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1
<?php
2

    
3
// $Id: functions.php 476 2007-06-09 06:28:08Z Ruebenwurzel $
4

    
5
/*
6

    
7
 Website Baker Project <http://www.websitebaker.org/>
8
 Copyright (C) 2004-2007, 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
		$query_home_folders = $database->query("SELECT home_folder FROM ".TABLE_PREFIX."users WHERE home_folder != '".$admin->get_home_folder()."'");
161
		if($query_home_folders->numRows() > 0) {
162
			while($folder = $query_home_folders->fetchRow()) {
163
				$home_folders[$folder['home_folder']] = $folder['home_folder'];
164
			}
165
		}
166
		function remove_home_subs($directory = '/', $home_folders) {
167
			if($handle = opendir(WB_PATH.MEDIA_DIRECTORY.$directory)) {
168
				// Loop through the dirs to check the home folders sub-dirs are not shown
169
			   while(false !== ($file = readdir($handle))) {
170
					if(substr($file, 0, 1) != '.' AND $file != '.svn' AND $file != 'index.php') {
171
						if(is_dir(WB_PATH.MEDIA_DIRECTORY.$directory.'/'.$file)) {
172
							if($directory != '/') { $file = $directory.'/'.$file; } else { $file = '/'.$file; }
173
							foreach($home_folders AS $hf) {
174
								$hf_length = strlen($hf);
175
								if($hf_length > 0) {
176
									if(substr($file, 0, $hf_length+1) == $hf) {
177
										$home_folders[$file] = $file;
178
									}
179
								}
180
							}
181
							$home_folders = remove_home_subs($file, $home_folders);
182
						}
183
					}
184
				}
185
			}
186
			return $home_folders;
187
		}
188
		$home_folders = remove_home_subs('/', $home_folders);
189
	}
190
	return $home_folders;
191
}
192

    
193
// Function to create directories
194
function make_dir($dir_name, $dir_mode = OCTAL_DIR_MODE) {
195
	if(!file_exists($dir_name)) {
196
		$umask = umask(0);
197
		mkdir($dir_name, $dir_mode);
198
		umask($umask);
199
		return true;
200
	} else {
201
		return false;	
202
	}
203
}
204

    
205
// Function to chmod files and directories
206
function change_mode($name) {
207
	if(OPERATING_SYSTEM != 'windows') {
208
		// Only chmod if os is not windows
209
		if(is_dir($name)) {
210
			$mode = OCTAL_DIR_MODE;
211
		} else {
212
			$mode = OCTAL_FILE_MODE;
213
		}
214
		if(file_exists($name)) {
215
			$umask = umask(0);
216
			chmod($name, $mode);
217
			umask($umask);
218
			return true;
219
		} else {
220
			return false;	
221
		}
222
	} else {
223
		return true;
224
	}
225
}
226

    
227
// Function to figure out if a parent exists
228
function is_parent($page_id) {
229
	global $database;
230
	// Get parent
231
	$query = $database->query("SELECT parent FROM ".TABLE_PREFIX."pages WHERE page_id = '$page_id'");
232
	$fetch = $query->fetchRow();
233
	// If parent isnt 0 return its ID
234
	if($fetch['parent'] == '0') {
235
		return false;
236
	} else {
237
		return $fetch['parent'];
238
	}
239
}
240

    
241
// Function to work out level
242
function level_count($page_id) {
243
	global $database;
244
	// Get page parent
245
	$query_page = $database->query("SELECT parent FROM ".TABLE_PREFIX."pages WHERE page_id = '$page_id' LIMIT 1");
246
	$fetch_page = $query_page->fetchRow();
247
	$parent = $fetch_page['parent'];
248
	if($parent > 0) {
249
		// Get the level of the parent
250
		$query_parent = $database->query("SELECT level FROM ".TABLE_PREFIX."pages WHERE page_id = '$parent' LIMIT 1");
251
		$fetch_parent = $query_parent->fetchRow();
252
		$level = $fetch_parent['level'];
253
		return $level+1;
254
	} else {
255
		return 0;
256
	}
257
}
258

    
259
// Function to work out root parent
260
function root_parent($page_id) {
261
	global $database;
262
	// Get page details
263
	$query_page = $database->query("SELECT parent,level FROM ".TABLE_PREFIX."pages WHERE page_id = '$page_id' LIMIT 1");
264
	$fetch_page = $query_page->fetchRow();
265
	$parent = $fetch_page['parent'];
266
	$level = $fetch_page['level'];	
267
	if($level == 1) {
268
		return $parent;
269
	} elseif($parent == 0) {
270
		return $page_id;
271
	} else {
272
		// Figure out what the root parents id is
273
		$parent_ids = array_reverse(get_parent_ids($page_id));
274
		return $parent_ids[0];
275
	}
276
}
277

    
278
// Function to get page title
279
function get_page_title($id) {
280
	global $database;
281
	// Get title
282
	$query = $database->query("SELECT page_title FROM ".TABLE_PREFIX."pages WHERE page_id = '$id'");
283
	$fetch = $query->fetchRow();
284
	// Return title
285
	return $fetch['page_title'];
286
}
287

    
288
// Function to get a pages menu title
289
function get_menu_title($id) {
290
	// Connect to the database
291
	$database = new database();
292
	// Get title
293
	$query = $database->query("SELECT menu_title FROM ".TABLE_PREFIX."pages WHERE page_id = '$id'");
294
	$fetch = $query->fetchRow();
295
	// Return title
296
	return $fetch['menu_title'];
297
}
298

    
299
// Function to get all parent page titles
300
function get_parent_titles($parent_id) {
301
	$titles[] = get_menu_title($parent_id);
302
	if(is_parent($parent_id) != false) {
303
		$parent_titles = get_parent_titles(is_parent($parent_id));
304
		$titles = array_merge($titles, $parent_titles);
305
	}
306
	return $titles;
307
}
308

    
309
// Function to get all parent page id's
310
function get_parent_ids($parent_id) {
311
	$ids[] = $parent_id;
312
	if(is_parent($parent_id) != false) {
313
		$parent_ids = get_parent_ids(is_parent($parent_id));
314
		$ids = array_merge($ids, $parent_ids);
315
	}
316
	return $ids;
317
}
318

    
319
// Function to genereate page trail
320
function get_page_trail($page_id) {
321
	return implode(',', array_reverse(get_parent_ids($page_id)));
322
}
323

    
324
// Function to get all sub pages id's
325
function get_subs($parent, $subs) {
326
	// Connect to the database
327
	$database = new database();
328
	// Get id's
329
	$query = $database->query("SELECT page_id FROM ".TABLE_PREFIX."pages WHERE parent = '$parent'");
330
	if($query->numRows() > 0) {
331
		while($fetch = $query->fetchRow()) {
332
			$subs[] = $fetch['page_id'];
333
			// Get subs of this sub
334
			$subs = get_subs($fetch['page_id'], $subs);
335
		}
336
	}
337
	// Return subs array
338
	return $subs;
339
}
340

    
341
// Function as replecement for php's htmlspecialchars()
342
function my_htmlspecialchars($string) {
343
	$string = preg_replace("/&(?=[#a-z0-9]+;)/i", "_x_", $string);
344
	$string = strtr($string, array("<"=>"&lt;", ">"=>"&gt;", "&"=>"&amp;", "\""=>"&quot;", "\'"=>"&#039;"));
345
	$string = preg_replace("/_x_(?=[#a-z0-9]+;)/i", "&", $string);
346
	return($string);
347
}
348

    
349
// Function to convert a string from $from- to $to-encoding, using mysql
350
function my_mysql_iconv($string, $from, $to) {
351
	// keep current character set values:
352
	$character_set_database = mysql_result(mysql_query("SELECT @@character_set_client"),0,0);
353
	$character_set_results = mysql_result(mysql_query("SELECT @@character_set_results"),0,0);
354
	$collation_results = mysql_result(mysql_query("SELECT @@collation_connection"),0,0);
355
	mysql_query("SET character_set_client=$from");
356
	mysql_query("SET character_set_results=$to");
357
	mysql_query("SET collation_connection=utf8_unicode_ci");
358
	$string_escaped = mysql_real_escape_string($string);
359
	$converted_string = mysql_result(mysql_query("SELECT '$string_escaped'"),0,0);
360
	// restore previous character set values:
361
	mysql_query("SET character_set_client=$character_set_database");
362
	mysql_query("SET character_set_results=$character_set_results");
363
	mysql_query("SET collation_connection=$collation_results");
364
	return $converted_string;
365
}
366

    
367
// Function as wrapper for mb_convert_encoding
368
// converts $charset_in to $charset_out or 
369
// UTF-8 to HTML-ENTITIES or HTML-ENTITIES to UTF-8
370
function mb_convert_encoding_wrapper($string, $charset_out, $charset_in) {
371
	if ($charset_out == $charset_in) {
372
		return $string;
373
	}
374
	$use_iconv = true;
375
	$use_mbstring = true;
376
	if(version_compare(PHP_VERSION, "5.1.0", "<")) {
377
		$use_mbstring = false; // don't rely on mb_convert_encoding if php<5.1.0
378
		$use_iconv = false; // don't rely on iconv neither
379
	}
380
	
381
	// try mb_convert_encoding(). This can handle to or from HTML-ENTITIES, too
382
	if ($use_mbstring && function_exists('mb_convert_encoding')) {
383
		// there's no GB2312 or ISO-8859-11 encoding in php's mb_* functions
384
		if ($charset_in=='ISO-8859-11' || $charset_in=='GB2312') {
385
			if ($use_iconv && function_exists('iconv')) {
386
				$string = iconv($charset_in, 'UTF-8', $string);
387
			}
388
			else {
389
				if ($charset_in == 'GB2312') {
390
					$string=my_mysql_iconv($string, 'gb2312', 'utf8');
391
				} else {
392
					$string=my_mysql_iconv($string, 'tis620', 'utf8');
393
				}
394
			}
395
			$charset_in='UTF-8';
396
			if ($charset_out == 'UTF-8') {
397
				return $string;
398
			}
399
		}
400
		if ($charset_out=='ISO-8859-11' || $charset_out=='GB2312') {
401
			$string=mb_convert_encoding($string, 'UTF-8', $charset_in);
402
			if ($use_iconv && function_exists('iconv')) {
403
				$string = iconv('UTF-8', $charset_out, $string);
404
			}
405
			else {
406
				if ($charset_out == 'GB2312') {
407
					$string=my_mysql_iconv($string, 'utf8', 'gb2312');
408
				} else {
409
					$string=my_mysql_iconv($string, 'utf8', 'tis620');
410
				}
411
			}
412
		} else {
413
			$string = strtr($string, array("&lt;"=>"&_lt;", "&gt;"=>"&_gt;", "&amp;"=>"&_amp;", "&quot;"=>"&_quot;", "&#039;"=>"&_#039;"));
414
			$string=mb_convert_encoding($string, $charset_out, $charset_in);
415
			$string = strtr($string, array("&_lt;"=>"&lt;", "&_gt;"=>"&gt;", "&_amp;"=>"&amp;", "&_quot;"=>"&quot;", "&_#039;"=>"&#039;"));
416
		}
417
		return $string;
418
	}
419

    
420
	// try iconv(). This can't handle to or from HTML-ENTITIES.
421
	if ($use_iconv && function_exists('iconv') && $charset_out!='HTML-ENTITIES' && $charset_in!='HTML-ENTITIES' ) {
422
		$string = iconv($charset_in, $charset_out, $string);
423
		return $string;
424
	}
425

    
426
	// do the UTF-8->HTML-ENTITIES or HTML-ENTITIES->UTF-8 translation if mb_convert_encoding isn't available
427
	if (($charset_in=='HTML-ENTITIES' && $charset_out=='UTF-8') || ($charset_in=='UTF-8' && $charset_out=='HTML-ENTITIES')) {
428
		$string = string_decode_encode_entities($string, $charset_out, $charset_in);
429
		return $string;
430
	}
431

    
432
	// mb_convert_encoding() and iconv() aren't available, so use my_mysql_iconv()
433
	if ($charset_in == 'ISO-8859-1') { $mysqlcharset_from = 'latin1'; }
434
	elseif ($charset_in == 'ISO-8859-2') { $mysqlcharset_from = 'latin2'; }
435
	elseif ($charset_in == 'ISO-8859-3') { $mysqlcharset_from = 'latin1'; }
436
	elseif ($charset_in == 'ISO-8859-4') { $mysqlcharset_from = 'latin7'; }
437
	elseif ($charset_in == 'ISO-8859-5') { $string = convert_cyr_string ($string, "iso8859-5", "windows-1251" ); $mysqlcharset_from = 'cp1251'; }
438
	elseif ($charset_in == 'ISO-8859-6') { $mysqlcharset_from = ''; } //?
439
	elseif ($charset_in == 'ISO-8859-7') { $mysqlcharset_from = 'greek'; }
440
	elseif ($charset_in == 'ISO-8859-8') { $mysqlcharset_from = 'hebrew'; }
441
	elseif ($charset_in == 'ISO-8859-9') { $mysqlcharset_from = 'latin5'; }
442
	elseif ($charset_in == 'ISO-8859-10') { $mysqlcharset_from = 'latin1'; }
443
	elseif ($charset_in == 'BIG5') { $mysqlcharset_from = 'big5'; }
444
	elseif ($charset_in == 'ISO-2022-JP') { $mysqlcharset_from = ''; } //?
445
	elseif ($charset_in == 'ISO-2022-KR') { $mysqlcharset_from = ''; } //?
446
	elseif ($charset_in == 'GB2312') { $mysqlcharset_from = 'gb2312'; }
447
	elseif ($charset_in == 'ISO-8859-11') { $mysqlcharset_from = 'tis620'; }
448
	elseif ($charset_in == 'UTF-8') { $mysqlcharset_from = 'utf8'; }
449
	else { $mysqlcharset_from = 'latin1'; }
450

    
451
	if ($charset_out == 'ISO-8859-1') { $mysqlcharset_to = 'latin1'; }
452
	elseif ($charset_out == 'ISO-8859-2') { $mysqlcharset_to = 'latin2'; }
453
	elseif ($charset_out == 'ISO-8859-3') { $mysqlcharset_to = 'latin1'; }
454
	elseif ($charset_out == 'ISO-8859-4') { $mysqlcharset_to = 'latin7'; }
455
	elseif ($charset_out == 'ISO-8859-5') { $mysqlcharset_to = 'cp1251'; } // use convert_cyr_string afterwards
456
	elseif ($charset_out == 'ISO-8859-6') { $mysqlcharset_to = ''; } //?
457
	elseif ($charset_out == 'ISO-8859-7') { $mysqlcharset_to = 'greek'; }
458
	elseif ($charset_out == 'ISO-8859-8') { $mysqlcharset_to = 'hebrew'; }
459
	elseif ($charset_out == 'ISO-8859-9') { $mysqlcharset_to = 'latin5'; }
460
	elseif ($charset_out == 'ISO-8859-10') { $mysqlcharset_to = 'latin1'; }
461
	elseif ($charset_out == 'BIG5') { $mysqlcharset_to = 'big5'; }
462
	elseif ($charset_out == 'ISO-2022-JP') { $mysqlcharset_to = ''; } //?
463
	elseif ($charset_out == 'ISO-2022-KR') { $mysqlcharset_to = ''; } //?
464
	elseif ($charset_out == 'GB2312') { $mysqlcharset_to = 'gb2312'; }
465
	elseif ($charset_out == 'ISO-8859-11') { $mysqlcharset_to = 'tis620'; }
466
	elseif ($charset_out == 'UTF-8') { $mysqlcharset_to = 'utf8'; }
467
	else { $mysqlcharset_to = 'latin1'; }
468

    
469
	if ($mysqlcharset_from!="" && $mysqlcharset_to!="" && $mysqlcharset_from!=$mysqlcharset_to) {
470
		$string=my_mysql_iconv($string, $mysqlcharset_from, $mysqlcharset_to);
471
		if ($mysqlcharset_to == 'cp1251') { 
472
			$string = convert_cyr_string ($string, "windows-1251", "iso-8859-5" );
473
		}
474
		return($string);
475
	}
476

    
477
	// $string is unchanged. This will happen if we have to deal with ISO-8859-6 or ISO-2022-JP or -KR
478
	// and mbstring _and_ iconv aren't available.
479
	return $string;
480
}
481

    
482
// Decodes or encodes html-entities. Works for utf-8 only!
483
function string_decode_encode_entities($string, $out='HTML-ENTITIES', $in='UTF-8') {
484
	if(!(($in=='UTF-8' || $in=='HTML-ENTITIES') && ($out=='UTF-8' || $out=='HTML-ENTITIES'))) {
485
		return $string;
486
	}
487
	$named_to_numbered_entities=array(
488
		'&Aacute;'=>'&#193;','&aacute;'=>'&#225;',
489
		'&Acirc;'=>'&#194;','&acirc;'=>'&#226;','&acute;'=>'&#180;','&AElig;'=>'&#198;','&aelig;'=>'&#230;',
490
		'&Agrave;'=>'&#192;','&agrave;'=>'&#224;','&alefsym;'=>'&#8501;','&Alpha;'=>'&#913;','&alpha;'=>'&#945;',
491
		'&amp;'=>'&#38;','&and;'=>'&#8743;','&ang;'=>'&#8736;','&apos;'=>'&#39;','&Aring;'=>'&#197;','&aring;'=>'&#229;',
492
		'&asymp;'=>'&#8776;','&Atilde;'=>'&#195;','&atilde;'=>'&#227;','&Auml;'=>'&#196;','&auml;'=>'&#228;',
493
		'&bdquo;'=>'&#8222;','&Beta;'=>'&#914;','&beta;'=>'&#946;','&brvbar;'=>'&#166;','&bull;'=>'&#8226;',
494
		'&cap;'=>'&#8745;','&Ccedil;'=>'&#199;','&ccedil;'=>'&#231;','&cedil;'=>'&#184;','&cent;'=>'&#162;',
495
		'&Chi;'=>'&#935;','&chi;'=>'&#967;','&circ;'=>'&#710;','&clubs;'=>'&#9827;','&cong;'=>'&#8773;',
496
		'&copy;'=>'&#169;','&crarr;'=>'&#8629;','&cup;'=>'&#8746;','&curren;'=>'&#164;','&Dagger;'=>'&#8225;',
497
		'&dagger;'=>'&#8224;','&dArr;'=>'&#8659;','&darr;'=>'&#8595;','&deg;'=>'&#176;','&Delta;'=>'&#916;',
498
		'&delta;'=>'&#948;','&diams;'=>'&v#9830;','&divide;'=>'&#247;','&Eacute;'=>'&#201;','&eacute;'=>'&#233;',
499
		'&Ecirc;'=>'&#202;','&ecirc;'=>'&#234;','&Egrave;'=>'&#200;','&egrave;'=>'&#232;','&empty;'=>'&#8709;',
500
		'&emsp;'=>'&#8195;','&ensp;'=>'&#8194;','&Epsilon;'=>'&#917;','&epsilon;'=>'&#949;','&equiv;'=>'&#8801;',
501
		'&Eta;'=>'&#919;','&eta;'=>'&#951;','&ETH;'=>'&#208;','&eth;'=>'&#240;','&Euml;'=>'&#203;','&euml;'=>'&#235;',
502
		'&euro;'=>'&#8364;','&exist;'=>'&#8707;','&fnof;'=>'&#402;','&forall;'=>'&#8704;','&frac12;'=>'&#189;',
503
		'&frac14;'=>'&#188;','&frac34;'=>'&#190;','&frasl;'=>'&#8260;','&Gamma;'=>'&#915;','&gamma;'=>'&#947;',
504
		'&ge;'=>'&#8805;','&gt;'=>'&#62;','&hArr;'=>'&#8660;','&harr;'=>'&#8596;','&hearts;'=>'&#9829;',
505
		'&hellip;'=>'&#8230;','&Iacute;'=>'&#205;','&iacute;'=>'&#237;','&Icirc;'=>'&#206;','&icirc;'=>'&#238;',
506
		'&iexcl;'=>'&#161;','&Igrave;'=>'&#204;','&igrave;'=>'&#236;','&image;'=>'&#8465;','&infin;'=>'&#8734;',
507
		'&int;'=>'&#8747;','&Iota;'=>'&#921;','&iota;'=>'&#953;','&iquest;'=>'&#191;','&isin;'=>'&#8712;',
508
		'&Iuml;'=>'&#207;','&iuml;'=>'&#239;','&Kappa;'=>'&#922;','&kappa;'=>'&#954;','&Lambda;'=>'&#923;',
509
		'&lambda;'=>'&#955;','&lang;'=>'&#9001;','&laquo;'=>'&#171;','&lArr;'=>'&#8656;','&larr;'=>'&#8592;',
510
		'&lceil;'=>'&#8968;','&ldquo;'=>'&#8220;','&le;'=>'&#8804;','&lfloor;'=>'&#8970;','&lowast;'=>'&#8727;',
511
		'&loz;'=>'&#9674;','&lrm;'=>'&#8206;','&lsaquo;'=>'&#8249;','&lsquo;'=>'&#8216;','&lt;'=>'&#60;',
512
		'&macr;'=>'&#175;','&mdash;'=>'&#8212;','&micro;'=>'&#181;','&middot;'=>'&#183;','&minus;'=>'&#8722;',
513
		'&Mu;'=>'&#924;','&mu;'=>'&#956;','&nabla;'=>'&#8711;','&nbsp;'=>'&#160;','&ndash;'=>'&#8211;',
514
		'&ne;'=>'&#8800;','&ni;'=>'&#8715;','&not;'=>'&#172;','&notin;'=>'&#8713;','&nsub;'=>'&#8836;',
515
		'&Ntilde;'=>'&#209;','&ntilde;'=>'&#241;','&Nu;'=>'&#925;','&nu;'=>'&#957;','&Oacute;'=>'&#211;',
516
		'&oacute;'=>'&#243;','&Ocirc;'=>'&#212;','&ocirc;'=>'&#244;','&OElig;'=>'&#338;','&oelig;'=>'&#339;',
517
		'&Ograve;'=>'&#210;','&ograve;'=>'&#242;','&oline;'=>'&#8254;','&Omega;'=>'&#937;','&omega;'=>'&#969;',
518
		'&Omicron;'=>'&#927;','&omicron;'=>'&#959;','&oplus;'=>'&#8853;','&or;'=>'&#8744;','&ordf;'=>'&#170;',
519
		'&ordm;'=>'&#186;','&Oslash;'=>'&#216;','&oslash;'=>'&#248;','&Otilde;'=>'&#213;','&otilde;'=>'&#245;',
520
		'&otimes;'=>'&#8855;','&Ouml;'=>'&#214;','&ouml;'=>'&#246;','&para;'=>'&#182;','&part;'=>'&#8706;',
521
		'&permil;'=>'&#8240;','&perp;'=>'&#8869;','&Phi;'=>'&#934;','&phi;'=>'&#966;','&Pi;'=>'&#928;',
522
		'&pi;'=>'&#960;','&piv;'=>'&#982;','&plusmn;'=>'&#177;','&pound;'=>'&#163;','&Prime;'=>'&#8243;',
523
		'&prime;'=>'&#8242;','&prod;'=>'&#8719;','&prop;'=>'&#8733;','&Psi;'=>'&#936;','&psi;'=>'&#968;',
524
		'&quot;'=>'&#34;','&radic;'=>'&#8730;','&rang;'=>'&#9002;','&raquo;'=>'&#187;','&rArr;'=>'&#8658;',
525
		'&rarr;'=>'&#8594;','&rceil;'=>'&#8969;','&rdquo;'=>'&#8221;','&real;'=>'&#8476;','&reg;'=>'&#174;',
526
		'&rfloor;'=>'&#8971;','&Rho;'=>'&#929;','&rho;'=>'&#961;','&rlm;'=>'&#8207;','&rsaquo;'=>'&#8250;',
527
		'&rsquo;'=>'&#8217;','&sbquo;'=>'&#8218;','&Scaron;'=>'&#352;','&scaron;'=>'&#353;','&sdot;'=>'&#8901;',
528
		'&sect;'=>'&#167;','&shy;'=>'&#173;','&Sigma;'=>'&#931;','&sigma;'=>'&#963;','&sigmaf;'=>'&#962;',
529
		'&sim;'=>'&#8764;','&spades;'=>'&#9824;','&sub;'=>'&#8834;','&sube;'=>'&#8838;','&sum;'=>'&#8721;',
530
		'&sup;'=>'&#8835;','&sup1;'=>'&#185;','&sup2;'=>'&#178;','&sup3;'=>'&#179;','&supe;'=>'&#8839;',
531
		'&szlig;'=>'&#223;','&Tau;'=>'&#932;','&tau;'=>'&#964;','&there4;'=>'&#8756;','&Theta;'=>'&#920;',
532
		'&theta;'=>'&#952;','&thetasym;'=>'&#977;','&thinsp;'=>'&#8201;','&THORN;'=>'&#222;','&thorn;'=>'&#254;',
533
		'&tilde;'=>'&#732;','&times;'=>'&#215;','&trade;'=>'&#8482;','&Uacute;'=>'&#218;','&uacute;'=>'&#250;',
534
		'&uArr;'=>'&#8657;','&uarr;'=>'&#8593;','&Ucirc;'=>'&#219;','&ucirc;'=>'&#251;','&Ugrave;'=>'&#217;',
535
		'&ugrave;'=>'&#249;','&uml;'=>'&#168;','&upsih;'=>'&#978;','&Upsilon;'=>'&#933;','&upsilon;'=>'&#965;',
536
		'&Uuml;'=>'&#220;','&uuml;'=>'&#252;','&weierp;'=>'&#8472;','&Xi;'=>'&#926;','&xi;'=>'&#958;',
537
		'&Yacute;'=>'&#221;','&yacute;'=>'&#253;','&yen;'=>'&#165;','&Yuml;'=>'&#376;','&yuml;'=>'&#255;',
538
		'&Zeta;'=>'&#918;','&zeta;'=>'&#950;','&zwj;'=>'&#8205;','&zwnj;'=>'&#8204;'
539
	);
540
	$numbered_to_named_entities=array(
541
		'&#193;'=>'&Aacute;','&#225;'=>'&aacute;','&#194;'=>'&Acirc;','&#226;'=>'&acirc;','&#180;'=>'&acute;',
542
		'&#198;'=>'&AElig;','&#230;'=>'&aelig;','&#192;'=>'&Agrave;','&#224;'=>'&agrave;','&#8501;'=>'&alefsym;',
543
		'&#913;'=>'&Alpha;','&#945;'=>'&alpha;','&#38;'=>'&amp;','&#8743;'=>'&and;','&#8736;'=>'&ang;',
544
		'&#39;'=>'&apos;','&#197;'=>'&Aring;','&#229;'=>'&aring;','&#8776;'=>'&asymp;','&#195;'=>'&Atilde;',
545
		'&#227;'=>'&atilde;','&#196;'=>'&Auml;','&#228;'=>'&auml;','&#8222;'=>'&bdquo;','&#914;'=>'&Beta;',
546
		'&#946;'=>'&beta;','&#166;'=>'&brvbar;','&#8226;'=>'&bull;','&#8745;'=>'&cap;','&#199;'=>'&Ccedil;',
547
		'&#231;'=>'&ccedil;','&#184;'=>'&cedil;','&#162;'=>'&cent;','&#935;'=>'&Chi;','&#967;'=>'&chi;',
548
		'&#710;'=>'&circ;','&#9827;'=>'&clubs;','&#8773;'=>'&cong;','&#169;'=>'&copy;','&#8629;'=>'&crarr;',
549
		'&#8746;'=>'&cup;','&#164;'=>'&curren;','&#8225;'=>'&Dagger;','&#8224;'=>'&dagger;','&#8659;'=>'&dArr;',
550
		'&#8595;'=>'&darr;','&#176;'=>'&deg;','&#916;'=>'&Delta;','&#948;'=>'&delta;','&v#9830;'=>'&diams;',
551
		'&#247;'=>'&divide;','&#201;'=>'&Eacute;','&#233;'=>'&eacute;','&#202;'=>'&Ecirc;','&#234;'=>'&ecirc;',
552
		'&#200;'=>'&Egrave;','&#232;'=>'&egrave;','&#8709;'=>'&empty;','&#8195;'=>'&emsp;','&#8194;'=>'&ensp;',
553
		'&#917;'=>'&Epsilon;','&#949;'=>'&epsilon;','&#8801;'=>'&equiv;','&#919;'=>'&Eta;','&#951;'=>'&eta;',
554
		'&#208;'=>'&ETH;','&#240;'=>'&eth;','&#203;'=>'&Euml;','&#235;'=>'&euml;','&#8364;'=>'&euro;',
555
		'&#8707;'=>'&exist;','&#402;'=>'&fnof;','&#8704;'=>'&forall;','&#189;'=>'&frac12;','&#188;'=>'&frac14;',
556
		'&#190;'=>'&frac34;','&#8260;'=>'&frasl;','&#915;'=>'&Gamma;','&#947;'=>'&gamma;','&#8805;'=>'&ge;',
557
		'&#62;'=>'&gt;','&#8660;'=>'&hArr;','&#8596;'=>'&harr;','&#9829;'=>'&hearts;','&#8230;'=>'&hellip;',
558
		'&#205;'=>'&Iacute;','&#237;'=>'&iacute;','&#206;'=>'&Icirc;','&#238;'=>'&icirc;','&#161;'=>'&iexcl;',
559
		'&#204;'=>'&Igrave;','&#236;'=>'&igrave;','&#8465;'=>'&image;','&#8734;'=>'&infin;','&#8747;'=>'&int;',
560
		'&#921;'=>'&Iota;','&#953;'=>'&iota;','&#191;'=>'&iquest;','&#8712;'=>'&isin;','&#207;'=>'&Iuml;',
561
		'&#239;'=>'&iuml;','&#922;'=>'&Kappa;','&#954;'=>'&kappa;','&#923;'=>'&Lambda;','&#955;'=>'&lambda;',
562
		'&#9001;'=>'&lang;','&#171;'=>'&laquo;','&#8656;'=>'&lArr;','&#8592;'=>'&larr;','&#8968;'=>'&lceil;',
563
		'&#8220;'=>'&ldquo;','&#8804;'=>'&le;','&#8970;'=>'&lfloor;','&#8727;'=>'&lowast;','&#9674;'=>'&loz;',
564
		'&#8206;'=>'&lrm;','&#8249;'=>'&lsaquo;','&#8216;'=>'&lsquo;','&#60;'=>'&lt;','&#175;'=>'&macr;',
565
		'&#8212;'=>'&mdash;','&#181;'=>'&micro;','&#183;'=>'&middot;','&#8722;'=>'&minus;','&#924;'=>'&Mu;',
566
		'&#956;'=>'&mu;','&#8711;'=>'&nabla;','&#160;'=>'&nbsp;','&#8211;'=>'&ndash;','&#8800;'=>'&ne;',
567
		'&#8715;'=>'&ni;','&#172;'=>'&not;','&#8713;'=>'&notin;','&#8836;'=>'&nsub;','&#209;'=>'&Ntilde;',
568
		'&#241;'=>'&ntilde;','&#925;'=>'&Nu;','&#957;'=>'&nu;','&#211;'=>'&Oacute;','&#243;'=>'&oacute;',
569
		'&#212;'=>'&Ocirc;','&#244;'=>'&ocirc;','&#338;'=>'&OElig;','&#339;'=>'&oelig;','&#210;'=>'&Ograve;',
570
		'&#242;'=>'&ograve;','&#8254;'=>'&oline;','&#937;'=>'&Omega;','&#969;'=>'&omega;','&#927;'=>'&Omicron;',
571
		'&#959;'=>'&omicron;','&#8853;'=>'&oplus;','&#8744;'=>'&or;','&#170;'=>'&ordf;','&#186;'=>'&ordm;',
572
		'&#216;'=>'&Oslash;','&#248;'=>'&oslash;','&#213;'=>'&Otilde;','&#245;'=>'&otilde;','&#8855;'=>'&otimes;',
573
		'&#214;'=>'&Ouml;','&#246;'=>'&ouml;','&#182;'=>'&para;','&#8706;'=>'&part;','&#8240;'=>'&permil;',
574
		'&#8869;'=>'&perp;','&#934;'=>'&Phi;','&#966;'=>'&phi;','&#928;'=>'&Pi;','&#960;'=>'&pi;','&#982;'=>'&piv;',
575
		'&#177;'=>'&plusmn;','&#163;'=>'&pound;','&#8243;'=>'&Prime;','&#8242;'=>'&prime;','&#8719;'=>'&prod;',
576
		'&#8733;'=>'&prop;','&#936;'=>'&Psi;','&#968;'=>'&psi;','&#34;'=>'&quot;','&#8730;'=>'&radic;',
577
		'&#9002;'=>'&rang;','&#187;'=>'&raquo;','&#8658;'=>'&rArr;','&#8594;'=>'&rarr;','&#8969;'=>'&rceil;',
578
		'&#8221;'=>'&rdquo;','&#8476;'=>'&real;','&#174;'=>'&reg;','&#8971;'=>'&rfloor;','&#929;'=>'&Rho;',
579
		'&#961;'=>'&rho;','&#8207;'=>'&rlm;','&#8250;'=>'&rsaquo;','&#8217;'=>'&rsquo;','&#8218;'=>'&sbquo;',
580
		'&#352;'=>'&Scaron;','&#353;'=>'&scaron;','&#8901;'=>'&sdot;','&#167;'=>'&sect;','&#173;'=>'&shy;',
581
		'&#931;'=>'&Sigma;','&#963;'=>'&sigma;','&#962;'=>'&sigmaf;','&#8764;'=>'&sim;','&#9824;'=>'&spades;',
582
		'&#8834;'=>'&sub;','&#8838;'=>'&sube;','&#8721;'=>'&sum;','&#8835;'=>'&sup;','&#185;'=>'&sup1;',
583
		'&#178;'=>'&sup2;','&#179;'=>'&sup3;','&#8839;'=>'&supe;','&#223;'=>'&szlig;','&#932;'=>'&Tau;',
584
		'&#964;'=>'&tau;','&#8756;'=>'&there4;','&#920;'=>'&Theta;','&#952;'=>'&theta;','&#977;'=>'&thetasym;',
585
		'&#8201;'=>'&thinsp;','&#222;'=>'&THORN;','&#254;'=>'&thorn;','&#732;'=>'&tilde;','&#215;'=>'&times;',
586
		'&#8482;'=>'&trade;','&#218;'=>'&Uacute;','&#250;'=>'&uacute;','&#8657;'=>'&uArr;','&#8593;'=>'&uarr;',
587
		'&#219;'=>'&Ucirc;','&#251;'=>'&ucirc;','&#217;'=>'&Ugrave;','&#249;'=>'&ugrave;','&#168;'=>'&uml;',
588
		'&#978;'=>'&upsih;','&#933;'=>'&Upsilon;','&#965;'=>'&upsilon;','&#220;'=>'&Uuml;','&#252;'=>'&uuml;',
589
		'&#8472;'=>'&weierp;','&#926;'=>'&Xi;','&#958;'=>'&xi;','&#221;'=>'&Yacute;','&#253;'=>'&yacute;',
590
		'&#165;'=>'&yen;','&#376;'=>'&Yuml;','&#255;'=>'&yuml;','&#918;'=>'&Zeta;','&#950;'=>'&zeta;','&#8205;'=>'&zwj;',
591
		'&#8204;'=>'&zwnj;'
592
	);
593
		
594
	if ($in == 'HTML-ENTITIES') {
595
		$string = strtr($string, $named_to_numbered_entities);
596
		$string = preg_replace("/&#([0-9]+);/e", "code_to_utf8($1)", $string);
597
	}
598
	elseif ($out == 'HTML-ENTITIES') {
599
		//$string = preg_replace("/&#([0-9]+);/e", "code_to_utf8($1)", $string);
600
		$char = "";
601
		while (strlen($string) > 0) {
602
			preg_match("/^(.)(.*)$/su", $string, $match);
603
			if (strlen($match[1]) > 1) {
604
				$char .= "&#".uniord($match[1]).";";
605
			} else $char .= $match[1];
606
			$string = $match[2];
607
		}
608
		$string = $char;
609
		$string = strtr($string, $numbered_to_named_entities);
610
	}
611
	return $string;
612
}
613

    
614
// support-function for string_decode_encode_entities()
615
function uniord($c) {
616
        $ud = 0;
617
        if (ord($c{0}) >= 0 && ord($c{0}) <= 127) $ud = ord($c{0});
618
        if (ord($c{0}) >= 192 && ord($c{0}) <= 223) $ud = (ord($c{0})-192)*64 + (ord($c{1})-128);
619
        if (ord($c{0}) >= 224 && ord($c{0}) <= 239) $ud = (ord($c{0})-224)*4096 + (ord($c{1})-128)*64 + (ord($c{2})-128);
620
        if (ord($c{0}) >= 240 && ord($c{0}) <= 247) $ud = (ord($c{0})-240)*262144 + (ord($c{1})-128)*4096 + (ord($c{2})-128)*64 + (ord($c{3})-128);
621
        if (ord($c{0}) >= 248 && ord($c{0}) <= 251) $ud = (ord($c{0})-248)*16777216 + (ord($c{1})-128)*262144 + (ord($c{2})-128)*4096 + (ord($c{3})-128)*64 + (ord($c{4})-128);
622
        if (ord($c{0}) >= 252 && ord($c{0}) <= 253) $ud = (ord($c{0})-252)*1073741824 + (ord($c{1})-128)*16777216 + (ord($c{2})-128)*262144 + (ord($c{3})-128)*4096 + (ord($c{4})-128)*64 + (ord($c{5})-128);
623
        if (ord($c{0}) >= 254 && ord($c{0}) <= 255) $ud = false; // error
624
        return $ud;
625
}
626
// support-function for mb_convert_encoding_wrapper()
627
function code_to_utf8($num) {
628
	if ($num <= 0x7F) {
629
		return chr($num);
630
	} elseif ($num <= 0x7FF) {
631
		return chr(($num >> 6) + 192) . chr(($num & 63) + 128);
632
	} elseif ($num <= 0xFFFF) {
633
		 return chr(($num >> 12) + 224) . chr((($num >> 6) & 63) + 128) . chr(($num & 63) + 128);
634
	} elseif ($num <= 0x1FFFFF) {
635
		return chr(($num >> 18) + 240) . chr((($num >> 12) & 63) + 128) . chr((($num >> 6) & 63) + 128) . chr(($num & 63) + 128);
636
	}
637
	return " ";
638
}
639

    
640
// Function to convert a string from mixed html-entities/umlauts to pure utf-8-umlauts
641
function string_to_utf8($string, $charset=DEFAULT_CHARSET) {
642
	$charset = strtoupper($charset);
643
	if ($charset == '') { $charset = 'ISO-8859-1'; }
644

    
645
	if (!is_UTF8($string)) {
646
		$string=mb_convert_encoding_wrapper($string, 'UTF-8', $charset);
647
	}
648
	// check if we really get UTF-8. We don't get UTF-8 if charset is ISO-8859-6 or ISO-2022-JP/KR
649
	// and mb_string AND iconv aren't available.
650
	if (is_UTF8($string)) {
651
		$string=mb_convert_encoding_wrapper($string, 'HTML-ENTITIES', 'UTF-8');
652
		$string=mb_convert_encoding_wrapper($string, 'UTF-8', 'HTML-ENTITIES');
653
	} else {
654
		// nothing we can do here :-(
655
	}
656
	return($string);
657
}
658

    
659
// function to check if a string is UTF-8
660
function is_UTF8 ($str) {
661
	if (strlen($str) < 4000) {
662
		// 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.
663
		// 4000 works for me ...
664
		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);
665
	}	else {
666
		$isUTF8 = true;
667
		while($str{0}) {
668
			if (preg_match("/^[\x09\x0A\x0D\x20-\x7E]/", $str)) { $str = substr($str, 1); continue; }
669
			if (preg_match("/^[\xC2-\xDF][\x80-\xBF]/", $str)) { $str = substr($str, 2); continue; }
670
			if (preg_match("/^\xE0[\xA0-\xBF][\x80-\xBF]/", $str)) { $str = substr($str, 3); continue; }
671
			if (preg_match("/^[\xE1-\xEC\xEE\xEF][\x80-\xBF]{2}/", $str)) { $str = substr($str, 3); continue; }
672
			if (preg_match("/^\xED[\x80-\x9F][\x80-\xBF]/", $str)) { $str = substr($str, 3); continue; }
673
			if (preg_match("/^\xF0[\x90-\xBF][\x80-\xBF]{2}/", $str)) { $str = substr($str, 4); continue; }
674
			if (preg_match("/^[\xF1-\xF3][\x80-\xBF]{3}/", $str)) { $str = substr($str, 4); continue; }
675
			if (preg_match("/^\xF4[\x80-\x8F][\x80-\xBF]{2}/", $str)) { $str = substr($str, 4); continue; }
676
			if (preg_match("/^$/", $str)) { break; }
677
			$isUTF8 = false;
678
			break;
679
		}
680
		return ($isUTF8);
681
	}
682
}
683

    
684
// Function to convert a string from mixed html-entities/umlauts to pure $charset_out-umlauts
685
function entities_to_umlauts($string, $charset_out=DEFAULT_CHARSET, $convert_htmlspecialchars=0) {
686
	$charset_out = strtoupper($charset_out);
687
	if ($charset_out == '') { $charset_out = 'ISO-8859-1'; }
688
	$charset_in = strtoupper(DEFAULT_CHARSET);
689
	
690
	// string to utf-8
691
	if ($charset_in == 'ISO-8859-1' || $charset_in == 'UTF-8') {
692
		if ($charset_in == 'ISO-8859-1') {
693
			$string=utf8_encode($string);
694
		}
695
		// decode html-entities
696
		if(preg_match("/&[#a-zA-Z0-9]+;/", $string)) {
697
			$string=string_decode_encode_entities($string, 'UTF-8', 'HTML-ENTITIES');
698
		}
699
	}
700
	else {
701
		$string = string_to_utf8($string); // will decode html-entities, too.
702
	}
703
	// string to $charset_out
704
	if($charset_out == 'ISO-8859-1') {
705
			$string=utf8_decode($string);
706
	}
707
	elseif($charset_out != 'UTF-8' && is_UTF8($string)) {
708
		$string=mb_convert_encoding_wrapper($string, $charset_out, 'UTF-8');
709
	}
710
	return $string;
711
}	
712

    
713
// Function to convert a string from mixed html-entitites/$charset_in-umlauts to pure html-entities
714
function umlauts_to_entities($string, $charset_in=DEFAULT_CHARSET, $convert_htmlspecialchars=0) {
715
	$charset_in = strtoupper($charset_in);
716
	if ($charset_in == "") { $charset_in = 'ISO-8859-1'; }
717

    
718
	// string to utf-8
719
	if ($charset_in == 'ISO-8859-1' || $charset_in == 'UTF-8') {
720
		if ($charset_in == 'ISO-8859-1') {
721
			$string=utf8_encode($string);
722
		}
723
		// encode html-entities
724
		$string=string_decode_encode_entities($string, 'HTML-ENTITIES', 'UTF-8');
725
		//$string=mb_convert_encoding_wrapper($string, 'HTML-ENTITIES', 'UTF-8');
726
	}
727
	else {
728
		$string = string_to_utf8($string, $charset_in);
729
		// encode html-entities
730
		if (is_UTF8($string)) {
731
			$string=string_decode_encode_entities($string, 'HTML-ENTITIES', 'UTF-8');
732
			//$string=mb_convert_encoding_wrapper($string, 'HTML-ENTITIES', 'UTF-8');
733
		}
734
	}
735
	return $string;
736
}
737

    
738
// translate any latin/greek/cyrillic html-entities to their plain 7bit equivalents
739
// and numbered-entities into hex
740
function entities_to_7bit($string) {
741
	require(WB_PATH.'/framework/convert.php');
742
	$string = strtr($string, $conversion_array);
743
	$string = preg_replace('/&#([0-9]+);/e', "dechex('$1')",  $string);
744
	return($string);
745
}
746

    
747
// Function to convert a page title to a page filename
748
function page_filename($string) {
749
	$string = entities_to_7bit(umlauts_to_entities($string));
750
	// Now replace spaces with page spcacer
751
	$string = str_replace(' ', PAGE_SPACER, $string);
752
	// Now remove all bad characters
753
	$bad = array(
754
	'\'', /* /  */ '"', /* " */	'<', /* < */	'>', /* > */
755
	'{', /* { */	'}', /* } */	'[', /* [ */	']', /* ] */	'`', /* ` */
756
	'!', /* ! */	'@', /* @ */	'#', /* # */	'$', /* $ */	'%', /* % */
757
	'^', /* ^ */	'&', /* & */	'*', /* * */	'(', /* ( */	')', /* ) */
758
	'=', /* = */	'+', /* + */	'|', /* | */	'/', /* / */	'\\', /* \ */
759
	';', /* ; */	':', /* : */	',', /* , */	'?' /* ? */
760
	);
761
	$string = str_replace($bad, '', $string);
762
	// Now convert to lower-case
763
	$string = strtolower($string);
764
	// Now remove multiple page spacers
765
	$string = str_replace(PAGE_SPACER.PAGE_SPACER, PAGE_SPACER, $string);
766
	// Clean any page spacers at the end of string
767
	$string = str_replace(PAGE_SPACER, ' ', $string);
768
	$string = trim($string);
769
	$string = str_replace(' ', PAGE_SPACER, $string);
770
	// If there are any weird language characters, this will protect us against possible problems they could cause
771
	$string = str_replace(array('%2F', '%'), array('/', ''), urlencode($string));
772
	// Finally, return the cleaned string
773
	return $string;
774
}
775

    
776
// Function to convert a desired media filename to a clean filename
777
function media_filename($string) {
778
	$string = entities_to_7bit(umlauts_to_entities($string));
779
	// Now remove all bad characters
780
	$bad = array(
781
	'\'', // '
782
	'"', // "
783
	'`', // `
784
	'!', // !
785
	'@', // @
786
	'#', // #
787
	'$', // $
788
	'%', // %
789
	'^', // ^
790
	'&', // &
791
	'*', // *
792
	'=', // =
793
	'+', // +
794
	'|', // |
795
	'/', // /
796
	'\\', // \
797
	';', // ;
798
	':', // :
799
	',', // ,
800
	'?' // ?
801
	);
802
	$string = str_replace($bad, '', $string);
803
	// Clean any page spacers at the end of string
804
	$string = trim($string);
805
	// Finally, return the cleaned string
806
	return $string;
807
}
808

    
809
// Function to work out a page link
810
if(!function_exists('page_link')) {
811
	function page_link($link) {
812
		global $admin;
813
		return $admin->page_link($link);
814
	}
815
}
816

    
817
// Create a new file in the pages directory
818
function create_access_file($filename,$page_id,$level) {
819
	global $admin;
820
	if(!is_writable(WB_PATH.PAGES_DIRECTORY.'/')) {
821
		$admin->print_error($MESSAGE['PAGES']['CANNOT_CREATE_ACCESS_FILE']);
822
	} else {
823
		// First make sure parent folder exists
824
		$parent_folders = explode('/',str_replace(WB_PATH.PAGES_DIRECTORY, '', dirname($filename)));
825
		$parents = '';
826
		foreach($parent_folders AS $parent_folder) {
827
			if($parent_folder != '/' AND $parent_folder != '') {
828
				$parents .= '/'.$parent_folder;
829
				if(!file_exists(WB_PATH.PAGES_DIRECTORY.$parents)) {
830
					make_dir(WB_PATH.PAGES_DIRECTORY.$parents);
831
				}
832
			}	
833
		}
834
		// The depth of the page directory in the directory hierarchy
835
		// '/pages' is at depth 1
836
		$pages_dir_depth=count(explode('/',PAGES_DIRECTORY))-1;
837
		// Work-out how many ../'s we need to get to the index page
838
		$index_location = '';
839
		for($i = 0; $i < $level + $pages_dir_depth; $i++) {
840
			$index_location .= '../';
841
		}
842
		$content = ''.
843
'<?php
844
$page_id = '.$page_id.';
845
require("'.$index_location.'config.php");
846
require(WB_PATH."/index.php");
847
?>';
848
		$handle = fopen($filename, 'w');
849
		fwrite($handle, $content);
850
		fclose($handle);
851
		// Chmod the file
852
		change_mode($filename, 'file');
853
	}
854
}
855

    
856
// Function for working out a file mime type (if the in-built PHP one is not enabled)
857
if(!function_exists('mime_content_type')) {
858
   function mime_content_type($file) {
859
       $file = escapeshellarg($file);
860
       return trim(`file -bi $file`);
861
   }
862
}
863

    
864
// Generate a thumbnail from an image
865
function make_thumb($source, $destination, $size) {
866
	// Check if GD is installed
867
	if(extension_loaded('gd') AND function_exists('imageCreateFromJpeg')) {
868
		// First figure out the size of the thumbnail
869
		list($original_x, $original_y) = getimagesize($source);
870
		if ($original_x > $original_y) {
871
			$thumb_w = $size;
872
			$thumb_h = $original_y*($size/$original_x);
873
		}
874
		if ($original_x < $original_y) {
875
			$thumb_w = $original_x*($size/$original_y);
876
			$thumb_h = $size;
877
		}
878
		if ($original_x == $original_y) {
879
			$thumb_w = $size;
880
			$thumb_h = $size;	
881
		}
882
		// Now make the thumbnail
883
		$source = imageCreateFromJpeg($source);
884
		$dst_img = ImageCreateTrueColor($thumb_w, $thumb_h);
885
		imagecopyresampled($dst_img,$source,0,0,0,0,$thumb_w,$thumb_h,$original_x,$original_y);
886
		imagejpeg($dst_img, $destination);
887
		// Clear memory
888
		imagedestroy($dst_img);
889
	   imagedestroy($source);
890
	   // Return true
891
	   return true;
892
   } else {
893
   	return false;
894
   }
895
}
896

    
897
// Function to work-out a single part of an octal permission value
898
function extract_permission($octal_value, $who, $action) {
899
	// Make sure the octal value is 4 chars long
900
	if(strlen($octal_value) == 0) {
901
		$octal_value = '0000';
902
	} elseif(strlen($octal_value) == 1) {
903
		$octal_value = '000'.$octal_value;
904
	} elseif(strlen($octal_value) == 2) {
905
		$octal_value = '00'.$octal_value;
906
	} elseif(strlen($octal_value) == 3) {
907
		$octal_value = '0'.$octal_value;
908
	} elseif(strlen($octal_value) == 4) {
909
		$octal_value = ''.$octal_value;
910
	} else {
911
		$octal_value = '0000';
912
	}
913
	// Work-out what position of the octal value to look at
914
	switch($who) {
915
	case 'u':
916
		$position = '1';
917
		break;
918
	case 'user':
919
		$position = '1';
920
		break;
921
	case 'g':
922
		$position = '2';
923
		break;
924
	case 'group':
925
		$position = '2';
926
		break;
927
	case 'o':
928
		$position = '3';
929
		break;
930
	case 'others':
931
		$position = '3';
932
		break;
933
	}
934
	// Work-out how long the octal value is and ajust acording
935
	if(strlen($octal_value) == 4) {
936
		$position = $position+1;
937
	} elseif(strlen($octal_value) != 3) {
938
		exit('Error');
939
	}
940
	// Now work-out what action the script is trying to look-up
941
	switch($action) {
942
	case 'r':
943
		$action = 'r';
944
		break;
945
	case 'read':
946
		$action = 'r';
947
		break;
948
	case 'w':
949
		$action = 'w';
950
		break;
951
	case 'write':
952
		$action = 'w';
953
		break;
954
	case 'e':
955
		$action = 'e';
956
		break;
957
	case 'execute':
958
		$action = 'e';
959
		break;
960
	}
961
	// Get the value for "who"
962
	$value = substr($octal_value, $position-1, 1);
963
	// Now work-out the details of the value
964
	switch($value) {
965
	case '0':
966
		$r = false;
967
		$w = false;
968
		$e = false;
969
		break;
970
	case '1':
971
		$r = false;
972
		$w = false;
973
		$e = true;
974
		break;
975
	case '2':
976
		$r = false;
977
		$w = true;
978
		$e = false;
979
		break;
980
	case '3':
981
		$r = false;
982
		$w = true;
983
		$e = true;
984
		break;
985
	case '4':
986
		$r = true;
987
		$w = false;
988
		$e = false;
989
		break;
990
	case '5':
991
		$r = true;
992
		$w = false;
993
		$e = true;
994
		break;
995
	case '6':
996
		$r = true;
997
		$w = true;
998
		$e = false;
999
		break;
1000
	case '7':
1001
		$r = true;
1002
		$w = true;
1003
		$e = true;
1004
		break;
1005
	default:
1006
		$r = false;
1007
		$w = false;
1008
		$e = false;
1009
	}
1010
	// And finally, return either true or false
1011
	return $$action;
1012
}
1013

    
1014
// Function to delete a page
1015
function delete_page($page_id) {
1016
	
1017
	global $admin, $database;
1018
	
1019
	// Find out more about the page
1020
	$database = new database();
1021
	$query = "SELECT page_id,menu_title,page_title,level,link,parent,modified_by,modified_when FROM ".TABLE_PREFIX."pages WHERE page_id = '$page_id'";
1022
	$results = $database->query($query);
1023
	if($database->is_error()) {
1024
		$admin->print_error($database->get_error());
1025
	}
1026
	if($results->numRows() == 0) {
1027
		$admin->print_error($MESSAGE['PAGES']['NOT_FOUND']);
1028
	}
1029
	$results_array = $results->fetchRow();
1030
	$parent = $results_array['parent'];
1031
	$level = $results_array['level'];
1032
	$link = $results_array['link'];
1033
	$page_title = ($results_array['page_title']);
1034
	$menu_title = ($results_array['menu_title']);
1035
	
1036
	// Get the sections that belong to the page
1037
	$query_sections = $database->query("SELECT section_id,module FROM ".TABLE_PREFIX."sections WHERE page_id = '$page_id'");
1038
	if($query_sections->numRows() > 0) {
1039
		while($section = $query_sections->fetchRow()) {
1040
			// Set section id
1041
			$section_id = $section['section_id'];
1042
			// Include the modules delete file if it exists
1043
			if(file_exists(WB_PATH.'/modules/'.$section['module'].'/delete.php')) {
1044
				require(WB_PATH.'/modules/'.$section['module'].'/delete.php');
1045
			}
1046
		}
1047
	}
1048
	
1049
	// Update the pages table
1050
	$query = "DELETE FROM ".TABLE_PREFIX."pages WHERE page_id = '$page_id'";
1051
	$database->query($query);
1052
	if($database->is_error()) {
1053
		$admin->print_error($database->get_error());
1054
	}
1055
	
1056
	// Update the sections table
1057
	$query = "DELETE FROM ".TABLE_PREFIX."sections WHERE page_id = '$page_id'";
1058
	$database->query($query);
1059
	if($database->is_error()) {
1060
		$admin->print_error($database->get_error());
1061
	}
1062
	
1063
	// Include the ordering class or clean-up ordering
1064
	require_once(WB_PATH.'/framework/class.order.php');
1065
	$order = new order(TABLE_PREFIX.'pages', 'position', 'page_id', 'parent');
1066
	$order->clean($parent);
1067
	
1068
	// Unlink the page access file and directory
1069
	$directory = WB_PATH.PAGES_DIRECTORY.$link;
1070
	$filename = $directory.'.php';
1071
	$directory .= '/';
1072
	if(file_exists($filename) && substr($filename,0,1<>'.')) {
1073
		if(!is_writable(WB_PATH.PAGES_DIRECTORY.'/')) {
1074
			$admin->print_error($MESSAGE['PAGES']['CANNOT_DELETE_ACCESS_FILE']);
1075
		} else {
1076
			unlink($filename);
1077
			if(file_exists($directory)) {
1078
				rm_full_dir($directory);
1079
			}
1080
		}
1081
	}
1082
	
1083
}
1084

    
1085
// Load module into DB
1086
function load_module($directory, $install = false) {
1087
	global $database,$admin,$MESSAGE;
1088
	if(file_exists($directory.'/info.php')) {
1089
		require($directory.'/info.php');
1090
		if(isset($module_name)) {
1091
			if(!isset($module_license)) { $module_license = 'GNU General Public License'; }
1092
			if(!isset($module_platform) AND isset($module_designed_for)) { $module_platform = $module_designed_for; }
1093
			if(!isset($module_function) AND isset($module_type)) { $module_function = $module_type; }
1094
			$module_function = strtolower($module_function);
1095
			// Check that it doesn't already exist
1096
			$result = $database->query("SELECT addon_id FROM ".TABLE_PREFIX."addons WHERE directory = '".$module_directory."' LIMIT 0,1");
1097
			if($result->numRows() == 0) {
1098
				// Load into DB
1099
				$query = "INSERT INTO ".TABLE_PREFIX."addons ".
1100
				"(directory,name,description,type,function,version,platform,author,license) ".
1101
				"VALUES ('$module_directory','$module_name','".addslashes($module_description)."','module',".
1102
				"'$module_function','$module_version','$module_platform','$module_author','$module_license')";
1103
				$database->query($query);
1104
				// Run installation script
1105
				if($install == true) {
1106
					if(file_exists($directory.'/install.php')) {
1107
						require($directory.'/install.php');
1108
					}
1109
				}
1110
			}
1111
		}
1112
	}
1113
}
1114

    
1115
// Load template into DB
1116
function load_template($directory) {
1117
	global $database;
1118
	if(file_exists($directory.'/info.php')) {
1119
		require($directory.'/info.php');
1120
		if(isset($template_name)) {
1121
			if(!isset($template_license)) { $template_license = 'GNU General Public License'; }
1122
			if(!isset($template_platform) AND isset($template_designed_for)) { $template_platform = $template_designed_for; }
1123
			// Check that it doesn't already exist
1124
			$result = $database->query("SELECT addon_id FROM ".TABLE_PREFIX."addons WHERE directory = '".$template_directory."' LIMIT 0,1");
1125
			if($result->numRows() == 0) {
1126
				// Load into DB
1127
				$query = "INSERT INTO ".TABLE_PREFIX."addons ".
1128
				"(directory,name,description,type,version,platform,author,license) ".
1129
				"VALUES ('$template_directory','$template_name','".addslashes($template_description)."','template',".
1130
				"'$template_version','$template_platform','$template_author','$template_license')";
1131
				$database->query($query);
1132
			}
1133
		}
1134
	}
1135
}
1136

    
1137
// Load language into DB
1138
function load_language($file) {
1139
	global $database;
1140
	if(file_exists($file)) {
1141
		require($file);
1142
		if(isset($language_name)) {
1143
			if(!isset($language_license)) { $language_license = 'GNU General Public License'; }
1144
			if(!isset($language_platform) AND isset($language_designed_for)) { $language_platform = $language_designed_for; }
1145
			// Check that it doesn't already exist
1146
			$result = $database->query("SELECT addon_id FROM ".TABLE_PREFIX."addons WHERE directory = '".$language_code."' LIMIT 0,1");
1147
			if($result->numRows() == 0) {
1148
				// Load into DB
1149
				$query = "INSERT INTO ".TABLE_PREFIX."addons ".
1150
				"(directory,name,type,version,platform,author,license) ".
1151
				"VALUES ('$language_code','$language_name','language',".
1152
				"'$language_version','$language_platform','$language_author','$language_license')";
1153
	 		$database->query($query);
1154
			}
1155
		}
1156
	}
1157
}
1158

    
1159
// Upgrade module info in DB, optionally start upgrade script
1160
function upgrade_module($directory, $upgrade = false) {
1161
	global $database, $admin, $MESSAGE;
1162
	$directory = WB_PATH . "/modules/$directory";
1163
	if(file_exists($directory.'/info.php')) {
1164
		require($directory.'/info.php');
1165
		if(isset($module_name)) {
1166
			if(!isset($module_license)) { $module_license = 'GNU General Public License'; }
1167
			if(!isset($module_platform) AND isset($module_designed_for)) { $module_platform = $module_designed_for; }
1168
			if(!isset($module_function) AND isset($module_type)) { $module_function = $module_type; }
1169
			$module_function = strtolower($module_function);
1170
			// Check that it does already exist
1171
			$result = $database->query("SELECT addon_id FROM ".TABLE_PREFIX."addons WHERE directory = '".$module_directory."' LIMIT 0,1");
1172
			if($result->numRows() > 0) {
1173
				// Update in DB
1174
				$query = "UPDATE " . TABLE_PREFIX . "addons SET " .
1175
					"version = '$module_version', " .
1176
					"description = '" . addslashes($module_description) . "', " .
1177
					"platform = '$module_platform', " .
1178
					"author = '$module_author', " .
1179
					"license = '$module_license'" .
1180
					"WHERE directory = '$module_directory'";
1181
				$database->query($query);
1182
				// Run upgrade script
1183
				if($upgrade == true) {
1184
					if(file_exists($directory.'/upgrade.php')) {
1185
						require($directory.'/upgrade.php');
1186
					}
1187
				}
1188
			}
1189
		}
1190
	}
1191
}
1192

    
1193
?>
(10-10/12)