yattee/Model/Applications/PipedAPI.swift

701 lines
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Swift
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import AVFoundation
import Foundation
import Siesta
import SwiftyJSON
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final class PipedAPI: Service, ObservableObject, VideosAPI {
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static var disallowedVideoCodecs = ["av01"]
static var authorizedEndpoints = ["subscriptions", "subscribe", "unsubscribe", "user/playlists"]
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@Published var account: Account!
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static func withAnonymousAccountForInstanceURL(_ url: URL) -> PipedAPI {
.init(account: Instance(app: .piped, apiURLString: url.absoluteString).anonymousAccount)
}
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init(account: Account? = nil) {
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super.init()
guard account != nil else {
return
}
setAccount(account!)
}
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func setAccount(_ account: Account) {
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self.account = account
configure()
}
func configure() {
invalidateConfiguration()
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configure {
$0.pipeline[.parsing].add(SwiftyJSONTransformer, contentTypes: ["*/json"])
}
configure(whenURLMatches: { url in self.needsAuthorization(url) }) {
$0.headers["Authorization"] = self.account.token
}
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configureTransformer(pathPattern("channel/*")) { (content: Entity<JSON>) -> Channel? in
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self.extractChannel(from: content.json)
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}
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configureTransformer(pathPattern("channels/tabs*")) { (content: Entity<JSON>) -> [ContentItem] in
(content.json.dictionaryValue["content"]?.arrayValue ?? []).compactMap { self.extractContentItem(from: $0) }
}
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configureTransformer(pathPattern("c/*")) { (content: Entity<JSON>) -> Channel? in
self.extractChannel(from: content.json)
}
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configureTransformer(pathPattern("user/*")) { (content: Entity<JSON>) -> Channel? in
self.extractChannel(from: content.json)
}
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configureTransformer(pathPattern("playlists/*")) { (content: Entity<JSON>) -> ChannelPlaylist? in
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self.extractChannelPlaylist(from: content.json)
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}
configureTransformer(pathPattern("user/playlists/create")) { (_: Entity<JSON>) in }
configureTransformer(pathPattern("user/playlists/delete")) { (_: Entity<JSON>) in }
configureTransformer(pathPattern("user/playlists/add")) { (_: Entity<JSON>) in }
configureTransformer(pathPattern("user/playlists/remove")) { (_: Entity<JSON>) in }
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configureTransformer(pathPattern("streams/*")) { (content: Entity<JSON>) -> Video? in
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self.extractVideo(from: content.json)
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}
configureTransformer(pathPattern("trending")) { (content: Entity<JSON>) -> [Video] in
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self.extractVideos(from: content.json)
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}
configureTransformer(pathPattern("search")) { (content: Entity<JSON>) -> SearchPage in
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let nextPage = content.json.dictionaryValue["nextpage"]?.string
return SearchPage(
results: self.extractContentItems(from: content.json.dictionaryValue["items"]!),
nextPage: nextPage,
last: nextPage == "null"
)
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}
configureTransformer(pathPattern("suggestions")) { (content: Entity<JSON>) -> [String] in
content.json.arrayValue.map(String.init)
}
configureTransformer(pathPattern("subscriptions")) { (content: Entity<JSON>) -> [Channel] in
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content.json.arrayValue.compactMap { self.extractChannel(from: $0) }
}
configureTransformer(pathPattern("feed")) { (content: Entity<JSON>) -> [Video] in
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content.json.arrayValue.compactMap { self.extractVideo(from: $0) }
}
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configureTransformer(pathPattern("comments/*")) { (content: Entity<JSON>) -> CommentsPage in
let details = content.json.dictionaryValue
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let comments = details["comments"]?.arrayValue.compactMap { self.extractComment(from: $0) } ?? []
let nextPage = details["nextpage"]?.string
let disabled = details["disabled"]?.bool ?? false
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return CommentsPage(comments: comments, nextPage: nextPage, disabled: disabled)
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}
configureTransformer(pathPattern("user/playlists")) { (content: Entity<JSON>) -> [Playlist] in
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content.json.arrayValue.compactMap { self.extractUserPlaylist(from: $0) }
}
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if account.token.isNil || account.token!.isEmpty {
updateToken()
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} else {
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FeedModel.shared.onAccountChange()
SubscribedChannelsModel.shared.onAccountChange()
PlaylistsModel.shared.onAccountChange()
}
}
func needsAuthorization(_ url: URL) -> Bool {
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Self.authorizedEndpoints.contains { url.absoluteString.contains($0) }
}
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func updateToken() {
let (username, password) = AccountsModel.getCredentials(account)
guard !account.anonymous,
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let username,
let password
else {
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return
}
login.request(
.post,
json: ["username": username, "password": password]
)
.onSuccess { response in
let token = response.json.dictionaryValue["token"]?.string ?? ""
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if let error = response.json.dictionaryValue["error"]?.string {
NavigationModel.shared.presentAlert(
title: "Account Error",
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message: error
)
} else if !token.isEmpty {
AccountsModel.setToken(self.account, token)
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self.objectWillChange.send()
} else {
NavigationModel.shared.presentAlert(
title: "Account Error",
message: "Could not update your token."
)
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}
self.configure()
}
}
var login: Resource {
resource(baseURL: account.url, path: "login")
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}
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func channel(_ id: String, contentType: Channel.ContentType, data: String?) -> Resource {
if contentType == .videos {
return resource(baseURL: account.url, path: "channel/\(id)")
}
return resource(baseURL: account.url, path: "channels/tabs")
.withParam("data", data)
}
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func channelByName(_ name: String) -> Resource? {
resource(baseURL: account.url, path: "c/\(name)")
}
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func channelByUsername(_ username: String) -> Resource? {
resource(baseURL: account.url, path: "user/\(username)")
}
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func channelVideos(_ id: String) -> Resource {
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channel(id, contentType: .videos)
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}
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func channelPlaylist(_ id: String) -> Resource? {
resource(baseURL: account.url, path: "playlists/\(id)")
}
func trending(country: Country, category _: TrendingCategory? = nil) -> Resource {
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resource(baseURL: account.instance.apiURL, path: "trending")
.withParam("region", country.rawValue)
}
func search(_ query: SearchQuery, page: String?) -> Resource {
let path = page.isNil ? "search" : "nextpage/search"
let resource = resource(baseURL: account.instance.apiURL, path: path)
.withParam("q", query.query)
.withParam("filter", "all")
if page.isNil {
return resource
}
return resource.withParam("nextpage", page)
}
func searchSuggestions(query: String) -> Resource {
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resource(baseURL: account.instance.apiURL, path: "suggestions")
.withParam("query", query.lowercased())
}
func video(_ id: Video.ID) -> Resource {
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resource(baseURL: account.instance.apiURL, path: "streams/\(id)")
}
var signedIn: Bool {
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guard let account else {
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return false
}
return !account.anonymous && !(account.token?.isEmpty ?? true)
}
var subscriptions: Resource? {
resource(baseURL: account.instance.apiURL, path: "subscriptions")
}
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func feed(_: Int?) -> Resource? {
resource(baseURL: account.instance.apiURL, path: "feed")
.withParam("authToken", account.token)
}
var home: Resource? { nil }
var popular: Resource? { nil }
var playlists: Resource? {
resource(baseURL: account.instance.apiURL, path: "user/playlists")
}
func subscribe(_ channelID: String, onCompletion: @escaping () -> Void = {}) {
resource(baseURL: account.instance.apiURL, path: "subscribe")
.request(.post, json: ["channelId": channelID])
.onCompletion { _ in onCompletion() }
}
func unsubscribe(_ channelID: String, onCompletion: @escaping () -> Void = {}) {
resource(baseURL: account.instance.apiURL, path: "unsubscribe")
.request(.post, json: ["channelId": channelID])
.onCompletion { _ in onCompletion() }
}
func playlist(_ id: String) -> Resource? {
channelPlaylist(id)
}
func playlistVideo(_: String, _: String) -> Resource? { nil }
func playlistVideos(_: String) -> Resource? { nil }
func addVideoToPlaylist(
_ videoID: String,
_ playlistID: String,
onFailure: @escaping (RequestError) -> Void = { _ in },
onSuccess: @escaping () -> Void = {}
) {
let resource = resource(baseURL: account.instance.apiURL, path: "user/playlists/add")
let body = ["videoId": videoID, "playlistId": playlistID]
resource
.request(.post, json: body)
.onSuccess { _ in onSuccess() }
.onFailure(onFailure)
}
func removeVideoFromPlaylist(
_ index: String,
_ playlistID: String,
onFailure: @escaping (RequestError) -> Void,
onSuccess: @escaping () -> Void
) {
let resource = resource(baseURL: account.instance.apiURL, path: "user/playlists/remove")
let body: [String: Any] = ["index": Int(index)!, "playlistId": playlistID]
resource
.request(.post, json: body)
.onSuccess { _ in onSuccess() }
.onFailure(onFailure)
}
func playlistForm(
_ name: String,
_: String,
playlist: Playlist?,
onFailure: @escaping (RequestError) -> Void,
onSuccess: @escaping (Playlist?) -> Void
) {
let body = ["name": name]
let resource = playlist.isNil ? resource(baseURL: account.instance.apiURL, path: "user/playlists/create") : nil
resource?
.request(.post, json: body)
.onSuccess { response in
if let modifiedPlaylist: Playlist = response.typedContent() {
onSuccess(modifiedPlaylist)
} else {
onSuccess(nil)
}
}
.onFailure(onFailure)
}
func deletePlaylist(
_ playlist: Playlist,
onFailure: @escaping (RequestError) -> Void,
onSuccess: @escaping () -> Void
) {
let resource = resource(baseURL: account.instance.apiURL, path: "user/playlists/delete")
let body = ["playlistId": playlist.id]
resource
.request(.post, json: body)
.onSuccess { _ in onSuccess() }
.onFailure(onFailure)
}
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func comments(_ id: Video.ID, page: String?) -> Resource? {
let path = page.isNil ? "comments/\(id)" : "nextpage/comments/\(id)"
let resource = resource(baseURL: account.url, path: path)
if page.isNil {
return resource
}
return resource.withParam("nextpage", page)
}
private func pathPattern(_ path: String) -> String {
"**\(path)"
}
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private func extractContentItem(from content: JSON) -> ContentItem? {
let details = content.dictionaryValue
let contentType: ContentItem.ContentType
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if let url = details["url"]?.string {
if url.contains("/playlist") {
contentType = .playlist
} else if url.contains("/channel") {
contentType = .channel
} else {
contentType = .video
}
} else {
contentType = .video
}
switch contentType {
case .video:
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if let video = extractVideo(from: content) {
return ContentItem(video: video)
}
case .playlist:
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if let playlist = extractChannelPlaylist(from: content) {
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return ContentItem(playlist: playlist)
}
case .channel:
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if let channel = extractChannel(from: content) {
return ContentItem(channel: channel)
}
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default:
return nil
}
return nil
}
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private func extractContentItems(from content: JSON) -> [ContentItem] {
content.arrayValue.compactMap { extractContentItem(from: $0) }
}
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private func extractChannel(from content: JSON) -> Channel? {
let attributes = content.dictionaryValue
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guard let id = attributes["id"]?.string ??
(attributes["url"] ?? attributes["uploaderUrl"])?.string?.components(separatedBy: "/").last
else {
return nil
}
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let subscriptionsCount = attributes["subscriberCount"]?.int ?? attributes["subscribers"]?.int
var videos = [Video]()
if let relatedStreams = attributes["relatedStreams"] {
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videos = extractVideos(from: relatedStreams)
}
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let name = attributes["name"]?.string ??
attributes["uploaderName"]?.string ??
attributes["uploader"]?.string ?? ""
let thumbnailURL = attributes["avatarUrl"]?.url ??
attributes["uploaderAvatar"]?.url ??
attributes["avatar"]?.url ??
attributes["thumbnail"]?.url
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let tabs = attributes["tabs"]?.arrayValue.compactMap { tab in
let name = tab["name"].string
let data = tab["data"].string
if let name, let data, let type = Channel.ContentType(rawValue: name) {
return Channel.Tab(contentType: type, data: data)
}
return nil
} ?? [Channel.Tab]()
return Channel(
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app: .piped,
id: id,
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name: name,
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bannerURL: attributes["bannerUrl"]?.url,
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thumbnailURL: thumbnailURL,
subscriptionsCount: subscriptionsCount,
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verified: attributes["verified"]?.bool,
videos: videos,
tabs: tabs
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)
}
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func extractChannelPlaylist(from json: JSON) -> ChannelPlaylist? {
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let details = json.dictionaryValue
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let id = details["url"]?.stringValue.components(separatedBy: "?list=").last
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let thumbnailURL = details["thumbnail"]?.url ?? details["thumbnailUrl"]?.url
var videos = [Video]()
if let relatedStreams = details["relatedStreams"] {
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videos = extractVideos(from: relatedStreams)
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}
return ChannelPlaylist(
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id: id ?? UUID().uuidString,
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title: details["name"]?.string ?? "",
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thumbnailURL: thumbnailURL,
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channel: extractChannel(from: json),
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videos: videos,
videosCount: details["videos"]?.int
)
}
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private func extractVideo(from content: JSON) -> Video? {
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let details = content.dictionaryValue
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if let url = details["url"]?.string {
guard url.contains("/watch") else {
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return nil
}
}
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let channelId = details["uploaderUrl"]?.string?.components(separatedBy: "/").last ?? "unknown"
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let thumbnails: [Thumbnail] = Thumbnail.Quality.allCases.compactMap {
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if let url = buildThumbnailURL(from: content, quality: $0) {
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return Thumbnail(url: url, quality: $0)
}
return nil
}
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let author = details["uploaderName"]?.string ?? details["uploader"]?.string ?? ""
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let authorThumbnailURL = details["avatarUrl"]?.url ?? details["uploaderAvatar"]?.url ?? details["avatar"]?.url
let subscriptionsCount = details["uploaderSubscriberCount"]?.int
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let uploaded = details["uploaded"]?.double
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var published = (uploaded.isNil || uploaded == -1) ? nil : (uploaded! / 1000).formattedAsRelativeTime()
if published.isNil {
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published = (details["uploadedDate"] ?? details["uploadDate"])?.string ?? ""
}
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let live = details["livestream"]?.bool ?? (details["duration"]?.int == -1)
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let description = extractDescription(from: content) ?? ""
var chapters = extractChapters(from: content)
if chapters.isEmpty, !description.isEmpty {
chapters = extractChapters(from: description)
}
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return Video(
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instanceID: account.instanceID,
app: .piped,
instanceURL: account.instance.apiURL,
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videoID: extractID(from: content),
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title: details["title"]?.string ?? "",
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author: author,
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length: details["duration"]?.double ?? 0,
published: published ?? "",
views: details["views"]?.int ?? 0,
description: description,
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channel: Channel(app: .piped, id: channelId, name: author, thumbnailURL: authorThumbnailURL, subscriptionsCount: subscriptionsCount),
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thumbnails: thumbnails,
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live: live,
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likes: details["likes"]?.int,
dislikes: details["dislikes"]?.int,
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streams: extractStreams(from: content),
related: extractRelated(from: content),
chapters: extractChapters(from: content)
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)
}
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private func extractID(from content: JSON) -> Video.ID {
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content.dictionaryValue["url"]?.string?.components(separatedBy: "?v=").last ??
extractThumbnailURL(from: content)?.relativeString.components(separatedBy: "/")[4] ?? ""
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}
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private func extractThumbnailURL(from content: JSON) -> URL? {
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content.dictionaryValue["thumbnail"]?.url ?? content.dictionaryValue["thumbnailUrl"]?.url
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}
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private func buildThumbnailURL(from content: JSON, quality: Thumbnail.Quality) -> URL? {
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guard let thumbnailURL = extractThumbnailURL(from: content) else {
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return nil
}
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return URL(string: thumbnailURL
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.absoluteString
.replacingOccurrences(of: "hqdefault", with: quality.filename)
.replacingOccurrences(of: "maxresdefault", with: quality.filename)
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)
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}
private func extractUserPlaylist(from json: JSON) -> Playlist? {
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let id = json["id"].string ?? ""
let title = json["name"].string ?? ""
let visibility = Playlist.Visibility.private
return Playlist(id: id, title: title, visibility: visibility)
}
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private func extractDescription(from content: JSON) -> String? {
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guard let description = content.dictionaryValue["description"]?.string else { return nil }
return replaceHTML(description)
}
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private func replaceHTML(_ string: String) -> String {
var string = string.replacingOccurrences(
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of: "<br/>|<br />|<br>",
with: "\n",
options: .regularExpression,
range: nil
)
let linkRegex = #"(<a\s+(?:[^>]*?\s+)?href=\"[^"]*\">[^<]*<\/a>)"#
let hrefRegex = #"href=\"([^"]*)\">"#
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guard let hrefRegex = try? NSRegularExpression(pattern: hrefRegex) else { return string }
string = string.replacingMatches(regex: linkRegex) { matchingGroup in
let results = hrefRegex.matches(in: matchingGroup, range: NSRange(matchingGroup.startIndex..., in: matchingGroup))
if let result = results.first {
if let swiftRange = Range(result.range(at: 1), in: matchingGroup) {
return String(matchingGroup[swiftRange])
}
}
return matchingGroup
}
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string = string
.replacingOccurrences(of: "&amp;", with: "&")
.replacingOccurrences(of: "&nbsp;", with: " ")
.replacingOccurrences(
of: "<[^>]+>",
with: "",
options: .regularExpression,
range: nil
)
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return string
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}
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private func extractVideos(from content: JSON) -> [Video] {
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content.arrayValue.compactMap(extractVideo(from:))
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}
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private func extractStreams(from content: JSON) -> [Stream] {
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var streams = [Stream]()
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if let hlsURL = content.dictionaryValue["hls"]?.url {
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streams.append(Stream(instance: account.instance, hlsURL: hlsURL))
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}
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let audioStreams = content
.dictionaryValue["audioStreams"]?
.arrayValue
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.filter { $0.dictionaryValue["format"]?.string == "M4A" }
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.sorted {
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$0.dictionaryValue["bitrate"]?.int ?? 0 >
$1.dictionaryValue["bitrate"]?.int ?? 0
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} ?? []
guard let audioStream = audioStreams.first else {
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return streams
}
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let videoStreams = content.dictionaryValue["videoStreams"]?.arrayValue ?? []
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videoStreams.forEach { videoStream in
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let videoCodec = videoStream.dictionaryValue["codec"]?.string ?? ""
if Self.disallowedVideoCodecs.contains(where: videoCodec.contains) {
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return
}
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guard let audioAssetUrl = audioStream.dictionaryValue["url"]?.url,
let videoAssetUrl = videoStream.dictionaryValue["url"]?.url
else {
return
}
let audioAsset = AVURLAsset(url: audioAssetUrl)
let videoAsset = AVURLAsset(url: videoAssetUrl)
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let videoOnly = videoStream.dictionaryValue["videoOnly"]?.bool ?? true
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let quality = videoStream.dictionaryValue["quality"]?.string ?? "unknown"
let qualityComponents = quality.components(separatedBy: "p")
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let fps = qualityComponents.count > 1 ? Int(qualityComponents[1]) : 30
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let resolution = Stream.Resolution.from(resolution: quality, fps: fps)
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let videoFormat = videoStream.dictionaryValue["format"]?.string
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if videoOnly {
streams.append(
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Stream(
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instance: account.instance,
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audioAsset: audioAsset,
videoAsset: videoAsset,
resolution: resolution,
kind: .adaptive,
videoFormat: videoFormat
)
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)
} else {
streams.append(
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SingleAssetStream(
instance: account.instance,
avAsset: videoAsset,
resolution: resolution,
kind: .stream
)
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)
}
}
return streams
}
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private func extractRelated(from content: JSON) -> [Video] {
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content
.dictionaryValue["relatedStreams"]?
.arrayValue
.compactMap(extractVideo(from:)) ?? []
}
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private func extractComment(from content: JSON) -> Comment? {
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let details = content.dictionaryValue
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let author = details["author"]?.string ?? ""
let commentorUrl = details["commentorUrl"]?.string
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let channelId = commentorUrl?.components(separatedBy: "/")[2] ?? ""
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return Comment(
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id: details["commentId"]?.string ?? UUID().uuidString,
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author: author,
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authorAvatarURL: details["thumbnail"]?.string ?? "",
time: details["commentedTime"]?.string ?? "",
pinned: details["pinned"]?.bool ?? false,
hearted: details["hearted"]?.bool ?? false,
likeCount: details["likeCount"]?.int ?? 0,
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text: extractCommentText(from: details["commentText"]?.stringValue),
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repliesPage: details["repliesPage"]?.string,
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channel: Channel(app: .piped, id: channelId, name: author)
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)
}
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private func extractCommentText(from string: String?) -> String {
guard let string, !string.isEmpty else { return "" }
return replaceHTML(string)
}
private func extractChapters(from content: JSON) -> [Chapter] {
guard let chapters = content.dictionaryValue["chapters"]?.array else {
return .init()
}
return chapters.compactMap { chapter in
guard let title = chapter["title"].string,
let image = chapter["image"].url,
let start = chapter["start"].double
else {
return nil
}
return Chapter(title: title, image: image, start: start)
}
}
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}