116 lines
2.6 KiB
TypeScript
116 lines
2.6 KiB
TypeScript
'use strict';
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import * as errors from '../utils/errors';
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export type Network = {
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name: string,
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chainId: number,
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ensAddress?: string,
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}
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export type Networkish = Network | string | number;
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const homestead: Network = {
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chainId: 1,
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ensAddress: "0x314159265dd8dbb310642f98f50c066173c1259b",
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name: "homestead"
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};
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const ropsten: Network = {
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chainId: 3,
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ensAddress: "0x112234455c3a32fd11230c42e7bccd4a84e02010",
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name: "ropsten"
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};
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const networks: { [name: string]: { chainId: number, ensAddress?: string } } = {
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unspecified: {
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chainId: 0
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},
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homestead: homestead,
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mainnet: homestead,
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morden: {
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chainId: 2
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},
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ropsten: ropsten,
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testnet: ropsten,
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rinkeby: {
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chainId: 4,
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ensAddress: "0xe7410170f87102DF0055eB195163A03B7F2Bff4A"
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},
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kovan: {
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chainId: 42
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},
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classic: {
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chainId: 61
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}
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}
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/**
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* getNetwork
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*
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* Converts a named common networks or chain ID (network ID) to a Network
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* and verifies a network is a valid Network..
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*/
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export function getNetwork(network: Networkish): Network {
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// No network (null) or unspecified (chainId = 0)
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if (!network) { return null; }
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if (typeof(network) === 'number') {
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for (var name in networks) {
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let n = networks[name];
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if (n.chainId === network) {
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return {
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name: name,
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chainId: n.chainId,
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ensAddress: n.ensAddress
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};
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}
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}
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return {
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chainId: network,
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name: 'unknown'
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};
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}
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if (typeof(network) === 'string') {
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let n = networks[network];
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if (n == null) { return null; }
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return {
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name: network,
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chainId: n.chainId,
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ensAddress: n.ensAddress
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};
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}
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let n = networks[network.name];
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// Not a standard network; check that it is a valid network in general
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if (!n) {
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if (typeof(network.chainId) !== 'number') {
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errors.throwError('invalid network chainId', errors.INVALID_ARGUMENT, { arg: 'network', value: network });
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}
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return network;
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}
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// Make sure the chainId matches the expected network chainId (or is 0; disable EIP-155)
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if (network.chainId !== 0 && network.chainId !== n.chainId) {
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errors.throwError('network chainId mismatch', errors.INVALID_ARGUMENT, { arg: 'network', value: network });
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}
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// Standard Network
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return {
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name: network.name,
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chainId: n.chainId,
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ensAddress: n.ensAddress
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};
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}
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