diff --git a/upload/install/include/install_function.php b/upload/install/include/install_function.php
index bc68528..c1ff4da 100644
--- a/upload/install/include/install_function.php
+++ b/upload/install/include/install_function.php
@@ -867,7 +867,7 @@ function dfopen($url, $limit = 0, $post = '', $cookie = '', $bysocket = FALSE, $
 	$scheme = $matches['scheme'];
 	$host = $matches['host'];
 	$path = $matches['path'] ? $matches['path'].($matches['query'] ? '?'.$matches['query'] : '') : '/';
-	$port = !empty($matches['port']) ? $matches['port'] : 80;
+	$port = !empty($matches['port']) ? $matches['port'] : ($matches['scheme'] == 'https' ? 443 : 80);
 
 	if(function_exists('curl_init') && $allowcurl) {
 		$ch = curl_init();
@@ -923,7 +923,7 @@ function dfopen($url, $limit = 0, $post = '', $cookie = '', $bysocket = FALSE, $
 	}
 
 	$fpflag = 0;
-	if(!$fp = @fsocketopen(($ip ? $ip : $host), $port, $errno, $errstr, $timeout)) {
+	if(!$fp = @fsocketopen(($scheme == 'https' ? 'ssl' : $scheme).'://'.($scheme == 'https' ? $host : ($ip ? $ip : $host)), $port, $errno, $errstr, $timeout)) {
 		$context = array(
 			'http' => array(
 				'method' => $post ? 'POST' : 'GET',
@@ -933,7 +933,7 @@ function dfopen($url, $limit = 0, $post = '', $cookie = '', $bysocket = FALSE, $
 			),
 		);
 		$context = stream_context_create($context);
-		$fp = @fopen($scheme.'://'.($ip ? $ip : $host).':'.$port.$path, 'b', false, $context);
+		$fp = @fopen($scheme.'://'.($scheme == 'https' ? $host : ($ip ? $ip : $host)).':'.$port.$path, 'b', false, $context);
 		$fpflag = 1;
 	}