From: short <>
Date: Mon, 20 Oct 2003 08:07:11 +0000 (+0000)
Subject: modperl branch collapsed back to MAIN trunk, man!
X-Git-Tag: bp_apache2~10
X-Git-Url: http://git.jankratochvil.net/?p=MyWeb.git;a=commitdiff_plain;h=633dc05b0519d86762bd084d872d34f9183237e0

modperl branch collapsed back to MAIN trunk, man!
---

diff --git a/Makefile.am b/Makefile.am
new file mode 100644
index 0000000..841a425
--- /dev/null
+++ b/Makefile.am
@@ -0,0 +1,26 @@
+# $Id$
+# automake source for the Makefile of project/ subdir
+# Copyright (C) 2003 Jan Kratochvil <project-www.jankratochvil.net@jankratochvil.net>
+# 
+# This program 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; exactly version 2 of June 1991 is required
+# 
+# This program 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 this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+
+include $(top_srcdir)/Makefile-head.am
+
+EXTRA_DIST+= \
+		Project.pm \
+		Web.pm \
+		arrow-left.png \
+		arrow-right.png \
+		arrow-up.png
diff --git a/Project.pm b/Project.pm
new file mode 100644
index 0000000..3d836d8
--- /dev/null
+++ b/Project.pm
@@ -0,0 +1,338 @@
+# $Id$
+# Common functions for HTML/XHTML output generation
+# Copyright (C) 2003 Jan Kratochvil <project-www.jankratochvil.net@jankratochvil.net>
+# 
+# This program 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; exactly version 2 of June 1991 is required
+# 
+# This program 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 this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+
+package My::Project;
+require 5.6.0;	# at least 'use warnings;' but we need some 5.6.0+ modules anyway
+our $VERSION=do { my @r=(q$Revision$=~/\d+/g); sprintf "%d.".("%03d"x$#r),@r; };
+our $CVS_ID=q$Id$;
+use strict;
+use warnings;
+
+use My::Web;
+
+use Exporter;
+our @EXPORT=qw();
+our @ISA=qw(My::Web Exporter);
+
+
+sub ENTRIES     { return top_dir_disk()."/project/CVS/Entries"; }
+sub ENTRIES_LOG { return top_dir_disk()."/project/CVS/Entries.Log"; }
+
+
+sub print_project
+{
+my($class,$ListItem,%args)=@_;
+
+	print "<h1>".$W->{"title"}."</h1>\n";
+	print $ListItem->{"description"};
+	print "<hr />\n";
+	print $args{"before_project_data"} || "";
+	return if $args{"no_project_data"};
+	my @table=(
+		{"key"=>"summary","text"=>"Summary"},
+		{"key"=>"license","text"=>"License","format"=>sub ($) {
+				my %known=(
+						"PD"=>"Public Domain",
+						"GPL"=>a_href("http://www.gnu.org/licenses/gpl.html","GNU General Public License"),
+						"LGPL"=>a_href("http://www.gnu.org/licenses/lgpl.html","GNU Lesser General Public License"),
+						"com"=>"Commercial"
+						);
+				return $known{$_[0]};
+				}},
+		{"key"=>"maintenance","text"=>"State","format"=>sub ($) {
+				my %known=(
+						"active"=>"Ready to use. Project is now actively developed.",
+						"ready"=>"Ready to use. Maintained.",
+						"dead"=>"Dead code, no longer supported.",
+						"merge"=>"Functions belong to existing other project.",
+						"obsolete"=>"Obsoleted.",
+						"update"=>"Package needs updating to recent software.",
+						"accepted"=>"This patch got already integrated by the original package maintainer.",
+						"pending"=>"Patch is ready to be applied to the mainstream.",
+						"ignored"=>"Patch was ignored. It is not applied in the mainstream.",
+						""=>"",
+						);
+				my @r;
+				for ($known{($_[0]=~/^([^-]*)-?/)[0] || ""}) {
+					push @r,$_ if $_;
+					push @r," $'" if $';
+					}
+				return join(" ",@r);
+				}},
+		{"key"=>"aminet","text"=>a_href('http://www.aminet.net/','Aminet'),"format"=>sub ($) {
+				return join(" ",
+						a_href('http://www.aminet.net/'.$_[0].".lha",$_[0].".lha"),
+						"(".a_href('http://www.aminet.net/'.$_[0].".readme","readme").")");
+				}},
+		{"key"=>qr(^download\b),"text"=>sub ($) {
+						$_[0]=~s/^download//;
+						$_[0]=~s/^-/ /;
+						return "Download".$_[0];
+						},
+				"format"=>sub ($) {
+						return a_href($_[0],CGI::escapeHTML(File::Basename::basename($_[0])));
+						}},
+		{"key"=>qr(^link\b),"text"=>sub ($) {
+						$_[0]=~s/^link-//;
+						return $_[0];
+						},
+				"format"=>sub ($) {
+						return($_[0]=~/^<a\b/ ? $_[0] : a_href($_[0],CGI::escapeHTML($_[0])));
+						}},
+		{"key"=>qr(^cvs\b),"text"=>sub ($) {
+						$_[0]=~s/^cvs//;
+						$_[0]=~s/^-/ /;
+						return "CVS".$_[0];
+						},
+				"format"=>sub ($$) {
+						my($val,$key)=@_;
+						$key=~s/^cvs//;
+						$key=~s/^-/ /;
+						my $branch="";
+						$branch=$1 if $val=~s/:(.*)//;
+						return join("<br />\n\t\t",
+								CGI::escapeHTML("cvs -d ".$W->{"pserver"}.":".$W->{"pserver_path"}." -z3"
+										." checkout".(!$branch ? "" : " -r $branch -kk")
+										.($val!~m#/# ? "" : " -d ".File::Basename::basename($val))
+										." $val"),
+								join(" | \n\t\t",
+										map({ a_href($_->[1],$_->[0]); }
+												["ViewCVS CVS repository",$W->{"project_viewcvs"}.$val."/".(!$branch ? "" : '?only_with_tag='.$branch)],
+												["Download CVS snapshot" ,
+														$W->{"project_viewcvs"}.$val."/".File::Basename::basename($val).".tar.gz?tarball=1"
+																.(!$branch ? "" : '&only_with_tag='.$branch)],
+												["CVS ChangeLog"         ,"/project/ChangeLog.txt.pl?cvs=$val"])));
+						}},
+		{"key"=>"ownership","text"=>"Ownership"},
+		{"key"=>"sponsorship","text"=>"Sponsorship"},
+		{"key"=>"language","text"=>"Programming language","format"=>sub ($) {
+				return a_href("http://java.sun.com/",CGI::escapeHTML($_[0]))
+						if $_[0]=~/^Java\b/;
+				return a_href("http://www.php.net/",CGI::escapeHTML($_[0]))
+						if $_[0]=~/^PHP\b/;
+				return undef();
+				}},
+		);
+
+sub tableit_func
+{
+my($tableit,$val,$key,$ListItem)=@_;
+
+	delete $ListItem->{$key};
+	my $r="";
+	$r.="<tr>";
+		if ($tableit->{"text"}) {
+			$r.="<td>";
+				$r.=(!ref $_ ? $_ : &{$_}($key)) for ($tableit->{"text"});
+			$r.="</td>";
+			}
+		if ($tableit->{"format"}) {
+			do { $val=$_ if defined $_; } for (&{$tableit->{"format"}}($val,$key));
+			}
+		return join("",map("<tr><td>".$_->[0]."</td><td>".$_->[1]."</td></tr>\n",@$val))
+				if ref $val;
+		$r.="<td>$val</td>";
+	$r.="</tr>\n";
+}
+
+	print '<table border="0" class="print_project">'."\n";
+		for my $tableit (@table) {
+			if (!ref $tableit->{"key"}) {
+				print tableit_func($tableit,$ListItem->{$tableit->{"key"}},$tableit->{"key"},$ListItem)
+						if $ListItem->{$tableit->{"key"}};
+				}
+			else {
+				for my $key (@{$ListItem->{"keys_array"}}) {
+					my $keyregex=$tableit->{"key"};
+					next if $key!~/$keyregex/;
+					print tableit_func($tableit,$ListItem->{$key},$key,$ListItem);
+					}
+				}
+			}
+	print "</table>\n";
+	print vskip;
+}
+
+sub project_arr_to_hash (@)
+{
+my(@arr)=@_;
+
+	return (
+			@arr,
+			"keys_array"=>[ My::Web::arr_keys(@arr) ],
+			);
+}
+
+sub title ($$)
+{
+my($class,$hashref)=@_;
+
+	return $hashref->{"name"}.": ".$hashref->{"summary"},
+}
+
+# $args{"ListItem"}=\%...;
+sub init_project ($%)
+{
+my($class,%args)=@_;
+
+	my $ListItem={ project_arr_to_hash(@{$args{"ListItem"}}) };
+	my $W=$class->init(
+			"title"=>$class->title($ListItem),
+			map(("rel_$_"=>top_dir('/project/Rel.pl?rel='.$_.'&project='.($args{"__PACKAGE__"}=~/^.*::([^:]+)::[^:]+$/)[0])),
+					qw(prev next)),
+			"rel_up"=>top_dir('/project/'),
+			"rel_start"=>top_dir(),
+			%args,
+			"head_css"=>($args{"head_css"} || "")."
+table.print_project td { vertical-align: top; }
+",
+			"WebConfig::heading_novskip"=>1,
+			);
+	$class->heading();
+	print $class->platforms($ListItem->{"platform"});
+	$class->print_project({ %$ListItem },%args);
+	return $W;
+}
+
+sub one_item_list_read($$)
+{
+my($class,$name)=@_;
+
+	Wrequire "project::${name}::ListItem";
+	my $item=eval('\@project::'.$name.'::ListItem::ListItem');
+	do { warn "Broken project/$name/ListItem.pm"; next; } if !defined $item;
+	return @$item;
+}
+
+sub item_hash_read ()
+{
+# FIXME: $class
+	my %dirs;
+	for my $ENTRIES (ENTRIES(),ENTRIES_LOG()) {
+		local *E;
+		next if !open E,$ENTRIES;
+		while (<E>) {
+			chomp;
+			do { $dirs{$1}=1; next; } if m#^(?:A )?D/([^/]*)/#;
+			next if m#^/([^/]*)/# ;
+			next if /^D$/;
+			warn "File $ENTRIES contains invalid line \"$_\": $!";
+			}
+		close E;
+		}
+
+	my %item;
+	for my $dir (keys(%dirs)) {
+		Wrequire "project::${dir}::ListItem";
+		my $item=eval('\@project::'.$dir.'::ListItem::ListItem');
+		do { warn "Broken project/$dir/ListItem.pm"; next; } if !defined $item;
+		$item{$dir}={ My::Project::project_arr_to_hash(My::Project->one_item_list_read($dir)) };
+		}
+	return %item;
+}
+
+our @platforms=(
+		"unixuser"=>"UNIX",
+		"unixdevel"=>"UNIX-devel",
+		"web"=>"Web",
+		"amiga"=>"Amiga",
+		"w32"=>"MS-Windows",
+		"dos"=>"MS-DOS",
+		"patch"=>"Patches",
+		);
+
+sub views ($$)
+{
+my($class,$view_selected)=@_;
+
+	my $view=sub ($$)
+		{
+		my($current,$href,$content)=@_;
+
+			return a_href($href,$content) if $current ne $view_selected;
+			return "<b>".$content."</b> (current)";
+		};
+
+	return <<"HERE";
+<h1>Project List of @{[ a_href 'http://www.jankratochvil.net/','Jan Kratochvil' ]}</h1>
+
+<ul>
+	<li>@{[ &{$view}('Detailed'     ,'/project/','Detailed project listing per platform') ]}</li>
+	<li>@{[ &{$view}('BriefPlatform','/project/List.html.pl?platform=platform',
+			'Brief project listing per platform') ]}</li>
+	<li>@{[ &{$view}('BriefUnified' ,'/project/List.html.pl',
+			'Unified brief project listing') ]}</li>
+</ul>
+@{[ vskip "1ex" ]}
+HERE
+}
+
+sub platforms ($;$%)
+{
+my($class,$platform_selected,%args)=@_;
+
+	my $r="";
+	$r.='<table border="0" align="center"><tr>'."\n";
+		$r.='<td>Projects:&nbsp;&nbsp;</td>';
+		$r.='<td>';
+			$r.='<table border="1" align="center" style="border-collapse: collapse; border-style: solid;">'."\n";
+				$r.='<tr>'."\n";
+					my @platforms=@platforms;
+					while (@platforms) {
+						my $platform_sym =shift @platforms;
+						my $platform_name=shift @platforms;
+						my $chosen=($platform_selected && $platform_selected eq $platform_sym);
+						$r.='<td style="padding: 5px;">';
+							$r.=a_href((!$platform_selected ? "" : "/project/").'#'.$platform_sym,$platform_name,
+									"attr"=>($chosen
+											? 'style="text-decoration: underline; font-weight: bold;"'
+											: 'style="text-decoration: inherit; /* revoke underline */"'));
+						$r.="</td>\n";
+						}
+				$r.='</tr>'."\n";
+			$r.='</table>'."\n";
+		$r.='</td>'."\n";
+	$r.='</tr></table>'."\n";
+	$r.=vskip "1ex" if !$args{"novskip"};
+	$r;
+}
+
+sub section ($$)
+{
+my($class,$name)=@_;
+
+	my %item=( $class->one_item_list_read($name) );
+	my $title=$class->title(\%item);
+	my $r="";
+
+	print $class->platforms($item{"platform"},"novskip"=>1);
+
+	$r.='<table border="0" align="center"><tr>'."\n";
+		$r.='<td>';
+			$r.='<table border="1" align="center" style="border-collapse: collapse; border-style: solid;">'."\n";
+				$r.='<tr><td style="font-size: larger;">'."\n";
+					$r.=a_href "/project/$name/",$title;
+				$r.='</td></tr>'."\n";
+			$r.='</table>'."\n";
+		$r.='</td>'."\n";
+	$r.='</tr></table>'."\n";
+	$r.=vskip "1ex";
+	$r;
+}
+
+1;
diff --git a/Web.pm b/Web.pm
index 013274a..e41a314 100644
--- a/Web.pm
+++ b/Web.pm
@@ -1,5 +1,3 @@
-#! /usr/bin/perl
-# 
 # $Id$
 # Common functions for HTML/XHTML output generation
 # Copyright (C) 2003 Jan Kratochvil <project-www.jankratochvil.net@jankratochvil.net>
@@ -20,161 +18,219 @@
 
 package My::Web;
 require 5.6.0;	# at least 'use warnings;' but we need some 5.6.0+ modules anyway
-use vars qw($VERSION);
-$VERSION=do { my @r=(q$Revision$=~/\d+/g); sprintf "%d.".("%03d"x$#r),@r; };
+our $VERSION=do { my @r=(q$Revision$=~/\d+/g); sprintf "%d.".("%03d"x$#r),@r; };
+our $CVS_ID=q$Id$;
 use strict;
 use warnings;
 
-use WebConfig;	# for %WebConfig
+use Exporter;
+sub Wrequire ($);
+sub Wuse ($@);
+our $W;
+our @EXPORT=qw(&Wrequire &Wuse &a_href &a_href_cz &vskip &img &centerimg &rightimg $W &top_dir &top_dir_disk);
+our @ISA=qw(Exporter);
+
+BEGIN
+{
+	sub Wrequire ($)
+	{
+	my($file)=@_;
+
+#		print STDERR "Wrequire $file\n";
+		$file=~s#/#::#g;
+		$file=~s/[.]pm$//;
+		my $class=$file;
+		$file=~s#::#/#g;
+		$file.=".pm";
+		my $aref=($W->{"packages_used"}{$Apache::Registry::curstash}||=[]);
+		push @$aref,$class
+				if !{ map(($_=>1),@$aref) }->{$class};	# Prevent duplicated entries.
+		CORE::require $file;
+		1;	# Otherwise 'require' would already file above.
+	}
+
+	sub Wuse ($@)
+	{
+	my($file,@list)=@_;
+
+#		print STDERR "Wuse $file\n";
+		Wrequire $file;
+		local $Exporter::ExportLevel=$Exporter::ExportLevel+1;
+		$file->import(@list);
+		1;
+	}
+}
+
+BEGIN { Wuse 'WebConfig'; }	# for %WebConfig
 require CGI;	# for &escapeHTML
 require Image::Size;	# for &imgsize
 use File::Basename;	# &basename
+use Carp qw(cluck confess);
+use URI::Escape;
+require HTTP::BrowserDetect;
+require HTTP::Negotiate;
+require Geo::IP;
+require CGI;
+
+
+# Undo 'www/engine/httpd-restart' as it may use obsolete Perl for 'mod_perl'
+delete $ENV{"PERLLIB"};
+delete $ENV{"LD_LIBRARY_PATH"};
+
+
+#our $W;
+		# $W->{"title"}
+		# $W->{"head"}
+		# $W->{"head_css"}
+		# $W->{"force_charset"}
+		# %{$W->{"packages_used"}
+		# $W->{"heading_done"}
+		# $W->{"footer_passed"}
+		# %{$W->{"headers"}}
+		# %{$W->{"headers_lc"}}	# maps lc($headers_key)=>$headers_key
+		# @{$W->{"packages_used"}{$Apache::Registry::curstash}}}
+		# %{$W->{"args"}}
 
-
-my %Args;
-		# $Args{"title"}
-		# $Args{"force_charset"}
-
-my $cvs_id_html;
 sub init ($%)
 {
 my($class,%args)=@_;
 
-	%WebConfig=(%WebConfig,%args);	# override %WebConfig settings
+	my $packages_used_save=$W->{"packages_used"};
+	$W={ %WebConfig,%args };	# override %WebConfig settings
+	$W->{"packages_used"}=$packages_used_save;
+
+	$W->{"__PACKAGE__"}||="Apache::ROOT".$Apache::Registry::curstash;
+
+	$W->{"top_dir"}||=eval '$'.$W->{"__PACKAGE__"}.'::top_dir';
+
+	do { $W->{$_}=0  if !defined $W->{$_}; } for ("detect_ent");
+	do { $W->{$_}=0  if !defined $W->{$_}; } for ("detect_js");
+	do { $W->{$_}=1  if !defined $W->{$_}; } for ("have_css");	# AFAIK it does not hurt anyone.
+	do { $W->{$_}=1  if !defined $W->{$_}; } for ("heading");
+	do { $W->{$_}=1  if !defined $W->{$_}; } for ("footer");
+	do { $W->{$_}=1  if !defined $W->{$_}; } for ("footer_delimit");
+	do { $W->{$_}=1  if !defined $W->{$_}; } for ("footer_mailme");
+	do { $W->{$_}=1  if !defined $W->{$_}; } for ("footer_ids");
+	do { $W->{$_}=1  if !defined $W->{$_}; } for ("indexme");
+	do { $W->{$_}="" if !defined $W->{$_}; } for ("head");
+	do { $W->{$_}="" if !defined $W->{$_}; } for ("head_css");
+
+	my $footer_any=0;
+	for (qw(footer_mailme footer_ids)) {
+		$W->{$_}=0 if !$W->{"footer"};
+		$footer_any=1 if $W->{$_};
+		}
+	$W->{"footer"}=0 if !$footer_any;
+	$W->{"footer_delimit"}=0 if !$W->{"footer"};
+
+	$W->{"r"}=Apache->request();
+
+	$W->{"QUERY_STRING"}=$W->{"r"}->args() || "";
+	   if ($W->{"QUERY_STRING"}=~/[&]amp;have_ent/)
+		{ $W->{"have_ent"}=0; }
+	elsif ($W->{"QUERY_STRING"}=~    /[&]have_ent/)
+		{ $W->{"have_ent"}=1; }
+	else
+		{ delete $W->{"have_ent"}; }
+	if ($W->{"detect_ent"} && !defined $W->{"have_ent"} && $W->{"r"}->method() eq "GET") {
+		$W->{"head"}.='<meta http-equiv="Refresh" content="0; URL='
+				.CGI::escapeHTML("http://".&{$W->{"web_hostname_sub"}}()."/".($W->{"r"}->uri()=~m#^/*(.*)$#)[0]
+						."?".($W->{"QUERY_STRING"} || "detect_ent_glue=1").'&have_ent=detect')
+				.'" />'."\n";
+		}
+	$W->{"QUERY_STRING"}=~s/([&])amp;/$1/g;
+	$W->{"r"}->args($W->{"QUERY_STRING"});
+	$ENV{"QUERY_STRING"}=$W->{"QUERY_STRING"};
+	# Do not: $W->{"r"}->args()
+	# as it parses only QUERY_STRING (not POST data).
+	$W->{"args"}={ CGI->new()->Vars() };
+	for (keys(%{$W->{"args"}})) {
+		my @vals=split /\x00/,$W->{"args"}{$_};
+		next if @vals<=1;
+		$W->{"args"}{$_}=[@vals];
+		}
+
+	do { $W->{$_}=$ENV{"HTTP_ACCEPT"} if !defined $W->{$_}; } for ("accept");
+	do { $W->{$_}=$ENV{"HTTP_USER_AGENT"} if !defined $W->{$_}; } for ("user_agent");
+
+	$W->{"browser"}=HTTP::BrowserDetect->new($W->{"user_agent"});
+
+	if (!defined $W->{"have_style"}) {
+		$W->{"have_style"}=(!$W->{"browser"}->netscape() || $W->{"browser"}->major>4 ? 1 : 0);
+		}
 
-	undef $WebConfig{"viewcvs"} if $ENV{"SCRIPT_NAME"} && $WebConfig{"viewcvs"} eq $ENV{"SCRIPT_NAME"};
-	my @cvs_id_split=split / +/,$::CVS_ID;
-	if (@cvs_id_split==8) {
-		$cvs_id_split[2]=""
-				."<a href=\"".map({ s#/viewcvs/#&~checkout~/#; } $WebConfig{"viewcvs"})."?rev=".$cvs_id_split[2]."\">"
-				.$cvs_id_split[2]."</a>";
-		$cvs_id_split[1]="<a href=\"".$WebConfig{"viewcvs"}."\">".$cvs_id_split[1]."</a>";
-		$cvs_id_split[5]="<a href=\"mailto:".$WebConfig{"admin_mail"}."\">".$cvs_id_split[5]."</a>";
+	$W->{"have_js"}=($W->{"args"}{"have_js"} ? 1 : 0);
+	if ($W->{"detect_js"} && !$W->{"have_js"}) {
+		$W->{"head"}.='<script type="text/javascript" src="'.top_dir('/have_js.js.pl').'"></script>'."\n";
 		}
-	$cvs_id_html=join " ",@cvs_id_split;
+
+	do { args_check(%$_) if $_; } for ($W->{"args_check"});
+
+	return $W;
 }
 
-sub print_project ($)
+sub top_dir_disk ()
 {
-my($class,$ListItem)=@_;
-
-	print "<h1>".$ListItem->{"name"}."</h1>\n";
-	print $ListItem->{"description"};
-	print "<hr />\n";
-	my @table=(
-		{"key"=>qr(^download\b.*),"text"=>sub ($) {
-						$_[0]=~s/^download//;
-						$_[0]=~s/^-/ /;
-						return "Download".$_[0];
-						},
-				"format"=>sub ($) {
-						my $r;
-						if ($_[0]=~m#^[a-z]+://#) {
-							$r="<a href=\"".$_[0]."\">".CGI::escapeHTML($_[0])."</a>";
-							}
-						else {
-							$r="<a href=\"".$_[0]."\">".CGI::escapeHTML(basename($_[0]))."</a>";
-							my $size=(stat $_[0])[7];
-							die "Cannot stat \"".$_[0]."\": $!" if !defined $size;
-								 if ($size>=1024*1024) { $size=int($size/(1024*1024))." MB"; }
-							elsif ($size>=1024     ) { $size=int($size/(1024     ))." KB"; }
-							else                     { $size=int($size            )." B"; }
-							$r.=" ($size)";
-							}
-						return $r;
-						}},
-		{"key"=>qr(^link\b.*),"text"=>sub ($) {
-						$_[0]=~s/^link-//;
-						return $_[0];
-						},
-				"format"=>sub ($) {
-						return "<a href=\"".$_[0]."\">".CGI::escapeHTML($_[0])."</a>";
-						}},
-		{"key"=>"summary","text"=>"Summary"},
-		{"key"=>"ownership","text"=>"Ownership"},
-		{"key"=>"license","text"=>"License","format"=>sub ($) {
-				my %known=(
-						"PD"=>"Public Domain",
-						"GPL"=>"<a href=\"http://www.gnu.org/licenses/gpl.html\">GNU General Public License</a>",
-						"LGPL"=>"<a href=\"http://www.gnu.org/licenses/lgpl.html\">GNU Lesser General Public License</a>",
-						);
-				return $known{$_[0]};
-				}},
-		{"key"=>"maintenance","text"=>"Currently maintained?","format"=>sub ($) {
-				my %known=(
-						"finished"=>"Project is finished. Possible bug reports welcome although project not actively developed.",
-						"dead"=>"Project became dead code, some updates would be required. It is no longer used, project is not supported.",
-						"obsolete"=>"Obsolete as some other existing package superseded this one.",
-						"merge"=>"Functions of this package should be merged to some other one.",
-						"update"=>"Package needs updating to be fully usable, patches welcome.",
-						"accepted"=>"This patch was accepted by the original package author. It has no longer any separate meaning.",
-						);
-				return $known{$_[0]};
-				}},
-		{"key"=>"reason","text"=>"Reason"},
-		{"key"=>"sponsorship","text"=>"Sponsoring Company"},
-		{"key"=>"language","text"=>"Programming language","format"=>sub ($) {
-				return "<a href=\"http://java.sun.com/\">".CGI::escapeHTML($_[0])."</a>"
-						if $_[0]=~/^Java\b/;
-				return "<a href=\"http://www.php.net/\">".CGI::escapeHTML($_[0])."</a>"
-						if $_[0]=~/^PHP\b/;
-				return undef();
-				}},
-		);
-	print '<table border="0">'."\n";
+	do { return $_ if $_; } for ($W->{"top_dir"});
+	return $INC[0];	# fallback
+}
 
-sub tableit_func
+sub top_dir (;$)
 {
-my($tableit,$val,$key,$ListItem)=@_;
-
-	print "<tr><td>";
-	if (!ref $tableit->{"text"}) {
-		print $tableit->{"text"};
-		}
-	else {
-		my $textfunc=$tableit->{"text"};
-		my $key=$key;
-		print &$textfunc($key);
-		}
-	print ":</td>";
-	if ($tableit->{"format"}) {
-		my $format=$tableit->{"format"};
-		my $valn=&$format($val);
-		$val=$valn if defined $valn;
+my($in)=@_;
+
+	if (my $uri=$ENV{"REQUEST_URI"}) {
+		$uri.="Index" if $uri=~m#/$#;
+		if (defined $in) {
+			my($inpath,$inquery)=split /[?]/,$in,2;
+			$inpath=~tr///cs;
+			$uri=~tr///cs;
+			for (;;) {
+				my($in1 ,$in2 )=($in =~m#^(/[^/]+)(/.*)$#);
+				my($uri1,$uri2)=($uri=~m#^(/[^/]+)(/.*)$#);
+				last if !defined $in1 || !defined $uri1 || $in1 ne $uri1;
+				$in=$in2;
+				$uri=$uri2;
+				}
+			}
+		$uri=~s#^/*##;
+		$uri=~s#[^/]+#..#g;
+		$uri=File::Basename::dirname($uri);
+		my $r=$uri.(defined $in ? $in : "");
+#		1 while $r=~s#^[.]/##;
+#		$r="./$r" if $r=~m#^(?:?.*)$#;	# empty pathname?
+		return $r;
 		}
-	print "<td>$val</td></tr>\n";
-	delete $ListItem->{$key};
+	return top_dir_disk().$in;
 }
 
-	for my $tableit (@table) {
-		if (!ref $tableit->{"key"}) {
-			tableit_func($tableit,$ListItem->{$tableit->{"key"}},$tableit->{"key"},$ListItem) if $ListItem->{$tableit->{"key"}};
-			}
-		else {
-			for my $key (keys(%$ListItem)) {
-				my $keyregex=$tableit->{"key"};
-				next if $key!~/$keyregex/;
-				tableit_func($tableit,$ListItem->{$key},$key,$ListItem);
-				}
+sub fatal (;$);
+
+sub args_check (%)
+{
+my(%tmpl)=@_;
+
+	while (my($name,$regex)=each(%tmpl)) {
+		my $name_html="Parameter <span class=\"quote\">".CGI::escapeHTML($name)."</span>";
+		$W->{"args"}{$name}="" if !defined $W->{"args"}{$name};
+		$W->{"args"}{$name}=[ $W->{"args"}{$name} ] if !ref $W->{"args"}{$name} && ref $regex;
+		fatal "$name_html passed as multivar although singlevar expected"
+				if ref $W->{"args"}{$name} && !ref $regex;
+		$regex=${$regex}[0] if ref $regex;
+		for my $val (!ref $W->{"args"}{$name} ? $W->{"args"}{$name} : @{$W->{"args"}{$name}}) {
+			$val="" if !defined $val;
+			fatal "$name_html <span class=\"quote\">".CGI::escapeHTML($val)."</span>"
+							." does not match the required regex <span class=\"quote\">".CGI::escapeHTML($regex)."</span> "
+					if $regex ne "" && $val!~/$regex/;
 			}
 		}
-	print "</table>\n";
-	print "<p>&nbsp;</p>\n";
 }
 
-# $args{"ListItem"}=\%...;
-sub init_project ($%)
+sub vskip (;$)
 {
-my($class,%args)=@_;
+my($height)=@_;
 
-	my $ListItem=$args{"ListItem"};
-	my $name=$ListItem->{"name"};
-	$name=~s#<a\s[^>]*>([^<]*)</a>#$1#g;
-	init($class,
-			"title"=>$name,
-			%args);
-	heading();
-	$class->print_project($ListItem);
+	return '<p'.(!defined $height ? "" : ' style="height: '.$height.';"').'>&nbsp;</p>'."\n";
 }
 
 sub fatal (;$)
@@ -183,64 +239,316 @@ my($msg)=@_;
 
 	$msg="UNKNOWN" if !$msg;
 
-#	heading(false/*title*/,false/*indexme*/); // notitle is always safe, don't index the error message
-	print("\n<p>&nbsp;<br />&nbsp;</p><hr /><h1 class=\"error\">FATAL ERROR: $msg!</h1>\n"
+	$W->{"indexme"}=0;	# For the case no heading was sent yet.
+	My::Web->heading();
+	print "\n".vskip("3ex")."<hr /><h1 class=\"error\">FATAL ERROR: $msg!</h1>\n"
 			."<p>You can report this problem's details to"
-			." <a href=\"mailto:".$WebConfig{"admin_mail"}."\">admin of this website</a>.</p>\n");
-#	footer();
+			." ".a_href("mailto:".$W->{"admin_mail"},"admin of this website").".</p>\n";
+	footer();
 }
 
-my $footer_passed;
 sub footer (;$)
 {
-my($delimit)=@_;
+	exit 1 if $W->{"footer_passed"}++;	# deadlock prevention:
+
+	print vskip if $W->{"footer_delimit"};
 
-	$delimit=1 if !defined $delimit;
+	if ($W->{"heading"}) {
+		do { &{$_}() if $_; } for ($W->{"footing_delimit"});
+		}
+
+	print "<hr />\n" if $W->{"footer"};
+
+	if ($W->{"footer_mailme"}) {
+		print '<form action="'.top_dir('/SendMsg.pl').'" method="post" onsubmit="'
+				."this.elements['msgscript'].value=this.elements['msghtml'].value;"
+				."this.elements['msghtml'].value='';"
+				."this.submit();"
+				.'">'."\n";
+			print '<p align="right">'."\n";
+				print '<input name="msgscript" type="hidden" />'."\n";
+				print '<input name="msghtml" type="text" size="32" alt="Message" />'."\n";
+				print '<input name="submit" type="submit" value="Quick Note" />'."\n";
+			print '</p>'."\n";
+		print '</form>'."\n";
+		}
+
+	if ($W->{"footer_ids"}) {
+		print '<p class="cvs-id">';
+		print join("<br />\n",map({ my $package=$_;
+			my $cvs_id=(eval('$'.$package."::CVS_ID")
+#					|| $package	# debug
+					);
+			if (!$cvs_id) {
+				();
+				}
+			else {
+				$cvs_id='$'.$cvs_id.'$';	# Eaten by 'q' operator.
+				my @cvs_id_split=split / +/,$cvs_id;
+				if (@cvs_id_split==8) {
+					my $file=$package;
+					$file=~s#::#/#g;
+					my $ext;
+					for (qw(.html.pl .pl .pm),"") {
+						$ext=$_;
+						last if -r top_dir_disk()."/$file$ext";
+						cluck "Class file $file not found" if !$ext;
+						}
+					$file.=$ext;
+					$cvs_id_split[2]=""
+							.a_href((map({ my $s=$_; $s=~s#/viewcvs/#$&~checkout~/#; $s; } $W->{"viewcvs"}))[0]."$file?rev=".$cvs_id_split[2],
+									$cvs_id_split[2]);
+					$cvs_id_split[1]=a_href($W->{"viewcvs"}.$file,
+							($package!~/^Apache::/ ? $package : $cvs_id_split[1]));
+					$cvs_id_split[5]=&{$W->{"cvs_id_author"}}($cvs_id_split[5]);
+					}
+				join " ",@cvs_id_split;
+				}
+			} (
+					$W->{"__PACKAGE__"},
+					__PACKAGE__,
+					@{$W->{"packages_used"}{$Apache::Registry::curstash}},
+					)));
+		print "</p>\n";
+		}
+
+	for my $package (
+			$W->{"__PACKAGE__"},
+			__PACKAGE__,
+			@{$W->{"packages_used"}{$Apache::Registry::curstash}},
+			) {
+		my $cvs_id=(eval('$'.$package."::CVS_ID")
+#				|| $package	# debug
+				);
+		print '<!-- '.$package.' - $'.$cvs_id.'$ -->'."\n" if $cvs_id;
+		}
 
-	exit(1) if $footer_passed++;	# deadlock prevention:
+	if ($W->{"heading"}) {
+		do { &{$_}() if $_; } for ($W->{"footing"});
+		}
 
-	print "<p>&nbsp;</p>\n" if $delimit;
-	print "<hr />\n<p class=\"cvs-id\">$cvs_id_html</p>\n";
 	print "</body></html>\n";
 	exit(0);
 }
 
-my $heading_done;
-
-my %headers;
-my %headers_lc;	# maps lc($headers_key)=>$headers_key
 sub header (%)
 {
 my(%pairs)=@_;
 
 	while (my($key,$val)=each(%pairs)) {
-		do { warn "Headers already sent"; next; } if $heading_done;
-		for ($headers_lc{lc $key} || ()) {
-			delete $headers{$_};
+		do { cluck "Headers already sent"; next; } if $W->{"heading_done"};
+		for ($W->{"headers_lc"}{lc $key} || ()) {
+			delete $W->{"headers"}{$_};
+			}
+		$W->{"headers_lc"}{lc $key}=$key;
+		$W->{"headers"}{$key}=$val;
+		}
+}
+
+sub size_display ($)
+{
+my($size)=@_;
+
+	   if ($size<4096)
+		{}
+	elsif ($size<1024*1024)
+		{ $size=sprintf "%.1fK",$size/1024; }
+	else
+		{ $size=sprintf "%.1fM",$size/1024/1024; }
+	$size.="B";
+	return $size;
+}
+
+sub url_is_local ($)
+{
+my($url)=@_;
+
+	return $url!~m#^[a-z]+://#;
+}
+
+sub a_href ($;$%)
+{
+my($url,$contents,%args)=@_;
+
+	do { $$_=1 if !defined $$_; } for (\$args{"size"});
+	$contents=CGI::escapeHTML($url) if !defined $contents;
+	$contents=~s#<a\b[^>]*>##gi;
+	$contents=~s#</a>##gi;
+
+	$url=top_dir($url) if url_is_local $url && $url=~m#^/#;
+
+	my $r='<a href="';
+	my $urlent=CGI::escapeHTML($url);
+	   if ($url eq $urlent)
+		{ $r.=$url; }
+	elsif (url_is_local $url)
+		{ $r.=$urlent; }
+	elsif (defined $W->{"have_ent"} && !$W->{"have_ent"})	# non-ent client
+		{ $r.=$url; }
+	elsif ($W->{"have_ent"})	# ent client
+		{ $r.=$urlent; }
+	else	# unknown client, &CGI::escapeHTML should not be needed here
+		{ $r.=CGI::escapeHTML(top_dir('/Redirect.pl?location='.uri_escape($url))); }
+	$r.='"';
+	do { $r.=" $_" if $_; } for ($args{"attr"});
+	$r.='>'.$contents.'</a>';
+	if ($args{"size"} && url_is_local($url) && $url=~/[.](?:gz|Z|rpm|zip|deb|lha)/) {	# Downloadable?
+		$url=top_dir_disk().$url if $url=~m#^/#;
+		if (!-r $url)
+			{ cluck "File not readable: $url"; }
+		else {
+			$r.='&nbsp;('.size_display((stat($url))[7]).')';
 			}
-		$headers_lc{lc $key}=$key;
-		$headers{$key}=$val;
 		}
+	return $r;
+}
+
+sub remote_ip ()
+{
+	# Do not: PerlModule                 Apache::ForwardedFor
+	#         PerlPostReadRequestHandler Apache::ForwardedFor
+	# As 'Apache::ForwardedFor' takes the first of $ENV{"HTTP_X_FORWARDED_FOR"}
+	# while the contents is '127.0.0.1, 213.220.195.171' if client has its own proxy.
+	# We must take the last item ourselves.
+	my $r=$ENV{"HTTP_X_FORWARDED_FOR"} || $W->{"r"}->get_remote_host();
+	$r=~s/^.*,\s*//;
+	return $r;
+}
+
+sub is_cz ()
+{
+	return "CZ" eq Geo::IP->new()->country_code_by_addr(remote_ip());
+}
+
+sub a_href_cz ($$;%)
+{
+my($url,$contents,%args)=@_;
+
+	return a_href $url,$contents,%args if is_cz();
+	return $contents;
+}
+
+sub make ($)
+{
+my($cmd)=@_;
+
+	system {'flock'} 'flock','-x',top_dir_disk(),$cmd.' >&2';
 }
 
 sub img_size ($$)
 {
 my($width,$height)=@_;
 
-	return((1 #$have_style TODO:dyn
-			? "style=\"border:0;width:${width}px;height:${height}px\"" : "border=\"0\"")
-			." width=\"$width\" height=\"$height\"");
+	return ($W->{"have_style"} ? "style=\"border:0;width:${width}px;height:${height}px\"" : "border=\"0\"")
+			." width=\"$width\" height=\"$height\"";
 }
 
-sub img ($$;$)
+sub negotiate_variant (%)
 {
-my($file,$alt,$attrs)=@_;
+my(%args)=@_;
+
+	my @fields=("id","qs","content-type","encoding","charset","lang","size");
+	return [ map(($args{$_}),@fields) ];
+}
 
-	(my $file_det=$file)=~s/[.]mng$/.gif/;
-	my($width,$height)=Image::Size::imgsize($file_det);
+my @img_variants=(
+		{ "id"=>"png","qs"=>1.0,"content-type"=>"image/png" },
+		{ "id"=>"gif","qs"=>0.9,"content-type"=>"image/gif" },
+		);
+my $img_variants_re='[.](?:'.join('|',"jpeg",map(($_->{"id"}),@img_variants)).')$';
+
+sub img_src ($)
+{
+my($file_base)=@_;
+
+	if (!url_is_local($file_base)) {
+		return $file_base if !wantarray();
+		return ($file_base,$file_base);
+		}
+	# Known image extension?
+	if ($file_base=~m#$img_variants_re#o) {
+		return $file_base if !wantarray();
+		return ($file_base,$file_base) if $file_base!~m#^/#;
+		return (top_dir($file_base),top_dir_disk().$file_base);
+		}
+
+	my $file_base_disk;
+	my $file_base_uri;
+	if ($file_base!~m#^/#) {
+		$file_base_disk=$file_base_uri=$file_base;
+		}
+	else {
+		$file_base_disk=top_dir_disk().$file_base;
+		$file_base_uri=top_dir($file_base);
+		}
+
+	my @nego_variants;
+	for my $var (@img_variants) {
+		my $file=$file_base_disk.".".$var->{"id"};
+		# TODO: Somehow quickly check dependencies?
+		make('make -s --no-print-directory'
+						.' -C '."'".File::Basename::dirname($file)."' '".File::Basename::basename($file)."'")
+				if !-f $file;
+		push @nego_variants,negotiate_variant(
+				%$var,
+				"size"=>(stat $file)[7],
+				);
+		}
+	# Do not: ,$W->{"r"});
+	# but should we provide somehow either 'HTTP::Headers' or 'HTTP::Request' ?
+	my $ext=HTTP::Negotiate::choose(\@nego_variants);
+	$ext||=$img_variants[0]->{"id"};	# &HTTP::Negotiate::choose failed?
+
+	return $file_base_uri.".".$ext if !wantarray();
+	return ($file_base_uri.".".$ext,$file_base_disk.".".$ext);
+}
+
+sub img ($$;%)
+{
+my($file_base,$alt,%attr)=@_;
+
+	my($file_uri,$file_disk)=img_src $file_base;
+	my($width,$height)=Image::Size::imgsize($file_disk);
+	$alt=~s/<[^>]*>//g;
 	$alt=CGI::escapeHTML($alt);
-	return("<img src=\"$file\" alt=\"$alt\" title=\"$alt\" ".img_size($width,$height)
-			.(!defined($attrs) ? "" : " ".$attrs)." />");
+	my $content="<img src=\"$file_uri\" alt=\"$alt\" title=\"$alt\" ".img_size($width,$height)
+			.(!$attr{"attr"} ? "" : " ".$attr{"attr"})." />";
+	return a_href img_src($attr{"a_href_img"}),$content if $attr{"a_href_img"};
+	return a_href $attr{"a_href"},$content if $attr{"a_href"};
+	return $content;
+}
+
+sub centerimg
+{
+	my $r.="";
+	$r.='<table border="0" width="100%"><tr>'."\n";
+	@_=( [@_] ) if !ref $_[0];
+	for (@_) {
+		$r.="\t".'<td align="center">'.&{\&img}(@$_).'</td>'."\n";
+		}
+	$r.='</tr></table>'."\n";
+	return $r;
+}
+
+sub rightimg
+{
+my($text,@args_img)=@_;
+
+	# Workaround bug of 'Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)':
+	return <<"HERE";
+<table border="0" width="100%">
+	<col width="@{[ (!$W->{"browser"}->ie() ? "1*" : "90%" ) ]}" />
+	<col width="@{[ (!$W->{"browser"}->ie() ? "0*" : "10%" ) ]}" />
+	<tr>
+		<td align="left">
+			@{[ $text ]}
+		</td>
+		<td align="right">
+			@{[ &{\&img}(@args_img) ]}
+		</td>
+	</tr>
+</table>
+HERE
 }
 
 sub readfile ($$)
@@ -255,37 +563,48 @@ my($class,$filename)=@_;
 	return $data;
 }
 
-sub heading (;$$)
+sub arr_keys (@)
 {
-my($class,$showtitle,$indexme)=@_;
+my(@arr)=@_;
 
-	$showtitle=1 if !defined $showtitle;
-	$indexme=1 if !defined $indexme;
+	my @r=();
+	while (@arr) {
+		push @r,shift @arr;	# key
+		shift @arr;	# val
+		}
+	return @r;
+}
+
+sub heading ()
+{
+my($class)=@_;
+
+	return if $W->{"heading_passed"}++;
 
 	# $ENV{"CLIENT_CHARSET"} ignored (mod_czech support dropped!)
-	my $client_charset=$Args{"force_charset"} || "us-ascii";
-	header("Content-type"=>"text/html; charset=$client_charset");
+	my $client_charset=$W->{"force_charset"} || "us-ascii";
 	header("Content-Style-Type"=>"text/css");
+	header("Content-Script-Type"=>"text/javascript");
 
-	if ($ENV{"SERVER_SOFTWARE"}) {
-		while (my($key,$val)=each(%headers)) {
-			print "$key: $val\n";
-			}
-		print "\n";
+	while (my($key,$val)=each(%{$W->{"headers"}})) {
+		$W->{"r"}->header_out($key,$val);
 		}
+	$W->{"r"}->send_http_header("text/html; charset=$client_charset");	# "Content-type"; do not use header()
 
-	return if $heading_done++;
+	return if $W->{"heading_done"}++;
+	exit if $W->{"r"}->header_only();
 
 	if (1) { # || !$msie_major || $msie_major>=4) # TODO:dyn
 		print '<?xml version="1.0" encoding="'.$client_charset.'"?>'."\n";
 		}
 	print '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">'."\n";
 	print '<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US">'."\n";
-	print '<head><title>'.CGI::escapeHTML($WebConfig{"title_prefix"})
-			.join("",map({ ': '.CGI::escapeHTML($_); } ($WebConfig{"title"} || ())))
-			.'</title>'."\n";
+	my $title=$W->{"title_prefix"}.join("",map({ ': '.$_; } ($W->{"title"} || ())));
+	$title=~s#<[^>]*>##g;
+	print "<head>";
+	print "<title>$title</title>\n";
 
-	if (1) { # || $have_css)	# TODO:dyn
+	if ($W->{"have_css"}) {
 		print <<'HERE';
 <style type="text/css"><!--
 .cvs-id   { font-family: monospace; }
@@ -302,26 +621,27 @@ body {
 :link    { color: aqua;   background-color: transparent; }
 :visited { color: teal;   background-color: transparent; }
 h1,h2    { color: yellow; background-color: transparent; }
+td       { padding: 2px; }
+caption  { caption-side: bottom; }
 .footer img { vertical-align: middle; }
 HERE
-
-# TODO:dyn
-#		if (isset($head_css))
-#			print(trim($head_css)."\n");
+		print $W->{"head_css"}."\n";
 		print "--></style>\n";
 		}
 
-	print '<meta name="robots" content="'.($indexme ? "" : "no" ).'index,follow" />'."\n";
-	print $_ for ($WebConfig{"head"} || ());
+	print '<meta name="robots" content="'.($W->{"indexme"} ? "" : "no" ).'index,follow" />'."\n";
+	print $W->{"head"};
+	for my $type (qw(prev next index contents start up)) {
+		do { print '<link rel="'.$type.'" href="'.$_.'" />'."\n" if $_; } for ($W->{"rel_$type"});
+		}
 	print "</head><body";
-# TODO:dyn
-#	if (isset($mozilla_major) && $mozilla_major==4)
-#		print(" bgcolor=\"black\" text=\"white\" link=\"aqua\" vlink=\"teal\"");
+	print ' bgcolor="black" text="white" link="aqua" vlink="teal"'
+			if $W->{"browser"}->netscape() && $W->{"browser"}->major<=4;
 	print ">\n";
-#	if ($showtitle)
-#		print("<h1 class=\"centered\"><a href=\"/\">"
-#				."Energie & Peníze")
-#				."</a></h1>\n");
+
+	if ($W->{"heading"}) {
+		do { &{$_}() if $_; } for ($W->{"heading"});
+		}
 }
 
 1;
diff --git a/arrow-left.png b/arrow-left.png
new file mode 100644
index 0000000..074552b
Binary files /dev/null and b/arrow-left.png differ
diff --git a/arrow-right.png b/arrow-right.png
new file mode 100644
index 0000000..971d493
Binary files /dev/null and b/arrow-right.png differ
diff --git a/arrow-up.png b/arrow-up.png
new file mode 100644
index 0000000..24c9756
Binary files /dev/null and b/arrow-up.png differ