version 1.4, 2000/09/14 20:10:39
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version 1.87, 2007/11/30 19:14:14
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# The LearningOnline Network with CAPA |
# The LearningOnline Network with CAPA |
# Page Handler |
# Page Handler |
# |
# |
# (TeX Content Handler |
# $Id$ |
# |
# |
# 05/29/00,05/30 Gerd Kortemeyer) |
# Copyright Michigan State University Board of Trustees |
# 08/30,08/31,09/06,09/14 Gerd Kortemeyer |
# |
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# This file is part of the LearningOnline Network with CAPA (LON-CAPA). |
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# |
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# LON-CAPA is free software; you can redistribute it and/or modify |
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# it under the terms of the GNU General Public License as published by |
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# the Free Software Foundation; either version 2 of the License, or |
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# (at your option) any later version. |
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# |
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# LON-CAPA is distributed in the hope that it will be useful, |
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# but WITHOUT ANY WARRANTY; without even the implied warranty of |
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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# GNU General Public License for more details. |
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# |
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# You should have received a copy of the GNU General Public License |
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# along with LON-CAPA; if not, write to the Free Software |
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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# |
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# /home/httpd/html/adm/gpl.txt |
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# |
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# http://www.lon-capa.org/ |
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# |
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### |
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package Apache::lonpage; |
package Apache::lonpage; |
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use strict; |
use strict; |
use Apache::Constants qw(:common :http); |
use Apache::Constants qw(:common :http); |
use Apache::lonnet(); |
use Apache::lonnet; |
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use Apache::loncommon(); |
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use Apache::lonxml(); |
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use Apache::lonlocal; |
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use Apache::lonmenu; |
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use HTML::TokeParser; |
use GDBM_File; |
use GDBM_File; |
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use Apache::lonsequence; |
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use lib '/home/httpd/lib/perl/'; |
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use LONCAPA; |
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# -------------------------------------------------------------- Module Globals |
# -------------------------------------------------------------- Module Globals |
my %hash; |
my %hash; |
my @rows; |
my @rows; |
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my %ssibody=(); |
# ------------------------------------------------------------------ Euclid gcd |
my %ssibgcolor=(); |
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my %ssitext=(); |
sub euclid { |
my %ssilink=(); |
my ($e,$f)=@_; |
my %ssivlink=(); |
my $a; my $b; my $r; |
my %ssialink=(); |
if ($e>$f) { $b=$e; $r=$f; } else { $r=$e; $b=$f; } |
my %cellemb=(); |
while ($r!=0) { |
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$a=$b; $b=$r; |
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$r=$a%$b; |
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} |
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return $b; |
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} |
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# ------------------------------------------------------------ Build page table |
# ------------------------------------------------------------ Build page table |
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sub tracetable { |
sub tracetable { |
my ($sofar,$rid,$beenhere)=@_; |
my ($sofar,$rid,$beenhere)=@_; |
my $further=$sofar; |
my $further=$sofar; |
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my $randomout=0; |
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unless ($env{'request.role.adv'}) { |
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$randomout = $hash{'randomout_'.$rid}; |
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} |
unless ($beenhere=~/\&$rid\&/) { |
unless ($beenhere=~/\&$rid\&/) { |
$beenhere.=$rid.'&'; |
$beenhere.=$rid.'&'; |
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unless ($randomout) { |
if (defined($hash{'is_map_'.$rid})) { |
if (defined($hash{'is_map_'.$rid})) { |
if ((defined($hash{'map_start_'.$hash{'src_'.$rid}})) && |
if ((defined($hash{'map_start_'.$hash{'src_'.$rid}})) && |
(defined($hash{'map_finish_'.$hash{'src_'.$rid}}))) { |
(defined($hash{'map_finish_'.$hash{'src_'.$rid}}))) { |
my $frid=$hash{'map_finish_'.$hash{'src_'.$rid}}; |
my $frid=$hash{'map_finish_'.$hash{'src_'.$rid}}; |
$sofar= |
$sofar= |
&tracetable($sofar,$hash{'map_start_'.$hash{'src_'.$rid}}, |
&tracetable($sofar,$hash{'map_start_'.$hash{'src_'.$rid}}, |
'&'.$frid.'&'); |
'&'.$frid.$beenhere); |
$sofar++; |
$sofar++; |
if ($hash{'src_'.$frid}) { |
if ($hash{'src_'.$frid}) { |
my $brepriv=&Apache::lonnet::allowed('bre',$hash{'src_'.$frid}); |
my $brepriv=&Apache::lonnet::allowed('bre',$hash{'src_'.$frid}); |
if (($brepriv eq '2') || ($brepriv eq 'F')) { |
if (($brepriv eq '2') || ($brepriv eq 'F')) { |
if (defined($rows[$sofar])) { |
if (defined($rows[$sofar])) { |
$rows[$sofar].='&'.$frid; |
$rows[$sofar].='&'.$frid; |
} else { |
} else { |
$rows[$sofar]=$frid; |
$rows[$sofar]=$frid; |
} |
} |
} |
} |
} |
} |
} |
} |
} else { |
} else { |
$sofar++; |
$sofar++; |
if ($hash{'src_'.$rid}) { |
if ($hash{'src_'.$rid}) { |
my $brepriv=&Apache::lonnet::allowed('bre',$hash{'src_'.$rid}); |
my $brepriv=&Apache::lonnet::allowed('bre',$hash{'src_'.$rid}); |
if (($brepriv eq '2') || ($brepriv eq 'F')) { |
if (($brepriv eq '2') || ($brepriv eq 'F')) { |
if (defined($rows[$sofar])) { |
if (defined($rows[$sofar])) { |
$rows[$sofar].='&'.$rid; |
$rows[$sofar].='&'.$rid; |
} else { |
} else { |
$rows[$sofar]=$rid; |
$rows[$sofar]=$rid; |
} |
} |
} |
} |
} |
} |
} |
} |
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} |
if (defined($hash{'to_'.$rid})) { |
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map { |
if (defined($hash{'to_'.$rid})) { |
my $now=&tracetable($sofar,$hash{'goesto_'.$_},$beenhere); |
my $mincond=1; |
if ($now>$further) { $further=$now; } |
my $next=''; |
} split(/\,/,$hash{'to_'.$rid}); |
foreach (split(/\,/,$hash{'to_'.$rid})) { |
} |
my $thiscond= |
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&Apache::lonnet::directcondval($hash{'condid_'.$hash{'undercond_'.$_}}); |
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if ($thiscond>=$mincond) { |
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if ($next) { |
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$next.=','.$_.':'.$thiscond; |
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} else { |
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$next=$_.':'.$thiscond; |
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} |
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if ($thiscond>$mincond) { $mincond=$thiscond; } |
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} |
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} |
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foreach (split(/\,/,$next)) { |
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my ($linkid,$condval)=split(/\:/,$_); |
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if ($condval>=$mincond) { |
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my $now=&tracetable($sofar,$hash{'goesto_'.$linkid},$beenhere); |
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if ($now>$further) { $further=$now; } |
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} |
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} |
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} |
} |
} |
return $further; |
return $further; |
} |
} |
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sub cell { |
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my ($r,$colspan,$rid)=@_; |
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$r->print('<td colspan="'.$colspan.'">'); |
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$r->print($hash{'src_'.$rid}); |
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$r->print('</td>'); |
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} |
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# ================================================================ Main Handler |
# ================================================================ Main Handler |
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sub handler { |
sub handler { |
Line 91 sub handler {
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Line 141 sub handler {
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# ------------------------------------------- Set document type for header only |
# ------------------------------------------- Set document type for header only |
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if ($r->header_only) { |
if ($r->header_only) { |
if ($ENV{'browser.mathml'}) { |
if ($env{'browser.mathml'}) { |
$r->content_type('text/xml'); |
&Apache::loncommon::content_type($r,'text/xml'); |
} else { |
} else { |
$r->content_type('text/html'); |
&Apache::loncommon::content_type($r,'text/html'); |
} |
} |
$r->send_http_header; |
$r->send_http_header; |
return OK; |
return OK; |
} |
} |
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my $requrl=$r->uri; |
&Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'}, |
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['forceselect','launch']); |
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my $number_of_columns = 1; |
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my $requrl=$r->uri; |
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my $target = $env{'form.grade_target'}; |
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# &Apache::lonnet::logthis("Got a target of $target"); |
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if ($target eq 'meta') { |
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&Apache::loncommon::content_type($r,'text/html'); |
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$r->send_http_header; |
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return OK; |
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} |
# ----------------------------------------------------------------- Tie db file |
# ----------------------------------------------------------------- Tie db file |
if ($ENV{'request.course.fn'}) { |
if (($env{'request.course.fn'}) && (!$env{'form.forceselect'})) { |
my $fn=$ENV{'request.course.fn'}; |
my $fn=$env{'request.course.fn'}; |
if (-e "$fn.db") { |
if (-e "$fn.db") { |
if (tie(%hash,'GDBM_File',"$fn.db",&GDBM_WRCREAT,0640)) { |
if (tie(%hash,'GDBM_File',"$fn.db",&GDBM_READER(),0640)) { |
# ------------------------------------------------------------------- Hash tied |
# ------------------------------------------------------------------- Hash tied |
my $firstres=$hash{'map_start_'.$requrl}; |
my $firstres=$hash{'map_start_'.$requrl}; |
my $lastres=$hash{'map_finish_'.$requrl}; |
my $lastres=$hash{'map_finish_'.$requrl}; |
Line 114 sub handler {
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Line 174 sub handler {
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@rows=(); |
@rows=(); |
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&tracetable(0,$firstres,'&'.$lastres.'&'); |
&tracetable(0,$firstres,'&'); |
if ($hash{'src_'.$lastres}) { |
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my $brepriv= |
# ------------------------------------------------------------ Add to symb list |
&Apache::lonnet::allowed('bre',$hash{'src_'.$lastres}); |
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if (($brepriv eq '2') || ($brepriv eq 'F')) { |
my $i; |
$rows[$#rows+1]=''.$lastres; |
my %symbhash=(); |
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for ($i=0;$i<=$#rows;$i++) { |
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if ($rows[$i]) { |
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my @colcont=split(/\&/,$rows[$i]); |
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foreach my $rid (@colcont) { |
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my ($mapid,$resid)=split(/\./,$rid); |
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$symbhash{$hash{'src_'.$rid}}= |
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[$hash{'src_'.$rid},$resid]; |
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} |
} |
} |
} |
} |
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&Apache::lonnet::symblist($requrl,%symbhash); |
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# ------------------------------------------------------------------ Page parms |
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my $i; |
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my $j; |
my $j; |
my $maxcols=-1; |
my $lcm=1; |
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my $contents=0; |
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my $nforms=0; |
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my %ssibody=(); |
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my %ssibgcolor=(); |
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my %ssitext=(); |
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my %ssilink=(); |
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my %ssivlink=(); |
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my %ssialink=(); |
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my %cellemb=(); |
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my $allscript=''; |
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my $allmeta=''; |
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my $isxml=0; |
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my $xmlheader=''; |
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my $xmlbody=''; |
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# --------------------------------------------- Get SSI output, post parameters |
# --------------------------------------------- Get SSI output, post parameters |
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for ($i=0;$i<=$#rows;$i++) { |
for ($i=0;$i<=$#rows;$i++) { |
if ($rows[$i]) { |
if ($rows[$i]) { |
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$contents++; |
my @colcont=split(/\&/,$rows[$i]); |
my @colcont=split(/\&/,$rows[$i]); |
$maxcols=$#colcont>$maxcols?$#colcont:$maxcols; |
$lcm*=($#colcont+1)/euclid($lcm,($#colcont+1)); |
map { |
foreach (@colcont) { |
my $src=$hash{'src_'.$_}; |
my $src=$hash{'src_'.$_}; |
$src=~/\.\w+$/; |
my ($extension)=($src=~/\.(\w+)$/); |
$cellemb{$_}=Apache::lonnet::fileembstyle($1); |
if ($hash{'encrypted_'.$_}) { |
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$src=&Apache::lonenc::encrypted($src); |
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} |
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$cellemb{$_}= |
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&Apache::loncommon::fileembstyle($extension); |
if ($cellemb{$_} eq 'ssi') { |
if ($cellemb{$_} eq 'ssi') { |
# --------------------------------------------------------- This is an SSI cell |
# --------------------------------------------------------- This is an SSI cell |
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my ($mapid,$resid)=split(/\./,$_); |
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my $symb=&Apache::lonnet::encode_symb($hash{'map_id_'.$mapid},$resid,$src); |
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my $prefix=$_.'_'; |
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my %posthash=('request.prefix' => $prefix, |
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'LONCAPA_INTERNAL_no_discussion' => 'true', |
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'symb' => $symb); |
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if ($env{'form.grade_target'} eq 'tex') { |
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$posthash{'grade_target'}=$env{'form.grade_target'}; |
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$posthash{'textwidth'}=$env{'form.textwidth'}; |
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$posthash{'problem_split'}=$env{'form.problem_split'}; |
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$posthash{'latex_type'}=$env{'form.latex_type'}; |
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$posthash{'rndseed'}=$env{'form.rndseed'}; |
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} |
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my $submitted=exists($env{'form.all_submit'}); |
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if (!$submitted) { |
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foreach my $key (keys(%env)) { |
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if ($key=~/^form.\Q$prefix\Esubmit_/) { |
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$submitted=1;last; |
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} |
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} |
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} |
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if ($submitted) { |
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foreach my $key (keys(%env)) { |
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if ($key=~/^form.\Q$prefix\E/) { |
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my $name=$key; |
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$name=~s/^form.\Q$prefix\E//; |
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$posthash{$name}=$env{$key}; |
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} |
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} |
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if (exists($env{'form.all_submit'})) { |
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$posthash{'all_submit'}='yes'; |
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} |
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} |
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my $output=Apache::lonnet::ssi($src,%posthash); |
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$output=~s|//(\s*<!--)? BEGIN LON-CAPA Internal.+?// END LON-CAPA Internal\s*(-->)?\s||gs; |
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if ($target eq 'tex') { |
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$output =~ s/^([^&]+)\\begin{document}//; |
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$output =~ s/\\end{document}//; |
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$output = '\parbox{\minipagewidth}{ '.$output.' }'; |
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#some additional cleanup necessary for LateX (due to limitations of table environment |
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$output =~ s/(\\vskip\s*\d+mm)\s*(\\\\)+/$1/g; |
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} |
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my $parser=HTML::TokeParser->new(\$output); |
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my $token; |
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my $thisdir=$src; |
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my $bodydef=0; |
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my $thisxml=0; |
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my @rlinks=(); |
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if ($output=~/\?xml/) { |
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$isxml=1; |
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$thisxml=1; |
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$output=~ |
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/((?:\<(?:\?xml|\!DOC|html)[^\>]*(?:\>|\>\]\>)\s*)+)\<body[^\>]*\>/si; |
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$xmlheader=$1; |
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} |
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while ($token=$parser->get_token) { |
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if ($token->[0] eq 'S') { |
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if ($token->[1] eq 'a') { |
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if ($token->[2]->{'href'}) { |
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$rlinks[$#rlinks+1]= |
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$token->[2]->{'href'}; |
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} |
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} elsif ($token->[1] eq 'img') { |
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$rlinks[$#rlinks+1]= |
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$token->[2]->{'src'}; |
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} elsif ($token->[1] eq 'embed') { |
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$rlinks[$#rlinks+1]= |
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$token->[2]->{'src'}; |
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} elsif ($token->[1] eq 'base') { |
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$thisdir=$token->[2]->{'href'}; |
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} elsif ($token->[1] eq 'body') { |
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$bodydef=1; |
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$ssibgcolor{$_}=$token->[2]->{'bgcolor'}; |
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$ssitext{$_}=$token->[2]->{'text'}; |
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$ssilink{$_}=$token->[2]->{'link'}; |
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$ssivlink{$_}=$token->[2]->{'vlink'}; |
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$ssialink{$_}=$token->[2]->{'alink'}; |
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if ($thisxml) { |
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$xmlbody=$token->[4]; |
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} |
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} elsif ($token->[1] eq 'meta') { |
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if ($token->[4] !~ m:/>$:) { |
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$allmeta.="\n".$token->[4].'</meta>'; |
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} else { |
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$allmeta.="\n".$token->[4]; |
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} |
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} elsif (($token->[1] eq 'script') && |
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($bodydef==0)) { |
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$allscript.="\n\n" |
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.$parser->get_text('/script'); |
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} |
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} |
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} |
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if ($output=~/\<body[^\>]*\>(.*)/si) { |
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$output=$1; |
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} |
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$output=~s/\<\/body\>.*//si; |
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if ($output=~/\<form/si) { |
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$nforms++; |
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$output=~s/\<form[^\>]*\>//gsi; |
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$output=~s/\<\/form[^\>]*\>//gsi; |
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$output=~ |
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s/\<((?:input|select|button|textarea)[^\>]+)name\s*\=\s*[\'\"]*([^\'\"]+)[\'\"]*([^\>]*)\>/\<$1 name="$prefix$2" $3\>/gsi; |
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} |
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$thisdir=~s/\/[^\/]*$//; |
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foreach (@rlinks) { |
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unless (($_=~/^http:\/\//i) || |
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($_=~/^\//) || |
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($_=~/^javascript:/i) || |
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($_=~/^mailto:/i) || |
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($_=~/^\#/)) { |
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my $newlocation= |
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&Apache::lonnet::hreflocation($thisdir,$_); |
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$output=~s/(\"|\'|\=\s*)$_(\"|\'|\s|\>)/$1$newlocation$2/; |
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} |
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} |
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# -------------------------------------------------- Deal with Applet codebases |
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$output=~s/(\<applet[^\>]+)(codebase\=[^\S\>]+)*([^\>]*)\>/$1.($2?$2:' codebase="'.$thisdir.'"').$3.'>'/gei; |
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$ssibody{$_}=$output; |
# ---------------------------------------------------------------- End SSI cell |
# ---------------------------------------------------------------- End SSI cell |
} |
} |
} @colcont; |
} |
} |
} |
} |
} |
if ($maxcols<0) { |
unless ($contents) { |
$r->content_type('text/html'); |
&Apache::loncommon::content_type($r,'text/html'); |
$r->send_http_header; |
$r->send_http_header; |
$r->print('<html><body>Empty page.</body></html>'); |
$r->print(&Apache::loncommon::start_page(undef,undef, |
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{'force_register' => 1,})); |
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$r->print(&mt('This page is either empty or it only contains resources that are currently hidden').'. '); |
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$r->print('<br /><br />'.&mt('Please use the LON-CAPA navigation arrows to move to another item in the course'). |
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&Apache::loncommon::end_page()); |
} else { |
} else { |
# ------------------------------------------------------------------ Build page |
# ------------------------------------------------------------------ Build page |
$maxcols++; |
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$r->content_type('text/html'); |
# ---------------------------------------------------------------- Send headers |
$r->send_http_header; |
unless ($target eq 'tex') { |
$r->print('<html><body>'); |
if ($isxml) { |
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&Apache::loncommon::content_type($r,'text/xml'); |
$r->print('<table cols="'.$maxcols.'" rows="'. |
} else { |
$#rows.'" border=1>'); |
&Apache::loncommon::content_type($r,'text/html'); |
for ($i=2;$i<=$#rows;$i++) { |
} |
$r->print("\n<tr>"); |
$r->send_http_header; |
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# ------------------------------------------------------------------------ Head |
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if ($allscript) { |
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$allscript = |
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"\n".'<script type="text/javascript">'."\n". |
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$allscript. |
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"\n</script>\n"; |
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} |
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# ------------------------------------------------------------------ Start body |
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$r->print(&Apache::loncommon::start_page(undef,$allscript, |
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{'force_register' => 1, |
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'bgcolor' => '#ffffff',})); |
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# ------------------------------------------------------------------ Start form |
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if ($nforms) { |
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$r->print('<form name="lonhomework" method="post" enctype="multipart/form-data" action="'. |
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&Apache::lonenc::check_encrypt($requrl) |
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.'">'); |
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} |
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} elsif ($target eq 'tex') { |
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$r->print('\documentclass{article} |
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\newcommand{\keephidden}[1]{} |
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\usepackage[dvips]{graphicx} |
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\usepackage{epsfig} |
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\usepackage{calc} |
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\usepackage{longtable} |
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\begin{document}'); |
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} |
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# ----------------------------------------------------------------- Start table |
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if ($target eq 'tex') { |
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$r->print('\begin{longtable}INSERTTHEHEADOFLONGTABLE\endfirsthead\endhead '); |
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if ($number_of_columns le $lcm) {$number_of_columns=$lcm;}; |
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} else { |
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$r->print('<table width="100%" cols="'.$lcm.'" border="0">'); |
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} |
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# generate rows |
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for ($i=0;$i<=$#rows;$i++) { |
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if ($rows[$i]) { |
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unless ($target eq 'tex') { |
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$r->print("\n<tr>"); |
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} |
my @colcont=split(/\&/,$rows[$i]); |
my @colcont=split(/\&/,$rows[$i]); |
my $avespan=int($maxcols/($#colcont+1)); |
my $avespan=$lcm/($#colcont+1); |
my $lastspan=$maxcols-$avespan*$#colcont; |
for ($j=0;$j<=$#colcont;$j++) { |
for ($j=0;$j<$#colcont;$j++) { |
my $rid=$colcont[$j]; |
&cell($r,$avespan,$colcont[$j]); |
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my $metainfo =&get_buttons(\%hash,$rid).'<br />'; |
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unless ($target eq 'tex') { |
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$r->print('<td colspan="'.$avespan.'"'); |
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} |
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if ($cellemb{$rid} eq 'ssi') { |
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unless ($target eq 'tex') { |
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if ($ssibgcolor{$rid}) { |
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$r->print(' bgcolor="'. |
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$ssibgcolor{$rid}.'"'); |
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} |
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$r->print('>'.$metainfo.'<font'); |
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|
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if ($ssitext{$rid}) { |
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$r->print(' text="'.$ssitext{$rid}.'"'); |
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} |
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if ($ssilink{$rid}) { |
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$r->print(' link="'.$ssilink{$rid}.'"'); |
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} |
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if ($ssitext{$rid}) { |
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$r->print(' vlink="'.$ssivlink{$rid}.'"'); |
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} |
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if ($ssialink{$rid}) { |
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$r->print(' alink="'.$ssialink{$rid}.'"'); |
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} |
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$r->print('>'); |
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} |
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$r->print($ssibody{$rid}); |
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unless ($target eq 'tex') { |
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$r->print('</font>'); |
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} |
|
if ($env{'course.'. |
|
$env{'request.course.id'}. |
|
'.pageseparators'} eq 'yes') { |
|
unless($target eq 'tex') { |
|
$r->print('<hr />'); |
|
} |
|
} |
|
} elsif ($cellemb{$rid} eq 'img') { |
|
$r->print('>'.$metainfo.'<img src="'. |
|
$hash{'src_'.$rid}.'" />'); |
|
} elsif ($cellemb{$rid} eq 'emb') { |
|
$r->print('>'.$metainfo.'<embed src="'. |
|
$hash{'src_'.$rid}.'"></embed>'); |
|
} elsif (&Apache::lonnet::declutter($hash{'src_'.$rid}) !~/\.(sequence|page)$/) { |
|
$r->print($metainfo.'<b>'.$hash{'title_'.$rid}.'</b><br />'. |
|
&mt('It is recommended that you use an up-to-date virus scanner before handling this file.').'</p><p><table>'. |
|
&Apache::londocs::entryline(0,&mt("Click to download or use your browser's Save Link function"),'/'.&Apache::lonnet::declutter($hash{'src_'.$rid})).'</table></p><br />'); |
|
} |
|
unless ($target eq 'tex') { |
|
$r->print('</td>'); |
|
} else { |
|
for (my $incol=1;$incol<=$avespan;$incol++) { |
|
$r->print(' & '); |
|
} |
|
} |
} |
} |
&cell($r,$lastspan,$colcont[$#colcont]); |
unless ($target eq 'tex') { |
$r->print('</tr>'); |
$r->print('</tr>'); |
|
} else { |
|
$r->print('REMOVETHEHEADOFLONGTABLE\\\\'); |
|
} |
|
} |
} |
} |
$r->print("\n</table>"); |
unless ($target eq 'tex') { |
$r->print('</body></html>'); |
$r->print("\n</table>"); |
|
} else { |
|
$r->print('\end{longtable}\strut'); |
|
} |
|
# ---------------------------------------------------------------- Submit, etc. |
|
if ($nforms) { |
|
$r->print( |
|
'<input name="all_submit" value="Submit All" type="'. |
|
(($nforms>1)?'submit':'hidden').'"></input></form>'); |
|
} |
|
unless ($target eq 'tex') { |
|
$r->print(&Apache::loncommon::end_page({'discussion' |
|
=> 1,})); |
|
} else { |
|
$r->print('\end{document}'.$number_of_columns); |
|
} |
|
&Apache::lonnet::symblist($requrl,%symbhash); |
|
my ($map,$id,$url)=&Apache::lonnet::decode_symb(&Apache::lonnet::symbread()); |
|
&Apache::lonnet::symblist($map,'last_known'=>[$url,$id]); |
# -------------------------------------------------------------------- End page |
# -------------------------------------------------------------------- End page |
} |
} |
# ------------------------------------------------------------- End render page |
# ------------------------------------------------------------- End render page |
} else { |
} else { |
$r->content_type('text/html'); |
&Apache::loncommon::content_type($r,'text/html'); |
$r->send_http_header; |
$r->send_http_header; |
$r->print('<html><body>Page undefined.</body></html>'); |
&Apache::lonsequence::viewmap($r,$requrl); |
} |
} |
# ------------------------------------------------------------------ Untie hash |
# ------------------------------------------------------------------ Untie hash |
unless (untie(%hash)) { |
unless (untie(%hash)) { |
Line 190 sub handler {
|
Line 522 sub handler {
|
} |
} |
} |
} |
} |
} |
$ENV{'user.error.msg'}="$requrl:bre:1:1:Course not initialized"; |
&Apache::loncommon::content_type($r,'text/html'); |
return HTTP_NOT_ACCEPTABLE; |
$r->send_http_header; |
|
&Apache::lonsequence::viewmap($r,$requrl); |
|
return OK; |
|
} |
|
|
|
sub get_buttons { |
|
my ($hash,$rid) = @_; |
|
|
|
# which icons do we use? |
|
my $extension='png'; |
|
if ($env{'environment.icons'} eq 'classic') { $extension='gif'; } |
|
|
|
my $metainfo = ''; |
|
my $esrc=&Apache::lonnet::declutter($hash->{'src_'.$rid}); |
|
my ($mapid,$resid)=split(/\./,$rid); |
|
my $symb=&Apache::lonnet::encode_symb($hash->{'map_id_'.$mapid}, |
|
$resid, |
|
$hash->{'src_'.$rid}); |
|
if ($hash->{'encrypted_'.$rid}) { |
|
$symb=&Apache::lonenc::encrypted($symb); |
|
$esrc=&Apache::lonenc::encrypted($esrc); |
|
} |
|
if ($hash->{'src_'.$rid} !~ m-^/uploaded/- |
|
&& !$env{'request.enc'} |
|
&& ($env{'request.role.adv'} |
|
|| !$hash->{'encrypted_'.$rid})) { |
|
$metainfo .='<a name="'.&escape($symb).'" />'. |
|
'<a href="'.$hash->{'src_'.$rid}.'.meta'.'" target="LONcatInfo">'. |
|
'<img src="/adm/lonMisc/cat_button.'.$extension.'" class="LC_icon" />'. |
|
'</a>'; |
|
} |
|
$metainfo .= '<a href="/adm/evaluate?postdata='. |
|
&escape($esrc). |
|
'" target="LONcatInfo">'. |
|
'<img src="/adm/lonMisc/eval_button.'.$extension.'" class="LC_icon" />'. |
|
'</a>'; |
|
if (($hash->{'src_'.$rid}=~/\.(problem|exam|quiz|assess|survey|form)$/) && |
|
($hash->{'src_'.$rid} !~ m-^/uploaded/-)) { |
|
|
|
if (&Apache::lonnet::allowed('mgr',$env{'request.course.id'})) { |
|
$metainfo.= |
|
'<a href="/adm/grades?symb='.&escape($symb). |
|
# '&command=submission" target="LONcatInfo">'. |
|
'&command=submission">'. |
|
'<img src="/adm/lonMisc/subm_button.'.$extension.'" class="LC_icon" />'. |
|
'</a>'. |
|
'<a href="/adm/grades?symb='.&escape($symb). |
|
# '&command=gradingmenu" target="LONcatInfo">'. |
|
'&command=gradingmenu">'. |
|
'<img src="/adm/lonMisc/pgrd_button.'.$extension.'" class="LC_icon" />'. |
|
'</a>'; |
|
} |
|
if (&Apache::lonnet::allowed('opa',$env{'request.course.id'})) { |
|
$metainfo.= |
|
'<a href="/adm/parmset?symb='.&escape($symb). |
|
# '" target="LONcatInfo">'. |
|
'" >'. |
|
'<img src="/adm/lonMisc/pprm_button.'.$extension.'" class="LC_icon" />'. |
|
'</a>'; |
|
} |
|
} |
|
return $metainfo; |
} |
} |
|
|
1; |
1; |
__END__ |
__END__ |
|
|
|
=head1 NAME |
|
|
|
Apache::lonpage - Page Handler |
|
|
|
=head1 SYNOPSIS |
|
|
|
Invoked by /etc/httpd/conf/srm.conf: |
|
|
|
<LocationMatch "^/res/.*\.page$> |
|
SetHandler perl-script |
|
PerlHandler Apache::lonpage |
|
</LocationMatch> |
|
|
|
=head1 INTRODUCTION |
|
|
|
This module renders a .page resource. |
|
|
|
This is part of the LearningOnline Network with CAPA project |
|
described at http://www.lon-capa.org. |
|
|
|
=head1 HANDLER SUBROUTINE |
|
|
|
This routine is called by Apache and mod_perl. |
|
|
|
=over 4 |
|
|
|
=item * |
|
|
|
set document type for header only |
|
|
|
=item * |
|
|
|
tie db file |
|
|
|
=item * |
|
|
|
render page |
|
|
|
=item * |
|
|
|
add to symb list |
|
|
|
=item * |
|
|
|
page parms |
|
|
|
=item * |
|
|
|
Get SSI output, post parameters |
|
|
|
=item * |
|
|
|
SSI cell rendering |
|
|
|
=item * |
|
|
|
Deal with Applet codebases |
|
|
|
=item * |
|
|
|
Build page |
|
|
|
=item * |
|
|
|
send headers |
|
|
|
=item * |
|
|
|
start body |
|
|
|
=item * |
|
|
|
start form |
|
|
|
=item * |
|
|
|
start table |
|
|
|
=item * |
|
|
|
submit element, etc, render page, untie hash |
|
|
|
=back |
|
|
|
=head1 OTHER SUBROUTINES |
|
|
|
=over 4 |
|
|
|
=item * |
|
|
|
euclid() : Euclid's method for determining the greatest common denominator. |
|
|
|
=item * |
|
|
|
tracetable() : Build page table. |
|
|
|
=back |
|
|
|
=cut |
|
|
|
|
|
|