")
assertBalance("merchant", "+KUDOS:0")
coroutineScope {
repeat(10) {
launch {
tx("customer", "KUDOS:0.$it", "merchant", "concurrent $it")
}
}
}
assertBalance("customer", "-KUDOS:4.5")
assertBalance("merchant", "+KUDOS:4.5")
coroutineScope {
repeat(5) {
launch {
tx("customer", "KUDOS:0.0$it", "merchant", "concurrent 0$it")
}
launch {
client.getA("/accounts/merchant/transactions").assertOk()
}
}
}
}
@Test
fun challenge() = setup { db, _ -> db.conn { conn ->
val createStmt = conn.prepareStatement("SELECT challenge_create(?,?,?,?)")
val sendStmt = conn.prepareStatement("SELECT challenge_mark_sent(?,?,?)")
val tryStmt = conn.prepareStatement("SELECT ok, no_retry FROM challenge_try(?,?,?)")
val resendStmt = conn.prepareStatement("SELECT challenge_resend(?,?,?,?,?)")
val validityPeriod = Duration.ofHours(1)
val retransmissionPeriod: Duration = Duration.ofMinutes(1)
val retryCounter = 3
fun create(code: String, now: Instant): Long {
createStmt.setString(1, code)
createStmt.setLong(2, ChronoUnit.MICROS.between(Instant.EPOCH, now))
createStmt.setLong(3, TimeUnit.MICROSECONDS.convert(validityPeriod))
createStmt.setInt(4, retryCounter)
return createStmt.oneOrNull { it.getLong(1) }!!
}
fun send(id: Long, now: Instant) {
sendStmt.setLong(1, id)
sendStmt.setLong(2, ChronoUnit.MICROS.between(Instant.EPOCH, now))
sendStmt.setLong(3, TimeUnit.MICROSECONDS.convert(retransmissionPeriod))
return sendStmt.oneOrNull { }!!
}
fun cTry(id: Long, code: String, now: Instant): Pair<Boolean, Boolean> {
tryStmt.setLong(1, id)
tryStmt.setString(2, code)
tryStmt.setLong(3, ChronoUnit.MICROS.between(Instant.EPOCH, now))
return tryStmt.oneOrNull {
Pair(it.getBoolean(1), it.getBoolean(2))
}!!
}
fun resend(id: Long, code: String, now: Instant): String? {
resendStmt.setLong(1, id)
resendStmt.setString(2, code)
resendStmt.setLong(3, ChronoUnit.MICROS.between(Instant.EPOCH, now))
resendStmt.setLong(4, TimeUnit.MICROSECONDS.convert(validityPeriod))
resendStmt.setInt(5, retryCounter)
return resendStmt.oneOrNull { it.getString(1) }
}
val now = Instant.now()
val expired = now + validityPeriod
val retransmit = now + retransmissionPeriod
// Check basic
create("good-code", now).run {
// Bad code
assertEquals(Pair(false, false), cTry(this, "bad-code", now))
// Good code
assertEquals(Pair(true, false), cTry(this, "good-code", now))
// Never resend a confirmed challenge
assertNull(resend(this, "new-code", expired))
// Confirmed challenge always ok
assertEquals(Pair(true, false), cTry(this, "good-code", now))
}
// Check retry
create("good-code", now).run {
send(this, now)
// Bad code
repeat(retryCounter) {
assertEquals(Pair(false, false), cTry(this, "bad-code", now))
}
// Good code fail
assertEquals(Pair(false, true), cTry(this, "good-code", now))
// New code
assertEquals("new-code", resend(this, "new-code", now))
// Good code
assertEquals(Pair(true, false), cTry(this, "new-code", now))
}
// Check retransmission and expiration
create("good-code", now).run {
// Failed to send retransmit
assertEquals("good-code", resend(this, "new-code", now))
// Code successfully sent and still valid
send(this, now)
assertNull(resend(this, "new-code", now))
// Code is still valid but shoud be resent
assertEquals("good-code", resend(this, "new-code", retransmit))
// Good code fail because expired
assertEquals(Pair(false, false), cTry(this, "good-code", expired))
// New code because expired
assertEquals("new-code", resend(this, "new-code", expired))
// Code successfully sent and still valid
send(this, expired)
assertNull(resend(this, "another-code", expired))
// Old code no longer workds
assertEquals(Pair(false, false), cTry(this, "good-code", expired))
// New code works
assertEquals(Pair(true, false), cTry(this, "new-code", expired))
}
}}
// Testing iban payto uri normalization
@Test
fun ibanPayto() = setup { _, _ ->
val expected = "payto://iban/CH9300762011623852957"
val inputs = listOf(
"payto://iban/BIC/CH9300762011623852957?receiver-name=NotGiven",
"payto://iban/ch%209300-7620-1162-3852-957",
)
for (input in inputs) {
assertEquals(expected, IbanPayTo(input).canonical)
}
}
}
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