4 files changed, 298 insertions, 82 deletions

diff --git a/server/lib/activitypub/misc.ts b/server/lib/activitypub/misc.ts
new file mode 100644
index 000000000..05e77ebc3
--- /dev/null
+++ b/server/lib/activitypub/misc.ts
@@ -0,0 +1,77 @@
+import * as magnetUtil from 'magnet-uri'
+import * as Sequelize from 'sequelize'
+import { VideoTorrentObject } from '../../../shared'
+import { isVideoFileInfoHashValid } from '../../helpers/custom-validators/videos'
+import { database as db } from '../../initializers'
+import { VIDEO_MIMETYPE_EXT } from '../../initializers/constants'
+import { VideoChannelInstance } from '../../models/video/video-channel-interface'
+import { VideoFileAttributes } from '../../models/video/video-file-interface'
+import { VideoAttributes, VideoInstance } from '../../models/video/video-interface'
+
+async function videoActivityObjectToDBAttributes (videoChannel: VideoChannelInstance, videoObject: VideoTorrentObject, t: Sequelize.Transaction) {
+  const videoFromDatabase = await db.Video.loadByUUIDOrURL(videoObject.uuid, videoObject.id, t)
+  if (videoFromDatabase) throw new Error('Video with this UUID/Url already exists.')
+
+  const duration = videoObject.duration.replace(/[^\d]+/, '')
+  const videoData: VideoAttributes = {
+    name: videoObject.name,
+    uuid: videoObject.uuid,
+    url: videoObject.id,
+    category: parseInt(videoObject.category.identifier, 10),
+    licence: parseInt(videoObject.licence.identifier, 10),
+    language: parseInt(videoObject.language.identifier, 10),
+    nsfw: videoObject.nsfw,
+    description: videoObject.content,
+    channelId: videoChannel.id,
+    duration: parseInt(duration, 10),
+    createdAt: videoObject.published,
+    // FIXME: updatedAt does not seems to be considered by Sequelize
+    updatedAt: videoObject.updated,
+    views: videoObject.views,
+    likes: 0,
+    dislikes: 0,
+    // likes: videoToCreateData.likes,
+    // dislikes: videoToCreateData.dislikes,
+    remote: true,
+    privacy: 1
+    // privacy: videoToCreateData.privacy
+  }
+
+  return videoData
+}
+
+function videoFileActivityUrlToDBAttributes (videoCreated: VideoInstance, videoObject: VideoTorrentObject) {
+  const fileUrls = videoObject.url
+    .filter(u => Object.keys(VIDEO_MIMETYPE_EXT).indexOf(u.mimeType) !== -1)
+
+  const attributes: VideoFileAttributes[] = []
+  for (const url of fileUrls) {
+    // Fetch associated magnet uri
+    const magnet = videoObject.url
+      .find(u => {
+        return u.mimeType === 'application/x-bittorrent;x-scheme-handler/magnet' && u.width === url.width
+      })
+    if (!magnet) throw new Error('Cannot find associated magnet uri for file ' + url.url)
+
+    const parsed = magnetUtil.decode(magnet.url)
+    if (!parsed || isVideoFileInfoHashValid(parsed.infoHash) === false) throw new Error('Cannot parse magnet URI ' + magnet.url)
+
+    const attribute = {
+      extname: VIDEO_MIMETYPE_EXT[url.mimeType],
+      infoHash: parsed.infoHash,
+      resolution: url.width,
+      size: url.size,
+      videoId: videoCreated.id
+    }
+    attributes.push(attribute)
+  }
+
+  return attributes
+}
+
+// ---------------------------------------------------------------------------
+
+export {
+  videoFileActivityUrlToDBAttributes,
+  videoActivityObjectToDBAttributes
+}
diff --git a/server/lib/activitypub/process-add.ts b/server/lib/activitypub/process-add.ts
new file mode 100644
index 000000000..40541aca3
--- /dev/null
+++ b/server/lib/activitypub/process-add.ts
@@ -0,0 +1,72 @@
+import { VideoTorrentObject } from '../../../shared'
+import { ActivityAdd } from '../../../shared/models/activitypub/activity'
+import { generateThumbnailFromUrl, logger, retryTransactionWrapper, getOrCreateAccount } from '../../helpers'
+import { database as db } from '../../initializers'
+import { AccountInstance } from '../../models/account/account-interface'
+import { videoActivityObjectToDBAttributes, videoFileActivityUrlToDBAttributes } from './misc'
+import Bluebird = require('bluebird')
+
+async function processAddActivity (activity: ActivityAdd) {
+  const activityObject = activity.object
+  const activityType = activityObject.type
+  const account = await getOrCreateAccount(activity.actor)
+
+  if (activityType === 'Video') {
+    return processAddVideo(account, activity.id, activityObject as VideoTorrentObject)
+  }
+
+  logger.warn('Unknown activity object type %s when creating activity.', activityType, { activity: activity.id })
+  return Promise.resolve(undefined)
+}
+
+// ---------------------------------------------------------------------------
+
+export {
+  processAddActivity
+}
+
+// ---------------------------------------------------------------------------
+
+function processAddVideo (account: AccountInstance, videoChannelUrl: string, video: VideoTorrentObject) {
+  const options = {
+    arguments: [ account, videoChannelUrl ,video ],
+    errorMessage: 'Cannot insert the remote video with many retries.'
+  }
+
+  return retryTransactionWrapper(addRemoteVideo, options)
+}
+
+async function addRemoteVideo (account: AccountInstance, videoChannelUrl: string, videoToCreateData: VideoTorrentObject) {
+  logger.debug('Adding remote video %s.', videoToCreateData.url)
+
+  await db.sequelize.transaction(async t => {
+    const sequelizeOptions = {
+      transaction: t
+    }
+
+    const videoChannel = await db.VideoChannel.loadByUrl(videoChannelUrl, t)
+    if (!videoChannel) throw new Error('Video channel not found.')
+
+    if (videoChannel.Account.id !== account.id) throw new Error('Video channel is not owned by this account.')
+
+    const videoData = await videoActivityObjectToDBAttributes(videoChannel, videoToCreateData, t)
+    const video = db.Video.build(videoData)
+
+    // Don't block on request
+    generateThumbnailFromUrl(video, videoToCreateData.icon)
+      .catch(err => logger.warning('Cannot generate thumbnail of %s.', videoToCreateData.id, err))
+
+    const videoCreated = await video.save(sequelizeOptions)
+
+    const videoFileAttributes = await videoFileActivityUrlToDBAttributes(videoCreated, videoToCreateData)
+
+    const tasks: Bluebird<any>[] = videoFileAttributes.map(f => db.VideoFile.create(f))
+    await Promise.all(tasks)
+
+    const tags = videoToCreateData.tag.map(t => t.name)
+    const tagInstances = await db.Tag.findOrCreateTags(tags, t)
+    await videoCreated.setTags(tagInstances, sequelizeOptions)
+  })
+
+  logger.info('Remote video with uuid %s inserted.', videoToCreateData.uuid)
+}
diff --git a/server/lib/activitypub/process-create.ts b/server/lib/activitypub/process-create.ts
index 114ff1848..471674ead 100644
--- a/server/lib/activitypub/process-create.ts
+++ b/server/lib/activitypub/process-create.ts
@@ -1,23 +1,23 @@
-import {
-  ActivityCreate,
-  VideoTorrentObject,
-  VideoChannelObject
-} from '../../../shared'
+import { ActivityCreate, VideoChannelObject, VideoTorrentObject } from '../../../shared'
+import { ActivityAdd } from '../../../shared/models/activitypub/activity'
+import { generateThumbnailFromUrl, logger, retryTransactionWrapper } from '../../helpers'
 import { database as db } from '../../initializers'
-import { logger, retryTransactionWrapper } from '../../helpers'
+import { videoActivityObjectToDBAttributes, videoFileActivityUrlToDBAttributes } from './misc'
+import Bluebird = require('bluebird')
+import { AccountInstance } from '../../models/account/account-interface'
+import { getActivityPubUrl, getOrCreateAccount } from '../../helpers/activitypub'
 
-function processCreateActivity (activity: ActivityCreate) {
+async function processCreateActivity (activity: ActivityCreate) {
   const activityObject = activity.object
   const activityType = activityObject.type
+  const account = await getOrCreateAccount(activity.actor)
 
-  if (activityType === 'Video') {
-    return processCreateVideo(activityObject as VideoTorrentObject)
-  } else if (activityType === 'VideoChannel') {
-    return processCreateVideoChannel(activityObject as VideoChannelObject)
+  if (activityType === 'VideoChannel') {
+    return processCreateVideoChannel(account, activityObject as VideoChannelObject)
   }
 
   logger.warn('Unknown activity object type %s when creating activity.', activityType, { activity: activity.id })
-  return Promise.resolve()
+  return Promise.resolve(undefined)
 }
 
 // ---------------------------------------------------------------------------
@@ -28,77 +28,37 @@ export {
 
 // ---------------------------------------------------------------------------
 
-function processCreateVideo (video: VideoTorrentObject) {
+function processCreateVideoChannel (account: AccountInstance, videoChannelToCreateData: VideoChannelObject) {
   const options = {
-    arguments: [ video ],
-    errorMessage: 'Cannot insert the remote video with many retries.'
+    arguments: [ account, videoChannelToCreateData ],
+    errorMessage: 'Cannot insert the remote video channel with many retries.'
   }
 
-  return retryTransactionWrapper(addRemoteVideo, options)
+  return retryTransactionWrapper(addRemoteVideoChannel, options)
 }
 
-async function addRemoteVideo (videoToCreateData: VideoTorrentObject) {
-  logger.debug('Adding remote video %s.', videoToCreateData.url)
+async function addRemoteVideoChannel (account: AccountInstance, videoChannelToCreateData: VideoChannelObject) {
+  logger.debug('Adding remote video channel "%s".', videoChannelToCreateData.uuid)
 
   await db.sequelize.transaction(async t => {
-    const sequelizeOptions = {
-      transaction: t
-    }
-
-    const videoFromDatabase = await db.Video.loadByUUID(videoToCreateData.uuid)
-    if (videoFromDatabase) throw new Error('UUID already exists.')
-
-    const videoChannel = await db.VideoChannel.loadByHostAndUUID(fromPod.host, videoToCreateData.channelUUID, t)
-    if (!videoChannel) throw new Error('Video channel ' + videoToCreateData.channelUUID + ' not found.')
-
-    const tags = videoToCreateData.tags
-    const tagInstances = await db.Tag.findOrCreateTags(tags, t)
-
-    const videoData = {
-      name: videoToCreateData.name,
-      uuid: videoToCreateData.uuid,
-      category: videoToCreateData.category,
-      licence: videoToCreateData.licence,
-      language: videoToCreateData.language,
-      nsfw: videoToCreateData.nsfw,
-      description: videoToCreateData.truncatedDescription,
-      channelId: videoChannel.id,
-      duration: videoToCreateData.duration,
-      createdAt: videoToCreateData.createdAt,
-      // FIXME: updatedAt does not seems to be considered by Sequelize
-      updatedAt: videoToCreateData.updatedAt,
-      views: videoToCreateData.views,
-      likes: videoToCreateData.likes,
-      dislikes: videoToCreateData.dislikes,
+    let videoChannel = await db.VideoChannel.loadByUUIDOrUrl(videoChannelToCreateData.uuid, videoChannelToCreateData.id, t)
+    if (videoChannel) throw new Error('Video channel with this URL/UUID already exists.')
+
+    const videoChannelData = {
+      name: videoChannelToCreateData.name,
+      description: videoChannelToCreateData.content,
+      uuid: videoChannelToCreateData.uuid,
+      createdAt: videoChannelToCreateData.published,
+      updatedAt: videoChannelToCreateData.updated,
       remote: true,
-      privacy: videoToCreateData.privacy
-    }
-
-    const video = db.Video.build(videoData)
-    await db.Video.generateThumbnailFromData(video, videoToCreateData.thumbnailData)
-    const videoCreated = await video.save(sequelizeOptions)
-
-    const tasks = []
-    for (const fileData of videoToCreateData.files) {
-      const videoFileInstance = db.VideoFile.build({
-        extname: fileData.extname,
-        infoHash: fileData.infoHash,
-        resolution: fileData.resolution,
-        size: fileData.size,
-        videoId: videoCreated.id
-      })
-
-      tasks.push(videoFileInstance.save(sequelizeOptions))
+      accountId: account.id
     }
 
-    await Promise.all(tasks)
+    videoChannel = db.VideoChannel.build(videoChannelData)
+    videoChannel.url = getActivityPubUrl('videoChannel', videoChannel.uuid)
 
-    await videoCreated.setTags(tagInstances, sequelizeOptions)
+    await videoChannel.save({ transaction: t })
   })
 
-  logger.info('Remote video with uuid %s inserted.', videoToCreateData.uuid)
-}
-
-function processCreateVideoChannel (videoChannel: VideoChannelObject) {
-
+  logger.info('Remote video channel with uuid %s inserted.', videoChannelToCreateData.uuid)
 }
diff --git a/server/lib/activitypub/process-update.ts b/server/lib/activitypub/process-update.ts
index 187c7be7c..cd8a4b8e2 100644
--- a/server/lib/activitypub/process-update.ts
+++ b/server/lib/activitypub/process-update.ts
@@ -1,15 +1,25 @@
-import {
-  ActivityCreate,
-  VideoTorrentObject,
-  VideoChannelObject
-} from '../../../shared'
+import { VideoChannelObject, VideoTorrentObject } from '../../../shared'
+import { ActivityUpdate } from '../../../shared/models/activitypub/activity'
+import { getOrCreateAccount } from '../../helpers/activitypub'
+import { retryTransactionWrapper } from '../../helpers/database-utils'
+import { logger } from '../../helpers/logger'
+import { resetSequelizeInstance } from '../../helpers/utils'
+import { database as db } from '../../initializers'
+import { AccountInstance } from '../../models/account/account-interface'
+import { VideoInstance } from '../../models/video/video-interface'
+import { videoActivityObjectToDBAttributes, videoFileActivityUrlToDBAttributes } from './misc'
+import Bluebird = require('bluebird')
+
+async function processUpdateActivity (activity: ActivityUpdate) {
+  const account = await getOrCreateAccount(activity.actor)
 
-function processUpdateActivity (activity: ActivityCreate) {
   if (activity.object.type === 'Video') {
-    return processUpdateVideo(activity.object)
+    return processUpdateVideo(account, activity.object)
   } else if (activity.object.type === 'VideoChannel') {
-    return processUpdateVideoChannel(activity.object)
+    return processUpdateVideoChannel(account, activity.object)
   }
+
+  return undefined
 }
 
 // ---------------------------------------------------------------------------
@@ -20,10 +30,107 @@ export {
 
 // ---------------------------------------------------------------------------
 
-function processUpdateVideo (video: VideoTorrentObject) {
+function processUpdateVideo (account: AccountInstance, video: VideoTorrentObject) {
+  const options = {
+    arguments: [ account, video ],
+    errorMessage: 'Cannot update the remote video with many retries'
+  }
 
+  return retryTransactionWrapper(updateRemoteVideo, options)
 }
 
-function processUpdateVideoChannel (videoChannel: VideoChannelObject) {
+async function updateRemoteVideo (account: AccountInstance, videoAttributesToUpdate: VideoTorrentObject) {
+  logger.debug('Updating remote video "%s".', videoAttributesToUpdate.uuid)
+  let videoInstance: VideoInstance
+  let videoFieldsSave: object
+
+  try {
+    await db.sequelize.transaction(async t => {
+      const sequelizeOptions = {
+        transaction: t
+      }
+
+      const videoInstance = await db.Video.loadByUrl(videoAttributesToUpdate.id, t)
+      if (!videoInstance) throw new Error('Video ' + videoAttributesToUpdate.id + ' not found.')
+
+      if (videoInstance.VideoChannel.Account.id !== account.id) {
+        throw new Error('Account ' + account.url + ' does not own video channel ' + videoInstance.VideoChannel.url)
+      }
+
+      const videoData = await videoActivityObjectToDBAttributes(videoInstance.VideoChannel, videoAttributesToUpdate, t)
+      videoInstance.set('name', videoData.name)
+      videoInstance.set('category', videoData.category)
+      videoInstance.set('licence', videoData.licence)
+      videoInstance.set('language', videoData.language)
+      videoInstance.set('nsfw', videoData.nsfw)
+      videoInstance.set('description', videoData.description)
+      videoInstance.set('duration', videoData.duration)
+      videoInstance.set('createdAt', videoData.createdAt)
+      videoInstance.set('updatedAt', videoData.updatedAt)
+      videoInstance.set('views', videoData.views)
+      // videoInstance.set('likes', videoData.likes)
+      // videoInstance.set('dislikes', videoData.dislikes)
+      // videoInstance.set('privacy', videoData.privacy)
+
+      await videoInstance.save(sequelizeOptions)
+
+      // Remove old video files
+      const videoFileDestroyTasks: Bluebird<void>[] = []
+      for (const videoFile of videoInstance.VideoFiles) {
+        videoFileDestroyTasks.push(videoFile.destroy(sequelizeOptions))
+      }
+      await Promise.all(videoFileDestroyTasks)
+
+      const videoFileAttributes = await videoFileActivityUrlToDBAttributes(videoInstance, videoAttributesToUpdate)
+      const tasks: Bluebird<any>[] = videoFileAttributes.map(f => db.VideoFile.create(f))
+      await Promise.all(tasks)
+
+      const tags = videoAttributesToUpdate.tag.map(t => t.name)
+      const tagInstances = await db.Tag.findOrCreateTags(tags, t)
+      await videoInstance.setTags(tagInstances, sequelizeOptions)
+    })
+
+    logger.info('Remote video with uuid %s updated', videoAttributesToUpdate.uuid)
+  } catch (err) {
+    if (videoInstance !== undefined && videoFieldsSave !== undefined) {
+      resetSequelizeInstance(videoInstance, videoFieldsSave)
+    }
+
+    // This is just a debug because we will retry the insert
+    logger.debug('Cannot update the remote video.', err)
+    throw err
+  }
+}
+
+async function processUpdateVideoChannel (account: AccountInstance, videoChannel: VideoChannelObject) {
+  const options = {
+    arguments: [ account, videoChannel ],
+    errorMessage: 'Cannot update the remote video channel with many retries.'
+  }
+
+  await retryTransactionWrapper(updateRemoteVideoChannel, options)
+}
+
+async function updateRemoteVideoChannel (account: AccountInstance, videoChannel: VideoChannelObject) {
+  logger.debug('Updating remote video channel "%s".', videoChannel.uuid)
+
+  await db.sequelize.transaction(async t => {
+    const sequelizeOptions = { transaction: t }
+
+    const videoChannelInstance = await db.VideoChannel.loadByUrl(videoChannel.id)
+    if (!videoChannelInstance) throw new Error('Video ' + videoChannel.id + ' not found.')
+
+    if (videoChannelInstance.Account.id !== account.id) {
+      throw new Error('Account ' + account.id + ' does not own video channel ' + videoChannelInstance.url)
+    }
+
+    videoChannelInstance.set('name', videoChannel.name)
+    videoChannelInstance.set('description', videoChannel.content)
+    videoChannelInstance.set('createdAt', videoChannel.published)
+    videoChannelInstance.set('updatedAt', videoChannel.updated)
+
+    await videoChannelInstance.save(sequelizeOptions)
+  })
 
+  logger.info('Remote video channel with uuid %s updated', videoChannel.uuid)
 }