Annotation of loncom/publisher/lonupload.pm, revision 1.58
1.1 www 1: # The LearningOnline Network with CAPA
2: # Handler to upload files into construction space
3: #
1.58 ! raeburn 4: # $Id: lonupload.pm,v 1.57 2011/11/02 14:40:16 raeburn Exp $
1.8 matthew 5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
1.10 harris41 28: ###
1.1 www 29:
1.39 jms 30: =head1 NAME
31:
32: Apache::lonupload - upload files into construction space
33:
34: =head1 SYNOPSIS
35:
36: Invoked by /etc/httpd/conf/srm.conf:
37:
38: <Location /adm/upload>
39: PerlAccessHandler Apache::lonacc
40: SetHandler perl-script
41: PerlHandler Apache::lonupload
42: ErrorDocument 403 /adm/login
43: ErrorDocument 404 /adm/notfound.html
44: ErrorDocument 406 /adm/unauthorized.html
45: ErrorDocument 500 /adm/errorhandler
46: </Location>
47:
48: =head1 INTRODUCTION
49:
50: This module uploads a file sitting on a client computer into
51: library server construction space.
52:
53: This is part of the LearningOnline Network with CAPA project
54: described at http://www.lon-capa.org.
55:
56: =head1 HANDLER SUBROUTINE
57:
58: This routine is called by Apache and mod_perl.
59:
60: =over 4
61:
62: =item *
63:
64: Initialize variables
65:
66: =item *
67:
68: Start page output
69:
70: =item *
71:
1.51 raeburn 72: output relevant interface phase (phaseone, phasetwo, phasethree or phasefour)
1.39 jms 73:
74: =item *
75:
76: (phase one is to specify upload file; phase two is to handle conditions
77: subsequent to specification--like overwriting an existing file; phase three
78: is to handle processing of secondary uploads - of embedded objects in an
79: html file).
80:
81: =back
82:
83: =head1 OTHER SUBROUTINES
84:
1.40 jms 85: =over
1.39 jms 86:
1.40 jms 87: =item phaseone()
1.39 jms 88:
1.40 jms 89: Interface for specifying file to upload.
1.39 jms 90:
1.40 jms 91: =item phasetwo()
1.39 jms 92:
1.40 jms 93: Interface for handling post-conditions about uploading (such
1.39 jms 94: as overwriting an existing file).
95:
1.40 jms 96: =item phasethree()
1.39 jms 97:
1.40 jms 98: Interface for handling secondary uploads of embedded objects
1.39 jms 99: in an html file.
100:
1.51 raeburn 101: =item phasefour()
102:
103: Interface for handling optional renaming of links to embedded
104: objects.
105:
1.40 jms 106: =item upfile_store()
1.39 jms 107:
1.40 jms 108: Store contents of uploaded file into temporary space. Invoked
1.39 jms 109: by phaseone subroutine.
110:
1.40 jms 111: =item check_extension()
1.39 jms 112:
1.40 jms 113: Checks if filename extension is permitted and checks type
1.39 jms 114: of file - if html file, calls parser to check for embedded objects.
115: Invoked by phasetwo subroutine.
116:
117: =back
118:
119: =cut
120:
1.1 www 121: package Apache::lonupload;
122:
123: use strict;
124: use Apache::File;
125: use File::Copy;
1.13 foxr 126: use File::Basename;
1.1 www 127: use Apache::Constants qw(:common :http :methods);
1.3 www 128: use Apache::loncacc;
1.10 harris41 129: use Apache::loncommon();
1.13 foxr 130: use Apache::lonnet;
1.14 foxr 131: use HTML::Entities();
1.20 www 132: use Apache::lonlocal;
1.29 albertel 133: use Apache::lonnet;
1.34 albertel 134: use LONCAPA();
1.12 foxr 135:
136: my $DEBUG=0;
137:
138: sub Debug {
1.30 albertel 139: # Put out the indicated message but only if DEBUG is true.
1.22 albertel 140: if ($DEBUG) {
1.30 albertel 141: my ($r,$message) = @_;
142: $r->log_reason($message);
1.22 albertel 143: }
1.12 foxr 144: }
1.1 www 145:
1.2 www 146: sub upfile_store {
147: my $r=shift;
148:
1.29 albertel 149: my $fname=$env{'form.upfile.filename'};
1.2 www 150: $fname=~s/\W//g;
151:
1.29 albertel 152: chomp($env{'form.upfile'});
1.1 www 153:
1.29 albertel 154: my $datatoken=$env{'user.name'}.'_'.$env{'user.domain'}.
1.2 www 155: '_upload_'.$fname.'_'.time.'_'.$$;
156: {
157: my $fh=Apache::File->new('>'.$r->dir_config('lonDaemons').
158: '/tmp/'.$datatoken.'.tmp');
1.29 albertel 159: print $fh $env{'form.upfile'};
1.1 www 160: }
1.2 www 161: return $datatoken;
162: }
163:
164: sub phaseone {
1.58 ! raeburn 165: my ($r,$fn,$mode)=@_;
1.25 raeburn 166: my $action = '/adm/upload';
167: if ($mode eq 'testbank') {
168: $action = '/adm/testbank';
169: } elsif ($mode eq 'imsimport') {
170: $action = '/adm/imsimport';
171: }
1.49 bisitz 172:
173: # Check for file to be uploaded
1.29 albertel 174: $env{'form.upfile.filename'}=~s/\\/\//g;
175: $env{'form.upfile.filename'}=~s/^.*\/([^\/]+)$/$1/;
1.49 bisitz 176: if (!$env{'form.upfile.filename'}) {
177: $r->print('<p class="LC_warning">'.&mt('No upload file specified.').'</p>');
178: return;
179: }
180:
1.55 www 181: # Append the name of the uploaded file
1.49 bisitz 182: $fn.=$env{'form.upfile.filename'};
183: $fn=~s/(\/)+/\//g;
184:
185: # Check for illegal filename
186: &Debug($r, "Filename for upload: $fn");
187: if (!(($fn) && ($fn!~/\/$/))) {
188: $r->print('<p class="LC_warning">'.&mt('Illegal filename.').'</p>');
189: return;
190: }
1.55 www 191: # Split part that I can change from the part that I cannot change
192: my ($fn1,$fn2)=($fn=~/^(\/priv\/[^\/]+\/[^\/]+\/)(.*)$/);
1.49 bisitz 193: # Display additional options for upload
194: # and upload button
195: $r->print(
196: '<form action="'.$action.'" method="post" name="fileupload">'
197: .'<input type="hidden" name="phase" value="two" />'
198: .'<input type="hidden" name="datatoken" value="'.&upfile_store.'" />'
199: );
200: $r->print(
201: &Apache::lonhtmlcommon::start_pick_box()
202: .&Apache::lonhtmlcommon::row_title(&mt('Save uploaded file as'))
1.55 www 203: .'<span class="LC_filename">'.$fn1.'</span>'
204: .'<input type="hidden" name="filename1" value="'.$fn1.'" />'
205: .'<input type="text" size="50" name="filename2" value="'.$fn2.'" />'
1.49 bisitz 206: .&Apache::lonhtmlcommon::row_closure()
207: .&Apache::lonhtmlcommon::row_title(&mt('File Type'))
208: .'<select name="filetype">'
209: .'<option value="standard" selected="selected">'.&mt('Regular file').'</option>'
210: .'<option value="testbank">'.&mt('Testbank file').'</option>'
211: .'<option value="imsimport">'.&mt('IMS package').'</option>'
212: .'</select>'.&Apache::loncommon::help_open_topic("Uploading_File_Options")
213: .&Apache::lonhtmlcommon::row_closure(1)
214: .&Apache::lonhtmlcommon::end_pick_box()
215: );
216: $r->print(
217: '<p>'
218: .'<input type="button" value="'.&mt('Upload').'" onclick="javascript:verifyForm()"/>'
219: .'</p>'
220: .'</form>'
221: );
1.13 foxr 222:
1.49 bisitz 223: # Check for bad extension and warn user
224: if ($fn=~/\.(\w+)$/ &&
225: (&Apache::loncommon::fileembstyle($1) eq 'hdn')) {
1.41 bisitz 226: $r->print('<p class="LC_error">'
1.49 bisitz 227: .&mt('The extension on this file, [_1], is reserved internally by LON-CAPA.',
228: '<span class="LC_filename">'.$1.'</span>')
1.41 bisitz 229: .' <br />'.&mt('Please change the extension.')
230: .'</p>');
1.49 bisitz 231: } elsif($fn=~/\.(\w+)$/ &&
232: !defined(&Apache::loncommon::fileembstyle($1))) {
1.41 bisitz 233: $r->print('<p class="LC_error">'
1.49 bisitz 234: .&mt('The extension on this file, [_1], is not recognized by LON-CAPA.',
235: '<span class="LC_filename">'.$1.'</span>')
1.41 bisitz 236: .' <br />'.&mt('Please change the extension.')
237: .'</p>');
1.22 albertel 238: }
1.1 www 239: }
240:
241: sub phasetwo {
1.58 ! raeburn 242: my ($r,$fn,$mode)=@_;
1.55 www 243:
1.37 raeburn 244: my $output;
1.25 raeburn 245: my $action = '/adm/upload';
246: my $returnflag = '';
247: if ($mode eq 'testbank') {
248: $action = '/adm/testbank';
249: } elsif ($mode eq 'imsimport') {
250: $action = '/adm/imsimport';
251: }
1.22 albertel 252: $fn=~s/\/+/\//g;
1.55 www 253: if ($fn) {
1.58 ! raeburn 254: my $target= $r->dir_config('lonDocRoot').'/'.$fn;
1.22 albertel 255: &Debug($r, "target -> ".$target);
1.13 foxr 256: # target is the full filesystem path of the destination file.
1.22 albertel 257: my $base = &File::Basename::basename($fn);
258: my $path = &File::Basename::dirname($fn);
1.26 albertel 259: $base = &HTML::Entities::encode($base,'<>&"');
1.22 albertel 260: my $url = $path."/".$base;
261: &Debug($r, "URL is now ".$url);
1.29 albertel 262: my $datatoken=$env{'form.datatoken'};
1.22 albertel 263: if (($fn) && ($datatoken)) {
1.36 www 264: if ($env{'form.cancel'}) {
265: my $source=$r->dir_config('lonDaemons').'/tmp/'.$datatoken.'.tmp';
266: my $dirpath=$path.'/';
267: $dirpath=~s/\/+/\//g;
1.49 bisitz 268: $output .= '<p class="LC_warning">'.&mt('Upload cancelled.').'</p>'
269: .'<p><a href="'.$dirpath.'">'.
270: &mt('Back to Directory').'</a></p>';
271: } elsif ((-e $target) && (!$env{'form.override'})) {
272: $output .= '<form action="'.$action.'" method="post">'
273: .'<p class="LC_warning">'
274: .&mt('File [_1] already exists.',
275: '<span class="LC_filename">'.$fn.'</span>')
276: .'<input type="hidden" name="phase" value="two" />'
277: .'<input type="hidden" name="filename" value="'.$url.'" />'
278: .'<input type="hidden" name="datatoken" value="'.$datatoken.'" />'
279: .'<p>'
280: .'<input type="submit" name="cancel" value="'.&mt('Cancel').'" />'
281: .' <input type="submit" name="override" value="'.&mt('Overwrite').'" />'
282: .'</p>'
283: .'</form>';
1.36 www 284: } else {
1.22 albertel 285: my $source=$r->dir_config('lonDaemons').'/tmp/'.$datatoken.'.tmp';
1.27 www 286: my $dirpath=$path.'/';
287: $dirpath=~s/\/+/\//g;
1.22 albertel 288: # Check for bad extension and disallow upload
1.37 raeburn 289: my $result;
290: ($result,$returnflag) = &check_extension($fn,$mode,$source,$target,$action,$dirpath,$url);
291: $output .= $result;
1.22 albertel 292: }
293: } else {
1.37 raeburn 294: $output .= '<span class="LC_error">'.
1.22 albertel 295: &mt('Please use browser "Back" button and pick a filename').
1.37 raeburn 296: '</span><br />';
1.22 albertel 297: }
1.1 www 298: } else {
1.37 raeburn 299: $output .= '<span class="LC_error">'.
300: &mt('Please use browser "Back" button and pick a filename').
301: '</span><br />';
302: }
303: return ($output,$returnflag);
304: }
305:
306: sub check_extension {
307: my ($fn,$mode,$source,$target,$action,$dirpath,$url) = @_;
308: my ($result,$returnflag);
309: # Check for bad extension and disallow upload
310: if ($fn=~/\.(\w+)$/ &&
311: (&Apache::loncommon::fileembstyle($1) eq 'hdn')) {
1.49 bisitz 312: $result .= '<p class="LC_warning">'.
313: &mt('File [_1] could not be copied.',
314: '<span class="LC_filename">'.$fn.'</span> ').
315: '<br />'.
316: &mt('The extension on this file is reserved internally by LON-CAPA.').
317: '</p>';
1.37 raeburn 318: } elsif ($fn=~/\.(\w+)$/ &&
319: !defined(&Apache::loncommon::fileembstyle($1))) {
1.49 bisitz 320: $result .= '<p class="LC_warning">'.
321: &mt('File [_1] could not be copied.',
322: '<span class="LC_filename">'.$fn.'</span> ').
323: '<br />'.
324: &mt('The extension on this file is not recognized by LON-CAPA.').
325: '</p>';
1.37 raeburn 326: } elsif (-d $target) {
1.49 bisitz 327: $result .= '<p class="LC_warning">'.
328: &mt('File [_1] could not be copied.',
329: '<span class="LC_filename">'.$fn.'</span>').
330: '<br />'.
331: &mt('The target is an existing directory.').
332: '</p>';
1.37 raeburn 333: } elsif (copy($source,$target)) {
334: chmod(0660, $target); # Set permissions to rw-rw---.
335: if ($mode eq 'testbank' || $mode eq 'imsimport') {
336: $returnflag = 'ok';
1.49 bisitz 337: $result .= '<p class="LC_success">'
338: .&mt('Your file - [_1] - was uploaded successfully.',
339: '<span class="LC_filename">'.$fn.'<span>')
340: .'</p>';
1.37 raeburn 341: } else {
1.49 bisitz 342: $result .= '<p class="LC_success">'
343: .&mt('File copied.')
344: .'</p>';
1.37 raeburn 345: }
346: # Check for embedded objects.
347: my (%allfiles,%codebase);
348: my ($text,$header,$css,$js);
349: if (($mode ne 'imsimport') && ($target =~ /\.(htm|html|shtml)$/i)) {
350: my (%allfiles,%codebase);
351: &Apache::lonnet::extract_embedded_items($target,\%allfiles,\%codebase);
352: if (keys(%allfiles) > 0) {
1.50 raeburn 353: my ($currentpath) = ($url =~ m{^(.+)/[^/]+$});
1.51 raeburn 354: my $state = &embedded_form_elems('upload_embedded',$url,$mode);
355: my ($embedded,$num,$pathchg) =
356: &Apache::loncommon::ask_for_embedded_content($action,$state,\%allfiles,
357: \%codebase,
358: {'error_on_invalid_names' => 1,
359: 'ignore_remote_references' => 1,
360: 'current_path' => $currentpath});
1.50 raeburn 361: if ($embedded) {
1.51 raeburn 362: $result .= '<h3>'.&mt('Reference Warning').'</h3>';
363: if ($num) {
364: $result .= '<p>'.&mt('Completed upload of the file.').' '.&mt('This file contained references to other files.').'</p>'.
365: '<p>'.&mt('Please select the locations from which the referenced files are to be uploaded.').'</p>'.
366: $embedded;
367: if ($mode eq 'testbank') {
368: $returnflag = 'embedded';
369: $result .= '<p>'.&mt('Or [_1]continue[_2] the testbank import without these files.','<a href="javascript:document.testbankForm.submit();">','</a>').'</p>';
370: }
371: } else {
372: $result .= '<p>'.&mt('Completed upload of the file.').'</p>'.$embedded;
373: if ($pathchg) {
374: if ($mode eq 'testbank') {
375: $returnflag = 'embedded';
376: $result .= '<p>'.&mt('Or [_1]continue[_2] the testbank import without modifying the references(s).','<a href="javascript:document.testbankForm.submit();">','</a>').'</p>';
377: }
378: }
379: }
1.37 raeburn 380: }
381: }
382: }
383: if (($mode ne 'imsimport') && ($mode ne 'testbank')) {
1.49 bisitz 384: $result .= '<br /><a href="'.$url.'">'.
385: &mt('View file').'</a>';
1.37 raeburn 386: }
387: } else {
388: $result .= &mt('Failed to copy: [_1].',$!);
389: }
390: if ($mode ne 'imsimport' && $mode ne 'testbank') {
1.49 bisitz 391: $result .= '<br /><a href="'.$dirpath.'">'.
392: &mt('Back to Directory').'</a><br />';
1.37 raeburn 393: }
394: return ($result,$returnflag);
395: }
396:
397: sub phasethree {
398: my ($r,$fn,$uname,$udom,$mode) = @_;
1.55 www 399:
1.51 raeburn 400: my $action = '/adm/upload';
401: if ($mode eq 'testbank') {
402: $action = '/adm/testbank';
403: } elsif ($mode eq 'imsimport') {
404: $action = '/adm/imsimport';
405: }
1.56 raeburn 406: my $url_root = "/priv/$udom/$uname";
407: my $dir_root = $r->dir_config('lonDocRoot').$url_root;
1.51 raeburn 408: my $path = &File::Basename::dirname($fn);
1.58 ! raeburn 409: $path =~ s{^\Q$url_root\E}{};
1.51 raeburn 410: my $filename = &HTML::Entities::encode($env{'form.filename'},'<>&"');
411: my $state = &embedded_form_elems('modify_orightml',$filename,$mode).
412: '<input type="hidden" name="phase" value="four" />';
413: my ($result,$returnflag) =
414: &Apache::loncommon::upload_embedded($mode,$path,$uname,$udom,
415: $dir_root,$url_root,undef,
416: undef,undef,$state,$action);
417: if ($mode ne 'imsimport' && $mode ne 'testbank') {
1.58 ! raeburn 418: $result .= '<br /><h3><a href="'.$fn.'">'.
1.51 raeburn 419: &mt('View main file').'</a></h3>'.
420: '<h3><a href="'.$url_root.$path.'">'.
421: &mt('Back to Directory').'</a></h3><br />';
422: }
423: return ($result,$returnflag);
424: }
425:
426: sub embedded_form_elems {
427: my ($action,$filename,$mode) = @_;
428: return <<STATE;
429: <input type="hidden" name="action" value="$action" />
430: <input type="hidden" name="mode" value="$mode" />
431: <input type="hidden" name="filename" value="$filename" />
432: STATE
433: }
434:
435: sub phasefour {
436: my ($r,$fn,$uname,$udom,$mode) = @_;
1.55 www 437:
1.51 raeburn 438: my $action = '/adm/upload';
439: if ($mode eq 'testbank') {
440: $action = '/adm/testbank';
441: } elsif ($mode eq 'imsimport') {
442: $action = '/adm/imsimport';
443: }
1.37 raeburn 444: my $result;
1.56 raeburn 445: my $url_root = "/priv/$udom/$uname";
446: my $dir_root = $r->dir_config('lonDocRoot').$url_root;
1.37 raeburn 447: my $path = &File::Basename::dirname($fn);
1.58 ! raeburn 448: $path =~ s{^\Q$url_root\E}{};
1.51 raeburn 449: $result .= &Apache::loncommon::modify_html_refs($mode,$path,
450: $uname,$udom,$dir_root);
1.37 raeburn 451: if ($mode ne 'imsimport' && $mode ne 'testbank') {
1.58 ! raeburn 452: $result .= '<br /><h3><a href="'.$fn.'">'.
1.51 raeburn 453: &mt('View main file').'</a></h3>'.
454: '<h3><a href="'.$url_root.$path.'">'.
455: &mt('Back to Directory').'</a></h3><br />';
1.1 www 456: }
1.37 raeburn 457: return $result;
1.1 www 458: }
459:
1.10 harris41 460: # ---------------------------------------------------------------- Main Handler
1.1 www 461: sub handler {
462:
1.22 albertel 463: my $r=shift;
1.25 raeburn 464: my $javascript = '';
1.55 www 465: my $fn=$env{'form.filename'};
466:
467: if ($env{'form.filename1'}) {
468: $fn=$env{'form.filename1'}.$env{'form.filename2'};
469: }
470: $fn=~s/\/+/\//g;
471:
472: unless ($fn) {
473: $r->log_reason($env{'user.name'}.' at '.$env{'user.domain'}.
474: ' unspecified filename for upload', $r->filename);
475: return HTTP_NOT_FOUND;
1.22 albertel 476: }
477:
1.58 ! raeburn 478: my ($uname,$udom)=&Apache::loncacc::constructaccess($fn);
! 479:
! 480: unless (($uname) && ($udom)) {
! 481: $r->log_reason($uname.' at '.$udom.
! 482: ' trying to publish file '.$env{'form.filename'}.
! 483: ' - not authorized',
! 484: $r->filename);
! 485: return HTTP_NOT_ACCEPTABLE;
! 486: }
! 487:
! 488: # ----------------------------------------------------------- Start page output
! 489:
! 490: &Apache::loncommon::content_type($r,'text/html');
! 491: $r->send_http_header;
! 492:
1.29 albertel 493: unless ($env{'form.phase'} eq 'two') {
1.58 ! raeburn 494: $javascript = <<"ENDJS";
! 495: <script type="text/javascript">
! 496: // <![CDATA[
1.25 raeburn 497: function verifyForm() {
1.28 raeburn 498: var mode = document.fileupload.filetype.options[document.fileupload.filetype.selectedIndex].value
1.25 raeburn 499: if (mode == "testbank") {
1.28 raeburn 500: document.fileupload.action = "/adm/testbank";
1.25 raeburn 501: }
502: if (mode == "imsimport") {
1.28 raeburn 503: document.fileupload.action = "/adm/imsimport";
1.25 raeburn 504: }
505: if (mode == "standard") {
1.28 raeburn 506: document.fileupload.action = "/adm/upload";
1.25 raeburn 507: }
1.28 raeburn 508: document.fileupload.submit();
1.25 raeburn 509: }
1.58 ! raeburn 510: // ]]>
! 511: </script>
! 512: ENDJS
1.25 raeburn 513: }
1.1 www 514:
1.58 ! raeburn 515: my $londocroot = $r->dir_config('lonDocRoot');
! 516: my $trailfile = $fn;
! 517: $trailfile =~ s{^/(priv/)}{$londocroot/$1};
1.1 www 518:
1.47 bisitz 519: # Breadcrumbs
520: my $brcrum = [{'href' => &Apache::loncommon::authorspace(),
521: 'text' => 'Construction Space'},
522: {'href' => '/adm/upload',
523: 'text' => 'Upload file to Construction Space'}];
1.31 albertel 524: $r->print(&Apache::loncommon::start_page('Upload file to Construction Space',
1.47 bisitz 525: $javascript,
526: {'bread_crumbs' => $brcrum,})
527: .&Apache::loncommon::head_subbox(
1.58 ! raeburn 528: &Apache::loncommon::CSTR_pageheader($trailfile))
1.47 bisitz 529: );
1.3 www 530:
1.29 albertel 531: if (($uname ne $env{'user.name'}) || ($udom ne $env{'user.domain'})) {
1.52 www 532: $r->print('<p class="LC_info">'
1.46 bisitz 533: .&mt('Co-Author [_1]',$uname.':'.$udom)
1.44 bisitz 534: .'</p>'
535: );
1.22 albertel 536: }
1.51 raeburn 537: if ($env{'form.phase'} eq 'four') {
538: my $output = &phasefour($r,$fn,$uname,$udom,'author');
539: $r->print($output);
540: } elsif ($env{'form.phase'} eq 'three') {
1.53 raeburn 541: my ($output,$rtnflag) = &phasethree($r,$fn,$uname,$udom,'author');
1.37 raeburn 542: $r->print($output);
543: } elsif ($env{'form.phase'} eq 'two') {
1.58 ! raeburn 544: my ($output,$returnflag) = &phasetwo($r,$fn);
1.37 raeburn 545: $r->print($output);
1.22 albertel 546: } else {
1.58 ! raeburn 547: &phaseone($r,$fn);
1.22 albertel 548: }
1.1 www 549:
1.31 albertel 550: $r->print(&Apache::loncommon::end_page());
1.22 albertel 551: return OK;
1.1 www 552: }
1.7 www 553:
554: 1;
555: __END__
1.10 harris41 556:
557:
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