1: #!/usr/bin/perl
2: # CGI-script to allow download of all essay submissions of
3: # multiple students.
4: #
5: # $Id: multidownload.pl,v 1.27 2007/05/21 22:00:29 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::lonnavmaps;
38: use Apache::lonnet;
39: use Apache::loncommon();
40: use Apache::lonlocal;
41: use Apache::lonmsg();
42: use Apache::lonnet;
43: use LONCAPA::Enrollment;
44: use strict;
45:
46: sub is_flat {
47: my ($partlist, $res) = @_;
48: my $flat_part = 1;
49: my $flat_resp = 1;
50: if (scalar(@$partlist) > 1) {
51: $flat_part = 0;
52: }
53: foreach my $partid (@$partlist) {
54: my @ids = $res->responseIds($partid);
55: if (scalar(@ids) > 1 ) {
56: $flat_resp = 0;
57: }
58: }
59: return ($flat_part, $flat_resp);
60: }
61: sub get_part_resp_path {
62: my ($flat_part, $flat_resp, $part_id, $resp_id) = @_;
63: my $part_resp_path = "";
64: if (!$flat_part) {
65: $part_resp_path = "part$part_id/";
66: }
67: if (!$flat_resp) {
68: $part_resp_path .= "resp$resp_id/";
69: }
70: $part_resp_path =~ s/\/^//;
71: return('/'.$part_resp_path);
72: }
73: $|=1;
74: if (! &LONCAPA::loncgi::check_cookie_and_load_env()) {
75: print <<END;
76: Content-type: text/html
77:
78: <html>
79: <head><title>Bad Cookie</title></head>
80: <body>
81: Your cookie information is incorrect.
82: </body>
83: </html>
84: END
85: return;
86: }
87: &Apache::lonlocal::get_language_handle();
88: &Apache::loncommon::content_type(undef,'text/html');
89: my $identifier = $ENV{'QUERY_STRING'};
90: my $unique_path = $identifier.time();
91: print(&Apache::loncommon::start_page('Multiple Downloads'));
92:
93:
94: my $scope = $env{'request.course.id'};
95: if ($env{'request.course.sec'}) {
96: $scope .= '/'.$env{'request.course.sec'};
97: }
98: if (&Apache::lonnet::allowed('vgr',$scope) eq 'F') {
99: my $symb = $env{'cgi.'.$identifier.'.symb'};
100: my $navmap = Apache::lonnavmaps::navmap->new();
101: my $res = $navmap->getBySymb($symb);
102: my $partlist = $res->parts();
103: my ($flat_part, $flat_resp) = &is_flat($partlist, $res);
104: my ($zipout) = ($symb =~ /^.*\/(.+)\.problem$/);
105: $zipout =~ s/\s/_/g;
106: $zipout .= "$identifier.zip";
107: my $courseid = $env{'request.course.id'};
108: my @stuchecked = split(/\n/,$env{'cgi.'.$identifier.'.students'});
109: my $number_of_students = scalar(@stuchecked);
110: my %prog_state=&Apache::lonhtmlcommon::Create_PrgWin('','Processing Status',
111: 'Preparing Zip File',$number_of_students,'inline','80');
112: my @parts = split(/\n/,$env{'cgi.'.$identifier.'.parts'});
113: my $doc_zip_root = $Apache::lonnet::perlvar{'lonZipDir'};
114: my $uname = $env{'user.name'};
115: my $udom = $env{'user.domain'};
116: my $unique_user = $uname.":".$udom;
117: &mkpath($doc_zip_root."/zipdir/$unique_user/$unique_path",0,0700);
118: if (!open(MANIFEST, ">$doc_zip_root/zipdir/$unique_user/$unique_path/manifest.txt")) {
119: &Apache::lonnet::logthis("Problem making manifest");
120: }
121: print MANIFEST &mt("Files contained in this zip:\n");
122: my $file_problem = 0;
123: my $current_student = 0;
124: foreach my $stu (@stuchecked) {
125: $current_student ++;
126: &Apache::lonhtmlcommon::Update_PrgWin('',\%prog_state,"Processing student $current_student of $number_of_students");
127: my %files_saved;
128: my ($stuname,$studom,$fullname) = split(/:/,$stu);
129: my %record = &Apache::lonnet::restore($symb,$courseid,$studom,$stuname);
130: my $file_url = '/uploaded/'.$studom.'/'.$stuname.'/portfolio';
131: print MANIFEST $fullname."\n";
132:
133: foreach my $partid (@$partlist) {
134: my @ids = $res->responseIds($partid);
135: foreach my $respid(@ids) {
136: my $part_resp_path = &get_part_resp_path($flat_part,$flat_resp, $partid, $respid);
137: &mkpath($doc_zip_root."/zipdir/$unique_user/$unique_path/$stuname/$part_resp_path",0,0700);
138: foreach my $file (split(',',$record{"resource.$partid.$respid.portfiles"})) {
139: $file = $file_url.$file;
140: my ($file_name_only) = ($file =~ /^.*\/(.+$)/);
141: print MANIFEST "\t$file_name_only \n";
142: &Apache::lonnet::repcopy($file);
143: my $source = &Apache::lonnet::filelocation("",$file);
144:
145: my $destination = "$doc_zip_root/zipdir/$unique_user/$unique_path/$stuname$part_resp_path/$file_name_only";
146: if (exists($files_saved{$destination})) {
147: # file has already been saved once
148: my ($file_name,$file_ext) = ($destination =~ /(^.*)(\..+$)/);
149: $destination = $file_name.$files_saved{$destination}.$file_ext;
150: $files_saved{$destination} ++;
151: }
152: $files_saved{$destination}++;
153: if (!©($source,$destination)) {
154: if (!$file_problem) {
155: print &mt("Unable to create: <br />");
156: $file_problem = 1;
157: }
158: print ("$stuname/part$partid/resp$respid/$file_name_only <br />");
159: }
160: }
161: }
162: }
163: }
164:
165: &mkpath($doc_zip_root."/zipout/$unique_user",0,0700);
166: my $statement;
167: if (! -e "$doc_zip_root/zipout/$unique_user/$zipout") {
168: $statement = "cd $doc_zip_root/zipdir/$unique_user/$unique_path\n";
169: $statement .= "zip -r $doc_zip_root/zipout/$unique_user/$zipout * > /dev/null";
170: system($statement);
171: } else {
172: # should happen only if user reloads page
173: &Apache::lonnet::logthis("$zipout is already there");
174: }
175: $statement = "rm -rf $doc_zip_root/zipdir/$unique_user/$unique_path";
176: system($statement);
177: &Apache::lonhtmlcommon::Close_PrgWin('',\%prog_state);
178: print('<p><a href="/zipspool/zipout/'.$unique_user.'/'.$zipout.'">'.
179: &mt("Click to download").'</a></p><br />');
180: close MANIFEST;
181: } else {
182: print(&mt('You are not authorized to download student submissions.'));
183: }
184: 1;
185: __END__;
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