Guard against empty REMOTE_ADDR (#1751)

Author: stayallive

src/Integration/RequestIntegration.php

@@ -137,7 +137,7 @@ private function processEvent(Event $event, Options $options): void
         if ($options->shouldSendDefaultPii()) {
             $serverParams = $request->getServerParams();
 
-            if (isset($serverParams['REMOTE_ADDR'])) {
+            if (!empty($serverParams['REMOTE_ADDR'])) {
                 $user = $event->getUser();
                 $requestData['env']['REMOTE_ADDR'] = $serverParams['REMOTE_ADDR'];
 

tests/Integration/RequestIntegrationTest.php

@@ -163,6 +163,24 @@ public static function invokeDataProvider(): iterable
             UserDataBag::createFromUserIpAddress('127.0.0.1'),
         ];
 
+        yield [
+            [
+                'send_default_pii' => true,
+            ],
+            (new ServerRequest('GET', 'http://www.example.com', [], null, '1.1', ['REMOTE_ADDR' => '']))
+                ->withHeader('Host', 'www.example.com'),
+            [
+                'url' => 'http://www.example.com',
+                'method' => 'GET',
+                'cookies' => [],
+                'headers' => [
+                    'Host' => ['www.example.com'],
+                ],
+            ],
+            null,
+            null,
+        ];
+
         yield [
             [
                 'send_default_pii' => false,