From 5c3fa5b103387786d610f86ace05865a8e7e15b4 Mon Sep 17 00:00:00 2001 From: Kittisak Phormraksa Date: Sun, 28 Apr 2024 18:28:41 +0700 Subject: [PATCH] [web] Decode invoice using bolt11 --- web/package-lock.json | 308 ++++++++++++++++++++++++++++++- web/package.json | 1 + web/src/app/(auth)/send/Send.tsx | 45 ++++- web/src/utils/invoice.ts | 16 +- 4 files changed, 357 insertions(+), 13 deletions(-) diff --git a/web/package-lock.json b/web/package-lock.json index c264706..de8cb5e 100644 --- a/web/package-lock.json +++ b/web/package-lock.json @@ -10,6 +10,7 @@ "dependencies": { "@headlessui/react": "^1.7.19", "axios": "^1.6.8", + "bolt11": "^1.4.1", "date-fns": "^3.6.0", "event-source-polyfill": "^1.0.31", "js-cookie": "^3.0.5", @@ -266,6 +267,17 @@ "node": ">= 10" } }, + "node_modules/@noble/hashes": { + "version": "1.4.0", + "resolved": "https://registry.npmjs.org/@noble/hashes/-/hashes-1.4.0.tgz", + "integrity": 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"resolved": "https://registry.npmjs.org/util-deprecate/-/util-deprecate-1.0.2.tgz", - "integrity": "sha512-EPD5q1uXyFxJpCrLnCc1nHnq3gOa6DZBocAIiI2TaSCA7VCJ1UJDMagCzIkXNsUYfD1daK//LTEQ8xiIbrHtcw==", - "dev": true + "integrity": "sha512-EPD5q1uXyFxJpCrLnCc1nHnq3gOa6DZBocAIiI2TaSCA7VCJ1UJDMagCzIkXNsUYfD1daK//LTEQ8xiIbrHtcw==" + }, + "node_modules/varuint-bitcoin": { + "version": "1.1.2", + "resolved": "https://registry.npmjs.org/varuint-bitcoin/-/varuint-bitcoin-1.1.2.tgz", + "integrity": "sha512-4EVb+w4rx+YfVM32HQX42AbbT7/1f5zwAYhIujKXKk8NQK+JfRVl3pqT3hjNn/L+RstigmGGKVwHA/P0wgITZw==", + "dependencies": { + "safe-buffer": "^5.1.1" + } }, "node_modules/which": { "version": "2.0.2", diff --git a/web/package.json b/web/package.json index 9808de1..7934c39 100644 --- a/web/package.json +++ b/web/package.json @@ -11,6 +11,7 @@ "dependencies": { "@headlessui/react": "^1.7.19", "axios": "^1.6.8", + "bolt11": "^1.4.1", "date-fns": "^3.6.0", "event-source-polyfill": "^1.0.31", "js-cookie": "^3.0.5", diff --git a/web/src/app/(auth)/send/Send.tsx b/web/src/app/(auth)/send/Send.tsx index 9a51fd6..1166072 100644 --- a/web/src/app/(auth)/send/Send.tsx +++ b/web/src/app/(auth)/send/Send.tsx @@ -1,20 +1,22 @@ 'use client' import { Transition } from '@headlessui/react' -import { FC, Fragment, useState } from 'react' +import { FC, Fragment, useEffect, useMemo, useState } from 'react' import { FaRegCheckCircle } from 'react-icons/fa' -import { RiQrScan2Line, RiSendPlaneFill } from 'react-icons/ri' +import { RiErrorWarningFill, RiQrScan2Line, RiSendPlaneFill } from 'react-icons/ri' import { toast } from 'react-toastify' import { LnFService } from '@/services/lnf' -import { validInvoice } from '@/utils/invoice' +import { decodeInvoice, validInvoice } from '@/utils/invoice' import QrScanModal from './QrScanModal' const Send: FC<{}> = () => { const [isLoading, setIsLoading] = useState(false) const [invoice, setInvoice] = useState('') + const [amountSat, setAmountSat] = useState(0) const [isOpenQRScan, setIsOpenQRScan] = useState(false) const [isPaymentSuccess, setIsPaymentSuccess] = useState(false) + const [isValidInvoice, setIsValidInvoice] = useState(false) const clearResult = () => { setIsLoading(false) @@ -47,6 +49,37 @@ const Send: FC<{}> = () => { setIsLoading(false) } + useEffect(() => { + const decoded = decodeInvoice(invoice) + if (!!decoded) { + setIsValidInvoice(true) + setAmountSat(decoded?.satoshis ?? 0) + } else { + setIsValidInvoice(false) + setAmountSat(0) + } + }, [invoice]) + + const sendBtnElem = useMemo(() => { + if (isLoading) return Loading... + + if (!!invoice && !isValidInvoice) { + return ( + + + Invalid invoice + + ) + } + + return ( + + + {!!amountSat ? `Send ${amountSat} sats` : 'Send'} + + ) + }, [invoice, isLoading, amountSat, isValidInvoice]) + return (
{!isPaymentSuccess && ( @@ -64,10 +97,10 @@ const Send: FC<{}> = () => {
diff --git a/web/src/utils/invoice.ts b/web/src/utils/invoice.ts index 08a4d25..b78952c 100644 --- a/web/src/utils/invoice.ts +++ b/web/src/utils/invoice.ts @@ -1,4 +1,16 @@ +import b11 from 'bolt11' + export const validInvoice = (invoice: string): boolean => { - const invoiceRegex = /^lnbc[a-zA-Z0-9]{200,}$/ - return invoiceRegex.test(invoice) + try { + const decoded = decodeInvoice(invoice) + return !!decoded?.complete + } catch (e) { + return false + } +} + +export const decodeInvoice = (invoice: string) => { + try { + return b11.decode(invoice) + } catch (e) {} }