--- loncom/xml/lonxml.pm 2005/01/30 23:31:12 1.355
+++ loncom/xml/lonxml.pm 2007/01/08 18:44:01 1.436
@@ -1,7 +1,7 @@
# The LearningOnline Network with CAPA
# XML Parser Module
#
-# $Id: lonxml.pm,v 1.355 2005/01/30 23:31:12 www Exp $
+# $Id: lonxml.pm,v 1.436 2007/01/08 18:44:01 albertel Exp $
#
# Copyright Michigan State University Board of Trustees
#
@@ -40,7 +40,7 @@
package Apache::lonxml;
use vars
-qw(@pwd @outputstack $redirection $import @extlinks $metamode $evaluate %insertlist @namespace $errorcount $warningcount @htmlareafields);
+qw(@pwd @outputstack $redirection $import @extlinks $metamode $evaluate %insertlist @namespace $errorcount $warningcount);
use strict;
use HTML::LCParser();
use HTML::TreeBuilder();
@@ -52,6 +52,7 @@ use Math::Random();
use Opcode();
use POSIX qw(strftime);
use Time::HiRes qw( gettimeofday tv_interval );
+use Symbol();
sub register {
my ($space,@taglist) = @_;
@@ -81,12 +82,13 @@ use Apache::languagetags();
use Apache::edit();
use Apache::inputtags();
use Apache::outputtags();
-use Apache::lonnet();
+use Apache::lonnet;
use Apache::File();
use Apache::loncommon();
use Apache::lonfeedback();
use Apache::lonmsg();
use Apache::loncacc();
+use Apache::lonmaxima();
use Apache::lonlocal;
#================================================== Main subroutine: xmlparse
@@ -122,9 +124,6 @@ $evaluate = 1;
# stores the list of active tag namespaces
@namespace=();
-# has the dynamic menu been updated to know about this resource
-$Apache::lonxml::registered=0;
-
# a pointer the the Apache request object
$Apache::lonxml::request='';
@@ -148,39 +147,42 @@ $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 $output='';
- @htmlareafields=();
- if ($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">]>'
- .'<html xmlns:math="http://www.w3.org/1998/Math/MathML" '
- .'xmlns="http://www.w3.org/TR/REC-html40">';
- } else {
- $output='<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
-<html>';
- }
- return $output;
+# Control whether or not LaTeX symbols should be substituted for their
+# \ style equivalents...this may be turned off e.g. in an verbatim
+# environment.
+
+$Apache::lonxml::substitute_LaTeX_symbols = 1; # Starts out on.
+
+sub enable_LaTeX_substitutions {
+ $Apache::lonxml::substitute_LaTeX_symbols = 1;
+}
+sub disable_LaTeX_substitutions {
+ $Apache::lonxml::substitute_LaTeX_symbols = 0;
}
sub xmlend {
my ($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];
}
- my $discussion=&Apache::lonfeedback::list_discussion($mode,$status);
+ 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.'</html>';
}
+
+ return $discussion;
}
sub tokeninputfield {
@@ -238,9 +240,9 @@ sub maketoken {
$symb=&Apache::lonnet::symbread();
}
unless ($tuname) {
- $tuname=$ENV{'user.name'};
- $tudom=$ENV{'user.domain'};
- $tcrsid=$ENV{'request.course.id'};
+ $tuname=$env{'user.name'};
+ $tudom=$env{'user.domain'};
+ $tcrsid=$env{'request.course.id'};
}
return &Apache::lonnet::checkout($symb,$tuname,$tudom,$tcrsid);
@@ -250,7 +252,7 @@ sub printtokenheader {
my ($target,$token,$tsymb,$tcrsid,$tudom,$tuname)=@_;
unless ($token) { return ''; }
- my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
+ my ($symb,$courseid,$domain,$name) = &Apache::lonnet::whichuser();
unless ($tsymb) {
$tsymb=$symb;
}
@@ -260,13 +262,7 @@ sub printtokenheader {
$tcrsid=$courseid;
}
- my %reply=&Apache::lonnet::get('environment',
- ['firstname','middlename','lastname','generation'],
- $tudom,$tuname);
- my $plainname=$reply{'firstname'}.' '.
- $reply{'middlename'}.' '.
- $reply{'lastname'}.' '.
- $reply{'generation'};
+ my $plainname=&Apache::loncommon::plainname($tuname,$tudom);
if ($target eq 'web') {
my %idhash=&Apache::lonnet::idrget($tudom,($tuname));
@@ -276,7 +272,7 @@ sub printtokenheader {
'<br />'.&mt('User').': '.$tuname.' at '.$tudom.
'<br />'.&mt('ID').': '.$idhash{$tuname}.
'<br />'.&mt('CourseID').': '.$tcrsid.
- '<br />'.&mt('Course').': '.$ENV{'course.'.$tcrsid.'.description'}.
+ '<br />'.&mt('Course').': '.$env{'course.'.$tcrsid.'.description'}.
'<br />'.&mt('DocID').': '.$token.
'<br />'.&mt('Time').': '.&Apache::lonlocal::locallocaltime().'<hr />';
} else {
@@ -284,18 +280,6 @@ sub printtokenheader {
}
}
-sub fontsettings() {
- my $headerstring='';
- if (($ENV{'browser.os'} eq 'mac') && (!$ENV{'browser.mathml'})) {
- $headerstring.=
- '<meta Content-Type="text/html; charset=x-mac-roman" />';
- } elsif (!$ENV{'browser.mathml'} && $ENV{'browser.unicode'}) {
- $headerstring.=
- '<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />';
- }
- return $headerstring;
-}
-
sub printalltags {
my $temp;
foreach $temp (sort keys %Apache::lonxml::alltags) {
@@ -309,6 +293,7 @@ sub xmlparse {
&setup_globals($request,$target);
&Apache::inputtags::initialize_inputtags();
+ &Apache::bridgetask::initialize_bridgetask();
&Apache::outputtags::initialize_outputtags();
&Apache::edit::initialize_edit();
&Apache::londefdef::initialize_londefdef();
@@ -317,9 +302,9 @@ sub xmlparse {
# do we have a course style file?
#
- if ($ENV{'request.course.id'} && $ENV{'request.state'} ne 'construct') {
+ if ($env{'request.course.id'} && $env{'request.state'} ne 'construct') {
my $bodytext=
- $ENV{'course.'.$ENV{'request.course.id'}.'.default_xml_style'};
+ $env{'course.'.$env{'request.course.id'}.'.default_xml_style'};
if ($bodytext) {
foreach my $file (split(',',$bodytext)) {
my $location=&Apache::lonnet::filelocation('',$file);
@@ -330,8 +315,8 @@ sub xmlparse {
}
}
}
- } elsif ($ENV{'construct.style'} && ($ENV{'request.state'} eq 'construct')) {
- my $location=&Apache::lonnet::filelocation('',$ENV{'construct.style'});
+ } 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,
@@ -340,7 +325,7 @@ sub xmlparse {
}
#&printalltags();
my @pars = ();
- my $pwd=$ENV{'request.filename'};
+ my $pwd=$env{'request.filename'};
$pwd =~ s:/[^/]*$::;
&newparser(\@pars,\$content_file_string,$pwd);
@@ -353,70 +338,62 @@ sub xmlparse {
my @stack = ();
my @parstack = ();
- &initdepth;
-
+ &initdepth();
+ &init_alarm();
my $finaloutput = &inner_xmlparse($target,\@stack,\@parstack,\@pars,
- $safeeval,\%style_for_target);
+ $safeeval,\%style_for_target,1);
- if ($ENV{'request.uri'}) {
- &writeallows($ENV{'request.uri'});
+ if (@stack) {
+ &warning("At end of file some tags were still left unclosed, ".
+ '<tt><'.join('></tt>, <tt><',reverse(@stack)).
+ '></tt>');
+ }
+ if ($env{'request.uri'}) {
+ &writeallows($env{'request.uri'});
}
&do_registered_ssi();
if ($Apache::lonxml::counter_changed) { &store_counter() }
- return $finaloutput;
-}
-sub htmlclean {
- my ($raw,$full)=@_;
-# Take care of CRLF etc
-
- $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) {
- $raw=~s/\<[\/]*(body|head|html)\>//gis;
- }
-# 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 $raw;
+ &clean_safespace($safeeval);
+
+ if ($env{'form.return_only_error_and_warning_counts'}) {
+ return "$errorcount:$warningcount";
+ }
+ return $finaloutput;
}
sub latex_special_symbols {
my ($string,$where)=@_;
+ #
+ # If e.g. in verbatim mode, then don't substitute.
+ # but return original string.
+ #
+ if (!($Apache::lonxml::substitute_LaTeX_symbols)) {
+ return $string;
+ }
if ($where eq 'header') {
- $string =~ s/(\\|_|\^)/ /g;
+ $string =~ s/\\/\$\\backslash\$/g; # \ -> $\backslash$ per LaTex line by line pg 10.
$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;
+ $string =~ s/_/\\_/g; # _ -> \_
+ $string =~ s/\^/\\\^{}/g; # ^ -> \^{}
} else {
$string=~s/\\/\\ensuremath{\\backslash}/g;
- $string=~s/([^\\]|^)\%/$1\\\%/g;
- $string=~s/([^\\]|^)\$/$1\\\$/g;
- $string=~s/([^\\])\_/$1\\_/g;
- $string=~s/\$\$/\$\\\$/g;
- $string=~s/\_\_/\_\\\_/g;
- $string=~s/\#\#/\#\\\#/g;
+ $string=~s/\\\%|\%/\\\%/g;
+ $string=~s/\\{|{/\\{/g;
+ $string=~s/\\}|}/\\}/g;
+ $string=~s/\\ensuremath\\{\\backslash\\}/\\ensuremath{\\backslash}/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/([^\\]|^)\&/$1\\\&/g;
- $string=~s/([^\\]|^)\#/$1\\\#/g;
+ $string=~s/\\\&|\&/\\\&/g;
+ $string=~s/\\\#|\#/\\\#/g;
$string=~s/\|/\$\\mid\$/g;
#single { or } How to escape?
}
@@ -424,11 +401,12 @@ sub latex_special_symbols {
}
sub inner_xmlparse {
- my ($target,$stack,$parstack,$pars,$safeeval,$style_for_target)=@_;
+ my ($target,$stack,$parstack,$pars,$safeeval,$style_for_target,$start)=@_;
my $finaloutput = '';
my $result;
my $token;
my $dontpop=0;
+ my $startredirection = $Apache::lonxml::redirection;
while ( $#$pars > -1 ) {
while ($token = $$pars['-1']->get_token) {
if (($token->[0] eq 'T') || ($token->[0] eq 'C') ) {
@@ -538,7 +516,12 @@ sub inner_xmlparse {
# $finaloutput.=&endredirection;
# }
-
+ if ( $start && $target eq 'grade') { &endredirection(); }
+ if ( $Apache::lonxml::redirection > $startredirection) {
+ while ($Apache::lonxml::redirection > $startredirection) {
+ $finaloutput .= &endredirection();
+ }
+ }
if (($ENV{'QUERY_STRING'}) && ($target eq 'web')) {
$finaloutput=&afterburn($finaloutput);
}
@@ -624,8 +607,6 @@ sub callsub {
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;
@@ -636,6 +617,7 @@ sub setup_globals {
@Apache::lonxml::ssi_info=();
$Apache::lonxml::post_evaluate=1;
$Apache::lonxml::warnings_error_header='';
+ $Apache::lonxml::substitute_LaTeX_symbols = 1;
if ($target eq 'meta') {
$Apache::lonxml::redirection = 0;
$Apache::lonxml::metamode = 1;
@@ -647,7 +629,7 @@ sub setup_globals {
$Apache::lonxml::evaluate = 1;
$Apache::lonxml::import = 1;
} elsif ($target eq 'grade') {
- &startredirection;
+ &startredirection(); #ended in inner_xmlparse on exit
$Apache::lonxml::metamode = 0;
$Apache::lonxml::evaluate = 1;
$Apache::lonxml::import = 1;
@@ -676,16 +658,30 @@ sub setup_globals {
sub init_safespace {
my ($target,$safeeval,$safehole,$safeinit) = @_;
+ $safeeval->deny_only(':dangerous');
+ $safeeval->reval('use Math::Complex;');
+ $safeeval->permit_only(":default");
$safeeval->permit("entereval");
$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(\&Apache::lonmaxima::maxima_eval,$safeeval,'&maxima_eval');
+ $safehole->wrap(\&Apache::lonmaxima::maxima_check,$safeeval,'&maxima_check');
+ $safehole->wrap(\&Apache::lonmaxima::maxima_cas_formula_fix,$safeeval,
+ '&maxima_cas_formula_fix');
+
+ $safehole->wrap(\&Apache::caparesponse::capa_formula_fix,$safeeval,
+ '&capa_formula_fix');
$safehole->wrap(\&Math::Cephes::asin,$safeeval,'&asin');
$safehole->wrap(\&Math::Cephes::acos,$safeeval,'&acos');
@@ -730,6 +726,36 @@ sub init_safespace {
$safehole->wrap(\&Math::Cephes::stdtr ,$safeeval,'&stdtr' );
$safehole->wrap(\&Math::Cephes::stdtri,$safeeval,'&stdtri');
+ $safehole->wrap(\&Math::Cephes::Matrix::mat,$safeeval,'&mat');
+ $safehole->wrap(\&Math::Cephes::Matrix::new,$safeeval,
+ '&Math::Cephes::Matrix::new');
+ $safehole->wrap(\&Math::Cephes::Matrix::coef,$safeeval,
+ '&Math::Cephes::Matrix::coef');
+ $safehole->wrap(\&Math::Cephes::Matrix::clr,$safeeval,
+ '&Math::Cephes::Matrix::clr');
+ $safehole->wrap(\&Math::Cephes::Matrix::add,$safeeval,
+ '&Math::Cephes::Matrix::add');
+ $safehole->wrap(\&Math::Cephes::Matrix::sub,$safeeval,
+ '&Math::Cephes::Matrix::sub');
+ $safehole->wrap(\&Math::Cephes::Matrix::mul,$safeeval,
+ '&Math::Cephes::Matrix::mul');
+ $safehole->wrap(\&Math::Cephes::Matrix::div,$safeeval,
+ '&Math::Cephes::Matrix::div');
+ $safehole->wrap(\&Math::Cephes::Matrix::inv,$safeeval,
+ '&Math::Cephes::Matrix::inv');
+ $safehole->wrap(\&Math::Cephes::Matrix::transp,$safeeval,
+ '&Math::Cephes::Matrix::transp');
+ $safehole->wrap(\&Math::Cephes::Matrix::simq,$safeeval,
+ '&Math::Cephes::Matrix::simq');
+ $safehole->wrap(\&Math::Cephes::Matrix::mat_to_vec,$safeeval,
+ '&Math::Cephes::Matrix::mat_to_vec');
+ $safehole->wrap(\&Math::Cephes::Matrix::vec_to_mat,$safeeval,
+ '&Math::Cephes::Matrix::vec_to_mat');
+ $safehole->wrap(\&Math::Cephes::Matrix::check,$safeeval,
+ '&Math::Cephes::Matrix::check');
+ $safehole->wrap(\&Math::Cephes::Matrix::check,$safeeval,
+ '&Math::Cephes::Matrix::check');
+
# $safehole->wrap(\&Math::Cephes::new_fract,$safeeval,'&new_fract');
# $safehole->wrap(\&Math::Cephes::radd,$safeeval,'&radd');
# $safehole->wrap(\&Math::Cephes::rsub,$safeeval,'&rsub');
@@ -760,19 +786,55 @@ sub init_safespace {
$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::lonnet::logthis,$safeeval,'&LONCAPA_INTERNAL_LOGTHIS');
+ $safehole->wrap(\&Apache::inputtags::finalizeawards,$safeeval,'&LONCAPA_INTERNAL_FINALIZEAWARDS');
$safehole->wrap(\&Apache::caparesponse::get_sigrange,$safeeval,'&LONCAPA_INTERNAL_get_sigrange');
-
+# use Data::Dumper;
+# $safehole->wrap(\&Data::Dumper::Dumper,$safeeval,'&LONCAPA_INTERNAL_Dumper');
#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.'";';
- &Apache::lonxml::debug("Setting rndseed to $rndseed");
&Apache::run::run($safeinit,$safeeval);
+ &initialize_rndseed($safeeval);
+}
+sub clean_safespace {
+ my ($safeeval) = @_;
+ delete_package_recurse($safeeval->{Root});
+}
+
+sub delete_package_recurse {
+ my ($package) = @_;
+ my @subp;
+ {
+ no strict 'refs';
+ while (my ($key,$val) = each(%{*{"$package\::"}})) {
+ if (!defined($val)) { next; }
+ local (*ENTRY) = $val;
+ if (defined *ENTRY{HASH} && $key =~ /::$/ &&
+ $key ne "main::" && $key ne "<none>::")
+ {
+ my ($p) = $package ne "main" ? "$package\::" : "";
+ ($p .= $key) =~ s/::$//;
+ push(@subp,$p);
+ }
+ }
+ }
+ foreach my $p (@subp) {
+ delete_package_recurse($p);
+ }
+ Symbol::delete_package($package);
+}
+
+sub initialize_rndseed {
+ my ($safeeval)=@_;
+ my $rndseed;
+ my ($symb,$courseid,$domain,$name) = &Apache::lonnet::whichuser();
+ $rndseed=&Apache::lonnet::rndseed($symb,$courseid,$domain,$name);
+ my $safeinit = '$external::randomseed="'.$rndseed.'";';
+ &Apache::lonxml::debug("Setting rndseed to $rndseed");
+ &Apache::run::run($safeinit,$safeeval);
}
sub default_homework_load {
@@ -787,6 +849,28 @@ 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 {
if (!$Apache::lonxml::redirection) {
@@ -799,7 +883,7 @@ sub startredirection {
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);
+ &Apache::lonxml::error("Endredirection was called before a startredirection, perhaps you have unbalanced tags. Some debugging information:".join ":",caller);
return '';
}
$Apache::lonxml::redirection--;
@@ -866,6 +950,16 @@ sub decreasedepth {
#print "<br />e $Apache::lonxml::depth : $Apache::lonxml::olddepth : $token->[1] : $curdepth\n";
}
+sub get_id {
+ my ($parstack,$safeeval)=@_;
+ my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
+ if ($env{'request.state'} eq 'construct' && $id =~ /(\.|_)/) {
+ &error(&mt("IDs are not allowed to contain "<tt>_</tt>" or "<tt>.</tt>""));
+ }
+ if ($id =~ /^\s*$/) { $id = $Apache::lonxml::curdepth; }
+ return $id;
+}
+
sub get_all_text_unbalanced {
#there is a copy of this in lonpublisher.pm
my($tag,$pars)= @_;
@@ -874,7 +968,11 @@ sub get_all_text_unbalanced {
$tag='<'.$tag.'>';
while ($token = $$pars[-1]->get_token) {
if (($token->[0] eq 'T')||($token->[0] eq 'C')||($token->[0] eq 'D')) {
- $result.=$token->[1];
+ if ($token->[0] eq 'T' && $token->[2]) {
+ $result.='<![CDATA['.$token->[1].']]>';
+ } else {
+ $result.=$token->[1];
+ }
} elsif ($token->[0] eq 'PI') {
$result.=$token->[2];
} elsif ($token->[0] eq 'S') {
@@ -905,8 +1003,11 @@ sub increment_counter {
}
sub init_counter {
- if (defined($ENV{'form.counter'})) {
- $Apache::lonxml::counter=$ENV{'form.counter'};
+ if ($env{'request.state'} eq 'construct') {
+ $Apache::lonxml::counter=1;
+ $Apache::lonxml::counter_changed=1;
+ } elsif (defined($env{'form.counter'})) {
+ $Apache::lonxml::counter=$env{'form.counter'};
$Apache::lonxml::counter_changed=0;
} else {
$Apache::lonxml::counter=1;
@@ -916,9 +1017,36 @@ sub init_counter {
sub store_counter {
&Apache::lonnet::appenv(('form.counter' => $Apache::lonxml::counter));
+ $Apache::lonxml::counter_changed=0;
return '';
}
+{
+ my $state;
+ sub clear_problem_counter {
+ undef($state);
+ &Apache::lonnet::delenv('form.counter');
+ &Apache::lonxml::init_counter();
+ &Apache::lonxml::store_counter();
+ }
+
+ sub remember_problem_counter {
+ &Apache::lonnet::transfer_profile_to_env(undef,undef,1);
+ $state = $env{'form.counter'};
+ }
+
+ sub restore_problem_counter {
+ if (defined($state)) {
+ &Apache::lonnet::appenv(('form.counter' => $state));
+ }
+ }
+ sub get_problem_counter {
+ if ($Apache::lonxml::counter_changed) { &store_counter() }
+ &Apache::lonnet::transfer_profile_to_env(undef,undef,1);
+ return $env{'form.counter'};
+ }
+}
+
sub get_all_text {
my($tag,$pars,$style)= @_;
my $gotfullstack=1;
@@ -940,7 +1068,11 @@ sub get_all_text {
while (($depth >=0) && ($token = $$pars[-1]->get_token)) {
#&Apache::lonxml::debug("e token:$token->[0]:$depth:$token->[1]:".$#$pars.":".$#Apache::lonxml::pwd);
if (($token->[0] eq 'T')||($token->[0] eq 'C')||($token->[0] eq 'D')) {
- $result.=$token->[1];
+ if ($token->[2]) {
+ $result.='<![CDATA['.$token->[1].']]>';
+ } else {
+ $result.=$token->[1];
+ }
} elsif ($token->[0] eq 'PI') {
$result.=$token->[2];
} elsif ($token->[0] eq 'S') {
@@ -992,7 +1124,11 @@ sub get_all_text {
#&Apache::lonxml::debug("s token:$token->[0]:$depth:$token->[1]");
if (($token->[0] eq 'T')||($token->[0] eq 'C')||
($token->[0] eq 'D')) {
- $result.=$token->[1];
+ if ($token->[2]) {
+ $result.='<![CDATA['.$token->[1].']]>';
+ } else {
+ $result.=$token->[1];
+ }
} elsif ($token->[0] eq 'PI') {
$result.=$token->[2];
} elsif ($token->[0] eq 'S') {
@@ -1020,7 +1156,8 @@ sub get_all_text {
sub newparser {
my ($parser,$contentref,$dir) = @_;
push (@$parser,HTML::LCParser->new($contentref));
- $$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 {
@@ -1029,26 +1166,38 @@ sub newparser {
}
sub parstring {
- my ($token) = @_;
- my $temp='';
- foreach (@{$token->[3]}) {
- 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; }
- $temp .= "my \$$_=\"$val\";";
+ my ($token) = @_;
+ my (@vars,@values);
+ foreach my $attr (@{$token->[3]}) {
+ if ($attr!~/\W/) {
+ my $val=$token->[2]->{$attr};
+ $val =~ s/([\%\@\\\"\'])/\\$1/g;
+ $val =~ s/(\$[^\{a-zA-Z_])/\\$1/g;
+ $val =~ s/(\$)$/\\$1/;
+ #if ($val =~ m/^[\%\@]/) { $val="\\".$val; }
+ push(@vars,"\$$attr");
+ push(@values,"\"$val\"");
+ }
+ }
+ my $var_init =
+ (@vars) ? 'my ('.join(',',@vars).') = ('.join(',',@values).');'
+ : '';
+ return $var_init;
+}
+
+sub extlink {
+ my ($res,$exact)=@_;
+ if (!$exact) {
+ $res=&Apache::lonnet::hreflocation($Apache::lonxml::pwd[-1],$res);
}
- }
- return $temp;
+ push(@Apache::lonxml::extlinks,$res)
}
sub writeallows {
unless ($#extlinks>=0) { return; }
- my $thisurl='/res/'.&Apache::lonnet::declutter(shift);
- if ($ENV{'httpref.'.$thisurl}) {
- $thisurl=$ENV{'httpref.'.$thisurl};
+ my $thisurl = &Apache::lonnet::clutter(shift);
+ if ($env{'httpref.'.$thisurl}) {
+ $thisurl=$env{'httpref.'.$thisurl};
}
my $thisdir=$thisurl;
$thisdir=~s/\/[^\/]+$//;
@@ -1081,24 +1230,24 @@ sub afterburn {
my $result=shift;
&Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
['highlight','anchor','link']);
- if ($ENV{'form.highlight'}) {
- foreach (split(/\,/,$ENV{'form.highlight'})) {
+ if ($env{'form.highlight'}) {
+ foreach (split(/\,/,$env{'form.highlight'})) {
my $anchorname=$_;
my $matchthis=$anchorname;
$matchthis=~s/\_+/\\s\+/g;
$result=~s/(\Q$matchthis\E)/\<font color=\"red\"\>$1\<\/font\>/gs;
}
}
- if ($ENV{'form.link'}) {
- foreach (split(/\,/,$ENV{'form.link'})) {
+ if ($env{'form.link'}) {
+ foreach (split(/\,/,$env{'form.link'})) {
my ($anchorname,$linkurl)=split(/\>/,$_);
my $matchthis=$anchorname;
$matchthis=~s/\_+/\\s\+/g;
$result=~s/(\Q$matchthis\E)/\<a href=\"$linkurl\"\>$1\<\/a\>/gs;
}
}
- if ($ENV{'form.anchor'}) {
- my $anchorname=$ENV{'form.anchor'};
+ if ($env{'form.anchor'}) {
+ my $anchorname=$env{'form.anchor'};
my $matchthis=$anchorname;
$matchthis=~s/\_+/\\s\+/g;
$result=~s/(\Q$matchthis\E)/\<a name=\"$anchorname\"\>$1\<\/a\>/s;
@@ -1128,7 +1277,6 @@ sub createnewhtml {
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</title>
@@ -1162,8 +1310,7 @@ sub inserteditinfo {
my $initialize='';
if ($filetype eq 'html') {
my $addbuttons=&Apache::lonhtmlcommon::htmlareaaddbuttons();
- $initialize=&Apache::lonhtmlcommon::htmlareaheaders().
- &Apache::lonhtmlcommon::spellheader();
+ $initialize=&Apache::lonhtmlcommon::spellheader();
if (!&Apache::lonhtmlcommon::htmlareablocked() &&
&Apache::lonhtmlcommon::htmlareabrowser()) {
$initialize.=(<<FULLPAGE);
@@ -1192,21 +1339,21 @@ FULLPAGE
$xml_help=&Apache::loncommon::helpLatexCheatsheet();
}
my $cleanbut = '';
- if ($filetype eq 'html') {
- $cleanbut='<input type="submit" name="attemptclean" value="'.
- &mt('Save and then attempt to clean HTML').'" />';
- }
+
my $titledisplay=&display_title();
- my %lt=&Apache::lonlocal::texthash('st' => 'Save this',
- 'vi' => 'View',
+ my %lt=&Apache::lonlocal::texthash('st' => 'Save and Edit',
+ 'vi' => 'Save and View',
+ 'dv' => 'Discard Edits and View',
+ 'un' => 'undo',
'ed' => 'Edit');
my $buttons=(<<BUTTONS);
$cleanbut
+<input type="submit" name="discardview" accesskey="d" value="$lt{'dv'}" />
+<input type="submit" name="Undo" accesskey="u" value="$lt{'un'}" /><hr>
<input type="submit" name="savethisfile" accesskey="s" value="$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 />
@@ -1215,7 +1362,7 @@ $initialize
$xml_help
<input type="hidden" name="editmode" value="$lt{'ed'}" />
$buttons<br />
-<textarea cols="80" rows="44" name="filecont" id="filecont">$filecontents</textarea>
+<textarea style="width:100%" cols="80" rows="44" name="filecont" id="filecont">$filecontents</textarea>
<br />$buttons
<br />
</form>
@@ -1228,24 +1375,24 @@ ENDFOOTER
}
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'})
+ 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 $ENV{'form.grade_target'}
+ return ($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'});
+ } elsif ($env{'request.state'} eq 'construct') {
+ if ( defined($env{'form.grade_target'})) {
+ return ($env{'form.grade_target'});
} else {
return 'web';
}
@@ -1259,16 +1406,14 @@ sub handler {
my $target=&get_target();
- $Apache::lonxml::debug=$ENV{'user.debug'};
+ $Apache::lonxml::debug=$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);
- $request->set_last_modified(&Apache::lonnet::metadata($request->uri,
- 'lastrevisiondate'));
+ if ($env{'request.state'} eq 'published') {
+ $request->set_last_modified(&Apache::lonnet::metadata($request->uri,
+ 'lastrevisiondate'));
+ }
$request->send_http_header;
return OK if $request->header_only;
@@ -1284,80 +1429,75 @@ sub handler {
#
# Edit action? Save file.
#
- unless ($ENV{'request.state'} eq 'published') {
- if (($ENV{'form.savethisfile'}) || ($ENV{'form.attemptclean'})) {
- if (&storefile($file,$ENV{'form.filecont'})) {
- &Apache::lonxml::info("<font COLOR=\"#0000FF\">".
- &mt('Updated').": ".
- &Apache::lonlocal::locallocaltime(time).
- " </font>");
- }
+ if (!($env{'request.state'} eq 'published')) {
+ if ($env{'form.savethisfile'} || $env{'form.viewmode'} || $env{'form.Undo'}) {
+ my $html_file=&Apache::lonnet::getfile($file);
+ my $error = &Apache::lonhomework::handle_save_or_undo($request, \$html_file, \$env{'form.filecont'});
}
}
my %mystyle;
my $result = '';
my $filecontents=&Apache::lonnet::getfile($file);
if ($filecontents eq -1) {
- my $bodytag=&Apache::loncommon::bodytag('File Error');
+ my $start_page=&Apache::loncommon::start_page('File Error');
+ my $end_page=&Apache::loncommon::end_page();
my $fnf=&mt('File not found');
$result=(<<ENDNOTFOUND);
-<html>
-<head>
-<title>$fnf</title>
-</head>
-$bodytag
+$start_page
<b>$fnf: $file</b>
-</body>
-</html>
+$end_page
ENDNOTFOUND
$filecontents='';
- if ($ENV{'request.state'} ne 'published') {
+ if ($env{'request.state'} ne 'published') {
if ($filetype eq 'sty') {
$filecontents=&createnewsty();
} else {
$filecontents=&createnewhtml();
}
- $ENV{'form.editmode'}='Edit'; #force edit mode
+ $env{'form.editmode'}='Edit'; #force edit mode
}
} else {
- unless ($ENV{'request.state'} eq 'published') {
+ 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);
+ &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.'));
}
#
# we are in construction space, see if edit mode forced
- &Apache::loncommon::get_unprocessed_cgi
- ($ENV{'QUERY_STRING'},['editmode']);
+ &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
+ ['editmode']);
}
- if (!$ENV{'form.editmode'} || $ENV{'form.viewmode'}) {
+ if (!$env{'form.editmode'} || $env{'form.viewmode'} || $env{'form.discardview'}) {
$result = &Apache::lonxml::xmlparse($request,$target,$filecontents,
'',%mystyle);
+ undef($Apache::lonhomework::parsing_a_task);
+ &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
+ ['rawmode']);
+ if ($env{'form.rawmode'}) { $result = $filecontents; }
}
}
#
# Edit action? Insert editing commands
#
- unless ($ENV{'request.state'} eq 'published') {
- if ($ENV{'form.editmode'} && (!($ENV{'form.viewmode'}))) {
+ unless ($env{'request.state'} eq 'published') {
+ if ($env{'form.editmode'} && (!($env{'form.viewmode'})) && (!($env{'form.discardview'})))
+ {
my $displayfile=$request->uri;
$displayfile=~s/^\/[^\/]*//;
- my $bodytag='<body bgcolor="#FFFFFF">';
- if ($ENV{'environment.remote'} eq 'off') {
- $bodytag=&Apache::loncommon::bodytag();
+ my %options = ();
+ if ($env{'environment.remote'} ne 'off') {
+ $options{'bgcolor'} = '#FFFFFF';
}
- $result='<html>'.$bodytag.
+ my $start_page = &Apache::loncommon::start_page(undef,undef,
+ \%options);
+ $result=$start_page.
&Apache::lonxml::message_location().'<h3>'.
$displayfile.
- '</h3></body></html>';
+ '</h3>'.&Apache::loncommon::end_page();
$result=&inserteditinfo($result,$filecontents,$filetype);
}
}
- if ($filetype eq 'html') { writeallows($request->uri); }
+ if ($filetype eq 'html') { &writeallows($request->uri); }
&Apache::lonxml::add_messages(\$result);
@@ -1368,10 +1508,10 @@ ENDNOTFOUND
sub display_title {
my $result;
- if ($ENV{'request.state'} eq 'construct') {
+ if ($env{'request.state'} eq 'construct') {
my $title=&Apache::lonnet::gettitle();
if (!defined($title) || $title eq '') {
- $title = $ENV{'request.filename'};
+ $title = $env{'request.filename'};
$title = substr($title, rindex($title, '/') + 1);
}
$result = "<script type='text/javascript'>top.document.title = '$title - LON-CAPA Construction Space';</script>";
@@ -1383,22 +1523,27 @@ sub debug {
if ($Apache::lonxml::debug eq "1") {
$|=1;
my $request=$Apache::lonxml::request;
- if (!$request) { $request=Apache->request; }
+ if (!$request) {
+ eval { $request=Apache->request; };
+ }
+ if (!$request) {
+ eval { $request=Apache2::RequestUtil->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',$ENV{'request.course.id'})) {
+ if ($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) ||
- ($ENV{'request.state'} eq 'construct') ||
+ ($env{'request.state'} eq 'construct') ||
($Apache::lonhomework::browse eq 'F'
&&
- $ENV{'form.show_errors'} eq 'on'));
+ $env{'form.show_errors'} eq 'on'));
}
sub error {
@@ -1415,21 +1560,39 @@ sub error {
if ( !$symb ) {
#public or browsers
$errormsg=&mt("An error occured while processing this resource. The author has been notified.");
- }
+ }
+ my $host=$Apache::lonnet::perlvar{'lonHostID'};
+ my $msg = join('<br />',(@_,"The error occurred on host <tt>$host</tt>"));
#notify author
- &Apache::lonmsg::author_res_msg($ENV{'request.filename'},join('<br />',@_));
+ &Apache::lonmsg::author_res_msg($env{'request.filename'},$msg);
#notify course
- if ( $symb && $ENV{'request.course.id'} ) {
+ if ( $symb && $env{'request.course.id'} ) {
+ my $cnum=$env{'course.'.$env{'request.course.id'}.'.num'};
+ my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
my (undef,%users)=&Apache::lonfeedback::decide_receiver(undef,0,1,1,1);
- my $declutter=&Apache::lonnet::declutter($ENV{'request.filename'});
+ my $declutter=&Apache::lonnet::declutter($env{'request.filename'});
+ my $baseurl = &Apache::lonnet::clutter($declutter);
my @userlist;
foreach (keys %users) {
my ($user,$domain) = split(/:/, $_);
push(@userlist,"$user\@$domain");
- &Apache::lonmsg::user_normal_msg($user,$domain,
- "Error [$declutter]",join('<br />',@_));
+ my $key=$declutter.'_'.$user.'_'.$domain;
+ my %lastnotified=&Apache::lonnet::get('nohist_xmlerrornotifications',
+ [$key],
+ $cdom,$cnum);
+ my $now=time;
+ if ($now-$lastnotified{$key}>86400) {
+ my $title = &Apache::lonnet::gettitle($symb);
+ my $sentmessage;
+ &Apache::lonmsg::user_normal_msg($user,$domain,
+ "Error [$title]",$msg,'',$baseurl,'','',
+ \$sentmessage,$symb,$title,1);
+ &Apache::lonnet::put('nohist_xmlerrornotifications',
+ {$key => $now},
+ $cdom,$cnum);
+ }
}
- if ($ENV{'request.role.adv'}) {
+ if ($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.");
@@ -1442,10 +1605,8 @@ sub error {
sub warning {
$warningcount++;
- if ($ENV{'form.grade_target'} ne 'tex') {
+ 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,
$Apache::lonxml::warnings_error_header.
"<b>W</b>ARNING<b>:</b>".join('<br />',@_)."<br />\n");
@@ -1455,8 +1616,8 @@ sub warning {
}
sub info {
- if ($ENV{'form.grade_target'} ne 'tex'
- && $ENV{'request.state'} eq 'construct') {
+ if ($env{'form.grade_target'} ne 'tex'
+ && $env{'request.state'} eq 'construct') {
push(@Apache::lonxml::info_messages,join('<br />',@_)."<br />\n");
}
}
@@ -1488,14 +1649,14 @@ sub get_param {
}
if ( ! $args ) { return undef; }
if ( $case_insensitive ) {
- if ($args =~ s/(my \$)(\Q$param\E)(=\")/$1.lc($2).$3/ei) {
+ if ($args =~ s/(my (?:.*))(\$\Q$param\E[,\)])/$1.lc($2)/ei) {
return &Apache::run::run("{$args;".'return $'.$param.'}',
$safeeval); #'
} else {
return undef;
}
} else {
- if ( $args =~ /my \$\Q$param\E=\"/ ) {
+ if ( $args =~ /my .*\$\Q$param\E[,\)]/ ) {
return &Apache::run::run("{$args;".'return $'.$param.'}',
$safeeval); #'
} else {
@@ -1514,10 +1675,10 @@ sub get_param_var {
}
&Apache::lonxml::debug("Args are $args param is $param");
if ($case_insensitive) {
- if (! ($args=~s/(my \$)(\Q$param\E)(=\")/$1.lc($2).$3/ei)) {
+ if (! ($args=~s/(my (?:.*))(\$\Q$param\E[,\)])/$1.lc($2)/ei)) {
return undef;
}
- } elsif ( $args !~ /my \$\Q$param\E=\"/ ) { 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 =~ /^[\$\@\%][a-zA-Z_]\w*$/) {
@@ -1600,48 +1761,6 @@ sub helpinfo {
return ($insertlist{$tagnum.'.helpfile'}, $insertlist{$tagnum.'.helpdesc'});
}
-# ----------------------------------------------------------------- whichuser
-# returns a list of $symb, $courseid, $domain, $name that is correct for
-# calls to lonnet functions for this setup.
-# - looks for form.grade_ parameters
-sub whichuser {
- my ($passedsymb)=@_;
- my ($symb,$courseid,$domain,$name,$publicuser);
- if (defined($ENV{'form.grade_symb'})) {
- 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.
- '/'.$ENV{'request.course.sec'});
- }
- if ($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);
-}
-
1;
__END__