19 files changed, 564 insertions, 0 deletions

diff --git a/packages/models/src/activitypub/activity.ts b/packages/models/src/activitypub/activity.ts
new file mode 100644
index 000000000..78a3ab33b
--- /dev/null
+++ b/packages/models/src/activitypub/activity.ts
@@ -0,0 +1,135 @@
+import { ActivityPubActor } from './activitypub-actor.js'
+import { ActivityPubSignature } from './activitypub-signature.js'
+import {
+  ActivityFlagReasonObject,
+  ActivityObject,
+  APObjectId,
+  CacheFileObject,
+  PlaylistObject,
+  VideoCommentObject,
+  VideoObject,
+  WatchActionObject
+} from './objects/index.js'
+
+export type ActivityUpdateObject =
+  Extract<ActivityObject, VideoObject | CacheFileObject | PlaylistObject | ActivityPubActor | string> | ActivityPubActor
+
+// Cannot Extract from Activity because of circular reference
+export type ActivityUndoObject =
+  ActivityFollow | ActivityLike | ActivityDislike | ActivityCreate<CacheFileObject | string> | ActivityAnnounce
+
+export type ActivityCreateObject =
+  Extract<ActivityObject, VideoObject | CacheFileObject | WatchActionObject | VideoCommentObject | PlaylistObject | string>
+
+export type Activity =
+  ActivityCreate<ActivityCreateObject> |
+  ActivityUpdate<ActivityUpdateObject> |
+  ActivityDelete |
+  ActivityFollow |
+  ActivityAccept |
+  ActivityAnnounce |
+  ActivityUndo<ActivityUndoObject> |
+  ActivityLike |
+  ActivityReject |
+  ActivityView |
+  ActivityDislike |
+  ActivityFlag
+
+export type ActivityType =
+  'Create' |
+  'Update' |
+  'Delete' |
+  'Follow' |
+  'Accept' |
+  'Announce' |
+  'Undo' |
+  'Like' |
+  'Reject' |
+  'View' |
+  'Dislike' |
+  'Flag'
+
+export interface ActivityAudience {
+  to: string[]
+  cc: string[]
+}
+
+export interface BaseActivity {
+  '@context'?: any[]
+  id: string
+  to?: string[]
+  cc?: string[]
+  actor: string | ActivityPubActor
+  type: ActivityType
+  signature?: ActivityPubSignature
+}
+
+export interface ActivityCreate <T extends ActivityCreateObject> extends BaseActivity {
+  type: 'Create'
+  object: T
+}
+
+export interface ActivityUpdate <T extends ActivityUpdateObject> extends BaseActivity {
+  type: 'Update'
+  object: T
+}
+
+export interface ActivityDelete extends BaseActivity {
+  type: 'Delete'
+  object: APObjectId
+}
+
+export interface ActivityFollow extends BaseActivity {
+  type: 'Follow'
+  object: string
+}
+
+export interface ActivityAccept extends BaseActivity {
+  type: 'Accept'
+  object: ActivityFollow
+}
+
+export interface ActivityReject extends BaseActivity {
+  type: 'Reject'
+  object: ActivityFollow
+}
+
+export interface ActivityAnnounce extends BaseActivity {
+  type: 'Announce'
+  object: APObjectId
+}
+
+export interface ActivityUndo <T extends ActivityUndoObject> extends BaseActivity {
+  type: 'Undo'
+  object: T
+}
+
+export interface ActivityLike extends BaseActivity {
+  type: 'Like'
+  object: APObjectId
+}
+
+export interface ActivityView extends BaseActivity {
+  type: 'View'
+  actor: string
+  object: APObjectId
+
+  // If sending a "viewer" event
+  expires?: string
+}
+
+export interface ActivityDislike extends BaseActivity {
+  id: string
+  type: 'Dislike'
+  actor: string
+  object: APObjectId
+}
+
+export interface ActivityFlag extends BaseActivity {
+  type: 'Flag'
+  content: string
+  object: APObjectId | APObjectId[]
+  tag?: ActivityFlagReasonObject[]
+  startAt?: number
+  endAt?: number
+}
diff --git a/packages/models/src/activitypub/activitypub-actor.ts b/packages/models/src/activitypub/activitypub-actor.ts
new file mode 100644
index 000000000..85b37c5ad
--- /dev/null
+++ b/packages/models/src/activitypub/activitypub-actor.ts
@@ -0,0 +1,34 @@
+import { ActivityIconObject, ActivityPubAttributedTo } from './objects/common-objects.js'
+
+export type ActivityPubActorType = 'Person' | 'Application' | 'Group' | 'Service' | 'Organization'
+
+export interface ActivityPubActor {
+  '@context': any[]
+  type: ActivityPubActorType
+  id: string
+  following: string
+  followers: string
+  playlists?: string
+  inbox: string
+  outbox: string
+  preferredUsername: string
+  url: string
+  name: string
+  endpoints: {
+    sharedInbox: string
+  }
+  summary: string
+  attributedTo: ActivityPubAttributedTo[]
+
+  support?: string
+  publicKey: {
+    id: string
+    owner: string
+    publicKeyPem: string
+  }
+
+  image?: ActivityIconObject | ActivityIconObject[]
+  icon?: ActivityIconObject | ActivityIconObject[]
+
+  published?: string
+}
diff --git a/packages/models/src/activitypub/activitypub-collection.ts b/packages/models/src/activitypub/activitypub-collection.ts
new file mode 100644
index 000000000..b98ad37c2
--- /dev/null
+++ b/packages/models/src/activitypub/activitypub-collection.ts
@@ -0,0 +1,9 @@
+import { Activity } from './activity.js'
+
+export interface ActivityPubCollection {
+  '@context': string[]
+  type: 'Collection' | 'CollectionPage'
+  totalItems: number
+  partOf?: string
+  items: Activity[]
+}
diff --git a/packages/models/src/activitypub/activitypub-ordered-collection.ts b/packages/models/src/activitypub/activitypub-ordered-collection.ts
new file mode 100644
index 000000000..3de0890bb
--- /dev/null
+++ b/packages/models/src/activitypub/activitypub-ordered-collection.ts
@@ -0,0 +1,10 @@
+export interface ActivityPubOrderedCollection<T> {
+  '@context': string[]
+  type: 'OrderedCollection' | 'OrderedCollectionPage'
+  totalItems: number
+  orderedItems: T[]
+
+  partOf?: string
+  next?: string
+  first?: string
+}
diff --git a/packages/models/src/activitypub/activitypub-root.ts b/packages/models/src/activitypub/activitypub-root.ts
new file mode 100644
index 000000000..2fa1970c7
--- /dev/null
+++ b/packages/models/src/activitypub/activitypub-root.ts
@@ -0,0 +1,5 @@
+import { Activity } from './activity.js'
+import { ActivityPubCollection } from './activitypub-collection.js'
+import { ActivityPubOrderedCollection } from './activitypub-ordered-collection.js'
+
+export type RootActivity = Activity | ActivityPubCollection | ActivityPubOrderedCollection<Activity>
diff --git a/packages/models/src/activitypub/activitypub-signature.ts b/packages/models/src/activitypub/activitypub-signature.ts
new file mode 100644
index 000000000..fafdc246d
--- /dev/null
+++ b/packages/models/src/activitypub/activitypub-signature.ts
@@ -0,0 +1,6 @@
+export interface ActivityPubSignature {
+  type: string
+  created: Date
+  creator: string
+  signatureValue: string
+}
diff --git a/packages/models/src/activitypub/context.ts b/packages/models/src/activitypub/context.ts
new file mode 100644
index 000000000..e9df38207
--- /dev/null
+++ b/packages/models/src/activitypub/context.ts
@@ -0,0 +1,16 @@
+export type ContextType =
+  'Video' |
+  'Comment' |
+  'Playlist' |
+  'Follow' |
+  'Reject' |
+  'Accept' |
+  'View' |
+  'Announce' |
+  'CacheFile' |
+  'Delete' |
+  'Rate' |
+  'Flag' |
+  'Actor' |
+  'Collection' |
+  'WatchAction'
diff --git a/packages/models/src/activitypub/index.ts b/packages/models/src/activitypub/index.ts
new file mode 100644
index 000000000..f36aa1bc5
--- /dev/null
+++ b/packages/models/src/activitypub/index.ts
@@ -0,0 +1,9 @@
+export * from './objects/index.js'
+export * from './activity.js'
+export * from './activitypub-actor.js'
+export * from './activitypub-collection.js'
+export * from './activitypub-ordered-collection.js'
+export * from './activitypub-root.js'
+export * from './activitypub-signature.js'
+export * from './context.js'
+export * from './webfinger.js'
diff --git a/packages/models/src/activitypub/objects/abuse-object.ts b/packages/models/src/activitypub/objects/abuse-object.ts
new file mode 100644
index 000000000..2c0f2832b
--- /dev/null
+++ b/packages/models/src/activitypub/objects/abuse-object.ts
@@ -0,0 +1,15 @@
+import { ActivityFlagReasonObject } from './common-objects.js'
+
+export interface AbuseObject {
+  type: 'Flag'
+
+  content: string
+  mediaType: 'text/markdown'
+
+  object: string | string[]
+
+  tag?: ActivityFlagReasonObject[]
+
+  startAt?: number
+  endAt?: number
+}
diff --git a/packages/models/src/activitypub/objects/activitypub-object.ts b/packages/models/src/activitypub/objects/activitypub-object.ts
new file mode 100644
index 000000000..93c925ae0
--- /dev/null
+++ b/packages/models/src/activitypub/objects/activitypub-object.ts
@@ -0,0 +1,17 @@
+import { AbuseObject } from './abuse-object.js'
+import { CacheFileObject } from './cache-file-object.js'
+import { PlaylistObject } from './playlist-object.js'
+import { VideoCommentObject } from './video-comment-object.js'
+import { VideoObject } from './video-object.js'
+import { WatchActionObject } from './watch-action-object.js'
+
+export type ActivityObject =
+  VideoObject |
+  AbuseObject |
+  VideoCommentObject |
+  CacheFileObject |
+  PlaylistObject |
+  WatchActionObject |
+  string
+
+export type APObjectId = string | { id: string }
diff --git a/packages/models/src/activitypub/objects/cache-file-object.ts b/packages/models/src/activitypub/objects/cache-file-object.ts
new file mode 100644
index 000000000..a40ef339c
--- /dev/null
+++ b/packages/models/src/activitypub/objects/cache-file-object.ts
@@ -0,0 +1,9 @@
+import { ActivityVideoUrlObject, ActivityPlaylistUrlObject } from './common-objects.js'
+
+export interface CacheFileObject {
+  id: string
+  type: 'CacheFile'
+  object: string
+  expires: string
+  url: ActivityVideoUrlObject | ActivityPlaylistUrlObject
+}
diff --git a/packages/models/src/activitypub/objects/common-objects.ts b/packages/models/src/activitypub/objects/common-objects.ts
new file mode 100644
index 000000000..a332c26f3
--- /dev/null
+++ b/packages/models/src/activitypub/objects/common-objects.ts
@@ -0,0 +1,130 @@
+import { AbusePredefinedReasonsString } from '../../moderation/abuse/abuse-reason.model.js'
+
+export interface ActivityIdentifierObject {
+  identifier: string
+  name: string
+  url?: string
+}
+
+export interface ActivityIconObject {
+  type: 'Image'
+  url: string
+  mediaType: string
+  width?: number
+  height?: number
+}
+
+export type ActivityVideoUrlObject = {
+  type: 'Link'
+  mediaType: 'video/mp4' | 'video/webm' | 'video/ogg'
+  href: string
+  height: number
+  size: number
+  fps: number
+}
+
+export type ActivityPlaylistSegmentHashesObject = {
+  type: 'Link'
+  name: 'sha256'
+  mediaType: 'application/json'
+  href: string
+}
+
+export type ActivityVideoFileMetadataUrlObject = {
+  type: 'Link'
+  rel: [ 'metadata', any ]
+  mediaType: 'application/json'
+  height: number
+  href: string
+  fps: number
+}
+
+export type ActivityTrackerUrlObject = {
+  type: 'Link'
+  rel: [ 'tracker', 'websocket' | 'http' ]
+  name: string
+  href: string
+}
+
+export type ActivityStreamingPlaylistInfohashesObject = {
+  type: 'Infohash'
+  name: string
+}
+
+export type ActivityPlaylistUrlObject = {
+  type: 'Link'
+  mediaType: 'application/x-mpegURL'
+  href: string
+  tag?: ActivityTagObject[]
+}
+
+export type ActivityBitTorrentUrlObject = {
+  type: 'Link'
+  mediaType: 'application/x-bittorrent' | 'application/x-bittorrent;x-scheme-handler/magnet'
+  href: string
+  height: number
+}
+
+export type ActivityMagnetUrlObject = {
+  type: 'Link'
+  mediaType: 'application/x-bittorrent;x-scheme-handler/magnet'
+  href: string
+  height: number
+}
+
+export type ActivityHtmlUrlObject = {
+  type: 'Link'
+  mediaType: 'text/html'
+  href: string
+}
+
+export interface ActivityHashTagObject {
+  type: 'Hashtag'
+  href?: string
+  name: string
+}
+
+export interface ActivityMentionObject {
+  type: 'Mention'
+  href?: string
+  name: string
+}
+
+export interface ActivityFlagReasonObject {
+  type: 'Hashtag'
+  name: AbusePredefinedReasonsString
+}
+
+export type ActivityTagObject =
+  ActivityPlaylistSegmentHashesObject
+  | ActivityStreamingPlaylistInfohashesObject
+  | ActivityVideoUrlObject
+  | ActivityHashTagObject
+  | ActivityMentionObject
+  | ActivityBitTorrentUrlObject
+  | ActivityMagnetUrlObject
+  | ActivityVideoFileMetadataUrlObject
+
+export type ActivityUrlObject =
+  ActivityVideoUrlObject
+  | ActivityPlaylistUrlObject
+  | ActivityBitTorrentUrlObject
+  | ActivityMagnetUrlObject
+  | ActivityHtmlUrlObject
+  | ActivityVideoFileMetadataUrlObject
+  | ActivityTrackerUrlObject
+
+export type ActivityPubAttributedTo = { type: 'Group' | 'Person', id: string } | string
+
+export interface ActivityTombstoneObject {
+  '@context'?: any
+  id: string
+  url?: string
+  type: 'Tombstone'
+  name?: string
+  formerType?: string
+  inReplyTo?: string
+  published: string
+  updated: string
+  deleted: string
+}
diff --git a/packages/models/src/activitypub/objects/index.ts b/packages/models/src/activitypub/objects/index.ts
new file mode 100644
index 000000000..510f621ea
--- /dev/null
+++ b/packages/models/src/activitypub/objects/index.ts
@@ -0,0 +1,9 @@
+export * from './abuse-object.js'
+export * from './activitypub-object.js'
+export * from './cache-file-object.js'
+export * from './common-objects.js'
+export * from './playlist-element-object.js'
+export * from './playlist-object.js'
+export * from './video-comment-object.js'
+export * from './video-object.js'
+export * from './watch-action-object.js'
diff --git a/packages/models/src/activitypub/objects/playlist-element-object.ts b/packages/models/src/activitypub/objects/playlist-element-object.ts
new file mode 100644
index 000000000..b85e4fe19
--- /dev/null
+++ b/packages/models/src/activitypub/objects/playlist-element-object.ts
@@ -0,0 +1,10 @@
+export interface PlaylistElementObject {
+  id: string
+  type: 'PlaylistElement'
+
+  url: string
+  position: number
+
+  startTimestamp?: number
+  stopTimestamp?: number
+}
diff --git a/packages/models/src/activitypub/objects/playlist-object.ts b/packages/models/src/activitypub/objects/playlist-object.ts
new file mode 100644
index 000000000..c68a28780
--- /dev/null
+++ b/packages/models/src/activitypub/objects/playlist-object.ts
@@ -0,0 +1,29 @@
+import { ActivityIconObject, ActivityPubAttributedTo } from './common-objects.js'
+
+export interface PlaylistObject {
+  id: string
+  type: 'Playlist'
+
+  name: string
+
+  content: string
+  mediaType: 'text/markdown'
+
+  uuid: string
+
+  totalItems: number
+  attributedTo: ActivityPubAttributedTo[]
+
+  icon?: ActivityIconObject
+
+  published: string
+  updated: string
+
+  orderedItems?: string[]
+
+  partOf?: string
+  next?: string
+  first?: string
+
+  to?: string[]
+}
diff --git a/packages/models/src/activitypub/objects/video-comment-object.ts b/packages/models/src/activitypub/objects/video-comment-object.ts
new file mode 100644
index 000000000..880dd2ee2
--- /dev/null
+++ b/packages/models/src/activitypub/objects/video-comment-object.ts
@@ -0,0 +1,16 @@
+import { ActivityPubAttributedTo, ActivityTagObject } from './common-objects.js'
+
+export interface VideoCommentObject {
+  type: 'Note'
+  id: string
+
+  content: string
+  mediaType: 'text/markdown'
+
+  inReplyTo: string
+  published: string
+  updated: string
+  url: string
+  attributedTo: ActivityPubAttributedTo
+  tag: ActivityTagObject[]
+}
diff --git a/packages/models/src/activitypub/objects/video-object.ts b/packages/models/src/activitypub/objects/video-object.ts
new file mode 100644
index 000000000..14afd85a2
--- /dev/null
+++ b/packages/models/src/activitypub/objects/video-object.ts
@@ -0,0 +1,74 @@
+import { LiveVideoLatencyModeType, VideoStateType } from '../../videos/index.js'
+import {
+  ActivityIconObject,
+  ActivityIdentifierObject,
+  ActivityPubAttributedTo,
+  ActivityTagObject,
+  ActivityUrlObject
+} from './common-objects.js'
+
+export interface VideoObject {
+  type: 'Video'
+  id: string
+  name: string
+  duration: string
+  uuid: string
+  tag: ActivityTagObject[]
+  category: ActivityIdentifierObject
+  licence: ActivityIdentifierObject
+  language: ActivityIdentifierObject
+  subtitleLanguage: ActivityIdentifierObject[]
+  views: number
+
+  sensitive: boolean
+
+  isLiveBroadcast: boolean
+  liveSaveReplay: boolean
+  permanentLive: boolean
+  latencyMode: LiveVideoLatencyModeType
+
+  commentsEnabled: boolean
+  downloadEnabled: boolean
+  waitTranscoding: boolean
+  state: VideoStateType
+
+  published: string
+  originallyPublishedAt: string
+  updated: string
+  uploadDate: string
+
+  mediaType: 'text/markdown'
+  content: string
+
+  support: string
+
+  icon: ActivityIconObject[]
+
+  url: ActivityUrlObject[]
+
+  likes: string
+  dislikes: string
+  shares: string
+  comments: string
+
+  attributedTo: ActivityPubAttributedTo[]
+
+  preview?: ActivityPubStoryboard[]
+
+  to?: string[]
+  cc?: string[]
+}
+
+export interface ActivityPubStoryboard {
+  type: 'Image'
+  rel: [ 'storyboard' ]
+  url: {
+    href: string
+    mediaType: string
+    width: number
+    height: number
+    tileWidth: number
+    tileHeight: number
+    tileDuration: string
+  }[]
+}
diff --git a/packages/models/src/activitypub/objects/watch-action-object.ts b/packages/models/src/activitypub/objects/watch-action-object.ts
new file mode 100644
index 000000000..ed336602f
--- /dev/null
+++ b/packages/models/src/activitypub/objects/watch-action-object.ts
@@ -0,0 +1,22 @@
+export interface WatchActionObject {
+  id: string
+  type: 'WatchAction'
+
+  startTime: string
+  endTime: string
+
+  location?: {
+    addressCountry: string
+  }
+
+  uuid: string
+  object: string
+  actionStatus: 'CompletedActionStatus'
+
+  duration: string
+
+  watchSections: {
+    startTimestamp: number
+    endTimestamp: number
+  }[]
+}
diff --git a/packages/models/src/activitypub/webfinger.ts b/packages/models/src/activitypub/webfinger.ts
new file mode 100644
index 000000000..b94baf996
--- /dev/null
+++ b/packages/models/src/activitypub/webfinger.ts
@@ -0,0 +1,9 @@
+export interface WebFingerData {
+  subject: string
+  aliases: string[]
+  links: {
+    rel: 'self'
+    type: 'application/ld+json; profile="https://www.w3.org/ns/activitystreams"'
+    href: string
+  }[]
+}