Better lightning address error handling (#2089)
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27
lib/lnurl.js
27
lib/lnurl.js
@ -3,6 +3,7 @@ import { bech32 } from 'bech32'
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import { lnAddrSchema } from './validate'
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import { FetchTimeoutError } from '@/lib/fetch'
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import { WALLET_CREATE_INVOICE_TIMEOUT_MS } from './constants'
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import { assertContentTypeJson, assertResponseOk, ResponseAssertError } from '@/lib/url'
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export function encodeLNUrl (url) {
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const words = bech32.toWords(Buffer.from(url.toString(), 'utf8'))
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@ -35,25 +36,33 @@ export async function lnAddrOptions (addr, { signal } = {}) {
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// support HTTP and HTTPS during development
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protocol = process.env.NEXT_PUBLIC_URL.split('://')[0]
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}
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const unexpectedErrorMessage = `An unexpected error occurred fetching the Lightning Address metadata for ${addr}. Check the address and try again.`
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let res
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const unexpectedErrorMessage = 'Lightning address validation failed. Make sure you entered the correct address.'
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let body
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const url = `${protocol}://${domain}/.well-known/lnurlp/${name}`
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try {
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const req = await fetch(url, { signal })
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res = await req.json()
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const res = await fetch(url, { signal })
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assertResponseOk(res)
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assertContentTypeJson(res)
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body = await res.json()
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} catch (err) {
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console.log('Error fetching lnurlp', err)
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console.log('Error fetching lnurlp:', err)
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if (err instanceof ResponseAssertError) {
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throw err
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}
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if (err.name === 'TimeoutError') {
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throw new FetchTimeoutError('GET', url, WALLET_CREATE_INVOICE_TIMEOUT_MS)
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}
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// If `fetch` fails, or if `req.json` fails, catch it here and surface a reasonable error
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if (err.name === 'SyntaxError') {
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throw new Error(`GET ${url}: invalid JSON`)
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}
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throw new Error(unexpectedErrorMessage)
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}
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if (res.status === 'ERROR') {
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if (body.status === 'ERROR') {
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// if the response doesn't adhere to spec by providing a `reason` entry, returns a default error message
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throw new Error(res.reason ?? unexpectedErrorMessage)
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throw new Error(body.reason ?? unexpectedErrorMessage)
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}
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const { minSendable, maxSendable, ...leftOver } = res
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const { minSendable, maxSendable, ...leftOver } = body
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return { min: minSendable / 1000, max: maxSendable / 1000, ...leftOver }
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}
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@ -213,7 +213,7 @@ export function parseNwcUrl (walletConnectUrl) {
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return params
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}
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class ResponseAssertError extends Error {
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export class ResponseAssertError extends Error {
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constructor (res, { method } = {}) {
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if (method) {
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super(`${method} ${res.url}: ${res.status} ${res.statusText}`)
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