1 files changed, 0 insertions, 257 deletions
diff --git a/lib/private/db/migrator.php b/lib/private/db/migrator.php
deleted file mode 100644
index 7ca3f981358..00000000000
--- a/lib/private/db/migrator.php
+++ /dev/null
@@ -1,257 +0,0 @@
-<?php
-/**
- * @author martin-rueegg <martin.rueegg@metaworx.ch>
- * @author Morris Jobke <hey@morrisjobke.de>
- * @author Robin Appelman <icewind@owncloud.com>
- * @author tbelau666 <thomas.belau@gmx.de>
- * @author Thomas Müller <thomas.mueller@tmit.eu>
- * @author Victor Dubiniuk <dubiniuk@owncloud.com>
- * @author Vincent Petry <pvince81@owncloud.com>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *
- */
-
-namespace OC\DB;
-
-use \Doctrine\DBAL\DBALException;
-use \Doctrine\DBAL\Schema\Index;
-use \Doctrine\DBAL\Schema\Table;
-use \Doctrine\DBAL\Schema\Schema;
-use \Doctrine\DBAL\Schema\SchemaConfig;
-use \Doctrine\DBAL\Schema\Comparator;
-use OCP\IConfig;
-use OCP\Security\ISecureRandom;
-
-class Migrator {
-
-	/**
-	 * @var \Doctrine\DBAL\Connection $connection
-	 */
-	protected $connection;
-
-	/**
-	 * @var ISecureRandom
-	 */
-	private $random;
-
-	/** @var IConfig */
-	protected $config;
-
-	/**
-	 * @param Connection $connection
-	 * @param ISecureRandom $random
-	 * @param IConfig $config
-	 */
-	public function __construct(\Doctrine\DBAL\Connection $connection, ISecureRandom $random, IConfig $config) {
-		$this->connection = $connection;
-		$this->random = $random;
-		$this->config = $config;
-	}
-
-	/**
-	 * @param \Doctrine\DBAL\Schema\Schema $targetSchema
-	 */
-	public function migrate(Schema $targetSchema) {
-		$this->applySchema($targetSchema);
-	}
-
-	/**
-	 * @param \Doctrine\DBAL\Schema\Schema $targetSchema
-	 * @return string
-	 */
-	public function generateChangeScript(Schema $targetSchema) {
-		$schemaDiff = $this->getDiff($targetSchema, $this->connection);
-
-		$script = '';
-		$sqls = $schemaDiff->toSql($this->connection->getDatabasePlatform());
-		foreach ($sqls as $sql) {
-			$script .= $this->convertStatementToScript($sql);
-		}
-
-		return $script;
-	}
-
-	/**
-	 * @param Schema $targetSchema
-	 * @throws \OC\DB\MigrationException
-	 */
-	public function checkMigrate(Schema $targetSchema) {
-		/**
-		 * @var \Doctrine\DBAL\Schema\Table[] $tables
-		 */
-		$tables = $targetSchema->getTables();
-		$filterExpression = $this->getFilterExpression();
-		$this->connection->getConfiguration()->
-			setFilterSchemaAssetsExpression($filterExpression);
-		$existingTables = $this->connection->getSchemaManager()->listTableNames();
-
-		foreach ($tables as $table) {
-			if (strpos($table->getName(), '.')) {
-				list(, $tableName) = explode('.', $table->getName());
-			} else {
-				$tableName = $table->getName();
-			}
-			// don't need to check for new tables
-			if (array_search($tableName, $existingTables) !== false) {
-				$this->checkTableMigrate($table);
-			}
-		}
-	}
-
-	/**
-	 * Create a unique name for the temporary table
-	 *
-	 * @param string $name
-	 * @return string
-	 */
-	protected function generateTemporaryTableName($name) {
-		return $this->config->getSystemValue('dbtableprefix', 'oc_') . $name . '_' . $this->random->generate(13, ISecureRandom::CHAR_LOWER . ISecureRandom::CHAR_DIGITS);
-	}
-
-	/**
-	 * Check the migration of a table on a copy so we can detect errors before messing with the real table
-	 *
-	 * @param \Doctrine\DBAL\Schema\Table $table
-	 * @throws \OC\DB\MigrationException
-	 */
-	protected function checkTableMigrate(Table $table) {
-		$name = $table->getName();
-		$tmpName = $this->generateTemporaryTableName($name);
-
-		$this->copyTable($name, $tmpName);
-
-		//create the migration schema for the temporary table
-		$tmpTable = $this->renameTableSchema($table, $tmpName);
-		$schemaConfig = new SchemaConfig();
-		$schemaConfig->setName($this->connection->getDatabase());
-		$schema = new Schema(array($tmpTable), array(), $schemaConfig);
-
-		try {
-			$this->applySchema($schema);
-			$this->dropTable($tmpName);
-		} catch (DBALException $e) {
-			// pgsql needs to commit it's failed transaction before doing anything else
-			if ($this->connection->isTransactionActive()) {
-				$this->connection->commit();
-			}
-			$this->dropTable($tmpName);
-			throw new MigrationException($table->getName(), $e->getMessage());
-		}
-	}
-
-	/**
-	 * @param \Doctrine\DBAL\Schema\Table $table
-	 * @param string $newName
-	 * @return \Doctrine\DBAL\Schema\Table
-	 */
-	protected function renameTableSchema(Table $table, $newName) {
-		/**
-		 * @var \Doctrine\DBAL\Schema\Index[] $indexes
-		 */
-		$indexes = $table->getIndexes();
-		$newIndexes = array();
-		foreach ($indexes as $index) {
-			if ($index->isPrimary()) {
-				// do not rename primary key
-				$indexName = $index->getName();
-			} else {
-				// avoid conflicts in index names
-				$indexName = $this->config->getSystemValue('dbtableprefix', 'oc_') . $this->random->generate(13, ISecureRandom::CHAR_LOWER);
-			}
-			$newIndexes[] = new Index($indexName, $index->getColumns(), $index->isUnique(), $index->isPrimary());
-		}
-
-		// foreign keys are not supported so we just set it to an empty array
-		return new Table($newName, $table->getColumns(), $newIndexes, array(), 0, $table->getOptions());
-	}
-
-	protected function getDiff(Schema $targetSchema, \Doctrine\DBAL\Connection $connection) {
-		$filterExpression = $this->getFilterExpression();
-		$this->connection->getConfiguration()->
-		setFilterSchemaAssetsExpression($filterExpression);
-		$sourceSchema = $connection->getSchemaManager()->createSchema();
-
-		// remove tables we don't know about
-		/** @var $table \Doctrine\DBAL\Schema\Table */
-		foreach ($sourceSchema->getTables() as $table) {
-			if (!$targetSchema->hasTable($table->getName())) {
-				$sourceSchema->dropTable($table->getName());
-			}
-		}
-		// remove sequences we don't know about
-		foreach ($sourceSchema->getSequences() as $table) {
-			if (!$targetSchema->hasSequence($table->getName())) {
-				$sourceSchema->dropSequence($table->getName());
-			}
-		}
-
-		$comparator = new Comparator();
-		return $comparator->compare($sourceSchema, $targetSchema);
-	}
-
-	/**
-	 * @param \Doctrine\DBAL\Schema\Schema $targetSchema
-	 * @param \Doctrine\DBAL\Connection $connection
-	 */
-	protected function applySchema(Schema $targetSchema, \Doctrine\DBAL\Connection $connection = null) {
-		if (is_null($connection)) {
-			$connection = $this->connection;
-		}
-
-		$schemaDiff = $this->getDiff($targetSchema, $connection);
-
-		$connection->beginTransaction();
-		foreach ($schemaDiff->toSql($connection->getDatabasePlatform()) as $sql) {
-			$connection->query($sql);
-		}
-		$connection->commit();
-	}
-
-	/**
-	 * @param string $sourceName
-	 * @param string $targetName
-	 */
-	protected function copyTable($sourceName, $targetName) {
-		$quotedSource = $this->connection->quoteIdentifier($sourceName);
-		$quotedTarget = $this->connection->quoteIdentifier($targetName);
-
-		$this->connection->exec('CREATE TABLE ' . $quotedTarget . ' (LIKE ' . $quotedSource . ')');
-		$this->connection->exec('INSERT INTO ' . $quotedTarget . ' SELECT * FROM ' . $quotedSource);
-	}
-
-	/**
-	 * @param string $name
-	 */
-	protected function dropTable($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 $script;
-	}
-
-	protected function getFilterExpression() {
-		return '/^' . preg_quote($this->config->getSystemValue('dbtableprefix', 'oc_')) . '/';
-	}
-}