audiobookshelf/server/objects/Feed.js

428 lines
17 KiB
JavaScript

const Path = require('path')
const uuidv4 = require('uuid').v4
const FeedMeta = require('./FeedMeta')
const FeedEpisode = require('./FeedEpisode')
const date = require('../libs/dateAndTime')
const RSS = require('../libs/rss')
const { createNewSortInstance } = require('../libs/fastSort')
const naturalSort = createNewSortInstance({
comparer: new Intl.Collator(undefined, { numeric: true, sensitivity: 'base' }).compare
})
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.entityUpdatedAt = feed.entityUpdatedAt
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,
meta: this.meta.toJSONMinified()
}
}
getEpisodePath(id) {
var episode = this.episodes.find((ep) => ep.id === id)
if (!episode) return null
return episode.fullPath
}
/**
* If chapters for an audiobook match the audio tracks then use chapter titles instead of audio file names
*
* @param {import('../objects/LibraryItem')} libraryItem
* @returns {boolean}
*/
checkUseChapterTitlesForEpisodes(libraryItem) {
const tracks = libraryItem.media.tracks
const chapters = libraryItem.media.chapters
if (tracks.length !== chapters.length) return false
for (let i = 0; i < tracks.length; i++) {
if (Math.abs(chapters[i].start - tracks[i].startOffset) >= 1) {
return false
}
}
return true
}
setFromItem(userId, slug, libraryItem, serverAddress, preventIndexing = true, ownerName = null, ownerEmail = null) {
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 = uuidv4()
this.slug = slug
this.userId = userId
this.entityType = 'libraryItem'
this.entityId = libraryItem.id
this.entityUpdatedAt = libraryItem.updatedAt
this.coverPath = media.coverPath || null
this.serverAddress = serverAddress
this.feedUrl = feedUrl
const coverFileExtension = this.coverPath ? Path.extname(media.coverPath) : null
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${coverFileExtension}` : `${serverAddress}/Logo.png`
this.meta.feedUrl = feedUrl
this.meta.link = `${serverAddress}/item/${libraryItem.id}`
this.meta.explicit = !!mediaMetadata.explicit
this.meta.type = mediaMetadata.type
this.meta.language = mediaMetadata.language
this.meta.preventIndexing = preventIndexing
this.meta.ownerName = ownerName
this.meta.ownerEmail = ownerEmail
this.episodes = []
if (isPodcast) {
// PODCAST EPISODES
media.episodes.forEach((episode) => {
if (episode.updatedAt > this.entityUpdatedAt) this.entityUpdatedAt = episode.updatedAt
const feedEpisode = new FeedEpisode()
feedEpisode.setFromPodcastEpisode(libraryItem, serverAddress, slug, episode, this.meta)
this.episodes.push(feedEpisode)
})
} else {
// AUDIOBOOK EPISODES
const useChapterTitles = this.checkUseChapterTitlesForEpisodes(libraryItem)
media.tracks.forEach((audioTrack) => {
const feedEpisode = new FeedEpisode()
feedEpisode.setFromAudiobookTrack(libraryItem, serverAddress, slug, audioTrack, this.meta, useChapterTitles)
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
const coverFileExtension = this.coverPath ? Path.extname(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${coverFileExtension}` : `${this.serverAddress}/Logo.png`
this.meta.explicit = !!mediaMetadata.explicit
this.meta.type = mediaMetadata.type
this.meta.language = mediaMetadata.language
this.episodes = []
if (isPodcast) {
// PODCAST EPISODES
media.episodes.forEach((episode) => {
if (episode.updatedAt > this.entityUpdatedAt) this.entityUpdatedAt = episode.updatedAt
const feedEpisode = new FeedEpisode()
feedEpisode.setFromPodcastEpisode(libraryItem, this.serverAddress, this.slug, episode, this.meta)
this.episodes.push(feedEpisode)
})
} else {
// AUDIOBOOK EPISODES
const useChapterTitles = this.checkUseChapterTitlesForEpisodes(libraryItem)
media.tracks.forEach((audioTrack) => {
const feedEpisode = new FeedEpisode()
feedEpisode.setFromAudiobookTrack(libraryItem, this.serverAddress, this.slug, audioTrack, this.meta, useChapterTitles)
this.episodes.push(feedEpisode)
})
}
this.updatedAt = Date.now()
this.xml = null
}
setFromCollection(userId, slug, collectionExpanded, serverAddress, preventIndexing = true, ownerName = null, ownerEmail = null) {
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 = uuidv4()
this.slug = slug
this.userId = userId
this.entityType = 'collection'
this.entityId = collectionExpanded.id
this.entityUpdatedAt = collectionExpanded.lastUpdate // This will be set to the most recently updated library item
this.coverPath = firstItemWithCover?.media.coverPath || null
this.serverAddress = serverAddress
this.feedUrl = feedUrl
const coverFileExtension = this.coverPath ? Path.extname(this.coverPath) : null
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${coverFileExtension}` : `${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.meta.preventIndexing = preventIndexing
this.meta.ownerName = ownerName
this.meta.ownerEmail = ownerEmail
this.episodes = []
// Used for calculating pubdate
const earliestItemAddedAt = itemsWithTracks.reduce((earliest, item) => (item.addedAt < earliest ? item.addedAt : earliest), itemsWithTracks[0].addedAt)
itemsWithTracks.forEach((item, index) => {
if (item.updatedAt > this.entityUpdatedAt) this.entityUpdatedAt = item.updatedAt
const useChapterTitles = this.checkUseChapterTitlesForEpisodes(item)
item.media.tracks.forEach((audioTrack) => {
const feedEpisode = new FeedEpisode()
// Offset pubdate to ensure correct order
let trackTimeOffset = isNaN(audioTrack.index) ? 0 : Number(audioTrack.index) * 1000 // Offset track
trackTimeOffset += index * 1000 // Offset item
const episodePubDateOverride = date.format(new Date(earliestItemAddedAt + trackTimeOffset), 'ddd, DD MMM YYYY HH:mm:ss [GMT]')
feedEpisode.setFromAudiobookTrack(item, serverAddress, slug, audioTrack, this.meta, useChapterTitles, episodePubDateOverride)
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?.media.coverPath || null
const coverFileExtension = this.coverPath ? Path.extname(this.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${coverFileExtension}` : `${this.serverAddress}/Logo.png`
this.meta.explicit = !!itemsWithTracks.some((li) => li.media.metadata.explicit) // explicit if any item is explicit
this.episodes = []
// Used for calculating pubdate
const earliestItemAddedAt = itemsWithTracks.reduce((earliest, item) => (item.addedAt < earliest ? item.addedAt : earliest), itemsWithTracks[0].addedAt)
itemsWithTracks.forEach((item, index) => {
if (item.updatedAt > this.entityUpdatedAt) this.entityUpdatedAt = item.updatedAt
const useChapterTitles = this.checkUseChapterTitlesForEpisodes(item)
item.media.tracks.forEach((audioTrack) => {
const feedEpisode = new FeedEpisode()
// Offset pubdate to ensure correct order
let trackTimeOffset = isNaN(audioTrack.index) ? 0 : Number(audioTrack.index) * 1000 // Offset track
trackTimeOffset += index * 1000 // Offset item
const episodePubDateOverride = date.format(new Date(earliestItemAddedAt + trackTimeOffset), 'ddd, DD MMM YYYY HH:mm:ss [GMT]')
feedEpisode.setFromAudiobookTrack(item, this.serverAddress, this.slug, audioTrack, this.meta, useChapterTitles, episodePubDateOverride)
this.episodes.push(feedEpisode)
})
})
this.updatedAt = Date.now()
this.xml = null
}
setFromSeries(userId, slug, seriesExpanded, serverAddress, preventIndexing = true, ownerName = null, ownerEmail = null) {
const feedUrl = `${serverAddress}/feed/${slug}`
let itemsWithTracks = seriesExpanded.books.filter((libraryItem) => libraryItem.media.tracks.length)
// Sort series items by series sequence
itemsWithTracks = naturalSort(itemsWithTracks).asc((li) => li.media.metadata.getSeriesSequence(seriesExpanded.id))
const libraryId = itemsWithTracks[0].libraryId
const firstItemWithCover = itemsWithTracks.find((li) => li.media.coverPath)
this.id = uuidv4()
this.slug = slug
this.userId = userId
this.entityType = 'series'
this.entityId = seriesExpanded.id
this.entityUpdatedAt = seriesExpanded.updatedAt // This will be set to the most recently updated library item
this.coverPath = firstItemWithCover?.media.coverPath || null
this.serverAddress = serverAddress
this.feedUrl = feedUrl
const coverFileExtension = this.coverPath ? Path.extname(this.coverPath) : null
this.meta = new FeedMeta()
this.meta.title = seriesExpanded.name
this.meta.description = seriesExpanded.description || ''
this.meta.author = this.getAuthorsStringFromLibraryItems(itemsWithTracks)
this.meta.imageUrl = this.coverPath ? `${serverAddress}/feed/${slug}/cover${coverFileExtension}` : `${serverAddress}/Logo.png`
this.meta.feedUrl = feedUrl
this.meta.link = `${serverAddress}/library/${libraryId}/series/${seriesExpanded.id}`
this.meta.explicit = !!itemsWithTracks.some((li) => li.media.metadata.explicit) // explicit if any item is explicit
this.meta.preventIndexing = preventIndexing
this.meta.ownerName = ownerName
this.meta.ownerEmail = ownerEmail
this.episodes = []
// Used for calculating pubdate
const earliestItemAddedAt = itemsWithTracks.reduce((earliest, item) => (item.addedAt < earliest ? item.addedAt : earliest), itemsWithTracks[0].addedAt)
itemsWithTracks.forEach((item, index) => {
if (item.updatedAt > this.entityUpdatedAt) this.entityUpdatedAt = item.updatedAt
const useChapterTitles = this.checkUseChapterTitlesForEpisodes(item)
item.media.tracks.forEach((audioTrack) => {
const feedEpisode = new FeedEpisode()
// Offset pubdate to ensure correct order
let trackTimeOffset = isNaN(audioTrack.index) ? 0 : Number(audioTrack.index) * 1000 // Offset track
trackTimeOffset += index * 1000 // Offset item
const episodePubDateOverride = date.format(new Date(earliestItemAddedAt + trackTimeOffset), 'ddd, DD MMM YYYY HH:mm:ss [GMT]')
feedEpisode.setFromAudiobookTrack(item, serverAddress, slug, audioTrack, this.meta, useChapterTitles, episodePubDateOverride)
this.episodes.push(feedEpisode)
})
})
this.createdAt = Date.now()
this.updatedAt = Date.now()
}
updateFromSeries(seriesExpanded) {
let itemsWithTracks = seriesExpanded.books.filter((libraryItem) => libraryItem.media.tracks.length)
// Sort series items by series sequence
itemsWithTracks = naturalSort(itemsWithTracks).asc((li) => li.media.metadata.getSeriesSequence(seriesExpanded.id))
const firstItemWithCover = itemsWithTracks.find((item) => item.media.coverPath)
this.entityUpdatedAt = seriesExpanded.updatedAt
this.coverPath = firstItemWithCover?.media.coverPath || null
const coverFileExtension = this.coverPath ? Path.extname(this.coverPath) : null
this.meta.title = seriesExpanded.name
this.meta.description = seriesExpanded.description || ''
this.meta.author = this.getAuthorsStringFromLibraryItems(itemsWithTracks)
this.meta.imageUrl = this.coverPath ? `${this.serverAddress}/feed/${this.slug}/cover${coverFileExtension}` : `${this.serverAddress}/Logo.png`
this.meta.explicit = !!itemsWithTracks.some((li) => li.media.metadata.explicit) // explicit if any item is explicit
this.episodes = []
// Used for calculating pubdate
const earliestItemAddedAt = itemsWithTracks.reduce((earliest, item) => (item.addedAt < earliest ? item.addedAt : earliest), itemsWithTracks[0].addedAt)
itemsWithTracks.forEach((item, index) => {
if (item.updatedAt > this.entityUpdatedAt) this.entityUpdatedAt = item.updatedAt
const useChapterTitles = this.checkUseChapterTitlesForEpisodes(item)
item.media.tracks.forEach((audioTrack) => {
const feedEpisode = new FeedEpisode()
// Offset pubdate to ensure correct order
let trackTimeOffset = isNaN(audioTrack.index) ? 0 : Number(audioTrack.index) * 1000 // Offset track
trackTimeOffset += index * 1000 // Offset item
const episodePubDateOverride = date.format(new Date(earliestItemAddedAt + trackTimeOffset), 'ddd, DD MMM YYYY HH:mm:ss [GMT]')
feedEpisode.setFromAudiobookTrack(item, this.serverAddress, this.slug, audioTrack, this.meta, useChapterTitles, episodePubDateOverride)
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