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use http.ParseTime to handle If-Modified-Since

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WeidiDeng 2025-02-08 09:38:31 +08:00
parent da4b321381
commit b2385bac2d
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1 changed files with 2 additions and 1 deletions
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3
modules/caddyhttp/fileserver/browse.go
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@ -130,7 +130,8 @@ func (fsrv *FileServer) serveBrowse(fileSystem fs.FS, root, dirPath string, w ht
// speed up browser/client experience and caching by supporting If-Modified-Since
if ifModSinceStr := r.Header.Get("If-Modified-Since"); ifModSinceStr != "" {
ifModSince, err := time.ParseInLocation(http.TimeFormat, ifModSinceStr, time.Local)
// https://datatracker.ietf.org/doc/html/rfc7231#section-7.1.1.1
ifModSince, err := http.ParseTime(ifModSinceStr)
lastModTrunc := listing.lastModified.Truncate(time.Second)
if err == nil && (lastModTrunc.Equal(ifModSince) || lastModTrunc.Before(ifModSince)) {
w.WriteHeader(http.StatusNotModified)