561 lines
19 KiB
Perl
561 lines
19 KiB
Perl
#
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# Copyright 2020 Centreon (http://www.centreon.com/)
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#
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# Centreon is a full-fledged industry-strength solution that meets
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# the needs in IT infrastructure and application monitoring for
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# service performance.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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package apps::protocols::http::mode::jsoncontent;
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use base qw(centreon::plugins::mode);
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use strict;
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use warnings;
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use Time::HiRes qw(gettimeofday tv_interval);
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use centreon::plugins::http;
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use JSON::Path;
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use JSON;
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sub new {
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my ($class, %options) = @_;
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my $self = $class->SUPER::new(package => __PACKAGE__, %options);
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bless $self, $class;
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$options{options}->add_options(arguments => {
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"hostname:s" => { name => 'hostname' },
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"vhost:s" => { name => 'vhost' },
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"port:s" => { name => 'port', },
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"proto:s" => { name => 'proto' },
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"urlpath:s" => { name => 'url_path' },
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"credentials" => { name => 'credentials' },
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"basic" => { name => 'basic' },
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"ntlmv2" => { name => 'ntlmv2' },
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"username:s" => { name => 'username' },
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"password:s" => { name => 'password' },
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"header:s@" => { name => 'header' },
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"get-param:s@" => { name => 'get_param' },
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"timeout:s" => { name => 'timeout', default => 10 },
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"cert-file:s" => { name => 'cert_file' },
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"key-file:s" => { name => 'key_file' },
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"cacert-file:s" => { name => 'cacert_file' },
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"cert-pwd:s" => { name => 'cert_pwd' },
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"cert-pkcs12" => { name => 'cert_pkcs12' },
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"unknown-status:s" => { name => 'unknown_status' },
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"warning-status:s" => { name => 'warning_status' },
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"critical-status:s" => { name => 'critical_status' },
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"warning-numeric:s" => { name => 'warning_numeric' },
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"critical-numeric:s" => { name => 'critical_numeric' },
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"warning-string:s" => { name => 'warning_string' },
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"critical-string:s" => { name => 'critical_string' },
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"unknown-string:s" => { name => 'unknown_string' },
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"warning-time:s" => { name => 'warning_time' },
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"critical-time:s" => { name => 'critical_time' },
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"threshold-value:s" => { name => 'threshold_value', default => 'count' },
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"format-ok:s" => { name => 'format_ok', default => '%{count} element(s) found' },
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"format-warning:s" => { name => 'format_warning', default => '%{count} element(s) found' },
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"format-critical:s" => { name => 'format_critical', default => '%{count} element(s) found' },
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"format-unknown:s" => { name => 'format_unknown', default => '%{count} element(s) found' },
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"format-lookup:s" => { name => 'format_lookup'},
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"values-separator:s" => { name => 'values_separator', default => ', ' },
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"lookup-perfdatas-nagios:s" => { name => 'lookup_perfdatas_nagios'},
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"data:s" => { name => 'data' },
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"lookup:s@" => { name => 'lookup' },
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});
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$self->{count} = 0;
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$self->{count_ok} = 0;
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$self->{count_warning} = 0;
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$self->{count_critical} = 0;
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$self->{values_ok} = [];
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$self->{values_warning} = [];
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$self->{values_critical} = [];
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$self->{values_unknown} = [];
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$self->{values_string_ok} = [];
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$self->{values_string_warning} = [];
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$self->{values_string_critical} = [];
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$self->{values_string_unknown} = [];
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$self->{http} = centreon::plugins::http->new(%options);
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return $self;
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}
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sub check_options {
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my ($self, %options) = @_;
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$self->SUPER::init(%options);
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if (!defined($self->{option_results}->{threshold_value}) || $self->{option_results}->{threshold_value} !~ /^(count|values)$/) {
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$self->{option_results}->{threshold_value} = 'count';
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}
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if (($self->{perfdata}->threshold_validate(label => 'warning-numeric', value => $self->{option_results}->{warning_numeric})) == 0) {
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$self->{output}->add_option_msg(short_msg => "Wrong warning-numeric threshold '" . $self->{option_results}->{warning_numeric} . "'.");
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$self->{output}->option_exit();
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}
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if (($self->{perfdata}->threshold_validate(label => 'critical-numeric', value => $self->{option_results}->{critical_numeric})) == 0) {
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$self->{output}->add_option_msg(short_msg => "Wrong critical-numeric threshold '" . $self->{option_results}->{critical_numeric} . "'.");
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$self->{output}->option_exit();
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}
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if (($self->{perfdata}->threshold_validate(label => 'warning-time', value => $self->{option_results}->{warning_time})) == 0) {
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$self->{output}->add_option_msg(short_msg => "Wrong warning-time threshold '" . $self->{option_results}->{warning_time} . "'.");
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$self->{output}->option_exit();
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}
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if (($self->{perfdata}->threshold_validate(label => 'critical-time', value => $self->{option_results}->{critical_time})) == 0) {
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$self->{output}->add_option_msg(short_msg => "Wrong critical-time threshold '" . $self->{option_results}->{critical_time} . "'.");
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$self->{output}->option_exit();
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}
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$self->{http}->set_options(%{$self->{option_results}});
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}
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sub load_request {
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my ($self, %options) = @_;
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$self->{method} = 'GET';
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if (defined($self->{option_results}->{data}) && $self->{option_results}->{data} ne '') {
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$self->{method} = 'POST';
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if (-f $self->{option_results}->{data} and -r $self->{option_results}->{data}) {
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local $/ = undef;
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my $fh;
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if (!open($fh, "<:encoding(UTF-8)", $self->{option_results}->{data})) {
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$self->{output}->output_add(severity => 'UNKNOWN',
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short_msg => sprintf("Could not read file '%s': %s", $self->{option_results}->{data}, $!));
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$self->{output}->display();
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$self->{output}->exit();
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}
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my $file_content = <$fh>;
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close $fh;
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$/ = "\n";
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chomp $file_content;
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$self->{json_request} = $file_content;
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} else {
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$self->{json_request} = $self->{option_results}->{data};
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}
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}
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}
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sub display_output {
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my ($self, %options) = @_;
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foreach my $severity (('ok', 'warning', 'critical', 'unknown')) {
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next if (scalar(@{$self->{'values_' . $severity}}) == 0 && scalar(@{$self->{'values_string_' . $severity}}) == 0);
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my $format = '';
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if(defined($self->{option_results}->{format_lookup}) && $self->{option_results}->{format_lookup} ne '') {
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$format = $self->{format_from_json};
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} else {
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$format = $self->{option_results}->{'format_' . $severity};
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}
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while ($format =~ /%\{(.*?)\}/g) {
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my $replace = '';
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if (ref($self->{$1}) eq 'ARRAY') {
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$replace = join($self->{option_results}->{values_separator}, @{$self->{$1}});
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} else {
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$replace = defined($self->{$1}) ? $self->{$1} : '';
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}
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$format =~ s/%\{$1\}/$replace/g;
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}
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$self->{output}->output_add(
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severity => $severity,
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short_msg => $format
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);
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}
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}
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sub decode_json_response {
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my ($self, %options) = @_;
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return if (defined($self->{json_response_decoded}));
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my $json = JSON->new;
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eval {
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$self->{json_response_decoded} = $json->decode($self->{json_response});
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};
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if ($@) {
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$self->{output}->add_option_msg(short_msg => "Cannot decode json response");
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$self->{output}->option_exit();
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}
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}
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sub lookup {
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my ($self, %options) = @_;
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my ($xpath, @values);
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$self->decode_json_response();
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foreach my $xpath_find (@{$self->{option_results}->{lookup}}) {
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eval {
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my $jpath = JSON::Path->new($xpath_find);
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@values = $jpath->values($self->{json_response_decoded});
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};
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if ($@) {
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$self->{output}->add_option_msg(short_msg => "Cannot lookup: $@");
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$self->{output}->option_exit();
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}
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$self->{output}->output_add(long_msg => "Lookup XPath $xpath_find:");
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foreach my $value (@values) {
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$self->{count}++;
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$self->{output}->output_add(long_msg => ' Node value: ' . $value);
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push @{$self->{values}}, $value;
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}
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}
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if ($self->{option_results}->{threshold_value} eq 'count') {
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my $exit = lc(
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$self->{perfdata}->threshold_check(
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value => $self->{count},
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threshold => [ { label => 'critical-numeric', exit_litteral => 'critical' }, { label => 'warning-numeric', exit_litteral => 'warning' } ]
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)
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);
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push @{$self->{'values_' . $exit}}, $self->{count};
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$self->{'count_' . $exit}++;
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}
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$self->{output}->perfdata_add(
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label => 'count',
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value => $self->{count},
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warning => $self->{option_results}->{threshold_value} eq 'count' ? $self->{perfdata}->get_perfdata_for_output(label => 'warning-numeric') : undef,
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critical => $self->{option_results}->{threshold_value} eq 'count' ? $self->{perfdata}->get_perfdata_for_output(label => 'critical-numeric') : undef,
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min => 0
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);
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my $count = 0;
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foreach my $value (@{$self->{values}}) {
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$count++;
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if ($value =~ /^[0-9.]+$/) {
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if ($self->{option_results}->{threshold_value} eq 'values') {
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my $exit = lc(
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$self->{perfdata}->threshold_check(
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value => $value,
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threshold => [ { label => 'critical-numeric', exit_litteral => 'critical' }, { label => 'warning-numeric', exit_litteral => 'warning' } ]
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)
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);
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push @{$self->{'values_' . $exit}}, $value;
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$self->{'count_' . $exit}++
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}
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$self->{output}->perfdata_add(
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label => 'element_' . $count,
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value => $value,
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warning => $self->{option_results}->{threshold_value} eq 'values' ? $self->{perfdata}->get_perfdata_for_output(label => 'warning-numeric') : undef,
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critical => $self->{option_results}->{threshold_value} eq 'values' ? $self->{perfdata}->get_perfdata_for_output(label => 'critical-numeric') : undef
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);
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} else {
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if (defined($self->{option_results}->{critical_string}) && $self->{option_results}->{critical_string} ne '' &&
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$value =~ /$self->{option_results}->{critical_string}/) {
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push @{$self->{values_string_critical}}, $value;
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} elsif (defined($self->{option_results}->{warning_string}) && $self->{option_results}->{warning_string} ne '' &&
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$value =~ /$self->{option_results}->{warning_string}/) {
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push @{$self->{values_string_warning}}, $value;
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} elsif (defined($self->{option_results}->{unknown_string}) && $self->{option_results}->{unknown_string} ne '' &&
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$value =~ /$self->{option_results}->{unknown_string}/) {
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push @{$self->{values_string_unknown}}, $value;
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}
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else {
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push @{$self->{values_string_ok}}, $value;
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}
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}
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}
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if (defined($self->{option_results}->{format_lookup}) && $self->{option_results}->{format_lookup} ne '') {
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my $xpath_find = $self->{option_results}->{format_lookup};
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eval {
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my $jpath = JSON::Path->new($xpath_find);
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$self->{format_from_json} = $jpath->value($self->{json_response_decoded});
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};
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if ($@) {
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$self->{output}->add_option_msg(short_msg => "Cannot lookup output message: $@");
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$self->{output}->option_exit();
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}
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$self->{output}->output_add(long_msg => "Lookup perfdatas XPath $xpath_find:");
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}
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$self->display_output();
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}
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sub lookup_perfdata_nagios {
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my ($self, %options) = @_;
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return if (!defined($self->{option_results}->{lookup_perfdatas_nagios}) || $self->{option_results}->{lookup_perfdatas_nagios} eq '');
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$self->decode_json_response();
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my $perfdata_string;
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my $xpath_find = $self->{option_results}->{lookup_perfdatas_nagios};
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eval {
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my $jpath = JSON::Path->new($xpath_find);
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$perfdata_string = $jpath->value($self->{json_response_decoded});
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};
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if ($@) {
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$self->{output}->add_option_msg(short_msg => "Cannot lookup perfdatas: $@");
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$self->{output}->option_exit();
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}
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$self->{output}->output_add(long_msg => "Lookup perfdatas XPath $xpath_find:");
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my @metrics = split(/ /, $perfdata_string);
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foreach my $single_metric (@metrics) {
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my ($label, $perfdatas) = split(/=/, $single_metric);
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my ($value_w_unit, $warn, $crit, $min, $max) = split(/;/, $perfdatas);
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# separate the value from the unit
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my ($value, $unit) = $value_w_unit =~ /(^[0-9]+\.*\,*[0-9]*)(.*)/g;
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$self->{output}->perfdata_add(
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label => $label, unit => $unit,
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value => $value,
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warning => $warn,
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critical => $crit,
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min => $min,
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max => $max
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);
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}
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}
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sub run {
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my ($self, %options) = @_;
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$self->load_request();
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my $timing0 = [gettimeofday];
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$self->{json_response} = $self->{http}->request(method => $self->{method}, query_form_post => $self->{json_request});
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my $timeelapsed = tv_interval ($timing0, [gettimeofday]);
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$self->{output}->output_add(long_msg => $self->{json_response}, debug => 1);
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if (!defined($self->{option_results}->{lookup}) || scalar(@{$self->{option_results}->{lookup}}) == 0) {
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$self->{output}->output_add(
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severity => 'OK',
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short_msg => "JSON webservice request success"
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);
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} else {
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$self->lookup();
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}
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my $exit = $self->{perfdata}->threshold_check(
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value => $timeelapsed,
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threshold => [ { label => 'critical-time', exit_litteral => 'critical' }, { label => 'warning-time', exit_litteral => 'warning' } ]
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);
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if (!$self->{output}->is_status(value => $exit, compare => 'ok', litteral => 1)) {
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$self->{output}->output_add(severity => $exit,
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short_msg => sprintf("Response time %.3fs", $timeelapsed));
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} else {
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$self->{output}->output_add(long_msg => sprintf("Response time %.3fs", $timeelapsed));
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}
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$self->{output}->perfdata_add(
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label => "time", unit => 's',
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value => sprintf('%.3f', $timeelapsed),
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warning => $self->{perfdata}->get_perfdata_for_output(label => 'warning-time'),
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critical => $self->{perfdata}->get_perfdata_for_output(label => 'critical-time'),
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min => 0
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);
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$self->lookup_perfdata_nagios();
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$self->{output}->display();
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$self->{output}->exit();
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}
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1;
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__END__
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=head1 MODE
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Check JSON webservice. Can send the json request with option '--data'. Example:
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centreon_plugins.pl --plugin=apps::protocols::http::plugin --mode=json-content --data='/home/user/request.json' --hostname='myws.site.com' --urlpath='/get/payment'
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--lookup='$..expiration' --header='Content-Type: application/json'
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JSON OPTIONS:
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=over 8
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=item B<--data>
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Set file with JSON request
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=item B<--lookup>
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What to lookup in JSON response (JSON XPath string) (can be multiple)
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See: http://goessner.net/articles/JsonPath/
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=item B<--lookup-perfdatas-nagios>
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Take perfdatas from the JSON response (JSON XPath string)
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Chain must be formated in Nagios format.
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Ex : "rta=10.752ms;50.000;100.000;0; pl=0%;20;40;; rtmax=10.802ms;;;;"
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=back
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FORMAT OPTIONS:
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=over 8
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=item B<--format-lookup>
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Take the output message from the JSON response (JSON XPath string)
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Override all the format options but substitute are still applied.
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=item B<--format-ok>
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Output format (Default: '%{count} element(s) found')
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Can used:
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'%{values}' = display all values (also text string)
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'%{values_ok}' = values from attributes and text node only (seperated by option values-separator)
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'%{values_warning}' and '%{values_critical}'
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=item B<--format-warning>
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Output warning format (Default: %{count} element(s) found')
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=item B<--format-critical>
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Output critical format (Default: %{count} element(s) found')
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=item B<--format-unknown>
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Output unknown format (Default: %{count} element(s) found')
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=item B<--values-separator>
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Separator used for values in format option (Default: ', ')
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=back
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THRESHOLD OPTIONS:
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=over 8
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=item B<--warning-numeric>
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Threshold warning (Default: on total matching elements)
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=item B<--critical-numeric>
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Threshold critical (Default: on total matching elements)
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=item B<--threshold-value>
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Which value to use (Default: 'count')
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Can be: 'values' (only check numeric values)
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=item B<--warning-string>
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Threshold warning if the string match
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=item B<--critical-string>
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Threshold critical if the string match
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=item B<--unknown-string>
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Threshold unknown if the string match
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=item B<--warning-time>
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Threshold warning in seconds of webservice response time
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=item B<--critical-time>
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Threshold critical in seconds of webservice response time
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=back
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HTTP OPTIONS:
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=over 8
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=item B<--hostname>
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IP Addr/FQDN of the Webserver host
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=item B<--port>
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Port used by Webserver
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=item B<--proto>
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Specify https if needed
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=item B<--urlpath>
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Set path to get Webpage (Default: '/')
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=item B<--credentials>
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Specify this option if you access webpage with authentication
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=item B<--username>
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Specify username for authentication (Mandatory if --credentials is specified)
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=item B<--password>
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Specify password for authentication (Mandatory if --credentials is specified)
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=item B<--basic>
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Specify this option if you access webpage over basic authentication and don't want a '401 UNAUTHORIZED' error to be logged on your webserver.
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Specify this option if you access webpage over hidden basic authentication or you'll get a '404 NOT FOUND' error.
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(Use with --credentials)
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=item B<--ntlmv2>
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Specify this option if you access webpage over ntlmv2 authentication (Use with --credentials and --port options)
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=item B<--timeout>
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Threshold for HTTP timeout (Default: 10)
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=item B<--cert-file>
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Specify certificate to send to the webserver
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=item B<--key-file>
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Specify key to send to the webserver
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=item B<--cacert-file>
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Specify root certificate to send to the webserver
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=item B<--cert-pwd>
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Specify certificate's password
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=item B<--cert-pkcs12>
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|
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Specify type of certificate (PKCS12)
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=item B<--get-param>
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Set GET params (Multiple option. Example: --get-param='key=value')
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=item B<--header>
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|
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Set HTTP headers (Multiple option. Example: --header='Content-Type: xxxxx')
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=item B<--unknown-status>
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|
|
Threshold warning for http response code (Default: '%{http_code} < 200 or %{http_code} >= 300')
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=item B<--warning-status>
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|
|
Threshold warning for http response code
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=item B<--critical-status>
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|
Threshold critical for http response code
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=back
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=cut
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