mirror of https://github.com/Chocobozzz/PeerTube
59 lines
1.6 KiB
TypeScript
59 lines
1.6 KiB
TypeScript
import Bluebird from 'bluebird'
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import { URL } from 'url'
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import { ActivityPubOrderedCollection } from '@peertube/peertube-models'
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import { retryTransactionWrapper } from '@server/helpers/database-utils.js'
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import { logger } from '../../helpers/logger.js'
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import { ACTIVITY_PUB, WEBSERVER } from '../../initializers/constants.js'
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import { fetchAP } from './activity.js'
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type HandlerFunction<T> = (items: T[]) => (Promise<any> | Bluebird<any>)
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type CleanerFunction = (startedDate: Date) => Promise<any>
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async function crawlCollectionPage <T> (argUrl: string, handler: HandlerFunction<T>, cleaner?: CleanerFunction) {
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let url = argUrl
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logger.info('Crawling ActivityPub data on %s.', url)
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const startDate = new Date()
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const response = await fetchAP<ActivityPubOrderedCollection<T>>(url)
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const firstBody = response.body
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const limit = ACTIVITY_PUB.FETCH_PAGE_LIMIT
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let i = 0
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let nextLink = firstBody.first
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while (nextLink && i < limit) {
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let body: any
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if (typeof nextLink === 'string') {
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// Don't crawl ourselves
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const remoteHost = new URL(nextLink).host
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if (remoteHost === WEBSERVER.HOST) continue
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url = nextLink
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const res = await fetchAP<ActivityPubOrderedCollection<T>>(url)
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body = res.body
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} else {
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// nextLink is already the object we want
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body = nextLink
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}
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nextLink = body.next
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i++
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if (Array.isArray(body.orderedItems)) {
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const items = body.orderedItems
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logger.info('Processing %i ActivityPub items for %s.', items.length, url)
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await handler(items)
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}
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}
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if (cleaner) await retryTransactionWrapper(cleaner, startDate)
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}
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export {
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crawlCollectionPage
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}
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