File:  [LON-CAPA] / loncom / interface / multidownload.pl
Revision 1.17: download - view: text, annotated - select for diffs
Fri Apr 27 22:16:22 2007 UTC (17 years ago) by banghart
Branches: MAIN
CVS tags: HEAD
	Do better.

    1: #!/usr/bin/perl
    2: # CGI-script to allow download of all essay submissions of 
    3: # multiple students.
    4: #
    5: # $Id: multidownload.pl,v 1.17 2007/04/27 22:16:22 banghart Exp $
    6: #
    7: # Copyright Michigan State University Board of Trustees
    8: #
    9: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
   10: #
   11: # LON-CAPA is free software; you can redistribute it and/or modify
   12: # it under the terms of the GNU General Public License as published by
   13: # the Free Software Foundation; either version 2 of the License, or
   14: # (at your option) any later version.
   15: #
   16: # LON-CAPA is distributed in the hope that it will be useful,
   17: # but WITHOUT ANY WARRANTY; without even the implied warranty of
   18: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   19: # GNU General Public License for more details.
   20: #
   21: # You should have received a copy of the GNU General Public License
   22: # along with LON-CAPA; if not, write to the Free Software
   23: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
   24: #
   25: # /home/httpd/html/adm/gpl.txt
   26: #
   27: # http://www.lon-capa.org/
   28: #
   29: 
   30: use lib '/home/httpd/lib/perl';
   31: use LONCAPA::loncgi;
   32: use File::Path;
   33: use File::Basename;
   34: use File::Copy;
   35: use IO::File;
   36: use Apache::lonhtmlcommon();
   37: use Apache::grades;
   38: use Apache::lonnavmaps;
   39: use Apache::lonnet;
   40: use Apache::loncommon();
   41: use Apache::lonlocal;
   42: use Apache::lonmsg();
   43: use Apache::lonnet;
   44: use LONCAPA::Enrollment;
   45: use strict;
   46: 
   47: $|=1;
   48: if (! &LONCAPA::loncgi::check_cookie_and_load_env()) {
   49:     print <<END;
   50: Content-type: text/html
   51: 
   52: <html>
   53: <head><title>Bad Cookie</title></head>
   54: <body>
   55: Your cookie information is incorrect.
   56: </body>
   57: </html>
   58: END
   59:     return;
   60: }
   61: &Apache::lonlocal::get_language_handle();
   62: &Apache::loncommon::content_type(undef,'text/html');
   63: my $identifier = $ENV{'QUERY_STRING'};
   64: my $unique_path = $identifier.time();
   65: print(&Apache::loncommon::start_page('Multiple Downloads'));
   66: 
   67: my $scope = $env{'request.course.id'};
   68: if ($env{'request.course.sec'}) {
   69:     $scope .= '/'.$env{'request.course.sec'};
   70: }
   71: if (&Apache::lonnet::allowed('vgr',$scope) eq 'F') {
   72:     my $symb = $env{'cgi.'.$identifier.'.symb'};
   73:     
   74:     my $navmap = Apache::lonnavmaps::navmap->new();
   75:     my $res = $navmap->getBySymb($symb);
   76:     &Apache::lonnet::logthis("$navmap is navmap");
   77: 
   78:     my ($zipout) = ($symb =~ /^.*\/(.+)\.problem$/);
   79:     $zipout =~ s/\s/_/g;
   80:     $zipout .= ".zip";
   81:     my $courseid = $env{'request.course.id'};
   82:     my @stuchecked = split(/\n/,$env{'cgi.'.$identifier.'.students'});
   83:     my @parts = split(/\n/,$env{'cgi.'.$identifier.'.parts'});
   84:     my ($partlist,$handgrade,$responseType) = &Apache::grades::response_type($symb);
   85:     my @part_response_id = &Apache::grades::flatten_responseType($responseType);
   86:     my $doc_zip_root = $Apache::lonnet::perlvar{'lonZipDir'};
   87: #    my ($partlist,$handgrade,$responseType) = &Apache::grades::response_type($symb);
   88:     my $uname = $env{'user.name'};
   89:     my $udom = $env{'user.domain'};
   90:     my $unique_user = $uname.":".$udom;
   91:     &mkpath($doc_zip_root."/zipdir/$unique_user/$unique_path",0,0700);
   92:     my $file_problem = 0;
   93:     foreach my $stu (@stuchecked) {
   94:         my %files_saved;
   95:         my ($stuname,$studom,$fullname) = split(/:/,$stu);
   96:         my %record = &Apache::lonnet::restore($symb,$courseid,$studom,$stuname);
   97:         foreach my $part (@part_response_id) {
   98:             my ($partid,$respid) = @{$part};
   99:             &mkpath($doc_zip_root."/zipdir/$unique_user/$unique_path/$stuname/part$partid/resp$respid",0,0700);
  100:             my $files = &Apache::grades::get_submitted_files($studom,$stuname,$partid,$respid,\%record);
  101:             foreach my $file (@$files) {
  102:                 my ($file_name_only) = ($file =~ /^.*\/(.+$)/);
  103:                 &Apache::lonnet::repcopy($file);
  104:                 my $source = &Apache::lonnet::filelocation("",$file);
  105:                 my $destination = "$doc_zip_root/zipdir/$unique_user/$unique_path/$stuname/part$partid/resp$respid/$file_name_only";
  106:                 if (exists($files_saved{$destination})) {
  107:                     # file has already been saved once
  108:                     my ($file_name,$file_ext) = ($destination =~ /(^.*)(\..+$)/);
  109:                     $destination = $file_name.$files_saved{$destination}.$file_ext;
  110:                     $files_saved{$destination} ++;
  111:                 }
  112:                 $files_saved{$destination}++;
  113:                 if (!&copy($source,$destination)) {
  114:                     if (!$file_problem) {
  115:                         print &mt("Unable to create: <br />");
  116:                         $file_problem = 1;
  117:                     }
  118:                     print ("$stuname/part$partid/resp$respid/$file_name_only <br />");
  119:                 }
  120:             }
  121:         }
  122:     }
  123:     &mkpath($doc_zip_root."/zipout/$unique_user",0,0700);
  124:     my $statement = "cd $doc_zip_root/zipdir/$unique_user/$unique_path\n";
  125:     $statement .= "zip -r $doc_zip_root/zipout/$unique_user/$zipout * > /dev/null";
  126:     system($statement);
  127:     $statement = "rm -rf $doc_zip_root/zipdir/$unique_user/$unique_path";
  128:     system($statement);
  129:     print('<a href="/zipspool/zipout/'.$unique_user.'/'.$zipout.'">'.
  130:             &mt("Click to download").'</a><br />');
  131: } else {
  132:     print(&mt('You are not authorized to download student submissions.'));
  133: }
  134: 1;
  135: __END__;

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