improved github embedding. Now embed also geojson and 3d files

Author: oscarotero

src/Adapters/Github.php

@@ -16,6 +16,7 @@ public static function check(Request $request)
     {
         return $request->match([
             'https://gist.github.com/*/*',
+            'https://github.com/*',
         ]);
     }
 
@@ -24,24 +25,44 @@ public static function check(Request $request)
      */
     public function run()
     {
-        $this->addProvider('gist', new Api\Gist());
+        if ($this->request->getHost() === 'gist.github.com') {
+            $this->addProvider('gist', new Api\Gist());
+        }
 
         parent::run();
     }
 
     /**
      * {@inheritdoc}
      */
-    public function getProviderName()
+    public function getUrl()
     {
-        return 'Gist';
+        //Open graph returns as canonical url the main repo url, instead the file
+        return $this->request->getUrl();
     }
 
     /**
      * {@inheritdoc}
      */
-    public function getProviderUrl()
+    public function getCode()
     {
-        return 'https://gist.github.com';
+        if ($this->request->match('https://github.com/*/*/blob/*')) {
+            $username = $this->request->getDirectoryPosition(0);
+            $repo = $this->request->getDirectoryPosition(1);
+            $ref = $this->request->getDirectoryPosition(3);
+            $path_to_file = implode('/', $this->request->getSlicePath(4));
+
+            switch ($this->request->getExtension()) {
+                case 'geojson':
+                    //https://help.github.com/articles/mapping-geojson-files-on-github/#embedding-your-map-elsewhere
+                    return "<script src=\"https://embed.githubusercontent.com/view/geojson/{$username}/{$repo}/{$ref}/{$path_to_file}\"></script>";
+
+                case 'stl':
+                    //https://help.github.com/articles/3d-file-viewer/#embedding-your-model-elsewhere
+                    return "<script src=\"https://embed.githubusercontent.com/view/3d/{$username}/{$repo}/{$ref}/{$path_to_file}\"></script>";
+            }
+        }
+
+        return parent::getCode();
     }
 }

src/Url.php

@@ -215,6 +215,25 @@ public function getDirectories()
         return !empty($this->info['path']) ? '/'.implode('/', $this->info['path']).'/' : '/';
     }
 
+    /**
+     * Slice path
+     *
+     * @param int      $offset
+     * @param int|null $length
+     * 
+     * @return array
+     */
+    public function getSlicePath($offset, $length = null)
+    {
+        $array = explode('/', $this->getPath());
+
+        if (empty($array[0])) {
+            array_shift($array);
+        }
+
+        return array_slice($array, $offset, $length);
+    }
+
     /**
      * Return the url path
      *

tests/GithubTest.php

@@ -1,14 +1,34 @@
 <?php
 class GithubTest extends PHPUnit_Framework_TestCase
 {
-    public function testOne()
+    public function testGist()
     {
         $info = Embed\Embed::create('https://gist.github.com/oscarotero/7749998');
 
-        $this->assertEquals($info->title, 'oscarotero/Git-cheatsheet.sh');
-        $this->assertEquals($info->imageWidth, 140);
-        $this->assertEquals($info->imageHeight, 140);
+        $this->assertEquals($info->title, 'Git-cheatsheet.sh');
+        $this->assertEquals($info->imageWidth, 400);
+        $this->assertEquals($info->imageHeight, 400);
         $this->assertEquals($info->type, 'rich');
         $this->assertEquals($info->providerName, 'Gist');
     }
+
+    public function testGeojson()
+    {
+        $info = Embed\Embed::create('https://github.com/benbalter/dc-wifi-social/blob/master/bars.geojson');
+
+        $this->assertEquals($info->title, 'benbalter/dc-wifi-social');
+        $this->assertEquals($info->code, '<script src="https://embed.githubusercontent.com/view/geojson/benbalter/dc-wifi-social/master/bars.geojson"></script>');
+        $this->assertEquals($info->type, 'rich');
+        $this->assertEquals($info->providerName, 'GitHub');
+    }
+
+    public function test3d()
+    {
+        $info = Embed\Embed::create('https://github.com/skalnik/secret-bear-clip/blob/master/stl/clip.stl');
+
+        $this->assertEquals($info->title, 'skalnik/secret-bear-clip');
+        $this->assertEquals($info->code, '<script src="https://embed.githubusercontent.com/view/3d/skalnik/secret-bear-clip/master/stl/clip.stl"></script>');
+        $this->assertEquals($info->type, 'rich');
+        $this->assertEquals($info->providerName, 'GitHub');
+    }
 }