Merge pull request #21532 from owncloud/share2.0_getShares

[Share 2.0] get shares

7 files changed, 734 insertions, 89 deletions

diff --git a/apps/files_sharing/api/ocssharewrapper.php b/apps/files_sharing/api/ocssharewrapper.php
index a186a34cf6a..cc52d478615 100644
--- a/apps/files_sharing/api/ocssharewrapper.php
+++ b/apps/files_sharing/api/ocssharewrapper.php
@@ -37,7 +37,7 @@ class OCSShareWrapper {
 	}
 
 	public function getAllShares($params) {
-		return \OCA\Files_Sharing\API\Local::getAllShares($params);
+		return $this->getShare20OCS()->getShares();
 	}
 
 	public function createShare() {
diff --git a/apps/files_sharing/api/share20ocs.php b/apps/files_sharing/api/share20ocs.php
index e4cc50d9c1a..c2ff94db790 100644
--- a/apps/files_sharing/api/share20ocs.php
+++ b/apps/files_sharing/api/share20ocs.php
@@ -327,6 +327,104 @@ class Share20OCS {
 		return new \OC_OCS_Result($share);
 	}
 
+	private function getSharedWithMe() {
+		$userShares = $this->shareManager->getSharedWith($this->currentUser, \OCP\Share::SHARE_TYPE_USER, -1, 0);
+		$groupShares = $this->shareManager->getSharedWith($this->currentUser, \OCP\Share::SHARE_TYPE_GROUP, -1, 0);
+
+		$shares = array_merge($userShares, $groupShares);
+
+		$formatted = [];
+		foreach ($shares as $share) {
+			$formatted[] = $this->formatShare($share);
+		}
+
+		return new \OC_OCS_Result($formatted);
+	}
+
+	/**
+	 * @param \OCP\Files\Folder $folder
+	 * @return \OC_OCS_Result
+	 */
+	private function getSharesInDir($folder) {
+		if (!($folder instanceof \OCP\Files\Folder)) {
+			return new \OC_OCS_Result(null, 400, "not a directory");
+		}
+
+		$nodes = $folder->getDirectoryListing();
+		/** @var IShare[] $shares */
+		$shares = [];
+		foreach ($nodes as $node) {
+			$shares  = array_merge($shares, $this->shareManager->getSharesBy($this->currentUser, \OCP\Share::SHARE_TYPE_USER, $node, false, -1, 0));
+			$shares = array_merge($shares, $this->shareManager->getSharesBy($this->currentUser, \OCP\Share::SHARE_TYPE_GROUP, $node, false, -1, 0));
+			$shares  = array_merge($shares, $this->shareManager->getSharesBy($this->currentUser, \OCP\Share::SHARE_TYPE_LINK, $node, false, -1, 0));
+			//TODO: Add federated shares
+
+		}
+
+		$formatted = [];
+		foreach ($shares as $share) {
+			$formatted[] = $this->formatShare($share);
+		}
+
+		return new \OC_OCS_Result($formatted);
+	}
+
+	/**
+	 * The getShares function.
+	 *
+	 * - Get shares by the current user
+	 * - Get shares by the current user and reshares (?reshares=true)
+	 * - Get shares with the current user (?shared_with_me=true)
+	 * - Get shares for a specific path (?path=...)
+	 * - Get all shares in a folder (?subfiles=true&path=..)
+	 *
+	 * @return \OC_OCS_Result
+	 */
+	public function getShares() {
+		$sharedWithMe = $this->request->getParam('shared_with_me', null);
+		$reshares = $this->request->getParam('reshares', null);
+		$subfiles = $this->request->getParam('subfiles');
+		$path = $this->request->getParam('path', null);
+
+		if ($sharedWithMe === 'true') {
+			return $this->getSharedWithMe();
+		}
+
+		if ($path !== null) {
+			$userFolder = $this->rootFolder->getUserFolder($this->currentUser->getUID());
+			try {
+				$path = $userFolder->get($path);
+			} catch (\OCP\Files\NotFoundException $e) {
+				return new \OC_OCS_Result(null, 404, 'wrong path, file/folder doesn\'t exist');
+			}
+		}
+
+		if ($subfiles === 'true') {
+			return $this->getSharesInDir($path);
+		}
+
+		if ($reshares === 'true') {
+			$reshares = true;
+		} else {
+			$reshares = false;
+		}
+
+		// Get all shares
+		$userShares = $this->shareManager->getSharesBy($this->currentUser, \OCP\Share::SHARE_TYPE_USER, $path, $reshares, -1, 0);
+		$groupShares = $this->shareManager->getSharesBy($this->currentUser, \OCP\Share::SHARE_TYPE_GROUP, $path, $reshares, -1, 0);
+		$linkShares = $this->shareManager->getSharesBy($this->currentUser, \OCP\Share::SHARE_TYPE_LINK, $path, $reshares, -1, 0);
+		//TODO: Add federated shares
+
+		$shares = array_merge($userShares, $groupShares, $linkShares);
+
+		$formatted = [];
+		foreach ($shares as $share) {
+			$formatted[] = $this->formatShare($share);
+		}
+
+		return new \OC_OCS_Result($formatted);
+	}
+
 	/**
 	 * @param IShare $share
 	 * @return bool
diff --git a/build/integration/features/sharing-v1.feature b/build/integration/features/sharing-v1.feature
index 1287a2daf86..dedf2c388fc 100644
--- a/build/integration/features/sharing-v1.feature
+++ b/build/integration/features/sharing-v1.feature
@@ -231,23 +231,20 @@ Feature: sharing
     And User "user2" should be included in the response
     And User "user3" should not be included in the response
 
-# Skip this test for now. Since the new shares do not create reshares
-# TODO enable when getshares is updated
-#
-#  Scenario: getting all shares of a file with reshares
-#    Given user "user0" exists
-#    And user "user1" exists
-#    And user "user2" exists
-#    And user "user3" exists
-#    And file "textfile0.txt" of user "user0" is shared with user "user1"
-#    And file "textfile0.txt" of user "user1" is shared with user "user2"
-#    And As an "user0"
-#    When sending "GET" to "/apps/files_sharing/api/v1/shares?reshares=true&path=textfile0.txt"
-#    Then the OCS status code should be "100"
-#    And the HTTP status code should be "200"
-#    And User "user1" should be included in the response
-#    And User "user2" should be included in the response
-#    And User "user3" should not be included in the response
+  Scenario: getting all shares of a file with reshares
+    Given user "user0" exists
+    And user "user1" exists
+    And user "user2" exists
+    And user "user3" exists
+    And file "textfile0.txt" of user "user0" is shared with user "user1"
+    And file "textfile0 (2).txt" of user "user1" is shared with user "user2"
+    And As an "user0"
+    When sending "GET" to "/apps/files_sharing/api/v1/shares?reshares=true&path=textfile0.txt"
+    Then the OCS status code should be "100"
+    And the HTTP status code should be "200"
+    And User "user1" should be included in the response
+    And User "user2" should be included in the response
+    And User "user3" should not be included in the response
 
   Scenario: getting share info of a share
     Given user "user0" exists
@@ -316,6 +313,19 @@ Feature: sharing
     And the HTTP status code should be "200"
     And last share_id is included in the answer
 
+  Scenario: Sharee can see the group share
+    Given As an "admin"
+    And user "user0" exists
+    And user "user1" exists
+    And group "group0" exists
+    And user "user1" belongs to group "group0"
+    And file "textfile0.txt" of user "user0" is shared with group "group0"
+    And As an "user1"
+    When sending "GET" to "/apps/files_sharing/api/v1/shares?shared_with_me=true"
+    Then the OCS status code should be "100"
+    And the HTTP status code should be "200"
+    And last share_id is included in the answer
+
   Scenario: User is not allowed to reshare file
     As an "admin"
     Given user "user0" exists
diff --git a/lib/private/share20/defaultshareprovider.php b/lib/private/share20/defaultshareprovider.php
index d47919d21a3..5d768a4bc4b 100644
--- a/lib/private/share20/defaultshareprovider.php
+++ b/lib/private/share20/defaultshareprovider.php
@@ -32,6 +32,8 @@ use OCP\Files\IRootFolder;
 use OCP\IDBConnection;
 use OCP\Files\Node;
 
+use Doctrine\DBAL\Connection;
+
 /**
  * Class DefaultShareProvider
  *
@@ -240,15 +242,67 @@ class DefaultShareProvider implements IShareProvider {
 	}
 
 	/**
-	 * Get all shares by the given user
+	 * Get all shares by the given user. Sharetype and path can be used to filter.
 	 *
 	 * @param IUser $user
 	 * @param int $shareType
+	 * @param \OCP\Files\File|\OCP\Files\Folder $node
+	 * @param bool $reshares Also get the shares where $user is the owner instead of just the shares where $user is the initiator
+	 * @param int $limit The maximum number of shares to be returned, -1 for all shares
 	 * @param int $offset
-	 * @param int $limit
 	 * @return Share[]
 	 */
-	public function getShares(IUser $user, $shareType, $offset, $limit) {
+	public function getSharesBy(IUser $user, $shareType, $node, $reshares, $limit, $offset) {
+		$qb = $this->dbConn->getQueryBuilder();
+		$qb->select('*')
+			->from('share');
+
+		$qb->andWhere($qb->expr()->eq('share_type', $qb->createNamedParameter($shareType)));
+
+		/**
+		 * Reshares for this user are shares where they are the owner.
+		 */
+		if ($reshares === false) {
+			//Special case for old shares created via the web UI
+			$or1 = $qb->expr()->andX(
+				$qb->expr()->eq('uid_owner', $qb->createNamedParameter($user->getUID())),
+				$qb->expr()->isNull('uid_initiator')
+			);
+
+			$qb->andWhere(
+				$qb->expr()->orX(
+					$qb->expr()->eq('uid_initiator', $qb->createNamedParameter($user->getUID())),
+					$or1
+				)
+			);
+		} else {
+			$qb->andWhere(
+				$qb->expr()->orX(
+					$qb->expr()->eq('uid_owner', $qb->createNamedParameter($user->getUID())),
+					$qb->expr()->eq('uid_initiator', $qb->createNamedParameter($user->getUID()))
+				)
+			);
+		}
+
+		if ($node !== null) {
+			$qb->andWhere($qb->expr()->eq('file_source', $qb->createNamedParameter($node->getId())));
+		}
+
+		if ($limit !== -1) {
+			$qb->setMaxResults($limit);
+		}
+
+		$qb->setFirstResult($offset);
+		$qb->orderBy('id');
+
+		$cursor = $qb->execute();
+		$shares = [];
+		while($data = $cursor->fetch()) {
+			$shares[] = $this->createShare($data);
+		}
+		$cursor->closeCursor();
+
+		return $shares;
 	}
 
 	/**
@@ -324,11 +378,94 @@ class DefaultShareProvider implements IShareProvider {
 	/**
 	 * Get shared with the given user
 	 *
-	 * @param IUser $user
-	 * @param int $shareType
-	 * @param Share
+	 * @param IUser $user get shares where this user is the recipient
+	 * @param int $shareType \OCP\Share::SHARE_TYPE_USER or \OCP\Share::SHARE_TYPE_GROUP are supported
+	 * @param int $limit The maximum number of shares, -1 for all
+	 * @param int $offset
+	 * @return IShare[]
+	 * @throws BackendError
 	 */
-	public function getSharedWithMe(IUser $user, $shareType = null) {
+	public function getSharedWith(IUser $user, $shareType, $limit, $offset) {
+		/** @var Share[] $shares */
+		$shares = [];
+
+		if ($shareType === \OCP\Share::SHARE_TYPE_USER) {
+			//Get shares directly with this user
+			$qb = $this->dbConn->getQueryBuilder();
+			$qb->select('*')
+				->from('share');
+
+			// Order by id
+			$qb->orderBy('id');
+
+			// Set limit and offset
+			if ($limit !== -1) {
+				$qb->setMaxResults($limit);
+			}
+			$qb->setFirstResult($offset);
+
+			$qb->where($qb->expr()->eq('share_type', $qb->createNamedParameter(\OCP\Share::SHARE_TYPE_USER)));
+			$qb->andWhere($qb->expr()->eq('share_with', $qb->createNamedParameter($user->getUID())));
+
+			$cursor = $qb->execute();
+
+			while($data = $cursor->fetch()) {
+				$shares[] = $this->createShare($data);
+			}
+			$cursor->closeCursor();
+
+		} else if ($shareType === \OCP\Share::SHARE_TYPE_GROUP) {
+			$allGroups = $this->groupManager->getUserGroups($user);
+
+			$start = 0;
+			while(true) {
+				$groups = array_slice($allGroups, $start, 100);
+				$start += 100;
+
+				if ($groups === []) {
+					break;
+				}
+
+				$qb = $this->dbConn->getQueryBuilder();
+				$qb->select('*')
+					->from('share')
+					->orderBy('id')
+					->setFirstResult(0);
+
+				if ($limit !== -1) {
+					$qb->setMaxResults($limit - count($shares));
+				}
+
+				$groups = array_map(function(IGroup $group) { return $group->getGID(); }, $groups);
+
+				$qb->where($qb->expr()->eq('share_type', $qb->createNamedParameter(\OCP\Share::SHARE_TYPE_GROUP)));
+				$qb->andWhere($qb->expr()->in('share_with', $qb->createNamedParameter(
+					$groups,
+					Connection::PARAM_STR_ARRAY
+				)));
+
+				$cursor = $qb->execute();
+				while($data = $cursor->fetch()) {
+					if ($offset > 0) {
+						$offset--;
+						continue;
+					}
+					$shares[] = $this->createShare($data);
+				}
+				$cursor->closeCursor();
+			}
+
+			/*
+ 			 * Resolve all group shares to user specific shares
+ 			 * TODO: Optmize this!
+ 			 */
+			$shares = array_map([$this, 'resolveGroupShare'], $shares);
+		} else {
+			throw new BackendError('Invalid backend');
+		}
+
+
+		return $shares;
 	}
 
 	/**
@@ -454,4 +591,31 @@ class DefaultShareProvider implements IShareProvider {
 		return $nodes[0];
 	}
 
+	/**
+	 * Resolve a group share to a user specific share
+	 * Thus if the user moved their group share make sure this is properly reflected here.
+	 *
+	 * @param Share $share
+	 * @return Share Returns the updated share if one was found else return the original share.
+	 */
+	private function resolveGroupShare(Share $share) {
+		$qb = $this->dbConn->getQueryBuilder();
+
+		$stmt = $qb->select('*')
+			->from('share')
+			->where($qb->expr()->eq('parent', $qb->createNamedParameter($share->getId())))
+			->andWhere($qb->expr()->eq('share_type', $qb->createNamedParameter(self::SHARE_TYPE_USERGROUP)))
+			->execute();
+
+		$data = $stmt->fetch();
+		$stmt->closeCursor();
+
+		if ($data !== false) {
+			$share->setPermissions($data['permissions']);
+			$share->setTarget($data['file_target']);
+		}
+
+		return $share;
+	}
+
 }
\ No newline at end of file
diff --git a/lib/private/share20/ishareprovider.php b/lib/private/share20/ishareprovider.php
index 81770a45874..36d0f10c7f1 100644
--- a/lib/private/share20/ishareprovider.php
+++ b/lib/private/share20/ishareprovider.php
@@ -62,11 +62,13 @@ interface IShareProvider {
 	 *
 	 * @param IUser $user
 	 * @param int $shareType
+	 * @param \OCP\Files\File|\OCP\Files\Folder $node
+	 * @param bool $reshares Also get the shares where $user is the owner instead of just the shares where $user is the initiator
+	 * @param int $limit The maximum number of shares to be returned, -1 for all shares
 	 * @param int $offset
-	 * @param int $limit
 	 * @return Share[]
 	 */
-	public function getShares(IUser $user, $shareType, $offset, $limit);
+	public function getSharesBy(IUser $user, $shareType, $node, $reshares, $limit, $offset);
 
 	/**
 	 * Get share by id
@@ -96,11 +98,13 @@ interface IShareProvider {
 	/**
 	 * Get shared with the given user
 	 *
-	 * @param IUser $user
+	 * @param IUser $user get shares where this user is the recipient
 	 * @param int $shareType
+	 * @param int $limit The max number of entries returned, -1 for all
+	 * @param int $offset
 	 * @param Share
 	 */
-	public function getSharedWithMe(IUser $user, $shareType = null);
+	public function getSharedWith(IUser $user, $shareType, $limit, $offset);
 
 	/**
 	 * Get a share by token
diff --git a/lib/private/share20/manager.php b/lib/private/share20/manager.php
index 2be8fb5174d..3935307b977 100644
--- a/lib/private/share20/manager.php
+++ b/lib/private/share20/manager.php
@@ -605,14 +605,43 @@ class Manager {
 		\OC_Hook::emit('OCP\Share', 'post_unshare', $hookParams);
 	}
 
+
 	/**
-	 * Retrieve all shares by the current user
+	 * Get shares shared by (initiated) by the provided user.
 	 *
-	 * @param int $page
-	 * @param int $perPage
-	 * @return Share[]
+	 * @param IUser $user
+	 * @param int $shareType
+	 * @param \OCP\Files\File|\OCP\Files\Folder $path
+	 * @param bool $reshares
+	 * @param int $limit The maximum number of returned results, -1 for all results
+	 * @param int $offset
+	 * @return IShare[]
 	 */
-	public function getShares($page=0, $perPage=50) {
+	public function getSharesBy(IUser $user, $shareType, $path = null, $reshares = false, $limit = 50, $offset = 0) {
+		if ($path !== null &&
+				!($path instanceof \OCP\Files\File) &&
+				!($path instanceof \OCP\Files\Folder)) {
+			throw new \InvalidArgumentException('invalid path');
+		}
+
+		$provider = $this->factory->getProviderForType($shareType);
+
+		return $provider->getSharesBy($user, $shareType, $path, $reshares, $limit, $offset);
+	}
+
+	/**
+	 * Get shares shared with $user.
+	 *
+	 * @param IUser $user
+	 * @param int $shareType
+	 * @param int $limit The maximum number of shares returned, -1 for all
+	 * @param int $offset
+	 * @return IShare[]
+	 */
+	public function getSharedWith(IUser $user, $shareType, $limit = 50, $offset = 0) {
+		$provider = $this->factory->getProviderForType($shareType);
+
+		return $provider->getSharedWith($user, $shareType, $limit, $offset);
 	}
 
 	/**
@@ -650,18 +679,6 @@ class Manager {
 	}
 
 	/**
-	 * Get all shares that are shared with the current user
-	 *
-	 * @param int $shareType
-	 * @param int $page
-	 * @param int $perPage
-	 *
-	 * @return Share[]
-	 */
-	public function getSharedWithMe($shareType = null, $page=0, $perPage=50) {
-	}
-
-	/**
 	 * Get the share by token possible with password
 	 *
 	 * @param string $token
diff --git a/tests/lib/share20/defaultshareprovidertest.php b/tests/lib/share20/defaultshareprovidertest.php
index 039692772a0..812c6ecc27e 100644
--- a/tests/lib/share20/defaultshareprovidertest.php
+++ b/tests/lib/share20/defaultshareprovidertest.php
@@ -37,13 +37,13 @@ class DefaultShareProviderTest extends \Test\TestCase {
 	/** @var IDBConnection */
 	protected $dbConn;
 
-	/** @var IUserManager */
+	/** @var IUserManager | \PHPUnit_Framework_MockObject_MockObject */
 	protected $userManager;
 
-	/** @var IGroupManager */
+	/** @var IGroupManager | \PHPUnit_Framework_MockObject_MockObject */
 	protected $groupManager;
 
-	/** @var IRootFolder */
+	/** @var IRootFolder | \PHPUnit_Framework_MockObject_MockObject */
 	protected $rootFolder;
 
 	/** @var DefaultShareProvider */
@@ -92,16 +92,7 @@ class DefaultShareProviderTest extends \Test\TestCase {
 			]);
 		$qb->execute();
 
-		// Get the id
-		$qb = $this->dbConn->getQueryBuilder();
-		$cursor = $qb->select('id')
-			->from('share')
-			->setMaxResults(1)
-			->orderBy('id', 'DESC')
-			->execute();
-		$id = $cursor->fetch();
-		$id = $id['id'];
-		$cursor->closeCursor();
+		$id = $qb->getLastInsertId();
 
 		$sharedWith = $this->getMock('OCP\IUser');
 		$sharedBy = $this->getMock('OCP\IUser');
@@ -165,15 +156,7 @@ class DefaultShareProviderTest extends \Test\TestCase {
 		$this->assertEquals(1, $qb->execute());
 
 		// Get the id
-		$qb = $this->dbConn->getQueryBuilder();
-		$cursor = $qb->select('id')
-			->from('share')
-			->setMaxResults(1)
-			->orderBy('id', 'DESC')
-			->execute();
-		$id = $cursor->fetch();
-		$id = $id['id'];
-		$cursor->closeCursor();
+		$id = $qb->getLastInsertId();
 
 		$sharedWith = $this->getMock('OCP\IGroup');
 		$sharedBy = $this->getMock('OCP\IUser');
@@ -242,16 +225,7 @@ class DefaultShareProviderTest extends \Test\TestCase {
 			]);
 		$this->assertEquals(1, $qb->execute());
 
-		// Get the id
-		$qb = $this->dbConn->getQueryBuilder();
-		$cursor = $qb->select('id')
-			->from('share')
-			->setMaxResults(1)
-			->orderBy('id', 'DESC')
-			->execute();
-		$id = $cursor->fetch();
-		$id = $id['id'];
-		$cursor->closeCursor();
+		$id = $qb->getLastInsertId();
 
 		$sharedBy = $this->getMock('OCP\IUser');
 		$sharedBy->method('getUID')->willReturn('sharedBy');
@@ -311,17 +285,7 @@ class DefaultShareProviderTest extends \Test\TestCase {
 			]);
 		$this->assertEquals(1, $qb->execute());
 
-		// Get the id
-		$qb = $this->dbConn->getQueryBuilder();
-		$cursor = $qb->select('id')
-			->from('share')
-			->setMaxResults(1)
-			->orderBy('id', 'DESC')
-			->execute();
-		$id = $cursor->fetch();
-		$id = $id['id'];
-		$cursor->closeCursor();
-
+		$id = $qb->getLastInsertId();
 
 		$share = $this->getMock('OC\Share20\IShare');
 		$share->method('getId')->willReturn($id);
@@ -771,4 +735,392 @@ class DefaultShareProviderTest extends \Test\TestCase {
 	public function testGetShareByTokenNotFound() {
 		$this->provider->getShareByToken('invalidtoken');
 	}
+
+	public function testGetSharedWithUser() {
+		$qb = $this->dbConn->getQueryBuilder();
+		$qb->insert('share')
+			->values([
+				'share_type' => $qb->expr()->literal(\OCP\Share::SHARE_TYPE_USER),
+				'share_with' => $qb->expr()->literal('sharedWith'),
+				'uid_owner' => $qb->expr()->literal('shareOwner'),
+				'uid_initiator' => $qb->expr()->literal('sharedBy'),
+				'item_type'   => $qb->expr()->literal('file'),
+				'file_source' => $qb->expr()->literal(42),
+				'file_target' => $qb->expr()->literal('myTarget'),
+				'permissions' => $qb->expr()->literal(13),
+			]);
+		$this->assertEquals(1, $qb->execute());
+		$id = $qb->getLastInsertId();
+
+		$qb = $this->dbConn->getQueryBuilder();
+		$qb->insert('share')
+			->values([
+				'share_type' => $qb->expr()->literal(\OCP\Share::SHARE_TYPE_USER),
+				'share_with' => $qb->expr()->literal('sharedWith2'),
+				'uid_owner' => $qb->expr()->literal('shareOwner2'),
+				'uid_initiator' => $qb->expr()->literal('sharedBy2'),
+				'item_type'   => $qb->expr()->literal('file2'),
+				'file_source' => $qb->expr()->literal(43),
+				'file_target' => $qb->expr()->literal('myTarget2'),
+				'permissions' => $qb->expr()->literal(14),
+			]);
+		$this->assertEquals(1, $qb->execute());
+
+		$user = $this->getMock('\OCP\IUser');
+		$user->method('getUID')->willReturn('sharedWith');
+		$owner = $this->getMock('\OCP\IUser');
+		$owner->method('getUID')->willReturn('shareOwner');
+		$initiator = $this->getMock('\OCP\IUser');
+		$initiator->method('getUID')->willReturn('sharedBy');
+
+		$this->userManager->method('get')->willReturnMap([
+			['sharedWith', $user],
+			['shareOwner', $owner],
+			['sharedBy', $initiator],
+		]);
+
+		$file = $this->getMock('\OCP\Files\File');
+		$this->rootFolder->method('getUserFolder')->with('shareOwner')->will($this->returnSelf());
+		$this->rootFolder->method('getById')->with(42)->willReturn([$file]);
+
+		$share = $this->provider->getSharedWith($user, \OCP\Share::SHARE_TYPE_USER, 1 , 0);
+		$this->assertCount(1, $share);
+
+		$share = $share[0];
+		$this->assertEquals($id, $share->getId());
+		$this->assertEquals($user, $share->getSharedWith());
+		$this->assertEquals($owner, $share->getShareOwner());
+		$this->assertEquals($initiator, $share->getSharedBy());
+		$this->assertEquals(\OCP\Share::SHARE_TYPE_USER, $share->getShareType());
+	}
+
+	public function testGetSharedWithGroup() {
+		$qb = $this->dbConn->getQueryBuilder();
+		$qb->insert('share')
+			->values([
+				'share_type' => $qb->expr()->literal(\OCP\Share::SHARE_TYPE_GROUP),
+				'share_with' => $qb->expr()->literal('sharedWith'),
+				'uid_owner' => $qb->expr()->literal('shareOwner2'),
+				'uid_initiator' => $qb->expr()->literal('sharedBy2'),
+				'item_type'   => $qb->expr()->literal('file'),
+				'file_source' => $qb->expr()->literal(43),
+				'file_target' => $qb->expr()->literal('myTarget2'),
+				'permissions' => $qb->expr()->literal(14),
+			]);
+		$this->assertEquals(1, $qb->execute());
+
+		$qb = $this->dbConn->getQueryBuilder();
+		$qb->insert('share')
+			->values([
+				'share_type' => $qb->expr()->literal(\OCP\Share::SHARE_TYPE_GROUP),
+				'share_with' => $qb->expr()->literal('sharedWith'),
+				'uid_owner' => $qb->expr()->literal('shareOwner'),
+				'uid_initiator' => $qb->expr()->literal('sharedBy'),
+				'item_type'   => $qb->expr()->literal('file'),
+				'file_source' => $qb->expr()->literal(42),
+				'file_target' => $qb->expr()->literal('myTarget'),
+				'permissions' => $qb->expr()->literal(13),
+			]);
+		$this->assertEquals(1, $qb->execute());
+		$id = $qb->getLastInsertId();
+
+		$groups = [];
+		foreach(range(0, 100) as $i) {
+			$group = $this->getMock('\OCP\IGroup');
+			$group->method('getGID')->willReturn('group'.$i);
+			$groups[] = $group;
+		}
+
+		$group = $this->getMock('\OCP\IGroup');
+		$group->method('getGID')->willReturn('sharedWith');
+		$groups[] = $group;
+
+		$user = $this->getMock('\OCP\IUser');
+		$user->method('getUID')->willReturn('sharedWith');
+		$owner = $this->getMock('\OCP\IUser');
+		$owner->method('getUID')->willReturn('shareOwner');
+		$initiator = $this->getMock('\OCP\IUser');
+		$initiator->method('getUID')->willReturn('sharedBy');
+
+		$this->userManager->method('get')->willReturnMap([
+			['shareOwner', $owner],
+			['sharedBy', $initiator],
+		]);
+		$this->groupManager->method('getUserGroups')->with($user)->willReturn($groups);
+		$this->groupManager->method('get')->with('sharedWith')->willReturn($group);
+
+		$file = $this->getMock('\OCP\Files\File');
+		$this->rootFolder->method('getUserFolder')->with('shareOwner')->will($this->returnSelf());
+		$this->rootFolder->method('getById')->with(42)->willReturn([$file]);
+
+		$share = $this->provider->getSharedWith($user, \OCP\Share::SHARE_TYPE_GROUP, 20 , 1);
+		$this->assertCount(1, $share);
+
+		$share = $share[0];
+		$this->assertEquals($id, $share->getId());
+		$this->assertEquals($group, $share->getSharedWith());
+		$this->assertEquals($owner, $share->getShareOwner());
+		$this->assertEquals($initiator, $share->getSharedBy());
+		$this->assertEquals(\OCP\Share::SHARE_TYPE_GROUP, $share->getShareType());
+	}
+
+	public function testGetSharedWithGroupUserModified() {
+		$qb = $this->dbConn->getQueryBuilder();
+		$qb->insert('share')
+			->values([
+				'share_type' => $qb->expr()->literal(\OCP\Share::SHARE_TYPE_GROUP),
+				'share_with' => $qb->expr()->literal('sharedWith'),
+				'uid_owner' => $qb->expr()->literal('shareOwner'),
+				'uid_initiator' => $qb->expr()->literal('sharedBy'),
+				'item_type'   => $qb->expr()->literal('file'),
+				'file_source' => $qb->expr()->literal(42),
+				'file_target' => $qb->expr()->literal('myTarget'),
+				'permissions' => $qb->expr()->literal(13),
+			]);
+		$this->assertEquals(1, $qb->execute());
+		$id = $qb->getLastInsertId();
+
+		$qb = $this->dbConn->getQueryBuilder();
+		$qb->insert('share')
+			->values([
+				'share_type' => $qb->expr()->literal(2),
+				'share_with' => $qb->expr()->literal('user'),
+				'uid_owner' => $qb->expr()->literal('shareOwner'),
+				'uid_initiator' => $qb->expr()->literal('sharedBy'),
+				'item_type'   => $qb->expr()->literal('file'),
+				'file_source' => $qb->expr()->literal(42),
+				'file_target' => $qb->expr()->literal('userTarget'),
+				'permissions' => $qb->expr()->literal(0),
+				'parent' => $qb->expr()->literal($id),
+			]);
+		$this->assertEquals(1, $qb->execute());
+
+		$group = $this->getMock('\OCP\IGroup');
+		$group->method('getGID')->willReturn('sharedWith');
+		$groups = [$group];
+
+		$user = $this->getMock('\OCP\IUser');
+		$user->method('getUID')->willReturn('user');
+		$owner = $this->getMock('\OCP\IUser');
+		$owner->method('getUID')->willReturn('shareOwner');
+		$initiator = $this->getMock('\OCP\IUser');
+		$initiator->method('getUID')->willReturn('sharedBy');
+
+		$this->userManager->method('get')->willReturnMap([
+			['shareOwner', $owner],
+			['sharedBy', $initiator],
+		]);
+		$this->groupManager->method('getUserGroups')->with($user)->willReturn($groups);
+		$this->groupManager->method('get')->with('sharedWith')->willReturn($group);
+
+		$file = $this->getMock('\OCP\Files\File');
+		$this->rootFolder->method('getUserFolder')->with('shareOwner')->will($this->returnSelf());
+		$this->rootFolder->method('getById')->with(42)->willReturn([$file]);
+
+		$share = $this->provider->getSharedWith($user, \OCP\Share::SHARE_TYPE_GROUP, -1, 0);
+		$this->assertCount(1, $share);
+
+		$share = $share[0];
+		$this->assertEquals($id, $share->getId());
+		$this->assertEquals($group, $share->getSharedWith());
+		$this->assertEquals($owner, $share->getShareOwner());
+		$this->assertEquals($initiator, $share->getSharedBy());
+		$this->assertEquals(\OCP\Share::SHARE_TYPE_GROUP, $share->getShareType());
+		$this->assertEquals(0, $share->getPermissions());
+		$this->assertEquals('userTarget', $share->getTarget());
+	}
+
+	public function testGetSharesBy() {
+		$qb = $this->dbConn->getQueryBuilder();
+		$qb->insert('share')
+			->values([
+				'share_type' => $qb->expr()->literal(\OCP\Share::SHARE_TYPE_USER),
+				'share_with' => $qb->expr()->literal('sharedWith'),
+				'uid_owner' => $qb->expr()->literal('shareOwner'),
+				'uid_initiator' => $qb->expr()->literal('sharedBy'),
+				'item_type'   => $qb->expr()->literal('file'),
+				'file_source' => $qb->expr()->literal(42),
+				'file_target' => $qb->expr()->literal('myTarget'),
+				'permissions' => $qb->expr()->literal(13),
+			]);
+		$this->assertEquals(1, $qb->execute());
+		$id = $qb->getLastInsertId();
+
+		$qb = $this->dbConn->getQueryBuilder();
+		$qb->insert('share')
+			->values([
+				'share_type' => $qb->expr()->literal(\OCP\Share::SHARE_TYPE_USER),
+				'share_with' => $qb->expr()->literal('sharedWith'),
+				'uid_owner' => $qb->expr()->literal('shareOwner'),
+				'uid_initiator' => $qb->expr()->literal('sharedBy2'),
+				'item_type'   => $qb->expr()->literal('file'),
+				'file_source' => $qb->expr()->literal(42),
+				'file_target' => $qb->expr()->literal('userTarget'),
+				'permissions' => $qb->expr()->literal(0),
+				'parent' => $qb->expr()->literal($id),
+			]);
+		$this->assertEquals(1, $qb->execute());
+
+		$user = $this->getMock('\OCP\IUser');
+		$user->method('getUID')->willReturn('sharedWith');
+		$owner = $this->getMock('\OCP\IUser');
+		$owner->method('getUID')->willReturn('shareOwner');
+		$initiator = $this->getMock('\OCP\IUser');
+		$initiator->method('getUID')->willReturn('sharedBy');
+
+		$this->userManager->method('get')->willReturnMap([
+			['sharedWith', $user],
+			['shareOwner', $owner],
+			['sharedBy', $initiator],
+		]);
+
+		$file = $this->getMock('\OCP\Files\File');
+		$this->rootFolder->method('getUserFolder')->with('shareOwner')->will($this->returnSelf());
+		$this->rootFolder->method('getById')->with(42)->willReturn([$file]);
+
+		$share = $this->provider->getSharesBy($initiator, \OCP\Share::SHARE_TYPE_USER, null, false, 1, 0);
+		$this->assertCount(1, $share);
+
+		$share = $share[0];
+		$this->assertEquals($id, $share->getId());
+		$this->assertEquals($user, $share->getSharedWith());
+		$this->assertEquals($owner, $share->getShareOwner());
+		$this->assertEquals($initiator, $share->getSharedBy());
+		$this->assertEquals(\OCP\Share::SHARE_TYPE_USER, $share->getShareType());
+		$this->assertEquals(13, $share->getPermissions());
+		$this->assertEquals('myTarget', $share->getTarget());
+	}
+
+	public function testGetSharesNode() {
+		$qb = $this->dbConn->getQueryBuilder();
+		$qb->insert('share')
+			->values([
+				'share_type' => $qb->expr()->literal(\OCP\Share::SHARE_TYPE_USER),
+				'share_with' => $qb->expr()->literal('sharedWith'),
+				'uid_owner' => $qb->expr()->literal('shareOwner'),
+				'uid_initiator' => $qb->expr()->literal('sharedBy'),
+				'item_type'   => $qb->expr()->literal('file'),
+				'file_source' => $qb->expr()->literal(42),
+				'file_target' => $qb->expr()->literal('myTarget'),
+				'permissions' => $qb->expr()->literal(13),
+			]);
+		$this->assertEquals(1, $qb->execute());
+		$id = $qb->getLastInsertId();
+
+		$qb = $this->dbConn->getQueryBuilder();
+		$qb->insert('share')
+			->values([
+				'share_type' => $qb->expr()->literal(\OCP\Share::SHARE_TYPE_USER),
+				'share_with' => $qb->expr()->literal('sharedWith'),
+				'uid_owner' => $qb->expr()->literal('shareOwner'),
+				'uid_initiator' => $qb->expr()->literal('sharedBy'),
+				'item_type'   => $qb->expr()->literal('file'),
+				'file_source' => $qb->expr()->literal(43),
+				'file_target' => $qb->expr()->literal('userTarget'),
+				'permissions' => $qb->expr()->literal(0),
+				'parent' => $qb->expr()->literal($id),
+			]);
+		$this->assertEquals(1, $qb->execute());
+
+		$user = $this->getMock('\OCP\IUser');
+		$user->method('getUID')->willReturn('sharedWith');
+		$owner = $this->getMock('\OCP\IUser');
+		$owner->method('getUID')->willReturn('shareOwner');
+		$initiator = $this->getMock('\OCP\IUser');
+		$initiator->method('getUID')->willReturn('sharedBy');
+
+		$this->userManager->method('get')->willReturnMap([
+			['sharedWith', $user],
+			['shareOwner', $owner],
+			['sharedBy', $initiator],
+		]);
+
+		$file = $this->getMock('\OCP\Files\File');
+		$file->method('getId')->willReturn(42);
+		$this->rootFolder->method('getUserFolder')->with('shareOwner')->will($this->returnSelf());
+		$this->rootFolder->method('getById')->with(42)->willReturn([$file]);
+
+		$share = $this->provider->getSharesBy($initiator, \OCP\Share::SHARE_TYPE_USER, $file, false, 1, 0);
+		$this->assertCount(1, $share);
+
+		$share = $share[0];
+		$this->assertEquals($id, $share->getId());
+		$this->assertEquals($user, $share->getSharedWith());
+		$this->assertEquals($owner, $share->getShareOwner());
+		$this->assertEquals($initiator, $share->getSharedBy());
+		$this->assertEquals(\OCP\Share::SHARE_TYPE_USER, $share->getShareType());
+		$this->assertEquals(13, $share->getPermissions());
+		$this->assertEquals('myTarget', $share->getTarget());
+	}
+
+	public function testGetSharesReshare() {
+		$qb = $this->dbConn->getQueryBuilder();
+		$qb->insert('share')
+			->values([
+				'share_type' => $qb->expr()->literal(\OCP\Share::SHARE_TYPE_USER),
+				'share_with' => $qb->expr()->literal('sharedWith'),
+				'uid_owner' => $qb->expr()->literal('shareOwner'),
+				'uid_initiator' => $qb->expr()->literal('shareOwner'),
+				'item_type'   => $qb->expr()->literal('file'),
+				'file_source' => $qb->expr()->literal(42),
+				'file_target' => $qb->expr()->literal('myTarget'),
+				'permissions' => $qb->expr()->literal(13),
+			]);
+		$this->assertEquals(1, $qb->execute());
+		$id1 = $qb->getLastInsertId();
+
+		$qb = $this->dbConn->getQueryBuilder();
+		$qb->insert('share')
+			->values([
+				'share_type' => $qb->expr()->literal(\OCP\Share::SHARE_TYPE_USER),
+				'share_with' => $qb->expr()->literal('sharedWith'),
+				'uid_owner' => $qb->expr()->literal('shareOwner'),
+				'uid_initiator' => $qb->expr()->literal('sharedBy'),
+				'item_type'   => $qb->expr()->literal('file'),
+				'file_source' => $qb->expr()->literal(42),
+				'file_target' => $qb->expr()->literal('userTarget'),
+				'permissions' => $qb->expr()->literal(0),
+			]);
+		$this->assertEquals(1, $qb->execute());
+		$id2 = $qb->getLastInsertId();
+
+		$user = $this->getMock('\OCP\IUser');
+		$user->method('getUID')->willReturn('sharedWith');
+		$owner = $this->getMock('\OCP\IUser');
+		$owner->method('getUID')->willReturn('shareOwner');
+		$initiator = $this->getMock('\OCP\IUser');
+		$initiator->method('getUID')->willReturn('sharedBy');
+
+		$this->userManager->method('get')->willReturnMap([
+			['sharedWith', $user],
+			['shareOwner', $owner],
+			['sharedBy', $initiator],
+		]);
+
+		$file = $this->getMock('\OCP\Files\File');
+		$file->method('getId')->willReturn(42);
+		$this->rootFolder->method('getUserFolder')->with('shareOwner')->will($this->returnSelf());
+		$this->rootFolder->method('getById')->with(42)->willReturn([$file]);
+
+		$shares = $this->provider->getSharesBy($owner, \OCP\Share::SHARE_TYPE_USER, null, true, -1, 0);
+		$this->assertCount(2, $shares);
+
+		$share = $shares[0];
+		$this->assertEquals($id1, $share->getId());
+		$this->assertSame($user, $share->getSharedWith());
+		$this->assertSame($owner, $share->getShareOwner());
+		$this->assertSame($owner, $share->getSharedBy());
+		$this->assertEquals(\OCP\Share::SHARE_TYPE_USER, $share->getShareType());
+		$this->assertEquals(13, $share->getPermissions());
+		$this->assertEquals('myTarget', $share->getTarget());
+
+		$share = $shares[1];
+		$this->assertEquals($id2, $share->getId());
+		$this->assertSame($user, $share->getSharedWith());
+		$this->assertSame($owner, $share->getShareOwner());
+		$this->assertSame($initiator, $share->getSharedBy());
+		$this->assertEquals(\OCP\Share::SHARE_TYPE_USER, $share->getShareType());
+		$this->assertEquals(0, $share->getPermissions());
+		$this->assertEquals('userTarget', $share->getTarget());
+	}
 }