[WordPressPluginUpdate] fix: broken bridge (RSS-Bridge#2572)

I think they removed the changelog html page. Or maybe it
was a redirect. Anyways, this change uses their json api
to fetch plugin data.

bridges/WordPressPluginUpdateBridge.php

@@ -1,74 +1,62 @@
 <?php
-class WordPressPluginUpdateBridge extends BridgeAbstract {
 
-	const MAINTAINER = 'teromene';
+final class WordPressPluginUpdateBridge extends BridgeAbstract {
+	const MAINTAINER = 'dvikan';
 	const NAME = 'WordPress Plugins Update Bridge';
 	const URI = 'https://wordpress.org/plugins/';
-	const CACHE_TIMEOUT = 86400; // 24h = 86400s
-	const DESCRIPTION = 'Returns latest updates of WordPress.com plugins.';
-
-	const PARAMETERS = array(
-		array(
-			'pluginUrl' => array(
-				'name' => 'URL to the plugin',
-				'exampleValue' => 'https://wordpress.org/plugins/wp-rss-aggregator/',
-				'required' => true
-			)
-		)
-	);
-
-	public function collectData(){
-
-		$request = str_replace('/', '', $this->getInput('pluginUrl'));
-		$page = self::URI . $request . '/changelog/';
-
-		$html = getSimpleHTMLDOM($page);
-
-		$content = $html->find('.block-content', 0);
-
-		$item = array();
-		$item['content'] = '';
-		$version = null;
-
-		foreach($content->children() as $element) {
-
-			if($element->tag != 'h4') {
-
-				$item['content'] .= $element;
-
-			} else {
-
-				if($version == null) {
-
-					$version = $element;
-
-				} else {
-
-					$item['title'] = $version;
-					$item['uri'] = 'https://downloads.wordpress.org/plugin/' . $request . '.' . strip_tags($version) . '.zip';
-					$this->items[] = $item;
+	const DESCRIPTION = 'Returns latest updates of wordpress.org plugins.';
+
+	const PARAMETERS = [
+		[
+			// The incorrectly named pluginUrl is kept for BC
+			'pluginUrl' => [
+				'name' => 'Plugin slug',
+				'exampleValue' => 'akismet',
+				'required' => true,
+				'title' => 'Slug or url',
+			]
+		]
+	];
+
+	public function collectData() {
+		$input = trim($this->getInput('pluginUrl'));
+		if (preg_match('#https://wordpress\.org/plugins/([\w-]+)#', $input, $m)) {
+			$slug = $m[1];
+		} else {
+			$slug = str_replace(['/'], '', $input);
+		}
 
-					$version = $element;
-					$item = array();
-					$item['content'] = '';
+		$pluginData = self::fetchPluginData($slug);
 
-				}
+		if ($pluginData->versions === []) {
+			throw new \Exception('This plugin does not have versioning data');
+		}
 
-			}
+		// We don't need trunk. I think it's the latest commit.
+		unset($pluginData->versions->trunk);
 
+		foreach ($pluginData->versions as $version => $downloadUrl) {
+			$this->items[] = [
+				'title'     => $version,
+				'uri'       => sprintf('https://wordpress.org/plugins/%s/#developers', $slug),
+				'uid'       => $downloadUrl,
+			];
 		}
 
-		$item['uri'] = 'https://downloads.wordpress.org/plugin/' . $request . '.' . strip_tags($version) . '.zip';
-		$item['title'] = $version;
-		$this->items[] = $item;
-
+		usort($this->items, function($a, $b) {
+			return version_compare($b['title'], $a['title']);
+		});
 	}
 
-	public function getName(){
-		if(!is_null($this->getInput('q'))) {
-			return $this->getInput('q') . ' : ' . self::NAME;
-		}
-
-		return parent::getName();
+	/**
+	 * Fetch plugin data from wordpress.org json api
+	 *
+	 * https://codex.wordpress.org/WordPress.org_API#Plugins
+	 * https://wordpress.org/support/topic/using-the-wordpress-org-api/
+	 */
+	private static function fetchPluginData(string $slug): \stdClass
+	{
+		$api = 'https://api.wordpress.org/plugins/info/1.2/?action=plugin_information&request[slug]=%s';
+		return json_decode(getContents(sprintf($api, $slug)));
 	}
 }