| 1 | <?php
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| 2 | /**
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| 3 | *
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| 4 | * @package phpBB3
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| 5 | * @version $Id$
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| 6 | * @copyright (c) 2005 phpBB Group
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| 7 | * @license http://opensource.org/licenses/gpl-license.php GNU Public License
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| 8 | *
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| 9 | */
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| 10 |
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| 11 | /**
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| 12 | * @ignore
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| 13 | */
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| 14 | if (!defined('IN_PHPBB'))
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| 15 | {
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| 16 | exit;
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| 17 | }
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| 18 |
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| 19 | /**
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| 20 | * Class for handling archives (compression/decompression)
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| 21 | * @package phpBB3
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| 22 | */
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| 23 | class compress
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| 24 | {
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| 25 | var $fp = 0;
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| 26 |
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| 27 | /**
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| 28 | * Add file to archive
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| 29 | */
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| 30 | function add_file($src, $src_rm_prefix = '', $src_add_prefix = '', $skip_files = '')
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| 31 | {
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| 32 | global $phpbb_root_path;
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| 33 |
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| 34 | $skip_files = explode(',', $skip_files);
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| 35 |
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| 36 | // Remove rm prefix from src path
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| 37 | $src_path = ($src_rm_prefix) ? preg_replace('#^(' . preg_quote($src_rm_prefix, '#') . ')#', '', $src) : $src;
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| 38 | // Add src prefix
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| 39 | $src_path = ($src_add_prefix) ? ($src_add_prefix . ((substr($src_add_prefix, -1) != '/') ? '/' : '') . $src_path) : $src_path;
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| 40 | // Remove initial "/" if present
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| 41 | $src_path = (substr($src_path, 0, 1) == '/') ? substr($src_path, 1) : $src_path;
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| 42 |
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| 43 | if (is_file($phpbb_root_path . $src))
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| 44 | {
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| 45 | $this->data($src_path, file_get_contents("$phpbb_root_path$src"), false, stat("$phpbb_root_path$src"));
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| 46 | }
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| 47 | else if (is_dir($phpbb_root_path . $src))
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| 48 | {
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| 49 | // Clean up path, add closing / if not present
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| 50 | $src_path = ($src_path && substr($src_path, -1) != '/') ? $src_path . '/' : $src_path;
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| 51 |
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| 52 | $filelist = array();
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| 53 | $filelist = filelist("$phpbb_root_path$src", '', '*');
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| 54 | krsort($filelist);
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| 55 |
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| 56 | if ($src_path)
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| 57 | {
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| 58 | $this->data($src_path, '', true, stat("$phpbb_root_path$src"));
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| 59 | }
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| 60 |
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| 61 | foreach ($filelist as $path => $file_ary)
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| 62 | {
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| 63 | if ($path)
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| 64 | {
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| 65 | // Same as for src_path
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| 66 | $path = (substr($path, 0, 1) == '/') ? substr($path, 1) : $path;
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| 67 | $path = ($path && substr($path, -1) != '/') ? $path . '/' : $path;
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| 68 |
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| 69 | $this->data("$src_path$path", '', true, stat("$phpbb_root_path$src$path"));
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| 70 | }
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| 71 |
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| 72 | foreach ($file_ary as $file)
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| 73 | {
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| 74 | if (in_array($path . $file, $skip_files))
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| 75 | {
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| 76 | continue;
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| 77 | }
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| 78 |
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| 79 | $this->data("$src_path$path$file", file_get_contents("$phpbb_root_path$src$path$file"), false, stat("$phpbb_root_path$src$path$file"));
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| 80 | }
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| 81 | }
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| 82 | }
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| 83 | else
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| 84 | {
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| 85 | // $src does not exist
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| 86 | return false;
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| 87 | }
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| 88 |
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| 89 | return true;
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| 90 | }
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| 91 |
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| 92 | /**
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| 93 | * Add custom file (the filepath will not be adjusted)
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| 94 | */
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| 95 | function add_custom_file($src, $filename)
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| 96 | {
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| 97 | if (!file_exists($src))
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| 98 | {
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| 99 | return false;
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| 100 | }
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| 101 |
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| 102 | $this->data($filename, file_get_contents($src), false, stat($src));
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| 103 | return true;
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| 104 | }
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| 105 |
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| 106 | /**
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| 107 | * Add file data
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| 108 | */
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| 109 | function add_data($src, $name)
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| 110 | {
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| 111 | $stat = array();
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| 112 | $stat[2] = 436; //384
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| 113 | $stat[4] = $stat[5] = 0;
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| 114 | $stat[7] = strlen($src);
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| 115 | $stat[9] = time();
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| 116 | $this->data($name, $src, false, $stat);
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| 117 | return true;
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| 118 | }
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| 119 |
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| 120 | /**
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| 121 | * Return available methods
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| 122 | */
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| 123 | function methods()
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| 124 | {
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| 125 | $methods = array('.tar');
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| 126 | $available_methods = array('.tar.gz' => 'zlib', '.tar.bz2' => 'bz2', '.zip' => 'zlib');
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| 127 |
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| 128 | foreach ($available_methods as $type => $module)
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| 129 | {
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| 130 | if (!@extension_loaded($module))
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| 131 | {
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| 132 | continue;
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| 133 | }
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| 134 | $methods[] = $type;
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| 135 | }
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| 136 |
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| 137 | return $methods;
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| 138 | }
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| 139 | }
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| 140 |
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| 141 | /**
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| 142 | * Zip creation class from phpMyAdmin 2.3.0 (c) Tobias Ratschiller, Olivier Müller, Loïc Chapeaux,
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| 143 | * Marc Delisle, http://www.phpmyadmin.net/
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| 144 | *
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| 145 | * Zip extraction function by Alexandre Tedeschi, alexandrebr at gmail dot com
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| 146 | *
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| 147 | * Modified extensively by psoTFX and DavidMJ, (c) phpBB Group, 2003
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| 148 | *
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| 149 | * Based on work by Eric Mueller and Denis125
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| 150 | * Official ZIP file format: http://www.pkware.com/appnote.txt
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| 151 | *
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| 152 | * @package phpBB3
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| 153 | */
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| 154 | class compress_zip extends compress
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| 155 | {
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| 156 | var $datasec = array();
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| 157 | var $ctrl_dir = array();
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| 158 | var $eof_cdh = "\x50\x4b\x05\x06\x00\x00\x00\x00";
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| 159 |
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| 160 | var $old_offset = 0;
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| 161 | var $datasec_len = 0;
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| 162 |
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| 163 | /**
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| 164 | * Constructor
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| 165 | */
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| 166 | function compress_zip($mode, $file)
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| 167 | {
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| 168 | $this->fp = @fopen($file, $mode . 'b');
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| 169 |
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| 170 | if (!$this->fp)
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| 171 | {
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| 172 | trigger_error('Unable to open file ' . $file . ' [' . $mode . 'b]');
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| 173 | }
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| 174 | }
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| 175 |
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| 176 | /**
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| 177 | * Convert unix to dos time
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| 178 | */
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| 179 | function unix_to_dos_time($time)
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| 180 | {
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| 181 | $timearray = (!$time) ? getdate() : getdate($time);
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| 182 |
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| 183 | if ($timearray['year'] < 1980)
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| 184 | {
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| 185 | $timearray['year'] = 1980;
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| 186 | $timearray['mon'] = $timearray['mday'] = 1;
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| 187 | $timearray['hours'] = $timearray['minutes'] = $timearray['seconds'] = 0;
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| 188 | }
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| 189 |
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| 190 | return (($timearray['year'] - 1980) << 25) | ($timearray['mon'] << 21) | ($timearray['mday'] << 16) | ($timearray['hours'] << 11) | ($timearray['minutes'] << 5) | ($timearray['seconds'] >> 1);
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| 191 | }
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| 192 |
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| 193 | /**
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| 194 | * Extract archive
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| 195 | */
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| 196 | function extract($dst)
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| 197 | {
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| 198 | // Loop the file, looking for files and folders
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| 199 | $dd_try = false;
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| 200 | rewind($this->fp);
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| 201 |
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| 202 | while (!feof($this->fp))
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| 203 | {
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| 204 | // Check if the signature is valid...
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| 205 | $signature = fread($this->fp, 4);
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| 206 |
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| 207 | switch ($signature)
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| 208 | {
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| 209 | // 'Local File Header'
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| 210 | case "\x50\x4b\x03\x04":
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| 211 | // Lets get everything we need.
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| 212 | // We don't store the version needed to extract, the general purpose bit flag or the date and time fields
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| 213 | $data = unpack("@4/vc_method/@10/Vcrc/Vc_size/Vuc_size/vname_len/vextra_field", fread($this->fp, 26));
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| 214 | $file_name = fread($this->fp, $data['name_len']); // filename
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| 215 |
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| 216 | if ($data['extra_field'])
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| 217 | {
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| 218 | fread($this->fp, $data['extra_field']); // extra field
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| 219 | }
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| 220 |
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| 221 | $target_filename = "$dst$file_name";
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| 222 |
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| 223 | if (!$data['uc_size'] && !$data['crc'] && substr($file_name, -1, 1) == '/')
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| 224 | {
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| 225 | if (!is_dir($target_filename))
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| 226 | {
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| 227 | $str = '';
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| 228 | $folders = explode('/', $target_filename);
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| 229 |
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| 230 | // Create and folders and subfolders if they do not exist
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| 231 | foreach ($folders as $folder)
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| 232 | {
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| 233 | $folder = trim($folder);
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| 234 | if (!$folder)
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| 235 | {
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| 236 | continue;
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| 237 | }
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| 238 |
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| 239 | $str = (!empty($str)) ? $str . '/' . $folder : $folder;
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| 240 | if (!is_dir($str))
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| 241 | {
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| 242 | if (!@mkdir($str, 0777))
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| 243 | {
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| 244 | trigger_error("Could not create directory $folder");
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| 245 | }
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| 246 | phpbb_chmod($str, CHMOD_READ | CHMOD_WRITE);
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| 247 | }
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| 248 | }
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| 249 | }
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| 250 | // This is a directory, we are not writting files
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| 251 | continue;
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| 252 | }
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| 253 | else
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| 254 | {
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| 255 | // Some archivers are punks, they don't include folders in their archives!
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| 256 | $str = '';
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| 257 | $folders = explode('/', pathinfo($target_filename, PATHINFO_DIRNAME));
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| 258 |
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| 259 | // Create and folders and subfolders if they do not exist
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| 260 | foreach ($folders as $folder)
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| 261 | {
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| 262 | $folder = trim($folder);
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| 263 | if (!$folder)
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| 264 | {
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| 265 | continue;
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| 266 | }
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| 267 |
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| 268 | $str = (!empty($str)) ? $str . '/' . $folder : $folder;
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| 269 | if (!is_dir($str))
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| 270 | {
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| 271 | if (!@mkdir($str, 0777))
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| 272 | {
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| 273 | trigger_error("Could not create directory $folder");
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| 274 | }
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| 275 | phpbb_chmod($str, CHMOD_READ | CHMOD_WRITE);
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| 276 | }
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| 277 | }
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| 278 | }
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| 279 |
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| 280 | if (!$data['uc_size'])
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| 281 | {
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| 282 | $content = '';
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| 283 | }
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| 284 | else
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| 285 | {
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| 286 | $content = fread($this->fp, $data['c_size']);
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| 287 | }
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| 288 |
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| 289 | $fp = fopen($target_filename, "w");
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| 290 |
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| 291 | switch ($data['c_method'])
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| 292 | {
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| 293 | case 0:
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| 294 | // Not compressed
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| 295 | fwrite($fp, $content);
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| 296 | break;
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| 297 |
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| 298 | case 8:
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| 299 | // Deflate
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| 300 | fwrite($fp, gzinflate($content, $data['uc_size']));
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| 301 | break;
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| 302 |
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| 303 | case 12:
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| 304 | // Bzip2
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| 305 | fwrite($fp, bzdecompress($content));
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| 306 | break;
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| 307 | }
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| 308 |
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| 309 | fclose($fp);
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| 310 | break;
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| 311 |
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| 312 | // We hit the 'Central Directory Header', we can stop because nothing else in here requires our attention
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| 313 | // or we hit the end of the central directory record, we can safely end the loop as we are totally finished with looking for files and folders
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| 314 | case "\x50\x4b\x01\x02":
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| 315 | // This case should simply never happen.. but it does exist..
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| 316 | case "\x50\x4b\x05\x06":
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| 317 | break 2;
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| 318 |
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| 319 | // 'Packed to Removable Disk', ignore it and look for the next signature...
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| 320 | case 'PK00':
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| 321 | continue 2;
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| 322 |
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| 323 | // We have encountered a header that is weird. Lets look for better data...
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| 324 | default:
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| 325 | if (!$dd_try)
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| 326 | {
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| 327 | // Unexpected header. Trying to detect wrong placed 'Data Descriptor';
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| 328 | $dd_try = true;
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| 329 | fseek($this->fp, 8, SEEK_CUR); // Jump over 'crc-32'(4) 'compressed-size'(4), 'uncompressed-size'(4)
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| 330 | continue 2;
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| 331 | }
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| 332 | trigger_error("Unexpected header, ending loop");
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| 333 | break 2;
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| 334 | }
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| 335 |
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| 336 | $dd_try = false;
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| 337 | }
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| 338 | }
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| 339 |
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| 340 | /**
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| 341 | * Close archive
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| 342 | */
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| 343 | function close()
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| 344 | {
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| 345 | // Write out central file directory and footer ... if it exists
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| 346 | if (sizeof($this->ctrl_dir))
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| 347 | {
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| 348 | fwrite($this->fp, $this->file());
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| 349 | }
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| 350 | fclose($this->fp);
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| 351 | }
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| 352 |
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| 353 | /**
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| 354 | * Create the structures ... note we assume version made by is MSDOS
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| 355 | */
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| 356 | function data($name, $data, $is_dir = false, $stat)
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| 357 | {
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| 358 | $name = str_replace('\\', '/', $name);
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| 359 |
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| 360 | $hexdtime = pack('V', $this->unix_to_dos_time($stat[9]));
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| 361 |
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| 362 | if ($is_dir)
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| 363 | {
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| 364 | $unc_len = $c_len = $crc = 0;
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| 365 | $zdata = '';
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| 366 | $var_ext = 10;
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| 367 | }
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| 368 | else
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| 369 | {
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| 370 | $unc_len = strlen($data);
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| 371 | $crc = crc32($data);
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| 372 | $zdata = gzdeflate($data);
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| 373 | $c_len = strlen($zdata);
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| 374 | $var_ext = 20;
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| 375 |
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| 376 | // Did we compress? No, then use data as is
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| 377 | if ($c_len >= $unc_len)
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| 378 | {
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| 379 | $zdata = $data;
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| 380 | $c_len = $unc_len;
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| 381 | $var_ext = 10;
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| 382 | }
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| 383 | }
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| 384 | unset($data);
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| 385 |
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| 386 | // If we didn't compress set method to store, else deflate
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| 387 | $c_method = ($c_len == $unc_len) ? "\x00\x00" : "\x08\x00";
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| 388 |
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| 389 | // Are we a file or a directory? Set archive for file
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| 390 | $attrib = ($is_dir) ? 16 : 32;
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| 391 |
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| 392 | // File Record Header
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| 393 | $fr = "\x50\x4b\x03\x04"; // Local file header 4bytes
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| 394 | $fr .= pack('v', $var_ext); // ver needed to extract 2bytes
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| 395 | $fr .= "\x00\x00"; // gen purpose bit flag 2bytes
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| 396 | $fr .= $c_method; // compression method 2bytes
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| 397 | $fr .= $hexdtime; // last mod time and date 2+2bytes
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| 398 | $fr .= pack('V', $crc); // crc32 4bytes
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| 399 | $fr .= pack('V', $c_len); // compressed filesize 4bytes
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| 400 | $fr .= pack('V', $unc_len); // uncompressed filesize 4bytes
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| 401 | $fr .= pack('v', strlen($name));// length of filename 2bytes
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| 402 |
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| 403 | $fr .= pack('v', 0); // extra field length 2bytes
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| 404 | $fr .= $name;
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| 405 | $fr .= $zdata;
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| 406 | unset($zdata);
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| 407 |
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| 408 | $this->datasec_len += strlen($fr);
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| 409 |
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| 410 | // Add data to file ... by writing data out incrementally we save some memory
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| 411 | fwrite($this->fp, $fr);
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| 412 | unset($fr);
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| 413 |
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| 414 | // Central Directory Header
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| 415 | $cdrec = "\x50\x4b\x01\x02"; // header 4bytes
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| 416 | $cdrec .= "\x00\x00"; // version made by
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| 417 | $cdrec .= pack('v', $var_ext); // version needed to extract
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| 418 | $cdrec .= "\x00\x00"; // gen purpose bit flag
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| 419 | $cdrec .= $c_method; // compression method
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| 420 | $cdrec .= $hexdtime; // last mod time & date
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| 421 | $cdrec .= pack('V', $crc); // crc32
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| 422 | $cdrec .= pack('V', $c_len); // compressed filesize
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| 423 | $cdrec .= pack('V', $unc_len); // uncompressed filesize
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| 424 | $cdrec .= pack('v', strlen($name)); // length of filename
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| 425 | $cdrec .= pack('v', 0); // extra field length
|
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| 426 | $cdrec .= pack('v', 0); // file comment length
|
|---|
| 427 | $cdrec .= pack('v', 0); // disk number start
|
|---|
| 428 | $cdrec .= pack('v', 0); // internal file attributes
|
|---|
| 429 | $cdrec .= pack('V', $attrib); // external file attributes
|
|---|
| 430 | $cdrec .= pack('V', $this->old_offset); // relative offset of local header
|
|---|
| 431 | $cdrec .= $name;
|
|---|
| 432 |
|
|---|
| 433 | // Save to central directory
|
|---|
| 434 | $this->ctrl_dir[] = $cdrec;
|
|---|
| 435 |
|
|---|
| 436 | $this->old_offset = $this->datasec_len;
|
|---|
| 437 | }
|
|---|
| 438 |
|
|---|
| 439 | /**
|
|---|
| 440 | * file
|
|---|
| 441 | */
|
|---|
| 442 | function file()
|
|---|
| 443 | {
|
|---|
| 444 | $ctrldir = implode('', $this->ctrl_dir);
|
|---|
| 445 |
|
|---|
| 446 | return $ctrldir . $this->eof_cdh .
|
|---|
| 447 | pack('v', sizeof($this->ctrl_dir)) . // total # of entries "on this disk"
|
|---|
| 448 | pack('v', sizeof($this->ctrl_dir)) . // total # of entries overall
|
|---|
| 449 | pack('V', strlen($ctrldir)) . // size of central dir
|
|---|
| 450 | pack('V', $this->datasec_len) . // offset to start of central dir
|
|---|
| 451 | "\x00\x00"; // .zip file comment length
|
|---|
| 452 | }
|
|---|
| 453 |
|
|---|
| 454 | /**
|
|---|
| 455 | * Download archive
|
|---|
| 456 | */
|
|---|
| 457 | function download($filename, $download_name = false)
|
|---|
| 458 | {
|
|---|
| 459 | global $phpbb_root_path;
|
|---|
| 460 |
|
|---|
| 461 | if ($download_name === false)
|
|---|
| 462 | {
|
|---|
| 463 | $download_name = $filename;
|
|---|
| 464 | }
|
|---|
| 465 |
|
|---|
| 466 | $mimetype = 'application/zip';
|
|---|
| 467 |
|
|---|
| 468 | header('Pragma: no-cache');
|
|---|
| 469 | header("Content-Type: $mimetype; name=\"$download_name.zip\"");
|
|---|
| 470 | header("Content-disposition: attachment; filename=$download_name.zip");
|
|---|
| 471 |
|
|---|
| 472 | $fp = @fopen("{$phpbb_root_path}store/$filename.zip", 'rb');
|
|---|
| 473 | if ($fp)
|
|---|
| 474 | {
|
|---|
| 475 | while ($buffer = fread($fp, 1024))
|
|---|
| 476 | {
|
|---|
| 477 | echo $buffer;
|
|---|
| 478 | }
|
|---|
| 479 | fclose($fp);
|
|---|
| 480 | }
|
|---|
| 481 | }
|
|---|
| 482 | }
|
|---|
| 483 |
|
|---|
| 484 | /**
|
|---|
| 485 | * Tar/tar.gz compression routine
|
|---|
| 486 | * Header/checksum creation derived from tarfile.pl, (c) Tom Horsley, 1994
|
|---|
| 487 | *
|
|---|
| 488 | * @package phpBB3
|
|---|
| 489 | */
|
|---|
| 490 | class compress_tar extends compress
|
|---|
| 491 | {
|
|---|
| 492 | var $isgz = false;
|
|---|
| 493 | var $isbz = false;
|
|---|
| 494 | var $filename = '';
|
|---|
| 495 | var $mode = '';
|
|---|
| 496 | var $type = '';
|
|---|
| 497 | var $wrote = false;
|
|---|
| 498 |
|
|---|
| 499 | /**
|
|---|
| 500 | * Constructor
|
|---|
| 501 | */
|
|---|
| 502 | function compress_tar($mode, $file, $type = '')
|
|---|
| 503 | {
|
|---|
| 504 | $type = (!$type) ? $file : $type;
|
|---|
| 505 | $this->isgz = (strpos($type, '.tar.gz') !== false || strpos($type, '.tgz') !== false) ? true : false;
|
|---|
| 506 | $this->isbz = (strpos($type, '.tar.bz2') !== false) ? true : false;
|
|---|
| 507 |
|
|---|
| 508 | $this->mode = &$mode;
|
|---|
| 509 | $this->file = &$file;
|
|---|
| 510 | $this->type = &$type;
|
|---|
| 511 | $this->open();
|
|---|
| 512 | }
|
|---|
| 513 |
|
|---|
| 514 | /**
|
|---|
| 515 | * Extract archive
|
|---|
| 516 | */
|
|---|
| 517 | function extract($dst)
|
|---|
| 518 | {
|
|---|
| 519 | $fzread = ($this->isbz && function_exists('bzread')) ? 'bzread' : (($this->isgz && @extension_loaded('zlib')) ? 'gzread' : 'fread');
|
|---|
| 520 |
|
|---|
| 521 | // Run through the file and grab directory entries
|
|---|
| 522 | while ($buffer = $fzread($this->fp, 512))
|
|---|
| 523 | {
|
|---|
| 524 | $tmp = unpack('A6magic', substr($buffer, 257, 6));
|
|---|
| 525 |
|
|---|
| 526 | if (trim($tmp['magic']) == 'ustar')
|
|---|
| 527 | {
|
|---|
| 528 | $tmp = unpack('A100name', $buffer);
|
|---|
| 529 | $filename = trim($tmp['name']);
|
|---|
| 530 |
|
|---|
| 531 | $tmp = unpack('Atype', substr($buffer, 156, 1));
|
|---|
| 532 | $filetype = (int) trim($tmp['type']);
|
|---|
| 533 |
|
|---|
| 534 | $tmp = unpack('A12size', substr($buffer, 124, 12));
|
|---|
| 535 | $filesize = octdec((int) trim($tmp['size']));
|
|---|
| 536 |
|
|---|
| 537 | $target_filename = "$dst$filename";
|
|---|
| 538 |
|
|---|
| 539 | if ($filetype == 5)
|
|---|
| 540 | {
|
|---|
| 541 | if (!is_dir($target_filename))
|
|---|
| 542 | {
|
|---|
| 543 | $str = '';
|
|---|
| 544 | $folders = explode('/', $target_filename);
|
|---|
| 545 |
|
|---|
| 546 | // Create and folders and subfolders if they do not exist
|
|---|
| 547 | foreach ($folders as $folder)
|
|---|
| 548 | {
|
|---|
| 549 | $folder = trim($folder);
|
|---|
| 550 | if (!$folder)
|
|---|
| 551 | {
|
|---|
| 552 | continue;
|
|---|
| 553 | }
|
|---|
| 554 |
|
|---|
| 555 | $str = (!empty($str)) ? $str . '/' . $folder : $folder;
|
|---|
| 556 | if (!is_dir($str))
|
|---|
| 557 | {
|
|---|
| 558 | if (!@mkdir($str, 0777))
|
|---|
| 559 | {
|
|---|
| 560 | trigger_error("Could not create directory $folder");
|
|---|
| 561 | }
|
|---|
| 562 | phpbb_chmod($str, CHMOD_READ | CHMOD_WRITE);
|
|---|
| 563 | }
|
|---|
| 564 | }
|
|---|
| 565 | }
|
|---|
| 566 | }
|
|---|
| 567 | else if ($filesize >= 0 && ($filetype == 0 || $filetype == "\0"))
|
|---|
| 568 | {
|
|---|
| 569 | // Some archivers are punks, they don't properly order the folders in their archives!
|
|---|
| 570 | $str = '';
|
|---|
| 571 | $folders = explode('/', pathinfo($target_filename, PATHINFO_DIRNAME));
|
|---|
| 572 |
|
|---|
| 573 | // Create and folders and subfolders if they do not exist
|
|---|
| 574 | foreach ($folders as $folder)
|
|---|
| 575 | {
|
|---|
| 576 | $folder = trim($folder);
|
|---|
| 577 | if (!$folder)
|
|---|
| 578 | {
|
|---|
| 579 | continue;
|
|---|
| 580 | }
|
|---|
| 581 |
|
|---|
| 582 | $str = (!empty($str)) ? $str . '/' . $folder : $folder;
|
|---|
| 583 | if (!is_dir($str))
|
|---|
| 584 | {
|
|---|
| 585 | if (!@mkdir($str, 0777))
|
|---|
| 586 | {
|
|---|
| 587 | trigger_error("Could not create directory $folder");
|
|---|
| 588 | }
|
|---|
| 589 | phpbb_chmod($str, CHMOD_READ | CHMOD_WRITE);
|
|---|
| 590 | }
|
|---|
| 591 | }
|
|---|
| 592 |
|
|---|
| 593 | // Write out the files
|
|---|
| 594 | if (!($fp = fopen($target_filename, 'wb')))
|
|---|
| 595 | {
|
|---|
| 596 | trigger_error("Couldn't create file $filename");
|
|---|
| 597 | }
|
|---|
| 598 | phpbb_chmod($target_filename, CHMOD_READ);
|
|---|
| 599 |
|
|---|
| 600 | // Grab the file contents
|
|---|
| 601 | fwrite($fp, ($filesize) ? $fzread($this->fp, ($filesize + 511) &~ 511) : '', $filesize);
|
|---|
| 602 | fclose($fp);
|
|---|
| 603 | }
|
|---|
| 604 | }
|
|---|
| 605 | }
|
|---|
| 606 | }
|
|---|
| 607 |
|
|---|
| 608 | /**
|
|---|
| 609 | * Close archive
|
|---|
| 610 | */
|
|---|
| 611 | function close()
|
|---|
| 612 | {
|
|---|
| 613 | $fzclose = ($this->isbz && function_exists('bzclose')) ? 'bzclose' : (($this->isgz && @extension_loaded('zlib')) ? 'gzclose' : 'fclose');
|
|---|
| 614 |
|
|---|
| 615 | if ($this->wrote)
|
|---|
| 616 | {
|
|---|
| 617 | $fzwrite = ($this->isbz && function_exists('bzwrite')) ? 'bzwrite' : (($this->isgz && @extension_loaded('zlib')) ? 'gzwrite' : 'fwrite');
|
|---|
| 618 |
|
|---|
| 619 | // The end of a tar archive ends in two records of all NULLs (1024 bytes of \0)
|
|---|
| 620 | $fzwrite($this->fp, str_repeat("\0", 1024));
|
|---|
| 621 | }
|
|---|
| 622 |
|
|---|
| 623 | $fzclose($this->fp);
|
|---|
| 624 | }
|
|---|
| 625 |
|
|---|
| 626 | /**
|
|---|
| 627 | * Create the structures
|
|---|
| 628 | */
|
|---|
| 629 | function data($name, $data, $is_dir = false, $stat)
|
|---|
| 630 | {
|
|---|
| 631 | $this->wrote = true;
|
|---|
| 632 | $fzwrite = ($this->isbz && function_exists('bzwrite')) ? 'bzwrite' : (($this->isgz && @extension_loaded('zlib')) ? 'gzwrite' : 'fwrite');
|
|---|
| 633 |
|
|---|
| 634 | $typeflag = ($is_dir) ? '5' : '';
|
|---|
| 635 |
|
|---|
| 636 | // This is the header data, it contains all the info we know about the file or folder that we are about to archive
|
|---|
| 637 | $header = '';
|
|---|
| 638 | $header .= pack('a100', $name); // file name
|
|---|
| 639 | $header .= pack('a8', sprintf("%07o", $stat[2])); // file mode
|
|---|
| 640 | $header .= pack('a8', sprintf("%07o", $stat[4])); // owner id
|
|---|
| 641 | $header .= pack('a8', sprintf("%07o", $stat[5])); // group id
|
|---|
| 642 | $header .= pack('a12', sprintf("%011o", $stat[7])); // file size
|
|---|
| 643 | $header .= pack('a12', sprintf("%011o", $stat[9])); // last mod time
|
|---|
| 644 |
|
|---|
| 645 | // Checksum
|
|---|
| 646 | $checksum = 0;
|
|---|
| 647 | for ($i = 0; $i < 148; $i++)
|
|---|
| 648 | {
|
|---|
| 649 | $checksum += ord($header[$i]);
|
|---|
| 650 | }
|
|---|
| 651 |
|
|---|
| 652 | // We precompute the rest of the hash, this saves us time in the loop and allows us to insert our hash without resorting to string functions
|
|---|
| 653 | $checksum += 2415 + (($is_dir) ? 53 : 0);
|
|---|
| 654 |
|
|---|
| 655 | $header .= pack('a8', sprintf("%07o", $checksum)); // checksum
|
|---|
| 656 | $header .= pack('a1', $typeflag); // link indicator
|
|---|
| 657 | $header .= pack('a100', ''); // name of linked file
|
|---|
| 658 | $header .= pack('a6', 'ustar'); // ustar indicator
|
|---|
| 659 | $header .= pack('a2', '00'); // ustar version
|
|---|
| 660 | $header .= pack('a32', 'Unknown'); // owner name
|
|---|
| 661 | $header .= pack('a32', 'Unknown'); // group name
|
|---|
| 662 | $header .= pack('a8', ''); // device major number
|
|---|
| 663 | $header .= pack('a8', ''); // device minor number
|
|---|
| 664 | $header .= pack('a155', ''); // filename prefix
|
|---|
| 665 | $header .= pack('a12', ''); // end
|
|---|
| 666 |
|
|---|
| 667 | // This writes the entire file in one shot. Header, followed by data and then null padded to a multiple of 512
|
|---|
| 668 | $fzwrite($this->fp, $header . (($stat[7] !== 0 && !$is_dir) ? $data . str_repeat("\0", (($stat[7] + 511) &~ 511) - $stat[7]) : ''));
|
|---|
| 669 | unset($data);
|
|---|
| 670 | }
|
|---|
| 671 |
|
|---|
| 672 | /**
|
|---|
| 673 | * Open archive
|
|---|
| 674 | */
|
|---|
| 675 | function open()
|
|---|
| 676 | {
|
|---|
| 677 | $fzopen = ($this->isbz && function_exists('bzopen')) ? 'bzopen' : (($this->isgz && @extension_loaded('zlib')) ? 'gzopen' : 'fopen');
|
|---|
| 678 | $this->fp = @$fzopen($this->file, $this->mode . (($fzopen == 'bzopen') ? '' : 'b') . (($fzopen == 'gzopen') ? '9' : ''));
|
|---|
| 679 |
|
|---|
| 680 | if (!$this->fp)
|
|---|
| 681 | {
|
|---|
| 682 | trigger_error('Unable to open file ' . $this->file . ' [' . $fzopen . ' - ' . $this->mode . 'b]');
|
|---|
| 683 | }
|
|---|
| 684 | }
|
|---|
| 685 |
|
|---|
| 686 | /**
|
|---|
| 687 | * Download archive
|
|---|
| 688 | */
|
|---|
| 689 | function download($filename, $download_name = false)
|
|---|
| 690 | {
|
|---|
| 691 | global $phpbb_root_path;
|
|---|
| 692 |
|
|---|
| 693 | if ($download_name === false)
|
|---|
| 694 | {
|
|---|
| 695 | $download_name = $filename;
|
|---|
| 696 | }
|
|---|
| 697 |
|
|---|
| 698 | switch ($this->type)
|
|---|
| 699 | {
|
|---|
| 700 | case '.tar':
|
|---|
| 701 | $mimetype = 'application/x-tar';
|
|---|
| 702 | break;
|
|---|
| 703 |
|
|---|
| 704 | case '.tar.gz':
|
|---|
| 705 | $mimetype = 'application/x-gzip';
|
|---|
| 706 | break;
|
|---|
| 707 |
|
|---|
| 708 | case '.tar.bz2':
|
|---|
| 709 | $mimetype = 'application/x-bzip2';
|
|---|
| 710 | break;
|
|---|
| 711 |
|
|---|
| 712 | default:
|
|---|
| 713 | $mimetype = 'application/octet-stream';
|
|---|
| 714 | break;
|
|---|
| 715 | }
|
|---|
| 716 |
|
|---|
| 717 | header('Pragma: no-cache');
|
|---|
| 718 | header("Content-Type: $mimetype; name=\"$download_name$this->type\"");
|
|---|
| 719 | header("Content-disposition: attachment; filename=$download_name$this->type");
|
|---|
| 720 |
|
|---|
| 721 | $fp = @fopen("{$phpbb_root_path}store/$filename$this->type", 'rb');
|
|---|
| 722 | if ($fp)
|
|---|
| 723 | {
|
|---|
| 724 | while ($buffer = fread($fp, 1024))
|
|---|
| 725 | {
|
|---|
| 726 | echo $buffer;
|
|---|
| 727 | }
|
|---|
| 728 | fclose($fp);
|
|---|
| 729 | }
|
|---|
| 730 | }
|
|---|
| 731 | }
|
|---|
| 732 |
|
|---|
| 733 | ?>
|
|---|
![(please configure the [header_logo] section in trac.ini)](/wow/chrome/site/your_project_logo.png){kind=logo}
