centreon-plugins/apps/protocols/http/mode/jsoncontent.pm

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