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Fix regression in AbsoluteProxifyURL()

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Regression introduced in commit 66b8483791

PR #2499
This commit is contained in:
Frédéric Guillot 2024-03-18 20:18:09 -07:00
parent fa9697b972
commit a15cdb1655
3 changed files with 113 additions and 18 deletions
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54
internal/proxy/proxy.go
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@ -7,6 +7,7 @@ import (
"crypto/hmac"
"crypto/sha256"
"encoding/base64"
"log/slog"
"net/url"
"path"
@ -18,35 +19,54 @@ import (
)
// ProxifyURL generates a relative URL for a proxified resource.
func ProxifyURL(router *mux.Router, link string) string {
if link == "" {
func ProxifyURL(router *mux.Router, mediaURL string) string {
if mediaURL == "" {
return ""
}
if proxyImageUrl := config.Opts.ProxyUrl(); proxyImageUrl != "" {
proxyUrl, err := url.Parse(proxyImageUrl)
if err != nil {
return ""
}
proxyUrl.Path = path.Join(proxyUrl.Path, base64.URLEncoding.EncodeToString([]byte(link)))
return proxyUrl.String()
if customProxyURL := config.Opts.ProxyUrl(); customProxyURL != "" {
return ProxifyURLWithCustomProxy(mediaURL, customProxyURL)
}
mac := hmac.New(sha256.New, config.Opts.ProxyPrivateKey())
mac.Write([]byte(link))
mac.Write([]byte(mediaURL))
digest := mac.Sum(nil)
return route.Path(router, "proxy", "encodedDigest", base64.URLEncoding.EncodeToString(digest), "encodedURL", base64.URLEncoding.EncodeToString([]byte(link)))
return route.Path(router, "proxy", "encodedDigest", base64.URLEncoding.EncodeToString(digest), "encodedURL", base64.URLEncoding.EncodeToString([]byte(mediaURL)))
}
// AbsoluteProxifyURL generates an absolute URL for a proxified resource.
func AbsoluteProxifyURL(router *mux.Router, host, link string) string {
proxifiedUrl := ProxifyURL(router, link)
func AbsoluteProxifyURL(router *mux.Router, host, mediaURL string) string {
if mediaURL == "" {
return ""
}
if config.Opts.ProxyUrl() == "" {
return proxifiedUrl
if customProxyURL := config.Opts.ProxyUrl(); customProxyURL != "" {
return ProxifyURLWithCustomProxy(mediaURL, customProxyURL)
}
proxifiedUrl := ProxifyURL(router, mediaURL)
scheme := "http"
if config.Opts.HTTPS {
return "https://" + host + proxifiedUrl
scheme = "https"
}
return "http://" + host + proxifiedUrl
return scheme + "://" + host + proxifiedUrl
}
func ProxifyURLWithCustomProxy(mediaURL, customProxyURL string) string {
if customProxyURL == "" {
return mediaURL
}
proxyUrl, err := url.Parse(customProxyURL)
if err != nil {
slog.Error("Incorrect custom media proxy URL",
slog.String("custom_proxy_url", customProxyURL),
slog.Any("error", err),
)
return mediaURL
}
proxyUrl.Path = path.Join(proxyUrl.Path, base64.URLEncoding.EncodeToString([]byte(mediaURL)))
return proxyUrl.String()
}