1: # The LearningOnline Network with CAPA
2: # Souce Code handler
3: #
4: # $Id: lonsource.pm,v 1.16 2006/03/15 19:41:26 albertel Exp $
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:
31: package Apache::lonsource;
32:
33: use strict;
34: use Apache::lonnet;
35: use Apache::loncommon();
36: use Apache::lonhtmlcommon();
37: use Apache::lonsequence();
38: use Apache::Constants qw(:common :http);
39: use Apache::lonmeta;
40: use Apache::File;
41: use Apache::lonlocal;
42: use HTML::Entities;
43:
44: sub make_link {
45: my ($filename, $listname) = @_;
46: my $sourcelink = "/adm/source?filename=".$filename."&listname=".$listname;
47:
48: return $sourcelink;
49: }
50:
51: sub stage_2 {
52: my ($r, $filename, $author, $listname) = @_;
53: $filename = $filename;
54: &Apache::loncommon::content_type($r,'text/html');
55: my ($uname, $udom) = &Apache::loncacc::constructaccess('/~'.$author.'/',$r->dir_config('lonDefDomain'));
56: $r->send_http_header;
57: $r->print(&Apache::loncommon::start_page('Problem source code moving operation'));
58: $r->print("Please enter the directory that you would like the source code to go into, a default has also been provided <br />");
59: $r->print("Also note, the path is in reference to the root of your construction space, and new directories will be automatically created. <br /><br />");
60: $r->print('<form name="copy" action="/adm/source" target="_parent" method="post">
61: <input type="hidden" name="filename" value="'.$filename.'" />
62: <input type="hidden" name="listname" value="'.$listname.'" />
63: <input type="hidden" name="action" value="copy_stage" />
64: <input type="text" size="50" name="newpath" value="/shared_source/'.$author.'" />
65: <input type="submit" value="Copy" />
66: </form>');
67: return OK;
68: }
69:
70:
71: sub copy_stage {
72: my ($r, $filename, $listname, $newpath) = @_;
73: my $role;
74: my $domain;
75: my $author_name;
76: #Figure out if we are author or co-author
77:
78: if($env{'request.role'} =~ m|ca.|) {
79: ($role, $domain, $author_name) = split(/\//,$env{'request.role'});
80: } else {
81: $role = "au.";
82: $domain = $env{'user.domain'};
83: $author_name = $env{'user.name'};
84: }
85:
86: my $path_to_new_file = '/home/'.$author_name.'/public_html/'.$newpath.'/'.$listname;
87: #Just checking again for access as we want to make sure that it is really ok now that we have the real path
88:
89: my ($uname,$udom)= &Apache::loncacc::constructaccess($path_to_new_file,$domain);
90: unless (($uname) && ($udom)) {
91: return HTTP_NOT_ACCEPTABLE;
92: }
93: &Apache::loncommon::content_type($r,'text/html');
94: $r->send_http_header;
95: $r->print(&Apache::loncommon::start_page('Copying Source'));
96: my $result = &Apache::loncfile::exists($uname, $udom, $path_to_new_file);
97: $r->print($result);
98: if(($result) && ($result =~ m|published|) ) {
99: &delete_copy_file($r, $author_name, $newpath, $filename, $path_to_new_file, '1');
100: } elsif(($result) && ($result =~ m|exists!|)) {
101: &confirm($r, $author_name, $newpath, $filename, $path_to_new_file);
102: } else {
103: ©_file($r, $author_name, $newpath, $filename, $path_to_new_file);
104: }
105:
106: return OK;
107:
108: }
109:
110: sub confirm {
111: my ($r, $author_name, $newpath, $filename, $path_to_new_file) = @_;
112: $r->print("<b>Press delete to remove file and replace it with a copy of the source you are viewing</b><br /><br / >");
113: $r->print('<form name="delete_confirm" action="/adm/source" target="_parent" method="post">
114: <input type="hidden" name="filename" value="'.$filename.'" />
115: <input type="hidden" name="path" value="'.$path_to_new_file.'" />
116: <input type="hidden" name="author" value="'.$author_name.'" />
117: <input type="hidden" name="newpath" value="'.$newpath.'" />
118: <input type="hidden" name="action" value="delete_confirm" />
119:
120: <input type="submit" value="Delete" />
121: </form>');
122: }
123:
124: sub delete_copy_file {
125: my ($r, $author_name, $newpath, $filename, $path_to_new_file, $type) = @_;
126: if($type eq '1') {
127: $r->print("<b>Cannot delete non-obsolete published file</b><br />Please
128: use the code view in previous window to use shared code<br /><br />");
129: $r->print('<input type="button" value="Close Window" name="close" onClick="window.close()" />');
130: } else {
131: if(-e $path_to_new_file) {
132: unless(unlink($path_to_new_file)) {
133: $r->print('<font color="red">'.&mt('Error').': '.$!.'</font>');
134: return 0;
135: }
136: } else {
137: $r->print('<p> '.&mt('No such file').'. </p></form>');
138: return 0;
139: }
140: ©_file($r, $author_name, $newpath, $filename, $path_to_new_file);
141: }
142: }
143:
144: sub copy_file {
145: my ($r, $author_name, $newpath, $filename, $path_to_new_file) = @_;
146: $r->print("<b>Creating directories</b>");
147: my $path = '/home/'.$author_name.'/public_html/';
148: my @directories = split(/\//,$newpath);
149: foreach my $now_checking (@directories) {
150: if($now_checking ne '') {
151: $path = $path.'/'.$now_checking;
152: if(-e $path) {} #More moving along, isn't recursion fun'
153:
154: else {
155: unless(mkdir($path, 02770)) {
156: $r->print('<font color="red">'.&mt('Error').': '.$!.'</font>');
157: return 0;
158: }
159: unless(chmod(02770, ($path))) {
160: $r->print('<font color="red"> '.&mt('Error').': '.$!.'</font>');
161: return 0;
162: }
163: }
164: } else { } #Just move along
165:
166: }
167: $r->print("<br /><b>Copying File</b>");
168: my $problem_filename = $Apache::lonnet::perlvar{'lonDocRoot'}.$filename;
169: my $file_output = &Apache::lonnet::getfile($problem_filename);
170: my $fs=Apache::File->new(">$path_to_new_file");
171: if (defined($fs)) {
172: print $fs $file_output;
173: }
174: $r->print("<br /><br />");
175: $r->print('<input type="button" value="Close Window" name="close" onClick="window.close()">');
176: #Some 1.3'ish feature is to include the derivative feature, will go here..'
177: }
178:
179: sub print_item {
180: my ($r, $filename) = @_;
181: $filename = $Apache::lonnet::perlvar{'lonDocRoot'}.$filename;
182: &Apache::lonnet::logthis("print_item filename = $filename");
183: my $file_output = &Apache::lonnet::getfile($filename);
184: my $count=0;
185: my $maxlength=-1;
186: foreach (split ("\n", $file_output)) {
187: $count+=int(length($_)/79);
188: $count++;
189: if (length($_) > $maxlength) {
190: $maxlength = length($_);
191: }
192: }
193: my $rows = $count;
194: my $cols = $maxlength;
195: $r->print('<textarea rows="'.$rows.'" cols="'.$cols.'" name="editxmltext">'.
196: &HTML::Entities::encode($file_output,'<>&"').'</textarea>');
197: return OK;
198:
199: }
200:
201:
202: sub handler {
203: my $r=shift;
204: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
205: ['filename','listname']);
206: my $filename = $env{'form.filename'};
207: my $listname = $env{'form.listname'};
208: my $source = &Apache::lonnet::metadata($filename,'sourceavail');
209: if ($source ne 'open') {
210: $env{'user.error.msg'}="$filename:cre:1:1:Source code not available";
211: return HTTP_NOT_ACCEPTABLE;
212: }
213: unless ((&Apache::lonnet::allowed('bre',$filename)) &&
214: (&Apache::lonnet::allowed('cre','/'))) {
215: $env{'user.error.msg'}="$filename:bre:1:1:Access to resource denied";
216: return HTTP_NOT_ACCEPTABLE;
217: }
218: if ($env{'form.action'} eq 'stage2') {
219: my $author = &Apache::lonnet::metadata($filename,'authorspace');
220: ($author) = split('@',$author); #strip the domain of the author name
221: &stage_2($r, $env{'form.filename'}, $author, $listname);
222: } elsif($env{'form.action'} eq 'copy_stage') {
223: ©_stage($r, $filename,$env{'form.listname'},$env{'form.newpath'});
224: } elsif($env{'form.action'} eq 'delete_confirm') {
225: &Apache::loncommon::content_type($r,'text/html');
226: $r->send_http_header;
227: &delete_copy_file($r, $env{'form.author'}, $env{'form.newpath'}, $env{'form.filename'}, $env{'form.path'}, '0');
228: } else {
229: &Apache::loncommon::content_type($r,'text/html');
230: $r->send_http_header;
231: $r->print('<form name="copy" action="/adm/source" target="_parent" method="post">
232: <input type="button" value="Close Window" name="close" onClick="window.close()" />
233: <input type="hidden" name="filename" value="'.$filename.'" />
234: <input type="hidden" name="listname" value="'.$listname.'" />
235: <input type="hidden" name="action" value="stage2" />
236: <input type="submit" value="Copy to CSTR" />
237: </form>');
238: $r->print('<hr />');
239: &print_item($r, $env{'form.filename'});
240: }
241: return OK;
242: }
243:
244: 1;
245:
246:
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