--- loncom/xml/lonxml.pm 2003/10/30 20:22:00 1.290
+++ loncom/xml/lonxml.pm 2005/04/07 00:42:07 1.371
@@ -1,7 +1,7 @@
# The LearningOnline Network with CAPA
# XML Parser Module
#
-# $Id: lonxml.pm,v 1.290 2003/10/30 20:22:00 albertel Exp $
+# $Id: lonxml.pm,v 1.371 2005/04/07 00:42:07 albertel Exp $
#
# Copyright Michigan State University Board of Trustees
#
@@ -36,30 +36,11 @@
# The C source of the Code may not be distributed by the Licensee
# to any other parties under any circumstances.
#
-# last modified 06/26/00 by Alexander Sakharuk
-# 11/6 Gerd Kortemeyer
-# 6/1/1 Gerd Kortemeyer
-# 2/21,3/13 Guy
-# 3/29,5/4 Gerd Kortemeyer
-# 5/26 Gerd Kortemeyer
-# 5/27 H. K. Ng
-# 6/2,6/3,6/8,6/9 Gerd Kortemeyer
-# 6/12,6/13 H. K. Ng
-# 6/16 Gerd Kortemeyer
-# 7/27 H. K. Ng
-# 8/7,8/9,8/10,8/11,8/15,8/16,8/17,8/18,8/20,8/23,8/24 Gerd Kortemeyer
-# Guy Albertelli
-# 9/26 Gerd Kortemeyer
-# Dec Guy Albertelli
-# YEAR=2002
-# 1/1 Gerd Kortemeyer
-# 1/2 Matthew Hall
-# 1/3 Gerd Kortemeyer
-#
+
package Apache::lonxml;
use vars
-qw(@pwd @outputstack $redirection $import @extlinks $metamode $evaluate %insertlist @namespace $prevent_entity_encode $errorcount $warningcount);
+qw(@pwd @outputstack $redirection $import @extlinks $metamode $evaluate %insertlist @namespace $errorcount $warningcount @htmlareafields);
use strict;
use HTML::LCParser();
use HTML::TreeBuilder();
@@ -70,7 +51,7 @@ use Math::Cephes();
use Math::Random();
use Opcode();
use POSIX qw(strftime);
-
+use Time::HiRes qw( gettimeofday tv_interval );
sub register {
my ($space,@taglist) = @_;
@@ -141,9 +122,6 @@ $evaluate = 1;
# stores the list of active tag namespaces
@namespace=();
-# if 0 all high ASCII characters will be encoded into HTML Entities
-$prevent_entity_encode=0;
-
# has the dynamic menu been updated to know about this resource
$Apache::lonxml::registered=0;
@@ -167,29 +145,54 @@ $Apache::lonxml::style_end_values='';
#should we do the postag variable interpolation
$Apache::lonxml::post_evaluate=1;
+#a header message to emit in the case of any generated warning or errors
+$Apache::lonxml::warnings_error_header='';
+
sub xmlbegin {
- my $output='';
- if ($ENV{'browser.mathml'}) {
- $output='<?xml version="1.0"?>'
- .'<?xml-stylesheet type="text/css" href="/adm/MathML/mathml.css"?>'
- .'<!DOCTYPE html SYSTEM "/adm/MathML/mathml.dtd" '
- .'[<!ENTITY mathns "http://www.w3.org/1998/Math/MathML">]>'
+ my ($style)=@_;
+ my $output='';
+ @htmlareafields=();
+ if ($ENV{'browser.mathml'}) {
+ $output='<?xml version="1.0"?>'
+ #.'<?xml-stylesheet type="text/css" href="/adm/MathML/mathml.css"?>'."\n"
+# .'<!DOCTYPE html SYSTEM "/adm/MathML/mathml.dtd" '
+
+# .'<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" [<!ENTITY mathns "http://www.w3.org/1998/Math/MathML">] >'
+ .'<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1 plus MathML 2.0 plus SVG 1.1//EN" "http://www.w3.org/2002/04/xhtml-math-svg/xhtml-math-svg.dtd">'
.'<html xmlns:math="http://www.w3.org/1998/Math/MathML" '
- .'xmlns="http://www.w3.org/TR/REC-html40">';
- } else {
- $output='<html>';
- }
- return $output;
+ .'xmlns="http://www.w3.org/1999/xhtml">';
+ } else {
+ $output='<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html>';
+ }
+ if ($style eq 'encode') {
+ $output=&HTML::Entities::encode($output,'<>&"');
+ }
+ return $output;
}
sub xmlend {
+ my ($target,$parser)=@_;
my $mode='xml';
my $status='OPEN';
- if ($Apache::lonhomework::parsing_a_problem) {
+ if ($Apache::lonhomework::parsing_a_problem ||
+ $Apache::lonhomework::parsing_a_task ) {
$mode='problem';
$status=$Apache::inputtags::status[-1];
}
- return &Apache::lonfeedback::list_discussion().'</html>';
+ my $discussion;
+ &Apache::loncommon::get_unprocessed_cgi
+ ($ENV{'query_string'},['LONCAPA_INTERNAL_no_discussion']);
+ if (! exists($ENV{'form.LONCAPA_INTERNAL_no_discussion'}) ||
+ $ENV{'form.LONCAPA_INTERNAL_no_discussion'} ne 'true') {
+ $discussion=&Apache::lonfeedback::list_discussion($mode,$status);
+ }
+ if ($target eq 'tex') {
+ $discussion.='<tex>\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}\end{document}</tex>';
+ &Apache::lonxml::newparser($parser,\$discussion,'');
+ return '';
+ } else {
+ return $discussion.&Apache::loncommon::endbodytag();
+ }
}
sub tokeninputfield {
@@ -293,11 +296,11 @@ sub printtokenheader {
}
}
-sub fontsettings() {
+sub fontsettings {
my $headerstring='';
if (($ENV{'browser.os'} eq 'mac') && (!$ENV{'browser.mathml'})) {
$headerstring.=
- '<meta Content-Type="text/html; charset=x-mac-roman">';
+ '<meta Content-Type="text/html; charset=x-mac-roman" />';
} elsif (!$ENV{'browser.mathml'} && $ENV{'browser.unicode'}) {
$headerstring.=
'<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />';
@@ -318,6 +321,7 @@ sub xmlparse {
&setup_globals($request,$target);
&Apache::inputtags::initialize_inputtags();
+ &Apache::bridgetask::initialize_bridgetask();
&Apache::outputtags::initialize_outputtags();
&Apache::edit::initialize_edit();
&Apache::londefdef::initialize_londefdef();
@@ -330,13 +334,22 @@ sub xmlparse {
my $bodytext=
$ENV{'course.'.$ENV{'request.course.id'}.'.default_xml_style'};
if ($bodytext) {
- my $location=&Apache::lonnet::filelocation('',$bodytext);
- my $styletext=&Apache::lonnet::getfile($location);
+ foreach my $file (split(',',$bodytext)) {
+ my $location=&Apache::lonnet::filelocation('',$file);
+ my $styletext=&Apache::lonnet::getfile($location);
+ if ($styletext ne '-1') {
+ %style_for_target = (%style_for_target,
+ &Apache::style::styleparser($target,$styletext));
+ }
+ }
+ }
+ } elsif ($ENV{'construct.style'} && ($ENV{'request.state'} eq 'construct')) {
+ my $location=&Apache::lonnet::filelocation('',$ENV{'construct.style'});
+ my $styletext=&Apache::lonnet::getfile($location);
if ($styletext ne '-1') {
%style_for_target = (%style_for_target,
&Apache::style::styleparser($target,$styletext));
- }
- }
+ }
}
#&printalltags();
my @pars = ();
@@ -353,8 +366,8 @@ sub xmlparse {
my @stack = ();
my @parstack = ();
- &initdepth;
-
+ &initdepth();
+ &init_alarm();
my $finaloutput = &inner_xmlparse($target,\@stack,\@parstack,\@pars,
$safeeval,\%style_for_target);
@@ -363,48 +376,64 @@ sub xmlparse {
}
&do_registered_ssi();
if ($Apache::lonxml::counter_changed) { &store_counter() }
+ if ($ENV{'form.return_only_error_and_warning_counts'}) {
+ return "$errorcount:$warningcount";
+ }
return $finaloutput;
}
sub htmlclean {
my ($raw,$full)=@_;
+# Take care of CRLF etc
- my $tree = HTML::TreeBuilder->new;
- $tree->ignore_unknown(0);
-
- $tree->parse($raw);
-
- my $output= $tree->as_HTML(undef,' ');
-
- $output=~s/\<(br|hr|img|meta|allow)(.*?)\>/\<$1$2 \/\>/gis;
- $output=~s/\<\/(br|hr|img|meta|allow)\>//gis;
+ $raw=~s/\r\f/\n/gs; $raw=~s/\f\r/\n/gs;
+ $raw=~s/\r\n/\n/gs; $raw=~s/\n\r/\n/gs;
+ $raw=~s/\f/\n/gs; $raw=~s/\r/\n/gs;
+ $raw=~s/\&\#10\;/\n/gs; $raw=~s/\&\#13\;/\n/gs;
+
+# Generate empty tags, remove wrong end tags
+ $raw=~s/\<(br|hr|img|meta|allow|basefont)([^\>\/]*?)\>/\<$1$2 \/\>/gis;
+ $raw=~s/\<\/(br|hr|img|meta|allow|basefont)\>//gis;
unless ($full) {
- $output=~s/\<[\/]*(body|head|html)\>//gis;
+ $raw=~s/\<[\/]*(body|head|html)\>//gis;
}
-
- $tree = $tree->delete;
-
- return $output;
+# Make standard tags lowercase
+ foreach ('html','body','head','meta','h1','h2','h3','h4','b','i','m',
+ 'table','tr','td','th','p','br','hr','img','embed','font',
+ 'a','strong','center','title','basefont','li','ol','ul',
+ 'input','select','form','option','script','pre') {
+ $raw=~s/\<$_\s*\>/\<$_\>/gis;
+ $raw=~s/\<\/$_\s*\>/<\/$_\>/gis;
+ $raw=~s/\<$_\s([^\>]*)\>/<$_ $1\>/gis;
+ }
+ return $raw;
}
sub latex_special_symbols {
my ($string,$where)=@_;
if ($where eq 'header') {
$string =~ s/(\\|_|\^)/ /g;
- $string =~ s/(\$|%|\#|&|\{|\})/\\$1/g;
+ $string =~ s/(\$|%|\{|\})/\\$1/g;
$string =~ s/_/ /g;
+ $string=&Apache::lonprintout::character_chart($string);
+ # any & or # leftover should be safe to just escape
+ $string=~s/([^\\])\&/$1\\\&/g;
+ $string=~s/([^\\])\#/$1\\\#/g;
} else {
- $string=~s/\\ /\\char92 /g;
- $string=~s/\^/\\\^ /g;
- $string=~s/\~/\\char126 /g;
- $string=~s/(&[^A-Za-z\#])/\\$1/g;
- $string=~s/([^&])\#/$1\\#/g;
- $string=~s/(\$|_|{|})/\\$1/g;
- $string=~s/\\char92 /\\texttt{\\char92}/g;
- $string=~s/(>|<)/\$$1\$/g; #more or less
- if ($string=~m/\d%/) {$string =~ s/(\d)%/$1\\%/g;} #percent after digit
- if ($string=~m/\s%/) {$string =~ s/(\s)%/$1\\%/g;} #percent after space
- if ($string eq '%.') {$string = '\%.';} #percent at the end of statement
+ $string=~s/\\/\\ensuremath{\\backslash}/g;
+ $string=~s/\\\%|\%/\\\%/g;
+ $string=~s/\\{|{/\\{/g;
+ $string=~s/\\}|}/\\}/g;
+ $string=~s/\\\$|\$/\\\$/g;
+ $string=~s/\\\_|\_/\\\_/g;
+ $string=~s/([^\\]|^)(\~|\^)/$1\\$2\\strut /g;
+ $string=~s/(>|<)/\\ensuremath\{$1\}/g; #more or less
+ $string=&Apache::lonprintout::character_chart($string);
+ # any & or # leftover should be safe to just escape
+ $string=~s/\\\&|\&/\\\&/g;
+ $string=~s/\\\#|\#/\\\#/g;
+ $string=~s/\|/\$\\mid\$/g;
+#single { or } How to escape?
}
return $string;
}
@@ -467,7 +496,7 @@ sub inner_xmlparse {
#clear out any tags that didn't end
while ($token->[1] ne $$stack['-1'] && ($#$stack > -1)) {
my $lasttag=$$stack[-1];
- if ($token->[1] =~ /^$lasttag$/i) {
+ if ($token->[1] =~ /^\Q$lasttag\E$/i) {
&Apache::lonxml::warning('Using tag </'.$token->[1].'> on line '.$token->[3].' as end tag to <'.$$stack[-1].'>');
last;
} else {
@@ -502,10 +531,6 @@ sub inner_xmlparse {
}
}
- # Encode any high ASCII characters
-# if (!$Apache::lonxml::prevent_entity_encode) {
-# $result=&HTML::Entities::encode($result,"\200-\377");
-# }
if ($Apache::lonxml::redirection) {
$Apache::lonxml::outputstack['-1'] .= $result;
} else {
@@ -535,6 +560,10 @@ sub inner_xmlparse {
return $finaloutput;
}
+##
+## Looks to see if there is a subroutine defined for this tag. If so, call it,
+## otherwise do not call it as we do not know what it is.
+##
sub callsub {
my ($sub,$target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
my $currentstring='';
@@ -567,6 +596,10 @@ sub callsub {
$parstack,$parser,$safeeval,
$style);
} else {
+ if ($target eq 'tex') {
+ # throw away tag name
+ return '';
+ }
#&Apache::lonxml::debug("NOT Calling sub $sub in $space $metamode");
if ($metamode <1) {
if (defined($token->[4]) && ($metamode < 1)) {
@@ -607,6 +640,7 @@ sub setup_globals {
my ($request,$target)=@_;
$Apache::lonxml::request=$request;
$Apache::lonxml::registered = 0;
+ @Apache::lonxml::htmlareafields=();
$errorcount=0;
$warningcount=0;
$Apache::lonxml::default_homework_loaded=0;
@@ -616,6 +650,7 @@ sub setup_globals {
@Apache::lonxml::extlinks=();
@Apache::lonxml::ssi_info=();
$Apache::lonxml::post_evaluate=1;
+ $Apache::lonxml::warnings_error_header='';
if ($target eq 'meta') {
$Apache::lonxml::redirection = 0;
$Apache::lonxml::metamode = 1;
@@ -660,11 +695,16 @@ sub init_safespace {
$safeeval->permit(":base_math");
$safeeval->permit("sort");
$safeeval->permit("time");
+ $safeeval->deny("rand");
+ $safeeval->deny("srand");
$safeeval->deny(":base_io");
$safehole->wrap(\&Apache::scripttag::xmlparse,$safeeval,'&xmlparse');
$safehole->wrap(\&Apache::outputtags::multipart,$safeeval,'&multipart');
$safehole->wrap(\&Apache::lonnet::EXT,$safeeval,'&EXT');
-
+ $safehole->wrap(\&Apache::chemresponse::chem_standard_order,$safeeval,
+ '&chem_standard_order');
+ $safehole->wrap(\&Apache::response::check_status,$safeeval,'&check_status');
+
$safehole->wrap(\&Math::Cephes::asin,$safeeval,'&asin');
$safehole->wrap(\&Math::Cephes::acos,$safeeval,'&acos');
$safehole->wrap(\&Math::Cephes::atan,$safeeval,'&atan');
@@ -736,16 +776,21 @@ sub init_safespace {
$safehole->wrap(\&Math::Random::random_set_seed_from_phrase,$safeeval,'&random_set_seed_from_phrase');
$safehole->wrap(\&Math::Random::random_get_seed,$safeeval,'&random_get_seed');
$safehole->wrap(\&Math::Random::random_set_seed,$safeeval,'&random_set_seed');
+ $safehole->wrap(\&Apache::lonxml::error,$safeeval,'&LONCAPA_INTERNAL_ERROR');
+ $safehole->wrap(\&Apache::lonxml::debug,$safeeval,'&LONCAPA_INTERNAL_DEBUG');
+ $safehole->wrap(\&Apache::caparesponse::get_sigrange,$safeeval,'&LONCAPA_INTERNAL_get_sigrange');
#need to inspect this class of ops
# $safeeval->deny(":base_orig");
+ $safeeval->permit("require");
$safeinit .= ';$external::target="'.$target.'";';
my $rndseed;
my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
$rndseed=&Apache::lonnet::rndseed($symb,$courseid,$domain,$name);
- $safeinit .= ';$external::randomseed='.$rndseed.';';
+ $safeinit .= ';$external::randomseed="'.$rndseed.'";';
&Apache::lonxml::debug("Setting rndseed to $rndseed");
&Apache::run::run($safeinit,$safeeval);
+
}
sub default_homework_load {
@@ -760,18 +805,48 @@ sub default_homework_load {
}
}
+{
+ my $alarm_depth;
+ sub init_alarm {
+ alarm(0);
+ $alarm_depth=0;
+ }
+
+ sub start_alarm {
+ if ($alarm_depth<1) {
+ my $old=alarm($Apache::lonnet::perlvar{'lonScriptTimeout'});
+ if ($old) {
+ &Apache::lonxml::error("Cancelled an alarm of $old, this shouldn't occur.");
+ }
+ }
+ $alarm_depth++;
+ }
+
+ sub end_alarm {
+ $alarm_depth--;
+ if ($alarm_depth<1) { alarm(0); }
+ }
+}
+my $metamode_was;
sub startredirection {
- $Apache::lonxml::redirection++;
- push (@Apache::lonxml::outputstack, '');
+ if (!$Apache::lonxml::redirection) {
+ $metamode_was=$Apache::lonxml::metamode;
+ }
+ $Apache::lonxml::metamode=0;
+ $Apache::lonxml::redirection++;
+ push (@Apache::lonxml::outputstack, '');
}
sub endredirection {
- if (!$Apache::lonxml::redirection) {
- &Apache::lonxml::error("Endredirection was called, before a startredirection, perhaps you have unbalanced tags. Some debuging information:".join ":",caller);
- return '';
- }
- $Apache::lonxml::redirection--;
- pop @Apache::lonxml::outputstack;
+ if (!$Apache::lonxml::redirection) {
+ &Apache::lonxml::error("Endredirection was called, before a startredirection, perhaps you have unbalanced tags. Some debuging information:".join ":",caller);
+ return '';
+ }
+ $Apache::lonxml::redirection--;
+ if (!$Apache::lonxml::redirection) {
+ $Apache::lonxml::metamode=$metamode_was;
+ }
+ pop @Apache::lonxml::outputstack;
}
sub end_tag {
@@ -787,6 +862,8 @@ sub initdepth {
$Apache::lonxml::olddepth=-1;
}
+my @timers;
+my $lasttime;
sub increasedepth {
my ($token) = @_;
$Apache::lonxml::depth++;
@@ -794,8 +871,15 @@ sub increasedepth {
if ($Apache::lonxml::depthcounter[$Apache::lonxml::depth]==1) {
$Apache::lonxml::olddepth=$Apache::lonxml::depth;
}
+ my $time;
+ if ($Apache::lonxml::debug eq "1") {
+ push(@timers,[&gettimeofday()]);
+ $time=&tv_interval($lasttime);
+ $lasttime=[&gettimeofday()];
+ }
+ my $spacing=' 'x($Apache::lonxml::depth-1);
my $curdepth=join('_',@Apache::lonxml::depthcounter);
- &Apache::lonxml::debug("s $Apache::lonxml::depth : $Apache::lonxml::olddepth : $curdepth : $token->[1]\n");
+ &Apache::lonxml::debug("s$spacing$Apache::lonxml::depth : $Apache::lonxml::olddepth : $curdepth : $token->[1] : $time : \n");
#print "<br />s $Apache::lonxml::depth : $Apache::lonxml::olddepth : $curdepth : $token->[1]\n";
}
@@ -810,37 +894,44 @@ sub decreasedepth {
&Apache::lonxml::warning(&mt("Missing tags, unable to properly run file."));
$Apache::lonxml::depth='-1';
}
+ my ($timer,$time);
+ if ($Apache::lonxml::debug eq "1") {
+ $timer=pop(@timers);
+ $time=&tv_interval($lasttime);
+ $lasttime=[&gettimeofday()];
+ }
+ my $spacing=' 'x$Apache::lonxml::depth;
my $curdepth=join('_',@Apache::lonxml::depthcounter);
- &Apache::lonxml::debug("e $Apache::lonxml::depth : $Apache::lonxml::olddepth : $token->[1] : $curdepth\n");
+ &Apache::lonxml::debug("e$spacing$Apache::lonxml::depth : $Apache::lonxml::olddepth : $curdepth : $token->[1] : $time : ".&tv_interval($timer)."\n");
#print "<br />e $Apache::lonxml::depth : $Apache::lonxml::olddepth : $token->[1] : $curdepth\n";
}
sub get_all_text_unbalanced {
#there is a copy of this in lonpublisher.pm
- my($tag,$pars)= @_;
- my $token;
- my $result='';
- $tag='<'.$tag.'>';
- while ($token = $$pars[-1]->get_token) {
- if (($token->[0] eq 'T')||($token->[0] eq 'C')||($token->[0] eq 'D')) {
- $result.=$token->[1];
- } elsif ($token->[0] eq 'PI') {
- $result.=$token->[2];
- } elsif ($token->[0] eq 'S') {
- $result.=$token->[4];
- } elsif ($token->[0] eq 'E') {
- $result.=$token->[2];
- }
- if ($result =~ /(.*)\Q$tag\E(.*)/s) {
- &Apache::lonxml::debug('Got a winner with leftovers ::'.$2);
- &Apache::lonxml::debug('Result is :'.$1);
- $result=$1;
- my $redo=$tag.$2;
- &Apache::lonxml::newparser($pars,\$redo);
- last;
- }
- }
- return $result
+ my($tag,$pars)= @_;
+ my $token;
+ my $result='';
+ $tag='<'.$tag.'>';
+ while ($token = $$pars[-1]->get_token) {
+ if (($token->[0] eq 'T')||($token->[0] eq 'C')||($token->[0] eq 'D')) {
+ $result.=$token->[1];
+ } elsif ($token->[0] eq 'PI') {
+ $result.=$token->[2];
+ } elsif ($token->[0] eq 'S') {
+ $result.=$token->[4];
+ } elsif ($token->[0] eq 'E') {
+ $result.=$token->[2];
+ }
+ if ($result =~ /\Q$tag\E/is) {
+ ($result,my $redo)=$result =~ /(.*)\Q$tag\E(.*)/is;
+ #&Apache::lonxml::debug('Got a winner with leftovers ::'.$2);
+ #&Apache::lonxml::debug('Result is :'.$1);
+ $redo=$tag.$redo;
+ &Apache::lonxml::newparser($pars,\$redo);
+ last;
+ }
+ }
+ return $result
}
sub increment_counter {
@@ -893,12 +984,12 @@ sub get_all_text {
} elsif ($token->[0] eq 'PI') {
$result.=$token->[2];
} elsif ($token->[0] eq 'S') {
- if ($token->[1] =~ /^$tag$/i) { $depth++; }
- if ($token->[1] =~ /^LONCAPA_INTERNAL_TURN_STYLE_ON$/i) { $Apache::lonxml::usestyle=1; }
- if ($token->[1] =~ /^LONCAPA_INTERNAL_TURN_STYLE_OFF$/i) { $Apache::lonxml::usestyle=0; }
+ if ($token->[1] =~ /^\Q$tag\E$/i) { $depth++; }
+ if ($token->[1] =~ /^LONCAPA_INTERNAL_TURN_STYLE_ON$/) { $Apache::lonxml::usestyle=1; }
+ if ($token->[1] =~ /^LONCAPA_INTERNAL_TURN_STYLE_OFF$/) { $Apache::lonxml::usestyle=0; }
$result.=$token->[4];
} elsif ($token->[0] eq 'E') {
- if ( $token->[1] =~ /^$tag$/i) { $depth--; }
+ if ( $token->[1] =~ /^\Q$tag\E$/i) { $depth--; }
#skip sending back the last end tag
if ($depth == 0 && exists($$style{'/'.$token->[1]}) && $Apache::lonxml::usestyle) {
my $string=
@@ -927,7 +1018,7 @@ sub get_all_text {
#never found the end tag ran out of text, throw error send back blank
&error('Never found end tag for <'.$tag.
'> current string <pre>'.
- &HTML::Entities::encode($result).
+ &HTML::Entities::encode($result,'<>&"').
'</pre>');
if ($gotfullstack) {
my $newstring='</'.$tag.'>'.$result;
@@ -945,13 +1036,13 @@ sub get_all_text {
} elsif ($token->[0] eq 'PI') {
$result.=$token->[2];
} elsif ($token->[0] eq 'S') {
- if ( $token->[1] =~ /^$tag$/i) {
+ if ( $token->[1] =~ /^\Q$tag\E$/i) {
$$pars[-1]->unget_token($token); last;
} else {
$result.=$token->[4];
}
- if ($token->[1] =~ /^LONCAPA_INTERNAL_TURN_STYLE_ON$/i) { $Apache::lonxml::usestyle=1; }
- if ($token->[1] =~ /^LONCAPA_INTERNAL_TURN_STYLE_OFF$/i) { $Apache::lonxml::usestyle=0; }
+ if ($token->[1] =~ /^LONCAPA_INTERNAL_TURN_STYLE_ON$/) { $Apache::lonxml::usestyle=1; }
+ if ($token->[1] =~ /^LONCAPA_INTERNAL_TURN_STYLE_OFF$/) { $Apache::lonxml::usestyle=0; }
} elsif ($token->[0] eq 'E') {
$result.=$token->[2];
}
@@ -969,7 +1060,8 @@ sub get_all_text {
sub newparser {
my ($parser,$contentref,$dir) = @_;
push (@$parser,HTML::LCParser->new($contentref));
- $$parser['-1']->xml_mode('1');
+ $$parser[-1]->xml_mode(1);
+ $$parser[-1]->marked_sections(1);
if ( $dir eq '' ) {
push (@Apache::lonxml::pwd, $Apache::lonxml::pwd[$#Apache::lonxml::pwd]);
} else {
@@ -984,6 +1076,8 @@ sub parstring {
unless ($_=~/\W/) {
my $val=$token->[2]->{$_};
$val =~ s/([\%\@\\\"\'])/\\$1/g;
+ $val =~ s/(\$[^{a-zA-Z_])/\\$1/g;
+ $val =~ s/(\$)$/\\$1/;
#if ($val =~ m/^[\%\@]/) { $val="\\".$val; }
$temp .= "my \$$_=\"$val\";";
}
@@ -1033,7 +1127,7 @@ sub afterburn {
my $anchorname=$_;
my $matchthis=$anchorname;
$matchthis=~s/\_+/\\s\+/g;
- $result=~s/($matchthis)/\<font color=\"red\"\>$1\<\/font\>/gs;
+ $result=~s/(\Q$matchthis\E)/\<font color=\"red\"\>$1\<\/font\>/gs;
}
}
if ($ENV{'form.link'}) {
@@ -1041,14 +1135,14 @@ sub afterburn {
my ($anchorname,$linkurl)=split(/\>/,$_);
my $matchthis=$anchorname;
$matchthis=~s/\_+/\\s\+/g;
- $result=~s/($matchthis)/\<a href=\"$linkurl\"\>$1\<\/a\>/gs;
+ $result=~s/(\Q$matchthis\E)/\<a href=\"$linkurl\"\>$1\<\/a\>/gs;
}
}
if ($ENV{'form.anchor'}) {
my $anchorname=$ENV{'form.anchor'};
my $matchthis=$anchorname;
$matchthis=~s/\_+/\\s\+/g;
- $result=~s/($matchthis)/\<a name=\"$anchorname\"\>$1\<\/a\>/s;
+ $result=~s/(\Q$matchthis\E)/\<a name=\"$anchorname\"\>$1\<\/a\>/s;
$result.=(<<"ENDSCRIPT");
<script type="text/javascript">
document.location.hash='$anchorname';
@@ -1072,21 +1166,20 @@ sub storefile {
}
sub createnewhtml {
- my $filecontents=(<<SIMPLECONTENT);
+ my $title=&mt('Title of document goes here');
+ my $body=&mt('Body of document goes here');
+ my $filecontents=(<<SIMPLECONTENT);
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml/11/DTD/xhtml11.dtd">
<html>
<head>
-<title>
- Title of Document Goes Here
-</title>
+<title>$title</title>
</head>
<body bgcolor="#FFFFFF">
-
- Body of Document Goes Here
-
+$body
</body>
</html>
SIMPLECONTENT
- return $filecontents;
+ return $filecontents;
}
sub createnewsty {
@@ -1104,11 +1197,40 @@ SIMPLECONTENT
sub inserteditinfo {
my ($result,$filecontents,$filetype)=@_;
- $filecontents = &HTML::Entities::encode($filecontents);
+ $filecontents = &HTML::Entities::encode($filecontents,'<>&"');
# my $editheader='<a href="#editsection">Edit below</a><hr />';
my $xml_help = '';
+ my $initialize='';
if ($filetype eq 'html') {
- $xml_help=Apache::loncommon::helpLatexCheatsheet();
+ my $addbuttons=&Apache::lonhtmlcommon::htmlareaaddbuttons();
+ $initialize=&Apache::lonhtmlcommon::htmlareaheaders().
+ &Apache::lonhtmlcommon::spellheader();
+ if (!&Apache::lonhtmlcommon::htmlareablocked() &&
+ &Apache::lonhtmlcommon::htmlareabrowser()) {
+ $initialize.=(<<FULLPAGE);
+<script type="text/javascript">
+$addbuttons
+
+ HTMLArea.loadPlugin("FullPage");
+
+ function initDocument() {
+ var editor=new HTMLArea("filecont",config);
+ editor.registerPlugin(FullPage);
+ editor.generate();
+ }
+</script>
+FULLPAGE
+ } else {
+ $initialize.=(<<FULLPAGE);
+<script type="text/javascript">
+$addbuttons
+ function initDocument() {
+ }
+</script>
+FULLPAGE
+ }
+ $result=~s/\<body([^\>]*)\>/\<body onload="initDocument()" $1\>/i;
+ $xml_help=&Apache::loncommon::helpLatexCheatsheet();
}
my $cleanbut = '';
if ($filetype eq 'html') {
@@ -1121,21 +1243,25 @@ sub inserteditinfo {
'ed' => 'Edit');
my $buttons=(<<BUTTONS);
$cleanbut
-<input type="submit" name="savethisfile" value="$lt{'st'}" />
-<input type="submit" name="viewmode" value="$lt{'vi'}" />
+<input type="submit" name="savethisfile" accesskey="s" value="$lt{'st'}" />
+<input type="submit" name="viewmode" accesskey="v" value="$lt{'vi'}" />
BUTTONS
+ $buttons.=&Apache::lonhtmlcommon::spelllink('xmledit','filecont');
+ $buttons.=&Apache::lonhtmlcommon::htmlareaselectactive('filecont');
my $editfooter=(<<ENDFOOTER);
+$initialize
<hr />
<a name="editsection" />
-<form method="post">
+<form method="post" name="xmledit">
$xml_help
<input type="hidden" name="editmode" value="$lt{'ed'}" />
$buttons<br />
-<textarea cols="80" rows="40" name="filecont">$filecontents</textarea>
+<textarea style="width:100%" cols="80" rows="44" name="filecont" id="filecont">$filecontents</textarea>
<br />$buttons
<br />
</form>
$titledisplay
+</body>
ENDFOOTER
# $result=~s/(\<body[^\>]*\>)/$1$editheader/is;
$result=~s/(\<\/body\>)/$editfooter/is;
@@ -1176,12 +1302,12 @@ sub handler {
$Apache::lonxml::debug=$ENV{'user.debug'};
- if ($ENV{'browser.mathml'}) {
- &Apache::loncommon::content_type($request,'text/xml');
- } else {
- &Apache::loncommon::content_type($request,'text/html');
- }
+ &Apache::loncommon::content_type($request,'text/html');
&Apache::loncommon::no_cache($request);
+ if ($ENV{'request.state'} eq 'published') {
+ $request->set_last_modified(&Apache::lonnet::metadata($request->uri,
+ 'lastrevisiondate'));
+ }
$request->send_http_header;
return OK if $request->header_only;
@@ -1200,8 +1326,10 @@ sub handler {
unless ($ENV{'request.state'} eq 'published') {
if (($ENV{'form.savethisfile'}) || ($ENV{'form.attemptclean'})) {
if (&storefile($file,$ENV{'form.filecont'})) {
- $request->print("<font COLOR=\"#0000FF\">".&mt('Updated').": ".
-&Apache::lonlocal::locallocaltime(time)." </font>");
+ &Apache::lonxml::info("<font COLOR=\"#0000FF\">".
+ &mt('Updated').": ".
+ &Apache::lonlocal::locallocaltime(time).
+ " </font>");
}
}
}
@@ -1221,7 +1349,7 @@ $bodytag
</body>
</html>
ENDNOTFOUND
- $filecontents='';
+ $filecontents='';
if ($ENV{'request.state'} ne 'published') {
if ($filetype eq 'sty') {
$filecontents=&createnewsty();
@@ -1232,6 +1360,10 @@ ENDNOTFOUND
}
} else {
unless ($ENV{'request.state'} eq 'published') {
+ if ($filecontents=~/BEGIN LON-CAPA Internal/) {
+ &Apache::lonxml::error(&mt('This file appears to be a rendering of a Lon-CAPA resource. If this is correct, this resource will act very oddly and incorrectly.'));
+ }
+
if ($ENV{'form.attemptclean'}) {
$filecontents=&htmlclean($filecontents,1);
}
@@ -1243,6 +1375,7 @@ ENDNOTFOUND
if (!$ENV{'form.editmode'} || $ENV{'form.viewmode'}) {
$result = &Apache::lonxml::xmlparse($request,$target,$filecontents,
'',%mystyle);
+ undef($Apache::lonhomework::parsing_a_task);
}
}
@@ -1253,7 +1386,13 @@ ENDNOTFOUND
if ($ENV{'form.editmode'} && (!($ENV{'form.viewmode'}))) {
my $displayfile=$request->uri;
$displayfile=~s/^\/[^\/]*//;
- $result='<html><body bgcolor="#FFFFFF"><h3>'.$displayfile.
+ my $bodytag='<body bgcolor="#FFFFFF">';
+ if ($ENV{'environment.remote'} eq 'off') {
+ $bodytag=&Apache::loncommon::bodytag();
+ }
+ $result='<html>'.$bodytag.
+ &Apache::lonxml::message_location().'<h3>'.
+ $displayfile.
'</h3></body></html>';
$result=&inserteditinfo($result,$filecontents,$filetype);
}
@@ -1261,7 +1400,7 @@ ENDNOTFOUND
if ($filetype eq 'html') { writeallows($request->uri); }
-
+ &Apache::lonxml::add_messages(\$result);
$request->print($result);
return OK;
@@ -1281,46 +1420,102 @@ sub display_title {
}
sub debug {
- if ($Apache::lonxml::debug eq 1) {
- $|=1;
- print('<font size="-2"<pre>DEBUG:'.&HTML::Entities::encode($_[0])."</pre></font>\n");
- }
+ if ($Apache::lonxml::debug eq "1") {
+ $|=1;
+ my $request=$Apache::lonxml::request;
+ if (!$request) { $request=Apache->request; }
+ $request->print('<font size="-2"><pre>DEBUG:'.&HTML::Entities::encode($_[0],'<>&"')."</pre></font>\n");
+ #&Apache::lonnet::logthis($_[0]);
+ }
+}
+
+sub show_error_warn_msg {
+ if ($ENV{'request.filename'} eq '/home/httpd/html/res/lib/templates/simpleproblem.problem' &&
+ &Apache::lonnet::allowed('mdc',$ENV{'request.course.id'})) {
+ return 1;
+ }
+ return (($Apache::lonxml::debug eq 1) ||
+ ($ENV{'request.state'} eq 'construct') ||
+ ($Apache::lonhomework::browse eq 'F'
+ &&
+ $ENV{'form.show_errors'} eq 'on'));
}
sub error {
- $errorcount++;
- if (($Apache::lonxml::debug eq 1) || ($ENV{'request.state'} eq 'construct') ) {
- # If printing in construction space, put the error inside <pre></pre>
- print "<b>ERROR:</b>".join("\n",@_)."\n";
- } else {
- print "<b>An Error occured while processing this resource. The instructor has been notified.</b> <br />";
- #notify author
- &Apache::lonmsg::author_res_msg($ENV{'request.filename'},join('<br />',@_));
- #notify course
- if ( $ENV{'request.course.id'} ) {
- my (undef,%users)=&Apache::lonfeedback::decide_receiver(undef,0,1,1,1);
- my $declutter=&Apache::lonnet::declutter($ENV{'request.filename'});
- foreach (keys %users) {
- my ($user,$domain) = split(/:/, $_);
- &Apache::lonmsg::user_normal_msg($user,$domain,
- "Error [$declutter]",join('<br />',@_));
- }
+ $errorcount++;
+ if ( &show_error_warn_msg() ) {
+ # If printing in construction space, put the error inside <pre></pre>
+ push(@Apache::lonxml::error_messages,
+ $Apache::lonxml::warnings_error_header.
+ "<b>ERROR:</b>".join("<br />\n",@_)."<br />\n");
+ $Apache::lonxml::warnings_error_header='';
+ } else {
+ my $errormsg;
+ my ($symb)=&Apache::lonnet::symbread();
+ if ( !$symb ) {
+ #public or browsers
+ $errormsg=&mt("An error occured while processing this resource. The author has been notified.");
+ }
+ #notify author
+ &Apache::lonmsg::author_res_msg($ENV{'request.filename'},join('<br />',@_));
+ #notify course
+ if ( $symb && $ENV{'request.course.id'} ) {
+ my (undef,%users)=&Apache::lonfeedback::decide_receiver(undef,0,1,1,1);
+ my $declutter=&Apache::lonnet::declutter($ENV{'request.filename'});
+ my @userlist;
+ foreach (keys %users) {
+ my ($user,$domain) = split(/:/, $_);
+ push(@userlist,"$user\@$domain");
+ &Apache::lonmsg::user_normal_msg($user,$domain,
+ "Error [$declutter]",join('<br />',@_));
+ }
+ if ($ENV{'request.role.adv'}) {
+ $errormsg=&mt("An error occured while processing this resource. The course personnel ([_1]) and the author have been notified.",join(', ',@userlist));
+ } else {
+ $errormsg=&mt("An error occured while processing this resource. The instructor has been notified.");
+ }
+ }
+ push(@Apache::lonxml::error_messages,"<b>$errormsg</b> <br />");
}
-
- #FIXME probably shouldn't have me get everything forever.
- &Apache::lonmsg::user_normal_msg('albertel','msu',"Error in $ENV{'request.filename'}",join('<br />',@_));
- #&Apache::lonmsg::user_normal_msg('albertel','103',"Error in $ENV{'request.filename'}",$_[0]);
- }
}
sub warning {
- $warningcount++;
+ $warningcount++;
- if ($ENV{'form.grade_target'} ne 'tex') {
- if ($ENV{'request.state'} eq 'construct' || $Apache::lonxml::debug) {
- print "<b>W</b>ARNING<b>:</b>".join('<br />',@_)."<br />\n";
- }
- }
+ if ($ENV{'form.grade_target'} ne 'tex') {
+ if ( &show_error_warn_msg() ) {
+ my $request=$Apache::lonxml::request;
+ if (!$request) { $request=Apache->request; }
+ push(@Apache::lonxml::warning_messages,
+ $Apache::lonxml::warnings_error_header.
+ "<b>W</b>ARNING<b>:</b>".join('<br />',@_)."<br />\n");
+ $Apache::lonxml::warnings_error_header='';
+ }
+ }
+}
+
+sub info {
+ if ($ENV{'form.grade_target'} ne 'tex'
+ && $ENV{'request.state'} eq 'construct') {
+ push(@Apache::lonxml::info_messages,join('<br />',@_)."<br />\n");
+ }
+}
+
+sub message_location {
+ return '__LONCAPA_INTERNAL_MESSAGE_LOCATION__';
+}
+
+sub add_messages {
+ my ($msg)=@_;
+ my $result=join(' ',
+ @Apache::lonxml::info_messages,
+ @Apache::lonxml::error_messages,
+ @Apache::lonxml::warning_messages);
+ undef(@Apache::lonxml::info_messages);
+ undef(@Apache::lonxml::error_messages);
+ undef(@Apache::lonxml::warning_messages);
+ $$msg=~s/__LONCAPA_INTERNAL_MESSAGE_LOCATION__/$result/;
+ $$msg=~s/__LONCAPA_INTERNAL_MESSAGE_LOCATION__//g;
}
sub get_param {
@@ -1328,6 +1523,9 @@ sub get_param {
if ( ! $context ) { $context = -1; }
my $args ='';
if ( $#$parstack > (-2-$context) ) { $args=$$parstack[$context]; }
+ if ( ! $Apache::lonxml::usestyle ) {
+ $args=$Apache::lonxml::style_values.$args;
+ }
if ( ! $args ) { return undef; }
if ( $case_insensitive ) {
if ($args =~ s/(my \$)(\Q$param\E)(=\")/$1.lc($2).$3/ei) {
@@ -1351,6 +1549,9 @@ sub get_param_var {
if ( ! $context ) { $context = -1; }
my $args ='';
if ( $#$parstack > (-2-$context) ) { $args=$$parstack[$context]; }
+ if ( ! $Apache::lonxml::usestyle ) {
+ $args=$Apache::lonxml::style_values.$args;
+ }
&Apache::lonxml::debug("Args are $args param is $param");
if ($case_insensitive) {
if (! ($args=~s/(my \$)(\Q$param\E)(=\")/$1.lc($2).$3/ei)) {
@@ -1359,7 +1560,7 @@ sub get_param_var {
} elsif ( $args !~ /my \$\Q$param\E=\"/ ) { return undef; }
my $value=&Apache::run::run("{$args;".'return $'.$param.'}',$safeeval); #'
&Apache::lonxml::debug("first run is $value");
- if ($value =~ /^[\$\@\%]\w+$/) {
+ if ($value =~ /^[\$\@\%][a-zA-Z_]\w*$/) {
&Apache::lonxml::debug("doing second");
my @result=&Apache::run::run("return $value",$safeeval,1);
if (!defined($result[0])) {
@@ -1447,29 +1648,36 @@ sub whichuser {
my ($passedsymb)=@_;
my ($symb,$courseid,$domain,$name,$publicuser);
if (defined($ENV{'form.grade_symb'})) {
- my $tmp_courseid=$ENV{'form.grade_courseid'};
- my $allowed=&Apache::lonnet::allowed('vgr',$tmp_courseid);
- if ($allowed) {
- $symb=$ENV{'form.grade_symb'};
- $courseid=$ENV{'form.grade_courseid'};
- $domain=$ENV{'form.grade_domain'};
- $name=$ENV{'form.grade_username'};
- }
- } else {
- if (!$passedsymb) {
- $symb=&Apache::lonnet::symbread();
- } else {
- $symb=$passedsymb;
+ my ($tmp_courseid)=
+ &Apache::loncommon::get_env_multiple('form.grade_courseid');
+ my $allowed=&Apache::lonnet::allowed('vgr',$tmp_courseid);
+ if (!$allowed &&
+ exists($ENV{'request.course.sec'}) &&
+ $ENV{'request.course.sec'} !~ /^\s*$/) {
+ $allowed=&Apache::lonnet::allowed('vgr',$tmp_courseid.
+ '/'.$ENV{'request.course.sec'});
}
- $courseid=$ENV{'request.course.id'};
- $domain=$ENV{'user.domain'};
- $name=$ENV{'user.name'};
- if ($name eq 'public' && $domain eq 'public') {
- if (!defined($ENV{'form.username'})) {
- $ENV{'form.username'}.=time.rand(10000000);
- }
- $name.=$ENV{'form.username'};
+ if ($allowed) {
+ ($symb)=&Apache::loncommon::get_env_multiple('form.grade_symb');
+ $courseid=$tmp_courseid;
+ ($domain)=&Apache::loncommon::get_env_multiple('form.grade_domain');
+ ($name)=&Apache::loncommon::get_env_multiple('form.grade_username');
+ return ($symb,$courseid,$domain,$name,$publicuser);
+ }
+ }
+ if (!$passedsymb) {
+ $symb=&Apache::lonnet::symbread();
+ } else {
+ $symb=$passedsymb;
+ }
+ $courseid=$ENV{'request.course.id'};
+ $domain=$ENV{'user.domain'};
+ $name=$ENV{'user.name'};
+ if ($name eq 'public' && $domain eq 'public') {
+ if (!defined($ENV{'form.username'})) {
+ $ENV{'form.username'}.=time.rand(10000000);
}
+ $name.=$ENV{'form.username'};
}
return ($symb,$courseid,$domain,$name,$publicuser);
}