example.go
· 2.6 KiB · Go
Sin formato
type iLogin struct {
code string
state string
}
var loginCh = make(chan iLogin)
func init() {
// Load login webserver
http.HandleFunc("/auth/sauron", func(w http.ResponseWriter, r *http.Request) {
code := r.URL.Query().Get("code")
state := r.URL.Query().Get("state")
w.Write([]byte("You can now close this window"))
loginCh <- iLogin{
code: code,
state: state,
}
})
}
func webAuthUser() (string, string, error) {
resp, err := helpers.NewReq().Get("list/oauth2").Do()
if err != nil {
return "", "", errors.New("error occurred while getting OAuth2 URL: " + err.Error())
}
var oauth2Data types.OauthMeta
err = resp.Json(&oauth2Data)
if err != nil {
fmt.Print(helpers.RedText("Error parsing OAuth2 URL: " + err.Error()))
return "", "", err
}
// Open a http server on port 3000
srv := &http.Server{Addr: ":3000"}
go func() {
err := srv.ListenAndServe()
if err != http.ErrServerClosed {
log.Fatal(err)
}
}()
state := crypto.RandString(32)
fmt.Println("")
fmt.Println("")
fmt.Print(helpers.BlueText("Please open the following URL in your browser and follow the instructions:"))
fmt.Println("")
fmt.Println(strings.ReplaceAll(oauth2Data.URL, "%REDIRECT_URL%", "http://localhost:3000") + "&state=" + state)
// Wait for login
login := <-loginCh
fmt.Println("Got login code", login.code, "with state", login.state)
ctx, cancel := context.WithTimeout(context.Background(), 1*time.Second)
srv.Shutdown(ctx)
cancel()
if login.state != state {
time.Sleep(5 * time.Second)
return "", "", errors.New("invalid state, please try again")
}
// Exchange code for token
resp, err = helpers.NewReq().Put("users").Json(types.AuthorizeRequest{
ClientID: oauth2Data.ClientID,
Code: login.code,
Scope: "external_auth",
Nonce: "@external",
RedirectURI: "http://localhost:3000/auth/sauron",
}).Do()
if err != nil {
time.Sleep(5 * time.Second)
return "", "", errors.New("error occurred while exchanging code for token: " + err.Error())
}
if resp.Response.StatusCode != 200 {
fmt.Println("Login failed, got response code", resp.Response.StatusCode)
body, err := resp.Body()
if err != nil {
return "", "", errors.New("error occurred while parsing error when exchanging code for token: " + err.Error())
}
fmt.Println("Error body:", string(body))
return "", "", errors.New("login failed, got response code " + fmt.Sprint(resp.Response.StatusCode))
}
var loginData types.UserLogin
err = resp.Json(&loginData)
if err != nil {
return "", "", errors.New("error occurred while parsing login data: " + err.Error())
}
return loginData.UserID, loginData.Token, nil
}
| 1 | type iLogin struct { |
| 2 | code string |
| 3 | state string |
| 4 | } |
| 5 | |
| 6 | var loginCh = make(chan iLogin) |
| 7 | |
| 8 | func init() { |
| 9 | // Load login webserver |
| 10 | http.HandleFunc("/auth/sauron", func(w http.ResponseWriter, r *http.Request) { |
| 11 | code := r.URL.Query().Get("code") |
| 12 | state := r.URL.Query().Get("state") |
| 13 | |
| 14 | w.Write([]byte("You can now close this window")) |
| 15 | |
| 16 | loginCh <- iLogin{ |
| 17 | code: code, |
| 18 | state: state, |
| 19 | } |
| 20 | }) |
| 21 | } |
| 22 | |
| 23 | |
| 24 | func webAuthUser() (string, string, error) { |
| 25 | resp, err := helpers.NewReq().Get("list/oauth2").Do() |
| 26 | |
| 27 | if err != nil { |
| 28 | return "", "", errors.New("error occurred while getting OAuth2 URL: " + err.Error()) |
| 29 | } |
| 30 | |
| 31 | var oauth2Data types.OauthMeta |
| 32 | |
| 33 | err = resp.Json(&oauth2Data) |
| 34 | |
| 35 | if err != nil { |
| 36 | fmt.Print(helpers.RedText("Error parsing OAuth2 URL: " + err.Error())) |
| 37 | return "", "", err |
| 38 | } |
| 39 | |
| 40 | // Open a http server on port 3000 |
| 41 | srv := &http.Server{Addr: ":3000"} |
| 42 | |
| 43 | go func() { |
| 44 | err := srv.ListenAndServe() |
| 45 | if err != http.ErrServerClosed { |
| 46 | log.Fatal(err) |
| 47 | } |
| 48 | }() |
| 49 | |
| 50 | state := crypto.RandString(32) |
| 51 | |
| 52 | fmt.Println("") |
| 53 | fmt.Println("") |
| 54 | fmt.Print(helpers.BlueText("Please open the following URL in your browser and follow the instructions:")) |
| 55 | fmt.Println("") |
| 56 | fmt.Println(strings.ReplaceAll(oauth2Data.URL, "%REDIRECT_URL%", "http://localhost:3000") + "&state=" + state) |
| 57 | |
| 58 | // Wait for login |
| 59 | login := <-loginCh |
| 60 | |
| 61 | fmt.Println("Got login code", login.code, "with state", login.state) |
| 62 | |
| 63 | ctx, cancel := context.WithTimeout(context.Background(), 1*time.Second) |
| 64 | |
| 65 | srv.Shutdown(ctx) |
| 66 | |
| 67 | cancel() |
| 68 | |
| 69 | if login.state != state { |
| 70 | time.Sleep(5 * time.Second) |
| 71 | return "", "", errors.New("invalid state, please try again") |
| 72 | } |
| 73 | |
| 74 | // Exchange code for token |
| 75 | resp, err = helpers.NewReq().Put("users").Json(types.AuthorizeRequest{ |
| 76 | ClientID: oauth2Data.ClientID, |
| 77 | Code: login.code, |
| 78 | Scope: "external_auth", |
| 79 | Nonce: "@external", |
| 80 | RedirectURI: "http://localhost:3000/auth/sauron", |
| 81 | }).Do() |
| 82 | |
| 83 | if err != nil { |
| 84 | time.Sleep(5 * time.Second) |
| 85 | return "", "", errors.New("error occurred while exchanging code for token: " + err.Error()) |
| 86 | } |
| 87 | |
| 88 | if resp.Response.StatusCode != 200 { |
| 89 | fmt.Println("Login failed, got response code", resp.Response.StatusCode) |
| 90 | |
| 91 | body, err := resp.Body() |
| 92 | |
| 93 | if err != nil { |
| 94 | return "", "", errors.New("error occurred while parsing error when exchanging code for token: " + err.Error()) |
| 95 | } |
| 96 | |
| 97 | fmt.Println("Error body:", string(body)) |
| 98 | return "", "", errors.New("login failed, got response code " + fmt.Sprint(resp.Response.StatusCode)) |
| 99 | } |
| 100 | |
| 101 | var loginData types.UserLogin |
| 102 | |
| 103 | err = resp.Json(&loginData) |
| 104 | |
| 105 | if err != nil { |
| 106 | return "", "", errors.New("error occurred while parsing login data: " + err.Error()) |
| 107 | } |
| 108 | |
| 109 | return loginData.UserID, loginData.Token, nil |
| 110 | } |