Frontend - Backend version missmatch!\n";
}
include ("conf.php");
include ("nfsenutil.php");
include ("navigator.php");
$TabList = array ( 'Home', 'Graphs', 'Details', 'Alerts', 'Stats', 'Plugins');
$GraphTabs = array ( 'Flows', 'Packets', 'Traffic');
// these session vars are packed into the bookmark
$BookmarkVars = array ( 'tab', 'sub_tab', 'profileswitch', 'channellist', 'detail_opts/proto', 'detail_opts/type',
'detail_opts/wsize', 'detail_opts/cursor_mode', 'tend', 'tleft', 'tright',
'detail_opts/logscale', 'detail_opts/ratescale', 'detail_opts/linegraph');
// All available options
$self = $_SERVER['PHP_SELF'];
//
// Function definitions
//
function SendHeader ($established) {
global $self;
global $TabList;
header("Content-type: text/html; charset=ISO-8859-1");
?>
NFSEN - Profile <?php echo $_SESSION['profile'] . " $str";?>
0 ) {
print "\n";
}
if ( $TabList[$_tab] == 'Details' ) { ?>
array(
* "required" => 1, , 0 or 1 must exists in $_POST, must not be NULL
* "allow_null"=> 1, , 0 or 1 allow value to be NULL
* "default" => NULL, , if not exists or not defined use this default, maybe NULL
* "match" => "/[^A-Za-z0-9\-+_]+/" , value must satify this reges, may be NULL
* "validate" => NULL), , additional validate function to call for further processing, may be NULL
*/
function ParseForm($parse_opts) {
$form_data = array();
$has_errors = 0;
foreach ( $parse_opts as $varname => $param_opts ) {
// set the default
$value = $parse_opts[$varname]['default'];
if ( !array_key_exists($varname, $_POST) ) {
if ( $parse_opts[$varname]['required'] == 1 ) {
SetMessage('error', "Missing '$varname'");
$has_errors = 1;
$form_data[$varname] = $parse_opts[$varname]['default'];
continue;
} // else default value
} else {
$value = $_POST[$varname] == '' ? NULL : $_POST[$varname];
}
if ( is_null($value) ) {
if ( $parse_opts[$varname]['allow_null'] ) {
$form_data[$varname] = $value;
} else {
SetMessage('error', "No value for '$varname'");
$form_data[$varname] = $parse_opts[$varname]['default'];
$has_errors = 1;
continue;
}
} else
// the value is set here
if ( !is_null($parse_opts[$varname]['match']) && !is_null($value) && !is_array($value)) {
if ( is_array($parse_opts[$varname]['match']) ) {
$matched = 0;
foreach ( $parse_opts[$varname]['match'] as $item ) {
if ( $item == $value )
$matched = 1;
}
if ( $matched == 0 ) {
SetMessage('error', "Illegal value '$value' for '$varname'");
$has_errors = 1;
$form_data[$varname] = $parse_opts[$varname]['default'];
continue;
}
} else {
if ( !preg_match($parse_opts[$varname]['match'], $value) ) {
SetMessage('error', "Illegal value '$value' for '$varname'");
$has_errors = 1;
$form_data[$varname] = $parse_opts[$varname]['default'];
continue;
}
}
}
// survived match - do we have a validate function?
if ( !is_null($parse_opts[$varname]['validate']) ) {
$validatefunc = $parse_opts[$varname]['validate'];
$err = call_user_func_array($validatefunc, array(&$value, $param_opts));
switch ($err) {
case 0: // no error
break;
case 1:
$has_errors = 1;
$value = $parse_opts[$varname]['default'];
break;
case 2:
$has_errors = 1;
break;
}
}
// put it in array
$form_data[$varname] = $value;
}
return array( $form_data, $has_errors);
} // End of ParseForm
/*
* Individual form validate functions
* - input: value to check. Maybe modified as needed -> passed by reference
* opts array as defined for this parameter
* - returns: error code:
* 0 no error continue
* 1 check failed -> set default value
* 2 check failed -> keep value
*/
function profile_exists_validate(&$profile, $opts) {
if ( preg_match("/^(.+)\/(.+)/", $profile, $matches) ) {
$_profilegroup = $matches[1];
$_profilename = $matches[2];
} else {
SetMessage('error', "Error decoding profile switch '$profile'");
return 1;
}
$found = 0;
foreach ( $_SESSION['ProfileList'] as $p ) {
if ( $p == $profile ) {
$found = 1;
}
}
if ( $opts['must_exist'] == 1 && $found == 0 ) {
SetMessage('error', "Profile '$_profilename' does not exist in group '$_profilegroup'");
return 1;
}
if ( $opts['must_exist'] == 0 && $found == 1 ) {
SetMessage('error', "Profile '$_profilename' already exist in group '$_profilegroup'");
return 1;
}
if ( !preg_match("/^[A-Za-z0-9][A-Za-z0-9\-+_]+$/", $_profilename) ) {
SetMessage('error', "Illegal characters in profile name '$_profilename'");
return 1;
}
if ( $_profilegroup != '.' && !preg_match("/^[A-Za-z0-9][A-Za-z0-9\-+_]+$/", $_profilegroup) ) {
SetMessage('error', "Illegal characters in profile name '$_profilegroup'");
return 1;
}
return 0;
} // End of profile_exists_validate
function expire_validate(&$expire, $opts) {
$str = ParseExpire($expire);
if ( !is_null($str) ) {
$expire = $str;
return 0;
} else {
SetMessage('error', "Invalid expire time: '$expire'");
return 1;
}
} // End of expire
function maxsize_validate(&$maxsize, $opts) {
$str = ParseMaxSize($maxsize);
if ( !is_null($str) ) {
$maxsize = $str;
return 0;
} else {
SetMessage('error', "Invalid max Size: '$maxsize'");
return 1;
}
} // End of expire_validate
function date_time_validate(&$t, $opts) {
// allow empty values
if ( $t == NULL )
return 0;
$_tmp = DISPLAY2UNIX($t);
if ( $_tmp > 0 ) {
$t = $_tmp;
return 0;
} else {
SetMessage('error', "Invalid time '$t'");
return 1;
}
} // End of date_time_validate
function filter_validate(&$filter, $opts) {
if ( is_null($filter) ) {
$filter = array();
return 0;
}
$filter = preg_replace("/\r/", '', $filter);
$filter = preg_replace("/^[\s\n]+/", '', $filter);
$filter = preg_replace("/[\s\n]+$/", '', $filter);
if ( $filter == '' ) {
$filter = array();
return 0;
}
if (!get_magic_quotes_gpc()) {
$filter = addslashes($filter);
}
// $filter = escapeshellarg($filter);
$filter = explode("\n", $filter);
$opts = array();
$opts['args'] = '-Z';
$opts['filter'] = $filter;
$out_list = nfsend_query('run-nfdump', $opts, 0);
if ( $out_list == false ) {
return 2;
}
if ( array_key_exists("nfdump", $out_list) && $out_list["exit"] > 0 ) {
foreach ( $out_list['nfdump'] as $line ) {
SetMessage('error', "Filter error: $line");
}
return 2;
}
return 0;
} // End of filter_validate
function description_validate(&$description, $opts) {
$_tmp = preg_replace("/\r/", '', $description);
if (!get_magic_quotes_gpc()) {
$description = addslashes($_tmp);
} else {
$description = $_tmp;
}
$description = explode("\n", $description);
return 0;
} // End of description_validate
// Global input parser
function channel_validate (&$channels, $opts) {
$_liveprofile = ReadProfile('./live');
$verified = array();
$err = 0;
foreach ( $channels as $channel ) {
if ( array_key_exists($channel, $_liveprofile['channel'] ) ) {
$verified[] = $channel;
} else{
SetMessage('error', "Channel '$channel' does not exist in profile 'live'");
$err = 1;
}
}
$channels = $verified;
if ( $opts['allow_null'] == 0 && count($channels) == 0 ) {
SetMessage('error', "At least one channel must be selected");
$err = 1;
}
return $err;
} // End of channel_validate
function InitSession ($num_vars) {
// force loading profil and plugin list
unset($_SESSION['ProfileList']);
unset($_SESSION['PluginList']);
GetProfiles();
GetPlugins();
$_SESSION['auto_filter'] = array();
DefaultFilters();
// make tab and profileinfo exist in _SESSION
$_SESSION['tab'] = NULL;
$_SESSION['profileswitch'] = NULL;
// simulate a POST of tab and profileswitch
$_POST['profileswitch'] = './live';
$_POST['tab'] = 0;
$_POST['sub_tab'] = 0;
// Empty bookmark
$vars = array();
for ( $i=0; $i < $num_vars; $i++ ) {
$vars[] = '-';
}
$_SESSION['bookmark'] = urlencode(base64_encode(implode('|', $vars)));
} // End of InitSession
function ParseInput () {
global $TabList;
global $BookmarkVars;
global $GraphTabs;
global $Refresh;
// Preset refresh value. Any Input pasring routing may reset refresh to 0, to disable refresh
$_SESSION['refresh'] = $Refresh;
/*
* user input may come from forms or links ( POST or GET data ) due to normal
* form processing. If a bookmark is specified in the URL, this overwrites other
* input data. To simplify data input checks, the bookmark is handled as any other post request
*/
ReportLog("ParseInput:");
if ( isset($_GET['bookmark']) ) {
// process bookmarkstring
$_bookmark = base64_decode(urldecode($_GET['bookmark']));
ReportLog("Bookmark: '$_bookmark'");
$_vars = explode( '|', $_bookmark);
if ( count($BookmarkVars) == count($_vars) ) {
for ( $i=0; $i count($TabList)) || ($_tab < 0) ) ) {
SetMessage('warning', "Requested Tab not available. Set default tab to " . $TabList[0]);
$_tab = 0;
}
$_tab = (int)$_tab;
$_SESSION['tab'] = $_tab;
if ( !isset($_GET['bookmark']) ) {
$tab_changed = 1;
}
ReportLog("Tab: Set tab to $_tab: " . $TabList[$_tab]);
}
}
// rebuild profile list
if ( $tab_changed && $_SESSION['tab'] == 4 ) {
unset($_SESSION['ProfileList']);
unset($_SESSION['PluginList']);
$profiles = GetProfiles();
GetPlugins();
}
// process sub tab
$_tab = -1;
if ( array_key_exists('sub_tab', $_GET) )
$_tab = $_GET['sub_tab'];
if ( array_key_exists('sub_tab', $_POST) )
$_tab = $_POST['sub_tab'];
if ( $_tab >= 0 ) {
if ( ! is_numeric($_tab) || ($_tab < 0) ) {
$_tab = 0;
}
$_SESSION['sub_tab'] = $_tab;
ReportLog("Subtab: Set tab to $_tab: " . $GraphTabs[$_tab]);
}
// process profileswitch
if ( !array_key_exists('profileswitch', $_SESSION) ) {
// this is fishy - InitSession should have set this
SetMessage('error', "Missing session parameter 'profileswitch'");
$_SESSION['refresh'] = 0;
return array(FALSE, 0, 0);
} else {
$_profileswitch = $_SESSION['profileswitch'];
}
if ( array_key_exists('profileswitch', $_POST) ) {
$_profileswitch = $_POST['profileswitch'];
}
// the alerting module only accepts profile live for now
if ( $_SESSION['tab'] == 3 )
$_profileswitch = './live';
$profile_changed = 0;
if ( $_profileswitch != $_SESSION['profileswitch'] ) {
if ( $_profileswitch == "New Profile ..." ) {
// make sure the profile admin page gets this request;
$_SESSION['tab'] = 4;
$_SESSION['new_profile'] = TRUE;
$_SESSION['refresh'] = 0;
} else {
// process new profileswitch
if ( preg_match("/^(.+)\/(.+)/", $_profileswitch, $matches) ) {
$_profilegroup = $matches[1];
$_profilename = $matches[2];
// Check if profilegroup/profilename exists
$_found = FALSE;
foreach ( $_SESSION['ProfileList'] as $p ) {
if ( $p == $_profileswitch ) {
$_found = TRUE;
}
}
if ( !$_found ) {
SetMessage('error', "Profile '$_profilename' does not exists in profile group '$_profilegroup'");
SetMessage('warning', "Fall back to profile live");
$_profilegroup = '.';
$_profilename = 'live';
}
} else {
SetMessage('error', "Can not parse profileswitch");
SetMessage('warning', "Fall back to profile live");
$_profilegroup = '.';
$_profilename = 'live';
}
$profile_changed = 1;
$_SESSION['profile'] = $_profilename;
$_SESSION['profilegroup'] = $_profilegroup;
$_SESSION['profileswitch'] = $_profileswitch;
}
}
$profileinfo = ReadProfile($_SESSION['profileswitch']);
if ( $profileinfo == FALSE ) {
SetMessage('warning', "Fall back to profile live");
unset($_SESSION['ProfileList']);
$profiles = GetProfiles();
$_SESSION['profileswitch'] = './live';
$_SESSION['profile'] = 'live';
$_SESSION['profilegroup'] = '.';
$profileinfo = ReadProfile('./live');
if ( $profileinfo == FALSE ) {
// double failure
SetMessage('error', "Can't read profile 'live'");
$_SESSION['refresh'] = 0;
return array(FALSE, 0, 0);
}
}
if ( $profileinfo['status'] == 'new' ) {
$_SESSION['tab'] = 4;
$_SESSION['refresh'] = 0;
$_SESSION['tablock'] = "A new profile needs to be completed first.";
} else {
unset($_SESSION['tablock']);
}
$_SESSION['profileinfo'] = $profileinfo;
// no refresh for history profiles
if ( ($profileinfo['type'] & 3) == 1 )
$_SESSION['refresh'] = 0;
return array(TRUE, $tab_changed, $profile_changed);
} // End of ParseInput
////////////////////
// Main starts here
////////////////////
// Set debugging var
if ( !isset($DEBUG) ) {
$DEBUG=0;
}
ClearMessages();
OpenLogFile();
// bootstrap
// Force new nfcapd session
unset($_SESSION['nfsend']);
$out_list = nfsend_query('get-globals', array(), 0);
if ( !is_array($out_list) ) {
SetMessage('error', "Can not initialize globals");
SendHeader(0);
ShowMessages();
exit;
}
foreach ( $out_list['globals'] as $global ) {
eval($global);
}
$_SESSION['backend_version'] = $version;
// check disk usage
nfsend_query("get-du", array(), 0);
// Parameter parsing: check for tab and profileswitch
list ($status, $tab_changed, $profile_changed) = ParseInput();
if ( $status == FALSE ) {
SendHeader(1);
ShowMessages();
exit;
}
// tab processing
$label = $TabList[$_SESSION['tab']];
switch ($label) {
// no further processing needed for tabs 0 - 3
case "Home":
case "Graphs":
if ( $tab_changed || !array_key_exists('sub_tab', $_SESSION ))
$_SESSION['sub_tab'] = 0;
break;
case "Details":
require ("details.php");
Process_Details_tab($tab_changed, $profile_changed);
break;
case "Alerts":
require ("alerting.php");
Process_alert_tab($tab_changed, $profile_changed);
break;
case "Stats":
require("profileadmin.php");
Process_stat_tab($tab_changed, $profile_changed);
break;
case "Plugins":
if ( $tab_changed || !array_key_exists('sub_tab', $_SESSION )) {
if(isset($_GET['sub_tab']))
$_SESSION['sub_tab'] = intval($_GET['sub_tab']);
else
$_SESSION['sub_tab'] = 0;
}
$plugins = GetPlugins ();
if ($_SESSION['sub_tab'] > count($plugins)) {
SetMessage('error', "Plugin number out of range!");
$_SESSION['sub_tab'] = 0;
}
if ( count($plugins) > 0 ) {
$plugin_name = $plugins[ $_SESSION['sub_tab'] ];
$include_file = "$FRONTEND_PLUGINDIR/$plugin_name" . ".php";
include($include_file);
$plugin_parse_input = $plugin_name . "_ParseInput";
$plugin_run = $plugin_name . "_Run";
$errstr = '';
if ( !function_exists($plugin_parse_input) ) {
$errstr = $plugin_parse_input;
}
if ( !function_exists($plugin_run) ) {
$errstr = "$errstr $plugin_run";
}
if ( $errstr != '' ) {
SetMessage('error', "Missing plugin function $errstr");
$plugin_run = "Plugin_Error";
} else {
// Give the plugin a chance to Parse the plugin specific vars
// The plugin may call SetMessage('error', ... SetMessage('warning',
call_user_func($plugin_parse_input, $_SESSION['sub_tab'], $_SESSION['profile'] );
}
}
break;
default:
}
// Generate bookmark
$vars = array();
foreach ( $BookmarkVars as $var ) {
$_varpath = explode('/', $var);
if ( count($_varpath) == 2 ) {
$vars[] = array_key_exists($_varpath[0], $_SESSION) && array_key_exists($_varpath[1], $_SESSION[$_varpath[0]]) ?
$_SESSION[$_varpath[0]][$_varpath[1]] : '-';
} else {
$vars[] = array_key_exists($var, $_SESSION) ? $_SESSION[$var] : '-';
}
}
ReportLog("New Bookmark: " . implode('|', $vars) );
$_SESSION['bookmark'] = urlencode(base64_encode(implode('|', $vars)));
SendHeader(1);
navigator();
ShowMessages();
// Debugging
ob_start();
print "_SESSION 1:\n";
print_r($_SESSION);
print "_POST:\n";
print_r($_POST);
print "_GET:\n";
print_r($_GET);
print "_COOKIE:\n";
print_r($_COOKIE);
ReportLog(ob_get_contents());
ob_clean();
$TabList = array ( 'Home', 'Graphs', 'Details', 'Alerts', 'Stats', 'Plugins');
// tab display
switch ($label) {
case "Home":
require ("overview.php");
DisplayOverview();
break;
case "Graphs":
require ("overview.php");
switch ($_SESSION['sub_tab']) {
case "0":
DisplayGraphs("flows");
break;
case "1":
DisplayGraphs("packets");
break;
case "2":
DisplayGraphs("traffic");
break;
}
break;
case "Details":
DisplayDetails();
DisplayProcessing();
break;
case "Alerts":
DisplayAlerts();
break;
case "Stats":
DisplayAdminPage();
break;
case "Plugins":
// Run the plugin
if ( count($plugins) > 0 )
call_user_func($plugin_run, $_SESSION['sub_tab'], $_SESSION['profile'] );
// otherwise do nothing
break;
default:
}
nfsend_disconnect();
unset($_SESSION['nfsend']);
CloseLogFile();
?>