<?php namespace HashOver;// Copyright (C) 2010-2021 Jacob Barkdull// This file is part of HashOver.//// HashOver 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.//// HashOver 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 HashOver. If not, see <http://www.gnu.org/licenses/>.// Functions for reading and writing XML filesclass ParseXML extends CommentFiles{ protected $flags; public function __construct (Setup $setup, Thread $thread) { // Construct parent class parent::__construct ($setup, $thread); // Enable XML user error handling libxml_use_internal_errors (true); // Set LibXML flags $this->flags = LIBXML_COMPACT | LIBXML_NOCDATA; // Throw exception if required XML extensions aren't loaded $setup->extensionsLoaded (array ( 'xml', 'libxml', 'SimpleXML' )); } // Returns an array of comment files public function query () { return $this->loadFiles ('xml'); } // Reads and processes a comment file public function read ($file, $thread = 'auto') { // Get comment file path $file = $this->getCommentPath ($file, 'xml', $thread); // Read XML comment file $data = @file_get_contents ($file); // Check for file read error if ($data !== false) { // Parse XML comment file $xml = @simplexml_load_string ($data, 'SimpleXMLElement', $this->flags); // Check for XML parse error if ($xml !== false) { // If no error, trim comment $xml->body = trim ($xml->body, "\r\n\t"); // And remove two levels of indentation from comment $xml->body = preg_replace ('/^\t{0,2}/mS', '', $xml->body); return (array) $xml; } } return false; } // Saves a comment file public function save ($file, array $contents, $editing = false, $thread = 'auto') { // Get comment file path $file = $this->getCommentPath ($file, 'xml', $thread); // Return false on attempts to override an existing file if (file_exists ($file) and $editing === false) { return false; } // Create empty XML DOM document $dom = new \DOMDocument ('1.0', 'UTF-8'); $dom->preserveWhiteSpace = false; $dom->formatOutput = true; // Create root <comment> element $comment = $dom->createElement ('comment'); // Add comment data to root <comment> element foreach ($contents as $key => $value) { // Create element by content key $element = $dom->createElement ($key); // Check if element is <body> element if ($key === 'body') { // If so, set initial new body of comment $new_value = ''; // Split body into lines $lines = explode (PHP_EOL, trim ($value, PHP_EOL)); // Run through lines foreach ($lines as $line) { // Add indentation if line is not empty if (!empty ($line)) { $new_value .= "\t\t"; } // Add line to new body $new_value .= $line . "\n"; } // And update body value $value = "\n" . $new_value . "\t"; } // Create a text node for content value $text_node = $dom->createTextNode ($value); // Append content value text node to element $element->appendChild ($text_node); // And append content element $comment->appendChild ($element); } // Append root <comment> element $dom->appendChild ($comment); // Replace double spaces with single tab $tabbed_dom = str_replace (' ', "\t", $dom->saveXML ()); // Convert line endings to OS-specific style $tabbed_dom = $this->osLineEndings ($tabbed_dom); // Return true if file writes successfully (0 counts as failure) if (@file_put_contents ($file, $tabbed_dom, LOCK_EX)) { // If successful, change file permissions @chmod ($file, 0600); // And return true return true; } // Otherwise, return false return false; } // Deletes a comment file public function delete ($file, $hard_unlink = false) { // Actually delete the comment file if ($hard_unlink === true) { return unlink ($this->getCommentPath ($file, 'xml')); } // Read comment file $xml = $this->read ($file); // Check for XML parse error if ($xml !== false) { // Change status to deleted $xml['status'] = 'deleted'; // Attempt to save file if ($this->save ($file, $xml, true)) { return true; } } return false; }}