[BACK]Return to lonindexer.pm CVS log [TXT] [DIR] Up to [LON-CAPA] / loncom / interface

Diff for /loncom/interface/lonindexer.pm between versions 1.18 and 1.39

version 1.18, 2001/08/14 14:13:03 version 1.39, 2002/03/19 19:55:52
Line 1 Line 1
 # The LearningOnline Network with CAPA  # The LearningOnline Network with CAPA
 #  
 # Directory Indexer  # Directory Indexer
 #  #
   # $Id$
   #
   # 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/
   #
 # YEAR=1999  # YEAR=1999
 # 5/21/99, 5/22,5/25,5/26,5/31,6/2,6/10,7/12,7/14 Gerd Kortemeyer)  # 5/21/99, 5/22,5/25,5/26,5/31,6/2,6/10,7/12,7/14 Gerd Kortemeyer)
 # 11/23 Gerd Kortemeyer  # 11/23 Gerd Kortemeyer
Line 15 Line 38
 # 6/26,7/8 H. K. Ng  # 6/26,7/8 H. K. Ng
 # 8/6,8/7,8/10 Scott Harrison  # 8/6,8/7,8/10 Scott Harrison
 # 8/14 H. K. Ng  # 8/14 H. K. Ng
   # 8/28,10/15,11/28,11/29 Scott Harrison
   # 11/30 Matthew Hall
   # 12/11,12/13 Scott Harrison
   # YEAR=2002
   # 1/17 Scott Harrison
   #
   ###
   
   ###############################################################################
   ##                                                                           ##
   ## ORGANIZATION OF THIS PERL MODULE                                          ##
   ##                                                                           ##
   ## 1. Description of functions                                               ##
   ## 2. Modules used by this module                                            ##
   ## 3. Choices for different output views (detailed, summary, xml, etc)       ##
   ## 4. BEGIN block (to be run once after compilation)                         ##
   ## 5. Handling routine called via Apache and mod_perl                        ##
   ## 6. Other subroutines                                                      ##
   ##                                                                           ##
   ###############################################################################
   
 package Apache::lonindexer;  package Apache::lonindexer;
   
   # ------------------------------------------------- modules used by this module
 use strict;  use strict;
 use Apache::lonnet();  use Apache::lonnet();
   use Apache::loncommon();
 use Apache::Constants qw(:common);  use Apache::Constants qw(:common);
 use Apache::File;  use Apache::File;
 use GDBM_File;  use GDBM_File;
   
   # ---------------------------------------- variables used throughout the module
 my %hash; # tied to a user-specific gdbm file  my %hash; # tied to a user-specific gdbm file
 my %dirs; # keys are directories, values are the open/close status  my %dirs; # keys are directories, values are the open/close status
 my %language; # has the reference information present in language.tab  my %language; # has the reference information present in language.tab
Line 34  my $extrafield; # default extra table ce Line 80  my $extrafield; # default extra table ce
 my $fnum; # file counter  my $fnum; # file counter
 my $dnum; # directory counter  my $dnum; # directory counter
   
 # ---------------------------------------------------------------------- BEGIN  # ----------------------------- Handling routine called via Apache and mod_perl
 sub BEGIN {  
     my $fh=Apache::File->new($Apache::lonnet::perlvar{'lonTabDir'}.  
      '/language.tab');  
     map {  
  $_=~/(\w+)\s+([\w\s\-]+)/;  
  $language{$1}=$2;  
     } <$fh>;  
 }  
   
 # ---------------------------------------------------------------- Main Handler  
 sub handler {  sub handler {
     my $r = shift;      my $r = shift;
     $r->content_type('text/html');      $r->content_type('text/html');
Line 52  sub handler { Line 88  sub handler {
     return OK if $r->header_only;      return OK if $r->header_only;
     $fnum=0;      $fnum=0;
     $dnum=0;      $dnum=0;
       untie %hash;
   
 # --------------------------------------------- machine configuration variables  # ------------------------------------- read in machine configuration variables
     my $iconpath= $r->dir_config('lonIconsURL') . "/";      my $iconpath= $r->dir_config('lonIconsURL') . "/";
     my $domain  = $r->dir_config('lonDefDomain');      my $domain  = $r->dir_config('lonDefDomain');
     my $role    = $r->dir_config('lonRole');      my $role    = $r->dir_config('lonRole');
Line 69  sub handler { Line 106  sub handler {
     my $uri=$r->uri;      my $uri=$r->uri;
   
 # -------------------------------------- see if called from an interactive mode  # -------------------------------------- see if called from an interactive mode
     &get_unprocessed_cgi();      # Get the parameters from the query string
       &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
        ['catalogmode','launch','acts','mode','form','element']);
       #-------------------------------------------------------------------
     my $closebutton='';      my $closebutton='';
     my $groupimportbutton='';      my $groupimportbutton='';
     my $colspan='';       my $colspan=''; 
Line 117  END Line 156  END
 onClick="javascript:select_group()">  onClick="javascript:select_group()">
 END  END
         }          }
    # Additions made by Matthew to make the browser a little easier to deal
    # with in the future.
    #
    # $mode (at this time) indicates if we are in edit mode.
    # $form is the name of the form that the URL is placed when the
    #       selection is made.
    # $element is the name of the element in $formname which receives
    #       the URL.
    # &Apache::lonxml::debug('Checking mode, form, element');
    &setvalues(\%hash,'form_mode'   ,\%ENV,'form.mode'   );
    &setvalues(\%hash,'form_form'   ,\%ENV,'form.form'   );
    &setvalues(\%hash,'form_element',\%ENV,'form.element');
   
    my $mode = $ENV{'form.mode'};
    my ($form,$element);
    if ($mode eq 'edit' || $mode eq 'parmset') {
       $form    = $ENV{'form.form'};
       $element = $ENV{'form.element'};
    }
    &Apache::lonxml::debug("mode=$mode form=$form element=$element");
 # ------ set catalogmodefunctions to have extra needed javascript functionality  # ------ set catalogmodefunctions to have extra needed javascript functionality
  my $catalogmodefunctions='';   my $catalogmodefunctions='';
  if ($ENV{'form.catalogmode'} eq 'interactive' or   if ($ENV{'form.catalogmode'} eq 'interactive' or
     $ENV{'form.catalogmode'} eq 'groupimport') {      $ENV{'form.catalogmode'} eq 'groupimport') {
     $catalogmodefunctions=<<END;      # The if statement below sets us up to use the old version
       # by default (ie. if $mode is undefined).  This is the easy
       # way out.  Hopefully in the future I'll find a way to get 
       # the calls dealt with in a more comprehensive manner.
       if (!defined($mode) || ($mode ne 'edit' && $mode ne 'parmset')) {
    $catalogmodefunctions=<<"END";
 function select_data(title,url) {  function select_data(title,url) {
     changeTitle(title);      changeTitle(title);
     changeURL(url);      changeURL(url);
     self.close();      self.close();
 }  }
 function select_group() {  function select_group() {
     window.location="/adm/groupsort?acts="+document.forms.fileattr.acts.value;      window.location="/adm/groupsort?catalogmode=groupimport&acts="+document.forms.fileattr.acts.value;
 }  }
 function changeTitle(val) {  function changeTitle(val) {
     if (opener.inf.document.forms.resinfo.elements.t) {      if (opener.inf) {
         opener.inf.document.forms.resinfo.elements.t.value=val;          if (opener.inf.document.forms.resinfo.elements.t) {
               opener.inf.document.forms.resinfo.elements.t.value=val;
           }
     }      }
 }  }
 function changeURL(val) {  function changeURL(val) {
     if (opener.inf.document.forms.resinfo.elements.u) {      if (opener.inf) {
  opener.inf.document.forms.resinfo.elements.u.value=val;          if (opener.inf.document.forms.resinfo.elements.u) {
       opener.inf.document.forms.resinfo.elements.u.value=val;
           }
       }
   }
   END
               } elsif ($mode eq 'edit') { # we are in 'edit' mode
    $catalogmodefunctions=<<END;
   // mode = $mode
   function select_data(title,url) {
       changeURL(url);
       self.close();
   }
   
   function select_group() {
       window.location="/adm/groupsort?catalogmode=interactive&form=$form&element=$element&mode=edit&acts="+document.forms.fileattr.acts.value;
   }
   
   function changeURL(val) {
       if (window.opener.document) {
    window.opener.document.forms["$form"].elements["$element"].value=val;
       } else {
       alert("The file you selected is: "+val);
       }
   }
   
   END
               } elsif ($mode eq 'parmset') {
    $catalogmodefunctions=<<END;
   // mode = $mode
   function select_data(title,url) {
       changeURL(url);
       self.close();
   }
   
   function select_group() {
       window.location="/adm/groupsort?catalogmode=interactive&form=$form&element=$element&mode=parmset&acts="+document.forms.fileattr.acts.value;
   }
   
   function changeURL(val) {
       if (window.opener.document) {
           var elementname  = "$element"+"_value";
           var checkboxname = "$element"+"_setparmval";
    window.opener.document.forms["$form"].elements[elementname].value=val;
           window.opener.document.forms["$form"].elements[checkboxname].checked=true;
       } else {
       alert("The file you selected is: "+val);
     }      }
 }  }
   
 END  END
               }
         }          }
  if ($ENV{'form.catalogmode'} eq 'groupimport') {          $catalogmodefunctions.=<<END;
     $catalogmodefunctions.=<<END;  
 var acts='';  var acts='';
   function rep_dirpath(suffix,val) {
       eval("document.forms.dirpath"+suffix+".acts.value=val");
   }
   END
    if ($ENV{'form.catalogmode'} eq 'groupimport') {
               $catalogmodefunctions.=<<END;
 function queue(val) {  function queue(val) {
     if (eval("document.forms."+val+".filelink.checked")) {      if (eval("document.forms."+val+".filelink.checked")) {
  var l=val.length;   var l=val.length;
Line 158  function queue(val) { Line 276  function queue(val) {
  document.forms.fileattr.acts.value+='0a'+v+'b';   document.forms.fileattr.acts.value+='0a'+v+'b';
     }      }
 }  }
 function rep_dirpath(suffix,val) {  
     eval("document.forms.dirpath"+suffix+".acts.value=val");  
 }  
 END  END
  }   }
   
Line 170  END Line 285  END
 <head>  <head>
 <title>The LearningOnline Network With CAPA Directory Browser</title>  <title>The LearningOnline Network With CAPA Directory Browser</title>
   
 <script language="javascript">  <script type="text/javascript">
 $catalogmodefunctions  $catalogmodefunctions
 function openWindow(url, wdwName, w, h, toolbar,scrollbar) {  function openWindow(url, wdwName, w, h, toolbar,scrollbar) {
     var options = "width=" + w + ",height=" + h + ",";      var options = "width=" + w + ",height=" + h + ",";
Line 196  ENDHEADER Line 311  ENDHEADER
     my %achash;      my %achash;
     my $ac=0;      my $ac=0;
     # some initial hashes for working with data      # some initial hashes for working with data
     map {      foreach (@Acts) {
  my ($state,$ref)=split(/a/);   my ($state,$ref)=split(/a/);
  $ahash{$ref}=$state;   $ahash{$ref}=$state;
  $achash{$ref}=$ac;   $achash{$ref}=$ac;
  $ac++;   $ac++;
     } (@Acts);      }
     # sorting through the actions and changing the tied database hash      # sorting through the actions and changing the tied database hash
     map {      foreach (sort {$achash{$a}<=>$achash{$b}} (keys %ahash)) {
  my $key=$_;   my $key=$_;
  if ($ahash{$key} eq '1') {   if ($ahash{$key} eq '1') {
     $hash{'store_'.$hash{'pre_'.$key.'_link'}}=      $hash{'store_'.$hash{'pre_'.$key.'_link'}}=
Line 217  ENDHEADER Line 332  ENDHEADER
  delete $hash{'store_'.$hash{'pre_'.$key.'_link'}};   delete $hash{'store_'.$hash{'pre_'.$key.'_link'}};
     }      }
  }   }
     } sort {$achash{$a}<=>$achash{$b}} (keys %ahash);      }
     # deleting the previously cached listing      # deleting the previously cached listing
     map {      foreach (keys %hash) {
  if ($_ =~ /^pre_/ && $_ =~/link$/) {   if ($_ =~ /^pre_/ && $_ =~/link$/) {
     my $key = $_;      my $key = $_;
     $key =~ s/^pre_//;      $key =~ s/^pre_//;
Line 227  ENDHEADER Line 342  ENDHEADER
     delete $hash{'pre_'.$key.'_title'};      delete $hash{'pre_'.$key.'_title'};
     delete $hash{'pre_'.$key.'_link'};      delete $hash{'pre_'.$key.'_link'};
  }   }
     } keys %hash;      }
  }   }
   
 # output title  # ---------------------------------------------------------------- output title
  $r->print('<h2><font color="#888888">The LearningOnline With CAPA '.   $r->print('<h2><font color="#888888">The LearningOnline With CAPA '.
   'Network Directory Browser</font></h2>'."\n");    'Network Directory Browser</font></h2>'."\n");
 # get state of file attributes to be showing  # ---------------------------------- get state of file attributes to be showing
  if ($ENV{'form.attrs'} ne "") {   if ($ENV{'form.attrs'} ne "") {
     for (my $i=0; $i<=6; $i++) {      for (my $i=0; $i<=6; $i++) {
  delete $hash{'display_attrs_'.$i};   delete $hash{'display_attrs_'.$i};
Line 247  ENDHEADER Line 362  ENDHEADER
  $attrchk[$i] = "checked" if $hash{'display_attrs_'.$i} == 1;   $attrchk[$i] = "checked" if $hash{'display_attrs_'.$i} == 1;
     }      }
  }   }
 # output state of file attributes to be showing  # ------------------------------- output state of file attributes to be showing
  $r->print(<<END);   $r->print(<<END);
 <b><font color="#666666">Display file attributes</font></b><br />  <b><font color="#666666">Display file attributes</font></b><br />
 <form method="post" name="fileattr" action="$uri"  <form method="post" name="fileattr" action="$uri"
Line 272  $groupimportbutton Line 387  $groupimportbutton
 </form>  </form>
 END  END
   
     # output starting row to the indexed file/directory hierarchy  # ----------------- output starting row to the indexed file/directory hierarchy
         my $titleclr="#ddffff";          my $titleclr="#ddffff";
         $r->print("<table border=0><tr><td bgcolor=#eeeeee>\n");          $r->print("<table border=0><tr><td bgcolor=#eeeeee>\n");
  $r->print("<table border=0><tr>\n");   $r->print("<table border=0><tr>\n");
Line 291  END Line 406  END
     if ($hash{'display_attrs_5'} == 1);      if ($hash{'display_attrs_5'} == 1);
  $r->print("</tr>");   $r->print("</tr>");
   
  # read in what directories have previously been set to "open"  # ----------------- read in what directories have previously been set to "open"
  map {   foreach (keys %hash) {
     if ($_ =~ /^diropen_status_/) {      if ($_ =~ /^diropen_status_/) {
  my $key = $_;   my $key = $_;
  $key =~ s/^diropen_status_//;   $key =~ s/^diropen_status_//;
  $dirs{$key} = $hash{$_};   $dirs{$key} = $hash{$_};
     }      }
  } keys %hash;   }
   
  if ($ENV{'form.openuri'}) {  # take care of review and refresh options   if ($ENV{'form.openuri'}) {  # take care of review and refresh options
     my $uri=$ENV{'form.openuri'};      my $uri=$ENV{'form.openuri'};
Line 329  END Line 444  END
     $toplevel = $hash{'top.level'};      $toplevel = $hash{'top.level'};
  }   }
   
  # if not at top level, provide an uplink arrow  # -------------------------------- if not at top level, provide an uplink arrow
  if ($toplevel ne "/res/"){   if ($toplevel ne "/res/"){
     my (@uri_com) = split(/\//,$uri);      my (@uri_com) = split(/\//,$uri);
     pop @uri_com;      pop @uri_com;
Line 339  END Line 454  END
     $indent = 1;      $indent = 1;
  }   }
   
  # recursively go through all the directories and output as appropriate  # -------- recursively go through all the directories and output as appropriate
  &scanDir ($r,$toplevel,$indent,\%hash);   &scanDir ($r,$toplevel,$indent,\%hash);
   
  # information useful for group import  # ---------------------------- embed hidden information useful for group import
  $r->print("<form name='fnum'>");   $r->print("<form name='fnum'>");
  $r->print("<input type='hidden' name='fnum' value='$fnum'></form>");   $r->print("<input type='hidden' name='fnum' value='$fnum'></form>");
   
  # end the tables  # -------------------------------------------------------------- end the tables
  $r->print("</table>");   $r->print("</table>");
  $r->print("</td></tr></table>");   $r->print("</td></tr></table>");
   
  # end the output and return  # --------------------------------------------------- end the output and return
  $r->print("</body></html>\n");   $r->print("</body></html>\n");
  untie(%hash);   untie(%hash);
     } else {      } else {
Line 361  END Line 476  END
     return OK;      return OK;
 }  }
   
   
 # ----------------------------------------------- recursive scan of a directory  # ----------------------------------------------- recursive scan of a directory
 sub scanDir {  sub scanDir {
     my ($r,$startdir,$indent,$hashref)=@_;      my ($r,$startdir,$indent,$hashref)=@_;
Line 415  sub get_list { Line 529  sub get_list {
     $luri =~ s/\//_/g;      $luri =~ s/\//_/g;
   
     if ($ENV{'form.attrs'} eq "Refresh") {      if ($ENV{'form.attrs'} eq "Refresh") {
  map {   foreach (keys %hash) {
     delete $hash{$_} if ($_ =~ /^dirlist_files_/);      delete $hash{$_} if ($_ =~ /^dirlist_files_/);
     } keys %hash;      }
     }      }
   
     if ($hash{'dirlist_files'.$luri}) {      if ($hash{'dirlist_files'.$luri}) {
Line 437  sub match_ext { Line 551  sub match_ext {
     my @fileext;      my @fileext;
     my $dirptr=16384;      my $dirptr=16384;
   
     my $tabdir  = $r->dir_config('lonTabDir');  
     my $fn = $tabdir.'/filetypes.tab';  
     if (-e $fn) {  
  my $FH=Apache::File->new($fn);  
  my @content=<$FH>;  
  foreach my $line (@content) {  
     (my $ext,my $foo) = split /\s+/,$line;  
     push @fileext,$ext;  
  }  
     }  
     foreach my $line (@packlist) {      foreach my $line (@packlist) {
  chomp $line;   chomp $line;
  $line =~ s/^\/home\/httpd\/html//;   $line =~ s/^\/home\/httpd\/html//;
Line 457  sub match_ext { Line 561  sub match_ext {
  my $fext = pop(@filecom);   my $fext = pop(@filecom);
  my $fnptr = $unpackline[3]&$dirptr;   my $fnptr = $unpackline[3]&$dirptr;
   if ($fnptr == 0 and $unpackline[3] ne "") {    if ($fnptr == 0 and $unpackline[3] ne "") {
     foreach my $nextline (@fileext) {      my $embstyle = &Apache::loncommon::fileembstyle($fext);
  push @trimlist,$line if $nextline eq $fext;              push @trimlist,$line if (defined($embstyle) && 
     }       ($embstyle ne 'hdn' or $fext eq 'meta'));
  } else {   } else {
     push @trimlist,$line;      push @trimlist,$line;
  }   }
Line 469  sub match_ext { Line 573  sub match_ext {
 }  }
   
 # ------------------------------- displays one line in appropriate table format  # ------------------------------- displays one line in appropriate table format
 sub display_line{  sub display_line {
     my ($r,$diropen,$line,$indent,$startdir,$hashref,@list)=@_;      my ($r,$diropen,$line,$indent,$startdir,$hashref,@list)=@_;
     my (@pathfn, $fndir, $fnptr);      my (@pathfn, $fndir, $fnptr);
     my $dirptr=16384;      my $dirptr=16384;
Line 559  sub display_line{ Line 663  sub display_line{
 # display file  # display file
     if ($fnptr == 0 and $filecom[3] ne "") {      if ($fnptr == 0 and $filecom[3] ne "") {
  my @file_ext = split (/\./,$listname);   my @file_ext = split (/\./,$listname);
  my $curfext = $file_ext[scalar(@file_ext)-1];   my $curfext = $file_ext[-1];
    # Set the icon for the file
    my $iconname = "unknown.gif";
    my $embstyle = &Apache::loncommon::fileembstyle($curfext);
    # The unless conditional that follows is a bit of overkill
    $iconname = $curfext.".gif" unless
       (!defined($embstyle) || $embstyle eq 'unk' || $embstyle eq 'hdn');
    #
  my $filelink = $startdir.$filecom[0];   my $filelink = $startdir.$filecom[0];
  $r->print("<tr><td nowrap valign='bottom' bgcolor=$fileclr>");   $r->print("<tr><td nowrap valign='bottom' bgcolor=$fileclr>");
  my $metafile = grep /^$filecom[0]\.meta\&/, @list;   my $metafile = grep /^$filecom[0]\.meta\&/, @list;
Line 569  sub display_line{ Line 680  sub display_line{
     $title = &Apache::lonnet::metadata($filelink,'title')      $title = &Apache::lonnet::metadata($filelink,'title')
  if ($metafile == 1);   if ($metafile == 1);
     $title=$listname unless $title;      $title=$listname unless $title;
     $r->print("<a href='javascript:select_data(\"",      my $titleesc=$title;
               $title,'","',$filelink,"\")'>");      $titleesc=~s/\'/\\'/; #' (clean up this spare quote
               $r->print("<a href=\"javascript:select_data(\'",
                         $titleesc,"','",$filelink,"')\">");
     $r->print("<img src='",$iconpath,"select.gif' border='0' /></a>".      $r->print("<img src='",$iconpath,"select.gif' border='0' /></a>".
       "\n");        "\n");
     $r->print("</td><td valign='bottom' nowrap bgcolor=$fileclr>");      $r->print("</td><td valign='bottom' nowrap bgcolor=$fileclr>");
Line 613  sub display_line{ Line 726  sub display_line{
       ".gif border='0' />\n") if $rem > 0;        ".gif border='0' />\n") if $rem > 0;
  }   }
   
  $r->print("<img src=$iconpath$curfext.gif border='0' />\n");   $r->print("<img src=$iconpath$iconname border='0' />\n");
  $r->print (" <a href=\"javascript:openWindow('".$filelink.   $r->print (" <a href=\"javascript:openWindow('".$filelink.
    "', 'metadatafile', '450', '500', 'no', 'yes')\";".     "', 'metadatafile', '450', '500', 'no', 'yes')\";".
    " TARGET=_self>$listname</a> ");     " TARGET=_self>$listname</a> ");
Line 650  sub display_line{ Line 763  sub display_line{
  if ($hash{'display_attrs_5'} == 1) {   if ($hash{'display_attrs_5'} == 1) {
     my $lang = &Apache::lonnet::metadata($filelink,'language')      my $lang = &Apache::lonnet::metadata($filelink,'language')
  if ($metafile == 1);   if ($metafile == 1);
     $lang = $language{$lang};      $lang = &Apache::loncommon::languagedescription($lang);
     $lang = '&nbsp;' if (!$lang);      $lang = '&nbsp;' if (!$lang);
     $r->print("<td bgcolor=$fileclr valign=bottom> ".$lang.      $r->print("<td bgcolor=$fileclr valign=bottom> ".$lang.
       " </td>\n");        " </td>\n");
Line 712  sub begin_form { Line 825  sub begin_form {
     $dnum++;      $dnum++;
 }  }
   
 # ----------- grab unprocessed CGI variables that may have been appended to URL  
 sub get_unprocessed_cgi {  
     map {  
        my ($name, $value) = split(/=/,$_);  
        $value =~ tr/+/ /;  
        $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;  
        if ($name eq 'catalogmode' or $name eq 'launch' or $name eq 'acts') {  
            $ENV{'form.'.$name}=$value;  
        }  
     } (split(/&/,$ENV{'QUERY_STRING'}));  
 }  
   
 # --------- settings whenever the user causes the indexer window to be launched  # --------- settings whenever the user causes the indexer window to be launched
 sub start_fresh_session {  sub start_fresh_session {
     delete $hash{'mode_catalog'};      delete $hash{'mode_catalog'};
     map {      delete $hash{'form_mode'};
       delete $hash{'form_form'};
       delete $hash{'form_element'};
       foreach (keys %hash) {
  if ($_ =~ /^pre_/) {   if ($_ =~ /^pre_/) {
     delete $hash{$_};      delete $hash{$_};
  }   }
  if ($_ =~ /^store/) {   if ($_ =~ /^store/) {
     delete $hash{$_};      delete $hash{$_};
  }   }
     } keys %hash;          }
   }
   
   # ------------------------------------------------------------------- setvalues
   sub setvalues {
       # setvalues is used in registerurl to synchronize the database
       # hash and environment hashes
       my ($H1,$h1key,$H2,$h2key) =@_;
       #
       if (exists $H2->{$h2key}) {
    $H1->{$h1key} = $H2->{$h2key};
       } elsif (exists $H1->{$h1key}) {
    $H2->{$h2key} = $H1->{$h1key};
       } 
 }  }
   
 1;  1;
 __END__  
   =head1 NAME
   
   Apache::lonindexer - mod_perl module for cross server filesystem browsing
   
   =head1 SYNOPSIS
   
   Invoked by /etc/httpd/conf/srm.conf:
   
    <LocationMatch "^/res.*/$">
    SetHandler perl-script
    PerlHandler Apache::lonindexer
    </LocationMatch>
   
   =head1 INTRODUCTION
   
   This module enables a scheme of browsing across a cross server.
   
   This is part of the LearningOnline Network with CAPA project
   described at http://www.lon-capa.org.
   
   =head1 BEGIN SUBROUTINE
   
   This routine is only run once after compilation.
   
   =over 4
   
   =item *
   
   Initializes %language hash table.
   
   =back
   
   =head1 HANDLER SUBROUTINE
   
   This routine is called by Apache and mod_perl.
   
   =over 4
   
   =item *
   
   read in machine configuration variables
   
   =item *
   
   see if called from an interactive mode
   
   =item *
   
   refresh environment with user database values (in %hash)
   
   =item *
   
   define extra fields and buttons in case of special mode
   
   =item *
   
   set catalogmodefunctions to have extra needed javascript functionality
   
   =item *
   
   print header
   
   =item *
   
   evaluate actions from previous page (both cumulatively and chronologically)
   
   =item *
   
   output title
   
   =item *
   
   get state of file attributes to be showing
   
   =item *
   
   output state of file attributes to be showing
   
   =item *
   
   output starting row to the indexed file/directory hierarchy
   
   =item *
   
   read in what directories have previously been set to "open"
   
   =item *
   
   if not at top level, provide an uplink arrow
   
   =item *
   
   recursively go through all the directories and output as appropriate
   
   =item *
   
   information useful for group import
   
   =item *
   
   end the tables
   
   =item *
   
   end the output and return
   
   =back
   
   =head1 OTHER SUBROUTINES
   
   =over 4
   
   =item *
   
   scanDir - recursive scan of a directory
   
   =item *
   
   get_list - get complete matched list based on the uri (returns an array)
   
   =item *
   
   match_ext - filters out files based on extensions (returns an array)
   
   =item *
   
   display_line - displays one line in appropriate table format
   
   =item *
   
   begin_form - prints the beginning of a form for directory or file link
   
   =item *
   
   start_fresh_session - settings whenever the user causes the indexer window
   to be launched
   
   =back
   
   =cut
Removed from v.1.18  
changed lines
  Added in v.1.39

FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>