Annotation of loncom/publisher/lonupload.pm, revision 1.53.2.1
1.12 foxr 1:
1.1 www 2: # The LearningOnline Network with CAPA
3: # Handler to upload files into construction space
4: #
1.53.2.1! raeburn 5: # $Id: lonupload.pm,v 1.53 2010/12/26 03:09:11 raeburn Exp $
1.8 matthew 6: #
7: # Copyright Michigan State University Board of Trustees
8: #
9: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
10: #
11: # LON-CAPA is free software; you can redistribute it and/or modify
12: # it under the terms of the GNU General Public License as published by
13: # the Free Software Foundation; either version 2 of the License, or
14: # (at your option) any later version.
15: #
16: # LON-CAPA is distributed in the hope that it will be useful,
17: # but WITHOUT ANY WARRANTY; without even the implied warranty of
18: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19: # GNU General Public License for more details.
20: #
21: # You should have received a copy of the GNU General Public License
22: # along with LON-CAPA; if not, write to the Free Software
23: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
24: #
25: # /home/httpd/html/adm/gpl.txt
26: #
27: # http://www.lon-capa.org/
28: #
1.10 harris41 29: ###
1.1 www 30:
1.39 jms 31: =head1 NAME
32:
33: Apache::lonupload - upload files into construction space
34:
35: =head1 SYNOPSIS
36:
37: Invoked by /etc/httpd/conf/srm.conf:
38:
39: <Location /adm/upload>
40: PerlAccessHandler Apache::lonacc
41: SetHandler perl-script
42: PerlHandler Apache::lonupload
43: ErrorDocument 403 /adm/login
44: ErrorDocument 404 /adm/notfound.html
45: ErrorDocument 406 /adm/unauthorized.html
46: ErrorDocument 500 /adm/errorhandler
47: </Location>
48:
49: =head1 INTRODUCTION
50:
51: This module uploads a file sitting on a client computer into
52: library server construction space.
53:
54: This is part of the LearningOnline Network with CAPA project
55: described at http://www.lon-capa.org.
56:
57: =head1 HANDLER SUBROUTINE
58:
59: This routine is called by Apache and mod_perl.
60:
61: =over 4
62:
63: =item *
64:
65: Initialize variables
66:
67: =item *
68:
69: Start page output
70:
71: =item *
72:
1.51 raeburn 73: output relevant interface phase (phaseone, phasetwo, phasethree or phasefour)
1.39 jms 74:
75: =item *
76:
77: (phase one is to specify upload file; phase two is to handle conditions
78: subsequent to specification--like overwriting an existing file; phase three
79: is to handle processing of secondary uploads - of embedded objects in an
80: html file).
81:
82: =back
83:
84: =head1 OTHER SUBROUTINES
85:
1.40 jms 86: =over
1.39 jms 87:
1.40 jms 88: =item phaseone()
1.39 jms 89:
1.40 jms 90: Interface for specifying file to upload.
1.39 jms 91:
1.40 jms 92: =item phasetwo()
1.39 jms 93:
1.40 jms 94: Interface for handling post-conditions about uploading (such
1.39 jms 95: as overwriting an existing file).
96:
1.40 jms 97: =item phasethree()
1.39 jms 98:
1.40 jms 99: Interface for handling secondary uploads of embedded objects
1.39 jms 100: in an html file.
101:
1.51 raeburn 102: =item phasefour()
103:
104: Interface for handling optional renaming of links to embedded
105: objects.
106:
1.40 jms 107: =item upfile_store()
1.39 jms 108:
1.40 jms 109: Store contents of uploaded file into temporary space. Invoked
1.39 jms 110: by phaseone subroutine.
111:
1.40 jms 112: =item check_extension()
1.39 jms 113:
1.40 jms 114: Checks if filename extension is permitted and checks type
1.39 jms 115: of file - if html file, calls parser to check for embedded objects.
116: Invoked by phasetwo subroutine.
117:
118: =back
119:
120: =cut
121:
1.1 www 122: package Apache::lonupload;
123:
124: use strict;
125: use Apache::File;
126: use File::Copy;
1.13 foxr 127: use File::Basename;
1.1 www 128: use Apache::Constants qw(:common :http :methods);
1.3 www 129: use Apache::loncacc;
1.10 harris41 130: use Apache::loncommon();
1.13 foxr 131: use Apache::lonnet;
1.14 foxr 132: use HTML::Entities();
1.20 www 133: use Apache::lonlocal;
1.29 albertel 134: use Apache::lonnet;
1.34 albertel 135: use LONCAPA();
1.12 foxr 136:
137: my $DEBUG=0;
138:
139: sub Debug {
1.30 albertel 140: # Put out the indicated message but only if DEBUG is true.
1.22 albertel 141: if ($DEBUG) {
1.30 albertel 142: my ($r,$message) = @_;
143: $r->log_reason($message);
1.22 albertel 144: }
1.12 foxr 145: }
1.1 www 146:
1.2 www 147: sub upfile_store {
148: my $r=shift;
149:
1.29 albertel 150: my $fname=$env{'form.upfile.filename'};
1.2 www 151: $fname=~s/\W//g;
152:
1.29 albertel 153: chomp($env{'form.upfile'});
1.1 www 154:
1.29 albertel 155: my $datatoken=$env{'user.name'}.'_'.$env{'user.domain'}.
1.2 www 156: '_upload_'.$fname.'_'.time.'_'.$$;
157: {
158: my $fh=Apache::File->new('>'.$r->dir_config('lonDaemons').
159: '/tmp/'.$datatoken.'.tmp');
1.29 albertel 160: print $fh $env{'form.upfile'};
1.1 www 161: }
1.2 www 162: return $datatoken;
163: }
164:
165: sub phaseone {
1.25 raeburn 166: my ($r,$fn,$uname,$udom,$mode)=@_;
167: my $action = '/adm/upload';
168: if ($mode eq 'testbank') {
169: $action = '/adm/testbank';
170: } elsif ($mode eq 'imsimport') {
171: $action = '/adm/imsimport';
172: }
1.49 bisitz 173:
174: # Check for file to be uploaded
1.29 albertel 175: $env{'form.upfile.filename'}=~s/\\/\//g;
176: $env{'form.upfile.filename'}=~s/^.*\/([^\/]+)$/$1/;
1.49 bisitz 177: if (!$env{'form.upfile.filename'}) {
178: $r->print('<p class="LC_warning">'.&mt('No upload file specified.').'</p>');
179: return;
180: }
181:
182: $fn=~s/\/[^\/]+$//;
183: $fn=~s/([^\/])$/$1\//;
184: $fn.=$env{'form.upfile.filename'};
185: $fn=~s/^\///;
186: $fn=~s/(\/)+/\//g;
187: # Fn is the full path to the destination filename.
188:
189: # Check for illegal filename
190: &Debug($r, "Filename for upload: $fn");
191: if (!(($fn) && ($fn!~/\/$/))) {
192: $r->print('<p class="LC_warning">'.&mt('Illegal filename.').'</p>');
193: return;
194: }
195:
196: # Display additional options for upload
197: # and upload button
198: $r->print(
199: '<form action="'.$action.'" method="post" name="fileupload">'
200: .'<input type="hidden" name="phase" value="two" />'
201: .'<input type="hidden" name="datatoken" value="'.&upfile_store.'" />'
202: .'<input type="hidden" name="uploaduname" value="'.$uname.'" />'
203: );
204: $r->print(
205: &Apache::lonhtmlcommon::start_pick_box()
206: .&Apache::lonhtmlcommon::row_title(&mt('Save uploaded file as'))
207: .'<span class="LC_filename">/priv/'.$uname.'/</span>'
208: .'<input type="text" size="50" name="filename" value="'.$fn.'" />'
209: .&Apache::lonhtmlcommon::row_closure()
210: .&Apache::lonhtmlcommon::row_title(&mt('File Type'))
211: .'<select name="filetype">'
212: .'<option value="standard" selected="selected">'.&mt('Regular file').'</option>'
213: .'<option value="testbank">'.&mt('Testbank file').'</option>'
214: .'<option value="imsimport">'.&mt('IMS package').'</option>'
215: .'</select>'.&Apache::loncommon::help_open_topic("Uploading_File_Options")
216: .&Apache::lonhtmlcommon::row_closure(1)
217: .&Apache::lonhtmlcommon::end_pick_box()
218: );
219: $r->print(
220: '<p>'
221: .'<input type="button" value="'.&mt('Upload').'" onclick="javascript:verifyForm()"/>'
222: .'</p>'
223: .'</form>'
224: );
1.13 foxr 225:
1.49 bisitz 226: # Check for bad extension and warn user
227: if ($fn=~/\.(\w+)$/ &&
228: (&Apache::loncommon::fileembstyle($1) eq 'hdn')) {
1.41 bisitz 229: $r->print('<p class="LC_error">'
1.49 bisitz 230: .&mt('The extension on this file, [_1], is reserved internally by LON-CAPA.',
231: '<span class="LC_filename">'.$1.'</span>')
1.41 bisitz 232: .' <br />'.&mt('Please change the extension.')
233: .'</p>');
1.49 bisitz 234: } elsif($fn=~/\.(\w+)$/ &&
235: !defined(&Apache::loncommon::fileembstyle($1))) {
1.41 bisitz 236: $r->print('<p class="LC_error">'
1.49 bisitz 237: .&mt('The extension on this file, [_1], is not recognized by LON-CAPA.',
238: '<span class="LC_filename">'.$1.'</span>')
1.41 bisitz 239: .' <br />'.&mt('Please change the extension.')
240: .'</p>');
1.22 albertel 241: }
1.1 www 242: }
243:
244: sub phasetwo {
1.25 raeburn 245: my ($r,$tfn,$uname,$udom,$mode)=@_;
1.37 raeburn 246: my $output;
1.25 raeburn 247: my $action = '/adm/upload';
248: my $returnflag = '';
249: if ($mode eq 'testbank') {
250: $action = '/adm/testbank';
251: } elsif ($mode eq 'imsimport') {
252: $action = '/adm/imsimport';
253: }
1.22 albertel 254: my $fn='/priv/'.$uname.'/'.$tfn;
255: $fn=~s/\/+/\//g;
256: &Debug($r, "Filename is ".$tfn);
257: if ($tfn) {
258: &Debug($r, "Filename for tfn = ".$tfn);
259: my $target='/home/'.$uname.'/public_html'.$tfn;
260: &Debug($r, "target -> ".$target);
1.13 foxr 261: # target is the full filesystem path of the destination file.
1.22 albertel 262: my $base = &File::Basename::basename($fn);
263: my $path = &File::Basename::dirname($fn);
1.26 albertel 264: $base = &HTML::Entities::encode($base,'<>&"');
1.22 albertel 265: my $url = $path."/".$base;
266: &Debug($r, "URL is now ".$url);
1.29 albertel 267: my $datatoken=$env{'form.datatoken'};
1.22 albertel 268: if (($fn) && ($datatoken)) {
1.36 www 269: if ($env{'form.cancel'}) {
270: my $source=$r->dir_config('lonDaemons').'/tmp/'.$datatoken.'.tmp';
271: my $dirpath=$path.'/';
272: $dirpath=~s/\/+/\//g;
1.49 bisitz 273: $output .= '<p class="LC_warning">'.&mt('Upload cancelled.').'</p>'
274: .'<p><a href="'.$dirpath.'">'.
275: &mt('Back to Directory').'</a></p>';
276: } elsif ((-e $target) && (!$env{'form.override'})) {
277: $output .= '<form action="'.$action.'" method="post">'
278: .'<p class="LC_warning">'
279: .&mt('File [_1] already exists.',
280: '<span class="LC_filename">'.$fn.'</span>')
281: .'<input type="hidden" name="phase" value="two" />'
282: .'<input type="hidden" name="filename" value="'.$url.'" />'
283: .'<input type="hidden" name="datatoken" value="'.$datatoken.'" />'
284: .'<p>'
285: .'<input type="submit" name="cancel" value="'.&mt('Cancel').'" />'
286: .' <input type="submit" name="override" value="'.&mt('Overwrite').'" />'
287: .'</p>'
288: .'</form>';
1.36 www 289: } else {
1.22 albertel 290: my $source=$r->dir_config('lonDaemons').'/tmp/'.$datatoken.'.tmp';
1.27 www 291: my $dirpath=$path.'/';
292: $dirpath=~s/\/+/\//g;
1.22 albertel 293: # Check for bad extension and disallow upload
1.37 raeburn 294: my $result;
295: ($result,$returnflag) = &check_extension($fn,$mode,$source,$target,$action,$dirpath,$url);
296: $output .= $result;
1.22 albertel 297: }
298: } else {
1.37 raeburn 299: $output .= '<span class="LC_error">'.
1.22 albertel 300: &mt('Please use browser "Back" button and pick a filename').
1.37 raeburn 301: '</span><br />';
1.22 albertel 302: }
1.1 www 303: } else {
1.37 raeburn 304: $output .= '<span class="LC_error">'.
305: &mt('Please use browser "Back" button and pick a filename').
306: '</span><br />';
307: }
308: return ($output,$returnflag);
309: }
310:
311: sub check_extension {
312: my ($fn,$mode,$source,$target,$action,$dirpath,$url) = @_;
313: my ($result,$returnflag);
314: # Check for bad extension and disallow upload
315: if ($fn=~/\.(\w+)$/ &&
316: (&Apache::loncommon::fileembstyle($1) eq 'hdn')) {
1.49 bisitz 317: $result .= '<p class="LC_warning">'.
318: &mt('File [_1] could not be copied.',
319: '<span class="LC_filename">'.$fn.'</span> ').
320: '<br />'.
321: &mt('The extension on this file is reserved internally by LON-CAPA.').
322: '</p>';
1.37 raeburn 323: } elsif ($fn=~/\.(\w+)$/ &&
324: !defined(&Apache::loncommon::fileembstyle($1))) {
1.49 bisitz 325: $result .= '<p class="LC_warning">'.
326: &mt('File [_1] could not be copied.',
327: '<span class="LC_filename">'.$fn.'</span> ').
328: '<br />'.
329: &mt('The extension on this file is not recognized by LON-CAPA.').
330: '</p>';
1.37 raeburn 331: } elsif (-d $target) {
1.49 bisitz 332: $result .= '<p class="LC_warning">'.
333: &mt('File [_1] could not be copied.',
334: '<span class="LC_filename">'.$fn.'</span>').
335: '<br />'.
336: &mt('The target is an existing directory.').
337: '</p>';
1.37 raeburn 338: } elsif (copy($source,$target)) {
339: chmod(0660, $target); # Set permissions to rw-rw---.
340: if ($mode eq 'testbank' || $mode eq 'imsimport') {
341: $returnflag = 'ok';
1.49 bisitz 342: $result .= '<p class="LC_success">'
343: .&mt('Your file - [_1] - was uploaded successfully.',
344: '<span class="LC_filename">'.$fn.'<span>')
345: .'</p>';
1.37 raeburn 346: } else {
1.49 bisitz 347: $result .= '<p class="LC_success">'
348: .&mt('File copied.')
349: .'</p>';
1.37 raeburn 350: }
351: # Check for embedded objects.
352: my (%allfiles,%codebase);
353: my ($text,$header,$css,$js);
354: if (($mode ne 'imsimport') && ($target =~ /\.(htm|html|shtml)$/i)) {
355: my (%allfiles,%codebase);
356: &Apache::lonnet::extract_embedded_items($target,\%allfiles,\%codebase);
357: if (keys(%allfiles) > 0) {
1.50 raeburn 358: my ($currentpath) = ($url =~ m{^(.+)/[^/]+$});
1.51 raeburn 359: my $state = &embedded_form_elems('upload_embedded',$url,$mode);
360: my ($embedded,$num,$pathchg) =
361: &Apache::loncommon::ask_for_embedded_content($action,$state,\%allfiles,
362: \%codebase,
363: {'error_on_invalid_names' => 1,
364: 'ignore_remote_references' => 1,
365: 'current_path' => $currentpath});
1.50 raeburn 366: if ($embedded) {
1.51 raeburn 367: $result .= '<h3>'.&mt('Reference Warning').'</h3>';
368: if ($num) {
369: $result .= '<p>'.&mt('Completed upload of the file.').' '.&mt('This file contained references to other files.').'</p>'.
370: '<p>'.&mt('Please select the locations from which the referenced files are to be uploaded.').'</p>'.
371: $embedded;
372: if ($mode eq 'testbank') {
373: $returnflag = 'embedded';
374: $result .= '<p>'.&mt('Or [_1]continue[_2] the testbank import without these files.','<a href="javascript:document.testbankForm.submit();">','</a>').'</p>';
375: }
376: } else {
377: $result .= '<p>'.&mt('Completed upload of the file.').'</p>'.$embedded;
378: if ($pathchg) {
379: if ($mode eq 'testbank') {
380: $returnflag = 'embedded';
381: $result .= '<p>'.&mt('Or [_1]continue[_2] the testbank import without modifying the references(s).','<a href="javascript:document.testbankForm.submit();">','</a>').'</p>';
382: }
383: }
384: }
1.37 raeburn 385: }
386: }
387: }
388: if (($mode ne 'imsimport') && ($mode ne 'testbank')) {
1.49 bisitz 389: $result .= '<br /><a href="'.$url.'">'.
390: &mt('View file').'</a>';
1.37 raeburn 391: }
392: } else {
393: $result .= &mt('Failed to copy: [_1].',$!);
394: }
395: if ($mode ne 'imsimport' && $mode ne 'testbank') {
1.49 bisitz 396: $result .= '<br /><a href="'.$dirpath.'">'.
397: &mt('Back to Directory').'</a><br />';
1.37 raeburn 398: }
399: return ($result,$returnflag);
400: }
401:
402: sub phasethree {
403: my ($r,$fn,$uname,$udom,$mode) = @_;
1.51 raeburn 404: my $action = '/adm/upload';
405: if ($mode eq 'testbank') {
406: $action = '/adm/testbank';
407: } elsif ($mode eq 'imsimport') {
408: $action = '/adm/imsimport';
409: }
410: my $dir_root = '/home/'.$uname.'/public_html';
411: my $url_root = '/priv/'.$uname;
412: my $path = &File::Basename::dirname($fn);
413: my $filename = &HTML::Entities::encode($env{'form.filename'},'<>&"');
414: my $state = &embedded_form_elems('modify_orightml',$filename,$mode).
415: '<input type="hidden" name="phase" value="four" />';
416: my ($result,$returnflag) =
417: &Apache::loncommon::upload_embedded($mode,$path,$uname,$udom,
418: $dir_root,$url_root,undef,
419: undef,undef,$state,$action);
420: if ($mode ne 'imsimport' && $mode ne 'testbank') {
421: $result .= '<br /><h3><a href="'.$url_root.$fn.'">'.
422: &mt('View main file').'</a></h3>'.
423: '<h3><a href="'.$url_root.$path.'">'.
424: &mt('Back to Directory').'</a></h3><br />';
425: }
426: return ($result,$returnflag);
427: }
428:
429: sub embedded_form_elems {
430: my ($action,$filename,$mode) = @_;
431: return <<STATE;
432: <input type="hidden" name="action" value="$action" />
433: <input type="hidden" name="mode" value="$mode" />
434: <input type="hidden" name="filename" value="$filename" />
435: STATE
436: }
437:
438: sub phasefour {
439: my ($r,$fn,$uname,$udom,$mode) = @_;
440: my $action = '/adm/upload';
441: if ($mode eq 'testbank') {
442: $action = '/adm/testbank';
443: } elsif ($mode eq 'imsimport') {
444: $action = '/adm/imsimport';
445: }
1.37 raeburn 446: my $result;
447: my $dir_root = '/home/'.$uname.'/public_html';
448: my $url_root = '/priv/'.$uname;
449: my $path = &File::Basename::dirname($fn);
1.51 raeburn 450: $result .= &Apache::loncommon::modify_html_refs($mode,$path,
451: $uname,$udom,$dir_root);
1.37 raeburn 452: if ($mode ne 'imsimport' && $mode ne 'testbank') {
1.51 raeburn 453: $result .= '<br /><h3><a href="'.$url_root.$fn.'">'.
454: &mt('View main file').'</a></h3>'.
455: '<h3><a href="'.$url_root.$path.'">'.
456: &mt('Back to Directory').'</a></h3><br />';
1.1 www 457: }
1.37 raeburn 458: return $result;
1.1 www 459: }
460:
1.10 harris41 461: # ---------------------------------------------------------------- Main Handler
1.1 www 462: sub handler {
463:
1.22 albertel 464: my $r=shift;
1.1 www 465:
1.22 albertel 466: my $uname;
467: my $udom;
1.25 raeburn 468: my $javascript = '';
1.18 www 469: #
470: # phase two: re-attach user
471: #
1.29 albertel 472: if ($env{'form.uploaduname'}) {
473: $env{'form.filename'}='/priv/'.$env{'form.uploaduname'}.'/'.
474: $env{'form.filename'};
1.22 albertel 475: }
476:
1.29 albertel 477: unless ($env{'form.phase'} eq 'two') {
1.25 raeburn 478: $javascript = qq|
479: function verifyForm() {
1.28 raeburn 480: var mode = document.fileupload.filetype.options[document.fileupload.filetype.selectedIndex].value
1.25 raeburn 481: if (mode == "testbank") {
1.28 raeburn 482: document.fileupload.action = "/adm/testbank";
1.25 raeburn 483: }
484: if (mode == "imsimport") {
1.28 raeburn 485: document.fileupload.action = "/adm/imsimport";
1.25 raeburn 486: }
487: if (mode == "standard") {
1.28 raeburn 488: document.fileupload.action = "/adm/upload";
1.25 raeburn 489: }
1.28 raeburn 490: document.fileupload.submit();
1.25 raeburn 491: }
1.33 albertel 492: |;
1.25 raeburn 493: }
1.22 albertel 494: ($uname,$udom)=
1.29 albertel 495: &Apache::loncacc::constructaccess($env{'form.filename'},
1.22 albertel 496: $r->dir_config('lonDefDomain'));
1.37 raeburn 497:
1.22 albertel 498: unless (($uname) && ($udom)) {
499: $r->log_reason($uname.' at '.$udom.
1.29 albertel 500: ' trying to publish file '.$env{'form.filename'}.
1.22 albertel 501: ' - not authorized',
502: $r->filename);
503: return HTTP_NOT_ACCEPTABLE;
504: }
505:
1.53.2.1! raeburn 506: my ($fn,$trailfile);
1.29 albertel 507: if ($env{'form.filename'}) {
508: $fn=$env{'form.filename'};
1.43 raeburn 509: $fn=~s/^https?\:\/\/[^\/]+\///;
1.22 albertel 510: $fn=~s/^\///;
1.34 albertel 511: $fn=~s{(~|priv/)($LONCAPA::username_re)}{};
1.22 albertel 512: $fn=~s/\/+/\//g;
1.53.2.1! raeburn 513: $trailfile = "/home/$uname/public_html/".$trailfile;
! 514: $trailfile=~s{//+}{/}g;
1.22 albertel 515: } else {
1.29 albertel 516: $r->log_reason($env{'user.name'}.' at '.$env{'user.domain'}.
1.22 albertel 517: ' unspecified filename for upload', $r->filename);
518: return HTTP_NOT_FOUND;
519: }
1.1 www 520:
521: # ----------------------------------------------------------- Start page output
522:
523:
1.22 albertel 524: &Apache::loncommon::content_type($r,'text/html');
525: $r->send_http_header;
1.1 www 526:
1.31 albertel 527: $javascript = "<script type=\"text/javascript\">\n//<!--\n".
528: $javascript."\n// --></script>\n";
1.1 www 529:
1.47 bisitz 530: # Breadcrumbs
531: my $brcrum = [{'href' => &Apache::loncommon::authorspace(),
532: 'text' => 'Construction Space'},
533: {'href' => '/adm/upload',
534: 'text' => 'Upload file to Construction Space'}];
1.31 albertel 535: $r->print(&Apache::loncommon::start_page('Upload file to Construction Space',
1.47 bisitz 536: $javascript,
537: {'bread_crumbs' => $brcrum,})
538: .&Apache::loncommon::head_subbox(
1.53.2.1! raeburn 539: &Apache::loncommon::CSTR_pageheader($trailfile))
1.47 bisitz 540: );
1.3 www 541:
1.29 albertel 542: if (($uname ne $env{'user.name'}) || ($udom ne $env{'user.domain'})) {
1.52 www 543: $r->print('<p class="LC_info">'
1.46 bisitz 544: .&mt('Co-Author [_1]',$uname.':'.$udom)
1.44 bisitz 545: .'</p>'
546: );
1.22 albertel 547: }
1.51 raeburn 548: if ($env{'form.phase'} eq 'four') {
549: my $output = &phasefour($r,$fn,$uname,$udom,'author');
550: $r->print($output);
551: } elsif ($env{'form.phase'} eq 'three') {
1.53 raeburn 552: my ($output,$rtnflag) = &phasethree($r,$fn,$uname,$udom,'author');
1.37 raeburn 553: $r->print($output);
554: } elsif ($env{'form.phase'} eq 'two') {
555: my ($output,$returnflag) = &phasetwo($r,$fn,$uname,$udom);
556: $r->print($output);
1.22 albertel 557: } else {
558: &phaseone($r,$fn,$uname,$udom);
559: }
1.1 www 560:
1.31 albertel 561: $r->print(&Apache::loncommon::end_page());
1.22 albertel 562: return OK;
1.1 www 563: }
1.7 www 564:
565: 1;
566: __END__
1.10 harris41 567:
568:
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