Use "author_handle" for the author handle extracted from Diaspora XML messages

- We have structured data under the variable name "author"
- Remove unused $uid parameter from Diaspora::storeByGuid
- Convert $person parameter to just its URL in Diaspora::authorContactByUrl
- Flip parameters in getUriFromGuid to get rid of $onlyfound

src/Protocol/WebFingerUri.php

@@ -0,0 +1,113 @@
+<?php
+/**
+ * @copyright Copyright (C) 2010-2022, the Friendica project
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace Friendica\Protocol;
+
+use GuzzleHttp\Psr7\Uri;
+
+class WebFingerUri
+{
+	/**
+	 * @var string
+	 */
+	private $user;
+	/**
+	 * @var string
+	 */
+	private $host;
+	/**
+	 * @var int|null
+	 */
+	private $port;
+	/**
+	 * @var string|null
+	 */
+	private $path;
+
+	private function __construct(string $user, string $host, int $port = null, string $path = null)
+	{
+		$this->user = $user;
+		$this->host = $host;
+		$this->port = $port;
+		$this->path = $path;
+
+		$this->validate();
+	}
+
+	/**
+	 * @param string $addr
+	 * @return WebFingerUri
+	 */
+	public static function fromString(string $addr): WebFingerUri
+	{
+		$uri = new Uri('acct://' . preg_replace('/^acct:/', '', $addr));
+
+		return new self($uri->getUserInfo(), $uri->getHost(), $uri->getPort(), $uri->getPath());
+	}
+
+	private function validate()
+	{
+		if (!$this->user) {
+			throw new \InvalidArgumentException('WebFinger URI User part is required');
+		}
+
+		if (!$this->host) {
+			throw new \InvalidArgumentException('WebFinger URI Host part is required');
+		}
+	}
+
+	public function getUser(): string
+	{
+		return $this->user;
+	}
+
+	public function getHost(): string
+	{
+		return $this->host;
+	}
+
+	public function getFullHost(): string
+	{
+		return $this->host
+			. ($this->port ? ':' . $this->port : '') .
+			($this->path ?: '');
+	}
+
+	public function getLongForm(): string
+	{
+		return 'acct:' . $this->getShortForm();
+	}
+
+	public function getShortForm(): string
+	{
+		return $this->user . '@' . $this->getFullHost();
+	}
+
+	public function getAddr(): string
+	{
+		return $this->getShortForm();
+	}
+
+	public function __toString(): string
+	{
+		return $this->getShortForm();
+	}
+}