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[ripple-binary-codec] fix ISO when parsing currency code (#1921)

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This commit is contained in:
Omar Khan
2022-02-02 17:52:08 -05:00
committed by GitHub
parent 3ac29194ba
commit 8f79c51c7c
3 changed files with 25 additions and 7 deletions
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13
packages/ripple-binary-codec/src/types/currency.ts
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@@ -1,8 +1,11 @@
import { Hash160 } from './hash-160'
import { Buffer } from 'buffer/'
const XRP_HEX_REGEX = /^0{40}$/
const ISO_REGEX = /^[A-Z0-9]{3}$/
const HEX_REGEX = /^[A-F0-9]{40}$/
// eslint-disable-next-line no-control-regex
const STANDARD_FORMAT_HEX_REGEX = /^0{24}[\x00-\x7F]{6}0{10}$/
/**
* Convert an ISO code to a currency bytes representation
@@ -85,14 +88,14 @@ class Currency extends Hash160 {
constructor(byteBuf: Buffer) {
super(byteBuf ?? Currency.XRP.bytes)
const code = this.bytes.slice(12, 15)
const hex = this.bytes.toString('hex')
if (this.bytes[0] !== 0) {
this._iso = null
} else if (/^0*$/.test(this.bytes.toString('hex'))) {
if (XRP_HEX_REGEX.test(hex)) {
this._iso = 'XRP'
} else if (STANDARD_FORMAT_HEX_REGEX.test(hex)) {
this._iso = isoCodeFromHex(this.bytes.slice(12, 15))
} else {
this._iso = isoCodeFromHex(code)
this._iso = null
}
}