Merge pull request #9949 from owncloud/fixing-sqlite-migration-shared-hoster

generate copy of sqlite database file in data directory

lib/private/db/mdb2schemamanager.php

@@ -59,7 +59,8 @@ class MDB2SchemaManager {
 	public function getMigrator() {
 		$platform = $this->conn->getDatabasePlatform();
 		if ($platform instanceof SqlitePlatform) {
-			return new SQLiteMigrator($this->conn);
+			$config = \OC::$server->getConfig();
+			return new SQLiteMigrator($this->conn, $config);
 		} else if ($platform instanceof OraclePlatform) {
 			return new OracleMigrator($this->conn);
 		} else if ($platform instanceof MySqlPlatform) {

lib/private/db/sqlitemigrator.php

@@ -11,6 +11,21 @@ namespace OC\DB;
 use Doctrine\DBAL\DBALException;
 
 class SQLiteMigrator extends Migrator {
+
+	/**
+	 * @var \OCP\IConfig
+	 */
+	private $config;
+
+	/**
+	 * @param \Doctrine\DBAL\Connection $connection
+	 * @param \OCP\IConfig $config
+	 */
+	public function __construct(\Doctrine\DBAL\Connection $connection, \OCP\IConfig $config) {
+		parent::__construct($connection);
+		$this->config = $config;
+	}
+
 	/**
 	 * @param \Doctrine\DBAL\Schema\Schema $targetSchema
 	 * @throws \OC\DB\MigrationException
@@ -19,7 +34,7 @@ class SQLiteMigrator extends Migrator {
 	 */
 	public function checkMigrate(\Doctrine\DBAL\Schema\Schema $targetSchema) {
 		$dbFile = $this->connection->getDatabase();
-		$tmpFile = \OC_Helper::tmpFile('.db');
+		$tmpFile = $this->buildTempDatabase();
 		copy($dbFile, $tmpFile);
 
 		$connectionParams = array(
@@ -37,4 +52,13 @@ class SQLiteMigrator extends Migrator {
 			throw new MigrationException('', $e->getMessage());
 		}
 	}
+
+	/**
+	 * @return string
+	 */
+	private function buildTempDatabase() {
+		$dataDir = $this->config->getSystemValue("datadirectory", \OC::$SERVERROOT . '/data');
+		$tmpFile = uniqid("oc_");
+		return "$dataDir/$tmpFile.db";
+	}
 }