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#19 fix integration test - add example app improvements
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,17 @@ | ||
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| import Foundation | ||
| import Web3 | ||
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|
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| extension EthereumTransaction { | ||
| var description: String { | ||
| return """ | ||
| from: \(String(describing: from!.hex(eip55: true))) | ||
| to: \(String(describing: to!.hex(eip55: true))), | ||
| value: \(String(describing: value!.hex())), | ||
| gasPrice: \(String(describing: gasPrice?.hex())), | ||
| gas: \(String(describing: gas?.hex())), | ||
| data: \(data.hex()), | ||
| nonce: \(String(describing: nonce?.hex())) | ||
| """ | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,48 @@ | ||
| import Web3 | ||
| import Foundation | ||
| import WalletConnectUtils | ||
| import WalletConnect | ||
| import CryptoSwift | ||
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| class Signer { | ||
| static let privateKey: EthereumPrivateKey = try! EthereumPrivateKey(hexPrivateKey: "0xe56da0e170b5e09a8bb8f1b693392c7d56c3739a9c75740fbc558a2877868540") | ||
| private init(){} | ||
| static func signEth(request: Request) -> AnyCodable { | ||
| let method = request.method | ||
| if method == "personal_sign" { | ||
| let params = try! request.params.get([String].self) | ||
| let messageToSign = params[0] | ||
| let signHash = signHash(messageToSign) | ||
| let (v, r, s) = try! self.privateKey.sign(hash: signHash) | ||
| let result = "0x" + r.toHexString() + s.toHexString() + String(v + 27, radix: 16) | ||
| return AnyCodable(result) | ||
| } else if method == "eth_signTypedData" { | ||
| let params = try! request.params.get([String].self) | ||
| print(params) | ||
| let messageToSign = params[1] | ||
| let signHash = signHash(messageToSign) | ||
| let (v, r, s) = try! self.privateKey.sign(hash: signHash) | ||
| let result = "0x" + r.toHexString() + s.toHexString() + String(v + 27, radix: 16) | ||
| return AnyCodable(result) | ||
| } else if method == "eth_sendTransaction" { | ||
| let params = try! request.params.get([EthereumTransaction].self) | ||
| var transaction = params[0] | ||
| transaction.gas = EthereumQuantity(quantity: BigUInt("1234")) | ||
| print(transaction.description) | ||
| let signedTx = try! transaction.sign(with: self.privateKey, chainId: 4) | ||
| let (r, s, v) = (signedTx.r, signedTx.s, signedTx.v) | ||
| let result = r.hex() + s.hex().dropFirst(2) + String(v.quantity, radix: 16) | ||
| return AnyCodable(result) | ||
| } | ||
| fatalError("not implemented") | ||
| } | ||
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| private static func signHash(_ message: String) -> Bytes { | ||
| let prefix = "\u{19}Ethereum Signed Message:\n" | ||
| let messageData = Data(hex: message) | ||
| let prefixData = (prefix + String(messageData.count)).data(using: .utf8)! | ||
| let prefixedMessageData = prefixData + messageData | ||
| let dataToHash: Bytes = .init(hex: prefixedMessageData.toHexString()) | ||
| return SHA3(variant: .keccak256).calculate(for: dataToHash) | ||
| } | ||
| } |
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