From 2316cb1f8b9704621b47e6eb1c2cbf30c06c552d Mon Sep 17 00:00:00 2001
From: Roeland Jago Douma <rullzer@owncloud.com>
Date: Fri, 29 Jan 2016 10:27:39 +0100
Subject: [Share 2.0] Allow moving of shares

* Only recipient can move a share
* Unit tests
---
 lib/private/share20/defaultshareprovider.php | 58 ++++++++++++++++++++++++++++
 lib/private/share20/manager.php              | 19 +++++++++
 2 files changed, 77 insertions(+)

(limited to 'lib/private/share20')

diff --git a/lib/private/share20/defaultshareprovider.php b/lib/private/share20/defaultshareprovider.php
index ed9c03020b6..224dddf4019 100644
--- a/lib/private/share20/defaultshareprovider.php
+++ b/lib/private/share20/defaultshareprovider.php
@@ -20,6 +20,7 @@
  */
 namespace OC\Share20;
 
+use OCP\Files\File;
 use OCP\Share\IShareProvider;
 use OC\Share20\Exception\InvalidShare;
 use OC\Share20\Exception\ProviderException;
@@ -383,6 +384,63 @@ class DefaultShareProvider implements IShareProvider {
 		}
 	}
 
+	/**
+	 * @inheritdoc
+	 */
+	public function move(\OCP\Share\IShare $share, IUser $recipient) {
+		if ($share->getShareType() === \OCP\Share::SHARE_TYPE_USER) {
+			// Just update the target
+			$qb = $this->dbConn->getQueryBuilder();
+			$qb->update('share')
+				->set('file_target', $qb->createNamedParameter($share->getTarget()))
+				->where($qb->expr()->eq('id', $qb->createNamedParameter($share->getId())))
+				->execute();
+
+		} else if ($share->getShareType() === \OCP\Share::SHARE_TYPE_GROUP) {
+
+			// Check if there is a usergroup share
+			$qb = $this->dbConn->getQueryBuilder();
+			$stmt = $qb->select('id')
+				->from('share')
+				->where($qb->expr()->eq('share_type', $qb->createNamedParameter(self::SHARE_TYPE_USERGROUP)))
+				->andWhere($qb->expr()->eq('share_with', $qb->createNamedParameter($recipient->getUID())))
+				->andWhere($qb->expr()->eq('parent', $qb->createNamedParameter($share->getId())))
+				->setMaxResults(1)
+				->execute();
+
+			$data = $stmt->fetch();
+			$stmt->closeCursor();
+
+			if ($data === false) {
+				// No usergroup share yet. Create one.
+				$qb = $this->dbConn->getQueryBuilder();
+				$qb->insert('share')
+					->values([
+						'share_type' => $qb->createNamedParameter(self::SHARE_TYPE_USERGROUP),
+						'share_with' => $qb->createNamedParameter($recipient->getUID()),
+						'uid_owner' => $qb->createNamedParameter($share->getShareOwner()->getUID()),
+						'uid_initiator' => $qb->createNamedParameter($share->getSharedBy()->getUID()),
+						'parent' => $qb->createNamedParameter($share->getId()),
+						'item_type' => $qb->createNamedParameter($share->getNode() instanceof File ? 'file' : 'folder'),
+						'item_source' => $qb->createNamedParameter($share->getNode()->getId()),
+						'file_source' => $qb->createNamedParameter($share->getNode()->getId()),
+						'file_target' => $qb->createNamedParameter($share->getTarget()),
+						'permissions' => $qb->createNamedParameter($share->getPermissions()),
+						'stime' => $qb->createNamedParameter($share->getShareTime()->getTimestamp()),
+					])->execute();
+			} else {
+				// Already a usergroup share. Update it.
+				$qb = $this->dbConn->getQueryBuilder();
+				$qb->update('share')
+					->set('file_target', $qb->createNamedParameter($share->getTarget()))
+					->where($qb->expr()->eq('id', $qb->createNamedParameter($data['id'])))
+					->execute();
+			}
+		}
+
+		return $share;
+	}
+
 	/**
 	 * Get all shares by the given user. Sharetype and path can be used to filter.
 	 *
diff --git a/lib/private/share20/manager.php b/lib/private/share20/manager.php
index 3c5bd197ae8..438396501e3 100644
--- a/lib/private/share20/manager.php
+++ b/lib/private/share20/manager.php
@@ -714,6 +714,25 @@ class Manager implements IManager {
 		$provider->deleteFromSelf($share, $recipient);
 	}
 
+	/**
+	 * @inheritdoc
+	 */
+	public function moveShare(\OCP\Share\IShare $share, IUser $recipient) {
+		if ($share->getShareType() === \OCP\Share::SHARE_TYPE_LINK) {
+			throw new \InvalidArgumentException('Can\'t change target of link share');
+		}
+
+		if (($share->getShareType() === \OCP\Share::SHARE_TYPE_USER && $share->getSharedWith() !== $recipient) ||
+			($share->getShareType() === \OCP\Share::SHARE_TYPE_GROUP && !$share->getSharedWith()->inGroup($recipient))) {
+			throw new \InvalidArgumentException('Invalid recipient');
+		}
+
+		list($providerId, ) = $this->splitFullId($share->getId());
+		$provider = $this->factory->getProvider($providerId);
+
+		$provider->move($share, $recipient);
+	}
+
 	/**
 	 * Get shares shared by (initiated) by the provided user.
 	 *
-- 
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