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99 lines
3.7 KiB
99 lines
3.7 KiB
2 years ago
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<?php
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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
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/**
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* @package moodlecore
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* @subpackage backup-logger
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* @copyright 2010 onwards Eloy Lafuente (stronk7) {@link http://stronk7.com}
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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/**
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* Logger implementation that sends indented messages (depth option) to one file
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*
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* TODO: Finish phpdocs
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*/
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class file_logger extends base_logger {
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protected $fullpath; // Full path to OS file where contents will be stored
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protected $fhandle; // File handle where all write operations happen
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public function __construct($level, $showdate = false, $showlevel = false, $fullpath = null) {
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if (empty($fullpath)) {
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throw new base_logger_exception('missing_fullpath_parameter', $fullpath);
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}
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if (!is_writable(dirname($fullpath))) {
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throw new base_logger_exception('file_not_writable', $fullpath);
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}
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// Open the OS file for writing (append)
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$this->fullpath = $fullpath;
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if ($level > backup::LOG_NONE) { // Only create the file if we are going to log something
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if (! $this->fhandle = fopen($this->fullpath, 'a')) {
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throw new base_logger_exception('error_opening_file', $fullpath);
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}
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}
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parent::__construct($level, $showdate, $showlevel);
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}
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public function __destruct() {
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@fclose($this->fhandle); // Blindy close the file handler (no exceptions in destruct)
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}
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public function __sleep() {
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@fclose($this->fhandle); // Blindy close the file handler before serialization
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return array('level', 'showdate', 'showlevel', 'next', 'fullpath');
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}
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public function __wakeup() {
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if ($this->level > backup::LOG_NONE) { // Only create the file if we are going to log something
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if (! $this->fhandle = fopen($this->fullpath, 'a')) {
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throw new base_logger_exception('error_opening_file', $this->fullpath);
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}
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}
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}
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/**
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* Close the logger resources (file handle) if still open.
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*
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* @since Moodle 3.1
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*/
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public function close() {
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// Close the file handle if hasn't been closed already.
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if (is_resource($this->fhandle)) {
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fclose($this->fhandle);
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$this->fhandle = null;
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}
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}
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// Protected API starts here
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protected function action($message, $level, $options = null) {
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$prefix = $this->get_prefix($level, $options);
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$depth = isset($options['depth']) ? $options['depth'] : 0;
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// Depending of the type (extension of the file), format differently
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if (substr($this->fullpath, -5) !== '.html') {
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$content = $prefix . str_repeat(' ', $depth) . $message . PHP_EOL;
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} else {
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$content = $prefix . str_repeat(' ', $depth) . htmlentities($message, ENT_QUOTES, 'UTF-8') . '<br/>' . PHP_EOL;
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}
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if (false === fwrite($this->fhandle, $content)) {
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throw new base_logger_exception('error_writing_file', $this->fullpath);
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}
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return true;
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}
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}
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