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Diff for /loncom/publisher/lonupload.pm between versions 1.9 and 1.33

version 1.9, 2001/12/04 18:13:06 version 1.33, 2006/07/05 22:23:09
Line 1 Line 1
   
 # The LearningOnline Network with CAPA  # The LearningOnline Network with CAPA
 # Handler to upload files into construction space  # Handler to upload files into construction space
 #  #
Line 25 Line 26
 #  #
 # http://www.lon-capa.org/  # http://www.lon-capa.org/
 #  #
 # (Handler to retrieve an old version of a file  ###
 #  
 # (Publication Handler  
 #   
 # (TeX Content Handler  
 #  
 # 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  
 # 03/23 Guy Albertelli  
 # 03/24,03/29 Gerd Kortemeyer)  
 #  
 # 03/31,04/03 Gerd Kortemeyer)  
 #  
 # 04/05,04/09,05/25,06/23,06/24,08/22 Gerd Kortemeyer  
 # 11/29 Matthew Hall  
   
 package Apache::lonupload;  package Apache::lonupload;
   
 use strict;  use strict;
 use Apache::File;  use Apache::File;
 use File::Copy;  use File::Copy;
   use File::Basename;
 use Apache::Constants qw(:common :http :methods);  use Apache::Constants qw(:common :http :methods);
 use Apache::loncacc;  use Apache::loncacc;
   use Apache::loncommon();
 use Apache::lonnet;  use Apache::lonnet;
   use HTML::Entities();
   use Apache::lonlocal;
   use Apache::lonnet;
   
   my $DEBUG=0;
   
   sub Debug {
       # Put out the indicated message but only if DEBUG is true.
       if ($DEBUG) {
    my ($r,$message) = @_;
    $r->log_reason($message);
       }
   }
   
 sub upfile_store {  sub upfile_store {
     my $r=shift;      my $r=shift;
   
     my $fname=$ENV{'form.upfile.filename'};      my $fname=$env{'form.upfile.filename'};
     $fname=~s/\W//g;      $fname=~s/\W//g;
           
     chop($ENV{'form.upfile'});      chomp($env{'form.upfile'});
       
     my $datatoken=$ENV{'user.name'}.'_'.$ENV{'user.domain'}.      my $datatoken=$env{'user.name'}.'_'.$env{'user.domain'}.
   '_upload_'.$fname.'_'.time.'_'.$$;    '_upload_'.$fname.'_'.time.'_'.$$;
     {      {
        my $fh=Apache::File->new('>'.$r->dir_config('lonDaemons').         my $fh=Apache::File->new('>'.$r->dir_config('lonDaemons').
                                    '/tmp/'.$datatoken.'.tmp');                                     '/tmp/'.$datatoken.'.tmp');
        print $fh $ENV{'form.upfile'};         print $fh $env{'form.upfile'};
     }      }
     return $datatoken;      return $datatoken;
 }  }
   
   
 sub phaseone {  sub phaseone {
    my ($r,$fn,$uname,$udom)=@_;      my ($r,$fn,$uname,$udom,$mode)=@_;
    $ENV{'form.upfile.filename'}=~s/\\/\//g;      my $action = '/adm/upload';
    $ENV{'form.upfile.filename'}=~s/^.*\/([^\/]+)$/$1/;      if ($mode eq 'testbank') {
    if ($ENV{'form.upfile.filename'}) {          $action = '/adm/testbank';
     $fn=~s/\/[^\/]+$//;      } elsif ($mode eq 'imsimport') {
     $fn=~s/([^\/])$/$1\//;          $action = '/adm/imsimport';
     $fn.=$ENV{'form.upfile.filename'};      }
     $fn=~s/^\///;      $env{'form.upfile.filename'}=~s/\\/\//g;
     $fn=~s/(\/)+/\//g;      $env{'form.upfile.filename'}=~s/^.*\/([^\/]+)$/$1/;
       if ($env{'form.upfile.filename'}) {
     if (($fn) && ($fn!~/\/$/)) {   $fn=~s/\/[^\/]+$//;
       $r->print(   $fn=~s/([^\/])$/$1\//;
  '<form action=/adm/upload method=post>'.   $fn.=$env{'form.upfile.filename'};
  '<input type=hidden name=phase value=two>'.   $fn=~s/^\///;
  '<input type=hidden name=datatoken value="'.&upfile_store.'">'.   $fn=~s/(\/)+/\//g;
  'Store uploaded file as '.  
  '<input type=text size=50 name=filename value="/priv/'.  #    Fn is the full path to the destination filename.
   $uname.'/'.$fn.'"><br>'.  #    
  '<input type=submit value="Store"></form>');  
       # Check for bad extension and warn user   &Debug($r, "Filename for upload: $fn");
       if ($fn=~/\.(\w+)$/ &&    if (($fn) && ($fn!~/\/$/)) {
   (&Apache::lonnet::fileembstyle($1) eq 'hdn')) {      $r->print('<form action="'.$action.'" method="post" name="fileupload">'.
   $r->print(        '<input type="hidden" name="phase" value="two" />'.
  '<font color=red>'.        '<input type="hidden" name="datatoken" value="'.
  'The extension on this file, "'.$1.        &upfile_store.'" />'.
  '", is reserved internally by LON-CAPA. <br \>'.        '<input type="hidden" name="uploaduname" value="'.$uname.
  'Please change the extension.'.        '" />'.&mt('Store uploaded file as ').
  '</font>');                        "<span class='LC_filename'>/priv/$uname/</span>".
       } elsif($fn=~/\.(\w+)$/ &&                         '<input type="text" size="50" name="filename" value="'.$fn.
       !defined(&Apache::lonnet::fileembstyle($1))) {                        '" /><br />'.
   $r->print(        '<br />'.&mt('Choose file type:').'
  '<font color=red>'.  <select name="filetype">
  'The extension on this file, "'.$1.   <option value="standard" selected>'.&mt('Regular file').'
  '", is not recognized by LON-CAPA. <br \>'.   <option value="testbank">'.&mt('Testbank file').'
  'Please change the extension.'.   <option value="imsimport">'.&mt('IMS package').'
  '</font>');  </select>'.&Apache::loncommon::help_open_topic("Uploading_File_Options").'
       }  <br />
   } else {  <br />
       $r->print('<font color=red>Illegal filename.</font>');  ');
   }              $r->print('<input type="button" value="'.&mt('Store').'" onClick="javascript:verifyForm()"/></form>');
  } else {      # Check for bad extension and warn user
      $r->print('<font color=red>No upload file specified.</font>');      if ($fn=~/\.(\w+)$/ && 
  }   (&Apache::loncommon::fileembstyle($1) eq 'hdn')) {
    $r->print('<span class="LC_error">'.&mt('The extension on this file,').
     ' "'.$1.'"'.&mt(', is reserved internally by LON-CAPA.').
     ' <br />'.&mt('Please change the extension.').'</span>');
       } elsif($fn=~/\.(\w+)$/ && 
       !defined(&Apache::loncommon::fileembstyle($1))) {
    $r->print('<span class="LC_error">'.&mt('The extension on this file,').
     ' "'.$1.'"'.&mt(', is not recognized by LON-CAPA.').
     ' <br />'.&mt('Please change the extension.').
     '</span>');
       }
    } else {
       $r->print('<span class="LC_error">'.&mt('Illegal filename.').'</span>');
    }
       } else {
    $r->print('<span class="LC_error">'.&mt('No upload file specified.').'</span>');
       }
 }  }
   
 sub phasetwo {  sub phasetwo {
    my ($r,$fn,$uname,$udom)=@_;      my ($r,$tfn,$uname,$udom,$mode)=@_;
    if ($fn=~/^\/priv\/$uname\//) {       my $action = '/adm/upload';
     my $tfn=$fn;      my $returnflag = '';
     $tfn=~s/^\/(\~|priv)\/(\w+)//;      if ($mode eq 'testbank') {
     my $target='/home/'.$uname.'/public_html'.$tfn;          $action = '/adm/testbank';
     my $datatoken=$ENV{'form.datatoken'};      } elsif ($mode eq 'imsimport') {
     if (($fn) && ($datatoken)) {          $action = '/adm/imsimport';
  if ((-e $target) && ($ENV{'form.override'} ne 'Yes')) {      }
            $r->print(      my $fn='/priv/'.$uname.'/'.$tfn;
  '<form action=/adm/upload method=post>'.      $fn=~s/\/+/\//g;
  'File <tt>'.$fn.'</tt> exists. Overwrite? '.      &Debug($r, "Filename is ".$tfn);
  '<input type=hidden name=phase value=two>'.      if ($tfn) {
  '<input type=hidden name=filename value="'.$fn.'">'.   &Debug($r, "Filename for tfn = ".$tfn);
  '<input type=hidden name=datatoken value="'.$datatoken.'">'.   my $target='/home/'.$uname.'/public_html'.$tfn;
  '<input type=submit name=override value="Yes"></form>');   &Debug($r, "target -> ".$target);
        } else {  #     target is the full filesystem path of the destination file.
            my $source=$r->dir_config('lonDaemons').   my $base = &File::Basename::basename($fn);
                              '/tmp/'.$datatoken.'.tmp';   my $path = &File::Basename::dirname($fn);
            # Check for bad extension and disallow upload   $base    = &HTML::Entities::encode($base,'<>&"');
    if ($fn=~/\.(\w+)$/ &&    my $url  = $path."/".$base; 
        (&Apache::lonnet::fileembstyle($1) eq 'hdn')) {   &Debug($r, "URL is now ".$url);
        $r->print(   my $datatoken=$env{'form.datatoken'};
  'File <tt>'.$fn.'</tt> could not be copied.<br />'.   if (($fn) && ($datatoken)) {
  '<font color=red>'.      if ((-e $target) && ($env{'form.override'} ne 'Yes')) {
  'The extension on this file is reserved internally by LON-CAPA.'.   $r->print('<form action="'.$action.'" method="post">'.
  '</font>');    &mt('File').' <span class="LC_filename">'.$fn.'</span> '.
    } elsif ($fn=~/\.(\w+)$/ &&     &mt('exists. Overwrite?').' '.
     !defined(&Apache::lonnet::fileembstyle($1))) {    '<input type="hidden" name="phase" value="two" />'.
        $r->print(    '<input type="hidden" name="filename" value="'."$url".'" />'.
  'File <tt>'.$fn.'</tt> could not be copied.<br />'.    '<input type="hidden" name="datatoken" value="'.$datatoken.'" />'.
  '<font color=red>'.    '<input type="submit" name="override" value="'.&mt('Yes').'" /></form>');
  'The extension on this file is not recognized by LON-CAPA.'.      } else {
  '</font>');   my $source=$r->dir_config('lonDaemons').'/tmp/'.$datatoken.'.tmp';
    } elsif (copy($source,$target)) {   my $dirpath=$path.'/';
       $r->print('File copied.');   $dirpath=~s/\/+/\//g;
               $r->print('<p><font size=+2><a href="'.$fn.   # Check for bad extension and disallow upload
                         '">View file</a></font>');   if ($fn=~/\.(\w+)$/ && 
    } else {      (&Apache::loncommon::fileembstyle($1) eq 'hdn')) {
               $r->print('Failed to copy: '.$!);      $r->print(&mt('File').' <span class="LC_filename">'.$fn.'</span> '.
    }        &mt('could not be copied.').'<br />'.
        }        '<span class="LC_error">'.
         &mt('The extension on this file is reserved internally by LON-CAPA.').
         '</span>');
       $r->print('<br /><font size=+2><a href="'.$dirpath.'">'.
         &mt('Back to Directory').'</a></font>');
    } elsif ($fn=~/\.(\w+)$/ && 
    !defined(&Apache::loncommon::fileembstyle($1))) {
       $r->print(&mt('File').' <span class="LC_filename">'.$fn.'</span> '.
         &mt('could not be copied.').'<br />'.
         '<span class="LC_error">'.
         &mt('The extension on this file is not recognized by LON-CAPA.').
         '</span>');
       $r->print('<br /><font size="+2"><a href="'.$dirpath.'">'.
         &mt('Back to Directory').'</a></font>');
    } elsif (-d $target) {
       $r->print('File <span class="LC_filename">'.$fn.'</span> could not be copied.<br />'.
         '<span class="LC_error">'.
         &mt('The target is an existing directory.').
         '</span><br />');
       $r->print('<font size="+2"><a href="'.$dirpath.'">'.
         &mt('Back to Directory').'</a></font>');
    } elsif (copy($source,$target)) {
       chmod(0660, $target); # Set permissions to rw-rw---.
                       if ($mode eq 'testbank' || $mode eq 'imsimport') {
                           $r->print(&mt("Your file - $fn - was uploaded successfully")."<br /><br />");
                           $returnflag = 'ok';
                       } else {
                           $r->print(&mt('File copied.'));
           $r->print('<br /><font size="+2"><a href="'.$url.'">'.
         &mt('View file').'</a></font>');
           $r->print('<br /><font size="+2"><a href="'.$dirpath.'">'.
         &mt('Back to Directory').'</a></font><br />');
                       }
    } else {
       $r->print('Failed to copy: '.$!);
       $r->print('<br /><font size="+2"><a href="'.$path.'">'.
         &mt('Back to Directory').'</a></font>');
    }
       }
    } else {
       $r->print('<span class="LC_error">'.
         &mt('Please use browser "Back" button and pick a filename').
         '</span><br />');
    }
     } else {      } else {
        $r->print(   $r->print('<span class="LC_error">'.
    '<font size=+1 color=red>Please pick a filename</font><p>');    &mt('Please use browser "Back" button and pick a filename').
        &phaseone($r,$fn,$uname,$udom);    '</span><br />>');
     }      }
   } else {      return $returnflag;
     $r->print(  
    '<font size=+1 color=red>Please pick a filename</font><p>');  
     &phaseone($r,$fn,$uname,$udom);  
   }  
 }  }
   
   # ---------------------------------------------------------------- Main Handler
 sub handler {  sub handler {
   
   my $r=shift;      my $r=shift;
   
   my $uname;      my $uname;
   my $udom;      my $udom;
       my $javascript = '';
   #
   # phase two: re-attach user
   #
       if ($env{'form.uploaduname'}) {
    $env{'form.filename'}='/priv/'.$env{'form.uploaduname'}.'/'.
       $env{'form.filename'};
       }
   
   ($uname,$udom)=      unless ($env{'form.phase'} eq 'two') {
     &Apache::loncacc::constructaccess(   my %body_layout = ('rightmargin'  => "0",
  $ENV{'form.filename'},$r->dir_config('lonDefDomain'));     'leftmargin'   => "0",
   unless (($uname) && ($udom)) {     'marginwidth'  => "0",
      $r->log_reason($uname.' at '.$udom.     'topmargin'    => "0",
          ' trying to publish file '.$ENV{'form.filename'}.     'marginheight' => "0");
          ' - not authorized',    my $start_page = 
          $r->filename);       &Apache::loncommon::start_page('Importing a Testbank file into LON-CAPA',
      return HTTP_NOT_ACCEPTABLE;     undef,
   }     {'only_body'   => 1,
       'add_entries' => \%body_layout,
   my $fn;      'js_ready'    => 1,});
    my $end_page = 
   if ($ENV{'form.filename'}) {      &Apache::loncommon::end_page({'js_ready' => 1,});
       $fn=$ENV{'form.filename'};  
       $fn=~s/^http\:\/\/[^\/]+\/(\~|priv\/)(\w+)//;          $javascript = qq|
   } else {  function verifyForm() {
      $r->log_reason($ENV{'user.name'}.' at '.$ENV{'user.domain'}.      var mode = document.fileupload.filetype.options[document.fileupload.filetype.selectedIndex].value
          ' unspecified filename for upload', $r->filename);       if (mode == "testbank") {
      return HTTP_NOT_FOUND;          document.fileupload.action = "/adm/testbank";
   }      }
       if (mode == "imsimport") {
           document.fileupload.action = "/adm/imsimport";
       }
       if (mode == "standard") {
           document.fileupload.action = "/adm/upload";
       }
       document.fileupload.submit();
   }
    |;
       }
       ($uname,$udom)=
    &Apache::loncacc::constructaccess($env{'form.filename'},
     $r->dir_config('lonDefDomain'));
       unless (($uname) && ($udom)) {
    $r->log_reason($uname.' at '.$udom.
          ' trying to publish file '.$env{'form.filename'}.
          ' - not authorized', 
          $r->filename); 
    return HTTP_NOT_ACCEPTABLE;
       }
       
       my $fn;
       if ($env{'form.filename'}) {
    $fn=$env{'form.filename'};
    $fn=~s/^http\:\/\/[^\/]+\///;
    $fn=~s/^\///;
    $fn=~s/(\~|priv\/)(\w+)//;
    $fn=~s/\/+/\//g;
       } else {
    $r->log_reason($env{'user.name'}.' at '.$env{'user.domain'}.
          ' unspecified filename for upload', $r->filename); 
    return HTTP_NOT_FOUND;
       }
   
 # ----------------------------------------------------------- Start page output  # ----------------------------------------------------------- Start page output
   
   
   $r->content_type('text/html');      &Apache::loncommon::content_type($r,'text/html');
   $r->send_http_header;      $r->send_http_header;
   
   $r->print('<html><head><title>LON-CAPA Construction Space</title></head>');  
   
   $r->print(     $javascript = "<script type=\"text/javascript\">\n//<!--\n".
    '<body bgcolor="#FFFFFF"><img align=right src=/adm/lonIcons/lonlogos.gif>');   $javascript."\n// --></script>\n";
   
       $r->print(&Apache::loncommon::start_page('Upload file to Construction Space',
        $javascript));
       
   $r->print('<h1>Upload file to Construction Space</h1>');      if (($uname ne $env{'user.name'}) || ($udom ne $env{'user.domain'})) {
      $r->print('<h3><font color=red>'.&mt('Co-Author').': '.$uname.
   if (($uname ne $ENV{'user.name'}) || ($udom ne $ENV{'user.domain'})) {    &mt(' at ').$udom.'</font></h3>');
           $r->print('<h3><font color=red>Co-Author: '.$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);
   } else {      } else {
       &phaseone($r,$fn,$uname,$udom);   &phaseone($r,$fn,$uname,$udom);
   }      }
   
   $r->print('</body></html>');      $r->print(&Apache::loncommon::end_page());
   return OK;        return OK;  
 }  }
   
 1;  1;
 __END__  __END__
   
   =head1 NAME
   
   Apache::lonupload - upload files into construction space
   
   =head1 SYNOPSIS
   
   Invoked by /etc/httpd/conf/srm.conf:
   
    <Location /adm/upload>
    PerlAccessHandler       Apache::lonacc
    SetHandler perl-script
    PerlHandler Apache::lonupload
    ErrorDocument     403 /adm/login
    ErrorDocument     404 /adm/notfound.html
    ErrorDocument     406 /adm/unauthorized.html
    ErrorDocument  500 /adm/errorhandler
    </Location>
   
   =head1 INTRODUCTION
   
   This module uploads a file sitting on a client computer into 
   library server construction space.
   
   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 *
   
   Initialize variables
   
   =item *
   
   Start page output
   
   =item *
   
   output relevant interface phase (phaseone or phasetwo)
   
   =item *
   
   (phase one is to specify upload file; phase two is to handle conditions
   subsequent to specification--like overwriting an existing file)
   
   =back
   
   =head1 OTHER SUBROUTINES
   
   =over 4
   
   =item *
   
   phaseone() : Interface for specifying file to upload.
   
   =item *
   
   phasetwo() : Interface for handling post-conditions about uploading (such
   as overwriting an existing file).
   
   =item *
   
   upfile_store() : Store contents of uploaded file into temporary space.  Invoked
   by phaseone subroutine.
   
   =back
   
   =cut
Removed from v.1.9  
changed lines
  Added in v.1.33

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