Add parent for invisible link shares

lib/private/share20/defaultshareprovider.php

@@ -118,6 +118,10 @@ class DefaultShareProvider implements IShareProvider {
 			if ($share->getExpirationDate() !== null) {
 				$qb->setValue('expiration', $qb->createNamedParameter($share->getExpirationDate(), 'datetime'));
 			}
+
+			if (method_exists($share, 'getParent')) {
+				$qb->setValue('parent', $qb->createNamedParameter($share->getParent()));
+			}
 		} else {
 			throw new \Exception('invalid share type!');
 		}

lib/private/share20/manager.php

@@ -414,6 +414,28 @@ class Manager implements IManager {
 		}
 	}
 
+	/**
+	 * To make sure we don't get invisible link shares we set the parent
+	 * of a link if it is a reshare. This is a quick word around
+	 * until we can properly display multiple link shares in the UI
+	 *
+	 * See: https://github.com/owncloud/core/issues/22295
+	 *
+	 * FIXME: Remove once multiple link shares can be properly displayed
+	 *
+	 * @param \OCP\Share\IShare $share
+	 */
+	protected function setLinkParent(\OCP\Share\IShare $share) {
+
+		// No sense in checking if the method is not there.
+		if (method_exists($share, 'setParent')) {
+			$storage = $share->getNode()->getStorage();
+			if ($storage->instanceOfStorage('\OCA\Files_Sharing\ISharedStorage')) {
+				$share->setParent($storage->getShareId());
+			}
+		};
+	}
+
 	/**
 	 * @param File|Folder $path
 	 */
@@ -470,6 +492,7 @@ class Manager implements IManager {
 			$this->groupCreateChecks($share);
 		} else if ($share->getShareType() === \OCP\Share::SHARE_TYPE_LINK) {
 			$this->linkCreateChecks($share);
+			$this->setLinkParent($share);
 
 			/*
 			 * For now ignore a set token.

tests/lib/share20/managertest.php

@@ -1549,6 +1549,7 @@ class ManagerTest extends \Test\TestCase {
 				'pathCreateChecks',
 				'validateExpirationDate',
 				'verifyPassword',
+				'setLinkParent',
 			])
 			->getMock();
 
@@ -1589,6 +1590,9 @@ class ManagerTest extends \Test\TestCase {
 		$manager->expects($this->once())
 			->method('verifyPassword')
 			->with('password');
+		$manager->expects($this->once())
+			->method('setLinkParent')
+			->with($share);
 
 		$this->hasher->expects($this->once())
 			->method('hash')