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Updated on 2026-08-14

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Tangem 2023-12-27 18:50:39 +03:00
parent bbcdc778fa
commit 8c6372e398
13 changed files with 136 additions and 82 deletions
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41
data/wallets/src/main/java/com/tangem/data/wallets/DefaultWalletAddressServiceRepository.kt
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@ -1,16 +1,19 @@
package com.tangem.data.wallets
import androidx.core.text.isDigitsOnly
import com.tangem.blockchain.blockchains.near.NearWalletManager
import com.tangem.blockchain.common.Blockchain
import com.tangem.domain.tokens.model.Network
import com.tangem.domain.walletmanager.WalletManagersFacade
import com.tangem.domain.wallets.models.UserWalletId
import com.tangem.domain.wallets.repository.WalletAddressServiceRepository
import java.math.BigInteger
class DefaultWalletAddressServiceRepository(
private val walletManagersFacade: WalletManagersFacade,
) : WalletAddressServiceRepository {
override suspend fun validate(userWalletId: UserWalletId, network: Network, address: String): Boolean {
override suspend fun validateAddress(userWalletId: UserWalletId, network: Network, address: String): Boolean {
val blockchain = Blockchain.fromId(network.id.value)
return if (blockchain.isNear()) {
@ -25,7 +28,43 @@ class DefaultWalletAddressServiceRepository(
}
}
override fun validateMemo(network: Network, memo: String): Boolean {
if (memo.isEmpty()) return true
return when (network.id.value) {
Blockchain.XRP.id -> {
val tag = memo.toLongOrNull()
tag != null && tag <= XRP_TAG_MAX_NUMBER
}
Blockchain.Stellar.id -> {
isAssignableXlmValue(memo)
}
else -> true
}
}
private fun Blockchain.isNear(): Boolean {
return this == Blockchain.Near || this == Blockchain.NearTestnet
}
private fun isAssignableXlmValue(value: String): Boolean {
return when {
value.isNotEmpty() && value.isDigitsOnly() -> {
try {
// from com.tangem.blockchain.blockchains.stellar.StellarMemo.toStellarSdkMemo
value.toBigInteger() in BigInteger.ZERO..Long.MAX_VALUE.toBigInteger() * 2.toBigInteger()
} catch (ex: NumberFormatException) {
false
}
}
else -> {
// from org.stellar.sdk.MemoText
value.toByteArray().size <= XLM_MEMO_MAX_LENGTH
}
}
}
companion object {
private const val XLM_MEMO_MAX_LENGTH = 28
private const val XRP_TAG_MAX_NUMBER = 4294967295
}
}