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authorGravatar Romain de Laage <romain.delaage@rdelaage.ovh> 2023-02-25 09:36:19 +0100
committerGravatar Frédéric Guillot <f@miniflux.net> 2023-02-25 15:57:59 -0800
commit2c2700a31d7349f67016a3786125597f9ee38c56 (patch)
tree9a9cef0c5d6a17946be70e709cf1d0349d05bc77 /proxy/image_proxy.go
parent8f9ccc6540be9d637b812985936f064bada8fcf3 (diff)
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v2-2c2700a31d7349f67016a3786125597f9ee38c56.tar.zst
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Proxy support for several media types
closes #615 closes #635
Diffstat (limited to 'proxy/image_proxy.go')
-rw-r--r--proxy/image_proxy.go84
1 files changed, 0 insertions, 84 deletions
diff --git a/proxy/image_proxy.go b/proxy/image_proxy.go
deleted file mode 100644
index 581a824e..00000000
--- a/proxy/image_proxy.go
+++ /dev/null
@@ -1,84 +0,0 @@
-// Copyright 2020 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 proxy // import "miniflux.app/proxy"
-
-import (
- "strings"
-
- "miniflux.app/config"
- "miniflux.app/reader/sanitizer"
- "miniflux.app/url"
-
- "github.com/PuerkitoBio/goquery"
- "github.com/gorilla/mux"
-)
-
-type urlProxyRewriter func(router *mux.Router, url string) string
-
-// ImageProxyRewriter replaces image URLs with internal proxy URLs.
-func ImageProxyRewriter(router *mux.Router, data string) string {
- return genericImageProxyRewriter(router, ProxifyURL, data)
-}
-
-// AbsoluteImageProxyRewriter do the same as ImageProxyRewriter except it uses absolute URLs.
-func AbsoluteImageProxyRewriter(router *mux.Router, host, data string) string {
- proxifyFunction := func(router *mux.Router, url string) string {
- return AbsoluteProxifyURL(router, host, url)
- }
- return genericImageProxyRewriter(router, proxifyFunction, data)
-}
-
-func genericImageProxyRewriter(router *mux.Router, proxifyFunction urlProxyRewriter, data string) string {
- proxyImages := config.Opts.ProxyImages()
- if proxyImages == "none" {
- return data
- }
-
- doc, err := goquery.NewDocumentFromReader(strings.NewReader(data))
- if err != nil {
- return data
- }
-
- doc.Find("img").Each(func(i int, img *goquery.Selection) {
- if srcAttrValue, ok := img.Attr("src"); ok {
- if !isDataURL(srcAttrValue) && (proxyImages == "all" || !url.IsHTTPS(srcAttrValue)) {
- img.SetAttr("src", proxifyFunction(router, srcAttrValue))
- }
- }
-
- if srcsetAttrValue, ok := img.Attr("srcset"); ok {
- proxifySourceSet(img, router, proxifyFunction, proxyImages, srcsetAttrValue)
- }
- })
-
- doc.Find("picture source").Each(func(i int, sourceElement *goquery.Selection) {
- if srcsetAttrValue, ok := sourceElement.Attr("srcset"); ok {
- proxifySourceSet(sourceElement, router, proxifyFunction, proxyImages, srcsetAttrValue)
- }
- })
-
- output, err := doc.Find("body").First().Html()
- if err != nil {
- return data
- }
-
- return output
-}
-
-func proxifySourceSet(element *goquery.Selection, router *mux.Router, proxifyFunction urlProxyRewriter, proxyImages, srcsetAttrValue string) {
- imageCandidates := sanitizer.ParseSrcSetAttribute(srcsetAttrValue)
-
- for _, imageCandidate := range imageCandidates {
- if !isDataURL(imageCandidate.ImageURL) && (proxyImages == "all" || !url.IsHTTPS(imageCandidate.ImageURL)) {
- imageCandidate.ImageURL = proxifyFunction(router, imageCandidate.ImageURL)
- }
- }
-
- element.SetAttr("srcset", imageCandidates.String())
-}
-
-func isDataURL(s string) bool {
- return strings.HasPrefix(s, "data:")
-}