// Verify a token and output the claims.
func (j *JWT) VerifyToken(tokenData []byte) (*jwt.Token, error) {
// trim possible whitespace from token
tokenData = regexp.MustCompile(`\s*$`).ReplaceAll(tokenData, []byte{})
// Parse the token. Load the key from command line option
token, err := jwt.Parse(string(tokenData), func(t *jwt.Token) (interface{}, error) {
if _, ok := t.Method.(*jwt.SigningMethodRSA); !ok {
return nil, errors.Errorf("Unexpected signing method: %v", t.Header["alg"])
}
return jwt.ParseRSAPublicKeyFromPEM(j.publicKey)
})
if err != nil {
return nil, errors.Errorf("Couldn't parse token: %v", err)
} else if !token.Valid {
return nil, errors.Errorf("Token is invalid")
}
claims := ClaimsCarrier(token.Claims)
if claims.AssertExpired() {
token.Valid = false
return token, errors.Errorf("Token expired: %v", claims.GetExpiresAt())
}
if claims.AssertNotYetValid() {
token.Valid = false
return token, errors.Errorf("Token is not valid yet: %v", claims.GetNotBefore())
}
return token, nil
}
func PoliciesFromContext(ctx context.Context) ([]policy.Policy, error) {
args, ok := ctx.Value(authKey).(*authorization)
if !ok {
return nil, errors.Errorf("Could not assert array type for %s", ctx.Value(authKey))
}
symbols := make([]policy.Policy, len(args.policies))
for i, arg := range args.policies {
symbols[i], ok = arg.(*policy.DefaultPolicy)
if !ok {
return nil, errors.Errorf("Could not assert policy type for %s", ctx.Value(authKey))
}
}
return symbols, nil
}
func SubjectFromContext(ctx context.Context) (string, error) {
args, ok := ctx.Value(authKey).(*authorization)
if !ok {
return "", errors.Errorf("Could not assert type for %v", ctx.Value(authKey))
}
return args.claims.GetSubject(), nil
}
func TokenFromContext(ctx context.Context) (*jwt.Token, error) {
args, ok := ctx.Value(authKey).(*authorization)
if !ok {
return nil, errors.Errorf("Could not assert type for %v", ctx.Value(authKey))
}
return args.token, nil
}
func (r *defaultRegistry) Find(id string) (Provider, error) {
id = strings.ToLower(id)
p, ok := r.providers[id]
if !ok {
return nil, errors.Errorf("Provider %s not found", id)
}
return p, nil
}
// Helper func: Read certificate from specified file
func LoadCertificate(path string) ([]byte, error) {
if path == "" {
return nil, errors.Errorf("No path specified")
}
var rdr io.Reader
if f, err := os.Open(path); err == nil {
rdr = f
defer f.Close()
} else {
return nil, err
}
return ioutil.ReadAll(rdr)
}
func (j *JWT) GenerateAccessToken(data *osin.AccessData, generateRefresh bool) (accessToken string, refreshToken string, err error) {
claims, ok := data.UserData.(ClaimsCarrier)
if !ok {
return "", "", errors.Errorf("Could not assert claims to ClaimsCarrier: %v", claims)
}
claims["exp"] = data.ExpireAt()
if accessToken, err = j.SignToken(claims, map[string]interface{}{}); err != nil {
return "", "", err
} else if !generateRefresh {
return
}
if refreshToken, err = j.SignToken(claims, map[string]interface{}{}); err != nil {
return "", "", err
}
return
}
func (h *Handler) authenticate(w http.ResponseWriter, r *http.Request, email, password string) (account.Account, error) {
acc, err := h.Accounts.Authenticate(email, password)
if err != nil {
http.Error(w, "Could not authenticate.", http.StatusUnauthorized)
return nil, err
}
policies, err := h.Policies.FindPoliciesForSubject(acc.GetID())
if err != nil {
http.Error(w, fmt.Sprintf("Could not fetch policies: %s", err.Error()), http.StatusInternalServerError)
return nil, err
}
if granted, err := h.Guard.IsGranted("/oauth2/authorize", "authorize", acc.GetID(), policies, middleware.Env(r).Ctx()); !granted {
err = errors.Errorf(`Subject "%s" is not allowed to authorize.`, acc.GetID())
http.Error(w, err.Error(), http.StatusUnauthorized)
return nil, err
} else if err != nil {
http.Error(w, fmt.Sprintf(`Authorization failed for Subject "%s": %s`, acc.GetID(), err.Error()), http.StatusInternalServerError)
return nil, err
}
return acc, nil
}
func (d *dropbox) Exchange(code string) (Session, error) {
conf := *d.conf
ctx := context.Background()
token, err := conf.Exchange(ctx, code)
if err != nil {
return nil, err
}
if !token.Valid() {
return nil, errors.Errorf("Token is not valid: %v", token)
}
c := conf.Client(ctx, token)
rawurl := fmt.Sprintf("%s/%s?%s", d.api, "users/get_current_account", nil)
response, err := c.Get(rawurl)
if err != nil {
return nil, err
}
defer response.Body.Close()
body, err := ioutil.ReadAll(response.Body)
if err != nil {
return nil, err
}
var acc Account
if err = json.Unmarshal(body, &acc); err != nil {
return nil, err
}
return &DefaultSession{
RemoteSubject: acc.ID,
Extra: acc,
Token: token,
}, nil
}
