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Added support for stories in InstagramBridge. Closes #665
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Renamed parameters as stories are only available in user mode.
Use a regex instead of HTML parsing to extract the JSON, as it is way faster.
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@teromene
teromene committed May 5, 2018
1 parent 49930f5 commit b92405f
Showing 1 changed file with 69 additions and 36 deletions.
105 changes: 69 additions & 36 deletions bridges/InstagramBridge.php
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Original file line number Original file line Diff line number Diff line change
Expand Up @@ -12,14 +12,15 @@ class InstagramBridge extends BridgeAbstract {
'name' => 'username', 'name' => 'username',
'required' => true 'required' => true
), ),
'media_type' => array( 'media_type_u' => array(
'name' => 'Media type', 'name' => 'Media type',
'type' => 'list', 'type' => 'list',
'required' => false, 'required' => false,
'values' => array( 'values' => array(
'Both' => 'all', 'All' => 'all',
'Story' => 'story',
'Video' => 'video', 'Video' => 'video',
'Picture' => 'picture' 'Picture' => 'picture',
), ),
'defaultValue' => 'all' 'defaultValue' => 'all'
) )
Expand All @@ -29,7 +30,7 @@ class InstagramBridge extends BridgeAbstract {
'name' => 'hashtag', 'name' => 'hashtag',
'required' => true 'required' => true
), ),
'media_type' => array( 'media_type_h' => array(
'name' => 'Media type', 'name' => 'Media type',
'type' => 'list', 'type' => 'list',
'required' => false, 'required' => false,
Expand All @@ -44,27 +45,8 @@ class InstagramBridge extends BridgeAbstract {
); );


public function collectData(){ public function collectData(){
$html = getSimpleHTMLDOM($this->getURI())
or returnServerError('Could not request Instagram.');

$innertext = null;

foreach($html->find('script') as $script) {
if('' === $script->innertext) {
continue;
}

$pos = strpos(trim($script->innertext), 'window._sharedData');
if(0 !== $pos) {
continue;
}

$innertext = $script->innertext;
break;
}


$json = trim(substr($innertext, $pos + 18), ' =;'); $data = $this->getInstagramJSON($this->getURI());
$data = json_decode($json);


if(!is_null($this->getInput('u'))) { if(!is_null($this->getInput('u'))) {
$userMedia = $data->entry_data->ProfilePage[0]->graphql->user->edge_owner_to_timeline_media->edges; $userMedia = $data->entry_data->ProfilePage[0]->graphql->user->edge_owner_to_timeline_media->edges;
Expand All @@ -74,32 +56,83 @@ public function collectData(){


foreach($userMedia as $media) { foreach($userMedia as $media) {
$media = $media->node; $media = $media->node;
// Check media type
switch($this->getInput('media_type')) { if(!is_null($this->getInput('u'))) {
case 'all': break; switch($this->getInput('media_type_u')) {
case 'video': case 'all': break;
if($media->is_video === false) continue 2; case 'video':
break; if($media->__typename != 'GraphVideo') continue 2;
case 'picture': break;
if($media->is_video === true) continue 2; case 'picture':
break; if($media->__typename != 'GraphImage') continue 2;
default: break; break;
case 'story':
if($media->__typename != 'GraphSidecar') continue 2;
break;
default: break;
}
} else {
if($this->getInput('media_type_h') == 'video' && !$media->is_video) continue;
} }


$item = array(); $item = array();
$item['uri'] = self::URI . 'p/' . $media->shortcode . '/'; $item['uri'] = self::URI . 'p/' . $media->shortcode . '/';
$item['content'] = '<img src="' . htmlentities($media->display_url) . '" />';
if (isset($media->edge_media_to_caption->edges[0]->node->text)) { if (isset($media->edge_media_to_caption->edges[0]->node->text)) {
$item['title'] = $media->edge_media_to_caption->edges[0]->node->text; $item['title'] = $media->edge_media_to_caption->edges[0]->node->text;
} else { } else {
$item['title'] = basename($media->display_url); $item['title'] = basename($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; $item['timestamp'] = $media->taken_at_timestamp;
$item['enclosures'] = array($media->display_url);
$this->items[] = $item; $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(){ public function getName(){
if(!is_null($this->getInput('u'))) { if(!is_null($this->getInput('u'))) {
return $this->getInput('u') . ' - Instagram Bridge'; return $this->getInput('u') . ' - Instagram Bridge';
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