diff options
Diffstat (limited to 'packages/utils/src/address_utils.ts')
-rw-r--r-- | packages/utils/src/address_utils.ts | 46 |
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')); - }, -}; |