aboutsummaryrefslogblamecommitdiffstats
path: root/src/contract_wrappers/proxy_wrapper.ts
blob: 05d4e142c4ab8b89b8d7980da0e087c4ecc159bb (plain) (tree)
1
2
3
4
5
6
7
8






                                                          
                                                                                        


                                                   
       
                                                                                  
                                                                                                     
                                                                  

                                                                                       
                                                                          
                                                                                                  

                            
       
                                                                                        
                                                                                                     






                                                                                                  


                                                 
                                                                    







                                                                                                       
import * as _ from 'lodash';
import {Web3Wrapper} from '../web3_wrapper';
import {ContractWrapper} from './contract_wrapper';
import * as ProxyArtifacts from '../artifacts/Proxy.json';
import {ProxyContract} from '../types';

/**
 * This class includes the functionality related to interacting with the Proxy contract.
 */
export class ProxyWrapper extends ContractWrapper {
    private _proxyContractIfExists?: ProxyContract;
    /**
     * Check if the Exchange contract address is authorized by the Proxy 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> {
        const proxyContractInstance = await this._getProxyContractAsync();
        const isAuthorized = await proxyContractInstance.authorized.call(exchangeContractAddress);
        return isAuthorized;
    }
    /**
     * Get the list of all Exchange contract addresses authorized by the Proxy contract.
     * @param   exchangeContractAddress     The hex encoded address of the Exchange contract to call.
     * @return  The list of authorized addresses.
     */
    public async getAuthorizedAddressesAsync(exchangeContractAddress: string): Promise<string[]> {
        const proxyContractInstance = await this._getProxyContractAsync();
        const authorizedAddresses = await proxyContractInstance.getAuthorizedAddresses.call();
        return authorizedAddresses;
    }
    private _invalidateContractInstance(): void {
        delete this._proxyContractIfExists;
    }
    private async _getProxyContractAsync(): Promise<ProxyContract> {
        if (!_.isUndefined(this._proxyContractIfExists)) {
            return this._proxyContractIfExists;
        }
        const contractInstance = await this._instantiateContractIfExistsAsync((ProxyArtifacts as any));
        this._proxyContractIfExists = contractInstance as ProxyContract;
        return this._proxyContractIfExists;
    }
}