rss-bridge/bridges/StockFilingsBridge.php

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<?php
class StockFilingsBridge extends FeedExpander
{
const MAINTAINER = 'captn3m0';
const NAME = 'SEC Stock filings';
const URI = 'https://www.sec.gov/edgar/searchedgar/companysearch.html';
const CACHE_TIMEOUT = 3600; // 1h
const DESCRIPTION = 'Tracks SEC Filings for a single company';
const SEARCH_URL = 'https://www.sec.gov/cgi-bin/browse-edgar?owner=exclude&action=getcompany&CIK=';
const WEBSITE_ROOT = 'https://www.sec.gov';
const PARAMETERS = [
[
'ticker' => [
'name' => 'cik',
'required' => true,
'exampleValue' => 'AMD',
// https://stackoverflow.com/a/12827734
'pattern' => '[A-Za-z0-9]+',
],
]];
public function getIcon()
{
return 'https://www.sec.gov/favicon.ico';
}
/**
* Generates search URL
*/
private function getSearchUrl()
{
return self::SEARCH_URL . $this->getInput('ticker');
}
/**
* Returns the Company Name
*/
private function getRssFeed($html)
{
$links = $html->find('#contentDiv a');
foreach ($links as $link) {
$href = $link->href;
if (substr($href, 0, 4) !== 'http') {
$href = self::WEBSITE_ROOT . $href;
}
parse_str(html_entity_decode(parse_url($href, PHP_URL_QUERY)), $query);
if (isset($query['output']) and ($query['output'] == 'atom')) {
return $href;
}
}
return false;
}
/**
* Return \simple_html_dom object
* for the entire html of the product page
*/
private function getHtml()
{
$uri = $this->getSearchUrl();
return getSimpleHTMLDOM($uri) ?: returnServerError('Could not request SEC.');
}
/**
* Scrape the SEC Stock Filings RSS Feed URL
* and redirect there
*/
public function collectData()
{
$html = $this->getHtml();
$rssFeedUrl = $this->getRssFeed($html);
if ($rssFeedUrl) {
parent::collectExpandableDatas($rssFeedUrl);
} else {
returnClientError('Could not find RSS Feed URL. Are you sure you used a valid CIK?');
}
}
}