Remove obsolete RepairLegacyStorages repair step

Signed-off-by: Lukas Reschke <lukas@statuscode.ch>

1 files changed, 0 insertions, 257 deletions

diff --git a/lib/private/Repair/RepairLegacyStorages.php b/lib/private/Repair/RepairLegacyStorages.php
deleted file mode 100644
index 228bdb67fe8..00000000000
--- a/lib/private/Repair/RepairLegacyStorages.php
+++ /dev/null
@@ -1,257 +0,0 @@
-<?php
-/**
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- *
- * @author Aaron Wood <aaronjwood@gmail.com>
- * @author Joas Schilling <coding@schilljs.com>
- * @author Morris Jobke <hey@morrisjobke.de>
- * @author Thomas Müller <thomas.mueller@tmit.eu>
- * @author Vincent Petry <pvince81@owncloud.com>
- *
- * @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\Repair;
-
-use OC\Files\Cache\Storage;
-use OC\RepairException;
-use OCP\Migration\IOutput;
-use OCP\Migration\IRepairStep;
-
-class RepairLegacyStorages implements IRepairStep{
-	/**
-	 * @var \OCP\IConfig
-	 */
-	protected $config;
-
-	/**
-	 * @var \OCP\IDBConnection
-	 */
-	protected $connection;
-
-	protected $findStorageInCacheStatement;
-	protected $renameStorageStatement;
-
-	/**
-	 * @param \OCP\IConfig $config
-	 * @param \OCP\IDBConnection $connection
-	 */
-	public function __construct($config, $connection) {
-		$this->connection = $connection;
-		$this->config = $config;
-
-		$this->findStorageInCacheStatement = $this->connection->prepare(
-			'SELECT DISTINCT `storage` FROM `*PREFIX*filecache`'
-			. ' WHERE `storage` in (?, ?)'
-		);
-		$this->renameStorageStatement = $this->connection->prepare(
-			'UPDATE `*PREFIX*storages`'
-			. ' SET `id` = ?'
-			. ' WHERE `id` = ?'
-		);
-	}
-
-	public function getName() {
-		return 'Repair legacy storages';
-	}
-
-	/**
-	 * Extracts the user id	from a legacy storage id
-	 *
-	 * @param string $storageId legacy storage id in the
-	 * format "local::/path/to/datadir/userid"
-	 * @return string user id extracted from the storage id
-	 */
-	private function extractUserId($storageId) {
-		$storageId = rtrim($storageId, '/');
-		$pos = strrpos($storageId, '/');
-		return substr($storageId, $pos + 1);
-	}
-
-	/**
-	 * Fix the given legacy storage by renaming the old id
-	 * to the new id. If the new id already exists, whichever
-	 * storage that has data in the file cache will be used.
-	 * If both have data, nothing will be done and false is
-	 * returned.
-	 *
-	 * @param string $oldId old storage id
-	 * @param int $oldNumericId old storage numeric id
-	 * @param string $userId
-	 * @return bool true if fixed, false otherwise
-	 * @throws RepairException
-	 */
-	private function fixLegacyStorage($oldId, $oldNumericId, $userId = null) {
-		// check whether the new storage already exists
-		if (is_null($userId)) {
-			$userId = $this->extractUserId($oldId);
-		}
-		$newId = 'home::' . $userId;
-
-		// check if target id already exists
-		$newNumericId = Storage::getNumericStorageId($newId);
-		if (!is_null($newNumericId)) {
-			$newNumericId = (int)$newNumericId;
-			// try and resolve the conflict
-			// check which one of "local::" or "home::" needs to be kept
-			$this->findStorageInCacheStatement->execute(array($oldNumericId, $newNumericId));
-			$row1 = $this->findStorageInCacheStatement->fetch();
-			$row2 = $this->findStorageInCacheStatement->fetch();
-			$this->findStorageInCacheStatement->closeCursor();
-			if ($row2 !== false) {
-				// two results means both storages have data, not auto-fixable
-				throw new RepairException(
-					'Could not automatically fix legacy storage '
-					. '"' . $oldId . '" => "' . $newId . '"'
-					. ' because they both have data.'
-				);
-			}
-			if ($row1 === false || (int)$row1['storage'] === $oldNumericId) {
-				// old storage has data, then delete the empty new id
-				$toDelete = $newId;
-			} else if ((int)$row1['storage'] === $newNumericId) {
-				// new storage has data, then delete the empty old id
-				$toDelete = $oldId;
-			} else {
-				// unknown case, do not continue
-				return false;
-			}
-
-			// delete storage including file cache
-			Storage::remove($toDelete);
-
-			// if we deleted the old id, the new id will be used
-			// automatically
-			if ($toDelete === $oldId) {
-				// nothing more to do
-				return true;
-			}
-		}
-
-		// rename old id to new id
-		$newId = Storage::adjustStorageId($newId);
-		$oldId = Storage::adjustStorageId($oldId);
-		$rowCount = $this->renameStorageStatement->execute(array($newId, $oldId));
-		$this->renameStorageStatement->closeCursor();
-		return ($rowCount === 1);
-	}
-
-	/**
-	 * Converts legacy home storage ids in the format
-	 * "local::/data/dir/path/userid/" to the new format "home::userid"
-	 */
-	public function run(IOutput $out) {
-		// only run once
-		if ($this->config->getAppValue('core', 'repairlegacystoragesdone') === 'yes') {
-			return;
-		}
-
-		$dataDir = $this->config->getSystemValue('datadirectory', \OC::$SERVERROOT . '/data/');
-		$dataDir = rtrim($dataDir, '/') . '/';
-		$dataDirId = 'local::' . $dataDir;
-
-		$count = 0;
-		$hasWarnings = false;
-
-		$this->connection->beginTransaction();
-
-		// note: not doing a direct UPDATE with the REPLACE function
-		// because regexp search/extract is needed and it is not guaranteed
-		// to work on all database types
-		$sql = 'SELECT `id`, `numeric_id` FROM `*PREFIX*storages`'
-			. ' WHERE `id` LIKE ?'
-			. ' ORDER BY `id`';
-		$result = $this->connection->executeQuery($sql, array($this->connection->escapeLikeParameter($dataDirId) . '%'));
-
-		while ($row = $result->fetch()) {
-			$currentId = $row['id'];
-			// one entry is the datadir itself
-			if ($currentId === $dataDirId) {
-				continue;
-			}
-
-			try {
-				if ($this->fixLegacyStorage($currentId, (int)$row['numeric_id'])) {
-					$count++;
-				}
-			}
-			catch (RepairException $e) {
-				$hasWarnings = true;
-				$out->warning('Could not repair legacy storage ' . $currentId . ' automatically.');
-			}
-		}
-
-		// check for md5 ids, not in the format "prefix::"
-		$sql = 'SELECT COUNT(*) AS "c" FROM `*PREFIX*storages`'
-			. ' WHERE `id` NOT LIKE \'%::%\'';
-		$result = $this->connection->executeQuery($sql);
-		$row = $result->fetch();
-
-		// find at least one to make sure it's worth
-		// querying the user list
-		if ((int)$row['c'] > 0) {
-			$userManager = \OC::$server->getUserManager();
-
-			// use chunks to avoid caching too many users in memory
-			$limit = 30;
-			$offset = 0;
-
-			do {
-				// query the next page of users
-				$results = $userManager->search('', $limit, $offset);
-				$storageIds = array();
-				foreach ($results as $uid => $userObject) {
-					$storageId = $dataDirId . $uid . '/';
-					if (strlen($storageId) <= 64) {
-						// skip short storage ids as they were handled in the previous section
-						continue;
-					}
-					$storageIds[$uid] = $storageId;
-				}
-
-				if (count($storageIds) > 0) {
-					// update the storages of these users
-					foreach ($storageIds as $uid => $storageId) {
-						$numericId = Storage::getNumericStorageId($storageId);
-						try {
-							if (!is_null($numericId) && $this->fixLegacyStorage($storageId, (int)$numericId)) {
-								$count++;
-							}
-						}
-						catch (RepairException $e) {
-							$hasWarnings = true;
-							$out->warning('Could not repair legacy storage ' . $storageId . ' automatically.');
-						}
-					}
-				}
-				$offset += $limit;
-			} while (count($results) >= $limit);
-		}
-
-		$out->info('Updated ' . $count . ' legacy home storage ids');
-
-		$this->connection->commit();
-
-		Storage::getGlobalCache()->clearCache();
-
-		if ($hasWarnings) {
-			$out->warning('Some legacy storages could not be repaired. Please manually fix them then re-run ./occ maintenance:repair');
-		} else {
-			// if all were done, no need to redo the repair during next upgrade
-			$this->config->setAppValue('core', 'repairlegacystoragesdone', 'yes');
-		}
-	}
-}