407 lines
11 KiB
Go
407 lines
11 KiB
Go
package sources
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import (
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"fmt"
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"math"
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"os"
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"regexp"
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"strconv"
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"strings"
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"time"
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"github.com/lbryio/lbry.go/extras/errors"
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"github.com/lbryio/lbry.go/extras/jsonrpc"
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"github.com/lbryio/lbry.go/extras/util"
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"github.com/lbryio/ytsync/namer"
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"github.com/lbryio/ytsync/sdk"
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"github.com/lbryio/ytsync/thumbs"
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"github.com/ChannelMeter/iso8601duration"
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"github.com/aws/aws-sdk-go/aws"
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"github.com/nikooo777/ytdl"
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log "github.com/sirupsen/logrus"
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"google.golang.org/api/youtube/v3"
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)
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type YoutubeVideo struct {
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id string
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channelTitle string
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title string
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description string
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playlistPosition int64
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size *int64
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maxVideoSize int64
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maxVideoLength float64
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publishedAt time.Time
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dir string
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youtubeInfo *youtube.Video
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tags []string
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awsConfig aws.Config
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thumbnailURL string
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lbryChannelID string
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}
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const reflectorURL = "http://blobs.lbry.io/"
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var youtubeCategories = map[string]string{
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"1": "Film & Animation",
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"2": "Autos & Vehicles",
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"10": "Music",
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"15": "Pets & Animals",
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"17": "Sports",
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"18": "Short Movies",
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"19": "Travel & Events",
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"20": "Gaming",
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"21": "Videoblogging",
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"22": "People & Blogs",
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"23": "Comedy",
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"24": "Entertainment",
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"25": "News & Politics",
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"26": "Howto & Style",
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"27": "Education",
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"28": "Science & Technology",
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"29": "Nonprofits & Activism",
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"30": "Movies",
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"31": "Anime/Animation",
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"32": "Action/Adventure",
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"33": "Classics",
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"34": "Comedy",
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"35": "Documentary",
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"36": "Drama",
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"37": "Family",
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"38": "Foreign",
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"39": "Horror",
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"40": "Sci-Fi/Fantasy",
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"41": "Thriller",
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"42": "Shorts",
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"43": "Shows",
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"44": "Trailers",
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}
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func NewYoutubeVideo(directory string, videoData *youtube.Video, playlistPosition int64, awsConfig aws.Config) *YoutubeVideo {
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publishedAt, _ := time.Parse(time.RFC3339Nano, videoData.Snippet.PublishedAt) // ignore parse errors
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return &YoutubeVideo{
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id: videoData.Id,
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title: videoData.Snippet.Title,
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description: videoData.Snippet.Description,
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channelTitle: videoData.Snippet.ChannelTitle,
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playlistPosition: playlistPosition,
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publishedAt: publishedAt,
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dir: directory,
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youtubeInfo: videoData,
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awsConfig: awsConfig,
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}
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}
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func (v *YoutubeVideo) ID() string {
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return v.id
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}
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func (v *YoutubeVideo) PlaylistPosition() int {
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return int(v.playlistPosition)
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}
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func (v *YoutubeVideo) IDAndNum() string {
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return v.ID() + " (" + strconv.Itoa(int(v.playlistPosition)) + " in channel)"
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}
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func (v *YoutubeVideo) PublishedAt() time.Time {
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return v.publishedAt
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}
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func (v *YoutubeVideo) getFullPath() string {
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maxLen := 30
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reg := regexp.MustCompile(`[^a-zA-Z0-9]+`)
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chunks := strings.Split(strings.ToLower(strings.Trim(reg.ReplaceAllString(v.title, "-"), "-")), "-")
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name := chunks[0]
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if len(name) > maxLen {
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name = name[:maxLen]
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}
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for _, chunk := range chunks[1:] {
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tmpName := name + "-" + chunk
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if len(tmpName) > maxLen {
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if len(name) < 20 {
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name = tmpName[:maxLen]
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}
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break
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}
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name = tmpName
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}
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if len(name) < 1 {
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name = v.id
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}
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return v.videoDir() + "/" + name + ".mp4"
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}
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func (v *YoutubeVideo) getAbbrevDescription() string {
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maxLines := 10
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description := strings.TrimSpace(v.description)
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if strings.Count(description, "\n") < maxLines {
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return description
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}
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additionalDescription := "\nhttps://www.youtube.com/watch?v=" + v.id
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khanAcademyClaimID := "5fc52291980268b82413ca4c0ace1b8d749f3ffb"
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if v.lbryChannelID == khanAcademyClaimID {
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additionalDescription = additionalDescription + "\nNote: All Khan Academy content is available for free at (www.khanacademy.org)"
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}
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return strings.Join(strings.Split(description, "\n")[:maxLines], "\n") + "\n..."
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}
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func (v *YoutubeVideo) download() error {
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videoPath := v.getFullPath()
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err := os.Mkdir(v.videoDir(), 0750)
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if err != nil && !strings.Contains(err.Error(), "file exists") {
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return errors.Wrap(err, 0)
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}
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_, err = os.Stat(videoPath)
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if err != nil && !os.IsNotExist(err) {
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return errors.Err(err)
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} else if err == nil {
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log.Debugln(v.id + " already exists at " + videoPath)
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return nil
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}
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videoUrl := "https://www.youtube.com/watch?v=" + v.id
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videoInfo, err := ytdl.GetVideoInfo(videoUrl)
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if err != nil {
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return errors.Err(err)
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}
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codec := []string{"H.264"}
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ext := []string{"mp4"}
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//Filter requires a [] interface{}
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codecFilter := make([]interface{}, len(codec))
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for i, v := range codec {
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codecFilter[i] = v
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}
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//Filter requires a [] interface{}
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extFilter := make([]interface{}, len(ext))
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for i, v := range ext {
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extFilter[i] = v
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}
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formats := videoInfo.Formats.Filter(ytdl.FormatVideoEncodingKey, codecFilter).Filter(ytdl.FormatExtensionKey, extFilter)
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if len(formats) == 0 {
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return errors.Err("no compatible format available for this video")
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}
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maxRetryAttempts := 5
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isLengthLimitSet := v.maxVideoLength > 0.01
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if isLengthLimitSet && videoInfo.Duration.Hours() > v.maxVideoLength {
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return errors.Err("video is too long to process")
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}
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for i := 0; i < len(formats) && i < maxRetryAttempts; i++ {
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formatIndex := i
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if i == maxRetryAttempts-1 {
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formatIndex = len(formats) - 1
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}
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var downloadedFile *os.File
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downloadedFile, err = os.Create(videoPath)
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if err != nil {
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return errors.Err(err)
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}
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err = videoInfo.Download(formats[formatIndex], downloadedFile)
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_ = downloadedFile.Close()
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if err != nil {
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//delete the video and ignore the error
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_ = v.delete()
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return errors.Err(err.Error())
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}
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fi, err := os.Stat(v.getFullPath())
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if err != nil {
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return errors.Err(err)
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}
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videoSize := fi.Size()
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v.size = &videoSize
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isVideoSizeLimitSet := v.maxVideoSize > 0
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if isVideoSizeLimitSet && videoSize > v.maxVideoSize {
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//delete the video and ignore the error
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_ = v.delete()
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err = errors.Err("file is too big and there is no other format available")
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} else {
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break
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}
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}
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return errors.Err(err)
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}
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func (v *YoutubeVideo) videoDir() string {
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return v.dir + "/" + v.id
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}
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func (v *YoutubeVideo) delete() error {
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videoPath := v.getFullPath()
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err := os.Remove(videoPath)
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if err != nil {
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log.Errorln(errors.Prefix("delete error", err))
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return err
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}
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log.Debugln(v.id + " deleted from disk (" + videoPath + ")")
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return nil
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}
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func (v *YoutubeVideo) triggerThumbnailSave() (err error) {
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thumbnail := thumbs.GetBestThumbnail(v.youtubeInfo.Snippet.Thumbnails)
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v.thumbnailURL, err = thumbs.MirrorThumbnail(thumbnail.Url, v.ID(), v.awsConfig)
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return err
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}
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func (v *YoutubeVideo) publish(daemon *jsonrpc.Client, claimAddress string, amount float64, namer *namer.Namer) (*SyncSummary, error) {
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languages, locations, tags := v.getMetadata()
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options := jsonrpc.StreamCreateOptions{
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ClaimCreateOptions: jsonrpc.ClaimCreateOptions{
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Title: v.title,
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Description: v.getAbbrevDescription(),
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ClaimAddress: &claimAddress,
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Languages: languages,
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ThumbnailURL: &v.thumbnailURL,
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Tags: tags,
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Locations: locations,
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},
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Author: util.PtrToString(v.channelTitle),
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License: util.PtrToString("Copyrighted (contact author)"),
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ReleaseTime: util.PtrToInt64(v.publishedAt.Unix()),
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ChannelID: &v.lbryChannelID,
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}
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return publishAndRetryExistingNames(daemon, v.title, v.getFullPath(), amount, options, namer)
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}
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func (v *YoutubeVideo) Size() *int64 {
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return v.size
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}
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type SyncParams struct {
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ClaimAddress string
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Amount float64
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ChannelID string
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MaxVideoSize int
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Namer *namer.Namer
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MaxVideoLength float64
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}
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func (v *YoutubeVideo) Sync(daemon *jsonrpc.Client, params SyncParams, existingVideoData *sdk.SyncedVideo, reprocess bool) (*SyncSummary, error) {
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v.maxVideoSize = int64(params.MaxVideoSize) * 1024 * 1024
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v.maxVideoLength = params.MaxVideoLength
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v.lbryChannelID = params.ChannelID
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if reprocess {
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summary, err := v.reprocess(daemon, params, existingVideoData)
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return summary, err
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}
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return v.downloadAndPublish(daemon, params)
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}
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func (v *YoutubeVideo) downloadAndPublish(daemon *jsonrpc.Client, params SyncParams) (*SyncSummary, error) {
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//download and thumbnail can be done in parallel
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err := v.download()
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if err != nil {
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return nil, errors.Prefix("download error", err)
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}
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log.Debugln("Downloaded " + v.id)
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err = v.triggerThumbnailSave()
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if err != nil {
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return nil, errors.Prefix("thumbnail error", err)
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}
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log.Debugln("Created thumbnail for " + v.id)
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summary, err := v.publish(daemon, params.ClaimAddress, params.Amount, params.Namer)
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//delete the video in all cases (and ignore the error)
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_ = v.delete()
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return summary, errors.Prefix("publish error", err)
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}
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func (v *YoutubeVideo) getMetadata() (languages []string, locations []jsonrpc.Location, tags []string) {
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languages = nil
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if v.youtubeInfo.Snippet.DefaultLanguage != "" {
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languages = []string{v.youtubeInfo.Snippet.DefaultLanguage}
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}
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locations = nil
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if v.youtubeInfo.RecordingDetails.Location != nil {
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locations = []jsonrpc.Location{{
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Latitude: util.PtrToString(fmt.Sprintf("%.7f", v.youtubeInfo.RecordingDetails.Location.Latitude)),
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Longitude: util.PtrToString(fmt.Sprintf("%.7f", v.youtubeInfo.RecordingDetails.Location.Longitude)),
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}}
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}
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tags = append([]string{youtubeCategories[v.youtubeInfo.Snippet.CategoryId]}, v.youtubeInfo.Snippet.Tags...)
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return languages, locations, tags
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}
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func (v *YoutubeVideo) reprocess(daemon *jsonrpc.Client, params SyncParams, existingVideoData *sdk.SyncedVideo) (*SyncSummary, error) {
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c, err := daemon.ClaimSearch(nil, &existingVideoData.ClaimID, nil, nil)
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if err != nil {
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return nil, errors.Err(err)
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}
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if len(c.Claims) == 0 {
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return nil, errors.Err("cannot reprocess: no claim found for this video")
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} else if len(c.Claims) > 1 {
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return nil, errors.Err("cannot reprocess: too many claims. claimID: %s", existingVideoData.ClaimID)
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}
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currentClaim := c.Claims[0]
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languages, locations, tags := v.getMetadata()
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thumbnailURL := ""
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if currentClaim.Value.GetThumbnail() == nil {
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thumbnail := thumbs.GetBestThumbnail(v.youtubeInfo.Snippet.Thumbnails)
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thumbnailURL, err = thumbs.MirrorThumbnail(thumbnail.Url, v.ID(), v.awsConfig)
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} else {
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thumbnailURL = thumbs.ThumbnailEndpoint + v.ID()
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}
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videoSize, err := currentClaim.GetStreamSizeByMagic()
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if err != nil {
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if existingVideoData.Size > 0 {
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videoSize = uint64(existingVideoData.Size)
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} else {
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log.Infof("%s: the video must be republished as we can't get the right size", v.ID())
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//return v.downloadAndPublish(daemon, params) //TODO: actually republish the video. NB: the current claim should be abandoned first
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return nil, errors.Err("the video must be republished as we can't get the right size")
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}
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}
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videoDuration, err := duration.FromString(v.youtubeInfo.ContentDetails.Duration)
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if err != nil {
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return nil, errors.Err(err)
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}
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pr, err := daemon.StreamUpdate(existingVideoData.ClaimID, jsonrpc.StreamUpdateOptions{
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StreamCreateOptions: &jsonrpc.StreamCreateOptions{
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ClaimCreateOptions: jsonrpc.ClaimCreateOptions{
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Title: v.title,
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Description: v.getAbbrevDescription(),
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Tags: tags,
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Languages: languages,
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Locations: locations,
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ThumbnailURL: &thumbnailURL,
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},
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Author: util.PtrToString(""),
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License: util.PtrToString("Copyrighted (contact author)"),
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ReleaseTime: util.PtrToInt64(v.publishedAt.Unix()),
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Duration: util.PtrToUint64(uint64(math.Ceil(videoDuration.ToDuration().Seconds()))),
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ChannelID: &v.lbryChannelID,
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},
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FileSize: util.PtrToString(fmt.Sprintf("%d", videoSize)),
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})
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if err != nil {
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return nil, err
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}
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return &SyncSummary{
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ClaimID: pr.ClaimID,
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ClaimName: pr.Output.Name,
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}, nil
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}
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