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import sqlite3 from 'sqlite3'
import logger from 'winston'
const path = require('path')
// eslint-disable-next-line
export type QueueRecord = {
subdomainName: string,
owner: string,
sequenceNumber: number,
zonefile: string,
signature: string,
};
// eslint-disable-next-line
export type SubdomainRecord = {
subdomainName: string,
owner: string,
sequenceNumber: number,
zonefile: string,
signature: string,
status: string,
queue_ix: number,
};
const CREATE_QUEUE = `CREATE TABLE subdomain_queue (
queue_ix INTEGER PRIMARY KEY,
subdomainName TEXT NOT NULL,
owner TEXT NOT NULL,
sequenceNumber TEXT NOT NULL,
zonefile TEXT NOT NULL,
signature TEXT DEFAULT NULL,
status TEXT NOT NULL,
status_more TEXT,
received_ts DATETIME DEFAULT CURRENT_TIMESTAMP
);`
const CREATE_QUEUE_INDEX = `CREATE INDEX subdomain_queue_index ON
subdomain_queue (subdomainName);`
const CREATE_QUEUE_RECEIVED_INDEX = `CREATE INDEX subdomain_queue_received_index ON
subdomain_queue (received_ts);`
const CREATE_MYZONEFILE_BACKUPS = `CREATE TABLE subdomain_zonefile_backups (
backup_ix INTEGER PRIMARY KEY,
zonefile TEXT NOT NULL,
timestamp DATETIME DEFAULT CURRENT_TIMESTAMP
);`
const CREATE_TRANSACTIONS_TRACKED = `CREATE TABLE transactions_tracked (
tracker_ix INTEGER PRIMARY KEY,
txHash TEXT NOT NULL,
zonefile TEXT NOT NULL
);`
const CREATE_TX_INFO = `CREATE TABLE transactions_info (
txinfo_ix INTEGER PRIMARY KEY,
txHash TEXT NOT NULL UNIQUE,
blockHeight INTEGER DEFAULT 0
);`
const CREATE_IP_INFO = `CREATE TABLE ip_info (
ipinfo_ix INTEGER PRIMARY KEY,
ip_address TEXT NOT NULL,
owner TEXT NOT NULL,
queue_ix INTEGER NOT NULL
);`
const CREATE_IP_INFO_INDEX = `CREATE INDEX ip_info_index ON
ip_info (ip_address);`
const SUBDOMAIN_PAGE_SIZE = 100
function dbRun(
db: sqlite3.Database,
cmd: string,
args?: Array<Object>
): Promise<void> {
if (!args) {
args = []
}
return new Promise((resolve, reject) => {
db.run(cmd, args, (err) => {
Iif (err) {
reject(err)
} else {
resolve()
}
})
})
}
function dbAll(
db: sqlite3.Database,
cmd: string,
args?: Array<Object>
): Promise<Array<Object>> {
if (!args) {
args = []
}
return new Promise((resolve, reject) => {
db.all(cmd, args, (err, rows) => {
Iif (err) {
reject(err)
} else {
resolve(rows)
}
})
})
}
function isInMemory(dbPath: string) {
return dbPath.includes(':memory:')
}
export class RegistrarQueueDB {
dbLocation: string;
db: sqlite3.Database;
constructor(dbLocation: string) {
Eif (isInMemory(dbLocation)) {
this.dbLocation = dbLocation
} else {
const dbPath = path.resolve(__dirname, dbLocation)
this.dbLocation = dbPath
}
}
initialize(): Promise<void> {
return new Promise((resolve, reject) => {
this.db = new sqlite3.Database(
this.dbLocation,
sqlite3.OPEN_READWRITE,
(errOpen) => {
Iif (errOpen) {
logger.warn(`No database found ${this.dbLocation}, creating`)
this.db = new sqlite3.Database(
this.dbLocation,
sqlite3.OPEN_READWRITE | sqlite3.OPEN_CREATE,
(errCreate) => {
if (errCreate) {
reject(`Failed to load database ${this.dbLocation}`)
} else {
logger.warn('Creating tables...')
this.checkTablesAndCreate().then(() => resolve())
}
}
)
} else {
return this.checkTablesAndCreate().then(() => resolve())
}
}
)
})
}
async checkTablesAndCreate(): Promise<void> {
const needsCreation = await this.tablesExist()
Iif (needsCreation.length === 0) {
return
} else {
logger.info(`Creating ${needsCreation.length} tables.`)
await this.createTables(needsCreation)
}
}
tablesExist() {
return dbAll(
this.db,
'SELECT name FROM sqlite_master WHERE type = "table"'
).then((results) => {
const tables = results.map((x) => x.name)
const toCreate = []
Eif (tables.indexOf('subdomain_queue') < 0) {
toCreate.push(CREATE_QUEUE)
toCreate.push(CREATE_QUEUE_INDEX)
toCreate.push(CREATE_QUEUE_RECEIVED_INDEX)
}
Eif (tables.indexOf('subdomain_zonefile_backups') < 0) {
toCreate.push(CREATE_MYZONEFILE_BACKUPS)
}
Eif (tables.indexOf('transactions_tracked') < 0) {
toCreate.push(CREATE_TRANSACTIONS_TRACKED)
}
Eif (tables.indexOf('transactions_info') < 0) {
toCreate.push(CREATE_TX_INFO)
}
Eif (tables.indexOf('ip_info') < 0) {
toCreate.push(CREATE_IP_INFO)
toCreate.push(CREATE_IP_INFO_INDEX)
}
return toCreate
})
}
async createTables(toCreate: Array<string>): Promise<void> {
for (const createCmd of toCreate) {
await dbRun(this.db, createCmd)
}
}
addToQueue(
subdomainName: string,
owner: string,
sequenceNumber: number,
zonefile: string
): Promise<void> {
const dbCmd =
'INSERT INTO subdomain_queue ' +
'(subdomainName, owner, sequenceNumber, zonefile, status) VALUES (?, ?, ?, ?, ?)'
const dbArgs = [subdomainName, owner, sequenceNumber, zonefile, 'received']
return dbRun(this.db, dbCmd, dbArgs)
}
async makeTransferUpdates(
transferedSubdomains: QueueRecord[],
txHash: string
): Promise<void> {
const dbCmd =
'INSERT INTO subdomain_queue ' +
'(subdomainName, owner, sequenceNumber, zonefile, signature, status, status_more) VALUES ' +
'(?, ?, ?, ?, ?, ?, ?)'
Promise.all(transferedSubdomains.map((subdomain) => dbRun(this.db, dbCmd, [
subdomain.subdomainName,
subdomain.owner,
subdomain.sequenceNumber,
subdomain.zonefile,
subdomain.signature,
'submitted',
txHash
])))
}
logTransferRequestorData(
subdomainName: string,
ownerAddress: string,
ipAddress: string
) {
const lookup = `SELECT queue_ix FROM subdomain_queue WHERE subdomainName = ?
AND owner = ? AND sequenceNumber = 1`
const insert =
'INSERT INTO ip_info (ip_address, owner, queue_ix) VALUES (?, ?, ?)'
return dbAll(this.db, lookup, [subdomainName, ownerAddress]).then(
(results) => {
Iif (results.length != 1) {
throw new Error('No queued entry found.')
}
const queueIndex = results[0].queue_ix
return dbRun(this.db, insert, [ipAddress, ownerAddress, queueIndex])
}
)
}
async updateStatusFor(
subdomains: Array<string>,
status: string,
statusMore: string
): Promise<string> {
const cmd =
'UPDATE subdomain_queue SET status = ?, status_more = ? WHERE subdomainName = ?'
await Promise.all(
subdomains.map((name) => dbRun(this.db, cmd, [status, statusMore, name]))
)
return statusMore
}
logRequestorData(
subdomainName: string,
ownerAddress: string,
ipAddress: string
) {
const lookup = `SELECT queue_ix FROM subdomain_queue WHERE subdomainName = ?
AND owner = ? AND sequenceNumber = 0`
const insert =
'INSERT INTO ip_info (ip_address, owner, queue_ix) VALUES (?, ?, ?)'
return dbAll(this.db, lookup, [subdomainName, ownerAddress]).then(
(results) => {
if (results.length != 1) {
throw new Error('No queued entry found.')
}
const queueIndex = results[0].queue_ix
return dbRun(this.db, insert, [ipAddress, ownerAddress, queueIndex])
}
)
}
getOwnerAddressCount(ownerAddress: string) {
const lookup = 'SELECT * FROM ip_info WHERE owner = ?'
return dbAll(this.db, lookup, [ownerAddress]).then(
(results) => results.length
)
}
getIPAddressCount(ipAddress: string) {
const lookup = 'SELECT * FROM ip_info WHERE ip_address = ?'
return dbAll(this.db, lookup, [ipAddress]).then(
(results) => results.length
)
}
async fetchQueue(): Promise<QueueRecord[]> {
const cmd =
'SELECT subdomainName, owner, sequenceNumber, zonefile, signature' +
' FROM subdomain_queue WHERE status = "received"'
const results: {
subdomainName: string,
owner: string,
sequenceNumber: string,
zonefile: string,
signature: string,
}[] = await dbAll(this.db, cmd)
return results.map((x) => {
const out = {
subdomainName: x.subdomainName,
owner: x.owner,
sequenceNumber: parseInt(x.sequenceNumber),
zonefile: x.zonefile,
signature: x.signature
}
return out
})
}
getStatusRecord(subdomainName: string) {
const lookup =
'SELECT status, status_more, owner, zonefile FROM subdomain_queue' +
' WHERE subdomainName = ? ORDER BY queue_ix DESC LIMIT 1'
return dbAll(this.db, lookup, [subdomainName])
}
async getSubdomainRecord(subdomainName: string): Promise<SubdomainRecord> {
const lookup =
'SELECT subdomainName, owner, sequenceNumber, zonefile, signature, status, queue_ix' +
' FROM subdomain_queue' +
' WHERE subdomainName = ? ORDER BY queue_ix DESC LIMIT 1'
const result = await dbAll(this.db, lookup, [subdomainName])
Iif (result.length != 1) {
throw new Error('no subdomain found')
}
return {
subdomainName: result[0].subdomainName,
owner: result[0].owner,
sequenceNumber: parseInt(result[0].sequenceNumber),
zonefile: result[0].zonefile,
signature: result[0].signature,
status: result[0].status,
queue_ix: result[0].queue_ix
}
}
async listSubdomains(
iterator: number,
timeLimit: number
): Promise<SubdomainRecord[]> {
const listSQL =
'SELECT subdomainName, owner, sequenceNumber, zonefile, signature, ' +
'status, queue_ix FROM subdomain_queue WHERE ' +
'queue_ix >= ? AND received_ts >= DATETIME(?, "unixepoch") ORDER BY queue_ix LIMIT ?'
const results: {
subdomainName: string,
owner: string,
sequenceNumber: string,
zonefile: string,
signature: string,
status: string,
queue_ix: number,
}[] = await dbAll(this.db, listSQL, [
iterator,
timeLimit,
SUBDOMAIN_PAGE_SIZE
])
return results.map((x) => {
const out = {
subdomainName: x.subdomainName,
owner: x.owner,
sequenceNumber: parseInt(x.sequenceNumber),
zonefile: x.zonefile,
signature: x.signature,
status: x.status,
queue_ix: x.queue_ix
}
return out
})
}
backupZonefile(zonefile: string): Promise<void> {
return dbRun(
this.db,
'INSERT INTO subdomain_zonefile_backups (zonefile) VALUES (?)',
[zonefile]
)
}
async trackTransaction(txHash: string, zonefile: string): Promise<string> {
await dbRun(
this.db,
'INSERT INTO transactions_tracked (txHash, zonefile) VALUES (?, ?)',
[txHash, zonefile]
)
return txHash
}
getTrackedTransactions() {
return dbAll(
this.db,
'SELECT t.txHash, t.zonefile, IFNULL(ti.blockHeight, 0) as blockHeight FROM transactions_tracked as t ' +
'LEFT JOIN transactions_info as ti ON t.txHash = ti.txHash'
)
}
async updateTransactionHeights(
transactions: Array<{
txHash: string,
blockHeight: number,
status: boolean,
}>
): Promise<void> {
const cmd =
'REPLACE INTO transactions_info(txHash, blockHeight) VALUES (?, ?)'
await Promise.all(
transactions.map((entry) =>
dbRun(this.db, cmd, [entry.txHash, entry.blockHeight])
)
)
}
async flushTrackedTransactions(
transactions: Array<{
txHash: string,
blockHeight: number,
status: boolean,
}>
): Promise<void> {
let cmd = 'DELETE FROM transactions_tracked WHERE txHash = ?'
await Promise.all(
transactions.map((entry) => dbRun(this.db, cmd, [entry.txHash]))
)
cmd = 'DELETE FROM transactions_info WHERE txHash = ?'
await Promise.all(
transactions.map((entry) => dbRun(this.db, cmd, [entry.txHash]))
)
}
shutdown(): Promise<void> {
return new Promise((resolve, reject) => {
this.db.close((err) => {
Iif (err) {
reject(err)
} else {
resolve()
}
})
this.db = undefined
})
}
}
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