Rss-Bridge/bridges/InstagramBridge.php

279 lines
8.1 KiB
PHP

<?php
class InstagramBridge extends BridgeAbstract {
const MAINTAINER = 'pauder';
const NAME = 'Instagram Bridge';
const URI = 'https://www.instagram.com/';
const DESCRIPTION = 'Returns the newest images';
const PARAMETERS = array(
'Username' => array(
'u' => array(
'name' => 'username',
'required' => true
)
),
'Hashtag' => array(
'h' => array(
'name' => 'hashtag',
'required' => true
)
),
'Location' => array(
'l' => array(
'name' => 'location',
'required' => true
)
),
'global' => array(
'media_type' => array(
'name' => 'Media type',
'type' => 'list',
'required' => false,
'values' => array(
'All' => 'all',
'Video' => 'video',
'Picture' => 'picture',
'Multiple' => 'multiple',
),
'defaultValue' => 'all'
),
'direct_links' => array(
'name' => 'Use direct media links',
'type' => 'checkbox',
)
)
);
const USER_QUERY_HASH = '58b6785bea111c67129decbe6a448951';
const TAG_QUERY_HASH = '174a5243287c5f3a7de741089750ab3b';
const SHORTCODE_QUERY_HASH = '865589822932d1b43dfe312121dd353a';
protected function getInstagramUserId($username) {
if(is_numeric($username)) return $username;
$cacheFac = new CacheFactory();
$cacheFac->setWorkingDir(PATH_LIB_CACHES);
$cache = $cacheFac->create(Configuration::getConfig('cache', 'type'));
$cache->setScope(get_called_class());
$cache->setKey(array($username));
$key = $cache->loadData();
if($key == null) {
$data = getContents(self::URI . 'web/search/topsearch/?query=' . $username);
foreach(json_decode($data)->users as $user) {
if(strtolower($user->user->username) === strtolower($username)) {
$key = $user->user->pk;
}
}
if($key == null) {
returnServerError('Unable to find username in search result.');
}
$cache->saveData($key);
}
return $key;
}
public function collectData(){
$directLink = !is_null($this->getInput('direct_links')) && $this->getInput('direct_links');
$data = $this->getInstagramJSON($this->getURI());
if(!is_null($this->getInput('u'))) {
$userMedia = $data->data->user->edge_owner_to_timeline_media->edges;
} elseif(!is_null($this->getInput('h'))) {
$userMedia = $data->data->hashtag->edge_hashtag_to_media->edges;
} elseif(!is_null($this->getInput('l'))) {
$userMedia = $data->entry_data->LocationsPage[0]->graphql->location->edge_location_to_media->edges;
}
foreach($userMedia as $media) {
$media = $media->node;
switch($this->getInput('media_type')) {
case 'all': break;
case 'video':
if($media->__typename != 'GraphVideo' || !$media->is_video) continue 2;
break;
case 'picture':
if($media->__typename != 'GraphImage') continue 2;
break;
case 'multiple':
if($media->__typename != 'GraphSidecar') continue 2;
break;
default: break;
}
$item = array();
$item['uri'] = self::URI . 'p/' . $media->shortcode . '/';
if (isset($media->owner->username)) {
$item['author'] = $media->owner->username;
}
$textContent = $this->getTextContent($media);
$item['title'] = ($media->is_video ? '▶ ' : '') . $textContent;
$titleLinePos = strpos(wordwrap($item['title'], 120), "\n");
if ($titleLinePos != false) {
$item['title'] = substr($item['title'], 0, $titleLinePos) . '...';
}
if($directLink) {
$mediaURI = $media->display_url;
} else {
$mediaURI = self::URI . 'p/' . $media->shortcode . '/media?size=l';
}
switch($media->__typename) {
case 'GraphSidecar':
$data = $this->getInstagramSidecarData($item['uri'], $item['title']);
$item['content'] = $data[0];
$item['enclosures'] = $data[1];
break;
case 'GraphImage':
$item['content'] = '<a href="' . htmlentities($item['uri']) . '" target="_blank">';
$item['content'] .= '<img src="' . htmlentities($mediaURI) . '" alt="' . $item['title'] . '" />';
$item['content'] .= '</a><br><br>' . nl2br(htmlentities($textContent));
$item['enclosures'] = array($mediaURI);
break;
case 'GraphVideo':
$data = $this->getInstagramVideoData($item['uri'], $mediaURI);
$item['content'] = $data[0];
if($directLink) {
$item['enclosures'] = $data[1];
} else {
$item['enclosures'] = array($mediaURI);
}
$item['thumbnail'] = $mediaURI;
break;
default: break;
}
$item['timestamp'] = $media->taken_at_timestamp;
$this->items[] = $item;
}
}
// returns Sidecar(a post which has multiple media)'s contents and enclosures
protected function getInstagramSidecarData($uri, $postTitle) {
$mediaInfo = $this->getSinglePostData($uri);
$textContent = $this->getTextContent($mediaInfo);
$enclosures = array();
$content = '';
foreach($mediaInfo->edge_sidecar_to_children->edges as $singleMedia) {
$singleMedia = $singleMedia->node;
if($singleMedia->is_video) {
if(in_array($singleMedia->video_url, $enclosures)) continue; // check if not added yet
$content .= '<video controls><source src="' . $singleMedia->video_url . '" type="video/mp4"></video><br>';
array_push($enclosures, $singleMedia->video_url);
} else {
if(in_array($singleMedia->display_url, $enclosures)) continue; // check if not added yet
$content .= '<a href="' . $singleMedia->display_url . '" target="_blank">';
$content .= '<img src="' . $singleMedia->display_url . '" alt="' . $postTitle . '" />';
$content .= '</a><br>';
array_push($enclosures, $singleMedia->display_url);
}
}
$content .= '<br>' . nl2br(htmlentities($textContent));
return array($content, $enclosures);
}
// returns Video post's contents and enclosures
protected function getInstagramVideoData($uri, $mediaURI) {
$mediaInfo = $this->getSinglePostData($uri);
$textContent = $this->getTextContent($mediaInfo);
$content = '<video controls>';
$content .= '<source src="' . $mediaInfo->video_url . '" poster="' . $mediaURI . '" type="video/mp4">';
$content .= '<img src="' . $mediaURI . '" alt="">';
$content .= '</video><br>';
$content .= '<br>' . nl2br(htmlentities($textContent));
return array($content, array($mediaInfo->video_url));
}
protected function getTextContent($media) {
$textContent = '(no text)';
//Process the first element, that isn't in the node graph
if (count($media->edge_media_to_caption->edges) > 0) {
$textContent = trim($media->edge_media_to_caption->edges[0]->node->text);
}
return $textContent;
}
protected function getSinglePostData($uri) {
$shortcode = explode('/', $uri)[4];
$data = getContents(self::URI .
'graphql/query/?query_hash=' .
self::SHORTCODE_QUERY_HASH .
'&variables={"shortcode"%3A"' .
$shortcode .
'"}');
return json_decode($data)->data->shortcode_media;
}
protected function getInstagramJSON($uri) {
if(!is_null($this->getInput('u'))) {
$userId = $this->getInstagramUserId($this->getInput('u'));
$data = getContents(self::URI .
'graphql/query/?query_hash=' .
self::USER_QUERY_HASH .
'&variables={"id"%3A"' .
$userId .
'"%2C"first"%3A10}');
return json_decode($data);
} elseif(!is_null($this->getInput('h'))) {
$data = getContents(self::URI .
'graphql/query/?query_hash=' .
self::TAG_QUERY_HASH .
'&variables={"tag_name"%3A"' .
$this->getInput('h') .
'"%2C"first"%3A10}');
return json_decode($data);
} else {
$html = getContents($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($this->getInput('h'));
} elseif(!is_null($this->getInput('l'))) {
return self::URI . 'explore/locations/' . urlencode($this->getInput('l'));
}
return parent::getURI();
}
}