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Diffstat (limited to 'src/pkg/net/http/cgi/child.go')
-rw-r--r--src/pkg/net/http/cgi/child.go206
1 files changed, 0 insertions, 206 deletions
diff --git a/src/pkg/net/http/cgi/child.go b/src/pkg/net/http/cgi/child.go
deleted file mode 100644
index 45fc2e57c..000000000
--- a/src/pkg/net/http/cgi/child.go
+++ /dev/null
@@ -1,206 +0,0 @@
-// Copyright 2011 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// This file implements CGI from the perspective of a child
-// process.
-
-package cgi
-
-import (
- "bufio"
- "crypto/tls"
- "errors"
- "fmt"
- "io"
- "io/ioutil"
- "net"
- "net/http"
- "net/url"
- "os"
- "strconv"
- "strings"
-)
-
-// Request returns the HTTP request as represented in the current
-// environment. This assumes the current program is being run
-// by a web server in a CGI environment.
-// The returned Request's Body is populated, if applicable.
-func Request() (*http.Request, error) {
- r, err := RequestFromMap(envMap(os.Environ()))
- if err != nil {
- return nil, err
- }
- if r.ContentLength > 0 {
- r.Body = ioutil.NopCloser(io.LimitReader(os.Stdin, r.ContentLength))
- }
- return r, nil
-}
-
-func envMap(env []string) map[string]string {
- m := make(map[string]string)
- for _, kv := range env {
- if idx := strings.Index(kv, "="); idx != -1 {
- m[kv[:idx]] = kv[idx+1:]
- }
- }
- return m
-}
-
-// RequestFromMap creates an http.Request from CGI variables.
-// The returned Request's Body field is not populated.
-func RequestFromMap(params map[string]string) (*http.Request, error) {
- r := new(http.Request)
- r.Method = params["REQUEST_METHOD"]
- if r.Method == "" {
- return nil, errors.New("cgi: no REQUEST_METHOD in environment")
- }
-
- r.Proto = params["SERVER_PROTOCOL"]
- var ok bool
- r.ProtoMajor, r.ProtoMinor, ok = http.ParseHTTPVersion(r.Proto)
- if !ok {
- return nil, errors.New("cgi: invalid SERVER_PROTOCOL version")
- }
-
- r.Close = true
- r.Trailer = http.Header{}
- r.Header = http.Header{}
-
- r.Host = params["HTTP_HOST"]
-
- if lenstr := params["CONTENT_LENGTH"]; lenstr != "" {
- clen, err := strconv.ParseInt(lenstr, 10, 64)
- if err != nil {
- return nil, errors.New("cgi: bad CONTENT_LENGTH in environment: " + lenstr)
- }
- r.ContentLength = clen
- }
-
- if ct := params["CONTENT_TYPE"]; ct != "" {
- r.Header.Set("Content-Type", ct)
- }
-
- // Copy "HTTP_FOO_BAR" variables to "Foo-Bar" Headers
- for k, v := range params {
- if !strings.HasPrefix(k, "HTTP_") || k == "HTTP_HOST" {
- continue
- }
- r.Header.Add(strings.Replace(k[5:], "_", "-", -1), v)
- }
-
- // TODO: cookies. parsing them isn't exported, though.
-
- uriStr := params["REQUEST_URI"]
- if uriStr == "" {
- // Fallback to SCRIPT_NAME, PATH_INFO and QUERY_STRING.
- uriStr = params["SCRIPT_NAME"] + params["PATH_INFO"]
- s := params["QUERY_STRING"]
- if s != "" {
- uriStr += "?" + s
- }
- }
-
- // There's apparently a de-facto standard for this.
- // http://docstore.mik.ua/orelly/linux/cgi/ch03_02.htm#ch03-35636
- if s := params["HTTPS"]; s == "on" || s == "ON" || s == "1" {
- r.TLS = &tls.ConnectionState{HandshakeComplete: true}
- }
-
- if r.Host != "" {
- // Hostname is provided, so we can reasonably construct a URL.
- rawurl := r.Host + uriStr
- if r.TLS == nil {
- rawurl = "http://" + rawurl
- } else {
- rawurl = "https://" + rawurl
- }
- url, err := url.Parse(rawurl)
- if err != nil {
- return nil, errors.New("cgi: failed to parse host and REQUEST_URI into a URL: " + rawurl)
- }
- r.URL = url
- }
- // Fallback logic if we don't have a Host header or the URL
- // failed to parse
- if r.URL == nil {
- url, err := url.Parse(uriStr)
- if err != nil {
- return nil, errors.New("cgi: failed to parse REQUEST_URI into a URL: " + uriStr)
- }
- r.URL = url
- }
-
- // Request.RemoteAddr has its port set by Go's standard http
- // server, so we do here too. We don't have one, though, so we
- // use a dummy one.
- r.RemoteAddr = net.JoinHostPort(params["REMOTE_ADDR"], "0")
-
- return r, nil
-}
-
-// Serve executes the provided Handler on the currently active CGI
-// request, if any. If there's no current CGI environment
-// an error is returned. The provided handler may be nil to use
-// http.DefaultServeMux.
-func Serve(handler http.Handler) error {
- req, err := Request()
- if err != nil {
- return err
- }
- if handler == nil {
- handler = http.DefaultServeMux
- }
- rw := &response{
- req: req,
- header: make(http.Header),
- bufw: bufio.NewWriter(os.Stdout),
- }
- handler.ServeHTTP(rw, req)
- rw.Write(nil) // make sure a response is sent
- if err = rw.bufw.Flush(); err != nil {
- return err
- }
- return nil
-}
-
-type response struct {
- req *http.Request
- header http.Header
- bufw *bufio.Writer
- headerSent bool
-}
-
-func (r *response) Flush() {
- r.bufw.Flush()
-}
-
-func (r *response) Header() http.Header {
- return r.header
-}
-
-func (r *response) Write(p []byte) (n int, err error) {
- if !r.headerSent {
- r.WriteHeader(http.StatusOK)
- }
- return r.bufw.Write(p)
-}
-
-func (r *response) WriteHeader(code int) {
- if r.headerSent {
- // 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))
-
- // Set a default Content-Type
- if _, hasType := r.header["Content-Type"]; !hasType {
- r.header.Add("Content-Type", "text/html; charset=utf-8")
- }
-
- r.header.Write(r.bufw)
- r.bufw.WriteString("\r\n")
- r.bufw.Flush()
-}