--- loncom/interface/lonindexer.pm 2001/11/01 15:59:11 1.22 +++ loncom/interface/lonindexer.pm 2003/07/21 18:35:25 1.70 @@ -1,7 +1,30 @@ # The LearningOnline Network with CAPA -# # Directory Indexer # +# $Id: lonindexer.pm,v 1.70 2003/07/21 18:35:25 ng Exp $ +# +# 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 # 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 @@ -11,20 +34,39 @@ # 05/9-05/19/2001 H. K. Ng # 05/21/2001 H. K. Ng # 05/23/2001 H. K. Ng -# 5/31,6/1,6/2,6/15 Scott Harrison # 6/26,7/8 H. K. Ng -# 8/6,8/7,8/10 Scott Harrison # 8/14 H. K. Ng -# 8/28,10/15 Scott Harrison +# 11/30 Matthew Hall +# YEAR=2002 +# 6/29/2002 H. K. Ng +# +### + +############################################################################### +## ## +## 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; +# ------------------------------------------------- modules used by this module use strict; use Apache::lonnet(); +use Apache::loncommon(); use Apache::Constants qw(:common); +use Apache::lonmeta; use Apache::File; use GDBM_File; +# ---------------------------------------- variables used throughout the module my %hash; # tied to a user-specific gdbm file my %dirs; # keys are directories, values are the open/close status my %language; # has the reference information present in language.tab @@ -35,27 +77,28 @@ my $extrafield; # default extra table ce my $fnum; # file counter my $dnum; # directory counter -# ---------------------------------------------------------------------- BEGIN -sub BEGIN { - my $fh=Apache::File->new($Apache::lonnet::perlvar{'lonTabDir'}. - '/language.tab'); - map { - $_=~/(\w+)\s+([\w\s\-]+)/; - $language{$1}=$2; - } <$fh>; -} +# ----- Used to include or exclude files with certain extensions. +my @Only = (); +my @Omit = (); + -# ---------------------------------------------------------------- Main Handler +# ----------------------------- Handling routine called via Apache and mod_perl sub handler { my $r = shift; + my $c = $r->connection(); $r->content_type('text/html'); + &Apache::loncommon::no_cache($r); $r->send_http_header; return OK if $r->header_only; $fnum=0; $dnum=0; - untie %hash; -# --------------------------------------------- machine configuration variables + # Deal with stupid global variables (is there a way around making + # these global to this package? It is just so wrong....) + undef (@Only); + undef (@Omit); + +# ------------------------------------- read in machine configuration variables my $iconpath= $r->dir_config('lonIconsURL') . "/"; my $domain = $r->dir_config('lonDefDomain'); my $role = $r->dir_config('lonRole'); @@ -71,32 +114,37 @@ sub handler { my $uri=$r->uri; # -------------------------------------- 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', + 'only','omit']); + #------------------------------------------------------------------- my $closebutton=''; my $groupimportbutton=''; my $colspan=''; $extrafield=''; my $diropendb = - "/home/httpd/perl/tmp/$domain\_$ENV{'user.name'}_indexer.db"; - - if (tie(%hash,'GDBM_File',$diropendb,&GDBM_WRCREAT,0640)) { + "/home/httpd/perl/tmp/$ENV{'user.domain'}_$ENV{'user.name'}_indexer.db"; + %hash = (); + { + my %dbfile; + if (tie(%dbfile,'GDBM_File',$diropendb,&GDBM_WRCREAT(),0640)) { + while(my($key,$value)=each(%dbfile)) { + $hash{$key}=$value; + } + untie(%dbfile); + } + } + { if ($ENV{'form.launch'} eq '1') { &start_fresh_session(); - } - + } # -------------------- refresh environment with user database values (in %hash) - if ($hash{'mode_catalog'} eq 'interactive') { - $ENV{'form.catalogmode'}='interactive'; - } - if ($hash{'mode_catalog'} eq 'groupimport') { - $ENV{'form.catalogmode'}='groupimport'; - } + &setvalues(\%hash,'form.catalogmode',\%ENV,'form.catalogmode' ); # --------------------- define extra fields and buttons in case of special mode if ($ENV{'form.catalogmode'} eq 'interactive') { - $hash{'mode_catalog'}='interactive'; $extrafield=''. ''; @@ -106,7 +154,6 @@ sub handler { END } elsif ($ENV{'form.catalogmode'} eq 'groupimport') { - $hash{'mode_catalog'}='groupimport'; $extrafield=''. ''; @@ -119,35 +166,136 @@ END onClick="javascript:select_group()"> 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'); + &setvalues(\%hash,'form.only' ,\%ENV,'form.only' ); + &setvalues(\%hash,'form.omit' ,\%ENV,'form.omit' ); + + # Deal with 'omit' and 'only' + if (exists $ENV{'form.omit'}) { + @Omit = split(',',$ENV{'form.omit'}); + } + if (exists $ENV{'form.only'}) { + @Only = split(',',$ENV{'form.only'}); + } + + 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 my $catalogmodefunctions=''; if ($ENV{'form.catalogmode'} eq 'interactive' or $ENV{'form.catalogmode'} eq 'groupimport') { - $catalogmodefunctions=< $catalogmodefunctions -function openWindow(url, wdwName, w, h, toolbar,scrollbar) { +function openWindow(url, wdwName, w, h, toolbar,scrollbar,locationbar) { var options = "width=" + w + ",height=" + h + ","; options += "resizable=yes,scrollbars="+scrollbar+",status=no,"; - options += "menubar=no,toolbar="+toolbar+",location=no,directories=no"; + options += "menubar=no,toolbar="+toolbar+",location="+locationbar+",directories=no"; var newWin = window.open(url, wdwName, options); newWin.focus(); } @@ -187,9 +332,8 @@ function gothere(val) { - ENDHEADER - +$r->print(&Apache::loncommon::bodytag('Browse Resources')); # - Evaluate actions from previous page (both cumulatively and chronologically) if ($ENV{'form.catalogmode'} eq 'groupimport') { my $acts=$ENV{'form.acts'}; @@ -198,14 +342,14 @@ ENDHEADER my %achash; my $ac=0; # some initial hashes for working with data - map { + foreach (@Acts) { my ($state,$ref)=split(/a/); $ahash{$ref}=$state; $achash{$ref}=$ac; $ac++; - } (@Acts); + } # sorting through the actions and changing the tied database hash - map { + foreach (sort {$achash{$a}<=>$achash{$b}} (keys %ahash)) { my $key=$_; if ($ahash{$key} eq '1') { $hash{'store_'.$hash{'pre_'.$key.'_link'}}= @@ -219,9 +363,9 @@ ENDHEADER delete $hash{'store_'.$hash{'pre_'.$key.'_link'}}; } } - } sort {$achash{$a}<=>$achash{$b}} (keys %ahash); + } # deleting the previously cached listing - map { + foreach (keys %hash) { if ($_ =~ /^pre_/ && $_ =~/link$/) { my $key = $_; $key =~ s/^pre_//; @@ -229,40 +373,39 @@ ENDHEADER delete $hash{'pre_'.$key.'_title'}; delete $hash{'pre_'.$key.'_link'}; } - } keys %hash; + } } -# output title - $r->print('

The LearningOnline With CAPA '. - 'Network Directory Browser

'."\n"); -# get state of file attributes to be showing - if ($ENV{'form.attrs'} ne "") { - for (my $i=0; $i<=6; $i++) { +# ---------------------------------- get state of file attributes to be showing + if ($ENV{'form.attrs'} ne '') { + for (my $i=0; $i<=9; $i++) { delete $hash{'display_attrs_'.$i}; if ($ENV{'form.attr'.$i} == 1) { - $attrchk[$i] = "checked"; + $attrchk[$i] = 'checked'; $hash{'display_attrs_'.$i} = 1; } } } else { - for (my $i=0; $i<=6; $i++) { - $attrchk[$i] = "checked" if $hash{'display_attrs_'.$i} == 1; + for (my $i=0; $i<=9; $i++) { + $attrchk[$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(<Display file attributes
+Display file attributes
- - - - - - - - + + + + + + + + + +
Size Last access Last modified All versions
Author Keywords Language Title Size Last access Last modified Statistics
Author Keywords Language Show Resource All versions  
@@ -274,33 +417,42 @@ $groupimportbutton
END - # output starting row to the indexed file/directory hierarchy +# ----------------- output starting row to the indexed file/directory hierarchy my $titleclr="#ddffff"; - $r->print("
\n"); - $r->print("\n"); - $r->print("\n"); - $r->print("\n") if ($hash{'display_attrs_0'} == 1); - $r->print("\n") - if ($hash{'display_attrs_1'} == 1); - $r->print("\n") +# $r->print(&initdebug()); +# $r->print(&writedebug("Omit:@Omit")) if (@Omit); +# $r->print(&writedebug("Only:@Only")) if (@Only); + $r->print("
NameSize (bytes) ". - "Last accessedLast modified
\n"); + $r->print("\n"); + $r->print("\n"); + $r->print("\n") + if ($hash{'display_attrs_0'} == 1); + $r->print("\n") if ($hash{'display_attrs_1'} == 1); + $r->print("\n") if ($hash{'display_attrs_2'} == 1); - $r->print("\n") + $r->print("\n") if ($hash{'display_attrs_3'} == 1); - $r->print("\n") + $r->print("\n") if ($hash{'display_attrs_4'} == 1); - $r->print("\n") + $r->print("\n") if ($hash{'display_attrs_5'} == 1); - $r->print(""); + $r->print("\n") + if ($hash{'display_attrs_6'} == 1); + $r->print("\n") + if ($hash{'display_attrs_7'} == 1); + $r->print("\n") + if ($hash{'display_attrs_8'} == 1); + $r->print(''); - # read in what directories have previously been set to "open" - map { +# ----------------- read in what directories have previously been set to "open" + foreach (keys %hash) { if ($_ =~ /^diropen_status_/) { my $key = $_; $key =~ s/^diropen_status_//; $dirs{$key} = $hash{$_}; } - } keys %hash; + } if ($ENV{'form.openuri'}) { # take care of review and refresh options my $uri=$ENV{'form.openuri'}; @@ -323,7 +475,7 @@ END my $indent = 0; $uri = $uri.'/' if $uri !~ /.*\/$/; - if ($bredir ne "on") { + if ($bredir ne 'on') { $hash{'top.level'} = $uri; $toplevel = $uri; @@ -331,8 +483,8 @@ END $toplevel = $hash{'top.level'}; } - # if not at top level, provide an uplink arrow - if ($toplevel ne "/res/"){ +# -------------------------------- if not at top level, provide an uplink arrow + if ($toplevel ne '/res/'){ my (@uri_com) = split(/\//,$uri); pop @uri_com; my $upone = join('/',@uri_com); @@ -341,32 +493,41 @@ END $indent = 1; } - # recursively go through all the directories and output as appropriate +# -------- recursively go through all the directories and output as appropriate &scanDir ($r,$toplevel,$indent,\%hash); - # information useful for group import +# ---------------------------- embed hidden information useful for group import $r->print(""); $r->print(""); - # end the tables - $r->print("
NameTitleSize (bytes) ". + "Last accessedAuthor(s)Last modifiedKeywordsAuthor(s)LanguageKeywords
LanguageResourceUsage Statistics
(Courses/Network Hits)
"); - $r->print("
"); - - # end the output and return - $r->print("\n"); - untie(%hash); - } else { - $r->print('Unable to tie hash to db '. - 'file'); - return OK; +# -------------------------------------------------------------- end the tables + $r->print('
'); + $r->print(''); + +# --------------------------------------------------- end the output and return + $r->print(''."\n"); +# } else { +# $r->print('Unable to tie hash to db '. +# 'file'); +# return OK; + } + if(! $c->aborted()) { + my %dbfile; + if (tie(%dbfile,'GDBM_File',$diropendb,&GDBM_NEWDB(),0640)) { + while (my($key,$value) = each(%hash)) { + $dbfile{$key}=$value; + } + untie(%dbfile); + } } + return OK; } - # ----------------------------------------------- recursive scan of a directory sub scanDir { my ($r,$startdir,$indent,$hashref)=@_; + my $c = $r->connection(); my ($compuri,$curdir); my $dirptr=16384; $indent++; @@ -374,37 +535,39 @@ sub scanDir { my %dupdirs = %dirs; my @list=&get_list($r,$startdir); foreach my $line (@list) { - my ($strip,$dom,$foo,$testdir,$foo)=split(/\&/,$line,5); + return if ($c->aborted()); + my ($strip,$dom,undef,$testdir,undef)=split(/\&/,$line,5); next if $strip =~ /.*\.meta$/; my (@fileparts) = split(/\./,$strip); - if ($hash{'display_attrs_6'} != 1) { + if ($hash{'display_attrs_9'} != 1) { if (scalar(@fileparts) >= 3) { my $fext = pop @fileparts; my $ov = pop @fileparts; my $fname = join ('.',@fileparts,$fext); - next if (grep /$fname/,@list and $ov =~ /\d+/); + next if (grep /\Q$fname\E/,@list and $ov =~ /\d+/); } } - if ($dom eq "domain") { - $compuri = join('',$strip,"/"); # dom list has /res/ + if ($dom eq 'domain') { + $compuri = join('',$strip,'/'); # dom list has /res/ $curdir = $compuri; } else { # user, dir & file have name only, i.e., w/o path - $compuri = join('',$startdir,$strip,"/"); + $compuri = join('',$startdir,$strip,'/'); $curdir = $startdir; } - my $diropen = "closed"; + my $diropen = 'closed'; if (($dirptr&$testdir) or ($dom =~ /^(domain|user)$/)) { while (my ($key,$val)= each %dupdirs) { if ($key eq $compuri and $val eq "open") { $diropen = "opened"; - delete $dupdirs{key},$dirs{$key}; + delete($dupdirs{$key}); + delete($dirs{$key}); } } } &display_line($r,$diropen,$line,$indent,$curdir,$hashref,@list); - &scanDir ($r,$compuri,$indent) if $diropen eq "opened"; + &scanDir ($r,$compuri,$indent) if $diropen eq 'opened'; } $indent--; } @@ -413,13 +576,12 @@ sub scanDir { sub get_list { my ($r,$uri)=@_; my @list; - my $luri = $uri; - $luri =~ s/\//_/g; + (my $luri = $uri) =~ s/\//_/g; - if ($ENV{'form.attrs'} eq "Refresh") { - map { + if ($ENV{'form.attrs'} eq 'Refresh') { + foreach (keys %hash) { delete $hash{$_} if ($_ =~ /^dirlist_files_/); - } keys %hash; + } } if ($hash{'dirlist_files'.$luri}) { @@ -431,6 +593,29 @@ sub get_list { return @list=&match_ext($r,@list); } +sub initdebug { + return < +var debugging = true; +if (debugging) { + var debuggingWindow = window.open('','Debug','width=400,height=300',true); +} + +function output(text) { + if (debugging) { + debuggingWindow.document.writeln(text); + } +} +output("Debugging Window
");   
+
+ENDJS
+}
+
+sub writedebug {
+    my $text = shift;
+    return "";
+}
+
 # -------------------- filters out files based on extensions (returns an array)
 sub match_ext {
     my ($r,@packlist)=@_;
@@ -439,29 +624,19 @@ sub match_ext {
     my @fileext;
     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) {
 	chomp $line;
 	$line =~ s/^\/home\/httpd\/html//;
 	my @unpackline = split (/\&/,$line);
-	next if ($unpackline[0] eq ".");
-	next if ($unpackline[0] eq "..");
+	next if ($unpackline[0] eq '.');
+	next if ($unpackline[0] eq '..');
 	my @filecom = split (/\./,$unpackline[0]);
 	my $fext = pop(@filecom);
 	my $fnptr = $unpackline[3]&$dirptr;
  	if ($fnptr == 0 and $unpackline[3] ne "") {
-	    foreach my $nextline (@fileext) {
-		push @trimlist,$line if $nextline eq $fext;
-	    }
+	    my $embstyle = &Apache::loncommon::fileembstyle($fext);
+            push @trimlist,$line if (defined($embstyle) && 
+				     ($embstyle ne 'hdn' or $fext eq 'meta'));
 	} else {
 	    push @trimlist,$line;
 	}
@@ -471,33 +646,35 @@ sub match_ext {
 }
 
 # ------------------------------- displays one line in appropriate table format
-sub display_line{
+sub display_line {
     my ($r,$diropen,$line,$indent,$startdir,$hashref,@list)=@_;
-    my (@pathfn, $fndir, $fnptr);
+    my (@pathfn, $fndir);
     my $dirptr=16384;
     my $fileclr="#ffffe6";
-    my $iconpath= $r->dir_config('lonIconsURL') . "/";
+    my $iconpath= $r->dir_config('lonIconsURL') . '/';
 
     my @filecom = split (/\&/,$line);
     my @pathcom = split (/\//,$filecom[0]);
     my $listname = $pathcom[scalar(@pathcom)-1];
     my $fnptr = $filecom[3]&$dirptr;
     my $msg = 'View '.$filecom[0].' resources';
-    $msg = 'Close '.$filecom[0].' directory' if $diropen eq "opened";
+    $msg = 'Close '.$filecom[0].' directory' if $diropen eq 'opened';
 
-    my $tabtag="";
+    my $tabtag='';
     my $i=0;
 
-    while ($i<=5) {
-	$tabtag=join('',$tabtag," ")
+    while ($i<=8) {
+	$tabtag=join('',$tabtag," ")
 	    if $hash{'display_attrs_'.$i} == 1;
 	$i++;
     }
+	
+    my $valign = ($hash{'display_attrs_7'} == 1 ? 'top' : 'bottom');
 
 # display uplink arrow
-    if ($filecom[1] eq "viewOneUp") {
-	$r->print("$extrafield");
-	$r->print("\n");
+    if ($filecom[1] eq 'viewOneUp') {
+	$r->print("$extrafield");
+	$r->print("\n");
 	$r->print ('
\n"); return OK; } +# Do we have permission to look at this? + + return OK if (!&Apache::lonnet::allowed('bre',$startdir.$filecom[0])); # display domain - if ($filecom[1] eq "domain") { + if ($filecom[1] eq 'domain') { $r->print (''."\n") if ($ENV{'form.dirPointer'} eq "on"); - $r->print("$extrafield"); - $r->print(""); + $r->print("$extrafield"); + $r->print(""); &begin_form ($r,$filecom[0].'/'); my $anchor = $filecom[0].'/'; $anchor =~ s/\///g; @@ -532,14 +712,19 @@ sub display_line{ $r->print ('
print (' border="0" />'."\n"); - $r->print("Domain - $listname $tabtag\n"); + $r->print ("Domain - $listname "); + if ($Apache::lonnet::domaindescription{$listname}) { + $r->print("(".$Apache::lonnet::domaindescription{$listname}. + ")"); + } + $r->print (" $tabtag\n"); return OK; # display user directory } - if ($filecom[1] eq "user") { - $r->print("$extrafield"); - $r->print("\n"); + if ($filecom[1] eq 'user') { + $r->print("$extrafield"); + $r->print("\n"); my $curdir = $startdir.$filecom[0].'/'; my $anchor = $curdir; $anchor =~ s/\///g; @@ -554,34 +739,56 @@ sub display_line{ $r->print (''); - $r->print ($listname.$tabtag.''."\n"); + my $domain=(split(m|/|,$startdir))[2]; + my $plainname=&Apache::loncommon::plainname($listname,$domain); + $r->print ($listname); + if (defined($plainname) && $plainname) { $r->print(" ($plainname) "); } + $r->print ($tabtag.''."\n"); return OK; } # display file - if ($fnptr == 0 and $filecom[3] ne "") { - my @file_ext = split (/\./,$listname); - my $curfext = $file_ext[scalar(@file_ext)-1]; + if ($fnptr == 0 and $filecom[3] ne '') { my $filelink = $startdir.$filecom[0]; - $r->print(""); - my $metafile = grep /^$filecom[0]\.meta\&/, @list; + my @file_ext = split (/\./,$listname); + my $curfext = $file_ext[-1]; + if (@Omit) { + foreach (@Omit) { return OK if ($curfext eq $_); } + } + if (@Only) { + my $skip = 1; + foreach (@Only) { $skip = 0 if ($curfext eq $_); } + return OK if ($skip > 0); + } + # 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'); + # + $r->print(""); + my $metafile = grep /^\Q$filecom[0]\E\.meta\&/, @list; my $title; if ($ENV{'form.catalogmode'} eq 'interactive') { $title=$listname; $title = &Apache::lonnet::metadata($filelink,'title') if ($metafile == 1); $title=$listname unless $title; - $r->print(""); + my $titleesc=HTML::Entities::encode($title); + $titleesc=~s/\'/\\'/; #' (clean up this spare quote) + $r->print(""); $r->print("". "\n"); - $r->print(""); + $r->print(""); } elsif ($ENV{'form.catalogmode'} eq 'groupimport') { $title=$listname; $title = &Apache::lonnet::metadata($filelink,'title') if ($metafile == 1); $title=$listname unless $title; + my $titleesc=&HTML::Entities::encode($title); $r->print("
\n"); $r->print("\n"); + "value='$titleesc'>\n"); $r->print("
\n"); - $r->print(""); + $r->print(""); $hash{"pre_${fnum}_link"}=$filelink; - $hash{"pre_${fnum}_title"}=$title; + $hash{"pre_${fnum}_title"}=$titleesc; $fnum++; } @@ -615,48 +822,77 @@ sub display_line{ ".gif border='0' />\n") if $rem > 0; } - $r->print("\n"); + $r->print("\n"); $r->print (" $listname "); $r->print (" (metadata) ") if ($metafile == 1); $r->print("\n"); - $r->print(" ", + if ($hash{'display_attrs_0'} == 1) { + my $title = &Apache::lonnet::gettitle($filelink,'title') + if ($metafile == 1); + $r->print(' '.($title eq '' ? ' ' : $title). + ' '."\n"); + } + $r->print(' ', $filecom[8]," \n") - if $hash{'display_attrs_0'} == 1; - $r->print(" ". - (localtime($filecom[9]))." \n") if $hash{'display_attrs_1'} == 1; - $r->print(" ". - (localtime($filecom[10]))." \n") + $r->print(' '. + (localtime($filecom[9]))." \n") if $hash{'display_attrs_2'} == 1; + $r->print(' '. + (localtime($filecom[10]))." \n") + if $hash{'display_attrs_3'} == 1; - if ($hash{'display_attrs_3'} == 1) { + if ($hash{'display_attrs_4'} == 1) { my $author = &Apache::lonnet::metadata($filelink,'author') if ($metafile == 1); - $author = ' ' if (!$author); - $r->print(" ".$author. + $r->print(' '.($author eq '' ? ' ' : $author). " \n"); } - if ($hash{'display_attrs_4'} == 1) { + if ($hash{'display_attrs_5'} == 1) { my $keywords = &Apache::lonnet::metadata($filelink,'keywords') if ($metafile == 1); - $keywords = ' ' if (!$keywords); - $r->print(" ".$keywords. + # $keywords = ' ' if (!$keywords); + $r->print(' '.($keywords eq '' ? ' ' : $keywords). " \n"); } - if ($hash{'display_attrs_5'} == 1) { + if ($hash{'display_attrs_6'} == 1) { my $lang = &Apache::lonnet::metadata($filelink,'language') if ($metafile == 1); - $lang = $language{$lang}; - $lang = ' ' if (!$lang); - $r->print(" ".$lang. + $lang = &Apache::loncommon::languagedescription($lang); + $r->print(' '.($lang eq '' ? ' ' : $lang). " \n"); } + if ($hash{'display_attrs_7'} == 1) { + my $output=''; + my $embstyle=&Apache::loncommon::fileembstyle($curfext); + if ($embstyle eq 'ssi') { + $output=&Apache::lonnet::ssi_body($filelink); + $output=''.$output.''; + } elsif ($embstyle eq 'img') { + $output=''; + } elsif ($filelink=~/^\/res\/(\w+)\/(\w+)\//) { + $output=''; + } + $r->print(' '.($output eq '' ? ' ':$output). + " \n"); + } + if ($hash{'display_attrs_8'} == 1) { + my (%stat) = &Apache::lonmeta::dynamicmeta($filelink) if ($metafile == 1); + my $stat = ($stat{'course'} eq '' ? '' : $stat{'course'}). + (($stat{'course'} ne '' || $stat{'count'} ne '') ? '/' : ''). + ($stat{'count'} eq '' ? '' : $stat{'count'}); + $r->print(' '.($stat eq '' ? ' ' : $stat). + ' '."\n"); + } + $r->print("\n"); } @@ -667,7 +903,7 @@ sub display_line{ my $curdir = $startdir.$filecom[0].'/'; my $anchor = $curdir; $anchor =~ s/\///g; - $r->print("$extrafield"); + $r->print("$extrafield"); &begin_form ($r,$curdir); my $indentm1 = $indent-1; if ($indentm1 < 11 and $indentm1 > 0) { @@ -714,30 +950,177 @@ sub begin_form { $dnum++; } -# ----------- grab unprocessed CGI variables that may have been appended to URL -sub get_unprocessed_cgi { - map { - my ($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 sub start_fresh_session { - delete $hash{'mode_catalog'}; - map { - if ($_ =~ /^pre_/) { - delete $hash{$_}; - } - if ($_ =~ /^store/) { - delete $hash{$_}; - } - } keys %hash; + delete $hash{'form.catalogmode'}; + delete $hash{'form.mode'}; + delete $hash{'form.form'}; + delete $hash{'form.element'}; + delete $hash{'form.omit'}; + delete $hash{'form.only'}; + foreach (keys %hash) { + delete $hash{$_} if (/^(pre_|store)/); + } +} + +# ------------------------------------------------------------------- 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; -__END__ + +sub cleanup { + if (tied(%hash)){ + &Apache::lonnet::logthis('Cleanup indexer: hash'); + } +} + +=head1 NAME + +Apache::lonindexer - mod_perl module for cross server filesystem browsing + +=head1 SYNOPSIS + +Invoked by /etc/httpd/conf/srm.conf: + + + SetHandler perl-script + PerlHandler Apache::lonindexer + + +=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