Annotation of loncom/publisher/lonupload.pm, revision 1.61
1.1 www 1: # The LearningOnline Network with CAPA
2: # Handler to upload files into construction space
3: #
1.61 ! raeburn 4: # $Id: lonupload.pm,v 1.60 2012/04/16 19:32:04 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);
1.10 harris41 128: use Apache::loncommon();
1.13 foxr 129: use Apache::lonnet;
1.14 foxr 130: use HTML::Entities();
1.20 www 131: use Apache::lonlocal;
1.29 albertel 132: use Apache::lonnet;
1.34 albertel 133: use LONCAPA();
1.12 foxr 134:
135: my $DEBUG=0;
136:
137: sub Debug {
1.30 albertel 138: # Put out the indicated message but only if DEBUG is true.
1.22 albertel 139: if ($DEBUG) {
1.30 albertel 140: my ($r,$message) = @_;
141: $r->log_reason($message);
1.22 albertel 142: }
1.12 foxr 143: }
1.1 www 144:
1.2 www 145: sub upfile_store {
146: my $r=shift;
147:
1.29 albertel 148: my $fname=$env{'form.upfile.filename'};
1.2 www 149: $fname=~s/\W//g;
150:
1.29 albertel 151: chomp($env{'form.upfile'});
1.1 www 152:
1.29 albertel 153: my $datatoken=$env{'user.name'}.'_'.$env{'user.domain'}.
1.2 www 154: '_upload_'.$fname.'_'.time.'_'.$$;
155: {
156: my $fh=Apache::File->new('>'.$r->dir_config('lonDaemons').
157: '/tmp/'.$datatoken.'.tmp');
1.29 albertel 158: print $fh $env{'form.upfile'};
1.1 www 159: }
1.2 www 160: return $datatoken;
161: }
162:
163: sub phaseone {
1.58 raeburn 164: my ($r,$fn,$mode)=@_;
1.25 raeburn 165: my $action = '/adm/upload';
166: if ($mode eq 'testbank') {
167: $action = '/adm/testbank';
168: } elsif ($mode eq 'imsimport') {
169: $action = '/adm/imsimport';
170: }
1.49 bisitz 171:
172: # Check for file to be uploaded
1.29 albertel 173: $env{'form.upfile.filename'}=~s/\\/\//g;
174: $env{'form.upfile.filename'}=~s/^.*\/([^\/]+)$/$1/;
1.49 bisitz 175: if (!$env{'form.upfile.filename'}) {
176: $r->print('<p class="LC_warning">'.&mt('No upload file specified.').'</p>');
177: return;
178: }
179:
1.55 www 180: # Append the name of the uploaded file
1.49 bisitz 181: $fn.=$env{'form.upfile.filename'};
182: $fn=~s/(\/)+/\//g;
183:
184: # Check for illegal filename
185: &Debug($r, "Filename for upload: $fn");
186: if (!(($fn) && ($fn!~/\/$/))) {
187: $r->print('<p class="LC_warning">'.&mt('Illegal filename.').'</p>');
188: return;
189: }
1.55 www 190: # Split part that I can change from the part that I cannot change
191: my ($fn1,$fn2)=($fn=~/^(\/priv\/[^\/]+\/[^\/]+\/)(.*)$/);
1.49 bisitz 192: # Display additional options for upload
193: # and upload button
194: $r->print(
195: '<form action="'.$action.'" method="post" name="fileupload">'
196: .'<input type="hidden" name="phase" value="two" />'
197: .'<input type="hidden" name="datatoken" value="'.&upfile_store.'" />'
198: );
199: $r->print(
200: &Apache::lonhtmlcommon::start_pick_box()
201: .&Apache::lonhtmlcommon::row_title(&mt('Save uploaded file as'))
1.55 www 202: .'<span class="LC_filename">'.$fn1.'</span>'
203: .'<input type="hidden" name="filename1" value="'.$fn1.'" />'
204: .'<input type="text" size="50" name="filename2" value="'.$fn2.'" />'
1.49 bisitz 205: .&Apache::lonhtmlcommon::row_closure()
206: .&Apache::lonhtmlcommon::row_title(&mt('File Type'))
207: .'<select name="filetype">'
208: .'<option value="standard" selected="selected">'.&mt('Regular file').'</option>'
209: .'<option value="testbank">'.&mt('Testbank file').'</option>'
210: .'<option value="imsimport">'.&mt('IMS package').'</option>'
211: .'</select>'.&Apache::loncommon::help_open_topic("Uploading_File_Options")
212: .&Apache::lonhtmlcommon::row_closure(1)
213: .&Apache::lonhtmlcommon::end_pick_box()
214: );
215: $r->print(
216: '<p>'
217: .'<input type="button" value="'.&mt('Upload').'" onclick="javascript:verifyForm()"/>'
218: .'</p>'
219: .'</form>'
220: );
1.13 foxr 221:
1.49 bisitz 222: # Check for bad extension and warn user
223: if ($fn=~/\.(\w+)$/ &&
224: (&Apache::loncommon::fileembstyle($1) eq 'hdn')) {
1.41 bisitz 225: $r->print('<p class="LC_error">'
1.49 bisitz 226: .&mt('The extension on this file, [_1], is reserved internally by LON-CAPA.',
227: '<span class="LC_filename">'.$1.'</span>')
1.41 bisitz 228: .' <br />'.&mt('Please change the extension.')
229: .'</p>');
1.49 bisitz 230: } elsif($fn=~/\.(\w+)$/ &&
231: !defined(&Apache::loncommon::fileembstyle($1))) {
1.41 bisitz 232: $r->print('<p class="LC_error">'
1.49 bisitz 233: .&mt('The extension on this file, [_1], is not recognized by LON-CAPA.',
234: '<span class="LC_filename">'.$1.'</span>')
1.41 bisitz 235: .' <br />'.&mt('Please change the extension.')
236: .'</p>');
1.22 albertel 237: }
1.1 www 238: }
239:
240: sub phasetwo {
1.58 raeburn 241: my ($r,$fn,$mode)=@_;
1.55 www 242:
1.37 raeburn 243: my $output;
1.25 raeburn 244: my $action = '/adm/upload';
245: my $returnflag = '';
246: if ($mode eq 'testbank') {
247: $action = '/adm/testbank';
248: } elsif ($mode eq 'imsimport') {
249: $action = '/adm/imsimport';
250: }
1.22 albertel 251: $fn=~s/\/+/\//g;
1.55 www 252: if ($fn) {
1.58 raeburn 253: my $target= $r->dir_config('lonDocRoot').'/'.$fn;
1.22 albertel 254: &Debug($r, "target -> ".$target);
1.13 foxr 255: # target is the full filesystem path of the destination file.
1.22 albertel 256: my $base = &File::Basename::basename($fn);
257: my $path = &File::Basename::dirname($fn);
1.26 albertel 258: $base = &HTML::Entities::encode($base,'<>&"');
1.22 albertel 259: my $url = $path."/".$base;
260: &Debug($r, "URL is now ".$url);
1.29 albertel 261: my $datatoken=$env{'form.datatoken'};
1.22 albertel 262: if (($fn) && ($datatoken)) {
1.36 www 263: if ($env{'form.cancel'}) {
264: my $source=$r->dir_config('lonDaemons').'/tmp/'.$datatoken.'.tmp';
265: my $dirpath=$path.'/';
266: $dirpath=~s/\/+/\//g;
1.49 bisitz 267: $output .= '<p class="LC_warning">'.&mt('Upload cancelled.').'</p>'
268: .'<p><a href="'.$dirpath.'">'.
269: &mt('Back to Directory').'</a></p>';
270: } elsif ((-e $target) && (!$env{'form.override'})) {
271: $output .= '<form action="'.$action.'" method="post">'
272: .'<p class="LC_warning">'
273: .&mt('File [_1] already exists.',
274: '<span class="LC_filename">'.$fn.'</span>')
275: .'<input type="hidden" name="phase" value="two" />'
276: .'<input type="hidden" name="filename" value="'.$url.'" />'
277: .'<input type="hidden" name="datatoken" value="'.$datatoken.'" />'
278: .'<p>'
279: .'<input type="submit" name="cancel" value="'.&mt('Cancel').'" />'
280: .' <input type="submit" name="override" value="'.&mt('Overwrite').'" />'
281: .'</p>'
282: .'</form>';
1.36 www 283: } else {
1.22 albertel 284: my $source=$r->dir_config('lonDaemons').'/tmp/'.$datatoken.'.tmp';
1.27 www 285: my $dirpath=$path.'/';
286: $dirpath=~s/\/+/\//g;
1.22 albertel 287: # Check for bad extension and disallow upload
1.37 raeburn 288: my $result;
289: ($result,$returnflag) = &check_extension($fn,$mode,$source,$target,$action,$dirpath,$url);
290: $output .= $result;
1.22 albertel 291: }
292: } else {
1.37 raeburn 293: $output .= '<span class="LC_error">'.
1.22 albertel 294: &mt('Please use browser "Back" button and pick a filename').
1.37 raeburn 295: '</span><br />';
1.22 albertel 296: }
1.1 www 297: } else {
1.37 raeburn 298: $output .= '<span class="LC_error">'.
299: &mt('Please use browser "Back" button and pick a filename').
300: '</span><br />';
301: }
302: return ($output,$returnflag);
303: }
304:
305: sub check_extension {
306: my ($fn,$mode,$source,$target,$action,$dirpath,$url) = @_;
307: my ($result,$returnflag);
308: # Check for bad extension and disallow upload
309: if ($fn=~/\.(\w+)$/ &&
310: (&Apache::loncommon::fileembstyle($1) eq 'hdn')) {
1.49 bisitz 311: $result .= '<p class="LC_warning">'.
312: &mt('File [_1] could not be copied.',
313: '<span class="LC_filename">'.$fn.'</span> ').
314: '<br />'.
315: &mt('The extension on this file is reserved internally by LON-CAPA.').
316: '</p>';
1.37 raeburn 317: } elsif ($fn=~/\.(\w+)$/ &&
318: !defined(&Apache::loncommon::fileembstyle($1))) {
1.49 bisitz 319: $result .= '<p class="LC_warning">'.
320: &mt('File [_1] could not be copied.',
321: '<span class="LC_filename">'.$fn.'</span> ').
322: '<br />'.
323: &mt('The extension on this file is not recognized by LON-CAPA.').
324: '</p>';
1.37 raeburn 325: } elsif (-d $target) {
1.49 bisitz 326: $result .= '<p class="LC_warning">'.
327: &mt('File [_1] could not be copied.',
328: '<span class="LC_filename">'.$fn.'</span>').
329: '<br />'.
330: &mt('The target is an existing directory.').
331: '</p>';
1.37 raeburn 332: } elsif (copy($source,$target)) {
333: chmod(0660, $target); # Set permissions to rw-rw---.
334: if ($mode eq 'testbank' || $mode eq 'imsimport') {
335: $returnflag = 'ok';
1.49 bisitz 336: $result .= '<p class="LC_success">'
337: .&mt('Your file - [_1] - was uploaded successfully.',
338: '<span class="LC_filename">'.$fn.'<span>')
339: .'</p>';
1.37 raeburn 340: } else {
1.49 bisitz 341: $result .= '<p class="LC_success">'
342: .&mt('File copied.')
343: .'</p>';
1.37 raeburn 344: }
345: # Check for embedded objects.
346: my (%allfiles,%codebase);
347: my ($text,$header,$css,$js);
348: if (($mode ne 'imsimport') && ($target =~ /\.(htm|html|shtml)$/i)) {
349: my (%allfiles,%codebase);
350: &Apache::lonnet::extract_embedded_items($target,\%allfiles,\%codebase);
351: if (keys(%allfiles) > 0) {
1.50 raeburn 352: my ($currentpath) = ($url =~ m{^(.+)/[^/]+$});
1.51 raeburn 353: my $state = &embedded_form_elems('upload_embedded',$url,$mode);
354: my ($embedded,$num,$pathchg) =
355: &Apache::loncommon::ask_for_embedded_content($action,$state,\%allfiles,
356: \%codebase,
357: {'error_on_invalid_names' => 1,
358: 'ignore_remote_references' => 1,
359: 'current_path' => $currentpath});
1.50 raeburn 360: if ($embedded) {
1.51 raeburn 361: $result .= '<h3>'.&mt('Reference Warning').'</h3>';
362: if ($num) {
363: $result .= '<p>'.&mt('Completed upload of the file.').' '.&mt('This file contained references to other files.').'</p>'.
364: '<p>'.&mt('Please select the locations from which the referenced files are to be uploaded.').'</p>'.
365: $embedded;
366: if ($mode eq 'testbank') {
367: $returnflag = 'embedded';
368: $result .= '<p>'.&mt('Or [_1]continue[_2] the testbank import without these files.','<a href="javascript:document.testbankForm.submit();">','</a>').'</p>';
369: }
370: } else {
371: $result .= '<p>'.&mt('Completed upload of the file.').'</p>'.$embedded;
372: if ($pathchg) {
373: if ($mode eq 'testbank') {
374: $returnflag = 'embedded';
375: $result .= '<p>'.&mt('Or [_1]continue[_2] the testbank import without modifying the references(s).','<a href="javascript:document.testbankForm.submit();">','</a>').'</p>';
376: }
377: }
378: }
1.37 raeburn 379: }
380: }
381: }
382: if (($mode ne 'imsimport') && ($mode ne 'testbank')) {
1.49 bisitz 383: $result .= '<br /><a href="'.$url.'">'.
384: &mt('View file').'</a>';
1.37 raeburn 385: }
386: } else {
387: $result .= &mt('Failed to copy: [_1].',$!);
388: }
389: if ($mode ne 'imsimport' && $mode ne 'testbank') {
1.49 bisitz 390: $result .= '<br /><a href="'.$dirpath.'">'.
391: &mt('Back to Directory').'</a><br />';
1.37 raeburn 392: }
393: return ($result,$returnflag);
394: }
395:
396: sub phasethree {
397: my ($r,$fn,$uname,$udom,$mode) = @_;
1.55 www 398:
1.51 raeburn 399: my $action = '/adm/upload';
400: if ($mode eq 'testbank') {
401: $action = '/adm/testbank';
402: } elsif ($mode eq 'imsimport') {
403: $action = '/adm/imsimport';
404: }
1.56 raeburn 405: my $url_root = "/priv/$udom/$uname";
406: my $dir_root = $r->dir_config('lonDocRoot').$url_root;
1.51 raeburn 407: my $path = &File::Basename::dirname($fn);
1.58 raeburn 408: $path =~ s{^\Q$url_root\E}{};
1.51 raeburn 409: my $filename = &HTML::Entities::encode($env{'form.filename'},'<>&"');
410: my $state = &embedded_form_elems('modify_orightml',$filename,$mode).
411: '<input type="hidden" name="phase" value="four" />';
412: my ($result,$returnflag) =
413: &Apache::loncommon::upload_embedded($mode,$path,$uname,$udom,
414: $dir_root,$url_root,undef,
415: undef,undef,$state,$action);
416: if ($mode ne 'imsimport' && $mode ne 'testbank') {
1.58 raeburn 417: $result .= '<br /><h3><a href="'.$fn.'">'.
1.51 raeburn 418: &mt('View main file').'</a></h3>'.
419: '<h3><a href="'.$url_root.$path.'">'.
420: &mt('Back to Directory').'</a></h3><br />';
421: }
422: return ($result,$returnflag);
423: }
424:
425: sub embedded_form_elems {
426: my ($action,$filename,$mode) = @_;
427: return <<STATE;
428: <input type="hidden" name="action" value="$action" />
429: <input type="hidden" name="mode" value="$mode" />
430: <input type="hidden" name="filename" value="$filename" />
431: STATE
432: }
433:
434: sub phasefour {
435: my ($r,$fn,$uname,$udom,$mode) = @_;
1.55 www 436:
1.51 raeburn 437: my $action = '/adm/upload';
438: if ($mode eq 'testbank') {
439: $action = '/adm/testbank';
440: } elsif ($mode eq 'imsimport') {
441: $action = '/adm/imsimport';
442: }
1.37 raeburn 443: my $result;
1.56 raeburn 444: my $url_root = "/priv/$udom/$uname";
445: my $dir_root = $r->dir_config('lonDocRoot').$url_root;
1.37 raeburn 446: my $path = &File::Basename::dirname($fn);
1.58 raeburn 447: $path =~ s{^\Q$url_root\E}{};
1.60 raeburn 448: my $outcome =
449: &Apache::loncommon::modify_html_refs($mode,$path,$uname,$udom,$dir_root);
450: $result .= $outcome;
1.37 raeburn 451: if ($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', $r->filename);
475: return HTTP_NOT_FOUND;
1.22 albertel 476: }
477:
1.61 ! raeburn 478: my ($uname,$udom)=&Apache::lonnet::constructaccess($fn);
1.58 raeburn 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
1.59 raeburn 520: my $brcrum = [{'href' => &Apache::loncommon::authorspace($fn),
1.47 bisitz 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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