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parser_twitter.go
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/
parser_twitter.go
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package linkpreview
import "strings"
func (ctx *ParserContext) parseTwitterMeta() {
if !ctx.Config.ParseTwitterMeta {
return
}
twitterMeta := &TwitterMeta{}
for _, tag := range ctx.MetaTags {
tagName := strOr(tag.Name, tag.Property)
if !strings.HasPrefix(tagName, "twitter:") {
continue
}
tagName = tagName[len("twitter:"):]
tagContent := strOr(tag.Content, tag.Value)
switch tagName {
case "url":
twitterMeta.URL = tagContent
case "card":
twitterMeta.Card = tagContent
case "site":
twitterMeta.Site = tagContent
case "site:id":
twitterMeta.SiteID = tagContent
case "creator":
twitterMeta.Creator = tagContent
case "creator:id":
twitterMeta.CreatorID = tagContent
case "title":
twitterMeta.Title = tagContent
case "description":
twitterMeta.Description = tagContent
case "image":
twitterMeta.Image = tagContent
case "image:alt":
twitterMeta.ImageAlt = tagContent
default:
twitterMeta.Others = append(twitterMeta.Others, tag)
}
}
ctx.Result.TwitterMeta = twitterMeta
}