--- loncom/interface/multidownload.pl	2007/03/30 22:57:39	1.1
+++ loncom/interface/multidownload.pl	2007/04/26 23:07:34	1.15
@@ -2,7 +2,7 @@
 # CGI-script to allow download of all essay submissions of 
 # multiple students.
 #
-# $Id: multidownload.pl,v 1.1 2007/03/30 22:57:39 banghart Exp $
+# $Id: multidownload.pl,v 1.15 2007/04/26 23:07:34 banghart Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -33,18 +33,16 @@ use File::Path;
 use File::Basename;
 use File::Copy;
 use IO::File;
-use Image::Magick;
 use Apache::lonhtmlcommon();
 use Apache::lonnet;
 use Apache::grades;
 use Apache::loncommon();
 use Apache::lonlocal;
 use Apache::lonmsg();
+use Apache::lonnet;
 use LONCAPA::Enrollment;
-
 use strict;
 
-
 $|=1;
 if (! &LONCAPA::loncgi::check_cookie_and_load_env()) {
     print <<END;
@@ -62,28 +60,74 @@ END
 &Apache::lonlocal::get_language_handle();
 &Apache::loncommon::content_type(undef,'text/html');
 my $identifier = $ENV{'QUERY_STRING'};
+my $unique_path = $identifier.time();
 print(&Apache::loncommon::start_page('Multiple Downloads'));
-my $symb = $env{'cgi.'.$identifier.'.symb'};
-my $courseid = $env{'cgi.'.$identifier.'.courseid'};
-my @stuchecked = split /\n/,$env{'cgi.'.$identifier.'.students'};
-my @parts = split /\n/,$env{'cgi.'.$identifier.'.parts'};
-my ($partlist,$handgrade,$responseType) = &Apache::grades::response_type($symb);
-my @part_response_id = &Apache::grades::flatten_responseType($responseType);
-print "number of parts is: ".@parts."<br />";
-my ($partlist,$handgrade,$responseType) = &Apache::grades::response_type($symb);
-print "in the CGI script <br />";
-foreach (@stuchecked) {
-    my ($uname,$udom,$fullname) = split(/:/);
-    my %record = &Apache::lonnet::restore($symb,$courseid,$udom,$uname);
-    print $uname."<br />";
-    foreach my $part(@part_response_id) {
-        print $part."<br />";
-        my ($partid,$respid) = @{ $part };
-        my $files = &Apache::grades::get_submitted_files($udom,$uname,$partid,$respid,\%record);
-        foreach my $file(@$files) {
-            print $file."<br />";
+
+my $scope = $env{'request.course.id'};
+if ($env{'request.course.sec'}) {
+    $scope .= '/'.$env{'request.course.sec'};
+}
+if (&Apache::lonnet::allowed('vgr',$scope) eq 'F') {
+    my $symb = $env{'cgi.'.$identifier.'.symb'};
+    $symb =~ /^.*\/(.+)\.problem$/;
+    my $zipout = $1.".zip";
+    $zipout =~ s/\s/_/g;
+    my $courseid = $env{'request.course.id'};
+    my @stuchecked = split(/\n/,$env{'cgi.'.$identifier.'.students'});
+    my @parts = split(/\n/,$env{'cgi.'.$identifier.'.parts'});
+    my ($partlist,$handgrade,$responseType) = &Apache::grades::response_type($symb);
+    my @part_response_id = &Apache::grades::flatten_responseType($responseType);
+    my $doc_zip_root = $Apache::lonnet::perlvar{'lonZipDir'};
+    my ($partlist,$handgrade,$responseType) = &Apache::grades::response_type($symb);
+    my $uname = $env{'user.name'};
+    my $udom = $env{'user.domain'};
+    &mkpath($doc_zip_root."/zipdir/$uname$udom/$unique_path",0,0700);
+    my $file_problem = 0;
+    foreach my $stu (@stuchecked) {
+        my %files_saved;
+        my $file_increment = 2;
+        my ($stuname,$studom,$fullname) = split(/:/,$stu);
+        my %record = &Apache::lonnet::restore($symb,$courseid,$studom,$stuname);
+        foreach my $part (@part_response_id) {
+            my ($partid,$respid) = @{$part};
+            &mkpath($doc_zip_root."/zipdir/$uname$udom/$unique_path/$stuname/part$partid/resp$respid",0,0700);
+            my $files = &Apache::grades::get_submitted_files($studom,$stuname,$partid,$respid,\%record);
+            foreach my $file (@$files) {
+                $file =~ /(^.*\/)(.+$)/;
+                my $file_name_only = $2;
+                &Apache::lonnet::repcopy($file);
+                my $source = &Apache::lonnet::filelocation("",$file);
+                my $destination = "$doc_zip_root/zipdir/$uname$udom/$unique_path/$stuname/part$partid/resp$respid/$file_name_only";
+                if (exists($files_saved{$destination})) {
+                    # file has already been saved once
+                    &Apache::lonnet::logthis("found duplicate file name");
+                    &Apache::lonnet::logthis("destination was $destination");
+                    $destination =~ /(^.*)(\..+$)/;
+                    $destination = $1.$file_increment.$2;
+                    &Apache::lonnet::logthis("destination is $destination");
+                    $file_increment ++;
+                }
+                $files_saved{$destination} = 1;
+                if (!&copy($source,$destination)) {
+                    if (!$file_problem) {
+                        print &mt("Unable to create: <br />");
+                        $file_problem = 1;
+                    }
+                    print ("$stuname/part$partid/resp$respid/$file_name_only <br />");
+                }
+            }
         }
     }
+    &mkpath($doc_zip_root."/zipout/$uname$udom",0,0700);
+    my $statement = "cd $doc_zip_root/zipdir/$uname$udom/$unique_path\n";
+    $statement .= "zip -r $doc_zip_root/zipout/$uname$udom/$zipout * > /dev/null";
+    system($statement);
+    $statement = "rm -rf $doc_zip_root/zipdir/$uname$udom/$unique_path";
+    system($statement);
+    print('<a href="/zipspool/zipout/'.$uname.$udom.'/'.$zipout.'">'.
+            &mt("Click to download").'</a><br />');
+} else {
+    print(&mt('You are not authorized to download student submissions.'));
 }
-
-die;
+1;
+__END__;