From 9eabae58420ecb3cc289d6d7ff4c2414f9c63370 Mon Sep 17 00:00:00 2001
From: Minteck <minteck@phoenixnet.tech>
Date: Sun, 31 Oct 2021 12:30:56 +0100
Subject: Initial commit

---
 includes/getid3/module.archive.hpk.php | 92 ++++++++++++++++++++++++++++++++++
 1 file changed, 92 insertions(+)
 create mode 100644 includes/getid3/module.archive.hpk.php

(limited to 'includes/getid3/module.archive.hpk.php')

diff --git a/includes/getid3/module.archive.hpk.php b/includes/getid3/module.archive.hpk.php
new file mode 100644
index 0000000..328dbd5
--- /dev/null
+++ b/includes/getid3/module.archive.hpk.php
@@ -0,0 +1,92 @@
+<?php
+
+/////////////////////////////////////////////////////////////////
+/// getID3() by James Heinrich <info@getid3.org>               //
+//  available at https://github.com/JamesHeinrich/getID3       //
+//            or https://www.getid3.org                        //
+//            or http://getid3.sourceforge.net                 //
+//  see readme.txt for more details                            //
+/////////////////////////////////////////////////////////////////
+//                                                             //
+// module.archive.hpk.php                                      //
+// module for analyzing HPK files                              //
+// dependencies: NONE                                          //
+//                                                            ///
+/////////////////////////////////////////////////////////////////
+
+if (!defined('GETID3_INCLUDEPATH')) { // prevent path-exposing attacks that access modules directly on public webservers
+	exit;
+}
+
+class getid3_hpk extends getid3_handler
+{
+	/**
+	 * @return bool
+	 */
+	public function Analyze() {
+		$info = &$this->getid3->info;
+
+		$info['fileformat'] = 'hpk';
+
+		$this->fseek($info['avdataoffset']);
+		$HPKheader = $this->fread(36);
+
+		if (substr($HPKheader, 0, 4) == 'BPUL') {
+
+			$info['hpk']['header']['signature']                    =                              substr($HPKheader,  0, 4);
+			$info['hpk']['header']['data_offset']                  = getid3_lib::LittleEndian2Int(substr($HPKheader,  4, 4));
+			$info['hpk']['header']['fragments_per_file']           = getid3_lib::LittleEndian2Int(substr($HPKheader,  8, 4));
+			//$info['hpk']['header']['unknown1']                     = getid3_lib::LittleEndian2Int(substr($HPKheader, 12, 4));
+			$info['hpk']['header']['fragments_residual_offset']    = getid3_lib::LittleEndian2Int(substr($HPKheader, 16, 4));
+			$info['hpk']['header']['fragments_residual_count']     = getid3_lib::LittleEndian2Int(substr($HPKheader, 20, 4));
+			//$info['hpk']['header']['unknown2']                     = getid3_lib::LittleEndian2Int(substr($HPKheader, 24, 4));
+			$info['hpk']['header']['fragmented_filesystem_offset'] = getid3_lib::LittleEndian2Int(substr($HPKheader, 28, 4));
+			$info['hpk']['header']['fragmented_filesystem_length'] = getid3_lib::LittleEndian2Int(substr($HPKheader, 32, 4));
+
+			$info['hpk']['header']['filesystem_entries'] = $info['hpk']['header']['fragmented_filesystem_length'] / ($info['hpk']['header']['fragments_per_file'] * 8);
+			$this->fseek($info['hpk']['header']['fragmented_filesystem_offset']);
+			for ($i = 0; $i < $info['hpk']['header']['filesystem_entries']; $i++) {
+				$offset = getid3_lib::LittleEndian2Int($this->fread(4));
+				$length = getid3_lib::LittleEndian2Int($this->fread(4));
+				$info['hpk']['filesystem'][$i] = array('offset' => $offset, 'length' => $length);
+			}
+
+$this->error('HPK parsing incomplete (and mostly broken) in this version of getID3() ['.$this->getid3->version().']');
+
+/*
+			$filename = '';
+			$dirs = array();
+			foreach ($info['hpk']['filesystem'] as $key => $filesystemdata) {
+				$this->fseek($filesystemdata['offset']);
+				$first4 = $this->fread(4);
+				if (($first4 == 'LZ4 ') || ($first4 == 'ZLIB')) {
+					// actual data, ignore
+					$info['hpk']['toc'][$key] = array(
+						'filename' => ltrim(implode('/', $dirs).'/'.$filename, '/'),
+						'offset'   => $filesystemdata['offset'],
+						'length'   => $filesystemdata['length'],
+					);
+					$filename = '';
+					$dirs = array();
+				} else {
+					$fragment_index = getid3_lib::LittleEndian2Int($first4);
+					$fragment_type  = getid3_lib::LittleEndian2Int($this->fread(4)); // file = 0, directory = 1
+					$name_length    = getid3_lib::LittleEndian2Int($this->fread(2));
+					if ($fragment_type == 1) {
+						$dirs[]   = $this->fread($name_length);
+					} else {
+						$filename = $this->fread($name_length);
+					}
+				}
+			}
+*/
+
+		} else {
+			$this->error('Expecting "BPUL" at offset '.$info['avdataoffset'].', found "'.getid3_lib::PrintHexBytes(substr($HPKheader, 0, 4)).'"');
+			return false;
+		}
+
+		return true;
+	}
+
+}
-- 
cgit