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[WIP] Web3Core Signing #6

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[WIP] Web3Core Signing #6

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2 changes: 1 addition & 1 deletion app/build.gradle.kts
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Original file line number Diff line number Diff line change
Expand Up @@ -71,7 +71,7 @@ dependencies {
implementation("io.ktor:ktor-client-android:2.3.4")

implementation("io.github.funkatronics:multimult:0.2.0")
implementation("com.solanamobile:web3-solana:0.2.2")
implementation("com.solanamobile:web3-solana:0.3.0-beta2")
implementation("com.solanamobile:rpc-core:0.2.3")
implementation("com.solanamobile:mobile-wallet-adapter-clientlib-ktx:2.0.0")

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52 changes: 45 additions & 7 deletions app/src/main/java/com/example/solanakotlincomposescaffold/viewmodel/MainViewModel.kt
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Expand Up @@ -13,9 +13,14 @@ import com.example.solanakotlincomposescaffold.usecase.RequestAirdropUseCase
import com.funkatronics.encoders.Base58
import com.solana.publickey.SolanaPublicKey
import com.solana.mobilewalletadapter.clientlib.ActivityResultSender
import com.solana.mobilewalletadapter.clientlib.AdapterOperations
import com.solana.mobilewalletadapter.clientlib.MobileWalletAdapter
import com.solana.mobilewalletadapter.clientlib.TransactionResult
import com.solana.mobilewalletadapter.clientlib.protocol.MobileWalletAdapterClient
import com.solana.mobilewalletadapter.clientlib.successPayload
import com.solana.publickey.PublicKey
import com.solana.signer.Signer
import com.solana.transaction.Transaction
import dagger.hilt.android.lifecycle.HiltViewModel
import kotlinx.coroutines.Dispatchers
import kotlinx.coroutines.flow.MutableStateFlow
Expand Down Expand Up @@ -152,19 +157,52 @@ class MainViewModel @Inject constructor(
}
}

// temporary stuff
val AdapterOperations.signer: Signer
get() = object : Signer {
override val ownerLength = 32
override val signatureLength = 64
override val publicKey: PublicKey
get() = TODO("Not yet implemented")

override suspend fun signPayload(payload: ByteArray): ByteArray {
return runCatching { Transaction.from(payload) }.getOrNull()?.let {
val result = [email protected](arrayOf(payload))
result.signedPayloads.first()
} ?: [email protected](arrayOf(payload), arrayOf(publicKey.bytes)).messages.first().signatures.first()
}
}

suspend fun AdapterOperations.signTransactions(vararg transactions: Transaction): List<Transaction> {
val serializedTxns = runCatching {
transactions.map { it.serialize() }.toTypedArray()
}.getOrElse {
throw IllegalArgumentException("Transactions could not be serialized", it)
}
return signTransactions(serializedTxns).signedPayloads.map {
Transaction.from(it)
}
}
suspend fun AdapterOperations.signAndSendTransactions(vararg transactions: Transaction): MobileWalletAdapterClient.SignAndSendTransactionsResult =
signAndSendTransactions(
runCatching {
transactions.map { it.serialize() }.toTypedArray()
}.getOrElse {
throw IllegalArgumentException("Transactions could not be serialized", it)
}
)

fun signTransaction(sender: ActivityResultSender ) {
viewModelScope.launch {
val result = walletAdapter.transact(sender) { authResult ->
val account = SolanaPublicKey(authResult.accounts.first().publicKey)
val memoTx = MemoTransactionUseCase(rpcUri, account, "Hello Solana!");
signTransactions(arrayOf(
memoTx.serialize(),
));
val memoTx = MemoTransactionUseCase(rpcUri, account, "Hello Solana!")
signTransactions(memoTx)
}

_state.value = when (result) {
is TransactionResult.Success -> {
val signedTxBytes = result.successPayload?.signedPayloads?.first()
val signedTxBytes = result.successPayload?.first()?.serialize()
signedTxBytes?.let {
println("Memo publish signature: " + Base58.encodeToString(signedTxBytes))
}
Expand All @@ -188,8 +226,8 @@ class MainViewModel @Inject constructor(
viewModelScope.launch {
val result = walletAdapter.transact(sender) { authResult ->
val account = SolanaPublicKey(authResult.accounts.first().publicKey)
val memoTx = MemoTransactionUseCase(rpcUri, account, memoText);
signAndSendTransactions(arrayOf(memoTx.serialize()));
val memoTx = MemoTransactionUseCase(rpcUri, account, memoText)
signAndSendTransactions(memoTx)
}

_state.value = when (result) {
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