Add interfaces to interact with subscription from support app

Signed-off-by: Morris Jobke <hey@morrisjobke.de>

lib/composer/composer/autoload_classmap.php

@@ -391,6 +391,10 @@ return array(
     'OCP\\Support\\CrashReport\\ICollectBreadcrumbs' => $baseDir . '/lib/public/Support/CrashReport/ICollectBreadcrumbs.php',
     'OCP\\Support\\CrashReport\\IRegistry' => $baseDir . '/lib/public/Support/CrashReport/IRegistry.php',
     'OCP\\Support\\CrashReport\\IReporter' => $baseDir . '/lib/public/Support/CrashReport/IReporter.php',
+    'OCP\\Support\\Subscription\\Exception\\AlreadyRegisteredException' => $baseDir . '/lib/public/Support/Subscription/Exception/AlreadyRegisteredException.php',
+    'OCP\\Support\\Subscription\\IRegistry' => $baseDir . '/lib/public/Support/Subscription/IRegistry.php',
+    'OCP\\Support\\Subscription\\ISubscription' => $baseDir . '/lib/public/Support/Subscription/ISubscription.php',
+    'OCP\\Support\\Subscription\\ISupportedApps' => $baseDir . '/lib/public/Support/Subscription/ISupportedApps.php',
     'OCP\\SystemTag\\ISystemTag' => $baseDir . '/lib/public/SystemTag/ISystemTag.php',
     'OCP\\SystemTag\\ISystemTagManager' => $baseDir . '/lib/public/SystemTag/ISystemTagManager.php',
     'OCP\\SystemTag\\ISystemTagManagerFactory' => $baseDir . '/lib/public/SystemTag/ISystemTagManagerFactory.php',
@@ -1127,6 +1131,7 @@ return array(
     'OC\\Streamer' => $baseDir . '/lib/private/Streamer.php',
     'OC\\SubAdmin' => $baseDir . '/lib/private/SubAdmin.php',
     'OC\\Support\\CrashReport\\Registry' => $baseDir . '/lib/private/Support/CrashReport/Registry.php',
+    'OC\\Support\\Subscription\\Registry' => $baseDir . '/lib/private/Support/Subscription/Registry.php',
     'OC\\SystemConfig' => $baseDir . '/lib/private/SystemConfig.php',
     'OC\\SystemTag\\ManagerFactory' => $baseDir . '/lib/private/SystemTag/ManagerFactory.php',
     'OC\\SystemTag\\SystemTag' => $baseDir . '/lib/private/SystemTag/SystemTag.php',

lib/composer/composer/autoload_static.php

@@ -421,6 +421,10 @@ class ComposerStaticInit53792487c5a8370acc0b06b1a864ff4c
         'OCP\\Support\\CrashReport\\ICollectBreadcrumbs' => __DIR__ . '/../../..' . '/lib/public/Support/CrashReport/ICollectBreadcrumbs.php',
         'OCP\\Support\\CrashReport\\IRegistry' => __DIR__ . '/../../..' . '/lib/public/Support/CrashReport/IRegistry.php',
         'OCP\\Support\\CrashReport\\IReporter' => __DIR__ . '/../../..' . '/lib/public/Support/CrashReport/IReporter.php',
+        'OCP\\Support\\Subscription\\Exception\\AlreadyRegisteredException' => __DIR__ . '/../../..' . '/lib/public/Support/Subscription/Exception/AlreadyRegisteredException.php',
+        'OCP\\Support\\Subscription\\IRegistry' => __DIR__ . '/../../..' . '/lib/public/Support/Subscription/IRegistry.php',
+        'OCP\\Support\\Subscription\\ISubscription' => __DIR__ . '/../../..' . '/lib/public/Support/Subscription/ISubscription.php',
+        'OCP\\Support\\Subscription\\ISupportedApps' => __DIR__ . '/../../..' . '/lib/public/Support/Subscription/ISupportedApps.php',
         'OCP\\SystemTag\\ISystemTag' => __DIR__ . '/../../..' . '/lib/public/SystemTag/ISystemTag.php',
         'OCP\\SystemTag\\ISystemTagManager' => __DIR__ . '/../../..' . '/lib/public/SystemTag/ISystemTagManager.php',
         'OCP\\SystemTag\\ISystemTagManagerFactory' => __DIR__ . '/../../..' . '/lib/public/SystemTag/ISystemTagManagerFactory.php',
@@ -1157,6 +1161,7 @@ class ComposerStaticInit53792487c5a8370acc0b06b1a864ff4c
         'OC\\Streamer' => __DIR__ . '/../../..' . '/lib/private/Streamer.php',
         'OC\\SubAdmin' => __DIR__ . '/../../..' . '/lib/private/SubAdmin.php',
         'OC\\Support\\CrashReport\\Registry' => __DIR__ . '/../../..' . '/lib/private/Support/CrashReport/Registry.php',
+        'OC\\Support\\Subscription\\Registry' => __DIR__ . '/../../..' . '/lib/private/Support/Subscription/Registry.php',
         'OC\\SystemConfig' => __DIR__ . '/../../..' . '/lib/private/SystemConfig.php',
         'OC\\SystemTag\\ManagerFactory' => __DIR__ . '/../../..' . '/lib/private/SystemTag/ManagerFactory.php',
         'OC\\SystemTag\\SystemTag' => __DIR__ . '/../../..' . '/lib/private/SystemTag/SystemTag.php',

lib/private/Server.php

@@ -551,6 +551,7 @@ class Server extends ServerContainer implements IServerContainer {
 		$this->registerAlias('AvatarManager', AvatarManager::class);
 
 		$this->registerAlias(\OCP\Support\CrashReport\IRegistry::class, \OC\Support\CrashReport\Registry::class);
+		$this->registerAlias(\OCP\Support\Subscription\IRegistry::class, \OC\Support\Subscription\Registry::class);
 
 		$this->registerService(\OC\Log::class, function (Server $c) {
 			$logType = $c->query('AllConfig')->getSystemValue('log_type', 'file');

lib/private/Support/Subscription/Registry.php

@@ -0,0 +1,75 @@
+<?php
+declare(strict_types=1);
+
+/**
+ * @author Morris Jobke <hey@morrisjobke.de>
+ *
+ * @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 <http://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace OC\Support\Subscription;
+
+use OCP\Support\Subscription\Exception\AlreadyRegisteredException;
+use OCP\Support\Subscription\IRegistry;
+use OCP\Support\Subscription\ISubscription;
+use OCP\Support\Subscription\ISupportedApps;
+
+class Registry implements IRegistry {
+
+	/** @var ISubscription */
+	private $subscription = null;
+
+	/**
+	 * Register a subscription instance. In case it is called multiple times the
+	 * first one is used.
+	 *
+	 * @param ISubscription $subscription
+	 * @throws AlreadyRegisteredException
+	 *
+	 * @since 17.0.0
+	 */
+	public function register(ISubscription $subscription): void {
+		if ($this->subscription !== null) {
+			throw new AlreadyRegisteredException();
+		}
+		$this->subscription = $subscription;
+	}
+
+	/**
+	 * Fetches the list of app IDs that are supported by the subscription
+	 *
+	 * @since 17.0.0
+	 */
+	public function delegateGetSupportedApps(): array {
+		if ($this->subscription instanceof ISupportedApps) {
+			return $this->subscription->getSupportedApps();
+		}
+		return [];
+	}
+
+	/**
+	 * Indicates if a valid subscription is available
+	 *
+	 * @since 17.0.0
+	 */
+	public function delegateHasValidSubscription(): bool {
+		if ($this->subscription instanceof ISubscription) {
+			return $this->subscription->hasValidSubscription();
+		}
+		return false;
+	}
+}

lib/public/Support/Subscription/Exception/AlreadyRegisteredException.php

@@ -0,0 +1,30 @@
+<?php
+declare(strict_types=1);
+
+/**
+ * @author Morris Jobke <hey@morrisjobke.de>
+ *
+ * @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 <http://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace OCP\Support\Subscription\Exception;
+
+/**
+ * @since 17.0.0
+ */
+class AlreadyRegisteredException extends \Exception {
+}

lib/public/Support/Subscription/IRegistry.php

@@ -0,0 +1,57 @@
+<?php
+declare(strict_types=1);
+
+/**
+ * @author Morris Jobke <hey@morrisjobke.de>
+ *
+ * @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 <http://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace OCP\Support\Subscription;
+
+use OCP\Support\Subscription\Exception\AlreadyRegisteredException;
+
+/**
+ * @since 17.0.0
+ */
+interface IRegistry {
+
+	/**
+	 * Register a subscription instance. In case it is called multiple times the
+	 * first one is used.
+	 *
+	 * @param ISubscription $subscription
+	 * @throws AlreadyRegisteredException
+	 *
+	 * @since 17.0.0
+	 */
+	public function register(ISubscription $subscription): void;
+
+	/**
+	 * Fetches the list of app IDs that are supported by the subscription
+	 *
+	 * @since 17.0.0
+	 */
+	public function delegateGetSupportedApps(): array;
+
+	/**
+	 * Indicates if a valid subscription is available
+	 *
+	 * @since 17.0.0
+	 */
+	public function delegateHasValidSubscription(): bool;
+}

lib/public/Support/Subscription/ISubscription.php

@@ -0,0 +1,37 @@
+<?php
+declare(strict_types=1);
+
+/**
+ * @author Morris Jobke <hey@morrisjobke.de>
+ *
+ * @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 <http://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace OCP\Support\Subscription;
+
+/**
+ * @since 17.0.0
+ */
+interface ISubscription {
+
+	/**
+	 * Indicates if a valid subscription is available
+	 *
+	 * @since 17.0.0
+	 */
+	public function hasValidSubscription(): bool;
+}

lib/public/Support/Subscription/ISupportedApps.php

@@ -0,0 +1,37 @@
+<?php
+declare(strict_types=1);
+
+/**
+ * @author Morris Jobke <hey@morrisjobke.de>
+ *
+ * @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 <http://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace OCP\Support\Subscription;
+
+/**
+ * @since 17.0.0
+ */
+interface ISupportedApps extends ISubscription {
+
+	/**
+	 * Fetches the list of app IDs that are supported by the subscription
+	 *
+	 * @since 17.0.0
+	 */
+	public function getSupportedApps(): array;
+}

tests/lib/Support/Subscription/RegistryTest.php

@@ -0,0 +1,87 @@
+<?php
+
+/**
+ * @author Morris Jobke <hey@morrisjobke.de>
+ *
+ * @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 <http://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace Test\Support\Subscription;
+
+use OC\Support\Subscription\Registry;
+use OCP\Support\Subscription\ISubscription;
+use OCP\Support\Subscription\ISupportedApps;
+use Test\TestCase;
+
+class RegistryTest extends TestCase {
+
+	/** @var Registry */
+	private $registry;
+
+	protected function setUp() {
+		parent::setUp();
+
+		$this->registry = new Registry();
+	}
+
+	/**
+	 * Doesn't assert anything, just checks whether anything "explodes"
+	 */
+	public function testDelegateToNone() {
+		$this->registry->delegateHasValidSubscription();
+		$this->addToAssertionCount(1);
+	}
+
+	/**
+	 * @expectedException \OCP\Support\Subscription\Exception\AlreadyRegisteredException
+	 */
+	public function testDoubleRegistration() {
+		/* @var ISubscription $subscription1 */
+		$subscription1 = $this->createMock(ISubscription::class);
+		/* @var ISubscription $subscription2 */
+		$subscription2 = $this->createMock(ISubscription::class);
+		$this->registry->register($subscription1);
+		$this->registry->register($subscription2);
+	}
+
+	public function testNoSupportApp() {
+		$this->assertSame([], $this->registry->delegateGetSupportedApps());
+		$this->assertSame(false, $this->registry->delegateHasValidSubscription());
+	}
+
+	public function testDelegateHasValidSubscription() {
+		/* @var ISubscription|\PHPUnit_Framework_MockObject_MockObject $subscription */
+		$subscription = $this->createMock(ISubscription::class);
+		$subscription->expects($this->once())
+			->method('hasValidSubscription')
+			->willReturn(true);
+		$this->registry->register($subscription);
+
+		$this->assertSame(true, $this->registry->delegateHasValidSubscription());
+	}
+
+	public function testDelegateGetSupportedApps() {
+		/* @var ISupportedApps|\PHPUnit_Framework_MockObject_MockObject $subscription */
+		$subscription = $this->createMock(ISupportedApps::class);
+		$subscription->expects($this->once())
+			->method('getSupportedApps')
+			->willReturn(['abc']);
+		$this->registry->register($subscription);
+
+		$this->assertSame(['abc'], $this->registry->delegateGetSupportedApps());
+	}
+}