Repair Step

Signed-off-by: John Molakvoæ (skjnldsv) <skjnldsv@protonmail.com>

diff --git a/core/Migrations/Version15000Date20180927120000.php b/core/Migrations/Version15000Date20180927120000.php
index d5c4b3364fc65d79fb23a28937ab4cae54a80d97..5636811baa6fbd5ae5a505499761ffae47178e40 100644 (file)
--- a/core/Migrations/Version15000Date20180927120000.php
+++ b/core/Migrations/Version15000Date20180927120000.php
@@ -38,9 +38,9 @@ class Version15000Date20180927120000 extends SimpleMigrationStep {
 
                $table = $schema->getTable('cards');
                $table->addColumn('uid', Type::STRING, [
-                       'notnull' => true,
-                       'length' => 255]
-               );
+                       'notnull' => false,
+                       'length' => 255
+               ]);
 
                return $schema;
        }

diff --git a/lib/private/Repair/NC15/SetVcardDatabaseUID.php b/lib/private/Repair/NC15/SetVcardDatabaseUID.php
new file mode 100644 (file)
index 0000000..2fe50c7
--- /dev/null
+++ b/lib/private/Repair/NC15/SetVcardDatabaseUID.php
@@ -0,0 +1,127 @@
+<?php
+/**
+ * @copyright Copyright (c) 2018 John Molakvoæ <skjnldsv@protonmail.com>
+ *
+ * @author John Molakvoæ <skjnldsv@protonmail.com>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * 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
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace OC\Repair\NC13;
+
+
+use OCP\DB\QueryBuilder\IQueryBuilder;
+use OCP\IConfig;
+use OCP\IDBConnection;
+use OCP\Migration\IOutput;
+use OCP\Migration\IRepairStep;
+
+class SetVcardDatabaseUID implements IRepairStep {
+       const MAX_ROWS = 1000;
+
+       /** @var IDBConnection */
+       private $connection;
+       private $updateQuery;
+
+       public function __construct(IDBConnection $connection) {
+               $this->connection = $connection;
+       }
+
+
+       public function getName() {
+               return 'Extract the vcard uid and store it in the db';
+       }
+
+       /**
+        * @return \Generator
+        * @suppress SqlInjectionChecker
+        */
+       private function getInvalidEntries() {
+               $builder = $this->connection->getQueryBuilder();
+
+               $builder->select('id', 'carddata')
+                       ->from('cards')
+                       ->where($builder->expr()->isNull('uid'))
+                       ->setMaxResults(self::MAX_ROWS);
+
+               do {
+                       $result = $builder->execute();
+                       $rows = $result->fetchAll();
+                       foreach ($rows as $row) {
+                               yield $row;
+                       }
+                       $result->closeCursor();
+               } while (count($rows) > 0);
+       }
+
+       private function getUid($carddata) {
+               preg_match('/^UID:(.*)$/m', $carddata, $matches);
+               if (count($matches > 1)) {
+                       return $matches[1][0];
+               }
+               return false;
+       }
+
+       /**
+        * @param int $id
+        * @param string $uid
+        */
+       private function update($id, $uid) {
+               if (!$this->updateQuery) {
+                       $builder = $this->connection->getQueryBuilder();
+
+                       $this->updateQuery = $builder->update('cards')
+                               ->set('uid', $builder->createParameter('uid'))
+                               ->where($builder->expr()->eq('id', $builder->createParameter('id')));
+               }
+
+               $this->updateQuery->setParameter('id', $id);
+               $this->updateQuery->setParameter('uid', $uid);
+
+               $this->updateQuery->execute();
+       }
+
+       private function repair() {
+               $this->connection->beginTransaction();
+               $entries = $this->getInvalidEntries();
+               $count = 0;
+               foreach ($entries as $entry) {
+                       $count++;
+                       $uid = $this->getUid($entry['id']);
+                       if ($uid !== false) {
+                               $this->update($entry['id'], $uid);
+                       }
+               }
+               $this->connection->commit();
+               return $count;
+       }
+
+       private function shouldRun() {
+               $versionFromBeforeUpdate = $this->config->getSystemValue('version', '0.0.0');
+
+               // was added to 15.0.0.0
+               return version_compare($versionFromBeforeUpdate, '15.0.0.0', '<=');
+       }
+
+       public function run(IOutput $output) {
+               if ($this->shouldRun()) {
+                       $count = $this->repair();
+
+                       $output->info('Fixed ' . $count . ' vcards');
+               }
+       }
+}