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Diff for /loncom/interface/lonindexer.pm between versions 1.22 and 1.23

version 1.22, 2001/11/01 15:59:11 version 1.23, 2001/11/28 16:47:25
Line 15 Line 15
 # 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 Scott Harrison  # 8/28,10/15,11/28 Scott Harrison
   #
   # $Id$
   ###
   
   ###############################################################################
   ##                                                                           ##
   ## 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::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 45  sub BEGIN { Line 63  sub BEGIN {
     } <$fh>;      } <$fh>;
 }  }
   
 # ---------------------------------------------------------------- Main Handler  # ----------------------------- Handling routine called via Apache and mod_perl
 sub handler {  sub handler {
     my $r = shift;      my $r = shift;
     $r->content_type('text/html');      $r->content_type('text/html');
Line 55  sub handler { Line 73  sub handler {
     $dnum=0;      $dnum=0;
     untie %hash;      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 232  ENDHEADER Line 250  ENDHEADER
     } keys %hash;      } 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 249  ENDHEADER Line 267  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 274  $groupimportbutton Line 292  $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");   $r->print("<table border=0><tr>\n");
Line 293  END Line 311  END
     if ($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 {   map {
     if ($_ =~ /^diropen_status_/) {      if ($_ =~ /^diropen_status_/) {
  my $key = $_;   my $key = $_;
Line 331  END Line 349  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 341  END Line 359  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 363  END Line 381  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 471  sub match_ext { Line 488  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 740  sub start_fresh_session { Line 757  sub start_fresh_session {
 }  }
   
 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 *
   
   get_unprocessed_cgi - grab unprocessed CGI variables that may have been
   appended to URL
   
   =item *
   
   start_fresh_session - settings whenever the user causes the indexer window
   to be launched
   
   =back
   
   =cut
Removed from v.1.22  
changed lines
  Added in v.1.23

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