fix: fail gracefully when id_token is missing (#565)

Author: Func86

providers/google/session.go

@@ -41,7 +41,9 @@ func (s *Session) Authorize(provider goth.Provider, params goth.Params) (string,
 	s.AccessToken = token.AccessToken
 	s.RefreshToken = token.RefreshToken
 	s.ExpiresAt = token.Expiry
-	s.IDToken = token.Extra("id_token").(string)
+	if idToken := token.Extra("id_token"); idToken != nil {
+		s.IDToken = idToken.(string)
+	}
 	return token.AccessToken, err
 }
 

providers/openidConnect/session.go

@@ -57,7 +57,9 @@ func (s *Session) Authorize(provider goth.Provider, params goth.Params) (string,
 	s.AccessToken = token.AccessToken
 	s.RefreshToken = token.RefreshToken
 	s.ExpiresAt = token.Expiry
-	s.IDToken = token.Extra("id_token").(string)
+	if idToken := token.Extra("id_token"); idToken != nil {
+		s.IDToken = idToken.(string)
+	}
 	return token.AccessToken, err
 }