Merge pull request #106 from zyuhel/master

Base Tags base functionality.

Author: oscarotero

README.md

@@ -39,6 +39,7 @@ $info->title; //The page title
 $info->description; //The page description
 $info->url; //The canonical url
 $info->type; //The page type (link, video, image, rich)
+$info->tags; //The page keywords (tags)
 
 $info->images; //List of all images found in the page
 $info->image; //The image choosen as main image

src/Adapters/Adapter.php

@@ -201,6 +201,14 @@ public function getType()
 
         return 'link';
     }
+    
+    /**
+     * {@inheritdoc}
+     */
+    public function getTags()
+    {
+        return Utils::getAllValues(Utils::getData($this->providers, 'tags'));
+    }
 
     /**
      * {@inheritdoc}

src/Adapters/N500px.php

@@ -59,5 +59,7 @@ public function run()
         //order is important
         $this->addProvider('oembed', new Providers\OEmbed());
         $this->addProvider('opengraph', new Providers\OpenGraph());
+        $this->addProvider('html', new Providers\Html());
+
     }
 }

src/Bag.php

@@ -90,6 +90,22 @@ public function getAll()
      */
     public function has($name)
     {
+        if (strpos($name, '[') !== false) {
+            $names = explode('[', str_replace(']', '', $name));
+            $key = array_shift($names);
+            $item = isset($this->parameters[$key]) ? $this->parameters[$key] : [];
+
+            foreach ($names as $key) {
+                if (!isset($item[$key])) {
+                    return false;
+                }
+
+                $item = $item[$key];
+            }
+
+            return isset($item);
+        }
+
         return isset($this->parameters[$name]);
     }
 }

src/DataInterface.php

@@ -30,6 +30,13 @@ public function getDescription();
      */
     public function getType();
 
+    /**
+     * Gets the tags of the url
+     *
+     * @return array
+     */
+    public function getTags();
+
     /**
      * Gets the source url (feed, api, etc).
      *

src/Providers/Html.php

@@ -65,6 +65,15 @@ public function getType()
         return $this->bag->has('video_src') ? 'video' : null;
     }
 
+    /**
+     * {@inheritdoc}
+     */
+    public function getTags()
+    {
+        return $this->bag->has('keywords') ? array_map('trim', explode(',',$this->bag->get('keywords'))) : [];
+    }
+
+
     /**
      * {@inheritdoc}
      */

src/Providers/OEmbed.php

@@ -101,6 +101,21 @@ public function getType()
         }
     }
 
+    /**
+     * {@inheritdoc}
+     */
+    public function getTags()
+    {
+        if ($this->bag->has('meta[keywords]')) {
+            //it means we are using iframe.ly api
+            return array_map('trim', explode(',',$this->bag->get('meta[keywords]')));
+        }
+        
+        return [];
+
+        
+    }
+
     /**
      * {@inheritdoc}
      */

src/Providers/Provider.php

@@ -49,6 +49,13 @@ public function getType()
     {
     }
 
+    /**
+     * {@inheritdoc}
+     */
+    public function getTags()
+    {
+        return [];
+    }
     /**
      * {@inheritdoc}
      */

src/Utils.php

@@ -21,10 +21,8 @@ public static function getMetas(\DOMDocument $html)
         foreach ($html->getElementsByTagName('meta') as $meta) {
             $name = trim(strtolower($meta->getAttribute('property') ?: $meta->getAttribute('name')));
             $value = $meta->getAttribute('content') ?: $meta->getAttribute('value');
-
             $metas[] = [$name, $value, $meta];
         }
-
         return $metas;
     }
 
@@ -68,7 +66,6 @@ public static function getData(array $providers, $name, Url $url = null)
 
         foreach ($providers as $key => $provider) {
             $value = $provider->$method();
-
             if (empty($value)) {
                 continue;
             }
@@ -92,7 +89,6 @@ public static function getData(array $providers, $name, Url $url = null)
                 }
             }
         }
-
         return array_values($values);
     }
 
@@ -176,6 +172,28 @@ public static function getFirstValue(array $values, $returnKey = false)
         }
     }
 
+
+    /**
+     * Returns values as array
+     *
+     * @param array $values    The array provided by self::getData()
+     * @param bool  $returnKey Whether or not return the key instead the value
+     *
+     * @return array
+     */
+    public static function getAllValues(array $values, $returnKey = false)
+    {
+        if ($returnKey){
+            return array_keys($values);
+        } 
+        $return_value=[];
+        foreach ($values as $value)
+        {
+            $return_value[]=$value['value'];
+        }        
+        return $return_value;
+    }
+
     /**
      * Returns the most popular value in an array.
      *

tests/TestCaseBase.php

@@ -56,6 +56,7 @@ protected function assertEmbed($url, array $info, array $config = array())
                 case 'height':
                 case 'imageWidth':
                 case 'imageHeight':
+                case 'tags':
                     $this->assertSame($value, $i->$name);
                     break;