Return to multidownload.pl CVS log

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- xhtml validation.
- sanity checking.

    1: #!/usr/bin/perl
    2: # CGI-script to allow download of all essay submissions of 
    3: # multiple students.
    4: #
    5: # $Id: multidownload.pl,v 1.40 2017/11/03 18:08:54 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: $|=1;
   75: &Apache::lonlocal::get_language_handle();
   76: &Apache::loncommon::content_type(undef,'text/html');
   77: my ($nocookie,$identifier,$unique_path,$scope);
   78: if (! &LONCAPA::loncgi::check_cookie_and_load_env()) {
   79:     print(&LONCAPA::loncgi::missing_cookie_msg());
   80:     $nocookie = 1;
   81: }
   82: 
   83: unless ($nocookie) {
   84:     $scope = $env{'request.course.id'};
   85:     if ($env{'request.course.sec'}) {
   86:         $scope .= '/'.$env{'request.course.sec'};
   87:     }
   88:     if ($ENV{'QUERY_STRING'} =~ /^\d+_\d+_\d+$/) {
   89:         $identifier = $ENV{'QUERY_STRING'};
   90:         $unique_path = $identifier.time();
   91:     }
   92:     print(&Apache::loncommon::start_page('Multiple Downloads'));
   93: }
   94: if ($scope eq '') {
   95:     print(&mt('Invalid course context: you need to reselect your course role.'));
   96: } elsif ($identifier eq '') {
   97:     unless ($nocookie) {
   98:         if (&Apache::lonnet::allowed('vgr',$scope) eq 'F') {
   99:             print(&mt('Invalid query string; unable to download submissions.'));
  100:         } else {
  101:             print(&mt('You are not authorized to download student submissions.'));
  102:         }
  103:     }
  104: } elsif (&Apache::lonnet::allowed('vgr',$scope) eq 'F') {
  105:     my $symb = $env{'cgi.'.$identifier.'.symb'};
  106:     my $navmap = Apache::lonnavmaps::navmap->new();
  107:     my $res = $navmap->getBySymb($symb);
  108:     my $partlist = $res->parts();
  109:     my ($flat_part, $flat_resp) = &is_flat($partlist, $res);
  110:     my ($zipout) = ($symb =~ /^.*\/(.+)\.problem$/);
  111:     $zipout =~ s/\s/_/g;
  112:     $zipout .= "$identifier.zip";
  113:     my $courseid = $env{'request.course.id'};
  114:     my @stuchecked = split(/\n/,$env{'cgi.'.$identifier.'.students'});
  115:     my $number_of_students = scalar(@stuchecked);
  116:     my %prog_state=&Apache::lonhtmlcommon::Create_PrgWin('',$number_of_students);
  117:     my @parts = split(/\n/,$env{'cgi.'.$identifier.'.parts'});
  118:     my $doc_zip_root = $Apache::lonnet::perlvar{'lonZipDir'};
  119:     my $uname = $env{'user.name'};
  120:     my $udom = $env{'user.domain'};
  121:     my $unique_user = $uname.":".$udom;
  122:     my $manifest;
  123:     &mkpath($doc_zip_root."/zipdir/$unique_user/$unique_path",0,0700);
  124:     if (open(MANIFEST, ">$doc_zip_root/zipdir/$unique_user/$unique_path/manifest.txt")) {
  125:         $manifest = 1;
  126:         print MANIFEST (&mt("Zip file generated on [_1]",&Apache::lonlocal::locallocaltime(time()))."\n");
  127:         print MANIFEST (&mt("Course: [_1]",$env{"course.$courseid.description"})."\n");
  128:         print MANIFEST (&mt("Problem: [_1]",$res->compTitle)."\n");
  129:         print MANIFEST (&mt("Files contained in this zip:")."\n");
  130:     } else {
  131:         &Apache::lonnet::logthis("Problem making manifest");
  132:     }
  133:     my $file_problem = 0;
  134:     my $current_student = 0;
  135:     foreach my $stu (@stuchecked) {
  136:         $current_student ++;
  137:         &Apache::lonhtmlcommon::Update_PrgWin('',\%prog_state,&mt("Processing student [_1] of [_2]",$current_student,$number_of_students));
  138:         my %files_saved;
  139:         my ($stuname,$studom,$fullname) = split(/:/,$stu);
  140:         my %record = &Apache::lonnet::restore($symb,$courseid,$studom,$stuname);
  141:         my $port_url = '/uploaded/'.$studom.'/'.$stuname.'/portfolio';
  142:         if ($manifest) {
  143:             print MANIFEST ($fullname."\n");
  144:         }
  145:          
  146:         my $submission_count = 0;
  147:         foreach my $partid (@$partlist) {
  148:             my @ids = $res->responseIds($partid);
  149:             foreach my $respid (@ids) {
  150:                 my $part_resp_path = &get_part_resp_path($flat_part,$flat_resp, $partid, $respid);
  151:                 &mkpath($doc_zip_root."/zipdir/$unique_user/$unique_path/$stuname/$part_resp_path",0,0700);
  152:                 foreach my $origin ('portfiles','uploadedurl') {
  153:                     my @files;
  154:                     if ($record{"resource.$partid.$respid.$origin"} ne '') {
  155:                         if ($origin eq 'portfiles') {
  156:                             @files = (split(',',$record{"resource.$partid.$respid.$origin"}));
  157:                         } else {
  158:                             @files = ($record{"resource.$partid.$respid.$origin"});
  159:                         }
  160:                     }
  161:                     foreach my $file (@files) {
  162:                         if ($origin eq 'portfiles') { 
  163:                             $file = $port_url.$file;
  164:                         }
  165:                         my ($file_name_only) = ($file =~ m{.*/([^/]+)$});
  166:                         if ($manifest) {
  167:                             print MANIFEST ("\t$file_name_only (".&mt("Part [_1]",$partid).
  168:                                             ") (".&mt("Response [_1]",$respid).")"."\n");
  169:                         }
  170:                         $submission_count ++;
  171:                         &Apache::lonnet::repcopy($file);
  172:                         my $source = &Apache::lonnet::filelocation("",$file);
  173:                         my $destination = "$doc_zip_root/zipdir/$unique_user/$unique_path/$stuname$part_resp_path/$file_name_only";
  174:                         if (exists($files_saved{$destination})) {
  175:                             # file has already been saved once
  176:                             my ($file_name,$file_ext) = 
  177:                                 ($destination =~ /(^.*)(\..+$)/);
  178:                             $destination = $file_name.$files_saved{$destination}.$file_ext;
  179:                             $files_saved{$destination}++;
  180:                         }
  181:                         $files_saved{$destination}++;
  182:                         if (!&copy($source,$destination)) {
  183:                             if (!$file_problem) {
  184:                                 print('<br /><span class="LC_error">'.&mt("Unable to create: ")."</span><br />");
  185:                                 $file_problem = 1;
  186:                             }
  187:                             print('<span class="LC_filename">'."$stuname/part$partid/resp$respid/$file_name_only".'</span><br />');
  188:                         }
  189:                     }
  190:                 }
  191:             }
  192:         }
  193:         if ((!$submission_count) && ($manifest)) {
  194:             print MANIFEST ("\t".&mt("No Files Submitted")."\n");
  195:         }
  196:     }
  197:     
  198:     &mkpath($doc_zip_root."/zipout/$unique_user",0,0700);
  199:     my $statement;
  200:     if (! -e "$doc_zip_root/zipout/$unique_user/$zipout") {
  201:         $statement = "cd $doc_zip_root/zipdir/$unique_user/$unique_path\n";
  202:         $statement .= "zip -r $doc_zip_root/zipout/$unique_user/$zipout * > /dev/null";
  203:         system($statement);
  204:     } else {
  205:         # should happen only if user reloads page 
  206:         &Apache::lonnet::logthis("$zipout is already there");
  207:     }
  208:     $statement = "rm -rf $doc_zip_root/zipdir/$unique_user/$unique_path";
  209:     system($statement);
  210:     &Apache::lonhtmlcommon::Close_PrgWin('',\%prog_state);
  211:     print('<p><a href="/zipspool/zipout/'.$unique_user.'/'.$zipout.'">'.
  212:             &mt("Click to download").'</a></p><br />');
  213:     if ($manifest) {
  214:         close(MANIFEST);
  215:     }
  216: } else {
  217:     print(&mt('You are not authorized to download student submissions.'));
  218: }
  219: unless ($nocookie) {
  220:     print(&Apache::loncommon::end_page());
  221: }
  222: 1;
  223: __END__;