115 lines
2.5 KiB
Go
115 lines
2.5 KiB
Go
package thumbs
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import (
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"io"
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"net/http"
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"os"
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"strings"
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"github.com/lbryio/ytsync/v5/downloader/ytdl"
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"github.com/lbryio/lbry.go/v2/extras/errors"
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"github.com/aws/aws-sdk-go/aws"
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"github.com/aws/aws-sdk-go/aws/session"
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"github.com/aws/aws-sdk-go/service/s3/s3manager"
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log "github.com/sirupsen/logrus"
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)
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type thumbnailUploader struct {
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name string
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originalUrl string
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mirroredUrl string
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s3Config aws.Config
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}
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const thumbnailPath = "/tmp/ytsync_thumbnails/"
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const ThumbnailEndpoint = "https://thumbnails.lbry.com/"
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func (u *thumbnailUploader) downloadThumbnail() error {
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_ = os.Mkdir(thumbnailPath, 0777)
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img, err := os.Create("/tmp/ytsync_thumbnails/" + u.name)
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if err != nil {
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return errors.Err(err)
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}
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defer img.Close()
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if strings.HasPrefix(u.originalUrl, "//") {
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u.originalUrl = "https:" + u.originalUrl
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}
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resp, err := http.Get(u.originalUrl)
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if err != nil {
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return errors.Err(err)
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}
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defer resp.Body.Close()
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_, err = io.Copy(img, resp.Body)
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if err != nil {
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return errors.Err(err)
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}
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return nil
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}
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func (u *thumbnailUploader) uploadThumbnail() error {
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key := &u.name
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thumb, err := os.Open("/tmp/ytsync_thumbnails/" + u.name)
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if err != nil {
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return errors.Err(err)
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}
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defer thumb.Close()
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s3Session, err := session.NewSession(&u.s3Config)
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if err != nil {
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return errors.Err(err)
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}
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uploader := s3manager.NewUploader(s3Session)
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_, err = uploader.Upload(&s3manager.UploadInput{
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Bucket: aws.String("thumbnails.lbry.com"),
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Key: key,
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Body: thumb,
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ACL: aws.String("public-read"),
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ContentType: aws.String("image/jpeg"),
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CacheControl: aws.String("public, max-age=2592000"),
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})
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u.mirroredUrl = ThumbnailEndpoint + u.name
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return errors.Err(err)
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}
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func (u *thumbnailUploader) deleteTmpFile() {
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err := os.Remove("/tmp/ytsync_thumbnails/" + u.name)
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if err != nil {
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log.Infof("failed to delete local thumbnail file: %s", err.Error())
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}
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}
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func MirrorThumbnail(url string, name string, s3Config aws.Config) (string, error) {
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tu := thumbnailUploader{
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originalUrl: url,
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name: name,
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s3Config: s3Config,
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}
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err := tu.downloadThumbnail()
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if err != nil {
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return "", err
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}
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defer tu.deleteTmpFile()
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err = tu.uploadThumbnail()
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if err != nil {
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return "", err
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}
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return tu.mirroredUrl, nil
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}
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func GetBestThumbnail(thumbnails []ytdl.Thumbnail) *ytdl.Thumbnail {
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var bestWidth *ytdl.Thumbnail
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for _, thumbnail := range thumbnails {
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if bestWidth == nil {
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bestWidth = &thumbnail
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} else if bestWidth.Width < thumbnail.Width {
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bestWidth = &thumbnail
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}
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}
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return bestWidth
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}
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