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: #
13: # $Id: loncfile.pm,v 1.20 2002/11/27 17:05:50 albertel Exp $
14: #
15: # Copyright Michigan State University Board of Trustees
16: #
17: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
18: #
19: # LON-CAPA is free software; you can redistribute it and/or modify
20: # it under the terms of the GNU General Public License as published by
21: # the Free Software Foundation; either version 2 of the License, or
22: # (at your option) any later version.
23: #
24: # LON-CAPA is distributed in the hope that it will be useful,
25: # but WITHOUT ANY WARRANTY; without even the implied warranty of
26: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
27: # GNU General Public License for more details.
28: #
29: # You should have received a copy of the GNU General Public License
30: # along with LON-CAPA; if not, write to the Free Software
31: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
32: #
33: # /home/httpd/html/adm/gpl.txt
34: #
35: # http://www.lon-capa.org/
36: #
37: #
38: # (Handler to retrieve an old version of a file
39: #
40: # (Publication Handler
41: #
42: # (TeX Content Handler
43: #
44: # 05/29/00,05/30,10/11 Gerd Kortemeyer)
45: #
46: # 11/28,11/29,11/30,12/01,12/02,12/04,12/23 Gerd Kortemeyer
47: # 03/23 Guy Albertelli
48: # 03/24,03/29 Gerd Kortemeyer)
49: #
50: # 03/31,04/03,05/02,05/09,06/23,06/24 Gerd Kortemeyer)
51: #
52: # 06/23 Gerd Kortemeyer
53: # 05/07/02 Ron Fox:
54: # - Added Debug log output so that I can trace what the heck this
55: # undocumented thingy does.
56: # 05/28/02 Ron Fox:
57: # - Started putting in pod in standard format.
58: =pod
59:
60: =head1 NAME
61:
62: Apache::loncfile - Construction space file management.
63:
64: =head1 SYNOPSIS
65:
66: Content handler for buttons on the top frame of the construction space
67: directory.
68:
69: =head1 INTRODUCTION
70:
71: loncfile is invoked when buttons in the top frame of the construction
72: space directory listing are clicked. All operations proceed in two phases.
73: The first phase describes to the user exactly what will be done. If the user
74: confirms the operation, the second phase commits the operation and indicates
75: completion. When the user dismisses the output of phase2, they are returned to
76: an "appropriate" directory listing in general.
77:
78: This is part of the LearningOnline Network with CAPA project
79: described at http://www.lon-capa.org.
80:
81: =head2 Subroutines
82:
83: =cut
84:
85: package Apache::loncfile;
86:
87: use strict;
88: use Apache::File;
89: use File::Basename;
90: use File::Copy;
91: use HTML::Entities();
92: use Apache::Constants qw(:common :http :methods);
93: use Apache::loncacc;
94: use Apache::Log ();
95: use Apache::lonnet;
96:
97: my $DEBUG=0;
98: my $r; # Needs to be global for some stuff RF.
99:
100: =pod
101:
102: =item Debug($request, $message)
103:
104: If debugging is enabled puts out a debugging message determined by the
105: caller. The debug message goes to the Apache error log file. Debugging
106: is enabled by setting the module global DEBUG variable to nonzero (TRUE).
107:
108: Parameters:
109:
110: =over 4
111:
112: =item $request - The current request operation.
113:
114: =item $message - The message to put in the log file.
115:
116: =back
117:
118: Returns:
119: nothing.
120:
121: =cut
122:
123: sub Debug {
124:
125: # Marshall the parameters.
126:
127: my $r = shift;
128: my $log = $r->log;
129: my $message = shift;
130:
131: # Put out the indicated message butonly if DEBUG is false.
132:
133: if ($DEBUG) {
134: $log->debug($message);
135: }
136: }
137:
138: =pod
139:
140: =item URLToPath($url)
141:
142: Convert a URL to a file system path.
143:
144: In order to manipulate the construction space objects, it is necessary
145: to access url identified objects a filespace objects. This function
146: translates a construction space URL to a file system path.
147: Parameters:
148:
149: =over 4
150:
151: =item Url - string [in] The url to convert.
152:
153: =back
154:
155: Returns:
156:
157: =over 4
158:
159: =item The corresponding file system path.
160:
161: =back
162:
163: Global References
164:
165: =over 4
166:
167: =item $r - Request object [in] Referenced in the &Debug calls.
168:
169: =back
170:
171: =cut
172:
173: sub URLToPath {
174: my $Url = shift;
175: &Debug($r, "UrlToPath got: $Url");
176: $Url=~ s/^http\:\/\/[^\/]+\/\~(\w+)/\/home\/$1\/public_html/;
177: $Url=~ s/^http\:\/\/[^\/]+//;
178: &Debug($r, "Returning $Url \n");
179: return $Url;
180: }
181:
182: =pod
183:
184: =item PublicationPath($domain, $user, $dir, $file)
185:
186: Determines the filesystem path corresponding to a published resource
187: specification. The returned value is the path.
188: Parameters:
189:
190: =over 4
191:
192: =item $domain - string [in] Name of the domain within which the resource is
193: stored.
194:
195: =item $user - string [in] Name of the user asking about the resource.
196:
197: =item $dir - Directory path relative to the top of the resource space.
198:
199: =item $file - name of the resource file itself without path info.
200:
201: =back
202:
203: =over 4
204:
205: Returns:
206:
207: =item string - full path to the file if it exists in publication space.
208:
209: =back
210:
211: =cut
212:
213: sub PublicationPath
214: {
215: my ($domain, $user, $dir, $file)=@_;
216:
217: return '/home/httpd/html/res/'.$domain.'/'.$user.'/'.$dir.'/'.
218: $file;
219: }
220:
221: =pod
222:
223: =item ConstructionPath($domain, $user, $dir, $file)
224:
225: Determines the filesystem path corresponding to a construction space
226: resource specification. The returned value is the path
227: Parameters:
228:
229: =over 4
230:
231: =item $user - string [in] Name of the user asking about the resource.
232:
233: =item $dir - Directory path relative to the top of the resource space.
234:
235: =item $file - name of the resource file itself without path info.
236:
237: Returns:
238:
239: =item string - full path to the file if it exists in Construction space.
240:
241: =back
242:
243: =cut
244:
245: sub ConstructionPath {
246: my ($user, $dir, $file) = @_;
247:
248: return '/home/'.$user.'/public_html/'.$dir.'/'.$file;
249:
250: }
251: =pod
252:
253: =item ConstructionPathFromRelative($user, $relname)
254:
255: Determines the path to a construction space file given
256: the username and the path relative to the root of construction space.
257:
258: Parameters:
259:
260: =over 4
261:
262: =item $user - string [in] Name of the user in whose construction space the
263: file [will] live.
264:
265: =item $relname - string[in] Path to the file relative to the root of the
266: construction space.
267:
268: =back
269:
270: Returns:
271:
272: =over 4
273:
274: =item string - Full path to the file.
275:
276: =back
277:
278: =cut
279:
280: sub ConstructionPathFromRelative {
281:
282: my ($user, $relname) = @_;
283: return '/home/'.$user.'/public_html'.$relname;
284:
285: }
286:
287: =pod
288:
289: =item exists($user, $domain, $directory, $file)
290:
291: Determine if a resource file name has been published or exists
292: in the construction space.
293:
294: Parameters:
295:
296: =over 4
297:
298: =item $user - string [in] - Name of the user for which to check.
299:
300: =item $domain - string [in] - Name of the domain in which the resource
301: might have been published.
302:
303: =item $dir - string [in] - Path relative to construction or resource space
304: in which the resource might live.
305:
306: =item $file - string [in] - Name of the file.
307:
308: =back
309:
310: Returns:
311:
312: =over 4
313:
314: =item string - Either where the resource exists as an html string that can
315: be embedded in a dialog or an empty string if the resource
316: does not exist.
317:
318: =back
319:
320: =cut
321:
322: sub exists {
323: my ($user, $domain, $dir, $file) = @_;
324:
325: # Create complete paths in publication and construction space.
326:
327: my $published = &PublicationPath($domain, $user, $dir, $file);
328: my $construct = &ConstructionPath($user, $dir, $file);
329:
330: # If the resource exists in either space indicate this fact.
331: # Note that the check for existence in resource space is stricter.
332:
333: my $result;
334: if ( -e $published) {
335: $result.='<p><font color=red>Warning: target file exists, and has been published!</font></p>';
336: }
337: elsif ( -e $construct) {
338: $result.='<p><font color=red>Warning: target file exists!</font></p>';
339: }
340:
341: return $result;
342:
343: }
344:
345: =pod
346:
347: =item checksuffix($old, $new)
348:
349: Determine if a resource filename suffix (the stuff after the .) would change
350: as a result of this operation.
351:
352: Parameters:
353:
354: =over 4
355:
356: =item $old = string [in] Previous filename.
357:
358: =item $new = string [in] Resultant filename.
359:
360: =back
361:
362: Returns:
363:
364: =over 4
365:
366: =item Empty string if everything worked.
367:
368: =item String containing an error message if there was a problem.
369:
370: =back
371:
372: =cut
373:
374: sub checksuffix {
375: my ($old,$new) = @_;
376: my $result;
377: my $oldsuffix;
378: my $newsuffix;
379: if ($new=~m:(.*/*)([^/]+)\.(\w+)$:) { $newsuffix=$3; }
380: if ($old=~m:(.*)/+([^/]+)\.(\w+)$:) { $oldsuffix=$3; }
381: if ($oldsuffix ne $newsuffix) {
382: $result.=
383: '<p><font color=red>Warning: change of MIME type!</font></p>';
384: }
385: return $result;
386: }
387: =pod
388:
389: =item CloseForm1($request, $user, $file)
390:
391: Close of a form on the successful completion of phase 1 processing
392:
393: Parameters:
394:
395: =over 4
396:
397: =item $request - Apache Request Object [in] - Apache server request object.
398:
399: =item $cancelurl - the url to go to on cancel.
400:
401: =back
402:
403: =cut
404:
405: sub CloseForm1 {
406: my ($request, $cancelurl) = @_;
407:
408:
409: &Debug($request, "Cancel url is: ".$cancelurl);
410: $request->print('<p><input type=submit value=Continue></p></form>');
411: $request->print('<form action="'.$cancelurl.
412: '" method=GET"><p><input type=submit value=Cancel><p></form>');
413:
414: }
415:
416:
417: =pod
418:
419: =item CloseForm2($request, $user, $directory)
420:
421: Successfully close off the phase 2 form.
422:
423: Parameters:
424:
425: =over 4
426:
427: =item $request - Apache Request object [in] - The request that is being
428: executed.
429:
430: =item $user - string [in] - Name of the user that is initiating the
431: request.
432:
433: =item $directory - string [in] - Directory in which the operation is
434: being done relative to the top level construction space
435: directory.
436:
437: =back
438:
439: =cut
440:
441: sub CloseForm2 {
442: my ($request, $user, $directory) = @_;
443:
444: $request->print('<h3><a=href="/priv/'.$user.$directory.'/">Done </a> </h3>');
445: }
446:
447: =pod
448:
449: =item Rename1($request, $filename, $user, $domain, $dir)
450:
451: Perform phase 1 processing of the file rename operation.
452:
453: Parameters:
454:
455: =over 4
456:
457: =item $request - Apache Request Object [in] The request object for the
458: current request.
459:
460: =item $filename - The filename relative to construction space.
461:
462: =item $user - Name of the user making the request.
463:
464: =item $domain - User login domain.
465:
466: =item $dir - Directory specification of the path to the file.
467:
468: =back
469:
470: Side effects:
471:
472: =over 4
473:
474: =item A new form is displayed prompting for confirmation. The newfilename
475: hidden field of this form is loaded with
476: new filename relative to the current directory ($dir).
477:
478: =back
479:
480: =cut
481:
482: sub Rename1 {
483: my ($request, $filename, $user, $domain, $dir) = @_;
484: &Debug($request, "Username - ".$user." filename: ".$filename."\n");
485: my $conspace = $filename;
486:
487: my $cancelurl = "/priv/".$filename;
488: $cancelurl =~ s/\/home\///;
489: $cancelurl =~ s/\/public_html//;
490:
491: if(-e $conspace) {
492: if($ENV{'form.newfilename'}) {
493: my $newfilename = $ENV{'form.newfilename'};
494: $request->print(&checksuffix($filename, $newfilename));
495: $request->print(&exists($user, $domain, $dir, $newfilename));
496: my $dest=&SimplifyDir($dir,$newfilename);
497: $request->print('<input type=hidden name=newfilename value="'.
498: $newfilename.
499: '"><p>Rename <tt>'.$filename.'</tt><br /> to <tt>'.
500: $dest.'</tt>?</p>');
501: &CloseForm1($request, $cancelurl);
502: } else {
503: $request->print('<p>No new filename specified</p></form>');
504: return;
505: }
506: } else {
507: $request->print('<p> No such File </p> </form>');
508: return;
509: }
510:
511: }
512: =pod
513:
514: =item Delete1
515:
516: Performs phase 1 processing of the delete operation. In phase one
517: we just check to be sure the file exists.
518:
519: Parameters:
520:
521: =over 4
522:
523: =item $request - Apache Request Object [in] request object for the current
524: request.
525:
526: =item $user - string [in] Name of session user.
527:
528:
529: =item $filename - string [in] Name fo the file to be deleted:
530: Filename is the full filesystem path to the file.
531:
532: =back
533:
534: =cut
535:
536: sub Delete1 {
537: my ($request, $user, $filename) = @_;
538:
539: my $cancelurl = '/priv/'.$filename;
540: $cancelurl =~ s/\/home\///;
541: $cancelurl =~ s/\/public_html//;
542:
543:
544: if( -e $filename) {
545: $request->print('<input type=hidden name=newfilename value="'.
546: $filename.'">');
547: $request->print('<p> Delete <tt>'.$filename.'</tt>?</p>');
548: &CloseForm1($request, $cancelurl);
549: } else {
550: $request->print('<p> No Such file: <tt>'.$filename.'</tt></p></form>');
551: }
552: }
553:
554: =pod
555:
556: =item Copy1($request, $user, $domain, $filename, $newfilename)
557:
558: Performs phase 1 processing of the construction space copy command.
559: Ensure that the source file exists. Ensure that a destination exists,
560: also warn if the destination already exists.
561:
562: Parameters:
563:
564: =over 4
565:
566: =item $request - Apache Request Object [in] request object for the current
567: request.
568:
569: =item $user - string [in] Name of the user initiating the request.
570:
571: =item $domain - string [in] Domain the initiating user is logged in as
572:
573: =item $dir - string [in] Directory path.
574:
575: =item $filename - string [in] Source filename.
576:
577: =item $newfilename-string [in] Destination filename.
578:
579: =back
580:
581: =cut
582:
583: sub Copy1 {
584: my ($request, $user, $domain, $dir, $filename, $newfilename) = @_;
585:
586: my $cancelurl = "/priv/".$filename;
587: $cancelurl =~ s/\/home\///;
588: $cancelurl =~ s/\/public_html//;
589:
590:
591: if(-e $filename) {
592: $request->print(&checksuffix($filename,$newfilename));
593: $request->print(&exists($user, $domain, $dir, $newfilename));
594: my $dest=&SimplifyDir($dir,$newfilename);
595: $request->print('<input type = hidden name = newfilename value = "'.
596: $dir.'/'.$newfilename.
597: '"><p>Copy <tt>'.$filename.'</tt><br /> to '.
598: '<tt>'.$dest.'</tt>?</p>');
599: &CloseForm1($request, $cancelurl);
600: } else {
601: $request->print('<p>No such file <tt>'.$filename.'</p></form>');
602: }
603: }
604:
605: =pod
606:
607: =item SimplifyDir
608:
609: Removes all extra / and all .. references
610:
611: Parameters:
612:
613: =over 4
614:
615: =item $dir - string [in] a directory name
616:
617: =item $file - string [in] a file reference relative to $dir
618:
619: =back
620:
621: Results: the concatenated path.
622:
623: =cut
624:
625: sub SimplifyDir {
626: my ($dir,$file) = @_;
627: my $location = $dir. '/'.$file;
628: $location=~s://+:/:g; # remove duplicate /
629: while ($location=~m:/\.\./:) {$location=~s:/[^/]+/\.\./:/:g;}#remove dir/..
630: return $location;
631: }
632:
633: =pod
634:
635: =item NewDir1
636:
637: Does all phase 1 processing of directory creation:
638: Ensures that the user provides a new directory name,
639: and that the directory does not already exist.
640:
641: Parameters:
642:
643: =over 4
644:
645: =item $request - Apache Request Object [in] - Server request object for the
646: current url.
647:
648: =item $username - Name of the user that is requesting the directory creation.
649:
650: =item $path - current directory relative to construction space.
651:
652: =item $newdir - Name of the directory to be created; path relative to the
653: top level of construction space.
654: =back
655:
656: Side Effects:
657:
658: =over 4
659:
660: =item A new form is displayed. Clicking on the confirmation button
661: causes the newdir operation to transition into phase 2. The hidden field
662: "newfilename" is set with the construction space path to the new directory.
663:
664:
665: =back
666:
667: =cut
668:
669:
670: sub NewDir1
671: {
672: my ($request, $username, $path, $newdir) = @_;
673:
674: my $fullpath = '/home/'.$username.'/public_html/'.
675: $path.'/'.$newdir;
676:
677: my $cancelurl = '/priv/'.$username.'/'.$path;
678:
679: &Debug($request, "Full path is : ".$fullpath);
680:
681: if(-e $fullpath) {
682: $request->print('<p>Directory exists.</p></form>');
683: }
684: else {
685: $request->print('<input type=hidden name=newfilename value="'.
686: $newdir.'"><p>Make new directory <tt>'.
687: $path."/".$newdir.'</tt>?</p>');
688: &CloseForm1($request, $cancelurl);
689:
690: }
691: }
692:
693: =pod
694:
695: =item phaseone($r, $fn, $uname, $udom)
696:
697: Peforms phase one processing of the request. In phase one, error messages
698: are returned if the request cannot be performed (e.g. attempts to manipulate
699: files that are nonexistent). If the operation can be performed, what is
700: about to be done will be presented to the user for confirmation. If the
701: user confirms the request, then phase two is executed, the action
702: performed and reported to the user.
703:
704: Parameters:
705:
706: =over 4
707:
708: =item $r - request object [in] - The Apache request being executed.
709:
710: =item $fn = string [in] - The filename being manipulated by the
711: request.
712:
713: =item $uname - string [in] Name of user logged in and doing this action.
714:
715: =item $udom - string [in] Domain name under which the user logged in.
716:
717: =back
718:
719: =cut
720:
721: sub phaseone {
722: my ($r,$fn,$uname,$udom)=@_;
723:
724: $fn=~m:(.*)/([^/]+)\.(\w+)$:;
725: my $dir=$1;
726: my $main=$2;
727: my $suffix=$3;
728:
729: # my $conspace=ConstructionPathFromRelative($uname, $fn);
730:
731:
732: $r->print('<form action=/adm/cfile method=post>'.
733: '<input type=hidden name=filename value="/~'.$uname.$fn.'">'.
734: '<input type=hidden name=phase value=two>'.
735: '<input type=hidden name=action value='.$ENV{'form.action'}.'>');
736:
737: if ($ENV{'form.action'} eq 'rename') {
738:
739: &Rename1($r, $fn, $uname, $udom, $dir);
740:
741: } elsif ($ENV{'form.action'} eq 'delete') {
742:
743: &Delete1($r, $uname, $fn);
744:
745: } elsif ($ENV{'form.action'} eq 'copy') {
746: if($ENV{'form.newfilename'}) {
747: my $newfilename = $ENV{'form.newfilename'};
748: &Copy1($r, $uname, $udom, $dir, $fn, $newfilename);
749: }else {
750: $r->print('<p>No new filename specified.</p></form>');
751: }
752: } elsif ($ENV{'form.action'} eq 'newdir') {
753: &NewDir1($r, $uname, $dir, $ENV{'form.newfilename'});
754: }
755:
756: }
757:
758: =pod
759:
760: =item Rename2($request, $user, $directory, $oldfile, $newfile)
761:
762: Performs phase 2 processing of a rename reequest. This is where the
763: actual rename is performed.
764:
765: Parameters
766:
767: =over 4
768:
769: =item $request - Apache request object [in] The request being processed.
770:
771: =item $user - string [in] The name of the user initiating the request.
772:
773: =item $directory - string [in] The name of the directory relative to the
774: construction space top level of the renamed file.
775:
776: =item $oldfile - Name of the file.
777:
778: =item $newfile - Name of the new file.
779:
780: =back
781:
782: Returns:
783:
784: =over 4
785:
786: =item 1 Success.
787:
788: =item 0 Failure.
789:
790: =cut
791:
792: sub Rename2 {
793:
794: my ($request, $user, $directory, $oldfile, $newfile) = @_;
795:
796: &Debug($request, "Rename2 directory: ".$directory." old file: ".$oldfile.
797: " new file ".$newfile."\n");
798: &Debug($request, "Target is: ".$directory.'/'.
799: $newfile);
800:
801: if(-e $oldfile) {
802: unless(rename($oldfile,
803: $directory.'/'.$newfile)) {
804: $request->print('<font color=red>Error: '.$!.'</font>');
805: return 0;
806: } else {}
807: } else {
808: $request->print("<p> No such file: /home".$user.'/public_html'.
809: $oldfile.' </p></form>');
810: return 0;
811: }
812: return 1;
813: }
814: =pod
815:
816: =item Delete2($request, $user, $filename)
817:
818: Performs phase two of a delete. The user has confirmed that they want
819: to delete the selected file. The file is deleted and the results of the
820: delete attempt are indicated.
821:
822: Parameters:
823:
824: =over 4
825:
826: =item $request - Apache Request object [in] the request object for the current
827: delete operation.
828:
829: =item $user - string [in] The name of the user initiating the delete
830: request.
831:
832: =item $filename - string [in] The name of the file, relative to construction
833: space, to delete.
834:
835: =back
836:
837: Returns:
838: 1 - success.
839: 0 - Failure.
840:
841: =cut
842:
843: sub Delete2 {
844: my ($request, $user, $filename) = @_;
845:
846: if(-e $filename) {
847: unless(unlink($filename)) {
848: $request->print('<font color=red>Error: '.$!.'</font>');
849: return 0;
850: }
851: } else {
852: $request->print('<p> No such file. </form');
853: return 0;
854: }
855: return 1;
856: }
857:
858: =pod
859:
860: =item Copy2($request, $username, $dir, $oldfile, $newfile)
861:
862: Performs phase 2 of a copy. The file is copied and the status
863: of that copy is reported back to the user.
864:
865: =over 4
866:
867: =item $request - Apache request object [in]; the apache request currently
868: being executed.
869:
870: =item $username - string [in] Name of the user who is requesting the copy.
871:
872: =item $dir - string [in] Directory path relative to the construction space
873: of the destination file.
874:
875: =item $oldfile - string [in] Name of the source file.
876:
877: =item $newfile - string [in] Name of the destination file.
878:
879:
880: =back
881:
882: Returns 0 failure, and 0 successs.
883:
884: =cut
885:
886: sub Copy2 {
887: my ($request, $username, $dir, $oldfile, $newfile) = @_;
888: &Debug($request ,"Will try to copy $oldfile to $newfile");
889: if(-e $oldfile) {
890: unless (copy($oldfile, $newfile)) {
891: $request->print('<font color=red> copy Error: '.$!.'</font>');
892: return 0;
893: } else {
894: unless (chmod(0660, $newfile)) {
895: $request->print('<font color=red> chmod error: '.$!.'</font>');
896: return 0;
897: }
898: return 1;
899: }
900: } else {
901: $request->print('<p> No such file </p>');
902: return 0;
903: }
904: return 1;
905: }
906: =pod
907:
908: =item NewDir2($request, $user, $newdirectory)
909:
910: Performs phase 2 processing of directory creation. This involves creating the directory and
911: reporting the results of that creation to the user.
912:
913: Parameters:
914: =over 4
915:
916: =item $request - Apache request object [in]. Object representing the current HTTP request.
917:
918: =item $user - string [in] The name of the user that is initiating the request.
919:
920: =item $newdirectory - string [in] The full path of the directory being created.
921:
922: =back
923:
924: Returns 0 - failure 1 - success.
925:
926: =cut
927:
928: sub NewDir2 {
929: my ($request, $user, $newdirectory) = @_;
930:
931: unless(mkdir($newdirectory, 02770)) {
932: $request->print('<font color=red>Error: '.$!.'</font>');
933: return 0;
934: }
935: unless(chmod(02770, ($newdirectory))) {
936: $request->print('<font color=red> Error: '.$!.'</font>');
937: return 0;
938: }
939: return 1;
940: }
941:
942: =pod
943:
944: =item phasetwo($r, $fn, $uname, $udom)
945:
946: Controls the phase 2 processing of file management
947: requests for construction space. In phase one, the user
948: was asked to confirm the operation. In phase 2, the operation
949: is performed and the result is shown.
950:
951: The strategy is to break out the processing into specific action processors
952: named action2 where action is the requested action and the 2 denotes
953: phase 2 processing.
954:
955: Parameters:
956:
957: =over 4
958:
959: =item $r - Apache Request object [in] The request object for this httpd
960: transaction.
961:
962: =item $fn - string [in] A filename indicating the object that is being
963: manipulated.
964:
965: =item $uname - string [in] The name of the user initiating the file management
966: request.
967:
968: =item $udom - string [in] The login domain of the user initiating the
969: file management request.
970: =back
971:
972: =cut
973:
974: sub phasetwo {
975: my ($r,$fn,$uname,$udom)=@_;
976:
977: &Debug($r, "loncfile - Entering phase 2 for $fn");
978:
979: # Break down the file into it's component pieces.
980:
981: $fn=~/(.*)\/([^\/]+)\.(\w+)$/;
982: my $dir=$1; # Directory path
983: my $main=$2; # Filename.
984: my $suffix=$3; # Extension.
985:
986: my $dest; # On success this is where we'll go.
987:
988: &Debug($r,
989: "loncfile::phase2 dir = $dir main = $main suffix = $suffix");
990: &Debug($r,
991: " newfilename = ".$ENV{'form.newfilename'});
992:
993: my $conspace=$fn;
994:
995: &Debug($r,
996: "loncfile::phase2 Full construction space name: $conspace");
997:
998: &Debug($r,
999: "loncfie::phase2 action is $ENV{'form.action'}");
1000:
1001: # Select the appropriate processing sub.
1002:
1003: if ($ENV{'form.action'} eq 'rename') { # Rename.
1004: if($ENV{'form.newfilename'}) {
1005: if(!&Rename2($r, $uname, $dir, $fn, $ENV{'form.newfilename'})) {
1006: return;
1007: }
1008: # Prepend the directory to the new name to form the basis of the
1009: # url of the new resource.
1010: #
1011: $dest = $dir."/".$ENV{'form.newfilename'};
1012: }
1013: } elsif ($ENV{'form.action'} eq 'delete') {
1014: if(!&Delete2($r, $uname, $ENV{'form.newfilename'})) {
1015: return ;
1016: }
1017: # Once a resource is deleted, we just list the directory that
1018: # previously held it.
1019: #
1020: $dest = $dir."/."; # Parent dir.
1021: } elsif ($ENV{'form.action'} eq 'copy') {
1022: if($ENV{'form.newfilename'}) {
1023: if(!&Copy2($r, $uname, $dir, $fn, $ENV{'form.newfilename'})) {
1024: return
1025: }
1026: $dest = $ENV{'form.newfilename'};
1027:
1028: } else {
1029: $r->print('<p>No New filename specified</form>');
1030: return;
1031: }
1032:
1033: } elsif ($ENV{'form.action'} eq 'newdir') {
1034: #
1035: # Since the newfilename form field is construction space
1036: # relative, ew need to prepend the current path; now in $fn.
1037: #
1038: my $newdir= $fn.$ENV{'form.newfilename'};
1039: if(!&NewDir2($r, $uname, $newdir)) {
1040: return;
1041: }
1042: $dest = $newdir."/"
1043: }
1044: #
1045: # Substitute for priv for the first home in $dir to get our
1046: # construction space path.
1047: #
1048: &Debug($r, "Final url is: $dest");
1049: $dest =~ s|/home/|/priv/|;
1050: $dest =~ s|/public_html||;
1051:
1052: my $base = &File::Basename::basename($dest);
1053: my $dpath= &File::Basename::dirname($dest);
1054: if ($base eq '.') { $base=''; }
1055: $dest = &HTML::Entities::encode($dpath.'/'.$base);
1056:
1057:
1058: &Debug($r, "Final url after rewrite: $dest");
1059:
1060: $r->print('<h3><a href="'.$dest.'">Done</a></h3>');
1061: }
1062:
1063: sub handler {
1064:
1065: $r=shift;
1066:
1067:
1068: &Debug($r, "loncfile.pm - handler entered");
1069: &Debug($r, " filename: ".$ENV{'form.filename'});
1070: &Debug($r, " newfilename: ".$ENV{'form.newfilename'});
1071:
1072: my $fn;
1073:
1074: if ($ENV{'form.filename'}) {
1075: $fn=$ENV{'form.filename'};
1076: &Debug($r, "loncfile::handler - raw url: $fn");
1077: # $fn=~s/^http\:\/\/[^\/]+\/\~(\w+)/\/home\/$1\/public_html/;
1078: # $fn=~s/^http\:\/\/[^\/]+//;
1079: $fn=URLToPath($fn);
1080: &Debug($r, "loncfile::handler - doctored url: $fn");
1081:
1082: } else {
1083: &Debug($r, "loncfile::handler - no form.filename");
1084: $r->log_reason($ENV{'user.name'}.' at '.$ENV{'user.domain'}.
1085: ' unspecified filename for cfile', $r->filename);
1086: return HTTP_NOT_FOUND;
1087: }
1088:
1089: unless ($fn) {
1090: &Debug($r, "loncfile::handler - doctored url is empty");
1091: $r->log_reason($ENV{'user.name'}.' at '.$ENV{'user.domain'}.
1092: ' trying to cfile non-existing file', $r->filename);
1093: return HTTP_NOT_FOUND;
1094: }
1095:
1096: # ----------------------------------------------------------- Start page output
1097: my $uname;
1098: my $udom;
1099:
1100: ($uname,$udom)=
1101: &Apache::loncacc::constructaccess($fn,$r->dir_config('lonDefDomain'));
1102: &Debug($r,
1103: "loncfile::handler constructaccess uname = $uname domain = $udom");
1104: unless (($uname) && ($udom)) {
1105: $r->log_reason($uname.' at '.$udom.
1106: ' trying to manipulate file '.$ENV{'form.filename'}.
1107: ' ('.$fn.') - not authorized',
1108: $r->filename);
1109: return HTTP_NOT_ACCEPTABLE;
1110: }
1111:
1112: $fn=~s/\/\~(\w+)//;
1113: &Debug($r, "loncfile::handler ~ removed filename: $fn");
1114:
1115: $r->content_type('text/html');
1116: $r->send_http_header;
1117:
1118: $r->print('<html><head><title>LON-CAPA Construction Space</title></head>');
1119:
1120: $r->print(
1121: '<body bgcolor="#FFFFFF"><img align=right src=/adm/lonIcons/lonlogos.gif>');
1122:
1123:
1124: $r->print('<h1>Construction Space <tt>'.$fn.'</tt></h1>');
1125:
1126: if (($uname ne $ENV{'user.name'}) || ($udom ne $ENV{'user.domain'})) {
1127: $r->print('<h3><font color=red>Co-Author: '.$uname.' at '.$udom.
1128: '</font></h3>');
1129: }
1130:
1131:
1132: &Debug($r, "loncfile::handler Form action is $ENV{'form.action'} ");
1133: if ($ENV{'form.action'} eq 'delete') {
1134:
1135: $r->print('<h3>Delete</h3>');
1136: } elsif ($ENV{'form.action'} eq 'rename') {
1137: $r->print('<h3>Rename</h3>');
1138: } elsif ($ENV{'form.action'} eq 'newdir') {
1139: $r->print('<h3>New Directory</h3>');
1140: } elsif ($ENV{'form.action'} eq 'copy') {
1141: $r->print('<h3>Copy</h3>');
1142: } else {
1143: $r->print('<p>Unknown Action</body></html>');
1144: return OK;
1145: }
1146: if ($ENV{'form.phase'} eq 'two') {
1147: &Debug($r, "loncfile::handler entering phase2");
1148: &phasetwo($r,$fn,$uname,$udom);
1149: } else {
1150: &Debug($r, "loncfile::handler entering phase1");
1151: &phaseone($r,$fn,$uname,$udom);
1152: }
1153:
1154: $r->print('</body></html>');
1155: return OK;
1156: }
1157:
1158: 1;
1159: __END__
1160:
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