]> git.ipfire.org Git - people/stevee/ipfire-2.x.git/blobdiff - html/cgi-bin/ids.cgi
ids.cgi: Finish code to handle the removal of a provider from the list.
[people/stevee/ipfire-2.x.git] / html / cgi-bin / ids.cgi
index fb0aeebd7ac032966abbab5663e87795687b1971..ca58e6ab6c601259a35d6ae5260c1a5663fb46f9 100644 (file)
@@ -2,7 +2,7 @@
 ###############################################################################
 #                                                                             #
 # IPFire.org - A linux based firewall                                         #
-# Copyright (C) 2007-2018  IPFire Team  <info@ipfire.org>                     #
+# Copyright (C) 2007-2020  IPFire Team  <info@ipfire.org>                     #
 #                                                                             #
 # This program is free software: you can redistribute it and/or modify        #
 # it under the terms of the GNU General Public License as published by        #
@@ -29,12 +29,16 @@ require '/var/ipfire/general-functions.pl';
 require "${General::swroot}/lang.pl";
 require "${General::swroot}/header.pl";
 require "${General::swroot}/ids-functions.pl";
+require "${General::swroot}/network-functions.pl";
+
+# Import ruleset providers file.
+require "$IDS::rulesetsourcesfile";
 
 my %color = ();
 my %mainsettings = ();
 my %idsrules = ();
 my %idssettings=();
-my %rulesetsources = ();
+my %used_providers=();
 my %cgiparams=();
 my %checked=();
 my %selected=();
@@ -42,42 +46,30 @@ my %ignored=();
 
 # Read-in main settings, for language, theme and colors.
 &General::readhash("${General::swroot}/main/settings", \%mainsettings);
-&General::readhash("/srv/web/ipfire/html/themes/".$mainsettings{'THEME'}."/include/colors.txt", \%color);
+&General::readhash("/srv/web/ipfire/html/themes/ipfire/include/colors.txt", \%color);
 
 # Get the available network zones, based on the config type of the system and store
 # the list of zones in an array.
-my @network_zones = &IDS::get_available_network_zones();
-
-# File where the used rulefiles are stored.
-my $idsusedrulefilesfile = "$IDS::settingsdir/suricata-used-rulefiles.yaml";
-
-# File where the addresses of the homenet are stored.
-my $idshomenetfile = "$IDS::settingsdir/suricata-homenet.yaml";
-
-# File which contains the enabled sids.
-my $enabled_sids_file = "$IDS::settingsdir/oinkmaster-enabled-sids.conf";
+my @network_zones = &Network::get_available_network_zones();
 
-# File which contains the disabled sids.
-my $disabled_sids_file = "$IDS::settingsdir/oinkmaster-disabled-sids.conf";
-
-# File which contains wheater the rules should be changed.
-my $modify_sids_file = "$IDS::settingsdir/oinkmaster-modify-sids.conf";
-
-# File which stores the configured settings for whitelisted addresses.
-my $ignoredfile = "$IDS::settingsdir/ignored";
-
-# File which contains the rules to whitelist addresses on suricata.
-my $whitelistfile = "$IDS::rulespath/whitelist.rules";
+# Check if openvpn is started and add it to the array of network zones.
+if ( -e "/var/run/openvpn.pid") {
+       push(@network_zones, "ovpn");
+}
 
 my $errormessage;
 
 # Create files if they does not exist yet.
-unless (-f "$enabled_sids_file") { &IDS::create_empty_file($enabled_sids_file); }
-unless (-f "$disabled_sids_file") { &IDS::create_empty_file($disabled_sids_file); }
-unless (-f "$modify_sids_file") { &IDS::create_empty_file($modify_sids_file); }
-unless (-f "$idsusedrulefilesfile") { &IDS::create_empty_file($idsusedrulefilesfile); }
-unless (-f "$ignoredfile") { &IDS::create_empty_file($ignoredfile); }
-unless (-f "$whitelistfile" ) { &IDS::create_empty_file($whitelistfile); }
+&IDS::check_and_create_filelayout();
+
+# Hash which contains the colour code of a network zone.
+my %colourhash = (
+       'red' => $Header::colourred,
+       'green' => $Header::colourgreen,
+       'blue' => $Header::colourblue,
+       'orange' => $Header::colourorange,
+       'ovpn' => $Header::colourovpn
+);
 
 &Header::showhttpheaders();
 
@@ -110,7 +102,7 @@ if (($cgiparams{'WHITELIST'} eq $Lang::tr{'add'}) || ($cgiparams{'WHITELIST'} eq
                my $new_entry_remark = $cgiparams{'IGNORE_ENTRY_REMARK'};
 
                # Read-in ignoredfile.
-               &General::readhasharray($ignoredfile, \%ignored);
+               &General::readhasharray($IDS::ignored_file, \%ignored);
 
                # Check if we should edit an existing entry and got an ID.
                if (($cgiparams{'WHITELIST'} eq $Lang::tr{'update'}) && ($cgiparams{'ID'})) {
@@ -145,10 +137,10 @@ if (($cgiparams{'WHITELIST'} eq $Lang::tr{'add'}) || ($cgiparams{'WHITELIST'} eq
                $ignored{$id} = ["$new_entry_address", "$new_entry_remark", "$status"];
 
                # Write the changed ignored hash to the ignored file.
-               &General::writehasharray($ignoredfile, \%ignored);
+               &General::writehasharray($IDS::ignored_file, \%ignored);
 
                # Regenerate the ignore file.
-               &GenerateIgnoreFile();
+               &IDS::generate_ignore_file();
        }
 
        # Check if the IDS is running.
@@ -172,7 +164,7 @@ if (($cgiparams{'WHITELIST'} eq $Lang::tr{'add'}) || ($cgiparams{'WHITELIST'} eq
                undef($cgiparams{'ID'});
 
                # Read-in ignoredfile.
-               &General::readhasharray($ignoredfile, \%ignored);
+               &General::readhasharray($IDS::ignored_file, \%ignored);
 
                # Grab the configured status of the corresponding entry.
                my $status = $ignored{$id}[2];
@@ -188,10 +180,10 @@ if (($cgiparams{'WHITELIST'} eq $Lang::tr{'add'}) || ($cgiparams{'WHITELIST'} eq
                $ignored{$id} = ["$ignored{$id}[0]", "$ignored{$id}[1]", "$status"];
 
                # Write the changed ignored hash to the ignored file.
-               &General::writehasharray($ignoredfile, \%ignored);
+               &General::writehasharray($IDS::ignored_file, \%ignored);
 
                # Regenerate the ignore file.
-               &GenerateIgnoreFile();
+               &IDS::generate_ignore_file();
 
                # Check if the IDS is running.
                if(&IDS::ids_is_running()) {
@@ -206,7 +198,7 @@ if (($cgiparams{'WHITELIST'} eq $Lang::tr{'add'}) || ($cgiparams{'WHITELIST'} eq
        my %ignored = ();
 
        # Read-in ignoredfile.
-       &General::readhasharray($ignoredfile, \%ignored);
+       &General::readhasharray($IDS::ignored_file, \%ignored);
 
        # Drop entry from the hash.
        delete($ignored{$cgiparams{'ID'}});
@@ -215,10 +207,10 @@ if (($cgiparams{'WHITELIST'} eq $Lang::tr{'add'}) || ($cgiparams{'WHITELIST'} eq
        undef($cgiparams{'ID'});
 
        # Write the changed ignored hash to the ignored file.
-       &General::writehasharray($ignoredfile, \%ignored);
+       &General::writehasharray($IDS::ignored_file, \%ignored);
 
        # Regenerate the ignore file.
-       &GenerateIgnoreFile();
+       &IDS::generate_ignore_file();
 
        # Check if the IDS is running.
        if(&IDS::ids_is_running()) {
@@ -227,6 +219,22 @@ if (($cgiparams{'WHITELIST'} eq $Lang::tr{'add'}) || ($cgiparams{'WHITELIST'} eq
        }
 }
 
+# Check if the page is locked, in this case, the ids_page_lock_file exists.
+if (-e $IDS::ids_page_lock_file) {
+       # Lock the webpage and print notice about autoupgrade of the ruleset
+       # is in progess.
+       &working_notice("$Lang::tr{'ids ruleset autoupdate in progress'}");
+
+       # Loop and check if the file still exists.
+       while(-e $IDS::ids_page_lock_file) {
+               # Sleep for a second and re-check.
+               sleep 1;
+       }
+
+       # Page has been unlocked, perform a reload.
+       &reload();
+}
+
 # Check if any error has been stored.
 if (-e $IDS::storederrorfile) {
         # Open file to read in the stored error message.
@@ -242,64 +250,57 @@ if (-e $IDS::storederrorfile) {
         unlink($IDS::storederrorfile);
 }
 
+# Gather ruleset details.
+if ($cgiparams{'RULESET'}) {
+       ## Grab all available rules and store them in the idsrules hash.
+       #
 
-## Grab all available snort rules and store them in the idsrules hash.
-#
-# Open snort rules directory and do a directory listing.
-opendir(DIR, $IDS::rulespath) or die $!;
-       # Loop through the direcory.
-       while (my $file = readdir(DIR)) {
-
-               # We only want files.
-               next unless (-f "$IDS::rulespath/$file");
-
-               # Ignore empty files.
-               next if (-z "$IDS::rulespath/$file");
+       # Get enabled providers.
+       my @enabled_providers = &IDS::get_enabled_providers();
 
-               # Use a regular expression to find files ending in .rules
-               next unless ($file =~ m/\.rules$/);
+       # Open rules directory and do a directory listing.
+       opendir(DIR, $IDS::rulespath) or die $!;
+               # Loop through the direcory.
+               while (my $file = readdir(DIR)) {
 
-               # Ignore files which are not read-able.
-               next unless (-R "$IDS::rulespath/$file");
+                       # We only want files.
+                       next unless (-f "$IDS::rulespath/$file");
 
-               # Skip whitelist rules file.
-               next if( $file eq "whitelist.rules");
+                       # Ignore empty files.
+                       next if (-z "$IDS::rulespath/$file");
 
-               # Call subfunction to read-in rulefile and add rules to
-               # the idsrules hash.
-               &readrulesfile("$file");
-       }
+                       # Use a regular expression to find files ending in .rules
+                       next unless ($file =~ m/\.rules$/);
 
-closedir(DIR);
+                       # Ignore files which are not read-able.
+                       next unless (-R "$IDS::rulespath/$file");
 
-# Gather used rulefiles.
-#
-# Check if the file for activated rulefiles is not empty.
-if(-f $idsusedrulefilesfile) {
-       # Open the file for used rulefile and read-in content.
-       open(FILE, $idsusedrulefilesfile) or die "Could not open $idsusedrulefilesfile. $!\n";
+                       # Skip whitelist rules file.
+                       next if( $file eq "whitelist.rules");
 
-       # Read-in content.
-       my @lines = <FILE>;
+                       # Splitt vendor from filename.
+                       my @filename_parts = split(/-/, $file);
 
-       # Close file.
-       close(FILE);
+                       # Assign vendor name for easy processing.
+                       my $vendor = @filename_parts[0];
 
-       # Loop through the array.
-       foreach my $line (@lines) {
-               # Remove newlines.
-               chomp($line);
+                       # Skip rulefile if the provider is disabled.
+                       next unless ($vendor ~~ @enabled_providers);
 
-               # Skip comments.
-               next if ($line =~ /\#/);
+                       # Call subfunction to read-in rulefile and add rules to
+                       # the idsrules hash.
+                       &readrulesfile("$file");
+               }
 
-               # Skip blank  lines.
-               next if ($line =~ /^\s*$/);
+       closedir(DIR);
 
-               # Gather rule sid and message from the ruleline.
-               if ($line =~ /.*- (.*)/) {
-                       my $rulefile = $1;
+       # Loop through the array of used providers.
+       foreach my $provider (@enabled_providers) {
+               # Gather used rulefiles.
+               my @used_rulesfiles = &IDS::read_used_provider_rulesfiles($provider);
 
+               # Loop through the array of used rulesfiles.
+               foreach my $rulefile (@used_rulesfiles) {
                        # Check if the current rulefile exists in the %idsrules hash.
                        # If not, the file probably does not exist anymore or contains
                        # no rules.
@@ -311,16 +312,101 @@ if(-f $idsusedrulefilesfile) {
        }
 }
 
+# Save ruleset configuration.
+if ($cgiparams{'RULESET'} eq $Lang::tr{'save'}) {
+       my %oldsettings;
+
+       # Read-in current (old) IDS settings.
+       &General::readhash("$IDS::rules_settings_file", \%oldsettings);
+
+       # Prevent form name from been stored in conf file.
+       delete $cgiparams{'RULESET'};
+
+       # Check if the choosen vendor (URL) requires an subscription/oinkcode.
+       if ($IDS::Ruleset::Providers{$cgiparams{'RULES'}}{'requires_subscription'} eq "True") {
+               # Check if an subscription/oinkcode has been provided.
+               if ($cgiparams{'OINKCODE'}) {
+                       # Check if the oinkcode contains unallowed chars.
+                       unless ($cgiparams{'OINKCODE'} =~ /^[a-z0-9]+$/) {
+                               $errormessage = $Lang::tr{'invalid input for oink code'};
+                       }
+               } else {
+                       # Print an error message, that an subsription/oinkcode is required for this
+                       # vendor.
+                       $errormessage = $Lang::tr{'ids oinkcode required'};
+               }
+       }
+
+       # Go on if there are no error messages.
+       if (!$errormessage) {
+               # Store settings into settings file.
+               &General::writehash("$IDS::rules_settings_file", \%cgiparams);
+
+               # Check if a ruleset is present - if not or the source has been changed download it.
+               if((! %idsrules) || ($oldsettings{'RULES'} ne $cgiparams{'RULES'})) {
+                       # Check if the red device is active.
+                       unless (-e "${General::swroot}/red/active") {
+                               $errormessage = "$Lang::tr{'could not download latest updates'} - $Lang::tr{'system is offline'}";
+                       }
+
+                       # Check if enough free disk space is availabe.
+                       if(&IDS::checkdiskspace()) {
+                               $errormessage = "$Lang::tr{'not enough disk space'}";
+                       }
+
+                       # Check if any errors happend.
+                       unless ($errormessage) {
+                               # Lock the webpage and print notice about downloading
+                               # a new ruleset.
+                               &working_notice("$Lang::tr{'ids working'}");
+
+                               # Write the modify sid's file and pass the taken ruleaction.
+                               &IDS::write_modify_sids_file();
+
+                               # Call subfunction to download the ruleset.
+                               if(&IDS::downloadruleset()) {
+                                       $errormessage = $Lang::tr{'could not download latest updates'};
+
+                                       # Call function to store the errormessage.
+                                       &IDS::_store_error_message($errormessage);
+                               } else {
+                                       # Call subfunction to launch oinkmaster.
+                                       &IDS::oinkmaster();
+                               }
+
+                               # Check if the IDS is running.
+                               if(&IDS::ids_is_running()) {
+                                       # Call suricatactrl to stop the IDS - because of the changed
+                                       # ruleset - the use has to configure it before suricata can be
+                                       # used again.
+                                       &IDS::call_suricatactrl("stop");
+                               }
+
+                               # Perform a reload of the page.
+                               &reload();
+                       }
+               }
+       }
+
 # Save ruleset.
-if ($cgiparams{'RULESET'} eq $Lang::tr{'update'}) {
+} elsif ($cgiparams{'RULESET'} eq $Lang::tr{'ids apply'}) {
        # Arrays to store which rulefiles have been enabled and will be used.
        my @enabled_rulefiles;
 
        # Hash to store the user-enabled and disabled sids.
        my %enabled_disabled_sids;
 
+       # Store if a restart of suricata is required.
+       my $suricata_restart_required;
+
        # Loop through the hash of idsrules.
        foreach my $rulefile(keys %idsrules) {
+               # Check if the state of the rulefile has been changed.
+               unless ($cgiparams{$rulefile} eq $idsrules{$rulefile}{'Rulefile'}{'State'}) {
+                       # A restart of suricata is required to apply the changes of the used rulefiles.
+                       $suricata_restart_required = 1;
+               }
+
                # Check if the rulefile is enabled.
                if ($cgiparams{$rulefile} eq "on") {
                        # Add rulefile to the array of enabled rulefiles.
@@ -335,8 +421,8 @@ if ($cgiparams{'RULESET'} eq $Lang::tr{'update'}) {
        # This will be done by calling the read_enabled_disabled_sids_file function two times
        # and merge the returned hashes together into the enabled_disabled_sids hash.
        %enabled_disabled_sids = (
-               &read_enabled_disabled_sids_file($disabled_sids_file),
-               &read_enabled_disabled_sids_file($enabled_sids_file));
+               &read_enabled_disabled_sids_file($IDS::disabled_sids_file),
+               &read_enabled_disabled_sids_file($IDS::enabled_sids_file));
 
        # Loop through the hash of idsrules.
        foreach my $rulefile (keys %idsrules) {
@@ -375,10 +461,10 @@ if ($cgiparams{'RULESET'} eq $Lang::tr{'update'}) {
        }
 
        # Open enabled sid's file for writing.
-       open(ENABLED_FILE, ">$enabled_sids_file") or die "Could not write to $enabled_sids_file. $!\n";
+       open(ENABLED_FILE, ">$IDS::enabled_sids_file") or die "Could not write to $IDS::enabled_sids_file. $!\n";
 
        # Open disabled sid's file for writing.
-       open(DISABLED_FILE, ">$disabled_sids_file") or die "Could not write to $disabled_sids_file. $!\n";
+       open(DISABLED_FILE, ">$IDS::disabled_sids_file") or die "Could not write to $IDS::disabled_sids_file. $!\n";
 
        # Write header to the files.
        print ENABLED_FILE "#Autogenerated file. Any custom changes will be overwritten!\n";
@@ -409,50 +495,67 @@ if ($cgiparams{'RULESET'} eq $Lang::tr{'update'}) {
        # Close file for disabled_sids after writing.
        close(DISABLED_FILE);
 
-       # Open file for used rulefiles.
-       open (FILE, ">$idsusedrulefilesfile") or die "Could not write to $idsusedrulefilesfile. $!\n";
-
-       # Write yaml header to the file.
-       print FILE "%YAML 1.1\n";
-       print FILE "---\n\n";
-
-       # Write header to file.
-       print FILE "#Autogenerated file. Any custom changes will be overwritten!\n";
-
-       # Allways load the whitelist.
-       print FILE " - whitelist.rules\n";
+       # Handle enabled / disabled rulefiles.
+       #
+       # Get enabled providers.
+       my @enabled_providers = &IDS::get_enabled_providers();
+
+       # Loop through the array of enabled providers.
+       foreach my $provider(@enabled_providers) {
+               # Array to store the rulefiles which belong to the current processed provider.
+               my @provider_rulefiles = ();
+
+               # Loop through the array of enabled rulefiles.
+               foreach my $rulesfile (@enabled_rulefiles) {
+                       # Split the rulefile name.
+                       my @filename_parts = split(/-/, "$rulesfile");
+
+                       # Assign vendor name for easy processings.
+                       my $vendor = @filename_parts[0];
+
+                       # Check if the rulesvendor is our current processed enabled provider.
+                       if ("$vendor" eq "$provider") {
+                               # Add the rulesfile to the array of provider rulesfiles.
+                               push(@provider_rulefiles, $rulesfile);
+                       }
 
-       # Check if the enabled_rulefiles array contains any entries.
-       if (@enabled_rulefiles) {
-               # Loop through the array of rulefiles which should be loaded and write them to the file.
-               foreach my $file (@enabled_rulefiles) {
-                       print FILE " - $file\n";
+                       # Check if any rulesfiles have been found for this provider.
+                       if (@provider_rulefiles) {
+                               # Call function and write the providers used rulesfile file.
+                               &IDS::write_used_provider_rulefiles_file($provider, @provider_rulefiles);
+                       }
                }
        }
 
-       # Close file after writing.
-       close(FILE);
+       # Call function to generate and write the used rulefiles file.
+       &IDS::write_main_used_rulefiles_file(@enabled_providers);
 
        # Lock the webpage and print message.
-       &working_notice("$Lang::tr{'snort working'}");
+       &working_notice("$Lang::tr{'ids apply ruleset changes'}");
 
        # Call oinkmaster to alter the ruleset.
        &IDS::oinkmaster();
 
        # Check if the IDS is running.
        if(&IDS::ids_is_running()) {
-               # Call suricatactrl to perform a reload.
-               &IDS::call_suricatactrl("reload");
+               # Check if a restart of suricata is required.
+               if ($suricata_restart_required) {
+                       # Call suricatactrl to perform the restart.
+                       &IDS::call_suricatactrl("restart");
+               } else {
+                       # Call suricatactrl to perform a reload.
+                       &IDS::call_suricatactrl("reload");
+               }
        }
 
        # Reload page.
        &reload();
 
 # Download new ruleset.
-} elsif ($cgiparams{'RULESET'} eq $Lang::tr{'download new ruleset'}) {
+} elsif ($cgiparams{'RULESET'} eq $Lang::tr{'update ruleset'}) {
        # Check if the red device is active.
        unless (-e "${General::swroot}/red/active") {
-               $errormessage = $Lang::tr{'could not download latest updates'};
+               $errormessage = "$Lang::tr{'could not download latest updates'} - $Lang::tr{'system is offline'}";
        }
 
        # Check if enought free disk space is availabe.
@@ -464,7 +567,7 @@ if ($cgiparams{'RULESET'} eq $Lang::tr{'update'}) {
        unless ($errormessage) {
                # Lock the webpage and print notice about downloading
                # a new ruleset.
-               &working_notice("$Lang::tr{'snort working'}");
+               &working_notice("$Lang::tr{'ids download new ruleset'}");
 
                # Call subfunction to download the ruleset.
                if(&IDS::downloadruleset()) {
@@ -489,61 +592,73 @@ if ($cgiparams{'RULESET'} eq $Lang::tr{'update'}) {
                        &reload();
                }
        }
-# Save snort settings.
+# Save IDS settings.
 } elsif ($cgiparams{'IDS'} eq $Lang::tr{'save'}) {
        my %oldidssettings;
        my $reload_page;
+       my $monitored_zones = 0;
 
        # Read-in current (old) IDS settings.
-       &General::readhash("$IDS::settingsdir/settings", \%oldidssettings);
+       &General::readhash("$IDS::ids_settings_file", \%oldidssettings);
 
        # Prevent form name from been stored in conf file.
        delete $cgiparams{'IDS'};
 
-       # Check if an oinkcode has been provided.
-       if ($cgiparams{'OINKCODE'}) {
-               # Check if the oinkcode contains unallowed chars.
-               unless ($cgiparams{'OINKCODE'} =~ /^[a-z0-9]+$/) {
-                       $errormessage = $Lang::tr{'invalid input for oink code'};
+       # Check if the IDS should be enabled.
+       if ($cgiparams{'ENABLE_IDS'} eq "on") {
+               # Check if any ruleset is available. Otherwise abort and display an error.
+               unless(%used_providers) {
+                       $errormessage = $Lang::tr{'ids no ruleset available'};
+               }
+
+               # Loop through the array of available interfaces.
+               foreach my $zone (@network_zones) {
+                       # Convert interface name into upper case.
+                       my $zone_upper = uc($zone);
+
+                       # Check if the IDS is enabled for this interaces.
+                       if ($cgiparams{"ENABLE_IDS_$zone_upper"}) {
+                               # Increase count.
+                               $monitored_zones++;
+                       }
+               }
+
+               # Check if at least one zone should be monitored, or show an error.
+               unless ($monitored_zones >= 1) {
+                       $errormessage = $Lang::tr{'ids no network zone'};
                }
        }
 
        # Go on if there are no error messages.
        if (!$errormessage) {
                # Store settings into settings file.
-               &General::writehash("$IDS::settingsdir/settings", \%cgiparams);
+               &General::writehash("$IDS::ids_settings_file", \%cgiparams);
        }
 
-       # Generate file to store the home net.
-       &generate_home_net_file();
-
        # Check if the the automatic rule update hass been touched.
        if($cgiparams{'AUTOUPDATE_INTERVAL'} ne $oldidssettings{'AUTOUPDATE_INTERVAL'}) {
                # Call suricatactrl to set the new interval.
                &IDS::call_suricatactrl("cron", $cgiparams{'AUTOUPDATE_INTERVAL'});
        }
 
-       # Check if the runmode has been changed.
-       if($cgiparams{'RUN_MODE'} ne $oldidssettings{'RUN_MODE'}) {
-               # Open modify sid's file for writing.
-               open(FILE, ">$modify_sids_file") or die "Could not write to $modify_sids_file. $!\n";
+       # Generate file to store the home net.
+       &IDS::generate_home_net_file();
 
-               # Write file header.
-               print FILE "#Autogenerated file. Any custom changes will be overwritten!\n";
+       # Generate file to the store the DNS servers.
+       &IDS::generate_dns_servers_file();
 
-               # Check if the configured runmode is IPS.
-               if ($cgiparams{'RUN_MODE'} eq 'IPS') {
-                       # Tell oinkmaster to switch all rules from alert to drop.
-                       print FILE "modifysid \* \"alert\" \| \"drop\"\n";
-               }
+       # Generate file to store the HTTP ports.
+       &IDS::generate_http_ports_file();
 
-               # Close file handle.
-               close(FILE);
+       # Write the modify sid's file and pass the taken ruleaction.
+       &IDS::write_modify_sids_file();
 
+       # Check if "MONITOR_TRAFFIC_ONLY" has been changed.
+       if($cgiparams{'MONITOR_TRAFFIC_ONLY'} ne $oldidssettings{'MONITOR_TRAFFIC_ONLY'}) {
                # Check if a ruleset exists.
-               if (%idsrules) {
+               if (%used_providers) {
                        # Lock the webpage and print message.
-                       &working_notice("$Lang::tr{'snort working'}");
+                       &working_notice("$Lang::tr{'ids working'}");
 
                        # Call oinkmaster to alter the ruleset.
                        &IDS::oinkmaster();
@@ -573,320 +688,587 @@ if ($cgiparams{'RULESET'} eq $Lang::tr{'update'}) {
                # Perform a reload of the page.
                &reload();
        }
-}
 
-# Read-in idssettings
-&General::readhash("$IDS::settingsdir/settings", \%idssettings);
+# Toggle Enable/Disable autoupdate for a provider
+} elsif ($cgiparams{'AUTOUPDATE'} eq $Lang::tr{'toggle enable disable'}) {
+       my %used_providers = ();
 
-# If the runmode has not been configured yet, set default value.
-unless(exists($idssettings{'RUN_MODE'})) {
-        # Set default to IPS.
-        $idssettings{'RUN_MODE'} = 'IPS';
-}
+       # Only go further, if an ID has been passed.
+       if ($cgiparams{'ID'}) {
+               # Assign the given ID.
+               my $id = $cgiparams{'ID'};
 
-# Read-in ignored hosts.
-&General::readhasharray("$IDS::settingsdir/ignored", \%ignored);
-
-$checked{'ENABLE_IDS'}{'off'} = '';
-$checked{'ENABLE_IDS'}{'on'} = '';
-$checked{'ENABLE_IDS'}{$idssettings{'ENABLE_IDS'}} = "checked='checked'";
-$checked{'RUN_MODE'}{'IDS'} = '';
-$checked{'RUN_MODE'}{'IPS'} = '';
-$checked{'RUN_MODE'}{$idssettings{'RUN_MODE'}} = "checked='checked'";
-$selected{'RULES'}{'nothing'} = '';
-$selected{'RULES'}{'community'} = '';
-$selected{'RULES'}{'emerging'} = '';
-$selected{'RULES'}{'registered'} = '';
-$selected{'RULES'}{'subscripted'} = '';
-$selected{'RULES'}{$idssettings{'RULES'}} = "selected='selected'";
-$selected{'AUTOUPDATE_INTERVAL'}{'off'} = '';
-$selected{'AUTOUPDATE_INTERVAL'}{'daily'} = '';
-$selected{'AUTOUPDATE_INTERVAL'}{'weekly'} = '';
-$selected{'AUTOUPDATE_INTERVAL'}{$idssettings{'AUTOUPDATE_INTERVAL'}} = "selected='selected'";
+               # Undef the given ID.
+               undef($cgiparams{'ID'});
 
-&Header::openpage($Lang::tr{'intrusion detection system'}, 1, '');
+               # Read-in providers settings file.
+               &General::readhasharray($IDS::providers_settings_file, \%used_providers);
 
-### Java Script ###
-print <<END
-<script>
-       // Tiny java script function to show/hide the rules
-       // of a given category.
-       function showhide(tblname) {
-               \$("#" + tblname).toggle();
+               # Grab the configured status of the corresponding entry.
+               my $status_autoupdate = $used_providers{$id}[2];
+
+               # Switch the status.
+               if ($status_autoupdate eq "disabled") {
+                       $status_autoupdate = "enabled";
+               } else {
+                       $status_autoupdate = "disabled";
+               }
+
+               # Modify the status of the existing entry.
+               $used_providers{$id} = ["$used_providers{$id}[0]", "$used_providers{$id}[1]", "$status_autoupdate", "$used_providers{$id}[3]"];
+
+               # Write the changed hash to the providers settings file.
+               &General::writehasharray($IDS::providers_settings_file, \%used_providers);
        }
-</script>
-END
-;
 
-&Header::openbigbox('100%', 'left', '', $errormessage);
+# Add/Edit a provider to the list of used providers.
+#
+} elsif (($cgiparams{'PROVIDERS'} eq "$Lang::tr{'add'}") || ($cgiparams{'PROVIDERS'} eq "$Lang::tr{'update'}")) {
+       my %used_providers = ();
 
-if ($errormessage) {
-       &Header::openbox('100%', 'left', $Lang::tr{'error messages'});
-       print "<class name='base'>$errormessage\n";
-       print "&nbsp;</class>\n";
-       &Header::closebox();
-}
+       # Read-in providers settings file.
+       &General::readhasharray("$IDS::providers_settings_file", \%used_providers);
 
-# Draw current state of the IDS
-&Header::openbox('100%', 'left', $Lang::tr{'intrusion detection system'});
+       # Assign some nice human-readable values.
+       my $provider = $cgiparams{'PROVIDER'};
+       my $subscription_code = $cgiparams{'SUBSCRIPTION_CODE'};
+       my $status_autoupdate;
 
-# Check if the IDS is running and obtain the process-id.
-my $pid = &IDS::ids_is_running();
+       # Handle autoupdate checkbox.
+       if ($cgiparams{'ENABLE_AUTOUPDATE'} eq "on") {
+               $status_autoupdate = "enabled";
+       } else {
+               $status_autoupdate = "disabled";
+       }
 
-# Display some useful information, if suricata daemon is running.
-if ($pid) {
-       # Gather used memory.
-       my $memory = &get_memory_usage($pid);
+       # Check if we are going to add a new provider.
+       if ($cgiparams{'PROVIDERS'} eq "$Lang::tr{'add'}") {
+               # Loop through the hash of used providers.
+               foreach my $id ( keys %used_providers) {
+                       # Check if the choosen provider is already in use.
+                       if ($used_providers{$id}[0] eq "$provider") {
+                               # XXX - add to language file.
+                               # Assign error message.
+                               $errormessage = "The choosen provider is already in use.";
+                       }
+               }
+       }
 
-       print <<END;
-               <table width='95%' cellspacing='0' class='tbl'>
-                       <tr>
-                               <th bgcolor='$color{'color20'}' colspan='3' align='left'><strong>$Lang::tr{'intrusion detection'}</strong></th>
-                       </tr>
+       # Check if the provider requires a subscription code.
+       if ($IDS::Ruleset::Providers{$provider}{'requires_subscription'} eq "True") {
+               # Check if an subscription code has been provided.
+               if ($subscription_code) {
+                       # Check if the code contains unallowed chars.
+                       unless ($subscription_code =~ /^[a-z0-9]+$/) {
+                               $errormessage = $Lang::tr{'invalid input for subscription code'};
+                       }
+               } else {
+                       # Print an error message, that an subsription code is required for this
+                       # provider.
+                       $errormessage = $Lang::tr{'ids subscription code required'};
+               }
+       }
 
-                       <tr>
-                               <td class='base'>$Lang::tr{'guardian daemon'}</td>
-                               <td align='center' colspan='2' width='75%' bgcolor='${Header::colourgreen}'><font color='white'><strong>$Lang::tr{'running'}</strong></font></td>
-                       </tr>
+       # Go further if there was no error.
+       if ($errormessage eq '') {
+               my $id;
+               my $status;
 
-                       <tr>
-                               <td class='base'></td>
-                               <td bgcolor='$color{'color20'}' align='center'><strong>PID</strong></td>
-                               <td bgcolor='$color{'color20'}' align='center'><strong>$Lang::tr{'memory'}</strong></td>
-                       </tr>
+               # Check if we should edit an existing entry and got an ID.
+               if (($cgiparams{'PROVIDERS'} eq $Lang::tr{'update'}) && ($cgiparams{'ID'})) {
+                       # Assin the provided id.
+                       $id = $cgiparams{'ID'};
 
-                       <tr>
-                               <td class='base'></td>
-                               <td bgcolor='$color{'color22'}' align='center'>$pid</td>
-                               <td bgcolor='$color{'color22'}' align='center'>$memory KB</td>
-                       </tr>
-               </table>
-END
-} else {
-       # Otherwise display a hint that the service is not launched.
-       print <<END;
-               <table width='95%' cellspacing='0' class='tbl'>
-                       <tr>
-                               <th bgcolor='$color{'color20'}' colspan='3' align='left'><strong>$Lang::tr{'intrusion detection'}</strong></th>
-                       </tr>
+                       # Undef the given ID.
+                       undef($cgiparams{'ID'});
 
-                       <tr>
-                               <td class='base'>$Lang::tr{'guardian daemon'}</td>
-                               <td align='center' width='75%' bgcolor='${Header::colourred}'><font color='white'><strong>$Lang::tr{'stopped'}</strong></font></td>
-                       </tr>
-               </table>
-END
-}
-&Header::closebox();
+                       # Grab the configured status of the corresponding entry.
+                       $status = $used_providers{$id}[3];
+               } else {
+                       # Each newly added entry automatically should be enabled.
+                       $status = "enabled";
 
-# Draw elements for IDS configuration.
-&Header::openbox('100%', 'center', $Lang::tr{'settings'});
+                       # Generate the ID for the new entry.
+                       #
+                       # Sort the keys by their ID and store them in an array.
+                       my @keys = sort { $a <=> $b } keys %used_providers;
 
-my $rulesdate;
+                       # Reverse the key array.
+                       my @reversed = reverse(@keys);
 
-# Check if a ruleset allready has been downloaded.
-if ( -f "$IDS::rulestarball"){
-       # Call stat on the filename to obtain detailed information.
-        my @Info = stat("$IDS::rulestarball");
+                       # Obtain the last used id.
+                       my $last_id = @reversed[0];
 
-       # Grab details about the creation time.
-        $rulesdate = localtime($Info[9]);
-}
+                       # Increase the last id by one and use it as id for the new entry.
+                       $id = ++$last_id;
+               }
 
-print <<END
-<form method='post' action='$ENV{'SCRIPT_NAME'}'>
-       <table width='100%' border='0'>
-               <tr>
-                       <td class='base' colspan='4'>
-                               <input type='checkbox' name='ENABLE_IDS' $checked{'ENABLE_IDS'}{'on'}>$Lang::tr{'ids activate'} $Lang::tr{'intrusion detection system'}
-                       </td>
-               </tr>
+               # Add/Modify the entry to/in the used providers hash..
+               $used_providers{$id} = ["$provider", "$subscription_code", "$status_autoupdate", "$status"];
 
-               <tr>
-                       <td colspan='4'><br><br></td>
-               </tr>
+               # Write the changed hash to the providers settings file.
+               &General::writehasharray($IDS::providers_settings_file, \%used_providers);
 
-               <tr>
-                       <td class='base' colspan='4'><b>$Lang::tr{'runmode'}</b></td>
-               </tr>
+               # Check if a new provider will be added.
+               if ($cgiparams{'PROVIDERS'} eq $Lang::tr{'add'}) {
+                       # Lock the webpage and print notice about downloading
+                       # a new ruleset.
+                       &working_notice("$Lang::tr{'ids working'}");
 
-               <tr>
-                       <td class='base' colspan='4'>
-                               <input type='radio' name='RUN_MODE' value='IDS' $checked{'RUN_MODE'}{'IDS'}>$Lang::tr{'intrusion detection system2'} &nbsp&nbsp&nbsp
-                               <input type='radio' name='RUN_MODE' value='IPS' $checked{'RUN_MODE'}{'IPS'}>$Lang::tr{'intrusion prevention system'}
-                       </td>
-               </tr>
+                       # Download the ruleset.
+                       &IDS::downloadruleset($provider);
 
-               <tr>
-                       <td colspan='4'><br></td>
-               </tr>
+                       # Extract the ruleset
+                       &IDS::extractruleset($provider);
 
-               <tr>
-                       <td colspan='4'><b>$Lang::tr{'ids traffic analyze'}</b><br></td>
-               </tr>
+                       # Move the ruleset.
+                       &IDS::move_tmp_ruleset();
 
-               <tr>
-END
-;
+                       # Cleanup temporary directory.
+                       &IDS::cleanup_tmp_directory();
 
-# Loop through the array of available networks and print config options.
-foreach my $zone (@network_zones) {
-       my $checked_input;
-       my $checked_forward;
+                       # Create new empty file for used rulefiles
+                       # for this provider.
+                       &IDS::write_used_provider_rulefiles_file($provider);
 
-       # Convert current zone name to upper case.
-       my $zone_upper = uc($zone);
+                       # Perform a reload of the page.
+                       &reload();
+               }
 
-       # Grab checkbox status from settings hash.
-       if ($idssettings{"ENABLE_IDS_$zone_upper"} eq "on") {
-               $checked_input = "checked = 'checked'";
+               # Undefine providers flag.
+               undef($cgiparams{'PROVIDERS'});
        }
 
-       print "<td class='base' width='25%'>\n";
-       print "<input type='checkbox' name='ENABLE_IDS_$zone_upper' $checked_input>$Lang::tr{'enabled on'} $Lang::tr{$zone}\n";
-       print "</td>\n";
-}
+## Toggle Enabled/Disabled for an existing provider.
+#
+} elsif ($cgiparams{'PROVIDERS'} eq $Lang::tr{'toggle enable disable'}) {
+       my %used_providers = ();
 
-print <<END
-               </tr>
+       # Only go further, if an ID has been passed.
+       if ($cgiparams{'ID'}) {
+               # Assign the given ID.
+               my $id = $cgiparams{'ID'};
 
-               <tr>
-                       <td colspan='4'><br><br></td>
-               </tr>
+               # Undef the given ID.
+               undef($cgiparams{'ID'});
 
-               <tr>
-                       <td colspan='2'><b>$Lang::tr{'ids rules update'}</b></td>
-                       <td colspan='2'><b>$Lang::tr{'ids automatic rules update'}</b></td>
-               </tr>
+               # Read-in file which contains the provider settings.
+               &General::readhasharray($IDS::providers_settings_file, \%used_providers);
 
-               <tr>
-                       <td colspan='2'><select name='RULES'>
-                               <option value='nothing' $selected{'RULES'}{'nothing'} >$Lang::tr{'no'}</option>
-                               <option value='emerging' $selected{'RULES'}{'emerging'} >$Lang::tr{'emerging rules'}</option>
-                               <option value='community' $selected{'RULES'}{'community'} >$Lang::tr{'community rules'}</option>
-                               <option value='registered' $selected{'RULES'}{'registered'} >$Lang::tr{'registered user rules'}</option>
-                               <option value='subscripted' $selected{'RULES'}{'subscripted'} >$Lang::tr{'subscripted user rules'}</option>
-                       </select>
-                       </td>
-
-                       <td colspan='2'>
-                               <select name='AUTOUPDATE_INTERVAL'>
-                                       <option value='off' $selected{'AUTOUPDATE_INTERVAL'}{'off'} >$Lang::tr{'no'}</option>
-                                       <option value='daily' $selected{'AUTOUPDATE_INTERVAL'}{'daily'} >$Lang::tr{'urlfilter daily'}</option>
-                                       <option value='weekly' $selected{'AUTOUPDATE_INTERVAL'}{'weekly'} >$Lang::tr{'urlfilter weekly'}</option>
-                               </select>
-                       </td>
-               </tr>
+               # Grab the configured status of the corresponding entry.
+               my $status = $used_providers{$id}[3];
 
-               <tr>
-                       <td colspan='4'>
-                               <br>$Lang::tr{'ids rules license'} <a href='https://www.snort.org/subscribe' target='_blank'>www.snort.org</a>$Lang::tr{'ids rules license1'}</br>
-                               <br>$Lang::tr{'ids rules license2'} <a href='https://www.snort.org/account/oinkcode' target='_blank'>Get an Oinkcode</a>, $Lang::tr{'ids rules license3'}</br>
-                       </td>
-               </tr>
+               # Switch the status.
+               if ($status eq "enabled") {
+                       $status = "disabled";
+               } else {
+                       $status = "enabled";
+               }
 
-               <tr>
-                       <td colspan='4' nowrap='nowrap'>Oinkcode:&nbsp;<input type='text' size='40' name='OINKCODE' value='$idssettings{'OINKCODE'}'></td>
-               </tr>
+               # Modify the status of the existing entry.
+               $used_providers{$id} = ["$used_providers{$id}[0]", "$used_providers{$id}[1]", "$used_providers{$id}[2]", "$status"];
 
-               <tr>
-                       <td colspan='4' align='left'><br>
-                               <input type='submit' name='RULESET' value='$Lang::tr{'download new ruleset'}'>&nbsp;$Lang::tr{'updates installed'}: $rulesdate
-                       </td>
+               # Write the changed hash to the providers settings file.
+               &General::writehasharray($IDS::providers_settings_file, \%used_providers);
 
-               </tr>
-       </table>
+               # Get all enabled providers.
+               my @enabled_providers = &IDS::get_enabled_providers();
 
-       <br><br>
+               # Write the main providers include file.
+               &IDS::write_main_used_rulefiles_file(@enabled_providers);
 
-       <table width='100%'>
-               <tr>
-                       <td align='right'><input type='submit' name='IDS' value='$Lang::tr{'save'}' /></td>
-               </tr>
-       </table>
-</form>
-END
-;
+               # Check if the IDS is running.
+               if(&IDS::ids_is_running()) {
+                       # Gather the amount of enabled providers (elements in the array).
+                       my $amount = @enabled_providers;
 
-&Header::closebox();
+                       # Check if there are still enabled ruleset providers.
+                       if ($amount >= 1) {
+                               # Call suricatactrl to perform a restart.
+                               &IDS::call_suricatactrl("restart");
 
-#
-# Whitelist / Ignorelist
-#
-&Header::openbox('100%', 'center', $Lang::tr{'guardian ignored hosts'});
+                       # No active ruleset provider, suricata has to be stopped.
+                       } else {
+                               # Stop suricata.
+                               &IDS::call_suricatactrl("stop");
+                       }
+               }
 
-print <<END;
-       <table width='100%'>
-               <tr>
-                       <td class='base' bgcolor='$color{'color20'}'><b>$Lang::tr{'ip address'}</b></td>
-                       <td class='base' bgcolor='$color{'color20'}'><b>$Lang::tr{'remark'}</b></td>
-                       <td class='base' colspan='3' bgcolor='$color{'color20'}'></td>
-               </tr>
-END
-               # Check if some hosts have been added to be ignored.
-               if (keys (%ignored)) {
-                       my $col = "";
+               # Undefine providers flag.
+               undef($cgiparams{'PROVIDERS'});
+       }
 
-                       # Loop through all entries of the hash.
-                       while( (my $key) = each %ignored)  {
-                               # Assign data array positions to some nice variable names.
-                               my $address = $ignored{$key}[0];
-                               my $remark = $ignored{$key}[1];
-                               my $status  = $ignored{$key}[2];
+## Remove provider from the list of used providers.
+#
+} elsif ($cgiparams{'PROVIDERS'} eq $Lang::tr{'remove'}) {
+       my %used_providers = ();
 
-                               # Check if the key (id) number is even or not.
-                               if ($cgiparams{'ID'} eq $key) {
-                                       $col="bgcolor='${Header::colouryellow}'";
-                               } elsif ($key % 2) {
-                                       $col="bgcolor='$color{'color22'}'";
-                               } else {
-                                       $col="bgcolor='$color{'color20'}'";
-                               }
+       # Read-in provider settings file.
+       &General::readhasharray($IDS::providers_settings_file, \%used_providers);
 
-                               # Choose icon for the checkbox.
-                               my $gif;
-                               my $gdesc;
+       # Grab the provider name bevore deleting it from hash.
+       my $provider = $used_providers{$cgiparams{'ID'}}[0];
+
+       # Drop entry from the hash.
+       delete($used_providers{$cgiparams{'ID'}});
+
+       # Undef the given ID.
+       undef($cgiparams{'ID'});
+
+       # Write the changed hash to the provide settings file.
+       &General::writehasharray($IDS::providers_settings_file, \%used_providers);
+
+       # Drop the stored ruleset file.
+       &IDS::drop_dl_rulesfile($provider);
+
+       # Get the name of the provider rulessets include file.
+       my $provider_used_rulefile = &get_used_provider_rulesfile_file($provider);
+
+       # Drop the file, it is not longer needed.
+       unlink("$provider_used_rulefile");
+
+       # Regenerate ruleset.
+       &IDS::oinkmaster();
+
+       # Gather all enabled providers.
+       my @enabled_providers = &IDS::get_enabled_providers();
+
+       # Regenerate main providers include file.
+       &IDS::write_main_used_rulefiles_file(@enabled_providers);
+
+       # Check if the IDS is running.
+       if(&IDS::ids_is_running()) {
+               # Get amount of enabled providers.
+               my $amount = @enabled_providers;
+
+               # Check if at least one enabled provider remains.
+               if ($amount >= 1) {
+                       # Call suricatactrl to perform a reload.
+                       &IDS::call_suricatactrl("restart");
+
+               # Stop suricata if no enabled provider remains.
+               } else {
+                       # Call suricatactrel to perform the stop.
+                       &IDS::call_suricatactrl("stop");
+               }
+       }
+       
+       # Undefine providers flag.
+       undef($cgiparams{'PROVIDERS'});
+}
+
+&Header::openpage($Lang::tr{'intrusion detection system'}, 1, '');
+
+&Header::openbigbox('100%', 'left', '', $errormessage);
+
+&show_display_error_message();
+
+if ($cgiparams{'RULESET'} eq "$Lang::tr{'ids customize ruleset'}" ) {
+       &show_customize_ruleset();
+} elsif ($cgiparams{'PROVIDERS'} ne "") {
+       &show_add_provider();
+} else {
+       &show_mainpage();
+}
+
+&Header::closebigbox();
+&Header::closepage();
+
+#
+## Tiny function to show if a error message happened.
+#
+sub show_display_error_message() {
+       if ($errormessage) {
+               &Header::openbox('100%', 'left', $Lang::tr{'error messages'});
+                       print "<class name='base'>$errormessage\n";
+                       print "&nbsp;</class>\n";
+               &Header::closebox();
+       }
+}
+
+#
+## Function to display the main IDS page.
+#
+sub show_mainpage() {
+       # Read-in idssettings and provider settings.
+       &General::readhash("$IDS::ids_settings_file", \%idssettings);
+       &General::readhasharray("$IDS::providers_settings_file", \%used_providers);
+
+       # If no autoupdate intervall has been configured yet, set default value.
+       unless(exists($idssettings{'AUTOUPDATE_INTERVAL'})) {
+               # Set default to "weekly".
+               $idssettings{'AUTOUPDATE_INTERVAL'} = 'weekly';
+       }
+
+       # Read-in ignored hosts.
+       &General::readhasharray("$IDS::settingsdir/ignored", \%ignored);
+
+       $checked{'ENABLE_IDS'}{'off'} = '';
+       $checked{'ENABLE_IDS'}{'on'} = '';
+       $checked{'ENABLE_IDS'}{$idssettings{'ENABLE_IDS'}} = "checked='checked'";
+       $checked{'MONITOR_TRAFFIC_ONLY'}{'off'} = '';
+       $checked{'MONITOR_TRAFFIC_ONLY'}{'on'} = '';
+       $checked{'MONITOR_TRAFFIC_ONLY'}{$idssettings{'MONITOR_TRAFFIC_ONLY'}} = "checked='checked'";
+       $selected{'AUTOUPDATE_INTERVAL'}{'off'} = '';
+       $selected{'AUTOUPDATE_INTERVAL'}{'daily'} = '';
+       $selected{'AUTOUPDATE_INTERVAL'}{'weekly'} = '';
+       $selected{'AUTOUPDATE_INTERVAL'}{$idssettings{'AUTOUPDATE_INTERVAL'}} = "selected='selected'";
+
+       # Draw current state of the IDS
+       &Header::openbox('100%', 'left', $Lang::tr{'intrusion detection system'});
+
+       # Check if the IDS is running and obtain the process-id.
+       my $pid = &IDS::ids_is_running();
+
+       # Display some useful information, if suricata daemon is running.
+       if ($pid) {
+               # Gather used memory.
+               my $memory = &get_memory_usage($pid);
+
+               print <<END;
+                       <table width='95%' cellspacing='0' class='tbl'>
+                               <tr>
+                                       <th bgcolor='$color{'color20'}' colspan='3' align='left'><strong>$Lang::tr{'intrusion detection'}</strong></th>
+                               </tr>
+
+                               <tr>
+                                       <td class='base'>$Lang::tr{'guardian daemon'}</td>
+                                       <td align='center' colspan='2' width='75%' bgcolor='${Header::colourgreen}'><font color='white'><strong>$Lang::tr{'running'}</strong></font></td>
+                               </tr>
+
+                               <tr>
+                                       <td class='base'></td>
+                                       <td bgcolor='$color{'color20'}' align='center'><strong>PID</strong></td>
+                                       <td bgcolor='$color{'color20'}' align='center'><strong>$Lang::tr{'memory'}</strong></td>
+                               </tr>
+
+                               <tr>
+                                       <td class='base'></td>
+                                       <td bgcolor='$color{'color22'}' align='center'>$pid</td>
+                                       <td bgcolor='$color{'color22'}' align='center'>$memory KB</td>
+                               </tr>
+                       </table>
+END
+       } else {
+               # Otherwise display a hint that the service is not launched.
+               print <<END;
+                       <table width='95%' cellspacing='0' class='tbl'>
+                               <tr>
+                                       <th bgcolor='$color{'color20'}' colspan='3' align='left'><strong>$Lang::tr{'intrusion detection'}</strong></th>
+                               </tr>
+
+                               <tr>
+                                       <td class='base'>$Lang::tr{'guardian daemon'}</td>
+                                       <td align='center' width='75%' bgcolor='${Header::colourred}'><font color='white'><strong>$Lang::tr{'stopped'}</strong></font></td>
+                               </tr>
+                       </table>
+END
+       }
+
+       # Only show this area, if at least one ruleset provider is configured.
+       if (%used_providers) {
+
+print <<END
+
+               <br><br><h2>$Lang::tr{'settings'}</h2>
+
+               <form method='post' action='$ENV{'SCRIPT_NAME'}'>
+                       <table width='100%' border='0'>
+                               <tr>
+                                       <td class='base' colspan='2'>
+                                               <input type='checkbox' name='ENABLE_IDS' $checked{'ENABLE_IDS'}{'on'}>&nbsp;$Lang::tr{'ids enable'}
+                                       </td>
+
+                                       <td class='base' colspan='2'>
+                                               <input type='checkbox' name='MONITOR_TRAFFIC_ONLY' $checked{'MONITOR_TRAFFIC_ONLY'}{'on'}>&nbsp;$Lang::tr{'ids monitor traffic only'}
+                               </td>
+                               </tr>
+
+                               <tr>
+                                       <td><br><br></td>
+                                       <td><br><br></td>
+                                       <td><br><br></td>
+                                       <td><br><br></td>
+                               </tr>
+
+                               <tr>
+                                       <td colspan='4'><b>$Lang::tr{'ids monitored interfaces'}</b><br></td>
+                               </tr>
+
+                               <tr>
+END
+;
+
+               # Loop through the array of available networks and print config options.
+               foreach my $zone (@network_zones) {
+                       my $checked_input;
+                       my $checked_forward;
+
+                       # Convert current zone name to upper case.
+                       my $zone_upper = uc($zone);
+
+                       # Set zone name.
+                       my $zone_name = $zone;
+
+                       # Dirty hack to get the correct language string for the red zone.
+                       if ($zone eq "red") {
+                               $zone_name = "red1";
+                       }
+
+                       # Grab checkbox status from settings hash.
+                       if ($idssettings{"ENABLE_IDS_$zone_upper"} eq "on") {
+                               $checked_input = "checked = 'checked'";
+                       }
+
+                       print "<td class='base' width='20%'>\n";
+                       print "<input type='checkbox' name='ENABLE_IDS_$zone_upper' $checked_input>\n";
+                       print "&nbsp;$Lang::tr{'enabled on'}<font color='$colourhash{$zone}'> $Lang::tr{$zone_name}</font>\n";
+                       print "</td>\n";
+               }
+
+print <<END
+                               </tr>
+
+                               <tr>
+                                       <td><br><br></td>
+                                       <td><br><br></td>
+                                       <td><br><br></td>
+                                       <td><br><br></td>
+                               </tr>
+
+                               <tr>
+                                       <td colspan='4'><b>$Lang::tr{'ids automatic rules update'}</b></td>
+                               </tr>
+
+                               <tr>
+                                       <td>
+                                               <select name='AUTOUPDATE_INTERVAL'>
+                                                       <option value='off' $selected{'AUTOUPDATE_INTERVAL'}{'off'} >- $Lang::tr{'Disabled'} -</option>
+                                                       <option value='daily' $selected{'AUTOUPDATE_INTERVAL'}{'daily'} >$Lang::tr{'Daily'}</option>
+                                                       <option value='weekly' $selected{'AUTOUPDATE_INTERVAL'}{'weekly'} >$Lang::tr{'Weekly'}</option>
+                                               </select>
+                                       </td>
+                               </tr>
+                       </table>
+
+                       <br><br>
+
+                       <table width='100%'>
+                               <tr>
+                                       <td align='right'><input type='submit' name='IDS' value='$Lang::tr{'save'}' /></td>
+                               </tr>
+                       </table>
+               </form>
+END
+;
+
+       }
+
+       &Header::closebox();
+
+       #
+       # Used Ruleset Providers section.
+       #
+       &Header::openbox('100%', 'center', $Lang::tr{'ids ruleset settings'});
+
+print <<END;
+       <table width='100%' border='0'>
+               <tr>
+                       <td class='base' bgcolor='$color{'color20'}'><b>$Lang::tr{'ids provider'}</b></td>
+                       <td class='base' bgcolor='$color{'color20'}'><b>$Lang::tr{'date'}</b></td>
+                       <td class='base' bgcolor='$color{'color20'}' align='center'><b>$Lang::tr{'ids autoupdates'}</b></td>
+                       <td class='base' bgcolor='$color{'color20'}'></td>
+                       <td class='base' colspan='3' bgcolor='$color{'color20'}'></td>
+               </tr>
+END
+               # Check if some providers has been configured.
+               if (keys (%used_providers)) {
+                       my $col = "";
+
+                       # Loop through all entries of the hash.
+                       foreach my $id (sort keys(%used_providers)) {
+                               # Assign data array positions to some nice variable names.
+                               my $provider = $used_providers{$id}[0];
+                               my $provider_name = &get_provider_name($provider);
+
+                               #XXX my $rulesdate = &IDS::get_ruleset_date($provider);
+                               my $rulesdate;
+
+                               my $subscription_code = $used_providers{$id}[1];
+                               my $autoupdate_status = $used_providers{$id}[2];
+                               my $status  = $used_providers{$id}[3];
+
+                               # Check if the item number is even or not.
+                               if ($id % 2) {
+                                       $col="bgcolor='$color{'color22'}'";
+                               } else {
+                                       $col="bgcolor='$color{'color20'}'";
+                               }
+
+                               # Choose icons for the checkboxes.
+                               my $status_gif;
+                               my $status_gdesc;
+                               my $autoupdate_status_gif;
+                               my $autoupdate_status_gdesc;
 
                                # Check if the status is enabled and select the correct image and description.
                                if ($status eq 'enabled' ) {
-                                       $gif = 'on.gif';
-                                       $gdesc = $Lang::tr{'click to disable'};
+                                       $status_gif = 'on.gif';
+                                       $status_gdesc = $Lang::tr{'click to disable'};
                                } else {
-                                       $gif = 'off.gif';
-                                       $gdesc = $Lang::tr{'click to enable'};
+                                       $status_gif = 'off.gif';
+                                       $status_gdesc = $Lang::tr{'click to enable'};
+                               }
+
+                               # Check if the autoupdate status is enabled and select the correct image and description.
+                               if ($autoupdate_status eq 'enabled') {
+                                       $autoupdate_status_gif = 'on.gif';
+                                       $autoupdate_status_gdesc = $Lang::tr{'click to disable'};
+                               } else {
+                                       $autoupdate_status_gif = 'off.gif';
+                                       $autoupdate_status_gdesc = $Lang::tr{'click to enable'};
                                }
 
 print <<END;
                                <tr>
-                                       <td width='20%' class='base' $col>$address</td>
-                                       <td width='65%' class='base' $col>$remark</td>
+                                       <td width='33%' class='base' $col>$provider_name</td>
+                                       <td width='30%' class='base' $col>$rulesdate</td>
 
                                        <td align='center' $col>
                                                <form method='post' action='$ENV{'SCRIPT_NAME'}'>
-                                                       <input type='hidden' name='WHITELIST' value='$Lang::tr{'toggle enable disable'}' />
-                                                       <input type='image' name='$Lang::tr{'toggle enable disable'}' src='/images/$gif' alt='$gdesc' title='$gdesc' />
-                                                       <input type='hidden' name='ID' value='$key' />
+                                                       <input type='hidden' name='AUTOUPDATE' value='$Lang::tr{'toggle enable disable'}' />
+                                                       <input type='image' name='$Lang::tr{'toggle enable disable'}' src='/images/$autoupdate_status_gif' alt='$autoupdate_status_gdesc' title='$autoupdate_status_gdesc' />
+                                                       <input type='hidden' name='ID' value='$id' />
                                                </form>
                                        </td>
 
                                        <td align='center' $col>
                                                <form method='post' action='$ENV{'SCRIPT_NAME'}'>
-                                                       <input type='hidden' name='WHITELIST' value='$Lang::tr{'edit'}' />
-                                                       <input type='image' name='$Lang::tr{'edit'}' src='/images/edit.gif' alt='$Lang::tr{'edit'}' title='$Lang::tr{'edit'}' />
-                                                       <input type='hidden' name='ID' value='$key' />
+                                                       <input type='hidden' name='PROVIDERS' value='$Lang::tr{'toggle enable disable'}'>
+                                                       <input type='image' name='$Lang::tr{'toggle enable disable'}' src='/images/$status_gif' alt='$status_gdesc' title='$status_gdesc'>
+                                                       <input type='hidden' name='ID' value='$id'>
                                                </form>
                                        </td>
 
                                        <td align='center' $col>
-                                               <form method='post' name='$key' action='$ENV{'SCRIPT_NAME'}'>
+                                               <form method='post' action='$ENV{'SCRIPT_NAME'}'>
+                                                       <input type='hidden' name='PROVIDERS' value='$Lang::tr{'edit'}'>
+                                                       <input type='image' name='$Lang::tr{'edit'}' src='/images/edit.gif' alt='$Lang::tr{'edit'}' title='$Lang::tr{'edit'}'>
+                                                       <input type='hidden' name='ID' value='$id'>
+                                               </form>
+                                       </td>
+
+                                       <td align='center' $col>
+                                               <form method='post' name='$provider' action='$ENV{'SCRIPT_NAME'}'>
                                                        <input type='image' name='$Lang::tr{'remove'}' src='/images/delete.gif' title='$Lang::tr{'remove'}' alt='$Lang::tr{'remove'}'>
-                                                       <input type='hidden' name='ID' value='$key'>
-                                                       <input type='hidden' name='WHITELIST' value='$Lang::tr{'remove'}'>
+                                                       <input type='hidden' name='ID' value='$id'>
+                                                       <input type='hidden' name='PROVIDERS' value='$Lang::tr{'remove'}'>
                                                </form>
                                        </td>
                                </tr>
 END
                        }
+
                } else {
                        # Print notice that currently no hosts are ignored.
                        print "<tr>\n";
@@ -902,59 +1284,194 @@ print <<END;
        <hr>
        <br>
 
-       <div align='center'>
+       <div align='right'>
                <table width='100%'>
+                       <form method='post' action='$ENV{'SCRIPT_NAME'}'>
+                               <tr>
 END
 
-       # Assign correct headline and button text.
-       my $buttontext;
-       my $entry_address;
-       my $entry_remark;
+                                       # Only show this button if a ruleset provider is configured.
+                                       if (%used_providers) {
+                                               print "<input type='submit' name='RULESET' value='$Lang::tr{'ids customize ruleset'}'>\n";
+                                       }
+print <<END;
+                                       <input type='submit' name='PROVIDERS' value='$Lang::tr{'ids add provider'}'>
+                               </tr>
+                       </form>
+               </table>
+       </div>
+END
 
-       # Check if an ID (key) has been given, in this case an existing entry should be edited.
-       if ($cgiparams{'ID'} ne '') {
-               $buttontext = $Lang::tr{'update'};
-                       print "<tr><td class='boldbase' colspan='3'><b>$Lang::tr{'update'}</b></td></tr>\n";
+       &Header::closebox();
 
-                       # Grab address and remark for the given key.
-                       $entry_address = $ignored{$cgiparams{'ID'}}[0];
-                       $entry_remark = $ignored{$cgiparams{'ID'}}[1];
-               } else {
-                       $buttontext = $Lang::tr{'add'};
-                       print "<tr><td class='boldbase' colspan='3'><b>$Lang::tr{'dnsforward add a new entry'}</b></td></tr>\n";
-               }
+       #
+       # Whitelist / Ignorelist
+       #
+       &Header::openbox('100%', 'center', $Lang::tr{'ids ignored hosts'});
+
+       print <<END;
+       <table width='100%'>
+               <tr>
+                       <td class='base' bgcolor='$color{'color20'}'><b>$Lang::tr{'ip address'}</b></td>
+                       <td class='base' bgcolor='$color{'color20'}'><b>$Lang::tr{'remark'}</b></td>
+                       <td class='base' colspan='3' bgcolor='$color{'color20'}'></td>
+               </tr>
+END
+               # Check if some hosts have been added to be ignored.
+               if (keys (%ignored)) {
+                       my $col = "";
+
+                       # Loop through all entries of the hash.
+                       while( (my $key) = each %ignored)  {
+                               # Assign data array positions to some nice variable names.
+                               my $address = $ignored{$key}[0];
+                               my $remark = $ignored{$key}[1];
+                               my $status  = $ignored{$key}[2];
+
+                               # Check if the key (id) number is even or not.
+                               if ($cgiparams{'ID'} eq $key) {
+                                       $col="bgcolor='${Header::colouryellow}'";
+                               } elsif ($key % 2) {
+                                       $col="bgcolor='$color{'color22'}'";
+                               } else {
+                                       $col="bgcolor='$color{'color20'}'";
+                               }
+
+                               # Choose icon for the checkbox.
+                               my $gif;
+                               my $gdesc;
+
+                               # Check if the status is enabled and select the correct image and description.
+                               if ($status eq 'enabled' ) {
+                                       $gif = 'on.gif';
+                                       $gdesc = $Lang::tr{'click to disable'};
+                               } else {
+                                       $gif = 'off.gif';
+                                       $gdesc = $Lang::tr{'click to enable'};
+                               }
 
 print <<END;
-                       <form method='post' action='$ENV{'SCRIPT_NAME'}'>
-                       <input type='hidden' name='ID' value='$cgiparams{'ID'}'>
-                       <tr>
-                               <td width='30%'>$Lang::tr{'ip address'}: </td>
-                               <td width='50%'><input type='text' name='IGNORE_ENTRY_ADDRESS' value='$entry_address' size='24' /></td>
+                               <tr>
+                                       <td width='20%' class='base' $col>$address</td>
+                                       <td width='65%' class='base' $col>$remark</td>
 
-                               <td width='30%'>$Lang::tr{'remark'}: </td>
-                               <td wicth='50%'><input type='text' name=IGNORE_ENTRY_REMARK value='$entry_remark' size='24' /></td>
-                               <td align='center' width='20%'><input type='submit' name='WHITELIST' value='$buttontext' /></td>
-                       </tr>
-                       </form>
-               </table>
-       </div>
+                                       <td align='center' $col>
+                                               <form method='post' action='$ENV{'SCRIPT_NAME'}'>
+                                                       <input type='hidden' name='WHITELIST' value='$Lang::tr{'toggle enable disable'}'>
+                                                       <input type='image' name='$Lang::tr{'toggle enable disable'}' src='/images/$gif' alt='$gdesc' title='$gdesc'>
+                                                       <input type='hidden' name='ID' value='$key'>
+                                               </form>
+                                       </td>
+
+                                       <td align='center' $col>
+                                               <form method='post' action='$ENV{'SCRIPT_NAME'}'>
+                                                       <input type='hidden' name='WHITELIST' value='$Lang::tr{'edit'}'>
+                                                       <input type='image' name='$Lang::tr{'edit'}' src='/images/edit.gif' alt='$Lang::tr{'edit'}' title='$Lang::tr{'edit'}'>
+                                                       <input type='hidden' name='ID' value='$key'>
+                                               </form>
+                                       </td>
+
+                                       <td align='center' $col>
+                                               <form method='post' name='$key' action='$ENV{'SCRIPT_NAME'}'>
+                                                       <input type='image' name='$Lang::tr{'remove'}' src='/images/delete.gif' title='$Lang::tr{'remove'}' alt='$Lang::tr{'remove'}'>
+                                                       <input type='hidden' name='ID' value='$key'>
+                                                       <input type='hidden' name='WHITELIST' value='$Lang::tr{'remove'}'>
+                                               </form>
+                                               </td>
+                                       </tr>
 END
+                               }
+                       } else {
+                               # Print notice that currently no hosts are ignored.
+                               print "<tr>\n";
+                               print "<td class='base' colspan='2'>$Lang::tr{'guardian no entries'}</td>\n";
+                               print "</tr>\n";
+                       }
+
+               print "</table>\n";
 
-&Header::closebox();
+               # Section to add new elements or edit existing ones.
+print <<END;
+               <br>
+               <hr>
+               <br>
+       
+               <div align='center'>
+                       <table width='100%'>
+END
 
-# Only show the section for configuring the ruleset if one is present.
-if (%idsrules) {
-       &Header::openbox('100%', 'LEFT', $Lang::tr{'intrusion detection system rules'});
+               # Assign correct headline and button text.
+               my $buttontext;
+               my $entry_address;
+               my $entry_remark;
 
+               # Check if an ID (key) has been given, in this case an existing entry should be edited.
+               if ($cgiparams{'ID'} ne '') {
+                       $buttontext = $Lang::tr{'update'};
+                               print "<tr><td class='boldbase' colspan='3'><b>$Lang::tr{'update'}</b></td></tr>\n";
+
+                               # Grab address and remark for the given key.
+                               $entry_address = $ignored{$cgiparams{'ID'}}[0];
+                               $entry_remark = $ignored{$cgiparams{'ID'}}[1];
+                       } else {
+                               $buttontext = $Lang::tr{'add'};
+                               print "<tr><td class='boldbase' colspan='3'><b>$Lang::tr{'dnsforward add a new entry'}</b></td></tr>\n";
+                       }
+
+print <<END;
+                               <form method='post' action='$ENV{'SCRIPT_NAME'}'>
+                               <input type='hidden' name='ID' value='$cgiparams{'ID'}'>
+                               <tr>
+                                       <td width='30%'>$Lang::tr{'ip address'}: </td>
+                                       <td width='50%'><input type='text' name='IGNORE_ENTRY_ADDRESS' value='$entry_address' size='24' /></td>
+
+                                       <td width='30%'>$Lang::tr{'remark'}: </td>
+                                       <td wicth='50%'><input type='text' name=IGNORE_ENTRY_REMARK value='$entry_remark' size='24' /></td>
+                                       <td align='center' width='20%'><input type='submit' name='WHITELIST' value='$buttontext' /></td>
+                               </tr>
+                               </form>
+                       </table>
+               </div>
+END
+
+       &Header::closebox();
+}
+
+#
+## Function to show the customize ruleset section.
+#
+sub show_customize_ruleset() {
+       ### Java Script ###
+       print"<script>\n";
+
+       # Java script variable declaration for show and hide.
+       print"var show = \"$Lang::tr{'ids show'}\"\;\n";
+       print"var hide = \"$Lang::tr{'ids hide'}\"\;\n";
+
+print <<END
+       // Tiny java script function to show/hide the rules
+       // of a given category.
+       function showhide(tblname) {
+               \$("#" + tblname).toggle();
+
+               // Get current content of the span element.
+               var content = document.getElementById("span_" + tblname);
+
+               if (content.innerHTML === show) {
+                       content.innerHTML = hide;
+               } else {
+                       content.innerHTML = show;
+               }
+       }
+       </script>
+END
+;
+       &Header::openbox('100%', 'LEFT', "$Lang::tr{'intrusion detection system rules'}" );
                print"<form method='POST' action='$ENV{'SCRIPT_NAME'}'>\n";
 
                # Output display table for rule files
                print "<table width='100%'>\n";
 
-               # Local variable required for java script to show/hide
-               # rules of a rulefile.
-               my $rulesetcount = 1;
-
                # Loop over each rule file
                foreach my $rulefile (sort keys(%idsrules)) {
                        my $rulechecked = '';
@@ -964,6 +1481,9 @@ if (%idsrules) {
                                $rulechecked = 'CHECKED';
                        }
 
+                       # Convert rulefile name into category name.
+                       my $categoryname = &_rulefile_to_category($rulefile);
+
                        # Table and rows for the rule files.
                        print"<tr>\n";
                        print"<td class='base' width='5%'>\n";
@@ -971,12 +1491,12 @@ if (%idsrules) {
                        print"</td>\n";
                        print"<td class='base' width='90%'><b>$rulefile</b></td>\n";
                        print"<td class='base' width='5%' align='right'>\n";
-                       print"<a href=\"javascript:showhide('ruleset$rulesetcount')\">SHOW</a>\n";
+                       print"<a href=\"javascript:showhide('$categoryname')\"><span id='span_$categoryname'>$Lang::tr{'ids show'}</span></a>\n";
                        print"</td>\n";
                        print"</tr>\n";
 
                        # Rows which will be hidden per default and will contain the single rules.
-                       print"<tr  style='display:none' id='ruleset$rulesetcount'>\n";
+                       print"<tr  style='display:none' id='$categoryname'>\n";
                        print"<td colspan='3'>\n";
 
                        # Local vars
@@ -1032,30 +1552,222 @@ if (%idsrules) {
 
                        # Close display table
                        print "</tr></table></td></tr>";
-
-                       # Finished whith the rule file, increase count.
-                       $rulesetcount++;
                }
 
                # Close display table
                print "</table>";
 
-print <<END
+               print <<END
 <table width='100%'>
 <tr>
-       <td width='100%' align='right'><input type='submit' name='RULESET' value='$Lang::tr{'update'}'>
-               &nbsp; <!-- space for future online help link -->
+       <td width='100%' align='right'>
+               <input type='submit' value='$Lang::tr{'fwhost back'}'>
+               <input type='submit' name='RULESET' value='$Lang::tr{'ids apply'}'>
        </td>
 </tr>
 </table>
 </form>
 END
 ;
-       &Header::closebox();
+               &Header::closebox();
+       }
 }
 
-&Header::closebigbox();
-&Header::closepage();
+#
+## Function to show section for add/edit a provider.
+#
+sub show_add_provider() {
+       my %used_providers = ();
+       my @subscription_providers;
+
+       # Read -in providers settings file.
+       &General::readhasharray("$IDS::providers_settings_file", \%used_providers);
+
+       # Get all supported ruleset providers.
+       my @ruleset_providers = &IDS::get_ruleset_providers();
+
+       ### Java Script ###
+       print "<script>\n";
+
+       # Generate Java Script Object which contains the URL of the providers.
+       print "\t// Object, which contains the webpages of the ruleset providers.\n";
+       print "\tvar url = {\n";
+
+       # Loop through the array of supported providers.
+       foreach my $provider (@ruleset_providers) {
+               # Check if the provider requires a subscription.
+               if ($IDS::Ruleset::Providers{$provider}{'requires_subscription'} eq "True") {
+                       # Add the provider to the array of subscription_providers.
+                       push(@subscription_providers, $provider);
+               }
+
+               # Grab the URL for the provider.
+               my $url = $IDS::Ruleset::Providers{$provider}{'website'};
+
+               # Print the URL to the Java Script Object.
+               print "\t\t$provider: \"$url\"\,\n";
+       }
+
+       # Close the Java Script Object declaration.
+       print "\t}\;\n\n";
+
+       # Generate Java Script Array which contains the provider that requires a subscription.
+       my $line = "";
+       $line = join("', '", @subscription_providers);
+
+       print "\t// Array which contains the providers that requires a subscription.\n";
+       print "\tsubscription_provider = ['$line']\;\n\n";
+
+print <<END
+       // Java Script function to swap the text input field for
+       // entering a subscription code.
+       var update_provider = function() {
+               if(inArray(\$('#PROVIDER').val(), subscription_provider)) {
+                       \$('.subscription_code').show();
+               } else {
+                       \$('.subscription_code').hide();
+               }
+
+               // Call function to change the website url.
+               change_url(\$('#PROVIDER').val());
+       };
+
+       // Java Script function to check if a given value is part of
+       // an array.
+       function inArray(value,array) {
+               var count=array.length;
+
+               for(var i=0;i<count;i++) {
+                       if(array[i]===value){
+                               return true;
+                       }
+               }
+
+               return false;
+       }
+
+       // Tiny function to change the website url based on the selected element in the "PROVIDERS"
+       // dropdown menu.
+       function change_url(provider) {
+               // Get and change the href to the corresponding url.
+               document.getElementById("website").href = url[provider];
+       }
+
+       // JQuery function to call corresponding function when
+       // the ruleset provider is changed or the page is loaded for showing/hiding
+       // the subscription_code area.
+       \$(document).ready(function() {
+               \$('#PROVIDER').change(update_provider);
+                       update_provider();
+       });
+
+       </script>
+END
+;
+
+       &Header::openbox('100%', 'center', $Lang::tr{'ids provider settings'});
+
+       # Check if an existing provider should be edited.
+       if($cgiparams{'PROVIDERS'} eq "$Lang::tr{'edit'}") {
+               # Check if autoupdate is enabled for this provider.
+               if ($used_providers{$cgiparams{'ID'}}[2] eq "enabled") {
+                       # Set the checkbox to be checked.
+                       $checked{'ENABLE_AUTOUPDATE'} = "checked='checked'";
+               }
+       } elsif ($cgiparams{'PROVIDERS'} eq "$Lang::tr{'ids add provider'}") {
+               # Set the autoupdate to true as default.
+               $checked{'ENABLE_AUTOUPDATE'} = "checked='checked'";
+       }
+
+print <<END
+       <form method='post' action='$ENV{'SCRIPT_NAME'}'>
+               <table width='100%' border='0'>
+                       <tr>
+                               <td colspan='2'><b>$Lang::tr{'ids provider'}</b></td>
+                       </tr>
+
+                       <tr>
+                               <td width='40%'>
+                                       <input type='hidden' name='ID' value='$cgiparams{'ID'}'>
+                                       <select name='PROVIDER' id='PROVIDER'>
+END
+;
+                                               # Loop through the array of ruleset providers.
+                                               foreach my $provider (@ruleset_providers) {
+                                                       # Get the provider name.
+                                                       my $provider_name = &get_provider_name($provider);
+
+                                                       # Pre-select the provider if one is given.
+                                                       if (($used_providers{$cgiparams{'ID'}}[0] eq "$provider") || ($cgiparams{'PROVIDER'} eq "$provider")) {
+                                                               $selected{$provider} = "selected='selected'";
+                                                       }
+
+                                                       # Add the provider to the dropdown menu.
+                                                       print "<option value='$provider' $selected{$provider}>$provider_name</option>\n";
+                                               }
+print <<END
+                                       </select>
+                               </td>
+
+                               <td width='60%'>
+                                       <b><a id="website" target="_blank" href="#">$Lang::tr{'ids visit provider website'}</a></b>
+                               </td>
+                       </tr>
+
+                       <tr>
+                               <td colspan='2'><br><br></td>
+                       </tr>
+
+                       <tr class='subscription_code' style='display:none' id='subscription_code'>
+                               <td colspan='2'>
+                                       <table border='0'>
+                                               <tr>
+                                                       <td>
+                                                               <b>$Lang::tr{'subscription code'}</b>
+                                                       </td>
+                                               </tr>
+
+                                               <tr>
+                                                       <td>
+                                                               <input type='text' size='40' name='SUBSCRIPTION_CODE' value='$used_providers{$cgiparams{'ID'}}[1]'>
+                                                       </td>
+                                               </tr>
+
+                                               <tr>
+                                                       <td><br><br></td>
+                                               </tr>
+                                       </table>
+                               </td>
+                       </tr>
+
+                       <tr>
+                               <td colspan='2'>
+                                       <input type='checkbox' name='ENABLE_AUTOUPDATE' $checked{'ENABLE_AUTOUPDATE'}>&nbsp;$Lang::tr{'ids enable automatic updates'}
+                               </td>
+                       </tr>
+
+                       <tr>
+                               <td colspan='2' align='right'>
+                                       <input type='submit' value='$Lang::tr{'back'}'>
+END
+;
+                               # Check if a provider should be added or edited.
+                               if ($cgiparams{'PROVIDERS'} eq "$Lang::tr{'edit'}") {
+                                       # Display button for updating the existing provider.
+                                       print "<input type='submit' name='PROVIDERS' value='$Lang::tr{'update'}'>\n";
+                               } else {
+                                       # Display button to add the new provider.
+                                       print "<input type='submit' name='PROVIDERS' value='$Lang::tr{'add'}'>\n";
+                               }
+print <<END
+                               </td>
+                       </tr>
+               </table>
+       </form>
+END
+;
+       &Header::closebox();
+}
 
 #
 ## A function to display a notice, to lock the webpage and
@@ -1182,135 +1894,6 @@ sub get_memory_usage($) {
        return;
 }
 
-#
-## Function to generate the file which contains the home net information.
-#
-sub generate_home_net_file() {
-       my %netsettings;
-
-       # Read-in network settings.
-       &General::readhash("${General::swroot}/ethernet/settings", \%netsettings);
-
-       # Get available network zones.
-       my @network_zones = &IDS::get_available_network_zones();
-
-       # Temporary array to store network address and prefix of the configured
-       # networks.
-       my @networks;
-
-       # Loop through the array of available network zones.
-       foreach my $zone (@network_zones) {
-               # Skip the red network - It never can be part to the home_net!
-               next if($zone eq "red");
-
-               # Convert current zone name into upper case.
-               $zone = uc($zone);
-
-               # Generate key to access the required data from the netsettings hash.
-               my $zone_netaddress = $zone . "_NETADDRESS";
-               my $zone_netmask = $zone . "_NETMASK";
-
-               # Obtain the settings from the netsettings hash.
-               my $netaddress = $netsettings{$zone_netaddress};
-               my $netmask = $netsettings{$zone_netmask};
-
-               # Convert the subnetmask into prefix notation.
-               my $prefix = &Network::convert_netmask2prefix($netmask);
-
-               # Generate full network string.
-               my $network = join("/", $netaddress,$prefix);
-
-               # Check if the network is valid.
-               if(&Network::check_subnet($network)) {
-                       # Add the generated network to the array of networks.
-                       push(@networks, $network);
-               }
-       }
-
-       # Format home net declaration.
-       my $line = "\"\[";
-
-       # Loop through the array of networks.
-       foreach my $network (@networks) {
-               # Add the network to the line.
-               $line = "$line" . "$network";
-
-               # Check if the current network was the last in the array.
-               if ($network eq $networks[-1]) {
-                       # Close the line.
-                       $line = "$line" . "\]\"";
-               } else {
-                       # Add "," for the next network.
-                       $line = "$line" . "\,";
-               }
-       }
-
-       # Open file to store the addresses of the home net.
-       open(FILE, ">$idshomenetfile") or die "Could not open $idshomenetfile. $!\n";
-
-       # Print yaml header.
-       print FILE "%YAML 1.1\n";
-       print FILE "---\n\n";
-
-       # Print notice about autogenerated file.
-       print FILE "#Autogenerated file. Any custom changes will be overwritten!\n";
-
-       # Print the generated and required HOME_NET declaration to the file.
-       print FILE "HOME_NET:\t$line\n";
-
-       # Close file handle.
-       close(FILE);
-
-}
-
-#
-## Function to generate the rules file with whitelisted addresses.
-#
-sub GenerateIgnoreFile() {
-       my %ignored = ();
-
-       # SID range 1000000-1999999 Reserved for Local Use
-       # Put your custom rules in this range to avoid conflicts
-       my $sid = 1500000;
-
-       # Read-in ignoredfile.
-       &General::readhasharray($ignoredfile, \%ignored);
-
-       # Open ignorefile for writing.
-       open(FILE, ">$whitelistfile") or die "Could not write to $whitelistfile. $!\n";
-
-       # Config file header.
-       print FILE "# Autogenerated file.\n";
-       print FILE "# All user modifications will be overwritten.\n\n";
-
-       # Add all user defined addresses to the whitelist.
-       #
-       # Check if the hash contains any elements.
-       if (keys (%ignored)) {
-               # Loop through the entire hash and write the host/network
-               # and remark to the ignore file.
-               while ( (my $key) = each %ignored) {
-                       my $address = $ignored{$key}[0];
-                       my $remark = $ignored{$key}[1];
-                       my $status = $ignored{$key}[2];
-
-                       # Check if the status of the entry is "enabled".
-                       if ($status eq "enabled") {
-                               # Check if the address/network is valid.
-                               if ((&General::validip($address)) || (&General::validipandmask($address))) {
-                                       # Write rule line to the file to pass any traffic from this IP
-                                       print FILE "pass ip $address any -> any any (msg:\"pass all traffic from/to $address\"\; sid:$sid\;)\n";
-
-                                       # Increment sid.
-                                       $sid++;
-                               }
-                       }
-                }
-       }
-
-       close(FILE);
-}
-
 #
 ## Function to read-in the given enabled or disables sids file.
 #
@@ -1361,3 +1944,50 @@ sub read_enabled_disabled_sids_file($) {
        # Return the hash.
        return %temphash;
 }
+
+#
+## Function to get the provider name from the language file or providers file for a given handle.
+#
+sub get_provider_name($) {
+       my ($handle) = @_;
+       my $provider_name;
+
+       # Get the required translation string for the given provider handle.
+       my $tr_string = $IDS::Ruleset::Providers{$handle}{'tr_string'};
+
+       # Check if the translation string is available in the language files.
+       if ($Lang::tr{$tr_string}) {
+               # Use the translated string from the language file.
+               $provider_name = $Lang::tr{$tr_string};
+       } else {
+               # Fallback and use the provider summary from the providers file.
+               $provider_name = $IDS::Ruleset::Providers{$handle}{'summary'};
+       }
+
+       # Return the obtained provider name.
+       return $provider_name;
+}
+
+#
+## Private function to convert a given rulefile to a category name.
+## ( No file extension anymore and if the name contained a dot, it
+## would be replaced by a underline sign.)
+#
+sub _rulefile_to_category($) {
+        my ($filename) = @_;
+
+       # Splitt the filename into single chunks and store them in a
+       # temorary array.
+        my @parts = split(/\./, $filename);
+
+       # Return / Remove last element of the temporary array.
+       # This removes the file extension.
+        pop @parts;
+
+       # Join together the single elements of the temporary array.
+       # If these are more than one, use a "underline" for joining.
+        my $category = join '_', @parts;
+
+       # Return the converted filename.
+        return $category;
+}