diff options
Diffstat (limited to 'packages/subproviders')
-rw-r--r-- | packages/subproviders/src/subproviders/eth_lightwallet.ts | 100 |
1 files changed, 0 insertions, 100 deletions
diff --git a/packages/subproviders/src/subproviders/eth_lightwallet.ts b/packages/subproviders/src/subproviders/eth_lightwallet.ts deleted file mode 100644 index 970c5d981..000000000 --- a/packages/subproviders/src/subproviders/eth_lightwallet.ts +++ /dev/null @@ -1,100 +0,0 @@ -import { assert } from '@0xproject/assert'; -import { ECSignatureBuffer } from '@0xproject/types'; -import { addressUtils } from '@0xproject/utils'; -import * as lightwallet from 'eth-lightwallet'; -import EthereumTx = require('ethereumjs-tx'); -import * as _ from 'lodash'; - -import { PartialTxParams, WalletSubproviderErrors } from '../types'; - -import { BaseWalletSubprovider } from './base_wallet_subprovider'; - -/* - * This class implements the [web3-provider-engine](https://github.com/MetaMask/provider-engine) subprovider interface. - * This subprovider intercepts all account related RPC requests (e.g message/transaction signing, etc...) and - * re-routes them to [eth-lightwallet](https://github.com/ConsenSys/eth-lightwallet). - */ -export class EthLightwalletSubprovider extends BaseWalletSubprovider { - private _signing: lightwallet.signing; - private _keystore: lightwallet.keystore; - private _pwDerivedKey: Uint8Array; - /** - * Instantiates a EthLightwalletSubprovider - * @param signing The lightwallet module containing signing functions - * @param keystore An instance of the lightwallet keystore - * @param pwDerivedKey The users password derived key - */ - constructor(signing: lightwallet.signing, keystore: lightwallet.keystore, pwDerivedKey: Uint8Array) { - super(); - - this._signing = signing; - 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> { - if (_.isUndefined(txParams.from) || !addressUtils.isAddress(txParams.from)) { - throw new Error(WalletSubproviderErrors.FromAddressMissingOrInvalid); - } - - const tx = new EthereumTx(txParams); - const txHex = tx.serialize().toString('hex'); - let signedTxHex: string = this._signing.signTx( - this._keystore, - this._pwDerivedKey, - txHex, - txParams.from, - this._keystore.hdPathString, - ); - - signedTxHex = `0x${signedTxHex}`; - - return signedTxHex; - } - /** - * Sign a personal Ethereum signed message. The signing account will be the account - * associated with the provided address. - * If you've added the EthLightwalletSubprovider 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> { - if (_.isUndefined(data)) { - throw new Error(WalletSubproviderErrors.DataMissingForSignPersonalMessage); - } - assert.isHexString('data', data); - assert.isETHAddressHex('address', address); - const result: ECSignatureBuffer = await this._signing.signMsgHash( - this._keystore, - this._pwDerivedKey, - data, - address, - this._keystore.hdPathString, - ); - - const signature = this._signing.concatSig(result); - - return signature; - } -} |