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zoneminder/scripts/ZoneMinder/lib/ZoneMinder/Control.pm

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Perl
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# ==========================================================================
#
# ZoneMinder Base Control Module
# Copyright (C) 2001-2008 Philip Coombes
#
# 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; either version 2
# of the License, or (at your option) any later version.
#
# 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.
#
# ==========================================================================
#
# This module contains the base class definitions for the camera control
# protocol implementations
#
package ZoneMinder::Control;
use 5.006;
use strict;
use warnings;
require ZoneMinder::Base;
require ZoneMinder::Object;
require ZoneMinder::Monitor;
our $VERSION = $ZoneMinder::Base::VERSION;
# ==========================================================================
#
# Base control class
#
# ==========================================================================
use ZoneMinder::Logger qw(:all);
use ZoneMinder::Database qw(:all);
use parent qw(ZoneMinder::Object);
use vars qw/ $table $primary_key %fields $serial %defaults $debug/;
$table = 'Controls';
$serial = $primary_key = 'Id';
%fields = map { $_ => $_ } qw(
Id
Name
Type
Protocol
CanWake
CanSleep
CanReset
CanReboot
CanZoom
CanAutoZoom
CanZoomAbs
CanZoomRel
CanZoomCon
MinZoomRange
MaxZoomRange
MinZoomStep
MaxZoomStep
HasZoomSpeed
MinZoomSpeed
MaxZoomSpeed
CanFocus
CanAutoFocus
CanFocusAbs
CanFocusRel
CanFocusCon
MinFocusRange
MaxFocusRange
MinFocusStep
MaxFocusStep
HasFocusSpeed
MinFocusSpeed
MaxFocusSpeed
CanIris
CanAutoIris
CanIrisAbs
CanIrisRel
CanIrisCon
MinIrisRange
MaxIrisRange
MinIrisStep
MaxIrisStep
HasIrisSpeed
MinIrisSpeed
MaxIrisSpeed
CanGain
CanAutoGain
CanGainAbs
CanGainRel
CanGainCon
MinGainRange
MaxGainRange
MinGainStep
MaxGainStep
HasGainSpeed
MinGainSpeed
MaxGainSpeed
CanWhite
CanAutoWhite
CanWhiteAbs
CanWhiteRel
CanWhiteCon
MinWhiteRange
MaxWhiteRange
MinWhiteStep
MaxWhiteStep
HasWhiteSpeed
MinWhiteSpeed
MaxWhiteSpeed
HasPresets
NumPresets
HasHomePreset
CanSetPresets
CanMove
CanMoveDiag
CanMoveMap
CanMoveAbs
CanMoveRel
CanMoveCon
CanPan
MinPanRange
MaxPanRange
MinPanStep
MaxPanStep
HasPanSpeed
MinPanSpeed
MaxPanSpeed
HasTurboPan
TurboPanSpeed
CanTilt
MinTiltRange
MaxTiltRange
MinTiltStep
MaxTiltStep
HasTiltSpeed
MinTiltSpeed
MaxTiltSpeed
HasTurboTilt
TurboTiltSpeed
CanAutoScan
NumScanPaths
);
%defaults = (
Name => '',
Type => q`'Ffmpeg'`,
CanWake => '0',
CanSleep => '0',
CanReset => '0',
CanReboot => '0',
CanZoom => '0',
CanAutoZoom => '0',
CanZoomAbs => '0',
CanZoomRel =>'0',
CanZoomCon => '0',
MinZoomRange => undef,
MaxZoomRange => undef,
MinZoomStep => undef,
MaxZoomStep => undef,
HasZoomSpeed => 0,
MinZoomSpeed => 0,
MaxZoomSpeed => 0,
CanFocus => 0,
CanAutoFocus => 0,
CanFocusAbs => 0,
CanFocusRel => 0,
CanFocusCon => 0,
MinFocusRange => undef,
MaxFocusRange => undef,
MinFocusStep => undef,
MaxFocusStep => undef,
HasFocusSpeed => 0,
MinFocusSpeed => undef,
MaxFocusSpeed => undef,
CanIris => 0,
CanAutoIris => 0,
CanIrisAbs=> 0,
CanIrisRel => 0,
CanIrisCon => 0,
MinIrisRange => undef,
MaxIrisRange => undef,
MinIrisStep => undef,
MaxIrisStep => undef,
HasIrisSpeed => 0,
MinIrisSpeed => undef,
MaxIrisSpeed => undef,
CanGain => 0,
CanAutoGain => 0,
CanGainAbs => 0,
CanGainRel => 0,
CanGainCon => 0,
MinGainRange => undef,
MaxGainRange => undef,
MinGainStep => undef,
MaxGainStep => undef,
HasGainSpeed => 0,
MinGainSpeed => undef,
MaxGainSpeed => undef,
CanWhite => 0,
CanAutoWhite => 0,
CanWhiteAbs => 0,
CanWhiteRel => 0,
CanWhiteCon => 0,
MinWhiteRange => undef,
MaxWhiteRange => undef,
MinWhiteStep => undef,
MaxWhiteStep => undef,
HasWhiteSpeed => 0,
MinWhiteSpeed => undef,
MaxWhiteSpeed => undef,
HasPresets => 0,
NumPresets => 0,
HasHomePreset => 0,
CanSetPresets => 0,
CanMove => 0,
CanMoveDiag => 0,
CanMoveMap => 0,
CanMoveAbs => 0,
CanMoveRel => 0,
CanMoveCon => 0,
CanPan => 0,
MinPanRange => undef,
MaxPanRange => undef,
MinPanStep => undef,
MaxPanStep => undef,
HasPanSpeed => 0,
MinPanSpeed => undef,
MaxPanSpeed => undef,
HasTurboPan => 0,
TurboPanSpeed => undef,
CanTilt => 0,
MinTiltRange => undef,
MaxTiltRange => undef,
MinTiltStep => undef,
MaxTiltStep => undef,
HasTiltSpeed => 0,
MinTiltSpeed => undef,
MaxTiltSpeed => undef,
HasTurboTilt => 0,
TurboTiltSpeed => undef,
CanAutoScan => 0,
NumScanPaths => 0,
);
our $AUTOLOAD;
sub AUTOLOAD {
my $self = shift;
my $class = ref($self);
if ( !$class ) {
my ( $caller, undef, $line ) = caller;
Fatal("$self not object from $caller:$line");
}
my $name = $AUTOLOAD;
$name =~ s/.*://;
if ( exists($self->{$name}) ) {
return $self->{$name};
}
my ( $caller, undef, $line ) = caller;
Error("Can't access name:$name AUTOLOAD:$AUTOLOAD member of object of class $class from $caller:$line");
}
sub getKey {
my $self = shift;
return $self->{Id};
}
sub open {
my $self = shift;
Fatal('No open method defined for protocol '.$self->{Protocol});
}
sub close {
my $self = shift;
$self->{state} = 'closed';
Debug('No close method defined for protocol '.$self->{Protocol});
}
sub loadMonitor {
my $self = shift;
if ( !$self->{Monitor} ) {
if ( !($self->{Monitor} = ZoneMinder::Monitor->find_one(Id=>$self->{MonitorId})) ) {
Fatal('Monitor id '.$self->{id}.' not found');
}
if ( defined($self->{Monitor}->{AutoStopTimeout}) ) {
# Convert to microseconds.
$self->{Monitor}->{AutoStopTimeout} = int(1000000*$self->{Monitor}->{AutoStopTimeout});
}
}
}
sub getParam {
my $self = shift;
my $params = shift;
my $name = shift;
my $default = shift;
if ( defined($params->{$name}) ) {
return $params->{$name};
} elsif ( defined($default) ) {
return $default;
}
Error("Missing mandatory parameter '$name'");
}
sub executeCommand {
my $self = shift;
my $params = shift;
$self->loadMonitor();
my $command = $params->{command};
delete $params->{command};
#if ( !defined($self->{$command}) )
#{
#Fatal( "Unsupported command '$command'" );
#}
&{$self->{$command}}($self, $params);
}
# Uses LWP get command and adds debugging
# if $$self{BaseURL} is defined then it will be prepended
sub get {
my $self = shift;
my $url = shift;
if (!$url) {
Error('No url specified in get');
return;
}
$url = $$self{BaseURL}.'/'.$url if $$self{BaseURL};
my $response = $self->{ua}->get($url);
Debug("Response from $url: ". $response->status_line . ' ' . $response->content);
return $response;
}
sub put {
my $self = shift;
my $url = shift;
if (!$url) {
Error('No url specified in put');
return;
}
$url = $$self{BaseURL}.'/'.$url if $$self{BaseURL};
my $req = HTTP::Request->new(PUT => $url);
my $content = shift;
if ( defined($content) ) {
$req->content_type('application/x-www-form-urlencoded; charset=UTF-8');
$req->content($content);
}
my $res = $self->{ua}->request($req);
if (!$res->is_success) {
Error($res->status_line);
} # end unless res->is_success
Debug('Response: '. $res->status_line . ' ' . $res->content);
return $res;
} # end sub put
sub printMsg {
my $self = shift;
my $msg = shift;
my $msg_len = length($msg);
Debug($msg.'['.$msg_len.']');
}
sub credentials {
my $self = shift;
@$self{'username', 'password'} = @_;
}
sub get_realm {
my $self = shift;
my $url = shift;
my $response = $self->get($url);
return 1 if $response->is_success();
if ($response->status_line() eq '401 Unauthorized' and defined $$self{username}) {
my $headers = $response->headers();
foreach my $k ( keys %$headers ) {
Debug("Initial Header $k => $$headers{$k}");
}
if ( $$headers{'www-authenticate'} ) {
foreach my $auth_header ( ref $$headers{'www-authenticate'} eq 'ARRAY' ? @{$$headers{'www-authenticate'}} : ($$headers{'www-authenticate'})) {
my ( $auth, $tokens ) = $auth_header =~ /^(\w+)\s+(.*)$/;
my %tokens = map { /(\w+)="?([^"]+)"?/i } split(', ', $tokens );
if ( $tokens{realm} ) {
if ( $$self{realm} ne $tokens{realm} ) {
$$self{realm} = $tokens{realm};
Debug("Changing REALM to $$self{realm}, $$self{host}:$$self{port}, $$self{realm}, $$self{username}, $$self{password}");
$self->{ua}->credentials("$$self{host}:$$self{port}", $$self{realm}, $$self{username}, $$self{password});
$response = $self->get($url);
if ( !$response->is_success() ) {
Debug('Authentication still failed after updating REALM' . $response->status_line);
$headers = $response->headers();
foreach my $k ( keys %$headers ) {
Debug("Initial Header $k => $$headers{$k}\n");
} # end foreach
} else {
return 1;
}
} else {
Error('Authentication failed, not a REALM problem');
}
} else {
Debug('Failed to match realm in tokens');
} # end if
} # end foreach auth header
} else {
debug('No headers line');
} # end if headers
} # end if not authen
} # end sub get_realm
1;
__END__
=head1 NAME
ZoneMinder::Control - Parent class defining Control API
=head1 SYNOPSIS
use ZoneMinder::Control;
This should be used as the parent class for packages implementing control
apis for various cameras.
=head1 DESCRIPTION
=head2 EXPORT
None by default.
=head1 AUTHOR
Philip Coombes, E<lt>philip.coombes@zoneminder.comE<gt>
=head1 COPYRIGHT AND LICENSE
Copyright (C) 2001-2008 Philip Coombes
This library is free software; you can redistribute it and/or modify
it under the same terms as Perl itself, either Perl version 5.8.3 or,
at your option, any later version of Perl 5 you may have available.
=cut
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