92 lines
2.8 KiB
Nim
92 lines
2.8 KiB
Nim
import eth/keys
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import ../basics
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import ../provider
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import ../transaction
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import ../signer
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import ./wallet/error
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import ./wallet/signing
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export keys
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export WalletError
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export signing
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{.push raises: [].}
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var rng {.threadvar.}: ref HmacDrbgContext
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proc getRng: ref HmacDrbgContext =
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if rng.isNil:
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rng = newRng()
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rng
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type Wallet* = ref object of Signer
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privateKey*: PrivateKey
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publicKey*: PublicKey
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address*: Address
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provider*: ?Provider
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proc new*(_: type Wallet, privateKey: PrivateKey): Wallet =
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let publicKey = privateKey.toPublicKey()
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let address = Address.init(publicKey.toCanonicalAddress())
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Wallet(privateKey: privateKey, publicKey: publicKey, address: address)
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proc new*(_: type Wallet, privateKey: PrivateKey, provider: Provider): Wallet =
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let wallet = Wallet.new(privateKey)
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wallet.provider = some provider
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wallet
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proc new*(_: type Wallet, privateKey: string): ?!Wallet =
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let keyResult = PrivateKey.fromHex(privateKey)
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if keyResult.isErr:
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return failure newException(WalletError, "invalid key: " & $keyResult.error)
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success Wallet.new(keyResult.get())
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proc new*(_: type Wallet, privateKey: string, provider: Provider): ?!Wallet =
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let wallet = ? Wallet.new(privateKey)
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wallet.provider = some provider
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success wallet
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proc connect*(wallet: Wallet, provider: Provider) =
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wallet.provider = some provider
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proc createRandom*(_: type Wallet): Wallet =
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result = Wallet()
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result.privateKey = PrivateKey.random(getRng()[])
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result.publicKey = result.privateKey.toPublicKey()
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result.address = Address.init(result.publicKey.toCanonicalAddress())
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proc createRandom*(_: type Wallet, provider: Provider): Wallet =
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result = Wallet()
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result.privateKey = PrivateKey.random(getRng()[])
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result.publicKey = result.privateKey.toPublicKey()
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result.address = Address.init(result.publicKey.toCanonicalAddress())
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result.provider = some provider
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method provider*(wallet: Wallet): Provider {.gcsafe, raises: [SignerError].} =
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without provider =? wallet.provider:
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raiseWalletError "Wallet has no provider"
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provider
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method getAddress*(
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wallet: Wallet): Future[Address]
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{.async: (raises:[ProviderError, SignerError]).} =
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return wallet.address
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proc signTransaction*(wallet: Wallet,
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transaction: Transaction): Future[seq[byte]] {.async: (raises:[WalletError]).} =
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if sender =? transaction.sender and sender != wallet.address:
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raiseWalletError "from address mismatch"
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return wallet.privateKey.sign(transaction)
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method sendTransaction*(
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wallet: Wallet,
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transaction: Transaction): Future[TransactionResponse]
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{.async: (raises:[SignerError, ProviderError]).} =
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let signed = await signTransaction(wallet, transaction)
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if nonce =? transaction.nonce:
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wallet.updateNonce(nonce)
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return await provider(wallet).sendTransaction(signed)
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