127 lines
2.8 KiB
Perl
Executable File
127 lines
2.8 KiB
Perl
Executable File
#!/usr/bin/env perl
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use warnings;
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use strict;
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use Getopt::Std;
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use LWP::UserAgent;
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use JSON 'decode_json';
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my $plugin_name = "Nagios check_http_json";
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my $VERSION = "1.01";
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# getopt module config
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$Getopt::Std::STANDARD_HELP_VERSION = 1;
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# nagios exit codes
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use constant EXIT_OK => 0;
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use constant EXIT_WARNING => 1;
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use constant EXIT_CRITICAL => 2;
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use constant EXIT_UNKNOWN => 3;
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my $status = EXIT_UNKNOWN;
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#parse cmd opts
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my %opts;
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getopts('vU:t:d:', \%opts);
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$opts{t} = 5 unless (defined $opts{t});
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if (not (defined $opts{U}) ) {
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print "ERROR: INVALID USAGE\n";
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HELP_MESSAGE();
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exit $status;
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}
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my $ua = LWP::UserAgent->new;
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$ua->agent('Redirect Bot ' . $VERSION);
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$ua->protocols_allowed( [ 'http', 'https'] );
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$ua->parse_head(0);
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$ua->timeout($opts{t});
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my $response = $ua->get($opts{U});
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if ( index($response->header("content-type"), 'application/json') == -1 )
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{
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print "Expected content-type to be application/json, got ", $response->header("content-type");
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exit EXIT_CRITICAL;
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}
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my $json_response;
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eval {
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$json_response = decode_json($response->content);
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print "JSON repsonse decoded successfully."
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} or do {
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print "Unable to decode JSON, invalid response?";
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exit EXIT_CRITICAL;
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};
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if ($opts{d}) {
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if ( -e $opts{d}) {
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my $hash_import = do $opts{d};
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my %attr_check = %{$hash_import};
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my @errors;
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for my $key (sort keys %attr_check) {
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for my $attr (sort keys %{$attr_check{$key}}) {
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my $have = $json_response->{products}{$key}{now}{$attr};
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my $expect = $attr_check{$key}{$attr};
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push @errors, "For key $key, attribute $attr, expected '$expect', but got '$have'"
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unless $have eq $expect;
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}
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}
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if (@errors) {
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print "Errors:\n", map { "$_\n" } @errors;
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$status = EXIT_CRITICAL;
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}
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else {
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print "Found expected content.";
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$status = EXIT_OK;
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}
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}
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else {
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print "Unable to find data file $opts{d}";
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$status = EXIT_UNKNOWN;
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}
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}
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exit $status;
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sub HELP_MESSAGE
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{
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print <<EOHELP
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Retrieve an http/s url and checks its application type is application/json and the response content decodes properly into JSON.
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Optionally verify content is found using data file.
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--help shows this message
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--version shows version information
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USAGE: $0 -U http://my.url.com [-d sample.data]
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-U URL to retrieve (http or https)
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-d absolute path to data file containing hash to find with JSON response (optional)
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-t Timeout in seconds to wait for the URL to load (default 60)
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EOHELP
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;
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}
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sub VERSION_MESSAGE
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{
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print <<EOVM
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$plugin_name v. $VERSION
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Copyright 2012, Brian Buchalter, http://www.endpoint.com - Licensed under GPLv2
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EOVM
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;
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}
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