86 lines
4.0 KiB
TypeScript
86 lines
4.0 KiB
TypeScript
import { AssetProxyId } from '@0xproject/types';
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import { Web3Wrapper } from '@0xproject/web3-wrapper';
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import { ContractAbi } from 'ethereum-types';
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import * as _ from 'lodash';
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import { artifacts } from '../artifacts';
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import { assert } from '../utils/assert';
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import { ContractWrapper } from './contract_wrapper';
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import { ERC721ProxyContract } from './generated/erc721_proxy';
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/**
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* This class includes the functionality related to interacting with the ERC721Proxy contract.
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*/
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export class ERC721ProxyWrapper extends ContractWrapper {
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public abi: ContractAbi = artifacts.ERC20Proxy.compilerOutput.abi;
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private _erc721ProxyContractIfExists?: ERC721ProxyContract;
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private _contractAddressIfExists?: string;
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constructor(web3Wrapper: Web3Wrapper, networkId: number, contractAddressIfExists?: string) {
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super(web3Wrapper, networkId);
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this._contractAddressIfExists = contractAddressIfExists;
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}
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/**
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* Get the 4 bytes ID of this asset proxy
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* @return Proxy id
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*/
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public async getProxyIdAsync(): Promise<AssetProxyId> {
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const ERC721ProxyContractInstance = await this._getERC721ProxyContractAsync();
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const proxyId = (await ERC721ProxyContractInstance.getProxyId.callAsync()) as AssetProxyId;
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return proxyId;
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}
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/**
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* Check if the Exchange contract address is authorized by the ERC721Proxy contract.
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* @param exchangeContractAddress The hex encoded address of the Exchange contract to call.
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* @return Whether the exchangeContractAddress is authorized.
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*/
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public async isAuthorizedAsync(exchangeContractAddress: string): Promise<boolean> {
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assert.isETHAddressHex('exchangeContractAddress', exchangeContractAddress);
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const normalizedExchangeContractAddress = exchangeContractAddress.toLowerCase();
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const ERC721ProxyContractInstance = await this._getERC721ProxyContractAsync();
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const isAuthorized = await ERC721ProxyContractInstance.authorized.callAsync(normalizedExchangeContractAddress);
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return isAuthorized;
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}
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/**
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* Get the list of all Exchange contract addresses authorized by the ERC721Proxy contract.
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* @return The list of authorized addresses.
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*/
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public async getAuthorizedAddressesAsync(): Promise<string[]> {
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const ERC721ProxyContractInstance = await this._getERC721ProxyContractAsync();
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const authorizedAddresses = await ERC721ProxyContractInstance.getAuthorizedAddresses.callAsync();
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return authorizedAddresses;
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}
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/**
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* Retrieves the Ethereum address of the ERC721Proxy contract deployed on the network
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* that the user-passed web3 provider is connected to.
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* @returns The Ethereum address of the ERC721Proxy contract being used.
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*/
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public getContractAddress(): string {
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const contractAddress = this._getContractAddress(artifacts.ERC721Proxy, this._contractAddressIfExists);
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return contractAddress;
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}
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// HACK: We don't want this method to be visible to the other units within that package but not to the end user.
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// TS doesn't give that possibility and therefore we make it private and access it over an any cast. Because of that tslint sees it as unused.
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// tslint:disable-next-line:no-unused-variable
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private _invalidateContractInstance(): void {
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delete this._erc721ProxyContractIfExists;
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}
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private async _getERC721ProxyContractAsync(): Promise<ERC721ProxyContract> {
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if (!_.isUndefined(this._erc721ProxyContractIfExists)) {
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return this._erc721ProxyContractIfExists;
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}
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const [abi, address] = await this._getContractAbiAndAddressFromArtifactsAsync(
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artifacts.ERC721Proxy,
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this._contractAddressIfExists,
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);
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const contractInstance = new ERC721ProxyContract(
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abi,
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address,
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this._web3Wrapper.getProvider(),
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this._web3Wrapper.getContractDefaults(),
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);
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this._erc721ProxyContractIfExists = contractInstance;
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return this._erc721ProxyContractIfExists;
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}
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}
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