centreon-plugins/apps/emc/ppma/restapi/custom/api.pm

301 lines
9.0 KiB
Perl

#
# Copyright 2021 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.
# Authors : Roman Morandell - ivertix
#
package apps::emc::ppma::restapi::custom::api;
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 = {};
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' },
'url-path:s' => { name => 'url_path' },
'api-username:s' => { name => 'api_username' },
'api-password:s' => { name => 'api_password' },
'timeout:s' => { name => 'timeout' }
});
}
$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} : '';
$self->{proto} = (defined($self->{option_results}->{proto})) ? $self->{option_results}->{proto} : 'https';
$self->{port} = (defined($self->{option_results}->{port})) ? $self->{option_results}->{port} : 443;
$self->{url_path} = (defined($self->{option_results}->{url_path})) ? $self->{option_results}->{url_path} : '/LicenseReportingApplication/rest/powerpath';
$self->{api_username} = (defined($self->{option_results}->{api_username})) ? $self->{option_results}->{api_username} : '';
$self->{api_password} = (defined($self->{option_results}->{api_password})) ? $self->{option_results}->{api_password} : '';
$self->{timeout} = (defined($self->{option_results}->{timeout})) ? $self->{option_results}->{timeout} : 30;
$self->{unknown_http_status} = (defined($self->{option_results}->{unknown_http_status})) ? $self->{option_results}->{unknown_http_status} : '%{http_code} < 200 or %{http_code} >= 300' ;
$self->{warning_http_status} = (defined($self->{option_results}->{warning_http_status})) ? $self->{option_results}->{warning_http_status} : '';
$self->{critical_http_status} = (defined($self->{option_results}->{critical_http_status})) ? $self->{option_results}->{critical_http_status} : '';
if ($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 => $self->{option_results});
return 0;
}
sub get_connection_infos {
my ($self, %options) = @_;
return $self->{hostname} . '_' . $self->{http}->get_port();
}
sub get_hostname {
my ($self, %options) = @_;
return $self->{hostname};
}
sub get_port {
my ($self, %options) = @_;
return $self->{port};
}
sub json_decode {
my ($self, %options) = @_;
$options{content} =~ s/\r//mg;
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 $decoded;
}
sub build_options_for_httplib {
my ($self, %options) = @_;
$self->{option_results}->{hostname} = $self->{hostname};
$self->{option_results}->{port} = $self->{port};
$self->{option_results}->{proto} = $self->{proto};
}
sub settings {
my ($self, %options) = @_;
$self->build_options_for_httplib();
$self->{http}->add_header(key => 'Accept', value => 'application/json');
$self->{http}->set_options(%{$self->{option_results}});
}
sub clean_session {
my ($self, %options) = @_;
my $datas = {};
$options{statefile}->write(data => $datas);
$self->{cookie_id} = undef;
}
sub get_session {
my ($self, %options) = @_;
my $has_cache_file = $options{statefile}->read(statefile => 'emc_ppma_' . md5_hex($self->{option_results}->{hostname}) . '_' . md5_hex($self->{option_results}->{api_username}));
my $cookie_id = $options{statefile}->get(name => 'cookie_id');
if ($has_cache_file == 0 || !defined($cookie_id)) {
my ($content) = $self->{http}->request(
method => 'POST',
url_path => '/LicenseReportingApplication/authenticate',
post_param => [
'j_username=' . $self->{api_username},
'j_password=' . $self->{api_password}
],
cookies_file => '',
warning_status => '', unknown_status => '', critical_status => ''
);
if ($self->{http}->get_code() != 200) {
$self->{output}->add_option_msg(short_msg => "Authentication error [code: '" . $self->{http}->get_code() . "'] [message: '" . $self->{http}->get_message() . "']");
$self->{output}->option_exit();
}
my (@cookies) = $self->{http}->get_first_header(name => 'Set-Cookie');
foreach my $cookie (@cookies) {
$cookie_id = $1 if ($cookie =~ /JSESSIONID=(.+?);/);
}
if (!defined($cookie_id)) {
$self->{output}->add_option_msg(short_msg => "Cannot get cookie");
$self->{output}->option_exit();
}
$options{statefile}->write(data => { cookie_id => $cookie_id });
}
$self->{cookie_id} = $cookie_id;
}
sub request {
my ($self, %options) = @_;
my $endpoint = $self->{url_path} . $options{endpoint};
$self->settings();
if (!defined($self->{access_token})) {
$self->get_session(statefile => $self->{cache});
}
my $content = $self->{http}->request(
method => 'GET',
url_path => $endpoint,
get_param => $options{get_param},
header => [
'Cookie: JSESSIONID=' . $self->{cookie_id},
'Content-Type: application/json'
],
warning_status => '',
unknown_status => '',
critical_status => ''
);
# Maybe there is an issue with the token. So we retry.
if ($self->{http}->get_code() < 200 || $self->{http}->get_code() >= 300) {
$self->clean_session(statefile => $self->{cache});
$self->get_session(statefile => $self->{cache});
$content = $self->{http}->request(
url_path => $endpoint,
get_param => $options{get_param},
header => [
'Cookie: JSESSIONID=' . $self->{cookie_id},
'Content-Type: application/json'
],
unknown_status => $self->{unknown_http_status},
warning_status => $self->{warning_http_status},
critical_status => $self->{critical_http_status}
);
}
my $decoded = $self->json_decode(content => $content);
if (!defined($decoded)) {
$self->{output}->add_option_msg(short_msg => 'Error while retrieving data (add --debug option for detailed message)');
$self->{output}->option_exit();
}
return $decoded;
}
1;
__END__
=head1 NAME
PPMA API
=head1 SYNOPSIS
PPMA api
=head1 REST API OPTIONS
=over 8
=item B<--hostname>
API hostname.
=item B<--url-path>
API url path (Default: '/LicenseReportingApplication/rest/powerpath')
=item B<--port>
API port (Default: 443)
=item B<--proto>
Specify https if needed (Default: 'https')
=item B<--api-username>
Set API username
=item B<--api-password>
Set API password
=item B<--timeout>
Set HTTP timeout
=back
=head1 DESCRIPTION
B<custom>.
=cut