refactor
This commit is contained in:
Alex Grintsvayg
parent
bb0583dfb9
commit
be63f05edc
4 changed files with 496 additions and 456 deletions
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@ -20,15 +20,17 @@ func init() {
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RootCmd.AddCommand(testCmd)
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}
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func strPtr(s string) *string { return &s }
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func test(cmd *cobra.Command, args []string) {
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daemon = jsonrpc.NewClient("")
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daemon := jsonrpc.NewClient("")
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addresses, err := daemon.WalletList()
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if err != nil {
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panic(err)
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} else if addresses == nil || len(*addresses) == 0 {
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panic(fmt.Errorf("could not find an address in wallet"))
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}
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claimAddress = (*addresses)[0]
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claimAddress := (*addresses)[0]
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if claimAddress == "" {
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panic(fmt.Errorf("found blank claim address"))
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}
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469
cmd/ytsync.go
469
cmd/ytsync.go
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@ -1,28 +1,10 @@
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package cmd
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import (
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"bytes"
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"encoding/json"
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"fmt"
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"io/ioutil"
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"net/http"
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"os"
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"regexp"
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"sort"
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"strconv"
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"strings"
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"sync"
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"sync/atomic"
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"time"
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sync "github.com/lbryio/lbry.go/ytsync"
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"github.com/lbryio/lbry.go/jsonrpc"
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"github.com/garyburd/redigo/redis"
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ytdl "github.com/kkdai/youtube"
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log "github.com/sirupsen/logrus"
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"github.com/spf13/cobra"
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"google.golang.org/api/googleapi/transport"
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"google.golang.org/api/youtube/v3"
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)
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func init() {
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@ -37,58 +19,17 @@ func init() {
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RootCmd.AddCommand(ytSyncCmd)
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}
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const (
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concurrentVideos = 1
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redisHashKey = "ytsync"
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redisSyncedVal = "t"
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defaultMaxTries = 1
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)
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type video struct {
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id string
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channelID 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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publishedAt time.Time
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}
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func (v video) getFilename() string {
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return videoDirectory + "/" + v.id + ".mp4"
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}
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// sorting videos
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type byPublishedAt []video
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func (a byPublishedAt) Len() int { return len(a) }
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func (a byPublishedAt) Swap(i, j int) { a[i], a[j] = a[j], a[i] }
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func (a byPublishedAt) Less(i, j int) bool { return a[i].publishedAt.Before(a[j].publishedAt) }
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type byPlaylistPosition []video
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func (a byPlaylistPosition) Len() int { return len(a) }
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func (a byPlaylistPosition) Swap(i, j int) { a[i], a[j] = a[j], a[i] }
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func (a byPlaylistPosition) Less(i, j int) bool { return a[i].playlistPosition < a[j].playlistPosition }
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const defaultMaxTries = 1
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var (
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ytAPIKey string
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channelID string
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lbryChannelName string
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stopOnError bool
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maxTries int
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daemon *jsonrpc.Client
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claimAddress string
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videoDirectory string
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redisPool *redis.Pool
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stopOnError bool
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maxTries int
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)
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func ytsync(cmd *cobra.Command, args []string) {
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var err error
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ytAPIKey = args[0]
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channelID = args[1]
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ytAPIKey := args[0]
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channelID := args[1]
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lbryChannelName := ""
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if len(args) > 2 {
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lbryChannelName = args[2]
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}
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@ -102,397 +43,17 @@ func ytsync(cmd *cobra.Command, args []string) {
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return
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}
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redisPool = &redis.Pool{
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MaxIdle: 3,
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IdleTimeout: 5 * time.Minute,
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Dial: func() (redis.Conn, error) { return redis.Dial("tcp", ":6379") },
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TestOnBorrow: func(c redis.Conn, t time.Time) error {
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if time.Since(t) < time.Minute {
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return nil
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}
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_, err := c.Do("PING")
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return err
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},
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s := sync.Sync{
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YoutubeAPIKey: ytAPIKey,
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YoutubeChannelID: channelID,
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LbryChannelName: lbryChannelName,
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StopOnError: stopOnError,
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MaxTries: maxTries,
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ConcurrentVideos: 1,
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}
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var wg sync.WaitGroup
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videoQueue := make(chan video)
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stopEnqueuing := make(chan struct{})
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sendStopEnqueuing := sync.Once{}
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var videoErrored atomic.Value
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videoErrored.Store(false)
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if stopOnError {
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log.Println("Will stop publishing if an error is detected")
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}
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daemon = jsonrpc.NewClient("")
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videoDirectory, err = ioutil.TempDir("", "ytsync")
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err := s.Go()
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if err != nil {
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panic(err)
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}
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if lbryChannelName != "" {
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err = ensureChannelOwnership()
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if err != nil {
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panic(err)
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}
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}
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addresses, err := daemon.WalletList()
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if err != nil {
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panic(err)
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} else if addresses == nil || len(*addresses) == 0 {
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panic(fmt.Errorf("could not find an address in wallet"))
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}
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claimAddress = (*addresses)[0]
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if claimAddress == "" {
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panic(fmt.Errorf("found blank claim address"))
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}
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for i := 0; i < concurrentVideos; i++ {
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go func() {
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wg.Add(1)
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defer wg.Done()
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for {
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v, more := <-videoQueue
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if !more {
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return
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}
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if stopOnError && videoErrored.Load().(bool) {
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log.Println("Video errored. Exiting")
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return
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}
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tryCount := 0
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for {
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tryCount++
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err := processVideo(v)
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if err != nil {
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log.Errorln("error processing video: " + err.Error())
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if stopOnError {
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videoErrored.Store(true)
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sendStopEnqueuing.Do(func() {
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stopEnqueuing <- struct{}{}
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})
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} else if maxTries != defaultMaxTries {
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if strings.Contains(err.Error(), "non 200 status code received") ||
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strings.Contains(err.Error(), " reason: 'This video contains content from") {
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log.Println("This error should not be retried at all")
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} else if tryCount >= maxTries {
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log.Println("Video failed after " + strconv.Itoa(maxTries) + " retries, moving on")
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} else {
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log.Println("Retrying")
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continue
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}
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}
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}
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break
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}
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}
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}()
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}
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err = enqueueVideosFromChannel(channelID, &videoQueue, &stopEnqueuing)
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if err != nil {
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panic(err)
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}
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close(videoQueue)
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wg.Wait()
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}
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func ensureChannelOwnership() error {
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channels, err := daemon.ChannelListMine()
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if err != nil {
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return err
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} else if channels == nil {
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return fmt.Errorf("no channels")
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}
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for _, channel := range *channels {
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if channel.Name == lbryChannelName {
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return nil
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}
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}
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resolveResp, err := daemon.Resolve(lbryChannelName)
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if err != nil {
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return err
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}
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channelNotFound := (*resolveResp)[lbryChannelName].Error == nil || strings.Contains(*((*resolveResp)[lbryChannelName].Error), "cannot be resolved")
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if !channelNotFound {
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return fmt.Errorf("Channel exists and we don't own it. Pick another channel.")
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}
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_, err = daemon.ChannelNew(lbryChannelName, 0.01)
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if err != nil {
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return err
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}
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// niko's code says "unfortunately the queues in the daemon are not yet merged so we must give it some time for the channel to go through"
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wait := 15 * time.Second
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log.Println("Waiting " + wait.String() + " for channel claim to go through")
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time.Sleep(wait)
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return nil
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}
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func enqueueVideosFromChannel(channelID string, videoChan *chan video, stopEnqueuing *chan struct{}) error {
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client := &http.Client{
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Transport: &transport.APIKey{Key: ytAPIKey},
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}
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service, err := youtube.New(client)
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if err != nil {
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return fmt.Errorf("error creating YouTube service: %v", err)
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}
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response, err := service.Channels.List("contentDetails").Id(channelID).Do()
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if err != nil {
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return fmt.Errorf("error getting channels: %v", err)
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}
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if len(response.Items) < 1 {
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return fmt.Errorf("youtube channel not found")
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}
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if response.Items[0].ContentDetails.RelatedPlaylists == nil {
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return fmt.Errorf("no related playlists")
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}
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playlistID := response.Items[0].ContentDetails.RelatedPlaylists.Uploads
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if playlistID == "" {
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return fmt.Errorf("no channel playlist")
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}
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videos := []video{}
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nextPageToken := ""
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for {
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req := service.PlaylistItems.List("snippet").
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PlaylistId(playlistID).
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MaxResults(50).
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PageToken(nextPageToken)
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playlistResponse, err := req.Do()
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if err != nil {
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return fmt.Errorf("error getting playlist items: %v", err)
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}
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if len(playlistResponse.Items) < 1 {
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return fmt.Errorf("playlist items not found")
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}
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for _, item := range playlistResponse.Items {
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// todo: there's thumbnail info here. why did we need lambda???
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publishedAt, err := time.Parse(time.RFC3339Nano, item.Snippet.PublishedAt)
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if err != nil {
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return fmt.Errorf("failed to parse time: %v", err.Error())
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}
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// normally we'd send the video into the channel here, but youtube api doesn't have sorting
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// so we have to get ALL the videos, then sort them, then send them in
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videos = append(videos, video{
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id: item.Snippet.ResourceId.VideoId,
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channelID: channelID,
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title: item.Snippet.Title,
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description: item.Snippet.Description,
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channelTitle: item.Snippet.ChannelTitle,
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playlistPosition: item.Snippet.Position,
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publishedAt: publishedAt,
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})
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}
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log.Infoln("Got info for " + strconv.Itoa(len(videos)) + " videos from youtube API")
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nextPageToken = playlistResponse.NextPageToken
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if nextPageToken == "" {
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break
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}
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}
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sort.Sort(byPublishedAt(videos))
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//or sort.Sort(sort.Reverse(byPlaylistPosition(videos)))
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for _, v := range videos {
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select {
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case *videoChan <- v:
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case <-*stopEnqueuing:
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return nil
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}
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}
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return nil
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}
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func processVideo(v video) error {
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log.Println("========================================")
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log.Println("Processing " + v.id + " (" + strconv.Itoa(int(v.playlistPosition)) + " in channel)")
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conn := redisPool.Get()
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defer conn.Close()
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alreadyPublished, err := redis.String(conn.Do("HGET", redisHashKey, v.id))
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if err != nil && err != redis.ErrNil {
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return fmt.Errorf("redis error: %s", err.Error())
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}
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if alreadyPublished == redisSyncedVal {
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log.Println(v.id + " already published")
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return nil
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}
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//download and thumbnail can be done in parallel
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err = downloadVideo(v)
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if err != nil {
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return fmt.Errorf("download error: %s", err.Error())
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}
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err = triggerThumbnailSave(v.id)
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if err != nil {
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return fmt.Errorf("thumbnail error: %s", err.Error())
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}
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err = publish(v, conn)
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if err != nil {
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return fmt.Errorf("publish error: %s", err.Error())
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}
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return nil
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}
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func downloadVideo(v video) error {
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verbose := false
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videoPath := v.getFilename()
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_, err := os.Stat(videoPath)
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if err != nil && !os.IsNotExist(err) {
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return err
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} else if err == nil {
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log.Println(v.id + " already exists at " + videoPath)
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return nil
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}
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downloader := ytdl.NewYoutube(verbose)
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err = downloader.DecodeURL("https://www.youtube.com/watch?v=" + v.id)
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if err != nil {
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return err
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}
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err = downloader.StartDownload(videoPath)
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if err != nil {
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return err
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}
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log.Debugln("Downloaded " + v.id)
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return nil
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}
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func triggerThumbnailSave(videoID string) error {
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client := &http.Client{Timeout: 30 * time.Second}
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params, err := json.Marshal(map[string]string{"videoid": videoID})
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if err != nil {
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return err
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}
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request, err := http.NewRequest(http.MethodPut, "https://jgp4g1qoud.execute-api.us-east-1.amazonaws.com/prod/thumbnail", bytes.NewBuffer(params))
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if err != nil {
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return err
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}
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response, err := client.Do(request)
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if err != nil {
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return err
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}
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defer response.Body.Close()
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contents, err := ioutil.ReadAll(response.Body)
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if err != nil {
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return err
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}
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var decoded struct {
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error int `json:"error"`
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url string `json:"url,omitempty"`
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message string `json:"message,omitempty"`
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}
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err = json.Unmarshal(contents, &decoded)
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if err != nil {
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return err
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}
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if decoded.error != 0 {
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return fmt.Errorf("error creating thumbnail: " + decoded.message)
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}
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log.Debugln("Created thumbnail for " + videoID)
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return nil
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}
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func strPtr(s string) *string { return &s }
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func titleToClaimName(name string) string {
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maxLen := 40
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reg := regexp.MustCompile(`[^a-zA-Z0-9]+`)
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chunks := strings.Split(strings.ToLower(strings.Trim(reg.ReplaceAllString(name, "-"), "-")), "-")
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name = chunks[0]
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if len(name) > maxLen {
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return 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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return name
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}
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func limitDescription(description string) string {
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maxLines := 10
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description = strings.TrimSpace(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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return strings.Join(strings.Split(description, "\n")[:maxLines], "\n") + "\n..."
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}
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func publish(v video, conn redis.Conn) error {
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options := jsonrpc.PublishOptions{
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Title: &v.title,
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Author: &v.channelTitle,
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Description: strPtr(limitDescription(v.description) + "\nhttps://www.youtube.com/watch?v=" + v.id),
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Language: strPtr("en"),
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ClaimAddress: &claimAddress,
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Thumbnail: strPtr("http://berk.ninja/thumbnails/" + v.id),
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License: strPtr("Copyrighted (contact author)"),
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}
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if lbryChannelName != "" {
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options.ChannelName = &lbryChannelName
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}
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_, err := daemon.Publish(titleToClaimName(v.title), v.getFilename(), 0.01, options)
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if err != nil {
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return err
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}
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_, err = redis.Bool(conn.Do("HSET", redisHashKey, v.id, redisSyncedVal))
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if err != nil {
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return fmt.Errorf("redis error: %s", err.Error())
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}
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return nil
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}
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69
ytsync/video.go
Normal file
69
ytsync/video.go
Normal file
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@ -0,0 +1,69 @@
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|||
package ytsync
|
||||
|
||||
import (
|
||||
"regexp"
|
||||
"strings"
|
||||
"time"
|
||||
)
|
||||
|
||||
type video struct {
|
||||
id string
|
||||
channelID string
|
||||
channelTitle string
|
||||
title string
|
||||
description string
|
||||
playlistPosition int64
|
||||
publishedAt time.Time
|
||||
dir string
|
||||
}
|
||||
|
||||
func (v video) getFilename() string {
|
||||
return v.dir + "/" + v.id + ".mp4"
|
||||
}
|
||||
|
||||
func (v video) getClaimName() string {
|
||||
maxLen := 40
|
||||
reg := regexp.MustCompile(`[^a-zA-Z0-9]+`)
|
||||
|
||||
chunks := strings.Split(strings.ToLower(strings.Trim(reg.ReplaceAllString(v.title, "-"), "-")), "-")
|
||||
|
||||
name := chunks[0]
|
||||
if len(name) > maxLen {
|
||||
return name[:maxLen]
|
||||
}
|
||||
|
||||
for _, chunk := range chunks[1:] {
|
||||
tmpName := name + "-" + chunk
|
||||
if len(tmpName) > maxLen {
|
||||
if len(name) < 20 {
|
||||
name = tmpName[:maxLen]
|
||||
}
|
||||
break
|
||||
}
|
||||
name = tmpName
|
||||
}
|
||||
|
||||
return name
|
||||
}
|
||||
|
||||
func (v video) getAbbrevDescription() string {
|
||||
maxLines := 10
|
||||
description := strings.TrimSpace(v.description)
|
||||
if strings.Count(description, "\n") < maxLines {
|
||||
return description
|
||||
}
|
||||
return strings.Join(strings.Split(description, "\n")[:maxLines], "\n") + "\n..."
|
||||
}
|
||||
|
||||
// sorting videos
|
||||
type byPublishedAt []video
|
||||
|
||||
func (a byPublishedAt) Len() int { return len(a) }
|
||||
func (a byPublishedAt) Swap(i, j int) { a[i], a[j] = a[j], a[i] }
|
||||
func (a byPublishedAt) Less(i, j int) bool { return a[i].publishedAt.Before(a[j].publishedAt) }
|
||||
|
||||
type byPlaylistPosition []video
|
||||
|
||||
func (a byPlaylistPosition) Len() int { return len(a) }
|
||||
func (a byPlaylistPosition) Swap(i, j int) { a[i], a[j] = a[j], a[i] }
|
||||
func (a byPlaylistPosition) Less(i, j int) bool { return a[i].playlistPosition < a[j].playlistPosition }
|
||||
408
ytsync/ytsync.go
Normal file
408
ytsync/ytsync.go
Normal file
|
|
@ -0,0 +1,408 @@
|
|||
package ytsync
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"encoding/json"
|
||||
"io/ioutil"
|
||||
"net/http"
|
||||
"os"
|
||||
"sort"
|
||||
"strconv"
|
||||
"strings"
|
||||
"sync"
|
||||
"sync/atomic"
|
||||
"time"
|
||||
|
||||
"github.com/lbryio/lbry.go/jsonrpc"
|
||||
|
||||
"github.com/garyburd/redigo/redis"
|
||||
"github.com/go-errors/errors"
|
||||
ytdl "github.com/kkdai/youtube"
|
||||
log "github.com/sirupsen/logrus"
|
||||
"google.golang.org/api/googleapi/transport"
|
||||
"google.golang.org/api/youtube/v3"
|
||||
)
|
||||
|
||||
const (
|
||||
redisHashKey = "ytsync"
|
||||
redisSyncedVal = "t"
|
||||
)
|
||||
|
||||
// Sync stores the options that control how syncing happens
|
||||
type Sync struct {
|
||||
YoutubeAPIKey string
|
||||
YoutubeChannelID string
|
||||
LbryChannelName string
|
||||
StopOnError bool
|
||||
MaxTries int
|
||||
ConcurrentVideos int
|
||||
|
||||
daemon *jsonrpc.Client
|
||||
claimAddress string
|
||||
videoDirectory string
|
||||
redisPool *redis.Pool
|
||||
}
|
||||
|
||||
func (s *Sync) Go() error {
|
||||
var err error
|
||||
|
||||
s.redisPool = &redis.Pool{
|
||||
MaxIdle: 3,
|
||||
IdleTimeout: 5 * time.Minute,
|
||||
Dial: func() (redis.Conn, error) { return redis.Dial("tcp", ":6379") },
|
||||
TestOnBorrow: func(c redis.Conn, t time.Time) error {
|
||||
if time.Since(t) < time.Minute {
|
||||
return nil
|
||||
}
|
||||
_, err := c.Do("PING")
|
||||
return err
|
||||
},
|
||||
}
|
||||
|
||||
s.videoDirectory, err = ioutil.TempDir("", "ytsync")
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
s.daemon = jsonrpc.NewClient("")
|
||||
|
||||
addresses, err := s.daemon.WalletList()
|
||||
if err != nil {
|
||||
return err
|
||||
} else if addresses == nil || len(*addresses) == 0 {
|
||||
return errors.New("could not find an address in wallet")
|
||||
}
|
||||
claimAddress := (*addresses)[0]
|
||||
if claimAddress == "" {
|
||||
return errors.New("found blank claim address")
|
||||
}
|
||||
|
||||
var wg sync.WaitGroup
|
||||
videoQueue := make(chan video)
|
||||
|
||||
stopEnqueuing := make(chan struct{})
|
||||
sendStopEnqueuing := sync.Once{}
|
||||
|
||||
var videoErrored atomic.Value
|
||||
videoErrored.Store(false)
|
||||
if s.StopOnError {
|
||||
log.Println("Will stop publishing if an error is detected")
|
||||
}
|
||||
|
||||
if s.LbryChannelName != "" {
|
||||
err = s.ensureChannelOwnership()
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
}
|
||||
|
||||
for i := 0; i < s.ConcurrentVideos; i++ {
|
||||
go func() {
|
||||
wg.Add(1)
|
||||
defer wg.Done()
|
||||
|
||||
for {
|
||||
v, more := <-videoQueue
|
||||
if !more {
|
||||
return
|
||||
}
|
||||
if s.StopOnError && videoErrored.Load().(bool) {
|
||||
log.Println("Video errored. Exiting")
|
||||
return
|
||||
}
|
||||
|
||||
tryCount := 0
|
||||
for {
|
||||
tryCount++
|
||||
err := s.processVideo(v)
|
||||
|
||||
if err != nil {
|
||||
log.Errorln("error processing video: " + err.Error())
|
||||
if s.StopOnError {
|
||||
videoErrored.Store(true)
|
||||
sendStopEnqueuing.Do(func() {
|
||||
stopEnqueuing <- struct{}{}
|
||||
})
|
||||
} else if s.MaxTries > 1 {
|
||||
if strings.Contains(err.Error(), "non 200 status code received") ||
|
||||
strings.Contains(err.Error(), " reason: 'This video contains content from") {
|
||||
log.Println("This error should not be retried at all")
|
||||
} else if tryCount >= s.MaxTries {
|
||||
log.Println("Video failed after " + strconv.Itoa(s.MaxTries) + " retries, moving on")
|
||||
} else {
|
||||
log.Println("Retrying")
|
||||
continue
|
||||
}
|
||||
}
|
||||
}
|
||||
break
|
||||
}
|
||||
}
|
||||
}()
|
||||
}
|
||||
|
||||
err = s.enqueueVideosFromChannel(s.YoutubeChannelID, &videoQueue, &stopEnqueuing)
|
||||
close(videoQueue)
|
||||
wg.Wait()
|
||||
return err
|
||||
}
|
||||
|
||||
func (s *Sync) ensureChannelOwnership() error {
|
||||
channels, err := s.daemon.ChannelListMine()
|
||||
if err != nil {
|
||||
return err
|
||||
} else if channels == nil {
|
||||
return errors.New("no channels")
|
||||
}
|
||||
|
||||
for _, channel := range *channels {
|
||||
if channel.Name == s.LbryChannelName {
|
||||
return nil
|
||||
}
|
||||
}
|
||||
|
||||
resolveResp, err := s.daemon.Resolve(s.LbryChannelName)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
channelNotFound := (*resolveResp)[s.LbryChannelName].Error == nil || strings.Contains(*((*resolveResp)[s.LbryChannelName].Error), "cannot be resolved")
|
||||
|
||||
if !channelNotFound {
|
||||
return errors.New("Channel exists and we don't own it. Pick another channel.")
|
||||
}
|
||||
|
||||
_, err = s.daemon.ChannelNew(s.LbryChannelName, 0.01)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
// niko's code says "unfortunately the queues in the daemon are not yet merged so we must give it some time for the channel to go through"
|
||||
wait := 15 * time.Second
|
||||
log.Println("Waiting " + wait.String() + " for channel claim to go through")
|
||||
time.Sleep(wait)
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
func (s *Sync) enqueueVideosFromChannel(channelID string, videoChan *chan video, stopEnqueuing *chan struct{}) error {
|
||||
client := &http.Client{
|
||||
Transport: &transport.APIKey{Key: s.YoutubeAPIKey},
|
||||
}
|
||||
|
||||
service, err := youtube.New(client)
|
||||
if err != nil {
|
||||
return errors.WrapPrefix(err, "error creating YouTube service", 0)
|
||||
}
|
||||
|
||||
response, err := service.Channels.List("contentDetails").Id(channelID).Do()
|
||||
if err != nil {
|
||||
return errors.WrapPrefix(err, "error getting channels", 0)
|
||||
}
|
||||
|
||||
if len(response.Items) < 1 {
|
||||
return errors.New("youtube channel not found")
|
||||
}
|
||||
|
||||
if response.Items[0].ContentDetails.RelatedPlaylists == nil {
|
||||
return errors.New("no related playlists")
|
||||
}
|
||||
|
||||
playlistID := response.Items[0].ContentDetails.RelatedPlaylists.Uploads
|
||||
if playlistID == "" {
|
||||
return errors.New("no channel playlist")
|
||||
}
|
||||
|
||||
videos := []video{}
|
||||
|
||||
nextPageToken := ""
|
||||
for {
|
||||
req := service.PlaylistItems.List("snippet").
|
||||
PlaylistId(playlistID).
|
||||
MaxResults(50).
|
||||
PageToken(nextPageToken)
|
||||
|
||||
playlistResponse, err := req.Do()
|
||||
if err != nil {
|
||||
return errors.WrapPrefix(err, "error getting playlist items", 0)
|
||||
}
|
||||
|
||||
if len(playlistResponse.Items) < 1 {
|
||||
return errors.New("playlist items not found")
|
||||
}
|
||||
|
||||
for _, item := range playlistResponse.Items {
|
||||
// todo: there's thumbnail info here. why did we need lambda???
|
||||
publishedAt, err := time.Parse(time.RFC3339Nano, item.Snippet.PublishedAt)
|
||||
if err != nil {
|
||||
return errors.WrapPrefix(err, "failed to parse time", 0)
|
||||
}
|
||||
|
||||
// normally we'd send the video into the channel here, but youtube api doesn't have sorting
|
||||
// so we have to get ALL the videos, then sort them, then send them in
|
||||
videos = append(videos, video{
|
||||
id: item.Snippet.ResourceId.VideoId,
|
||||
channelID: channelID,
|
||||
title: item.Snippet.Title,
|
||||
description: item.Snippet.Description,
|
||||
channelTitle: item.Snippet.ChannelTitle,
|
||||
playlistPosition: item.Snippet.Position,
|
||||
publishedAt: publishedAt,
|
||||
dir: s.videoDirectory,
|
||||
})
|
||||
}
|
||||
|
||||
log.Infoln("Got info for " + strconv.Itoa(len(videos)) + " videos from youtube API")
|
||||
|
||||
nextPageToken = playlistResponse.NextPageToken
|
||||
if nextPageToken == "" {
|
||||
break
|
||||
}
|
||||
}
|
||||
|
||||
sort.Sort(byPublishedAt(videos))
|
||||
//or sort.Sort(sort.Reverse(byPlaylistPosition(videos)))
|
||||
|
||||
for _, v := range videos {
|
||||
select {
|
||||
case *videoChan <- v:
|
||||
case <-*stopEnqueuing:
|
||||
return nil
|
||||
}
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
func (s *Sync) processVideo(v video) error {
|
||||
log.Println("========================================")
|
||||
log.Println("Processing " + v.id + " (" + strconv.Itoa(int(v.playlistPosition)) + " in channel)")
|
||||
|
||||
conn := s.redisPool.Get()
|
||||
defer conn.Close()
|
||||
|
||||
alreadyPublished, err := redis.String(conn.Do("HGET", redisHashKey, v.id))
|
||||
if err != nil && err != redis.ErrNil {
|
||||
return errors.WrapPrefix(err, "redis error", 0)
|
||||
|
||||
}
|
||||
if alreadyPublished == redisSyncedVal {
|
||||
log.Println(v.id + " already published")
|
||||
return nil
|
||||
}
|
||||
|
||||
//download and thumbnail can be done in parallel
|
||||
err = downloadVideo(v)
|
||||
if err != nil {
|
||||
return errors.WrapPrefix(err, "download error", 0)
|
||||
}
|
||||
|
||||
err = triggerThumbnailSave(v.id)
|
||||
if err != nil {
|
||||
return errors.WrapPrefix(err, "thumbnail error", 0)
|
||||
}
|
||||
|
||||
err = s.publish(v, conn)
|
||||
if err != nil {
|
||||
return errors.WrapPrefix(err, "publish error", 0)
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
func downloadVideo(v video) error {
|
||||
verbose := false
|
||||
videoPath := v.getFilename()
|
||||
|
||||
_, err := os.Stat(videoPath)
|
||||
if err != nil && !os.IsNotExist(err) {
|
||||
return err
|
||||
} else if err == nil {
|
||||
log.Println(v.id + " already exists at " + videoPath)
|
||||
return nil
|
||||
}
|
||||
|
||||
downloader := ytdl.NewYoutube(verbose)
|
||||
err = downloader.DecodeURL("https://www.youtube.com/watch?v=" + v.id)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
err = downloader.StartDownload(videoPath)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
log.Debugln("Downloaded " + v.id)
|
||||
return nil
|
||||
}
|
||||
|
||||
func triggerThumbnailSave(videoID string) error {
|
||||
client := &http.Client{Timeout: 30 * time.Second}
|
||||
|
||||
params, err := json.Marshal(map[string]string{"videoid": videoID})
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
request, err := http.NewRequest(http.MethodPut, "https://jgp4g1qoud.execute-api.us-east-1.amazonaws.com/prod/thumbnail", bytes.NewBuffer(params))
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
response, err := client.Do(request)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
defer response.Body.Close()
|
||||
|
||||
contents, err := ioutil.ReadAll(response.Body)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
var decoded struct {
|
||||
error int `json:"error"`
|
||||
url string `json:"url,omitempty"`
|
||||
message string `json:"message,omitempty"`
|
||||
}
|
||||
err = json.Unmarshal(contents, &decoded)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
if decoded.error != 0 {
|
||||
return errors.New("error creating thumbnail: " + decoded.message)
|
||||
}
|
||||
|
||||
log.Debugln("Created thumbnail for " + videoID)
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
func strPtr(s string) *string { return &s }
|
||||
|
||||
func (s *Sync) publish(v video, conn redis.Conn) error {
|
||||
options := jsonrpc.PublishOptions{
|
||||
Title: &v.title,
|
||||
Author: &v.channelTitle,
|
||||
Description: strPtr(v.getAbbrevDescription() + "\nhttps://www.youtube.com/watch?v=" + v.id),
|
||||
Language: strPtr("en"),
|
||||
ClaimAddress: &s.claimAddress,
|
||||
Thumbnail: strPtr("http://berk.ninja/thumbnails/" + v.id),
|
||||
License: strPtr("Copyrighted (contact author)"),
|
||||
}
|
||||
if s.LbryChannelName != "" {
|
||||
options.ChannelName = &s.LbryChannelName
|
||||
}
|
||||
|
||||
_, err := s.daemon.Publish(v.getClaimName(), v.getFilename(), 0.01, options)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
_, err = redis.Bool(conn.Do("HSET", redisHashKey, v.id, redisSyncedVal))
|
||||
if err != nil {
|
||||
return errors.New("redis error: " + err.Error())
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
Loading…
Reference in a new issue