Mercurial > gemma

annotate cmd/tokenserver/main.go @ 170:9f1b84b712a8

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fix: updated API spec
author Thomas Junk <thomas.junk@intevation.de>
date Tue, 10 Jul 2018 12:03:33 +0200
parents 3349bfc2a047
children fe3a88f00b0a
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 package main
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2
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3 import (
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4 "context"
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5 "encoding/json"
1
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6 "flag"
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7 "fmt"
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8 "log"
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9 "net/http"
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10 "os"
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11 "os/signal"
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12 "path/filepath"
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13 "syscall"
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14
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15 "gemma.intevation.de/gemma/auth"
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16 )
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17
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18 func sysAdmin(rw http.ResponseWriter, req *http.Request) {
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19 session, _ := auth.GetSession(req)
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20 rw.Header().Set("Content-Type", "text/plain")
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21 fmt.Fprintf(rw, "%s is a sys_admin\n", session.User)
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22 }
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23
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24 func renew(rw http.ResponseWriter, req *http.Request) {
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25 token, _ := auth.GetToken(req)
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26 newToken, err := auth.ConnPool.Renew(token)
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27 switch {
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28 case err == auth.ErrNoSuchToken:
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29 http.NotFound(rw, req)
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30 return
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31 case err != nil:
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32 http.Error(rw, fmt.Sprintf("error: %v", err), http.StatusInternalServerError)
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33 return
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34 }
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35
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36 session, _ := auth.GetSession(req)
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37
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38 var result = struct {
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39 Token string `json:"token"`
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40 Expires int64 `json:"expires"`
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41 User string `json:"user"`
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42 Roles []string `json:"roles"`
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43 }{
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44 Token: newToken,
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45 Expires: session.ExpiresAt,
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46 User: session.User,
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47 Roles: session.Roles,
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48 }
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49
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50 rw.Header().Set("Content-Type", "text/plain")
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51 if err := json.NewEncoder(rw).Encode(&result); err != nil {
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52 log.Printf("error: %v\n", err)
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53 }
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54 }
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55
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56 func logout(rw http.ResponseWriter, req *http.Request) {
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57 token, _ := auth.GetToken(req)
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58 deleted := auth.ConnPool.Delete(token)
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59 if !deleted {
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60 http.NotFound(rw, req)
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61 return
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62 }
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63 rw.Header().Set("Content-Type", "text/plain")
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64 fmt.Fprintln(rw, "token deleted")
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65 }
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66
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67 func token(rw http.ResponseWriter, req *http.Request) {
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68 user := req.FormValue("user")
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69 password := req.FormValue("password")
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70
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71 token, session, err := auth.GenerateSession(user, password)
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72
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73 if err != nil {
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74 http.Error(rw, fmt.Sprintf("error: %v", err), http.StatusInternalServerError)
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75 return
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76 }
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77
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78 var result = struct {
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79 Token string `json:"token"`
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80 Expires int64 `json:"expires"`
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81 User string `json:"user"`
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82 Roles []string `json:"roles"`
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83 }{
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84 Token: token,
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85 Expires: session.ExpiresAt,
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86 User: session.User,
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87 Roles: session.Roles,
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88 }
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89
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90 rw.Header().Set("Content-Type", "application/json")
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91 if err := json.NewEncoder(rw).Encode(&result); err != nil {
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92 log.Printf("error: %v\n", err)
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93 }
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94 }
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95
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96 func main() {
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97 port := flag.Int("port", 8000, "port to listen at.")
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98 host := flag.String("host", "localhost", "host to listen at.")
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99 flag.Parse()
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100 p, _ := filepath.Abs("./web")
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101 mux := http.NewServeMux()
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102 mux.Handle("/", http.StripPrefix("/", http.FileServer(http.Dir(p))))
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103 mux.HandleFunc("/api/token", token)
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104 mux.Handle("/api/logout", auth.SessionMiddleware(http.HandlerFunc(token)))
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105 mux.Handle("/api/renew", auth.SessionMiddleware(http.HandlerFunc(renew)))
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106 mux.Handle("/api/sys_admin",
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107 auth.SessionMiddleware(
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108 auth.SessionChecker(http.HandlerFunc(sysAdmin), auth.HasRole("sys_admin"))))
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109
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110 addr := fmt.Sprintf("%s:%d", *host, *port)
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111
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112 server := http.Server{Addr: addr, Handler: mux}
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113
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114 done := make(chan error)
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115
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116 go func() {
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117 defer close(done)
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118 done <- server.ListenAndServe()
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119 }()
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120
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121 sigChan := make(chan os.Signal)
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122 signal.Notify(sigChan, os.Interrupt, os.Kill, syscall.SIGTERM)
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123
3349bfc2a047 Shutdown server gracefully.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
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124 select {
3349bfc2a047 Shutdown server gracefully.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
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125 case err := <-done:
3349bfc2a047 Shutdown server gracefully.
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126 if err != nil && err != http.ErrServerClosed {
3349bfc2a047 Shutdown server gracefully.
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127 log.Fatalf("error: %v\n", err)
3349bfc2a047 Shutdown server gracefully.
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128 }
3349bfc2a047 Shutdown server gracefully.
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129 case <-sigChan:
3349bfc2a047 Shutdown server gracefully.
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130 }
3349bfc2a047 Shutdown server gracefully.
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131
3349bfc2a047 Shutdown server gracefully.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
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132 server.Shutdown(context.Background())
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133
3349bfc2a047 Shutdown server gracefully.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
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134 <-done
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
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135
3349bfc2a047 Shutdown server gracefully.
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136 if err := auth.ConnPool.Shutdown(); err != nil {
3349bfc2a047 Shutdown server gracefully.
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137 log.Fatalf("error: %v\n", err)
3349bfc2a047 Shutdown server gracefully.
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parents: 134
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138 }
1
0e1d0c00bc74 Useless webserver to test go-gettablity.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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139 }