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authorLeonid Logvinov <logvinov.leon@gmail.com>2017-05-30 16:21:48 +0800
committerLeonid Logvinov <logvinov.leon@gmail.com>2017-05-30 16:21:48 +0800
commit220f92541545851abda885df196be790e08fe040 (patch)
tree7ebd013fc85c0a0a89394034b2b2c50d1463570b
parent1f6ed77f4700229fe5d667cd352e74a0c4e4c3c4 (diff)
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Fix the empty code regex
-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);