1 files changed, 149 insertions, 0 deletions
diff --git a/bridges/InstagramBridge.php b/bridges/InstagramBridge.php
new file mode 100644
index 0000000..2539da2
--- /dev/null
+++ b/bridges/InstagramBridge.php
@@ -0,0 +1,149 @@
+<?php
+class InstagramBridge extends BridgeAbstract {
+
+	const MAINTAINER = 'pauder';
+	const NAME = 'Instagram Bridge';
+	const URI = 'https://instagram.com/';
+	const DESCRIPTION = 'Returns the newest images';
+
+	const PARAMETERS = array(
+		array(
+			'u' => array(
+				'name' => 'username',
+				'required' => true
+			)
+		),
+		array(
+			'h' => array(
+				'name' => 'hashtag',
+				'required' => true
+			)
+		),
+		'global' => array(
+			'media_type' => array(
+				'name' => 'Media type',
+				'type' => 'list',
+				'required' => false,
+				'values' => array(
+					'All' => 'all',
+					'Story' => 'story',
+					'Video' => 'video',
+					'Picture' => 'picture',
+				),
+				'defaultValue' => 'all'
+			)
+		)
+
+	);
+
+	public function collectData(){
+
+		if(!is_null($this->getInput('h')) && $this->getInput('media_type') == 'story') {
+			returnClientError('Stories are not supported for hashtags!');
+		}
+
+		$data = $this->getInstagramJSON($this->getURI());
+
+		if(!is_null($this->getInput('u'))) {
+			$userMedia = $data->entry_data->ProfilePage[0]->graphql->user->edge_owner_to_timeline_media->edges;
+		} else {
+			$userMedia = $data->entry_data->TagPage[0]->graphql->hashtag->edge_hashtag_to_media->edges;
+		}
+
+		foreach($userMedia as $media) {
+			$media = $media->node;
+
+			if(!is_null($this->getInput('u'))) {
+				switch($this->getInput('media_type')) {
+					case 'all': break;
+					case 'video':
+						if($media->__typename != 'GraphVideo') continue 2;
+						break;
+					case 'picture':
+						if($media->__typename != 'GraphImage') continue 2;
+						break;
+					case 'story':
+						if($media->__typename != 'GraphSidecar') continue 2;
+						break;
+					default: break;
+				}
+			} else {
+				if($this->getInput('media_type') == 'video' && !$media->is_video) continue;
+			}
+
+			$item = array();
+			$item['uri'] = self::URI . 'p/' . $media->shortcode . '/';
+
+			if (isset($media->edge_media_to_caption->edges[0]->node->text)) {
+				$item['title'] = $media->edge_media_to_caption->edges[0]->node->text;
+			} else {
+				$item['title'] = basename($media->display_url);
+			}
+
+			if(!is_null($this->getInput('u')) && $media->__typename == 'GraphSidecar') {
+				$data = $this->getInstagramStory($item['uri']);
+				$item['content'] = $data[0];
+				$item['enclosures'] = $data[1];
+			} else {
+				$item['content'] = '<img src="' . htmlentities($media->display_url) . '" alt="'. $item['title'] . '" />';
+				$item['enclosures'] = array($media->display_url);
+			}
+
+			$item['timestamp'] = $media->taken_at_timestamp;
+
+			$this->items[] = $item;
+		}
+	}
+
+	protected function getInstagramStory($uri) {
+
+		$data = $this->getInstagramJSON($uri);
+		$mediaInfo = $data->entry_data->PostPage[0]->graphql->shortcode_media;
+
+		//Process the first element, that isn't in the node graph
+		$caption = $mediaInfo->edge_media_to_caption->edges[0]->node->text;
+
+		$enclosures = [$mediaInfo->display_url];
+		$content = '<img src="' . htmlentities($mediaInfo->display_url) . '" alt="'. $caption . '" />';
+
+		foreach($mediaInfo->edge_sidecar_to_children->edges as $media) {
+
+			$content .= '<img src="' . htmlentities($media->node->display_url) . '" alt="'. $caption . '" />';
+			$enclosures[] = $media->node->display_url;
+
+		}
+
+		return [$content, $enclosures];
+
+	}
+
+	protected function getInstagramJSON($uri) {
+
+		$html = getContents($uri)
+			or returnServerError('Could not request Instagram.');
+		$scriptRegex = '/window\._sharedData = (.*);<\/script>/';
+
+		preg_match($scriptRegex, $html, $matches, PREG_OFFSET_CAPTURE, 0);
+
+		return json_decode($matches[1][0]);
+
+	}
+
+	public function getName(){
+		if(!is_null($this->getInput('u'))) {
+			return $this->getInput('u') . ' - Instagram Bridge';
+		}
+
+		return parent::getName();
+	}
+
+	public function getURI(){
+		if(!is_null($this->getInput('u'))) {
+			return self::URI . urlencode($this->getInput('u'));
+		} elseif(!is_null($this->getInput('h'))) {
+			return self::URI . 'explore/tags/' . urlencode($this->getInput('h'));
+		}
+
+		return parent::getURI();
+	}
+}