261 lines
7.5 KiB
PHP
261 lines
7.5 KiB
PHP
<?php
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class FB2Bridge extends BridgeAbstract {
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const MAINTAINER = 'teromene';
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const NAME = 'Facebook Alternate';
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const URI = 'https://www.facebook.com/';
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const CACHE_TIMEOUT = 1000;
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const DESCRIPTION = 'Input a page title or a profile log. For a profile log,
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please insert the parameter as follow : myExamplePage/132621766841117';
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const PARAMETERS = array( array(
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'u' => array(
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'name' => 'Username',
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'required' => true
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)
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));
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public function collectData(){
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//Utility function for cleaning a Facebook link
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$unescape_fb_link = function($matches){
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if(is_array($matches) && count($matches) > 1) {
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$link = $matches[1];
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if(strpos($link, '/') === 0)
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$link = self::URI . substr($link, 1);
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if(strpos($link, 'facebook.com/l.php?u=') !== false)
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$link = urldecode(extractFromDelimiters($link, 'facebook.com/l.php?u=', '&'));
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return ' href="' . $link . '"';
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}
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};
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//Utility function for converting facebook emoticons
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$unescape_fb_emote = function($matches){
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static $facebook_emoticons = array(
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'smile' => ':)',
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'frown' => ':(',
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'tongue' => ':P',
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'grin' => ':D',
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'gasp' => ':O',
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'wink' => ';)',
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'pacman' => ':<',
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'grumpy' => '>_<',
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'unsure' => ':/',
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'cry' => ':\'(',
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'kiki' => '^_^',
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'glasses' => '8-)',
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'sunglasses' => 'B-)',
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'heart' => '<3',
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'devil' => ']:D',
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'angel' => '0:)',
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'squint' => '-_-',
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'confused' => 'o_O',
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'upset' => 'xD',
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'colonthree' => ':3',
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'like' => '👍');
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$len = count($matches);
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if ($len > 1)
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for ($i = 1; $i < $len; $i++)
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foreach ($facebook_emoticons as $name => $emote)
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if ($matches[$i] === $name)
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return $emote;
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return $matches[0];
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};
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if($this->getInput('u') !== null) {
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$page = 'https://touch.facebook.com/' . $this->getInput('u');
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$cookies = $this->getCookies($page);
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$pageInfo = $this->getPageInfos($page, $cookies);
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if($pageInfo['userId'] === null) {
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echo <<<EOD
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Unable to get the page id. You should consider getting the ID by hand, then importing it into FB2Bridge
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EOD;
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die();
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} elseif($pageInfo['userId'] == -1) {
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echo <<<EOD
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This page is not accessible without being logged in.
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EOD;
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die();
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}
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}
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//Build the string for the first request
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$requestString = 'https://touch.facebook.com/page_content_list_view/more/?page_id='
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. $pageInfo['userId']
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. '&start_cursor=1&num_to_fetch=10&surface_type=timeline';
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$fileContent = getContents($requestString);
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$html = $this->buildContent($fileContent);
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$author = $pageInfo['username'];
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foreach($html->find('article') as $content) {
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$item = array();
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preg_match('/publish_time\\\":([0-9]+),/', $content->getAttribute('data-store', 0), $match);
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if(isset($match[1]))
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$timestamp = $match[1];
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else
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$timestamp = 0;
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$item['uri'] = html_entity_decode('http://touch.facebook.com'
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. $content->find("div[class='_52jc _5qc4 _24u0 _36xo']", 0)->find('a', 0)->getAttribute('href'), ENT_QUOTES);
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if($content->find('header', 0) !== null) {
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$content->find('header', 0)->innertext = '';
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}
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if($content->find('footer', 0) !== null) {
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$content->find('footer', 0)->innertext = '';
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}
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if($content->find('._5rgu', 0) !== null) {
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$content->find('._5rgu', 0)->innertext = '';
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}
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// Replace emoticon images by their textual representation (part of the span)
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foreach($content->find('span[title*="emoticon"]') as $emoticon) {
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$emoticon->innertext = $emoticon->find('span[aria-hidden="true"]', 0)->innertext;
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}
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//Remove html nodes, keep only img, links, basic formatting
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//$content = strip_tags($content, '<a><img><i><u><br><p><h3><h4>');
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//Adapt link hrefs: convert relative links into absolute links and bypass external link redirection
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$content = preg_replace_callback('/ href=\"([^"]+)\"/i', $unescape_fb_link, $content);
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//Clean useless html tag properties and fix link closing tags
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foreach (array(
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'onmouseover',
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'onclick',
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'target',
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'ajaxify',
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'tabindex',
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'class',
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'style',
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'data-[^=]*',
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'aria-[^=]*',
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'role',
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'rel',
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'id') as $property_name)
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$content = preg_replace('/ ' . $property_name . '=\"[^"]*\"/i', '', $content);
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$content = preg_replace('/<\/a [^>]+>/i', '</a>', $content);
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//Convert textual representation of emoticons eg
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// "<i><u>smile emoticon</u></i>" back to ASCII emoticons eg ":)"
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$content = preg_replace_callback('/<i><u>([^ <>]+) ([^<>]+)<\/u><\/i>/i', $unescape_fb_emote, $content);
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//Remove the "...Plus" tag
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$content = preg_replace(
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'/… (<span>|)<a href="https:\/\/www\.facebook\.com\/story\.php\?story_fbid=.*?<\/a>/m',
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'', $content, 1);
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$item['content'] = html_entity_decode($content, ENT_QUOTES);
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$title = $author;
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if (strlen($title) > 24)
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$title = substr($title, 0, strpos(wordwrap($title, 24), "\n")) . '...';
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$title = $title . ' | ' . strip_tags($content);
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if (strlen($title) > 64)
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$title = substr($title, 0, strpos(wordwrap($title, 64), "\n")) . '...';
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$item['title'] = html_entity_decode($title, ENT_QUOTES);
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$item['author'] = html_entity_decode($author, ENT_QUOTES);
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$item['timestamp'] = html_entity_decode($timestamp, ENT_QUOTES);
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if($item['timestamp'] != 0)
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array_push($this->items, $item);
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}
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}
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//Builds the HTML from the encoded JS that Facebook provides.
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private function buildContent($pageContent){
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// The html ends with:
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// /div>","replaceifexists
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$regex = '/\\"html\\":(\".+\/div>"),"replace/';
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preg_match($regex, $pageContent, $result);
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return str_get_html(json_decode($result[1]));
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}
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//Builds the cookie from the page, as Facebook sometimes refuses to give
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//the page if no cookie is provided.
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private function getCookies($pageURL){
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$ctx = stream_context_create(array(
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'http' => array(
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'user_agent' => 'Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:46.0) Gecko/20100101 Firefox/46.0',
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'Accept' => 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8'
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)
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)
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);
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$a = file_get_contents($pageURL, 0, $ctx);
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//First request to get the cookie
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$cookies = '';
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foreach($http_response_header as $hdr) {
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if(strpos($hdr, 'Set-Cookie') !== false) {
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$cLine = explode(':', $hdr)[1];
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$cLine = explode(';', $cLine)[0];
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$cookies .= ';' . $cLine;
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}
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}
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return substr($cookies, 1);
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}
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//Get the page ID and username from the Facebook page.
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private function getPageInfos($page, $cookies){
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$context = stream_context_create(array(
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'http' => array(
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'user_agent' => 'Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:46.0) Gecko/20100101 Firefox/46.0',
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'header' => 'Cookie: ' . $cookies
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)
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)
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);
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$pageContent = file_get_contents($page, 0, $context);
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if(strpos($pageContent, 'signup-button') != false) {
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return -1;
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}
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//Get the username
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$usernameRegex = '/data-nt=\"FB:TEXT4\">(.*?)<\/div>/m';
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preg_match($usernameRegex, $pageContent, $usernameMatches);
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if(count($usernameMatches) > 0) {
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$username = $usernameMatches[1];
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} else {
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$username = $this->getInput('u');
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}
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//Get the page ID if we don't have a captcha
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$regex = '/page_id=([0-9]*)&/';
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preg_match($regex, $pageContent, $matches);
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if(count($matches) > 0) {
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return array('userId' => $matches[1], 'username' => $username);
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}
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//Get the page ID if we do have a captcha
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$regex = '/"pageID":"([0-9]*)"/';
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preg_match($regex, $pageContent, $matches);
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return array('userId' => $matches[1], 'username' => $username);
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}
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public function getName(){
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return (isset($this->name) ? $this->name . ' - ' : '') . 'Facebook Bridge';
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}
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public function getURI(){
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return 'http://facebook.com';
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}
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}
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