--- rat/lonratsrv.pm 2001/05/03 13:18:49 1.10
+++ rat/lonratsrv.pm 2011/10/25 19:23:20 1.42
@@ -1,301 +1,89 @@
# The LearningOnline Network with CAPA
# Server for RAT Maps
#
-# (Edit Handler for RAT Maps
-# (TeX Content Handler
+# $Id: lonratsrv.pm,v 1.42 2011/10/25 19:23:20 www Exp $
+#
+# Copyright Michigan State University Board of Trustees
+#
+# This file is part of the LearningOnline Network with CAPA (LON-CAPA).
+#
+# LON-CAPA is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# LON-CAPA is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with LON-CAPA; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+#
+# /home/httpd/html/adm/gpl.txt
+#
+# http://www.lon-capa.org/
#
-# 05/29/00,05/30 Gerd Kortemeyer)
-# 7/1 Gerd Kortemeyer)
-# 7/1,7/3,7/4,7/7,7/8,7/10,7/26,10/2 Gerd Kortemeyer
-# 4/30/2001 Scott Harrison
-# 5/3 Gerd Kortemeyer
+
package Apache::lonratsrv;
use strict;
use Apache::Constants qw(:common);
-use Apache::File;
-use HTML::TokeParser;
-
-
-# ------------------------------------------------------------- From RAT to XML
+use LONCAPA();
+use LONCAPA::map();
-sub qtescape {
- my $str=shift;
- $str=~s/\&\#58\;/\:/g;
- $str=~s/\&\#39\;/\'/g;
- $str=~s/\&\#44\;/\,/g;
- $str=~s/\"/\&\#34\;/g;
- return $str;
-}
-
-# ------------------------------------------------------------- From XML to RAT
-
-sub qtunescape {
- my $str=shift;
- $str=~s/\:/\&\#58\;/g;
- $str=~s/\'/\&\#39\;/g;
- $str=~s/\,/\&\#44\;/g;
- $str=~s/\"/\&\#34\;/g;
- return $str;
-}
-
-# --------------------------------------------------------- Loads map from disk
-
-sub loadmap {
- my ($fn,$errtext)=@_;
- my $outstr='';
- my @content=();
- my @obj=();
- my @links=();
- if (-e $fn) {
- {
- my $fh=Apache::File->new($fn);
- @content=<$fh>;
- }
- my $instr=join('',@content);
- my $parser = HTML::TokeParser->new(\$instr);
- my $token;
- my $graphmode=0;
-
- $fn=~/\.(\w+)$/;
- $outstr="mode<:>$1";
-
- while ($token = $parser->get_token) {
- if ($token->[0] eq 'S') {
- if ($token->[1] eq 'map') {
- $graphmode=($token->[2]->{'mode'} eq 'rat/graphical');
- } elsif ($token->[1] eq 'resource') {
-# -------------------------------------------------------------------- Resource
- $outstr.='<&>objcont';
- if ($token->[2]->{'id'}) {
- $outstr.='<:>'.$token->[2]->{'id'};
- if ($obj[$token->[2]->{'id'}]==1) {
- $errtext.='Error: multiple use of ID '.
- $token->[2]->{'id'}.'. ';
- }
- $obj[$token->[2]->{'id'}]=1;
- } else {
- my $i=1;
- while (($i<=$#obj) && ($obj[$i]!=0)) { $i++; }
- $outstr.='<:>'.$i;
- $obj[$i]=1;
- }
- $outstr.='<:>';
- $outstr.=qtunescape($token->[2]->{'title'}).":";
- $outstr.=qtunescape($token->[2]->{'src'}).":";
- if ($token->[2]->{'src'}=~/\/\//) {
- $outstr.='true:';
- } else {
- $outstr.='false:';
- }
- if ($token->[2]->{'type'}) {
- $outstr.=$token->[2]->{'type'}.':';
- } else {
- $outstr.='normal:';
- }
- $outstr.='res';
- } elsif ($token->[1] eq 'condition') {
-# ------------------------------------------------------------------- Condition
- $outstr.='<&>objcont';
- if ($token->[2]->{'id'}) {
- $outstr.='<:>'.$token->[2]->{'id'};
- if ($obj[$token->[2]->{'id'}]==1) {
- $errtext.='Error: multiple use of ID '.
- $token->[2]->{'id'}.'. ';
- }
- $obj[$token->[2]->{'id'}]=1;
- } else {
- my $i=1;
- while (($i<=$#obj) && ($obj[$i]!=0)) { $i++; }
- $outstr.='<:>'.$i;
- $obj[$i]=1;
- }
- $outstr.='<:>';
- $outstr.=qtunescape($token->[2]->{'value'}).':';
- if ($token->[2]->{'type'}) {
- $outstr.=$token->[2]->{'type'}.':';
- } else {
- $outstr.='normal:';
- }
- $outstr.='cond';
- } elsif ($token->[1] eq 'link') {
-# ----------------------------------------------------------------------- Links
- $outstr.='<&>objlinks';
-
- if ($token->[2]->{'index'}) {
- if ($links[$token->[2]->{'index'}]) {
- $errtext.='Error: multiple use of link index '.
- $token->[2]->{'index'}.'. ';
- }
- $outstr.='<:>'.$token->[2]->{'index'};
- $links[$token->[2]->{'index'}]=1;
- } else {
- my $i=1;
- while (($i<=$#links) && ($links[$i]==1)) { $i++; }
- $outstr.='<:>'.$i;
- $links[$i]=1;
- }
-
- $outstr.='<:>'.$token->[2]->{'from'}.
- ':'.$token->[2]->{'to'};
- if ($token->[2]->{'condition'}) {
- $outstr.=':'.$token->[2]->{'condition'};
- } else {
- $outstr.=':0';
- }
- } elsif ($graphmode) {
-# --------------------------------------------- All other tags (graphical only)
- $outstr.='<&>'.$token->[1];
- if (defined($token->[2]->{'index'})) {
- $outstr.='<:>'.$token->[2]->{'index'};
- if ($token->[1] eq 'obj') {
- $obj[$token->[2]->{'index'}]=2;
- }
- }
- $outstr.='<:>'.$token->[2]->{'value'};
- }
- }
- }
-
- } else {
- $errtext.='Map not loaded: The file does not exist. ';
- }
- return($outstr,$errtext);
-}
-
-
-# ----------------------------------------------------------- Saves map to disk
-
-sub savemap {
- my ($fn,$errtext)=@_;
- if (($fn=~/\.sequence$/) ||
- ($fn=~/\.page$/)) {
-
-# ------------------------------------------------------------- Deal with input
- my @tags=split(/<&>/,$ENV{'form.output'});
- my $outstr='';
- my $graphdef=0;
- if ($tags[0] eq 'graphdef<:>yes') {
- $outstr='<map mode="rat/graphical">'."\n";
- $graphdef=1;
- } else {
- $outstr="<map>\n";
- }
- map {
- my @parts=split(/<:>/,$_);
- if ($parts[0] eq 'objcont') {
- my @comp=split(/:/,$parts[$#parts]);
-# --------------------------------------------------------------- Logical input
- if ($comp[$#comp] eq 'res') {
- $comp[0]=qtescape($comp[0]);
- $comp[1]=qtescape($comp[1]);
- if ($comp[2] eq 'true') {
- if ($comp[1]!~/^http\:\/\//) {
- $comp[1]='http://'.$comp[1];
- }
- } else {
- if ($comp[1]=~/^http\:\/\//) {
- $comp[1]=~s/^http\:\/\/[^\/]*\//\//;
- }
- }
- $outstr.='<resource id="'.$parts[1].'" src="'
- .$comp[1].'"';
-
- if (($comp[3] ne '') && ($comp[3] ne 'normal')) {
- $outstr.=' type="'.$comp[3].'"';
- }
- if ($comp[0] ne '') {
- $outstr.=' title="'.$comp[0].'"';
- }
- $outstr.="></resource>\n";
- } elsif ($comp[$#comp] eq 'cond') {
- $outstr.='<condition id="'.$parts[1].'"';
- if (($comp[1] ne '') && ($comp[1] ne 'normal')) {
- $outstr.=' type="'.$comp[1].'"';
- }
- $outstr.=' value="'.qtescape($comp[0]).'"';
- $outstr.="></condition>\n";
- }
- } elsif ($parts[0] eq 'objlinks') {
- my @comp=split(/:/,$parts[$#parts]);
- $outstr.='<link';
- $outstr.=' from="'.$comp[0].'"';
- $outstr.=' to="'.$comp[1].'"';
- if (($comp[2] ne '') && ($comp[2]!=0)) {
- $outstr.=' condition="'.$comp[2].'"';
- }
- $outstr.=' index="'.$parts[1].'"';
- $outstr.="></link>\n";
- } elsif (($parts[0] ne '') && ($graphdef)) {
-# ------------------------------------------------------------- Graphical input
- $outstr.='<'.$parts[0];
- if ($#parts==2) {
- $outstr.=' index="'.$parts[1].'"';
- }
- $outstr.=' value="'.qtescape($parts[$#parts]).'"></'.
- $parts[0].">\n";
- }
- } @tags;
- $outstr.="</map>\n";
- {
- my $fh;
- if ($fh=Apache::File->new(">$fn")) {
- print $fh $outstr;
- $errtext.="Map saved as $fn. ";
- } else {
- $errtext.='Could not write file $fn. Map not saved. ';
- }
- }
- } else {
-# -------------------------------------------- Cannot write to that file, error
- $errtext.='Map not saved: The specified path does not exist. ';
- }
- return $errtext;
-}
# ================================================================ Main Handler
sub handler {
my $r=shift;
- $r->content_type('text/html');
+ &Apache::loncommon::content_type($r,'text/html');
$r->send_http_header;
return OK if $r->header_only;
my $url=$r->uri;
- $url=~/\/(\w+)\/ratserver$/;
+ $url=~m{/(\w+)/ratserver$};
my $mode=$1;
- $url=~s/\/loadonly\/ratserver$/\/save\/ratserver/;
+ $url=~s{/loadonly/ratserver$}{/save/ratserver};
my $fn=$r->filename;
my $errtext='';
+ my $infotext='';
my $outtext='';
if ($mode ne 'loadonly') {
- $errtext=&savemap($fn,$errtext);
+ ($errtext,$infotext)=&LONCAPA::map::savemap($fn,$errtext);
}
- ($outtext,$errtext)=&loadmap($fn,$errtext);
+ ($outtext,$errtext,$infotext)=&LONCAPA::map::loadmap($fn,$errtext,$infotext);
+
+ my $start_page =
+ &Apache::loncommon::start_page('Alert',undef,
+ {'only_body' => 1,
+ 'bgcolor' => '#FFFFFF',});
+ my $end_page =
+ &Apache::loncommon::end_page();
$r->print(<<ENDDOCUMENT);
-<html>
-<body bgcolor="#FFFFFF">
-<form name=storage method=post action="$url">
-<input type=hidden name=output value="$outtext">
+$start_page
+<form name="storage" method="post" action="$url">
+<input type="hidden" name="output" value="$outtext" />
</form>
-<script>
+<script type ="text/javascript">
parent.flag=1;
</script>
ENDDOCUMENT
- if ($errtext ne '') {
+ if (($errtext ne '') || ($infotext ne '')) {
$r->print(<<ENDSCRIPT);
-<script>
- alert("$errtext");
+<script type="text/javascript">
+ alert("$infotext $errtext");
</script>
ENDSCRIPT
}
- $r->print("</body>\n</html>\n");
+ $r->print($end_page);
return OK;
}
@@ -304,8 +92,20 @@ ENDSCRIPT
__END__
+=head1 NAME
+Apache::lonratsrv
+=head1 SYNOPSIS
+Handler that takes output from RAT and stores
+it on disk. Handles the upper hidden frame of
+the added window that comes up in RAT. (3
+frames come up in RAT server, code, and
+output. This module handles server
+connection.)
+This is part of the LearningOnline Network with CAPA project
+described at http://www.lon-capa.org.
+=cut