netramesh

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// Copyright 2015 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package httputil_test
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import (
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	"fmt"
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	"io/ioutil"
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	"log"
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	"net/http"
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	"net/http/httptest"
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	"net/http/httputil"
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	"net/url"
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	"strings"
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)
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func ExampleDumpRequest() {
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	ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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		dump, err := httputil.DumpRequest(r, true)
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		if err != nil {
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			http.Error(w, fmt.Sprint(err), http.StatusInternalServerError)
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			return
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		}
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		fmt.Fprintf(w, "%q", dump)
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	}))
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	defer ts.Close()
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	const body = "Go is a general-purpose language designed with systems programming in mind."
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	req, err := http.NewRequest("POST", ts.URL, strings.NewReader(body))
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	if err != nil {
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		log.Fatal(err)
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	}
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	req.Host = "www.example.org"
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	resp, err := http.DefaultClient.Do(req)
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	if err != nil {
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		log.Fatal(err)
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	}
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	defer resp.Body.Close()
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	b, err := ioutil.ReadAll(resp.Body)
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	if err != nil {
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		log.Fatal(err)
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	}
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	fmt.Printf("%s", b)
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	// Output:
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	// "POST / HTTP/1.1\r\nHost: www.example.org\r\nAccept-Encoding: gzip\r\nContent-Length: 75\r\nUser-Agent: Go-http-client/1.1\r\n\r\nGo is a general-purpose language designed with systems programming in mind."
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}
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func ExampleDumpRequestOut() {
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	const body = "Go is a general-purpose language designed with systems programming in mind."
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	req, err := http.NewRequest("PUT", "http://www.example.org", strings.NewReader(body))
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	if err != nil {
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		log.Fatal(err)
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	}
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	dump, err := httputil.DumpRequestOut(req, true)
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	if err != nil {
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		log.Fatal(err)
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	}
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	fmt.Printf("%q", dump)
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	// Output:
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	// "PUT / HTTP/1.1\r\nHost: www.example.org\r\nUser-Agent: Go-http-client/1.1\r\nContent-Length: 75\r\nAccept-Encoding: gzip\r\n\r\nGo is a general-purpose language designed with systems programming in mind."
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}
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func ExampleDumpResponse() {
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	const body = "Go is a general-purpose language designed with systems programming in mind."
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	ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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		w.Header().Set("Date", "Wed, 19 Jul 1972 19:00:00 GMT")
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		fmt.Fprintln(w, body)
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	}))
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	defer ts.Close()
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	resp, err := http.Get(ts.URL)
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	if err != nil {
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		log.Fatal(err)
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	}
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	defer resp.Body.Close()
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	dump, err := httputil.DumpResponse(resp, true)
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	if err != nil {
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		log.Fatal(err)
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	}
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	fmt.Printf("%q", dump)
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	// Output:
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	// "HTTP/1.1 200 OK\r\nContent-Length: 76\r\nContent-Type: text/plain; charset=utf-8\r\nDate: Wed, 19 Jul 1972 19:00:00 GMT\r\n\r\nGo is a general-purpose language designed with systems programming in mind.\n"
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}
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func ExampleReverseProxy() {
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	backendServer := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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		fmt.Fprintln(w, "this call was relayed by the reverse proxy")
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	}))
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	defer backendServer.Close()
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	rpURL, err := url.Parse(backendServer.URL)
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	if err != nil {
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		log.Fatal(err)
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	}
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	frontendProxy := httptest.NewServer(httputil.NewSingleHostReverseProxy(rpURL))
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	defer frontendProxy.Close()
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	resp, err := http.Get(frontendProxy.URL)
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	if err != nil {
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		log.Fatal(err)
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	}
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	b, err := ioutil.ReadAll(resp.Body)
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	if err != nil {
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		log.Fatal(err)
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	}
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	fmt.Printf("%s", b)
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	// Output:
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	// this call was relayed by the reverse proxy
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}
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