audiobookshelf/server/objects/Feed.js

247 lines
8.0 KiB
JavaScript

const FeedMeta = require('./FeedMeta')
const FeedEpisode = require('./FeedEpisode')
const RSS = require('../libs/rss')
class Feed {
constructor(feed) {
this.id = null
this.slug = null
this.userId = null
this.entityType = null
this.entityId = null
this.entityUpdatedAt = null
this.coverPath = null
this.serverAddress = null
this.feedUrl = null
this.meta = null
this.episodes = null
this.createdAt = null
this.updatedAt = null
// Cached xml
this.xml = null
if (feed) {
this.construct(feed)
}
}
construct(feed) {
this.id = feed.id
this.slug = feed.slug
this.userId = feed.userId
this.entityType = feed.entityType
this.entityId = feed.entityId
this.coverPath = feed.coverPath
this.serverAddress = feed.serverAddress
this.feedUrl = feed.feedUrl
this.meta = new FeedMeta(feed.meta)
this.episodes = feed.episodes.map(ep => new FeedEpisode(ep))
this.createdAt = feed.createdAt
this.updatedAt = feed.updatedAt
}
toJSON() {
return {
id: this.id,
slug: this.slug,
userId: this.userId,
entityType: this.entityType,
entityId: this.entityId,
coverPath: this.coverPath,
serverAddress: this.serverAddress,
feedUrl: this.feedUrl,
meta: this.meta.toJSON(),
episodes: this.episodes.map(ep => ep.toJSON()),
createdAt: this.createdAt,
updatedAt: this.updatedAt
}
}
toJSONMinified() {
return {
id: this.id,
entityType: this.entityType,
entityId: this.entityId,
feedUrl: this.feedUrl
}
}
getEpisodePath(id) {
var episode = this.episodes.find(ep => ep.id === id)
if (!episode) return null
return episode.fullPath
}
setFromItem(userId, slug, libraryItem, serverAddress) {
const media = libraryItem.media
const mediaMetadata = media.metadata
const isPodcast = libraryItem.mediaType === 'podcast'
const feedUrl = `${serverAddress}/feed/${slug}`
const author = isPodcast ? mediaMetadata.author : mediaMetadata.authorName
this.id = slug
this.slug = slug
this.userId = userId
this.entityType = 'item'
this.entityId = libraryItem.id
this.entityUpdatedAt = libraryItem.updatedAt
this.coverPath = media.coverPath || null
this.serverAddress = serverAddress
this.feedUrl = feedUrl
this.meta = new FeedMeta()
this.meta.title = mediaMetadata.title
this.meta.description = mediaMetadata.description
this.meta.author = author
this.meta.imageUrl = media.coverPath ? `${serverAddress}/feed/${slug}/cover` : `${serverAddress}/Logo.png`
this.meta.feedUrl = feedUrl
this.meta.link = `${serverAddress}/item/${libraryItem.id}`
this.meta.explicit = !!mediaMetadata.explicit
this.episodes = []
if (isPodcast) { // PODCAST EPISODES
media.episodes.forEach((episode) => {
var feedEpisode = new FeedEpisode()
feedEpisode.setFromPodcastEpisode(libraryItem, serverAddress, slug, episode, this.meta)
this.episodes.push(feedEpisode)
})
} else { // AUDIOBOOK EPISODES
media.tracks.forEach((audioTrack) => {
var feedEpisode = new FeedEpisode()
feedEpisode.setFromAudiobookTrack(libraryItem, serverAddress, slug, audioTrack, this.meta)
this.episodes.push(feedEpisode)
})
}
this.createdAt = Date.now()
this.updatedAt = Date.now()
}
updateFromItem(libraryItem) {
const media = libraryItem.media
const mediaMetadata = media.metadata
const isPodcast = libraryItem.mediaType === 'podcast'
const author = isPodcast ? mediaMetadata.author : mediaMetadata.authorName
this.entityUpdatedAt = libraryItem.updatedAt
this.coverPath = media.coverPath || null
this.meta.title = mediaMetadata.title
this.meta.description = mediaMetadata.description
this.meta.author = author
this.meta.imageUrl = media.coverPath ? `${this.serverAddress}/feed/${this.slug}/cover` : `${this.serverAddress}/Logo.png`
this.meta.explicit = !!mediaMetadata.explicit
this.episodes = []
if (isPodcast) { // PODCAST EPISODES
media.episodes.forEach((episode) => {
var feedEpisode = new FeedEpisode()
feedEpisode.setFromPodcastEpisode(libraryItem, this.serverAddress, this.slug, episode, this.meta)
this.episodes.push(feedEpisode)
})
} else { // AUDIOBOOK EPISODES
media.tracks.forEach((audioTrack) => {
var feedEpisode = new FeedEpisode()
feedEpisode.setFromAudiobookTrack(libraryItem, this.serverAddress, this.slug, audioTrack, this.meta)
this.episodes.push(feedEpisode)
})
}
this.updatedAt = Date.now()
this.xml = null
}
setFromCollection(userId, slug, collectionExpanded, serverAddress) {
const feedUrl = `${serverAddress}/feed/${slug}`
const itemsWithTracks = collectionExpanded.books.filter(libraryItem => libraryItem.media.tracks.length)
const firstItemWithCover = itemsWithTracks.find(item => item.media.coverPath)
this.id = slug
this.slug = slug
this.userId = userId
this.entityType = 'collection'
this.entityId = collectionExpanded.id
this.entityUpdatedAt = collectionExpanded.lastUpdate
this.coverPath = firstItemWithCover?.coverPath || null
this.serverAddress = serverAddress
this.feedUrl = feedUrl
this.meta = new FeedMeta()
this.meta.title = collectionExpanded.name
this.meta.description = collectionExpanded.description || ''
this.meta.author = this.getAuthorsStringFromLibraryItems(itemsWithTracks)
this.meta.imageUrl = this.coverPath ? `${serverAddress}/feed/${slug}/cover` : `${serverAddress}/Logo.png`
this.meta.feedUrl = feedUrl
this.meta.link = `${serverAddress}/collection/${collectionExpanded.id}`
this.meta.explicit = !!itemsWithTracks.some(li => li.media.metadata.explicit) // explicit if any item is explicit
this.episodes = []
itemsWithTracks.forEach((item, index) => {
item.media.tracks.forEach((audioTrack) => {
const feedEpisode = new FeedEpisode()
feedEpisode.setFromAudiobookTrack(item, serverAddress, slug, audioTrack, this.meta, index)
this.episodes.push(feedEpisode)
})
})
this.createdAt = Date.now()
this.updatedAt = Date.now()
}
updateFromCollection(collectionExpanded) {
const itemsWithTracks = collectionExpanded.books.filter(libraryItem => libraryItem.media.tracks.length)
const firstItemWithCover = itemsWithTracks.find(item => item.media.coverPath)
this.entityUpdatedAt = collectionExpanded.lastUpdate
this.coverPath = firstItemWithCover?.coverPath || null
this.meta.title = collectionExpanded.name
this.meta.description = collectionExpanded.description || ''
this.meta.author = this.getAuthorsStringFromLibraryItems(itemsWithTracks)
this.meta.imageUrl = this.coverPath ? `${this.serverAddress}/feed/${this.slug}/cover` : `${this.serverAddress}/Logo.png`
this.meta.explicit = !!itemsWithTracks.some(li => li.media.metadata.explicit) // explicit if any item is explicit
this.episodes = []
itemsWithTracks.forEach((item, index) => {
item.media.tracks.forEach((audioTrack) => {
const feedEpisode = new FeedEpisode()
feedEpisode.setFromAudiobookTrack(item, this.serverAddress, this.slug, audioTrack, this.meta, index)
this.episodes.push(feedEpisode)
})
})
this.updatedAt = Date.now()
this.xml = null
}
buildXml() {
if (this.xml) return this.xml
var rssfeed = new RSS(this.meta.getRSSData())
this.episodes.forEach((ep) => {
rssfeed.item(ep.getRSSData())
})
this.xml = rssfeed.xml()
return this.xml
}
getAuthorsStringFromLibraryItems(libraryItems) {
let itemAuthors = []
libraryItems.forEach((item) => itemAuthors.push(...item.media.metadata.authors.map(au => au.name)))
itemAuthors = [...new Set(itemAuthors)] // Filter out dupes
let author = itemAuthors.slice(0, 3).join(', ')
if (itemAuthors.length > 3) {
author += ' & more'
}
return author
}
}
module.exports = Feed