Added strict mode to the filter

Author: WyriHaximus

README.md

@@ -102,6 +102,8 @@ new OrFilter([
 ])
 ```
 
+The filter comes with a third `strict` parameter where instead of declaring out of scope on missing an URL part it return `false`.
+
 ## Tests
 
 To run the unit test suite:

src/Filter/UrlSectionFilter.php

@@ -17,15 +17,23 @@ class UrlSectionFilter implements FilterInterface
      */
     protected $section;
 
+    /**
+     * @var null|false
+     */
+    protected $strictResponse = null;
+
     /**
      *
      * @param string $section
      * @param string $value
      */
-    public function __construct($section, $value)
+    public function __construct($section, $value, $strict = false)
     {
         $this->section = $section;
         $this->value = $value;
+        if ($strict === true) {
+            $this->strictResponse = false;
+        }
     }
 
     /**
@@ -40,7 +48,7 @@ public function filter(EventInterface $event)
 
         $section = $event->getUrlSection($this->section);
         if ($section === false) {
-            return null;
+            return $this->strictResponse;
         }
 
         $pattern = '/^' . str_replace('*', '.*', $this->value) . '$/';

tests/Filter/UrlSectionFilterTest.php

@@ -48,4 +48,46 @@ public function testFilter($section, $value, $url, $output)
         $filter = new UrlSectionFilter($section, $value);
         $this->assertSame($output, $filter->filter($urlEvent));
     }
+
+    public function provideStrictFilter()
+    {
+        yield [
+            'host',
+            'phergie.org',
+            'http://phergie.org/',
+            true,
+        ];
+
+        yield [
+            'host',
+            'phergie.org',
+            'http://www.phergie.org/',
+            false,
+        ];
+
+        yield [
+            'host',
+            '*.org',
+            'http://phergie.org/',
+            true,
+        ];
+
+        yield [
+            'port',
+            80,
+            'http://phergie.org/',
+            false,
+        ];
+    }
+
+    /**
+     * @dataProvider provideStrictFilter
+     */
+    public function testStrictFilter($section, $value, $url, $output)
+    {
+        $event = Phake::mock(EventInterface::class);
+        $urlEvent = new UrlEvent($url, $event);
+        $filter = new UrlSectionFilter($section, $value, true);
+        $this->assertSame($output, $filter->filter($urlEvent));
+    }
 }