262 lines
7.6 KiB
PHP
262 lines
7.6 KiB
PHP
<?php
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class KununuBridge extends BridgeAbstract{
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public function loadMetadatas(){
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$this->maintainer = "logmanoriginal";
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$this->name = "Kununu Bridge"; /* This will be replaced later! */
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$this->uri = "https://www.kununu.com"; /* This will be replaced later! */
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$this->description = "Returns the latest reviews for a company and site of your choice.";
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$this->parameters['global'] = array(
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'site'=>array(
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'name'=>'Site',
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'type'=>'list',
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'required'=>true,
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'exampleValue'=>'United States',
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'title'=>'Select your site',
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'values'=>array(
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'Austria'=>'at',
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'Germany'=>'de',
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'Switzerland'=>'ch',
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'United States'=>'us'
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)
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),
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'full'=>array(
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'name'=>'Load full article',
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'type'=>'checkbox',
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'required'=>false,
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'exampleValue'=>'checked',
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'title'=>'Activate to load full article'
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)
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);
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$this->parameters[] = array(
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'company'=>array(
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'name'=>'Company',
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'required'=>true,
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'exampleValue'=>'kununu-us',
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'title'=>'Insert company name (i.e. Kununu US) or URI path (i.e. kununu-us)'
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)
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);
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}
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public function collectData(array $params){
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// Get Site
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$site = strtolower(trim($params['site']));
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if(!isset($site) || empty($site) || !$this->site_is_valid($site))
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$this->returnClientError('You must specify a valid site (&site=...)!');
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// Get Company (fixing whitespace and umlauts)
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$company = $this->encode_umlauts(strtolower(str_replace(' ', '-', trim($params['company']))));
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if(!isset($company) || empty($company))
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$this->returnClientError('You must specify a company (&company=...)!');
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$full = false; // By default we'll load only short article
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if(isset($params['full']))
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$full = strtolower(trim($params['full'])) === 'on';
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// Get reviews section name (depends on site)
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$section = '';
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switch($site){
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case 'at':
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case 'de':
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case 'ch':
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$section = 'kommentare';
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break;
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case 'us':
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$section = 'reviews';
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break;
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default:
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$this->returnServerError('The reviews section is not defined for you selection!');
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}
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// Update URI for the content
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$this->uri .= "/{$site}/{$company}/{$section}";
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// Load page
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$html = $this->getSimpleHTMLDOM($this->uri);
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if($html === false)
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$this->returnServerError('Unable to receive data from ' . $this->uri . '!');
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// Update name for this request
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$this->name = $this->extract_company_name($html) . ' - ' . $this->name;
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// Find the section with all the panels (reviews)
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$section = $html->find('section.kununu-scroll-element', 0);
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if($section === false)
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$this->returnServerError('Unable to find panel section!');
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// Find all articles (within the panels)
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$articles = $section->find('article');
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if($articles === false || empty($articles))
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$this->returnServerError('Unable to find articles!');
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// Go through all articles
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foreach($articles as $article){
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$item = array();
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$item['author'] = $this->extract_article_author_position($article);
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$item['timestamp'] = $this->extract_article_date($article);
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$item['title'] = $this->extract_article_rating($article) . ' : ' . $this->extract_article_summary($article);
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$item['uri'] = $this->extract_article_uri($article);
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if($full)
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$item['content'] = $this->extract_full_description($item['uri']);
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else
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$item['content'] = $this->extract_article_description($article);
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$this->items[] = $item;
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}
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}
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public function getCacheDuration(){
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return 86400; // 1 day
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}
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/**
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* Returns true if the given site is part of the parameters list
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*/
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private function site_is_valid($site){
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$parameter = $this->parameters['global'];
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$sites = $parameter['site']['values'];
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$site_names = array();
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foreach($sites as $name=>$value)
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$site_names[] = $value;
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return in_array($site, $site_names);
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}
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/**
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* Fixes relative URLs in the given text
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*/
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private function fix_url($text){
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return preg_replace('/href=(\'|\")\//i', 'href="https://www.kununu.com/', $text);
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}
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/**
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* Encodes unmlauts in the given text
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*/
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private function encode_umlauts($text){
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$umlauts = Array("/ä/","/ö/","/ü/","/Ä/","/Ö/","/Ü/","/ß/");
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$replace = Array("ae","oe","ue","Ae","Oe","Ue","ss");
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return preg_replace($umlauts, $replace, $text);
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}
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/**
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* Returns the company name from the review html
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*/
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private function extract_company_name($html){
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$panel = $html->find('div.panel', 0);
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if($panel === false)
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$this->returnServerError('Cannot find panel for company name!');
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$company_name = $panel->find('h1', 0);
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if($company_name === false)
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$this->returnServerError('Cannot find company name!');
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return $company_name->plaintext;
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}
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/**
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* Returns the date from a given article
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*/
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private function extract_article_date($article){
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// They conviniently provide a time attribute for us :)
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$date = $article->find('time[itemprop=dtreviewed]', 0);
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if($date === false)
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$this->returnServerError('Cannot find article date!');
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return strtotime($date->datetime);
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}
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/**
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* Returns the rating from a given article
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*/
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private function extract_article_rating($article){
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$rating = $article->find('span.rating', 0);
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if($rating === false)
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$this->returnServerError('Cannot find article rating!');
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return $rating->getAttribute('aria-label');
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}
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/**
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* Returns the summary from a given article
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*/
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private function extract_article_summary($article){
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$summary = $article->find('[itemprop=summary]', 0);
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if($summary === false)
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$this->returnServerError('Cannot find article summary!');
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return strip_tags($summary->innertext);
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}
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/**
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* Returns the URI from a given article
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*/
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private function extract_article_uri($article){
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// Notice: This first part is the same as in extract_article_summary!
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$summary = $article->find('[itemprop=summary]', 0);
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if($summary === false)
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$this->returnServerError('Cannot find article summary!');
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$anchor = $summary->find('a', 0);
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if($anchor === false)
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$this->returnServerError('Cannot find article URI!');
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return 'https://www.kununu.com' . $anchor->href;
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}
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/**
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* Returns the position of the author from a given article
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*/
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private function extract_article_author_position($article){
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// We need to parse the aside manually
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$aside = $article->find('aside', 0);
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if($aside === false)
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$this->returnServerError('Cannot find article author information!');
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// Go through all h2 elements to find index of required span (I know... it's stupid)
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$author_position = 'Unknown';
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foreach($aside->find('h2') as $subject){
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if(stristr(strtolower($subject->plaintext), 'position')){ /* This works for at, ch, de, us */
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$author_position = $subject->next_sibling()->plaintext;
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break;
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}
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}
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return $author_position;
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}
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/**
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* Returns the description from a given article
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*/
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private function extract_article_description($article){
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$description = $article->find('div[itemprop=description]', 0);
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if($description === false)
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$this->returnServerError('Cannot find article description!');
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return $this->fix_url($description->innertext);
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}
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/**
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* Returns the full description from a given uri
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*/
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private function extract_full_description($uri){
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// Load full article
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$html = $this->getSimpleHTMLDOM($uri);
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if($html === false)
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$this->returnServerError('Could not load full description!');
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// Find the article
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$article = $html->find('article', 0);
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if($article === false)
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$this->returnServerError('Cannot find article!');
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// Luckily they use the same layout for the review overview and full article pages :)
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return $this->extract_article_description($article);
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}
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}
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