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Diff for /loncom/publisher/lonupload.pm between versions 1.12 and 1.43

version 1.12, 2002/08/08 02:30:39 version 1.43, 2008/12/19 03:57:24
Line 26 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  
 #  
 # YEAR=2000  
 # 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  
 # YEAR=2001  
 # 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  
 # 12/16 Scott Harrison  
 #  
 ###  ###
   
 package Apache::lonupload;  
   
 use strict;  
 use Apache::File;  
 use File::Copy;  
 use Apache::Constants qw(:common :http :methods);  
 use Apache::loncacc;  
 use Apache::loncommon();  
 use Apache::Log();  
   
 my $DEBUG=0;  
   
 sub Debug {  
     
   # 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) {  
     $log->debug($message);  
   }  
 }  
   
 sub upfile_store {  
     my $r=shift;  
   
     my $fname=$ENV{'form.upfile.filename'};  
     $fname=~s/\W//g;  
       
     chop($ENV{'form.upfile'});  
     
     my $datatoken=$ENV{'user.name'}.'_'.$ENV{'user.domain'}.  
   '_upload_'.$fname.'_'.time.'_'.$$;  
     {  
        my $fh=Apache::File->new('>'.$r->dir_config('lonDaemons').  
                                    '/tmp/'.$datatoken.'.tmp');  
        print $fh $ENV{'form.upfile'};  
     }  
     return $datatoken;  
 }  
   
   
 sub phaseone {  
    my ($r,$fn,$uname,$udom)=@_;  
    $ENV{'form.upfile.filename'}=~s/\\/\//g;  
    $ENV{'form.upfile.filename'}=~s/^.*\/([^\/]+)$/$1/;  
    if ($ENV{'form.upfile.filename'}) {  
     $fn=~s/\/[^\/]+$//;  
     $fn=~s/([^\/])$/$1\//;  
     $fn.=$ENV{'form.upfile.filename'};  
     $fn=~s/^\///;  
     $fn=~s/(\/)+/\//g;  
     $fn=~s/%20/ /g;  
     &Debug($r, "Filename for upload: $fn");  
     if (($fn) && ($fn!~/\/$/)) {  
       $r->print(  
  '<form action=/adm/upload method=post>'.  
  '<input type=hidden name=phase value=two>'.  
  '<input type=hidden name=datatoken value="'.&upfile_store.'">'.  
  'Store uploaded file as '.  
  '<input type=text size=50 name=filename value="/priv/'.  
   $uname.'/'.$fn.'"><br>'.  
  '<input type=submit value="Store"></form>');  
       # Check for bad extension and warn user  
       if ($fn=~/\.(\w+)$/ &&   
   (&Apache::loncommon::fileembstyle($1) eq 'hdn')) {  
   $r->print(  
  '<font color=red>'.  
  'The extension on this file, "'.$1.  
  '", is reserved internally by LON-CAPA. <br \>'.  
  'Please change the extension.'.  
  '</font>');  
       } elsif($fn=~/\.(\w+)$/ &&   
       !defined(&Apache::loncommon::fileembstyle($1))) {  
   $r->print(  
  '<font color=red>'.  
  'The extension on this file, "'.$1.  
  '", is not recognized by LON-CAPA. <br \>'.  
  'Please change the extension.'.  
  '</font>');  
       }  
   } else {  
       $r->print('<font color=red>Illegal filename.</font>');  
   }  
  } else {  
      $r->print('<font color=red>No upload file specified.</font>');  
  }  
 }  
   
 sub phasetwo {  
    my ($r,$fn,$uname,$udom)=@_;  
    if ($fn=~/^\/priv\/$uname\//) {   
     my $tfn=$fn;  
     $tfn=~s/^\/(\~|priv)\/(\w+)//;  
     my $target='/home/'.$uname.'/public_html'.$tfn;  
     my $datatoken=$ENV{'form.datatoken'};  
     if (($fn) && ($datatoken)) {  
  if ((-e $target) && ($ENV{'form.override'} ne 'Yes')) {  
            $r->print(  
  '<form action=/adm/upload method=post>'.  
  'File <tt>'.$fn.'</tt> exists. Overwrite? '.  
  '<input type=hidden name=phase value=two>'.  
  '<input type=hidden name=filename value="'.$fn.'">'.  
  '<input type=hidden name=datatoken value="'.$datatoken.'">'.  
  '<input type=submit name=override value="Yes"></form>');  
        } else {  
            my $source=$r->dir_config('lonDaemons').  
                              '/tmp/'.$datatoken.'.tmp';  
            # Check for bad extension and disallow upload  
    if ($fn=~/\.(\w+)$/ &&   
        (&Apache::loncommon::fileembstyle($1) eq 'hdn')) {  
        $r->print(  
  'File <tt>'.$fn.'</tt> could not be copied.<br />'.  
  '<font color=red>'.  
  'The extension on this file is reserved internally by LON-CAPA.'.  
  '</font>');  
    } elsif ($fn=~/\.(\w+)$/ &&   
     !defined(&Apache::loncommon::fileembstyle($1))) {  
        $r->print(  
  'File <tt>'.$fn.'</tt> could not be copied.<br />'.  
  '<font color=red>'.  
  'The extension on this file is not recognized by LON-CAPA.'.  
  '</font>');  
    } elsif (copy($source,$target)) {  
        chmod(0660, $target); # Set permissions to rw-rw---.  
       $r->print('File copied.');  
               $r->print('<p><font size=+2><a href="'.$fn.  
                         '">View file</a></font>');  
    } else {  
               $r->print('Failed to copy: '.$!);  
    }  
        }  
     } else {  
        $r->print(  
    '<font size=+1 color=red>Please pick a filename</font><p>');  
        &phaseone($r,$fn,$uname,$udom);  
     }  
   } else {  
     $r->print(  
    '<font size=+1 color=red>Please pick a filename</font><p>');  
     &phaseone($r,$fn,$uname,$udom);  
   }  
 }  
   
 # ---------------------------------------------------------------- Main Handler  
 sub handler {  
   
   my $r=shift;  
   
   my $uname;  
   my $udom;  
   
   ($uname,$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\:\/\/[^\/]+\/(\~|priv\/)(\w+)//;  
   } else {  
      $r->log_reason($ENV{'user.name'}.' at '.$ENV{'user.domain'}.  
          ' unspecified filename for upload', $r->filename);   
      return HTTP_NOT_FOUND;  
   }  
   
 # ----------------------------------------------------------- Start page output  
   
   
   $r->content_type('text/html');  
   $r->send_http_header;  
   
   $r->print('<html><head><title>LON-CAPA Construction Space</title></head>');  
   
   $r->print(  
    '<body bgcolor="#FFFFFF"><img align=right src=/adm/lonIcons/lonlogos.gif>');  
   
     
   $r->print('<h1>Upload file to Construction Space</h1>');  
     
   if (($uname ne $ENV{'user.name'}) || ($udom ne $ENV{'user.domain'})) {  
           $r->print('<h3><font color=red>Co-Author: '.$uname.' at '.$udom.  
                '</font></h3>');  
   }  
   
   
   if ($ENV{'form.phase'} eq 'two') {  
       &phasetwo($r,$fn,$uname,$udom);  
   } else {  
       &phaseone($r,$fn,$uname,$udom);  
   }  
   
   $r->print('</body></html>');  
   return OK;    
 }  
   
 1;  
 __END__  
   
 =head1 NAME  =head1 NAME
   
 Apache::lonupload - upload files into construction space  Apache::lonupload - upload files into construction space
Line 301  Start page output Line 70  Start page output
   
 =item *  =item *
   
 output relevant interface phase (phaseone or phasetwo)  output relevant interface phase (phaseone or phasetwo or phasethree)
   
 =item *  =item *
   
 (phase one is to specify upload file; phase two is to handle conditions  (phase one is to specify upload file; phase two is to handle conditions
 subsequent to specification--like overwriting an existing file)  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  =back
   
 =head1 OTHER SUBROUTINES  =head1 OTHER SUBROUTINES
   
 =over 4  =over
   
 =item *  =item phaseone()
   
 phaseone() : Interface for specifying file to upload.  Interface for specifying file to upload.
   
 =item *  =item phasetwo()
   
 phasetwo() : Interface for handling post-conditions about uploading (such  Interface for handling post-conditions about uploading (such
 as overwriting an existing file).  as overwriting an existing file).
   
 =item *  =item phasethree()
   
   Interface for handling secondary uploads of embedded objects
   in an html file.
   
   =item upfile_store()
   
 upfile_store() : Store contents of uploaded file into temporary space.  Invoked  Store contents of uploaded file into temporary space.  Invoked
 by phaseone subroutine.  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  =back
   
 =cut  =cut
   
   package Apache::lonupload;
   
   use strict;
   use Apache::File;
   use File::Copy;
   use File::Basename;
   use Apache::Constants qw(:common :http :methods);
   use Apache::loncacc;
   use Apache::loncommon();
   use Apache::lonnet;
   use HTML::Entities();
   use Apache::lonlocal;
   use Apache::lonnet;
   use LONCAPA();
   
   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 {
       my $r=shift;
   
       my $fname=$env{'form.upfile.filename'};
       $fname=~s/\W//g;
       
       chomp($env{'form.upfile'});
     
       my $datatoken=$env{'user.name'}.'_'.$env{'user.domain'}.
     '_upload_'.$fname.'_'.time.'_'.$$;
       {
          my $fh=Apache::File->new('>'.$r->dir_config('lonDaemons').
                                      '/tmp/'.$datatoken.'.tmp');
          print $fh $env{'form.upfile'};
       }
       return $datatoken;
   }
   
   sub phaseone {
       my ($r,$fn,$uname,$udom,$mode)=@_;
       my $action = '/adm/upload';
       if ($mode eq 'testbank') {
           $action = '/adm/testbank';
       } elsif ($mode eq 'imsimport') {
           $action = '/adm/imsimport';
       }
       $env{'form.upfile.filename'}=~s/\\/\//g;
       $env{'form.upfile.filename'}=~s/^.*\/([^\/]+)$/$1/;
       if ($env{'form.upfile.filename'}) {
    $fn=~s/\/[^\/]+$//;
    $fn=~s/([^\/])$/$1\//;
    $fn.=$env{'form.upfile.filename'};
    $fn=~s/^\///;
    $fn=~s/(\/)+/\//g;
   
   #    Fn is the full path to the destination filename.
   #    
   
    &Debug($r, "Filename for upload: $fn");
    if (($fn) && ($fn!~/\/$/)) {
       $r->print('<form action="'.$action.'" method="post" name="fileupload">'.
         '<input type="hidden" name="phase" value="two" />'.
         '<input type="hidden" name="datatoken" value="'.
         &upfile_store.'" />'.
         '<input type="hidden" name="uploaduname" value="'.$uname.
         '" />'.&mt('Save uploaded file as [_1]',
                         "<span class='LC_filename'>/priv/$uname/</span>".
                         '<input type="text" size="50" name="filename" value="'.$fn.
                         '" />').
                         '<br />'.
         '<br />'.&mt('Choose file type:').'
   <select name="filetype">
    <option value="standard" selected>'.&mt('Regular file').'
    <option value="testbank">'.&mt('Testbank file').'
    <option value="imsimport">'.&mt('IMS package').'
   </select>'.&Apache::loncommon::help_open_topic("Uploading_File_Options").'
   <br />
   <br />
   ');
               $r->print('<input type="button" value="'.&mt('Save').'" onClick="javascript:verifyForm()"/></form>');
       # Check for bad extension and warn user
       if ($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.','"'.$1.'"')
                             .' <br />'.&mt('Please change the extension.')
                             .'</p>');
       } elsif($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.','"'.$1.'"')
                            .' <br />'.&mt('Please change the extension.')
                            .'</p>');
       }
    } 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 {
       my ($r,$tfn,$uname,$udom,$mode)=@_;
       my $output;
       my $action = '/adm/upload';
       my $returnflag = '';
       if ($mode eq 'testbank') {
           $action = '/adm/testbank';
       } elsif ($mode eq 'imsimport') {
           $action = '/adm/imsimport';
       }
       my $fn='/priv/'.$uname.'/'.$tfn;
       $fn=~s/\/+/\//g;
       &Debug($r, "Filename is ".$tfn);
       if ($tfn) {
    &Debug($r, "Filename for tfn = ".$tfn);
    my $target='/home/'.$uname.'/public_html'.$tfn;
    &Debug($r, "target -> ".$target);
   #     target is the full filesystem path of the destination file.
    my $base = &File::Basename::basename($fn);
    my $path = &File::Basename::dirname($fn);
    $base    = &HTML::Entities::encode($base,'<>&"');
    my $url  = $path."/".$base; 
    &Debug($r, "URL is now ".$url);
    my $datatoken=$env{'form.datatoken'};
    if (($fn) && ($datatoken)) {
               if ($env{'form.cancel'}) {
                   my $source=$r->dir_config('lonDaemons').'/tmp/'.$datatoken.'.tmp';
                   my $dirpath=$path.'/';
                   $dirpath=~s/\/+/\//g;
                   $output .= &mt('Upload cancelled.').'<br /><font size="+2"><a href="'.$dirpath.'">'.
                             &mt('Back to Directory').'</a></font>';
       } elsif ((-e $target) && (!$env{'form.override'})) {
    $output .= '<form action="'.$action.'" method="post">'.
     &mt('File [_1] exists. Overwrite?','<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.'" />'.
     '<input type="submit" name="override" value="'.&mt('Yes').'" />'.
                             '<input type="submit" name="cancel" value="'.&mt('Cancel').'" />'.
                             '</form>';
               } else {
    my $source=$r->dir_config('lonDaemons').'/tmp/'.$datatoken.'.tmp';
    my $dirpath=$path.'/';
    $dirpath=~s/\/+/\//g;
    # Check for bad extension and disallow upload
                   my $result;
                   ($result,$returnflag) = &check_extension($fn,$mode,$source,$target,$action,$dirpath,$url);
                   $output .= $result;
       }
    } else {
       $output .= '<span class="LC_error">'.
         &mt('Please use browser "Back" button and pick a filename').
         '</span><br />';
    }
       } else {
    $output .= '<span class="LC_error">'.
      &mt('Please use browser "Back" button and pick a filename').
      '</span><br />';
       }
       return ($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')) {
           $result .= &mt('File [_1] could not be copied.',
                         '<span class="LC_filename">'.$fn.'</span> ').
                     '<p class="LC_error">'.
                     &mt('The extension on this file is reserved internally by LON-CAPA.').
                     '</p>';
       } elsif ($fn=~/\.(\w+)$/ &&
                !defined(&Apache::loncommon::fileembstyle($1))) {
           $result .= &mt('File [_1] could not be copied.',
                         '<span class="LC_filename">'.$fn.'</span> ').
                     '<p class="LC_error">'.
                     &mt('The extension on this file is not recognized by LON-CAPA.').
                     '</p>';
       } elsif (-d $target) {
           $result .= &mt('File [_1] could not be copied.',
                         '<span class="LC_filename">'.$fn.'</span>').
                     '<p class="LC_error">'.
                     &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';
               $result .= &mt('Your file - [_1] - was uploaded successfully',$fn).'<br /><br />';
           } else {
               $result .= &mt('File copied.').'<br />';
           }
           # Check for embedded objects.
           my (%allfiles,%codebase);
           my ($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 $state = <<STATE;
       <input type="hidden" name="action"      value="upload_embedded" />
       <input type="hidden" name="currentpath" value="$env{'form.currentpath'}" />
       <input type="hidden" name="mode"        value="$mode" />
       <input type="hidden" name="phase"       value="three" />
       <input type="hidden" name="filename" value="$url" />
   STATE
                   $result .= "<h3>".&mt("Reference Warning")."</h3>".
                              "<p>".&mt("Completed upload of the file. This file contained references to other files.")."</p>".
                             "<p>".&mt("Please select the locations from which the referenced files are to be uploaded.")."</p>".
                             &Apache::loncommon::ask_for_embedded_content($action,$state,\%allfiles,\%codebase,
                                         {'error_on_invalid_names'   => 1,
                                          'ignore_remote_references' => 1,});
                   if ($mode eq 'testbank') {
                       $returnflag = 'embedded';
                       $result .=  '<p>'.&mt('Or [_1]continue[_2] the testbank import without these files','<a href="javascript:document.testbankForm.submit();">','</a>').'</p>';
                   }
               }
           }
           if (($mode ne 'imsimport') && ($mode ne 'testbank')) {
               $result .= '<br /><font size="+2"><a href="'.$url.'">'.
                           &mt('View file').'</a></font>';
           }
       } else {
           $result .= &mt('Failed to copy: [_1].',$!);
       }
       if ($mode ne 'imsimport' && $mode ne 'testbank') {
           $result .= '<br /><font size="+2"><a href="'.$dirpath.'">'.
                      &mt('Back to Directory').'</a></font><br />';
       }
       return ($result,$returnflag);
   }
   
   sub phasethree {
       my ($r,$fn,$uname,$udom,$mode) = @_;
       my $result;
       my $dir_root = '/home/'.$uname.'/public_html';
       my $url_root = '/priv/'.$uname;
       my $base = &File::Basename::basename($fn);
       my $path = &File::Basename::dirname($fn);
       $result = &Apache::loncommon::upload_embedded($mode,$path,$uname,$udom,
                                                     $dir_root,$url_root);
       if ($mode ne 'imsimport' && $mode ne 'testbank') {
           $result = '<br /><font size="+2"><a href="'.$url_root.$fn.'">'.
                     &mt('View main file').'</a></font>'.
                     '<br /><font size="+2"><a href="'.$url_root.$path.'">'.
                     &mt('Back to Directory').'</a></font><br />';
       }
       return $result;
   }
   
   # ---------------------------------------------------------------- Main Handler
   sub handler {
   
       my $r=shift;
   
       my $uname;
       my $udom;
       my $javascript = '';
   #
   # phase two: re-attach user
   #
       if ($env{'form.uploaduname'}) {
    $env{'form.filename'}='/priv/'.$env{'form.uploaduname'}.'/'.
       $env{'form.filename'};
       }
   
       unless ($env{'form.phase'} eq 'two') {
           $javascript = qq|
   function verifyForm() {
       var mode = document.fileupload.filetype.options[document.fileupload.filetype.selectedIndex].value
       if (mode == "testbank") {
           document.fileupload.action = "/adm/testbank";
       }
       if (mode == "imsimport") {
           document.fileupload.action = "/adm/imsimport";
       }
       if (mode == "standard") {
           document.fileupload.action = "/adm/upload";
       }
       document.fileupload.submit();
   }
    |;
       }
       ($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/^https?\:\/\/[^\/]+\///;
    $fn=~s/^\///;
    $fn=~s{(~|priv/)($LONCAPA::username_re)}{};
    $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
   
   
       &Apache::loncommon::content_type($r,'text/html');
       $r->send_http_header;
   
      $javascript = "<script type=\"text/javascript\">\n//<!--\n".
    $javascript."\n// --></script>\n";
   
       $r->print(&Apache::loncommon::start_page('Upload file to Construction Space',
        $javascript));
     
       if (($uname ne $env{'user.name'}) || ($udom ne $env{'user.domain'})) {
    $r->print('<h3><span class="LC_error">'.&mt('Co-Author').': '.$uname.
     &mt(' at ').$udom.'</span></h3>');
       }
   
       if ($env{'form.phase'} eq 'three') {
           my $output = &phasethree($r,$fn,$uname,$udom,'author');
           $r->print($output);
       } elsif ($env{'form.phase'} eq 'two') {
    my ($output,$returnflag) = &phasetwo($r,$fn,$uname,$udom);
           $r->print($output);
       } else {
    &phaseone($r,$fn,$uname,$udom);
       }
   
       $r->print(&Apache::loncommon::end_page());
       return OK;  
   }
   
   1;
   __END__
   
   
Removed from v.1.12  
changed lines
  Added in v.1.43

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