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package main
import (
"bytes"
"fmt"
"html/template"
appbsky "github.com/bluesky-social/indigo/api/bsky"
"github.com/bluesky-social/indigo/atproto/syntax"
)
func (srv *Server) postEmbedHTML(postView *appbsky.FeedDefs_PostView) (string, error) {
// ensure that there isn't an injection from the URI
aturi, err := syntax.ParseATURI(postView.Uri)
if err != nil {
log.Error("bad AT-URI in reponse", "aturi", aturi, "err", err)
return "", err
}
post, ok := postView.Record.Val.(*appbsky.FeedPost)
if !ok {
log.Error("bad post record value", "err", err)
return "", err
}
const tpl = `<blockquote class="bluesky-embed" data-bluesky-uri="{{ .PostURI }}" data-bluesky-cid="{{ .PostCID }}"><p{{ if .PostLang }} lang="{{ .PostLang }}"{{ end }}>{{ .PostText }}</p>— <a href="{{ .ProfileURL }}">{{ .PostAuthor }}</a> <a href="{{ .PostURL }}">{{ .PostIndexedAt }}</a></blockquote><script async src="{{ .WidgetURL }}" charset="utf-8"></script>`
t, err := template.New("snippet").Parse(tpl)
if err != nil {
log.Error("template parse error", "err", err)
return "", err
}
sortAt := postView.IndexedAt
createdAt, err := syntax.ParseDatetime(post.CreatedAt)
if nil == err && createdAt.String() < sortAt {
sortAt = createdAt.String()
}
var lang string
if len(post.Langs) > 0 {
lang = post.Langs[0]
}
var authorName string
if postView.Author.DisplayName != nil {
authorName = fmt.Sprintf("%s (@%s)", *postView.Author.DisplayName, postView.Author.Handle)
} else {
authorName = fmt.Sprintf("@%s", postView.Author.Handle)
}
data := struct {
PostURI template.URL
PostCID string
PostLang string
PostText string
PostAuthor string
PostIndexedAt string
ProfileURL template.URL
PostURL template.URL
WidgetURL template.URL
}{
PostURI: template.URL(postView.Uri),
PostCID: postView.Cid,
PostLang: lang,
PostText: post.Text,
PostAuthor: authorName,
PostIndexedAt: sortAt,
ProfileURL: template.URL(fmt.Sprintf("https://bsky.app/profile/%s?ref_src=embed", aturi.Authority())),
PostURL: template.URL(fmt.Sprintf("https://bsky.app/profile/%s/post/%s?ref_src=embed", aturi.Authority(), aturi.RecordKey())),
WidgetURL: template.URL("https://embed.bsky.app/static/embed.js"),
}
var buf bytes.Buffer
err = t.Execute(&buf, data)
if err != nil {
log.Error("template parse error", "err", err)
return "", err
}
return buf.String(), nil
}
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