fa2df09b1b
This adds a new option 'novideo' that can be set to 'on' or 'off' in order to skip posts that include facebook videos (does not work for linked videos like YouTube). This option is 'off' by default. References #533
296 lines
8.8 KiB
PHP
296 lines
8.8 KiB
PHP
<?php
|
|
class FacebookBridge extends BridgeAbstract {
|
|
|
|
const MAINTAINER = 'teromene';
|
|
const NAME = 'Facebook';
|
|
const URI = 'https://www.facebook.com/';
|
|
const CACHE_TIMEOUT = 300; // 5min
|
|
const DESCRIPTION = 'Input a page title or a profile log. For a profile log,
|
|
please insert the parameter as follow : myExamplePage/132621766841117';
|
|
|
|
const PARAMETERS = array( array(
|
|
'u' => array(
|
|
'name' => 'Username',
|
|
'required' => true
|
|
),
|
|
'novideo' => array(
|
|
'name' => 'No Videos',
|
|
'type' => 'checkbox',
|
|
'required' => false,
|
|
'title' => 'Activate to remove posts including (facebook) videos'
|
|
)
|
|
));
|
|
|
|
private $authorName = '';
|
|
|
|
public function collectData(){
|
|
|
|
//Extract a string using start and end delimiters
|
|
function extractFromDelimiters($string, $start, $end){
|
|
if(strpos($string, $start) !== false){
|
|
$section_retrieved = substr($string, strpos($string, $start) + strlen($start));
|
|
$section_retrieved = substr($section_retrieved, 0, strpos($section_retrieved, $end));
|
|
return $section_retrieved;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
//Utility function for cleaning a Facebook link
|
|
$unescape_fb_link = function($matches){
|
|
if(is_array($matches) && count($matches) > 1){
|
|
$link = $matches[1];
|
|
if(strpos($link, '/') === 0)
|
|
$link = self::URI . $link . '"';
|
|
if(strpos($link, 'facebook.com/l.php?u=') !== false)
|
|
$link = urldecode(extractFromDelimiters($link, 'facebook.com/l.php?u=', '&'));
|
|
return ' href="' . $link . '"';
|
|
}
|
|
};
|
|
|
|
//Utility function for converting facebook emoticons
|
|
$unescape_fb_emote = function($matches){
|
|
static $facebook_emoticons = array(
|
|
'smile' => ':)',
|
|
'frown' => ':(',
|
|
'tongue' => ':P',
|
|
'grin' => ':D',
|
|
'gasp' => ':O',
|
|
'wink' => ';)',
|
|
'pacman' => ':<',
|
|
'grumpy' => '>_<',
|
|
'unsure' => ':/',
|
|
'cry' => ':\'(',
|
|
'kiki' => '^_^',
|
|
'glasses' => '8-)',
|
|
'sunglasses' => 'B-)',
|
|
'heart' => '<3',
|
|
'devil' => ']:D',
|
|
'angel' => '0:)',
|
|
'squint' => '-_-',
|
|
'confused' => 'o_O',
|
|
'upset' => 'xD',
|
|
'colonthree' => ':3',
|
|
'like' => '👍');
|
|
$len = count($matches);
|
|
if ($len > 1)
|
|
for ($i = 1; $i < $len; $i++)
|
|
foreach ($facebook_emoticons as $name => $emote)
|
|
if ($matches[$i] === $name)
|
|
return $emote;
|
|
return $matches[0];
|
|
};
|
|
|
|
$html = null;
|
|
|
|
//Handle captcha response sent by the viewer
|
|
if (isset($_POST['captcha_response']))
|
|
{
|
|
if (session_status() == PHP_SESSION_NONE)
|
|
session_start();
|
|
if (isset($_SESSION['captcha_fields'], $_SESSION['captcha_action']))
|
|
{
|
|
$captcha_action = $_SESSION['captcha_action'];
|
|
$captcha_fields = $_SESSION['captcha_fields'];
|
|
$captcha_fields['captcha_response'] = preg_replace("/[^a-zA-Z0-9]+/", "", $_POST['captcha_response']);
|
|
$http_options = array(
|
|
'http' => array(
|
|
'method' => 'POST',
|
|
'user_agent' => ini_get('user_agent'),
|
|
'header' => array("Content-type:
|
|
application/x-www-form-urlencoded\r\nReferer: $captcha_action\r\nCookie: noscript=1\r\n"),
|
|
'content' => http_build_query($captcha_fields)
|
|
),
|
|
);
|
|
$context = stream_context_create($http_options);
|
|
$html = getContents($captcha_action, false, $context);
|
|
|
|
if($html === false){
|
|
returnServerError('Failed to submit captcha response back to Facebook');
|
|
}
|
|
unset($_SESSION['captcha_fields']);
|
|
$html = str_get_html($html);
|
|
}
|
|
unset($_SESSION['captcha_fields']);
|
|
unset($_SESSION['captcha_action']);
|
|
}
|
|
|
|
//Retrieve page contents
|
|
if(is_null($html)){
|
|
$http_options = array(
|
|
'http' => array(
|
|
'method' => 'GET',
|
|
'user_agent' => ini_get('user_agent'),
|
|
'header' => 'Accept-Language: ' . getEnv('HTTP_ACCEPT_LANGUAGE') . "\r\n"
|
|
)
|
|
);
|
|
$context = stream_context_create($http_options);
|
|
if(!strpos($this->getInput('u'), "/")){
|
|
$html = getSimpleHTMLDOM(self::URI . urlencode($this->getInput('u')) . '?_fb_noscript=1',
|
|
false,
|
|
$context)
|
|
or returnServerError('No results for this query.');
|
|
} else {
|
|
$html = getSimpleHTMLDOM(self::URI . 'pages/' . $this->getInput('u') . '?_fb_noscript=1',
|
|
false,
|
|
$context)
|
|
or returnServerError('No results for this query.');
|
|
}
|
|
}
|
|
|
|
//Handle captcha form?
|
|
$captcha = $html->find('div.captcha_interstitial', 0);
|
|
if (!is_null($captcha))
|
|
{
|
|
//Save form for submitting after getting captcha response
|
|
if (session_status() == PHP_SESSION_NONE)
|
|
session_start();
|
|
$captcha_fields = array();
|
|
foreach ($captcha->find('input, button') as $input)
|
|
$captcha_fields[$input->name] = $input->value;
|
|
$_SESSION['captcha_fields'] = $captcha_fields;
|
|
$_SESSION['captcha_action'] = $captcha->find('form', 0)->action;
|
|
|
|
//Show captcha filling form to the viewer, proxying the captcha image
|
|
$img = base64_encode(getContents($captcha->find('img', 0)->src));
|
|
header('HTTP/1.1 500 ' . Http::getMessageForCode(500));
|
|
header('Content-Type: text/html');
|
|
$message = <<<EOD
|
|
<form method="post" action="?{$_SERVER['QUERY_STRING']}">
|
|
<h2>Facebook captcha challenge</h2>
|
|
<p>Unfortunately, rss-bridge cannot fetch the requested page.<br />
|
|
Facebook wants rss-bridge to resolve the following captcha:</p>
|
|
<p><img src="data:image/png;base64,{$img}" /></p>
|
|
<p><b>Response:</b> <input name="captcha_response" placeholder="please fill in" />
|
|
<input type="submit" value="Submit!" /></p>
|
|
</form>
|
|
EOD;
|
|
die($message);
|
|
}
|
|
|
|
//No captcha? We can carry on retrieving page contents :)
|
|
$element = $html
|
|
->find('#pagelet_timeline_main_column')[0]
|
|
->children(0)
|
|
->children(0)
|
|
->children(0)
|
|
->next_sibling()
|
|
->children(0);
|
|
|
|
if(isset($element)){
|
|
|
|
$author = str_replace(' | Facebook', '', $html->find('title#pageTitle', 0)->innertext);
|
|
$profilePic = 'https://graph.facebook.com/'
|
|
. $this->getInput('u')
|
|
. '/picture?width=200&height=200';
|
|
|
|
$this->authorName = $author;
|
|
|
|
foreach($element->children() as $cell){
|
|
// Manage summary posts
|
|
if(strpos($cell->class, '_3xaf') !== false){
|
|
$posts = $cell->children();
|
|
} else {
|
|
$posts = array($cell);
|
|
}
|
|
|
|
foreach($posts as $post){
|
|
|
|
// (optionally) skip posts that include facebook videos
|
|
if($this->getInput('novideo') && !empty($post->find('[aria-label=Video]')))
|
|
continue;
|
|
|
|
$item = array();
|
|
|
|
if(count($post->find('abbr')) > 0){
|
|
|
|
//Retrieve post contents
|
|
$content = preg_replace(
|
|
'/(?i)><div class=\"clearfix([^>]+)>(.+?)div\ class=\"userContent\"/i',
|
|
'',
|
|
$post);
|
|
|
|
$content = preg_replace(
|
|
'/(?i)><div class=\"_59tj([^>]+)>(.+?)<\/div><\/div><a/i',
|
|
'',
|
|
$content);
|
|
|
|
$content = preg_replace(
|
|
'/(?i)><div class=\"_3dp([^>]+)>(.+?)div\ class=\"[^u]+userContent\"/i',
|
|
'',
|
|
$content);
|
|
|
|
$content = preg_replace(
|
|
'/(?i)><div class=\"_4l5([^>]+)>(.+?)<\/div>/i',
|
|
'',
|
|
$content);
|
|
|
|
//Remove html nodes, keep only img, links, basic formatting
|
|
$content = strip_tags($content, '<a><img><i><u><br><p>');
|
|
|
|
//Adapt link hrefs: convert relative links into absolute links and bypass external link redirection
|
|
$content = preg_replace_callback('/ href=\"([^"]+)\"/i', $unescape_fb_link, $content);
|
|
|
|
//Clean useless html tag properties and fix link closing tags
|
|
foreach (array(
|
|
'onmouseover',
|
|
'onclick',
|
|
'target',
|
|
'ajaxify',
|
|
'tabindex',
|
|
'class',
|
|
'style',
|
|
'data-[^=]*',
|
|
'aria-[^=]*',
|
|
'role',
|
|
'rel',
|
|
'id') as $property_name)
|
|
$content = preg_replace('/ ' . $property_name . '=\"[^"]*\"/i', '', $content);
|
|
$content = preg_replace('/<\/a [^>]+>/i', '</a>', $content);
|
|
|
|
//Convert textual representation of emoticons eg
|
|
//"<i><u>smile emoticon</u></i>" back to ASCII emoticons eg ":)"
|
|
$content = preg_replace_callback(
|
|
'/<i><u>([^ <>]+) ([^<>]+)<\/u><\/i>/i',
|
|
$unescape_fb_emote,
|
|
$content
|
|
);
|
|
|
|
//Retrieve date of the post
|
|
$date = $post->find("abbr")[0];
|
|
if(isset($date) && $date->hasAttribute('data-utime')){
|
|
$date = $date->getAttribute('data-utime');
|
|
} else {
|
|
$date = 0;
|
|
}
|
|
|
|
//Build title from username and content
|
|
$title = $author;
|
|
if(strlen($title) > 24)
|
|
$title = substr($title, 0, strpos(wordwrap($title, 24), "\n")) . '...';
|
|
$title = $title . ' | ' . strip_tags($content);
|
|
if(strlen($title) > 64)
|
|
$title = substr($title, 0, strpos(wordwrap($title, 64), "\n")) . '...';
|
|
|
|
//Build and add final item
|
|
$item['uri'] = self::URI . $post->find('abbr')[0]->parent()->getAttribute('href');
|
|
$item['content'] = $content;
|
|
$item['title'] = $title;
|
|
$item['author'] = $author;
|
|
$item['timestamp'] = $date;
|
|
$this->items[] = $item;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
public function getName(){
|
|
if(!empty($this->authorName)){
|
|
return isset($this->extraInfos['name']) ? $this->extraInfos['name'] : $this->authorName
|
|
. ' - Facebook Bridge';
|
|
}
|
|
|
|
return parent::getName();
|
|
}
|
|
}
|