centreon-plugins/hardware/devices/cisco/ces/restapi/custom/api.pm

254 lines
8.2 KiB
Perl

#
# Copyright 2020 Centreon (http://www.centreon.com/)
#
# Centreon is a full-fledged industry-strength solution that meets
# the needs in IT infrastructure and application monitoring for
# service performance.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
package hardware::devices::cisco::ces::restapi::custom::api;
use base qw(centreon::plugins::mode);
use strict;
use warnings;
use centreon::plugins::http;
use centreon::plugins::statefile;
use XML::Simple;
use Digest::MD5 qw(md5_hex);
sub new {
my ($class, %options) = @_;
my $self = $class->SUPER::new(package => __PACKAGE__, %options);
bless $self, $class;
if (!defined($options{output})) {
print "Class Custom: Need to specify 'output' argument.\n";
exit 3;
}
if (!defined($options{options})) {
$options{output}->add_option_msg(short_msg => "Class Custom: Need to specify 'options' argument.");
$options{output}->option_exit();
}
if (!defined($options{noptions})) {
$options{options}->add_options(arguments => {
'hostname:s' => { name => 'hostname' },
'port:s' => { name => 'port'},
'proto:s' => { name => 'proto' },
'api-username:s' => { name => 'api_username' },
'api-password:s' => { name => 'api_password' },
'timeout:s' => { name => 'timeout', default => 30 },
'no-session' => { name => 'no_session' }
});
}
$options{options}->add_help(package => __PACKAGE__, sections => 'REST API OPTIONS', once => 1);
$self->{output} = $options{output};
$self->{http} = centreon::plugins::http->new(%options);
$self->{cache} = centreon::plugins::statefile->new(%options);
return $self;
}
sub set_options {
my ($self, %options) = @_;
$self->{option_results} = $options{option_results};
}
sub set_defaults {}
sub check_options {
my ($self, %options) = @_;
$self->{hostname} = (defined($self->{option_results}->{hostname})) ? $self->{option_results}->{hostname} : '';
$self->{port} = (defined($self->{option_results}->{port})) ? $self->{option_results}->{port} : 443;
$self->{proto} = (defined($self->{option_results}->{proto})) ? $self->{option_results}->{proto} : 'https';
$self->{timeout} = (defined($self->{option_results}->{timeout})) ? $self->{option_results}->{timeout} : 30;
$self->{api_username} = (defined($self->{option_results}->{api_username})) ? $self->{option_results}->{api_username} : '';
$self->{api_password} = (defined($self->{option_results}->{api_password})) ? $self->{option_results}->{api_password} : '';
$self->{no_session} = (defined($self->{option_results}->{no_session})) ? 1 : 0;
if ($self->{hostname} eq '') {
$self->{output}->add_option_msg(short_msg => "Need to specify --hostname option.");
$self->{output}->option_exit();
}
if ($self->{api_username} eq '') {
$self->{output}->add_option_msg(short_msg => "Need to specify --api-username option.");
$self->{output}->option_exit();
}
if ($self->{api_password} eq '') {
$self->{output}->add_option_msg(short_msg => "Need to specify --api-password option.");
$self->{output}->option_exit();
}
$self->{cache}->check_options(option_results => $self->{option_results}) if ($self->{no_session} == 0);
return 0;
}
sub build_options_for_httplib {
my ($self, %options) = @_;
$self->{option_results}->{hostname} = $self->{hostname};
$self->{option_results}->{port} = $self->{port};
$self->{option_results}->{proto} = $self->{proto};
$self->{option_results}->{timeout} = $self->{timeout};
if ($self->{no_session} == 1) {
$self->{option_results}->{credentials} = 1;
$self->{option_results}->{basic} = 1;
$self->{option_results}->{username} = $self->{api_username};
$self->{option_results}->{password} = $self->{api_password};
}
}
sub settings {
my ($self, %options) = @_;
$self->build_options_for_httplib();
$self->{http}->add_header(key => 'Content-Type', value => 'text/xml');
$self->{http}->add_header(key => 'Accept', value => 'text/xml');
$self->{http}->set_options(%{$self->{option_results}});
}
sub clean_session_cookie {
my ($self, %options) = @_;
my $datas = { last_timestamp => time() };
$options{statefile}->write(data => $datas);
$self->{session_cookie} = undef;
$self->{http}->add_header(key => 'Cookie', value => undef);
}
sub authenticate {
my ($self, %options) = @_;
my $has_cache_file = $options{statefile}->read(statefile => 'cces_api_' . md5_hex($self->{option_results}->{hostname}) . '_' . md5_hex($self->{option_results}->{api_username}));
my $session_cookie = $options{statefile}->get(name => 'session_cookie');
if ($has_cache_file == 0 || !defined($session_cookie)) {
my $content = $self->{http}->request(
method => 'POST',
url_path => '/xmlapi/session/begin',
credentials => 1, basic => 1,
username => $self->{api_username},
password => $self->{api_password},
warning_status => '', unknown_status => '', critical_status => '',
curl_backend_options => { header => ['Content-Length: 0'] },
);
if ($self->{http}->get_code() < 200 || $self->{http}->get_code() >= 300) {
$self->{output}->add_option_msg(short_msg => "Login error [code: '" . $self->{http}->get_code() . "'] [message: '" . $self->{http}->get_message() . "']");
$self->{output}->option_exit();
}
($session_cookie) = $self->{http}->get_header(name => 'Set-Cookie');
if (!defined($session_cookie)) {
$self->{output}->add_option_msg(short_msg => "Error retrieving cookie");
$self->{output}->option_exit();
}
my $datas = { last_timestamp => time(), session_cookie => $session_cookie };
$options{statefile}->write(data => $datas);
}
$self->{session_cookie} = $session_cookie;
$self->{http}->add_header(key => 'Cookie', value => $self->{session_cookie});
}
sub request_api {
my ($self, %options) = @_;
$self->settings();
if ($self->{no_session} == 0 && !defined($self->{session_cookie})) {
$self->authenticate(statefile => $self->{cache});
}
my $content = $self->{http}->request(
%options,
warning_status => '', unknown_status => '', critical_status => ''
);
# Maybe there is an issue with the session_cookie. So we retry.
if ($self->{no_session} == 0 && ($self->{http}->get_code() < 200 || $self->{http}->get_code() >= 300)) {
$self->clean_session_cookie(statefile => $self->{cache});
$self->authenticate(statefile => $self->{cache});
$content = $self->{http}->request(
%options,
warning_status => '', unknown_status => '', critical_status => ''
);
}
if ($self->{http}->get_code() < 200 || $self->{http}->get_code() >= 300) {
$self->{output}->add_option_msg(short_msg => 'api request error. use --debug.');
$self->{output}->option_exit();
}
my $result;
eval {
$result = XMLin($content, ForceArray => $options{ForceArray}, KeyAttr => []);
};
if ($@) {
$self->{output}->add_option_msg(short_msg => "Cannot decode xml response: $@");
$self->{output}->option_exit();
}
return $result;
}
1;
__END__
=head1 NAME
CCES Rest API
=head1 REST API OPTIONS
=over 8
=item B<--hostname>
Set hostname.
=item B<--port>
Set port (Default: '443').
=item B<--proto>
Specify https if needed (Default: 'https').
=item B<--api-username>
Set username.
=item B<--api-password>
Set password.
=item B<--timeout>
Threshold for HTTP timeout (Default: '30').
=item B<--no-session>
To be used for legacy version (before CE 8.0).
=back
=cut