diff options
Diffstat (limited to 'packages/subproviders/src')
| -rw-r--r-- | packages/subproviders/src/globals.d.ts | 5 | ||||
| -rw-r--r-- | packages/subproviders/src/index.ts | 3 | ||||
| -rw-r--r-- | packages/subproviders/src/subproviders/eth_lightwallet_subprovider.ts | 68 | ||||
| -rw-r--r-- | packages/subproviders/src/subproviders/signer.ts (renamed from packages/subproviders/src/subproviders/injected_web3.ts) | 45 |
4 files changed, 101 insertions, 20 deletions
diff --git a/packages/subproviders/src/globals.d.ts b/packages/subproviders/src/globals.d.ts index c00dc4099..94e63a32d 100644 --- a/packages/subproviders/src/globals.d.ts +++ b/packages/subproviders/src/globals.d.ts @@ -1,8 +1,3 @@ -// tslint:disable:max-classes-per-file -// tslint:disable:class-name -// tslint:disable:async-suffix -// tslint:disable:completed-docs - declare module '*.json' { const json: any; /* tslint:disable */ diff --git a/packages/subproviders/src/index.ts b/packages/subproviders/src/index.ts index 9194c1341..71d643f14 100644 --- a/packages/subproviders/src/index.ts +++ b/packages/subproviders/src/index.ts @@ -7,7 +7,7 @@ import { LedgerEthereumClient } from './types'; export { prependSubprovider } from './utils/subprovider_utils'; export { EmptyWalletSubprovider } from './subproviders/empty_wallet_subprovider'; export { FakeGasEstimateSubprovider } from './subproviders/fake_gas_estimate_subprovider'; -export { InjectedWeb3Subprovider } from './subproviders/injected_web3'; +export { SignerSubprovider } from './subproviders/signer'; export { RedundantSubprovider } from './subproviders/redundant_subprovider'; export { LedgerSubprovider } from './subproviders/ledger'; export { GanacheSubprovider } from './subproviders/ganache'; @@ -15,6 +15,7 @@ export { Subprovider } from './subproviders/subprovider'; export { NonceTrackerSubprovider } from './subproviders/nonce_tracker'; export { PrivateKeyWalletSubprovider } from './subproviders/private_key_wallet'; export { MnemonicWalletSubprovider } from './subproviders/mnemonic_wallet'; +export { EthLightwalletSubprovider } from './subproviders/eth_lightwallet_subprovider'; export { Callback, ErrorCallback, diff --git a/packages/subproviders/src/subproviders/eth_lightwallet_subprovider.ts b/packages/subproviders/src/subproviders/eth_lightwallet_subprovider.ts new file mode 100644 index 000000000..a9ebbb790 --- /dev/null +++ b/packages/subproviders/src/subproviders/eth_lightwallet_subprovider.ts @@ -0,0 +1,68 @@ +import * as lightwallet from 'eth-lightwallet'; + +import { PartialTxParams } from '../types'; + +import { BaseWalletSubprovider } from './base_wallet_subprovider'; +import { PrivateKeyWalletSubprovider } from './private_key_wallet'; + +/* + * This class implements the web3-provider-engine subprovider interface and forwards + * requests involving user accounts and signing operations to eth-lightwallet + * + * Source: https://github.com/MetaMask/provider-engine/blob/master/subproviders/subprovider.js + */ +export class EthLightwalletSubprovider extends BaseWalletSubprovider { + private _keystore: lightwallet.keystore; + private _pwDerivedKey: Uint8Array; + constructor(keystore: lightwallet.keystore, pwDerivedKey: Uint8Array) { + super(); + this._keystore = keystore; + this._pwDerivedKey = pwDerivedKey; + } + /** + * Retrieve the accounts associated with the eth-lightwallet instance. + * This method is implicitly called when issuing a `eth_accounts` JSON RPC request + * via your providerEngine instance. + * + * @return An array of accounts + */ + public async getAccountsAsync(): Promise<string[]> { + const accounts = this._keystore.getAddresses(); + return accounts; + } + /** + * Signs a transaction with the account specificed by the `from` field in txParams. + * If you've added this Subprovider to your app's provider, you can simply send + * an `eth_sendTransaction` JSON RPC request, and this method will be called auto-magically. + * If you are not using this via a ProviderEngine instance, you can call it directly. + * @param txParams Parameters of the transaction to sign + * @return Signed transaction hex string + */ + public async signTransactionAsync(txParams: PartialTxParams): Promise<string> { + // Lightwallet loses the chain id information when hex encoding the transaction + // this results in a different signature on certain networks. PrivateKeyWallet + // respects this as it uses the parameters passed in + let privKey = this._keystore.exportPrivateKey(txParams.from, this._pwDerivedKey); + const privKeyWallet = new PrivateKeyWalletSubprovider(privKey); + privKey = ''; + const privKeySignature = await privKeyWallet.signTransactionAsync(txParams); + return privKeySignature; + } + /** + * Sign a personal Ethereum signed message. The signing account will be the account + * associated with the provided address. + * If you've added the MnemonicWalletSubprovider to your app's provider, you can simply send an `eth_sign` + * or `personal_sign` JSON RPC request, and this method will be called auto-magically. + * If you are not using this via a ProviderEngine instance, you can call it directly. + * @param data Hex string message to sign + * @param address Address of the account to sign with + * @return Signature hex string (order: rsv) + */ + public async signPersonalMessageAsync(data: string, address: string): Promise<string> { + let privKey = this._keystore.exportPrivateKey(address, this._pwDerivedKey); + const privKeyWallet = new PrivateKeyWalletSubprovider(privKey); + privKey = ''; + const result = privKeyWallet.signPersonalMessageAsync(data, address); + return result; + } +} diff --git a/packages/subproviders/src/subproviders/injected_web3.ts b/packages/subproviders/src/subproviders/signer.ts index 2691dec53..08a9daceb 100644 --- a/packages/subproviders/src/subproviders/injected_web3.ts +++ b/packages/subproviders/src/subproviders/signer.ts @@ -1,5 +1,5 @@ +import { Web3Wrapper } from '@0xproject/web3-wrapper'; import { JSONRPCRequestPayload, Provider } from 'ethereum-types'; -import * as Web3 from 'web3'; import { Callback, ErrorCallback } from '../types'; @@ -7,19 +7,19 @@ import { Subprovider } from './subprovider'; /** * This class implements the [web3-provider-engine](https://github.com/MetaMask/provider-engine) - * subprovider interface. It forwards JSON RPC requests involving user accounts (getAccounts, - * sendTransaction, etc...) to the provider instance supplied at instantiation. All other requests + * subprovider interface. It forwards JSON RPC requests involving the domain of a signer (getAccounts, + * sendTransaction, signMessage etc...) to the provider instance supplied at instantiation. All other requests * are passed onwards for subsequent subproviders to handle. */ -export class InjectedWeb3Subprovider extends Subprovider { - private _injectedWeb3: Web3; +export class SignerSubprovider extends Subprovider { + private _web3Wrapper: Web3Wrapper; /** - * Instantiates a new InjectedWeb3Subprovider + * Instantiates a new SignerSubprovider * @param provider Web3 provider that should handle all user account related requests */ constructor(provider: Provider) { super(); - this._injectedWeb3 = new Web3(provider); + this._web3Wrapper = new Web3Wrapper(provider); } /** * This method conforms to the web3-provider-engine interface. @@ -33,22 +33,39 @@ export class InjectedWeb3Subprovider extends Subprovider { public async handleRequest(payload: JSONRPCRequestPayload, next: Callback, end: ErrorCallback): Promise<void> { switch (payload.method) { case 'web3_clientVersion': - this._injectedWeb3.version.getNode(end); + try { + const nodeVersion = await this._web3Wrapper.getNodeVersionAsync(); + end(null, nodeVersion); + } catch (err) { + end(err); + } return; case 'eth_accounts': - this._injectedWeb3.eth.getAccounts(end); + try { + const accounts = await this._web3Wrapper.getAvailableAddressesAsync(); + end(null, accounts); + } catch (err) { + end(err); + } return; - case 'eth_sendTransaction': const [txParams] = payload.params; - this._injectedWeb3.eth.sendTransaction(txParams, end); + try { + const txHash = await this._web3Wrapper.sendTransactionAsync(txParams); + end(null, txHash); + } catch (err) { + end(err); + } return; - case 'eth_sign': const [address, message] = payload.params; - this._injectedWeb3.eth.sign(address, message, end); + try { + const signature = await this._web3Wrapper.signMessageAsync(address, message); + end(null, signature); + } catch (err) { + end(err); + } return; - default: next(); return; |