--- loncom/interface/lonindexer.pm 2002/05/09 23:01:41 1.41 +++ loncom/interface/lonindexer.pm 2003/01/09 22:04:28 1.54 @@ -1,7 +1,7 @@ # The LearningOnline Network with CAPA # Directory Indexer # -# $Id: lonindexer.pm,v 1.41 2002/05/09 23:01:41 www Exp $ +# $Id: lonindexer.pm,v 1.54 2003/01/09 22:04:28 www Exp $ # # Copyright Michigan State University Board of Trustees # @@ -43,6 +43,7 @@ # 12/11,12/13 Scott Harrison # YEAR=2002 # 1/17 Scott Harrison +# 6/29/2002 H. K. Ng # ### @@ -81,7 +82,7 @@ my $fnum; # file counter my $dnum; # directory counter # ----- Used to include or exclude files with certain extensions. -my @Only = (); +my @Only = (); my @Omit = (); @@ -89,12 +90,18 @@ my @Omit = (); sub handler { my $r = shift; $r->content_type('text/html'); + &Apache::loncommon::no_cache($r); $r->send_http_header; return OK if $r->header_only; $fnum=0; $dnum=0; untie %hash; + # 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'); @@ -124,22 +131,15 @@ sub handler { my $diropendb = "/home/httpd/perl/tmp/$domain\_$ENV{'user.name'}_indexer.db"; - if (tie(%hash,'GDBM_File',$diropendb,&GDBM_WRCREAT,0640)) { + if (tie(%hash,'GDBM_File',$diropendb,&GDBM_WRCREAT(),0640)) { if ($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'; $extrafield=''. ''; @@ -149,7 +149,6 @@ sub handler { END } elsif ($ENV{'form.catalogmode'} eq 'groupimport') { - $hash{'mode_catalog'}='groupimport'; $extrafield=''. ''; @@ -171,11 +170,11 @@ END # $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' ); + &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 $ENV{'form.omit'}) { @@ -328,9 +327,8 @@ function gothere(val) { - ENDHEADER - +$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'}; @@ -373,39 +371,35 @@ ENDHEADER } } -# ---------------------------------------------------------------- output title - $r->print( -'

The LearningOnline Network 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; $i++) { + if ($ENV{'form.attrs'} ne '') { + for (my $i=0; $i<=7; $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<=7; $i++) { + $attrchk[$i] = 'checked' if $hash{'display_attrs_'.$i} == 1; } } # ------------------------------- output state of file attributes to be showing $r->print(<Display file attributes
+Display file attributes
- - - - + + + + - - - - + + + +
Size Last access Last modified All versions Title Size Last access Last modified
Author Keywords Language  Author Keywords Language All versions
@@ -421,22 +415,24 @@ END # $r->print(&initdebug()); # $r->print(&writedebug("Omit:@Omit")) if (@Omit); # $r->print(&writedebug("Only:@Only")) if (@Only); - $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("
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(''); # ----------------- read in what directories have previously been set to "open" foreach (keys %hash) { @@ -468,7 +464,7 @@ END my $indent = 0; $uri = $uri.'/' if $uri !~ /.*\/$/; - if ($bredir ne "on") { + if ($bredir ne 'on') { $hash{'top.level'} = $uri; $toplevel = $uri; @@ -477,7 +473,7 @@ END } # -------------------------------- if not at top level, provide an uplink arrow - if ($toplevel ne "/res/"){ + if ($toplevel ne '/res/'){ my (@uri_com) = split(/\//,$uri); pop @uri_com; my $upone = join('/',@uri_com); @@ -494,11 +490,11 @@ END $r->print(""); # -------------------------------------------------------------- end the tables - $r->print("
NameTitleSize (bytes) ". + "Last accessedAuthor(s)Last modifiedKeywordsAuthor(s)LanguageKeywords
Language
"); - $r->print("
"); + $r->print('
'); + $r->print(''); # --------------------------------------------------- end the output and return - $r->print("\n"); + $r->print(''."\n"); untie(%hash); } else { $r->print('Unable to tie hash to db '. @@ -518,10 +514,10 @@ sub scanDir { my %dupdirs = %dirs; my @list=&get_list($r,$startdir); foreach my $line (@list) { - my ($strip,$dom,$foo,$testdir,$foo)=split(/\&/,$line,5); + my ($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_7'} != 1) { if (scalar(@fileparts) >= 3) { my $fext = pop @fileparts; my $ov = pop @fileparts; @@ -530,25 +526,26 @@ sub scanDir { } } - if ($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'; } $indent--; } @@ -557,10 +554,9 @@ sub scanDir { sub get_list { my ($r,$uri)=@_; my @list; - my $luri = $uri; - $luri =~ s/\//_/g; + (my $luri = $uri) =~ s/\//_/g; - if ($ENV{'form.attrs'} eq "Refresh") { + if ($ENV{'form.attrs'} eq 'Refresh') { foreach (keys %hash) { delete $hash{$_} if ($_ =~ /^dirlist_files_/); } @@ -610,8 +606,8 @@ sub match_ext { 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; @@ -630,31 +626,31 @@ sub match_ext { # ------------------------------- displays one line in appropriate table format 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<=6) { + $tabtag=join('',$tabtag," ") if $hash{'display_attrs_'.$i} == 1; $i++; } # display uplink arrow - if ($filecom[1] eq "viewOneUp") { - $r->print("$extrafield"); - $r->print("\n"); + if ($filecom[1] eq 'viewOneUp') { + $r->print("$extrafield"); + $r->print("\n"); $r->print ('
print (''."\n") if ($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; @@ -689,14 +685,15 @@ sub display_line { $r->print ('print (' border="0" />'."\n"); - $r->print("Domain - $listname $tabtag
\n"); + $r->print("Domain - $listname (". + $Apache::lonnet::domaindescription{$listname}.") $tabtag\n"); return OK; # display user directory } - if ($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; $anchor =~ s/\///g; @@ -716,7 +713,9 @@ sub display_line { } # display file - if ($fnptr == 0 and $filecom[3] ne "") { + if ($fnptr == 0 and $filecom[3] ne '') { + my $filelink = $startdir.$filecom[0]; + return OK if (!&Apache::lonnet::allowed('bre',$filelink)); my @file_ext = split (/\./,$listname); my $curfext = $file_ext[-1]; if (@Omit) { @@ -734,8 +733,7 @@ sub display_line { $iconname = $curfext.".gif" unless (!defined($embstyle) || $embstyle eq 'unk' || $embstyle eq 'hdn'); # - my $filelink = $startdir.$filecom[0]; - $r->print(""); + $r->print(""); my $metafile = grep /^$filecom[0]\.meta\&/, @list; my $title; if ($ENV{'form.catalogmode'} eq 'interactive') { @@ -743,19 +741,20 @@ sub display_line { $title = &Apache::lonnet::metadata($filelink,'title') if ($metafile == 1); $title=$listname unless $title; - my $titleesc=$title; - $titleesc=~s/\'/\\'/; #' (clean up this spare quote + 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; $fnum++; } @@ -799,36 +798,40 @@ sub display_line { "TARGET=_self>metadata) ") if ($metafile == 1); $r->print("\n"); - $r->print(" ", + if ($hash{'display_attrs_0'} == 1) { + my $title = &Apache::lonnet::metadata($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); $lang = &Apache::loncommon::languagedescription($lang); - $lang = ' ' if (!$lang); - $r->print(" ".$lang. + $r->print(' '.($lang eq '' ? ' ' : $lang). " \n"); } $r->print("\n"); @@ -841,7 +844,7 @@ 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) { @@ -890,19 +893,14 @@ sub begin_form { # --------- settings whenever the user causes the indexer window to be launched sub start_fresh_session { - delete $hash{'mode_catalog'}; - delete $hash{'form_mode'}; - delete $hash{'form_form'}; - delete $hash{'form_element'}; - delete $hash{'form_omit'}; - delete $hash{'form_only'}; + delete $hash{'form.catalogmode'}; + delete $hash{'form.mode'}; + delete $hash{'form.form'}; + delete $hash{'form.element'}; + delete $hash{'form.omit'}; + delete $hash{'form.only'}; foreach (keys %hash) { - if ($_ =~ /^pre_/) { - delete $hash{$_}; - } - if ($_ =~ /^store/) { - delete $hash{$_}; - } + delete $hash{$_} if (/^(pre_|store)/); } } @@ -921,6 +919,10 @@ sub setvalues { 1; +sub cleanup { + untie(%hash) if (tied(%hash)); +} + =head1 NAME Apache::lonindexer - mod_perl module for cross server filesystem browsing