Annotation of loncom/homework/daxesave.pm, revision 1.9
1.1 damieng 1: # The LearningOnline Network
2: # Convert and save a problem from Daxe.
3: #
1.9 ! raeburn 4: # $Id: daxesave.pm,v 1.8 2023/08/29 01:43:35 raeburn Exp $
1.1 damieng 5: #
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:
30: package Apache::daxesave;
1.6 raeburn 31: use strict;
1.1 damieng 32:
1.6 raeburn 33: use Apache::Constants qw(:common);
1.1 damieng 34: use Apache::lonnet;
35: use Try::Tiny;
36: use File::Copy;
37:
38: use Apache::lonacc;
39: use Apache::loncommon;
40: use Apache::xml_to_loncapa;
41:
42: sub handler {
43: my $request = shift;
44:
1.2 damieng 45: $request->content_type('text/plain');
1.9 ! raeburn 46:
! 47: my %editors = &Apache::loncommon::permitted_editors();
! 48: unless ($editors{'daxe'}) {
! 49: $request->content_type('text/plain');
! 50: $request->print(&mt('Daxe editor not enabled for this Authoring Space'));
! 51: return OK;
! 52: }
! 53:
1.3 damieng 54: # path should be in the form "/daxeopen/priv/..."
1.7 raeburn 55: # or "/daxeopen/uploaded/$cdom/$cnum/(docs|supplemental)/(default|\d+)/\d+/"
1.3 damieng 56: my $path = $env{'form.path'};
1.1 damieng 57: $path =~ s/^\/daxeopen//;
58:
1.3 damieng 59: my $allowed = 0;
1.7 raeburn 60: my ($cdom,$cnum);
61: if ($path =~ m{^/priv/}) {
1.3 damieng 62: my ($ownername,$ownerdom,$ownerhome) =
1.7 raeburn 63: &Apache::lonnet::constructaccess($path);
1.3 damieng 64: if (($ownername ne '') && ($ownerdom ne '') && ($ownerhome ne '')) {
65: unless ($ownerhome eq 'no_host') {
66: my @hosts = &Apache::lonnet::current_machine_ids();
67: if (grep(/^\Q$ownerhome\E$/,@hosts)) {
68: $allowed = 1;
69: }
70: }
71: }
1.7 raeburn 72: } elsif ($path =~ m|^/uploaded/|) {
1.3 damieng 73: if ($env{'user.name'} ne '' && $env{'user.domain'} ne '' && $env{'request.course.id'}) {
74: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
75: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
1.4 damieng 76: if ($path =~ m|^/uploaded/\Q$cdom\E/\Q$cnum\E/| && $path !~ /\.\./) {
1.3 damieng 77: if (&Apache::lonnet::allowed('mdc', $env{'request.course.id'})) {
78: $allowed = 1;
79: }
1.1 damieng 80: }
81: }
82: }
83: unless ($allowed) {
1.2 damieng 84: $request->log_reason("Unauthorized path: $path", $path);
85: $request->print("error\nUnauthorized path: $path");
86: $request->status(403);
87: return OK;
1.1 damieng 88: }
89:
1.7 raeburn 90: if ($path =~ m{^/priv/}) {
91: my $newpath = &Apache::lonnet::filelocation('', $path);
92: my $contents = $env{'form.file'};
1.1 damieng 93:
1.7 raeburn 94: my $mode;
95: if ($path =~ /\.(task|problem|exam|quiz|assess|survey|library|xml|html|htm|xhtml|xhtm)$/) {
96: try {
97: $contents = &Apache::xml_to_loncapa::convert_file($contents);
98: } catch {
99: $request->print("error\nconvert failed for $path: $_");
100: return OK;
101: };
102: $mode = '>:encoding(UTF-8)';
103: } else {
104: $mode = '>';
105: }
106:
107: my $filebak = $newpath.".bak";
108: if (-e $newpath) {
109: copy($newpath, $filebak); # errors ignored
110: }
111: if (open(my $out, $mode, $newpath)) {
112: print $out $contents;
113: close($out);
114: $request->print("ok\n");
115: } else {
116: $request->print("error\nFailed to open file to save $path");
117: }
118: } elsif ($path =~ m{^/uploaded/}) {
119: my ($unauthorized,$unsupported);
120: if ($path =~ m{^\Q/uploaded/$cdom/$cnum/\E(docs|supplemental)/(default|\d+)/(\d+)/(.+)$}) {
121: my ($type,$folder,$rid,$fname) = ($1,$2,$3,$4);
122: my $referrer = $request->headers_in->{'Referer'};
123: if ($referrer =~ m{\Qfile=/daxeopen/uploaded/$cdom/$cnum/$type/$folder/$rid/\E}) {
124: if ($fname =~ /\.(html|htm|xhtml|xhtm)$/) {
125: try {
126: $env{'form.file'} = &Apache::xml_to_loncapa::convert_file($env{'form.file'});
127: } catch {
128: $request->print("error\nconvert failed for $fname: $_");
129: return OK;
130: }
131: } elsif ($fname =~ /\.(task|problem|exam|quiz|assess|survey|library|xml)$/) {
132: $unsupported = $1;
133: }
134: unless ($unsupported) {
1.8 raeburn 135: my $url = &Apache::lonnet::userfileupload('file','daxesave',"$type/$folder/$rid",
136: undef,undef,undef,$cnum,$cdom);
1.7 raeburn 137: if ($url =~ m{^/uploaded/$cdom/$cnum/$type/$folder/$rid/}) {
138: $request->print("ok\n");
139: } else {
140: $request->print("error\nFailed to save uploaded file: $fname");
141: }
142: }
143: } else {
144: $unauthorized = 1;
145: }
146: } else {
147: $unauthorized = 1;
148: }
149: if ($unauthorized) {
150: $request->log_reason("Unauthorized path: $path", $path);
151: $request->print("error\nUnauthorized path: $path");
152: $request->status(403);
153: } elsif ($unsupported) {
154: $request->log_reason("File extension: $unsupported -- not allowed for upload to course", $path);
155: $request->print("error\nFile extension: $unsupported -- not allowed for upload to course");
156: $request->status(403);
157: }
1.6 raeburn 158: }
1.1 damieng 159: return OK;
160: }
161:
162: 1;
163: __END__
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>
![[BACK]](/icons/back.gif){kind=icon}
Return to daxesave.pm CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [LON-CAPA] / loncom / homework