diff --git a/lib/composer/composer/autoload_classmap.php b/lib/composer/composer/autoload_classmap.php
index b8ca03f05d..3130c2edd9 100644
--- a/lib/composer/composer/autoload_classmap.php
+++ b/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',
diff --git a/lib/composer/composer/autoload_static.php b/lib/composer/composer/autoload_static.php
index b48c54b1e0..12b1fc0340 100644
--- a/lib/composer/composer/autoload_static.php
+++ b/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',
diff --git a/lib/private/Server.php b/lib/private/Server.php
index aaceac004c..942bef3b63 100644
--- a/lib/private/Server.php
+++ b/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');
diff --git a/lib/private/Support/Subscription/Registry.php b/lib/private/Support/Subscription/Registry.php
new file mode 100644
index 0000000000..89439cb814
--- /dev/null
+++ b/lib/private/Support/Subscription/Registry.php
@@ -0,0 +1,75 @@
+
+ *
+ * @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 .
+ *
+ */
+
+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;
+ }
+}
diff --git a/lib/public/Support/Subscription/Exception/AlreadyRegisteredException.php b/lib/public/Support/Subscription/Exception/AlreadyRegisteredException.php
new file mode 100644
index 0000000000..1870110224
--- /dev/null
+++ b/lib/public/Support/Subscription/Exception/AlreadyRegisteredException.php
@@ -0,0 +1,30 @@
+
+ *
+ * @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 .
+ *
+ */
+
+namespace OCP\Support\Subscription\Exception;
+
+/**
+ * @since 17.0.0
+ */
+class AlreadyRegisteredException extends \Exception {
+}
diff --git a/lib/public/Support/Subscription/IRegistry.php b/lib/public/Support/Subscription/IRegistry.php
new file mode 100644
index 0000000000..7782f201f2
--- /dev/null
+++ b/lib/public/Support/Subscription/IRegistry.php
@@ -0,0 +1,57 @@
+
+ *
+ * @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 .
+ *
+ */
+
+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;
+}
diff --git a/lib/public/Support/Subscription/ISubscription.php b/lib/public/Support/Subscription/ISubscription.php
new file mode 100644
index 0000000000..fc53fe08da
--- /dev/null
+++ b/lib/public/Support/Subscription/ISubscription.php
@@ -0,0 +1,37 @@
+
+ *
+ * @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 .
+ *
+ */
+
+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;
+}
diff --git a/lib/public/Support/Subscription/ISupportedApps.php b/lib/public/Support/Subscription/ISupportedApps.php
new file mode 100644
index 0000000000..82357499c5
--- /dev/null
+++ b/lib/public/Support/Subscription/ISupportedApps.php
@@ -0,0 +1,37 @@
+
+ *
+ * @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 .
+ *
+ */
+
+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;
+}
diff --git a/tests/lib/Support/Subscription/RegistryTest.php b/tests/lib/Support/Subscription/RegistryTest.php
new file mode 100644
index 0000000000..21dad6e50e
--- /dev/null
+++ b/tests/lib/Support/Subscription/RegistryTest.php
@@ -0,0 +1,87 @@
+
+ *
+ * @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 .
+ *
+ */
+
+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());
+ }
+}