85 lines
2.6 KiB
TypeScript
85 lines
2.6 KiB
TypeScript
import { Router, Request, Response } from 'express'
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import request from 'request'
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import config from '../config/config'
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export class UrlCheckRouter {
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public router: Router
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/**
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* Initialize the UrlCheckRouter
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*/
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public constructor() {
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this.router = Router()
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}
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public checkUrl(req: Request, res: Response) {
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let { url } = req.body
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if (!url) {
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return res.send({ status: 'error', message: 'missing url' })
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}
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// map native IPFS URLs to gateway URLs
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if (url.includes('ipfs://')) {
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const cid = url.split('ipfs://')[1]
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url = `${config.ipfsGatewayUrl}/ipfs/${cid}`
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}
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request(
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{
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method: 'HEAD',
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url,
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headers: { Range: 'bytes=0-' }
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},
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(error, response) => {
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if (
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response &&
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(response.statusCode.toString().startsWith('2') ||
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response.statusCode.toString().startsWith('416'))
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) {
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const result: any = {}
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result.found = true
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if (response.headers['content-length']) {
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result.contentLength = parseInt(
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response.headers['content-length']
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) // convert to number
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}
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if (response.headers['content-type']) {
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const typeAndCharset = response.headers[
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'content-type'
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].split(';')
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result.contentType = typeAndCharset[0] // eslint-disable-line prefer-destructuring
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if (typeAndCharset[1]) {
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/* eslint-disable prefer-destructuring */
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result.contentCharset = typeAndCharset[1].split(
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'='
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)[1]
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/* eslint-enable prefer-destructuring */
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}
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}
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return res.send({ status: 'success', result })
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}
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return res.send({ status: 'error', message: error })
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}
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)
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}
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/**
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* Take each handler, and attach to one of the Express.Router's
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* endpoints.
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*/
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public init() {
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this.router.post('/', this.checkUrl)
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}
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}
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// Create the MeRouter, and export its configured Express.Router
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const urlCheckRoutes = new UrlCheckRouter()
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urlCheckRoutes.init()
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export default urlCheckRoutes.router
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