From 363f56f895cfaf10021e2ade7ba0434e1e129bbf Mon Sep 17 00:00:00 2001
From: wgjak47 <ak47m61@gmail.com>
Date: Wed, 4 Aug 2021 22:51:58 +0800
Subject: [PATCH] Add IDToken for google provider

---
 providers/google/google.go  | 5 ++---
 providers/google/session.go | 2 ++
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/providers/google/google.go b/providers/google/google.go
index dcc79245b..cc55f3fd7 100644
--- a/providers/google/google.go
+++ b/providers/google/google.go
@@ -86,6 +86,7 @@ func (p *Provider) FetchUser(session goth.Session) (goth.User, error) {
 		Provider:     p.Name(),
 		RefreshToken: sess.RefreshToken,
 		ExpiresAt:    sess.ExpiresAt,
+		IDToken:      sess.IDToken,
 	}
 
 	if user.AccessToken == "" {
@@ -139,9 +140,7 @@ func newConfig(provider *Provider, scopes []string) *oauth2.Config {
 	}
 
 	if len(scopes) > 0 {
-		for _, scope := range scopes {
-			c.Scopes = append(c.Scopes, scope)
-		}
+		c.Scopes = append(c.Scopes, scopes...)
 	} else {
 		c.Scopes = []string{"email"}
 	}
diff --git a/providers/google/session.go b/providers/google/session.go
index 47df1601b..f2791df59 100644
--- a/providers/google/session.go
+++ b/providers/google/session.go
@@ -15,6 +15,7 @@ type Session struct {
 	AccessToken  string
 	RefreshToken string
 	ExpiresAt    time.Time
+	IDToken      string
 }
 
 // GetAuthURL will return the URL set by calling the `BeginAuth` function on the Google provider.
@@ -40,6 +41,7 @@ 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)
 	return token.AccessToken, err
 }