log to $datadir/audit.log by default and add rotation

Signed-off-by: Arthur Schiwon <blizzz@arthur-schiwon.de>

1 files changed, 71 insertions, 0 deletions

diff --git a/lib/public/Log/RotationTrait.php b/lib/public/Log/RotationTrait.php
new file mode 100644
index 00000000000..df42bfeff1f
--- /dev/null
+++ b/lib/public/Log/RotationTrait.php
@@ -0,0 +1,71 @@
+<?php
+/**
+ * @copyright Copyright (c) 2018 Arthur Schiwon <blizzz@arthur-schiwon.de>
+ *
+ * @author Arthur Schiwon <blizzz@arthur-schiwon.de>
+ *
+ * @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 OCP\Log;
+
+/**
+ * Trait RotationTrait
+ *
+ * @package OCP\Log
+ *
+ * @since 14.0.0
+ */
+trait RotationTrait {
+
+	/**
+	 * @var string
+	 * @since 14.0.0
+	 */
+	protected $filePath;
+
+	/**
+	 * @var int
+	 * @since 14.0.0
+	 */
+	protected $maxSize;
+
+	/**
+	 * @return string the resulting new filepath
+	 * @since 14.0.0
+	 */
+	protected function rotate():string {
+		$rotatedFile = $this->filePath.'.1';
+		rename($this->filePath, $rotatedFile);
+		return $rotatedFile;
+	}
+
+	/**
+	 * @return bool
+	 * @since 14.0.0
+	 */
+	protected function shouldRotateBySize():bool {
+		if ((int)$this->maxSize > 0) {
+			$filesize = @filesize($this->filePath);
+			if ($filesize >= (int)$this->maxSize) {
+				return true;
+			}
+		}
+		return false;
+	}
+
+}