lico implicit scope reproducer

identifier-registration.yaml

clients:
- id: works
  name: ownCloud Web app
  trusted: true
  implicit_scopes:
  - LibgreGraph.UUID
  secret: ""
  redirect_uris:
  - http://127.0.0.1
  - http://localhost
  origins: []
  application_type: native
- id: broken
  name: ownCloud Web app
  implicit_scopes:
  - LibgreGraph.UUID
  secret: ""
  redirect_uris:
  - http://127.0.0.1
  - http://localhost
  origins: []
  application_type: native

userinfo.go

/*
This is an example application to demonstrate querying the user info endpoint. (adapted for use with lico)
Adapt the provider URL on line 62 to you needs.
*/
package main

import (
	"crypto/rand"
	"crypto/tls"
	"encoding/base64"
	"encoding/json"
	"fmt"
	"io"
	"log"
	"net/http"
	"os"
	"time"

	"github.com/coreos/go-oidc/v3/oidc"
	"golang.org/x/net/context"
	"golang.org/x/oauth2"
)

var (
	clientID     = os.Getenv("CLIENT_ID")
	clientSecret = os.Getenv("CLIENT_SECRET")
)

func randString(nByte int) (string, error) {
	b := make([]byte, nByte)
	if _, err := io.ReadFull(rand.Reader, b); err != nil {
		return "", err
	}
	return base64.RawURLEncoding.EncodeToString(b), nil
}

func setCallbackCookie(w http.ResponseWriter, r *http.Request, name, value string) {
	c := &http.Cookie{
		Name:     name,
		Value:    value,
		MaxAge:   int(time.Hour.Seconds()),
		Secure:   r.TLS != nil,
		HttpOnly: true,
	}
	http.SetCookie(w, c)
}

func main() {
	ctx := context.Background()
	var oidcHTTPClient = &http.Client{
		Transport: &http.Transport{
			TLSClientConfig: &tls.Config{
				MinVersion:         tls.VersionTLS12,
				InsecureSkipVerify: true,
			},
			DisableKeepAlives: true,
		},
		Timeout: time.Second * 10,
	}
	ctx = oidc.ClientContext(ctx, oidcHTTPClient)

	provider, err := oidc.NewProvider(ctx, "https://ocis.owncloud.test")
	if err != nil {
		log.Fatal(err)
	}
	config := oauth2.Config{
		ClientID:     clientID,
		ClientSecret: clientSecret,
		Endpoint:     provider.Endpoint(),
		RedirectURL:  "http://127.0.0.1:5556/auth/google/callback",
		Scopes:       []string{oidc.ScopeOpenID, "profile", "email"},
	}

	http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
		state, err := randString(16)
		if err != nil {
			http.Error(w, "Internal error", http.StatusInternalServerError)
			return
		}
		setCallbackCookie(w, r, "state", state)

		//http.Redirect(w, r, config.AuthCodeURL(state, oauth2.ApprovalForce), http.StatusFound)
		http.Redirect(w, r, config.AuthCodeURL(state), http.StatusFound)
	})

	http.HandleFunc("/auth/google/callback", func(w http.ResponseWriter, r *http.Request) {
		state, err := r.Cookie("state")
		if err != nil {
			http.Error(w, "state not found", http.StatusBadRequest)
			return
		}
		if r.URL.Query().Get("state") != state.Value {
			http.Error(w, "state did not match", http.StatusBadRequest)
			return
		}

		oauth2Token, err := config.Exchange(ctx, r.URL.Query().Get("code"))
		if err != nil {
			http.Error(w, "Failed to exchange token: "+err.Error(), http.StatusInternalServerError)
			return
		}

		userInfo, err := provider.UserInfo(ctx, oauth2.StaticTokenSource(oauth2Token))
		if err != nil {
			http.Error(w, "Failed to get userinfo: "+err.Error(), http.StatusInternalServerError)
			return
		}

		var claims map[string]interface{}
		err = userInfo.Claims(&claims)
		fmt.Printf("Error %v\n", err)

		resp := struct {
			OAuth2Token *oauth2.Token
			UserInfo    map[string]interface{}
		}{oauth2Token, claims}
		data, err := json.MarshalIndent(resp, "", "    ")
		if err != nil {
			http.Error(w, err.Error(), http.StatusInternalServerError)
			return
		}
		w.Write(data)
	})

	log.Printf("listening on http://%s/", "127.0.0.1:5556")
	log.Fatal(http.ListenAndServe("127.0.0.1:5556", nil))
}