From f43bcbd06f34ad09bad090a49a76dbe432939d0a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Michael=20Lundb=C3=B8l?= <ml@napp.dk>
Date: Mon, 4 Feb 2019 14:43:56 +0100
Subject: [PATCH] Allow a state to be passed.

---
 src/Client.php | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/src/Client.php b/src/Client.php
index 97b9cbc..c6098dc 100644
--- a/src/Client.php
+++ b/src/Client.php
@@ -289,9 +289,10 @@ public function getAccessToken(): ?AccessToken
      * Get the url to redirect users to when setting up a salesforce access token
      *
      * @param string $redirectUrl
+     * @param string|null $state
      * @return string
      */
-    public function getLoginUrl(string $redirectUrl): string
+    public function getLoginUrl(string $redirectUrl, ?string $state = null): string
     {
         $params = [
             'client_id'     => $this->clientConfig->getClientId(),
@@ -300,7 +301,12 @@ public function getLoginUrl(string $redirectUrl): string
             'grant_type'    => 'authorization_code'
         ];
 
-        return rtrim($this->clientConfig->getLoginUrl(), '/') . '/services/oauth2/authorize?' . http_build_query($params);
+        if (null !== $state) {
+            $params['state'] = $state;
+        }
+
+        return rtrim($this->clientConfig->getLoginUrl(), '/') . '/services/oauth2/authorize?' .
+            http_build_query($params, '', '&', PHP_QUERY_RFC1738);
     }
 
     /**