--- loncom/publisher/lonretrieve.pm	2006/09/13 21:43:26	1.31
+++ loncom/publisher/lonretrieve.pm	2012/10/29 17:38:55	1.49
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # Handler to retrieve an old version of a file
 #
-# $Id: lonretrieve.pm,v 1.31 2006/09/13 21:43:26 albertel Exp $
+# $Id: lonretrieve.pm,v 1.49 2012/10/29 17:38:55 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -28,106 +28,183 @@
 #
 ###
 
+=head1 NAME
+
+Apache::lonretrieve - retrieves an old version of a file
+
+=head1 SYNOPSIS
+
+Invoked by /etc/httpd/conf/srm.conf:
+
+ <Location /adm/retrieve>
+ PerlAccessHandler       Apache::lonacc
+ SetHandler perl-script
+ PerlHandler Apache::lonretrieve
+ ErrorDocument     403 /adm/login
+ ErrorDocument     404 /adm/notfound.html
+ ErrorDocument     406 /adm/unauthorized.html
+ ErrorDocument	  500 /adm/errorhandler
+ </Location>
+
+=head1 INTRODUCTION
+
+This module retrieves an old published version of a file.
+
+This is part of the LearningOnline Network with CAPA project
+described at http://www.lon-capa.org.
+
+=head1 HANDLER SUBROUTINE
+
+This routine is called by Apache and mod_perl.
+
+=over 4
+
+=item *
+
+Get query string for limited number of parameters
+
+=item *
+
+Start page output
+
+=item *
+
+print phase relevant output
+
+=item *
+
+(phase one is to select version; phase two retrieves version)
+
+=back
+
+=head1 OTHER SUBROUTINES
+
+=over 4
+
+=item *
+
+phaseone() : Interface for selecting previous version.
+
+=item *
+
+phasetwo() : Interface for presenting specified version.
+
+=back
+
+=cut
+
 package Apache::lonretrieve;
 
 use strict;
 use Apache::File;
 use File::Copy;
 use Apache::Constants qw(:common :http :methods);
-use Apache::loncacc;
 use Apache::loncommon();
 use Apache::lonlocal;
 use Apache::lonnet;
+use LONCAPA();
 
 # ------------------------------------ Interface for selecting previous version
 sub phaseone {
     my ($r,$fn,$uname,$udom)=@_;
-    my $docroot=$r->dir_config('lonDocRoot');
 
-    my $urldir='/res/'.$udom.'/'.$uname.$fn;
-    $urldir=~s/\/[^\/]+$/\//;
+    my $urldir = "/res/$udom/$uname".$fn;
+    my $resfn = $r->dir_config('lonDocRoot').$urldir;
 
-    my $resfn=$docroot.'/res/'.$udom.'/'.$uname.$fn;
-    my $resdir=$resfn;
-    $resdir=~s/\/[^\/]+$/\//;
+    $urldir =~ s{[^/]+$}{};
+    my $resdir = $r->dir_config('lonDocRoot').$urldir;
 
     my ($main,$suffix,$is_meta) = &get_file_info($fn);
     
     if (-e $resfn) {  
-    $r->print('<form action=/adm/retrieve method=post>'.
-	      '<input type=hidden name=filename value="/~'.$uname.$fn.'">'.
-              '<input type=hidden name=phase value=two>'.
-              '<table border=2><tr><th>'.&mt('Select').'</th><th>'.
-	      &mt('Version').'</th>'.
-              '<th>'.&mt('Published on ...').'</th>');
-    if (!$is_meta) {
-	$r->print('<th>'.&mt('Metadata').'</th>');
-    }
-    if ($is_meta
-	|| &Apache::loncommon::fileembstyle($suffix) eq 'ssi') {
-	$r->print('<th>'.&mt('Diffs').'</th>');
-    }
-    $r->print('</tr>');
-    
-    opendir(DIR,$resdir);
-    my @files = grep(/^\Q$main\E\.(\d+)\.\Q$suffix\E$/,readdir(DIR));
-    @files = sort {
-	my ($aver) = ($a=~/^\Q$main\E\.(\d+)\.\Q$suffix\E$/);
-	my ($bver) = ($b=~/^\Q$main\E\.(\d+)\.\Q$suffix\E$/);
-	return $aver <=> $bver;
-    } (@files);
-    closedir(DIR);
-
-    foreach my $filename (@files) {
-        if ($filename=~/^\Q$main\E\.(\d+)\.\Q$suffix\E$/) {
-	   my $version=$1;
-           my $rmtime=&Apache::lonnet::metadata($resdir.'/'.$filename,'lastrevisiondate');
-           $r->print('<tr><td><input type=radio name=version value="'.
-                     $version.'"></td><td>'.&mt('Previously published version').' '.$version.'</td><td>'.
-                     localtime($rmtime).'</td>');
-		     
-	   if (!$is_meta) {
-	       $r->print('<td><a href="'.$urldir.$filename.'.meta" target=cat>'.
-			 &mt('Metadata Version').' '.$version.'</a></td>');
-	   }
-           if ($is_meta
-	       || &Apache::loncommon::fileembstyle($suffix) eq 'ssi') {
-               $r->print(
-                    '<td><a target=cat href="/adm/diff?filename=/~'.
-                        $uname.$fn.
-                        '&versiontwo=priv&versionone='.$version.
-			 '">'.&mt('Diffs with Version').' '.$version.
-			 '</a></td>');
-           }
-           $r->print('</tr>');
-        }
-    }
-    closedir(DIR);
-    my $rmtime=&Apache::lonnet::metadata($resfn,'lastrevisiondate');
-    $r->print('<tr><td><input type=radio name=version value="new"></td>'.
-              '<th>'.&mt('Currently published version').'</th><td>'.localtime($rmtime).
-           '</td>');
-    if (!$is_meta) {
-	$r->print('<td><a href="'.$urldir.$main.'.'.$suffix.'.meta" target=cat>'.
-		  &mt('Metadata current version').'</a></td>');           
+	$r->print('<form action="/adm/retrieve?inhibitmenu=yes" method="post">'.
+		  '<input type="hidden" name="filename" value="/priv/'.$udom.'/'.$uname.$fn.'" />'.
+		  '<input type="hidden" name="phase" value="two" />'.
+		  &Apache::loncommon::start_data_table().
+		  &Apache::loncommon::start_data_table_header_row().
+		  '<th>'.&mt('Select').'</th>'.
+		  '<th>'.&mt('Version').'</th>'.
+		  '<th>'.&mt('Published on ...').'</th>');
+	if (!$is_meta) {
+	    $r->print('<th>'.&mt('Metadata').'</th>');
+	}
+	if ($is_meta
+	    || &Apache::loncommon::fileembstyle($suffix) eq 'ssi') {
+	    $r->print('<th>'.&mt('Diffs').'</th>');
+	}
+	$r->print(&Apache::loncommon::end_data_table_header_row());
+	
+	opendir(DIR,$resdir);
+	my @files = grep(/^\Q$main\E\.(\d+)\.\Q$suffix\E$/,readdir(DIR));
+	@files = sort {
+	    my ($aver) = ($a=~/^\Q$main\E\.(\d+)\.\Q$suffix\E$/);
+	    my ($bver) = ($b=~/^\Q$main\E\.(\d+)\.\Q$suffix\E$/);
+	    return $aver <=> $bver;
+	} (@files);
+	closedir(DIR);
+	
+	foreach my $filename (@files) {
+	    if ($filename=~/^\Q$main\E\.(\d+)\.\Q$suffix\E$/) {
+		my $version=$1;
+		my $rmtime=&Apache::lonnet::metadata($resdir.'/'.$filename,'lastrevisiondate');
+		$r->print(&Apache::loncommon::start_data_table_row().
+			  '<td><input type="radio" name="version" value="'.
+			  $version.'" /></td><td>'.&mt('Previously published version').' '.$version.'</td>'.
+              '<td>'.&Apache::lonlocal::locallocaltime($rmtime).'</td>');
+		
+		if (!$is_meta) {
+		    $r->print('<td>'.
+                              &Apache::loncommon::modal_link($urldir.$filename.'.meta',
+			      &mt('Metadata Version [_1]',$version),550,450).'</td>');
+		}
+		if ($is_meta
+		    || &Apache::loncommon::fileembstyle($suffix) eq 'ssi') {
+		    $r->print('<td>'.
+                              &Apache::loncommon::modal_link(
+                               '/adm/diff?filename=/priv/'.$udom,'/'.$uname.$fn.
+			      '&amp;versiontwo=priv&amp;versionone='.$version,
+			       &mt('Diffs with Version [_1]',$version),550,450).
+			      '</td>');
+		}
+		$r->print(&Apache::loncommon::end_data_table_row());
+	    }
+	}
+	closedir(DIR);
+	my $rmtime=&Apache::lonnet::metadata($resfn,'lastrevisiondate');
+	$r->print(&Apache::loncommon::start_data_table_row().
+		  '<td><input type="radio" name="version" value="new" /></td>'.
+		  '<td><b>'.&mt('Currently published version').'</b></td>'.
+          '<td>'.&Apache::lonlocal::locallocaltime($rmtime).'</td>'
+    );
+	if (!$is_meta) {
+	    $r->print('<td>',
+                      &Apache::loncommon::modal_link($urldir.$main.'.'.$suffix.'.meta',
+		      &mt('Metadata current version'),550,450).'</td>');           
+	}
+	if ($is_meta 
+	    || &Apache::loncommon::fileembstyle($suffix) eq 'ssi') {
+	    $r->print('<td>'.
+                      &Apache::loncommon::modal_link(
+                       '/adm/diff?filename=/priv/'.
+		      $udom.'/'.$uname.$fn.
+		      '&amp;versiontwo=priv',
+		      &mt('Diffs with current Version'),550,450).
+                      '</td>');
+	}
+	$r->print(&Apache::loncommon::end_data_table_row().
+		  &Apache::loncommon::end_data_table().
+		  '<p>'.'<span class="LC_warning">'.
+		  &mt('Retrieval of an old version will overwrite the file currently in construction space.').'</span></p>');
+	if (!$is_meta) {
+	    $r->print('<p>'.'<span class="LC_warning">'.
+		      &mt('This will only retrieve the resource. If you want to retrieve the metadata, you will need to do that separately.').
+		      '</span></p>');
+	}
+	$r->print('<input type="submit" value="'.&mt('Retrieve selected Version').'" /></form>');
+    } else {
+	$r->print('<p class="LC_warning">'.&mt('No previous versions published.').'</p>');
     }
-           if ($is_meta 
-	       || &Apache::loncommon::fileembstyle($suffix) eq 'ssi') {
-               $r->print(
-                    '<td><a target=cat href="/adm/diff?filename=/~'.
-                        $uname.$fn.
-                        '&versiontwo=priv'.
-                        '">'.&mt('Diffs with current Version').'</a></td>');
-           }
-           $r->print('</tr></table><p>'.
-           '<font size=+1 color=red>'.
-&mt('Retrieval of an old version will overwrite the file currently in construction space').'</font><p>'.
-           '<input type=submit value="'.&mt('Retrieve version').'"></form>');
-} else {
-    $r->print('<h3>'.&mt('No previous versions published.').'</h3>');
-}
-    $r->print('<p><a href="/priv/'.$uname.$fn.'">'.&mt('Back to').' '.$fn.
-	      '</a></p>'); 
+
 }
 
 # ---------------------------------- Interface for presenting specified version
@@ -143,38 +220,41 @@ sub phasetwo {
 	my ($main,$suffix,$is_meta) = &get_file_info($fn);
 
         my $logfile;
-        my $ctarget='/home/'.$uname.'/public_html'.$fn;
+        my $ctarget=$r->dir_config('lonDocRoot')."/priv/$udom/$uname".$fn;
         my $vfn=$fn;
         if ($version ne 'new') {
 	    $vfn=~s/\.(\Q$suffix\E)$/\.$version\.$1/;
         }
 
-        my $csource=$r->dir_config('lonDocRoot').'/res/'.$udom.'/'.$uname.$vfn;
+        my $csource=$r->dir_config('lonDocRoot')."/res/$udom/$uname".$vfn;
 
 	my $logname = $ctarget;
 	if ($is_meta) { $logname =~ s/\.meta$//; }
 	$logname = $ctarget.'.log';
         unless ($logfile=Apache::File->new('>>'.$logname)) {
-	  $r->print(
-         '<font color=red>'.&mt('No write permission to user directory, FAIL').'</font>');
+          $r->print('<span class="LC_error">'
+                   .&mt('No write permission to user directory, FAIL')
+                   .'</span>');
         }
         print $logfile 
 "\n\n================= Retrieve ".localtime()." ================\n".
 "Version: $version\nSource: $csource\nTarget: $ctarget\n";
         $r->print('<p>'.&mt('Copying file').': ');
 	if (copy($csource,$ctarget)) {
-	    $r->print('ok<p>');
+	    $r->print('<span class="LC_success">'
+                     .&mt('ok')
+                     .'</span>');
             print $logfile "Copied sucessfully.\n\n";
+            $r->print(&Apache::lonhtmlcommon::scripttag('parent.location.reload();'));
         } else {
             my $error=$!;
-	    $r->print('fail, '.$error.'<p>');
+	    $r->print('<span class="LC_error">'
+                     .&mt('Copy failed: [_1]',$error)
+                     .'</span>');
             print $logfile "Copy failed: $error\n\n";
         }
-        $r->print('<font size=+2><a href="/priv/'.$uname.$fn.
-                  '">'.&mt('Back to').' '.$fn.'</a></font>'); 
     } else {
-       $r->print(
-   '<font size=+1 color=red>'.&mt('Please pick a version to retrieve').'</font><p>');
+       $r->print('<p class="LC_info">'.&mt('Please pick a version to retrieve:').'</p>');
        &phaseone($r,$fn,$uname,$udom);
     }
 }
@@ -206,7 +286,7 @@ sub handler {
 
   if ($env{'form.filename'}) {
       $fn=$env{'form.filename'};
-      $fn=~s/^http\:\/\/[^\/]+//;
+      $fn =~ s{^https?\://[^/]+}{};
   } else {
      $r->log_reason($env{'user.name'}.' at '.$env{'user.domain'}.
          ' unspecified filename for retrieval', $r->filename); 
@@ -223,9 +303,8 @@ sub handler {
   my $uname;
   my $udom;
 
-  ($uname,$udom)=
-    &Apache::loncacc::constructaccess($fn,$r->dir_config('lonDefDomain'));
-  unless (($uname) && ($udom)) {
+  ($uname,$udom) = &Apache::lonnet::constructaccess($fn);
+  unless (($uname ne '') && ($udom ne '')) {
      $r->log_reason($uname.' at '.$udom.
          ' trying to publish file '.$env{'form.filename'}.
          ' ('.$fn.') - not authorized', 
@@ -233,20 +312,43 @@ sub handler {
      return HTTP_NOT_ACCEPTABLE;
   }
 
-  $fn=~s/\/\~(\w+)//;
-
   &Apache::loncommon::content_type($r,'text/html');
   $r->send_http_header;
 
-  $r->print(&Apache::loncommon::start_page('Retrieve Published Resources'));
-
-  
-  $r->print('<h1>'.&mt('Retrieve previous versions of').' <tt>'.$fn.'</tt></h1>');
+    # Breadcrumbs
+    &Apache::lonhtmlcommon::clear_breadcrumbs();
+    &Apache::lonhtmlcommon::add_breadcrumb({
+        'text'  => 'Construction Space',
+        'href'  => &Apache::loncommon::authorspace($fn),
+    });
+    &Apache::lonhtmlcommon::add_breadcrumb({
+        'text'  => 'Retrieve previous version',
+        'href'  => '',
+    });
+
+    my $londocroot = $r->dir_config('lonDocRoot');
+    my $trailfile = $fn;
+    $trailfile =~ s{^/(priv/)}{$londocroot/$1};
+
+  $r->print(&Apache::loncommon::start_page('Retrieve Published Resources')
+           .&Apache::lonhtmlcommon::breadcrumbs()
+           .&Apache::loncommon::head_subbox(
+                &Apache::loncommon::CSTR_pageheader($trailfile))
+    );
+
+  $fn=~s{/priv/$LONCAPA::domain_re/$LONCAPA::username_re}{};
+
+  $r->print('<p>'
+           .&mt('Retrieve previous versions of [_1]'
+                   ,'<span class="LC_filename">'.$fn.'</span>')
+           .'</p>');
   
   if (($uname ne $env{'user.name'}) || ($udom ne $env{'user.domain'})) {
-          $r->print('<h3><font color=red>'.&mt('Co-Author').': '.$uname.
-		    &mt(' at ').$udom.
-               '</font></h3>');
+          $r->print('<p><span class="LC_info">'
+                   .&mt('Co-Author [_1]'
+                       ,&Apache::loncommon::plainname($uname,$udom)
+                       .' ('.$uname.':'.$udom.')')
+                   .'</span></p>');
   }
 
 
@@ -263,67 +365,4 @@ sub handler {
 1;
 __END__
 
-=head1 NAME
-
-Apache::lonretrieve - retrieves an old version of a file
-
-=head1 SYNOPSIS
 
-Invoked by /etc/httpd/conf/srm.conf:
-
- <Location /adm/retrieve>
- PerlAccessHandler       Apache::lonacc
- SetHandler perl-script
- PerlHandler Apache::lonretrieve
- ErrorDocument     403 /adm/login
- ErrorDocument     404 /adm/notfound.html
- ErrorDocument     406 /adm/unauthorized.html
- ErrorDocument	  500 /adm/errorhandler
- </Location>
-
-=head1 INTRODUCTION
-
-This module retrieves an old published version of a file.
-
-This is part of the LearningOnline Network with CAPA project
-described at http://www.lon-capa.org.
-
-=head1 HANDLER SUBROUTINE
-
-This routine is called by Apache and mod_perl.
-
-=over 4
-
-=item *
-
-Get query string for limited number of parameters
-
-=item *
-
-Start page output
-
-=item *
-
-print phase relevant output
-
-=item *
-
-(phase one is to select version; phase two retrieves version)
-
-=back
-
-=head1 OTHER SUBROUTINES
-
-=over 4
-
-=item *
-
-phaseone() : Interface for selecting previous version.
-
-=item *
-
-phasetwo() : Interface for presenting specified version.
-
-=back
-
-=cut