version 1.100, 2001/07/05 15:53:09
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version 1.116, 2001/08/16 11:25:03
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Line 12
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Line 12
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# 6/2,6/3,6/8,6/9 Gerd Kortemeyer |
# 6/2,6/3,6/8,6/9 Gerd Kortemeyer |
# 6/12,6/13 H. K. Ng |
# 6/12,6/13 H. K. Ng |
# 6/16 Gerd Kortemeyer |
# 6/16 Gerd Kortemeyer |
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# 7/27 H. K. Ng |
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# 8/7,8/9,8/10,8/11,8/15,8/16 Gerd Kortemeyer |
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package Apache::lonxml; |
package Apache::lonxml; |
use vars |
use vars |
qw(@pwd @outputstack $redirection $import @extlinks $metamode $evaluate %insertlist @namespace); |
qw(@pwd @outputstack $redirection $import @extlinks $metamode $evaluate %insertlist @namespace); |
use strict; |
use strict; |
use HTML::TokeParser; |
use HTML::TokeParser; |
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use HTML::TreeBuilder; |
use Safe; |
use Safe; |
use Safe::Hole; |
use Safe::Hole; |
use Math::Cephes qw(:trigs :hypers :bessels erf erfc); |
use Math::Cephes qw(:trigs :hypers :bessels erf erfc); |
Line 92 sub xmlbegin {
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Line 95 sub xmlbegin {
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} |
} |
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sub xmlend { |
sub xmlend { |
return '</html>'; |
my $discussion=''; |
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if ($ENV{'request.course.id'}) { |
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my $crs='/'.$ENV{'request.course.id'}; |
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if ($ENV{'request.course.sec'}) { |
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$crs.='_'.$ENV{'request.course.sec'}; |
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} |
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$crs=~s/\_/\//g; |
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my $seeid=&Apache::lonnet::allowed('rin',$crs); |
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my $symb=&Apache::lonnet::symbread(); |
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if ($symb) { |
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my %contrib=&Apache::lonnet::restore($symb,$ENV{'request.course.id'}, |
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$ENV{'course.'.$ENV{'request.course.id'}.'.domain'}, |
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$ENV{'course.'.$ENV{'request.course.id'}.'.num'}); |
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if ($contrib{'version'}) { |
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$discussion.= |
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'<address><hr /><h2>Course Discussion of Resource</h2>'; |
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my $idx; |
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for ($idx=1;$idx<=$contrib{'version'};$idx++) { |
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my $hidden=($contrib{'hidden'}=~/\.$idx\./); |
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unless (($hidden) && (!$seeid)) { |
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my $message=$contrib{$idx.':message'}; |
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$message=~s/\n/\<br \/\>/g; |
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if ($message) { |
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if ($hidden) { |
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$message='<font color="#888888">'.$message.'</font>'; |
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} |
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my $sender='Anonymous'; |
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if ((!$contrib{$idx.':anonymous'}) || ($seeid)) { |
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$sender=$contrib{$idx.':sendername'}.' at '. |
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$contrib{$idx.':senderdomain'}; |
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if ($contrib{$idx.':anonymous'}) { |
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$sender.=' (anonymous)'; |
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} |
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if ($seeid) { |
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if ($hidden) { |
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$sender.=' <a href="/adm/feedback?unhide='. |
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$symb.':::'.$idx.'">Make Visible</a>'; |
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} else { |
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$sender.=' <a href="/adm/feedback?hide='. |
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$symb.':::'.$idx.'">Hide</a>'; |
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} |
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} |
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} |
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$discussion.='<p><b>'.$sender.'</b> ('. |
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localtime($contrib{$idx.':timestamp'}). |
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'):<blockquote>'.$message. |
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'</blockquote></p>'; |
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} |
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} |
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} |
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$discussion.='</address>'; |
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} |
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} |
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} |
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return $discussion.'</html>'; |
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} |
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sub maketoken { |
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my ($target,$symb,$tuname,$tudom,$tcrsid)=@_; |
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unless ($symb) { |
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$symb=&Apache::lonnet::symbread(); |
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} |
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unless ($tuname) { |
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$tuname=$ENV{'user.name'}; |
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$tudom=$ENV{'user.domain'}; |
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$tcrsid=$ENV{'request.course.id'}; |
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} |
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my $token=&Apache::lonnet::checkout($symb,$tuname,$tudom,$tcrsid); |
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unless ($token) { return ''; } |
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my %reply=&Apache::lonnet::get('environment', |
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['firstname','middlename','lastname','generation'], |
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$tudom,$tuname); |
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my $plainname=$reply{'firstname'}.' '. |
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$reply{'middlename'}.' '. |
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$reply{'lastname'}.' '. |
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$reply{'generation'}; |
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if ($target eq 'web') { |
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return |
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'<img align="right" src="/cgi-bin/barcode.gif?encode='.$token.'" />'. |
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'Checked out for '.$plainname. |
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'<br />User: '.$tuname.' at '.$tudom. |
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'<br />CourseID: '.$tcrsid.')'. |
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'<br />DocID: '.$token. |
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'<br />Time: '.localtime().'<hr />'; |
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} else { |
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return $token; |
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} |
} |
} |
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sub fontsettings() { |
sub fontsettings() { |
Line 107 sub fontsettings() {
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Line 200 sub fontsettings() {
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sub registerurl { |
sub registerurl { |
my $forcereg=shift; |
my $forcereg=shift; |
if ($Apache::lonxml::registered) { return ''; } |
if ($Apache::lonxml::registered) { return ''; } |
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$Apache::lonxml::registered=1; |
if (($ENV{'REQUEST_URI'}!~/^\/(res\/)*adm\//) || ($forcereg)) { |
if (($ENV{'REQUEST_URI'}!~/^\/(res\/)*adm\//) || ($forcereg)) { |
my $hwkadd=''; |
my $hwkadd=''; |
if ($ENV{'REQUEST_URI'}=~/\.(problem|exam|quiz|assess|survey|form)$/) { |
if ($ENV{'REQUEST_URI'}=~/\.(problem|exam|quiz|assess|survey|form)$/) { |
Line 144 ENDPARM
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Line 238 ENDPARM
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menu.currentStale=0; |
menu.currentStale=0; |
menu.clearbut(3,1); |
menu.clearbut(3,1); |
menu.switchbutton |
menu.switchbutton |
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(6,3,'catalog.gif','catalog','info','catalog_info()'); |
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menu.switchbutton |
(8,1,'eval.gif','evaluate','this','gopost("/adm/evaluate",currentURL)'); |
(8,1,'eval.gif','evaluate','this','gopost("/adm/evaluate",currentURL)'); |
menu.switchbutton |
menu.switchbutton |
(8,2,'fdbk.gif','feedback','on this','gopost("/adm/feedback",currentURL)'); |
(8,2,'fdbk.gif','feedback','on this','gopost("/adm/feedback",currentURL)'); |
Line 172 ENDPARM
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Line 268 ENDPARM
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menu.clearbut(7,3); |
menu.clearbut(7,3); |
menu.menucltim=menu.setTimeout( |
menu.menucltim=menu.setTimeout( |
'clearbut(2,1);clearbut(2,3);clearbut(8,1);clearbut(8,2);clearbut(8,3);'+ |
'clearbut(2,1);clearbut(2,3);clearbut(8,1);clearbut(8,2);clearbut(8,3);'+ |
'clearbut(9,1);clearbut(9,2);clearbut(9,3);', |
'clearbut(9,1);clearbut(9,2);clearbut(9,3);clearbut(6,3)', |
2000); |
2000); |
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} |
} |
Line 234 sub xmlparse {
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Line 330 sub xmlparse {
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&setup_globals($target); |
&setup_globals($target); |
#&printalltags(); |
#&printalltags(); |
my @pars = (); |
my @pars = (); |
@Apache::lonxml::pwd=(); |
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my $pwd=$ENV{'request.filename'}; |
my $pwd=$ENV{'request.filename'}; |
$pwd =~ s:/[^/]*$::; |
$pwd =~ s:/[^/]*$::; |
&newparser(\@pars,\$content_file_string,$pwd); |
&newparser(\@pars,\$content_file_string,$pwd); |
my $currentstring = ''; |
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my $finaloutput = ''; |
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my $newarg = ''; |
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my $result; |
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my $safeeval = new Safe; |
my $safeeval = new Safe; |
my $safehole = new Safe::Hole; |
my $safehole = new Safe::Hole; |
Line 253 sub xmlparse {
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Line 344 sub xmlparse {
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my @stack = (); |
my @stack = (); |
my @parstack = (); |
my @parstack = (); |
&initdepth; |
&initdepth; |
my $token; |
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while ( $#pars > -1 ) { |
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while ($token = $pars[$#pars]->get_token) { |
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if (($token->[0] eq 'T') || ($token->[0] eq 'C') || ($token->[0] eq 'D') ) { |
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if ($metamode<1) { $result=$token->[1]; } |
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} elsif ($token->[0] eq 'PI') { |
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if ($metamode<1) { $result=$token->[2]; } |
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} elsif ($token->[0] eq 'S') { |
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# add tag to stack |
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push (@stack,$token->[1]); |
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# add parameters list to another stack |
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push (@parstack,&parstring($token)); |
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&increasedepth($token); |
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if (exists $style_for_target{$token->[1]}) { |
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if ($Apache::lonxml::redirection) { |
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$Apache::lonxml::outputstack['-1'] .= |
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&recurse($style_for_target{$token->[1]},$target,$safeeval, |
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\%style_for_target,@parstack); |
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} else { |
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$finaloutput .= &recurse($style_for_target{$token->[1]},$target, |
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$safeeval,\%style_for_target,@parstack); |
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} |
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} else { |
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$result = &callsub("start_$token->[1]", $target, $token, \@stack, |
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\@parstack, \@pars, $safeeval, \%style_for_target); |
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} |
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} elsif ($token->[0] eq 'E') { |
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#clear out any tags that didn't end |
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while ($token->[1] ne $stack[$#stack] && ($#stack > -1)) { |
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&Apache::lonxml::warning("Unbalanced tags in resource $stack['-1']"); |
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&end_tag(\@stack,\@parstack,$token); |
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} |
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if (exists $style_for_target{'/'."$token->[1]"}) { |
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if ($Apache::lonxml::redirection) { |
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$Apache::lonxml::outputstack['-1'] .= |
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&recurse($style_for_target{'/'."$token->[1]"}, |
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$target,$safeeval,\%style_for_target,@parstack); |
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} else { |
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$finaloutput .= &recurse($style_for_target{'/'."$token->[1]"}, |
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$target,$safeeval,\%style_for_target, |
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@parstack); |
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} |
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} else { |
my $finaloutput = &inner_xmlparse($target,\@stack,\@parstack,\@pars, |
$result = &callsub("end_$token->[1]", $target, $token, \@stack, |
$safeeval,\%style_for_target); |
\@parstack, \@pars,$safeeval, \%style_for_target); |
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} |
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} else { |
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&Apache::lonxml::error("Unknown token event :$token->[0]:$token->[1]:"); |
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} |
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#evaluate variable refs in result |
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if ($result ne "") { |
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if ( $#parstack > -1 ) { |
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if ($Apache::lonxml::redirection) { |
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$Apache::lonxml::outputstack['-1'] .= |
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&Apache::run::evaluate($result,$safeeval,$parstack[$#parstack]); |
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} else { |
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$finaloutput .= &Apache::run::evaluate($result,$safeeval, |
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$parstack[$#parstack]); |
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} |
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} else { |
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$finaloutput .= &Apache::run::evaluate($result,$safeeval,''); |
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} |
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$result = ''; |
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} |
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if ($token->[0] eq 'E') { |
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&end_tag(\@stack,\@parstack,$token); |
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} |
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} |
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pop @pars; |
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pop @Apache::lonxml::pwd; |
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} |
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# if ($target eq 'meta') { |
return $finaloutput; |
# $finaloutput.=&endredirection; |
} |
# } |
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if (($ENV{'QUERY_STRING'}) && ($target eq 'web')) { |
sub htmlclean { |
$finaloutput=&afterburn($finaloutput); |
my ($raw,$full)=@_; |
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my $tree = HTML::TreeBuilder->new; |
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$tree->ignore_unknown(0); |
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$tree->parse($raw); |
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my $output= $tree->as_HTML(undef,' '); |
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$output=~s/\<(br|hr|img|meta|allow)([^\>\/]*)\>/\<$1$2 \/\>/gis; |
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$output=~s/\<\/(br|hr|img|meta|allow)\>//gis; |
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unless ($full) { |
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$output=~s/\<[\/]*(body|head|html)\>//gis; |
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} |
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$tree = $tree->delete; |
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return $output; |
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} |
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sub inner_xmlparse { |
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my ($target,$stack,$parstack,$pars,$safeeval,$style_for_target)=@_; |
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&Apache::lonxml::debug('Reentrant parser starting, again?'); |
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my $finaloutput = ''; |
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my $result; |
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my $token; |
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while ( $#$pars > -1 ) { |
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while ($token = $$pars['-1']->get_token) { |
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if (($token->[0] eq 'T') || ($token->[0] eq 'C') || ($token->[0] eq 'D') ) { |
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if ($metamode<1) { |
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$result=$token->[1]; |
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} |
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} elsif ($token->[0] eq 'PI') { |
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if ($metamode<1) { |
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$result=$token->[2]; |
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} |
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} elsif ($token->[0] eq 'S') { |
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# add tag to stack |
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push (@$stack,$token->[1]); |
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# add parameters list to another stack |
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push (@$parstack,&parstring($token)); |
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&increasedepth($token); |
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if (exists $$style_for_target{$token->[1]}) { |
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if ($Apache::lonxml::redirection) { |
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$Apache::lonxml::outputstack['-1'] .= |
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&recurse($$style_for_target{$token->[1]},$target,$safeeval, |
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$style_for_target,@$parstack); |
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} else { |
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$finaloutput .= &recurse($$style_for_target{$token->[1]},$target, |
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$safeeval,$style_for_target,@$parstack); |
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} |
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} else { |
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$result = &callsub("start_$token->[1]", $target, $token, $stack, |
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$parstack, $pars, $safeeval, $style_for_target); |
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} |
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} elsif ($token->[0] eq 'E') { |
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#clear out any tags that didn't end |
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while ($token->[1] ne $$stack['-1'] && ($#$stack > -1)) { |
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&Apache::lonxml::warning("Unbalanced tags in resource $$stack['-1']"); |
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&end_tag($stack,$parstack,$token); |
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} |
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if (exists $$style_for_target{'/'."$token->[1]"}) { |
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if ($Apache::lonxml::redirection) { |
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$Apache::lonxml::outputstack['-1'] .= |
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&recurse($$style_for_target{'/'."$token->[1]"}, |
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$target,$safeeval,$style_for_target,@$parstack); |
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} else { |
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$finaloutput .= &recurse($$style_for_target{'/'."$token->[1]"}, |
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$target,$safeeval,$style_for_target, |
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@$parstack); |
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} |
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} else { |
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$result = &callsub("end_$token->[1]", $target, $token, $stack, |
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$parstack, $pars,$safeeval, $style_for_target); |
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} |
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} else { |
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&Apache::lonxml::error("Unknown token event :$token->[0]:$token->[1]:"); |
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} |
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#evaluate variable refs in result |
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if ($result ne "") { |
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if ( $#$parstack > -1 ) { |
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if ($Apache::lonxml::redirection) { |
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$Apache::lonxml::outputstack['-1'] .= |
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&Apache::run::evaluate($result,$safeeval,$$parstack['-1']); |
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} else { |
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$finaloutput .= &Apache::run::evaluate($result,$safeeval, |
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$$parstack['-1']); |
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} |
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} else { |
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$finaloutput .= &Apache::run::evaluate($result,$safeeval,''); |
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} |
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$result = ''; |
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} |
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if ($token->[0] eq 'E') { |
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&end_tag($stack,$parstack,$token); |
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} |
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} |
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pop @$pars; |
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pop @Apache::lonxml::pwd; |
} |
} |
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return $finaloutput; |
# if ($target eq 'meta') { |
} |
# $finaloutput.=&endredirection; |
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# } |
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if (($ENV{'QUERY_STRING'}) && ($target eq 'web')) { |
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$finaloutput=&afterburn($finaloutput); |
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} |
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return $finaloutput; |
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} |
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sub recurse { |
sub recurse { |
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my @innerstack = (); |
my @innerstack = (); |
my @innerparstack = (); |
my @innerparstack = (); |
my ($newarg,$target,$safeeval,$style_for_target,@parstack) = @_; |
my ($newarg,$target,$safeeval,$style_for_target,@parstack) = @_; |
Line 470 sub callsub {
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Line 595 sub callsub {
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sub setup_globals { |
sub setup_globals { |
my ($target)=@_; |
my ($target)=@_; |
$Apache::lonxml::registered = 0; |
$Apache::lonxml::registered = 0; |
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@Apache::lonxml::pwd=(); |
if ($target eq 'meta') { |
if ($target eq 'meta') { |
$Apache::lonxml::redirection = 0; |
$Apache::lonxml::redirection = 0; |
$Apache::lonxml::metamode = 1; |
$Apache::lonxml::metamode = 1; |
Line 504 sub init_safespace {
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Line 630 sub init_safespace {
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$safeeval->permit(":base_math"); |
$safeeval->permit(":base_math"); |
$safeeval->permit("sort"); |
$safeeval->permit("sort"); |
$safeeval->deny(":base_io"); |
$safeeval->deny(":base_io"); |
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$safehole->wrap(\&Apache::scripttag::xmlparse,$safeeval,'&xmlparse'); |
$safehole->wrap(\&Apache::lonnet::EXT,$safeeval,'&EXT'); |
$safehole->wrap(\&Apache::lonnet::EXT,$safeeval,'&EXT'); |
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$safehole->wrap(\&Math::Cephes::asin,$safeeval,'&asin'); |
$safehole->wrap(\&Math::Cephes::asin,$safeeval,'&asin'); |
Line 686 sub parstring {
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Line 813 sub parstring {
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sub writeallows { |
sub writeallows { |
my $thisurl='/res/'.&Apache::lonnet::declutter(shift); |
my $thisurl='/res/'.&Apache::lonnet::declutter(shift); |
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if ($ENV{'httpref.'.$thisurl}) { |
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$thisurl=$ENV{'httpref.'.$thisurl}; |
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} |
my $thisdir=$thisurl; |
my $thisdir=$thisurl; |
$thisdir=~s/\/[^\/]+$//; |
$thisdir=~s/\/[^\/]+$//; |
my %httpref=(); |
my %httpref=(); |
Line 773 SIMPLECONTENT
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Line 903 SIMPLECONTENT
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<form method="post"> |
<form method="post"> |
<textarea cols="80" rows="40" name="filecont">$filecontents</textarea> |
<textarea cols="80" rows="40" name="filecont">$filecontents</textarea> |
<br /> |
<br /> |
<input type="submit" name="savethisfile" value="Save this file" /> |
<input type="submit" name="attemptclean" |
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value="Save and then attempt to clean HTML" /> |
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<input type="submit" name="savethisfile" value="Save this" /> |
</form> |
</form> |
ENDFOOTER |
ENDFOOTER |
$result=~s/(\<body[^\>]*\>)/$1$editheader/is; |
$result=~s/(\<body[^\>]*\>)/$1$editheader/is; |
Line 804 sub handler {
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Line 936 sub handler {
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# Edit action? Save file. |
# Edit action? Save file. |
# |
# |
unless ($ENV{'request.state'} eq 'published') { |
unless ($ENV{'request.state'} eq 'published') { |
if ($ENV{'form.savethisfile'}) { |
if (($ENV{'form.savethisfile'}) || ($ENV{'form.attemptclean'})) { |
&storefile($file,$ENV{'form.filecont'}); |
&storefile($file,$ENV{'form.filecont'}); |
} |
} |
} |
} |
Line 824 sub handler {
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Line 956 sub handler {
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ENDNOTFOUND |
ENDNOTFOUND |
$filecontents=''; |
$filecontents=''; |
} else { |
} else { |
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unless ($ENV{'request.state'} eq 'published') { |
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if ($ENV{'form.attemptclean'}) { |
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$filecontents=&htmlclean($filecontents,1); |
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} |
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} |
$result = &Apache::lonxml::xmlparse($target,$filecontents,'',%mystyle); |
$result = &Apache::lonxml::xmlparse($target,$filecontents,'',%mystyle); |
} |
} |
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