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79 lines
2.0 KiB
79 lines
2.0 KiB
6 years ago
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/*!
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* accounts/headers-fees-rest-api.js
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* Copyright © 2019 – Katana Cryptographic Ltd. All Rights Reserved.
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*/
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'use strict'
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const validator = require('validator')
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const Logger = require('../lib/logger')
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const errors = require('../lib/errors')
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const rpcHeaders = require('../lib/bitcoind-rpc/headers')
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const authMgr = require('../lib/auth/authorizations-manager')
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const HttpServer = require('../lib/http-server/http-server')
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const apiHelper = require('./api-helper')
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const debugApi = !!(process.argv.indexOf('api-debug') > -1)
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/**
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* Headers API endpoints
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*/
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class HeadersRestApi {
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/**
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* Constructor
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* @param {pushtx.HttpServer} httpServer - HTTP server
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*/
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constructor(httpServer) {
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this.httpServer = httpServer
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// Establish routes
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this.httpServer.app.get(
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'/header/:hash',
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authMgr.checkAuthentication.bind(authMgr),
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this.validateArgsGetHeader.bind(this),
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this.getHeader.bind(this),
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HttpServer.sendAuthError
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)
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}
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/**
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* Retrieve the block header for a given hash
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* @param {object} req - http request object
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* @param {object} res - http response object
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*/
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async getHeader(req, res) {
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try {
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const header = await rpcHeaders.getHeader(req.params.hash)
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HttpServer.sendRawData(res, header)
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} catch(e) {
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HttpServer.sendError(res, e)
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} finally {
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debugApi && Logger.info(`Completed GET /header/${req.params.hash}`)
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}
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}
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/**
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* Validate request arguments
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* @param {object} req - http request object
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* @param {object} res - http response object
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* @param {function} next - next express middleware
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*/
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validateArgsGetHeader(req, res, next) {
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const isValidHash = validator.isHash(req.params.hash, 'sha256')
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if (!isValidHash) {
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HttpServer.sendError(res, errors.body.INVDATA)
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Logger.error(
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req.params.hash,
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'HeadersRestApi.validateArgsGetHeader() : Invalid hash'
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)
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} else {
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next()
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}
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}
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}
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module.exports = HeadersRestApi
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