Annotation of loncom/interface/lonsource.pm, revision 1.33
1.1 taceyjo1 1: # The LearningOnline Network with CAPA
1.23 bisitz 2: # Source Code handler
1.1 taceyjo1 3: #
1.33 ! raeburn 4: # $Id: lonsource.pm,v 1.32 2014/02/11 15:49:15 bisitz Exp $
1.1 taceyjo1 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;
1.11 albertel 34: use Apache::lonnet;
1.1 taceyjo1 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;
1.28 raeburn 43: use LONCAPA qw(:DEFAULT :match);
1.1 taceyjo1 44:
45: sub make_link {
1.4 taceyjo1 46: my ($filename, $listname) = @_;
1.18 albertel 47: my $sourcelink = "/adm/source?inhibitmenu=yes&filename=".$filename."&listname=".$listname;
1.2 albertel 48:
49: return $sourcelink;
1.1 taceyjo1 50: }
51:
52: sub stage_2 {
1.26 www 53: my ($r, $filename, $listname) = @_;
54: my ($author)=($filename=~/\/res\/[^\/]+\/([^\/]+)\//);
1.33 ! raeburn 55: $r->print(&Apache::loncommon::start_page('Copy Problem Source Code to Authoring Space',undef,
! 56: {'only_body' => 1,})
1.21 bisitz 57: .&mt('Please enter the directory that you would like the source code to go into.')
58: .'<p>'
1.31 bisitz 59: .&mt('Note: the path is in reference to the root of your Authoring Space,'
1.21 bisitz 60: .' and new directories will be automatically created.')
61: .'</p>');
1.13 www 62: $r->print('<form name="copy" action="/adm/source" target="_parent" method="post">
1.5 taceyjo1 63: <input type="hidden" name="filename" value="'.$filename.'" />
64: <input type="hidden" name="listname" value="'.$listname.'" />
65: <input type="hidden" name="action" value="copy_stage" />
1.21 bisitz 66: <input type="text" size="50" name="newpath" value="/'.&mt('shared_source').'/'.$author.'" />
67: <input type="submit" value="'.&mt('Copy').'" />
1.33 ! raeburn 68: </form>'.
! 69: &Apache::loncommon::end_page());
1.5 taceyjo1 70: return OK;
1.4 taceyjo1 71: }
72:
1.26 www 73: sub copy_author {
1.4 taceyjo1 74: my $role;
75: my $domain;
76: my $author_name;
1.19 albertel 77: if ($env{'request.role'} =~ m{^ca\.}) {
1.11 albertel 78: ($role, $domain, $author_name) = split(/\//,$env{'request.role'});
1.4 taceyjo1 79: } else {
1.5 taceyjo1 80: $role = "au.";
1.11 albertel 81: $domain = $env{'user.domain'};
82: $author_name = $env{'user.name'};
1.5 taceyjo1 83: }
1.26 www 84: return ($role,$author_name,$domain);
85: }
86:
87:
88: sub copy_stage {
89: my ($r, $filename, $listname, $newpath) = @_;
90:
91: #Figure out if we are author or co-author
92: my ($role,$author_name,$domain)=©_author();
1.5 taceyjo1 93:
1.26 www 94: # Construct path to copy and filter out any possibly nasty stuff
1.27 raeburn 95: my $path_to_new_file = $r->dir_config('lonDocRoot').
96: "/priv/$domain/$author_name/$newpath/$listname";
1.26 www 97: $path_to_new_file=~s/\.\.//g;
98: $path_to_new_file=~s/\~//g;
99: $path_to_new_file=~s/\/+/\//g;
100:
1.5 taceyjo1 101: #Just checking again for access as we want to make sure that it is really ok now that we have the real path
102:
1.29 raeburn 103: my ($uname,$udom)= &Apache::lonnet::constructaccess($path_to_new_file);
1.20 albertel 104:
105: if (!$uname || !$udom) {
1.33 ! raeburn 106: $r->print(&Apache::loncommon::start_page('Not Allowed',undef,{'only_body' => 1}));
1.20 albertel 107: $r->print(&mt('Not allowed to create file [_1]', $path_to_new_file));
108: $r->print(&Apache::loncommon::end_page());
109: return;
1.4 taceyjo1 110: }
1.20 albertel 111:
112: #allowed
1.33 ! raeburn 113: $r->print(&Apache::loncommon::start_page('Copying Source',undef,{'only_body' => 1}));
1.5 taceyjo1 114: my $result = &Apache::loncfile::exists($uname, $udom, $path_to_new_file);
115: $r->print($result);
116: if(($result) && ($result =~ m|published|) ) {
1.26 www 117: &delete_copy_file($r, $newpath, $filename, $path_to_new_file, '1');
1.5 taceyjo1 118: } elsif(($result) && ($result =~ m|exists!|)) {
1.26 www 119: &confirm($r, $newpath, $filename, $path_to_new_file);
1.5 taceyjo1 120: } else {
1.26 www 121: ©_file($r, $newpath, $filename, $path_to_new_file);
1.5 taceyjo1 122: }
1.20 albertel 123:
124: $r->print(&Apache::loncommon::end_page());
1.4 taceyjo1 125: }
126:
127: sub confirm {
1.26 www 128: my ($r, $newpath, $filename, $path_to_new_file) = @_;
1.32 bisitz 129: $r->print('<b>'.&mt('Press delete to remove file and replace it with a copy of the source you are viewing.').'</b><br /><br />');
1.13 www 130: $r->print('<form name="delete_confirm" action="/adm/source" target="_parent" method="post">
1.5 taceyjo1 131: <input type="hidden" name="filename" value="'.$filename.'" />
132: <input type="hidden" name="path" value="'.$path_to_new_file.'" />
133: <input type="hidden" name="newpath" value="'.$newpath.'" />
134: <input type="hidden" name="action" value="delete_confirm" />
135:
136: <input type="submit" value="Delete" />
137: </form>');
1.4 taceyjo1 138: }
139:
1.6 taceyjo1 140: sub delete_copy_file {
1.26 www 141: my ($r, $newpath, $filename, $path_to_new_file, $type) = @_;
1.5 taceyjo1 142: if($type eq '1') {
1.23 bisitz 143: $r->print('<p><span class="LC_warning">'
144: .&mt('Cannot delete non-obsolete published file.')
145: .'</span><br />'
146: .&mt('Please use the code view in previous window to use shared code.')
147: .'<br /><br />');
1.33 ! raeburn 148: $r->print('<form name="delete_done" action="/adm/source" target="_parent" method="post">'
! 149: .'<input type="button" value="'.&mt('Close Window').'" name="close"'
1.24 raeburn 150: .' onclick="window.close()" />'
1.23 bisitz 151: .'</p>');
1.5 taceyjo1 152: } else {
1.33 ! raeburn 153: $r->print(&Apache::loncommon::start_page('Copying Source',undef,{'only_body' => 1}));
1.5 taceyjo1 154: if(-e $path_to_new_file) {
155: unless(unlink($path_to_new_file)) {
1.23 bisitz 156: $r->print('<p class="LC_error"">'.&mt('Error:').' '.$!.'</p>');
1.5 taceyjo1 157: return 0;
158: }
159: } else {
1.33 ! raeburn 160: $r->print('<p class="LC_error">'.&mt('No such file').'</p>');
1.5 taceyjo1 161: return 0;
162: }
1.26 www 163: ©_file($r, $newpath, $filename, $path_to_new_file);
1.33 ! raeburn 164: $r->print(&Apache::loncommon::end_page());
1.5 taceyjo1 165: }
1.1 taceyjo1 166: }
167:
1.4 taceyjo1 168: sub copy_file {
1.26 www 169: my ($r, $newpath, $filename, $path_to_new_file) = @_;
1.32 bisitz 170: $r->print('<b>'.&mt('Creating directories').'</b>');
1.26 www 171:
172: #Figure out if we are author or co-author
173: my ($role,$author_name,$domain)=©_author();
174:
1.27 raeburn 175: my $path = $r->dir_config('lonDocRoot')."/priv/$domain/$author_name/";
1.5 taceyjo1 176: my @directories = split(/\//,$newpath);
1.26 www 177:
1.5 taceyjo1 178: foreach my $now_checking (@directories) {
179: if($now_checking ne '') {
180: $path = $path.'/'.$now_checking;
181: if(-e $path) {} #More moving along, isn't recursion fun'
182:
183: else {
184: unless(mkdir($path, 02770)) {
1.23 bisitz 185: $r->print('<p class="LC_error">'.&mt('Error:').' '.$!.'</p>');
1.5 taceyjo1 186: return 0;
187: }
188: unless(chmod(02770, ($path))) {
1.23 bisitz 189: $r->print('<p class="LC_error"> '.&mt('Error:').' '.$!.'</p>');
1.5 taceyjo1 190: return 0;
191: }
192: }
193: } else { } #Just move along
194:
195: }
1.32 bisitz 196: $r->print('<br /><b>'.&mt('Copying File').'</b>');
1.6 taceyjo1 197: my $problem_filename = $Apache::lonnet::perlvar{'lonDocRoot'}.$filename;
1.17 www 198: my $file_output = &includemeta(&Apache::lonnet::getfile($problem_filename),$filename);
1.5 taceyjo1 199: my $fs=Apache::File->new(">$path_to_new_file");
200: if (defined($fs)) {
201: print $fs $file_output;
202: }
203: $r->print("<br /><br />");
1.33 ! raeburn 204: $r->print('<form name="copied_file" action="/adm/source" target="_parent" method="post">'
! 205: .'<input type="button" value="'
! 206: .&mt('Close Window').'" name="close" onclick="window.close()" />'
! 207: .'</form>');
1.5 taceyjo1 208: #Some 1.3'ish feature is to include the derivative feature, will go here..'
209: }
1.4 taceyjo1 210:
1.1 taceyjo1 211: sub print_item {
1.28 raeburn 212: my ($r,$filename,$listname) = @_;
213: my $file_output =
214: &includemeta(&Apache::lonnet::getfile($Apache::lonnet::perlvar{'lonDocRoot'}.$filename),
215: $filename);
216: $r->print(&Apache::loncommon::start_page('View Source Code',undef,
217: {'only_body' => 1}));
218: if ($file_output ne '') {
219: my $access_to_cstr;
220: my $lonhost = $r->dir_config('lonHostID');
221: if (&Apache::lonnet::is_library($lonhost)) {
222: my @possdoms = &Apache::lonnet::current_machine_domains();
223: foreach my $dom (@possdoms) {
224: if ($env{"user.role.au./$dom/"}) {
225: $access_to_cstr = 1;
226: last;
227: }
228: }
229: unless ($access_to_cstr) {
230: foreach my $key (keys(%env)) {
231: if ($key =~ m{^\Quser.role.ca./\E($match_domain)/}) {
232: my $adom = $1;
233: if (grep(/^\Q$adom\E$/,@possdoms)) {
234: $access_to_cstr = 1;
235: last;
236: }
237: }
238: }
239: }
240: if ($access_to_cstr) {
241: $r->print('
242: <form name="copy" action="/adm/source" target="_parent" method="post">
243: <input type="button" value="'.&mt('Close Window').'" name="close" onclick="window.close();" />
244: <input type="hidden" name="filename" value="'.$filename.'" />
245: <input type="hidden" name="listname" value="'.$listname.'" />
246: <input type="hidden" name="action" value="stage2" />
1.30 raeburn 247: <input type="submit" value="'.&mt('Copy to Authoring Space').'" />
1.28 raeburn 248: </form><hr />
249: ');
250: } else {
251: $r->print('<p><span class="LC_info">'.
252: &mt('Source code is displayed, but you can not copy to Authoring Space, as you do not have an author or co-author role on this server.').
253: '</span></p><a href="javascript:window.close();">'.&mt('Close Window').
254: '</a><br /><hr />'
255: );
256: }
257: } else {
258: $r->print('<p><span class="LC_info">'.
259: &mt('Source code is displayed, but you can not copy to Authoring Space on this server.').
260: '</span></p><a href="javascript:window.close();">'.&mt('Close Window').
261: '</a><br /><hr />'
262: );
263:
264: }
265: my $count=0;
266: my $maxlength=-1;
267: foreach (split ("\n", $file_output)) {
268: $count+=int(length($_)/79);
269: $count++;
270: if (length($_) > $maxlength) {
271: $maxlength = length($_);
272: }
1.5 taceyjo1 273: }
1.28 raeburn 274: my $rows = $count;
275: my $cols = $maxlength;
276: $r->print('<form name="showsrc" action="" method="post" onsubmit="return false">'."\n".
277: '<textarea rows="'.$rows.'" cols="'.$cols.'" name="editxmltext">'.
278: &HTML::Entities::encode($file_output,'<>&"').'</textarea></form>');
279: } else {
280: $r->print('<p class="LC_warning">'.
281: &mt('Unable to retrieve file contents.').
282: '</p><a href="javascript:window.close();">'.&mt('Close Window').'</a>'
283: );
1.5 taceyjo1 284: }
1.28 raeburn 285: $r->print(&Apache::loncommon::end_page());
286: return;
1.1 taceyjo1 287: }
288:
1.17 www 289: sub includemeta {
290: my ($file_output,$orgfilename)=@_;
291: my $escfilename=&escape($orgfilename);
292: my $copytime=time;
293: if ($file_output=~/\<meta\s*name\=\"isbasedonres\"/i) {
294: $file_output=~s/(\<meta\s*name\=\"isbasedonres\"\s*content\=\"[^\"]*)\"/$1\,\Q$escfilename\E\"/i;
295: } else {
296: $file_output=~s/(\<(?:html|problem)[^\>]*\>)/$1\n\<meta name=\"isbasedonres\" content=\"\Q$escfilename\E\" \/\>/i;
297: }
298: if ($file_output=~/\<meta\s*name\=\"isbasedontime\"/i) {
299: $file_output=~s/(\<meta\s*name\=\"isbasedontime\"\s*content\=\"[^\"]*)\"/$1\,\Q$copytime\E\"/i;
300: } else {
301: $file_output=~s/(\<(?:html|problem)[^\>]*\>)/$1\n\<meta name=\"isbasedontime\" content=\"\Q$copytime\E\" \/\>/i;
302: }
1.28 raeburn 303: if ($file_output eq '-1') {
304: return;
305: } else {
306: return $file_output;
307: }
1.17 www 308: }
1.1 taceyjo1 309:
1.5 taceyjo1 310: sub handler {
1.2 albertel 311: my $r=shift;
1.3 www 312: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.5 taceyjo1 313: ['filename','listname']);
1.11 albertel 314: my $filename = $env{'form.filename'};
315: my $listname = $env{'form.listname'};
1.3 www 316: my $source = &Apache::lonnet::metadata($filename,'sourceavail');
317: if ($source ne 'open') {
1.11 albertel 318: $env{'user.error.msg'}="$filename:cre:1:1:Source code not available";
1.5 taceyjo1 319: return HTTP_NOT_ACCEPTABLE;
1.28 raeburn 320: }
321: unless (&Apache::lonnet::allowed('bre',$filename)) {
1.11 albertel 322: $env{'user.error.msg'}="$filename:bre:1:1:Access to resource denied";
1.5 taceyjo1 323: return HTTP_NOT_ACCEPTABLE;
1.28 raeburn 324: }
325: unless (&Apache::lonnet::allowed('cre','/')) {
326: $env{'user.error.msg'}="$filename:cre:1:1:Access to source code denied";
327: return HTTP_NOT_ACCEPTABLE;
328: }
1.20 albertel 329:
330: &Apache::loncommon::content_type($r,'text/html');
331: $r->send_http_header;
332:
1.11 albertel 333: if ($env{'form.action'} eq 'stage2') {
1.28 raeburn 334: &stage_2($r,$filename,$listname);
1.11 albertel 335: } elsif($env{'form.action'} eq 'copy_stage') {
1.28 raeburn 336: ©_stage($r,$filename,$listname,$env{'form.newpath'});
1.11 albertel 337: } elsif($env{'form.action'} eq 'delete_confirm') {
1.28 raeburn 338: &delete_copy_file($r,$env{'form.newpath'},$filename, $env{'form.path'}, '0');
1.6 taceyjo1 339: } else {
1.28 raeburn 340: &print_item($r,$filename,$listname);
1.5 taceyjo1 341: }
1.2 albertel 342: return OK;
1.1 taceyjo1 343: }
344:
345: 1;
1.5 taceyjo1 346:
347:
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