1 files changed, 103 insertions, 7 deletions
diff --git a/formats/JsonFormat.php b/formats/JsonFormat.php
index c3f85f94..fafe7a5a 100644
--- a/formats/JsonFormat.php
+++ b/formats/JsonFormat.php
@@ -1,17 +1,109 @@
 <?php
 /**
-* Json
-* Builds a JSON string from $this->items and return it to browser.
-*/
+ * JsonFormat - JSON Feed Version 1
+ * https://jsonfeed.org/version/1
+ *
+ * Validators:
+ * https://validator.jsonfeed.org
+ * https://github.com/vigetlabs/json-feed-validator
+ */
 class JsonFormat extends FormatAbstract {
+	const VENDOR_EXCLUDES = array(
+		'author',
+		'title',
+		'uri',
+		'timestamp',
+		'content',
+		'enclosures',
+		'categories',
+	);
+
 	public function stringify(){
-		$items = $this->getItems();
-		$data = array();
+		$urlScheme	= (isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] == 'on') ? 'https://' : 'http://';
+		$urlHost	= (isset($_SERVER['HTTP_HOST'])) ? $_SERVER['HTTP_HOST'] : '';
+		$urlPath	= (isset($_SERVER['PATH_INFO'])) ? $_SERVER['PATH_INFO'] : '';
+		$urlRequest	= (isset($_SERVER['REQUEST_URI'])) ? $_SERVER['REQUEST_URI'] : '';
+
+		$extraInfos = $this->getExtraInfos();
 
-		foreach($items as $item) {
-			$data[] = $item->toArray();
+		$data = array(
+			'version'		=> 'https://jsonfeed.org/version/1',
+			'title'			=> (!empty($extraInfos['name'])) ? $extraInfos['name'] : $urlHost,
+			'home_page_url'	=> (!empty($extraInfos['uri'])) ? $extraInfos['uri'] : REPOSITORY,
+			'feed_url'		=> $urlScheme . $urlHost . $urlRequest
+		);
+
+		if (!empty($extraInfos['icon'])) {
+			$data['icon'] = $extraInfos['icon'];
+			$data['favicon'] = $extraInfos['icon'];
 		}
 
+		$items = array();
+		foreach ($this->getItems() as $item) {
+			$entry = array();
+
+			$entryAuthor		= $item->getAuthor();
+			$entryTitle			= $item->getTitle();
+			$entryUri			= $item->getURI();
+			$entryTimestamp		= $item->getTimestamp();
+			$entryContent		= $this->sanitizeHtml($item->getContent());
+			$entryEnclosures	= $item->getEnclosures();
+			$entryCategories	= $item->getCategories();
+
+			$vendorFields = $item->toArray();
+			foreach (self::VENDOR_EXCLUDES as $key) {
+				unset($vendorFields[$key]);
+			}
+
+			$entry['id'] = $entryUri;
+
+			if (!empty($entryTitle)) {
+				$entry['title'] = $entryTitle;
+			}
+			if (!empty($entryAuthor)) {
+				$entry['author'] = array(
+					'name' => $entryAuthor
+				);
+			}
+			if (!empty($entryTimestamp)) {
+				$entry['date_modified'] = gmdate(DATE_ATOM, $entryTimestamp);
+			}
+			if (!empty($entryUri)) {
+				$entry['url'] = $entryUri;
+			}
+			if (!empty($entryContent)) {
+				if ($this->isHTML($entryContent)) {
+					$entry['content_html'] = $entryContent;
+				} else {
+					$entry['content_text'] = $entryContent;
+				}
+			}
+			if (!empty($entryEnclosures)) {
+				$entry['attachments'] = array();
+				foreach ($entryEnclosures as $enclosure) {
+					$entry['attachments'][] = array(
+						'url'		=> $enclosure,
+						'mime_type'	=> getMimeType($enclosure)
+					);
+				}
+			}
+			if (!empty($entryCategories)) {
+				$entry['tags'] = array();
+				foreach ($entryCategories as $category) {
+					$entry['tags'][] = $category;
+				}
+			}
+			if (!empty($vendorFields)) {
+				$entry['_rssbridge'] = $vendorFields;
+			}
+
+			if (empty($entry['id']))
+				$entry['id'] = hash('sha1', $entryTitle . $entryContent);
+
+			$items[] = $entry;
+		}
+		$data['items'] = $items;
+
 		$toReturn = json_encode($data, JSON_PRETTY_PRINT);
 
 		// Remove invalid non-UTF8 characters
@@ -27,4 +119,8 @@ class JsonFormat extends FormatAbstract {
 
 		return parent::display();
 	}
+
+	private function isHTML($text) {
+		return (strlen(strip_tags($text)) != strlen($text));
+	}
 }