From 73cacb8896ac067e4686ef8d4471ba497248a729 Mon Sep 17 00:00:00 2001
From: Arthur Schiwon <blizzz@arthur-schiwon.de>
Date: Tue, 29 May 2018 01:10:03 +0200
Subject: [PATCH] check user state when fetching to avoid dealing with offline
 objects

fixes #9502

Signed-off-by: Arthur Schiwon <blizzz@arthur-schiwon.de>
---
 apps/user_ldap/lib/Access.php       | 25 +++++++++++++-----
 apps/user_ldap/tests/AccessTest.php | 39 +++++++++++++++++++++++++++--
 2 files changed, 56 insertions(+), 8 deletions(-)

diff --git a/apps/user_ldap/lib/Access.php b/apps/user_ldap/lib/Access.php
index 3557f45a32fe6..91089e779a034 100644
--- a/apps/user_ldap/lib/Access.php
+++ b/apps/user_ldap/lib/Access.php
@@ -54,7 +54,6 @@
 use OCP\IConfig;
 use OCP\ILogger;
 use OCP\IUserManager;
-use OCP\Util;
 
 /**
  * Class Access
@@ -664,6 +663,7 @@ public function nextcloudGroupNames($ldapGroups) {
 	 * @param array $ldapObjects as returned by fetchList()
 	 * @param bool $isUsers
 	 * @return array
+	 * @throws \Exception
 	 */
 	private function ldap2NextcloudNames($ldapObjects, $isUsers) {
 		if($isUsers) {
@@ -672,7 +672,7 @@ private function ldap2NextcloudNames($ldapObjects, $isUsers) {
 		} else {
 			$nameAttribute = $this->connection->ldapGroupDisplayName;
 		}
-		$nextcloudNames = array();
+		$nextcloudNames = [];
 
 		foreach($ldapObjects as $ldapObject) {
 			$nameByLDAP = null;
@@ -688,6 +688,7 @@ private function ldap2NextcloudNames($ldapObjects, $isUsers) {
 			if($ncName) {
 				$nextcloudNames[] = $ncName;
 				if($isUsers) {
+					$this->updateUserState($ncName);
 					//cache the user names so it does not need to be retrieved
 					//again later (e.g. sharing dialogue).
 					if(is_null($nameByLDAP)) {
@@ -702,6 +703,19 @@ private function ldap2NextcloudNames($ldapObjects, $isUsers) {
 		return $nextcloudNames;
 	}
 
+	/**
+	 * removes the deleted-flag of a user if it was set
+	 *
+	 * @param string $ncname
+	 * @throws \Exception
+	 */
+	public function updateUserState($ncname) {
+		$user = $this->userManager->get($ncname);
+		if($user instanceof OfflineUser) {
+			$user->unmark();
+		}
+	}
+
 	/**
 	 * caches the user display name
 	 * @param string $ocName the internal Nextcloud username
@@ -873,7 +887,9 @@ public function fetchListOfUsers($filter, $attr, $limit = null, $offset = null,
 	 * provided with an array of LDAP user records the method will fetch the
 	 * user object and requests it to process the freshly fetched attributes and
 	 * and their values
+	 *
 	 * @param array $ldapRecords
+	 * @throws \Exception
 	 */
 	public function batchApplyUserAttributes(array $ldapRecords){
 		$displayNameAttribute = strtolower($this->connection->ldapUserDisplayName);
@@ -886,11 +902,8 @@ public function batchApplyUserAttributes(array $ldapRecords){
 			if($ocName === false) {
 				continue;
 			}
+			$this->updateUserState($ocName);
 			$user = $this->userManager->get($ocName);
-			if($user instanceof OfflineUser) {
-				$user->unmark();
-				$user = $this->userManager->get($ocName);
-			}
 			if ($user !== null) {
 				$user->processAttributes($userRecord);
 			} else {
diff --git a/apps/user_ldap/tests/AccessTest.php b/apps/user_ldap/tests/AccessTest.php
index 43a34959c548d..a51a396cfff47 100644
--- a/apps/user_ldap/tests/AccessTest.php
+++ b/apps/user_ldap/tests/AccessTest.php
@@ -43,6 +43,7 @@
 use OCA\User_LDAP\LogWrapper;
 use OCA\User_LDAP\Mapping\UserMapping;
 use OCA\User_LDAP\User\Manager;
+use OCA\User_LDAP\User\OfflineUser;
 use OCA\User_LDAP\User\User;
 use OCP\IAvatarManager;
 use OCP\IConfig;
@@ -316,7 +317,7 @@ public function testBatchApplyUserAttributes() {
 		$userMock->expects($this->exactly(count($data)))
 			->method('processAttributes');
 
-		$this->userManager->expects($this->exactly(count($data)))
+		$this->userManager->expects($this->exactly(count($data) * 2))
 			->method('get')
 			->will($this->returnValue($userMock));
 
@@ -398,7 +399,7 @@ public function testBatchApplyUserAttributesDontSkip() {
 		$userMock->expects($this->exactly(count($data)))
 			->method('processAttributes');
 
-		$this->userManager->expects($this->exactly(count($data)))
+		$this->userManager->expects($this->exactly(count($data) * 2))
 			->method('get')
 			->will($this->returnValue($userMock));
 
@@ -666,6 +667,40 @@ public function testSanitizeUsername($name, $expected) {
 		$this->assertSame($expected, $sanitizedName);
 	}
 
+	public function testUserStateUpdate() {
+		$this->connection->expects($this->any())
+			->method('__get')
+			->willReturnMap([
+				[ 'ldapUserDisplayName', 'displayName' ],
+				[ 'ldapUserDisplayName2', null],
+			]);
+
+		$offlineUserMock = $this->createMock(OfflineUser::class);
+		$offlineUserMock->expects($this->once())
+			->method('unmark');
+
+		$regularUserMock = $this->createMock(User::class);
+
+		$this->userManager->expects($this->atLeastOnce())
+			->method('get')
+			->with('detta')
+			->willReturnOnConsecutiveCalls($offlineUserMock, $regularUserMock);
+
+		/** @var UserMapping|\PHPUnit_Framework_MockObject_MockObject $mapperMock */
+		$mapperMock = $this->createMock(UserMapping::class);
+		$mapperMock->expects($this->any())
+			->method('getNameByDN')
+			->with('uid=detta,ou=users,dc=hex,dc=ample')
+			->willReturn('detta');
+		$this->access->setUserMapper($mapperMock);
 
+		$records = [
+			[
+				'dn' => ['uid=detta,ou=users,dc=hex,dc=ample'],
+				'displayName' => ['Detta Detkova'],
+			]
+		];
+		$this->access->nextcloudUserNames($records);
+	}
 
 }