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Diff for /loncom/publisher/lonupload.pm between versions 1.24 and 1.66

version 1.24, 2003/11/08 11:13:50 version 1.66, 2013/12/04 17:29:44
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 # 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 28 Line 27
 #  #
 ###  ###
   
   =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, phasetwo, phasethree or phasefour)
   
   =item *
   
   (phase one is to specify upload file; phase two is to handle conditions
   subsequent to specification--like overwriting an existing file; phase three
   is to handle processing of secondary uploads - of embedded objects in an
   html file).
   
   =back
   
   =head1 OTHER SUBROUTINES
   
   =over
   
   =item phaseone()
   
   Interface for specifying file to upload.
   
   =item phasetwo()
   
   Interface for handling post-conditions about uploading (such
   as overwriting an existing file).
   
   =item phasethree()
   
   Interface for handling secondary uploads of embedded objects
   in an html file.
   
   =item phasefour()
   
   Interface for handling optional renaming of links to embedded
   objects. 
   
   =item upfile_store()
   
   Store contents of uploaded file into temporary space.  Invoked
   by phaseone subroutine.
   
   =item check_extension()
   
   Checks if filename extension is permitted and checks type
    of file - if html file, calls parser to check for embedded objects.
    Invoked by phasetwo subroutine.
   
   =back
   
   =cut
   
 package Apache::lonupload;  package Apache::lonupload;
   
 use strict;  use strict;
Line 35  use Apache::File; Line 125  use Apache::File;
 use File::Copy;  use File::Copy;
 use File::Basename;  use File::Basename;
 use Apache::Constants qw(:common :http :methods);  use Apache::Constants qw(:common :http :methods);
 use Apache::loncacc;  
 use Apache::loncommon();  use Apache::loncommon();
 use Apache::Log();  
 use Apache::lonnet;  use Apache::lonnet;
 use HTML::Entities();  use HTML::Entities();
 use Apache::lonlocal;  use Apache::lonlocal;
   use Apache::lonnet;
   use LONCAPA();
   
 my $DEBUG=0;  my $DEBUG=0;
   
 sub Debug {  sub Debug {
         # Put out the indicated message but only if DEBUG is true.
     # Marshall the parameters.  
     
     my $r       = shift;  
     my $log     = $r->log;  
     my $message = shift;  
     
     # Put out the indicated message butonly if DEBUG is false.  
     
     if ($DEBUG) {      if ($DEBUG) {
  $log->debug($message);   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;
           
     chomp($ENV{'form.upfile'});      chomp($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,$mode,$uname,$udom)=@_;
     $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/^\///;  
  $fn=~s/(\/)+/\//g;      # Check for file to be uploaded
       $env{'form.upfile.filename'}=~s/\\/\//g;
 #    Fn is the full path to the destination filename.      $env{'form.upfile.filename'}=~s/^.*\/([^\/]+)$/$1/;
 #          if (!$env{'form.upfile.filename'}) {
           $r->print('<p class="LC_warning">'.&mt('No upload file specified.').'</p>'.
  &Debug($r, "Filename for upload: $fn");                    &earlyout($fn,$uname,$udom));
  if (($fn) && ($fn!~/\/$/)) {          return;
     $r->print('<form action="/adm/upload" method="post">'.      }
       '<input type="hidden" name="phase" value="two" />'.  
       '<input type="hidden" name="datatoken" value="'.      # Append the name of the uploaded file
       &upfile_store.'" />'.      $fn.=$env{'form.upfile.filename'};
       '<input type="hidden" name="uploaduname" value="'.$uname.      $fn=~s/(\/)+/\//g;
       '" />'.&mt('Store uploaded file as ').  
       "<tt>/priv/$uname/</tt>".      # Check for illegal filename
       '<input type="text" size="50" name="filename" value="'.$fn.      &Debug($r, "Filename for upload: $fn");
       '" /><br />'.      if (!(($fn) && ($fn!~/\/$/))) {
       '<input type="submit" value="'.&mt('Store').'" /></form>');          $r->print('<p class="LC_warning">'.&mt('Illegal filename.').'</p>');
     # Check for bad extension and warn user          return;
     if ($fn=~/\.(\w+)$/ &&       }
  (&Apache::loncommon::fileembstyle($1) eq 'hdn')) {      # Check if quota exceeded
  $r->print('<font color="red">'.&mt('The extension on this file,').      my $filesize = length($env{'form.upfile'});
   ' "'.$1.'"'.&mt(', is reserved internally by LON-CAPA.').      if (!$filesize) {
   ' <br />'.&mt('Please change the extension.').'</font>');          $r->print('<p class="LC_warning">'.
     } elsif($fn=~/\.(\w+)$/ &&                     &mt('Unable to upload [_1]. (size = [_2] bytes)',
     !defined(&Apache::loncommon::fileembstyle($1))) {                        '<span class="LC_filename">'.$env{'form.upfile.filename'}.'</span>',
  $r->print('<font color="red">'.&mt('The extension on this file,').                        $filesize).'<br />'.
   ' "'.$1.'"'.&mt(', is not recognized by LON-CAPA.').                    &mt('Either the file you attempted to upload was empty, or your web browser was unable to read its contents.').'<br />'.
   ' <br />'.&mt('Please change the extension.').                    '</p>'.
   '</font>');                    &earlyout($fn,$uname,$udom));
     }          return;
  } else {      }
     $r->print('<font color="red">'.&mt('Illegal filename.').'</font>');      $filesize = int($filesize/1000); #expressed in kb
  }      my $output = &Apache::loncommon::excess_filesize_warning($uname,$udom,'author',
     } else {                                                               $env{'form.upfile.filename'},$filesize,'upload');
  $r->print('<font color="red">'.&mt('No upload file specified.').'</font>');      if ($output) {
           $r->print($output.&earlyout($fn,$uname,$udom));
           return;
       }
   
   # Split part that I can change from the part that I cannot change
       my ($fn1,$fn2)=($fn=~/^(\/priv\/[^\/]+\/[^\/]+\/)(.*)$/);
       # Display additional options for upload
       # and upload button
       $r->print(
           '<form action="'.$action.'" method="post" name="fileupload">'
          .'<input type="hidden" name="phase" value="two" />'
          .'<input type="hidden" name="datatoken" value="'.&upfile_store.'" />'
       );
       $r->print(
           &Apache::lonhtmlcommon::start_pick_box()
          .&Apache::lonhtmlcommon::row_title(&mt('Save uploaded file as'))
          .'<span class="LC_filename">'.$fn1.'</span>'
          .'<input type="hidden" name="filename1" value="'.$fn1.'" />'
          .'<input type="text" size="50" name="filename2" value="'.$fn2.'" />'
          .&Apache::lonhtmlcommon::row_closure()
          .&Apache::lonhtmlcommon::row_title(&mt('File Type'))
          .'<select name="filetype">'
          .'<option value="standard" selected="selected">'.&mt('Regular file').'</option>'
          .'<option value="testbank">'.&mt('Testbank file').'</option>'
          .'<option value="imsimport">'.&mt('IMS package').'</option>'
          .'</select>'.&Apache::loncommon::help_open_topic("Uploading_File_Options")
          .&Apache::lonhtmlcommon::row_closure(1)
          .&Apache::lonhtmlcommon::end_pick_box()
       );
       $r->print(
           '<p>'
          .'<input type="button" value="'.&mt('Upload').'" onclick="javascript:verifyForm()"/>'
          .'</p>'
          .'</form>'
       );
   
      # Check for bad extension and warn user
       if ($fn=~/\.(\w+)$/ && 
           (&Apache::loncommon::fileembstyle($1) eq 'hdn')) {
                   $r->print('<p class="LC_error">'
                             .&mt('The extension on this file, [_1], is reserved internally by LON-CAPA.',
                                  '<span class="LC_filename">'.$1.'</span>')
                             .' <br />'.&mt('Please change the extension.')
                             .'</p>');
       } elsif($fn=~/\.(\w+)$/ && 
                       !defined(&Apache::loncommon::fileembstyle($1))) {
                   $r->print('<p class="LC_error">'
                            .&mt('The extension on this file, [_1], is not recognized by LON-CAPA.',
                                 '<span class="LC_filename">'.$1.'</span>')
                            .' <br />'.&mt('Please change the extension.')
                            .'</p>');
     }      }
 }  }
   
 sub phasetwo {  sub phasetwo {
     my ($r,$tfn,$uname,$udom)=@_;      my ($r,$fn,$mode)=@_;
     my $fn='/priv/'.$uname.'/'.$tfn;  
       my $output;
       my $action = '/adm/upload';
       my $returnflag = '';
       if ($mode eq 'testbank') {
           $action = '/adm/testbank';
       } elsif ($mode eq 'imsimport') {
           $action = '/adm/imsimport';
       }
     $fn=~s/\/+/\//g;      $fn=~s/\/+/\//g;
     &Debug($r, "Filename is ".$tfn);      if ($fn) {
     if ($tfn) {   my $target= $r->dir_config('lonDocRoot').'/'.$fn;
  &Debug($r, "Filename for tfn = ".$tfn);  
  my $target='/home/'.$uname.'/public_html'.$tfn;  
  &Debug($r, "target -> ".$target);   &Debug($r, "target -> ".$target);
 #     target is the full filesystem path of the destination file.  #     target is the full filesystem path of the destination file.
  my $base = &File::Basename::basename($fn);   my $base = &File::Basename::basename($fn);
  my $path = &File::Basename::dirname($fn);   my $path = &File::Basename::dirname($fn);
  $base    = &HTML::Entities::encode($base);   $base    = &HTML::Entities::encode($base,'<>&"');
  my $url  = $path."/".$base;    my $url  = $path."/".$base; 
  &Debug($r, "URL is now ".$url);   &Debug($r, "URL is now ".$url);
  my $datatoken=$ENV{'form.datatoken'};   my $datatoken=$env{'form.datatoken'};
  if (($fn) && ($datatoken)) {   if (($fn) && ($datatoken)) {
     if ((-e $target) && ($ENV{'form.override'} ne 'Yes')) {              if ($env{'form.cancel'}) {
  $r->print('<form action="/adm/upload" method="post">'.                  my $source=$r->dir_config('lonDaemons').'/tmp/'.$datatoken.'.tmp';
   &mt('File').' <tt>'.$fn.'</tt> '.                  my $dirpath=$path.'/';
   &mt('exists. Overwrite?').' '.                  $dirpath=~s/\/+/\//g;
   '<input type="hidden" name="phase" value="two" />'.                  $output .= '<p class="LC_warning">'.&mt('Upload cancelled.').'</p>'
   '<input type="hidden" name="filename" value="'."$url".'" />'.                            .'<p><a href="'.$dirpath.'">'.
   '<input type="hidden" name="datatoken" value="'.$datatoken.'" />'.                            &mt('Back to Directory').'</a></p>';
   '<input type="submit" name="override" value="'.&mt('Yes').'" /></form>');              } elsif ((-e $target) && (!$env{'form.override'})) {
     } else {                  $output .= '<form action="'.$action.'" method="post">'
                             .'<p class="LC_warning">'
                             .&mt('File [_1] already exists.',
                                  '<span class="LC_filename">'.$fn.'</span>')
                            .'<input type="hidden" name="phase" value="two" />'
                            .'<input type="hidden" name="filename" value="'.$url.'" />'
                            .'<input type="hidden" name="datatoken" value="'.$datatoken.'" />'
                            .'<p>'
                            .'<input type="submit" name="cancel" value="'.&mt('Cancel').'" />'
                            .' <input type="submit" name="override" value="'.&mt('Overwrite').'" />'
                            .'</p>'
                            .'</form>';
               } else {
  my $source=$r->dir_config('lonDaemons').'/tmp/'.$datatoken.'.tmp';   my $source=$r->dir_config('lonDaemons').'/tmp/'.$datatoken.'.tmp';
    my $dirpath=$path.'/';
    $dirpath=~s/\/+/\//g;
  # Check for bad extension and disallow upload   # Check for bad extension and disallow upload
  if ($fn=~/\.(\w+)$/ &&                   my $result;
     (&Apache::loncommon::fileembstyle($1) eq 'hdn')) {                  ($result,$returnflag) = &check_extension($fn,$mode,$source,$target,$action,$dirpath,$url);
     $r->print(&mt('File').' <tt>'.$fn.'</tt> '.                  $output .= $result;
       &mt('could not be copied.').'<br />'.  
       '<font color="red">'.  
       &mt('The extension on this file is reserved internally by LON-CAPA.').  
       '</font>');  
     $r->print('<br /><font size=+2><a href="'.$path.'">'.  
       &mt('Back to Directory').'</a></font>');  
  } elsif ($fn=~/\.(\w+)$/ &&   
  !defined(&Apache::loncommon::fileembstyle($1))) {  
     $r->print(&mt('File').' <tt>'.$fn.'</tt> '.  
       &mt('could not be copied.').'<br />'.  
       '<font color="red">'.  
       &mt('The extension on this file is not recognized by LON-CAPA.').  
       '</font>');  
     $r->print('<br /><font size="+2"><a href="'.$path.'">'.  
       &mt('Back to Directory').'</a></font>');  
  } elsif (-d $target) {  
     $r->print('File <tt>'.$fn.'</tt> could not be copied.<br />'.  
       '<font color="red">'.  
       &mt('The target is an existing directory.').  
       '</font><br />');  
     $r->print('<font size="+2"><a href="'.$path.'">'.  
       &mt('Back to Directory').'</a></font>');  
  } elsif (copy($source,$target)) {  
     chmod(0660, $target); # Set permissions to rw-rw---.  
     $r->print(&mt('File copied.'));  
     $r->print('<br /><font size="+2"><a href="'.$url.'">'.  
       &mt('View file').'</a></font>');  
     $r->print('<br /><font size="+2"><a href="'.$path.'">'.  
       &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 {   } else {
     $r->print('<font size="+1" color="red">'.      $output .= '<span class="LC_error">'.
       &mt('Please use browser "Back" button and pick a filename').        &mt('Please use browser "Back" button and pick a filename').
       '</font><br />');        '</span><br />';
  }   }
     } else {      } else {
  $r->print('<font size=+1 color=red>'.   $output .= '<span class="LC_error">'.
   &mt('Please use browser "Back" button and pick a filename').     &mt('Please use browser "Back" button and pick a filename').
   '</font><br />>');     '</span><br />';
       }
       return ($output,$returnflag);
   }
   
   sub check_extension {
       my ($fn,$mode,$source,$target,$action,$dirpath,$url) = @_;
       my ($result,$returnflag);
       # Check for bad extension and disallow upload
       if ($fn=~/\.(\w+)$/ &&
           (&Apache::loncommon::fileembstyle($1) eq 'hdn')) {
           $result .= '<p class="LC_warning">'.
                      &mt('File [_1] could not be copied.',
                          '<span class="LC_filename">'.$fn.'</span> ').
                      '<br />'.
                      &mt('The extension on this file is reserved internally by LON-CAPA.').
                      '</p>';
       } elsif ($fn=~/\.(\w+)$/ &&
                !defined(&Apache::loncommon::fileembstyle($1))) {
           $result .= '<p class="LC_warning">'.
                      &mt('File [_1] could not be copied.',
                          '<span class="LC_filename">'.$fn.'</span> ').
                      '<br />'.
                      &mt('The extension on this file is not recognized by LON-CAPA.').
                      '</p>';
       } elsif (-d $target) {
           $result .= '<p class="LC_warning">'.
                      &mt('File [_1] could not be copied.',
                          '<span class="LC_filename">'.$fn.'</span>').
                      '<br />'.
                      &mt('The target is an existing directory.').
                      '</p>';
       } elsif (copy($source,$target)) {
           chmod(0660, $target); # Set permissions to rw-rw---.
           if ($mode eq 'testbank' || $mode eq 'imsimport') {
               $returnflag = 'ok';
               $result .= '<p class="LC_success">'
                         .&mt('Your file - [_1] - was uploaded successfully.',
                              '<span class="LC_filename">'.$fn.'<span>')
                         .'</p>';
           } else {
               $result .= '<p class="LC_success">'
                         .&mt('File copied.')  
                         .'</p>';
           }
           # Check for embedded objects.
           my (%allfiles,%codebase);
           my ($text,$header,$css,$js);
           if (($mode ne 'imsimport') && ($target =~ /\.(htm|html|shtml)$/i)) {
               my (%allfiles,%codebase);
               &Apache::lonnet::extract_embedded_items($target,\%allfiles,\%codebase);
               if (keys(%allfiles) > 0) {
                   my ($currentpath) = ($url =~ m{^(.+)/[^/]+$});
                   my $state = &embedded_form_elems('upload_embedded',$url,$mode);
                   my ($embedded,$num,$pathchg) = 
                       &Apache::loncommon::ask_for_embedded_content($action,$state,\%allfiles,
                                                                    \%codebase,
                                                                    {'error_on_invalid_names'   => 1,
                                                                     'ignore_remote_references' => 1,
                                                                     'current_path'             => $currentpath});
                   if ($embedded) {
                       $result .= '<h3>'.&mt('Reference Warning').'</h3>';
                       if ($num) {
                           $result .= '<p>'.&mt('Completed upload of the file.').' '.&mt('This file contained references to other files.').'</p>'.
                                      '<p>'.&mt('Please select the locations from which the referenced files are to be uploaded.').'</p>'.
                                      $embedded;
                           if ($mode eq 'testbank') {
                               $returnflag = 'embedded';
                               $result .=  '<p>'.&mt('Or [_1]continue[_2] the testbank import without these files.','<a href="javascript:document.testbankForm.submit();">','</a>').'</p>';
                           }
                       } else {
                           $result .= '<p>'.&mt('Completed upload of the file.').'</p>'.$embedded;
                           if ($pathchg) {
                               if ($mode eq 'testbank') {
                                   $returnflag = 'embedded';
                                   $result .=  '<p>'.&mt('Or [_1]continue[_2] the testbank import without modifying the reference(s).','<a href="javascript:document.testbankForm.submit();">','</a>').'</p>';
                               }
                           }
                       }
                   }
               }
           }
           if (($mode ne 'imsimport') && ($mode ne 'testbank')) {
               $result .= '<br /><a href="'.$url.'">'.
                           &mt('View file').'</a>';
           }
       } else {
           $result .= &mt('Failed to copy: [_1].',$!);
       }
       if ($mode ne 'imsimport' && $mode ne 'testbank') {
           $result .= '<br /><a href="'.$dirpath.'">'.
                      &mt('Back to Directory').'</a><br />';
       }
       return ($result,$returnflag);
   }
   
   sub phasethree {
       my ($r,$fn,$uname,$udom,$mode) = @_;
   
       my $action = '/adm/upload'; 
       if ($mode eq 'testbank') {
           $action = '/adm/testbank';
       } elsif ($mode eq 'imsimport') {
           $action = '/adm/imsimport';
       }
       my $url_root = "/priv/$udom/$uname";
       my $dir_root = $r->dir_config('lonDocRoot').$url_root;
       my $path = &File::Basename::dirname($fn);
       $path =~ s{^\Q$url_root\E}{};
       my $filename = &HTML::Entities::encode($env{'form.filename'},'<>&"');
       my $state = &embedded_form_elems('modify_orightml',$filename,$mode).
                   '<input type="hidden" name="phase" value="four" />';
       my ($result,$returnflag) = 
           &Apache::loncommon::upload_embedded($mode,$path,$uname,$udom,
                                               $dir_root,$url_root,undef,
                                               undef,undef,$state,$action);
       if ($mode ne 'imsimport' && $mode ne 'testbank') {
           $result .= '<br /><h3><a href="'.$fn.'">'.
                     &mt('View main file').'</a></h3>'.
                     '<h3><a href="'.$url_root.$path.'">'.
                     &mt('Back to Directory').'</a></h3><br />';
     }      }
       return ($result,$returnflag);
   }
   
   sub embedded_form_elems {
       my ($action,$filename,$mode) = @_;
       return <<STATE;
       <input type="hidden" name="action" value="$action" />
       <input type="hidden" name="mode" value="$mode" />
       <input type="hidden" name="filename" value="$filename" />
   STATE
   }
   
   sub phasefour {
       my ($r,$fn,$uname,$udom,$mode) = @_;
   
       my $action = '/adm/upload';
       if ($mode eq 'testbank') {
           $action = '/adm/testbank';
       } elsif ($mode eq 'imsimport') {
           $action = '/adm/imsimport';
       }
       my $result;
       my $url_root = "/priv/$udom/$uname";
       my $dir_root = $r->dir_config('lonDocRoot').$url_root;
       my $path = &File::Basename::dirname($fn);
       $path =~ s{^\Q$url_root\E}{};
       my $outcome = 
           &Apache::loncommon::modify_html_refs($mode,$path,$uname,$udom,$dir_root);
       $result .= $outcome;
       if ($mode ne 'imsimport' && $mode ne 'testbank') {
           $result .= '<br /><h3><a href="'.$fn.'">'.
                     &mt('View main file').'</a></h3>'.
                     '<h3><a href="'.$url_root.$path.'">'.
                     &mt('Back to Directory').'</a></h3><br />';
       }
       return $result;
   }
   
   sub earlyout {
       my ($fn,$uname,$udom) = @_;
       if ($fn =~ m{^(/priv/$udom/$uname(?:.*)/)[^/]*}) {
           return &Apache::lonhtmlcommon::actionbox(
                  ['<a href="'.$1.'">'.&mt('Return to Directory').'</a>']);
       }
       return;
 }  }
   
 # ---------------------------------------------------------------- Main Handler  # ---------------------------------------------------------------- Main Handler
 sub handler {  sub handler {
   
     my $r=shift;      my $r=shift;
       my $javascript = '';
       my $fn=$env{'form.filename'};
   
     my $uname;      if ($env{'form.filename1'}) {
     my $udom;         $fn=$env{'form.filename1'}.$env{'form.filename2'};
 #  
 # phase two: re-attach user  
 #  
     if ($ENV{'form.uploaduname'}) {  
  $ENV{'form.filename'}='/priv/'.$ENV{'form.uploaduname'}.'/'.  
     $ENV{'form.filename'};  
     }      }
 #      $fn=~s/\/+/\//g;
   
     ($uname,$udom)=      unless ($fn) {
  &Apache::loncacc::constructaccess($ENV{'form.filename'},          $r->log_reason($env{'user.name'}.' at '.$env{'user.domain'}.
   $r->dir_config('lonDefDomain'));                         ' unspecified filename for upload', $r->filename);
     unless (($uname) && ($udom)) {          return HTTP_NOT_FOUND;
  $r->log_reason($uname.' at '.$udom.  
        ' trying to publish file '.$ENV{'form.filename'}.  
        ' - not authorized',   
        $r->filename);   
  return HTTP_NOT_ACCEPTABLE;  
     }      }
       
     my $fn;      my ($uname,$udom)=&Apache::lonnet::constructaccess($fn);
     if ($ENV{'form.filename'}) {  
  $fn=$ENV{'form.filename'};      unless (($uname) && ($udom)) {
  $fn=~s/^http\:\/\/[^\/]+\///;          $r->log_reason($uname.' at '.$udom.
  $fn=~s/^\///;                         ' trying to publish file '.$env{'form.filename'}.
  $fn=~s/(\~|priv\/)(\w+)//;                         ' - not authorized',
  $fn=~s/\/+/\//g;                         $r->filename);
     } else {          return HTTP_NOT_ACCEPTABLE;
  $r->log_reason($ENV{'user.name'}.' at '.$ENV{'user.domain'}.  
        ' unspecified filename for upload', $r->filename);   
  return HTTP_NOT_FOUND;  
     }      }
   
 # ----------------------------------------------------------- Start page output  # ----------------------------------------------------------- Start page output
   
   
     &Apache::loncommon::content_type($r,'text/html');      &Apache::loncommon::content_type($r,'text/html');
     $r->send_http_header;      $r->send_http_header;
   
     $r->print('<html><head><title>LON-CAPA Construction Space</title></head>');      unless ($env{'form.phase'} eq 'two') {
           $javascript = <<"ENDJS";
   <script type="text/javascript">
   // <![CDATA[
   function verifyForm() {
       var mode = document.fileupload.filetype.options[document.fileupload.filetype.selectedIndex].value
       if (mode == "testbank") {
           document.fileupload.action = "/adm/testbank";
       }
       if (mode == "imsimport") {
           document.fileupload.action = "/adm/imsimport";
       }
       if (mode == "standard") {
           document.fileupload.action = "/adm/upload";
       }
       document.fileupload.submit();
   }
   // ]]>
   </script>
   ENDJS
       }
   
     $r->print(&Apache::loncommon::bodytag('Upload file to Construction Space'));      my $londocroot = $r->dir_config('lonDocRoot');
       my $trailfile = $fn;
       $trailfile =~ s{^/(priv/)}{$londocroot/$1};
   
       # Breadcrumbs
       my $brcrum = [{'href' => &Apache::loncommon::authorspace($fn),
                      'text' => 'Authoring Space'},
                     {'href' => '/adm/upload',
                      'text' => 'Upload file to Authoring Space'}];
       $r->print(&Apache::loncommon::start_page('Upload file to Authoring Space',
                                                $javascript,
                                                {'bread_crumbs' => $brcrum,})
                .&Apache::loncommon::head_subbox(
                   &Apache::loncommon::CSTR_pageheader($trailfile))
       );
       
     if (($uname ne $ENV{'user.name'}) || ($udom ne $ENV{'user.domain'})) {      if (($uname ne $env{'user.name'}) || ($udom ne $env{'user.domain'})) {
  $r->print('<h3><font color=red>'.&mt('Co-Author').': '.$uname.          $r->print('<p class="LC_info">'
   &mt(' at ').$udom.'</font></h3>');                   .&mt('Co-Author [_1]',$uname.':'.$udom)
                    .'</p>'
           );
     }      }
       if ($env{'form.phase'} eq 'four') {
     if ($ENV{'form.phase'} eq 'two') {          my $output = &phasefour($r,$fn,$uname,$udom,'author');
  &phasetwo($r,$fn,$uname,$udom);          $r->print($output);
       } elsif ($env{'form.phase'} eq 'three') {
           my ($output,$rtnflag) = &phasethree($r,$fn,$uname,$udom,'author');
           $r->print($output);
       } elsif ($env{'form.phase'} eq 'two') {
    my ($output,$returnflag) = &phasetwo($r,$fn);
           $r->print($output);
     } else {      } else {
  &phaseone($r,$fn,$uname,$udom);   &phaseone($r,$fn,undef,$uname,$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.1.24  
changed lines
  Added in v.1.66

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