--- loncom/xml/lonxml.pm 2002/12/13 21:39:19 1.221 +++ loncom/xml/lonxml.pm 2003/05/29 18:41:04 1.259 @@ -1,7 +1,7 @@ # The LearningOnline Network with CAPA # XML Parser Module # -# $Id: lonxml.pm,v 1.221 2002/12/13 21:39:19 albertel Exp $ +# $Id: lonxml.pm,v 1.259 2003/05/29 18:41:04 albertel Exp $ # # Copyright Michigan State University Board of Trustees # @@ -41,7 +41,6 @@ # 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 @@ -192,10 +191,18 @@ sub xmlend { 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.''; @@ -226,8 +233,10 @@ sub xmlend { } else { $sender.=' Hide'; - } - } + } + $sender.=' Delete'; + } } else { if ($screenname) { $sender=''.$screenname.''; @@ -246,7 +255,7 @@ sub xmlend { } if ($discussiononly) { $discussion.=(< +

@@ -255,6 +264,9 @@ sub xmlend { Note: in anonymous discussion, your name is visible only to course faculty
+

+Attachment (128 KB max size): +

ENDDISCUSS $discussion.=&Apache::lonfeedback::generate_preview_button(); @@ -268,7 +280,7 @@ sub tokeninputfield { my $defhost=$Apache::lonnet::perlvar{'lonHostID'}; $defhost=~tr/a-z/A-Z/; return (< +\n"; - } - if ((($ENV{'request.publicaccess'}) || - (!&Apache::lonnet::is_on_map($ENV{'REQUEST_URI'}))) && - (!$forcereg)) { - return $result. - ''; - } - if ($Apache::lonxml::registered && !$forcereg) { return ''; } - $Apache::lonxml::registered=1; - my $nothing=''; - if ($ENV{'browser.type'} eq 'explorer') { $nothing='javascript:void(0);'; } - my $newmail=''; - if (&Apache::lonmsg::newmail()) { - $newmail='menu.setstatus("you have","messages");'; - } - my $timesync='menu.syncclock(1000*'.time.');'; - if (($ENV{'REQUEST_URI'}!~/^\/(res\/)*adm\//) || ($forcereg)) { - my $hwkadd=''; - if ($ENV{'request.filename'}=~/\.(problem|exam|quiz|assess|survey|form)$/) { - if (&Apache::lonnet::allowed('vgr',$ENV{'request.course.id'})) { - $hwkadd.=(< -// BEGIN LON-CAPA Internal - - function LONCAPAreg() { - menu=window.open("$nothing","LONCAPAmenu","",false); - menu.clearTimeout(menu.menucltim); - $timesync - $newmail - menu.currentURL=window.location.pathname; - menu.reloadURL=window.location.pathname; - menu.currentSymb="$ENV{'request.symb'}"; - menu.reloadSymb="$ENV{'request.symb'}"; - 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)','Provide my evaluation of this resource'); - menu.switchbutton - (8,2,'fdbk.gif','feedback','discuss','gopost("/adm/feedback",currentURL)','Provide feedback messages or contribute to the course discussion about this resource'); - menu.switchbutton - (8,3,'prt.gif','prepare','printout','gopost("/adm/printout",currentURL)','Prepare a printable document'); - menu.switchbutton - (2,1,'back.gif','backward','','gopost("/adm/flip","back:"+currentURL)','Go to the previous resource in the course sequence'); - menu.switchbutton - (2,3,'forw.gif','forward','','gopost("/adm/flip","forward:"+currentURL)','Go to the next resource in the course sequence'); - menu.switchbutton - (9,1,'sbkm.gif','set','bookmark','set_bookmark()','Set a bookmark for this resource'); - menu.switchbutton - (9,2,'vbkm.gif','view','bookmark','edit_bookmarks()','Use or edit my bookmark collection'); - menu.switchbutton - (9,3,'anot.gif','anno-','tations','annotate()','Make notes and annotations about this resource'); - $hwkadd - $editbutton - } - - function LONCAPAstale() { - menu=window.open("$nothing","LONCAPAmenu","",false); - menu.currentStale=1; - if (menu.reloadURL!='' && menu.reloadURL!= null) { - menu.switchbutton - (3,1,'reload.gif','return','location','go(reloadURL)','Return to the last known location in the course sequence'); - } - 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);clearbut(6,1)', - 2000); - - } - -// END LON-CAPA Internal - -ENDREGTHIS - - } else { - $result = (< -// BEGIN LON-CAPA Internal - - function LONCAPAreg() { - menu=window.open("$nothing","LONCAPAmenu","",false); - $timesync - 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 - } - return $result; -} - -sub loadevents() { - return 'LONCAPAreg();'; -} - -sub unloadevents() { - return 'LONCAPAstale();'; -} - sub printalltags { my $temp; foreach $temp (sort keys %Apache::lonxml::alltags) { @@ -602,6 +401,10 @@ sub xmlparse { my ($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? # @@ -618,8 +421,7 @@ sub xmlparse { } } } - - #&printalltags(); +#&printalltags(); my @pars = (); my $pwd=$ENV{'request.filename'}; $pwd =~ s:/[^/]*$::; @@ -638,6 +440,7 @@ sub xmlparse { my $finaloutput = &inner_xmlparse($target,\@stack,\@parstack,\@pars, $safeeval,\%style_for_target); + if ($ENV{'request.uri'}) { &writeallows($ENV{'request.uri'}); } @@ -667,18 +470,22 @@ sub htmlclean { } sub latex_special_symbols { - my ($current_token,$stack,$parstack)=@_; - $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/>/\$>\$/g; #more - $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; } @@ -687,13 +494,15 @@ sub inner_xmlparse { my $finaloutput = ''; my $result; my $token; + my $dontpop=0; while ( $#$pars > -1 ) { while ($token = $$pars['-1']->get_token) { if (($token->[0] eq 'T') || ($token->[0] eq 'C') || ($token->[0] eq 'D') ) { if ($metamode<1) { my $text=$token->[1]; if ($token->[0] eq 'C' && $target eq 'tex') { - $text = '%'.$text."\n"; + $text = ''; +# $text = '%'.$text."\n"; } $result.=$text; } @@ -713,48 +522,57 @@ sub inner_xmlparse { my $string=$$style_for_target{$token->[1]}. ''; &Apache::lonxml::newparser($pars,\$string); + $Apache::lonxml::style_values=$$parstack[-1]; + $Apache::lonxml::style_end_values=$$parstack[-1]; } 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 $$stack['-1'] && ($#$stack > -1)) { - my $lasttag=$$stack[-1]; - if ($token->[1] =~ /^$lasttag$/i) { - &Apache::lonxml::warning('Using tag </'.$token->[1].'> as end tag to <'.$$stack[-1].'>'); - last; - } else { - &Apache::lonxml::warning('Found tag </'.$token->[1].'> when looking for </'.$$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); + $Apache::lonxml::style_values=$Apache::lonxml::style_end_values; + $Apache::lonxml::style_end_values=''; + $dontpop=1; } else { - $result = &callsub("end_$token->[1]", $target, $token, $stack, - $parstack, $pars,$safeeval, $style_for_target); + #clear out any tags that didn't end + while ($token->[1] ne $$stack['-1'] && ($#$stack > -1)) { + my $lasttag=$$stack[-1]; + if ($token->[1] =~ /^$lasttag$/i) { + &Apache::lonxml::warning('Using tag </'.$token->[1].'> on line '.$token->[3].' as end tag to <'.$$stack[-1].'>'); + last; + } else { + &Apache::lonxml::warning('Found tag </'.$token->[1].'> on line '.$token->[3].' when looking for </'.$$stack[-1].'> in file'); + &end_tag($stack,$parstack,$token); + } + } + $result = &callsub("end_$token->[1]", $target, $token, $stack, + $parstack, $pars,$safeeval, $style_for_target); } } else { &Apache::lonxml::error("Unknown token event :$token->[0]:$token->[1]:"); } #evaluate variable refs in result if ($result ne "") { + my $extras; + if (!$Apache::lonxml::usestyle) { + $extras=$Apache::lonxml::style_values; + } if ( $#$parstack > -1 ) { - $result=&Apache::run::evaluate($result,$safeeval,$$parstack[-1]); + $result=&Apache::run::evaluate($result,$safeeval,$extras.$$parstack[-1]); } else { - $result= &Apache::run::evaluate($result,$safeeval,''); + $result= &Apache::run::evaluate($result,$safeeval,$extras); } } if (($token->[0] eq 'T') || ($token->[0] eq 'C') || ($token->[0] eq 'D') ) { - if ($target eq 'tex') { - $result=&latex_special_symbols($result,$stack,$parstack); - } + #Style file definitions should be correct + if ($target eq 'tex' && ($Apache::lonxml::usestyle)) { + $result=&latex_special_symbols($result,$stack,$parstack); + } } # Encode any high ASCII characters @@ -768,10 +586,11 @@ sub inner_xmlparse { } $result = ''; - if ($token->[0] eq 'E') { + if ($token->[0] eq 'E' && !$dontpop) { &end_tag($stack,$parstack,$token); } - } + $dontpop=0; + } if ($#$pars > -1) { pop @$pars; pop @Apache::lonxml::pwd; @@ -797,6 +616,8 @@ sub callsub { my $sub1; no strict 'refs'; my $tag=$token->[1]; +# 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/; @@ -911,6 +732,7 @@ sub init_safespace { $safeeval->permit("sort"); $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'); $safehole->wrap(\&Math::Cephes::asin,$safeeval,'&asin'); @@ -992,6 +814,7 @@ sub init_safespace { my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser(); $rndseed=&Apache::lonnet::rndseed($symb,$courseid,$domain,$name); $safeinit .= ';$external::randomseed='.$rndseed.';'; + &Apache::lonxml::debug("Setting rndseed to $rndseed"); &Apache::run::run($safeinit,$safeeval); } @@ -999,7 +822,7 @@ sub default_homework_load { my ($safeeval)=@_; &Apache::lonxml::debug('Loading default_homework'); my $default=&Apache::lonnet::getfile('/home/httpd/html/res/adm/includes/default_homework.lcpm'); - if ($default == -1) { + if ($default eq -1) { &Apache::lonxml::error("Unable to find default_homework.lcpm"); } else { &Apache::run::run($default,$safeeval); @@ -1091,18 +914,23 @@ sub get_all_text_unbalanced { } sub increment_counter { - $Apache::lonxml::counter++; + my ($increment) = @_; + if (defined($increment) && $increment gt 0) { + $Apache::lonxml::counter+=$increment; + } else { + $Apache::lonxml::counter++; + } $Apache::lonxml::counter_changed=1; } sub init_counter { if (defined($ENV{'form.counter'})) { $Apache::lonxml::counter=$ENV{'form.counter'}; - } elsif (not defined($Apache::lonxml::counter)) { + $Apache::lonxml::counter_changed=0; + } else { $Apache::lonxml::counter=1; - &store_counter(); + $Apache::lonxml::counter_changed=1; } - $Apache::lonxml::counter_changed=0; } sub store_counter { @@ -1113,7 +941,9 @@ sub store_counter { sub get_all_text { my($tag,$pars)= @_; &Apache::lonxml::debug("Got a ".ref($pars)); + my $gotfullstack=1; if (ref($pars) ne 'ARRAY') { + $gotfullstack=0; $pars=[$pars]; } my $depth=0; @@ -1122,7 +952,8 @@ sub get_all_text { if ( $tag =~ m:^/: ) { my $tag=substr($tag,1); #&Apache::lonxml::debug("have:$tag:"); - while (($depth >=0) && ($#$pars > -1)) { + my $top_empty=0; + while (($depth >=0) && ($#$pars > -1) && (!$top_empty)) { while (($depth >=0) && ($token = $$pars[-1]->get_token)) { #&Apache::lonxml::debug("e token:$token->[0]:$depth:$token->[1]:".$#$pars.":".$#Apache::lonxml::pwd); if (($token->[0] eq 'T')||($token->[0] eq 'C')||($token->[0] eq 'D')) { @@ -1140,11 +971,21 @@ sub get_all_text { } } } + if (($depth >=0) && ($#$pars == 0) ) { $top_empty=1; } if (($depth >=0) && ($#$pars > 0) ) { pop(@$pars); pop(@Apache::lonxml::pwd); } } + if ($top_empty && $depth >= 0) { + #never found the end tag ran out of text, throw error send back blank + &error('Never found end tag for <'.$tag.'>'); + if ($gotfullstack) { + my $newstring=''.$result; + &Apache::lonxml::newparser($pars,\$newstring); + } + $result=''; + } } else { while ($#$pars > -1) { while ($token = $$pars[-1]->get_token) { @@ -1186,8 +1027,6 @@ sub newparser { } else { push (@Apache::lonxml::pwd, $dir); } -# &Apache::lonxml::debug("pwd:$#Apache::lonxml::pwd"); -# &Apache::lonxml::debug("pwd:$Apache::lonxml::pwd[$#Apache::lonxml::pwd]"); } sub parstring { @@ -1196,7 +1035,7 @@ sub parstring { 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\";" } @@ -1250,7 +1089,7 @@ sub afterburn { $matchthis=~s/\_+/\\s\+/g; $result=~s/($matchthis)/\$1\<\/a\>/s; $result.=(<<"ENDSCRIPT"); - ENDSCRIPT @@ -1291,6 +1130,14 @@ sub inserteditinfo { my ($result,$filecontents)=@_; $filecontents = &HTML::Entities::encode($filecontents); # my $editheader='Edit below
'; + my $xml_help = '
'. + &Apache::loncommon::help_open_topic("Greek_Symbols",'Greek Symbols', + undef,undef,600) + .''. + &Apache::loncommon::help_open_topic("Other_Symbols",'Other Symbols', + undef,undef,600) + .'
'; + my $titledisplay=&display_title(); my $buttons=(< @@ -1301,12 +1148,14 @@ BUTTONS
+$xml_help $buttons

$buttons
+$titledisplay ENDFOOTER # $result=~s/(\]*\>)/$1$editheader/is; $result=~s/(\<\/body\>)/$editfooter/is; @@ -1341,37 +1190,37 @@ sub get_target { } sub handler { - my $request=shift; - - my $target=&get_target(); - - $Apache::lonxml::debug=0; - - if ($ENV{'browser.mathml'}) { - $request->content_type('text/xml'); - } else { - $request->content_type('text/html'); - } - &Apache::loncommon::no_cache($request); - $request->send_http_header; - - return OK if $request->header_only; + my $request=shift; + + my $target=&get_target(); + + $Apache::lonxml::debug=$ENV{'user.debug'}; + + if ($ENV{'browser.mathml'}) { + $request->content_type('text/xml'); + } else { + $request->content_type('text/html'); + } + &Apache::loncommon::no_cache($request); + $request->send_http_header; + + return OK if $request->header_only; - my $file=&Apache::lonnet::filelocation("",$request->uri); + my $file=&Apache::lonnet::filelocation("",$request->uri); # # Edit action? Save file. # - unless ($ENV{'request.state'} eq 'published') { - if (($ENV{'form.savethisfile'}) || ($ENV{'form.attemptclean'})) { - &storefile($file,$ENV{'form.filecont'}); - } - } - my %mystyle; - my $result = ''; - my $filecontents=&Apache::lonnet::getfile($file); - if ($filecontents == -1) { - $result=(< File not found @@ -1382,40 +1231,54 @@ sub handler { 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); - } - } - if (!$ENV{'form.editmode'} || $ENV{'form.viewmode'}) { - $result = &Apache::lonxml::xmlparse($request,$target,$filecontents, - '',%mystyle); + 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); + } + } + 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='

'.$displayfile. - '

'; - $result=&inserteditinfo($result,$filecontents); + unless ($ENV{'request.state'} eq 'published') { + if ($ENV{'form.editmode'} && (!($ENV{'form.viewmode'}))) { + my $displayfile=$request->uri; + $displayfile=~s/^\/[^\/]*//; + $result='

'.$displayfile. + '

'; + $result=&inserteditinfo($result,$filecontents); + } } - } - - writeallows($request->uri); + + writeallows($request->uri); + - $request->print($result); + $request->print($result); + + return OK; +} - return OK; +sub display_title { + my $result; + if ($ENV{'request.state'} eq 'construct') { + my $title=&Apache::lonnet::gettitle(); + if (!defined($title) || $title eq '') { + $title = $ENV{'request.filename'}; + $title = substr($title, rindex($title, '/') + 1); + } + $result = ""; + } + return $result; } sub debug { @@ -1453,7 +1316,7 @@ sub error { sub warning { $warningcount++; - if ($ENV{'request.state'} eq 'construct') { + if ($ENV{'request.state'} eq 'construct' || $Apache::lonxml::debug) { print "WARNING:".join('
',@_)."
\n"; } } @@ -1486,14 +1349,22 @@ sub get_param_var { if ( ! $context ) { $context = -1; } my $args =''; if ( $#$parstack > (-2-$context) ) { $args=$$parstack[$context]; } + &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.'}',$safeeval); #' - if ($value =~ /^[\$\@\%]/) { - return &Apache::run::run("return $value",$safeeval,1); + &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 $value; } @@ -1555,7 +1426,7 @@ sub description { # calls to lonnet functions for this setup. # - looks for form.grade_ parameters sub whichuser { - my ($symb,$courseid,$domain,$name); + my ($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); @@ -1566,12 +1437,18 @@ sub whichuser { $name=$ENV{'form.grade_username'}; } } else { - $symb=&Apache::lonnet::symbread(); - $courseid=$ENV{'request.course.id'}; - $domain=$ENV{'user.domain'}; - $name=$ENV{'user.name'}; + $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); + return ($symb,$courseid,$domain,$name,$publicuser); } 1; 500 Internal Server Error

Internal Server Error

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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.