diff options
Diffstat (limited to 'src/net/http/cgi/child.go')
-rw-r--r-- | src/net/http/cgi/child.go | 36 |
1 files changed, 25 insertions, 11 deletions
diff --git a/src/net/http/cgi/child.go b/src/net/http/cgi/child.go index 9474175f17..61de6165f6 100644 --- a/src/net/http/cgi/child.go +++ b/src/net/http/cgi/child.go @@ -163,10 +163,12 @@ func Serve(handler http.Handler) error { } type response struct { - req *http.Request - header http.Header - bufw *bufio.Writer - headerSent bool + req *http.Request + header http.Header + code int + wroteHeader bool + wroteCGIHeader bool + bufw *bufio.Writer } func (r *response) Flush() { @@ -178,26 +180,38 @@ func (r *response) Header() http.Header { } func (r *response) Write(p []byte) (n int, err error) { - if !r.headerSent { + if !r.wroteHeader { r.WriteHeader(http.StatusOK) } + if !r.wroteCGIHeader { + r.writeCGIHeader(p) + } return r.bufw.Write(p) } func (r *response) WriteHeader(code int) { - if r.headerSent { + if r.wroteHeader { // Note: explicitly using Stderr, as Stdout is our HTTP output. fmt.Fprintf(os.Stderr, "CGI attempted to write header twice on request for %s", r.req.URL) return } - r.headerSent = true - fmt.Fprintf(r.bufw, "Status: %d %s\r\n", code, http.StatusText(code)) + r.wroteHeader = true + r.code = code +} - // Set a default Content-Type +// writeCGIHeader finalizes the header sent to the client and writes it to the output. +// p is not written by writeHeader, but is the first chunk of the body +// that will be written. It is sniffed for a Content-Type if none is +// set explicitly. +func (r *response) writeCGIHeader(p []byte) { + if r.wroteCGIHeader { + return + } + r.wroteCGIHeader = true + fmt.Fprintf(r.bufw, "Status: %d %s\r\n", r.code, http.StatusText(r.code)) if _, hasType := r.header["Content-Type"]; !hasType { - r.header.Add("Content-Type", "text/html; charset=utf-8") + r.header.Set("Content-Type", http.DetectContentType(p)) } - r.header.Write(r.bufw) r.bufw.WriteString("\r\n") r.bufw.Flush() |