f2610d2160
Name and value in each header are 0-terminated, so additional 2 bytes should be allocated for them. There were several attempts to add these 2 bytes to headers in language modules, but some modules weren't updated. Also, adding these 2 bytes is specific to the implementation which may be changed later, so extending this mechanics to modules may cause errors.
88 lines
1.6 KiB
Go
88 lines
1.6 KiB
Go
/*
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* Copyright (C) Max Romanov
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* Copyright (C) NGINX, Inc.
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*/
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package unit
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/*
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#include "nxt_cgo_lib.h"
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*/
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import "C"
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import (
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"net/http"
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)
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type response struct {
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header http.Header
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headerSent bool
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req *http.Request
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c_req C.uintptr_t
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}
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func new_response(c_req C.uintptr_t, req *http.Request) *response {
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resp := &response{
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header: http.Header{},
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req: req,
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c_req: c_req,
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}
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return resp
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}
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func (r *response) Header() http.Header {
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return r.header
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}
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func (r *response) Write(p []byte) (n int, err error) {
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if !r.headerSent {
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r.WriteHeader(http.StatusOK)
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}
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res := C.nxt_cgo_response_write(r.c_req, buf_ref(p), C.uint32_t(len(p)))
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return int(res), nil
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}
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func (r *response) WriteHeader(code int) {
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if r.headerSent {
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// Note: explicitly using Stderr, as Stdout is our HTTP output.
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nxt_go_warn("multiple response.WriteHeader calls")
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return
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}
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r.headerSent = true
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// Set a default Content-Type
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if _, hasType := r.header["Content-Type"]; !hasType {
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r.header.Add("Content-Type", "text/html; charset=utf-8")
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}
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fields := 0
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fields_size := 0
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for k, vv := range r.header {
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for _, v := range vv {
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fields++
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fields_size += len(k) + len(v)
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}
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}
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C.nxt_cgo_response_create(r.c_req, C.int(code), C.int(fields),
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C.uint32_t(fields_size))
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for k, vv := range r.header {
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for _, v := range vv {
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C.nxt_cgo_response_add_field(r.c_req, str_ref(k), C.uint8_t(len(k)),
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str_ref(v), C.uint32_t(len(v)))
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}
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}
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C.nxt_cgo_response_send(r.c_req)
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}
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func (r *response) Flush() {
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if !r.headerSent {
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r.WriteHeader(http.StatusOK)
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}
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}
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