--- loncom/xml/lonxml.pm 2001/08/15 14:22:07 1.113 +++ loncom/xml/lonxml.pm 2003/04/03 22:25:49 1.245 @@ -1,56 +1,115 @@ # The LearningOnline Network with CAPA # XML Parser Module # +# $Id: lonxml.pm,v 1.245 2003/04/03 22:25:49 albertel Exp $ +# +# Copyright Michigan State University Board of Trustees +# +# This file is part of the LearningOnline Network with CAPA (LON-CAPA). +# +# LON-CAPA is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of the License, or +# (at your option) any later version. +# +# LON-CAPA is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with LON-CAPA; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA +# +# /home/httpd/html/adm/gpl.txt +# +# http://www.lon-capa.org/ +# +# Copyright for TtHfunc and TtMfunc by Ian Hutchinson. +# TtHfunc and TtMfunc (the "Code") may be compiled and linked into +# binary executable programs or libraries distributed by the +# Michigan State University (the "Licensee"), but any binaries so +# distributed are hereby licensed only for use in the context +# of a program or computational system for which the Licensee is the +# primary author or distributor, and which performs substantial +# additional tasks beyond the translation of (La)TeX into HTML. +# 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 -# 5/10 Scott Harrison # 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 Gerd Kortemeyer +# 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); +qw(@pwd @outputstack $redirection $import @extlinks $metamode $evaluate %insertlist @namespace $prevent_entity_encode $errorcount $warningcount); use strict; -use HTML::TokeParser; -use HTML::TreeBuilder; -use Safe; -use Safe::Hole; -use Math::Cephes qw(:trigs :hypers :bessels erf erfc); -use Math::Random qw(:all); -use Opcode; +use HTML::LCParser(); +use HTML::TreeBuilder(); +use HTML::Entities(); +use Safe(); +use Safe::Hole(); +use Math::Cephes(); +use Math::Random(); +use Opcode(); sub register { - my $space; - my @taglist; - my $temptag; - ($space,@taglist) = @_; - foreach $temptag (@taglist) { - $Apache::lonxml::alltags{$temptag}=$space; + my ($space,@taglist) = @_; + foreach my $temptag (@taglist) { + push(@{ $Apache::lonxml::alltags{$temptag} },$space); + } +} + +sub deregister { + my ($space,@taglist) = @_; + foreach my $temptag (@taglist) { + my $tempspace = $Apache::lonxml::alltags{$temptag}[-1]; + if ($tempspace eq $space) { + pop(@{ $Apache::lonxml::alltags{$temptag} }); + } } + #&printalltags(); } use Apache::Constants qw(:common); -use Apache::lontexconvert; -use Apache::style; -use Apache::run; -use Apache::londefdef; -use Apache::scripttag; -use Apache::edit; -use Apache::lonnet; -use Apache::File; +use Apache::lontexconvert(); +use Apache::style(); +use Apache::run(); +use Apache::londefdef(); +use Apache::scripttag(); +use Apache::edit(); +use Apache::lonnet(); +use Apache::File(); +use Apache::loncommon(); +use Apache::lonfeedback(); +use Apache::lonmsg(); +use Apache::loncacc(); #================================================== Main subroutine: xmlparse #debugging control, to turn on debugging modify the correct handler $Apache::lonxml::debug=0; +# keeps count of the number of warnings and errors generated in a parse +$warningcount=0; +$errorcount=0; + #path to the directory containing the file currently being processed @pwd=(); @@ -76,9 +135,22 @@ $evaluate = 1; # stores the list of active tag namespaces @namespace=(); +# if 0 all high ASCII characters will be encoded into HTML Entities +$prevent_entity_encode=0; + # has the dynamic menu been updated to know about this resource $Apache::lonxml::registered=0; +# a pointer the the Apache request object +$Apache::lonxml::request=''; + +# a problem number counter, and check on ether it is used +$Apache::lonxml::counter=1; +$Apache::lonxml::counter_changed=0; + +#internal check on whether to look at style defs +$Apache::lonxml::usestyle=1; + sub xmlbegin { my $output=''; if ($ENV{'browser.mathml'}) { @@ -95,6 +167,7 @@ sub xmlbegin { } sub xmlend { + my ($discussiononly,$symb)=@_; my $discussion=''; if ($ENV{'request.course.id'}) { my $crs='/'.$ENV{'request.course.id'}; @@ -103,30 +176,55 @@ sub xmlend { } $crs=~s/\_/\//g; my $seeid=&Apache::lonnet::allowed('rin',$crs); - my $symb=&Apache::lonnet::symbread(); + unless ($symb) { + $symb=&Apache::lonnet::symbread(); + } if ($symb) { my %contrib=&Apache::lonnet::restore($symb,$ENV{'request.course.id'}, $ENV{'course.'.$ENV{'request.course.id'}.'.domain'}, $ENV{'course.'.$ENV{'request.course.id'}.'.num'}); if ($contrib{'version'}) { - $discussion.= - '

Course Discussion of Resource

'; + unless ($discussiononly) { + $discussion.= + '
'; + } my $idx; for ($idx=1;$idx<=$contrib{'version'};$idx++) { my $hidden=($contrib{'hidden'}=~/\.$idx\./); - unless (($hidden) && (!$seeid)) { + my $deleted=($contrib{'deleted'}=~/\.$idx\./); + unless ((($hidden) && (!$seeid)) || ($deleted)) { my $message=$contrib{$idx.':message'}; $message=~s/\n/\
/g; + $message=&Apache::lontexconvert::msgtexconverted($message); + if ($contrib{$idx.':attachmenturl'}) { + my ($fname,$ft) + =($contrib{$idx.':attachmenturl'}=~/\/(\w+)\.(\w+)$/); + $message.='

Attachment: '.$fname.'.'.$ft.''; + } if ($message) { if ($hidden) { $message=''.$message.''; } + my $screenname=&Apache::loncommon::screenname( + $contrib{$idx.':sendername'}, + $contrib{$idx.':senderdomain'}); + my $plainname=&Apache::loncommon::nickname( + $contrib{$idx.':sendername'}, + $contrib{$idx.':senderdomain'}); + my $sender='Anonymous'; if ((!$contrib{$idx.':anonymous'}) || ($seeid)) { - $sender=$contrib{$idx.':sendername'}.' at '. - $contrib{$idx.':senderdomain'}; + $sender=&Apache::loncommon::aboutmewrapper( + $plainname, + $contrib{$idx.':sendername'}, + $contrib{$idx.':senderdomain'}).' ('. + $contrib{$idx.':sendername'}.' at '. + $contrib{$idx.':senderdomain'}.')'; if ($contrib{$idx.':anonymous'}) { - $sender.=' (anonymous)'; + $sender.=' [anonymous] '. + $screenname; } if ($seeid) { if ($hidden) { @@ -135,8 +233,14 @@ sub xmlend { } else { $sender.=' Hide'; - } - } + } + $sender.=' Delete'; + } + } else { + if ($screenname) { + $sender=''.$screenname.''; + } } $discussion.='

'.$sender.' ('. localtime($contrib{$idx.':timestamp'}). @@ -145,15 +249,84 @@ sub xmlend { } } } - $discussion.='

'; + unless ($discussiononly) { + $discussion.='
'; + } + } + if ($discussiononly) { + $discussion.=(< + + + + +
+Note: in anonymous discussion, your name is visible only to +course faculty
+ +

+Attachment (128 KB max size): +

+ +ENDDISCUSS + $discussion.=&Apache::lonfeedback::generate_preview_button(); } } } - return $discussion.''; + return $discussion.($discussiononly?'':''); +} + +sub tokeninputfield { + my $defhost=$Apache::lonnet::perlvar{'lonHostID'}; + $defhost=~tr/a-z/A-Z/; + return (< + function updatetoken() { + var comp=new Array; + var barcode=unescape(document.tokeninput.barcode.value); + comp=barcode.split('*'); + if (typeof(comp[0])!="undefined") { + document.tokeninput.codeone.value=comp[0]; + } + if (typeof(comp[1])!="undefined") { + document.tokeninput.codetwo.value=comp[1]; + } + if (typeof(comp[2])!="undefined") { + comp[2]=comp[2].toUpperCase(); + document.tokeninput.codethree.value=comp[2]; + } + document.tokeninput.barcode.value=''; + } + +
+ + + + +
DocID Checkin
+ + + + + + + +
Scan in Barcode
or Type in DocID + +* + +* + +
+
+
+ENDINPUTFIELD } -sub checkout { - my ($target,$symb,$tuname,$tudom,$tcrsid)=@_; +sub maketoken { + my ($symb,$tuname,$tudom,$tcrsid)=@_; unless ($symb) { $symb=&Apache::lonnet::symbread(); } @@ -162,27 +335,45 @@ sub checkout { $tudom=$ENV{'user.domain'}; $tcrsid=$ENV{'request.course.id'}; } - my $lonhost = $Apache::lonnet::perlvar{'lonHostID'}; - my $infostr=&Apache::lonnet::escape( - $tuname.'&'. - $tudom.'&'. - $tcrsid.'&'. - $symb.'&'. - time.'&'.$ENV{'REMOTE_ADDR'}); - my $token=Apache::lonnet::reply('tmpput:'.$infostr,$lonhost); - if ($token=~/^error\:/) { return ''; } - $token=~s/^(\d+)\_.*\_(\d+)$/$1\*$2\*$lonhost/; - $token=~tr/a-z/A-Z/; - if (&Apache::lonnet::log($tudom,$tuname, - &Apache::lonnet::homeserver($tuname,$tudom), - &Apache::lonnet::escape('Checkout '.$infostr.' - '. - $token)) ne 'ok') { - return ''; + + return &Apache::lonnet::checkout($symb,$tuname,$tudom,$tcrsid); +} + +sub printtokenheader { + my ($target,$token,$tsymb,$tcrsid,$tudom,$tuname)=@_; + unless ($token) { return ''; } + + my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser(); + unless ($tsymb) { + $tsymb=$symb; + } + unless ($tuname) { + $tuname=$name; + $tudom=$domain; + $tcrsid=$courseid; } + + my %reply=&Apache::lonnet::get('environment', + ['firstname','middlename','lastname','generation'], + $tudom,$tuname); + my $plainname=$reply{'firstname'}.' '. + $reply{'middlename'}.' '. + $reply{'lastname'}.' '. + $reply{'generation'}; + if ($target eq 'web') { - return ''; + my %idhash=&Apache::lonnet::idrget($tudom,($tuname)); + return + ''. + 'Checked out for '.$plainname. + '
User: '.$tuname.' at '.$tudom. + '
ID: '.$idhash{$tuname}. + '
CourseID: '.$tcrsid. + '
Course: '.$ENV{'course.'.$tcrsid.'.description'}. + '
DocID: '.$token. + '
Time: '.localtime().'
'; } else { - return $token; + return $token; } } @@ -195,137 +386,39 @@ sub fontsettings() { return $headerstring; } -sub registerurl { - my $forcereg=shift; - if ($Apache::lonxml::registered) { return ''; } - $Apache::lonxml::registered=1; - if (($ENV{'REQUEST_URI'}!~/^\/(res\/)*adm\//) || ($forcereg)) { - my $hwkadd=''; - if ($ENV{'REQUEST_URI'}=~/\.(problem|exam|quiz|assess|survey|form)$/) { - if (&Apache::lonnet::allowed('vgr',$ENV{'request.course.id'})) { - $hwkadd.=(< -// BEGIN LON-CAPA Internal - - function LONCAPAreg() { - menu=window.open("","LONCAPAmenu"); - menu.clearTimeout(menu.menucltim); - menu.currentURL=window.location.pathname; - menu.currentStale=0; - menu.clearbut(3,1); - menu.switchbutton - (6,3,'catalog.gif','catalog','info','catalog_info()'); - menu.switchbutton - (8,1,'eval.gif','evaluate','this','gopost("/adm/evaluate",currentURL)'); - menu.switchbutton - (8,2,'fdbk.gif','feedback','on this','gopost("/adm/feedback",currentURL)'); - menu.switchbutton - (8,3,'prt.gif','prepare','printout','gopost("/adm/printout",currentURL)'); - menu.switchbutton - (2,1,'back.gif','backward','','gopost("/adm/flip","back:"+currentURL)'); - menu.switchbutton - (2,3,'forw.gif','forward','','gopost("/adm/flip","forward:"+currentURL)'); - menu.switchbutton - (9,1,'sbkm.gif','set','bookmark','set_bookmark()'); - menu.switchbutton - (9,2,'vbkm.gif','view','bookmark','edit_bookmarks()'); - menu.switchbutton - (9,3,'anot.gif','anno-','tations','annotate()'); - $hwkadd - } - - function LONCAPAstale() { - menu=window.open("","LONCAPAmenu"); - menu.currentStale=1; - menu.switchbutton - (3,1,'reload.gif','return','location','go(currentURL)'); - menu.clearbut(7,1); - menu.clearbut(7,2); - menu.clearbut(7,3); - menu.menucltim=menu.setTimeout( - '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(6,3)', - 2000); - - } - -// END LON-CAPA Internal - -ENDREGTHIS - - } else { - return (< -// BEGIN LON-CAPA Internal - - function LONCAPAreg() { - menu=window.open("","LONCAPAmenu"); - menu.currentStale=1; - menu.clearbut(2,1); - menu.clearbut(2,3); - menu.clearbut(8,1); - menu.clearbut(8,2); - menu.clearbut(8,3); - if (menu.currentURL) { - menu.switchbutton - (3,1,'reload.gif','return','location','go(currentURL)'); - } else { - menu.clearbut(3,1); - } - } - - function LONCAPAstale() { - } - -// END LON-CAPA Internal - -ENDDONOTREGTHIS - - } -} - -sub loadevents() { - return 'LONCAPAreg();'; -} - -sub unloadevents() { - return 'LONCAPAstale();'; -} - sub printalltags { my $temp; foreach $temp (sort keys %Apache::lonxml::alltags) { - &Apache::lonxml::debug("$temp -- $Apache::lonxml::alltags{$temp}"); + &Apache::lonxml::debug("$temp -- ". + join(',',@{ $Apache::lonxml::alltags{$temp} })); } } sub xmlparse { - my ($target,$content_file_string,$safeinit,%style_for_target) = @_; + my ($request,$target,$content_file_string,$safeinit,%style_for_target) = @_; + + &setup_globals($request,$target); + &Apache::inputtags::initialize_inputtags(); + &Apache::outputtags::initialize_outputtags(); + &Apache::edit::initialize_edit(); + +# +# do we have a course style file? +# + + if ($ENV{'request.course.id'} && $ENV{'request.state'} ne 'construct') { + 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); + if ($styletext ne '-1') { + %style_for_target = (%style_for_target, + &Apache::style::styleparser($target,$styletext)); + } + } + } - &setup_globals($target); #&printalltags(); my @pars = (); my $pwd=$ENV{'request.filename'}; @@ -339,13 +432,16 @@ sub xmlparse { ($target, my @tenta) = split('&&',$target); - my @stack = (); + my @stack = (); my @parstack = (); &initdepth; my $finaloutput = &inner_xmlparse($target,\@stack,\@parstack,\@pars, $safeeval,\%style_for_target); - + if ($ENV{'request.uri'}) { + &writeallows($ENV{'request.uri'}); + } + if ($Apache::lonxml::counter_changed) { &store_counter() } return $finaloutput; } @@ -354,12 +450,12 @@ sub htmlclean { 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)(.*?)\>/\<$1$2 \/\>/gis; $output=~s/\<\/(br|hr|img|meta|allow)\>//gis; unless ($full) { $output=~s/\<[\/]*(body|head|html)\>//gis; @@ -370,9 +466,28 @@ sub htmlclean { return $output; } +sub latex_special_symbols { + my ($current_token,$stack,$parstack,$where)=@_; + if ($where eq 'header') { + $current_token =~ s/(\\|_|\^)/ /g; + $current_token =~ s/(\$|%|\#|&|\{|\})/\\$1/g; + } else { + $current_token=~s/\\ /\\char92 /g; + $current_token=~s/\^/\\char94 /g; + $current_token=~s/\~/\\char126 /g; + $current_token=~s/(&[^a-z\#])/\\$1/g; + $current_token=~s/([^&])\#/$1\\#/g; + $current_token=~s/(\$|_|{|})/\\$1/g; + $current_token=~s/\\char92 /\\texttt{\\char92}/g; + $current_token=~s/(>|<)/\$$1\$/g; #more or less + if ($current_token=~m/\d%/) {$current_token =~ s/(\d)%/$1\\%/g;} #percent after digit + if ($current_token=~m/\s%/) {$current_token =~ s/(\s)%/$1\\%/g;} #persent after space + } + return $current_token; +} + sub inner_xmlparse { my ($target,$stack,$parstack,$pars,$safeeval,$style_for_target)=@_; - &Apache::lonxml::debug('Reentrant parser starting, again?'); my $finaloutput = ''; my $result; my $token; @@ -380,49 +495,52 @@ sub inner_xmlparse { while ($token = $$pars['-1']->get_token) { if (($token->[0] eq 'T') || ($token->[0] eq 'C') || ($token->[0] eq 'D') ) { if ($metamode<1) { - $result=$token->[1]; + my $text=$token->[1]; + if ($token->[0] eq 'C' && $target eq 'tex') { + $text = ''; +# $text = '%'.$text."\n"; + } + $result.=$text; } } elsif ($token->[0] eq 'PI') { if ($metamode<1) { $result=$token->[2]; } } elsif ($token->[0] eq 'S') { - # add tag to stack + # add tag to stack push (@$stack,$token->[1]); # add parameters list to another stack push (@$parstack,&parstring($token)); - &increasedepth($token); - if (exists $$style_for_target{$token->[1]}) { - if ($Apache::lonxml::redirection) { - $Apache::lonxml::outputstack['-1'] .= - &recurse($$style_for_target{$token->[1]},$target,$safeeval, - $style_for_target,@$parstack); - } else { - $finaloutput .= &recurse($$style_for_target{$token->[1]},$target, - $safeeval,$style_for_target,@$parstack); - } + &increasedepth($token); + if ($Apache::lonxml::usestyle && + exists($$style_for_target{$token->[1]})) { + $Apache::lonxml::usestyle=0; + my $string=$$style_for_target{$token->[1]}. + ''; + &Apache::lonxml::newparser($pars,\$string); } else { $result = &callsub("start_$token->[1]", $target, $token, $stack, $parstack, $pars, $safeeval, $style_for_target); - } + } } elsif ($token->[0] eq 'E') { #clear out any tags that didn't end while ($token->[1] ne $$stack['-1'] && ($#$stack > -1)) { - &Apache::lonxml::warning("Unbalanced tags in resource $$stack['-1']"); - &end_tag($stack,$parstack,$token); - } - - if (exists $$style_for_target{'/'."$token->[1]"}) { - if ($Apache::lonxml::redirection) { - $Apache::lonxml::outputstack['-1'] .= - &recurse($$style_for_target{'/'."$token->[1]"}, - $target,$safeeval,$style_for_target,@$parstack); + my $lasttag=$$stack[-1]; + if ($token->[1] =~ /^$lasttag$/i) { + &Apache::lonxml::warning('Using tag </'.$token->[1].'> on line '.$token->[3].' as end tag to <'.$$stack[-1].'>'); + last; } else { - $finaloutput .= &recurse($$style_for_target{'/'."$token->[1]"}, - $target,$safeeval,$style_for_target, - @$parstack); + &Apache::lonxml::warning('Found tag </'.$token->[1].'> on line '.$token->[3].' when looking for </'.$$stack[-1].'> in file'); + &end_tag($stack,$parstack,$token); } - + } + + if ($Apache::lonxml::usestyle && + exists($$style_for_target{'/'."$token->[1]"})) { + $Apache::lonxml::usestyle=0; + my $string=$$style_for_target{'/'.$token->[1]}. + ''; + &Apache::lonxml::newparser($pars,\$string); } else { $result = &callsub("end_$token->[1]", $target, $token, $stack, $parstack, $pars,$safeeval, $style_for_target); @@ -433,100 +551,49 @@ sub inner_xmlparse { #evaluate variable refs in result if ($result ne "") { if ( $#$parstack > -1 ) { - if ($Apache::lonxml::redirection) { - $Apache::lonxml::outputstack['-1'] .= - &Apache::run::evaluate($result,$safeeval,$$parstack['-1']); - } else { - $finaloutput .= &Apache::run::evaluate($result,$safeeval, - $$parstack['-1']); - } + $result=&Apache::run::evaluate($result,$safeeval,$$parstack[-1]); } else { - $finaloutput .= &Apache::run::evaluate($result,$safeeval,''); + $result= &Apache::run::evaluate($result,$safeeval,''); + } + } + if (($token->[0] eq 'T') || ($token->[0] eq 'C') || ($token->[0] eq 'D') ) { + if ($target eq 'tex') { + $result=&latex_special_symbols($result,$stack,$parstack); } - $result = ''; - } + } + + # 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 { + $finaloutput.=$result; + } + $result = ''; + if ($token->[0] eq 'E') { &end_tag($stack,$parstack,$token); } + } + if ($#$pars > -1) { + pop @$pars; + pop @Apache::lonxml::pwd; } - pop @$pars; - pop @Apache::lonxml::pwd; } # if ($target eq 'meta') { # $finaloutput.=&endredirection; # } + if (($ENV{'QUERY_STRING'}) && ($target eq 'web')) { $finaloutput=&afterburn($finaloutput); - } + } return $finaloutput; } -sub recurse { - my @innerstack = (); - my @innerparstack = (); - my ($newarg,$target,$safeeval,$style_for_target,@parstack) = @_; - my @pat = (); - &newparser(\@pat,\$newarg); - my $tokenpat; - my $partstring = ''; - my $output=''; - my $decls=''; - while ( $#pat > -1 ) { - while ($tokenpat = $pat[$#pat]->get_token) { - if (($tokenpat->[0] eq 'T') || ($tokenpat->[0] eq 'C') || ($tokenpat->[0] eq 'D') ) { - if ($metamode<1) { $partstring=$tokenpat->[1]; } - } elsif ($tokenpat->[0] eq 'PI') { - if ($metamode<1) { $partstring=$tokenpat->[2]; } - } elsif ($tokenpat->[0] eq 'S') { - push (@innerstack,$tokenpat->[1]); - push (@innerparstack,&parstring($tokenpat)); - &increasedepth($tokenpat); - $partstring = &callsub("start_$tokenpat->[1]", $target, $tokenpat, - \@innerstack, \@innerparstack, \@pat, - $safeeval, $style_for_target); - } elsif ($tokenpat->[0] eq 'E') { - #clear out any tags that didn't end - while ($tokenpat->[1] ne $innerstack[$#innerstack] - && ($#innerstack > -1)) { - &Apache::lonxml::warning("Unbalanced tags in resource $innerstack['-1']"); - &end_tag(\@innerstack,\@innerparstack,$tokenpat); - } - $partstring = &callsub("end_$tokenpat->[1]", $target, $tokenpat, - \@innerstack, \@innerparstack, \@pat, - $safeeval, $style_for_target); - } else { - &Apache::lonxml::error("Unknown token event :$tokenpat->[0]:$tokenpat->[1]:"); - } - #pass both the variable to the style tag, and the tag we - #are processing inside the - if ( $partstring ne "" ) { - if ( $#parstack > -1 ) { - if ( $#innerparstack > -1 ) { - $decls= $parstack[$#parstack].$innerparstack[$#innerparstack]; - } else { - $decls= $parstack[$#parstack]; - } - } else { - if ( $#innerparstack > -1 ) { - $decls=$innerparstack[$#innerparstack]; - } else { - $decls=''; - } - } - $output .= &Apache::run::evaluate($partstring,$safeeval,$decls); - $partstring = ''; - } - if ($tokenpat->[0] eq 'E') { pop @innerstack;pop @innerparstack; - &decreasedepth($tokenpat);} - } - pop @pat; - pop @Apache::lonxml::pwd; - } - return $output; -} - sub callsub { my ($sub,$target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; my $currentstring=''; @@ -535,11 +602,13 @@ sub callsub { my $sub1; no strict 'refs'; my $tag=$token->[1]; - my $space=$Apache::lonxml::alltags{$tag}; +# get utterly rid of extended html tags + if ($tag=~/^x\-/i) { return ''; } + my $space=$Apache::lonxml::alltags{$tag}[-1]; if (!$space) { - $tag=~tr/A-Z/a-z/; + $tag=~tr/A-Z/a-z/; $sub=~tr/A-Z/a-z/; - $space=$Apache::lonxml::alltags{$tag} + $space=$Apache::lonxml::alltags{$tag}[-1] } my $deleted=0; @@ -551,13 +620,13 @@ sub callsub { } if (!$deleted) { if ($space) { - #&Apache::lonxml::debug("Calling sub $sub in $space $metamode
\n"); + #&Apache::lonxml::debug("Calling sub $sub in $space $metamode"); $sub1="$space\:\:$sub"; ($currentstring,$nodefault) = &$sub1($target,$token,$tagstack, $parstack,$parser,$safeeval, $style); } else { - #&Apache::lonxml::debug("NOT Calling sub $sub in $space $metamode
\n"); + #&Apache::lonxml::debug("NOT Calling sub $sub in $space $metamode"); if ($metamode <1) { if (defined($token->[4]) && ($metamode < 1)) { $currentstring = $token->[4]; @@ -569,7 +638,7 @@ sub callsub { # &Apache::lonxml::debug("nodefalt:$nodefault:"); if ($currentstring eq '' && $nodefault eq '') { if ($target eq 'edit') { - &Apache::lonxml::debug("doing default edit for $token->[1]"); + #&Apache::lonxml::debug("doing default edit for $token->[1]"); if ($token->[0] eq 'S') { $currentstring = &Apache::edit::tag_start($target,$token); } elsif ($token->[0] eq 'E') { @@ -579,6 +648,9 @@ sub callsub { if ($token->[0] eq 'S') { $currentstring = $token->[4]; $currentstring.=&Apache::edit::handle_insert(); + } elsif ($token->[0] eq 'E') { + $currentstring = $token->[2]; + $currentstring.=&Apache::edit::handle_insertafter($token->[1]); } else { $currentstring = $token->[2]; } @@ -591,14 +663,26 @@ sub callsub { } sub setup_globals { - my ($target)=@_; + my ($request,$target)=@_; + $Apache::lonxml::request=$request; $Apache::lonxml::registered = 0; + $errorcount=0; + $warningcount=0; + $Apache::lonxml::default_homework_loaded=0; + $Apache::lonxml::usestyle=1; + &init_counter(); @Apache::lonxml::pwd=(); + @Apache::lonxml::extlinks=(); if ($target eq 'meta') { $Apache::lonxml::redirection = 0; $Apache::lonxml::metamode = 1; $Apache::lonxml::evaluate = 1; $Apache::lonxml::import = 0; + } elsif ($target eq 'answer') { + $Apache::lonxml::redirection = 0; + $Apache::lonxml::metamode = 1; + $Apache::lonxml::evaluate = 1; + $Apache::lonxml::import = 1; } elsif ($target eq 'grade') { &startredirection; $Apache::lonxml::metamode = 0; @@ -614,6 +698,11 @@ sub setup_globals { $Apache::lonxml::metamode = 0; $Apache::lonxml::evaluate = 0; $Apache::lonxml::import = 0; + } elsif ($target eq 'analyze') { + $Apache::lonxml::redirection = 0; + $Apache::lonxml::metamode = 0; + $Apache::lonxml::evaluate = 1; + $Apache::lonxml::import = 1; } else { $Apache::lonxml::redirection = 0; $Apache::lonxml::metamode = 0; @@ -650,6 +739,37 @@ sub init_safespace { $safehole->wrap(\&Math::Cephes::y1,$safeeval,'&y1'); $safehole->wrap(\&Math::Cephes::yn,$safeeval,'&yn'); $safehole->wrap(\&Math::Cephes::yv,$safeeval,'&yv'); + + $safehole->wrap(\&Math::Cephes::bdtr ,$safeeval,'&bdtr' ); + $safehole->wrap(\&Math::Cephes::bdtrc ,$safeeval,'&bdtrc' ); + $safehole->wrap(\&Math::Cephes::bdtri ,$safeeval,'&bdtri' ); + $safehole->wrap(\&Math::Cephes::btdtr ,$safeeval,'&btdtr' ); + $safehole->wrap(\&Math::Cephes::chdtr ,$safeeval,'&chdtr' ); + $safehole->wrap(\&Math::Cephes::chdtrc,$safeeval,'&chdtrc'); + $safehole->wrap(\&Math::Cephes::chdtri,$safeeval,'&chdtri'); + $safehole->wrap(\&Math::Cephes::fdtr ,$safeeval,'&fdtr' ); + $safehole->wrap(\&Math::Cephes::fdtrc ,$safeeval,'&fdtrc' ); + $safehole->wrap(\&Math::Cephes::fdtri ,$safeeval,'&fdtri' ); + $safehole->wrap(\&Math::Cephes::gdtr ,$safeeval,'&gdtr' ); + $safehole->wrap(\&Math::Cephes::gdtrc ,$safeeval,'&gdtrc' ); + $safehole->wrap(\&Math::Cephes::nbdtr ,$safeeval,'&nbdtr' ); + $safehole->wrap(\&Math::Cephes::nbdtrc,$safeeval,'&nbdtrc'); + $safehole->wrap(\&Math::Cephes::nbdtri,$safeeval,'&nbdtri'); + $safehole->wrap(\&Math::Cephes::ndtr ,$safeeval,'&ndtr' ); + $safehole->wrap(\&Math::Cephes::ndtri ,$safeeval,'&ndtri' ); + $safehole->wrap(\&Math::Cephes::pdtr ,$safeeval,'&pdtr' ); + $safehole->wrap(\&Math::Cephes::pdtrc ,$safeeval,'&pdtrc' ); + $safehole->wrap(\&Math::Cephes::pdtri ,$safeeval,'&pdtri' ); + $safehole->wrap(\&Math::Cephes::stdtr ,$safeeval,'&stdtr' ); + $safehole->wrap(\&Math::Cephes::stdtri,$safeeval,'&stdtri'); + +# $safehole->wrap(\&Math::Cephes::new_fract,$safeeval,'&new_fract'); +# $safehole->wrap(\&Math::Cephes::radd,$safeeval,'&radd'); +# $safehole->wrap(\&Math::Cephes::rsub,$safeeval,'&rsub'); +# $safehole->wrap(\&Math::Cephes::rmul,$safeeval,'&rmul'); +# $safehole->wrap(\&Math::Cephes::rdiv,$safeeval,'&rdiv'); +# $safehole->wrap(\&Math::Cephes::euclid,$safeeval,'&euclid'); + $safehole->wrap(\&Math::Random::random_beta,$safeeval,'&math_random_beta'); $safehole->wrap(\&Math::Random::random_chi_square,$safeeval,'&math_random_chi_square'); $safehole->wrap(\&Math::Random::random_exponential,$safeeval,'&math_random_exponential'); @@ -675,10 +795,25 @@ sub init_safespace { #need to inspect this class of ops # $safeeval->deny(":base_orig"); $safeinit .= ';$external::target="'.$target.'";'; - $safeinit .= ';$external::randomseed='.&Apache::lonnet::rndseed().';'; + my $rndseed; + my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser(); + $rndseed=&Apache::lonnet::rndseed($symb,$courseid,$domain,$name); + $safeinit .= ';$external::randomseed='.$rndseed.';'; &Apache::run::run($safeinit,$safeeval); } +sub default_homework_load { + my ($safeeval)=@_; + &Apache::lonxml::debug('Loading default_homework'); + my $default=&Apache::lonnet::getfile('/home/httpd/html/res/adm/includes/default_homework.lcpm'); + if ($default eq -1) { + &Apache::lonxml::error("Unable to find default_homework.lcpm"); + } else { + &Apache::run::run($default,$safeeval); + $Apache::lonxml::default_homework_loaded=1; + } +} + sub startredirection { $Apache::lonxml::redirection++; push (@Apache::lonxml::outputstack, ''); @@ -726,7 +861,7 @@ sub decreasedepth { $Apache::lonxml::olddepth=$Apache::lonxml::depth+1; } if ( $Apache::lonxml::depth < -1) { - &Apache::lonxml::warning("Unbalanced tags in resource"); + &Apache::lonxml::warning("Missing tags, unable to properly run file."); $Apache::lonxml::depth='-1'; } my $curdepth=join('_',@Apache::lonxml::depthcounter); @@ -734,57 +869,137 @@ sub decreasedepth { #print "
e $Apache::lonxml::depth : $Apache::lonxml::olddepth : $token->[1] : $curdepth\n"; } -sub get_all_text { +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 +} + +sub increment_counter { + $Apache::lonxml::counter++; + $Apache::lonxml::counter_changed=1; +} + +sub init_counter { + if (defined($ENV{'form.counter'})) { + $Apache::lonxml::counter=$ENV{'form.counter'}; + } else { + $Apache::lonxml::counter=1; + &store_counter(); + } + $Apache::lonxml::counter_changed=0; +} + +sub store_counter { + &Apache::lonnet::appenv(('form.counter' => $Apache::lonxml::counter)); + return ''; +} +sub get_all_text { my($tag,$pars)= @_; + &Apache::lonxml::debug("Got a ".ref($pars)); + my $gotfullstack=1; + if (ref($pars) ne 'ARRAY') { + $gotfullstack=0; + $pars=[$pars]; + } my $depth=0; my $token; my $result=''; if ( $tag =~ m:^/: ) { my $tag=substr($tag,1); -# &Apache::lonxml::debug("have:$tag:"); - while (($depth >=0) && ($token = $pars->get_token)) { -# &Apache::lonxml::debug("e token:$token->[0]:$depth:$token->[1]"); - 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 ($token->[0] eq 'S') { - if ($token->[1] eq $tag) { $depth++; } - $result.=$token->[4]; - } elsif ($token->[0] eq 'E') { - if ( $token->[1] eq $tag) { $depth--; } - #skip sending back the last end tag - if ($depth > -1) { $result.=$token->[2]; } else { - $pars->unget_token($token); + #&Apache::lonxml::debug("have:$tag:"); + my $top_empty=0; + while (($depth >=0) && ($#$pars > -1) && (!$top_empty)) { + while (($depth >=0) && ($token = $$pars[-1]->get_token)) { + #&Apache::lonxml::debug("e token:$token->[0]:$depth:$token->[1]:".$#$pars.":".$#Apache::lonxml::pwd); + if (($token->[0] eq 'T')||($token->[0] eq 'C')||($token->[0] eq 'D')) { + $result.=$token->[1]; + } elsif ($token->[0] eq 'PI') { + $result.=$token->[2]; + } elsif ($token->[0] eq 'S') { + if ($token->[1] =~ /^$tag$/i) { $depth++; } + $result.=$token->[4]; + } elsif ($token->[0] eq 'E') { + if ( $token->[1] =~ /^$tag$/i) { $depth--; } + #skip sending back the last end tag + if ($depth > -1) { $result.=$token->[2]; } else { + $$pars[-1]->unget_token($token); + } } } + if (($depth >=0) && ($#$pars == 0) ) { $top_empty=1; } + if (($depth >=0) && ($#$pars > 0) ) { + pop(@$pars); + pop(@Apache::lonxml::pwd); + } } - } else { - while ($token = $pars->get_token) { -# &Apache::lonxml::debug("s token:$token->[0]:$depth:$token->[1]"); - 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') { - if ( $token->[1] eq $tag) { - $pars->unget_token($token); last; - } else { - $result.=$token->[4]; + if ($top_empty && $depth >= 0) { + #never found the end tag ran out of text, throw error send back blank + &error('Never found end tag for <'.$tag.'>'); + if ($gotfullstack) { + my $newstring=''.$result; + &Apache::lonxml::newparser($pars,\$newstring); } - } elsif ($token->[0] eq 'E') { - $result.=$token->[2]; - } + $result=''; } + } else { + while ($#$pars > -1) { + while ($token = $$pars[-1]->get_token) { + #&Apache::lonxml::debug("s token:$token->[0]:$depth:$token->[1]"); + if (($token->[0] eq 'T')||($token->[0] eq 'C')|| + ($token->[0] eq 'D')) { + $result.=$token->[1]; + } elsif ($token->[0] eq 'PI') { + $result.=$token->[2]; + } elsif ($token->[0] eq 'S') { + if ( $token->[1] =~ /^$tag$/i) { + $$pars[-1]->unget_token($token); last; + } else { + $result.=$token->[4]; + } + } elsif ($token->[0] eq 'E') { + $result.=$token->[2]; + } + } + if (($#$pars > 0) ) { + pop(@$pars); + pop(@Apache::lonxml::pwd); + } else { last; } + } + } + if ($result =~ m||) { + $Apache::lonxml::usestyle=1; } -# &Apache::lonxml::debug("Exit:$result:"); + #&Apache::lonxml::debug("Exit:$result:"); return $result } sub newparser { my ($parser,$contentref,$dir) = @_; - push (@$parser,HTML::TokeParser->new($contentref)); + push (@$parser,HTML::LCParser->new($contentref)); $$parser['-1']->xml_mode('1'); if ( $dir eq '' ) { push (@Apache::lonxml::pwd, $Apache::lonxml::pwd[$#Apache::lonxml::pwd]); @@ -798,18 +1013,19 @@ sub newparser { sub parstring { my ($token) = @_; my $temp=''; - map { + foreach (@{$token->[3]}) { unless ($_=~/\W/) { my $val=$token->[2]->{$_}; - $val =~ s/([\%\@\\])/\\$1/g; + $val =~ s/([\%\@\\\"\'])/\\$1/g; #if ($val =~ m/^[\%\@]/) { $val="\\".$val; } $temp .= "my \$$_=\"$val\";" } - } @{$token->[3]}; + } return $temp; } sub writeallows { + unless ($#extlinks>=0) { return; } my $thisurl='/res/'.&Apache::lonnet::declutter(shift); if ($ENV{'httpref.'.$thisurl}) { $thisurl=$ENV{'httpref.'.$thisurl}; @@ -817,9 +1033,11 @@ sub writeallows { my $thisdir=$thisurl; $thisdir=~s/\/[^\/]+$//; my %httpref=(); - map { + foreach (@extlinks) { $httpref{'httpref.'. - &Apache::lonnet::hreflocation($thisdir,$_)}=$thisurl; } @extlinks; + &Apache::lonnet::hreflocation($thisdir,$_)}=$thisurl; + } + @extlinks=(); &Apache::lonnet::appenv(%httpref); } @@ -828,31 +1046,23 @@ sub writeallows { # sub afterburn { my $result=shift; - map { - my ($name, $value) = split(/=/,$_); - $value =~ tr/+/ /; - $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg; - if (($name eq 'highlight')||($name eq 'anchor')||($name eq 'link')) { - unless ($ENV{'form.'.$name}) { - $ENV{'form.'.$name}=$value; - } - } - } (split(/&/,$ENV{'QUERY_STRING'})); + &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'}, + ['highlight','anchor','link']); if ($ENV{'form.highlight'}) { - map { + foreach (split(/\,/,$ENV{'form.highlight'})) { my $anchorname=$_; my $matchthis=$anchorname; $matchthis=~s/\_+/\\s\+/g; $result=~s/($matchthis)/\$1\<\/font\>/gs; - } split(/\,/,$ENV{'form.highlight'}); + } } if ($ENV{'form.link'}) { - map { + foreach (split(/\,/,$ENV{'form.link'})) { my ($anchorname,$linkurl)=split(/\>/,$_); my $matchthis=$anchorname; $matchthis=~s/\_+/\\s\+/g; $result=~s/($matchthis)/\$1\<\/a\>/gs; - } split(/\,/,$ENV{'form.link'}); + } } if ($ENV{'form.anchor'}) { my $anchorname=$ENV{'form.anchor'}; @@ -860,7 +1070,7 @@ sub afterburn { $matchthis=~s/\_+/\\s\+/g; $result=~s/($matchthis)/\$1\<\/a\>/s; $result.=(<<"ENDSCRIPT"); - ENDSCRIPT @@ -873,13 +1083,13 @@ sub storefile { if (my $fh=Apache::File->new('>'.$file)) { print $fh $contents; $fh->close(); + } else { + &warning("Unable to save file $file"); } } -sub inserteditinfo { - my ($result,$filecontents)=@_; - unless ($filecontents) { - $filecontents=(< @@ -893,28 +1103,75 @@ sub inserteditinfo { </body> </html> SIMPLECONTENT - } - my $editheader='<a href="#editsection">Edit below</a><hr />'; + return $filecontents; +} + + +sub inserteditinfo { + my ($result,$filecontents)=@_; + $filecontents = &HTML::Entities::encode($filecontents); +# my $editheader='<a href="#editsection">Edit below</a><hr />'; + my $xml_help = '<table><tr><td>'. + &Apache::loncommon::help_open_topic("Greek_Symbols",'Greek Symbols', + undef,undef,600) + .'</td><td>'. + &Apache::loncommon::help_open_topic("Other_Symbols",'Other Symbols', + undef,undef,600) + .'</td></tr></table>'; + my $buttons=(<<BUTTONS); +<input type="submit" name="attemptclean" + value="Save and then attempt to clean HTML" /> +<input type="submit" name="savethisfile" value="Save this" /> +<input type="submit" name="viewmode" value="View" /> +BUTTONS my $editfooter=(<<ENDFOOTER); <hr /> <a name="editsection" /> <form method="post"> +$xml_help +<input type="hidden" name="editmode" value="Edit" /> +$buttons<br /> <textarea cols="80" rows="40" name="filecont">$filecontents</textarea> +<br />$buttons <br /> -<input type="submit" name="attemptclean" - value="Save and then attempt to clean HTML" /> -<input type="submit" name="savethisfile" value="Save this" /> </form> ENDFOOTER - $result=~s/(\<body[^\>]*\>)/$1$editheader/is; +# $result=~s/(\<body[^\>]*\>)/$1$editheader/is; $result=~s/(\<\/body\>)/$editfooter/is; return $result; } +sub get_target { + my $viewgrades=&Apache::lonnet::allowed('vgr',$ENV{'request.course.id'}); + if ( $ENV{'request.state'} eq 'published') { + if ( defined($ENV{'form.grade_target'}) + && ($viewgrades == 'F' )) { + return ($ENV{'form.grade_target'}); + } elsif (defined($ENV{'form.grade_target'})) { + if (($ENV{'form.grade_target'} eq 'web') || + ($ENV{'form.grade_target'} eq 'tex') ) { + return $ENV{'form.grade_target'} + } else { + return 'web'; + } + } else { + return 'web'; + } + } elsif ($ENV{'request.state'} eq 'construct') { + if ( defined($ENV{'form.grade_target'})) { + return ($ENV{'form.grade_target'}); + } else { + return 'web'; + } + } else { + return 'web'; + } +} + sub handler { my $request=shift; - my $target='web'; + my $target=&get_target(); $Apache::lonxml::debug=0; @@ -923,9 +1180,9 @@ sub handler { } else { $request->content_type('text/html'); } - + &Apache::loncommon::no_cache($request); $request->send_http_header; - + return OK if $request->header_only; @@ -939,9 +1196,9 @@ sub handler { } } my %mystyle; - my $result = ''; + my $result = ''; my $filecontents=&Apache::lonnet::getfile($file); - if ($filecontents == -1) { + if ($filecontents eq -1) { $result=(<<ENDNOTFOUND); <html> <head> @@ -953,68 +1210,129 @@ sub handler { </html> ENDNOTFOUND $filecontents=''; + if ($ENV{'request.state'} ne 'published') { + $filecontents=&createnewhtml(); + $ENV{'form.editmode'}='Edit'; #force edit mode + } } else { - unless ($ENV{'request.state'} eq 'published') { - if ($ENV{'form.attemptclean'}) { - $filecontents=&htmlclean($filecontents,1); - } + unless ($ENV{'request.state'} eq 'published') { + if ($ENV{'form.attemptclean'}) { + $filecontents=&htmlclean($filecontents,1); } - $result = &Apache::lonxml::xmlparse($target,$filecontents,'',%mystyle); + } + if (!$ENV{'form.editmode'} || $ENV{'form.viewmode'}) { + $result = &Apache::lonxml::xmlparse($request,$target,$filecontents, + '',%mystyle); + } } # # Edit action? Insert editing commands # unless ($ENV{'request.state'} eq 'published') { + if ($ENV{'form.editmode'} && (!($ENV{'form.viewmode'}))) { + my $displayfile=$request->uri; + $displayfile=~s/^\/[^\/]*//; + $result='<html><body bgcolor="#FFFFFF"><h3>'.$displayfile. + '</h3></body></html>'; $result=&inserteditinfo($result,$filecontents); + } } + writeallows($request->uri); + $request->print($result); - writeallows($request->uri); return OK; } - + sub debug { if ($Apache::lonxml::debug eq 1) { - print("DEBUG:".$_[0]."<br />\n"); + $|=1; + print('<font size="-2"<pre>DEBUG:'.&HTML::Entities::encode($_[0])."</pre></font>\n"); } } sub error { + $errorcount++; if (($Apache::lonxml::debug eq 1) || ($ENV{'request.state'} eq 'construct') ) { - print "<b>ERROR:</b>".$_[0]."<br />\n"; + # 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'},$_[0]); + &Apache::lonmsg::author_res_msg($ENV{'request.filename'},join('<br />',@_)); #notify course if ( $ENV{'request.course.id'} ) { - my $users=$ENV{'course.'.$ENV{'request.course.id'}.'.comment.email'}; - foreach my $user (split /\,/, $users) { - ($user,my $domain) = split /:/, $user; - &Apache::lonmsg::user_normal_msg($user,$domain,"Error in $ENV{'request.filename'}",$_[0]); + 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 />',@_)); } } #FIXME probably shouldn't have me get everything forever. - &Apache::lonmsg::user_normal_msg('albertel','msu',"Error in $ENV{'request.filename'}",$_[0]); + &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++; if ($ENV{'request.state'} eq 'construct') { - print "<b>W</b>ARNING<b>:</b>".$_[0]."<br />\n"; + print "<b>W</b>ARNING<b>:</b>".join('<br />',@_)."<br />\n"; } } sub get_param { - my ($param,$parstack,$safeeval,$context) = @_; + my ($param,$parstack,$safeeval,$context,$case_insensitive) = @_; + if ( ! $context ) { $context = -1; } + my $args =''; + if ( $#$parstack > (-2-$context) ) { $args=$$parstack[$context]; } + if ( ! $args ) { return undef; } + if ( $case_insensitive ) { + if ($args =~ s/(my \$)(\Q$param\E)(=\")/$1.lc($2).$3/ei) { + return &Apache::run::run("{$args;".'return $'.$param.'}', + $safeeval); #' + } else { + return undef; + } + } else { + if ( $args =~ /my \$\Q$param\E=\"/ ) { + return &Apache::run::run("{$args;".'return $'.$param.'}', + $safeeval); #' + } else { + return undef; + } + } +} + +sub get_param_var { + my ($param,$parstack,$safeeval,$context,$case_insensitive) = @_; if ( ! $context ) { $context = -1; } my $args =''; if ( $#$parstack > (-2-$context) ) { $args=$$parstack[$context]; } - return &Apache::run::run("{$args;".'return $'.$param.'}',$safeeval); #' + &Apache::lonxml::debug("Args are $args param is $param"); + if ($case_insensitive) { + if (! ($args=~s/(my \$)(\Q$param\E)(=\")/$1.lc($2).$3/ei)) { + return undef; + } + } 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+$/) { + &Apache::lonxml::debug("doing second"); + my @result=&Apache::run::run("return $value",$safeeval,1); + if (!defined($result[0])) { + return $value + } else { + if (wantarray) { return @result; } else { return $result[0]; } + } + } else { + return $value; + } } sub register_insert { @@ -1027,13 +1345,16 @@ sub register_insert { if ( $line =~ /^\#/ || $line =~ /^\s*\n/) { next; } if ( $line =~ /TABLE/ ) { last; } my ($tag,$descrip,$color,$function,$show) = split(/,/, $line); - $insertlist{"$tagnum.tag"} = $tag; - $insertlist{"$tagnum.description"} = $descrip; - $insertlist{"$tagnum.color"} = $color; - $insertlist{"$tagnum.function"} = $function; - $insertlist{"$tagnum.show"}= $show; - $insertlist{"$tag.num"}=$tagnum; - $tagnum++; + if ($tag) { + $insertlist{"$tagnum.tag"} = $tag; + $insertlist{"$tagnum.description"} = $descrip; + $insertlist{"$tagnum.color"} = $color; + $insertlist{"$tagnum.function"} = $function; + if (!defined($show)) { $show='yes'; } + $insertlist{"$tagnum.show"}= $show; + $insertlist{"$tag.num"}=$tagnum; + $tagnum++; + } } $i++; #skipping TABLE line $tagnum = 0; @@ -1041,7 +1362,7 @@ sub register_insert { my $line = $data[$i]; my ($mnemonic,@which) = split(/ +/,$line); my $tag = $insertlist{"$tagnum.tag"}; - for (my $j=0;$j <$#which;$j++) { + for (my $j=0;$j <=$#which;$j++) { if ( $which[$j] eq 'Y' ) { if ($insertlist{"$j.show"} ne 'no') { push(@{ $insertlist{"$tag.which"} },$j); @@ -1054,8 +1375,47 @@ sub register_insert { sub description { my ($token)=@_; - return $insertlist{$insertlist{"$token->[1].num"}.'.description'}; + my $tagnum; + my $tag=$token->[1]; + foreach my $namespace (reverse @Apache::lonxml::namespace) { + my $testtag=$namespace.'::'.$tag; + $tagnum=$insertlist{"$testtag.num"}; + if (defined($tagnum)) { last; } + } + if (!defined ($tagnum)) { $tagnum=$Apache::lonxml::insertlist{"$tag.num"}; } + return $insertlist{$tagnum.'.description'}; +} + +# ----------------------------------------------------------------- whichuser +# returns a list of $symb, $courseid, $domain, $name that is correct for +# calls to lonnet functions for this setup. +# - looks for form.grade_ parameters +sub whichuser { + my ($symb,$courseid,$domain,$name,$publicuser); + if (defined($ENV{'form.grade_symb'})) { + my $tmp_courseid=$ENV{'form.grade_courseid'}; + my $allowed=&Apache::lonnet::allowed('mgr',$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 { + $symb=&Apache::lonnet::symbread(); + $courseid=$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); } + 1; __END__ <!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN"> <html><head> <title>500 Internal Server Error

Internal Server Error

The server encountered an internal error or misconfiguration and was unable to complete your request.

Please contact the server administrator at root@localhost to inform them of the time this error occurred, and the actions you performed just before this error.

More information about this error may be available in the server error log.