mirror of https://github.com/miniflux/v2.git
41 lines
1.0 KiB
Go
41 lines
1.0 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 filter
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import (
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"encoding/base64"
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"strings"
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"github.com/miniflux/miniflux/server/route"
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"github.com/miniflux/miniflux/url"
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"github.com/PuerkitoBio/goquery"
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"github.com/gorilla/mux"
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)
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// ImageProxyFilter rewrites image tag URLs without HTTPS to local proxy URL
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func ImageProxyFilter(router *mux.Router, data string) string {
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doc, err := goquery.NewDocumentFromReader(strings.NewReader(data))
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if err != nil {
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return data
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}
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doc.Find("img").Each(func(i int, img *goquery.Selection) {
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if srcAttr, ok := img.Attr("src"); ok {
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if !url.IsHTTPS(srcAttr) {
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img.SetAttr("src", Proxify(router, srcAttr))
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}
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}
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})
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output, _ := doc.Find("body").First().Html()
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return output
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}
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// Proxify returns a proxified link.
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func Proxify(router *mux.Router, link string) string {
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return route.Path(router, "proxy", "encodedURL", base64.StdEncoding.EncodeToString([]byte(link)))
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}
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