Precious community feedback-based refactoring

src/Composer/Util/StreamContextFactory.php

@@ -34,18 +34,20 @@ final class StreamContextFactory
         // Handle system proxy
         if (isset($_SERVER['HTTP_PROXY']) || isset($_SERVER['http_proxy'])) {
             // Some systems seem to rely on a lowercased version instead...
-            $proxy = isset($_SERVER['http_proxy']) ? $_SERVER['http_proxy'] : $_SERVER['HTTP_PROXY'];
-            
-            $proxyURL = parse_url($proxy, PHP_URL_SCHEME) . "://";
-            $proxyURL .= parse_url($proxy, PHP_URL_HOST);
+            $proxy = parse_url(isset($_SERVER['http_proxy']) ? $_SERVER['http_proxy'] : $_SERVER['HTTP_PROXY']);
+        } else {
+            $proxy = false;
+        }
 
-            $proxyPort = parse_url($proxy, PHP_URL_PORT);
+        if (false !== $proxy) {
+            $proxyURL = (isset($proxy['scheme']) ? $proxy['scheme'] : '') . '://';
+            $proxyURL .= isset($proxy['host']) ? $proxy['host'] : '';
 
-            if (isset($proxyPort)) {
-                $proxyURL .= ":" . $proxyPort;
-            } else if ('http://' == substr($proxyURL, 0, 7)) {
+            if (isset($proxy['port'])) {
+                $proxyURL .= ":" . $proxy['port'];
+            } elseif ('http://' == substr($proxyURL, 0, 7)) {
                 $proxyURL .= ":80";
-            } else if ('https://' == substr($proxyURL, 0, 8)) {
+            } elseif ('https://' == substr($proxyURL, 0, 8)) {
                 $proxyURL .= ":443";
             }
 
@@ -61,14 +63,10 @@ final class StreamContextFactory
                 'request_fulluri' => true,
             );
 
-            // Extract authentication credentials from the proxy url
-            $user = parse_url($proxy, PHP_URL_USER);
-            $pass = parse_url($proxy, PHP_URL_PASS);
-            
-            if (isset($user)) {
-                $auth = $user;
-                if (isset($pass)) {
-                    $auth .= ":{$pass}";
+            if (isset($proxy['user'])) {
+                $auth = $proxy['user'];
+                if (isset($proxy['pass'])) {
+                    $auth .= ':' . $proxy['pass'];
                 }
                 $auth = base64_encode($auth);
 
@@ -80,6 +78,7 @@ final class StreamContextFactory
                 }
             }
         }
+
         $options = array_merge_recursive($options, $defaultOptions);
 
         return stream_context_create($options, $defaultParams);