From f7097faf82604a6d8b89eed9d1d5ea3d0843e4f8 Mon Sep 17 00:00:00 2001
From: =?utf8?q?Thomas=20M=C3=BCller?= <thomas.mueller@tmit.eu>
Date: Thu, 17 Oct 2013 20:16:27 +0200
Subject: [PATCH] Special treatment for Oracle

---
 lib/private/db/mdb2schemamanager.php | 13 +++++++------
 lib/private/db/migrator.php          | 29 +++++++++++++++++++++++-----
 lib/private/db/oraclemigrator.php    | 14 ++++++++++++++
 lib/private/db/sqlitemigrator.php    |  6 ++++--
 4 files changed, 49 insertions(+), 13 deletions(-)

diff --git a/lib/private/db/mdb2schemamanager.php b/lib/private/db/mdb2schemamanager.php
index a07c421b9b8..ea1e512002d 100644
--- a/lib/private/db/mdb2schemamanager.php
+++ b/lib/private/db/mdb2schemamanager.php
@@ -58,20 +58,21 @@ class MDB2SchemaManager {
 	 * @return \OC\DB\Migrator
 	 */
 	public function getMigrator() {
+		$random = \OC::$server->getSecureRandom()->getMediumStrengthGenerator();
 		$platform = $this->conn->getDatabasePlatform();
 		if ($platform instanceof SqlitePlatform) {
 			$config = \OC::$server->getConfig();
-			return new SQLiteMigrator($this->conn, $config);
+			return new SQLiteMigrator($this->conn, $random, $config);
 		} else if ($platform instanceof OraclePlatform) {
-			return new OracleMigrator($this->conn);
+			return new OracleMigrator($this->conn, $random);
 		} else if ($platform instanceof MySqlPlatform) {
-			return new MySQLMigrator($this->conn);
+			return new MySQLMigrator($this->conn, $random);
 		} else if ($platform instanceof SQLServerPlatform) {
-			return new MsSqlMigrator($this->conn);
+			return new MsSqlMigrator($this->conn, $random);
 		} else if ($platform instanceof PostgreSqlPlatform) {
-			return new Migrator($this->conn);
+			return new Migrator($this->conn, $random);
 		} else {
-			return new NoCheckMigrator($this->conn);
+			return new NoCheckMigrator($this->conn, $random);
 		}
 	}
 
diff --git a/lib/private/db/migrator.php b/lib/private/db/migrator.php
index d05f8455551..31c648a9b65 100644
--- a/lib/private/db/migrator.php
+++ b/lib/private/db/migrator.php
@@ -14,18 +14,27 @@ use \Doctrine\DBAL\Schema\Table;
 use \Doctrine\DBAL\Schema\Schema;
 use \Doctrine\DBAL\Schema\SchemaConfig;
 use \Doctrine\DBAL\Schema\Comparator;
+use OCP\Security\ISecureRandom;
 
 class Migrator {
+
 	/**
 	 * @var \Doctrine\DBAL\Connection $connection
 	 */
 	protected $connection;
 
+	/**
+	 * @var ISecureRandom
+	 */
+	private $random;
+
 	/**
 	 * @param \Doctrine\DBAL\Connection $connection
+	 * @param ISecureRandom $random
 	 */
-	public function __construct(\Doctrine\DBAL\Connection $connection) {
+	public function __construct(\Doctrine\DBAL\Connection $connection, ISecureRandom $random) {
 		$this->connection = $connection;
+		$this->random = $random;
 	}
 
 	/**
@@ -45,8 +54,7 @@ class Migrator {
 		$script = '';
 		$sqls = $schemaDiff->toSql($this->connection->getDatabasePlatform());
 		foreach ($sqls as $sql) {
-			$script .= $sql . ';';
-			$script .= PHP_EOL;
+			$script .= $this->convertStatementToScript($sql);
 		}
 
 		return $script;
@@ -84,7 +92,7 @@ class Migrator {
 	 * @return string
 	 */
 	protected function generateTemporaryTableName($name) {
-		return 'oc_' . $name . '_' . \OCP\Util::generateRandomBytes(13);
+		return 'oc_' . $name . '_' . $this->random->generate(13, ISecureRandom::CHAR_LOWER . ISecureRandom::CHAR_DIGITS);
 	}
 
 	/**
@@ -135,7 +143,7 @@ class Migrator {
 				$indexName = $index->getName();
 			} else {
 				// avoid conflicts in index names
-				$indexName = 'oc_' . \OCP\Util::generateRandomBytes(13);
+				$indexName = 'oc_' . $this->random->generate(13, ISecureRandom::CHAR_LOWER . ISecureRandom::CHAR_DIGITS);
 			}
 			$newIndexes[] = new Index($indexName, $index->getColumns(), $index->isUnique(), $index->isPrimary());
 		}
@@ -201,4 +209,15 @@ class Migrator {
 	protected function dropTable($name) {
 		$this->connection->exec('DROP TABLE ' . $this->connection->quoteIdentifier($name));
 	}
+
+	/**
+	 * @param $statement
+	 * @return string
+	 */
+	protected function convertStatementToScript($statement) {
+		$script = $statement . ';';
+		$script .= PHP_EOL;
+		$script .= PHP_EOL;
+		return $script;
+	}
 }
diff --git a/lib/private/db/oraclemigrator.php b/lib/private/db/oraclemigrator.php
index 1a8df2def9c..b80295cbd60 100644
--- a/lib/private/db/oraclemigrator.php
+++ b/lib/private/db/oraclemigrator.php
@@ -37,4 +37,18 @@ class OracleMigrator extends NoCheckMigrator {
 	protected function generateTemporaryTableName($name) {
 		return 'oc_' . uniqid();
 	}
+
+	/**
+	 * @param $statement
+	 * @return string
+	 */
+	protected function convertStatementToScript($statement) {
+		if (substr($statement, -1) === ';') {
+			return $statement . PHP_EOL . '/' . PHP_EOL;
+		}
+		$script = $statement . ';';
+		$script .= PHP_EOL;
+		$script .= PHP_EOL;
+		return $script;
+	}
 }
diff --git a/lib/private/db/sqlitemigrator.php b/lib/private/db/sqlitemigrator.php
index 18e9d19d5ee..848e4986571 100644
--- a/lib/private/db/sqlitemigrator.php
+++ b/lib/private/db/sqlitemigrator.php
@@ -10,6 +10,7 @@ namespace OC\DB;
 
 use Doctrine\DBAL\DBALException;
 use Doctrine\DBAL\Schema\Schema;
+use OCP\Security\ISecureRandom;
 
 class SQLiteMigrator extends Migrator {
 
@@ -20,10 +21,11 @@ class SQLiteMigrator extends Migrator {
 
 	/**
 	 * @param \Doctrine\DBAL\Connection $connection
+	 * @param ISecureRandom $random
 	 * @param \OCP\IConfig $config
 	 */
-	public function __construct(\Doctrine\DBAL\Connection $connection, \OCP\IConfig $config) {
-		parent::__construct($connection);
+	public function __construct(\Doctrine\DBAL\Connection $connection, ISecureRandom $random, \OCP\IConfig $config) {
+		parent::__construct($connection, $random);
 		$this->config = $config;
 	}
 
-- 
2.39.5