--- /dev/null
+#!/usr/bin/perl
+
+# Copyright (C) 2008 Florian octo Forster <octo at verplant.org>
+#
+# 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; only version 2 of the License is applicable.
+#
+# 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.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+
+use strict;
+use warnings;
+use lib ('../lib');
+use utf8;
+
+use FindBin ('$RealBin');
+use CGI (':cgi');
+use CGI::Carp ('fatalsToBrowser');
+use HTML::Entities ('encode_entities');
+
+use Data::Dumper;
+
+use Collectd::Graph::TypeLoader (qw(tl_read_config tl_load_type));
+use Collectd::Graph::Common (qw(get_files_from_directory get_all_hosts
+ get_timespan_selection get_selected_files get_host_selection
+ get_plugin_selection));
+use Collectd::Graph::Type ();
+
+our $Debug = param ('debug') ? 1 : 0;
+
+our $TimeSpans =
+{
+ Hour => 3600,
+ Day => 86400,
+ Week => 7 * 86400,
+ Month => 31 * 86400,
+ Year => 366 * 86400
+};
+
+my $action = param ('action') || 'list_hosts';
+our %Actions =
+(
+ list_hosts => \&action_list_hosts,
+ show_selection => \&action_show_selection
+);
+
+if (!exists ($Actions{$action}))
+{
+ print STDERR "No such action: $action\n";
+ exit 1;
+}
+
+tl_read_config ("$RealBin/../etc/collection3.conf");
+
+$Actions{$action}->();
+exit (0);
+
+sub can_handle_xhtml
+{
+ my %types = ();
+
+ if (!defined $ENV{'HTTP_ACCEPT'})
+ {
+ return;
+ }
+
+ for (split (',', $ENV{'HTTP_ACCEPT'}))
+ {
+ my $type = lc ($_);
+ my $q = 1.0;
+
+ if ($type =~ m#^([^;]+);q=([0-9\.]+)$#)
+ {
+ $type = $1;
+ $q = 0.0 + $2;
+ }
+ $types{$type} = $q;
+ }
+
+ if (!defined ($types{'application/xhtml+xml'}))
+ {
+ return;
+ }
+ elsif (!defined ($types{'text/html'}))
+ {
+ return (1);
+ }
+ elsif ($types{'application/xhtml+xml'} < $types{'text/html'})
+ {
+ return;
+ }
+ else
+ {
+ return (1);
+ }
+} # can_handle_xhtml
+
+{my $html_started;
+sub start_html
+{
+ return if ($html_started);
+
+ if (can_handle_xhtml ())
+ {
+ print <<HTML;
+Content-Type: application/xhtml+xml; charset=UTF-8
+
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN"
+ "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml"
+ xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+ xsi:schemaLocation="http://www.w3.org/MarkUp/SCHEMA/xhtml11.xsd"
+ xml:lang="en">
+HTML
+ }
+ else
+ {
+ print <<HTML;
+Content-Type: text/html; charset=UTF-8
+
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"
+ "http://www.w3.org/TR/html4/strict.dtd">
+<html>
+HTML
+ }
+ print <<HTML;
+ <head>
+ <title>collection.cgi, Version 3</title>
+ <link rel="icon" href="../share/shortcut-icon.png" type="image/png" />
+ <link rel="stylesheet" href="../share/style.css" type="text/css" />
+ </head>
+ <body>
+HTML
+ $html_started = 1;
+}}
+
+sub end_html
+{
+ print <<HTML;
+ </body>
+</html>
+HTML
+}
+
+sub show_selector
+{
+ my $timespan_selection = get_timespan_selection ();
+ my $host_selection = get_host_selection ();
+ my $plugin_selection = get_plugin_selection ();
+
+ print <<HTML;
+ <form action="${\script_name ()}" method="get">
+ <fieldset>
+ <legend>Data selection</legend>
+ <select name="hostname" multiple="multiple" size="15">
+HTML
+ for (sort (keys %$host_selection))
+ {
+ my $host = encode_entities ($_);
+ my $selected = $host_selection->{$_}
+ ? ' selected="selected"'
+ : '';
+ print qq# <option value="$host"$selected>$host</option>\n#;
+ }
+ print <<HTML;
+ </select>
+ <select name="plugin" multiple="multiple" size="15">
+HTML
+ for (sort (keys %$plugin_selection))
+ {
+ my $plugin = encode_entities ($_);
+ my $selected = $plugin_selection->{$_}
+ ? ' selected="selected"'
+ : '';
+ print qq# <option value="$plugin"$selected>$plugin</option>\n#;
+ }
+ print <<HTML;
+ </select>
+ <select name="timespan">
+HTML
+ for (sort { $TimeSpans->{$a} <=> $TimeSpans->{$b} } (keys (%$TimeSpans)))
+ {
+ my $name = encode_entities ($_);
+ my $value = $TimeSpans->{$_};
+ my $selected = ($value == $timespan_selection)
+ ? ' selected="selected"'
+ : '';
+ print qq# <option value="$value"$selected>$name</option>\n#;
+ }
+ print <<HTML;
+ </select>
+ <input type="hidden" name="action" value="show_selection" />
+ <input type="submit" name="ok_button" value="OK" />
+ </fieldset>
+ </form>
+HTML
+} # show_selector
+
+sub action_list_hosts
+{
+ start_html ();
+ show_selector ();
+
+ my @hosts = get_all_hosts ();
+ print " <ul>\n";
+ for (sort @hosts)
+ {
+ my $url = encode_entities (script_name () . "?action=show_selection;hostname=$_");
+ my $name = encode_entities ($_);
+ print qq# <li><a href="$url">$name</a></li>\n#;
+ }
+ print " </ul>\n";
+
+ end_html ();
+} # action_list_hosts
+
+=head1 MODULE LOADING
+
+This script makes use of the various B<Collectd::Graph::Type::*> modules. If a
+file like C<foo.rrd> is encountered it tries to load the
+B<Collectd::Graph::Type::Foo> module and, if that fails, falls back to the
+B<Collectd::Graph::Type> base class.
+
+If you want to create a specialized graph for a certain type, you have to
+create a new module which inherits from the B<Collectd::Graph::Type> base
+class. A description of provided (and used) methods can be found in the inline
+documentation of the B<Collectd::Graph::Type> module.
+
+There are other, more specialized, "abstract" classes that possibly better fit
+your need. Unfortunately they are not yet documented.
+
+=over 4
+
+=item B<Collectd::Graph::Type::GenericStacked>
+
+Specialized class that groups files by their plugin instance and stacks them on
+top of each other. Example types that inherit from this class are
+B<Collectd::Graph::Type::Cpu> and B<Collectd::Graph::Type::Memory>.
+
+=item B<Collectd::Graph::Type::GenericIO>
+
+Specialized class for input/output graphs. This class can only handle files
+with exactly two data sources, input and output. Example types that inherit
+from this class are B<Collectd::Graph::Type::DiskOctets> and
+B<Collectd::Graph::Type::IfOctets>.
+
+=back
+
+=cut
+
+sub action_show_selection
+{
+ start_html ();
+ show_selector ();
+
+ my $ident = {};
+
+ my $all_files;
+ my $types = {};
+
+ $all_files = get_selected_files ();
+
+ if ($Debug)
+ {
+ print "<pre>", Data::Dumper->Dump ([$all_files], ['all_files']), "</pre>\n";
+ }
+
+ for (@$all_files)
+ {
+ my $file = $_;
+ my $type = ucfirst (lc ($file->{'type'}));
+
+ $type =~ s/[^A-Za-z_]//g;
+ $type =~ s/_([A-Za-z])/\U$1\E/g;
+
+ if (!defined ($types->{$type}))
+ {
+ $types->{$type} = tl_load_type ($file->{'type'});
+ if (!$types->{$type})
+ {
+ cluck ("tl_load_type (" . $file->{'type'} . ") failed");
+ next;
+ }
+ }
+
+ $types->{$type}->addFiles ($file);
+ }
+#print STDOUT Data::Dumper->Dump ([$types], ['types']);
+
+ print qq# <table>\n#;
+ for (sort (keys %$types))
+ {
+ my $type = $_;
+ my $graphs_num = $types->{$type}->getGraphsNum ();
+
+ my $timespan = get_timespan_selection ();
+
+ for (my $i = 0; $i < $graphs_num; $i++)
+ {
+ my $args = $types->{$type}->getGraphArgs ($i);
+ my $url = encode_entities ("graph.cgi?$args;begin=-$timespan");
+
+ print " <tr>\n";
+ print " <td rowspan=\"$graphs_num\">$type</td>\n" if ($i == 0);
+
+ print qq# <td><img src="$url" /></td>\n#;
+ print " </tr>\n";
+ }
+ }
+
+ print " </table>\n";
+ end_html ();
+}
+
+=head1 SEE ALSO
+
+L<Collectd::Graph::Type>
+
+=head1 AUTHOR AND LICENSE
+
+Copyright (c) 2008 by Florian Forster
+E<lt>octoE<nbsp>atE<nbsp>verplant.orgE<gt>. Licensed under the terms of the GNU
+General Public License, VersionE<nbsp>2 (GPLv2).
+
+=cut
+
+# vim: set shiftwidth=2 softtabstop=2 tabstop=8 :
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