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1.1 misho 1: <?php
2: // stolen from PEAR2_Pyrus_Developer_Creator_Tar by Greg Beaver, the original author, for use in unit tests
3: class corrupt_tarmaker
4: {
5: /**
6: * Path to archive file
7: *
8: * @var string
9: */
10: protected $archive;
11: /**
12: * Temporary stream used for creating the archive
13: *
14: * @var stream
15: */
16: protected $tmp;
17: protected $path;
18: protected $compress;
19: function __construct($path, $compress = 'zlib')
20: {
21: $this->compress = $compress;
22: if ($compress === 'bz2' && !function_exists('bzopen')) {
23: throw new PEAR2_Pyrus_Developer_Creator_Exception(
24: 'bzip2 extension not available');
25: }
26: if ($compress === 'zlib' && !function_exists('gzopen')) {
27: throw new PEAR2_Pyrus_Developer_Creator_Exception(
28: 'zlib extension not available');
29: }
30: $this->path = $path;
31: }
32:
33: /**
34: * save a file inside this package
35: *
36: * This code is modified from Vincent Lascaux's File_Archive
37: * package, which is licensed under the LGPL license.
38: * @param string relative path within the package
39: * @param string|resource file contents or open file handle
40: */
41: function addFile($path, $fileOrStream, $stat = null, $corrupt = null)
42: {
43: clearstatcache();
44: if ($stat === null) {
45: if (is_resource($fileOrStream)) {
46: $stat = fstat($fileOrStream);
47: } else {
48: $stat = array(
49: 'mode' => 0x8000 + 0644,
50: 'uid' => 0,
51: 'gid' => 0,
52: 'size' => strlen($fileOrStream),
53: 'mtime' => time(),
54: );
55: }
56: }
57:
58: $link = null;
59: if ($stat['mode'] & 0xA000 && $corrupt === 'symlink') {
60: $type = 2; // Symbolic Link
61: $link = $fileOrStream;
62: $stat['size'] = 0;
63: $fileOrStream = '';
64: } else if ($stat['mode'] & 0xA000) {
65: $type = 1; // Link
66: $link = $fileOrStream;
67: $stat['size'] = 0;
68: $fileOrStream = '';
69: } else if ($stat['mode'] & 0x4000) {
70: $type = 5; // Directory
71: } else if ($stat['mode'] & 0x8000) {
72: $type = 0; // Regular
73: } else {
74: $type = 9; // Unknown
75: }
76:
77: $filePrefix = '';
78: if (strlen($path) > 255) {
79: throw new Exception(
80: "$path is too long, must be 255 characters or less"
81: );
82: } else if (strlen($path) > 100) {
83: $filePrefix = substr($path, 0, strlen($path)-100);
84: $path = substr($path, -100);
85: }
86:
87: $block = pack('a100a8a8a8a12A12',
88: $path,
89: decoct($stat['mode']),
90: sprintf('%6s ',decoct($stat['uid'])),
91: sprintf('%6s ',decoct($stat['gid'])),
92: sprintf('%11s ',decoct($stat['size'])),
93: sprintf('%11s ',decoct($stat['mtime']))
94: );
95:
96: $blockend = pack('a1a100a6a2a32a32a8a8a155a12',
97: $type,
98: $link,
99: 'ustar',
100: '00',
101: 'Pyrus',
102: 'Pyrus',
103: '',
104: '',
105: $filePrefix,
106: '');
107:
108: $checkheader = array_merge(str_split($block), str_split($blockend));
109: if (!function_exists('_pear2tarchecksum')) {
110: function _pear2tarchecksum($a, $b) {return $a + ord($b);}
111: }
112: $checksum = 256; // 8 * ord(' ');
113: $checksum += array_reduce($checkheader, '_pear2tarchecksum');
114:
115: if ($corrupt === 'checksum') $checksum++;
116: $checksum = pack('a8', sprintf('%6s ', decoct($checksum)));
117:
118: fwrite($this->tmp, $block . $checksum . $blockend, 512);
119: if (is_resource($fileOrStream)) {
120: stream_copy_to_stream($fileOrStream, $this->tmp);
121: if ($stat['size'] % 512) {
122: fwrite($this->tmp, str_repeat("\0", 512 - $stat['size'] % 512));
123: }
124: } else {
125: fwrite($this->tmp, $fileOrStream);
126: if (strlen($fileOrStream) && !isset($link) && strlen($fileOrStream) % 512) {
127: fwrite($this->tmp, str_repeat("\0", 512 - strlen($fileOrStream) % 512));
128: }
129: }
130: }
131:
132: /**
133: * Initialize the package creator
134: */
135: function init()
136: {
137: switch ($this->compress) {
138: case 'zlib' :
139: $this->tmp = gzopen($this->path, 'wb');
140: break;
141: case 'bz2' :
142: $this->tmp = bzopen($this->path, 'w');
143: break;
144: case 'none' :
145: $this->tmp = fopen($this->path, 'wb');
146: break;
147: default :
148: throw new Exception(
149: 'unknown compression type ' . $this->compress);
150: }
151: }
152:
153: /**
154: * Create an internal directory, creating parent directories as needed
155: *
156: * @param string $dir
157: */
158: function mkdir($dir)
159: {
160: $this->addFile($dir, "", array(
161: 'mode' => 0x4000 + 0644,
162: 'uid' => 0,
163: 'gid' => 0,
164: 'size' => 0,
165: 'mtime' => time(),
166: ));
167: }
168:
169: /**
170: * Finish saving the package
171: */
172: function close()
173: {
174: fwrite($this->tmp, pack('a1024', ''));
175: fclose($this->tmp);
176: }
177: }