harden(core/options): use package Pod::Simple::Search than legacy Pod::Find (#2775)

centreon/plugins/options.pm

@@ -21,7 +21,6 @@
 package centreon::plugins::options;
 
 use Pod::Usage;
-use Pod::Find qw(pod_where);
 use strict;
 use warnings;
 
@@ -32,6 +31,7 @@ sub new {
     my $self  = {};
     bless $self, $class;
 
+    $self->{pod_where_loaded} = 0;
     $self->{sanity} = 0;
     $self->{options_stored} = {};
     $self->{options} = {};
@@ -76,14 +76,16 @@ sub display_help {
 
     my $stdout;
     foreach (@{$self->{pod_package}}) {
+        my $where = $self->pod_where(package => $_->{package});
 
         {
             local *STDOUT;
             open STDOUT, '>', \$stdout;
-            my $where = pod_where({-inc => 1}, $_->{package});
-            pod2usage(-exitval => 'NOEXIT', -input => $where,
+            pod2usage(
+                -exitval => 'NOEXIT', -input => $where,
                 -verbose => 99, 
-                      -sections => $_->{sections}) if (defined($where));
+                -sections => $_->{sections}
+            ) if (defined($where));
         }
 
         $self->{output}->add_option_msg(long_msg => $stdout) if (defined($stdout));
@@ -151,6 +153,34 @@ sub parse_options {
     $SIG{__WARN__} = $save_warn_handler if ($self->{sanity} == 1);
 }
 
+sub pod_where {
+    my ($self, %options) = @_;
+
+    if ($self->{pod_where_loaded} == 0) {
+        $self->{pod_where_loaded} = 1;
+        my ($code) = centreon::plugins::misc::mymodule_load(
+            module => 'Pod::Find',
+            no_quit => 1
+        );
+        if ($code) {
+            $code = centreon::plugins::misc::mymodule_load(
+                module => 'Pod::Simple::Search',
+                no_quit => 1
+            );
+            die "Cannot load module 'Pod::Simple::Search'" if ($code);
+            $self->{pod_where_loaded} = 2;
+            $self->{pod_simple_search} = Pod::Simple::Search->new();
+            $self->{pod_simple_search}->inc(1);
+        }
+    }
+
+    if ($self->{pod_where_loaded} == 1) {
+        return Pod::Find::pod_where({-inc => 1}, $options{package});
+    }
+    
+    return $self->{pod_simple_search}->find($options{package});
+}
+
 sub get_option {
     my ($self, %options) = @_;
 

centreon/plugins/script.pm

@@ -25,7 +25,6 @@ use warnings;
 use centreon::plugins::output;
 use centreon::plugins::misc;
 use Pod::Usage;
-use Pod::Find qw(pod_where);
 
 my %handlers = (DIE => {}, ALRM => {});
 
@@ -164,7 +163,7 @@ sub display_local_help {
         open STDOUT, '>', \$stdout;
 
         if ($alternative_fatpacker == 0) {
-            pod2usage(-exitval => 'NOEXIT', -input => pod_where({-inc => 1}, __PACKAGE__));
+            pod2usage(-exitval => 'NOEXIT', -input => $self->{options}->pod_where(package => __PACKAGE__));
         } else {
             my $pp = __PACKAGE__ . '.pm';
             $pp =~ s{::}{/}g;
@@ -418,8 +417,10 @@ sub run {
     $self->check_relaunch();
 
     (undef, $self->{plugin}) = 
-        centreon::plugins::misc::mymodule_load(output => $self->{output}, module => $self->{plugin}, 
-                                               error_msg => 'Cannot load module --plugin.');
+        centreon::plugins::misc::mymodule_load(
+            output => $self->{output}, module => $self->{plugin}, 
+            error_msg => 'Cannot load module --plugin.'
+        );
     my $plugin = $self->{plugin}->new(options => $self->{options}, output => $self->{output});
     $plugin->init(
         help => $self->{help},