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import validator from 'validator'
import { Activity, ActivityType } from '../../../../shared/models/activitypub'
import { sanitizeAndCheckActorObject } from './actor'
import { isActivityPubUrlValid, isBaseActivityValid, isObjectValid } from './misc'
import { isDislikeActivityValid } from './rate'
import { sanitizeAndCheckVideoCommentObject } from './video-comments'
import { sanitizeAndCheckVideoTorrentObject } from './videos'
import { isViewActivityValid } from './view'
import { exists } from '../misc'
import { isCacheFileObjectValid } from './cache-file'
import { isFlagActivityValid } from './flag'
import { isPlaylistObjectValid } from './playlist'
function isRootActivityValid (activity: any) {
return isCollection(activity) || isActivity(activity)
}
function isCollection (activity: any) {
return (activity.type === 'Collection' || activity.type === 'OrderedCollection') &&
validator.isInt(activity.totalItems, { min: 0 }) &&
Array.isArray(activity.items)
}
function isActivity (activity: any) {
return isActivityPubUrlValid(activity.id) &&
exists(activity.actor) &&
(isActivityPubUrlValid(activity.actor) || isActivityPubUrlValid(activity.actor.id))
}
const activityCheckers: { [ P in ActivityType ]: (activity: Activity) => boolean } = {
Create: checkCreateActivity,
Update: checkUpdateActivity,
Delete: checkDeleteActivity,
Follow: checkFollowActivity,
Accept: checkAcceptActivity,
Reject: checkRejectActivity,
Announce: checkAnnounceActivity,
Undo: checkUndoActivity,
Like: checkLikeActivity,
View: checkViewActivity,
Flag: checkFlagActivity,
Dislike: checkDislikeActivity
}
function isActivityValid (activity: any) {
const checker = activityCheckers[activity.type]
// Unknown activity type
if (!checker) return false
return checker(activity)
}
// ---------------------------------------------------------------------------
export {
isRootActivityValid,
isActivityValid
}
// ---------------------------------------------------------------------------
function checkViewActivity (activity: any) {
return isBaseActivityValid(activity, 'View') &&
isViewActivityValid(activity)
}
function checkFlagActivity (activity: any) {
return isBaseActivityValid(activity, 'Flag') &&
isFlagActivityValid(activity)
}
function checkDislikeActivity (activity: any) {
return isBaseActivityValid(activity, 'Dislike') &&
isDislikeActivityValid(activity)
}
function checkCreateActivity (activity: any) {
return isBaseActivityValid(activity, 'Create') &&
(
isViewActivityValid(activity.object) ||
isDislikeActivityValid(activity.object) ||
isFlagActivityValid(activity.object) ||
isPlaylistObjectValid(activity.object) ||
isCacheFileObjectValid(activity.object) ||
sanitizeAndCheckVideoCommentObject(activity.object) ||
sanitizeAndCheckVideoTorrentObject(activity.object)
)
}
function checkUpdateActivity (activity: any) {
return isBaseActivityValid(activity, 'Update') &&
(
isCacheFileObjectValid(activity.object) ||
isPlaylistObjectValid(activity.object) ||
sanitizeAndCheckVideoTorrentObject(activity.object) ||
sanitizeAndCheckActorObject(activity.object)
)
}
function checkDeleteActivity (activity: any) {
// We don't really check objects
return isBaseActivityValid(activity, 'Delete') &&
isObjectValid(activity.object)
}
function checkFollowActivity (activity: any) {
return isBaseActivityValid(activity, 'Follow') &&
isObjectValid(activity.object)
}
function checkAcceptActivity (activity: any) {
return isBaseActivityValid(activity, 'Accept')
}
function checkRejectActivity (activity: any) {
return isBaseActivityValid(activity, 'Reject')
}
function checkAnnounceActivity (activity: any) {
return isBaseActivityValid(activity, 'Announce') &&
isObjectValid(activity.object)
}
function checkUndoActivity (activity: any) {
return isBaseActivityValid(activity, 'Undo') &&
(
checkFollowActivity(activity.object) ||
checkLikeActivity(activity.object) ||
checkDislikeActivity(activity.object) ||
checkAnnounceActivity(activity.object) ||
checkCreateActivity(activity.object)
)
}
function checkLikeActivity (activity: any) {
return isBaseActivityValid(activity, 'Like') &&
isObjectValid(activity.object)
}
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