From 684558e276af9af6858adfa6d9d5d0e5bf964bb6 Mon Sep 17 00:00:00 2001
From: Nemo <me@captnemo.in>
Date: Mon, 18 Mar 2019 01:10:21 +0530
Subject: [PATCH] [StockFilingsBridge] Add new bridge (#1011)

---
 bridges/StockFilingsBridge.php | 80 ++++++++++++++++++++++++++++++++++
 lib/FeedItem.php               |  2 +-
 2 files changed, 81 insertions(+), 1 deletion(-)
 create mode 100644 bridges/StockFilingsBridge.php

diff --git a/bridges/StockFilingsBridge.php b/bridges/StockFilingsBridge.php
new file mode 100644
index 00000000..f774244a
--- /dev/null
+++ b/bridges/StockFilingsBridge.php
@@ -0,0 +1,80 @@
+<?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 = array(
+		array(
+		'ticker' => array(
+			'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?');
+		}
+	}
+}
diff --git a/lib/FeedItem.php b/lib/FeedItem.php
index aedf615a..de707f8b 100644
--- a/lib/FeedItem.php
+++ b/lib/FeedItem.php
@@ -76,7 +76,7 @@ class FeedItem {
 	 * $item['uri'] = 'https://www.github.com/rss-bridge/rss-bridge/';
 	 * $item['title'] = 'Title';
 	 * $item['timestamp'] = strtotime('now');
-	 * $item['autor'] = 'Unknown author';
+	 * $item['author'] = 'Unknown author';
 	 * $item['content'] = 'Hello World!';
 	 * $item['enclosures'] = array('https://github.com/favicon.ico');
 	 * $item['categories'] = array('php', 'rss-bridge', 'awesome');