rss-bridge/bridges/InstagramBridge.php

<?php
/**
 * RssBridgeInstagram
 * Returns the newest photos
 *
 * @name Instagram Bridge
 * @description Returns the newest images
 * @use1(u="username")
 */
class InstagramBridge extends BridgeAbstract
{
    private $request;

    public function collectData(array $param)
    {
        $html = '';
        if (isset($param['u'])) {   /* user timeline mode */
            $this->request = $param['u'];
            $html = file_get_html('http://instagram.com/'.urlencode($this->request)) or $this->returnError('Could not request Instagram.', 404);
        } else {
            $this->returnError('You must specify a Instagram username (?u=...).', 400);
        }

        $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), ' =;');
        $data = json_decode($json);

        $userMedia = $data->entry_data->UserProfile[0]->userMedia;

        foreach ($userMedia as $media) {
            $image = $media->images->standard_resolution;

            $item = new \Item();
            $item->uri = $media->link;
            $item->content = '<img src="' . htmlentities($image->url) . '" width="'.htmlentities($image->width).'" height="'.htmlentities($image->height).'" />';
            if (isset($media->caption)) {
                $item->title = $media->caption->text;
            } else {
                $item->title = basename($image->url);
            }
            $item->timestamp = $media->created_time;
            $this->items[] = $item;

        }
    }

    public function getName()
    {
        return (!empty($this->request) ? $this->request .' - ' : '') .'Instagram Bridge';
    }

    public function getURI()
    {
        return 'http://instagram.com/';
    }

    public function getCacheDuration()
    {
        return 3600;
    }
}