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authorFabio Berger <me@fabioberger.com>2017-05-30 18:32:13 +0800
committerGitHub <noreply@github.com>2017-05-30 18:32:13 +0800
commit73ae3df172b1fdb7e6a3f5cbb866b09fb5f9d032 (patch)
tree5e09a057da737463c833232727335de37757bc77 /src
parentc536114b1638e30e5053dfc33d8e16465c0d373c (diff)
parent220f92541545851abda885df196be790e08fe040 (diff)
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Merge pull request #22 from 0xProject/regex-fix
Fix the empty code regex
Diffstat (limited to 'src')
-rw-r--r--src/web3_wrapper.ts7
1 files changed, 3 insertions, 4 deletions
diff --git a/src/web3_wrapper.ts b/src/web3_wrapper.ts
index 97d04db8c..a915a89e8 100644
--- a/src/web3_wrapper.ts
+++ b/src/web3_wrapper.ts
@@ -49,10 +49,9 @@ export class Web3Wrapper {
}
public async doesContractExistAtAddressAsync(address: string): Promise<boolean> {
const code = await promisify(this.web3.eth.getCode)(address);
- // Regex matches 0x0, 0x00, 0x in order to accomodate poorly implemented clients
- const zeroHexAddressRegex = /^0x0*$/i;
- const didFindCode = _.isNull(code.match(zeroHexAddressRegex));
- return didFindCode;
+ // Regex matches 0x0, 0x00, 0x in order to accommodate poorly implemented clients
+ const codeIsEmpty = /^0x0{0,40}$/i.test(code);
+ return !codeIsEmpty;
}
public async signTransactionAsync(address: string, message: string): Promise<string> {
const signData = await promisify(this.web3.eth.sign)(address, message);