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token_user.go
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token_user.go
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package cmd
import (
"context"
"crypto/tls"
"fmt"
"net/http"
"time"
"github.com/julienschmidt/httprouter"
"github.com/ory-am/common/rand/sequence"
"github.com/ory/hydra/pkg"
"github.com/spf13/cobra"
"github.com/toqueteos/webbrowser"
"golang.org/x/oauth2"
)
// tokenUserCmd represents the token command
var tokenUserCmd = &cobra.Command{
Use: "user",
Short: "Generate an OAuth2 token using the code flow",
Run: func(cmd *cobra.Command, args []string) {
ctx := context.Background()
if ok, _ := cmd.Flags().GetBool("skip-tls-verify"); ok {
fmt.Println("Warning: Skipping TLS Certificate Verification.")
ctx = context.WithValue(context.Background(), oauth2.HTTPClient, &http.Client{Transport: &http.Transport{
TLSClientConfig: &tls.Config{InsecureSkipVerify: true},
}})
}
scopes, _ := cmd.Flags().GetStringSlice("scopes")
clientId, _ := cmd.Flags().GetString("id")
clientSecret, _ := cmd.Flags().GetString("secret")
redirectUrl, _ := cmd.Flags().GetString("redirect")
cluster, _ := cmd.Flags().GetString("cluster")
if clientId == "" {
clientId = c.ClientID
}
if clientSecret == "" {
clientSecret = c.ClientSecret
}
if cluster == "" {
cluster = c.ClusterURL
}
conf := oauth2.Config{
ClientID: clientId,
ClientSecret: clientSecret,
Endpoint: oauth2.Endpoint{
TokenURL: pkg.JoinURLStrings(cluster, "/oauth2/token"),
AuthURL: pkg.JoinURLStrings(cluster, "/oauth2/auth"),
},
RedirectURL: redirectUrl,
Scopes: scopes,
}
state, err := sequence.RuneSequence(24, []rune("abcdefghijklmnopqrstuvwxyz"))
pkg.Must(err, "Could not generate random state: %s", err)
nonce, err := sequence.RuneSequence(24, []rune("abcdefghijklmnopqrstuvwxyz"))
pkg.Must(err, "Could not generate random state: %s", err)
location := conf.AuthCodeURL(string(state)) + "&nonce=" + string(nonce)
if ok, _ := cmd.Flags().GetBool("no-open"); !ok {
webbrowser.Open(location)
}
fmt.Println("Setting up callback listener on http://localhost:4445/callback")
fmt.Println("Press ctrl + c on Linux / Windows or cmd + c on OSX to end the process.")
fmt.Printf("If your browser does not open automatically, navigate to:\n\n\t%s\n\n", location)
r := httprouter.New()
server := &http.Server{Addr: ":4445", Handler: r}
r.GET("/callback", func(w http.ResponseWriter, r *http.Request, _ httprouter.Params) {
if r.URL.Query().Get("error") != "" {
message := fmt.Sprintf("Got error: %s", r.URL.Query().Get("error_description"))
fmt.Println(message)
w.WriteHeader(http.StatusInternalServerError)
w.Write([]byte(message))
return
}
if r.URL.Query().Get("state") != string(state) {
message := fmt.Sprintf("States do not match. Expected %s, got %s", string(state), r.URL.Query().Get("state"))
fmt.Println(message)
w.WriteHeader(http.StatusInternalServerError)
w.Write([]byte(message))
return
}
code := r.URL.Query().Get("code")
token, err := conf.Exchange(ctx, code)
pkg.Must(err, "Could not exchange code for token: %s", err)
fmt.Printf("Access Token:\n\t%s\n", token.AccessToken)
fmt.Printf("Refresh Token:\n\t%s\n\n", token.RefreshToken)
fmt.Printf("Expires in:\n\t%s\n\n", token.Expiry)
w.Write([]byte(fmt.Sprintf(`
<html><head></head><body>
<ul>
<li>Access Token: <code>%s</code></li>
<li>Refresh Token: <code>%s</code></li>
<li>Expires in: <code>%s</code></li>
`, token.AccessToken, token.RefreshToken, token.Expiry)))
idt := token.Extra("id_token")
if idt != nil {
w.Write([]byte(fmt.Sprintf(`<li>ID Token: <code>%s</code></li>`, idt)))
fmt.Printf("ID Token:\n\t%s\n\n", idt)
}
w.Write([]byte("</ul></body></html>"))
go func() {
time.Sleep(time.Second * 1)
ctx, _ := context.WithTimeout(context.Background(), time.Second*5)
server.Shutdown(ctx)
}()
})
server.ListenAndServe()
},
}
func init() {
tokenCmd.AddCommand(tokenUserCmd)
tokenUserCmd.Flags().Bool("no-open", false, "Do not open the browser window automatically")
tokenUserCmd.Flags().StringSlice("scopes", []string{"hydra", "offline", "openid"}, "Force scopes")
tokenUserCmd.Flags().String("id", "", "Force a client id, defaults to value from config file")
tokenUserCmd.Flags().String("secret", "", "Force a client secret, defaults to value from config file")
tokenUserCmd.Flags().String("redirect", "http://localhost:4445/callback", "Force a redirect url")
tokenUserCmd.Flags().String("cluster", c.ClusterURL, "Force a cluster url, defaults to value from config file")
}