Add laravel 6 support

composer.json

@@ -18,8 +18,8 @@
     ],
     "require": {
         "php" : "^7.0",
-        "illuminate/support": "^5.3",
-        "illuminate/http": "^5.3",
+        "illuminate/support": "~5.3|~6.0",
+        "illuminate/http": "~5.3|~6.0",
         "symfony/dom-crawler": "^2.7|^3.0|^4.0",
         "symfony/css-selector": "^2.7|^3.0|^4.0"
     },

src/Middleware/AddHttp2ServerPush.php

@@ -3,6 +3,7 @@
 namespace JacobBennett\Http2ServerPush\Middleware;
 
 use Closure;
+use Illuminate\Support\Str;
 use Illuminate\Http\Request;
 use Illuminate\Http\Response;
 use Symfony\Component\DomCrawler\Crawler;
@@ -43,7 +44,7 @@ public function getConfig($key, $default=false) {
         }
         return config('http2serverpush.'.$key, $default);
     }
-    
+
     /**
      * @param \Illuminate\Http\Response $response
      *
@@ -69,7 +70,7 @@ protected function generateAndAttachLinkHeaders(Response $response, $limit = nul
                 return !preg_match('%('.$exclude_keywords->implode('|').')%i', $value);
             })
             ->take($limit);
-            
+
         $sizeLimit = $sizeLimit ?? max(1, intval($this->getConfig('size_limit', 32*1024)));
         $headersText = trim($headers->implode(','));
         while(strlen($headersText) > $sizeLimit) {
@@ -136,10 +137,10 @@ private function buildLinkHeaderString($url)
         ];
 
         $type = collect($linkTypeMap)->first(function ($type, $extension) use ($url) {
-            return str_contains(strtoupper($url), $extension);
+            return Str::contains(strtoupper($url), $extension);
         });
-        
-        
+
+
         if(!preg_match('%^https?://%i', $url)) {
             $basePath = $this->getConfig('base_path', '/');
             $url = $basePath . ltrim($url, $basePath);

tests/AddHttp2ServerPushTest.php

@@ -3,6 +3,7 @@
 namespace JacobBennett\Http2ServerPush\Test;
 
 use Illuminate\Http\Request;
+use Illuminate\Support\Str;
 use JacobBennett\Http2ServerPush\Middleware\AddHttp2ServerPush;
 use Symfony\Component\HttpFoundation\Response;
 
@@ -14,7 +15,7 @@ public function setUp()
         $this->middleware = new AddHttp2ServerPush();
     }
 
-    
+
     /** @test */
     public function it_will_not_exceed_size_limit()
     {
@@ -27,7 +28,7 @@ public function it_will_not_exceed_size_limit()
         $this->assertTrue(strlen($response->headers->get('link')) <= $limit );
         $this->assertCount(1, explode(",", $response->headers->get('link')));
     }
-    
+
     /** @test */
     public function it_will_not_add_excluded_asset()
     {
@@ -36,10 +37,10 @@ public function it_will_not_add_excluded_asset()
         $response = $this->middleware->handle($request, $this->getNext('pageWithCssAndJs'), null, null, ['thing']);
 
         $this->assertTrue($this->isServerPushResponse($response));
-        $this->assertTrue(!str_contains($response->headers, 'thing'));
+        $this->assertTrue(!Str::contains($response->headers, 'thing'));
         $this->assertCount(1, explode(",", $response->headers->get('link')));
     }
-    
+
     /** @test */
     public function it_will_not_modify_a_response_with_no_server_push_assets()
     {
@@ -114,8 +115,8 @@ public function it_will_return_correct_push_headers_for_multiple_assets()
         $response = $this->middleware->handle($request, $this->getNext('pageWithCssAndJs'));
 
         $this->assertTrue($this->isServerPushResponse($response));
-        $this->assertTrue(str_contains($response->headers, 'style'));
-        $this->assertTrue(str_contains($response->headers, 'script'));
+        $this->assertTrue(Str::contains($response->headers, 'style'));
+        $this->assertTrue(Str::contains($response->headers, 'script'));
         $this->assertCount(2, explode(",", $response->headers->get('link')));
     }