54ea54ffaf7bf1758b36c5556b1843f3169b944d
[ipfire-2.x.git] / html / cgi-bin / captive.cgi
1 #!/usr/bin/perl
2 ###############################################################################
3 # #
4 # IPFire.org - A linux based firewall #
5 # Copyright (C) 2016 IPFire Team <alexander.marx@ipfire.org> #
6 # #
7 # This program is free software: you can redistribute it and/or modify #
8 # it under the terms of the GNU General Public License as published by #
9 # the Free Software Foundation, either version 3 of the License, or #
10 # (at your option) any later version. #
11 # #
12 # This program is distributed in the hope that it will be useful, #
13 # but WITHOUT ANY WARRANTY; without even the implied warranty of #
14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the #
15 # GNU General Public License for more details. #
16 # #
17 # You should have received a copy of the GNU General Public License #
18 # along with this program. If not, see <http://www.gnu.org/licenses/>. #
19 # #
20 ###############################################################################
21
22 #use strict;
23 use HTML::Entities();
24 use File::Basename;
25
26 # enable only the following on debugging purpose
27 #use warnings;
28 #use CGI::Carp 'fatalsToBrowser';
29
30 require '/var/ipfire/general-functions.pl';
31 require "${General::swroot}/lang.pl";
32 require "${General::swroot}/header.pl";
33
34 my %selected = ();
35
36 my $coupons = "${General::swroot}/captive/coupons";
37 my %couponhash = ();
38
39 my $logo = "${General::swroot}/captive/logo.dat";
40
41 my %settings=();
42 my %mainsettings;
43 my %color;
44 my %cgiparams=();
45 my %netsettings=();
46 my %checked=();
47 my $errormessage='';
48 my $clients="${General::swroot}/captive/clients";
49 my %clientshash=();
50 my $settingsfile="${General::swroot}/captive/settings";
51 unless (-e $settingsfile) { system("touch $settingsfile"); }
52
53 &Header::getcgihash(\%cgiparams);
54
55 &General::readhash("${General::swroot}/main/settings", \%mainsettings);
56 &General::readhash("/srv/web/ipfire/html/themes/".$mainsettings{'THEME'}."/include/colors.txt", \%color);
57 &General::readhash("$settingsfile", \%settings) if(-f $settingsfile);
58 &General::readhash("${General::swroot}/ethernet/settings", \%netsettings);
59
60 &Header::showhttpheaders();
61
62 if ($cgiparams{'ACTION'} eq $Lang::tr{'save'}) {
63 my $file = $cgiparams{'logo'};
64 if ($file) {
65 # Check if the file extension is PNG/JPEG
66 chomp $file;
67
68 my ($name, $path, $ext) = fileparse($file, qr/\.[^.]*$/);
69 if ($ext ne ".png" && $ext ne ".jpg" && $ext ne ".jpeg") {
70 $errormessage = $Lang::tr{'Captive wrong ext'};
71 }
72 }
73
74 $settings{'ENABLE_GREEN'} = $cgiparams{'ENABLE_GREEN'};
75 $settings{'ENABLE_BLUE'} = $cgiparams{'ENABLE_BLUE'};
76 $settings{'AUTH'} = $cgiparams{'AUTH'};
77 $settings{'TITLE'} = $cgiparams{'TITLE'};
78 $settings{'COLOR'} = $cgiparams{'COLOR'};
79 $settings{'SESSION_TIME'} = $cgiparams{'SESSION_TIME'};
80
81 if (!$errormessage){
82 #Check if we need to upload a new logo
83 if ($file) {
84 # Save logo
85 my ($filehandle) = CGI::upload("logo");
86
87 # XXX check filesize
88
89 open(FILE, ">$logo");
90 binmode $filehandle;
91 while (<$filehandle>) {
92 print FILE;
93 }
94 close(FILE);
95 }
96
97 &General::writehash("$settingsfile", \%settings);
98
99 # Save terms
100 $cgiparams{'TERMS'} = &Header::escape($cgiparams{'TERMS'});
101 open(FH, ">:utf8", "/var/ipfire/captive/terms.txt") or die("$!");
102 print FH $cgiparams{'TERMS'};
103 close(FH);
104 $cgiparams{'TERMS'} = "";
105
106 #execute binary to reload firewall rules
107 system("/usr/local/bin/captivectrl");
108
109 if ($cgiparams{'ENABLE_BLUE'} eq 'on'){
110 system("/usr/local/bin/wirelessctrl");
111 }
112 }
113 }
114
115 if ($cgiparams{'ACTION'} eq "$Lang::tr{'Captive generate coupon'}") {
116 # Check expiry time
117 if ($cgiparams{'EXP_HOUR'} + $cgiparams{'EXP_DAY'} + $cgiparams{'EXP_WEEK'} + $cgiparams{'EXP_MONTH'} == 0 && $cgiparams{'UNLIMITED'} == '') {
118 $errormessage = $Lang::tr{'Captive noexpiretime'};
119 }
120
121 #check valid remark
122 if ($cgiparams{'REMARK'} ne '' && !&validremark($cgiparams{'REMARK'})){
123 $errormessage=$Lang::tr{'fwhost err remark'};
124 }
125
126 if (!$errormessage) {
127 # Remember selected values
128 foreach my $val (("UNLIMITED", "EXP_HOUR", "EXP_DAY", "EXP_WEEK", "EXP_MONTH")) {
129 $settings{$val} = $cgiparams{$val};
130 }
131 &General::writehash($settingsfile, \%settings);
132
133 &General::readhasharray($coupons, \%couponhash) if (-e $coupons);
134 my $now = time();
135
136 # Calculate expiry time in seconds
137 my $expires = 0;
138
139 if ($settings{'UNLIMITED'} ne 'on') {
140 $expires += $settings{'EXP_HOUR'};
141 $expires += $settings{'EXP_DAY'};
142 $expires += $settings{'EXP_WEEK'};
143 $expires += $settings{'EXP_MONTH'};
144 }
145
146 my $count = $cgiparams{'COUNT'} || 1;
147 while($count-- > 0) {
148 # Generate a new code
149 my $code = &gencode();
150
151 # Check if the coupon code already exists
152 foreach my $key (keys %couponhash) {
153 if($couponhash{$key}[1] eq $code) {
154 # Code already exists, so try again
155 $code = "";
156 $count++;
157 last;
158 }
159 }
160
161 next if ($code eq "");
162
163 # Get a new key from hash
164 my $key = &General::findhasharraykey(\%couponhash);
165
166 # Initialize all fields
167 foreach my $i (0 .. 3) { $couponhash{$key}[$i] = ""; }
168
169 $couponhash{$key}[0] = $now;
170 $couponhash{$key}[1] = $code;
171 $couponhash{$key}[2] = $expires;
172 $couponhash{$key}[3] = $cgiparams{'REMARK'};
173 }
174
175 # Save everything to disk
176 &General::writehasharray($coupons, \%couponhash);
177 }
178 }
179
180 if ($cgiparams{'ACTION'} eq 'delete-coupon') {
181 #deletes an already generated but unused voucher
182
183 #read all generated vouchers
184 &General::readhasharray($coupons, \%couponhash) if (-e $coupons);
185 foreach my $key (keys %couponhash) {
186 if($cgiparams{'key'} eq $couponhash{$key}[0]){
187 #write logenty with decoded remark
188 my $rem=HTML::Entities::decode_entities($couponhash{$key}[4]);
189 &General::log("Captive", "Delete unused coupon $couponhash{$key}[1] $couponhash{$key}[2] hours valid expires on $couponhash{$key}[3] remark $rem");
190 #delete line from hash
191 delete $couponhash{$key};
192 last;
193 }
194 }
195 #write back hash
196 &General::writehasharray($coupons, \%couponhash);
197 }
198
199 if ($cgiparams{'ACTION'} eq 'delete-client') {
200 #delete voucher and connection in use
201
202 #read all active clients
203 &General::readhasharray($clients, \%clientshash) if (-e $clients);
204 foreach my $key (keys %clientshash) {
205 if($cgiparams{'key'} eq $clientshash{$key}[0]){
206 #prepare log entry with decoded remark
207 my $rem=HTML::Entities::decode_entities($clientshash{$key}[7]);
208 #write logentry
209 &General::log("Captive", "Deleted client in use $clientshash{$key}[1] $clientshash{$key}[2] hours valid expires on $clientshash{$key}[3] remark $rem - Connection will be terminated");
210 #delete line from hash
211 delete $clientshash{$key};
212 last;
213 }
214 }
215 #write back hash
216 &General::writehasharray("$clients", \%clientshash);
217 #reload firewallrules to kill connection of client
218 system("/usr/local/bin/captivectrl");
219 }
220
221 #open webpage, print header and open box
222 &Header::openpage($Lang::tr{'Captive menu'}, 1, '');
223 &Header::openbigbox();
224
225 # If an error message exists, show a box with the error message
226 if ($errormessage) {
227 &Header::openbox('100%', 'left', $Lang::tr{'error messages'});
228 print $errormessage;
229 &Header::closebox();
230 }
231
232 # Prints the config box on the website
233 &Header::openbox('100%', 'left', $Lang::tr{'Captive config'});
234 print <<END
235 <form method='post' action='$ENV{'SCRIPT_NAME'}' enctype="multipart/form-data">\n
236 <table width='100%' border="0">
237 <tr>
238 END
239 ;
240
241 #check which parameters have to be enabled (from settings file)
242 $checked{'ENABLE_GREEN'}{'off'} = '';
243 $checked{'ENABLE_GREEN'}{'on'} = '';
244 $checked{'ENABLE_GREEN'}{$settings{'ENABLE_GREEN'}} = "checked='checked'";
245
246 $checked{'ENABLE_BLUE'}{'off'} = '';
247 $checked{'ENABLE_BLUE'}{'on'} = '';
248 $checked{'ENABLE_BLUE'}{$settings{'ENABLE_BLUE'}} = "checked='checked'";
249
250 $checked{'UNLIMITED'}{'off'} = '';
251 $checked{'UNLIMITED'}{'on'} = '';
252 $checked{'UNLIMITED'}{$settings{'UNLIMITED'}} = "checked='checked'";
253
254 $selected{'AUTH'} = ();
255 $selected{'AUTH'}{'COUPON'} = "";
256 $selected{'AUTH'}{'TERMS'} = "";
257 $selected{'AUTH'}{$settings{'AUTH'}} = "selected";
258
259 if ($netsettings{'GREEN_DEV'}){
260 print "<td width='30%'>$Lang::tr{'Captive active on'} <font color='$Header::colourgreen'>Green</font></td><td><input type='checkbox' name='ENABLE_GREEN' $checked{'ENABLE_GREEN'}{'on'} /></td></tr>";
261 }
262 if ($netsettings{'BLUE_DEV'}){
263 print "<td width='30%'>$Lang::tr{'Captive active on'} <font color='$Header::colourblue'>Blue</font></td><td><input type='checkbox' name='ENABLE_BLUE' $checked{'ENABLE_BLUE'}{'on'} /></td></tr>";
264 }
265
266 print<<END
267 </tr>
268 <tr>
269 <td>
270 $Lang::tr{'Captive authentication'}
271 </td>
272 <td>
273 <select name='AUTH'>
274 <option value="TERMS" $selected{'AUTH'}{'TERMS'} >$Lang::tr{'Captive terms'}</option>
275 <option value="COUPON" $selected{'AUTH'}{'COUPON'}>$Lang::tr{'Captive coupon'}</option>
276 </select>
277 </td>
278 </tr>
279 END
280 ;
281
282 if ($settings{'AUTH'} eq 'TERMS') {
283 $selected{'SESSION_TIME'} = ();
284 $selected{'SESSION_TIME'}{'0'} = "";
285 $selected{'SESSION_TIME'}{'3600'} = "";
286 $selected{'SESSION_TIME'}{'28800'} = "";
287 $selected{'SESSION_TIME'}{'86400'} = "";
288 $selected{'SESSION_TIME'}{'604800'} = "";
289 $selected{'SESSION_TIME'}{'18144000'} = "";
290 $selected{'SESSION_TIME'}{$settings{'SESSION_TIME'}} = "selected";
291
292 print <<END;
293 <tr>
294 <td>$Lang::tr{'Captive client session expiry time'}</td>
295 <td>
296 <select name="SESSION_TIME">
297 <option value="0" $selected{'SESSION_TIME'}{'0'}>- $Lang::tr{'unlimited'} -</option>
298 <option value="3600" $selected{'SESSION_TIME'}{'3600'}>$Lang::tr{'one hour'}</option>
299 <option value="28800" $selected{'SESSION_TIME'}{'28800'}>$Lang::tr{'eight hours'}</option>
300 <option value="86400" $selected{'SESSION_TIME'}{'86400'}>$Lang::tr{'24 hours'}</option>
301 <option value="604800" $selected{'SESSION_TIME'}{'604800'}>$Lang::tr{'one week'}</option>
302 <option value="18144000" $selected{'SESSION_TIME'}{'18144000'}>$Lang::tr{'one month'}</option>
303 </select>
304 </td>
305 </tr>
306 END
307 }
308
309 print<<END;
310 <tr>
311 <td colspan="2">
312 <br>
313 <strong>$Lang::tr{'Captive branding'}</strong>
314 </td>
315 </tr>
316 <tr>
317 <td>
318 $Lang::tr{'Captive title'}
319 </td>
320 <td>
321 <input type='text' name='TITLE' value="$settings{'TITLE'}" size='40'>
322 </td>
323 </tr>
324 <tr>
325 <td>$Lang::tr{'Captive brand color'}</td>
326 <td>
327 <input type="color" name="COLOR" value="$settings{'COLOR'}">
328 </td>
329 </tr>
330 <tr>
331 <td>
332 $Lang::tr{'Captive upload logo'}
333 </td>
334 <td>
335 <input type="file" name="logo">
336 <br>$Lang::tr{'Captive upload logo recommendations'}
337 </td>
338 </tr>
339 END
340
341 if (-e $logo) {
342 print <<END;
343 <tr>
344 <td>$Lang::tr{'Captive logo uploaded'}</td>
345 <td>$Lang::tr{'yes'}</td>
346 </tr>
347 END
348 }
349
350 my $terms = &getterms();
351 print <<END;
352 <tr>
353 <td>$Lang::tr{'Captive terms'}</td>
354 <td>
355 <textarea cols="50" rows="10" name="TERMS">$terms</textarea>
356 </td>
357 </tr>
358 <tr>
359 <td></td>
360 <td align='right'>
361 <input type='submit' name='ACTION' value="$Lang::tr{'save'}"/>
362 </td>
363 </tr>
364 </table></form>
365 END
366
367 &Header::closebox();
368
369 #if settings is set to use coupons, the coupon part has to be displayed
370 if ($settings{'AUTH'} eq 'COUPON') {
371 &coupons();
372 }
373
374 # Show active clients
375 &show_clients();
376
377 sub getterms() {
378 my @ret;
379
380 open(FILE, "<:utf8", "/var/ipfire/captive/terms.txt");
381 while(<FILE>) {
382 push(@ret, HTML::Entities::decode_entities($_));
383 }
384 close(FILE);
385
386 return join(/\n/, @ret);
387 }
388
389 sub gencode(){
390 #generate a random code only letters from A-Z except 'O' and 0-9
391 my @chars = ("A".."N", "P".."Z", "0".."9");
392 my $randomstring;
393 $randomstring .= $chars[rand @chars] for 1..8;
394 return $randomstring;
395 }
396
397 sub coupons() {
398 &Header::openbox('100%', 'left', $Lang::tr{'Captive generate coupon'});
399 print <<END;
400 <form method='post' action='$ENV{'SCRIPT_NAME'}'>
401 <table border='0' width='100%'>
402 <tr>
403 <td width='30%'>
404 $Lang::tr{'Captive vouchervalid'}
405 </td>
406 <td width='70%'>
407 <table class='tbl' border='0' width='100%'>
408 <tr>
409 <th>$Lang::tr{'hours'}</th>
410 <th>$Lang::tr{'days'}</th>
411 <th>$Lang::tr{'weeks'}</th>
412 <th>$Lang::tr{'months'}</th>
413 <th></th>
414 </tr>
415 END
416
417 #print hour-dropdownbox
418 my $hrs=3600;
419 print "<tr height='40px'><td><select name='EXP_HOUR' style='width:8em;'>";
420 print "<option value='0' ";
421 print " selected='selected'" if ($settings{'EXP_HOUR'} eq '0');
422 print ">--</option>";
423 for (my $i = 1; $i<25; $i++){
424 my $exp_sec = $i * $hrs;
425 print "<option value='$exp_sec' ";
426 print " selected='selected'" if ($settings{'EXP_HOUR'} eq $exp_sec);
427 print ">$i</option>";
428 }
429 print "</td><td>";
430
431 #print day-dropdownbox
432 my $days=3600*24;
433 print "<select name='EXP_DAY' style='width:8em;'>";
434 print "<option value='0' ";
435 print " selected='selected'" if ($settings{'EXP_DAY'} eq '0');
436 print ">--</option>";
437 for (my $i = 1; $i<8; $i++){
438 my $exp_sec = $i * $days;
439 print "<option value='$exp_sec' ";
440 print " selected='selected'" if ($settings{'EXP_DAY'} eq $exp_sec);
441 print ">$i</option>";
442 }
443 print "</td><td>";
444
445 #print week-dropdownbox
446 my $week=3600*24*7;
447 print "<select name='EXP_WEEK' style='width:8em;'>";
448 print "<option value='0' ";
449 print " selected='selected'" if ($settings{'EXP_WEEK'} eq '0');
450 print ">--</option>";
451 for (my $i = 1; $i<5; $i++){
452 my $exp_sec = $i * $week;
453 print "<option value='$exp_sec' ";
454 print " selected='selected'" if ($settings{'EXP_WEEK'} eq $exp_sec);
455 print ">$i</option>";
456 }
457 print "</td><td>";
458
459 #print month-dropdownbox
460 my $month=3600*24*30;
461 print "<select name='EXP_MONTH' style='width:8em;'>";
462 print "<option value='0' ";
463 print " selected='selected'" if ($settings{'EXP_MONTH'} eq '0');
464 print ">--</option>";
465 for (my $i = 1; $i<13; $i++){
466 my $exp_sec = $i * $month;
467 print "<option value='$exp_sec' ";
468 print " selected='selected'" if ($settings{'EXP_MONTH'} eq $exp_sec);
469 print ">$i</option>";
470 }
471 print <<END;
472 </td>
473 <td>
474 <label>
475 <input type='checkbox' name='UNLIMITED' $checked{'UNLIMITED'}{'on'} />
476 $Lang::tr{'Captive nolimit'}
477 </label>
478 </td>
479 </tr>
480 </table>
481 </td>
482 </tr>
483 <tr>
484 <td>$Lang::tr{'remark'}</td>
485 <td>
486 <input type='text' style='width: 98%;' name='REMARK' align='left'>
487 </td>
488 </tr>
489 </table>
490
491 <div align="right">
492 <select name="COUNT">
493 <option value="1">1</option>
494 <option value="2">2</option>
495 <option value="3">3</option>
496 <option value="4">4</option>
497 <option value="5">5</option>
498 <option value="6">6</option>
499 <option value="7">7</option>
500 <option value="8">8</option>
501 <option value="9">9</option>
502 <option value="10">10</option>
503 <option value="20">20</option>
504 <option value="50">50</option>
505 <option value="100">100</option>
506 </select>
507
508 <input type="submit" name="ACTION" value="$Lang::tr{'Captive generate coupon'}">
509 </div>
510 </form>
511 END
512
513 &Header::closebox();
514
515 # Show all coupons if exist
516 if (! -z $coupons) {
517 &show_coupons();
518 }
519 }
520
521 sub show_coupons() {
522 &General::readhasharray($coupons, \%couponhash) if (-e $coupons);
523
524 #if there are already generated but unsused coupons, print a table
525 &Header::openbox('100%', 'left', $Lang::tr{'Captive issued coupons'});
526
527 print <<END;
528 <table class='tbl' border='0'>
529 <tr>
530 <th align='center' width='15%'>
531 $Lang::tr{'Captive coupon'}
532 </th>
533 <th align='center' width='15%'>$Lang::tr{'Captive expiry time'}</th>
534 <th align='center' width='65%'>$Lang::tr{'remark'}</th>
535 <th align='center' width='5%'>$Lang::tr{'delete'}</th>
536 </tr>
537 END
538
539 foreach my $key (keys %couponhash) {
540 my $expirytime = $Lang::tr{'Captive nolimit'};
541 if ($couponhash{$key}[2] > 0) {
542 $expirytime = &General::format_time($couponhash{$key}[2]);
543 }
544
545 if ($count++ % 2) {
546 $col="bgcolor='$color{'color20'}'";
547 } else {
548 $col="bgcolor='$color{'color22'}'";
549 }
550
551 print <<END;
552 <tr>
553 <td $col align="center">
554 <b>$couponhash{$key}[1]</b>
555 </td>
556 <td $col align="center">
557 $expirytime
558 </td>
559 <td $col align="center">
560 $couponhash{$key}[3]
561 </td>
562 <td $col align="center">
563 <form method='post'>
564 <input type='image' src='/images/delete.gif' align='middle' alt='$Lang::tr{'delete'}' title='$Lang::tr{'delete'}' />
565 <input type='hidden' name='ACTION' value='delete-coupon' />
566 <input type='hidden' name='key' value='$couponhash{$key}[0]' />
567 </form>
568 </td>
569 </tr>
570 END
571 }
572
573 print "</table>";
574
575 &Header::closebox();
576 }
577
578 sub show_clients() {
579 # if there are active clients which use coupons show table
580 return if ( -z $clients || ! -f $clients );
581
582 my $count=0;
583 my $col;
584
585 &Header::openbox('100%', 'left', $Lang::tr{'Captive clients'});
586
587 print <<END;
588 <table class='tbl' width='100%'>
589 <tr>
590 <th align='center' width='15%'>$Lang::tr{'Captive coupon'}</th>
591 <th align='center' width='15%'>$Lang::tr{'Captive activated'}</th>
592 <th align='center' width='15%'>$Lang::tr{'Captive expiry time'}</th>
593 <th align='center' width='10%'>$Lang::tr{'Captive mac'}</th>
594 <th align='center' width='43%'>$Lang::tr{'remark'}</th>
595 <th align='center' width='5%'>$Lang::tr{'delete'}</th>
596 </tr>
597 END
598
599 &General::readhasharray($clients, \%clientshash) if (-e $clients);
600 foreach my $key (keys %clientshash) {
601 #calculate time from clientshash (starttime)
602 my $starttime = sub{sprintf '%02d.%02d.%04d %02d:%02d', $_[3], $_[4]+1, $_[5]+1900, $_[2], $_[1] }->(localtime($clientshash{$key}[2]));
603
604 #calculate endtime from clientshash
605 my $endtime;
606 if ($clientshash{$key}[3] eq '0'){
607 $endtime=$Lang::tr{'Captive nolimit'};
608 } else {
609 $endtime = sub{sprintf '%02d.%02d.%04d %02d:%02d', $_[3], $_[4]+1, $_[5]+1900, $_[2], $_[1] }->(localtime($clientshash{$key}[2]+$clientshash{$key}[3]));
610 }
611
612 if ($count++ % 2) {
613 $col="bgcolor='$color{'color20'}'";
614 } else {
615 $col="bgcolor='$color{'color22'}'";
616 }
617
618 my $coupon = ($clientshash{$key}[4] eq "LICENSE") ? $Lang::tr{'Captive terms short'} : $clientshash{$key}[4];
619
620 print <<END;
621 <tr>
622 <td $col align="center"><b>$coupon</b></td>
623 <td $col align="center">$starttime</td>
624 <td $col align="center">$endtime</td>
625 <td $col align="center">$clientshash{$key}[0]</td>
626 <td $col align="center">$clientshash{$key}[5]</td>
627 <td $col align="center">
628 <form method='post'>
629 <input type='image' src='/images/delete.gif' align='middle' alt='$Lang::tr{'delete'}' title='$Lang::tr{'delete'}' />
630 <input type='hidden' name='ACTION' value='delete-client' />
631 <input type='hidden' name='key' value='$clientshash{$key}[0]' />
632 </form>
633 </td>
634 </tr>
635 END
636 }
637
638 print "</table>";
639
640 &Header::closebox();
641 }
642
643 sub validremark
644 {
645 # Checks a hostname against RFC1035
646 my $remark = $_[0];
647 # Each part should be at least two characters in length
648 # but no more than 63 characters
649 if (length ($remark) < 1 || length ($remark) > 255) {
650 return 0;}
651 # Only valid characters are a-z, A-Z, 0-9 and -
652 if ($remark !~ /^[a-zäöüA-ZÖÄÜ0-9-.:;\|_()\/\s]*$/) {
653 return 0;}
654 # First character can only be a letter or a digit
655 if (substr ($remark, 0, 1) !~ /^[a-zäöüA-ZÖÄÜ0-9]*$/) {
656 return 0;}
657 # Last character can only be a letter or a digit
658 if (substr ($remark, -1, 1) !~ /^[a-zöäüA-ZÖÄÜ0-9.:;_)]*$/) {
659 return 0;}
660 return 1;
661 }
662
663 &Header::closebigbox();
664 &Header::closepage();