129 lines
2.4 KiB
JavaScript
129 lines
2.4 KiB
JavaScript
const crypto = require('crypto')
|
|
const fs = require('fs/promises')
|
|
|
|
const storePath = '/data/store.json'
|
|
|
|
async function readStore() {
|
|
try {
|
|
const data = await fs.readFile(storePath, 'utf8')
|
|
return JSON.parse(data)
|
|
} catch (error) {
|
|
if (error.code === 'ENOENT') {
|
|
return {}
|
|
}
|
|
|
|
throw error
|
|
}
|
|
}
|
|
|
|
async function writeStore(store) {
|
|
const temporaryPath =
|
|
`${storePath}.${crypto.randomBytes(8).toString('hex')}.tmp`
|
|
|
|
await fs.writeFile(
|
|
temporaryPath,
|
|
JSON.stringify(store, null, 2) + '\n',
|
|
{
|
|
mode: 0o600,
|
|
},
|
|
)
|
|
|
|
await fs.rename(temporaryPath, storePath)
|
|
}
|
|
|
|
function normalizeAddress(address) {
|
|
if (typeof address !== 'string') {
|
|
return null
|
|
}
|
|
|
|
const normalized = address.trim()
|
|
|
|
if (!normalized) {
|
|
return null
|
|
}
|
|
|
|
return normalized
|
|
}
|
|
|
|
function normalizeLabel(label) {
|
|
if (typeof label !== 'string') {
|
|
return undefined
|
|
}
|
|
|
|
const normalized = label.trim()
|
|
|
|
return normalized || undefined
|
|
}
|
|
|
|
async function listAddresses() {
|
|
const store = await readStore()
|
|
|
|
return Array.isArray(store.addresses)
|
|
? store.addresses
|
|
: []
|
|
}
|
|
|
|
async function addAddress(address, label) {
|
|
const normalizedAddress = normalizeAddress(address)
|
|
|
|
if (!normalizedAddress) {
|
|
throw new Error('Bitcoin address is required')
|
|
}
|
|
|
|
const addresses = await listAddresses()
|
|
|
|
if (addresses.some((item) => item.address === normalizedAddress)) {
|
|
throw new Error('Bitcoin address is already being watched')
|
|
}
|
|
|
|
const entry = {
|
|
address: normalizedAddress,
|
|
}
|
|
|
|
const normalizedLabel = normalizeLabel(label)
|
|
|
|
if (normalizedLabel) {
|
|
entry.label = normalizedLabel
|
|
}
|
|
|
|
const store = await readStore()
|
|
|
|
store.addresses = [...addresses, entry]
|
|
|
|
await writeStore(store)
|
|
|
|
return entry
|
|
}
|
|
|
|
async function removeAddress(address) {
|
|
const normalizedAddress = normalizeAddress(address)
|
|
|
|
if (!normalizedAddress) {
|
|
throw new Error('Bitcoin address is required')
|
|
}
|
|
|
|
const store = await readStore()
|
|
const addresses = Array.isArray(store.addresses)
|
|
? store.addresses
|
|
: []
|
|
|
|
const filtered = addresses.filter(
|
|
(item) => item.address !== normalizedAddress,
|
|
)
|
|
|
|
if (filtered.length === addresses.length) {
|
|
throw new Error('Bitcoin address is not being watched')
|
|
}
|
|
|
|
store.addresses = filtered
|
|
|
|
await writeStore(store)
|
|
|
|
return true
|
|
}
|
|
|
|
module.exports = {
|
|
listAddresses,
|
|
addAddress,
|
|
removeAddress,
|
|
} |