miniflux-v2/server/ui/filter/image_proxy_filter.go

36 lines
958 B
Go

// Copyright 2017 Frédéric Guillot. All rights reserved.
// Use of this source code is governed by the Apache 2.0
// license that can be found in the LICENSE file.
package filter
import (
"encoding/base64"
"github.com/miniflux/miniflux2/reader/url"
"github.com/miniflux/miniflux2/server/route"
"strings"
"github.com/PuerkitoBio/goquery"
"github.com/gorilla/mux"
)
// ImageProxyFilter rewrites image tag URLs without HTTPS to local proxy URL
func ImageProxyFilter(r *mux.Router, data string) string {
doc, err := goquery.NewDocumentFromReader(strings.NewReader(data))
if err != nil {
return data
}
doc.Find("img").Each(func(i int, img *goquery.Selection) {
if srcAttr, ok := img.Attr("src"); ok {
if !url.IsHTTPS(srcAttr) {
path := route.GetRoute(r, "proxy", "encodedURL", base64.StdEncoding.EncodeToString([]byte(srcAttr)))
img.SetAttr("src", path)
}
}
})
output, _ := doc.Find("body").First().Html()
return output
}