centreon-plugins/hardware/server/hp/oneview/restapi/custom/api.pm

289 lines
9.0 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::server::hp::oneview::restapi::custom::api;
use base qw(centreon::plugins::mode);
use strict;
use warnings;
use centreon::plugins::http;
use centreon::plugins::statefile;
use JSON::XS;
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' },
'api-domain:s' => { name => 'api_domain' },
'timeout:s' => { name => 'timeout', default => 30 }
});
}
$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} : undef;
$self->{port} = (defined($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->{api_domain} = $self->{option_results}->{api_domain};
if ($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 => $self->{option_results});
return 0;
}
sub build_options_for_httplib {
my ($self, %options) = @_;
$self->{option_results}->{hostname} = $self->{hostname};
$self->{option_results}->{port} = $self->{port};
$self->{option_results}->{proto} = $self->{proto};
$self->{option_results}->{timeout} = $self->{timeout};
}
sub settings {
my ($self, %options) = @_;
$self->build_options_for_httplib();
$self->{http}->add_header(key => 'Content-Type', value => 'application/json;charset=UTF-8');
$self->{http}->add_header(key => 'Accept', value => 'application/json;charset=UTF-8');
if (defined($self->{session_id})) {
$self->{http}->add_header(key => 'Auth', value => $self->{session_id});
}
$self->{http}->set_options(%{$self->{option_results}});
}
sub json_decode {
my ($self, %options) = @_;
my $decoded;
eval {
$decoded = JSON::XS->new->utf8->decode($options{content});
};
if ($@) {
$self->{output}->add_option_msg(short_msg => "Cannot decode json response: $@");
$self->{output}->option_exit();
}
return $decoded;
}
sub clean_session_id {
my ($self, %options) = @_;
my $datas = { last_timestamp => time() };
$self->{cache}->write(data => $datas);
$self->{session_id} = undef;
}
sub decode_api_response {
my ($self, %options) = @_;
my $decoded = $self->json_decode(content => $options{content});
if (!defined($decoded)) {
$self->{output}->add_option_msg(short_msg => "Error while retrieving data (add --debug option for detailed message)");
$self->{output}->option_exit();
}
if (defined($decoded->{errorCode})) {
$self->clean_session_id();
$self->{output}->add_option_msg(short_msg => 'api error: ' . $decoded->{message});
$self->{output}->option_exit();
}
return $decoded;
}
sub authenticate {
my ($self, %options) = @_;
my $has_cache_file = $self->{cache}->read(statefile => 'hp_oneview_' . md5_hex($self->{option_results}->{hostname}) . '_' . md5_hex($self->{option_results}->{api_username}));
my $session_id = $self->{cache}->get(name => 'session_id');
if ($has_cache_file == 0 || !defined($session_id)) {
my $json_request = { userName => $self->{api_username}, password => $self->{api_password} };
$json_request->{authLoginDomain} = $self->{api_domain} if (defined($self->{api_domain}) && $self->{api_domain} ne '');
my $encoded;
eval {
$encoded = encode_json($json_request);
};
if ($@) {
$self->{output}->add_option_msg(short_msg => 'Cannot encode json request');
$self->{output}->option_exit();
}
my $content = $self->{http}->request(
method => 'POST',
url_path => '/rest/login-sessions',
query_form_post => $encoded,
warning_status => '', unknown_status => '', critical_status => '',
);
if ($self->{http}->get_code() != 200) {
$self->{output}->add_option_msg(short_msg => "Login error [code: '" . $self->{http}->get_code() . "'] [message: '" . $self->{http}->get_message() . "']");
$self->{output}->option_exit();
}
my $decoded = $self->json_decode(content => $content);
if (defined($decoded) && defined($decoded->{sessionID})) {
$session_id = $decoded->{sessionID};
} else {
$self->{output}->add_option_msg(short_msg => "Error retrieving session_id");
$self->{output}->option_exit();
}
my $datas = { last_timestamp => time(), session_id => $session_id };
$self->{cache}->write(data => $datas);
}
$self->{session_id} = $session_id;
$self->{http}->add_header(key => 'Auth', value => $self->{session_id});
my $content = $self->{http}->request(
url_path => '/rest/version',
warning_status => '', unknown_status => '', critical_status => ''
);
my $decoded = $self->decode_api_response(content => $content);
if (!defined($decoded->{currentVersion})) {
$self->{output}->add_option_msg(short_msg => 'Cannot get api version');
$self->{output}->option_exit();
}
$self->{http}->add_header(key => 'X-Api-Version', value => $decoded->{currentVersion});
}
sub request_api {
my ($self, %options) = @_;
$self->settings();
if (!defined($self->{session_id})) {
$self->authenticate();
}
my $content = $self->{http}->request(
%options,
warning_status => '', unknown_status => '', critical_status => ''
);
# Maybe there is an issue with the session_id. So we retry.
if ($self->{http}->get_code() != 200) {
$self->clean_session_id();
$self->authenticate();
$content = $self->{http}->request(%options,
warning_status => '', unknown_status => '', critical_status => ''
);
}
return $self->decode_api_response(content => $content);
}
1;
__END__
=head1 NAME
HP OneView Rest API
=head1 REST API OPTIONS
=over 8
=item B<--hostname>
Set hostname or IP of vsca.
=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<--api-domain>
Set domain.
=item B<--timeout>
Threshold for HTTP timeout (Default: '30').
=back
=cut