tracker-rest-api.js

/*!
 * tracker/tracker-rest-api.js
 * Copyright (c) 2016-2019, Samourai Wallet (CC BY-NC-ND 4.0 License).
 */


import validator from 'validator'

import errors from '../lib/errors.js'
import authMgr from '../lib/auth/authorizations-manager.js'
import HttpServer from '../lib/http-server/http-server.js'
import network from '../lib/bitcoin/network.js'
import keysFile from '../keys/index.js'

const keys = keysFile[network.key]

/**
 * Tracker API endpoints
 */
class TrackerRestApi {

    /**
   * Constructor
   * @param {HttpServer} httpServer - HTTP server
   * @param {Tracker} tracker - tracker
   */
    constructor(httpServer, tracker) {
        this.httpServer = httpServer
        this.tracker = tracker

        // Establish routes. Proxy server strips /pushtx
        this.httpServer.app.get(
            `/${keys.prefixes.support}/rescan`,
            authMgr.checkHasAdminProfile.bind(authMgr),
            this.getBlocksRescan.bind(this),
        )
    }

    /**
   * Rescan a range of blocks
   */
    async getBlocksRescan(req, res) {
    // Check req.arguments
        if (!req.query)
            return HttpServer.sendError(res, errors.body.INVDATA)

        if (!req.query.fromHeight || !validator.isInt(req.query.fromHeight))
            return HttpServer.sendError(res, errors.body.INVDATA)

        if (req.query.toHeight && !validator.isInt(req.query.toHeight))
            return HttpServer.sendError(res, errors.body.INVDATA)

        // Retrieve the req.arguments
        const fromHeight = Number.parseInt(req.query.fromHeight, 10)
        const toHeight = req.query.toHeight ? Number.parseInt(req.query.toHeight, 10) : fromHeight

        if (req.query.toHeight && (toHeight < fromHeight))
            return HttpServer.sendError(res, errors.body.INVDATA)

        try {
            await this.tracker.blockchainProcessor.rescanBlocks(fromHeight, toHeight)
            const returnValue = {
                status: 'Rescan complete',
                fromHeight: fromHeight,
                toHeight: toHeight
            }
            HttpServer.sendRawData(res, JSON.stringify(returnValue, null, 2))
        } catch(error) {
            return HttpServer.sendError(res, error)
        }
    }

}

export default TrackerRestApi