rss-bridge/bridges/GooglePlusPostBridge.php

<?php

/**
 * Google Plus Post Bridge
 * Freely inspired by tweeter bridge
 * 2014-07-20
 *
 * @name Google Plus Post Bridge
 * @homepage http://plus.google.com/
 * @description Returns user public post (without API).
 * @maintainer Grummfy
 * @use1(username="usernameOrId")
 */
class GooglePlusPostBridge extends BridgeAbstract
{
	protected $_title;
	protected $_url;

	const GOOGLE_PLUS_BASE_URL = 'https://plus.google.com/';

	public function collectData(array $param)
	{
		if (!isset($param['username']))
		{
			$this->returnError('You must specify a username (?username=...).', 400);
		}

		$this->request = $param['username'];
		// get content parsed
//		$html = file_get_html(__DIR__ . '/../posts2.html'
		$html = file_get_html(self::GOOGLE_PLUS_BASE_URL . urlencode($this->request) . '/posts'
			// force language
			, false, stream_context_create(array('http'=> array(
			'header'    => 'Accept-Language: fr,fr-be,fr-fr;q=0.8,en;q=0.4,en-us;q=0.2;*' . "\r\n"
			)))
		) OR $this->returnError('No results for this query.', 404);

		// get title, url, ... there is a lot of intresting stuff in meta
		$this->_title = $html->find('meta[property]', 0)->getAttribute('content');
		$this->_url = $html->find('meta[itemprop=url]', 0)->getAttribute('content');

//		foreach ($html->find('meta') as $e)
//		{
//			$item = new \Item();
//			$item->content = var_export($e->attr, true);
//			$this->items[] = $item;
//		}

		// div[jsmodel=XNmfOc]
		foreach($html->find('div.yt') as $post)
		{
			$item = new \Item();
//			$item->content = $post->find('div.Al', 0)->innertext;
			$item->username = $item->fullname = $post->find('header.lea h3 a', 0)->innertext;
			$item->id = $post->getAttribute('id');
//			$item->title = $item->fullname = $post->find('header.lea', 0)->plaintext;
			$item->avatar = $post->find('div.ys img', 0)->src;
//			var_dump((($post->find('a.o-U-s', 0)->getAllAttributes())));
			$item->uri = $post->find('a.o-U-s', 0)->href;
			$item->timestamp = strtotime($post->find('a.o-U-s', 0)->plaintext);
			$this->items[] = $item;

			// hashtag to treat : https://plus.google.com/explore/tag
			$hashtags = array();
			foreach($post->find('a.d-s') as $hashtag)
			{
				$hashtags[ trim($hashtag->plaintext) ] = self::GOOGLE_PLUS_BASE_URL . $hashtag->href;
			}

			$item->content = '';

			// avatar display
			$item->content .= '<div style="float:left; margin: 0 0.5em 0.5em 0;"><a href="' . self::GOOGLE_PLUS_BASE_URL . urlencode($this->request);
			$item->content .= '"><img align="top" alt="avatar" src="' . $item->avatar.'" />' . $item->username . '</a></div>';

			$content = $post->find('div.Al', 0);

			// alter link
//			$content = $content->innertext;
//			$content = str_replace('href="./', 'href="' . self::GOOGLE_PLUS_BASE_URL, $content);
//			$content = str_replace('href="photos', 'href="' . self::GOOGLE_PLUS_BASE_URL . 'photos', $content);
			// XXX ugly but I don't have any idea how to do a better stuff, str_replace on link doesn't work as expected and ask too many checks
			foreach($content->find('a') as $link)
			{
				$hasHttp = strpos($link->href, 'http');
				$hasDoubleSlash = strpos($link->href, '//');

				if ((!$hasHttp && !$hasDoubleSlash)
					|| (false !== $hasHttp && strpos($link->href, 'http') != 0)
					|| (false === $hasHttp && false !== $hasDoubleSlash && $hasDoubleSlash != 0))
				{
					// skipp bad link, for some hashtag or other stuff
					if (strpos($link->href, '/') == 0)
					{
						$link->href = substr($link->href, 1);
					}
					$link->href = self::GOOGLE_PLUS_BASE_URL . $link->href;
				}
			}
			$content = $content->innertext;

			$item->content .= '<div style="margin-top: -1.5em">' .  $content . '</div>';

			// extract plaintext
			$item->content_simple = $post->find('div.Al', 0)->plaintext;
		}

//		$html->save(__DIR__ . '/../posts2.html');
	}

	public function getName()
	{
		return $this->_title ?: 'Google Plus Post Bridge';
	}

	public function getURI()
	{
		return $this->_url ?: 'http://plus.google.com/';
	}

	public function getCacheDuration()
	{
		return 1; // 600; // 10 minutes
	}
}