1: # The LearningOnline Network with CAPA
2: # Handler to rename files, etc, in construction space
3: #
4: # This file responds to the various buttons and events
5: # in the top frame of the construction space directory.
6: # Each event is processed in two phases. The first phase
7: # presents a page that describes the proposed action to the user
8: # and requests confirmation. The second phase commits the action
9: # and displays a page showing the results of the action.
10: #
11: #
12: # $Id: loncfile.pm,v 1.50 2004/01/05 16:48:50 www Exp $
13: #
14: # Copyright Michigan State University Board of Trustees
15: #
16: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
17: #
18: # LON-CAPA is free software; you can redistribute it and/or modify
19: # it under the terms of the GNU General Public License as published by
20: # the Free Software Foundation; either version 2 of the License, or
21: # (at your option) any later version.
22: #
23: # LON-CAPA is distributed in the hope that it will be useful,
24: # but WITHOUT ANY WARRANTY; without even the implied warranty of
25: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
26: # GNU General Public License for more details.
27: #
28: # You should have received a copy of the GNU General Public License
29: # along with LON-CAPA; if not, write to the Free Software
30: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
31: #
32: # /home/httpd/html/adm/gpl.txt
33: #
34: # http://www.lon-capa.org/
35: #
36: =pod
37:
38: =head1 NAME
39:
40: Apache::loncfile - Construction space file management.
41:
42: =head1 SYNOPSIS
43:
44: Content handler for buttons on the top frame of the construction space
45: directory.
46:
47: =head1 INTRODUCTION
48:
49: loncfile is invoked when buttons in the top frame of the construction
50: space directory listing are clicked. All operations proceed in two phases.
51: The first phase describes to the user exactly what will be done. If the user
52: confirms the operation, the second phase commits the operation and indicates
53: completion. When the user dismisses the output of phase2, they are returned to
54: an "appropriate" directory listing in general.
55:
56: This is part of the LearningOnline Network with CAPA project
57: described at http://www.lon-capa.org.
58:
59: =head2 Subroutines
60:
61: =cut
62:
63: package Apache::loncfile;
64:
65: use strict;
66: use Apache::File;
67: use File::Basename;
68: use File::Copy;
69: use HTML::Entities();
70: use Apache::Constants qw(:common :http :methods);
71: use Apache::loncacc;
72: use Apache::Log ();
73: use Apache::lonnet;
74: use Apache::loncommon();
75: use Apache::lonlocal;
76:
77: my $DEBUG=0;
78: my $r; # Needs to be global for some stuff RF.
79:
80: =pod
81:
82: =item Debug($request, $message)
83:
84: If debugging is enabled puts out a debugging message determined by the
85: caller. The debug message goes to the Apache error log file. Debugging
86: is enabled by setting the module global DEBUG variable to nonzero (TRUE).
87:
88: Parameters:
89:
90: =over 4
91:
92: =item $request - The current request operation.
93:
94: =item $message - The message to put in the log file.
95:
96: =back
97:
98: Returns:
99: nothing.
100:
101: =cut
102:
103: sub Debug {
104:
105: # Marshall the parameters.
106:
107: my $r = shift;
108: my $log = $r->log;
109: my $message = shift;
110:
111: # Put out the indicated message butonly if DEBUG is true.
112:
113: if ($DEBUG) {
114: $r->log_reason($message);
115: }
116: }
117:
118: =pod
119:
120: =item URLToPath($url)
121:
122: Convert a URL to a file system path.
123:
124: In order to manipulate the construction space objects, it is necessary
125: to access url identified objects a filespace objects. This function
126: translates a construction space URL to a file system path.
127: Parameters:
128:
129: =over 4
130:
131: =item Url - string [in] The url to convert.
132:
133: =back
134:
135: Returns:
136:
137: =over 4
138:
139: =item The corresponding file system path.
140:
141: =back
142:
143: Global References
144:
145: =over 4
146:
147: =item $r - Request object [in] Referenced in the &Debug calls.
148:
149: =back
150:
151: =cut
152:
153: sub URLToPath {
154: my $Url = shift;
155: &Debug($r, "UrlToPath got: $Url");
156: $Url=~ s/\/+/\//g;
157: $Url=~ s/^http\:\/\/[^\/]+//;
158: $Url=~ s/^\///;
159: $Url=~ s/(\~|priv\/)(\w+)\//\/home\/$2\/public_html\//;
160: &Debug($r, "Returning $Url \n");
161: return $Url;
162: }
163:
164: sub url {
165: my $fn=shift;
166: $fn=~s/^\/home\/(\w+)\/public\_html/\/priv\/$1/;
167: return $fn;
168: }
169:
170: sub display {
171: my $fn=shift;
172: $fn=~s-^/home/(\w+)/public_html-/priv/$1-;
173: return '<tt>'.$fn.'</tt>';
174: }
175:
176:
177: # see if the file is
178: # a) published (return 0 if not)
179: # b) if, so obsolete (return 0 if not)
180:
181: sub obsolete_unpub {
182: my ($user,$domain,$construct)=@_;
183: my $published=$construct;
184: $published=~
185: s/^\/home\/$user\/public\_html\//\/home\/httpd\/html\/res\/$domain\/$user\//;
186: if (-e $published) {
187: if (&Apache::lonnet::metadata($published,'obsolete')) {
188: return 1;
189: }
190: return 0;
191: } else {
192: return 1;
193: }
194: }
195:
196:
197:
198: =pod
199:
200: =item exists($user, $domain, $file)
201:
202: Determine if a resource file name has been published or exists
203: in the construction space.
204:
205: Parameters:
206:
207: =over 4
208:
209: =item $user - string [in] - Name of the user for which to check.
210:
211: =item $domain - string [in] - Name of the domain in which the resource
212: might have been published.
213:
214: =item $file - string [in] - Name of the file.
215:
216: =back
217:
218: Returns:
219:
220: =over 4
221:
222: =item string - Either where the resource exists as an html string that can
223: be embedded in a dialog or an empty string if the resource
224: does not exist.
225:
226: =back
227:
228: =cut
229:
230: sub exists {
231: my ($user, $domain, $construct) = @_;
232: my $published=$construct;
233: $published=~
234: s/^\/home\/$user\/public\_html\//\/home\/httpd\/html\/res\/$domain\/$user\//;
235: my $result='';
236: if ( -d $construct ) {
237: return &mt('Error: destination for operation is an existing directory.');
238: }
239: if ( -e $published) {
240: $result.='<p><font color="red">'.&mt('Warning: target file exists, and has been published!').'</font></p>';
241: } elsif ( -e $construct) {
242: $result.='<p><font color="red">'.&mt('Warning: target file exists!').'</font></p>';
243: }
244: return $result;
245:
246: }
247:
248: =pod
249:
250: =item checksuffix($old, $new)
251:
252: Determine if a resource filename suffix (the stuff after the .) would change
253: as a result of this operation.
254:
255: Parameters:
256:
257: =over 4
258:
259: =item $old = string [in] Previous filename.
260:
261: =item $new = string [in] Resultant filename.
262:
263: =back
264:
265: Returns:
266:
267: =over 4
268:
269: =item Empty string if everything worked.
270:
271: =item String containing an error message if there was a problem.
272:
273: =back
274:
275: =cut
276:
277: sub checksuffix {
278: my ($old,$new) = @_;
279: my $result;
280: my $oldsuffix;
281: my $newsuffix;
282: if ($new=~m:(.*/*)([^/]+)\.(\w+)$:) { $newsuffix=$3; }
283: if ($old=~m:(.*)/+([^/]+)\.(\w+)$:) { $oldsuffix=$3; }
284: if ($oldsuffix ne $newsuffix) {
285: $result.=
286: '<p><font color="red">'.&mt('Warning: change of MIME type!').'</font></p>';
287: }
288: return $result;
289: }
290:
291: sub cleanDest {
292: my ($request,$dest)=@_;
293: #remove bad characters
294: if ($dest=~/[\#\?&]/) {
295: $request->print("<p><font color=\"red\">".&mt('Invalid characters in requested name have been removed.')."</font></p>");
296: $dest=~s/[\#\?&]//g;
297: }
298: return $dest;
299: }
300:
301: sub relativeDest {
302: my ($fn,$newfilename,$uname)=@_;
303: if ($newfilename=~/^\//) {
304: # absolute, simply add path
305: $newfilename='/home/'.$uname.'/public_html/';
306: } else {
307: my $dir=$fn;
308: $dir=~s/\/[^\/]+$//;
309: $newfilename=$dir.'/'.$newfilename;
310: }
311: $newfilename=~s://+:/:g; # remove duplicate /
312: while ($newfilename=~m:/\.\./:) {
313: $newfilename=~ s:/[^/]+/\.\./:/:g; #remove dir/..
314: }
315: return $newfilename;
316: }
317:
318: =pod
319:
320: =item CloseForm1($request, $user, $file)
321:
322: Close of a form on the successful completion of phase 1 processing
323:
324: Parameters:
325:
326: =over 4
327:
328: =item $request - Apache Request Object [in] - Apache server request object.
329:
330: =item $cancelurl - the url to go to on cancel.
331:
332: =back
333:
334: =cut
335:
336: sub CloseForm1 {
337: my ($request, $fn) = @_;
338: $request->print('<p><input type="submit" value="'.&mt('Continue').'" /></p></form>');
339: $request->print('<form action="'.&url($fn).
340: '" method="POST"><p><input type="submit" value="'.&mt('Cancel').'" /></p></form>');
341: }
342:
343:
344: =pod
345:
346: =item CloseForm2($request, $user, $directory)
347:
348: Successfully close off the phase 2 form.
349:
350: Parameters:
351:
352: =over 4
353:
354: =item $request - Apache Request object [in] - The request that is being
355: executed.
356:
357: =item $user - string [in] - Name of the user that is initiating the
358: request.
359:
360: =item $directory - string [in] - Directory in which the operation is
361: being done relative to the top level construction space
362: directory.
363:
364: =back
365:
366: =cut
367:
368: sub CloseForm2 {
369: my ($request, $user, $fn) = @_;
370: $request->print('<h3><a href="'.&url($fn).'/">'.&mt('Done').'</a></h3>');
371: }
372:
373: =pod
374:
375: =item Rename1($request, $filename, $user, $domain, $dir)
376:
377: Perform phase 1 processing of the file rename operation.
378:
379: Parameters:
380:
381: =over 4
382:
383: =item $request - Apache Request Object [in] The request object for the
384: current request.
385:
386: =item $filename - The filename relative to construction space.
387:
388: =item $user - Name of the user making the request.
389:
390: =item $domain - User login domain.
391:
392: =item $dir - Directory specification of the path to the file.
393:
394: =back
395:
396: Side effects:
397:
398: =over 4
399:
400: =item A new form is displayed prompting for confirmation. The newfilename
401: hidden field of this form is loaded with
402: new filename relative to the current directory ($dir).
403:
404: =back
405:
406: =cut
407:
408: sub Rename1 {
409: my ($request, $user, $domain, $fn, $newfilename) = @_;
410:
411: if(-e $fn) {
412: if($newfilename) {
413: # is dest a dir
414: if (-d $newfilename) {
415: if ($fn =~ m|/([^/]*)$|) { $newfilename .= '/'.$1; }
416: }
417: if ($newfilename =~ m|/[^\.]+$|) {
418: #no extension add on original extension
419: if ($fn =~ m|/[^\.]*\.([^\.]+)$|) {
420: $newfilename.='.'.$1;
421: }
422: }
423: $request->print(&checksuffix($fn, $newfilename));
424: #renaming a dir, delete the trailing /
425: #remove second to last element for current dir
426: if (-d $fn) {
427: $newfilename=~s/\/[^\/]+\/([^\/]+)$/\/$1/;
428: }
429: $newfilename=~s://+:/:g; # remove duplicate /
430: while ($newfilename=~m:/\.\./:) {
431: $newfilename=~ s:/[^/]+/\.\./:/:g; #remove dir/..
432: }
433: my $return=&exists($user, $domain, $newfilename);
434: $request->print($return);
435: if ($return =~/^Error:/) {
436: $request->print('<br /><a href="'.&url($fn).'">'.&mt('Cancel').'</a>');
437: return;
438: }
439: unless (&obsolete_unpub($user,$domain,$fn)) {
440: $request->print('<h3>'.&mt('Cannot rename or move non-obsolete published file').'</h3>'.
441: '<br /><a href="'.&url($fn).'">'.&mt('Cancel').'</a>');
442: return;
443: }
444: $request->print('<input type="hidden" name="newfilename" value="'.
445: $newfilename.
446: '" /><p>'.&mt('Rename').' '.&display($fn).
447: '</tt><br />to '.&display($newfilename).'?</p>');
448: &CloseForm1($request, $fn);
449: } else {
450: $request->print('<p>'.&mt('No new filename specified.').'</p></form>');
451: return;
452: }
453: } else {
454: $request->print('<p> '.&mt('No such file').': '.&display($fn).'</p></form>');
455: return;
456: }
457:
458: }
459: =pod
460:
461: =item Delete1
462:
463: Performs phase 1 processing of the delete operation. In phase one
464: we just check to be sure the file exists.
465:
466: Parameters:
467:
468: =over 4
469:
470: =item $request - Apache Request Object [in] request object for the current
471: request.
472:
473: =item $user - string [in] Name of the user initiating the request.
474:
475: =item $domain - string [in] Domain the initiating user is logged in as
476:
477: =item $filename - string [in] Source filename.
478:
479: =back
480:
481: =cut
482:
483: sub Delete1 {
484: my ($request, $user, $domain, $fn) = @_;
485:
486: if( -e $fn) {
487: $request->print('<input type="hidden" name="newfilename" value="'.
488: $fn.'"/>');
489: unless (&obsolete_unpub($user,$domain,$fn)) {
490: $request->print('<h3>'.&mt('Cannot delete non-obsolete published file').'</h3>'.
491: '<br /><a href="'.&url($fn).'">'.&mt('Cancel').'</a>');
492: return;
493: }
494: $request->print('<p>'.&mt('Delete').' '.&display($fn).'?</p>');
495: &CloseForm1($request, $fn);
496: } else {
497: $request->print('<p>'.&mt('No such file').': '.&display($fn).'</p></form>');
498: }
499: }
500:
501: =pod
502:
503: =item Copy1($request, $user, $domain, $filename, $newfilename)
504:
505: Performs phase 1 processing of the construction space copy command.
506: Ensure that the source file exists. Ensure that a destination exists,
507: also warn if the destination already exists.
508:
509: Parameters:
510:
511: =over 4
512:
513: =item $request - Apache Request Object [in] request object for the current
514: request.
515:
516: =item $user - string [in] Name of the user initiating the request.
517:
518: =item $domain - string [in] Domain the initiating user is logged in as
519:
520: =item $fn - string [in] Source filename.
521:
522: =item $newfilename-string [in] Destination filename.
523:
524: =back
525:
526: =cut
527:
528: sub Copy1 {
529: my ($request, $user, $domain, $fn, $newfilename) = @_;
530:
531: if(-e $fn) {
532: # is dest a dir
533: if (-d $newfilename) {
534: if ($fn =~ m|/([^/]*)$|) { $newfilename .= '/'.$1; }
535: }
536: if ($newfilename =~ m|/[^\.]+$|) {
537: #no extension add on original extension
538: if ($fn =~ m|/[^\.]*\.([^\.]+)$|) { $newfilename.='.'.$1; }
539: }
540: $newfilename=~s://+:/:g; # remove duplicate /
541: while ($newfilename=~m:/\.\./:) {
542: $newfilename=~ s:/[^/]+/\.\./:/:g; #remove dir/..
543: }
544: $request->print(&checksuffix($fn,$newfilename));
545: my $return=&exists($user, $domain, $newfilename);
546: $request->print($return);
547: if ($return =~/^Error:/) {
548: $request->print('<br /><a href="'.&url($fn).'">'.&mt('Cancel').'</a>');
549: return;
550: }
551: $request->print('<input type="hidden" name="newfilename" value="'.
552: $newfilename.
553: '" /><p>'.&mt('Copy').' '.&display($fn).'<br />to '.
554: &display($newfilename).'?</p>');
555: &CloseForm1($request, $fn);
556: } else {
557: $request->print('<p>'.&mt('No such file').': '.&display($fn).'</p></form>');
558: }
559: }
560:
561: =pod
562:
563: =item NewDir1
564:
565: Does all phase 1 processing of directory creation:
566: Ensures that the user provides a new directory name,
567: and that the directory does not already exist.
568:
569: Parameters:
570:
571: =over 4
572:
573: =item $request - Apache Request Object [in] - Server request object for the
574: current url.
575:
576: =item $username - Name of the user that is requesting the directory creation.
577:
578: =item $domain - Domain user is in
579:
580: =item $fn - source file.
581:
582: =item $newdir - Name of the directory to be created; path relative to the
583: top level of construction space.
584: =back
585:
586: Side Effects:
587:
588: =over 4
589:
590: =item A new form is displayed. Clicking on the confirmation button
591: causes the newdir operation to transition into phase 2. The hidden field
592: "newfilename" is set with the construction space path to the new directory.
593:
594:
595: =back
596:
597: =cut
598:
599:
600: sub NewDir1
601: {
602: my ($request, $username, $domain, $fn, $newfilename) = @_;
603:
604: my $result=&exists($username,$domain,$newfilename);
605: if ($result) {
606: $request->print('<font color="red">'.$result.'</font></form>');
607: } else {
608: $request->print('<input type="hidden" name="newfilename" value="'.
609: $newfilename.'" /><p>'.&mt('Make new directory').' '.
610: &display($newfilename).'?</p>');
611: &CloseForm1($request, $fn);
612: }
613: }
614:
615:
616: sub Decompress1 {
617: my ($request, $user, $domain, $fn) = @_;
618: if( -e $fn) {
619: $request->print('<input type="hidden" name="newfilename" value="'.$fn.'"/>');
620: $request->print('<p>'.&mt('Decompress').' '.&display($fn).'?</p>');
621: &CloseForm1($request, $fn);
622: } else {
623: $request->print('<p>'.&mt('No such file').': '.&display($fn).'</p></form>');
624: }
625: }
626: =pod
627:
628: =item NewFile1
629:
630: Does all phase 1 processing of file creation:
631: Ensures that the user provides a new filename, adds proper extension
632: if needed and that the file does not already exist, if it is a html,
633: problem, page, or sequence, it then creates a form link to hand the
634: actual creation off to the proper handler.
635:
636: Parameters:
637:
638: =over 4
639:
640: =item $request - Apache Request Object [in] - Server request object for the
641: current url.
642:
643: =item $username - Name of the user that is requesting the directory creation.
644:
645: =item $domain - Name of the domain of the user
646:
647: =item $fn - Source file name
648:
649: =item $newfilename
650: - Name of the file to be created; no path information
651: =back
652:
653: Side Effects:
654:
655: =over 4
656:
657: =item 2 new forms are displayed. Clicking on the confirmation button
658: causes the browser to attempt to load the specfied URL, allowing the
659: proper handler to take care of file creation. There is also a Cancel
660: button which returns you to the driectory listing you came from
661:
662: =back
663:
664: =cut
665:
666:
667: sub NewFile1 {
668: my ($request, $user, $domain, $fn, $newfilename) = @_;
669:
670: if ($ENV{'form.action'} =~ /new(.+)file/) {
671: my $extension=$1;
672:
673: ##Informs User (name).(number).(extension) not allowed
674: if($newfilename =~ /\.(\d+)\.(\w+)$/){
675: $r->print('<font color="red">'.$newfilename.
676: ' - '.&mt('Bad Filename').'<br />('.&mt('name').').('.&mt('number').').('.&mt('extension').')'.
677: ' '.&mt('Not Allowed').'</font>');
678: return;
679: }
680: if ($newfilename !~ /\Q.$extension\E$/) {
681: if ($newfilename =~ m|^[^\.]*\.([^\.]+)$|) {
682: #already has an extension strip it and add in expected one
683: $newfilename =~ s|.([^\.]+)$||;
684: }
685: $newfilename.=".$extension";
686: }
687: }
688: my $result=&exists($user,$domain,$newfilename);
689: if($result) {
690: $request->print('<font color="red">'.$result.'</font></form>');
691: } else {
692: $request->print('<p>'.&mt('Make new file').' '.&display($newfilename).'?</p>');
693: $request->print('</form>');
694: $request->print('<form action="'.&url($newfilename).
695: '" method="POST"><p><input type="submit" value="'.&mt('Continue').'" /></p></form>');
696: $request->print('<form action="'.&url($fn).
697: '" method="POST"><p><input type="submit" value="'.&mt('Cancel').'" /></p></form>');
698: }
699: }
700:
701: =pod
702:
703: =item phaseone($r, $fn, $uname, $udom)
704:
705: Peforms phase one processing of the request. In phase one, error messages
706: are returned if the request cannot be performed (e.g. attempts to manipulate
707: files that are nonexistent). If the operation can be performed, what is
708: about to be done will be presented to the user for confirmation. If the
709: user confirms the request, then phase two is executed, the action
710: performed and reported to the user.
711:
712: Parameters:
713:
714: =over 4
715:
716: =item $r - request object [in] - The Apache request being executed.
717:
718: =item $fn = string [in] - The filename being manipulated by the
719: request.
720:
721: =item $uname - string [in] Name of user logged in and doing this action.
722:
723: =item $udom - string [in] Domain name under which the user logged in.
724:
725: =back
726:
727: =cut
728:
729: sub phaseone {
730: my ($r,$fn,$uname,$udom)=@_;
731:
732: my $newfilename=&cleanDest($r,$ENV{'form.newfilename'});
733: $newfilename=&relativeDest($fn,$newfilename,$uname);
734: $r->print('<form action="/adm/cfile" method="post">'.
735: '<input type="hidden" name="qualifiedfilename" value="'.$fn.'" />'.
736: '<input type="hidden" name="phase" value="two" />'.
737: '<input type="hidden" name="action" value="'.$ENV{'form.action'}.'" />');
738:
739: if ($ENV{'form.action'} eq 'rename') {
740: &Rename1($r, $uname, $udom, $fn, $newfilename);
741: } elsif ($ENV{'form.action'} eq 'delete') {
742: &Delete1($r, $uname, $udom, $fn);
743: } elsif ($ENV{'form.action'} eq 'decompress') {
744: &Decompress1($r, $uname, $udom, $fn);
745: } elsif ($ENV{'form.action'} eq 'copy') {
746: if($newfilename) {
747: &Copy1($r, $uname, $udom, $fn, $newfilename);
748: } else {
749: $r->print('<p>'.&mt('No new filename specified.').'</p></form>');
750: }
751: } elsif ($ENV{'form.action'} eq 'newdir') {
752: &NewDir1($r, $uname, $udom, $fn, $newfilename);
753: } elsif ($ENV{'form.action'} eq 'newfile' ||
754: $ENV{'form.action'} eq 'newhtmlfile' ||
755: $ENV{'form.action'} eq 'newproblemfile' ||
756: $ENV{'form.action'} eq 'newpagefile' ||
757: $ENV{'form.action'} eq 'newsequencefile' ||
758: $ENV{'form.action'} eq 'newrightsfile' ||
759: $ENV{'form.action'} eq 'newstyfile' ||
760: $ENV{'form.action'} eq 'Select Action') {
761: if ($newfilename) {
762: &NewFile1($r, $uname, $udom, $fn, $newfilename);
763: } else {
764: $r->print('<p>'.&mt('No new filename specified.').'</p></form>');
765: }
766: }
767: }
768:
769: =pod
770:
771: =item Rename2($request, $user, $directory, $oldfile, $newfile)
772:
773: Performs phase 2 processing of a rename reequest. This is where the
774: actual rename is performed.
775:
776: Parameters
777:
778: =over 4
779:
780: =item $request - Apache request object [in] The request being processed.
781:
782: =item $user - string [in] The name of the user initiating the request.
783:
784: =item $directory - string [in] The name of the directory relative to the
785: construction space top level of the renamed file.
786:
787: =item $oldfile - Name of the file.
788:
789: =item $newfile - Name of the new file.
790:
791: =back
792:
793: Returns:
794:
795: =over 4
796:
797: =item 1 Success.
798:
799: =item 0 Failure.
800:
801: =cut
802:
803: sub Rename2 {
804:
805: my ($request, $user, $directory, $oldfile, $newfile) = @_;
806:
807: &Debug($request, "Rename2 directory: ".$directory." old file: ".$oldfile.
808: " new file ".$newfile."\n");
809: &Debug($request, "Target is: ".$directory.'/'.
810: $newfile);
811: if (-e $oldfile) {
812:
813: my $oRN=$oldfile;
814: my $nRN=$newfile;
815: unless (rename($oldfile,$newfile)) {
816: $request->print('<font color="red">'.&mt('Error').': '.$!.'</font>');
817: return 0;
818: }
819: ## If old name.(extension) exits, move under new name.
820: ## If it doesn't exist and a new.(extension) exists
821: ## delete it (only concern when renaming over files)
822: my $tmp1=$oRN.'.meta';
823: my $tmp2=$nRN.'.meta';
824: if(-e $tmp1){
825: unless(rename($tmp1,$tmp2)){ }
826: } elsif(-e $tmp2){
827: unlink $tmp2;
828: }
829: $tmp1=$oRN.'.save';
830: $tmp2=$nRN.'.save';
831: if(-e $tmp1){
832: unless(rename($tmp1,$tmp2)){ }
833: } elsif(-e $tmp2){
834: unlink $tmp2;
835: }
836: $tmp1=$oRN.'.log';
837: $tmp2=$nRN.'.log';
838: if(-e $tmp1){
839: unless(rename($tmp1,$tmp2)){ }
840: } elsif(-e $tmp2){
841: unlink $tmp2;
842: }
843: $tmp1=$oRN.'.bak';
844: $tmp2=$nRN.'.bak';
845: if(-e $tmp1){
846: unless(rename($tmp1,$tmp2)){ }
847: } elsif(-e $tmp2){
848: unlink $tmp2;
849: }
850: } else {
851: $request->print("<p> ".&mt('No such file').": ".&display($oldfile).'</p></form>');
852: return 0;
853: }
854: return 1;
855: }
856: =pod
857:
858: =item Delete2($request, $user, $filename)
859:
860: Performs phase two of a delete. The user has confirmed that they want
861: to delete the selected file. The file is deleted and the results of the
862: delete attempt are indicated.
863:
864: Parameters:
865:
866: =over 4
867:
868: =item $request - Apache Request object [in] the request object for the current
869: delete operation.
870:
871: =item $user - string [in] The name of the user initiating the delete
872: request.
873:
874: =item $filename - string [in] The name of the file, relative to construction
875: space, to delete.
876:
877: =back
878:
879: Returns:
880: 1 - success.
881: 0 - Failure.
882:
883: =cut
884:
885: sub Delete2 {
886: my ($request, $user, $filename) = @_;
887: if(opendir DIR, $filename) {
888: my @files=readdir(DIR);
889: shift @files; shift @files; # takes off . and ..
890: if(@files) {
891: $request->print('<font color="red"> '.&mt('Error: Directory Non Empty').'</font>');
892: return 0;
893: } else {
894: if(-e $filename) {
895: unless(rmdir($filename)) {
896: $request->print('<font color="red">'.&mt('Error').': '.$!.'</font>');
897: return 0;
898: }
899: } else {
900: $request->print('<p> '.&mt('No such file').'. </p></form>');
901: return 0;
902: }
903: }
904: } else {
905: if(-e $filename) {
906: unless(unlink($filename)) {
907: $request->print('<font color="red">'.&mt('Error').': '.$!.'</font>');
908: return 0;
909: }
910: } else {
911: $request->print('<p> '.&mt('No such file').'. </p></form>');
912: return 0;
913: }
914: }
915: return 1;
916: }
917:
918: =pod
919:
920: =item Copy2($request, $username, $dir, $oldfile, $newfile)
921:
922: Performs phase 2 of a copy. The file is copied and the status
923: of that copy is reported back to the user.
924:
925: =over 4
926:
927: =item $request - Apache request object [in]; the apache request currently
928: being executed.
929:
930: =item $username - string [in] Name of the user who is requesting the copy.
931:
932: =item $dir - string [in] Directory path relative to the construction space
933: of the destination file.
934:
935: =item $oldfile - string [in] Name of the source file.
936:
937: =item $newfile - string [in] Name of the destination file.
938:
939:
940: =back
941:
942: Returns 0 failure, and 0 successs.
943:
944: =cut
945:
946: sub Copy2 {
947: my ($request, $username, $dir, $oldfile, $newfile) = @_;
948: &Debug($request ,"Will try to copy $oldfile to $newfile");
949: if(-e $oldfile) {
950: unless (copy($oldfile, $newfile)) {
951: $request->print('<font color="red"> '.&mt('copy Error').': '.$!.'</font>');
952: return 0;
953: } else {
954: unless (chmod(0660, $newfile)) {
955: $request->print('<font color="red"> '.&mt('chmod error').': '.$!.'</font>');
956: return 0;
957: }
958: return 1;
959: }
960: } else {
961: $request->print('<p> '.&mt('No such file').' </p>');
962: return 0;
963: }
964: return 1;
965: }
966: =pod
967:
968: =item NewDir2($request, $user, $newdirectory)
969:
970: Performs phase 2 processing of directory creation. This involves creating the directory and
971: reporting the results of that creation to the user.
972:
973: Parameters:
974: =over 4
975:
976: =item $request - Apache request object [in]. Object representing the current HTTP request.
977:
978: =item $user - string [in] The name of the user that is initiating the request.
979:
980: =item $newdirectory - string [in] The full path of the directory being created.
981:
982: =back
983:
984: Returns 0 - failure 1 - success.
985:
986: =cut
987:
988: sub NewDir2 {
989: my ($request, $user, $newdirectory) = @_;
990:
991: unless(mkdir($newdirectory, 02770)) {
992: $request->print('<font color="red">'.&mt('Error').': '.$!.'</font>');
993: return 0;
994: }
995: unless(chmod(02770, ($newdirectory))) {
996: $request->print('<font color="red"> '.&mt('Error').': '.$!.'</font>');
997: return 0;
998: }
999: return 1;
1000: }
1001: sub decompress2 {
1002: my ($r, $user, $dir, $file) = @_;
1003: &Apache::lonnet::appenv('cgi.file' => $file);
1004: &Apache::lonnet::appenv('cgi.dir' => $dir);
1005: my $result=&Apache::lonnet::ssi_body('/cgi-bin/decompress.pl');
1006: $r->print($result);
1007: &Apache::lonnet::delenv('cgi.file');
1008: &Apache::lonnet::delenv('cgi.dir');
1009: return 1;
1010: }
1011: =pod
1012:
1013: =item phasetwo($r, $fn, $uname, $udom)
1014:
1015: Controls the phase 2 processing of file management
1016: requests for construction space. In phase one, the user
1017: was asked to confirm the operation. In phase 2, the operation
1018: is performed and the result is shown.
1019:
1020: The strategy is to break out the processing into specific action processors
1021: named action2 where action is the requested action and the 2 denotes
1022: phase 2 processing.
1023:
1024: Parameters:
1025:
1026: =over 4
1027:
1028: =item $r - Apache Request object [in] The request object for this httpd
1029: transaction.
1030:
1031: =item $fn - string [in] A filename indicating the object that is being
1032: manipulated.
1033:
1034: =item $uname - string [in] The name of the user initiating the file management
1035: request.
1036:
1037: =item $udom - string [in] The login domain of the user initiating the
1038: file management request.
1039: =back
1040:
1041: =cut
1042:
1043: sub phasetwo {
1044: my ($r,$fn,$uname,$udom)=@_;
1045:
1046: &Debug($r, "loncfile - Entering phase 2 for $fn");
1047:
1048: # Break down the file into it's component pieces.
1049:
1050: my $dir; # Directory path
1051: my $main; # Filename.
1052: my $suffix; # Extension.
1053: if ($fn=~m:(.*)/([^/]+):) {
1054: $dir=$1; # Directory path
1055: $main=$2; # Filename.
1056: }
1057: if($main=~m:\.(\w+)$:){ # Fixes problems with filenames with no extensions
1058: $main=$`; #This is what is before the match (.) so it's just the main filename, yea it's nasty
1059: $suffix=$1; #This is the actually filename extension if it exists
1060: }
1061: my $dest; # On success this is where we'll go.
1062:
1063: &Debug($r,
1064: "loncfile::phase2 dir = $dir main = $main suffix = $suffix");
1065: &Debug($r,
1066: " newfilename = ".$ENV{'form.newfilename'});
1067:
1068: my $conspace=$fn;
1069:
1070: &Debug($r,
1071: "loncfile::phase2 Full construction space name: $conspace");
1072:
1073: &Debug($r,
1074: "loncfie::phase2 action is $ENV{'form.action'}");
1075:
1076: # Select the appropriate processing sub.
1077: if ($ENV{'form.action'} eq 'decompress') {
1078: $main .= '.';
1079: $main .= $suffix;
1080: if(!&decompress2($r, $uname, $dir, $main)) {
1081: return ;
1082: }
1083: $dest = $dir."/.";
1084:
1085:
1086: } elsif ($ENV{'form.action'} eq 'rename') { # Rename.
1087: if($ENV{'form.newfilename'}) {
1088: if (!defined($dir)) {
1089: $fn=~m:^(.*)/:;
1090: $dir=$1;
1091: }
1092: if(!&Rename2($r, $uname, $dir, $fn, $ENV{'form.newfilename'})) {
1093: return;
1094: }
1095: $dest = &url($ENV{'form.newfilename'});
1096: }
1097: } elsif ($ENV{'form.action'} eq 'delete') {
1098: if(!&Delete2($r, $uname, $ENV{'form.newfilename'})) {
1099: return ;
1100: }
1101: # Once a resource is deleted, we just list the directory that
1102: # previously held it.
1103: #
1104: $dest = $dir."/."; # Parent dir.
1105: } elsif ($ENV{'form.action'} eq 'copy') {
1106: if($ENV{'form.newfilename'}) {
1107: if(!&Copy2($r, $uname, $dir, $fn, $ENV{'form.newfilename'})) {
1108: return ;
1109: }
1110: $dest = $ENV{'form.newfilename'};
1111:
1112: } else {
1113: $r->print('<p>'.&mt('No New filename specified').'</p></form>');
1114: return;
1115: }
1116:
1117: } elsif ($ENV{'form.action'} eq 'newdir') {
1118: my $newdir= $ENV{'form.newfilename'};
1119: if(!&NewDir2($r, $uname, $newdir)) {
1120: return;
1121: }
1122: $dest = $newdir."/"
1123: }
1124: $r->print('<h3><a href="'.&url($dest).'">'.&mt('Done').'</a></h3>');
1125: }
1126:
1127: sub handler {
1128:
1129: $r=shift;
1130:
1131:
1132: &Debug($r, "loncfile.pm - handler entered");
1133: &Debug($r, " filename: ".$ENV{'form.filename'});
1134: &Debug($r, " newfilename: ".$ENV{'form.newfilename'});
1135: #
1136: # Determine the root filename
1137: # This could come in as "filename", which actually is a URL, or
1138: # as "qualifiedfilename", which is indeed a real filename in filesystem
1139: #
1140: my $fn;
1141:
1142: if ($ENV{'form.filename'}) {
1143:
1144: &Debug($r, "test: $ENV{'form.filename'}");
1145: $fn=&Apache::lonnet::unescape($ENV{'form.filename'});
1146: $fn=&URLToPath($fn);
1147: }
1148: #Just hijack the script only the first time around to inject the correct information for further processing
1149: elsif($ENV{'QUERY_STRING'} && $ENV{'form.phase'} ne 'two') {
1150: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['decompress']);
1151: $fn=&Apache::lonnet::unescape($ENV{'form.decompress'});
1152: $fn=&URLToPath($fn);
1153: $ENV{'form.action'}="decompress";
1154: }
1155:
1156: elsif ($ENV{'form.qualifiedfilename'}) {
1157: $fn=$ENV{'form.qualifiedfilename'};
1158: } else {
1159: &Debug($r, "loncfile::handler - no form.filename");
1160: $r->log_reason($ENV{'user.name'}.' at '.$ENV{'user.domain'}.
1161: ' unspecified filename for cfile', $r->filename);
1162: return HTTP_NOT_FOUND;
1163: }
1164:
1165: unless ($fn) {
1166: &Debug($r, "loncfile::handler - doctored url is empty");
1167: $r->log_reason($ENV{'user.name'}.' at '.$ENV{'user.domain'}.
1168: ' trying to cfile non-existing file', $r->filename);
1169: return HTTP_NOT_FOUND;
1170: }
1171:
1172: # ----------------------------------------------------------- Start page output
1173: my $uname;
1174: my $udom;
1175:
1176: ($uname,$udom)=
1177: &Apache::loncacc::constructaccess($fn,$r->dir_config('lonDefDomain'));
1178: &Debug($r,
1179: "loncfile::handler constructaccess uname = $uname domain = $udom");
1180: unless (($uname) && ($udom)) {
1181: $r->log_reason($uname.' at '.$udom.
1182: ' trying to manipulate file '.$ENV{'form.filename'}.
1183: ' ('.$fn.') - not authorized',
1184: $r->filename);
1185: return HTTP_NOT_ACCEPTABLE;
1186: }
1187:
1188:
1189: &Apache::loncommon::content_type($r,'text/html');
1190: $r->send_http_header;
1191:
1192: $r->print('<html><head><title>LON-CAPA Construction Space</title></head>');
1193:
1194: $r->print(&Apache::loncommon::bodytag('Construction Space File Operation'));
1195:
1196:
1197: $r->print('<h3>'.&mt('Location').': '.&display($fn).'</h3>');
1198:
1199: if (($uname ne $ENV{'user.name'}) || ($udom ne $ENV{'user.domain'})) {
1200: $r->print('<h3><font color="red">'.&mt('Co-Author').': '.$uname.' at '.$udom.
1201: '</font></h3>');
1202: }
1203:
1204:
1205: &Debug($r, "loncfile::handler Form action is $ENV{'form.action'} ");
1206: if ($ENV{'form.action'} eq 'delete') {
1207:
1208: $r->print('<h3>'.&mt('Delete').'</h3>');
1209: } elsif ($ENV{'form.action'} eq 'rename') {
1210: $r->print('<h3>'.&mt('Rename').'</h3>');
1211: } elsif ($ENV{'form.action'} eq 'newdir') {
1212: $r->print('<h3>'.&mt('New Directory').'</h3>');
1213: } elsif ($ENV{'form.action'} eq 'decompress') {
1214: $r->print('<h3>'.&mt('Decompress').'</h3>');
1215: } elsif ($ENV{'form.action'} eq 'copy') {
1216: $r->print('<h3>'.&mt('Copy').'</h3>');
1217: } elsif ($ENV{'form.action'} eq 'newfile' ||
1218: $ENV{'form.action'} eq 'newhtmlfile' ||
1219: $ENV{'form.action'} eq 'newproblemfile' ||
1220: $ENV{'form.action'} eq 'newpagefile' ||
1221: $ENV{'form.action'} eq 'newsequencefile' ||
1222: $ENV{'form.action'} eq 'newrightsfile' ||
1223: $ENV{'form.action'} eq 'newstyfile' ||
1224: $ENV{'form.action'} eq 'Select Action' ) {
1225: $r->print('<h3>'.&mt('New Resource').'</h3>');
1226: } else {
1227: $r->print('<p>'.&mt('Unknown Action').' '.$ENV{'form.action'}.' </p></body></html>');
1228: return OK;
1229: }
1230: if ($ENV{'form.phase'} eq 'two') {
1231: &Debug($r, "loncfile::handler entering phase2");
1232: &phasetwo($r,$fn,$uname,$udom);
1233: } else {
1234: &Debug($r, "loncfile::handler entering phase1");
1235: &phaseone($r,$fn,$uname,$udom);
1236: }
1237:
1238: $r->print('</body></html>');
1239: return OK;
1240: }
1241:
1242: 1;
1243: __END__
1244:
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