--- loncom/interface/lonindexer.pm 2002/05/09 23:01:41 1.41 +++ loncom/interface/lonindexer.pm 2003/06/16 22:09:02 1.68 @@ -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 1.68 2003/06/16 22:09:02 albertel Exp $ # # Copyright Michigan State University Board of Trustees # @@ -34,15 +34,11 @@ # 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 -# 8/28,10/15,11/28,11/29 Scott Harrison # 11/30 Matthew Hall -# 12/11,12/13 Scott Harrison # YEAR=2002 -# 1/17 Scott Harrison +# 6/29/2002 H. K. Ng # ### @@ -81,19 +77,25 @@ my $fnum; # file counter my $dnum; # directory counter # ----- Used to include or exclude files with certain extensions. -my @Only = (); +my @Only = (); my @Omit = (); # ----------------------------- 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; + + # 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') . "/"; @@ -122,24 +124,26 @@ sub handler { $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'; $extrafield=''. ''; @@ -149,7 +153,6 @@ sub handler { END } elsif ($ENV{'form.catalogmode'} eq 'groupimport') { - $hash{'mode_catalog'}='groupimport'; $extrafield=''. ''; @@ -171,11 +174,11 @@ 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 $ENV{'form.omit'}) { @@ -328,9 +331,8 @@ function gothere(val) { - ENDHEADER - +$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'}; @@ -373,38 +375,35 @@ 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<=8; $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<=8; $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
Author Keywords Language Title Size Last access Last modified All versions
Author Keywords Language Show Resource  
@@ -421,22 +420,26 @@ 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); + $r->print("\n") + if ($hash{'display_attrs_7'} == 1); + $r->print(''); # ----------------- read in what directories have previously been set to "open" foreach (keys %hash) { @@ -468,7 +471,7 @@ END my $indent = 0; $uri = $uri.'/' if $uri !~ /.*\/$/; - if ($bredir ne "on") { + if ($bredir ne 'on') { $hash{'top.level'} = $uri; $toplevel = $uri; @@ -477,7 +480,7 @@ END } # -------------------------------- if not at top level, provide an uplink arrow - if ($toplevel ne "/res/"){ + if ($toplevel ne '/res/'){ my (@uri_com) = split(/\//,$uri); pop @uri_com; my $upone = join('/',@uri_com); @@ -494,23 +497,33 @@ END $r->print(""); # -------------------------------------------------------------- end the tables - $r->print("
NameTitleSize (bytes) ". + "Last accessedAuthor(s)Last modifiedKeywordsAuthor(s)LanguageKeywords
LanguageResource
"); - $r->print("
"); + $r->print('
'); + $r->print(''); # --------------------------------------------------- end the output and return - $r->print("\n"); - untie(%hash); - } else { - $r->print('Unable to tie hash to db '. - 'file'); - return OK; + $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; $indent++; @@ -518,37 +531,39 @@ sub scanDir { my %dupdirs = %dirs; my @list=&get_list($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_8'} != 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'; } $indent--; } @@ -557,10 +572,9 @@ sub scanDir { sub get_list { my ($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 +624,8 @@ 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 +644,33 @@ 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<=7) { + $tabtag=join('',$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; @@ -689,14 +708,19 @@ 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; @@ -711,12 +735,17 @@ 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 $filecom[3] ne "") { + if ($fnptr == 0 and $filecom[3] ne '') { + my $filelink = $startdir.$filecom[0]; my @file_ext = split (/\./,$listname); my $curfext = $file_ext[-1]; if (@Omit) { @@ -734,28 +763,28 @@ sub display_line { $iconname = $curfext.".gif" unless (!defined($embstyle) || $embstyle eq 'unk' || $embstyle eq 'hdn'); # - my $filelink = $startdir.$filecom[0]; - $r->print(""); - my $metafile = grep /^$filecom[0]\.meta\&/, @list; + $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; - 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; $fnum++; } @@ -799,38 +828,58 @@ sub display_line { "TARGET=_self>metadata) ") if ($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 '' ? ' ' : $lang). " \n"); } + if ($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"); + } $r->print("\n"); } @@ -841,7 +890,7 @@ 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 +939,14 @@ 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 +965,12 @@ sub setvalues { 1; +sub cleanup { + if (tied(%hash)){ + &Apache::lonnet::logthis('Cleanup indexer: hash'); + } +} + =head1 NAME Apache::lonindexer - mod_perl module for cross server filesystem browsing