1: # The LearningOnline Network with CAPA
2: # Souce Code handler
3: #
4: # $Id: lonsource.pm,v 1.4 2004/07/07 00:02:00 taceyjo1 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 $sourcelink = "http://".$ENV{'SERVER_NAME'}.
47: "/adm/source/?filename=".$filename."&listname=".$listname;
48:
49: return $sourcelink;
50: }
51:
52: sub stage_2 {
53: my ($r, $filename, $author, $listname) = @_;
54: $filename = $filename;
55: &Apache::loncommon::content_type($r,'text/html');
56: my ($uname, $udom) = &Apache::loncacc::constructaccess('/~'.$author.'/',$r->dir_config('lonDefDomain'));
57: $r->send_http_header;
58: $r->print('<html><head><title>LON-CAPA Move source to construction space</title>');
59: $r->print(&Apache::loncommon::bodytag('Problem source code moving operation'));
60: $r->print("Please enter the directory that you would like the source code to go into, a default has also been provided <br />");
61: $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 />");
62: $r->print(' <form name="copy" action="/adm/source/" target="_parent" method="post">
63: <input type="hidden" name="filename" value="'.$filename.'" />
64: <input type="hidden" name="listname" value="'.$listname.'" />
65: <input type="hidden" name="action" value="copy_stage" />
66: <input type="text" name="newpath" value="/shared_source/'.$author.'" />
67: <input type="submit" value="Copy" />
68: </form>');
69: return OK;
70: }
71:
72:
73: sub copy_stage {
74: my ($r, $filename, $listname, $newpath) = @_;
75: my $role;
76: my $domain;
77: my $author_name;
78: #Figure out if we are author or co-author
79: if($ENV{'request.role'} =~ m|ca.|) {
80: ($role, $domain, $author_name) = split(/\//,$ENV{'request.role'});
81: } else {
82: $role = "au.";
83: $domain = $ENV{'user.domain'};
84: $author_name = $ENV{'user.name'};
85: }
86:
87: my $path_to_new_file = '/home/'.$author_name.'/public_html/'.$newpath.'/'.$listname;
88: #Just checking again for access as we want to make sure that it is really ok now that we have the real path
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('<html><head><title>LON-CAPA Move source to construction space</title>');
96: $r->print(&Apache::loncommon::bodytag('Copying Source'));
97: my $result = &Apache::loncfile::exists($uname, $udom, $path_to_new_file);
98: $r->print($result);
99: if(($result) && ($result =~ m|published|) ) {
100: &delete_file($r, $author_name, $newpath, $filename, $path_to_new_file, '1');
101: } elsif(($result) && ($result =~ m|exists!|)) {
102: &confirm($r, $author_name, $newpath, $filename, $path_to_new_file);
103: } else {
104: ©_file($r, $author_name, $newpath, $filename, $path_to_new_file);
105: }
106:
107: return OK;
108:
109: }
110:
111: sub confirm {
112: my ($r, $author_name, $newpath, $filename, $path_to_new_file) = @_;
113: $r->print("<b>Press delete to remove file and replace it with a copy of the source you are viewing</b><br /><br />");
114: $r->print(' <form name="delete_confirm" action="/adm/source/" target="_parent" method="post">
115: <input type="hidden" name="filename" value="'.$filename.'" />
116: <input type="hidden" name="path" value="'.$path_to_new_file.'" />
117: <input type="hidden" name="author" value="'.$author_name.'" />
118: <input type="hidden" name="newpath" value="'.$newpath.'" />
119: <input type="hidden" name="action" value="delete_confirm" />
120:
121: <input type="submit" value="Delete" />
122: </form>');
123: }
124:
125: sub delete_file {
126: my ($r, $author_name, $newpath, $filename, $path_to_new_file, $type) = @_;
127: if($type eq '1') {
128: $r->print("<b>Cannot delete non-obsolete published file</b><br />Please
129: use the code view in previous window to use shared code<br /><br />");
130: $r->print('<input type="button" value="Close Window" name="close" onClick="window.close()">');
131: } else {
132: if(-e $path_to_new_file) {
133: unless(unlink($path_to_new_file)) {
134: $r->print('<font color="red">'.&mt('Error').': '.$!.'</font>');
135: return 0;
136: }
137: } else {
138: $r->print('<p> '.&mt('No such file').'. </p></form>');
139: return 0;
140: }
141: ©_file($r, $author_name, $newpath, $filename, $path_to_new_file);
142: }
143: }
144:
145: sub copy_file {
146: my ($r, $author_name, $newpath, $filename, $path_to_new_file) = @_;
147: $r->print("<b>Creating directories</b>");
148: my $path = '/home/'.$author_name.'/public_html/';
149: my @directories = split(/\//,$newpath);
150: foreach my $now_checking (@directories) {
151: if($now_checking ne '') {
152: $path = $path.'/'.$now_checking;
153: if(-e $path) {} #More moving along, isn't recursion fun'
154: else {
155: unless(mkdir($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: $r->print("<br /><b>Copying File</b>");
167: my $problem_filename = "/home/httpd/html".$filename;
168: my $file_output = &Apache::lonnet::getfile($problem_filename);
169: my $fs=Apache::File->new(">$path_to_new_file");
170: if (defined($fs)) {
171: print $fs $file_output;
172: }
173: $r->print("<br /><br />");
174: $r->print('<input type="button" value="Close Window" name="close" onClick="window.close()">');
175: #Some 1.3'ish feature is to include the derivative feature, will go here..'
176: }
177:
178: sub print_item {
179: my ($r, $filename) = @_;
180: $filename = "/home/httpd/html".$filename;
181: &Apache::lonnet::logthis("print_item filename = $filename");
182: my $file_output = &Apache::lonnet::getfile($filename);
183: my $count=0;
184: my $maxlength=-1;
185: foreach (split ("\n", $file_output)) {
186: $count+=int(length($_)/79);
187: $count++;
188: if (length($_) > $maxlength) { $maxlength = length($_); }
189: }
190: my $rows = $count;
191: my $cols = $maxlength;
192: $r->print('<textarea rows="'.$rows.'" cols="'.$cols.'" name="editxmltext">'.
193: &HTML::Entities::encode($file_output,'<>&"').'</textarea>');
194: return OK;
195:
196: }
197:
198:
199: sub handler {
200: my $r=shift;
201: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
202: ['filename','listname']);
203: my $filename = $ENV{'form.filename'};
204: my $listname = $ENV{'form.listname'};
205: my $source = &Apache::lonnet::metadata($filename,'sourceavail');
206: if ($source ne 'open') {
207: $ENV{'user.error.msg'}="$filename:cre:1:1:Source code not available";
208: return HTTP_NOT_ACCEPTABLE;
209: }
210: if ((!&Apache::lonnet::allowed('cre',$filename)) ||
211: (!&Apache::lonnet::allowed('bre',$filename))) {
212: $ENV{'user.error.msg'}="$filename:bre:1:1:Access to resource denied";
213: return HTTP_NOT_ACCEPTABLE;
214: }
215: if ($ENV{'form.action'} eq 'stage2') {
216: my $author = &Apache::lonnet::metadata($filename,'authorspace');
217: $author =~ m|@|;
218: $author = $`; #This just tells who the author name is for later processing.
219: &stage_2($r, $ENV{'form.filename'}, $author, $listname);
220: } elsif($ENV{'form.action'} eq 'copy_stage') {
221: ©_stage($r, $filename,$ENV{'form.listname'},$ENV{'form.newpath'});
222: } elsif($ENV{'form.action'} eq 'delete_confirm') {
223: &Apache::loncommon::content_type($r,'text/html');
224: $r->send_http_header;
225: &delete_file($r, $ENV{'form.author'}, $ENV{'form.newpath'}, $ENV{'form.filename'}, $ENV{'form.path'}, '0');
226: } else {
227: &Apache::loncommon::content_type($r,'text/html');
228: $r->send_http_header;
229: $r->print(' <form name="copy" action="/adm/source/" target="_parent" method="post">
230: <input type="button" value="Close Window" name="close" onClick="window.close()">
231: <input type="hidden" name="filename" value="'.$filename.'" />
232: <input type="hidden" name="listname" value="'.$listname.'" />
233: <input type="hidden" name="action" value="stage2" />
234: <input type="submit" value="Copy to CSTR" />
235: </form>');
236: $r->print('<hr />');
237: &print_item($r, $ENV{'form.filename'});
238: }
239: return OK;
240: }
241:
242: 1;
243:
244:
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