Check apache_request_headers() as last resort, fixes tuupola#14

phpunit.xml

@@ -8,6 +8,7 @@
     <filter>
         <blacklist>
             <directory suffix=".php">vendor/</directory>
+            <directory suffix=".php">tests/</directory>
         </blacklist>
     </filter>
 </phpunit>

src/JwtAuthentication.php

@@ -175,11 +175,18 @@ public function fetchToken(RequestInterface $request)
         }
 
         /* Nothing in environment, try header instead */
-        if ("" === $header) {
+        if (empty($header)) {
             $message = "Using token from request header";
-            $header = $request->getHeader("Authorization");
-            $header = isset($header[0]) ? $header[0] : "";
+            $headers = $request->getHeader("Authorization");
+            $header = isset($headers[0]) ? $headers[0] : "";
         }
+
+        /* Try apache_request_headers() as last resort */
+        if (empty($header) && function_exists("apache_request_headers")) {
+            $headers = apache_request_headers();
+            $header = isset($headers["Authorization"]) ? $headers["Authorization"] : "";
+        }
+
         if (preg_match("/Bearer\s+(.*)$/i", $header, $matches)) {
             $this->log(LogLevel::DEBUG, $message);
             return $matches[1];

tests/apache_request_headers.php

@@ -0,0 +1,8 @@
+<?php
+
+if (!function_exists("apache_request_headers")) {
+    function apache_request_headers()
+    {
+        return [];
+    }
+}

tests/bootstrap.php

@@ -1,3 +1,4 @@
 <?php
 
 $loader = require dirname(__FILE__) . "/../vendor/autoload.php";
+$loader = require dirname(__FILE__) . "/apache_request_headers.php";