#!/usr/bin/perl -w
# BEGIN BPS TAGGED BLOCK {{{
#
# COPYRIGHT:
#
# This software is Copyright (c) 1996-2014 Best Practical Solutions, LLC
#                                          <sales@bestpractical.com>
#
# (Except where explicitly superseded by other copyright notices)
#
#
# LICENSE:
#
# This work is made available to you under the terms of Version 2 of
# the GNU General Public License. A copy of that license should have
# been provided with this software, but in any event can be snarfed
# from www.gnu.org.
#
# This work 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 or visit their web page on the internet at
# http://www.gnu.org/licenses/old-licenses/gpl-2.0.html.
#
#
# CONTRIBUTION SUBMISSION POLICY:
#
# (The following paragraph is not intended to limit the rights granted
# to you to modify and distribute this software under the terms of
# the GNU General Public License and is only of importance to you if
# you choose to contribute your changes and enhancements to the
# community by submitting them to Best Practical Solutions, LLC.)
#
# By intentionally submitting any modifications, corrections or
# derivatives to this work, or any other work intended for use with
# Request Tracker, to Best Practical Solutions, LLC, you confirm that
# you are the copyright holder for those contributions and you grant
# Best Practical Solutions,  LLC a nonexclusive, worldwide, irrevocable,
# royalty-free, perpetual, license to use, copy, create derivative
# works based on those contributions, and sublicense and distribute
# those contributions and any derivatives thereof.
#
# END BPS TAGGED BLOCK }}}
use strict;
use warnings;

# As we specify that XML is UTF-8 and we output it to STDOUT, we must be sure
# it is UTF-8 so further XMLin will not break
binmode( STDOUT, ":utf8" );

# fix lib paths, some may be relative
BEGIN {
    require File::Spec;
    my @libs = ( "lib", "local/lib" );
    my $bin_path;

    for my $lib (@libs) {
        unless ( File::Spec->file_name_is_absolute($lib) ) {
            unless ($bin_path) {
                if ( File::Spec->file_name_is_absolute(__FILE__) ) {
                    $bin_path = ( File::Spec->splitpath(__FILE__) )[1];
                } else {
                    require FindBin;
                    no warnings "once";
                    $bin_path = $FindBin::Bin;
                }
            }
            $lib = File::Spec->catfile( $bin_path, File::Spec->updir, $lib );
        }
        unshift @INC, $lib;
    }

}

use Getopt::Long;
my %opt;
GetOptions( \%opt, "help|h",
    "limit-to-privileged|l",
    "skip-disabled|s",
    "all|a",
);

if ( $opt{help} ) {
    require Pod::Usage;
    Pod::Usage::pod2usage( { verbose => 2 } );
    exit;
}

require RT;
require XML::Simple;

RT::LoadConfig();
RT::Init();

my %RV;
my %Ignore = (
    All => [
        qw(
            id Created Creator LastUpdated LastUpdatedBy
            )
           ],
    Templates => [
        qw(
            TranslationOf
            )
    ],
);

my $SystemUserId = RT->SystemUser->Id;
my @classes      = qw(
    Users Groups Queues ScripActions ScripConditions
    Templates Scrips ACL CustomFields
    );
foreach my $class (@classes) {
    require "RT/$class.pm";
    my $objects = "RT::$class"->new( RT->SystemUser );
    $objects->{find_disabled_rows} = 1 unless $opt{'skip-disabled'};
    $objects->UnLimit;
    $objects->LimitToPrivileged if $class eq 'Users'
        && $opt{'limit-to-privileged'};
    $objects->Limit(
        FIELD    => 'Domain',
        OPERATOR => '=',
        VALUE    => 'UserDefined'
    ) if $class eq 'Groups';

    if ( $class eq 'CustomFields' ) {
        $objects->OrderByCols(
            { FIELD => 'LookupType' },
            { FIELD => 'SortOrder' },
            { FIELD => 'Id' },
        );
    } else {
        $objects->OrderBy( FIELD => 'Id' );
    }

    unless ($opt{all}) {
        next if $class eq 'ACL';    # XXX - would go into infinite loop - XXX
        $objects->Limit(
            FIELD    => 'LastUpdatedBy',
            OPERATOR => '!=',
            VALUE    => $SystemUserId
        ) unless $class eq 'Groups';
        $objects->Limit(
            FIELD    => 'Id',
            OPERATOR => '!=',
            VALUE    => $SystemUserId
        ) if $class eq 'Users';
    }

    my %fields;
OBJECT:
    while ( my $obj = $objects->Next ) {
        next
            if $obj->can('LastUpdatedBy')
                and $obj->LastUpdatedBy == $SystemUserId;

        if ( !%fields ) {
            %fields = map { $_ => 1 } keys %{ $obj->_ClassAccessible };
            delete @fields{ @{ $Ignore{$class} ||= [] },
                @{ $Ignore{All} ||= [] }, };
        }

        my $rv;

        if ( $class ne 'ACL' ) {
            # next if $obj-> # skip default names
            foreach my $field ( sort keys %fields ) {
                my $value = $obj->__Value($field);
                $rv->{$field} = $value if ( defined($value) && length($value) );
            }
            delete $rv->{Disabled} unless $rv->{Disabled};

            foreach my $record ( map { /ACL/ ? 'ACE' : substr( $_, 0, -1 ) }
                @classes )
            {
                foreach my $key ( map "$record$_", ( '', 'Id' ) ) {
                    next unless exists $rv->{$key};
                    my $id = $rv->{$key} or next;
                    my $obj = "RT::$record"->new( RT->SystemUser );
                    $obj->LoadByCols( Id => $id ) or next;
                    $rv->{$key} = $obj->__Value('Name') || 0;
                }
            }

            if ( $class eq 'Users' and defined $obj->Privileged ) {
                $rv->{Privileged} = int( $obj->Privileged );
            } elsif ( $class eq 'CustomFields' ) {
                my $values = $obj->Values;
                while ( my $value = $values->Next ) {
                    push @{ $rv->{Values} }, {
                        map { ( $_ => $value->__Value($_) ) }
                            qw(
                            Name Description SortOrder
                            ),
                    };
                }
                if ( $obj->LookupType eq 'RT::Queue-RT::Ticket' ) {
                    # XXX-TODO: unused CF's turn into global CF when importing
                    # as the sub InsertData in RT::Handle creates a global CF
                    # when no queue is specified.
                    $rv->{Queue} = [];
                    my $applies = $obj->AppliedTo;
                    while ( my $queue = $applies->Next ) {
                        push @{ $rv->{Queue} }, $queue->Name;
                    }
                }
            }
        }
        else {
            # 1) pick the right
            $rv->{Right} = $obj->RightName;

            # 2) Pick a level: Granted on Queue, CF, CF+Queue, or Globally?
            for ( $obj->ObjectType ) {
                if ( /^RT::Queue$/ ) {
                    next OBJECT if $opt{'skip-disabled'} && $obj->Object->Disabled;
                    $rv->{Queue} = $obj->Object->Name;
                }
                elsif ( /^RT::CustomField$/ ) {
                    next OBJECT if $opt{'skip-disabled'} && $obj->Object->Disabled;
                    $rv->{CF} = $obj->Object->Name;
                }
                elsif ( /^RT::Group$/ ) {
                    # No support for RT::Group ACLs in RT::Handle yet.
                    next OBJECT;
                }
                elsif ( /^RT::System$/ ) {
                    # skip setting anything on $rv;
                    # "Specifying none of the above will get you a global right."
                }
            }

            # 3) Pick a Principal; User or Group or Role
            if ( $obj->PrincipalType eq 'Group' ) {
                next OBJECT if $opt{'skip-disabled'} && $obj->PrincipalObj->Disabled;
                my $group = $obj->PrincipalObj->Object;
                for ( $group->Domain ) {
                    # An internal user group
                    if ( /^SystemInternal$/ ) {
                        $rv->{GroupDomain} = $group->Domain;
                        $rv->{GroupType} = $group->Type;
                    }
                    # An individual user
                    elsif ( /^ACLEquivalence$/ ) {
                        my $member = $group->MembersObj->Next->MemberObj;
                        next OBJECT if $opt{'skip-disabled'} && $member->Disabled;
                        $rv->{UserId} = $member->Object->Name;
                    }
                    # A group you created
                    elsif ( /^UserDefined$/ ) {
                        $rv->{GroupDomain} = 'UserDefined';
                        $rv->{GroupId} = $group->Name;
                    }
                }
            } else {
                $rv->{GroupType} = $obj->PrincipalType;
                # A system-level role
                if ( $obj->ObjectType eq 'RT::System' ) {
                    $rv->{GroupDomain} = 'RT::System-Role';
                }
                # A queue-level role
                elsif ( $obj->ObjectType eq 'RT::Queue' ) {
                    $rv->{GroupDomain} = 'RT::Queue-Role';
                }
            }
            if ( $obj->LookupType eq 'RT::Queue-RT::Ticket' ) {
                # XXX-TODO: unused CF's turn into global CF when importing
                # as the sub InsertData in RT::Handle creates a global CF
                # when no queue is specified.
                $rv->{Queue} = [];
                my $applies = $obj->AppliedTo;
                while ( my $queue = $applies->Next ) {
                    push @{ $rv->{Queue} }, $queue->Name;
                }
            }
        }

        if ( eval { require RT::Attributes; 1 } ) {
            my $attributes = $obj->Attributes;
            while ( my $attribute = $attributes->Next ) {
                my $content = $attribute->Content;
                if ( $class eq 'Users' and $attribute->Name eq 'Bookmarks' ) {
                    next;
                }
                $rv->{Attributes}{ $attribute->Name } = $content
                    if length($content);
            }
        }

        push @{ $RV{$class} }, $rv;
    }
}

print(<< ".");
no strict; use XML::Simple; *_ = XMLin(do { local \$/; readline(DATA) }, ForceArray => [qw(
 @classes Values
)], NoAttr => 1, SuppressEmpty => ''); *\$_ = (\$_{\$_} || []) for keys \%_; 1; # vim: ft=xml
__DATA__
.

print XML::Simple::XMLout(
    { map { ( $_ => ( $RV{$_} || [] ) ) } @classes },
    RootName      => 'InitialData',
    NoAttr        => 1,
    SuppressEmpty => '',
    XMLDecl       => '<?xml version="1.0" encoding="UTF-8"?>',
);

__END__

=head1 NAME

rt-dump-metadata - dump configuration metadata from an RT database

=head1 SYNOPSIS

    rt-dump-metdata [--all]

=head1 DESCRIPTION

C<rt-dump-metadata> is a tool that dumps configuration metadata from the
Request Tracker database into XML format, suitable for feeding into
C<rt-setup-database>. To dump and load a full RT database, you should generally
use the native database tools instead, as well as performing any necessary
steps from UPGRADING.

This is NOT a tool for backing up an RT database.  See also
L<docs/initialdata> for more straightforward means of importing data.

=head1 OPTIONS

=over

=item C<--all> or C<-a>

When run with C<--all>, the dump will include all configuration
metadata; otherwise, the metadata dump will only include 'local'
configuration changes, i.e. those done manually in the web interface.

=item C<--limit-to-privileged> or C<-l>

Causes the dumper to only dump privileged users.

=item C<--skip-disabled> or C<-s>

Ignores disabled rows in the database.

=back

=cut

