Better output mechanisms for URL Type

Author: splitbrain

_test/Type_Url.test.php

@@ -50,6 +50,22 @@ public function validateSuccessProvider() {
         );
     }
 
+    /**
+     * Provide data to test autoshortening feature
+     *
+     * @return array
+     */
+    public function generateAutoTitleProvider() {
+        return [
+            ['https://foobar.com', 'foobar.com'],
+            ['https://foobar.com/', 'foobar.com'],
+            ['https://www.foobar.com/', 'foobar.com'],
+            ['https://www.foobar.com/test', 'foobar.com/…'],
+            ['https://www.foobar.com/?test', 'foobar.com/…'],
+            ['https://www.foobar.com/#hash', 'foobar.com/…'],
+        ];
+    }
+
     /**
      * @expectedException \dokuwiki\plugin\struct\meta\ValidationException
      * @dataProvider validateFailProvider
@@ -67,4 +83,26 @@ public function test_validate_success($value, $prefix, $postfix, $autoscheme) {
         $url->validate($value);
         $this->assertTrue(true); // we simply check that no exceptions are thrown
     }
+
+    /**
+     * @dataProvider generateAutoTitleProvider
+     */
+    public function test_generateAutoTitle($input, $title) {
+        $url = new Url(['autoshorten' => true]);
+        $result = $this->callInaccessibleMethod($url, 'generateTitle', [$input]);
+        $this->assertSame($title, $result);
+
+        $url = new Url(['autoshorten' => false]);
+        $result = $this->callInaccessibleMethod($url, 'generateTitle', [$input]);
+        $this->assertSame($input, $result);
+    }
+
+    public function test_generateFixedTitle() {
+        $input = 'https://www.foobar.com/long';
+        $title = 'oink';
+
+        $url = new Url(['fixedtitle' => $title]);
+        $result = $this->callInaccessibleMethod($url, 'generateTitle', [$input]);
+        $this->assertSame($title, $result);
+    }
 }

types/Url.php

@@ -11,6 +11,8 @@ class Url extends Text
         'autoscheme' => 'https',
         'prefix' => '',
         'postfix' => '',
+        'fixedtitle' => '',
+        'autoshorten' => true,
     );
 
     /**
@@ -43,10 +45,38 @@ public function validate($rawvalue)
     public function renderValue($value, \Doku_Renderer $R, $mode)
     {
         $url = $this->buildURL($value);
-        $R->externallink($url);
+        $title = $this->generateTitle($url);
+        $R->externallink($url, $title);
         return true;
     }
 
+    /**
+     * Make a label for the link
+     *
+     * @param $url
+     * @return string
+     */
+    protected function generateTitle($url) {
+        if($this->config['fixedtitle']) return $this->config['fixedtitle'];
+        if(!$this->config['autoshorten']) return $url;
+
+        $parsed = parse_url($url);
+
+        $title = $parsed['host'];
+        $title = preg_replace('/^www\./i', '', $title);
+        if(isset($parsed['path']) && $parsed['path'] === '/') {
+            unset($parsed['path']);
+        }
+        if(
+            isset($parsed['path']) ||
+            isset($parsed['query']) ||
+            isset($parsed['fragment'])
+        ) {
+            $title .= '/…';
+        }
+        return $title;
+    }
+
     /**
      * Creates the full URL and applies the autoscheme if needed
      *