47 lines
1.2 KiB
Go
47 lines
1.2 KiB
Go
// Copyright 2017 Frédéric Guillot. All rights reserved.
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// Use of this source code is governed by the Apache 2.0
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// license that can be found in the LICENSE file.
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package rewrite
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import (
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"regexp"
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"strings"
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"github.com/PuerkitoBio/goquery"
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)
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var rewriteRules = []func(string, string) string{
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func(url, content string) string {
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re := regexp.MustCompile(`youtube\.com/watch\?v=(.*)`)
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matches := re.FindStringSubmatch(url)
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if len(matches) == 2 {
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video := `<iframe width="650" height="350" frameborder="0" src="https://www.youtube-nocookie.com/embed/` + matches[1] + `" allowfullscreen></iframe>`
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return video + "<p>" + content + "</p>"
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}
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return content
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},
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func(url, content string) string {
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if strings.HasPrefix(url, "https://xkcd.com") {
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doc, err := goquery.NewDocumentFromReader(strings.NewReader(content))
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if err != nil {
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return content
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}
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imgTag := doc.Find("img").First()
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if titleAttr, found := imgTag.Attr("title"); found {
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return content + `<blockquote cite="` + url + `">` + titleAttr + "</blockquote>"
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}
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}
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return content
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},
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}
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func Rewriter(url, content string) string {
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for _, rewriteRule := range rewriteRules {
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content = rewriteRule(url, content)
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}
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return content
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}
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