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+++ b/library/log4php/appenders/LoggerAppenderFile.php
@@ -0,0 +1,225 @@
+<?php
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * LoggerAppenderFile appends log events to a file.
+ *
+ * This appender uses a layout.
+ *
+ * ## Configurable parameters: ##
+ *
+ * - **file** - Path to the target file. Relative paths are resolved based on
+ * the working directory.
+ * - **append** - If set to true, the appender will append to the file,
+ * otherwise the file contents will be overwritten.
+ *
+ * @version $Revision: 1382274 $
+ * @package log4php
+ * @subpackage appenders
+ * @license http://www.apache.org/licenses/LICENSE-2.0 Apache License, Version 2.0
+ * @link http://logging.apache.org/log4php/docs/appenders/file.html Appender documentation
+ */
+class LoggerAppenderFile extends LoggerAppender {
+
+ /**
+ * If set to true, the file is locked before appending. This allows
+ * concurrent access. However, appending without locking is faster so
+ * it should be used where appropriate.
+ *
+ * TODO: make this a configurable parameter
+ *
+ * @var boolean
+ */
+ protected $locking = true;
+
+ /**
+ * If set to true, appends to file. Otherwise overwrites it.
+ * @var boolean
+ */
+ protected $append = true;
+
+ /**
+ * Path to the target file.
+ * @var string
+ */
+ protected $file;
+
+ /**
+ * The file resource.
+ * @var resource
+ */
+ protected $fp;
+
+ /**
+ * Helper function which can be easily overriden by daily file appender.
+ */
+ protected function getTargetFile() {
+ return $this->file;
+ }
+
+ /**
+ * Acquires the target file resource, creates the destination folder if
+ * necessary. Writes layout header to file.
+ *
+ * @return boolean FALSE if opening failed
+ */
+ protected function openFile() {
+ $file = $this->getTargetFile();
+
+ // Create the target folder if needed
+ if (!is_file($file)) {
+ $dir = dirname($file);
+
+ if (!is_dir($dir)) {
+ $success = mkdir($dir, 0777, true);
+ if ($success === false) {
+ $this->warn("Failed creating target directory [$dir]. Closing appender.");
+ $this->closed = true;
+ return false;
+ }
+ }
+ }
+
+ $mode = $this->append ? 'a' : 'w';
+ $this->fp = fopen($file, $mode);
+ if ($this->fp === false) {
+ $this->warn("Failed opening target file. Closing appender.");
+ $this->fp = null;
+ $this->closed = true;
+ return false;
+ }
+
+ // Required when appending with concurrent access
+ if ($this->append) {
+ fseek($this->fp, 0, SEEK_END);
+ }
+
+ // Write the header
+ $this->write($this->layout->getHeader());
+ }
+
+ /**
+ * Writes a string to the target file. Opens file if not already open.
+ * @param string $string Data to write.
+ */
+ protected function write($string) {
+ // Lazy file open
+ if (!isset($this->fp)) {
+ if ($this->openFile() === false) {
+ return; // Do not write if file open failed.
+ }
+ }
+
+ if ($this->locking) {
+ $this->writeWithLocking($string);
+ } else {
+ $this->writeWithoutLocking($string);
+ }
+ }
+
+ protected function writeWithLocking($string) {
+ if (flock($this->fp, LOCK_EX)) {
+ if (fwrite($this->fp, $string) === false) {
+ $this->warn("Failed writing to file. Closing appender.");
+ $this->closed = true;
+ }
+ flock($this->fp, LOCK_UN);
+ } else {
+ $this->warn("Failed locking file for writing. Closing appender.");
+ $this->closed = true;
+ }
+ }
+
+ protected function writeWithoutLocking($string) {
+ if (fwrite($this->fp, $string) === false) {
+ $this->warn("Failed writing to file. Closing appender.");
+ $this->closed = true;
+ }
+ }
+
+ public function activateOptions() {
+ if (empty($this->file)) {
+ $this->warn("Required parameter 'file' not set. Closing appender.");
+ $this->closed = true;
+ return;
+ }
+ }
+
+ public function close() {
+ if (is_resource($this->fp)) {
+ $this->write($this->layout->getFooter());
+ fclose($this->fp);
+ }
+ $this->fp = null;
+ $this->closed = true;
+ }
+
+ public function append(LoggerLoggingEvent $event) {
+ $this->write($this->layout->format($event));
+ }
+
+ /**
+ * Sets the 'file' parameter.
+ * @param string $file
+ */
+ public function setFile($file) {
+ $this->setString('file', $file);
+ }
+
+ /**
+ * Returns the 'file' parameter.
+ * @return string
+ */
+ public function getFile() {
+ return $this->file;
+ }
+
+ /**
+ * Returns the 'append' parameter.
+ * @return boolean
+ */
+ public function getAppend() {
+ return $this->append;
+ }
+
+ /**
+ * Sets the 'append' parameter.
+ * @param boolean $append
+ */
+ public function setAppend($append) {
+ $this->setBoolean('append', $append);
+ }
+
+ /**
+ * Sets the 'file' parmeter. Left for legacy reasons.
+ * @param string $fileName
+ * @deprecated Use setFile() instead.
+ */
+ public function setFileName($fileName) {
+ $this->setFile($fileName);
+ }
+
+ /**
+ * Returns the 'file' parmeter. Left for legacy reasons.
+ * @return string
+ * @deprecated Use getFile() instead.
+ */
+ public function getFileName() {
+ return $this->getFile();
+ }
+}