Return to daxeopen.pm CVS log

Up to [LON-CAPA] / loncom / homework

Annotation of loncom/homework/daxeopen.pm, revision 1.4

1.1       damieng     1: # The LearningOnline Network
                      2: # Opening converted problems and directory listings for Daxe
                      3: #
1.4     ! damieng     4: # $Id: daxeopen.pm,v 1.3 2015/12/15 15:00:58 damieng Exp $
1.1       damieng     5: #
                      6: # Copyright Michigan State University Board of Trustees
                      7: #
                      8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
                      9: #
                     10: # LON-CAPA is free software; you can redistribute it and/or modify
                     11: # it under the terms of the GNU General Public License as published by
                     12: # the Free Software Foundation; either version 2 of the License, or
                     13: # (at your option) any later version.
                     14: #
                     15: # LON-CAPA is distributed in the hope that it will be useful,
                     16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
                     17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
                     18: # GNU General Public License for more details.
                     19: #
                     20: # You should have received a copy of the GNU General Public License
                     21: # along with LON-CAPA; if not, write to the Free Software
                     22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
                     23: #
                     24: # /home/httpd/html/adm/gpl.txt
                     25: #
                     26: # http://www.lon-capa.org/
                     27: #
                     28: ###
                     29: 
                     30: package Apache::daxeopen;
                     31: 
                     32: use Apache::Constants;
                     33: use DateTime;
                     34: use Try::Tiny;
                     35: use File::stat;
                     36: use Fcntl ':mode';
                     37: 
                     38: use Apache::loncommon;
                     39: use Apache::lonnet;
                     40: use Apache::pre_xml;
                     41: use Apache::html_to_xml;
                     42: use Apache::post_xml;
                     43: 
                     44: 
                     45: sub handler {
                     46:     my $request = shift;
                     47:     my $uri = $request->uri;
                     48:     $uri =~ s/^\/daxeopen//;
                     49:     &Apache::loncommon::no_cache($request);
                     50:     if ($uri =~ /\/$/) {
                     51:         return directory_listing($uri, $request);
1.4     ! damieng    52:     } elsif ($uri =~ /\.(task|problem|exam|quiz|assess|survey|library|xml|html|htm|xhtml|xhtm)$/) {
1.1       damieng    53:         return convert_problem($uri, $request);
                     54:     } else {
                     55:         # Apache should send other files directly
1.2       damieng    56:         $request->status(406);
                     57:         return OK;
1.1       damieng    58:     }
                     59: }
                     60: 
                     61: sub convert_problem {
                     62:     my ($uri, $request) = @_;
                     63:     
                     64:     my $file = &Apache::lonnet::filelocation('', $uri);
                     65:     &Apache::lonnet::repcopy($file);
                     66:     if (! -e $file) {
1.2       damieng    67:         $request->status(404);
                     68:         return OK;
1.1       damieng    69:     }
                     70:     try {
                     71:         my $warnings = 0; # no warning printed
                     72:         my $textref = &Apache::pre_xml::pre_xml($file, $warnings);
1.4     ! damieng    73:         my $case_sensitive;
        !            74:         if ($uri =~ /\.(task)$/) {
        !            75:           $case_sensitive = 1;
        !            76:         } else {
        !            77:           $case_sensitive = 0;
        !            78:         }
        !            79:         $textref = &Apache::html_to_xml::html_to_xml($textref, $warnings, $case_sensitive);
1.3       damieng    80:         my $text = &Apache::post_xml::post_xml($textref, $file, $perlvar{'lonDocRoot'}, $warnings);
1.1       damieng    81:         &Apache::loncommon::content_type($request, 'text/xml', 'utf-8');
                     82:         $request->print($text);
                     83:         return OK;
                     84:     } catch {
1.2       damieng    85:         $request->content_type('text/plain');
                     86:         $request->print("convert failed for $file: $_");
                     87:         $request->status(406);
                     88:         return OK;
1.1       damieng    89:     };
                     90: }
                     91: 
                     92: sub directory_listing {
                     93:     my ($uri, $request) = @_;
                     94:     my $dirpath = &Apache::lonnet::filelocation('', $uri);
                     95:     if (! -e $dirpath) {
1.2       damieng    96:         $request->status(404);
                     97:         return OK;
1.1       damieng    98:     }
                     99:     $dirpath =~ s/\/$//;
                    100:     opendir my $dir, $dirpath or die "Cannot open directory: $dirpath";
                    101:     my @files = readdir $dir;
                    102:     closedir $dir;
                    103:     my $res = '<?xml version="1.0" encoding="UTF-8"?>'."\n";
                    104:     my $dirname = $dirpath;
                    105:     $dirname =~ s/^.*\/([^\/]*)$/$1/;
                    106:     $res .= "<directory name=\"$dirname\">\n";
                    107:     foreach my $name (@files) {
                    108:         if ($name eq '.' || $name eq '..') {
                    109:             next;
                    110:         }
                    111:         if ($name =~ /\.(bak|log|meta|save)$/) {
                    112:             next;
                    113:         }
                    114:         $sb = stat($dirpath.'/'.$name);
                    115:         my $mode = $sb->mode;
                    116:         if (S_ISDIR($mode)) {
                    117:             $res .= "<directory name=\"$name\"/>\n";
                    118:         } else {
                    119:             $res .= "<file name=\"$name\"";
                    120:             my $size = $sb->size; # total size of file, in bytes
                    121:             $res .= " size=\"$size\"";
                    122:             my $mtime = $sb->mtime; # last modify time in seconds since the epoch
                    123:             my $dt = DateTime->from_epoch(epoch => $mtime);
                    124:             my $modified = $dt->iso8601().'Z';
                    125:             $res .= " modified=\"$modified\"";
                    126:             $res .= "/>\n";
                    127:         }
                    128:     }
                    129:     $res .= "</directory>\n";
                    130:     &Apache::loncommon::content_type($request, 'text/xml', 'utf-8');
                    131:     $request->print($res);
                    132:     return OK;
                    133: }
                    134: 
                    135: 1;
                    136: __END__