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<?php $nonce = wp_create_nonce( 'quttera' ); ?>

var last_log_line           = 0;
    var initial_load            = true;
    var log_lines               = Array();
    var max_log_lines           = 20;
    var logs_refresh_timer_set  = false;
    var progress_bar_timer      = 0;
    var execution_status_reload = 1024*1024;
    var status_reload_timer     = 0;
    var scanner_running         = false;

jQuery(document).ready(function($) {
        $.ajaxSetup({
            type: 'POST',
            async: true,
            url: ajaxurl, /* predefined WP value */
            complete: function(xhr,status) {
                if ( status != 'success' ) {
                    console.log("Failed to communicate with WP for " + ajaxurl + " status " + status);
                }
            }
        });

$('#run-internal-scanner').click( function() {
            console.log("run-internal-scan clicked");
            /*
             * Check if internal scan is not running
             */

document.getElementById("total_scanned_files").innerHTML            = 0;
            document.getElementById("scanned_clean_files").innerHTML            = 0;
            document.getElementById("scanned_pos_suspicious_files").innerHTML   = 0;
            document.getElementById("scanned_suspicious_files").innerHTML       = 0;
            document.getElementById("scanned_malicious_files").innerHTML        = 0;

QtrIsInternalScanRunning();
            console.log("Is scanner running " + scanner_running );

if( scanner_running == true ){
	            QtrShowProgressBar();
                console.log("Internal scan already runing");
                return false;
            }

scanner_running = true;
            QtrCleanExecutionLog();
            QtrRunHeurInternalScan( 0 );
            QtrShowEmptyThreatsReport ( );
	        QtrShowProgressBar();
            QtrStartProgressBarTimer();
            QtrStartExecutionStatusReload( 1024*1024*100 );
            return false;
        });

$('#clean-log').click( function() {
            QtrCleanExecutionLog();
        });

$('#stop-internal-scanner').click( function() {
            console.log("stop_internal_scan"); 
            /*
             * Hide progress bar
             */ 
            QtrHideProgressBar();
            /*
             * Stop progress bar update timer
             */
            QtrStopProgressBarTimer();
            /*
             * Stop logs reading from remote
             */
            QtrStopExecutionStatusReload();

jQuery.ajax({
                data: {
                    action: 'scanner-stop_internal_scan',
                    _wpnonce: '<?php echo $nonce; ?>',
                }, 
                success: function(r) {
                    QtrLogMessage("INFO", "Termination sent successfully. Waiting for scan job");
                    QtrLogMessage("INFO", r );
                    console.log(r);
                }//end of success function
            });
        });

$('#get-scanner-report').click( function() {
            console.log("get_scanner_report"); 
            jQuery.ajax({
                data: {
                    action: 'scanner-get_file_report',
                    _wpnonce: '<?php echo $nonce; ?>',
                },

success: function(r) {
                    //console.log(r)
                    //window.location = 'scanner-get_file_report';
                    //document.write(r);
                    var data = r;
                    data = data.replace(/</g, "&#60;");
                    data = data.replace(/>/g, "&#62;");
                    var win = window.open();
                    win.document.write(decodeURIComponent(data).replace(/(?:\r\n|\r|\n)/g, '<br/>'));
                    win.focus();
                    return ;

//myWindow = window.open( "data:text/text;charset=utf-8," + encodeURIComponent(data),"_blank" );
                    //myWindow.focus();
                    //var winPrint = window.open('', '', 'left=0,top=0,width=800,height=600,toolbar=0,scrollbars=0,status=0');
                    //winPrint.document.write("<pre>\r\n" + data + "\r\n</pre>");
                    //winPrint.document.close();
                }
            });
        });

/*
         * Hook to catch bootstrap tabs switching
         */ 
        $('a[data-toggle="tab"]').on('shown.bs.tab', function(e){
             var currentTab = $(e.target).text();       // get current tab
             var LastTab = $(e.relatedTarget).text();   // get last tab
             //alert(currentTab);
             if( currentTab.indexOf("Detected") >= 0 ){
                 console.log("Detected Threats");
                 QtrReloadDetectedThreatsReport();
             }else if( currentTab.indexOf("Summary") >= 0 ){
                 //alert("Summary");
                 QtrReloadExecutionStatus();
             }else if( currentTab.indexOf("Ignored") >= 0 ){
                 //alert("Ignored Threats");
                 QtrReloadIgnoredThreatsReport();
             }
        });

$('#clean-ignore-list').click( function() {
            console.log("clean-ignore-list"); 
            jQuery.ajax({
                data: {
                    action: 'scanner-clean_ignore_list',
                    _wpnonce: '<?php echo $nonce; ?>',
                }, 
                success: function(r) {
                    QtrLogMessage("INFO", "Ignore list cleaned successfully");
                    QtrLogMessage("INFO", r );
                    console.log(r);
                    /*
                     * refresh list of detect threat and restore all threats removed from ignore list
                     */
                    QtrReloadDetectedThreatsReport();
                    QtrReloadIgnoredThreatsReport();
                }//end of success function
            });
        });

$('#clean-files-white-list').click( function() {
            console.log("clean-files-white-list"); 
            jQuery.ajax({
                data: {
                    action: 'scanner-clean_files_whitelist',
                    _wpnonce: '<?php echo $nonce; ?>',
                }, 
                success: function(r) {
                    QtrLogMessage ("INFO", "Files whitellist cleaned successfully");
                    QtrLogMessage ("INFO", r );
                    console.log(r);
                    /*
                     * refresh list of detect threat and restore all threats removed from ignore list
                     */
                    QtrReloadDetectedThreatsReport();
                }//end of success function
            });
        });

$('#clean-threats-white-list').click( function() {
            console.log("clean-threats-white-list"); 
            jQuery.ajax({
                data: {
                    action: 'scanner-clean_threats_whitelist',
                    _wpnonce: '<?php echo $nonce; ?>',
                }, 
                success: function(r) {
                    QtrLogMessage ("INFO", "Threats whitellist cleaned successfully");
                    QtrLogMessage ("INFO", r );
                    console.log(r);
                    /*
                     * refresh list of detect threat and restore all threats removed from ignore list
                     */
                    QtrReloadDetectedThreatsReport();
                }//end of success function
            });
        });

/*
         * Clean last log line to retrieve an entire log
         */
        last_log_line = 0;

/*
         * Show the hidden pane
         */
        $('#progress-pane').show();

QtrIsInternalScanRunning();

if( scanner_running == true ){
            console.log("Quttera internal scan already running");
            /*
             * retrieve log and execution statistics
             * and show progress bar
             */
            QtrStartExecutionStatusReload( 1024*1024*100 );
            QtrReloadExecutionStatus();
            QtrShowProgressBar();
            QtrStartProgressBarTimer();
        }
        else
        {
            console.log("Quttera internal scan is not running");
            /*
             * Reload status from remote
             */ 
            QtrReloadExecutionStatus();
            /*
             * just to start reload timer
             */ 
            QtrStartExecutionStatusReload(0);
        }

});

function QtrStartExecutionStatusReload( count ){
        execution_status_reload = count;
        if( status_reload_timer == 0 ){
            status_reload_timer = setInterval(  QtrReloadExecutionStatusTimer,
                                                40000);
        }
    }

function QtrStopExecutionStatusReload(){
        execution_status_reload = 5;
    }

function QtrStartProgressBarTimer(){
        console.log("QtrStartProgressBarTimer called");
        if( progress_bar_timer == 0 ){
            progress_bar_timer = setInterval(   QtrUpdateProgressBar,
                                                20000);
        }
    }

function QtrStopProgressBarTimer(){
        if( progress_bar_timer ){
            clearInterval(progress_bar_timer);
            progress_bar_timer = 0;
        }
    }

function QtrShowProgressBar(){
        console.log("QtrShowProgressBar called");
	    document.getElementById("no_progress_bar").style.display = 'none';
	    document.getElementById("progress_bar").style.display = 'block';
        document.getElementById("run-internal-scanner").style.display = 'none';
	    document.getElementById("stop-internal-scanner").style.display = 'block';

}

function QtrHideProgressBar(){
        console.log("QtrHideProgressBar called");
        document.getElementById("progress_bar").style.display = 'none';
        document.getElementById("no_progress_bar").style.display = 'block';
        document.getElementById("run-internal-scanner").style.display = 'block';
	    document.getElementById("stop-internal-scanner").style.display = 'none';
    }

return scanner_running;
    };

function QtrReloadExecutionStatusTimer(){
        if( !scanner_running ){
            /*
             * Check if internal scan done
             */ 
            if( execution_status_reload > 3 ){
                /*
                 * Yes, it seems that internal scan terminated,
                 * Stop status reload after a minute
                 */ 
                execution_status_reload = 3
            }
        }

if( execution_status_reload > 0 ){
            execution_status_reload -= 1;
            QtrReloadExecutionStatus();
        }
    }

function QtrReloadExecutionStatus(){
        QtrReloadExecutionLog();
        QtrReloadDetectedThreatsReport();
        QtrReloadExecutionStats();        
    }

function QtrCleanExecutionLog( ){
        console.log("QtrCleanExecutionLog called");
        document.getElementById("log").value = "";
        last_log_line = 0;

jQuery.ajax({
            data: {
                action: 'scanner-clean_log',
                _wpnonce: '<?php echo $nonce; ?>',
            }, 
            success: function(r) {
                //console.log(r);
            }
        });
    }

function QtrReloadExecutionLog ( ){
        console.log("QtrReloadExecutionLog called");
        jQuery.ajax({
            data: {
                action: 'scanner-get_log_lines',
                _wpnonce: '<?php echo $nonce; ?>',
                start_line: last_log_line,
            }, 
            success: function(r) {
                //console.log(r);
                //alert(r);
                //return;
                //
                var log_lines = jQuery.parseJSON(r);
                if( !Array.isArray(log_lines) ){
                    console.log ("Invalid input: " + log_lines );
                    return;
                }

if( log_lines )
                {
                    QtrLogMessages( log_lines );
                }
            }//end of success function
        });
    }

}

function QtrReloadDetectedThreatsReport ( )
    {
        jQuery.ajax({
            data: {
                action: 'scanner-get_detected_threats',
                _wpnonce: '<?php echo $nonce; ?>',
            }, 
            success: function(r) 
            {
                //console.log(r);

var threats = jQuery.parseJSON(r);

if( Array.isArray(threats) )
                {
                    QtrCleanDetectedThreatsReport();
                    threats_to_show = 100;

if( threats_to_show > threats.length ){
                        threats_to_show = threats.length;
                    }

if( threats_to_show != 0 )
                    {
                        for(var i = 0; i < threats_to_show; i++ )
                        {
                            QtrAddToDetectedThreatsReport( threats[i] );
                        }
                    }
                    else
                    {
                        console.log("Threats arry is clean");
                        QtrShowEmptyThreatsReport();
                    }
                    //
                }
                else
                {
                    console.log("Retrieved invalid output: " + r);
                }
            }//end of success function
        });
    }

function QtrShowEmptyThreatsReport ( )
    {
        document.getElementById('detected_threats_report').style.display    = 'none';
        document.getElementById('detected_threats_report').style.display    = 'block';
        document.getElementById("detected_threats_report").innerHTML        = "<center><p>No entries have been found</p></center>";
    }

function QtrCleanDetectedThreatsReport ( )
    {
        document.getElementById("detected_threats_report").innerHTML = "";
    }

function QtrAddToDetectedThreatsReport( report )
    {
        var alert_type = "alert alert-info";
        var severity   = report["SEVERITY"].toLowerCase();

if( severity.indexOf("malicious") >= 0 ){
            alert_type = "alert alert-danger";
        }else if( severity.indexOf("susp") >= 0 ){
            alert_type = "alert alert-warning";
        }

var threat      = report["THREAT"].substr(0,20); 
        var filename    = QtrStripFilePath(report["FILE"],60);
        var file_md5    = report["FILE_MD5"];
        var threat_sig  = report["THREAT_SIG"];

document.getElementById("detected_threats_report").innerHTML += 
            "</br>\n" +
            "<div class='" + alert_type + "'>\n"+
                "<table class='table'>\n" +
                    "<tr><td>Severity: </td><td> " + report["SEVERITY"] + "</td></tr>\n" +
                    "<tr><td>File: </td><td> " + filename + "</td></tr>\n" +
                    "<tr><td>File signature: </td><td> " + report["FILE_MD5"] + "</td></tr>\n" +
                    "<tr><td>Threat signature: </td><td> " + report["THREAT_SIG"] + "</td></tr>\n" +
                    "<tr><td>Threat name: </td><td> " + report["THREAT_NAME"] + "</td></tr>\n" +
                    "<tr><td>Threat: </td><td> " + threat  + "</td></tr>\n" +
                    "<tr><td>Details: </td><td> " + report["DETAILS"] + "</td></tr>\n" +
                "</table>\n" + 
                "<div class='btn-group btn-group-xs'>\n" + 
                    "<button type='button' class='btn btn-dark btn-sm m-1' id=\"" + file_md5 + "\" onclick='QtrWhitelistFile(\"" + file_md5 + "\")'>WhiteList</button>\n" +
                    "<button type='button' class='btn btn-dark btn-sm m-1' id=\"" + file_md5 + "-ShowFile\" onclick='QtrShowFile(\"" + report["FILE"] + "\")'>Show File</button>\n" +
                "</div>\n";
           "</div>\n";
    }

function QtrAddToIgnoredThreatsReport( report )
    {
        var alert_type = "alert alert-info";
        var severity   = report["SEVERITY"].toLowerCase();

if( severity.indexOf("malicious") >= 0 ){
            alert_type = "alert alert-danger";
        }else if( severity.indexOf("susp") >= 0 ){
            alert_type = "alert alert-warning";
        }

document.getElementById("ignored_threats_report").innerHTML += 
            "</br>\n" +
            "<div class='" + alert_type + "'>\n"+
                "<table class='table'>\n" +
                    "<tr><td>Severity: </td><td> " + report["SEVERITY"] + "</td></tr>\n" +
                    "<tr><td>File: </td><td> " + filename + "</td></tr>\n" +
                    "<tr><td>File signature: </td><td> " + report["FILE_MD5"] + "</td></tr>\n" +
                    "<tr><td>Threat signature: </td><td> " + report["THREAT_SIG"] + "</td></tr>\n" +
                    "<tr><td>Threat name: </td><td> " + report["THREAT_NAME"] + "</td></tr>\n" +
                    "<tr><td>Threat: </td><td> " + threat  + "</td></tr>\n" +
                    "<tr><td>Details: </td><td> " + report["DETAILS"] + "</td></tr>\n" +
                "</table>\n" + 
                "<div class='btn-group btn-group-xs'>\n" + 
                "<button type='button' class='button-primary btn-sm' onclick='QtrRemoveFromIgnoreList(\"" + file_md5 + "\",\"" + threat_sig + "\")'>Remove from Ignore List</button>\n" +
                "</div>\n";
           "</div>\n";
    }

function QtrReloadIgnoredThreatsReport ( )
    {
        console.log("QtrReloadIgnoredThreatsReport");

QtrShowEmptyIgnoreList();

jQuery.ajax({
            data: {
                action: 'scanner-get_ignored_threats',
                _wpnonce: '<?php echo $nonce; ?>',
            }, 
            success: function(r) {
                //console.log(r);
                var threats = jQuery.parseJSON(r);

if( Array.isArray(threats) ){
                    QtrCleanIgnoreThreatsReport();
                    threats_to_show = 100;

if( threats_to_show > threats.length ){
                        threats_to_show = threats.length;
                    }

if( threats_to_show != 0 )
                    {
                        for(var i = 0; i < threats_to_show; i++ )
                        {
                            QtrAddToIgnoredThreatsReport( threats[i] );
                        }
                    }
                    else
                    {
                        console.log("Ignored list is clean");
                        QtrShowEmptyIgnoreList();
                    }
                }else{
                    console.log("Retrieved invalid output: " + r);
                }
            }//end of success function
        });
    }

function QtrShowEmptyIgnoreList ( )
    {
        /*
         * First two lines used to refresh element if it is shown
         */
        /*
        document.getElementById('ignored_threats_report').style.display = 'none';
        document.getElementById('ignored_threats_report').style.display = 'block';
        document.getElementById("ignored_threats_report").innerHTML = "<center><p>No entries have been found</p></center>";
        */
    }

function QtrCleanIgnoreThreatsReport ( )
    {
        document.getElementById("ignored_threats_report").innerHTML = "";
    }

function QtrRunHeurInternalScan ( level ) 
    {
        QtrLogMessage ("INFO","Submitting high sensitive internal scan request");

jQuery.ajax({
            data: {
                action: 'scanner-run_heur_internal_scan',
                _wpnonce: '<?php echo $nonce; ?>',
            },

timeout: 3000, // sets timeout to 3 seconds

error: function(jqXHR, textStatus){
                QtrLogMessage ("INFO","High sensitive internal scan request submitted");
            },
            success: function(r) {
                QtrLogMessage ("INFO","Operation succeeded. High sensitive internal scan started");
            }//end of success function
        });

QtrReloadExecutionStatus();
    };

function QtrShowFile( path )
    {        
        QtrLogMessage ("INFO","show file " + path );

jQuery.ajax({
            data: {
                action: 'scanner-show_file',
                FILE_PATH: path,
                _wpnonce: '<?php echo $nonce; ?>',
            },

timeout: 60000, // sets timeout to 60 seconds

error: function(jqXHR, textStatus){
                QtrLogMessage ("INFO","Show file request submitted but failed");
            },
            success: function(r) {
                //console.log(r);
                var data = r;
                var winPrint = window.open('', '', 'left=0,top=0,width=800,height=600,toolbar=0,scrollbars=1,status=0');
                winPrint.document.write("<script src=\"https://cdn.rawgit.com/google/code-prettify/master/loader/run_prettify.js\"><\/script>");
                data = data.replace(/</g,"&lt;");
                data = data.replace(/>/g,"&gt;");
                //console.log(data);
                winPrint.document.write("<pre class=\"prettyprint\"><code>\r\n" + data + "\r\n</code></pre>");
                winPrint.document.close();
            }//end of success function
        });
    }

function QtrLogMessages( messages )
    {
        var body = "";
        for( var i =0; i < messages.length; i++ )
        {
            /* index 0 is line number */
            var line = messages[i][1] + "\t" + messages[i][2] + "\n";
            if( log_lines.length >= max_log_lines ){
                /*
                 * removes first line from front
                 */ 
                log_lines.shift();
            }
            log_lines.push( line );
            body += line;
        }

document.getElementById("log").value = body;
        document.getElementById("log").scrollTop = document.getElementById("log").scrollHeight;
    }

function QtrLogMessage(severity,message)
    {
        if( !severity || !message ){
            return ;
        }

var log_line = severity + "\t" + message;

if( log_lines.length >= max_log_lines ){
            /*
             * removes first line from front
             */ 
            log_lines.shift();
        }

log_lines.push( log_line );

var body = "";
        for( var i = 0; i < log_lines.length; i++ ){
            body += log_lines[i] + "\n";
        }

document.getElementById("log").value = body;
        document.getElementById("log").scrollTop = document.getElementById("log").scrollHeight;
    }

function QtrUpdateExecutionStats( counters )
    {
        var start = new Date( counters["START_TIME"] * 1000 );
	    var ds = start.toDateString();
	    var ts = start.toTimeString();
        document.getElementById("scan_start_time").innerHTML                = ds + " " + ts; //start.toTimeString();
        document.getElementById("total_scanned_files").innerHTML            = counters["TOTAL"];
        document.getElementById("scanned_clean_files").innerHTML            = counters["CLEAN"];
        document.getElementById("scanned_pos_suspicious_files").innerHTML   = counters["POT_SUSPICIOUS"];
        document.getElementById("scanned_suspicious_files").innerHTML       = counters["SUSPICIOUS"];
        document.getElementById("scanned_malicious_files").innerHTML        = counters["MALICIOUS"];
    }

/**
     * @brief       cut off too long parts of path to shorter form with dots
     * @param[in]   path    - path to convert
     * @param[in]   maxlen  - maximal permitted length
     * @return      converted path
     */
    function QtrStripFilePath( path,maxlen )
    {
        if( path.length <= maxlen ){
            return path;
        }

name_pos        = path.lastIndexOf("/");
        name            = path.substring( name_pos );
        path_part_end   = maxlen - name.length - 5;
        path_part       = path.substring(0,path_part_end) + "/..." + name;
        return path_part;
    }
</script>