[UsenixBridge] Add bridge (#2800)

bridges/UsenixBridge.php

@@ -0,0 +1,68 @@
+<?php
+declare(strict_types=1);
+
+final class UsenixBridge extends BridgeAbstract
+{
+	const NAME = 'USENIX';
+	const URI = 'https://www.usenix.org/publications';
+	const DESCRIPTION = 'Digital publications from USENIX (usenix.org)';
+	const MAINTAINER = 'dvikan';
+	const PARAMETERS = [
+		'USENIX ;login:' => [
+		],
+	];
+
+	public function collectData()
+	{
+		if ($this->queriedContext === 'USENIX ;login:') {
+			$this->collectLoginOnlineItems();
+			return;
+		}
+		returnClientError('Illegal Context');
+	}
+
+	private function collectLoginOnlineItems(): void
+	{
+		$url = 'https://www.usenix.org/publications/loginonline';
+		$dom = getSimpleHTMLDOMCached($url);
+		$items = $dom->find('div.view-content > div');
+
+		foreach ($items as $item) {
+			$title = $item->find('.views-field-title > span', 0);
+			$author = $item->find('.views-field-pseudo-author-list > span.field-content', 0);
+			$relativeUrl = $item->find('.views-field-nothing-1 > span > a', 0);
+			$uri = sprintf('https://www.usenix.org%s', $relativeUrl->href);
+			// June 2, 2022
+			$createdAt = $item->find('div.views-field-field-lv2-publication-date > div > span', 0);
+
+			$item = [
+				'title' => $title->innertext,
+				'author' => strstr($author->plaintext, ',', true) ?: $author->plaintext,
+				'uri' => $uri,
+				'timestamp' => $createdAt->innertext,
+			];
+
+			$this->items[] = array_merge($item, $this->getItemContent($uri));
+		}
+	}
+
+	private function getItemContent(string $uri) : array
+	{
+		$html = getSimpleHTMLDOMCached($uri);
+		$content = $html->find('.paragraphs-items-full', 0)->innertext;
+		$extra = $html->find('fieldset', 0);
+		if (!empty($extra)) {
+			$content .= $extra->innertext;
+		}
+
+		$tags = [];
+		foreach($html->find('.field-name-field-lv2-tags div.field-item') as $tag) {
+			$tags[] = $tag->plaintext;
+		}
+
+		return [
+			'content' => $content,
+			'categories' => $tags
+		];
+	}
+}