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 1.39 2003/08/04 20:34:19 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:
76: my $DEBUG=0;
77: my $r; # Needs to be global for some stuff RF.
78:
79: =pod
80:
81: =item Debug($request, $message)
82:
83: If debugging is enabled puts out a debugging message determined by the
84: caller. The debug message goes to the Apache error log file. Debugging
85: is enabled by setting the module global DEBUG variable to nonzero (TRUE).
86:
87: Parameters:
88:
89: =over 4
90:
91: =item $request - The current request operation.
92:
93: =item $message - The message to put in the log file.
94:
95: =back
96:
97: Returns:
98: nothing.
99:
100: =cut
101:
102: sub Debug {
103:
104: # Marshall the parameters.
105:
106: my $r = shift;
107: my $log = $r->log;
108: my $message = shift;
109:
110: # Put out the indicated message butonly if DEBUG is true.
111:
112: if ($DEBUG) {
113: $log->debug($message);
114: }
115: }
116:
117: =pod
118:
119: =item URLToPath($url)
120:
121: Convert a URL to a file system path.
122:
123: In order to manipulate the construction space objects, it is necessary
124: to access url identified objects a filespace objects. This function
125: translates a construction space URL to a file system path.
126: Parameters:
127:
128: =over 4
129:
130: =item Url - string [in] The url to convert.
131:
132: =back
133:
134: Returns:
135:
136: =over 4
137:
138: =item The corresponding file system path.
139:
140: =back
141:
142: Global References
143:
144: =over 4
145:
146: =item $r - Request object [in] Referenced in the &Debug calls.
147:
148: =back
149:
150: =cut
151:
152: sub URLToPath {
153: my $Url = shift;
154: &Debug($r, "UrlToPath got: $Url");
155: $Url=~ s/\/+/\//g;
156: $Url=~ s/^http\:\/\/[^\/]+//;
157: $Url=~ s/^\///;
158: $Url=~ s/(\~|priv\/)(\w+)\//\/home\/$2\/public_html\//;
159: &Debug($r, "Returning $Url \n");
160: return $Url;
161: }
162:
163: sub url {
164: my $fn=shift;
165: $fn=~s/^\/home\/(\w+)\/public\_html/\/priv\/$1/;
166: return $fn;
167: }
168:
169: sub display {
170: my $fn=shift;
171: $fn=~s/^\/home\/(\w+)\/public\_html//;
172: return '<tt>'.$fn.'</tt>';
173: }
174:
175: =pod
176:
177: =item exists($user, $domain, $file)
178:
179: Determine if a resource file name has been published or exists
180: in the construction space.
181:
182: Parameters:
183:
184: =over 4
185:
186: =item $user - string [in] - Name of the user for which to check.
187:
188: =item $domain - string [in] - Name of the domain in which the resource
189: might have been published.
190:
191: =item $file - string [in] - Name of the file.
192:
193: =back
194:
195: Returns:
196:
197: =over 4
198:
199: =item string - Either where the resource exists as an html string that can
200: be embedded in a dialog or an empty string if the resource
201: does not exist.
202:
203: =back
204:
205: =cut
206:
207: sub exists {
208: my ($user, $domain, $construct) = @_;
209: my $published=$construct;
210: $published=~
211: s/^\/home\/$user\/public\_html\//\/home\/httpd\/html\/res\/$domain\/$user\//;
212: my $result='';
213: if ( -d $construct ) {
214: return 'Error: destination for operation is an existing directory.';
215: }
216: if ( -e $published) {
217: $result.='<p><font color="red">Warning: target file exists, and has been published!</font></p>';
218: } elsif ( -e $construct) {
219: $result.='<p><font color="red">Warning: target file exists!</font></p>';
220: }
221: return $result;
222:
223: }
224:
225: =pod
226:
227: =item checksuffix($old, $new)
228:
229: Determine if a resource filename suffix (the stuff after the .) would change
230: as a result of this operation.
231:
232: Parameters:
233:
234: =over 4
235:
236: =item $old = string [in] Previous filename.
237:
238: =item $new = string [in] Resultant filename.
239:
240: =back
241:
242: Returns:
243:
244: =over 4
245:
246: =item Empty string if everything worked.
247:
248: =item String containing an error message if there was a problem.
249:
250: =back
251:
252: =cut
253:
254: sub checksuffix {
255: my ($old,$new) = @_;
256: my $result;
257: my $oldsuffix;
258: my $newsuffix;
259: if ($new=~m:(.*/*)([^/]+)\.(\w+)$:) { $newsuffix=$3; }
260: if ($old=~m:(.*)/+([^/]+)\.(\w+)$:) { $oldsuffix=$3; }
261: if ($oldsuffix ne $newsuffix) {
262: $result.=
263: '<p><font color="red">Warning: change of MIME type!</font></p>';
264: }
265: return $result;
266: }
267:
268: sub cleanDest {
269: my ($request,$dest)=@_;
270: #remove bad characters
271: if ($dest=~/[\#\?&]/) {
272: $request->print("<p><font color=\"red\">Invalid characters in requested name have been removed.</font></p>");
273: $dest=~s/[\#\?&]//g;
274: }
275: return $dest;
276: }
277:
278: sub relativeDest {
279: my ($fn,$newfilename,$uname)=@_;
280: if ($newfilename=~/^\//) {
281: # absolute, simply add path
282: $newfilename='/home/'.$uname.'/public_html/';
283: } else {
284: my $dir=$fn;
285: $dir=~s/\/[^\/]+$//;
286: $newfilename=$dir.'/'.$newfilename;
287: }
288: $newfilename=~s://+:/:g; # remove duplicate /
289: while ($newfilename=~m:/\.\./:) {
290: $newfilename=~ s:/[^/]+/\.\./:/:g; #remove dir/..
291: }
292: return $newfilename;
293: }
294:
295: =pod
296:
297: =item CloseForm1($request, $user, $file)
298:
299: Close of a form on the successful completion of phase 1 processing
300:
301: Parameters:
302:
303: =over 4
304:
305: =item $request - Apache Request Object [in] - Apache server request object.
306:
307: =item $cancelurl - the url to go to on cancel.
308:
309: =back
310:
311: =cut
312:
313: sub CloseForm1 {
314: my ($request, $fn) = @_;
315: $request->print('<p><input type="submit" value="Continue" /></p></form>');
316: $request->print('<form action="'.&url($fn).
317: '" method="POST"><p><input type="submit" value="Cancel" /></p></form>');
318: }
319:
320:
321: =pod
322:
323: =item CloseForm2($request, $user, $directory)
324:
325: Successfully close off the phase 2 form.
326:
327: Parameters:
328:
329: =over 4
330:
331: =item $request - Apache Request object [in] - The request that is being
332: executed.
333:
334: =item $user - string [in] - Name of the user that is initiating the
335: request.
336:
337: =item $directory - string [in] - Directory in which the operation is
338: being done relative to the top level construction space
339: directory.
340:
341: =back
342:
343: =cut
344:
345: sub CloseForm2 {
346: my ($request, $user, $fn) = @_;
347: $request->print('<h3><a href="'.&url($fn).'/">Done</a></h3>');
348: }
349:
350: =pod
351:
352: =item Rename1($request, $filename, $user, $domain, $dir)
353:
354: Perform phase 1 processing of the file rename operation.
355:
356: Parameters:
357:
358: =over 4
359:
360: =item $request - Apache Request Object [in] The request object for the
361: current request.
362:
363: =item $filename - The filename relative to construction space.
364:
365: =item $user - Name of the user making the request.
366:
367: =item $domain - User login domain.
368:
369: =item $dir - Directory specification of the path to the file.
370:
371: =back
372:
373: Side effects:
374:
375: =over 4
376:
377: =item A new form is displayed prompting for confirmation. The newfilename
378: hidden field of this form is loaded with
379: new filename relative to the current directory ($dir).
380:
381: =back
382:
383: =cut
384:
385: sub Rename1 {
386: my ($request, $user, $domain, $fn, $newfilename) = @_;
387:
388: if(-e $fn) {
389: if($newfilename) {
390: if ($newfilename =~ m|/[^\.]+$|) {
391: #no extension add on original extension
392: if ($fn =~ m|/[^\.]*\.([^\.]+)$|) {
393: $newfilename.='.'.$1;
394: }
395: }
396: $request->print(&checksuffix($fn, $newfilename));
397: #renaming a dir, delete the trailing /
398: #remove second to last element for current dir
399: if (-d $fn) {
400: $newfilename=~s/\/[^\/]+\/([^\/]+)$/\/$1/;
401: }
402: my $return=&exists($user, $domain, $newfilename);
403: $request->print($return);
404: if ($return =~/^Error:/) {
405: $request->print('<br /><a href="'.&url($fn).'">Cancel</a>');
406: return;
407: }
408: $request->print('<input type="hidden" name="newfilename" value="'.
409: $newfilename.
410: '" /><p>Rename '.&display($fn).
411: '</tt><br />to '.&display($newfilename).'?</p>');
412: &CloseForm1($request, $fn);
413: } else {
414: $request->print('<p>No new filename specified.</p></form>');
415: return;
416: }
417: } else {
418: $request->print('<p> No such file: '.&display($fn).'</p></form>');
419: return;
420: }
421:
422: }
423: =pod
424:
425: =item Delete1
426:
427: Performs phase 1 processing of the delete operation. In phase one
428: we just check to be sure the file exists.
429:
430: Parameters:
431:
432: =over 4
433:
434: =item $request - Apache Request Object [in] request object for the current
435: request.
436:
437: =item $user - string [in] Name of the user initiating the request.
438:
439: =item $domain - string [in] Domain the initiating user is logged in as
440:
441: =item $filename - string [in] Source filename.
442:
443: =back
444:
445: =cut
446:
447: sub Delete1 {
448: my ($request, $user, $domain, $fn) = @_;
449:
450: if( -e $fn) {
451: $request->print('<input type="hidden" name="newfilename" value="'.
452: $fn.'"/>');
453: $request->print('<p>Delete '.&display($fn).'?</p>');
454: &CloseForm1($request, $fn);
455: } else {
456: $request->print('<p>No such file: '.&display($fn).'</p></form>');
457: }
458: }
459:
460: =pod
461:
462: =item Copy1($request, $user, $domain, $filename, $newfilename)
463:
464: Performs phase 1 processing of the construction space copy command.
465: Ensure that the source file exists. Ensure that a destination exists,
466: also warn if the destination already exists.
467:
468: Parameters:
469:
470: =over 4
471:
472: =item $request - Apache Request Object [in] request object for the current
473: request.
474:
475: =item $user - string [in] Name of the user initiating the request.
476:
477: =item $domain - string [in] Domain the initiating user is logged in as
478:
479: =item $fn - string [in] Source filename.
480:
481: =item $newfilename-string [in] Destination filename.
482:
483: =back
484:
485: =cut
486:
487: sub Copy1 {
488: my ($request, $user, $domain, $fn, $newfilename) = @_;
489:
490: if(-e $fn) {
491: $request->print(&checksuffix($fn,$newfilename));
492: my $return=&exists($user, $domain, $newfilename);
493: $request->print($return);
494: if ($return =~/^Error:/) {
495: $request->print('<br /><a href="'.&url($fn).'">Cancel</a>');
496: return;
497: }
498: $request->print('<input type = "hidden" name = "newfilename" value = "'.
499: $newfilename.
500: '" /><p>Copy '.&display($fn).'<br />to '.
501: &display($newfilename).'?</p>');
502: &CloseForm1($request, $fn);
503: } else {
504: $request->print('<p>No such file: '.&display($fn).'</p></form>');
505: }
506: }
507:
508: =pod
509:
510: =item NewDir1
511:
512: Does all phase 1 processing of directory creation:
513: Ensures that the user provides a new directory name,
514: and that the directory does not already exist.
515:
516: Parameters:
517:
518: =over 4
519:
520: =item $request - Apache Request Object [in] - Server request object for the
521: current url.
522:
523: =item $username - Name of the user that is requesting the directory creation.
524:
525: =item $domain - Domain user is in
526:
527: =item $fn - source file.
528:
529: =item $newdir - Name of the directory to be created; path relative to the
530: top level of construction space.
531: =back
532:
533: Side Effects:
534:
535: =over 4
536:
537: =item A new form is displayed. Clicking on the confirmation button
538: causes the newdir operation to transition into phase 2. The hidden field
539: "newfilename" is set with the construction space path to the new directory.
540:
541:
542: =back
543:
544: =cut
545:
546:
547: sub NewDir1
548: {
549: my ($request, $username, $domain, $fn, $newfilename) = @_;
550:
551: my $result=&exists($username,$domain,$newfilename);
552: if ($result) {
553: $request->print('<font color="red">'.$result.'</font></form>');
554: } else {
555: $request->print('<input type="hidden" name="newfilename" value="'.
556: $newfilename.'" /><p>Make new directory '.
557: &display($newfilename).'?</p>');
558: &CloseForm1($request, $fn);
559: }
560: }
561:
562: =pod
563:
564: =item NewFile1
565:
566: Does all phase 1 processing of file creation:
567: Ensures that the user provides a new filename, adds proper extension
568: if needed and that the file does not already exist, if it is a html,
569: problem, page, or sequence, it then creates a form link to hand the
570: actual creation off to the proper handler.
571:
572: Parameters:
573:
574: =over 4
575:
576: =item $request - Apache Request Object [in] - Server request object for the
577: current url.
578:
579: =item $username - Name of the user that is requesting the directory creation.
580:
581: =item $domain - Name of the domain of the user
582:
583: =item $fn - Source file name
584:
585: =item $newfilename
586: - Name of the file to be created; no path information
587: =back
588:
589: Side Effects:
590:
591: =over 4
592:
593: =item 2 new forms are displayed. Clicking on the confirmation button
594: causes the browser to attempt to load the specfied URL, allowing the
595: proper handler to take care of file creation. There is also a Cancel
596: button which returns you to the driectory listing you came from
597:
598: =back
599:
600: =cut
601:
602:
603: sub NewFile1 {
604: my ($request, $user, $domain, $fn, $newfilename) = @_;
605:
606: if ($ENV{'form.action'} =~ /new(.+)file/) {
607: my $extension=$1;
608: if ($newfilename !~ /\Q.$extension\E$/) {
609: if ($newfilename =~ m|^[^\.]*\.([^\.]+)$|) {
610: #already has an extension strip it and add in expected one
611: $newfilename =~ s|.([^\.]+)$||;
612: }
613: $newfilename.=".$extension";
614: }
615: }
616: my $result=&exists($user,$domain,$newfilename);
617: if($result) {
618: $request->print('<font color="red">'.$result.'</font></form>');
619: } else {
620: $request->print('<p>Make new file '.&display($newfilename).'?</p>');
621: $request->print('</form>');
622: $request->print('<form action="'.&url($newfilename).
623: '" method="POST"><p><input type="submit" value="Continue" /></p></form>');
624: $request->print('<form action="'.&url($fn).
625: '" method="POST"><p><input type="submit" value="Cancel" /></p></form>');
626: }
627: }
628:
629: =pod
630:
631: =item phaseone($r, $fn, $uname, $udom)
632:
633: Peforms phase one processing of the request. In phase one, error messages
634: are returned if the request cannot be performed (e.g. attempts to manipulate
635: files that are nonexistent). If the operation can be performed, what is
636: about to be done will be presented to the user for confirmation. If the
637: user confirms the request, then phase two is executed, the action
638: performed and reported to the user.
639:
640: Parameters:
641:
642: =over 4
643:
644: =item $r - request object [in] - The Apache request being executed.
645:
646: =item $fn = string [in] - The filename being manipulated by the
647: request.
648:
649: =item $uname - string [in] Name of user logged in and doing this action.
650:
651: =item $udom - string [in] Domain name under which the user logged in.
652:
653: =back
654:
655: =cut
656:
657: sub phaseone {
658: my ($r,$fn,$uname,$udom)=@_;
659:
660: my $newfilename=&cleanDest($r,$ENV{'form.newfilename'});
661: $newfilename=&relativeDest($fn,$newfilename,$uname);
662:
663: $r->print('<form action="/adm/cfile" method="post">'.
664: '<input type="hidden" name="qualifiedfilename" value="'.$fn.'" />'.
665: '<input type="hidden" name="phase" value="two" />'.
666: '<input type="hidden" name="action" value="'.$ENV{'form.action'}.'" />');
667:
668: if ($ENV{'form.action'} eq 'rename') {
669: &Rename1($r, $uname, $udom, $fn, $newfilename);
670: } elsif ($ENV{'form.action'} eq 'delete') {
671: &Delete1($r, $uname, $udom, $fn);
672: } elsif ($ENV{'form.action'} eq 'copy') {
673: if($newfilename) {
674: &Copy1($r, $uname, $udom, $fn, $newfilename);
675: } else {
676: $r->print('<p>No new filename specified.</p></form>');
677: }
678: } elsif ($ENV{'form.action'} eq 'newdir') {
679: &NewDir1($r, $uname, $udom, $fn, $newfilename);
680: } elsif ($ENV{'form.action'} eq 'newfile' ||
681: $ENV{'form.action'} eq 'newhtmlfile' ||
682: $ENV{'form.action'} eq 'newproblemfile' ||
683: $ENV{'form.action'} eq 'newpagefile' ||
684: $ENV{'form.action'} eq 'newsequencefile' ||
685: $ENV{'form.action'} eq 'newrightsfile' ||
686: $ENV{'form.action'} eq 'newstyfile' ||
687: $ENV{'form.action'} eq 'Select Action') {
688: if ($newfilename) {
689: &NewFile1($r, $uname, $udom, $fn, $newfilename);
690: } else {
691: $r->print('<p>No new filename specified.</p></form>');
692: }
693: }
694: }
695:
696: =pod
697:
698: =item Rename2($request, $user, $directory, $oldfile, $newfile)
699:
700: Performs phase 2 processing of a rename reequest. This is where the
701: actual rename is performed.
702:
703: Parameters
704:
705: =over 4
706:
707: =item $request - Apache request object [in] The request being processed.
708:
709: =item $user - string [in] The name of the user initiating the request.
710:
711: =item $directory - string [in] The name of the directory relative to the
712: construction space top level of the renamed file.
713:
714: =item $oldfile - Name of the file.
715:
716: =item $newfile - Name of the new file.
717:
718: =back
719:
720: Returns:
721:
722: =over 4
723:
724: =item 1 Success.
725:
726: =item 0 Failure.
727:
728: =cut
729:
730: sub Rename2 {
731:
732: my ($request, $user, $directory, $oldfile, $newfile) = @_;
733:
734: &Debug($request, "Rename2 directory: ".$directory." old file: ".$oldfile.
735: " new file ".$newfile."\n");
736: &Debug($request, "Target is: ".$directory.'/'.
737: $newfile);
738: if (-e $oldfile) {
739: unless (rename($oldfile,$newfile)) {
740: $request->print('<font color="red">Error: '.$!.'</font>');
741: return 0;
742: }
743: } else {
744: $request->print("<p> No such file: ".&display($oldfile).'</p></form>');
745: return 0;
746: }
747: return 1;
748: }
749: =pod
750:
751: =item Delete2($request, $user, $filename)
752:
753: Performs phase two of a delete. The user has confirmed that they want
754: to delete the selected file. The file is deleted and the results of the
755: delete attempt are indicated.
756:
757: Parameters:
758:
759: =over 4
760:
761: =item $request - Apache Request object [in] the request object for the current
762: delete operation.
763:
764: =item $user - string [in] The name of the user initiating the delete
765: request.
766:
767: =item $filename - string [in] The name of the file, relative to construction
768: space, to delete.
769:
770: =back
771:
772: Returns:
773: 1 - success.
774: 0 - Failure.
775:
776: =cut
777:
778: sub Delete2 {
779: my ($request, $user, $filename) = @_;
780:
781: if(-e $filename) {
782: unless(unlink($filename)) {
783: $request->print('<font color="red">Error: '.$!.'</font>');
784: return 0;
785: }
786: } else {
787: $request->print('<p> No such file. </p></form');
788: return 0;
789: }
790: return 1;
791: }
792:
793: =pod
794:
795: =item Copy2($request, $username, $dir, $oldfile, $newfile)
796:
797: Performs phase 2 of a copy. The file is copied and the status
798: of that copy is reported back to the user.
799:
800: =over 4
801:
802: =item $request - Apache request object [in]; the apache request currently
803: being executed.
804:
805: =item $username - string [in] Name of the user who is requesting the copy.
806:
807: =item $dir - string [in] Directory path relative to the construction space
808: of the destination file.
809:
810: =item $oldfile - string [in] Name of the source file.
811:
812: =item $newfile - string [in] Name of the destination file.
813:
814:
815: =back
816:
817: Returns 0 failure, and 0 successs.
818:
819: =cut
820:
821: sub Copy2 {
822: my ($request, $username, $dir, $oldfile, $newfile) = @_;
823: &Debug($request ,"Will try to copy $oldfile to $newfile");
824: if(-e $oldfile) {
825: unless (copy($oldfile, $newfile)) {
826: $request->print('<font color="red"> copy Error: '.$!.'</font>');
827: return 0;
828: } else {
829: unless (chmod(0660, $newfile)) {
830: $request->print('<font color="red"> chmod error: '.$!.'</font>');
831: return 0;
832: }
833: return 1;
834: }
835: } else {
836: $request->print('<p> No such file </p>');
837: return 0;
838: }
839: return 1;
840: }
841: =pod
842:
843: =item NewDir2($request, $user, $newdirectory)
844:
845: Performs phase 2 processing of directory creation. This involves creating the directory and
846: reporting the results of that creation to the user.
847:
848: Parameters:
849: =over 4
850:
851: =item $request - Apache request object [in]. Object representing the current HTTP request.
852:
853: =item $user - string [in] The name of the user that is initiating the request.
854:
855: =item $newdirectory - string [in] The full path of the directory being created.
856:
857: =back
858:
859: Returns 0 - failure 1 - success.
860:
861: =cut
862:
863: sub NewDir2 {
864: my ($request, $user, $newdirectory) = @_;
865:
866: unless(mkdir($newdirectory, 02770)) {
867: $request->print('<font color="red">Error: '.$!.'</font>');
868: return 0;
869: }
870: unless(chmod(02770, ($newdirectory))) {
871: $request->print('<font color="red"> Error: '.$!.'</font>');
872: return 0;
873: }
874: return 1;
875: }
876:
877: =pod
878:
879: =item phasetwo($r, $fn, $uname, $udom)
880:
881: Controls the phase 2 processing of file management
882: requests for construction space. In phase one, the user
883: was asked to confirm the operation. In phase 2, the operation
884: is performed and the result is shown.
885:
886: The strategy is to break out the processing into specific action processors
887: named action2 where action is the requested action and the 2 denotes
888: phase 2 processing.
889:
890: Parameters:
891:
892: =over 4
893:
894: =item $r - Apache Request object [in] The request object for this httpd
895: transaction.
896:
897: =item $fn - string [in] A filename indicating the object that is being
898: manipulated.
899:
900: =item $uname - string [in] The name of the user initiating the file management
901: request.
902:
903: =item $udom - string [in] The login domain of the user initiating the
904: file management request.
905: =back
906:
907: =cut
908:
909: sub phasetwo {
910: my ($r,$fn,$uname,$udom)=@_;
911:
912: &Debug($r, "loncfile - Entering phase 2 for $fn");
913:
914: # Break down the file into it's component pieces.
915:
916: my $dir; # Directory path
917: my $main; # Filename.
918: my $suffix; # Extension.
919:
920: if ($fn=~m:(.*)/([^/]+)\.(\w+)$:) {
921: $dir=$1; # Directory path
922: $main=$2; # Filename.
923: $suffix=$3; # Extension.
924: }
925:
926: my $dest; # On success this is where we'll go.
927:
928: &Debug($r,
929: "loncfile::phase2 dir = $dir main = $main suffix = $suffix");
930: &Debug($r,
931: " newfilename = ".$ENV{'form.newfilename'});
932:
933: my $conspace=$fn;
934:
935: &Debug($r,
936: "loncfile::phase2 Full construction space name: $conspace");
937:
938: &Debug($r,
939: "loncfie::phase2 action is $ENV{'form.action'}");
940:
941: # Select the appropriate processing sub.
942:
943: if ($ENV{'form.action'} eq 'rename') { # Rename.
944: if($ENV{'form.newfilename'}) {
945: if (!defined($dir)) {
946: $fn=~m:^(.*)/:;
947: $dir=$1;
948: }
949: if(!&Rename2($r, $uname, $dir, $fn, $ENV{'form.newfilename'})) {
950: return;
951: }
952: $dest = &url($ENV{'form.newfilename'});
953: }
954: } elsif ($ENV{'form.action'} eq 'delete') {
955: if(!&Delete2($r, $uname, $ENV{'form.newfilename'})) {
956: return ;
957: }
958: # Once a resource is deleted, we just list the directory that
959: # previously held it.
960: #
961: $dest = $dir."/."; # Parent dir.
962: } elsif ($ENV{'form.action'} eq 'copy') {
963: if($ENV{'form.newfilename'}) {
964: if(!&Copy2($r, $uname, $dir, $fn, $ENV{'form.newfilename'})) {
965: return
966: }
967: $dest = $ENV{'form.newfilename'};
968:
969: } else {
970: $r->print('<p>No New filename specified</p></form>');
971: return;
972: }
973:
974: } elsif ($ENV{'form.action'} eq 'newdir') {
975: my $newdir= $ENV{'form.newfilename'};
976: if(!&NewDir2($r, $uname, $newdir)) {
977: return;
978: }
979: $dest = $newdir."/"
980: }
981: $r->print('<h3><a href="'.&url($dest).'">Done</a></h3>');
982: }
983:
984: sub handler {
985:
986: $r=shift;
987:
988:
989: &Debug($r, "loncfile.pm - handler entered");
990: &Debug($r, " filename: ".$ENV{'form.filename'});
991: &Debug($r, " newfilename: ".$ENV{'form.newfilename'});
992: #
993: # Determine the root filename
994: # This could come in as "filename", which actually is a URL, or
995: # as "qualifiedfilename", which is indeed a real filename in filesystem
996: #
997: my $fn;
998:
999: if ($ENV{'form.filename'}) {
1000: $fn=&Apache::lonnet::unescape($ENV{'form.filename'});
1001: $fn=&URLToPath($fn);
1002: } elsif ($ENV{'form.qualifiedfilename'}) {
1003: $fn=$ENV{'form.qualifiedfilename'};
1004: } else {
1005: &Debug($r, "loncfile::handler - no form.filename");
1006: $r->log_reason($ENV{'user.name'}.' at '.$ENV{'user.domain'}.
1007: ' unspecified filename for cfile', $r->filename);
1008: return HTTP_NOT_FOUND;
1009: }
1010:
1011: unless ($fn) {
1012: &Debug($r, "loncfile::handler - doctored url is empty");
1013: $r->log_reason($ENV{'user.name'}.' at '.$ENV{'user.domain'}.
1014: ' trying to cfile non-existing file', $r->filename);
1015: return HTTP_NOT_FOUND;
1016: }
1017:
1018: # ----------------------------------------------------------- Start page output
1019: my $uname;
1020: my $udom;
1021:
1022: ($uname,$udom)=
1023: &Apache::loncacc::constructaccess($fn,$r->dir_config('lonDefDomain'));
1024: &Debug($r,
1025: "loncfile::handler constructaccess uname = $uname domain = $udom");
1026: unless (($uname) && ($udom)) {
1027: $r->log_reason($uname.' at '.$udom.
1028: ' trying to manipulate file '.$ENV{'form.filename'}.
1029: ' ('.$fn.') - not authorized',
1030: $r->filename);
1031: return HTTP_NOT_ACCEPTABLE;
1032: }
1033:
1034:
1035: $r->content_type('text/html');
1036: $r->send_http_header;
1037:
1038: $r->print('<html><head><title>LON-CAPA Construction Space</title></head>');
1039:
1040: $r->print(&Apache::loncommon::bodytag('Construction Space File Operation'));
1041:
1042:
1043: $r->print('<h3>Location: '.&display($fn).'</h3>');
1044:
1045: if (($uname ne $ENV{'user.name'}) || ($udom ne $ENV{'user.domain'})) {
1046: $r->print('<h3><font color="red">Co-Author: '.$uname.' at '.$udom.
1047: '</font></h3>');
1048: }
1049:
1050:
1051: &Debug($r, "loncfile::handler Form action is $ENV{'form.action'} ");
1052: if ($ENV{'form.action'} eq 'delete') {
1053:
1054: $r->print('<h3>Delete</h3>');
1055: } elsif ($ENV{'form.action'} eq 'rename') {
1056: $r->print('<h3>Rename</h3>');
1057: } elsif ($ENV{'form.action'} eq 'newdir') {
1058: $r->print('<h3>New Directory</h3>');
1059: } elsif ($ENV{'form.action'} eq 'copy') {
1060: $r->print('<h3>Copy</h3>');
1061: } elsif ($ENV{'form.action'} eq 'newfile' ||
1062: $ENV{'form.action'} eq 'newhtmlfile' ||
1063: $ENV{'form.action'} eq 'newproblemfile' ||
1064: $ENV{'form.action'} eq 'newpagefile' ||
1065: $ENV{'form.action'} eq 'newsequencefile' ||
1066: $ENV{'form.action'} eq 'newrightsfile' ||
1067: $ENV{'form.action'} eq 'newstyfile' ||
1068: $ENV{'form.action'} eq 'Select Action' ) {
1069: $r->print('<h3>New Resource</h3>');
1070: } else {
1071: $r->print('<p>Unknown Action '.$ENV{'form.action'}.' </p></body></html>');
1072: return OK;
1073: }
1074: if ($ENV{'form.phase'} eq 'two') {
1075: &Debug($r, "loncfile::handler entering phase2");
1076: &phasetwo($r,$fn,$uname,$udom);
1077: } else {
1078: &Debug($r, "loncfile::handler entering phase1");
1079: &phaseone($r,$fn,$uname,$udom);
1080: }
1081:
1082: $r->print('</body></html>');
1083: return OK;
1084: }
1085:
1086: 1;
1087: __END__
1088:
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>
![[BACK]](/icons/back.gif){kind=icon}
Return to loncfile.pm CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [LON-CAPA] / loncom / publisher