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comparison e2gallerypro/e2upload/Backend/Assets/getid3/module.archive.tar.php @ 3:3f6b44aa6b35 judyates

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[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
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2:670229c4eb4b 3:3f6b44aa6b35
1 <?php
2 // +----------------------------------------------------------------------+
3 // | PHP version 5 |
4 // +----------------------------------------------------------------------+
5 // | Copyright (c) 2002-2006 James Heinrich, Allan Hansen |
6 // +----------------------------------------------------------------------+
7 // | This source file is subject to version 2 of the GPL license, |
8 // | that is bundled with this package in the file license.txt and is |
9 // | available through the world-wide-web at the following url: |
10 // | http://www.gnu.org/copyleft/gpl.html |
11 // +----------------------------------------------------------------------+
12 // | getID3() - http://getid3.sourceforge.net or http://www.getid3.org |
13 // +----------------------------------------------------------------------+
14 // | Authors: James Heinrich <infoØgetid3*org> |
15 // | Allan Hansen <ahØartemis*dk> |
16 // +----------------------------------------------------------------------+
17 // | module.archive.tar.php |
18 // | module for analyzing TAR files |
19 // | dependencies: NONE |
20 // +----------------------------------------------------------------------+
21 // | Module originally written by Mike Mozolin <teddybearØmail*ru> |
22 // +----------------------------------------------------------------------+
23 //
24 // $Id: module.archive.tar.php,v 1.2 2006/11/02 10:48:00 ah Exp $
25
26
27
28 class getid3_tar extends getid3_handler
29 {
30
31 function Analyze() {
32
33 $info = &$this->getid3->info;
34
35 $info['fileformat'] = 'tar';
36
37 $fp = $this->getid3->fp;
38
39 fseek($fp, 0);
40
41 $unpack_header = 'a100fname/a8mode/a8uid/a8gid/a12size/a12mtime/a8chksum/a1typflag/a100lnkname/a6magic/a2ver/a32uname/a32gname/a8devmaj/a8devmin/a155/prefix';
42
43 $null_512k = str_repeat("\0", 512); // end-of-file marker
44
45 $already_warned = false;
46
47 while (!feof($fp)) {
48
49 $buffer = fread($fp, 512);
50
51 // check the block
52 $checksum = 0;
53 for ($i = 0; $i < 148; $i++) {
54 $checksum += ord(substr($buffer, $i, 1));
55 }
56 for ($i = 148; $i < 156; $i++) {
57 $checksum += ord(' ');
58 }
59 for ($i = 156; $i < 512; $i++) {
60 $checksum += ord(substr($buffer, $i, 1));
61 }
62 $attr = unpack($unpack_header, $buffer);
63 $name = trim(@$attr['fname']);
64 $mode = octdec(trim(@$attr['mode']));
65 $uid = octdec(trim(@$attr['uid']));
66 $gid = octdec(trim(@$attr['gid']));
67 $size = octdec(trim(@$attr['size']));
68 $mtime = octdec(trim(@$attr['mtime']));
69 $chksum = octdec(trim(@$attr['chksum']));
70 $typflag = trim(@$attr['typflag']);
71 $lnkname = trim(@$attr['lnkname']);
72 $magic = trim(@$attr['magic']);
73 $ver = trim(@$attr['ver']);
74 $uname = trim(@$attr['uname']);
75 $gname = trim(@$attr['gname']);
76 $devmaj = octdec(trim(@$attr['devmaj']));
77 $devmin = octdec(trim(@$attr['devmin']));
78 $prefix = trim(@$attr['prefix']);
79
80 // EOF Found
81 if (($checksum == 256) && ($chksum == 0)) {
82 break;
83 }
84
85 // Check if filename if 7bit as spec requires
86 if (!$already_warned) {
87 for ($i = 0; $i < strlen($name); $i++) {
88 if ($name{$i} < chr(32) || $name{$i} > chr(127)) {
89 $this->getid3->warning('Some filenames contains extended characters, which breaks the tar specifation. This is not uncommon, but you will have to handle the character encoding for filenames yourself.');
90 $already_warned = true;
91 break;
92 }
93 }
94 }
95
96 if ($prefix) {
97 $name = $prefix.'/'.$name;
98 }
99 if ((preg_match('#/$#', $name)) && !$name) {
100 $typeflag = 5;
101 }
102
103 // If it's the end of the tar-file...
104 if ($buffer == $null_512k) {
105 break;
106 }
107
108 // Protect against tar-files with garbage at the end
109 if ($name == '') {
110 break;
111 }
112
113 $info['tar']['file_details'][$name] = array (
114 'name' => $name,
115 'mode_raw' => $mode,
116 'mode' => getid3_tar::display_perms($mode),
117 'uid' => $uid,
118 'gid' => $gid,
119 'size' => $size,
120 'mtime' => $mtime,
121 'chksum' => $chksum,
122 'typeflag' => getid3_tar::get_flag_type($typflag),
123 'linkname' => $lnkname,
124 'magic' => $magic,
125 'version' => $ver,
126 'uname' => $uname,
127 'gname' => $gname,
128 'devmajor' => $devmaj,
129 'devminor' => $devmin
130 );
131
132 // Skip the next chunk
133 fseek($fp, $size, SEEK_CUR);
134
135 // Throw away padding
136 if ($size % 512) {
137 fseek($fp, 512 - $diff, SEEK_CUR);
138 }
139
140 }
141 return true;
142 }
143
144
145 // Parses the file mode to file permissions
146 public static function display_perms($mode) {
147
148 // Determine Type
149 if ($mode & 0x1000) {
150 $type='p'; // FIFO pipe
151 }
152 elseif ($mode & 0x2000) {
153 $type='c'; // Character special
154 }
155 elseif ($mode & 0x4000) {
156 $type='d'; // Directory
157 }
158 elseif ($mode & 0x6000) {
159 $type='b'; // Block special
160 }
161 elseif ($mode & 0x8000) {
162 $type='-'; // Regular
163 }
164 elseif ($mode & 0xA000) {
165 $type='l'; // Symbolic Link
166 }
167 elseif ($mode & 0xC000) {
168 $type='s'; // Socket
169 }
170 else {
171 $type='u'; // UNKNOWN
172 }
173
174 // Determine permissions
175 $owner['read'] = (($mode & 00400) ? 'r' : '-');
176 $owner['write'] = (($mode & 00200) ? 'w' : '-');
177 $owner['execute'] = (($mode & 00100) ? 'x' : '-');
178 $group['read'] = (($mode & 00040) ? 'r' : '-');
179 $group['write'] = (($mode & 00020) ? 'w' : '-');
180 $group['execute'] = (($mode & 00010) ? 'x' : '-');
181 $world['read'] = (($mode & 00004) ? 'r' : '-');
182 $world['write'] = (($mode & 00002) ? 'w' : '-');
183 $world['execute'] = (($mode & 00001) ? 'x' : '-');
184
185 // Adjust for SUID, SGID and sticky bit
186 if ($mode & 0x800) {
187 $owner['execute'] = ($owner['execute'] == 'x') ? 's' : 'S';
188 }
189 if ($mode & 0x400) {
190 $group['execute'] = ($group['execute'] == 'x') ? 's' : 'S';
191 }
192 if ($mode & 0x200) {
193 $world['execute'] = ($world['execute'] == 'x') ? 't' : 'T';
194 }
195
196 $s = sprintf('%1s', $type);
197 $s .= sprintf('%1s%1s%1s', $owner['read'], $owner['write'], $owner['execute']);
198 $s .= sprintf('%1s%1s%1s', $group['read'], $group['write'], $group['execute']);
199 $s .= sprintf('%1s%1s%1s'."\n", $world['read'], $world['write'], $world['execute']);
200
201 return $s;
202 }
203
204
205 // Converts the file type
206 public static function get_flag_type($typflag) {
207
208 static $flag_types = array (
209 '0' => 'LF_NORMAL',
210 '1' => 'LF_LINK',
211 '2' => 'LF_SYNLINK',
212 '3' => 'LF_CHR',
213 '4' => 'LF_BLK',
214 '5' => 'LF_DIR',
215 '6' => 'LF_FIFO',
216 '7' => 'LF_CONFIG',
217 'D' => 'LF_DUMPDIR',
218 'K' => 'LF_LONGLINK',
219 'L' => 'LF_LONGNAME',
220 'M' => 'LF_MULTIVOL',
221 'N' => 'LF_NAMES',
222 'S' => 'LF_SPARSE',
223 'V' => 'LF_VOLHDR'
224 );
225
226 return @$flag_types[$typflag];
227 }
228
229 }
230
231 ?>