/usr/share/gocode/src/github.com/Azure/azure-sdk-for-go/core/http/triv.go is in golang-github-azure-azure-sdk-for-go-dev 2.1.1~beta-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 | // Copyright 2009 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.
// +build ignore
package main
import (
"bytes"
"expvar"
"flag"
"fmt"
"io"
"log"
"net/http"
"os"
"os/exec"
"strconv"
"sync"
)
// hello world, the web server
var helloRequests = expvar.NewInt("hello-requests")
func HelloServer(w http.ResponseWriter, req *http.Request) {
helloRequests.Add(1)
io.WriteString(w, "hello, world!\n")
}
// Simple counter server. POSTing to it will set the value.
type Counter struct {
mu sync.Mutex // protects n
n int
}
// This makes Counter satisfy the expvar.Var interface, so we can export
// it directly.
func (ctr *Counter) String() string {
ctr.mu.Lock()
defer ctr.mu.Unlock()
return fmt.Sprintf("%d", ctr.n)
}
func (ctr *Counter) ServeHTTP(w http.ResponseWriter, req *http.Request) {
ctr.mu.Lock()
defer ctr.mu.Unlock()
switch req.Method {
case "GET":
ctr.n++
case "POST":
buf := new(bytes.Buffer)
io.Copy(buf, req.Body)
body := buf.String()
if n, err := strconv.Atoi(body); err != nil {
fmt.Fprintf(w, "bad POST: %v\nbody: [%v]\n", err, body)
} else {
ctr.n = n
fmt.Fprint(w, "counter reset\n")
}
}
fmt.Fprintf(w, "counter = %d\n", ctr.n)
}
// simple flag server
var booleanflag = flag.Bool("boolean", true, "another flag for testing")
func FlagServer(w http.ResponseWriter, req *http.Request) {
w.Header().Set("Content-Type", "text/plain; charset=utf-8")
fmt.Fprint(w, "Flags:\n")
flag.VisitAll(func(f *flag.Flag) {
if f.Value.String() != f.DefValue {
fmt.Fprintf(w, "%s = %s [default = %s]\n", f.Name, f.Value.String(), f.DefValue)
} else {
fmt.Fprintf(w, "%s = %s\n", f.Name, f.Value.String())
}
})
}
// simple argument server
func ArgServer(w http.ResponseWriter, req *http.Request) {
for _, s := range os.Args {
fmt.Fprint(w, s, " ")
}
}
// a channel (just for the fun of it)
type Chan chan int
func ChanCreate() Chan {
c := make(Chan)
go func(c Chan) {
for x := 0; ; x++ {
c <- x
}
}(c)
return c
}
func (ch Chan) ServeHTTP(w http.ResponseWriter, req *http.Request) {
io.WriteString(w, fmt.Sprintf("channel send #%d\n", <-ch))
}
// exec a program, redirecting output
func DateServer(rw http.ResponseWriter, req *http.Request) {
rw.Header().Set("Content-Type", "text/plain; charset=utf-8")
date, err := exec.Command("/bin/date").Output()
if err != nil {
http.Error(rw, err.Error(), 500)
return
}
rw.Write(date)
}
func Logger(w http.ResponseWriter, req *http.Request) {
log.Print(req.URL)
http.Error(w, "oops", 404)
}
var webroot = flag.String("root", os.Getenv("HOME"), "web root directory")
func main() {
flag.Parse()
// The counter is published as a variable directly.
ctr := new(Counter)
expvar.Publish("counter", ctr)
http.Handle("/counter", ctr)
http.Handle("/", http.HandlerFunc(Logger))
http.Handle("/go/", http.StripPrefix("/go/", http.FileServer(http.Dir(*webroot))))
http.Handle("/chan", ChanCreate())
http.HandleFunc("/flags", FlagServer)
http.HandleFunc("/args", ArgServer)
http.HandleFunc("/go/hello", HelloServer)
http.HandleFunc("/date", DateServer)
err := http.ListenAndServe(":12345", nil)
if err != nil {
log.Panicln("ListenAndServe:", err)
}
}
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