rss-bridge/bridges/GooglePlusPostBridge.php
logmanoriginal 3c4e12ceba [GooglePlusPostBridge] Add images to enclosures
Images are collected for each post and added to enclosures. Images or
animtions from lh3.googleusercontent.com are specifically handled in
order to return the animated version of the gif and the original sized
image (this is normally taken care of by JS in the browser).
2018-07-31 18:18:22 +02:00

208 lines
5.9 KiB
PHP

<?php
class GooglePlusPostBridge extends BridgeAbstract{
protected $_title;
protected $_url;
const MAINTAINER = 'Grummfy, logmanoriginal';
const NAME = 'Google Plus Post Bridge';
const URI = 'https://plus.google.com/';
const CACHE_TIMEOUT = 600; //10min
const DESCRIPTION = 'Returns user public post (without API).';
const PARAMETERS = array( array(
'username' => array(
'name' => 'username or Id',
'required' => true
)
));
public function collectData(){
$username = $this->getInput('username');
// Usernames start with a + if it's not an ID
if(!is_numeric($username) && substr($username, 0, 1) !== '+') {
$username = '+' . $username;
}
// get content parsed
$html = getSimpleHTMLDOMCached(self::URI . urlencode($username) . '/posts')
or returnServerError('No results for this query.');
// get title, url, ... there is a lot of intresting stuff in meta
$this->_title = $html->find('meta[property=og:title]', 0)->getAttribute('content');
$this->_url = $html->find('meta[property=og:url]', 0)->getAttribute('content');
// I don't even know where to start with this discusting html...
foreach($html->find('div[jsname=WsjYwc]') as $post) {
$item = array();
$item['author'] = $item['fullname'] = $post->find('div div div div a', 0)->innertext;
$item['id'] = $post->find('div div div', 0)->getAttribute('id');
$item['avatar'] = $post->find('div img', 0)->src;
$item['uri'] = self::URI . $post->find('div div div a', 1)->href;
$timestamp = $post->find('a.qXj2He span', 0);
if($timestamp) {
$item['timestamp'] = strtotime('+' . preg_replace(
'/[^0-9A-Za-z]/',
'',
$timestamp->getAttribute('aria-label')));
}
// hashtag to treat : https://plus.google.com/explore/tag
// $hashtags = array();
// foreach($post->find('a.d-s') as $hashtag){
// $hashtags[trim($hashtag->plaintext)] = self::URI . $hashtag->href;
// }
$item['content'] = '';
// avatar display
$item['content'] .= '<div style="float:left; margin: 0 0.5em 0.5em 0;"><a href="'
. self::URI
. urlencode($this->getInput('username'));
$item['content'] .= '"><img align="top" alt="'
. $item['author']
. '" src="'
. $item['avatar']
. '" /></a></div>';
$content = $post->find('div[jsname=EjRJtf]', 0);
// extract plaintext
$item['content_simple'] = $content->plaintext;
$item['title'] = substr($item['content_simple'], 0, 72) . '...';
// 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::URI . $link->href;
}
}
$content = $content->innertext;
$item['content'] .= '<div style="margin-top: -1.5em">' . $content . '</div>';
$item['content'] = trim(strip_tags($item['content'], '<a><p><div><img>'));
$media = $post->find('[jsname="MTOxpb"]', 0);
if($media) {
$item['enclosures'] = array();
foreach($media->find('img') as $img) {
$item['enclosures'][] = $this->fixImage($img)->src;
}
}
$this->items[] = $item;
}
}
public function getName(){
return $this->_title ?: 'Google Plus Post Bridge';
}
public function getURI(){
return $this->_url ?: parent::getURI();
}
private function fixImage($img) {
// There are certain images like .gif which link to a static picture and
// get replaced dynamically via JS in the browser. If we want the "real"
// image we need to account for that.
$urlparts = parse_url($img->src);
if(array_key_exists('host', $urlparts)) {
// For some reason some URIs don't contain the scheme, assume https
if(!array_key_exists('scheme', $urlparts)) {
$urlparts['scheme'] = 'https';
}
$pathelements = explode('/', $urlparts['path']);
switch($urlparts['host']) {
case 'lh3.googleusercontent.com':
if(pathinfo(end($pathelements), PATHINFO_EXTENSION)) {
// The second to last element of the path specifies the
// image format. The URL is still valid if we remove it.
unset($pathelements[count($pathelements) - 2]);
} elseif(strrpos(end($pathelements), '=') !== false) {
// Some images go throug a proxy. For those images they
// add size information after an equal sign.
// Example: '=w530-h298-n'. Again this can safely be
// removed to get the original image.
$pathelements[count($pathelements) - 1] = substr(
end($pathelements),
0,
strrpos(end($pathelements), '=')
);
}
break;
}
$urlparts['path'] = implode('/', $pathelements);
}
echo $img->src . '<br>';
$img->src = $this->build_url($urlparts);
echo $img->src . '<br><br>';
return $img;
}
/**
* From: https://gist.github.com/Ellrion/f51ba0d40ae1d62eeae44fd1adf7b704
* slightly adjusted to work with PHP < 7.0
* @param array $parts
* @return string
*/
private function build_url(array $parts)
{
$scheme = isset($parts['scheme']) ? ($parts['scheme'] . '://') : '';
$host = isset($parts['host']) ? $parts['host'] : '';
$port = isset($parts['port']) ? (':' . $parts['port']) : '';
$user = isset($parts['user']) ? $parts['user'] : '';
$pass = isset($parts['pass']) ? (':' . $parts['pass']) : '';
$pass = ($user || $pass) ? ($pass . '@') : '';
$path = isset($parts['path']) ? $parts['path'] : '';
$query = isset($parts['query']) ? ('?' . $parts['query']) : '';
$fragment = isset($parts['fragment']) ? ('#' . $parts['fragment']) : '';
return implode('', [$scheme, $user, $pass, $host, $port, $path, $query, $fragment]);
}
}