From 34de195afd9a8099ec0f8f66986f1c8d932fcfe9 Mon Sep 17 00:00:00 2001
From: Frederic Ollivier <3798489+fredol@users.noreply.github.com>
Date: Mon, 27 Jun 2022 16:48:27 +0200
Subject: [PATCH] Update SftpConnectionProvider.php

6a19b50c(Fix a logic error on private key file)
---
 src/PhpseclibV3/SftpConnectionProvider.php | 23 +++++++++++++---------
 1 file changed, 14 insertions(+), 9 deletions(-)

diff --git a/src/PhpseclibV3/SftpConnectionProvider.php b/src/PhpseclibV3/SftpConnectionProvider.php
index 5cd3f5f8d..996261cdd 100644
--- a/src/PhpseclibV3/SftpConnectionProvider.php
+++ b/src/PhpseclibV3/SftpConnectionProvider.php
@@ -228,21 +228,26 @@ private function authenticateWithPrivateKey(SFTP $connection): void
 
     private function loadPrivateKey(): AsymmetricKey
     {
-        if ("---" !== substr($this->privateKey, 0, 3) && is_file($this->privateKey)) {
+        if (is_file($this->privateKey)) {
             $this->privateKey = file_get_contents($this->privateKey);
-        }
+        } else
+            throw new UnableToLoadPrivateKey();
 
-        try {
-            if ($this->passphrase !== null) {
-                return PublicKeyLoader::load($this->privateKey, $this->passphrase);
-            }
+        if (str_starts_with($this->privateKey, "---")) {
+            try {
+                if ($this->passphrase !== null) {
+                    return PublicKeyLoader::load($this->privateKey, $this->passphrase);
+                }
 
-            return PublicKeyLoader::load($this->privateKey);
-        } catch (NoKeyLoadedException $exception) {
+                return PublicKeyLoader::load($this->privateKey);
+            } catch (NoKeyLoadedException $exception) {
+                throw new UnableToLoadPrivateKey();
+            }
+        } else
             throw new UnableToLoadPrivateKey();
-        }
     }
 
+
     private function authenticateWithAgent(SFTP $connection): void
     {
         $agent = new Agent();