Merge pull request #10104 from owncloud/s3-overwrite

Fix S3 copy and rename overwriting target directory

apps/files_external/lib/amazons3.php

 			sleep($this->timeout);
 		}
 	}
+
 	private function cleanKey($path) {
 		if ($path === '.') {
 			return '/';
 		$this->bucket = $params['bucket'];
 		$scheme = ($params['use_ssl'] === 'false') ? 'http' : 'https';
 		$this->test = isset($params['test']);
-		$this->timeout = ( ! isset($params['timeout'])) ? 15 : $params['timeout'];
-		$params['region'] = ( ! isset($params['region']) || $params['region'] === '' ) ? 'eu-west-1' : $params['region'];
-		$params['hostname'] = ( !isset($params['hostname']) || $params['hostname'] === '' ) ? 's3.amazonaws.com' : $params['hostname'];
+		$this->timeout = (!isset($params['timeout'])) ? 15 : $params['timeout'];
+		$params['region'] = (!isset($params['region']) || $params['region'] === '') ? 'eu-west-1' : $params['region'];
+		$params['hostname'] = (!isset($params['hostname']) || $params['hostname'] === '') ? 's3.amazonaws.com' : $params['hostname'];
 		if (!isset($params['port']) || $params['port'] === '') {
 			$params['port'] = ($params['use_ssl'] === 'false') ? 80 : 443;
 		}
-		$base_url = $scheme.'://'.$params['hostname'].':'.$params['port'].'/';
+		$base_url = $scheme . '://' . $params['hostname'] . ':' . $params['port'] . '/';
 
 		$this->connection = S3Client::factory(array(
 			'key' => $params['key'],
 					'waiter.interval' => 1,
 					'waiter.max_attempts' => 15
 				));
-			$this->testTimeout();
+				$this->testTimeout();
 			} catch (S3Exception $e) {
 				\OCP\Util::writeLog('files_external', $e->getMessage(), \OCP\Util::ERROR);
 				throw new \Exception("Creation of bucket failed.");
 		if (!$this->file_exists('.')) {
 			$result = $this->connection->putObject(array(
 				'Bucket' => $this->bucket,
-				'Key'    => $this->cleanKey('.'),
-				'Body'   => '',
+				'Key' => $this->cleanKey('.'),
+				'Body' => '',
 				'ContentType' => 'httpd/unix-directory',
 				'ContentLength' => 0
 			));
 		}
 
 		try {
-			$result = $this->connection->putObject(array(
+			$this->connection->putObject(array(
 				'Bucket' => $this->bucket,
-				'Key'    => $path . '/',
-				'Body'   => '',
+				'Key' => $path . '/',
+				'Body' => '',
 				'ContentType' => 'httpd/unix-directory',
 				'ContentLength' => 0
 			));
 	public function rmdir($path) {
 		$path = $this->normalizePath($path);
 
+		if ($path === '.') {
+			return $this->clearBucket();
+		}
+
 		if (!$this->file_exists($path)) {
 			return false;
 		}
 		));
 
 		try {
-			$result = $this->connection->deleteObjects(array(
+			$this->connection->deleteObjects(array(
 				'Bucket' => $this->bucket,
 				'Objects' => $objects['Contents']
 			));
 		return true;
 	}
 
+	protected function clearBucket() {
+		try {
+			$this->connection->clearBucket($this->bucket);
+			// clearBucket() is not working with Ceph, so if it fails we try the slower approach
+		} catch (\Exception $e) {
+			try {
+				$iterator = $this->connection->getIterator('ListObjects', array(
+					'Bucket' => $this->bucket
+				));
+
+				foreach ($iterator as $object) {
+					$this->connection->deleteObject(array(
+						'Bucket' => $this->bucket,
+						'Key' => $object['Key']
+					));
+				}
+			} catch (S3Exception $e) {
+				return false;
+			}
+		}
+	}
+
 	public function opendir($path) {
 		$path = $this->normalizePath($path);
 
 			$stat['atime'] = time();
 
 			return $stat;
-		} catch(S3Exception $e) {
+		} catch (S3Exception $e) {
 			\OCP\Util::writeLog('files_external', $e->getMessage(), \OCP\Util::ERROR);
 			return false;
 		}
 	public function unlink($path) {
 		$path = $this->normalizePath($path);
 
-		if ( $this->is_dir($path) ) {
+		if ($this->is_dir($path)) {
 			return $this->rmdir($path);
 		}
 
 				return false;
 			}
 		} else {
-			if ($this->file_exists($path2)) {
-				return false;
+			if ($this->is_dir($path2)) {
+				$this->rmdir($path2);
+			} else if ($this->file_exists($path2)) {
+				$this->unlink($path2);
 			}
 
 			try {
 			}
 
 			$dh = $this->opendir($path1);
-			if(is_resource($dh)) {
+			if (is_resource($dh)) {
 				while (($file = readdir($dh)) !== false) {
 					if ($file === '.' || $file === '..') {
 						continue;
 		$path2 = $this->normalizePath($path2);
 
 		if ($this->is_file($path1)) {
+
 			if ($this->copy($path1, $path2) === false) {
 				return false;
 			}
 				return false;
 			}
 		} else {
-			if ($this->file_exists($path2)) {
-				return false;
-			}
 
 			if ($this->copy($path1, $path2) === false) {
 				return false;
 		}
 
 		try {
-			$result= $this->connection->putObject(array(
+			$result = $this->connection->putObject(array(
 				'Bucket' => $this->bucket,
 				'Key' => $this->cleanKey(self::$tmpFiles[$tmpFile]),
 				'SourceFile' => $tmpFile,

apps/files_external/tests/amazons3.php

 
 	public function tearDown() {
 		if ($this->instance) {
-			$connection = $this->instance->getConnection();
-
-			try {
-				// NOTE(berendt): clearBucket() is not working with Ceph
-				$iterator = $connection->getIterator('ListObjects', array(
-					'Bucket' => $this->config['amazons3']['bucket']
-				));
-
-				foreach ($iterator as $object) {
-					$connection->deleteObject(array(
-						'Bucket' => $this->config['amazons3']['bucket'],
-						'Key' => $object['Key']
-					));
-				}
-			} catch (S3Exception $e) {
-			}
-
-			$connection->deleteBucket(array(
-				'Bucket' => $this->config['amazons3']['bucket']
-			));
-
-			//wait some seconds for completing the replication
-			sleep(30);
+			$this->instance->rmdir('');
 		}
 	}
+
+	public function testStat() {
+		$this->markTestSkipped('S3 doesn\'t update the parents folder mtime');
+	}
 }