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1
<?php
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3
// $Id: functions.php 547 2008-01-17 19:38:05Z Ruebenwurzel $
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/*
6

    
7
 Website Baker Project <http://www.websitebaker.org/>
8
 Copyright (C) 2004-2008, Ryan Djurovich
9

    
10
 Website Baker is free software; you can redistribute it and/or modify
11
 it under the terms of the GNU General Public License as published by
12
 the Free Software Foundation; either version 2 of the License, or
13
 (at your option) any later version.
14

    
15
 Website Baker is distributed in the hope that it will be useful,
16
 but WITHOUT ANY WARRANTY; without even the implied warranty of
17
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
18
 GNU General Public License for more details.
19

    
20
 You should have received a copy of the GNU General Public License
21
 along with Website Baker; if not, write to the Free Software
22
 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
23

    
24
*/
25

    
26
/*
27

    
28
Website Baker functions file
29
This file contains general functions used in Website Baker
30

    
31
*/
32

    
33
// Stop this file from being accessed directly
34
if(!defined('WB_URL')) {
35
	header('Location: ../index.php');
36
	exit(0);
37
}
38

    
39
// Define that this file has been loaded
40
define('FUNCTIONS_FILE_LOADED', true);
41

    
42
// Function to remove a non-empty directory
43
function rm_full_dir($directory)
44
{
45
    // If suplied dirname is a file then unlink it
46
    if (is_file($directory)) {
47
        return unlink($directory);
48
    }
49

    
50
    // Empty the folder
51
    $dir = dir($directory);
52
    while (false !== $entry = $dir->read()) {
53
        // Skip pointers
54
        if ($entry == '.' || $entry == '..') {
55
            continue;
56
        }
57

    
58
        // Deep delete directories      
59
        if (is_dir("$directory/$entry")) {
60
            rm_full_dir("$directory/$entry");
61
        } else {
62
            unlink("$directory/$entry");
63
        }
64
    }
65

    
66
    // Now delete the folder
67
    $dir->close();
68
    return rmdir($directory);
69
}
70

    
71
// Function to open a directory and add to a dir list
72
function directory_list($directory) {
73
	
74
	$list = array();
75

    
76
	// Open the directory then loop through its contents
77
	$dir = dir($directory);
78
	while (false !== $entry = $dir->read()) {
79
		// Skip pointers
80
		if(substr($entry, 0, 1) == '.' || $entry == '.svn') {
81
			continue;
82
		}
83
		// Add dir and contents to list
84
		if (is_dir("$directory/$entry")) {
85
			$list = array_merge($list, directory_list("$directory/$entry"));
86
			$list[] = "$directory/$entry";
87
		}
88
	}
89

    
90
	// Now return the list
91
	return $list;
92
}
93

    
94
// Function to open a directory and add to a dir list
95
function chmod_directory_contents($directory, $file_mode) {
96
	
97
	// Set the umask to 0
98
	$umask = umask(0);
99
	
100
	// Open the directory then loop through its contents
101
	$dir = dir($directory);
102
	while (false !== $entry = $dir->read()) {
103
		// Skip pointers
104
		if(substr($entry, 0, 1) == '.' || $entry == '.svn') {
105
			continue;
106
		}
107
		// Chmod the sub-dirs contents
108
		if(is_dir("$directory/$entry")) {
109
			chmod_directory_contents("$directory/$entry", $file_mode);
110
		}
111
		change_mode($directory.'/'.$entry, 'file');
112
	}
113
	
114
	// Restore the umask
115
	umask($umask);
116

    
117
}
118

    
119
// Function to open a directory and add to a file list
120
function file_list($directory, $skip = array()) {
121
	
122
	$list = array();
123
	$skip_file = false;
124
	
125
	// Open the directory then loop through its contents
126
	$dir = dir($directory);
127
	while (false !== $entry = $dir->read()) {
128
		// Skip pointers
129
		if($entry == '.' || $entry == '..') {
130
			$skip_file = true;
131
		}
132
		// Check if we to skip anything else
133
		if($skip != array()) {
134
			foreach($skip AS $skip_name) {
135
				if($entry == $skip_name) {
136
					$skip_file = true;
137
				}
138
			}
139
		}
140
		// Add dir and contents to list
141
		if($skip_file != true AND is_file("$directory/$entry")) {
142
			$list[] = "$directory/$entry";
143
		}
144
		
145
		// Reset the skip file var
146
		$skip_file = false;
147
	}
148

    
149
	// Now delete the folder
150
	return $list;
151
}
152

    
153
// Function to get a list of home folders not to show
154
function get_home_folders() {
155
	global $database, $admin;
156
	$home_folders = array();
157
	// Only return home folders is this feature is enabled
158
	// and user is not admin
159
//	if(HOME_FOLDERS AND ($_SESSION['GROUP_ID']!='1')) {
160
	if(HOME_FOLDERS AND (!in_array('1',split(",",$_SESSION['GROUPS_ID'])))) {
161

    
162
		$query_home_folders = $database->query("SELECT home_folder FROM ".TABLE_PREFIX."users WHERE home_folder != '".$admin->get_home_folder()."'");
163
		if($query_home_folders->numRows() > 0) {
164
			while($folder = $query_home_folders->fetchRow()) {
165
				$home_folders[$folder['home_folder']] = $folder['home_folder'];
166
			}
167
		}
168
		function remove_home_subs($directory = '/', $home_folders) {
169
			if($handle = opendir(WB_PATH.MEDIA_DIRECTORY.$directory)) {
170
				// Loop through the dirs to check the home folders sub-dirs are not shown
171
			   while(false !== ($file = readdir($handle))) {
172
					if(substr($file, 0, 1) != '.' AND $file != '.svn' AND $file != 'index.php') {
173
						if(is_dir(WB_PATH.MEDIA_DIRECTORY.$directory.'/'.$file)) {
174
							if($directory != '/') { $file = $directory.'/'.$file; } else { $file = '/'.$file; }
175
							foreach($home_folders AS $hf) {
176
								$hf_length = strlen($hf);
177
								if($hf_length > 0) {
178
									if(substr($file, 0, $hf_length+1) == $hf) {
179
										$home_folders[$file] = $file;
180
									}
181
								}
182
							}
183
							$home_folders = remove_home_subs($file, $home_folders);
184
						}
185
					}
186
				}
187
			}
188
			return $home_folders;
189
		}
190
		$home_folders = remove_home_subs('/', $home_folders);
191
	}
192
	return $home_folders;
193
}
194

    
195
// Function to create directories
196
function make_dir($dir_name, $dir_mode = OCTAL_DIR_MODE) {
197
	if(!file_exists($dir_name)) {
198
		$umask = umask(0);
199
		mkdir($dir_name, $dir_mode);
200
		umask($umask);
201
		return true;
202
	} else {
203
		return false;	
204
	}
205
}
206

    
207
// Function to chmod files and directories
208
function change_mode($name) {
209
	if(OPERATING_SYSTEM != 'windows') {
210
		// Only chmod if os is not windows
211
		if(is_dir($name)) {
212
			$mode = OCTAL_DIR_MODE;
213
		} else {
214
			$mode = OCTAL_FILE_MODE;
215
		}
216
		if(file_exists($name)) {
217
			$umask = umask(0);
218
			chmod($name, $mode);
219
			umask($umask);
220
			return true;
221
		} else {
222
			return false;	
223
		}
224
	} else {
225
		return true;
226
	}
227
}
228

    
229
// Function to figure out if a parent exists
230
function is_parent($page_id) {
231
	global $database;
232
	// Get parent
233
	$query = $database->query("SELECT parent FROM ".TABLE_PREFIX."pages WHERE page_id = '$page_id'");
234
	$fetch = $query->fetchRow();
235
	// If parent isnt 0 return its ID
236
	if($fetch['parent'] == '0') {
237
		return false;
238
	} else {
239
		return $fetch['parent'];
240
	}
241
}
242

    
243
// Function to work out level
244
function level_count($page_id) {
245
	global $database;
246
	// Get page parent
247
	$query_page = $database->query("SELECT parent FROM ".TABLE_PREFIX."pages WHERE page_id = '$page_id' LIMIT 1");
248
	$fetch_page = $query_page->fetchRow();
249
	$parent = $fetch_page['parent'];
250
	if($parent > 0) {
251
		// Get the level of the parent
252
		$query_parent = $database->query("SELECT level FROM ".TABLE_PREFIX."pages WHERE page_id = '$parent' LIMIT 1");
253
		$fetch_parent = $query_parent->fetchRow();
254
		$level = $fetch_parent['level'];
255
		return $level+1;
256
	} else {
257
		return 0;
258
	}
259
}
260

    
261
// Function to work out root parent
262
function root_parent($page_id) {
263
	global $database;
264
	// Get page details
265
	$query_page = $database->query("SELECT parent,level FROM ".TABLE_PREFIX."pages WHERE page_id = '$page_id' LIMIT 1");
266
	$fetch_page = $query_page->fetchRow();
267
	$parent = $fetch_page['parent'];
268
	$level = $fetch_page['level'];	
269
	if($level == 1) {
270
		return $parent;
271
	} elseif($parent == 0) {
272
		return $page_id;
273
	} else {
274
		// Figure out what the root parents id is
275
		$parent_ids = array_reverse(get_parent_ids($page_id));
276
		return $parent_ids[0];
277
	}
278
}
279

    
280
// Function to get page title
281
function get_page_title($id) {
282
	global $database;
283
	// Get title
284
	$query = $database->query("SELECT page_title FROM ".TABLE_PREFIX."pages WHERE page_id = '$id'");
285
	$fetch = $query->fetchRow();
286
	// Return title
287
	return $fetch['page_title'];
288
}
289

    
290
// Function to get a pages menu title
291
function get_menu_title($id) {
292
	// Connect to the database
293
	$database = new database();
294
	// Get title
295
	$query = $database->query("SELECT menu_title FROM ".TABLE_PREFIX."pages WHERE page_id = '$id'");
296
	$fetch = $query->fetchRow();
297
	// Return title
298
	return $fetch['menu_title'];
299
}
300

    
301
// Function to get all parent page titles
302
function get_parent_titles($parent_id) {
303
	$titles[] = get_menu_title($parent_id);
304
	if(is_parent($parent_id) != false) {
305
		$parent_titles = get_parent_titles(is_parent($parent_id));
306
		$titles = array_merge($titles, $parent_titles);
307
	}
308
	return $titles;
309
}
310

    
311
// Function to get all parent page id's
312
function get_parent_ids($parent_id) {
313
	$ids[] = $parent_id;
314
	if(is_parent($parent_id) != false) {
315
		$parent_ids = get_parent_ids(is_parent($parent_id));
316
		$ids = array_merge($ids, $parent_ids);
317
	}
318
	return $ids;
319
}
320

    
321
// Function to genereate page trail
322
function get_page_trail($page_id) {
323
	return implode(',', array_reverse(get_parent_ids($page_id)));
324
}
325

    
326
// Function to get all sub pages id's
327
function get_subs($parent, $subs) {
328
	// Connect to the database
329
	$database = new database();
330
	// Get id's
331
	$query = $database->query("SELECT page_id FROM ".TABLE_PREFIX."pages WHERE parent = '$parent'");
332
	if($query->numRows() > 0) {
333
		while($fetch = $query->fetchRow()) {
334
			$subs[] = $fetch['page_id'];
335
			// Get subs of this sub
336
			$subs = get_subs($fetch['page_id'], $subs);
337
		}
338
	}
339
	// Return subs array
340
	return $subs;
341
}
342

    
343
// Function as replacement for php's htmlspecialchars()
344
function my_htmlspecialchars($string) {
345
	$string = preg_replace("/&(?=[#a-z0-9]+;)/i", "_x_", $string);
346
	$string = strtr($string, array("<"=>"&lt;", ">"=>"&gt;", "&"=>"&amp;", "\""=>"&quot;", "\'"=>"&#39;"));
347
	$string = preg_replace("/_x_(?=[#a-z0-9]+;)/i", "&", $string);
348
	return($string);
349
}
350

    
351
// Function to convert a string from $from- to $to-encoding, using mysql
352
function my_mysql_iconv($string, $from, $to) {
353
	// keep current character set values
354
	global $database;
355
	$query = $database->query("SELECT @@character_set_client");
356
	if($query->numRows() > 0) {
357
		$res = $query->fetchRow();
358
		$character_set_database = $res['@@character_set_client'];
359
	}	else { echo mysql_error()."\n<br />"; }
360
	$query = $database->query("SELECT @@character_set_results");
361
	if($query->numRows() > 0) {
362
		$res = $query->fetchRow();
363
		$character_set_results = $res['@@character_set_results'];
364
	}	else { echo mysql_error()."\n<br />"; }
365
	$query = $database->query("SELECT @@collation_connection");
366
	if($query->numRows() > 0) {
367
		$res = $query->fetchRow();
368
		$collation_results = $res['@@collation_connection'];
369
	}	else { echo mysql_error()."\n<br />"; }
370
	// set new character set values
371
	$query = $database->query("SET character_set_client=$from");
372
	$query = $database->query("SET character_set_results=$to");
373
	$query = $database->query("SET collation_connection=utf8_unicode_ci");
374
	$string_escaped = mysql_real_escape_string($string);
375
	// convert the string
376
	$query = $database->query("SELECT '$string_escaped'");
377
	if($query->numRows() > 0) {
378
		$res = $query->fetchRow();
379
		$converted_string = $res[0];
380
	}	else { echo mysql_error()."\n<br />"; }
381
	// restore previous character set values
382
	$query = $database->query("SET character_set_client=$character_set_database");
383
	$query = $database->query("SET character_set_results=$character_set_results");
384
	$query = $database->query("SET collation_connection=$collation_results");
385
	return $converted_string;
386
}
387

    
388
// Function as wrapper for mb_convert_encoding
389
// converts $charset_in to $charset_out or 
390
// UTF-8 to HTML-ENTITIES or HTML-ENTITIES to UTF-8
391
function mb_convert_encoding_wrapper($string, $charset_out, $charset_in) {
392
	if ($charset_out == $charset_in) {
393
		return $string;
394
	}
395
	$use_iconv = true;
396
	$use_mbstring = true;
397
	/*
398
	if(version_compare(PHP_VERSION, "5.1.0", "<")) {
399
		$use_mbstring = false; // don't rely on mb_convert_encoding if php<5.1.0
400
		$use_iconv = false; // don't rely on iconv neither
401
	}
402
	*/
403
	
404
	// try mb_convert_encoding(). This can handle to or from HTML-ENTITIES, too
405
	if ($use_mbstring && function_exists('mb_convert_encoding')) {
406
		// there's no GB2312 or ISO-8859-11 encoding in php's mb_* functions
407
		if ($charset_in=='ISO-8859-11' || $charset_in=='GB2312') {
408
			if ($use_iconv && function_exists('iconv')) {
409
				$string = iconv($charset_in, 'UTF-8', $string);
410
			}
411
			else {
412
				if ($charset_in == 'GB2312') {
413
					$string=my_mysql_iconv($string, 'gb2312', 'utf8');
414
				} else {
415
					$string=my_mysql_iconv($string, 'tis620', 'utf8');
416
				}
417
			}
418
			$charset_in='UTF-8';
419
			if ($charset_out == 'UTF-8') {
420
				return $string;
421
			}
422
		}
423
		if ($charset_out=='ISO-8859-11' || $charset_out=='GB2312') {
424
			$string=mb_convert_encoding($string, 'UTF-8', $charset_in);
425
			if ($use_iconv && function_exists('iconv')) {
426
				$string = iconv('UTF-8', $charset_out, $string);
427
			}
428
			else {
429
				if ($charset_out == 'GB2312') {
430
					$string=my_mysql_iconv($string, 'utf8', 'gb2312');
431
				} else {
432
					$string=my_mysql_iconv($string, 'utf8', 'tis620');
433
				}
434
			}
435
		} else {
436
			$string = strtr($string, array("&lt;"=>"&_lt;", "&gt;"=>"&_gt;", "&amp;"=>"&_amp;", "&quot;"=>"&_quot;", "&#39;"=>"&_#39;"));
437
			$string=mb_convert_encoding($string, $charset_out, $charset_in);
438
			$string = strtr($string, array("&_lt;"=>"&lt;", "&_gt;"=>"&gt;", "&_amp;"=>"&amp;", "&_quot;"=>"&quot;", "&_#39;"=>"&#39;"));
439
		}
440
		return $string;
441
	}
442

    
443
	// try iconv(). This can't handle to or from HTML-ENTITIES.
444
	if ($use_iconv && function_exists('iconv') && $charset_out!='HTML-ENTITIES' && $charset_in!='HTML-ENTITIES' ) {
445
		$string = iconv($charset_in, $charset_out, $string);
446
		return $string;
447
	}
448

    
449
	// do the UTF-8->HTML-ENTITIES or HTML-ENTITIES->UTF-8 translation if mb_convert_encoding isn't available
450
	if (($charset_in=='HTML-ENTITIES' && $charset_out=='UTF-8') || ($charset_in=='UTF-8' && $charset_out=='HTML-ENTITIES')) {
451
		$string = string_decode_encode_entities($string, $charset_out, $charset_in);
452
		return $string;
453
	}
454

    
455
	// mb_convert_encoding() and iconv() aren't available, so use my_mysql_iconv()
456
	if ($charset_in == 'ISO-8859-1') { $mysqlcharset_from = 'latin1'; }
457
	elseif ($charset_in == 'ISO-8859-2') { $mysqlcharset_from = 'latin2'; }
458
	elseif ($charset_in == 'ISO-8859-3') { $mysqlcharset_from = 'latin1'; }
459
	elseif ($charset_in == 'ISO-8859-4') { $mysqlcharset_from = 'latin7'; }
460
	elseif ($charset_in == 'ISO-8859-5') { $string = convert_cyr_string ($string, "iso8859-5", "windows-1251" ); $mysqlcharset_from = 'cp1251'; }
461
	elseif ($charset_in == 'ISO-8859-6') { $mysqlcharset_from = ''; } //?
462
	elseif ($charset_in == 'ISO-8859-7') { $mysqlcharset_from = 'greek'; }
463
	elseif ($charset_in == 'ISO-8859-8') { $mysqlcharset_from = 'hebrew'; }
464
	elseif ($charset_in == 'ISO-8859-9') { $mysqlcharset_from = 'latin5'; }
465
	elseif ($charset_in == 'ISO-8859-10') { $mysqlcharset_from = 'latin1'; }
466
	elseif ($charset_in == 'BIG5') { $mysqlcharset_from = 'big5'; }
467
	elseif ($charset_in == 'ISO-2022-JP') { $mysqlcharset_from = ''; } //?
468
	elseif ($charset_in == 'ISO-2022-KR') { $mysqlcharset_from = ''; } //?
469
	elseif ($charset_in == 'GB2312') { $mysqlcharset_from = 'gb2312'; }
470
	elseif ($charset_in == 'ISO-8859-11') { $mysqlcharset_from = 'tis620'; }
471
	elseif ($charset_in == 'UTF-8') { $mysqlcharset_from = 'utf8'; }
472
	else { $mysqlcharset_from = 'latin1'; }
473

    
474
	if ($charset_out == 'ISO-8859-1') { $mysqlcharset_to = 'latin1'; }
475
	elseif ($charset_out == 'ISO-8859-2') { $mysqlcharset_to = 'latin2'; }
476
	elseif ($charset_out == 'ISO-8859-3') { $mysqlcharset_to = 'latin1'; }
477
	elseif ($charset_out == 'ISO-8859-4') { $mysqlcharset_to = 'latin7'; }
478
	elseif ($charset_out == 'ISO-8859-5') { $mysqlcharset_to = 'cp1251'; } // use convert_cyr_string afterwards
479
	elseif ($charset_out == 'ISO-8859-6') { $mysqlcharset_to = ''; } //?
480
	elseif ($charset_out == 'ISO-8859-7') { $mysqlcharset_to = 'greek'; }
481
	elseif ($charset_out == 'ISO-8859-8') { $mysqlcharset_to = 'hebrew'; }
482
	elseif ($charset_out == 'ISO-8859-9') { $mysqlcharset_to = 'latin5'; }
483
	elseif ($charset_out == 'ISO-8859-10') { $mysqlcharset_to = 'latin1'; }
484
	elseif ($charset_out == 'BIG5') { $mysqlcharset_to = 'big5'; }
485
	elseif ($charset_out == 'ISO-2022-JP') { $mysqlcharset_to = ''; } //?
486
	elseif ($charset_out == 'ISO-2022-KR') { $mysqlcharset_to = ''; } //?
487
	elseif ($charset_out == 'GB2312') { $mysqlcharset_to = 'gb2312'; }
488
	elseif ($charset_out == 'ISO-8859-11') { $mysqlcharset_to = 'tis620'; }
489
	elseif ($charset_out == 'UTF-8') { $mysqlcharset_to = 'utf8'; }
490
	else { $mysqlcharset_to = 'latin1'; }
491

    
492
	if ($mysqlcharset_from!="" && $mysqlcharset_to!="" && $mysqlcharset_from!=$mysqlcharset_to) {
493
		$string=my_mysql_iconv($string, $mysqlcharset_from, $mysqlcharset_to);
494
		if ($mysqlcharset_to == 'cp1251') { 
495
			$string = convert_cyr_string ($string, "windows-1251", "iso-8859-5" );
496
		}
497
		return($string);
498
	}
499

    
500
	// $string is unchanged. This will happen if we have to deal with ISO-8859-6 or ISO-2022-JP or -KR
501
	// and mbstring _and_ iconv aren't available.
502
	return $string;
503
}
504

    
505
// Decodes or encodes html-entities. Works for utf-8 only!
506
function string_decode_encode_entities($string, $out='HTML-ENTITIES', $in='UTF-8') {
507
	if(!(($in=='UTF-8' || $in=='HTML-ENTITIES') && ($out=='UTF-8' || $out=='HTML-ENTITIES'))) {
508
		return $string;
509
	}
510
	$named_to_numbered_entities=array(
511
		'&Aacute;'=>'&#193;','&aacute;'=>'&#225;',
512
		'&Acirc;'=>'&#194;','&acirc;'=>'&#226;','&acute;'=>'&#180;','&AElig;'=>'&#198;','&aelig;'=>'&#230;',
513
		'&Agrave;'=>'&#192;','&agrave;'=>'&#224;','&alefsym;'=>'&#8501;','&Alpha;'=>'&#913;','&alpha;'=>'&#945;',
514
		'&and;'=>'&#8743;','&ang;'=>'&#8736;','&apos;'=>'&#39;','&Aring;'=>'&#197;','&aring;'=>'&#229;',
515
		'&asymp;'=>'&#8776;','&Atilde;'=>'&#195;','&atilde;'=>'&#227;','&Auml;'=>'&#196;','&auml;'=>'&#228;',
516
		'&bdquo;'=>'&#8222;','&Beta;'=>'&#914;','&beta;'=>'&#946;','&brvbar;'=>'&#166;','&bull;'=>'&#8226;',
517
		'&cap;'=>'&#8745;','&Ccedil;'=>'&#199;','&ccedil;'=>'&#231;','&cedil;'=>'&#184;','&cent;'=>'&#162;',
518
		'&Chi;'=>'&#935;','&chi;'=>'&#967;','&circ;'=>'&#710;','&clubs;'=>'&#9827;','&cong;'=>'&#8773;',
519
		'&copy;'=>'&#169;','&crarr;'=>'&#8629;','&cup;'=>'&#8746;','&curren;'=>'&#164;','&Dagger;'=>'&#8225;',
520
		'&dagger;'=>'&#8224;','&dArr;'=>'&#8659;','&darr;'=>'&#8595;','&deg;'=>'&#176;','&Delta;'=>'&#916;',
521
		'&delta;'=>'&#948;','&diams;'=>'&v#9830;','&divide;'=>'&#247;','&Eacute;'=>'&#201;','&eacute;'=>'&#233;',
522
		'&Ecirc;'=>'&#202;','&ecirc;'=>'&#234;','&Egrave;'=>'&#200;','&egrave;'=>'&#232;','&empty;'=>'&#8709;',
523
		'&emsp;'=>'&#8195;','&ensp;'=>'&#8194;','&Epsilon;'=>'&#917;','&epsilon;'=>'&#949;','&equiv;'=>'&#8801;',
524
		'&Eta;'=>'&#919;','&eta;'=>'&#951;','&ETH;'=>'&#208;','&eth;'=>'&#240;','&Euml;'=>'&#203;','&euml;'=>'&#235;',
525
		'&euro;'=>'&#8364;','&exist;'=>'&#8707;','&fnof;'=>'&#402;','&forall;'=>'&#8704;','&frac12;'=>'&#189;',
526
		'&frac14;'=>'&#188;','&frac34;'=>'&#190;','&frasl;'=>'&#8260;','&Gamma;'=>'&#915;','&gamma;'=>'&#947;',
527
		'&ge;'=>'&#8805;','&hArr;'=>'&#8660;','&harr;'=>'&#8596;','&hearts;'=>'&#9829;',
528
		'&hellip;'=>'&#8230;','&Iacute;'=>'&#205;','&iacute;'=>'&#237;','&Icirc;'=>'&#206;','&icirc;'=>'&#238;',
529
		'&iexcl;'=>'&#161;','&Igrave;'=>'&#204;','&igrave;'=>'&#236;','&image;'=>'&#8465;','&infin;'=>'&#8734;',
530
		'&int;'=>'&#8747;','&Iota;'=>'&#921;','&iota;'=>'&#953;','&iquest;'=>'&#191;','&isin;'=>'&#8712;',
531
		'&Iuml;'=>'&#207;','&iuml;'=>'&#239;','&Kappa;'=>'&#922;','&kappa;'=>'&#954;','&Lambda;'=>'&#923;',
532
		'&lambda;'=>'&#955;','&lang;'=>'&#9001;','&laquo;'=>'&#171;','&lArr;'=>'&#8656;','&larr;'=>'&#8592;',
533
		'&lceil;'=>'&#8968;','&ldquo;'=>'&#8220;','&le;'=>'&#8804;','&lfloor;'=>'&#8970;','&lowast;'=>'&#8727;',
534
		'&loz;'=>'&#9674;','&lrm;'=>'&#8206;','&lsaquo;'=>'&#8249;','&lsquo;'=>'&#8216;',
535
		'&macr;'=>'&#175;','&mdash;'=>'&#8212;','&micro;'=>'&#181;','&middot;'=>'&#183;','&minus;'=>'&#8722;',
536
		'&Mu;'=>'&#924;','&mu;'=>'&#956;','&nabla;'=>'&#8711;','&nbsp;'=>'&#160;','&ndash;'=>'&#8211;',
537
		'&ne;'=>'&#8800;','&ni;'=>'&#8715;','&not;'=>'&#172;','&notin;'=>'&#8713;','&nsub;'=>'&#8836;',
538
		'&Ntilde;'=>'&#209;','&ntilde;'=>'&#241;','&Nu;'=>'&#925;','&nu;'=>'&#957;','&Oacute;'=>'&#211;',
539
		'&oacute;'=>'&#243;','&Ocirc;'=>'&#212;','&ocirc;'=>'&#244;','&OElig;'=>'&#338;','&oelig;'=>'&#339;',
540
		'&Ograve;'=>'&#210;','&ograve;'=>'&#242;','&oline;'=>'&#8254;','&Omega;'=>'&#937;','&omega;'=>'&#969;',
541
		'&Omicron;'=>'&#927;','&omicron;'=>'&#959;','&oplus;'=>'&#8853;','&or;'=>'&#8744;','&ordf;'=>'&#170;',
542
		'&ordm;'=>'&#186;','&Oslash;'=>'&#216;','&oslash;'=>'&#248;','&Otilde;'=>'&#213;','&otilde;'=>'&#245;',
543
		'&otimes;'=>'&#8855;','&Ouml;'=>'&#214;','&ouml;'=>'&#246;','&para;'=>'&#182;','&part;'=>'&#8706;',
544
		'&permil;'=>'&#8240;','&perp;'=>'&#8869;','&Phi;'=>'&#934;','&phi;'=>'&#966;','&Pi;'=>'&#928;',
545
		'&pi;'=>'&#960;','&piv;'=>'&#982;','&plusmn;'=>'&#177;','&pound;'=>'&#163;','&Prime;'=>'&#8243;',
546
		'&prime;'=>'&#8242;','&prod;'=>'&#8719;','&prop;'=>'&#8733;','&Psi;'=>'&#936;','&psi;'=>'&#968;',
547
		'&quot;'=>'&#34;','&radic;'=>'&#8730;','&rang;'=>'&#9002;','&raquo;'=>'&#187;','&rArr;'=>'&#8658;',
548
		'&rarr;'=>'&#8594;','&rceil;'=>'&#8969;','&rdquo;'=>'&#8221;','&real;'=>'&#8476;','&reg;'=>'&#174;',
549
		'&rfloor;'=>'&#8971;','&Rho;'=>'&#929;','&rho;'=>'&#961;','&rlm;'=>'&#8207;','&rsaquo;'=>'&#8250;',
550
		'&rsquo;'=>'&#8217;','&sbquo;'=>'&#8218;','&Scaron;'=>'&#352;','&scaron;'=>'&#353;','&sdot;'=>'&#8901;',
551
		'&sect;'=>'&#167;','&shy;'=>'&#173;','&Sigma;'=>'&#931;','&sigma;'=>'&#963;','&sigmaf;'=>'&#962;',
552
		'&sim;'=>'&#8764;','&spades;'=>'&#9824;','&sub;'=>'&#8834;','&sube;'=>'&#8838;','&sum;'=>'&#8721;',
553
		'&sup;'=>'&#8835;','&sup1;'=>'&#185;','&sup2;'=>'&#178;','&sup3;'=>'&#179;','&supe;'=>'&#8839;',
554
		'&szlig;'=>'&#223;','&Tau;'=>'&#932;','&tau;'=>'&#964;','&there4;'=>'&#8756;','&Theta;'=>'&#920;',
555
		'&theta;'=>'&#952;','&thetasym;'=>'&#977;','&thinsp;'=>'&#8201;','&THORN;'=>'&#222;','&thorn;'=>'&#254;',
556
		'&tilde;'=>'&#732;','&times;'=>'&#215;','&trade;'=>'&#8482;','&Uacute;'=>'&#218;','&uacute;'=>'&#250;',
557
		'&uArr;'=>'&#8657;','&uarr;'=>'&#8593;','&Ucirc;'=>'&#219;','&ucirc;'=>'&#251;','&Ugrave;'=>'&#217;',
558
		'&ugrave;'=>'&#249;','&uml;'=>'&#168;','&upsih;'=>'&#978;','&Upsilon;'=>'&#933;','&upsilon;'=>'&#965;',
559
		'&Uuml;'=>'&#220;','&uuml;'=>'&#252;','&weierp;'=>'&#8472;','&Xi;'=>'&#926;','&xi;'=>'&#958;',
560
		'&Yacute;'=>'&#221;','&yacute;'=>'&#253;','&yen;'=>'&#165;','&Yuml;'=>'&#376;','&yuml;'=>'&#255;',
561
		'&Zeta;'=>'&#918;','&zeta;'=>'&#950;','&zwj;'=>'&#8205;','&zwnj;'=>'&#8204;'
562
	);
563
	$numbered_to_named_entities=array(
564
		'&#193;'=>'&Aacute;','&#225;'=>'&aacute;','&#194;'=>'&Acirc;','&#226;'=>'&acirc;','&#180;'=>'&acute;',
565
		'&#198;'=>'&AElig;','&#230;'=>'&aelig;','&#192;'=>'&Agrave;','&#224;'=>'&agrave;','&#8501;'=>'&alefsym;',
566
		'&#913;'=>'&Alpha;','&#945;'=>'&alpha;','&#8743;'=>'&and;','&#8736;'=>'&ang;',
567
		'&#39;'=>'&apos;','&#197;'=>'&Aring;','&#229;'=>'&aring;','&#8776;'=>'&asymp;','&#195;'=>'&Atilde;',
568
		'&#227;'=>'&atilde;','&#196;'=>'&Auml;','&#228;'=>'&auml;','&#8222;'=>'&bdquo;','&#914;'=>'&Beta;',
569
		'&#946;'=>'&beta;','&#166;'=>'&brvbar;','&#8226;'=>'&bull;','&#8745;'=>'&cap;','&#199;'=>'&Ccedil;',
570
		'&#231;'=>'&ccedil;','&#184;'=>'&cedil;','&#162;'=>'&cent;','&#935;'=>'&Chi;','&#967;'=>'&chi;',
571
		'&#710;'=>'&circ;','&#9827;'=>'&clubs;','&#8773;'=>'&cong;','&#169;'=>'&copy;','&#8629;'=>'&crarr;',
572
		'&#8746;'=>'&cup;','&#164;'=>'&curren;','&#8225;'=>'&Dagger;','&#8224;'=>'&dagger;','&#8659;'=>'&dArr;',
573
		'&#8595;'=>'&darr;','&#176;'=>'&deg;','&#916;'=>'&Delta;','&#948;'=>'&delta;','&v#9830;'=>'&diams;',
574
		'&#247;'=>'&divide;','&#201;'=>'&Eacute;','&#233;'=>'&eacute;','&#202;'=>'&Ecirc;','&#234;'=>'&ecirc;',
575
		'&#200;'=>'&Egrave;','&#232;'=>'&egrave;','&#8709;'=>'&empty;','&#8195;'=>'&emsp;','&#8194;'=>'&ensp;',
576
		'&#917;'=>'&Epsilon;','&#949;'=>'&epsilon;','&#8801;'=>'&equiv;','&#919;'=>'&Eta;','&#951;'=>'&eta;',
577
		'&#208;'=>'&ETH;','&#240;'=>'&eth;','&#203;'=>'&Euml;','&#235;'=>'&euml;','&#8364;'=>'&euro;',
578
		'&#8707;'=>'&exist;','&#402;'=>'&fnof;','&#8704;'=>'&forall;','&#189;'=>'&frac12;','&#188;'=>'&frac14;',
579
		'&#190;'=>'&frac34;','&#8260;'=>'&frasl;','&#915;'=>'&Gamma;','&#947;'=>'&gamma;','&#8805;'=>'&ge;',
580
		'&#8660;'=>'&hArr;','&#8596;'=>'&harr;','&#9829;'=>'&hearts;','&#8230;'=>'&hellip;',
581
		'&#205;'=>'&Iacute;','&#237;'=>'&iacute;','&#206;'=>'&Icirc;','&#238;'=>'&icirc;','&#161;'=>'&iexcl;',
582
		'&#204;'=>'&Igrave;','&#236;'=>'&igrave;','&#8465;'=>'&image;','&#8734;'=>'&infin;','&#8747;'=>'&int;',
583
		'&#921;'=>'&Iota;','&#953;'=>'&iota;','&#191;'=>'&iquest;','&#8712;'=>'&isin;','&#207;'=>'&Iuml;',
584
		'&#239;'=>'&iuml;','&#922;'=>'&Kappa;','&#954;'=>'&kappa;','&#923;'=>'&Lambda;','&#955;'=>'&lambda;',
585
		'&#9001;'=>'&lang;','&#171;'=>'&laquo;','&#8656;'=>'&lArr;','&#8592;'=>'&larr;','&#8968;'=>'&lceil;',
586
		'&#8220;'=>'&ldquo;','&#8804;'=>'&le;','&#8970;'=>'&lfloor;','&#8727;'=>'&lowast;','&#9674;'=>'&loz;',
587
		'&#8206;'=>'&lrm;','&#8249;'=>'&lsaquo;','&#8216;'=>'&lsquo;','&#175;'=>'&macr;',
588
		'&#8212;'=>'&mdash;','&#181;'=>'&micro;','&#183;'=>'&middot;','&#8722;'=>'&minus;','&#924;'=>'&Mu;',
589
		'&#956;'=>'&mu;','&#8711;'=>'&nabla;','&#160;'=>'&nbsp;','&#8211;'=>'&ndash;','&#8800;'=>'&ne;',
590
		'&#8715;'=>'&ni;','&#172;'=>'&not;','&#8713;'=>'&notin;','&#8836;'=>'&nsub;','&#209;'=>'&Ntilde;',
591
		'&#241;'=>'&ntilde;','&#925;'=>'&Nu;','&#957;'=>'&nu;','&#211;'=>'&Oacute;','&#243;'=>'&oacute;',
592
		'&#212;'=>'&Ocirc;','&#244;'=>'&ocirc;','&#338;'=>'&OElig;','&#339;'=>'&oelig;','&#210;'=>'&Ograve;',
593
		'&#242;'=>'&ograve;','&#8254;'=>'&oline;','&#937;'=>'&Omega;','&#969;'=>'&omega;','&#927;'=>'&Omicron;',
594
		'&#959;'=>'&omicron;','&#8853;'=>'&oplus;','&#8744;'=>'&or;','&#170;'=>'&ordf;','&#186;'=>'&ordm;',
595
		'&#216;'=>'&Oslash;','&#248;'=>'&oslash;','&#213;'=>'&Otilde;','&#245;'=>'&otilde;','&#8855;'=>'&otimes;',
596
		'&#214;'=>'&Ouml;','&#246;'=>'&ouml;','&#182;'=>'&para;','&#8706;'=>'&part;','&#8240;'=>'&permil;',
597
		'&#8869;'=>'&perp;','&#934;'=>'&Phi;','&#966;'=>'&phi;','&#928;'=>'&Pi;','&#960;'=>'&pi;','&#982;'=>'&piv;',
598
		'&#177;'=>'&plusmn;','&#163;'=>'&pound;','&#8243;'=>'&Prime;','&#8242;'=>'&prime;','&#8719;'=>'&prod;',
599
		'&#8733;'=>'&prop;','&#936;'=>'&Psi;','&#968;'=>'&psi;','&#34;'=>'&quot;','&#8730;'=>'&radic;',
600
		'&#9002;'=>'&rang;','&#187;'=>'&raquo;','&#8658;'=>'&rArr;','&#8594;'=>'&rarr;','&#8969;'=>'&rceil;',
601
		'&#8221;'=>'&rdquo;','&#8476;'=>'&real;','&#174;'=>'&reg;','&#8971;'=>'&rfloor;','&#929;'=>'&Rho;',
602
		'&#961;'=>'&rho;','&#8207;'=>'&rlm;','&#8250;'=>'&rsaquo;','&#8217;'=>'&rsquo;','&#8218;'=>'&sbquo;',
603
		'&#352;'=>'&Scaron;','&#353;'=>'&scaron;','&#8901;'=>'&sdot;','&#167;'=>'&sect;','&#173;'=>'&shy;',
604
		'&#931;'=>'&Sigma;','&#963;'=>'&sigma;','&#962;'=>'&sigmaf;','&#8764;'=>'&sim;','&#9824;'=>'&spades;',
605
		'&#8834;'=>'&sub;','&#8838;'=>'&sube;','&#8721;'=>'&sum;','&#8835;'=>'&sup;','&#185;'=>'&sup1;',
606
		'&#178;'=>'&sup2;','&#179;'=>'&sup3;','&#8839;'=>'&supe;','&#223;'=>'&szlig;','&#932;'=>'&Tau;',
607
		'&#964;'=>'&tau;','&#8756;'=>'&there4;','&#920;'=>'&Theta;','&#952;'=>'&theta;','&#977;'=>'&thetasym;',
608
		'&#8201;'=>'&thinsp;','&#222;'=>'&THORN;','&#254;'=>'&thorn;','&#732;'=>'&tilde;','&#215;'=>'&times;',
609
		'&#8482;'=>'&trade;','&#218;'=>'&Uacute;','&#250;'=>'&uacute;','&#8657;'=>'&uArr;','&#8593;'=>'&uarr;',
610
		'&#219;'=>'&Ucirc;','&#251;'=>'&ucirc;','&#217;'=>'&Ugrave;','&#249;'=>'&ugrave;','&#168;'=>'&uml;',
611
		'&#978;'=>'&upsih;','&#933;'=>'&Upsilon;','&#965;'=>'&upsilon;','&#220;'=>'&Uuml;','&#252;'=>'&uuml;',
612
		'&#8472;'=>'&weierp;','&#926;'=>'&Xi;','&#958;'=>'&xi;','&#221;'=>'&Yacute;','&#253;'=>'&yacute;',
613
		'&#165;'=>'&yen;','&#376;'=>'&Yuml;','&#255;'=>'&yuml;','&#918;'=>'&Zeta;','&#950;'=>'&zeta;','&#8205;'=>'&zwj;',
614
		'&#8204;'=>'&zwnj;'
615
	);
616
		
617
	if ($in == 'HTML-ENTITIES') {
618
		$string = strtr($string, $named_to_numbered_entities);
619
		$string = preg_replace("/&#([0-9]+);/e", "code_to_utf8($1)", $string);
620
	}
621
	elseif ($out == 'HTML-ENTITIES') {
622
		$char = "";
623
		$i=0;
624
		$len=strlen($string);
625
		if($len==0) return $string;
626
		do {
627
			if(ord($string{$i}) <= 127) $ud = $string{$i++};
628
			elseif(ord($string{$i}) <= 223) $ud = (ord($string{$i++})-192)*64 + (ord($string{$i++})-128);
629
			elseif(ord($string{$i}) <= 239) $ud = (ord($string{$i++})-224)*4096 + (ord($string{$i++})-128)*64 + (ord($string{$i++})-128);
630
			elseif(ord($string{$i}) <= 247) $ud = (ord($string{$i++})-240)*262144 + (ord($string{$i++})-128)*4096 + (ord($string{$i++})-128)*64 + (ord($string{$i++})-128);
631
			elseif(ord($string{$i}) <= 251) $ud = ord($string{$i++}); // error!
632
			if($ud > 127) {
633
				$char .= "&#$ud;";
634
			} else {
635
				$char .= $ud;
636
			}
637
		} while($i < $len);
638
		$string = $char;
639
		$string = strtr($string, $numbered_to_named_entities);
640
		// do ' and "
641
		$string = strtr($string, array('\''=>'&#39;', '\"'=>'&quot;'));
642
	}
643
	return $string;
644
}
645

    
646
// support-function for string_decode_encode_entities()
647
function code_to_utf8($num) {
648
	if ($num <= 0x7F) {
649
		return chr($num);
650
	} elseif ($num <= 0x7FF) {
651
		return chr(($num >> 6) + 192) . chr(($num & 63) + 128);
652
	} elseif ($num <= 0xFFFF) {
653
		 return chr(($num >> 12) + 224) . chr((($num >> 6) & 63) + 128) . chr(($num & 63) + 128);
654
	} elseif ($num <= 0x1FFFFF) {
655
		return chr(($num >> 18) + 240) . chr((($num >> 12) & 63) + 128) . chr((($num >> 6) & 63) + 128) . chr(($num & 63) + 128);
656
	}
657
	return " ";
658
}
659

    
660
// Function to convert a string from mixed html-entities/umlauts to pure utf-8-umlauts
661
function string_to_utf8($string, $charset=DEFAULT_CHARSET) {
662
	$charset = strtoupper($charset);
663
	if ($charset == '') { $charset = 'ISO-8859-1'; }
664

    
665
	if (!is_UTF8($string)) {
666
		$string=mb_convert_encoding_wrapper($string, 'UTF-8', $charset);
667
	}
668
	// check if we really get UTF-8. We don't get UTF-8 if charset is ISO-8859-6 or ISO-2022-JP/KR
669
	// and mb_string AND iconv aren't available.
670
	if (is_UTF8($string)) {
671
		$string=mb_convert_encoding_wrapper($string, 'HTML-ENTITIES', 'UTF-8');
672
		$string=mb_convert_encoding_wrapper($string, 'UTF-8', 'HTML-ENTITIES');
673
	} else {
674
		// nothing we can do here :-(
675
	}
676
	return($string);
677
}
678

    
679
// function to check if a string is UTF-8
680
function is_UTF8 ($str) {
681
	if (strlen($str) < 4000) {
682
		// see http://bugs.php.net/bug.php?id=24460 and http://bugs.php.net/bug.php?id=27070 and http://ilia.ws/archives/5-Top-10-ways-to-crash-PHP.html for this.
683
		// 4000 works for me ...
684
		return preg_match('/^(?:[\x09\x0A\x0D\x20-\x7E]|[\xC2-\xDF][\x80-\xBF]|\xE0[\xA0-\xBF][\x80-\xBF]|[\xE1-\xEC\xEE\xEF][\x80-\xBF]{2}|\xED[\x80-\x9F][\x80-\xBF]|\xF0[\x90-\xBF][\x80-\xBF]{2}|[\xF1-\xF3][\x80-\xBF]{3}|\xF4[\x80-\x8F][\x80-\xBF]{2})*$/s', $str);
685
	}	else {
686
		$isUTF8 = true;
687
		while($str{0}) {
688
			if (preg_match("/^[\x09\x0A\x0D\x20-\x7E]/", $str)) { $str = substr($str, 1); continue; }
689
			if (preg_match("/^[\xC2-\xDF][\x80-\xBF]/", $str)) { $str = substr($str, 2); continue; }
690
			if (preg_match("/^\xE0[\xA0-\xBF][\x80-\xBF]/", $str)) { $str = substr($str, 3); continue; }
691
			if (preg_match("/^[\xE1-\xEC\xEE\xEF][\x80-\xBF]{2}/", $str)) { $str = substr($str, 3); continue; }
692
			if (preg_match("/^\xED[\x80-\x9F][\x80-\xBF]/", $str)) { $str = substr($str, 3); continue; }
693
			if (preg_match("/^\xF0[\x90-\xBF][\x80-\xBF]{2}/", $str)) { $str = substr($str, 4); continue; }
694
			if (preg_match("/^[\xF1-\xF3][\x80-\xBF]{3}/", $str)) { $str = substr($str, 4); continue; }
695
			if (preg_match("/^\xF4[\x80-\x8F][\x80-\xBF]{2}/", $str)) { $str = substr($str, 4); continue; }
696
			if (preg_match("/^$/", $str)) { break; }
697
			$isUTF8 = false;
698
			break;
699
		}
700
		return ($isUTF8);
701
	}
702
}
703

    
704
// Function to convert a string from mixed html-entities/umlauts to pure $charset_out-umlauts
705
function entities_to_umlauts($string, $charset_out=DEFAULT_CHARSET) {
706
	$charset_out = strtoupper($charset_out);
707
	if ($charset_out == '') { $charset_out = 'ISO-8859-1'; }
708
	$charset_in = strtoupper(DEFAULT_CHARSET);
709
	require_once(WB_PATH.'/framework/charsets_table.php');
710
	global $iso_8859_2_to_utf8, $iso_8859_3_to_utf8, $iso_8859_4_to_utf8, $iso_8859_5_to_utf8, $iso_8859_6_to_utf8, $iso_8859_7_to_utf8, $iso_8859_8_to_utf8, $iso_8859_9_to_utf8, $iso_8859_10_to_utf8, $iso_8859_11_to_utf8;
711
	global $utf8_to_iso_8859_2, $utf8_to_iso_8859_3, $utf8_to_iso_8859_4, $utf8_to_iso_8859_5, $utf8_to_iso_8859_6, $utf8_to_iso_8859_7, $utf8_to_iso_8859_8, $utf8_to_iso_8859_9, $utf8_to_iso_8859_10, $utf8_to_iso_8859_11;
712

    
713
	// string to utf-8, entities_to_utf8
714
	if (substr($charset_in,0,8) == 'ISO-8859' || $charset_in == 'UTF-8') {
715
		if ($charset_in == 'ISO-8859-1') {
716
			$string=utf8_encode($string);
717
		} elseif ($charset_in == 'ISO-8859-2') {
718
			$string = strtr($string, $iso_8859_2_to_utf8);
719
		} elseif ($charset_in == 'ISO-8859-3') {
720
			$string = strtr($string, $iso_8859_3_to_utf8);
721
		} elseif ($charset_in == 'ISO-8859-4') {
722
			$string = strtr($string, $iso_8859_4_to_utf8);
723
		} elseif ($charset_in == 'ISO-8859-5') {
724
			$string = strtr($string, $iso_8859_5_to_utf8);
725
		} elseif ($charset_in == 'ISO-8859-6') {
726
			$string = strtr($string, $iso_8859_6_to_utf8);
727
		} elseif ($charset_in == 'ISO-8859-7') {
728
			$string = strtr($string, $iso_8859_7_to_utf8);
729
		} elseif ($charset_in == 'ISO-8859-8') {
730
			$string = strtr($string, $iso_8859_8_to_utf8);
731
		} elseif ($charset_in == 'ISO-8859-9') {
732
			$string = strtr($string, $iso_8859_9_to_utf8);
733
		} elseif ($charset_in == 'ISO-8859-10') {
734
			$string = strtr($string, $iso_8859_10_to_utf8);
735
		} elseif ($charset_in == 'ISO-8859-11') {
736
			$string = strtr($string, $iso_8859_11_to_utf8);
737
		}
738
		// decode html-entities
739
		if(preg_match("/&[#a-zA-Z0-9]+;/", $string)) {
740
			$string=string_decode_encode_entities($string, 'UTF-8', 'HTML-ENTITIES');
741
			//$string=mb_convert_encoding_wrapper($string, 'HTML-ENTITIES', 'UTF-8'); // alternative to string_decode_encode_entities()
742
			//$string=mb_convert_encoding_wrapper($string, 'UTF-8', 'HTML-ENTITIES');
743
		}
744
	}
745
	else {
746
		$string = string_to_utf8($string); // will decode html-entities, too.
747
	}
748
	// string to $charset_out
749
	if($charset_out == 'ISO-8859-1') {
750
			$string=utf8_decode($string);
751
	} elseif($charset_out == 'ISO-8859-2') {
752
		$string = strtr($string, $utf8_to_iso_8859_2);
753
	} elseif($charset_out == 'ISO-8859-3') {
754
		$string = strtr($string, $utf8_to_iso_8859_3);
755
	} elseif($charset_out == 'ISO-8859-4') {
756
		$string = strtr($string, $utf8_to_iso_8859_4);
757
	} elseif($charset_out == 'ISO-8859-5') {
758
		$string = strtr($string, $utf8_to_iso_8859_5);
759
	} elseif($charset_out == 'ISO-8859-6') {
760
		$string = strtr($string, $utf8_to_iso_8859_6);
761
	} elseif($charset_out == 'ISO-8859-7') {
762
		$string = strtr($string, $utf8_to_iso_8859_7);
763
	} elseif($charset_out == 'ISO-8859-8') {
764
		$string = strtr($string, $utf8_to_iso_8859_8);
765
	} elseif($charset_out == 'ISO-8859-9') {
766
		$string = strtr($string, $utf8_to_iso_8859_9);
767
	} elseif($charset_out == 'ISO-8859-10') {
768
		$string = strtr($string, $utf8_to_iso_8859_10);
769
	} elseif($charset_out == 'ISO-8859-11') {
770
		$string = strtr($string, $utf8_to_iso_8859_11);
771
	} elseif($charset_out != 'UTF-8') {
772
		if(is_UTF8($string)) {
773
			$string=mb_convert_encoding_wrapper($string, $charset_out, 'UTF-8');
774
		}
775
	}
776
	return $string;
777
}	
778

    
779
// Function to convert a string from mixed html-entitites/$charset_in-umlauts to pure html-entities
780
function umlauts_to_entities($string, $charset_in=DEFAULT_CHARSET) {
781
	$charset_in = strtoupper($charset_in);
782
	if ($charset_in == "") { $charset_in = 'ISO-8859-1'; }
783
	require_once(WB_PATH.'/framework/charsets_table.php');
784
	global $iso_8859_2_to_utf8, $iso_8859_3_to_utf8, $iso_8859_4_to_utf8, $iso_8859_5_to_utf8, $iso_8859_6_to_utf8, $iso_8859_7_to_utf8, $iso_8859_8_to_utf8, $iso_8859_9_to_utf8, $iso_8859_10_to_utf8, $iso_8859_11_to_utf8;
785

    
786
	// string to utf-8, umlauts_to_entities
787
	if ($charset_in == 'UTF-8' || substr($charset_in,0,8) == 'ISO-8859') {
788
		if ($charset_in == 'ISO-8859-1') {
789
			$string=utf8_encode($string);
790
		} elseif ($charset_in == 'ISO-8859-2') {
791
			$string = strtr($string, $iso_8859_2_to_utf8);
792
		} elseif ($charset_in == 'ISO-8859-3') {
793
			$string = strtr($string, $iso_8859_3_to_utf8);
794
		} elseif ($charset_in == 'ISO-8859-4') {
795
			$string = strtr($string, $iso_8859_4_to_utf8);
796
		} elseif ($charset_in == 'ISO-8859-5') {
797
			$string = strtr($string, $iso_8859_5_to_utf8);
798
		} elseif ($charset_in == 'ISO-8859-6') {
799
			$string = strtr($string, $iso_8859_6_to_utf8);
800
		} elseif ($charset_in == 'ISO-8859-7') {
801
			$string = strtr($string, $iso_8859_7_to_utf8);
802
		} elseif ($charset_in == 'ISO-8859-8') {
803
			$string = strtr($string, $iso_8859_8_to_utf8);
804
		} elseif ($charset_in == 'ISO-8859-9') {
805
			$string = strtr($string, $iso_8859_9_to_utf8);
806
		} elseif ($charset_in == 'ISO-8859-10') {
807
			$string = strtr($string, $iso_8859_10_to_utf8);
808
		} elseif ($charset_in == 'ISO-8859-11') {
809
			$string = strtr($string, $iso_8859_11_to_utf8);
810
		}
811
		// encode html-entities
812
		$string=string_decode_encode_entities($string, 'HTML-ENTITIES', 'UTF-8');
813
		//$string=mb_convert_encoding_wrapper($string, 'HTML-ENTITIES', 'UTF-8');
814
	}
815
	else {
816
		$string = string_to_utf8($string, $charset_in);
817
		// encode html-entities
818
		if (is_UTF8($string)) {
819
			$string=string_decode_encode_entities($string, 'HTML-ENTITIES', 'UTF-8');
820
			//$string=mb_convert_encoding_wrapper($string, 'HTML-ENTITIES', 'UTF-8');
821
		}
822
	}
823
	return $string;
824
}
825

    
826
function umlauts_to_defcharset($string, $charset) {
827
		$charset_out = strtoupper(DEFAULT_CHARSET);
828
		if ($charset_out == "") { $charset_out = 'ISO-8859-1'; }
829
		require_once(WB_PATH.'/framework/charsets_table.php');
830
		global $utf8_to_iso_8859_2, $utf8_to_iso_8859_3, $utf8_to_iso_8859_4, $utf8_to_iso_8859_5, $utf8_to_iso_8859_6, $utf8_to_iso_8859_7, $utf8_to_iso_8859_8, $utf8_to_iso_8859_9, $utf8_to_iso_8859_10, $utf8_to_iso_8859_11;
831
		
832
		if($charset_out == $charset) {
833
			return $string;
834
		}
835

    
836
		if($charset == 'UTF-8') {
837
			if($charset_out == 'ISO-8859-1') {
838
				$string = utf8_decode($string);
839
			} elseif ($charset_out == 'ISO-8859-2') {
840
				$string = strtr($string, $utf8_to_iso_8859_2);
841
			} elseif ($charset_out == 'ISO-8859-3') {
842
				$string = strtr($string, $utf8_to_iso_8859_3);
843
			} elseif ($charset_out == 'ISO-8859-4') {
844
				$string = strtr($string, $utf8_to_iso_8859_4);
845
			} elseif ($charset_out == 'ISO-8859-5') {
846
				$string = strtr($string, $utf8_to_iso_8859_5);
847
			} elseif ($charset_out == 'ISO-8859-6') {
848
				$string = strtr($string, $utf8_to_iso_8859_6);
849
			} elseif ($charset_out == 'ISO-8859-7') {
850
				$string = strtr($string, $utf8_to_iso_8859_7);
851
			} elseif ($charset_out == 'ISO-8859-8') {
852
				$string = strtr($string, $utf8_to_iso_8859_8);
853
			} elseif ($charset_out == 'ISO-8859-9') {
854
				$string = strtr($string, $utf8_to_iso_8859_9);
855
			} elseif ($charset_out == 'ISO-8859-10') {
856
				$string = strtr($string, $utf8_to_iso_8859_10);
857
			} elseif ($charset_out == 'ISO-8859-11') {
858
				$string = strtr($string, $utf8_to_iso_8859_11);
859
			}
860
			else {
861
				$string=mb_convert_encoding_wrapper($string, $charset_out, $charset);
862
			}
863
		}
864
		else {
865
			$string=mb_convert_encoding_wrapper($string, $charset_out, $charset);
866
		}
867
		
868
	return $string;
869
}
870
	
871
// translate any latin/greek/cyrillic html-entities to their plain 7bit equivalents
872
// and numbered-entities into hex
873
function entities_to_7bit($string) {
874
	require(WB_PATH.'/framework/convert.php');
875
	$string = strtr($string, $conversion_array);
876
	$string = preg_replace('/&#([0-9]+);/e', "dechex('$1')",  $string);
877
	return($string);
878
}
879

    
880
// Function to convert a page title to a page filename
881
function page_filename($string) {
882
	$string = entities_to_7bit(umlauts_to_entities($string));
883
	// Now replace spaces with page spcacer
884
	$string = trim($string);
885
	$string = preg_replace('/(\s)+/', PAGE_SPACER, $string);
886
	// Now remove all bad characters
887
	$bad = array(
888
	'\'', /* /  */ '"', /* " */	'<', /* < */	'>', /* > */
889
	'{', /* { */	'}', /* } */	'[', /* [ */	']', /* ] */	'`', /* ` */
890
	'!', /* ! */	'@', /* @ */	'#', /* # */	'$', /* $ */	'%', /* % */
891
	'^', /* ^ */	'&', /* & */	'*', /* * */	'(', /* ( */	')', /* ) */
892
	'=', /* = */	'+', /* + */	'|', /* | */	'/', /* / */	'\\', /* \ */
893
	';', /* ; */	':', /* : */	',', /* , */	'?' /* ? */
894
	);
895
	$string = str_replace($bad, '', $string);
896
	// Now convert to lower-case
897
	$string = strtolower($string);
898
	// If there are any weird language characters, this will protect us against possible problems they could cause
899
	$string = str_replace(array('%2F', '%'), array('/', ''), urlencode($string));
900
	// Finally, return the cleaned string
901
	return $string;
902
}
903

    
904
// Function to convert a desired media filename to a clean filename
905
function media_filename($string) {
906
	$string = entities_to_7bit(umlauts_to_entities($string));
907
	// Now remove all bad characters
908
	$bad = array(
909
	'\'', // '
910
	'"', // "
911
	'`', // `
912
	'!', // !
913
	'@', // @
914
	'#', // #
915
	'$', // $
916
	'%', // %
917
	'^', // ^
918
	'&', // &
919
	'*', // *
920
	'=', // =
921
	'+', // +
922
	'|', // |
923
	'/', // /
924
	'\\', // \
925
	';', // ;
926
	':', // :
927
	',', // ,
928
	'?' // ?
929
	);
930
	$string = str_replace($bad, '', $string);
931
	// Clean any page spacers at the end of string
932
	$string = trim($string);
933
	// Finally, return the cleaned string
934
	return $string;
935
}
936

    
937
// Function to work out a page link
938
if(!function_exists('page_link')) {
939
	function page_link($link) {
940
		global $admin;
941
		return $admin->page_link($link);
942
	}
943
}
944

    
945
// Create a new file in the pages directory
946
function create_access_file($filename,$page_id,$level) {
947
	global $admin, $MESSAGE;
948
	if(!is_writable(WB_PATH.PAGES_DIRECTORY.'/')) {
949
		$admin->print_error($MESSAGE['PAGES']['CANNOT_CREATE_ACCESS_FILE']);
950
	} else {
951
		// First make sure parent folder exists
952
		$parent_folders = explode('/',str_replace(WB_PATH.PAGES_DIRECTORY, '', dirname($filename)));
953
		$parents = '';
954
		foreach($parent_folders AS $parent_folder) {
955
			if($parent_folder != '/' AND $parent_folder != '') {
956
				$parents .= '/'.$parent_folder;
957
				if(!file_exists(WB_PATH.PAGES_DIRECTORY.$parents)) {
958
					make_dir(WB_PATH.PAGES_DIRECTORY.$parents);
959
				}
960
			}	
961
		}
962
		// The depth of the page directory in the directory hierarchy
963
		// '/pages' is at depth 1
964
		$pages_dir_depth=count(explode('/',PAGES_DIRECTORY))-1;
965
		// Work-out how many ../'s we need to get to the index page
966
		$index_location = '';
967
		for($i = 0; $i < $level + $pages_dir_depth; $i++) {
968
			$index_location .= '../';
969
		}
970
		$content = ''.
971
'<?php
972
$page_id = '.$page_id.';
973
require("'.$index_location.'config.php");
974
require(WB_PATH."/index.php");
975
?>';
976
		$handle = fopen($filename, 'w');
977
		fwrite($handle, $content);
978
		fclose($handle);
979
		// Chmod the file
980
		change_mode($filename, 'file');
981
	}
982
}
983

    
984
// Function for working out a file mime type (if the in-built PHP one is not enabled)
985
if(!function_exists('mime_content_type')) {
986
   function mime_content_type($file) {
987
       $file = escapeshellarg($file);
988
       return trim(`file -bi $file`);
989
   }
990
}
991

    
992
// Generate a thumbnail from an image
993
function make_thumb($source, $destination, $size) {
994
	// Check if GD is installed
995
	if(extension_loaded('gd') AND function_exists('imageCreateFromJpeg')) {
996
		// First figure out the size of the thumbnail
997
		list($original_x, $original_y) = getimagesize($source);
998
		if ($original_x > $original_y) {
999
			$thumb_w = $size;
1000
			$thumb_h = $original_y*($size/$original_x);
1001
		}
1002
		if ($original_x < $original_y) {
1003
			$thumb_w = $original_x*($size/$original_y);
1004
			$thumb_h = $size;
1005
		}
1006
		if ($original_x == $original_y) {
1007
			$thumb_w = $size;
1008
			$thumb_h = $size;	
1009
		}
1010
		// Now make the thumbnail
1011
		$source = imageCreateFromJpeg($source);
1012
		$dst_img = ImageCreateTrueColor($thumb_w, $thumb_h);
1013
		imagecopyresampled($dst_img,$source,0,0,0,0,$thumb_w,$thumb_h,$original_x,$original_y);
1014
		imagejpeg($dst_img, $destination);
1015
		// Clear memory
1016
		imagedestroy($dst_img);
1017
	   imagedestroy($source);
1018
	   // Return true
1019
	   return true;
1020
   } else {
1021
   	return false;
1022
   }
1023
}
1024

    
1025
// Function to work-out a single part of an octal permission value
1026
function extract_permission($octal_value, $who, $action) {
1027
	// Make sure the octal value is 4 chars long
1028
	if(strlen($octal_value) == 0) {
1029
		$octal_value = '0000';
1030
	} elseif(strlen($octal_value) == 1) {
1031
		$octal_value = '000'.$octal_value;
1032
	} elseif(strlen($octal_value) == 2) {
1033
		$octal_value = '00'.$octal_value;
1034
	} elseif(strlen($octal_value) == 3) {
1035
		$octal_value = '0'.$octal_value;
1036
	} elseif(strlen($octal_value) == 4) {
1037
		$octal_value = ''.$octal_value;
1038
	} else {
1039
		$octal_value = '0000';
1040
	}
1041
	// Work-out what position of the octal value to look at
1042
	switch($who) {
1043
	case 'u':
1044
		$position = '1';
1045
		break;
1046
	case 'user':
1047
		$position = '1';
1048
		break;
1049
	case 'g':
1050
		$position = '2';
1051
		break;
1052
	case 'group':
1053
		$position = '2';
1054
		break;
1055
	case 'o':
1056
		$position = '3';
1057
		break;
1058
	case 'others':
1059
		$position = '3';
1060
		break;
1061
	}
1062
	// Work-out how long the octal value is and ajust acording
1063
	if(strlen($octal_value) == 4) {
1064
		$position = $position+1;
1065
	} elseif(strlen($octal_value) != 3) {
1066
		exit('Error');
1067
	}
1068
	// Now work-out what action the script is trying to look-up
1069
	switch($action) {
1070
	case 'r':
1071
		$action = 'r';
1072
		break;
1073
	case 'read':
1074
		$action = 'r';
1075
		break;
1076
	case 'w':
1077
		$action = 'w';
1078
		break;
1079
	case 'write':
1080
		$action = 'w';
1081
		break;
1082
	case 'e':
1083
		$action = 'e';
1084
		break;
1085
	case 'execute':
1086
		$action = 'e';
1087
		break;
1088
	}
1089
	// Get the value for "who"
1090
	$value = substr($octal_value, $position-1, 1);
1091
	// Now work-out the details of the value
1092
	switch($value) {
1093
	case '0':
1094
		$r = false;
1095
		$w = false;
1096
		$e = false;
1097
		break;
1098
	case '1':
1099
		$r = false;
1100
		$w = false;
1101
		$e = true;
1102
		break;
1103
	case '2':
1104
		$r = false;
1105
		$w = true;
1106
		$e = false;
1107
		break;
1108
	case '3':
1109
		$r = false;
1110
		$w = true;
1111
		$e = true;
1112
		break;
1113
	case '4':
1114
		$r = true;
1115
		$w = false;
1116
		$e = false;
1117
		break;
1118
	case '5':
1119
		$r = true;
1120
		$w = false;
1121
		$e = true;
1122
		break;
1123
	case '6':
1124
		$r = true;
1125
		$w = true;
1126
		$e = false;
1127
		break;
1128
	case '7':
1129
		$r = true;
1130
		$w = true;
1131
		$e = true;
1132
		break;
1133
	default:
1134
		$r = false;
1135
		$w = false;
1136
		$e = false;
1137
	}
1138
	// And finally, return either true or false
1139
	return $$action;
1140
}
1141

    
1142
// Function to delete a page
1143
function delete_page($page_id) {
1144
	
1145
	global $admin, $database, $MESSAGE;
1146
	
1147
	// Find out more about the page
1148
	$database = new database();
1149
	$query = "SELECT page_id,menu_title,page_title,level,link,parent,modified_by,modified_when FROM ".TABLE_PREFIX."pages WHERE page_id = '$page_id'";
1150
	$results = $database->query($query);
1151
	if($database->is_error()) {
1152
		$admin->print_error($database->get_error());
1153
	}
1154
	if($results->numRows() == 0) {
1155
		$admin->print_error($MESSAGE['PAGES']['NOT_FOUND']);
1156
	}
1157
	$results_array = $results->fetchRow();
1158
	$parent = $results_array['parent'];
1159
	$level = $results_array['level'];
1160
	$link = $results_array['link'];
1161
	$page_title = ($results_array['page_title']);
1162
	$menu_title = ($results_array['menu_title']);
1163
	
1164
	// Get the sections that belong to the page
1165
	$query_sections = $database->query("SELECT section_id,module FROM ".TABLE_PREFIX."sections WHERE page_id = '$page_id'");
1166
	if($query_sections->numRows() > 0) {
1167
		while($section = $query_sections->fetchRow()) {
1168
			// Set section id
1169
			$section_id = $section['section_id'];
1170
			// Include the modules delete file if it exists
1171
			if(file_exists(WB_PATH.'/modules/'.$section['module'].'/delete.php')) {
1172
				require(WB_PATH.'/modules/'.$section['module'].'/delete.php');
1173
			}
1174
		}
1175
	}
1176
	
1177
	// Update the pages table
1178
	$query = "DELETE FROM ".TABLE_PREFIX."pages WHERE page_id = '$page_id'";
1179
	$database->query($query);
1180
	if($database->is_error()) {
1181
		$admin->print_error($database->get_error());
1182
	}
1183
	
1184
	// Update the sections table
1185
	$query = "DELETE FROM ".TABLE_PREFIX."sections WHERE page_id = '$page_id'";
1186
	$database->query($query);
1187
	if($database->is_error()) {
1188
		$admin->print_error($database->get_error());
1189
	}
1190
	
1191
	// Include the ordering class or clean-up ordering
1192
	require_once(WB_PATH.'/framework/class.order.php');
1193
	$order = new order(TABLE_PREFIX.'pages', 'position', 'page_id', 'parent');
1194
	$order->clean($parent);
1195
	
1196
	// Unlink the page access file and directory
1197
	$directory = WB_PATH.PAGES_DIRECTORY.$link;
1198
	$filename = $directory.'.php';
1199
	$directory .= '/';
1200
	if(file_exists($filename) && substr($filename,0,1<>'.')) {
1201
		if(!is_writable(WB_PATH.PAGES_DIRECTORY.'/')) {
1202
			$admin->print_error($MESSAGE['PAGES']['CANNOT_DELETE_ACCESS_FILE']);
1203
		} else {
1204
			unlink($filename);
1205
			if(file_exists($directory)) {
1206
				rm_full_dir($directory);
1207
			}
1208
		}
1209
	}
1210
	
1211
}
1212

    
1213
// Load module into DB
1214
function load_module($directory, $install = false) {
1215
	global $database,$admin,$MESSAGE;
1216
	if(file_exists($directory.'/info.php')) {
1217
		require($directory.'/info.php');
1218
		if(isset($module_name)) {
1219
			if(!isset($module_license)) { $module_license = 'GNU General Public License'; }
1220
			if(!isset($module_platform) AND isset($module_designed_for)) { $module_platform = $module_designed_for; }
1221
			if(!isset($module_function) AND isset($module_type)) { $module_function = $module_type; }
1222
			$module_function = strtolower($module_function);
1223
			// Check that it doesn't already exist
1224
			$result = $database->query("SELECT addon_id FROM ".TABLE_PREFIX."addons WHERE directory = '".$module_directory."' LIMIT 0,1");
1225
			if($result->numRows() == 0) {
1226
				// Load into DB
1227
				$query = "INSERT INTO ".TABLE_PREFIX."addons ".
1228
				"(directory,name,description,type,function,version,platform,author,license) ".
1229
				"VALUES ('$module_directory','$module_name','".addslashes($module_description)."','module',".
1230
				"'$module_function','$module_version','$module_platform','$module_author','$module_license')";
1231
				$database->query($query);
1232
				// Run installation script
1233
				if($install == true) {
1234
					if(file_exists($directory.'/install.php')) {
1235
						require($directory.'/install.php');
1236
					}
1237
				}
1238
			}
1239
		}
1240
	}
1241
}
1242

    
1243
// Load template into DB
1244
function load_template($directory) {
1245
	global $database;
1246
	if(file_exists($directory.'/info.php')) {
1247
		require($directory.'/info.php');
1248
		if(isset($template_name)) {
1249
			if(!isset($template_license)) { $template_license = 'GNU General Public License'; }
1250
			if(!isset($template_platform) AND isset($template_designed_for)) { $template_platform = $template_designed_for; }
1251
			// Check that it doesn't already exist
1252
			$result = $database->query("SELECT addon_id FROM ".TABLE_PREFIX."addons WHERE directory = '".$template_directory."' LIMIT 0,1");
1253
			if($result->numRows() == 0) {
1254
				// Load into DB
1255
				$query = "INSERT INTO ".TABLE_PREFIX."addons ".
1256
				"(directory,name,description,type,version,platform,author,license) ".
1257
				"VALUES ('$template_directory','$template_name','".addslashes($template_description)."','template',".
1258
				"'$template_version','$template_platform','$template_author','$template_license')";
1259
				$database->query($query);
1260
			}
1261
		}
1262
	}
1263
}
1264

    
1265
// Load language into DB
1266
function load_language($file) {
1267
	global $database;
1268
	if(file_exists($file)) {
1269
		require($file);
1270
		if(isset($language_name)) {
1271
			if(!isset($language_license)) { $language_license = 'GNU General Public License'; }
1272
			if(!isset($language_platform) AND isset($language_designed_for)) { $language_platform = $language_designed_for; }
1273
			// Check that it doesn't already exist
1274
			$result = $database->query("SELECT addon_id FROM ".TABLE_PREFIX."addons WHERE directory = '".$language_code."' LIMIT 0,1");
1275
			if($result->numRows() == 0) {
1276
				// Load into DB
1277
				$query = "INSERT INTO ".TABLE_PREFIX."addons ".
1278
				"(directory,name,type,version,platform,author,license) ".
1279
				"VALUES ('$language_code','$language_name','language',".
1280
				"'$language_version','$language_platform','$language_author','$language_license')";
1281
	 		$database->query($query);
1282
			}
1283
		}
1284
	}
1285
}
1286

    
1287
// Upgrade module info in DB, optionally start upgrade script
1288
function upgrade_module($directory, $upgrade = false) {
1289
	global $database, $admin, $MESSAGE;
1290
	$directory = WB_PATH . "/modules/$directory";
1291
	if(file_exists($directory.'/info.php')) {
1292
		require($directory.'/info.php');
1293
		if(isset($module_name)) {
1294
			if(!isset($module_license)) { $module_license = 'GNU General Public License'; }
1295
			if(!isset($module_platform) AND isset($module_designed_for)) { $module_platform = $module_designed_for; }
1296
			if(!isset($module_function) AND isset($module_type)) { $module_function = $module_type; }
1297
			$module_function = strtolower($module_function);
1298
			// Check that it does already exist
1299
			$result = $database->query("SELECT addon_id FROM ".TABLE_PREFIX."addons WHERE directory = '".$module_directory."' LIMIT 0,1");
1300
			if($result->numRows() > 0) {
1301
				// Update in DB
1302
				$query = "UPDATE " . TABLE_PREFIX . "addons SET " .
1303
					"version = '$module_version', " .
1304
					"description = '" . addslashes($module_description) . "', " .
1305
					"platform = '$module_platform', " .
1306
					"author = '$module_author', " .
1307
					"license = '$module_license'" .
1308
					"WHERE directory = '$module_directory'";
1309
				$database->query($query);
1310
				// Run upgrade script
1311
				if($upgrade == true) {
1312
					if(file_exists($directory.'/upgrade.php')) {
1313
						require($directory.'/upgrade.php');
1314
					}
1315
				}
1316
			}
1317
		}
1318
	}
1319
}
1320

    
1321
?>
(11-11/13)