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-rw-r--r--packages/utils/src/address_utils.ts46
1 files changed, 0 insertions, 46 deletions
diff --git a/packages/utils/src/address_utils.ts b/packages/utils/src/address_utils.ts
deleted file mode 100644
index 1fc960408..000000000
--- a/packages/utils/src/address_utils.ts
+++ /dev/null
@@ -1,46 +0,0 @@
-import { addHexPrefix, stripHexPrefix } from 'ethereumjs-util';
-import * as jsSHA3 from 'js-sha3';
-import * as _ from 'lodash';
-
-const BASIC_ADDRESS_REGEX = /^(0x)?[0-9a-f]{40}$/i;
-const SAME_CASE_ADDRESS_REGEX = /^(0x)?([0-9a-f]{40}|[0-9A-F]{40})$/;
-const ADDRESS_LENGTH = 40;
-
-export const addressUtils = {
- isChecksumAddress(address: string): boolean {
- // Check each case
- const unprefixedAddress = address.replace('0x', '');
- const addressHash = jsSHA3.keccak256(unprefixedAddress.toLowerCase());
-
- for (let i = 0; i < ADDRESS_LENGTH; i++) {
- // The nth letter should be uppercase if the nth digit of casemap is 1
- const hexBase = 16;
- const lowercaseRange = 7;
- if (
- (parseInt(addressHash[i], hexBase) > lowercaseRange &&
- unprefixedAddress[i].toUpperCase() !== unprefixedAddress[i]) ||
- (parseInt(addressHash[i], hexBase) <= lowercaseRange &&
- unprefixedAddress[i].toLowerCase() !== unprefixedAddress[i])
- ) {
- return false;
- }
- }
- return true;
- },
- isAddress(address: string): boolean {
- if (!BASIC_ADDRESS_REGEX.test(address)) {
- // Check if it has the basic requirements of an address
- return false;
- } else if (SAME_CASE_ADDRESS_REGEX.test(address)) {
- // If it's all small caps or all all caps, return true
- return true;
- } else {
- // Otherwise check each case
- const isValidChecksummedAddress = addressUtils.isChecksumAddress(address);
- return isValidChecksummedAddress;
- }
- },
- padZeros(address: string): string {
- return addHexPrefix(_.padStart(stripHexPrefix(address), ADDRESS_LENGTH, '0'));
- },
-};