Make remote address available via requestContext.http.sourceIp

ChangeLog.md

@@ -3,6 +3,10 @@ AWS Lambda Webservices change log
 
 ## ?.?.? / ????-??-??
 
+* Made remote address available in HTTP headers, populated via events'
+  requestContext.http.sourceIp member
+  (@thekid)
+
 ## 0.4.1 / 2021-08-29
 
 * Added various tests, increasing test coverage to 100%. See #3 - @thekid

src/main/php/com/amazon/aws/lambda/FromApiGateway.class.php

@@ -49,6 +49,7 @@ public function uri() {
 
   /** @return iterable */
   public function headers() {
+    yield 'remote-addr' => $this->event['requestContext']['http']['sourceIp'] ?? '127.0.0.1';
     yield from $this->event['headers'] ?? [];
     if (!empty($this->event['cookies'])) {
       yield 'cookie' => implode('; ', $this->event['cookies']);

src/test/php/com/amazon/aws/lambda/unittest/FromApiGatewayTest.class.php

@@ -28,7 +28,7 @@ private function fixture($method= 'GET', $query= '', $headers= [], $body= null)
           'method'    => $method,
           'path'      => '/default/test',
           'protocol'  => 'HTTP/1.1',
-          'sourceIp'  => '127.0.0.1',
+          'sourceIp'  => '192.168.178.1',
           'userAgent' => 'XP/Test'
         ],
         'requestId'    => 'JKJaXmPLvHcESHA=',
@@ -78,9 +78,9 @@ public function uri_including_query() {
   }
 
   #[Test, Values([[[]], [['accept' => '*/*', 'user-agent' => 'test']]])]
-  public function headers_include_cookies($headers) {
+  public function headers_include_cookies_and_remote_addr($headers) {
     Assert::equals(
-      ['cookie' => self::COOKIE] + $headers,
+      ['remote-addr' => '192.168.178.1', 'cookie' => self::COOKIE] + $headers,
       iterator_to_array($this->fixture('GET', '', $headers)->headers())
     );
   }