]>
git.ipfire.org Git - ipfire-2.x.git/blob - html/cgi-bin/captive.cgi
2 ###############################################################################
4 # IPFire.org - A linux based firewall #
5 # Copyright (C) 2016 IPFire Team <alexander.marx@ipfire.org> #
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. #
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. #
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/>. #
20 ###############################################################################
26 # enable only the following on debugging purpose
28 #use CGI::Carp 'fatalsToBrowser';
30 require '/var/ipfire/general-functions.pl' ;
31 require "${General::swroot}/lang.pl" ;
32 require "${General::swroot}/header.pl" ;
41 my $voucherout = "${General::swroot}/captive/voucher_out" ;
42 my $clients = "${General::swroot}/captive/clients" ;
45 my $settingsfile = "${General::swroot}/captive/settings" ;
46 my $logopath = "/srv/web/ipfire/html/captive/logo" ;
47 unless (- e
$settingsfile ) { system ( "touch $settingsfile " ); }
48 unless (- e
$voucherout ) { system ( "touch $voucherout " ); }
50 & Header
:: getcgihash
( \
%cgiparams );
52 & General
:: readhash
( "${General::swroot}/main/settings" , \
%mainsettings );
53 & General
:: readhash
( "/srv/web/ipfire/html/themes/" . $mainsettings { 'THEME' }. "/include/colors.txt" , \
%color );
54 & General
:: readhash
( " $settingsfile " , \
%settings ) if (- f
$settingsfile );
55 & General
:: readhash
( "${General::swroot}/ethernet/settings" , \
%netsettings );
57 & Header
:: showhttpheaders
();
60 if ( $cgiparams { 'ACTION' } eq " $Lang ::tr{'save'}" ){
61 my $file = $cgiparams { 'uploaded_file' };
63 #Check if extension is png
65 my ( $name , $path , $ext ) = fileparse
( $file , qr/\.[^.]*$/ );
67 $errormessage = $Lang :: tr
{ 'Captive wrong ext' };
71 $settings { 'ENABLE_GREEN' } = $cgiparams { 'ENABLE_GREEN' };
72 $settings { 'ENABLE_BLUE' } = $cgiparams { 'ENABLE_BLUE' };
73 $settings { 'AUTH' } = $cgiparams { 'AUTH' };
74 $settings { 'TITLE' } = $cgiparams { 'TITLE' };
75 $settings { 'UNLIMITED' } = $cgiparams { 'UNLIMITED' };
78 #Check if we need to upload a new logo
81 my ( $filehandle ) = CGI
:: upload
( 'uploaded_file' );
82 open ( UPLOADFILE
, "> $logopath /logo.png" );
84 while ( < $filehandle > ) {
89 #Open file to check if dimensions are within rang
90 open ( PNG
, "< $logopath /logo.png" );
94 my ( $width , $height )=& pngsize
( $PNG1 );
95 if ( $width > 1920 || $height > 800 || $width < 1280 || $height < 400 ){
96 $errormessage .= " $Lang ::tr{'Captive invalid logosize'} <br>Filedimensions width: $width height: $height " ;
97 unlink ( " $logopath /logo.png" );
101 & General
:: writehash
( " $settingsfile " , \
%settings );
103 #write Licensetext if defined
104 if ( $cgiparams { 'AGB' }){
105 $cgiparams { 'AGB' } = & Header
:: escape
( $cgiparams { 'AGB' });
106 open ( FH
, ">:utf8" , "/var/ipfire/captive/agb.txt" ) or die ( "$!" );
107 print FH
$cgiparams { 'AGB' };
109 $cgiparams { 'AGB' }= "" ;
111 #execute binary to reload firewall rules
112 system ( "/usr/local/bin/captivectrl" );
114 if ( $cgiparams { 'ENABLE_BLUE' } eq 'on' ){
115 system ( "/usr/local/bin/wirelessctrl" );
120 if ( $cgiparams { 'ACTION' } eq " $Lang ::tr{'Captive genvoucher'}" ){
121 #generates a voucher and writes it to /var/ipfire/voucher_out
123 #calculate expiredate
125 if ( $settings { 'UNLIMITED' } eq 'on' ){
126 $expire = $Lang :: tr
{ 'Captive nolimit' };
128 $settings { 'EXPIRE' } = $cgiparams { 'EXP_HOUR' }+ $cgiparams { 'EXP_DAY' }+ $cgiparams { 'EXP_WEEK' }+ $cgiparams { 'EXP_MONTH' };
129 $expire = sub { sprintf ' %02d . %02d . %04d %02d : %02d ' , $_ [ 3 ], $_ [ 4 ]+ 1 , $_ [ 5 ]+ 1900 , $_ [ 2 ], $_ [ 1 ] }->( localtime ( time ()+ $settings { 'EXPIRE' }));
133 if ( $cgiparams { 'EXP_HOUR' }+ $cgiparams { 'EXP_DAY' }+ $cgiparams { 'EXP_WEEK' }+ $cgiparams { 'EXP_MONTH' } == 0 && $cgiparams { 'UNLIMITED' } == '' ){
134 $errormessage = $Lang :: tr
{ 'Captive noexpiretime' };
136 #check if we already have a voucher with same code
137 & General
:: readhasharray
( " $voucherout " , \
%voucherhash );
138 foreach my $key ( keys %voucherhash ) {
139 if ( $voucherhash { $key }[ 1 ] eq $cgiparams { 'CODE' }){
140 $errormessage = $Lang :: tr
{ 'Captive err doublevoucher' };
146 if ( $cgiparams { 'REMARK' } ne '' && !& validremark
( $cgiparams { 'REMARK' })){
147 $errormessage = $Lang :: tr
{ 'fwhost err remark' };
150 #if no error detected, write to disk
152 my $date = time (); #seconds in utc
154 #first get new key from hash
155 my $key =& General
:: findhasharraykey
( \
%voucherhash );
156 #initialize all fields with ''
157 foreach my $i ( 0 .. 3 ) { $voucherhash { $key }[ $i ] = "" ;}
159 $voucherhash { $key }[ 0 ] = $date ;
160 $voucherhash { $key }[ 1 ] = $cgiparams { 'CODE' };
161 $voucherhash { $key }[ 2 ] = $settings { 'EXPIRE' };
162 $voucherhash { $key }[ 3 ] = $cgiparams { 'REMARK' };
163 #write values to disk
164 & General
:: writehasharray
( " $voucherout " , \
%voucherhash );
166 #now prepare log entry, get expiring date for voucher and decode remark for logfile
167 my $expdate = localtime ( time ()+ $voucherhash { $key }[ 3 ]);
168 my $rem = HTML
:: Entities
:: decode_entities
( $voucherhash { $key }[ 4 ]);
171 & General
:: log ( "Captive" , "Generated new voucher $voucherhash { $key }[1] $voucherhash { $key }[2] hours valid expires on $expdate remark $rem " );
175 if ( $cgiparams { 'ACTION' } eq 'delvoucherout' ){
176 #deletes an already generated but unused voucher
178 #read all generated vouchers
179 & General
:: readhasharray
( " $voucherout " , \
%voucherhash );
180 foreach my $key ( keys %voucherhash ) {
181 if ( $cgiparams { 'key' } eq $voucherhash { $key }[ 0 ]){
182 #write logenty with decoded remark
183 my $rem = HTML
:: Entities
:: decode_entities
( $voucherhash { $key }[ 4 ]);
184 & General
:: log ( "Captive" , "Delete unused voucher $voucherhash { $key }[1] $voucherhash { $key }[2] hours valid expires on $voucherhash { $key }[3] remark $rem " );
185 #delete line from hash
186 delete $voucherhash { $key };
191 & General
:: writehasharray
( " $voucherout " , \
%voucherhash );
194 if ( $cgiparams { 'ACTION' } eq 'delvoucherinuse' ){
195 #delete voucher and connection in use
197 #read all active clients
198 & General
:: readhasharray
( " $clients " , \
%clientshash );
199 foreach my $key ( keys %clientshash ) {
200 if ( $cgiparams { 'key' } eq $clientshash { $key }[ 0 ]){
201 #prepare log entry with decoded remark
202 my $rem = HTML
:: Entities
:: decode_entities
( $clientshash { $key }[ 7 ]);
204 & General
:: log ( "Captive" , "Delete voucher in use $clientshash { $key }[1] $clientshash { $key }[2] hours valid expires on $clientshash { $key }[3] remark $rem - Connection will be terminated" );
205 #delete line from hash
206 delete $clientshash { $key };
211 & General
:: writehasharray
( " $clients " , \
%clientshash );
212 #reload firewallrules to kill connection of client
213 system ( "/usr/local/bin/captivectrl" );
216 #open webpage, print header and open box
217 & Header
:: openpage
( $Lang :: tr
{ 'Captive menu' }, 1 , '' );
218 & Header
:: openbigbox
();
220 #call error() to see if we have to print an errormessage on website
223 #call config() to display the configuration box
227 #open textfile from /var/ipfire/captive/agb.txt
228 open ( my $handle , "<:utf8" , "/var/ipfire/captive/agb.txt" ) or die ( "$!" );
230 #read line by line and print on screen
231 $cgiparams { 'AGB' }.= HTML
:: Entities
:: decode_entities
( $_ );
237 #prints the config box on the website
238 & Header
:: openbox
( '100%' , 'left' , $Lang :: tr
{ 'Captive config' });
240 <form method='post' action=' $ENV {'SCRIPT_NAME'}' enctype="multipart/form-data"> \n
241 <table width='100%' border="0">
245 #check which parameters have to be enabled (from settings file)
246 $checked { 'ENABLE_GREEN' }{ 'off' } = '' ;
247 $checked { 'ENABLE_GREEN' }{ 'on' } = '' ;
248 $checked { 'ENABLE_GREEN' }{ $settings { 'ENABLE_GREEN' }} = "checked='checked'" ;
250 $checked { 'ENABLE_BLUE' }{ 'off' } = '' ;
251 $checked { 'ENABLE_BLUE' }{ 'on' } = '' ;
252 $checked { 'ENABLE_BLUE' }{ $settings { 'ENABLE_BLUE' }} = "checked='checked'" ;
254 $checked { 'UNLIMITED' }{ 'off' } = '' ;
255 $checked { 'UNLIMITED' }{ 'on' } = '' ;
256 $checked { 'UNLIMITED' }{ $settings { 'UNLIMITED' }} = "checked='checked'" ;
258 if ( $netsettings { 'GREEN_DEV' }){
259 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 if ( $netsettings { 'BLUE_DEV' }){
262 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>" ;
269 $Lang ::tr{'Captive title'}
272 <input type='text' name='TITLE' value=" $settings {'TITLE'}" size='40'>
281 $Lang ::tr{'Captive authentication'}
284 <select name='AUTH' style='width:8em;'>
287 print "<option value='LICENSE' " ;
288 print " selected='selected'" if ( $settings { 'AUTH' } eq 'LICENSE' );
289 print "> $Lang ::tr{'Captive auth_lic'}</option>" ;
291 print "<option value='VOUCHER' " ;
292 print " selected='selected'" if ( $settings { 'AUTH' } eq 'VOUCHER' );
293 print "> $Lang ::tr{'Captive auth_vou'}</option>" ;
301 if ( $settings { 'AUTH' } eq 'LICENSE' ){ & agbbox
(); };
304 print "<tr><td><br> $Lang ::tr{'Captive logo_upload'}<br> $Lang ::tr{'Captive logo_upload1'}</td><td><br><INPUT TYPE='file' NAME='uploaded_file' SIZE=30 MAXLENGTH=80></td></tr><tr>" ;
305 #Show Logo in webinterface with 1/2 size if set
306 if (- f
" $logopath /logo.png" ){
307 print "<td> $Lang ::tr{'Captive logo_set'}</td>" ;
308 print "<td><img src='/captive/logo/logo.png' alt=' $logopath /logo.png' width='25%' height='25%' /></td></tr>" ;
310 print "<td> $Lang ::tr{'Captive logo_set'}</td>" ;
311 print "<td><br> $Lang ::tr{'no'}</td></tr>" ;
318 <input type='submit' name='ACTION' value=" $Lang ::tr{'save'}"/>
329 #if settings is set to use vouchers, the voucher part has to be displayed
330 if ( $settings { 'AUTH' } eq 'VOUCHER' ){
333 #otherwise we show the licensepart
334 & show_license_connections
();
347 <textarea cols="50" rows="10" name="AGB"> $cgiparams {'AGB'}</textarea>
355 #generate a random code only letters from A-Z except 'O' and 0-9
356 my @chars = ( "A" .. "N" , "P" .. "Z" , "0" .. "9" );
358 $randomstring .= $chars [ rand @chars ] for 1 . .8 ;
359 return $randomstring ;
364 & Header
:: openbox
( '100%' , 'left' , $Lang :: tr
{ 'Captive genvoucher' });
365 print "<form method='post' action=' $ENV {'SCRIPT_NAME'}'>" ;
366 print "<table border='0' width='100%'>" ;
367 print "<tr><td width='30%'><br> $Lang ::tr{'Captive vouchervalid'}</td><td width='70%'><br>" ;
369 print "<table class='tbl' border='0' width='100%'>" ;
370 print "<th> $Lang ::tr{'hours'}</th><th> $Lang ::tr{'days'}</th><th> $Lang ::tr{'weeks'}</th><th> $Lang ::tr{'months'}</th><th></th><th></th>" ;
372 #print hour-dropdownbox
374 print "<tr height='40px'><td><select name='EXP_HOUR' style='width:8em;'>" ;
375 print "<option value='0' " ;
376 print " selected='selected'" if ( $settings { 'EXP_HOUR' } eq '0' );
377 print ">--</option>" ;
378 for ( my $i = 1 ; $i < 25 ; $i ++){
379 my $exp_sec = $i * $hrs ;
380 print "<option value=' $exp_sec ' " ;
381 print " selected='selected'" if ( $settings { 'EXP_HOUR' } eq $exp_sec );
382 print "> $i </option>" ;
386 #print day-dropdownbox
388 print "<select name='EXP_DAY' style='width:8em;'>" ;
389 print "<option value='0' " ;
390 print " selected='selected'" if ( $settings { 'EXP_DAY' } eq '0' );
391 print ">--</option>" ;
392 for ( my $i = 1 ; $i < 8 ; $i ++){
393 my $exp_sec = $i * $days ;
394 print "<option value=' $exp_sec ' " ;
395 print " selected='selected'" if ( $settings { 'EXP_DAY' } eq $exp_sec );
396 print "> $i </option>" ;
400 #print week-dropdownbox
402 print "<select name='EXP_WEEK' style='width:8em;'>" ;
403 print "<option value='0' " ;
404 print " selected='selected'" if ( $settings { 'EXP_WEEK' } eq '0' );
405 print ">--</option>" ;
406 for ( my $i = 1 ; $i < 5 ; $i ++){
407 my $exp_sec = $i * $week ;
408 print "<option value=' $exp_sec ' " ;
409 print " selected='selected'" if ( $settings { 'EXP_WEEK' } eq $exp_sec );
410 print "> $i </option>" ;
414 #print month-dropdownbox
415 my $month = 3600 * 24 * 30 ;
416 print "<select name='EXP_MONTH' style='width:8em;'>" ;
417 print "<option value='0' " ;
418 print " selected='selected'" if ( $settings { 'EXP_MONTH' } eq '0' );
419 print ">--</option>" ;
420 for ( my $i = 1 ; $i < 13 ; $i ++){
421 my $exp_sec = $i * $month ;
422 print "<option value=' $exp_sec ' " ;
423 print " selected='selected'" if ( $settings { 'EXP_MONTH' } eq $exp_sec );
424 print "> $i </option>" ;
427 print "<td> <input type='checkbox' name='UNLIMITED' $checked {'UNLIMITED'}{'on'} /></td><td> <b> $Lang ::tr{'Captive nolimit'}</b></td>" ;
428 print "</tr></table>" ;
430 print "<tr><td><br> $Lang ::tr{'remark'}</td><td><br><input type='text' style='width: 98%;' name='REMARK' align='left'></td></tr>" ;
431 print "<tr><td> </td><td></td></tr></table><br><br>" ;
432 $cgiparams { 'CODE' } = & gencode
();
433 print "<div align='right'><input type='submit' name='ACTION' value=' $Lang ::tr{'Captive genvoucher'}'><input type='hidden' name='CODE' value=' $cgiparams {'CODE'}'></form></div>" ;
436 if (! - z
$voucherout ) { & show_voucher_out
();}
437 if (! - z
$clients ) { & show_voucher_in_use
();}
440 sub show_license_connections
(){
441 #if there are active clients, show the box with active connections
442 return if ( - z
$clients || ! - f
$clients );
445 & Header
:: openbox
( '100%' , 'left' , $Lang :: tr
{ 'Captive voactive' });
447 <center><table class='tbl'>
449 <th align='center' width='15%'> $Lang ::tr{'Captive voucher'}</th><th th align='center' width='15%'> $Lang ::tr{'Captive activated'}</th><th th align='center' width='15%'> $Lang ::tr{'Captive expire'}</th><th align='center' width='50%'><font size='1'> $Lang ::tr{'Captive mac'}</th><th th align='center' width='5%'> $Lang ::tr{'delete'}</th></tr>
452 #read all clients from hash and show table
453 & General
:: readhasharray
( " $clients " , \
%clientshash );
454 foreach my $key ( keys %clientshash ){
455 my $starttime = sub { sprintf ' %02d . %02d . %04d %02d : %02d ' , $_ [ 3 ], $_ [ 4 ]+ 1 , $_ [ 5 ]+ 1900 , $_ [ 2 ], $_ [ 1 ] }->( localtime ( $clientshash { $key }[ 2 ]));
457 if ( $clientshash { $key }[ 3 ] eq '0' ){
458 $endtime = $Lang :: tr
{ 'Captive nolimit' };
460 $endtime = sub { sprintf ' %02d . %02d . %04d %02d : %02d ' , $_ [ 3 ], $_ [ 4 ]+ 1 , $_ [ 5 ]+ 1900 , $_ [ 2 ], $_ [ 1 ] }->( localtime ( $clientshash { $key }[ 2 ]+ $clientshash { $key }[ 3 ]));
465 $col = "bgcolor=' $color {'color20'}'" ;
467 $col = "bgcolor=' $color {'color22'}'" ;
470 print "<td $col ><center> $clientshash { $key }[4]</td><td $col ><center> $starttime " ;
471 print "</center></td><td $col ><center> $endtime " ;
472 print "</td><td $col ><center> $clientshash { $key }[0]</td><td $col ><form method='post'><center><input type='image' src='/images/delete.gif' align='middle' alt=' $Lang ::tr{'delete'}' title=' $Lang ::tr{'delete'}' /><form method='post'><input type='hidden' name='ACTION' value='delvoucherinuse' /><input type='hidden' name='key' value=' $clientshash { $key }[0]' /></form></tr>" ;
480 sub show_voucher_out
(){
481 #if there are already generated but unsused vouchers, print a table
482 return if ( - z
$voucherout );
485 & Header
:: openbox
( '100%' , 'left' , $Lang :: tr
{ 'Captive vout' });
487 <center><table class='tbl' border='0'>
489 <th align='center' width='15%'> $Lang ::tr{'Captive voucher'}</th><th align='center' width='15%'> $Lang ::tr{'date'}</th><th th align='center' width='15%'> $Lang ::tr{'Captive expire'}</th><th align='center' width='60%'> $Lang ::tr{'remark'}</th><th align='center' width='5%'> $Lang ::tr{'delete'}</th></tr>
492 & General
:: readhasharray
( " $voucherout " , \
%voucherhash );
493 foreach my $key ( keys %voucherhash )
495 my $starttime = sub { sprintf ' %02d . %02d . %04d %02d : %02d ' , $_ [ 3 ], $_ [ 4 ]+ 1 , $_ [ 5 ]+ 1900 , $_ [ 2 ], $_ [ 1 ] }->( localtime ( $voucherhash { $key }[ 0 ]));
497 if ( $voucherhash { $key }[ 2 ] eq '0' ){
498 $endtime = $Lang :: tr
{ 'Captive nolimit' };
500 $endtime = sub { sprintf ' %02d . %02d . %04d %02d : %02d ' , $_ [ 3 ], $_ [ 4 ]+ 1 , $_ [ 5 ]+ 1900 , $_ [ 2 ], $_ [ 1 ] }->( localtime ( time ()+ $voucherhash { $key }[ 2 ]));
505 $col = "bgcolor=' $color {'color20'}'" ;
507 $col = "bgcolor=' $color {'color22'}'" ;
511 print "<td $col ><center><b> $voucherhash { $key }[1]</b></td>" ;
512 print "<td $col ><center> $starttime </td>" ;
513 print "<td $col ><center> $endtime </td>" ;
514 print "<td $col align='center'> $voucherhash { $key }[3]</td>" ;
515 print "<td $col ><form method='post'><center><input type='image' src='/images/delete.gif' align='middle' alt=' $Lang ::tr{'delete'}' title=' $Lang ::tr{'delete'}' /><form method='post'><input type='hidden' name='ACTION' value='delvoucherout' /><input type='hidden' name='key' value=' $voucherhash { $key }[0]' /></form></tr>" ;
523 sub show_voucher_in_use
(){
524 #if there are active clients which use vouchers show table
525 return if ( - z
$clients || ! - f
$clients );
528 & Header
:: openbox
( '100%' , 'left' , $Lang :: tr
{ 'Captive voactive' });
530 <center><table class='tbl' width='100%'>
532 <th align='center' width='15%'> $Lang ::tr{'Captive voucher'}</th><th th align='center' width='15%'> $Lang ::tr{'Captive activated'}</th><th align='center' width='15%'> $Lang ::tr{'Captive expire'}</th><th align='center' width='10%'> $Lang ::tr{'Captive mac'}</th><th align='center' width='43%'> $Lang ::tr{'remark'}</th><th th align='center' width='5%'> $Lang ::tr{'delete'}</th></tr>
535 & General
:: readhasharray
( " $clients " , \
%clientshash );
536 foreach my $key ( keys %clientshash )
538 #calculate time from clientshash (starttime)
539 my $starttime = sub { sprintf ' %02d . %02d . %04d %02d : %02d ' , $_ [ 3 ], $_ [ 4 ]+ 1 , $_ [ 5 ]+ 1900 , $_ [ 2 ], $_ [ 1 ] }->( localtime ( $clientshash { $key }[ 2 ]));
540 #calculate endtime from clientshash
542 if ( $clientshash { $key }[ 3 ] eq '0' ){
543 $endtime = $Lang :: tr
{ 'Captive nolimit' };
545 $endtime = sub { sprintf ' %02d . %02d . %04d %02d : %02d ' , $_ [ 3 ], $_ [ 4 ]+ 1 , $_ [ 5 ]+ 1900 , $_ [ 2 ], $_ [ 1 ] }->( localtime ( $clientshash { $key }[ 2 ]+ $clientshash { $key }[ 3 ]));
550 $col = "bgcolor=' $color {'color20'}'" ;
552 $col = "bgcolor=' $color {'color22'}'" ;
556 print "<td $col ><center><b> $clientshash { $key }[4]</b></td><td $col ><center> $starttime " ;
557 print "</center></td><td $col ><center> $endtime </center></td><td $col ><center> $clientshash { $key }[0]</td><td $col ><center> $clientshash { $key }[5]</center>" ;
558 print "</td><td $col ><form method='post'><center><input type='image' src='/images/delete.gif' align='middle' alt=' $Lang ::tr{'delete'}' title=' $Lang ::tr{'delete'}' /><form method='post'><input type='hidden' name='ACTION' value='delvoucherinuse' /><input type='hidden' name='key' value=' $clientshash { $key }[0]' /></form></tr>" ;
568 # Checks a hostname against RFC1035
570 # Each part should be at least two characters in length
571 # but no more than 63 characters
572 if ( length ( $remark ) < 1 || length ( $remark ) > 255 ) {
574 # Only valid characters are a-z, A-Z, 0-9 and -
575 if ( $remark !~ /^[a-zäöüA-ZÖÄÜ0-9-.:;\|_()\/ \s
]*$/) {
577 # First character can only be a letter or a digit
578 if ( substr ( $remark , 0 , 1 ) !~ /^[a-zäöüA-ZÖÄÜ0-9]*$/ ) {
580 # Last character can only be a letter or a digit
581 if ( substr ( $remark , - 1 , 1 ) !~ /^[a-zöäüA-ZÖÄÜ0-9.:;_)]*$/ ) {
588 my ( $width , $height ) = ( undef , undef );
590 if ( $Buffer =~ /IHDR(.{8})/ ) {
592 ( $width , $height ) = unpack ( "NN" , $PNG );
597 return ( $width , $height );
601 #if an errormessage exits, show a box with errormessage
603 & Header
:: openbox
( '100%' , 'left' , $Lang :: tr
{ 'error messages' });
604 print "<class name='base'> $errormessage \n " ;
605 print " </class> \n " ;
610 & Header
:: closebigbox
();
611 & Header
:: closepage
();