PeerTube/server/helpers/custom-validators/activitypub/activity.ts

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import * as validator from 'validator'
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import { Activity, ActivityType } from '../../../../shared/models/activitypub'
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import {
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isActorAcceptActivityValid,
isActorDeleteActivityValid,
isActorFollowActivityValid,
isActorRejectActivityValid,
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isActorUpdateActivityValid
} from './actor'
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import { isAnnounceActivityValid } from './announce'
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import { isActivityPubUrlValid } from './misc'
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import { isDislikeActivityValid, isLikeActivityValid } from './rate'
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import { isUndoActivityValid } from './undo'
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import { isVideoCommentCreateActivityValid, isVideoCommentDeleteActivityValid } from './video-comments'
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import {
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isVideoFlagValid,
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isVideoTorrentDeleteActivityValid,
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sanitizeAndCheckVideoTorrentCreateActivity,
sanitizeAndCheckVideoTorrentUpdateActivity
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} from './videos'
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import { isViewActivityValid } from './view'
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import { exists } from '../misc'
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import { isCacheFileCreateActivityValid, isCacheFileUpdateActivityValid } from './cache-file'
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function isRootActivityValid (activity: any) {
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return Array.isArray(activity['@context']) && (
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(
(activity.type === 'Collection' || activity.type === 'OrderedCollection') &&
validator.isInt(activity.totalItems, { min: 0 }) &&
Array.isArray(activity.items)
) ||
(
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isActivityPubUrlValid(activity.id) &&
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exists(activity.actor) &&
(isActivityPubUrlValid(activity.actor) || isActivityPubUrlValid(activity.actor.id))
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)
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)
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}
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const activityCheckers: { [ P in ActivityType ]: (activity: Activity) => boolean } = {
Create: checkCreateActivity,
Update: checkUpdateActivity,
Delete: checkDeleteActivity,
Follow: checkFollowActivity,
Accept: checkAcceptActivity,
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Reject: checkRejectActivity,
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Announce: checkAnnounceActivity,
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Undo: checkUndoActivity,
Like: checkLikeActivity
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}
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function isActivityValid (activity: any) {
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const checker = activityCheckers[activity.type]
// Unknown activity type
if (!checker) return false
return checker(activity)
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}
// ---------------------------------------------------------------------------
export {
isRootActivityValid,
isActivityValid
}
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// ---------------------------------------------------------------------------
function checkCreateActivity (activity: any) {
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return isViewActivityValid(activity) ||
isDislikeActivityValid(activity) ||
sanitizeAndCheckVideoTorrentCreateActivity(activity) ||
isVideoFlagValid(activity) ||
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isVideoCommentCreateActivityValid(activity) ||
isCacheFileCreateActivityValid(activity)
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}
function checkUpdateActivity (activity: any) {
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return isCacheFileUpdateActivityValid(activity) ||
sanitizeAndCheckVideoTorrentUpdateActivity(activity) ||
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isActorUpdateActivityValid(activity)
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}
function checkDeleteActivity (activity: any) {
return isVideoTorrentDeleteActivityValid(activity) ||
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isActorDeleteActivityValid(activity) ||
isVideoCommentDeleteActivityValid(activity)
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}
function checkFollowActivity (activity: any) {
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return isActorFollowActivityValid(activity)
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}
function checkAcceptActivity (activity: any) {
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return isActorAcceptActivityValid(activity)
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}
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function checkRejectActivity (activity: any) {
return isActorRejectActivityValid(activity)
}
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function checkAnnounceActivity (activity: any) {
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return isAnnounceActivityValid(activity)
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}
function checkUndoActivity (activity: any) {
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return isUndoActivityValid(activity)
}
function checkLikeActivity (activity: any) {
return isLikeActivityValid(activity)
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}