~azzar1/unity/add-show-desktop-key

443 by dcoles
Added Forum application along with unmodifed version of phpBB3 "Olympus" 3.0.0
1
<?php
2
/**
3
*
4
* @package phpBB3
5
* @version $Id: functions_compress.php,v 1.47 2007/10/05 14:30:10 acydburn Exp $
6
* @copyright (c) 2005 phpBB Group
7
* @license http://opensource.org/licenses/gpl-license.php GNU Public License
8
*
9
*/
10
11
/**
12
* @ignore
13
*/
14
if (!defined('IN_PHPBB'))
15
{
16
	exit;
17
}
18
19
/**
20
* Class for handling archives (compression/decompression)
21
* @package phpBB3
22
*/
23
class compress
24
{
25
	var $fp = 0;
26
27
	/**
28
	* Add file to archive
29
	*/
30
	function add_file($src, $src_rm_prefix = '', $src_add_prefix = '', $skip_files = '')
31
	{
32
		global $phpbb_root_path;
33
34
		$skip_files = explode(',', $skip_files);
35
36
		// Remove rm prefix from src path
37
		$src_path = ($src_rm_prefix) ? preg_replace('#^(' . preg_quote($src_rm_prefix, '#') . ')#', '', $src) : $src;
38
		// Add src prefix
39
		$src_path = ($src_add_prefix) ? ($src_add_prefix . ((substr($src_add_prefix, -1) != '/') ? '/' : '') . $src_path) : $src_path;
40
		// Remove initial "/" if present
41
		$src_path = (substr($src_path, 0, 1) == '/') ? substr($src_path, 1) : $src_path;
42
43
		if (is_file($phpbb_root_path . $src))
44
		{
45
			$this->data($src_path, file_get_contents("$phpbb_root_path$src"), false, stat("$phpbb_root_path$src"));
46
		}
47
		else if (is_dir($phpbb_root_path . $src))
48
		{
49
			// Clean up path, add closing / if not present
50
			$src_path = ($src_path && substr($src_path, -1) != '/') ? $src_path . '/' : $src_path;
51
52
			$filelist = array();
53
			$filelist = filelist("$phpbb_root_path$src", '', '*');
54
			krsort($filelist);
55
56
			if ($src_path)
57
			{
58
				$this->data($src_path, '', true, stat("$phpbb_root_path$src"));
59
			}
60
61
			foreach ($filelist as $path => $file_ary)
62
			{
63
				if ($path)
64
				{
65
					// Same as for src_path
66
					$path = (substr($path, 0, 1) == '/') ? substr($path, 1) : $path;
67
					$path = ($path && substr($path, -1) != '/') ? $path . '/' : $path;
68
69
					$this->data("$src_path$path", '', true, stat("$phpbb_root_path$src$path"));
70
				}
71
72
				foreach ($file_ary as $file)
73
				{
74
					if (in_array($path . $file, $skip_files))
75
					{
76
						continue;
77
					}
78
79
					$this->data("$src_path$path$file", file_get_contents("$phpbb_root_path$src$path$file"), false, stat("$phpbb_root_path$src$path$file"));
80
				}
81
			}
82
		}
83
84
		return true;
85
	}
86
87
	/**
88
	* Add custom file (the filepath will not be adjusted)
89
	*/
90
	function add_custom_file($src, $filename)
91
	{
92
		$this->data($filename, file_get_contents($src), false, stat($src));
93
		return true;
94
	}
95
96
	/**
97
	* Add file data
98
	*/
99
	function add_data($src, $name)
100
	{
101
		$stat = array();
102
		$stat[2] = 436; //384
103
		$stat[4] = $stat[5] = 0;
104
		$stat[7] = strlen($src);
105
		$stat[9] = time();
106
		$this->data($name, $src, false, $stat);
107
		return true;
108
	}
109
110
	/**
111
	* Return available methods
112
	*/
113
	function methods()
114
	{
115
		$methods = array('.tar');
116
		$available_methods = array('.tar.gz' => 'zlib', '.tar.bz2' => 'bz2', '.zip' => 'zlib');
117
118
		foreach ($available_methods as $type => $module)
119
		{
120
			if (!@extension_loaded($module))
121
			{
122
				continue;
123
			}
124
			$methods[] = $type;
125
		}
126
127
		return $methods;
128
	}
129
}
130
131
/**
132
* Zip creation class from phpMyAdmin 2.3.0 (c) Tobias Ratschiller, Olivier Müller, Loïc Chapeaux,
133
* Marc Delisle, http://www.phpmyadmin.net/
134
*
135
* Zip extraction function by Alexandre Tedeschi, alexandrebr at gmail dot com
136
*
137
* Modified extensively by psoTFX and DavidMJ, (c) phpBB Group, 2003
138
*
139
* Based on work by Eric Mueller and Denis125
140
* Official ZIP file format: http://www.pkware.com/appnote.txt
141
*
142
* @package phpBB3
143
*/
144
class compress_zip extends compress
145
{
146
	var $datasec = array();
147
	var $ctrl_dir = array();
148
	var $eof_cdh = "\x50\x4b\x05\x06\x00\x00\x00\x00";
149
150
	var $old_offset = 0;
151
	var $datasec_len = 0;
152
153
	/**
154
	* Constructor
155
	*/
156
	function compress_zip($mode, $file)
157
	{
158
		return $this->fp = @fopen($file, $mode . 'b');
159
	}
160
161
	/**
162
	* Convert unix to dos time
163
	*/
164
	function unix_to_dos_time($time)
165
	{
166
		$timearray = (!$time) ? getdate() : getdate($time);
167
168
		if ($timearray['year'] < 1980)
169
		{
170
			$timearray['year'] = 1980;
171
			$timearray['mon'] = $timearray['mday'] = 1;
172
			$timearray['hours'] = $timearray['minutes'] = $timearray['seconds'] = 0;
173
		}
174
175
		return (($timearray['year'] - 1980) << 25) | ($timearray['mon'] << 21) | ($timearray['mday'] << 16) | ($timearray['hours'] << 11) | ($timearray['minutes'] << 5) | ($timearray['seconds'] >> 1);
176
	}
177
178
	/**
179
	* Extract archive
180
	*/
181
	function extract($dst)
182
	{		
183
		// Loop the file, looking for files and folders
184
		$dd_try = false;
185
		rewind($this->fp);
186
187
		while (!feof($this->fp))
188
		{
189
			// Check if the signature is valid...
190
			$signature = fread($this->fp, 4);
191
192
			switch ($signature)
193
			{
194
				// 'Local File Header'
195
				case "\x50\x4b\x03\x04":
196
					// Lets get everything we need.
197
					// We don't store the version needed to extract, the general purpose bit flag or the date and time fields
198
					$data = unpack("@4/vc_method/@10/Vcrc/Vc_size/Vuc_size/vname_len/vextra_field", fread($this->fp, 26));
199
					$file_name = fread($this->fp, $data['name_len']); // filename
200
201
					if ($data['extra_field'])
202
					{
203
						fread($this->fp, $data['extra_field']); // extra field
204
					}
205
206
					$target_filename = "$dst$file_name";
207
208
					if (!$data['uc_size'] && !$data['crc'] && substr($file_name, -1, 1) == '/')
209
					{
210
						if (!is_dir($target_filename))
211
						{
212
							$str = '';
213
							$folders = explode('/', $target_filename);
214
215
							// Create and folders and subfolders if they do not exist
216
							foreach ($folders as $folder)
217
							{
218
								$str = (!empty($str)) ? $str . '/' . $folder : $folder;
219
								if (!is_dir($str))
220
								{
221
									if (!@mkdir($str, 0777))
222
									{
223
										trigger_error("Could not create directory $folder");
224
									}
225
									@chmod($str, 0777);
226
								}
227
							}
228
						}
229
						// This is a directory, we are not writting files
230
						continue;
231
					}
232
					else
233
					{
234
						// Some archivers are punks, they don't don't include folders in their archives!
235
						$str = '';
236
						$folders = explode('/', pathinfo($target_filename, PATHINFO_DIRNAME));
237
238
						// Create and folders and subfolders if they do not exist
239
						foreach ($folders as $folder)
240
						{
241
							$str = (!empty($str)) ? $str . '/' . $folder : $folder;
242
							if (!is_dir($str))
243
							{
244
								if (!@mkdir($str, 0777))
245
								{
246
									trigger_error("Could not create directory $folder");
247
								}
248
								@chmod($str, 0777);
249
							}
250
						}
251
					}
252
253
					if (!$data['uc_size'])
254
					{
255
						$content = '';
256
					}
257
					else
258
					{
259
						$content = fread($this->fp, $data['c_size']);
260
					}
261
262
					$fp = fopen($target_filename, "w");
263
264
					switch ($data['c_method'])
265
					{
266
						case 0:
267
							// Not compressed
268
							fwrite($fp, $content);
269
						break;
270
					
271
						case 8:
272
							// Deflate
273
							fwrite($fp, gzinflate($content, $data['uc_size']));
274
						break;
275
276
						case 12:
277
							// Bzip2
278
							fwrite($fp, bzdecompress($content));
279
						break;
280
					}
281
					
282
					fclose($fp);
283
				break;
284
285
				// We hit the 'Central Directory Header', we can stop because nothing else in here requires our attention
286
				// 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
287
				case "\x50\x4b\x01\x02":
288
				// This case should simply never happen.. but it does exist..
289
				case "\x50\x4b\x05\x06":
290
				break 2;
291
				
292
				// 'Packed to Removable Disk', ignore it and look for the next signature...
293
				case 'PK00':
294
				continue 2;
295
				
296
				// We have encountered a header that is weird. Lets look for better data...
297
				default:
298
					if (!$dd_try)
299
					{
300
						// Unexpected header. Trying to detect wrong placed 'Data Descriptor';
301
						$dd_try = true;
302
						fseek($this->fp, 8, SEEK_CUR); // Jump over 'crc-32'(4) 'compressed-size'(4), 'uncompressed-size'(4)
303
						continue 2;
304
					}
305
					trigger_error("Unexpected header, ending loop");
306
				break 2;
307
			}
308
309
			$dd_try = false;
310
		}
311
	}
312
313
	/**
314
	* Close archive
315
	*/
316
	function close()
317
	{
318
		// Write out central file directory and footer ... if it exists
319
		if (sizeof($this->ctrl_dir))
320
		{
321
			fwrite($this->fp, $this->file());
322
		}
323
		fclose($this->fp);
324
	}
325
326
	/**
327
	* Create the structures ... note we assume version made by is MSDOS
328
	*/
329
	function data($name, $data, $is_dir = false, $stat)
330
	{
331
		$name = str_replace('\\', '/', $name);
332
333
		$hexdtime = pack('V', $this->unix_to_dos_time($stat[9]));
334
335
		if ($is_dir)
336
		{
337
			$unc_len = $c_len = $crc = 0;
338
			$zdata = '';
339
			$var_ext = 10;
340
		}
341
		else
342
		{
343
			$unc_len = strlen($data);
344
			$crc = crc32($data);
345
			$zdata = gzdeflate($data);
346
			$c_len = strlen($zdata);
347
			$var_ext = 20;
348
349
			// Did we compress? No, then use data as is
350
			if ($c_len >= $unc_len)
351
			{
352
				$zdata = $data;
353
				$c_len = $unc_len;
354
				$var_ext = 10;
355
			}
356
		}
357
		unset($data);
358
359
		// If we didn't compress set method to store, else deflate
360
		$c_method = ($c_len == $unc_len) ? "\x00\x00" : "\x08\x00";
361
362
		// Are we a file or a directory? Set archive for file
363
		$attrib = ($is_dir) ? 16 : 32;
364
365
		// File Record Header
366
		$fr = "\x50\x4b\x03\x04";		// Local file header 4bytes
367
		$fr .= pack('v', $var_ext);		// ver needed to extract 2bytes
368
		$fr .= "\x00\x00";				// gen purpose bit flag 2bytes
369
		$fr .= $c_method;				// compression method 2bytes
370
		$fr .= $hexdtime;				// last mod time and date 2+2bytes
371
		$fr .= pack('V', $crc);			// crc32 4bytes
372
		$fr .= pack('V', $c_len);		// compressed filesize 4bytes
373
		$fr .= pack('V', $unc_len);		// uncompressed filesize 4bytes
374
		$fr .= pack('v', strlen($name));// length of filename 2bytes
375
376
		$fr .= pack('v', 0);			// extra field length 2bytes
377
		$fr .= $name;
378
		$fr .= $zdata;
379
		unset($zdata);
380
381
		$this->datasec_len += strlen($fr);
382
383
		// Add data to file ... by writing data out incrementally we save some memory
384
		fwrite($this->fp, $fr);
385
		unset($fr);
386
387
		// Central Directory Header
388
		$cdrec = "\x50\x4b\x01\x02";		// header 4bytes
389
		$cdrec .= "\x00\x00";				// version made by
390
		$cdrec .= pack('v', $var_ext);		// version needed to extract
391
		$cdrec .= "\x00\x00";				// gen purpose bit flag
392
		$cdrec .= $c_method;				// compression method
393
		$cdrec .= $hexdtime;				// last mod time & date
394
		$cdrec .= pack('V', $crc);			// crc32
395
		$cdrec .= pack('V', $c_len);		// compressed filesize
396
		$cdrec .= pack('V', $unc_len);		// uncompressed filesize
397
		$cdrec .= pack('v', strlen($name));	// length of filename
398
		$cdrec .= pack('v', 0);				// extra field length
399
		$cdrec .= pack('v', 0);				// file comment length
400
		$cdrec .= pack('v', 0);				// disk number start
401
		$cdrec .= pack('v', 0);				// internal file attributes
402
		$cdrec .= pack('V', $attrib);		// external file attributes
403
		$cdrec .= pack('V', $this->old_offset);	// relative offset of local header
404
		$cdrec .= $name;
405
406
		// Save to central directory
407
		$this->ctrl_dir[] = $cdrec;
408
409
		$this->old_offset = $this->datasec_len;
410
	}
411
412
	/**
413
	* file
414
	*/
415
	function file()
416
	{
417
		$ctrldir = implode('', $this->ctrl_dir);
418
419
		return $ctrldir . $this->eof_cdh .
420
			pack('v', sizeof($this->ctrl_dir)) .	// total # of entries "on this disk"
421
			pack('v', sizeof($this->ctrl_dir)) .	// total # of entries overall
422
			pack('V', strlen($ctrldir)) .			// size of central dir
423
			pack('V', $this->datasec_len) .			// offset to start of central dir
424
			"\x00\x00";								// .zip file comment length
425
	}
426
427
	/**
428
	* Download archive
429
	*/
430
	function download($filename, $download_name = false)
431
	{
432
		global $phpbb_root_path;
433
434
		if ($download_name === false)
435
		{
436
			$download_name = $filename;
437
		}
438
439
		$mimetype = 'application/zip';
440
441
		header('Pragma: no-cache');
442
		header("Content-Type: $mimetype; name=\"$download_name.zip\"");
443
		header("Content-disposition: attachment; filename=$download_name.zip");
444
445
		$fp = @fopen("{$phpbb_root_path}store/$filename.zip", 'rb');
446
		if ($fp)
447
		{
448
			while ($buffer = fread($fp, 1024))
449
			{
450
				echo $buffer;
451
			}
452
			fclose($fp);
453
		}
454
	}
455
}
456
457
/**
458
* Tar/tar.gz compression routine
459
* Header/checksum creation derived from tarfile.pl, (c) Tom Horsley, 1994
460
*
461
* @package phpBB3
462
*/
463
class compress_tar extends compress
464
{
465
	var $isgz = false;
466
	var $isbz = false;
467
	var $filename = '';
468
	var $mode = '';
469
	var $type = '';
470
	var $wrote = false;
471
472
	/**
473
	* Constructor
474
	*/
475
	function compress_tar($mode, $file, $type = '')
476
	{
477
		$type = (!$type) ? $file : $type;
478
		$this->isgz = (strpos($type, '.tar.gz') !== false || strpos($type, '.tgz') !== false) ? true : false;
479
		$this->isbz = (strpos($type, '.tar.bz2') !== false) ? true : false;
480
481
		$this->mode = &$mode;
482
		$this->file = &$file;
483
		$this->type = &$type;
484
		$this->open();
485
	}
486
487
	/**
488
	* Extract archive
489
	*/
490
	function extract($dst)
491
	{
492
		$fzread = ($this->isbz && function_exists('bzread')) ? 'bzread' : (($this->isgz && @extension_loaded('zlib')) ? 'gzread' : 'fread');
493
494
		// Run through the file and grab directory entries
495
		while ($buffer = $fzread($this->fp, 512))
496
		{
497
			$tmp = unpack('A6magic', substr($buffer, 257, 6));
498
499
			if (trim($tmp['magic']) == 'ustar')
500
			{
501
				$tmp = unpack('A100name', $buffer);
502
				$filename = trim($tmp['name']);
503
504
				$tmp = unpack('Atype', substr($buffer, 156, 1));
505
				$filetype = (int) trim($tmp['type']);
506
507
				$tmp = unpack('A12size', substr($buffer, 124, 12));
508
				$filesize = octdec((int) trim($tmp['size']));
509
510
				if ($filetype == 5)
511
				{
512
					if (!is_dir("$dst$filename"))
513
					{
514
						$str = '';
515
						$folders = explode('/', "$dst$filename");
516
517
						// Create and folders and subfolders if they do not exist
518
						foreach ($folders as $folder)
519
						{
520
							$str = (!empty($str)) ? $str . '/' . $folder : $folder;
521
							if (!is_dir($str))
522
							{
523
								if (!@mkdir($str, 0777))
524
								{
525
									trigger_error("Could not create directory $folder");
526
								}
527
								@chmod($str, 0777);
528
							}
529
						}
530
					}
531
				}
532
				else if ($filesize != 0 && ($filetype == 0 || $filetype == "\0"))
533
				{
534
					// Write out the files
535
					if (!($fp = fopen("$dst$filename", 'wb')))
536
					{
537
						trigger_error("Couldn't create file $filename");
538
					}
539
					@chmod("$dst$filename", 0777);
540
541
					// Grab the file contents
542
					fwrite($fp, $fzread($this->fp, ($filesize + 511) &~ 511), $filesize);
543
					fclose($fp);
544
				}
545
			}
546
		}
547
	}
548
549
	/**
550
	* Close archive
551
	*/
552
	function close()
553
	{
554
		$fzclose = ($this->isbz && function_exists('bzclose')) ? 'bzclose' : (($this->isgz && @extension_loaded('zlib')) ? 'gzclose' : 'fclose');
555
556
		if ($this->wrote)
557
		{
558
			$fzwrite = ($this->isbz && function_exists('bzwrite')) ? 'bzwrite' : (($this->isgz && @extension_loaded('zlib')) ? 'gzwrite' : 'fwrite');
559
560
			// The end of a tar archive ends in two records of all NULLs (1024 bytes of \0)
561
			$fzwrite($this->fp, str_repeat("\0", 1024));
562
		}
563
564
		$fzclose($this->fp);
565
	}
566
567
	/**
568
	* Create the structures
569
	*/
570
	function data($name, $data, $is_dir = false, $stat)
571
	{
572
		$this->wrote = true;
573
		$fzwrite = 	($this->isbz && function_exists('bzwrite')) ? 'bzwrite' : (($this->isgz && @extension_loaded('zlib')) ? 'gzwrite' : 'fwrite');
574
575
		$typeflag = ($is_dir) ? '5' : '';
576
577
		// This is the header data, it contains all the info we know about the file or folder that we are about to archive
578
		$header = '';
579
		$header .= pack('a100', $name);						// file name
580
		$header .= pack('a8', sprintf("%07o", $stat[2]));	// file mode
581
		$header .= pack('a8', sprintf("%07o", $stat[4]));	// owner id
582
		$header .= pack('a8', sprintf("%07o", $stat[5]));	// group id
583
		$header .= pack('a12', sprintf("%011o", $stat[7]));	// file size
584
		$header .= pack('a12', sprintf("%011o", $stat[9]));	// last mod time
585
586
		// Checksum
587
		$checksum = 0;
588
		for ($i = 0; $i < 148; $i++)
589
		{
590
			$checksum += ord($header[$i]);
591
		}
592
593
		// 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
594
		$checksum += 2415 + (($is_dir) ? 53 : 0);
595
596
		$header .= pack('a8', sprintf("%07o", $checksum));	// checksum
597
		$header .= pack('a1', $typeflag);					// link indicator
598
		$header .= pack('a100', '');						// name of linked file
599
		$header .= pack('a6', 'ustar');						// ustar indicator
600
		$header .= pack('a2', '00');						// ustar version
601
		$header .= pack('a32', 'Unknown');					// owner name
602
		$header .= pack('a32', 'Unknown');					// group name
603
		$header .= pack('a8', '');							// device major number
604
		$header .= pack('a8', '');							// device minor number
605
		$header .= pack('a155', '');						// filename prefix
606
		$header .= pack('a12', '');							// end
607
608
		// This writes the entire file in one shot. Header, followed by data and then null padded to a multiple of 512
609
		$fzwrite($this->fp, $header . (($stat[7] !== 0 && !$is_dir) ? $data . str_repeat("\0", (($stat[7] + 511) &~ 511) - $stat[7]) : ''));
610
		unset($data);
611
	}
612
613
	/**
614
	* Open archive
615
	*/
616
	function open()
617
	{
618
		$fzopen = ($this->isbz && function_exists('bzopen')) ? 'bzopen' : (($this->isgz && @extension_loaded('zlib')) ? 'gzopen' : 'fopen');
619
		$this->fp = @$fzopen($this->file, $this->mode . (($fzopen == 'bzopen') ? '' : 'b') . (($fzopen == 'gzopen') ? '9' : ''));
620
621
		if (!$this->fp)
622
		{
623
			trigger_error('Unable to open file ' . $this->file . ' [' . $fzopen . ' - ' . $this->mode . 'b]');
624
		}
625
	}
626
627
	/**
628
	* Download archive
629
	*/
630
	function download($filename, $download_name = false)
631
	{
632
		global $phpbb_root_path;
633
634
		if ($download_name === false)
635
		{
636
			$download_name = $filename;
637
		}
638
639
		switch ($this->type)
640
		{
641
			case '.tar':
642
				$mimetype = 'application/x-tar';
643
			break;
644
645
			case '.tar.gz':
646
				$mimetype = 'application/x-gzip';
647
			break;
648
649
			case '.tar.bz2':
650
				$mimetype = 'application/x-bzip2';
651
			break;
652
653
			default:
654
				$mimetype = 'application/octet-stream';
655
			break;
656
		}
657
658
		header('Pragma: no-cache');
659
		header("Content-Type: $mimetype; name=\"$download_name$this->type\"");
660
		header("Content-disposition: attachment; filename=$download_name$this->type");
661
662
		$fp = @fopen("{$phpbb_root_path}store/$filename$this->type", 'rb');
663
		if ($fp)
664
		{
665
			while ($buffer = fread($fp, 1024))
666
			{
667
				echo $buffer;
668
			}
669
			fclose($fp);
670
		}
671
	}
672
}
673
674
?>