aboutsummaryrefslogblamecommitdiffstats
path: root/packages/0x.js/src/utils/assert.ts
blob: 86a6a7c01026404e21daf8e15a95e6f8722c9e36 (plain) (tree)
1
2
3
4
5
6
7
8
9
                                                         


                                                                                                          
                                                    

                                              
                            
 
                                     
                                                        
 

                       



                                                                                                           

                                                                              
                                                                     
                                                                                                           
                                                     
                                                                                                               
          
      
                                                                                
                                                                                  
                                                                                                                 
      
  
import {assert as sharedAssert} from '@0xproject/assert';
// We need those two unused imports because they're actually used by sharedAssert which gets injected here
// tslint:disable-next-line:no-unused-variable
import {Schema} from '@0xproject/json-schemas';
import {Web3Wrapper} from '@0xproject/web3-wrapper';
// tslint:disable-next-line:no-unused-variable
import * as BigNumber from 'bignumber.js';
import * as _ from 'lodash';

import {ECSignature} from '../types';
import {signatureUtils} from '../utils/signature_utils';

export const assert = {
    ...sharedAssert,
    isValidSignature(orderHash: string, ecSignature: ECSignature, signerAddress: string) {
        const isValidSignature = signatureUtils.isValidSignature(orderHash, ecSignature, signerAddress);
        this.assert(isValidSignature, `Expected order with hash '${orderHash}' to have a valid signature`);
    },
    async isSenderAddressAsync(variableName: string, senderAddressHex: string,
                               web3Wrapper: Web3Wrapper): Promise<void> {
        sharedAssert.isETHAddressHex(variableName, senderAddressHex);
        const isSenderAddressAvailable = await web3Wrapper.isSenderAddressAvailableAsync(senderAddressHex);
        sharedAssert.assert(isSenderAddressAvailable,
            `Specified ${variableName} ${senderAddressHex} isn't available through the supplied web3 provider`,
        );
    },
    async isUserAddressAvailableAsync(web3Wrapper: Web3Wrapper): Promise<void> {
        const availableAddresses = await web3Wrapper.getAvailableAddressesAsync();
        this.assert(!_.isEmpty(availableAddresses), 'No addresses were available on the provided web3 provider');
    },
};