Annotation of loncom/publisher/lonretrieve.pm, revision 1.31
1.1 www 1: # The LearningOnline Network with CAPA
2: # Handler to retrieve an old version of a file
3: #
1.31 ! albertel 4: # $Id: lonretrieve.pm,v 1.30 2006/04/06 22:15:19 albertel Exp $
1.15 albertel 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: #
28: #
1.16 harris41 29: ###
1.1 www 30:
31: package Apache::lonretrieve;
32:
33: use strict;
34: use Apache::File;
35: use File::Copy;
36: use Apache::Constants qw(:common :http :methods);
1.10 www 37: use Apache::loncacc;
1.16 harris41 38: use Apache::loncommon();
1.23 www 39: use Apache::lonlocal;
1.27 albertel 40: use Apache::lonnet;
1.1 www 41:
1.16 harris41 42: # ------------------------------------ Interface for selecting previous version
1.2 www 43: sub phaseone {
44: my ($r,$fn,$uname,$udom)=@_;
45: my $docroot=$r->dir_config('lonDocRoot');
46:
1.3 www 47: my $urldir='/res/'.$udom.'/'.$uname.$fn;
48: $urldir=~s/\/[^\/]+$/\//;
49:
50: my $resfn=$docroot.'/res/'.$udom.'/'.$uname.$fn;
51: my $resdir=$resfn;
1.2 www 52: $resdir=~s/\/[^\/]+$/\//;
53:
1.31 ! albertel 54: my ($main,$suffix,$is_meta) = &get_file_info($fn);
! 55:
1.6 www 56: if (-e $resfn) {
1.3 www 57: $r->print('<form action=/adm/retrieve method=post>'.
1.12 www 58: '<input type=hidden name=filename value="/~'.$uname.$fn.'">'.
1.3 www 59: '<input type=hidden name=phase value=two>'.
1.23 www 60: '<table border=2><tr><th>'.&mt('Select').'</th><th>'.
61: &mt('Version').'</th>'.
1.31 ! albertel 62: '<th>'.&mt('Published on ...').'</th>');
! 63: if (!$is_meta) {
! 64: $r->print('<th>'.&mt('Metadata').'</th>');
! 65: }
! 66: if ($is_meta
! 67: || &Apache::loncommon::fileembstyle($suffix) eq 'ssi') {
! 68: $r->print('<th>'.&mt('Diffs').'</th>');
! 69: }
! 70: $r->print('</tr>');
! 71:
1.2 www 72: opendir(DIR,$resdir);
1.28 albertel 73: my @files = grep(/^\Q$main\E\.(\d+)\.\Q$suffix\E$/,readdir(DIR));
74: @files = sort {
75: my ($aver) = ($a=~/^\Q$main\E\.(\d+)\.\Q$suffix\E$/);
76: my ($bver) = ($b=~/^\Q$main\E\.(\d+)\.\Q$suffix\E$/);
77: return $aver <=> $bver;
78: } (@files);
79: closedir(DIR);
80:
81: foreach my $filename (@files) {
1.22 albertel 82: if ($filename=~/^\Q$main\E\.(\d+)\.\Q$suffix\E$/) {
1.3 www 83: my $version=$1;
1.26 www 84: my $rmtime=&Apache::lonnet::metadata($resdir.'/'.$filename,'lastrevisiondate');
1.3 www 85: $r->print('<tr><td><input type=radio name=version value="'.
1.26 www 86: $version.'"></td><td>'.&mt('Previously published version').' '.$version.'</td><td>'.
1.31 ! albertel 87: localtime($rmtime).'</td>');
! 88:
! 89: if (!$is_meta) {
! 90: $r->print('<td><a href="'.$urldir.$filename.'.meta" target=cat>'.
! 91: &mt('Metadata Version').' '.$version.'</a></td>');
! 92: }
! 93: if ($is_meta
! 94: || &Apache::loncommon::fileembstyle($suffix) eq 'ssi') {
1.8 www 95: $r->print(
1.31 ! albertel 96: '<td><a target=cat href="/adm/diff?filename=/~'.
1.11 www 97: $uname.$fn.
1.24 albertel 98: '&versiontwo=priv&versionone='.$version.
1.31 ! albertel 99: '">'.&mt('Diffs with Version').' '.$version.
! 100: '</a></td>');
1.8 www 101: }
1.31 ! albertel 102: $r->print('</tr>');
1.2 www 103: }
104: }
105: closedir(DIR);
1.26 www 106: my $rmtime=&Apache::lonnet::metadata($resfn,'lastrevisiondate');
1.3 www 107: $r->print('<tr><td><input type=radio name=version value="new"></td>'.
1.29 albertel 108: '<th>'.&mt('Currently published version').'</th><td>'.localtime($rmtime).
1.31 ! albertel 109: '</td>');
! 110: if (!$is_meta) {
! 111: $r->print('<td><a href="'.$urldir.$main.'.'.$suffix.'.meta" target=cat>'.
! 112: &mt('Metadata current version').'</a></td>');
! 113: }
! 114: if ($is_meta
! 115: || &Apache::loncommon::fileembstyle($suffix) eq 'ssi') {
1.9 www 116: $r->print(
1.31 ! albertel 117: '<td><a target=cat href="/adm/diff?filename=/~'.
1.11 www 118: $uname.$fn.
1.20 albertel 119: '&versiontwo=priv'.
1.31 ! albertel 120: '">'.&mt('Diffs with current Version').'</a></td>');
1.9 www 121: }
1.31 ! albertel 122: $r->print('</tr></table><p>'.
1.23 www 123: '<font size=+1 color=red>'.
124: &mt('Retrieval of an old version will overwrite the file currently in construction space').'</font><p>'.
125: '<input type=submit value="'.&mt('Retrieve version').'"></form>');
1.6 www 126: } else {
1.23 www 127: $r->print('<h3>'.&mt('No previous versions published.').'</h3>');
1.6 www 128: }
1.25 albertel 129: $r->print('<p><a href="/priv/'.$uname.$fn.'">'.&mt('Back to').' '.$fn.
130: '</a></p>');
1.2 www 131: }
1.1 www 132:
1.16 harris41 133: # ---------------------------------- Interface for presenting specified version
1.4 www 134: sub phasetwo {
135: my ($r,$fn,$uname,$udom)=@_;
1.27 albertel 136: if ($env{'form.version'}) {
137: my $version=$env{'form.version'};
1.4 www 138: if ($version eq 'new') {
1.23 www 139: $r->print('<h3>'.&mt('Retrieving current (most recent) version').'</h3>');
1.4 www 140: } else {
1.23 www 141: $r->print('<h3>'.&mt('Retrieving old version').' '.$version.'</h3>');
1.4 www 142: }
1.31 ! albertel 143: my ($main,$suffix,$is_meta) = &get_file_info($fn);
! 144:
1.4 www 145: my $logfile;
146: my $ctarget='/home/'.$uname.'/public_html'.$fn;
1.5 www 147: my $vfn=$fn;
148: if ($version ne 'new') {
1.31 ! albertel 149: $vfn=~s/\.(\Q$suffix\E)$/\.$version\.$1/;
1.5 www 150: }
1.31 ! albertel 151:
1.5 www 152: my $csource=$r->dir_config('lonDocRoot').'/res/'.$udom.'/'.$uname.$vfn;
1.31 ! albertel 153:
! 154: my $logname = $ctarget;
! 155: if ($is_meta) { $logname =~ s/\.meta$//; }
! 156: $logname = $ctarget.'.log';
! 157: unless ($logfile=Apache::File->new('>>'.$logname)) {
1.4 www 158: $r->print(
1.23 www 159: '<font color=red>'.&mt('No write permission to user directory, FAIL').'</font>');
1.4 www 160: }
161: print $logfile
162: "\n\n================= Retrieve ".localtime()." ================\n".
1.5 www 163: "Version: $version\nSource: $csource\nTarget: $ctarget\n";
1.23 www 164: $r->print('<p>'.&mt('Copying file').': ');
1.31 ! albertel 165: if (copy($csource,$ctarget)) {
1.5 www 166: $r->print('ok<p>');
167: print $logfile "Copied sucessfully.\n\n";
168: } else {
169: my $error=$!;
170: $r->print('fail, '.$error.'<p>');
171: print $logfile "Copy failed: $error\n\n";
172: }
173: $r->print('<font size=+2><a href="/priv/'.$uname.$fn.
1.23 www 174: '">'.&mt('Back to').' '.$fn.'</a></font>');
1.4 www 175: } else {
176: $r->print(
1.23 www 177: '<font size=+1 color=red>'.&mt('Please pick a version to retrieve').'</font><p>');
1.4 www 178: &phaseone($r,$fn,$uname,$udom);
179: }
180: }
181:
1.31 ! albertel 182: sub get_file_info {
! 183: my ($fn) = @_;
! 184: my ($main,$suffix) = ($fn=~/\/([^\/]+)\.(\w+)$/);
! 185: my $is_meta=0;
! 186: if ($suffix eq 'meta') {
! 187: $is_meta = 1;
! 188: ($main,$suffix) = ($main=~/(.+)\.(\w+)$/);
! 189: $suffix .= '.meta';
! 190: }
! 191: return ($main,$suffix,$is_meta);
! 192: }
! 193:
1.16 harris41 194: # ---------------------------------------------------------------- Main Handler
1.1 www 195: sub handler {
196:
197: my $r=shift;
198:
199: my $fn;
1.14 www 200:
201:
202: # Get query string for limited number of parameters
203:
1.17 stredwic 204: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.18 www 205: ['filename']);
1.1 www 206:
1.27 albertel 207: if ($env{'form.filename'}) {
208: $fn=$env{'form.filename'};
1.10 www 209: $fn=~s/^http\:\/\/[^\/]+//;
1.1 www 210: } else {
1.27 albertel 211: $r->log_reason($env{'user.name'}.' at '.$env{'user.domain'}.
1.2 www 212: ' unspecified filename for retrieval', $r->filename);
213: return HTTP_NOT_FOUND;
1.1 www 214: }
215:
216: unless ($fn) {
1.27 albertel 217: $r->log_reason($env{'user.name'}.' at '.$env{'user.domain'}.
1.2 www 218: ' trying to retrieve non-existing file', $r->filename);
1.1 www 219: return HTTP_NOT_FOUND;
220: }
221:
222: # ----------------------------------------------------------- Start page output
1.10 www 223: my $uname;
224: my $udom;
1.1 www 225:
1.13 www 226: ($uname,$udom)=
227: &Apache::loncacc::constructaccess($fn,$r->dir_config('lonDefDomain'));
228: unless (($uname) && ($udom)) {
1.10 www 229: $r->log_reason($uname.' at '.$udom.
1.27 albertel 230: ' trying to publish file '.$env{'form.filename'}.
1.10 www 231: ' ('.$fn.') - not authorized',
232: $r->filename);
233: return HTTP_NOT_ACCEPTABLE;
234: }
235:
236: $fn=~s/\/\~(\w+)//;
1.1 www 237:
1.23 www 238: &Apache::loncommon::content_type($r,'text/html');
1.1 www 239: $r->send_http_header;
240:
1.30 albertel 241: $r->print(&Apache::loncommon::start_page('Retrieve Published Resources'));
1.1 www 242:
243:
1.23 www 244: $r->print('<h1>'.&mt('Retrieve previous versions of').' <tt>'.$fn.'</tt></h1>');
1.10 www 245:
1.27 albertel 246: if (($uname ne $env{'user.name'}) || ($udom ne $env{'user.domain'})) {
1.23 www 247: $r->print('<h3><font color=red>'.&mt('Co-Author').': '.$uname.
248: &mt(' at ').$udom.
1.10 www 249: '</font></h3>');
250: }
251:
1.1 www 252:
1.27 albertel 253: if ($env{'form.phase'} eq 'two') {
1.4 www 254: &phasetwo($r,$fn,$uname,$udom);
1.2 www 255: } else {
256: &phaseone($r,$fn,$uname,$udom);
257: }
1.1 www 258:
1.30 albertel 259: $r->print(&Apache::loncommon::end_page());
1.1 www 260: return OK;
261: }
1.7 www 262:
263: 1;
264: __END__
1.16 harris41 265:
266: =head1 NAME
267:
268: Apache::lonretrieve - retrieves an old version of a file
269:
270: =head1 SYNOPSIS
271:
272: Invoked by /etc/httpd/conf/srm.conf:
273:
274: <Location /adm/retrieve>
275: PerlAccessHandler Apache::lonacc
276: SetHandler perl-script
277: PerlHandler Apache::lonretrieve
278: ErrorDocument 403 /adm/login
279: ErrorDocument 404 /adm/notfound.html
280: ErrorDocument 406 /adm/unauthorized.html
281: ErrorDocument 500 /adm/errorhandler
282: </Location>
283:
284: =head1 INTRODUCTION
285:
286: This module retrieves an old published version of a file.
287:
288: This is part of the LearningOnline Network with CAPA project
289: described at http://www.lon-capa.org.
290:
291: =head1 HANDLER SUBROUTINE
292:
293: This routine is called by Apache and mod_perl.
294:
295: =over 4
296:
297: =item *
298:
299: Get query string for limited number of parameters
300:
301: =item *
302:
303: Start page output
304:
305: =item *
306:
307: print phase relevant output
308:
309: =item *
310:
311: (phase one is to select version; phase two retrieves version)
312:
313: =back
314:
315: =head1 OTHER SUBROUTINES
316:
317: =over 4
318:
319: =item *
320:
321: phaseone() : Interface for selecting previous version.
322:
323: =item *
324:
325: phasetwo() : Interface for presenting specified version.
326:
327: =back
328:
329: =cut
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>
![[BACK]](/icons/back.gif){kind=icon}
Return to lonretrieve.pm CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [LON-CAPA] / loncom / publisher