Add trusted_networks field support

spam/CHANGELOG

@@ -22,3 +22,5 @@ Converted all pages to use the new Webmin UI library, for a more consistent look
 Cleaned up the layout of all pages to improve formatted, in particular the Allowed and Denied Addresses page which now uses tabs.
 ---- Changes since 1.520 ----
 Don't show language and character set spam classification options unless the TextCat plugin is enabled, as they won't work without it.
+---- Changes since 1.590 ----
+Added a field for setting the trusted_networks parameter.

spam/edit_score.cgi

@@ -54,6 +54,11 @@ $received = &find("num_check_received", $conf);
 print &ui_table_row($text{'score_received'},
 	&opt_field("num_check_received", $received, 5, 2));
 
+# Trusted networks
+@trusted = &find_value("trusted_networks", $conf);
+print &ui_table_row($text{'score_trusted'},
+	&ui_textarea("trusted_networks", join("\n", @trusted), 5, 70));
+
 if (&indexof("Mail::SpamAssassin::Plugin::TextCat", @plugins) >= 0) {
 	print &ui_table_hr();
 

spam/lang/en

@@ -63,6 +63,7 @@ score_localessel=Selected character sets ..
 score_auto=Whitelist score factor
 score_timeout=Seconds to wait for RBL queries
 score_received=Number of Received: headers to check with RBL
+score_trusted=Networks and hosts to trust
 score_describe=Test descriptions for report
 score_descr=Description
 score_err=Failed to save message scoring

spam/save_score.cgi

@@ -21,6 +21,9 @@ $hits_param = &version_atleast(3.0) ? "required_score" : "required_hits";
 &parse_opt($conf, "rbl_timeout", \&timeout_check);
 &parse_opt($conf, "num_check_received", \&received_check);
 
+@trusted = grep { /\S/ } split(/\r?\n/, $in{'trusted_networks'});
+&save_directives($conf, "trusted_networks", \@trusted, 1);
+
 if (defined($in{'langs_def'})) {
 	if ($in{'langs_def'} == 2) {
 		&save_directives($conf, "ok_languages", [ ], 1);