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- Missing cookie message generated from &LONCAPA::loncgi::missing_cookie_msg().
- zip file can contain directly uploaded files as well as files submitted from a portfolio.
- CSS: LC_error and LC_filename

    1: #!/usr/bin/perl
    2: # CGI-script to allow download of all essay submissions of 
    3: # multiple students.
    4: #
    5: # $Id: multidownload.pl,v 1.38 2008/12/30 23:18:24 raeburn Exp $
    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: use lib '/home/httpd/lib/perl';
   30: use LONCAPA::loncgi;
   31: use File::Path;
   32: use File::Basename;
   33: use File::Copy;
   34: use Apache::lonhtmlcommon();
   35: use Apache::lonnavmaps();
   36: use Apache::loncommon();
   37: use Apache::lonlocal;
   38: use Apache::lonmsg();
   39: use Apache::lonnet;
   40: use LONCAPA::Enrollment;
   41: use strict;
   42: 
   43: sub is_flat {
   44:     my ($partlist, $res) = @_;
   45:     my $flat_part = 1;
   46:     my $flat_resp = 1;
   47:     if (scalar(@$partlist) > 1) {
   48:         $flat_part = 0;
   49:     }
   50:     foreach my $partid (@$partlist) {
   51:         my @ids = $res->responseIds($partid);
   52:         if (scalar(@ids) > 1 ) {
   53:             $flat_resp = 0;
   54:         }
   55:     }
   56:     return ($flat_part, $flat_resp);
   57: }
   58: 
   59: 
   60: sub get_part_resp_path {
   61:     my ($flat_part, $flat_resp, $part_id, $resp_id) = @_;
   62:     my $part_resp_path = "";
   63:     if (!$flat_part) {
   64:         $part_resp_path = "part$part_id/";
   65:     } 
   66:     if (!$flat_resp) {
   67:         $part_resp_path .= "resp$resp_id/";
   68:     }
   69:     $part_resp_path =~ s/\/^//; 
   70:     return('/'.$part_resp_path);
   71: }
   72: 
   73: 
   74: $|=1;
   75: &Apache::lonlocal::get_language_handle();
   76: &Apache::loncommon::content_type(undef,'text/html');
   77: if (! &LONCAPA::loncgi::check_cookie_and_load_env()) {
   78:     print(&LONCAPA::loncgi::missing_cookie_msg());
   79:     return;
   80: }
   81: 
   82: my $identifier = $ENV{'QUERY_STRING'};
   83: my $unique_path = $identifier.time();
   84: print(&Apache::loncommon::start_page('Multiple Downloads'));
   85:     
   86: 
   87: my $scope = $env{'request.course.id'};
   88: if ($env{'request.course.sec'}) {
   89:     $scope .= '/'.$env{'request.course.sec'};
   90: }
   91: if (&Apache::lonnet::allowed('vgr',$scope) eq 'F') {
   92:     my $symb = $env{'cgi.'.$identifier.'.symb'};
   93:     my $navmap = Apache::lonnavmaps::navmap->new();
   94:     my $res = $navmap->getBySymb($symb);
   95:     my $partlist = $res->parts();
   96:     my ($flat_part, $flat_resp) = &is_flat($partlist, $res);
   97:     my ($zipout) = ($symb =~ /^.*\/(.+)\.problem$/);
   98:     $zipout =~ s/\s/_/g;
   99:     $zipout .= "$identifier.zip";
  100:     my $courseid = $env{'request.course.id'};
  101:     my @stuchecked = split(/\n/,$env{'cgi.'.$identifier.'.students'});
  102:     my $number_of_students = scalar(@stuchecked);
  103:     my %prog_state=&Apache::lonhtmlcommon::Create_PrgWin('','Processing Status',
  104:                                                     'Preparing Zip File',$number_of_students,'inline','80');
  105:     my @parts = split(/\n/,$env{'cgi.'.$identifier.'.parts'});
  106:     my $doc_zip_root = $Apache::lonnet::perlvar{'lonZipDir'};
  107:     my $uname = $env{'user.name'};
  108:     my $udom = $env{'user.domain'};
  109:     my $unique_user = $uname.":".$udom;
  110:     &mkpath($doc_zip_root."/zipdir/$unique_user/$unique_path",0,0700);
  111:     if (!open(MANIFEST, ">$doc_zip_root/zipdir/$unique_user/$unique_path/manifest.txt")) {
  112:         &Apache::lonnet::logthis("Problem making manifest");
  113:     }
  114:     print MANIFEST (&mt("Zip file generated on [_1]",&Apache::lonlocal::locallocaltime(time()))."\n");
  115:     print MANIFEST (&mt("Course: [_1]",$env{"course.$courseid.description"})."\n");
  116:     print MANIFEST (&mt("Problem: [_1]",$res->compTitle)."\n");
  117:     print MANIFEST (&mt("Files contained in this zip:")."\n");
  118:     my $file_problem = 0;
  119:     my $current_student = 0;
  120:     foreach my $stu (@stuchecked) {
  121:         $current_student ++;
  122:         &Apache::lonhtmlcommon::Update_PrgWin('',\%prog_state,"Processing student $current_student of $number_of_students");
  123:         my %files_saved;
  124:         my ($stuname,$studom,$fullname) = split(/:/,$stu);
  125:         my %record = &Apache::lonnet::restore($symb,$courseid,$studom,$stuname);
  126:         my $port_url = '/uploaded/'.$studom.'/'.$stuname.'/portfolio';
  127:         print MANIFEST ($fullname."\n");
  128:          
  129:         my $submission_count = 0;
  130:         foreach my $partid (@$partlist) {
  131:             my @ids = $res->responseIds($partid);
  132:             foreach my $respid (@ids) {
  133:                 my $part_resp_path = &get_part_resp_path($flat_part,$flat_resp, $partid, $respid);
  134:                 &mkpath($doc_zip_root."/zipdir/$unique_user/$unique_path/$stuname/$part_resp_path",0,0700);
  135:                 foreach my $origin ('portfiles','uploadedurl') {
  136:                     my @files;
  137:                     if ($record{"resource.$partid.$respid.$origin"} ne '') {
  138:                         if ($origin eq 'portfiles') {
  139:                             @files = (split(',',$record{"resource.$partid.$respid.$origin"}));
  140:                         } else {
  141:                             @files = ($record{"resource.$partid.$respid.$origin"});
  142:                         }
  143:                     }
  144:                     foreach my $file (@files) {
  145:                         if ($origin eq 'portfiles') { 
  146:                             $file = $port_url.$file;
  147:                         }
  148:                         my ($file_name_only) = ($file =~ m{.*/([^/]+)$});
  149:                         print MANIFEST ("\t$file_name_only (".&mt("Part [_1]",$partid).
  150:                                         ") (".&mt("Response [_1]",$respid).")"."\n");
  151:                         $submission_count ++;
  152:                         &Apache::lonnet::repcopy($file);
  153:                         my $source = &Apache::lonnet::filelocation("",$file);
  154:                         my $destination = "$doc_zip_root/zipdir/$unique_user/$unique_path/$stuname$part_resp_path/$file_name_only";
  155:                         if (exists($files_saved{$destination})) {
  156:                             # file has already been saved once
  157:                             my ($file_name,$file_ext) = 
  158:                                 ($destination =~ /(^.*)(\..+$)/);
  159:                             $destination = $file_name.$files_saved{$destination}.$file_ext;
  160:                             $files_saved{$destination}++;
  161:                         }
  162:                         $files_saved{$destination}++;
  163:                         if (!&copy($source,$destination)) {
  164:                             if (!$file_problem) {
  165:                                 print('<br /><span class="LC_error">'.&mt("Unable to create: ")."</span><br />");
  166:                                 $file_problem = 1;
  167:                             }
  168:                             print('<span class="LC_filename">'."$stuname/part$partid/resp$respid/$file_name_only".'</span><br />');
  169:                         }
  170:                     }
  171:                 }
  172:             }
  173:         }
  174:         if (!$submission_count) {
  175:             print MANIFEST ("\t".&mt("No Files Submitted")."\n");
  176:         }
  177:     }
  178:     
  179:     &mkpath($doc_zip_root."/zipout/$unique_user",0,0700);
  180:     my $statement;
  181:     if (! -e "$doc_zip_root/zipout/$unique_user/$zipout") {
  182:         $statement = "cd $doc_zip_root/zipdir/$unique_user/$unique_path\n";
  183:         $statement .= "zip -r $doc_zip_root/zipout/$unique_user/$zipout * > /dev/null";
  184:         system($statement);
  185:     } else {
  186:         # should happen only if user reloads page 
  187:         &Apache::lonnet::logthis("$zipout is already there");
  188:     }
  189:     $statement = "rm -rf $doc_zip_root/zipdir/$unique_user/$unique_path";
  190:     system($statement);
  191:     &Apache::lonhtmlcommon::Close_PrgWin('',\%prog_state);
  192:     print('<p><a href="/zipspool/zipout/'.$unique_user.'/'.$zipout.'">'.
  193:             &mt("Click to download").'</a></p><br />');
  194:     close(MANIFEST);
  195: } else {
  196:     print(&mt('You are not authorized to download student submissions.'));
  197: }
  198: 1;
  199: __END__;