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If WriteHeader is not called explicitly, the first call to Write

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will trigger an implicit WriteHeader(http.StatusOK).
WriteHeader: Only one header may be written. Go does not currently!
This commit is contained in:
Konstantin Lebedev 2021-03-15 21:22:59 +05:00
parent 46b9f5cff4
commit 90510e3137
3 changed files with 6 additions and 12 deletions
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8
weed/server/common.go
View file

@ -234,12 +234,12 @@ func adjustHeaderContentDisposition(w http.ResponseWriter, r *http.Request, file
}
}
func processRangeRequest(r *http.Request, w http.ResponseWriter, totalSize int64, mimeType string, writeFn func(writer io.Writer, offset int64, size int64, httpStatusCode int) error) {
func processRangeRequest(r *http.Request, w http.ResponseWriter, totalSize int64, mimeType string, writeFn func(writer io.Writer, offset int64, size int64) error) {
rangeReq := r.Header.Get("Range")
if rangeReq == "" {
w.Header().Set("Content-Length", strconv.FormatInt(totalSize, 10))
if err := writeFn(w, 0, totalSize, 0); err != nil {
if err := writeFn(w, 0, totalSize); err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
@ -279,7 +279,7 @@ func processRangeRequest(r *http.Request, w http.ResponseWriter, totalSize int64
w.Header().Set("Content-Length", strconv.FormatInt(ra.length, 10))
w.Header().Set("Content-Range", ra.contentRange(totalSize))
err = writeFn(w, ra.start, ra.length, http.StatusPartialContent)
err = writeFn(w, ra.start, ra.length)
if err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
return
@ -307,7 +307,7 @@ func processRangeRequest(r *http.Request, w http.ResponseWriter, totalSize int64
pw.CloseWithError(e)
return
}
if e = writeFn(part, ra.start, ra.length, 0); e != nil {
if e = writeFn(part, ra.start, ra.length); e != nil {
pw.CloseWithError(e)
return
}

5
weed/server/filer_server_handlers_read.go
View file

@ -150,10 +150,7 @@ func (fs *FilerServer) GetOrHeadHandler(w http.ResponseWriter, r *http.Request,
}
}
processRangeRequest(r, w, totalSize, mimeType, func(writer io.Writer, offset int64, size int64, httpStatusCode int) error {
if httpStatusCode != 0 {
w.WriteHeader(httpStatusCode)
}
processRangeRequest(r, w, totalSize, mimeType, func(writer io.Writer, offset int64, size int64) error {
if offset+size <= int64(len(entry.Content)) {
_, err := writer.Write(entry.Content[offset : offset+size])
if err != nil {

5
weed/server/volume_server_handlers_read.go
View file

@ -261,13 +261,10 @@ func writeResponseContent(filename, mimeType string, rs io.ReadSeeker, w http.Re
return nil
}
processRangeRequest(r, w, totalSize, mimeType, func(writer io.Writer, offset int64, size int64, httpStatusCode int) error {
processRangeRequest(r, w, totalSize, mimeType, func(writer io.Writer, offset int64, size int64) error {
if _, e = rs.Seek(offset, 0); e != nil {
return e
}
if httpStatusCode != 0 {
w.WriteHeader(httpStatusCode)
}
_, e = io.CopyN(writer, rs, size)
return e
})