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[InstagramEmbedBridge] Add a new Instagram Bridge based on the embed url #4060

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[InstagramEmbedBridge] Add a new Instagram Bridge based on the embed url #4060

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224 changes: 224 additions & 0 deletions bridges/InstagramEmbedBridge.php
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<?php

class InstagramEmbedBridge extends BridgeAbstract
{
const MAINTAINER = 'sysadminstory';
const NAME = 'Instagram Embed Bridge';
const URI = 'https://www.instagram.com/';
const DESCRIPTION = 'Returns the newest Instagram from a specific usernane using the Instagram Embed page';

const PARAMETERS = [
'Username' => [
'u' => [
'name' => 'username',
'exampleValue' => 'aesoprockwins',
'required' => true
]
],
'global' => [
'media_type' => [
'name' => 'Media type',
'type' => 'list',
'required' => false,
'values' => [
'All' => 'all',
'Video' => 'video',
'Picture' => 'picture',
'Multiple' => 'multiple',
],
'defaultValue' => 'all'
],
'direct_links' => [
'name' => 'Use direct media links',
'type' => 'checkbox',
]
]

];

const TEST_DETECT_PARAMETERS = [
'https://www.instagram.com/metaverse' => ['context' => 'Username', 'u' => 'metaverse'],
'https://instagram.com/metaverse' => ['context' => 'Username', 'u' => 'metaverse'],
'http://www.instagram.com/metaverse' => ['context' => 'Username', 'u' => 'metaverse'],
];

public function collectData()
{
$username = $this->getInput('u');
$directLink = !is_null($this->getInput('direct_links')) && $this->getInput('direct_links');

// Get the HTML code of the profile embed page, and extract the JSON of it
$html = getSimpleHTMLDOMCached(self::URI . $username . '/embed/');
$jsCode = $html->find('body', 0)->find('script', 3)->innertext;
$regex = '#"contextJSON":"(.*)"}\]\],\["NavigationMetrics"#m';
preg_match($regex, $jsCode, $matches);
$jsVariable = $matches[1];
$jsonString = stripcslashes($jsVariable);
$jsonData = Json::decode($jsonString, false);
$medias = $jsonData->context->graphql_media;

foreach ($medias as $graphqlMedia) {
$media = $graphqlMedia->shortcode_media;
switch ($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 = [];
$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';
}

$pattern = ['/\@([\w\.]+)/', '/#([\w\.]+)/'];
$replace = [
'<a href="https://www.instagram.com/$1">@$1</a>',
'<a href="https://www.instagram.com/explore/tags/$1">#$1</a>'];

switch ($media->__typename) {
case 'GraphSidecar':
$data = $this->getInstagramSidecarData($item['uri'], $item['title'], $media, $textContent);
$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'] . '" />';
$item['content'] .= '</a><br><br>' . nl2br(preg_replace($pattern, $replace, htmlentities($textContent)));
$item['enclosures'] = [$mediaURI];
break;
case 'GraphVideo':
$data = $this->getInstagramVideoData($item['uri'], $mediaURI, $media, $textContent);
$item['content'] = $data[0];
if ($directLink) {
$item['enclosures'] = $data[1];
} else {
$item['enclosures'] = [$mediaURI];
}
$item['thumbnail'] = $mediaURI;
break;
default:
break;
}
$item['timestamp'] = $media->taken_at_timestamp;

$this->items[] = $item;
}
}


public function getName()
{
if (!is_null($this->getInput('u'))) {
return $this->getInput('u') . ' - Instagram Embed Bridge';
}

return parent::getName();
}

public function getURI()
{
if (!is_null($this->getInput('u'))) {
return self::URI . urlencode($this->getInput('u')) . '/';
}
return parent::getURI();
}

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;
}

// returns Video post's contents and enclosures
protected function getInstagramVideoData($uri, $mediaURI, $mediaInfo, $textContent)
{
$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 [$content, [$mediaInfo->video_url]];
}

// returns Sidecar(a post which has multiple media)'s contents and enclosures
protected function getInstagramSidecarData($uri, $postTitle, $mediaInfo, $textContent)
{
$enclosures = [];
$content = '';
foreach ($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 [$content, $enclosures];
}

public function detectParameters($url)
{
$params = [];

// By username
$regex = '/^(https?:\/\/)?(www\.)?instagram\.com\/([^\/?\n]+)/';

if (preg_match($regex, $url, $matches) > 0) {
$params['context'] = 'Username';
$params['u'] = urldecode($matches[3]);
return $params;
}

return null;
}
}
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