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bskyweb: extract gallery media for SEO (#10813)

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This commit is contained in:
Michael Black
2026-06-09 11:10:33 -05:00
committed by GitHub
parent fb4133cdc7
commit be30947089
5 changed files with 226 additions and 6 deletions
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bskyweb/cmd/bskyweb/jsonld.go
+34 -3
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@@ -136,9 +136,9 @@ func bskyProfileURL(handle string) string {
return fmt.Sprintf("https://bsky.app/profile/%s", handle)
}
// extractPostMedia returns thumbnail URLs for the post's image or video
// embed, byte-identical to what we put in og:image. Callers derive
// thumbnailUrl from urls[0].
// extractPostMedia returns thumbnail URLs for the post's image, gallery,
// or video embed, byte-identical to what we put in og:image. Callers
// derive thumbnailUrl from urls[0].
func extractPostMedia(pv *appbsky.FeedDefs_PostView, embedHidden bool) []string {
if pv == nil || pv.Embed == nil || embedHidden {
return nil
@@ -147,6 +147,9 @@ func extractPostMedia(pv *appbsky.FeedDefs_PostView, embedHidden bool) []string
if pv.Embed.EmbedImages_View != nil {
return imageThumbs(pv.Embed.EmbedImages_View.Images)
}
if pv.Embed.EmbedGallery_View != nil {
return galleryThumbs(pv.Embed.EmbedGallery_View.Items)
}
if pv.Embed.EmbedVideo_View != nil && pv.Embed.EmbedVideo_View.Thumbnail != nil {
return []string{*pv.Embed.EmbedVideo_View.Thumbnail}
}
@@ -155,6 +158,9 @@ func extractPostMedia(pv *appbsky.FeedDefs_PostView, embedHidden bool) []string
if media.EmbedImages_View != nil {
return imageThumbs(media.EmbedImages_View.Images)
}
if media.EmbedGallery_View != nil {
return galleryThumbs(media.EmbedGallery_View.Items)
}
if media.EmbedVideo_View != nil && media.EmbedVideo_View.Thumbnail != nil {
return []string{*media.EmbedVideo_View.Thumbnail}
}
@@ -174,6 +180,31 @@ func imageThumbs(images []*appbsky.EmbedImages_ViewImage) []string {
return urls
}
// galleryThumbs returns the thumbnail URLs of image items in a gallery
// embed, or nil if empty. Items_Elem is a union; non-image variants and
// nil entries are skipped so future gallery item types don't break SEO
// extraction. Empty Thumbnail strings are also skipped to avoid emitting
// <meta property="og:image" content=""> if the appview ever returns one.
func galleryThumbs(items []*appbsky.EmbedGallery_View_Items_Elem) []string {
if len(items) == 0 {
return nil
}
urls := make([]string, 0, len(items))
for _, item := range items {
if item == nil || item.EmbedGallery_ViewImage == nil {
continue
}
if item.EmbedGallery_ViewImage.Thumbnail == "" {
continue
}
urls = append(urls, item.EmbedGallery_ViewImage.Thumbnail)
}
if len(urls) == 0 {
return nil
}
return urls
}
// extractQuotedPostURL returns the canonical URL of a quoted post, or ""
// if the embed is blocked / not-found / detached / a non-post record.
func extractQuotedPostURL(pv *appbsky.FeedDefs_PostView) string {