1 files changed, 80 insertions, 0 deletions
diff --git a/lib/private/Profile/Actions/FediverseAction.php b/lib/private/Profile/Actions/FediverseAction.php
new file mode 100644
index 00000000000..b48f1db5c50
--- /dev/null
+++ b/lib/private/Profile/Actions/FediverseAction.php
@@ -0,0 +1,80 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * SPDX-FileCopyrightText: 2021 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+
+namespace OC\Profile\Actions;
+
+use OCP\Accounts\IAccountManager;
+use OCP\Accounts\PropertyDoesNotExistException;
+use OCP\IURLGenerator;
+use OCP\IUser;
+use OCP\L10N\IFactory;
+use OCP\Profile\ILinkAction;
+use function substr;
+
+class FediverseAction implements ILinkAction {
+	private string $value = '';
+
+	public function __construct(
+		private IAccountManager $accountManager,
+		private IFactory $l10nFactory,
+		private IURLGenerator $urlGenerator,
+	) {
+	}
+
+	public function preload(IUser $targetUser): void {
+		try {
+			$account = $this->accountManager->getAccount($targetUser);
+			$this->value = $account->getProperty(IAccountManager::PROPERTY_FEDIVERSE)->getValue();
+		} catch (PropertyDoesNotExistException) {
+			// `getTarget` will return null to skip this action
+			$this->value = '';
+		}
+	}
+
+	public function getAppId(): string {
+		return 'core';
+	}
+
+	public function getId(): string {
+		return IAccountManager::PROPERTY_FEDIVERSE;
+	}
+
+	public function getDisplayId(): string {
+		return $this->l10nFactory->get('lib')->t('Fediverse');
+	}
+
+	public function getTitle(): string {
+		$displayUsername = $this->value[0] === '@' ? $this->value : '@' . $this->value;
+		return $this->l10nFactory->get('lib')->t('View %s on the fediverse', [$displayUsername]);
+	}
+
+	public function getPriority(): int {
+		return 50;
+	}
+
+	public function getIcon(): string {
+		return $this->urlGenerator->getAbsoluteURL($this->urlGenerator->imagePath('core', 'actions/mastodon.svg'));
+	}
+
+	public function getTarget(): ?string {
+		if ($this->value === '') {
+			return null;
+		}
+
+		$handle = $this->value[0] === '@' ? substr($this->value, 1) : $this->value;
+		[$username, $instance] = [...explode('@', $handle, 2), ''];
+
+		if (($username === '') || ($instance === '')) {
+			return null;
+		} elseif (str_contains($username, '/') || str_contains($instance, '/')) {
+			return null;
+		}
+		return 'https://' . $instance . '/@' . $username;
+	}
+}