Mercurial > judyates
diff e2gallerypro/e2upload/Backend/Assets/getid3/module.archive.gzip.php @ 3:3f6b44aa6b35 judyates
[svn r4] added ability to buy stuff, from a Prints page, but it doesn't work well with the css, and it also has not been fitted into the perl make system.
| author | rlm |
|---|---|
| date | Mon, 22 Feb 2010 08:02:39 -0500 |
| parents | |
| children |
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1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000 1.2 +++ b/e2gallerypro/e2upload/Backend/Assets/getid3/module.archive.gzip.php Mon Feb 22 08:02:39 2010 -0500 1.3 @@ -0,0 +1,296 @@ 1.4 +<?php 1.5 +// +----------------------------------------------------------------------+ 1.6 +// | PHP version 5 | 1.7 +// +----------------------------------------------------------------------+ 1.8 +// | Copyright (c) 2002-2006 James Heinrich, Allan Hansen | 1.9 +// +----------------------------------------------------------------------+ 1.10 +// | This source file is subject to version 2 of the GPL license, | 1.11 +// | that is bundled with this package in the file license.txt and is | 1.12 +// | available through the world-wide-web at the following url: | 1.13 +// | http://www.gnu.org/copyleft/gpl.html | 1.14 +// +----------------------------------------------------------------------+ 1.15 +// | getID3() - http://getid3.sourceforge.net or http://www.getid3.org | 1.16 +// +----------------------------------------------------------------------+ 1.17 +// | Authors: James Heinrich <infoØgetid3*org> | 1.18 +// | Allan Hansen <ahØartemis*dk> | 1.19 +// +----------------------------------------------------------------------+ 1.20 +// | module.archive.gzip.php | 1.21 +// | module for analyzing GZIP files | 1.22 +// | dependencies: PHP compiled with zlib support (optional) | 1.23 +// +----------------------------------------------------------------------+ 1.24 +// | Module originally written by Mike Mozolin <teddybearØmail*ru> | 1.25 +// +----------------------------------------------------------------------+ 1.26 +// 1.27 +// $Id: module.archive.gzip.php,v 1.4 2006/12/04 16:00:35 ah Exp $ 1.28 + 1.29 + 1.30 + 1.31 +class getid3_gzip extends getid3_handler 1.32 +{ 1.33 + 1.34 + // public: Optional file list - disable for speed. 1.35 + public $option_gzip_parse_contents = true; // decode gzipped files, if possible, and parse recursively (.tar.gz for example) 1.36 + 1.37 + 1.38 + // Reads the gzip-file 1.39 + function Analyze() { 1.40 + 1.41 + $info = &$this->getid3->info; 1.42 + 1.43 + $info['fileformat'] = 'gzip'; 1.44 + 1.45 + $start_length = 10; 1.46 + $unpack_header = 'a1id1/a1id2/a1cmethod/a1flags/a4mtime/a1xflags/a1os'; 1.47 + 1.48 + //+---+---+---+---+---+---+---+---+---+---+ 1.49 + //|ID1|ID2|CM |FLG| MTIME |XFL|OS | 1.50 + //+---+---+---+---+---+---+---+---+---+---+ 1.51 + 1.52 + @fseek($this->getid3->fp, 0); 1.53 + $buffer = @fread($this->getid3->fp, $info['filesize']); 1.54 + 1.55 + $arr_members = explode("\x1F\x8B\x08", $buffer); 1.56 + 1.57 + while (true) { 1.58 + $is_wrong_members = false; 1.59 + $num_members = intval(count($arr_members)); 1.60 + for ($i = 0; $i < $num_members; $i++) { 1.61 + if (strlen($arr_members[$i]) == 0) { 1.62 + continue; 1.63 + } 1.64 + $buf = "\x1F\x8B\x08".$arr_members[$i]; 1.65 + 1.66 + $attr = unpack($unpack_header, substr($buf, 0, $start_length)); 1.67 + if (!$this->get_os_type(ord($attr['os']))) { 1.68 + 1.69 + // Merge member with previous if wrong OS type 1.70 + $arr_members[$i - 1] .= $buf; 1.71 + $arr_members[$i] = ''; 1.72 + $is_wrong_members = true; 1.73 + continue; 1.74 + } 1.75 + } 1.76 + if (!$is_wrong_members) { 1.77 + break; 1.78 + } 1.79 + } 1.80 + 1.81 + $fpointer = 0; 1.82 + $idx = 0; 1.83 + for ($i = 0; $i < $num_members; $i++) { 1.84 + if (strlen($arr_members[$i]) == 0) { 1.85 + continue; 1.86 + } 1.87 + $info_gzip_member_header_idx = &$info['gzip']['member_header'][++$idx]; 1.88 + 1.89 + $buff = "\x1F\x8B\x08".$arr_members[$i]; 1.90 + 1.91 + $attr = unpack($unpack_header, substr($buff, 0, $start_length)); 1.92 + $info_gzip_member_header_idx['filemtime'] = getid3_lib::LittleEndian2Int($attr['mtime']); 1.93 + $info_gzip_member_header_idx['raw']['id1'] = ord($attr['cmethod']); 1.94 + $info_gzip_member_header_idx['raw']['id2'] = ord($attr['cmethod']); 1.95 + $info_gzip_member_header_idx['raw']['cmethod'] = ord($attr['cmethod']); 1.96 + $info_gzip_member_header_idx['raw']['os'] = ord($attr['os']); 1.97 + $info_gzip_member_header_idx['raw']['xflags'] = ord($attr['xflags']); 1.98 + $info_gzip_member_header_idx['raw']['flags'] = ord($attr['flags']); 1.99 + 1.100 + $info_gzip_member_header_idx['flags']['crc16'] = (bool) ($info_gzip_member_header_idx['raw']['flags'] & 0x02); 1.101 + $info_gzip_member_header_idx['flags']['extra'] = (bool) ($info_gzip_member_header_idx['raw']['flags'] & 0x04); 1.102 + $info_gzip_member_header_idx['flags']['filename'] = (bool) ($info_gzip_member_header_idx['raw']['flags'] & 0x08); 1.103 + $info_gzip_member_header_idx['flags']['comment'] = (bool) ($info_gzip_member_header_idx['raw']['flags'] & 0x10); 1.104 + 1.105 + $info_gzip_member_header_idx['compression'] = $this->get_xflag_type($info_gzip_member_header_idx['raw']['xflags']); 1.106 + 1.107 + $info_gzip_member_header_idx['os'] = $this->get_os_type($info_gzip_member_header_idx['raw']['os']); 1.108 + if (!$info_gzip_member_header_idx['os']) { 1.109 + $info['error'][] = 'Read error on gzip file'; 1.110 + return false; 1.111 + } 1.112 + 1.113 + $fpointer = 10; 1.114 + $arr_xsubfield = array (); 1.115 + 1.116 + // bit 2 - FLG.FEXTRA 1.117 + //+---+---+=================================+ 1.118 + //| XLEN |...XLEN bytes of "extra field"...| 1.119 + //+---+---+=================================+ 1.120 + 1.121 + if ($info_gzip_member_header_idx['flags']['extra']) { 1.122 + $w_xlen = substr($buff, $fpointer, 2); 1.123 + $xlen = getid3_lib::LittleEndian2Int($w_xlen); 1.124 + $fpointer += 2; 1.125 + 1.126 + $info_gzip_member_header_idx['raw']['xfield'] = substr($buff, $fpointer, $xlen); 1.127 + 1.128 + // Extra SubFields 1.129 + //+---+---+---+---+==================================+ 1.130 + //|SI1|SI2| LEN |... LEN bytes of subfield data ...| 1.131 + //+---+---+---+---+==================================+ 1.132 + 1.133 + $idx = 0; 1.134 + while (true) { 1.135 + if ($idx >= $xlen) { 1.136 + break; 1.137 + } 1.138 + $si1 = ord(substr($buff, $fpointer + $idx++, 1)); 1.139 + $si2 = ord(substr($buff, $fpointer + $idx++, 1)); 1.140 + if (($si1 == 0x41) && ($si2 == 0x70)) { 1.141 + $w_xsublen = substr($buff, $fpointer+$idx, 2); 1.142 + $xsublen = getid3_lib::LittleEndian2Int($w_xsublen); 1.143 + $idx += 2; 1.144 + $arr_xsubfield[] = substr($buff, $fpointer+$idx, $xsublen); 1.145 + $idx += $xsublen; 1.146 + } else { 1.147 + break; 1.148 + } 1.149 + } 1.150 + $fpointer += $xlen; 1.151 + } 1.152 + 1.153 + // bit 3 - FLG.FNAME 1.154 + //+=========================================+ 1.155 + //|...original file name, zero-terminated...| 1.156 + //+=========================================+ 1.157 + // GZIP files may have only one file, with no filename, so assume original filename is current filename without .gz 1.158 + 1.159 + $info_gzip_member_header_idx['filename'] = eregi_replace('.gz$', '', @$info['filename']); 1.160 + if ($info_gzip_member_header_idx['flags']['filename']) { 1.161 + while (true) { 1.162 + if (ord($buff[$fpointer]) == 0) { 1.163 + $fpointer++; 1.164 + break; 1.165 + } 1.166 + $info_gzip_member_header_idx['filename'] .= $buff[$fpointer]; 1.167 + $fpointer++; 1.168 + } 1.169 + } 1.170 + 1.171 + // bit 4 - FLG.FCOMMENT 1.172 + //+===================================+ 1.173 + //|...file comment, zero-terminated...| 1.174 + //+===================================+ 1.175 + 1.176 + if ($info_gzip_member_header_idx['flags']['comment']) { 1.177 + while (true) { 1.178 + if (ord($buff[$fpointer]) == 0) { 1.179 + $fpointer++; 1.180 + break; 1.181 + } 1.182 + $info_gzip_member_header_idx['comment'] .= $buff[$fpointer]; 1.183 + $fpointer++; 1.184 + } 1.185 + } 1.186 + 1.187 + // bit 1 - FLG.FHCRC 1.188 + //+---+---+ 1.189 + //| CRC16 | 1.190 + //+---+---+ 1.191 + 1.192 + if ($info_gzip_member_header_idx['flags']['crc16']) { 1.193 + $w_crc = substr($buff, $fpointer, 2); 1.194 + $info_gzip_member_header_idx['crc16'] = getid3_lib::LittleEndian2Int($w_crc); 1.195 + $fpointer += 2; 1.196 + } 1.197 + 1.198 + // bit 0 - FLG.FTEXT 1.199 + //if ($info_gzip_member_header_idx['raw']['flags'] & 0x01) { 1.200 + // Ignored... 1.201 + //} 1.202 + // bits 5, 6, 7 - reserved 1.203 + 1.204 + $info_gzip_member_header_idx['crc32'] = getid3_lib::LittleEndian2Int(substr($buff, strlen($buff) - 8, 4)); 1.205 + $info_gzip_member_header_idx['filesize'] = getid3_lib::LittleEndian2Int(substr($buff, strlen($buff) - 4)); 1.206 + 1.207 + if ($this->option_gzip_parse_contents) { 1.208 + 1.209 + // Try to inflate GZip 1.210 + 1.211 + if (!function_exists('gzinflate')) { 1.212 + $this->getid3->warning('PHP does not have zlib support - contents not parsed.'); 1.213 + return true; 1.214 + } 1.215 + 1.216 + $csize = 0; 1.217 + $inflated = ''; 1.218 + $chkcrc32 = ''; 1.219 + 1.220 + $cdata = substr($buff, $fpointer); 1.221 + $cdata = substr($cdata, 0, strlen($cdata) - 8); 1.222 + $csize = strlen($cdata); 1.223 + $inflated = gzinflate($cdata); 1.224 + 1.225 + // Calculate CRC32 for inflated content 1.226 + $info_gzip_member_header_idx['crc32_valid'] = (bool) (sprintf('%u', crc32($inflated)) == $info_gzip_member_header_idx['crc32']); 1.227 + 1.228 + 1.229 + //// Analyse contents 1.230 + 1.231 + // write content to temp file 1.232 + if (($temp_file_name = tempnam('*', 'getID3')) === false) { 1.233 + throw new getid3_exception('Unable to create temporary file.'); 1.234 + } 1.235 + 1.236 + if ($tmp = fopen($temp_file_name, 'wb')) { 1.237 + fwrite($tmp, $inflated); 1.238 + fclose($tmp); 1.239 + 1.240 + // clone getid3 - we want same settings 1.241 + $clone = clone $this->getid3; 1.242 + unset($clone->info); 1.243 + try { 1.244 + $clone->Analyze($temp_file_name); 1.245 + $info_gzip_member_header_idx['parsed_content'] = $clone->info; 1.246 + } 1.247 + catch (getid3_exception $e) { 1.248 + // unable to parse contents 1.249 + } 1.250 + 1.251 + unlink($temp_file_name); 1.252 + } 1.253 + 1.254 + // Unknown/unhandled format 1.255 + else { 1.256 + 1.257 + } 1.258 + } 1.259 + } 1.260 + return true; 1.261 + } 1.262 + 1.263 + 1.264 + // Converts the OS type 1.265 + public static function get_os_type($key) { 1.266 + static $os_type = array ( 1.267 + '0' => 'FAT filesystem (MS-DOS, OS/2, NT/Win32)', 1.268 + '1' => 'Amiga', 1.269 + '2' => 'VMS (or OpenVMS)', 1.270 + '3' => 'Unix', 1.271 + '4' => 'VM/CMS', 1.272 + '5' => 'Atari TOS', 1.273 + '6' => 'HPFS filesystem (OS/2, NT)', 1.274 + '7' => 'Macintosh', 1.275 + '8' => 'Z-System', 1.276 + '9' => 'CP/M', 1.277 + '10' => 'TOPS-20', 1.278 + '11' => 'NTFS filesystem (NT)', 1.279 + '12' => 'QDOS', 1.280 + '13' => 'Acorn RISCOS', 1.281 + '255' => 'unknown' 1.282 + ); 1.283 + return @$os_type[$key]; 1.284 + } 1.285 + 1.286 + 1.287 + // Converts the eXtra FLags 1.288 + public static function get_xflag_type($key) { 1.289 + static $xflag_type = array ( 1.290 + '0' => 'unknown', 1.291 + '2' => 'maximum compression', 1.292 + '4' => 'fastest algorithm' 1.293 + ); 1.294 + return @$xflag_type[$key]; 1.295 + } 1.296 + 1.297 +} 1.298 + 1.299 +?> 1.300 \ No newline at end of file