From 06f12bb7cb24f5f25252670d42f9c2fd7297202b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Lu=C3=ADs=20Cobucci?= <lcobucci@gmail.com>
Date: Thu, 2 Aug 2018 23:33:35 +0200
Subject: [PATCH] Use method compatible with all supported versions

---
 src/Signer/Key.php | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/src/Signer/Key.php b/src/Signer/Key.php
index 7b727aff..851fd687 100644
--- a/src/Signer/Key.php
+++ b/src/Signer/Key.php
@@ -61,9 +61,14 @@ private function setContent($content)
     private function readFile($content)
     {
         try {
-            $file = new SplFileObject(substr($content, 7));
+            $file    = new SplFileObject(substr($content, 7));
+            $content = '';
 
-            return $file->fread($file->getSize());
+            while (! $file->eof()) {
+                $content .= $file->fgets();
+            }
+
+            return $content;
         } catch (Exception $exception) {
             throw new InvalidArgumentException('You must inform a valid key file', 0, $exception);
         }