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Diff for /loncom/publisher/lonretrieve.pm between versions 1.5 and 1.18

version 1.5, 2001/04/04 03:59:15 version 1.18, 2002/05/30 14:08:42
Line 1 Line 1
 # The LearningOnline Network with CAPA  # The LearningOnline Network with CAPA
 # Handler to retrieve an old version of a file  # Handler to retrieve an old version of a file
 #  #
   # $Id$
   #
   # Copyright Michigan State University Board of Trustees
   #
   # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
   #
   # LON-CAPA is free software; you can redistribute it and/or modify
   # it under the terms of the GNU General Public License as published by
   # the Free Software Foundation; either version 2 of the License, or
   # (at your option) any later version.
   #
   # LON-CAPA is distributed in the hope that it will be useful,
   # but WITHOUT ANY WARRANTY; without even the implied warranty of
   # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   # GNU General Public License for more details.
   #
   # You should have received a copy of the GNU General Public License
   # along with LON-CAPA; if not, write to the Free Software
   # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
   #
   # /home/httpd/html/adm/gpl.txt
   #
   # http://www.lon-capa.org/
   #
   #
 # (Publication Handler  # (Publication Handler
 #   # 
 # (TeX Content Handler  # (TeX Content Handler
 #  #
   # YEAR=2000
 # 05/29/00,05/30,10/11 Gerd Kortemeyer)  # 05/29/00,05/30,10/11 Gerd Kortemeyer)
 #  #
 # 11/28,11/29,11/30,12/01,12/02,12/04,12/23 Gerd Kortemeyer  # 11/28,11/29,11/30,12/01,12/02,12/04,12/23 Gerd Kortemeyer
   # YEAR=2001
 # 03/23 Guy Albertelli  # 03/23 Guy Albertelli
 # 03/24,03/29 Gerd Kortemeyer)  # 03/24,03/29 Gerd Kortemeyer)
 #  #
 # 03/31,04/03 Gerd Kortemeyer  # 03/31,04/03,05/02,05/09,06/23,08/20 Gerd Kortemeyer
   # 12/16 Scott Harrison
   #
   ###
   
 package Apache::lonretrieve;  package Apache::lonretrieve;
   
Line 19  use strict; Line 49  use strict;
 use Apache::File;  use Apache::File;
 use File::Copy;  use File::Copy;
 use Apache::Constants qw(:common :http :methods);  use Apache::Constants qw(:common :http :methods);
   use Apache::loncacc;
   use Apache::loncommon();
   
   # ------------------------------------ Interface for selecting previous version
 sub phaseone {  sub phaseone {
     my ($r,$fn,$uname,$udom)=@_;      my ($r,$fn,$uname,$udom)=@_;
     my $docroot=$r->dir_config('lonDocRoot');      my $docroot=$r->dir_config('lonDocRoot');
Line 31  sub phaseone { Line 64  sub phaseone {
     my $resdir=$resfn;      my $resdir=$resfn;
     $resdir=~s/\/[^\/]+$/\//;      $resdir=~s/\/[^\/]+$/\//;
   
     $fn=~/^\/(.+)\.(\w+)$/;      $fn=~/\/([^\/]+)\.(\w+)$/;
     my $main=$1;      my $main=$1;
     my $suffix=$2;      my $suffix=$2;
     
       if (-e $resfn) {  
     $r->print('<form action=/adm/retrieve method=post>'.      $r->print('<form action=/adm/retrieve method=post>'.
       '<input type=hidden name=filename value="'.$fn.'">'.        '<input type=hidden name=filename value="/~'.$uname.$fn.'">'.
               '<input type=hidden name=phase value=two>'.                '<input type=hidden name=phase value=two>'.
               '<table border=2><tr><th>Select</th><th>Version</th>'.                '<table border=2><tr><th>Select</th><th>Version</th>'.
               '<th>Became this version on ...</th>'.                '<th>Became this version on ...</th>'.
Line 54  sub phaseone { Line 88  sub phaseone {
                      $version.'"></td><th>'.$version.'</th><td>'.                       $version.'"></td><th>'.$version.'</th><td>'.
                      localtime($rmtime).'</td><td>'.                       localtime($rmtime).'</td><td>'.
                      '<a href="'.$urldir.$filename.'.meta" target=cat>'.                       '<a href="'.$urldir.$filename.'.meta" target=cat>'.
                      'Metadata Version '.$version.'</a></td></tr>');                       'Metadata Version '.$version.'</a>');
              if (&Apache::loncommon::fileembstyle($suffix) eq 'ssi') {
                  $r->print(
                       '&nbsp;&nbsp;<a target=cat href="/adm/diff?filename=/~'.
                           $uname.$fn.
                           '&versionone=priv&versiontwo='.$version.
                           '">Diffs with Version '.$version.'</a>');
              }
              $r->print('</a></td></tr>');
         }          }
     }      }
     closedir(DIR);      closedir(DIR);
Line 65  sub phaseone { Line 107  sub phaseone {
     $r->print('<tr><td><input type=radio name=version value="new"></td>'.      $r->print('<tr><td><input type=radio name=version value="new"></td>'.
               '<th>Current</th><td>'.localtime($rmtime).                '<th>Current</th><td>'.localtime($rmtime).
            '</td><td><a href="'.$urldir.$main.'.'.$suffix.'.meta" target=cat>'.             '</td><td><a href="'.$urldir.$main.'.'.$suffix.'.meta" target=cat>'.
               'Metadata current version</a></td></tr></table><p>'.                'Metadata current version</a>');           
              if (&Apache::loncommon::fileembstyle($suffix) eq 'ssi') {
                  $r->print(
                       '&nbsp;&nbsp;<a target=cat href="/adm/diff?filename=/~'.
                           $uname.$fn.
                           '&versionone=priv'.
                           '">Diffs with current Version</a>');
              }
              $r->print('</td></tr></table><p>'.
            '<font size=+1 color=red>Retrieval of an old version will '.             '<font size=+1 color=red>Retrieval of an old version will '.
            'overwrite the file currently in construction space</font><p>'.             'overwrite the file currently in construction space</font><p>'.
            '<input type=submit value="Retrieve version"></form>');             '<input type=submit value="Retrieve version"></form>');
   } else {
       $r->print('<h3>No previous versions published.</h3>');
   }
 }  }
   
   # ---------------------------------- Interface for presenting specified version
 sub phasetwo {  sub phasetwo {
     my ($r,$fn,$uname,$udom)=@_;      my ($r,$fn,$uname,$udom)=@_;
     if ($ENV{'form.version'}) {      if ($ENV{'form.version'}) {
Line 112  sub phasetwo { Line 166  sub phasetwo {
     }      }
 }  }
   
   # ---------------------------------------------------------------- Main Handler
 sub handler {  sub handler {
   
   my $r=shift;    my $r=shift;
   
   my $fn;    my $fn;
   
   
   # Get query string for limited number of parameters
   
     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
     ['filename']);
   
   if ($ENV{'form.filename'}) {    if ($ENV{'form.filename'}) {
       $fn=$ENV{'form.filename'};        $fn=$ENV{'form.filename'};
       $fn=~s/^http\:\/\/[^\/]+\/\~(\w+)//;        $fn=~s/^http\:\/\/[^\/]+//;
   } else {    } else {
      $r->log_reason($ENV{'user.name'}.' at '.$ENV{'user.domain'}.       $r->log_reason($ENV{'user.name'}.' at '.$ENV{'user.domain'}.
          ' unspecified filename for retrieval', $r->filename);            ' unspecified filename for retrieval', $r->filename); 
Line 134  sub handler { Line 195  sub handler {
   }     } 
   
 # ----------------------------------------------------------- Start page output  # ----------------------------------------------------------- Start page output
     my $uname;
     my $udom;
   
   my $uname=$ENV{'user.name'};    ($uname,$udom)=
   my $udom=$ENV{'user.domain'};      &Apache::loncacc::constructaccess($fn,$r->dir_config('lonDefDomain'));
     unless (($uname) && ($udom)) {
        $r->log_reason($uname.' at '.$udom.
            ' trying to publish file '.$ENV{'form.filename'}.
            ' ('.$fn.') - not authorized', 
            $r->filename); 
        return HTTP_NOT_ACCEPTABLE;
     }
   
     $fn=~s/\/\~(\w+)//;
   
   $r->content_type('text/html');    $r->content_type('text/html');
   $r->send_http_header;    $r->send_http_header;
Line 148  sub handler { Line 220  sub handler {
   
       
   $r->print('<h1>Retrieve previous versions of <tt>'.$fn.'</tt></h1>');    $r->print('<h1>Retrieve previous versions of <tt>'.$fn.'</tt></h1>');
     
     if (($uname ne $ENV{'user.name'}) || ($udom ne $ENV{'user.domain'})) {
             $r->print('<h3><font color=red>Co-Author: '.$uname.' at '.$udom.
                  '</font></h3>');
     }
   
   
   if ($ENV{'form.phase'} eq 'two') {    if ($ENV{'form.phase'} eq 'two') {
       &phasetwo($r,$fn,$uname,$udom);        &phasetwo($r,$fn,$uname,$udom);
Line 158  sub handler { Line 236  sub handler {
   $r->print('</body></html>');    $r->print('</body></html>');
   return OK;      return OK;  
 }  }
   
   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
Removed from v.1.5  
changed lines
  Added in v.1.18

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