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Merge pull request #579 from 0xProject/breakUp0xjs
Split 0x.js into: contract-wrappers & order-watcher
Diffstat (limited to 'packages/contract-wrappers/src/contract_wrappers/token_transfer_proxy_wrapper.ts')
-rw-r--r-- | packages/contract-wrappers/src/contract_wrappers/token_transfer_proxy_wrapper.ts | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/packages/contract-wrappers/src/contract_wrappers/token_transfer_proxy_wrapper.ts b/packages/contract-wrappers/src/contract_wrappers/token_transfer_proxy_wrapper.ts new file mode 100644 index 000000000..02a2e19d0 --- /dev/null +++ b/packages/contract-wrappers/src/contract_wrappers/token_transfer_proxy_wrapper.ts @@ -0,0 +1,72 @@ +import { Web3Wrapper } from '@0xproject/web3-wrapper'; +import * as _ from 'lodash'; + +import { artifacts } from '../artifacts'; +import { assert } from '../utils/assert'; + +import { ContractWrapper } from './contract_wrapper'; +import { TokenTransferProxyContract } from './generated/token_transfer_proxy'; + +/** + * This class includes the functionality related to interacting with the TokenTransferProxy contract. + */ +export class TokenTransferProxyWrapper extends ContractWrapper { + private _tokenTransferProxyContractIfExists?: TokenTransferProxyContract; + private _contractAddressIfExists?: string; + constructor(web3Wrapper: Web3Wrapper, networkId: number, contractAddressIfExists?: string) { + super(web3Wrapper, networkId); + this._contractAddressIfExists = contractAddressIfExists; + } + /** + * Check if the Exchange contract address is authorized by the TokenTransferProxy contract. + * @param exchangeContractAddress The hex encoded address of the Exchange contract to call. + * @return Whether the exchangeContractAddress is authorized. + */ + public async isAuthorizedAsync(exchangeContractAddress: string): Promise<boolean> { + assert.isETHAddressHex('exchangeContractAddress', exchangeContractAddress); + const normalizedExchangeContractAddress = exchangeContractAddress.toLowerCase(); + const tokenTransferProxyContractInstance = await this._getTokenTransferProxyContractAsync(); + const isAuthorized = await tokenTransferProxyContractInstance.authorized.callAsync( + normalizedExchangeContractAddress, + ); + return isAuthorized; + } + /** + * Get the list of all Exchange contract addresses authorized by the TokenTransferProxy contract. + * @return The list of authorized addresses. + */ + public async getAuthorizedAddressesAsync(): Promise<string[]> { + const tokenTransferProxyContractInstance = await this._getTokenTransferProxyContractAsync(); + const authorizedAddresses = await tokenTransferProxyContractInstance.getAuthorizedAddresses.callAsync(); + return authorizedAddresses; + } + /** + * Retrieves the Ethereum address of the TokenTransferProxy contract deployed on the network + * that the user-passed web3 provider is connected to. + * @returns The Ethereum address of the TokenTransferProxy contract being used. + */ + public getContractAddress(): string { + const contractAddress = this._getContractAddress(artifacts.TokenTransferProxy, this._contractAddressIfExists); + return contractAddress; + } + private _invalidateContractInstance(): void { + delete this._tokenTransferProxyContractIfExists; + } + private async _getTokenTransferProxyContractAsync(): Promise<TokenTransferProxyContract> { + if (!_.isUndefined(this._tokenTransferProxyContractIfExists)) { + return this._tokenTransferProxyContractIfExists; + } + const [abi, address] = await this._getContractAbiAndAddressFromArtifactsAsync( + artifacts.TokenTransferProxy, + this._contractAddressIfExists, + ); + const contractInstance = new TokenTransferProxyContract( + abi, + address, + this._web3Wrapper.getProvider(), + this._web3Wrapper.getContractDefaults(), + ); + this._tokenTransferProxyContractIfExists = contractInstance; + return this._tokenTransferProxyContractIfExists; + } +} |