PHP is_portoralias函数代码示例

         $input_errors[] = gettext("This pool name has already been used.  Pool names must be unique.");
     }
 }
 if (preg_match('/[ \\/]/', $_POST['name'])) {
     $input_errors[] = gettext("You cannot use spaces or slashes in the 'name' field.");
 }
 if (strlen($_POST['name']) > 16) {
     $input_errors[] = gettext("The 'name' field must be 16 characters or less.");
 }
 if (in_array($_POST['name'], $reserved_table_names)) {
     $input_errors[] = sprintf(gettext("The name '%s' is a reserved word and cannot be used."), $_POST['name']);
 }
 if (is_alias($_POST['name'])) {
     $input_errors[] = sprintf(gettext("Sorry, an alias is already named %s."), $_POST['name']);
 }
 if (!is_portoralias($_POST['port'])) {
     $input_errors[] = gettext("The port must be an integer between 1 and 65535, or a port alias.");
 }
 // May as well use is_port as we want a positive integer and such.
 if (!empty($_POST['retry']) && !is_port($_POST['retry'])) {
     $input_errors[] = gettext("The retry value must be an integer between 1 and 65535.");
 }
 if (is_array($_POST['servers'])) {
     foreach ($pconfig['servers'] as $svrent) {
         if (!is_ipaddr($svrent) && !is_subnetv4($svrent)) {
             $input_errors[] = sprintf(gettext("%s is not a valid IP address or IPv4 subnet (in \"enabled\" list)."), $svrent);
         } else {
             if (is_subnetv4($svrent) && subnet_size($svrent) > 64) {
                 $input_errors[] = sprintf(gettext("%s is a subnet containing more than 64 IP addresses (in \"enabled\" list)."), $svrent);
             }
         }

     $_POST['srcendport'] = 0;
 }
 if (!$_POST['dstbeginport']) {
     $_POST['dstbeginport'] = 0;
     $_POST['dstendport'] = 0;
 }
 if ($_POST['srcbeginport'] && !is_portoralias($_POST['srcbeginport'])) {
     $input_errors[] = sprintf(gettext("%s is not a valid start source port. It must be a port alias or integer between 1 and 65535."), $_POST['srcbeginposrt']);
 }
 if ($_POST['srcendport'] && !is_portoralias($_POST['srcendport'])) {
     $input_errors[] = sprintf(gettext("%s is not a valid end source port. It must be a port alias or integer between 1 and 65535."), $_POST['srcendport']);
 }
 if ($_POST['dstbeginport'] && !is_portoralias($_POST['dstbeginport'])) {
     $input_errors[] = sprintf(gettext("%s is not a valid start destination port. It must be a port alias or integer between 1 and 65535."), $_POST['dstbeginport']);
 }
 if ($_POST['dstendport'] && !is_portoralias($_POST['dstendport'])) {
     $input_errors[] = sprintf(gettext("%s is not a valid end destination port. It must be a port alias or integer between 1 and 65535."), $_POST['dstendport']);
 }
 if (!$_POST['srcbeginport_cust'] && $_POST['srcendport_cust']) {
     if (is_alias($_POST['srcendport_cust'])) {
         $input_errors[] = 'If you put port alias in Source port range to: field you must put the same port alias in from: field';
     }
 }
 if ($_POST['srcbeginport_cust'] && $_POST['srcendport_cust']) {
     if (is_alias($_POST['srcendport_cust']) && is_alias($_POST['srcendport_cust']) && $_POST['srcbeginport_cust'] != $_POST['srcendport_cust']) {
         $input_errors[] = 'The same port alias must be used in Source port range from: and to: fields';
     }
     if (is_alias($_POST['srcbeginport_cust']) && (!is_alias($_POST['srcendport_cust']) && $_POST['srcendport_cust'] != '') || !is_alias($_POST['srcbeginport_cust']) && $_POST['srcbeginport_cust'] != '' && is_alias($_POST['srcendport_cust'])) {
         $input_errors[] = 'You cannot specify numbers and port aliases at the same time in Source port range from: and to: field';
     }
 }

 if ($_POST['sourceport']) {
     $_POST['sourceport'] = trim($_POST['sourceport']);
 }
 if ($_POST['dstport']) {
     $_POST['dstport'] = trim($_POST['dstport']);
 }
 if ($_POST['natport']) {
     $_POST['natport'] = trim($_POST['natport']);
 }
 if ($protocol_uses_ports && $_POST['sourceport'] != "" && !(is_portoralias($_POST['sourceport']) || is_portrange($_POST['sourceport']))) {
     $input_errors[] = gettext("A valid port or port alias must be supplied for the source port entry.");
 }
 if ($protocol_uses_ports && $_POST['dstport'] != "" && !(is_portoralias($_POST['dstport']) || is_portrange($_POST['dstport']))) {
     $input_errors[] = gettext("A valid port or port alias must be supplied for the destination port entry.");
 }
 if ($protocol_uses_ports && $_POST['natport'] != "" && !(is_portoralias($_POST['natport']) || is_portrange($_POST['natport'])) && !isset($_POST['nonat'])) {
     $input_errors[] = gettext("A valid port must be supplied for the NAT port entry.");
 }
 if ($_POST['source_type'] != "any" && $_POST['source_type'] != "(self)") {
     if ($_POST['source'] && !is_ipaddroralias($_POST['source']) && $_POST['source'] != "any") {
         $input_errors[] = gettext("A valid source must be specified.");
     }
 }
 if ($_POST['source_subnet'] && !is_numericint($_POST['source_subnet'])) {
     $input_errors[] = gettext("A valid source bit count must be specified.");
 }
 if ($_POST['destination_type'] != "any") {
     if ($_POST['destination'] && !is_ipaddroralias($_POST['destination'])) {
         $input_errors[] = gettext("A valid destination must be specified.");
     }
 }

         break;
     case "relay":
         $reqdfields = explode(" ", "ipaddr name mode relay_protocol");
         $reqdfieldsn = array(gettext("IP Address"), gettext("Name"), gettext("Relay Protocol"));
         break;
 }
 do_input_validation($_POST, $reqdfields, $reqdfieldsn, $input_errors);
 for ($i = 0; isset($config['load_balancer']['virtual_server'][$i]); $i++) {
     if ($_POST['name'] == $config['load_balancer']['virtual_server'][$i]['name'] && $i != $id) {
         $input_errors[] = gettext("This virtual server name has already been used.  Virtual server names must be unique.");
     }
 }
 if (preg_match('/[ \\/]/', $_POST['name'])) {
     $input_errors[] = gettext("You cannot use spaces or slashes in the 'name' field.");
 }
 if ($_POST['port'] != "" && !is_portoralias($_POST['port'])) {
     $input_errors[] = gettext("The port must be an integer between 1 and 65535, a port alias, or left blank.");
 }
 if (!is_ipaddroralias($_POST['ipaddr']) && !is_subnetv4($_POST['ipaddr'])) {
     $input_errors[] = sprintf(gettext("%s is not a valid IP address, IPv4 subnet, or alias."), $_POST['ipaddr']);
 } else {
     if (is_subnetv4($_POST['ipaddr']) && subnet_size($_POST['ipaddr']) > 64) {
         $input_errors[] = sprintf(gettext("%s is a subnet containing more than 64 IP addresses."), $_POST['ipaddr']);
     }
 }
 if (strtolower($_POST['relay_protocol']) == "dns" && !empty($_POST['sitedown'])) {
     $input_errors[] = gettext("You cannot select a Fall Back Pool when using the DNS relay protocol.");
 }
 if (!$input_errors) {
     $vsent = array();
     if (isset($id) && $a_vs[$id]) {

 if ($_POST['targetip']) {
     $_POST['targetip'] = trim($_POST['targetip']);
 }
 if ($_POST['sourceport']) {
     $_POST['sourceport'] = trim($_POST['sourceport']);
 }
 if ($_POST['dstport']) {
     $_POST['dstport'] = trim($_POST['dstport']);
 }
 if ($_POST['natport']) {
     $_POST['natport'] = trim($_POST['natport']);
 }
 if ($protocol_uses_ports && $_POST['sourceport'] != "" && !is_portoralias($_POST['sourceport'])) {
     $input_errors[] = gettext("You must supply either a valid port or port alias for the source port entry.");
 }
 if ($protocol_uses_ports && $_POST['dstport'] != "" && !is_portoralias($_POST['dstport'])) {
     $input_errors[] = gettext("You must supply either a valid port or port alias for the destination port entry.");
 }
 if ($protocol_uses_ports && $_POST['natport'] != "" && !is_port($_POST['natport']) && !isset($_POST['nonat'])) {
     $input_errors[] = gettext("You must supply a valid port for the NAT port entry.");
 }
 if ($_POST['source_type'] != "any" && $_POST['source_type'] != "(self)") {
     if ($_POST['source'] && !is_ipaddroralias($_POST['source']) && $_POST['source'] != "any") {
         $input_errors[] = gettext("A valid source must be specified.");
     }
 }
 if ($_POST['source_subnet'] && !is_numericint($_POST['source_subnet'])) {
     $input_errors[] = gettext("A valid source bit count must be specified.");
 }
 if ($_POST['destination_type'] != "any") {
     if ($_POST['destination'] && !is_ipaddroralias($_POST['destination'])) {

 foreach ($_POST as $key => $value) {
     $temp = str_replace(">", "", $value);
     $newpost = htmlentities($temp);
     if ($newpost != $temp) {
         $input_errors[] = sprintf(gettext("Invalid characters detected (%s).  Please remove invalid characters and save again."), $temp);
     }
 }
 /* input validation */
 $reqdfields = explode(" ", "interface protocol source source_subnet destination destination_subnet");
 $reqdfieldsn = array(gettext("Interface"), gettext("Protocol"), gettext("Source"), gettext("Source bit count"), gettext("Destination"), gettext("Destination bit count"));
 do_input_validation($_POST, $reqdfields, $reqdfieldsn, &$input_errors);
 $protocol_uses_ports = in_array($_POST['protocol'], explode(" ", "any tcp udp tcp/udp"));
 if ($protocol_uses_ports && $_POST['sourceport'] != "" && !is_portoralias($_POST['sourceport'])) {
     $input_errors[] = gettext("You must supply either a valid port or port alias for the source port entry.");
 }
 if ($protocol_uses_ports and $_POST['dstport'] != "" and !is_portoralias($_POST['dstport'])) {
     $input_errors[] = gettext("You must supply either a valid port or port alias for the destination port entry.");
 }
 if ($protocol_uses_ports and $_POST['natport'] != "" and !is_port($_POST['natport']) and !isset($_POST['nonat'])) {
     $input_errors[] = gettext("You must supply a valid port for the nat port entry.");
 }
 if ($_POST['source_type'] != "any") {
     if ($_POST['source'] && !is_ipaddroralias($_POST['source']) && $_POST['source'] != "any") {
         $input_errors[] = gettext("A valid source must be specified.");
     }
 }
 if ($_POST['source_subnet'] && !is_numericint($_POST['source_subnet'])) {
     $input_errors[] = gettext("A valid source bit count must be specified.");
 }
 if ($_POST['destination_type'] != "any") {
     if ($_POST['destination'] && !is_ipaddroralias($_POST['destination'])) {

 if (!isset($_POST['nordr']) && ($_POST['localip'] && !is_ipaddroralias($_POST['localip']))) {
     $input_errors[] = sprintf(gettext("\"%s\" is not a valid redirect target IP address or host alias."), $_POST['localip']);
 }
 if ($_POST['srcbeginport'] && !is_portoralias($_POST['srcbeginport'])) {
     $input_errors[] = sprintf(gettext("%s is not a valid start source port. It must be a port alias or integer between 1 and 65535."), $_POST['srcbeginport']);
 }
 if ($_POST['srcendport'] && !is_portoralias($_POST['srcendport'])) {
     $input_errors[] = sprintf(gettext("%s is not a valid end source port. It must be a port alias or integer between 1 and 65535."), $_POST['srcendport']);
 }
 if ($_POST['dstbeginport'] && !is_portoralias($_POST['dstbeginport'])) {
     $input_errors[] = sprintf(gettext("%s is not a valid start destination port. It must be a port alias or integer between 1 and 65535."), $_POST['dstbeginport']);
 }
 if ($_POST['dstendport'] && !is_portoralias($_POST['dstendport'])) {
     $input_errors[] = sprintf(gettext("%s is not a valid end destination port. It must be a port alias or integer between 1 and 65535."), $_POST['dstendport']);
 }
 if ((strtoupper($_POST['proto']) == "TCP" || strtoupper($_POST['proto']) == "UDP" || strtoupper($_POST['proto']) == "TCP/UDP") && (!isset($_POST['nordr']) && !is_portoralias($_POST['localbeginport']))) {
     $input_errors[] = sprintf(gettext("A valid redirect target port must be specified. It must be a port alias or integer between 1 and 65535."), $_POST['localbeginport']);
 }
 /* if user enters an alias and selects "network" then disallow. */
 if ($_POST['srctype'] == "network" && is_alias($_POST['src']) || $_POST['dsttype'] == "network" && is_alias($_POST['dst'])) {
     $input_errors[] = gettext("You must specify single host or alias for alias entries.");
 }
 if (!is_specialnet($_POST['srctype'])) {
     if ($_POST['src'] && !is_ipaddroralias($_POST['src'])) {
         $input_errors[] = sprintf(gettext("%s is not a valid source IP address or alias."), $_POST['src']);
     }
     if ($_POST['srcmask'] && !is_numericint($_POST['srcmask'])) {
         $input_errors[] = gettext("A valid source bit count must be specified.");
     }
 }
 if (!is_specialnet($_POST['dsttype'])) {

         $input_errors[] = sprintf(gettext("%s is only valid with protocol tcp."), $pconfig['statetype']);
     }
     if ($pconfig['gateway'] != "") {
         $input_errors[] = sprintf(gettext("%s is only valid if the gateway is set to 'default'."), $pconfig['statetype']);
     }
 }
 if (!empty($pconfig['srcbeginport']) && !is_portoralias($pconfig['srcbeginport']) && $pconfig['srcbeginport'] != 'any') {
     $input_errors[] = sprintf(gettext("%s is not a valid start source port. It must be a port alias or integer between 1 and 65535."), $pconfig['srcbeginport']);
 }
 if (!empty($pconfig['srcendport']) && !is_portoralias($pconfig['srcendport']) && $pconfig['srcendport'] != 'any') {
     $input_errors[] = sprintf(gettext("%s is not a valid end source port. It must be a port alias or integer between 1 and 65535."), $pconfig['srcendport']);
 }
 if (!empty($pconfig['dstbeginport']) && !is_portoralias($pconfig['dstbeginport']) && $pconfig['dstbeginport'] != 'any') {
     $input_errors[] = sprintf(gettext("%s is not a valid start destination port. It must be a port alias or integer between 1 and 65535."), $pconfig['dstbeginport']);
 }
 if (!empty($pconfig['dstendport']) && !is_portoralias($pconfig['dstendport']) && $pconfig['dstendport'] != 'any') {
     $input_errors[] = sprintf(gettext("%s is not a valid end destination port. It must be a port alias or integer between 1 and 65535."), $pconfig['dstendport']);
 }
 if ((is_alias($pconfig['srcbeginport']) || is_alias($pconfig['srcendport'])) && $pconfig['srcbeginport'] != $pconfig['srcendport']) {
     $input_errors[] = gettext('When selecting aliases for source ports, both from and to fields must be the same');
 }
 if ((is_alias($pconfig['dstbeginport']) || is_alias($pconfig['dstendport'])) && $pconfig['dstbeginport'] != $pconfig['dstendport']) {
     $input_errors[] = gettext('When selecting aliases for destination ports, both from and to fields must be the same');
 }
 if (!is_specialnet($pconfig['src'])) {
     if (!is_ipaddroralias($pconfig['src'])) {
         $input_errors[] = sprintf(gettext("%s is not a valid source IP address or alias."), $pconfig['src']);
     }
     if (!is_numericint($pconfig['srcmask'])) {
         $input_errors[] = gettext("A valid source bit count must be specified.");
     }

 // input record id, if valid
 if (isset($pconfig['id']) && isset($a_out[$pconfig['id']])) {
     $id = $pconfig['id'];
 }
 if (isset($pconfig['after']) && isset($a_out[$pconfig['after']])) {
     $after = $pconfig['after'];
 }
 /* input validation */
 $reqdfields = explode(" ", "interface protocol source source_subnet destination destination_subnet");
 $reqdfieldsn = array(gettext("Interface"), gettext("Protocol"), gettext("Source"), gettext("Source bit count"), gettext("Destination"), gettext("Destination bit count"));
 do_input_validation($pconfig, $reqdfields, $reqdfieldsn, $input_errors);
 if (in_array($pconfig['protocol'], explode(" ", "any tcp udp tcp/udp"))) {
     if (!empty($pconfig['sourceport']) && !is_portoralias($pconfig['sourceport'])) {
         $input_errors[] = gettext("You must supply either a valid port or port alias for the source port entry.");
     }
     if (!empty($pconfig['dstport']) && !is_portoralias($pconfig['dstport'])) {
         $input_errors[] = gettext("You must supply either a valid port or port alias for the destination port entry.");
     }
     if (!empty($pconfig['natport']) && !is_port($pconfig['natport']) && empty($pconfig['nonat'])) {
         $input_errors[] = gettext("You must supply a valid port for the NAT port entry.");
     }
 }
 if (!(in_array($pconfig['source'], array("any", "(self)")) || is_ipaddroralias($pconfig['source']))) {
     $input_errors[] = gettext("A valid source must be specified.");
 }
 if (!empty($pconfig['source_subnet']) && !is_numericint($pconfig['source_subnet'])) {
     $input_errors[] = gettext("A valid source bit count must be specified.");
 }
 if (!(in_array($pconfig['destination'], array("any", "(self)")) || is_ipaddroralias($pconfig['destination']))) {
     $input_errors[] = gettext("A valid destination must be specified.");
 }

 if ($_POST['targetip']) {
     $_POST['targetip'] = trim($_POST['targetip']);
 }
 if ($_POST['sourceport']) {
     $_POST['sourceport'] = trim($_POST['sourceport']);
 }
 if ($_POST['dstport']) {
     $_POST['dstport'] = trim($_POST['dstport']);
 }
 if ($_POST['natport']) {
     $_POST['natport'] = trim($_POST['natport']);
 }
 if ($protocol_uses_ports && $_POST['sourceport'] != "" && !(is_portoralias($_POST['sourceport']) || is_portrange($_POST['sourceport']))) {
     $input_errors[] = gettext("You must supply either a valid port or port alias for the source port entry.");
 }
 if ($protocol_uses_ports && $_POST['dstport'] != "" && !(is_portoralias($_POST['dstport']) || is_portrange($_POST['dstport']))) {
     $input_errors[] = gettext("You must supply either a valid port or port alias for the destination port entry.");
 }
 if ($protocol_uses_ports && $_POST['natport'] != "" && !is_port($_POST['natport']) && !isset($_POST['nonat'])) {
     $input_errors[] = gettext("You must supply a valid port for the NAT port entry.");
 }
 if ($_POST['source_type'] != "any" && $_POST['source_type'] != "(self)") {
     if ($_POST['source'] && !is_ipaddroralias($_POST['source']) && $_POST['source'] != "any") {
         $input_errors[] = gettext("A valid source must be specified.");
     }
 }
 if ($_POST['source_subnet'] && !is_numericint($_POST['source_subnet'])) {
     $input_errors[] = gettext("A valid source bit count must be specified.");
 }
 if ($_POST['destination_type'] != "any") {
     if ($_POST['destination'] && !is_ipaddroralias($_POST['destination'])) {

 if (!isset($_POST['nordr']) && ($_POST['localip'] && !is_ipaddroralias($_POST['localip']))) {
     $input_errors[] = sprintf(gettext("\"%s\" is not a valid redirect target IP address or host alias."), $_POST['localip']);
 }
 if ($_POST['srcbeginport'] && !is_portoralias($_POST['srcbeginport'])) {
     $input_errors[] = sprintf(gettext("%s is not a valid start source port. It must be a port alias or integer between 1 and 65535."), $_POST['srcbeginport']);
 }
 if ($_POST['srcendport'] && !is_portoralias($_POST['srcendport'])) {
     $input_errors[] = sprintf(gettext("%s is not a valid end source port. It must be a port alias or integer between 1 and 65535."), $_POST['srcendport']);
 }
 if ($_POST['dstbeginport'] && !is_portoralias($_POST['dstbeginport'])) {
     $input_errors[] = sprintf(gettext("%s is not a valid start destination port. It must be a port alias or integer between 1 and 65535."), $_POST['dstbeginport']);
 }
 if ($_POST['dstendport'] && !is_portoralias($_POST['dstendport'])) {
     $input_errors[] = sprintf(gettext("%s is not a valid end destination port. It must be a port alias or integer between 1 and 65535."), $_POST['dstendport']);
 }
 if (!isset($_POST['nordr']) && !is_portoralias($_POST['localbeginport'])) {
     $input_errors[] = sprintf(gettext("A valid local port must be specified. It must be a port alias or integer between 1 and 65535."), $_POST['localbeginport']);
 }
 /* if user enters an alias and selects "network" then disallow. */
 if ($_POST['srctype'] == "network" && is_alias($_POST['src']) || $_POST['dsttype'] == "network" && is_alias($_POST['dst'])) {
     $input_errors[] = gettext("You must specify single host or alias for alias entries.");
 }
 if (!is_specialnet($_POST['srctype'])) {
     if ($_POST['src'] && !is_ipaddroralias($_POST['src'])) {
         $input_errors[] = sprintf(gettext("%s is not a valid source IP address or alias."), $_POST['src']);
     }
     if ($_POST['srcmask'] && !is_numericint($_POST['srcmask'])) {
         $input_errors[] = gettext("A valid source bit count must be specified.");
     }
 }
 if (!is_specialnet($_POST['dsttype'])) {

 if (!isset($pconfig['nordr']) && ($pconfig['target'] && !is_ipaddroralias($pconfig['target']))) {
     $input_errors[] = sprintf(gettext("\"%s\" is not a valid redirect target IP address or host alias."), $pconfig['target']);
 }
 if (!empty($pconfig['srcbeginport']) && $pconfig['srcbeginport'] != 'any' && !is_portoralias($pconfig['srcbeginport'])) {
     $input_errors[] = sprintf(gettext("%s is not a valid start source port. It must be a port alias or integer between 1 and 65535."), $pconfig['srcbeginport']);
 }
 if (!empty($pconfig['srcendport']) && $pconfig['srcendport'] != 'any' && !is_portoralias($pconfig['srcendport'])) {
     $input_errors[] = sprintf(gettext("%s is not a valid end source port. It must be a port alias or integer between 1 and 65535."), $pconfig['srcendport']);
 }
 if (!empty($pconfig['dstbeginport']) && $pconfig['dstbeginport'] != 'any' && !is_portoralias($pconfig['dstbeginport'])) {
     $input_errors[] = sprintf(gettext("%s is not a valid start destination port. It must be a port alias or integer between 1 and 65535."), $pconfig['dstbeginport']);
 }
 if (!empty($pconfig['dstendport']) && $pconfig['dstendport'] != 'any' && !is_portoralias($pconfig['dstendport'])) {
     $input_errors[] = sprintf(gettext("%s is not a valid end destination port. It must be a port alias or integer between 1 and 65535."), $pconfig['dstendport']);
 }
 if (($pconfig['protocol'] == "tcp" || $pconfig['protocol'] == "udp" || $_POST['protocol'] == "tcp/udp") && (!isset($pconfig['nordr']) && !is_portoralias($pconfig['local-port']))) {
     $input_errors[] = sprintf(gettext("A valid redirect target port must be specified. It must be a port alias or integer between 1 and 65535."), $pconfig['local-port']);
 }
 if (!is_specialnet($pconfig['src']) && !is_ipaddroralias($pconfig['src'])) {
     $input_errors[] = sprintf(gettext("%s is not a valid source IP address or alias."), $pconfig['src']);
 }
 if (!empty($pconfig['srcmask']) && !is_numericint($pconfig['srcmask'])) {
     $input_errors[] = gettext("A valid source bit count must be specified.");
 }
 if (!is_specialnet($pconfig['dst']) && !is_ipaddroralias($pconfig['dst'])) {
     $input_errors[] = sprintf(gettext("%s is not a valid destination IP address or alias."), $pconfig['dst']);
 }
 if (!empty($pconfig['dstmask']) && !is_numericint($pconfig['dstmask'])) {
     $input_errors[] = gettext("A valid destination bit count must be specified.");
 }
 if (!isset($_POST['nordr']) && is_numericint($pconfig['dstbeginport']) && is_numericint($pconfig['dstendport']) && is_numericint($pconfig['local-port']) && max($pconfig['dstendport'], $pconfig['dstbeginport']) - min($pconfig['dstendport'], $pconfig['dstbeginport']) + $pconfig['local-port'] > 65535) {

 $pf_version = substr(trim(file_get_contents("/etc/version")), 0, 3);
 if ($pf_version < 2.1) {
     $input_errors = eval('do_input_validation($_POST, $reqdfields, $reqdfieldsn, &$input_errors); return $input_errors;');
 } else {
     do_input_validation($_POST, $reqdfields, $reqdfieldsn, $input_errors);
 }
 if (preg_match("/[^a-zA-Z0-9\\.\\-_]/", $_POST['name'])) {
     $input_errors[] = "The field 'Name' contains invalid characters.";
 }
 if ($pconfig['secondary'] != "yes") {
     if ($_POST['max_connections'] && !is_numeric($_POST['max_connections'])) {
         $input_errors[] = "The field 'Max connections' value is not a number.";
     }
     $ports = split(",", $_POST['port'] . ",");
     foreach ($ports as $port) {
         if ($port && !is_numeric($port) && !is_portoralias($port)) {
             $input_errors[] = "The field 'Port' value '" . htmlspecialchars($port) . "' is not a number or alias thereof.";
         }
     }
     if ($_POST['client_timeout'] !== "" && !is_numeric($_POST['client_timeout'])) {
         $input_errors[] = "The field 'Client timeout' value is not a number.";
     }
 }
 /* Ensure that our pool names are unique */
 for ($i = 0; isset($config['installedpackages']['haproxy']['ha_backends']['item'][$i]); $i++) {
     if ($_POST['name'] == $config['installedpackages']['haproxy']['ha_backends']['item'][$i]['name'] && $i != $id) {
         $input_errors[] = "This frontend name has already been used. Frontend names must be unique. {$i} != {$id}";
     }
 }
 $a_certificates = haproxy_htmllist_get_values($fields_sslCertificates);
 $pconfig['a_certificates'] = $a_certificates;