351 lines
8.5 KiB
PHP
351 lines
8.5 KiB
PHP
<?php
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class JustETFBridge extends BridgeAbstract {
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const NAME = 'justETF Bridge';
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const URI = 'https://www.justetf.com';
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const DESCRIPTION = 'Currently only supports the news feed';
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const MAINTAINER = 'logmanoriginal';
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const PARAMETERS = array(
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'News' => array(
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'full' => array(
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'name' => 'Full Article',
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'type' => 'checkbox',
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'title' => 'Enable to load full articles'
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)
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),
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'Profile' => array(
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'isin' => array(
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'name' => 'ISIN',
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'type' => 'text',
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'required' => true,
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'pattern' => '[a-zA-Z]{2}[a-zA-Z0-9]{10}',
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'title' => 'ISIN, consisting of 2-letter country code, 9-character identifier, check character'
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),
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'strategy' => array(
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'name' => 'Include Strategy',
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'type' => 'checkbox',
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'defaultValue' => 'checked'
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),
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'description' => array(
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'name' => 'Include Description',
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'type' => 'checkbox',
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'defaultValue' => 'checked'
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)
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),
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'global' => array(
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'lang' => array(
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'name' => 'Language',
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'type' => 'list',
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'values' => array(
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'Englisch' => 'en',
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'Deutsch' => 'de',
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'Italiano' => 'it'
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),
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'defaultValue' => 'Englisch'
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)
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)
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);
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public function collectData() {
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$html = getSimpleHTMLDOM($this->getURI())
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or returnServerError('Failed loading contents from ' . $this->getURI());
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defaultLinkTo($html, static::URI);
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switch($this->queriedContext) {
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case 'News':
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$this->collectNews($html);
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break;
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case 'Profile':
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$this->collectProfile($html);
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break;
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}
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}
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public function getURI() {
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$uri = static::URI;
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if($this->getInput('lang')) {
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$uri .= '/' . $this->getInput('lang');
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}
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switch($this->queriedContext) {
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case 'News':
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$uri .= '/news';
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break;
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case 'Profile':
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$uri .= '/etf-profile.html?' . http_build_query(array(
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'isin' => strtoupper($this->getInput('isin'))
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));
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break;
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}
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return $uri;
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}
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public function getName() {
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$name = static::NAME;
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$name .= ($this->queriedContext) ? ' - ' . $this->queriedContext : '';
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switch($this->queriedContext) {
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case 'News': break;
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case 'Profile':
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if($this->getInput('isin')) {
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$name .= ' ISIN ' . strtoupper($this->getInput('isin'));
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}
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}
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if($this->getInput('lang')) {
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$name .= ' (' . strtoupper($this->getInput('lang')) . ')';
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}
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return $name;
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}
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#region Common
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/**
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* Fixes dates depending on the choosen language:
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*
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* de : dd.mm.yy
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* en : dd.mm.yy
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* it : dd/mm/yy
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*
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* Basically strtotime doesn't convert dates correctly due to formats
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* being hard to interpret. So we use the DateTime object, manually
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* fixing dates and times (set to 00:00:00.000).
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*
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* We don't know the timezone, so just assume +00:00 (or whatever
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* DateTime chooses)
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*/
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private function fixDate($date) {
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switch($this->getInput('lang')) {
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case 'en':
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case 'de':
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$df = date_create_from_format('d.m.y', $date);
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break;
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case 'it':
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$df = date_create_from_format('d/m/y', $date);
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break;
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}
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date_time_set($df, 0, 0);
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// Debug::log(date_format($df, 'U'));
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return date_format($df, 'U');
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}
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private function extractImages($article) {
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// Notice: We can have zero or more images (though it should mostly be 1)
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$elements = $article->find('img');
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$images = array();
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foreach($elements as $img) {
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// Skip the logo (mostly provided part of a hidden div)
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if(substr($img->src, strrpos($img->src, '/') + 1) === 'logo.png')
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continue;
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$images[] = $img->src;
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}
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return $images;
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}
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#endregion
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#region News
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private function collectNews($html) {
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$articles = $html->find('div.newsTopArticle')
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or returnServerError('No articles found! Layout might have changed!');
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foreach($articles as $article) {
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$item = array();
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// Common data
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$item['uri'] = $this->extractNewsUri($article);
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$item['timestamp'] = $this->extractNewsDate($article);
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$item['title'] = $this->extractNewsTitle($article);
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if($this->getInput('full')) {
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$uri = $this->extractNewsUri($article);
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$html = getSimpleHTMLDOMCached($uri)
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or returnServerError('Failed loading full article from ' . $uri);
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$fullArticle = $html->find('div.article', 0)
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or returnServerError('No content found! Layout might have changed!');
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defaultLinkTo($fullArticle, static::URI);
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$item['author'] = $this->extractFullArticleAuthor($fullArticle);
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$item['content'] = $this->extractFullArticleContent($fullArticle);
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$item['enclosures'] = $this->extractImages($fullArticle);
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} else {
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$item['content'] = $this->extractNewsDescription($article);
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$item['enclosures'] = $this->extractImages($article);
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}
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$this->items[] = $item;
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}
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}
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private function extractNewsUri($article) {
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$element = $article->find('a', 0)
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or returnServerError('Anchor not found!');
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return $element->href;
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}
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private function extractNewsDate($article) {
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$element = $article->find('div.subheadline', 0)
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or returnServerError('Date not found!');
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// Debug::log($element->plaintext);
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$date = trim(explode('|', $element->plaintext)[0]);
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return $this->fixDate($date);
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}
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private function extractNewsDescription($article) {
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$element = $article->find('span.newsText', 0)
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or returnServerError('Description not found!');
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$element->find('a', 0)->onclick = '';
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// Debug::log($element->innertext);
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return $element->innertext;
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}
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private function extractNewsTitle($article) {
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$element = $article->find('h3', 0)
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or returnServerError('Title not found!');
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return $element->plaintext;
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}
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private function extractFullArticleContent($article) {
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$element = $article->find('div.article_body', 0)
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or returnServerError('Article body not found!');
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// Remove teaser image
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$element->find('img.teaser-img', 0)->outertext = '';
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// Remove self advertisements
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foreach($element->find('.call-action') as $adv) {
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$adv->outertext = '';
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}
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// Remove tips
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foreach($element->find('.panel-edu') as $tip) {
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$tip->outertext = '';
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}
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// Remove inline scripts (used for i.e. interactive graphs) as they are
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// rendered as a long series of strings
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foreach($element->find('script') as $script) {
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$script->outertext = '[Content removed! Visit site to see full contents!]';
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}
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return $element->innertext;
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}
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private function extractFullArticleAuthor($article) {
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$element = $article->find('span[itemprop=name]', 0)
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or returnServerError('Author not found!');
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return $element->plaintext;
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}
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#endregion
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#region Profile
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private function collectProfile($html) {
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$item = array();
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$item['uri'] = $this->getURI();
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$item['timestamp'] = $this->extractProfileDate($html);
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$item['title'] = $this->extractProfiletitle($html);
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$item['author'] = $this->extractProfileAuthor($html);
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$item['content'] = $this->extractProfileContent($html);
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$this->items[] = $item;
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}
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private function extractProfileDate($html) {
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$element = $html->find('div.infobox div.vallabel', 0)
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or returnServerError('Date not found!');
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// Debug::log($element->plaintext);
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$date = trim(explode("\r\n", $element->plaintext)[1]);
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return $this->fixDate($date);
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}
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private function extractProfileTitle($html) {
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$element = $html->find('span.h1', 0)
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or returnServerError('Title not found!');
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return $element->plaintext;
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}
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private function extractProfileContent($html) {
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// There are a few thins we are interested:
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// - Investment Strategy
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// - Description
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// - Quote
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$strategy = $html->find('div.tab-container div.col-sm-6 p', 0)
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or returnServerError('Investment Strategy not found!');
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// Description requires a bit of cleanup due to lack of propper identification
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$description = $html->find('div.headline', 5)
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or returnServerError('Description container not found!');
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$description = $description->parent();
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foreach($description->find('div') as $div) {
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$div->outertext = '';
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}
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$quote = $html->find('div.infobox div.val', 0)
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or returnServerError('Quote not found!');
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$quote_html = '<strong>Quote</strong><br><p>' . $quote . '</p>';
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$strategy_html = '';
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$description_html = '';
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if($this->getInput('strategy') === true) {
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$strategy_html = '<strong>Strategy</strong><br><p>' . $strategy . '</p><br>';
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}
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if($this->getInput('description') === true) {
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$description_html = '<strong>Description</strong><br><p>' . $description . '</p><br>';
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}
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return $strategy_html . $description_html . $quote_html;
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}
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private function extractProfileAuthor($html) {
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// Use ISIN + WKN as author
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// Notice: "identfier" is not a typo [sic]!
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$element = $html->find('span.identfier', 0)
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or returnServerError('Author not found!');
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return $element->plaintext;
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}
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#endregion
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}
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