Merge pull request #18 from splitbrain-forks/jsonfeed

Initial Implementation for JSON Feed 1.1

lib/Creator/JSONCreator.php

@@ -0,0 +1,66 @@
+<?php
+
+/**
+ * JSONCreator is a FeedCreator that implements the JSON Feed specification,
+ * as in https://jsonfeed.org/version/1.1
+ *
+ * @author Andreas Gohr <andi@splitbrain.org>
+ */
+class JSONCreator extends FeedCreator
+{
+    /** @inheritdoc */
+    public function createFeed()
+    {
+        $data = array();
+
+        $data['version'] = 'https://jsonfeed.org/version/1.1';
+        $data['title'] = (string)$this->title;
+        $data['home_page_url'] = (string)$this->link;
+        $data['feed_url'] = (string)$this->syndicationURL;
+        $data['description'] = (string)$this->description;
+        $data['user_comment'] = 'Created by ' . FEEDCREATOR_VERSION;
+        if ($this->image != null) {
+            $data['icon'] = $this->image->url;
+        }
+        if ($this->language != '') {
+            $data['language'] = $this->language;
+        }
+
+        $data['items'] = array();
+        foreach ($this->items as $item) {
+            $entry = array();
+            $entry['id'] = $item->guid ? (string)$item->guid : (string)$item->link;
+            $entry['url'] = (string)$item->link;
+            if ($item->source) {
+                $entry['external_url'] = (string)$item->source;
+            }
+            $entry['title'] = strip_tags((string)$item->title);
+            $entry['content_text'] = strip_tags((string)$item->description);
+            $entry['content_html'] = (string)$item->description;
+            $entry['date_published'] = (new FeedDate($item->date))->iso8601();
+            if ($item->author) {
+                // We only support one author, JSONFeed 1.1 accepts multiple
+                $entry['authors'] = array(array('name' => (string)$item->author));
+                // 1.0 only supported one, for compatibility we set it as well
+                $entry['author'] = array('name' => (string)$item->author);
+            }
+            if ($item->category) {
+                $entry['tags'] = (array)$item->category;
+            }
+            if ($item->enclosure) {
+                // We only support one enclosure, JSONFeed 1.1 accepts multiple
+                $entry['attachments'] = array(
+                    array(
+                        'url' => $item->enclosure['url'],
+                        'mime_type' => $item->enclosure['type'],
+                        'size_in_bytes' => $item->enclosure['length']
+                    )
+                );
+            }
+
+            $data['items'][] = $entry;
+        }
+
+        return json_encode($data);
+    }
+}

lib/UniversalFeedCreator.php

@@ -88,6 +88,10 @@ protected function _setFormat($format)
                 $this->_feed = new JSCreator();
                 break;
 
+            case "JSON":
+                $this->_feed = new JSONCreator();
+                break;
+
             default:
                 $this->_feed = new RSSCreator091();
                 break;

test/Creator/JSONCreatorTest.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace Creator;
+use FeedItem;
+use PHPUnit_Framework_TestCase;
+use UniversalFeedCreator;
+
+class JSONCreatorTest extends PHPUnit_Framework_TestCase
+{
+    public function test_create_empty_feed()
+    {
+        $creator = new UniversalFeedCreator;
+        $creator->description = 'Feed Description';
+        $item = new FeedItem();
+        $item->date = time();
+        $item->category = array('1', '2');
+        $creator->addItem($item);
+
+        $feed = $creator->createFeed('JSON');
+
+        $parsed = json_decode($feed, true);
+        $this->assertEquals('Feed Description', $parsed['description']);
+    }
+}