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-rw-r--r--packages/order-utils/src/asset_proxy_utils.ts12
1 files changed, 7 insertions, 5 deletions
diff --git a/packages/order-utils/src/asset_proxy_utils.ts b/packages/order-utils/src/asset_proxy_utils.ts
index 5a084deba..55f2d56df 100644
--- a/packages/order-utils/src/asset_proxy_utils.ts
+++ b/packages/order-utils/src/asset_proxy_utils.ts
@@ -3,8 +3,8 @@ import { BigNumber } from '@0xproject/utils';
import BN = require('bn.js');
import ethUtil = require('ethereumjs-util');
-const ERC20_PROXY_METADATA_BYTE_LENGTH = 20;
-const ERC721_PROXY_METADATA_BYTE_LENGTH = 52;
+const ERC20_PROXY_METADATA_BYTE_LENGTH = 21;
+const ERC721_PROXY_METADATA_BYTE_LENGTH = 53;
export const assetProxyUtils = {
encodeAssetProxyId(assetProxyId: AssetProxyId): Buffer {
@@ -65,7 +65,8 @@ export const assetProxyUtils = {
}), but got ${assetProxyId}`,
);
}
- const encodedTokenAddress = encodedProxyMetadata.slice(0, ERC20_PROXY_METADATA_BYTE_LENGTH);
+ const addressOffset = ERC20_PROXY_METADATA_BYTE_LENGTH - 1;
+ const encodedTokenAddress = encodedProxyMetadata.slice(0, addressOffset);
const tokenAddress = assetProxyUtils.decodeAddress(encodedTokenAddress);
const erc20ProxyData = {
assetProxyId,
@@ -99,10 +100,11 @@ export const assetProxyUtils = {
}), but got ${assetProxyId}`,
);
}
- const addressOffset = 20;
+ const addressOffset = ERC20_PROXY_METADATA_BYTE_LENGTH - 1;
const encodedTokenAddress = encodedProxyMetadata.slice(0, addressOffset);
const tokenAddress = assetProxyUtils.decodeAddress(encodedTokenAddress);
- const encodedTokenId = encodedProxyMetadata.slice(addressOffset, ERC721_PROXY_METADATA_BYTE_LENGTH);
+ const tokenIdOffset = ERC721_PROXY_METADATA_BYTE_LENGTH - 1;
+ const encodedTokenId = encodedProxyMetadata.slice(addressOffset, tokenIdOffset);
const tokenId = assetProxyUtils.decodeUint256(encodedTokenId);
const erc721ProxyData = {
assetProxyId,