Human Emulator wiki

set_canvas_toDataURL

set_canvas_toDataURL($toDataURL="",$jsChangeNoise=""); - Used for setting Browser Canvas Finger Print (Available from version 4.10.9)

The function accepts parameters as input:

$noise - Any number or string is passed as a parameter based on which "noise" is created for a picture with text. Since Studio 7.0.43.

$jsChangeNoise - contains an algorithm for changing a picture using JS. Thus, if you can use your own image processing algorithms. Since Studio 7.0.45.

After testing, the function returns the result of its work to the script. you can view the result here :

true – successfully set

false – failed to set

PHP example:

<?php $xhe_host = "127.0.0.1:7024";
 
//connect the object to control the emulator, if not already connected
if(!isset($path))
  $path = "../../../Templates/xweb_human_emulator.php";
require($path);
 
//Start
echo "<hr> <font color = blue> browser->".basename(__FILE__)."</font> <hr>";
 
$browser->enable_fonts(false);
//$raw->enable_all_streams(true);
//$raw->add_disabled_response_url("canvas.js ");
 
//10 random canvas finger print
for($i = 0; $i <2; $i ++)
{
//1
echo "1.Let's set information about the screen sensor:";
echo $browser->set_canvas_toDataURL("data:".$submitter->generate_random_text(4168,1))."<br>" ;;
 
//2
echo "2.Go to the browser detection page:";
echo $browser->navigate("http://browserleaks.com/canvas", false)." n";
$element->get_by_inner_text("Signature")->focus();
sleep(1);
}
 
//3
echo "3.Let's set the default screen sensor information:";
echo $browser->set_canvas_toDataURL()."<br>";
 
//4
echo "4.Let's go to the browser detection page:";
echo $browser->navigate("http://browserleaks.com/canvas", false)." n";
$element->get_by_inner_text("Signature")->focus();
sleep(1);
 
//five
echo "5.Via JS manually - set any changes:";
$js = "for(var i = 1; i <height-1; i ++)
    {
        for(var j = 1; j <width-1; j ++)
        {
            var n =((i *(width * 4)) +(j * 4));
            imageData.data [n + 0] = imageData.data [n + 0] + 150;
            imageData.data [n + 1] = imageData.data [n + 1] + 150;
            imageData.data [n + 2] = imageData.data [n + 2] + 150;
            imageData.data [n + 3] = imageData.data [n + 3];
        }
    } ";
echo $browser->set_canvas_toDataURL(1, $js)." n";
 
//6
echo "6.Let's go to the browser detection page:";
echo $browser->navigate("http://browserleaks.com/canvas", false)." n";
$element->get_by_inner_text("Signature")->focus();
sleep(1);
 
//7
echo "7.Via JS using Canavas' saved array:";
$Js = "var imgDateArrayEncoded = 'AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA/ZgD//2YA//9mAP//ZgD//2YA//9mAP//ZgD//2YA//9mAP//ZgD//2YA//9mAP//ZgD//2YA//9mAP//ZgD//2YA//9mAP//ZgD//2YA//9mAP//ZgD//2YA//9mAP//ZgD//2 YA//9mAP//ZgD//2YA//9mAP//ZgD//2YA//9mAP//ZgD//2YA//9mAP//ZgD//2YA//9mAP//ZgD//2YA//9mAP//ZgD//2YA//9mAP//ZgD//2YA//9mAP//ZgD//2YA//9mAP//ZgD//2YA//9mAP//ZgD//2YA//9mAP//ZgD//2YA//9mAP//ZgD//2YA/AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAD/ZgD//2YA//9mAP//ZgD//2YA//9mAP/

Python example:

# Additional paths
import sys
sys.path.insert(0, '../../../Templates PY/')
 
xhe_host = "127.0.0.1:7013"
from xweb_human_emulator import *
 
# Start
echo("<hr> <font color = blue> browser.xxxxxxxxx </font> <hr>")
 
browser.enable_fonts(false)
raw.enable_all_streams(true)
raw.add_disabled_response_url("canvas.js")
 
# 10 random canvas finger print
for i in range(0.9):
# 1
echo("1.Set information about the screen sensor:")
echo(browser.set_canvas_toDataURL("data:" + submitter.generate_random_text(4168,1)), "<br>")
# 2
echo("2.Let's go to the page for browser detection:")
echo(browser.navigate("panopticlick.eff.org/results?&t=111&dnt=111&a=111#fingerprintTable"), "<br>")
anchor.click_by_name("showFingerprintLink2")
sleep(1)
td.get_by_inner_text("Hash of canvas fingerprint", false) .focus()
sleep(7)
browser.navigate("about: blank")
browser.navigate("https://browserleaks.com/canvas", false)
sleep(7)
 
# 3
echo("3.Set the default screen sensor info:")
echo(browser.set_canvas_toDataURL(), "<br>")
 
# 4
echo("4.Go to the browser detection page:")
echo(browser.navigate("panopticlick.eff.org/results?&t=111&dnt=111&a=111#fingerprintTable"), "<br>")
anchor.click_by_name("showFingerprintLink2")
sleep(1)
td.get_by_inner_text("Hash of canvas fingerprint", false) .focus()
raw.enable_all_streams(false)
 
# end
echo("<hr> <br>")
 
# Quit
app.quit()

C# example:

#region using
 
using System;
using System.Diagnostics;
using System.Collections.Generic;
using System.Linq;
using System.IO;
using System.Text;
using System.Threading;
 
using XHE;
using XHE.XHE_DOM;
using XHE.XHE_System;
using XHE.XHE_Window;
using XHE.XHE_Web;
 
#endregion
 
 class Program: XHEScript
 {
static void Main(string [] args)
{
//init XHE
server = "127.0.0.1:7010";
InitXHE();
 
//Start
echo("<hr> <font color = blue> browser.set_app_info </font> <hr>");
 
//10 random canvas finger print
for(int i = 0; i <10; i ++)
{
//1
echo("1.Let's set information about the screen sensor:");
echo(browser.set_canvas_toDataURL("data:" + submitter.generate_random_text(10,1)) + "<br>");
 
//2
echo("2.Let's go to the page for browser detection:");
echo(browser.navigate("panopticlick.eff.org/results?&t=111&dnt=111&a=111#fingerprintTable") + "<br>");
anchor.click_by_name("showFingerprintLink2");
sleep(1);
td.get_by_inner_text("Hash of canvas fingerprint", 0).focus();
sleep(7);
browser.navigate("about: blank");
}
 
//3
echo("3.Set the default screen sensor information:");
echo(browser.set_canvas_toDataURL() + "<br>");
 
//4
echo("4.Let's go to the page for browser detection:");
echo(browser.navigate("panopticlick.eff.org/results?&t=111&dnt=111&a=111#fingerprintTable") + "<br>");
anchor.click_by_name("showFingerprintLink2");
sleep(1);
td.get_by_inner_text("Hash of canvas fingerprint", 0).focus();
 
//end
echo("<hr> <br>");
 
app.quit();
}
}

Java Script example:

//connect the object to control the emulator, if not already connected
xhe_host = "127.0.0.1:7022";
echo = require("../../../Templates JS/xweb_human_emulator.js");
 
//Start
echo("<hr> <font color = blue> browser.send_get_query </font> <hr>");
 
//10 random canvas finger print
for(var i = 0; i <10; i ++)
{
   //1
    echo("1.Let's add distortion to the canvas:");
    echo(browser.set_canvas_toDataURL("data:" + submitter.generate_random_text(10,1)) + "<br>");
 
   //2
    echo("2.Let's go to the page for browser detection:");
    echo(browser.navigate("panopticlick.eff.org/results?&t=111&dnt=111&a=111#fingerprintTable") + "<br>");
    anchor.click_by_name("showFingerprintLink2");
    app.sleep(1);
    td.get_by_inner_text("Hash of canvas fingerprint", false) .focus();
    app.sleep(7);
    browser.navigate("about: blank");
}
 
//3
echo("3.Set the default screen sensor information:");
echo(browser.set_canvas_toDataURL() + "<br>");
 
//4
echo("4.Let's go to the page for browser detection:");
echo(browser.navigate("panopticlick.eff.org/results?&t=111&dnt=111&a=111#fingerprintTable") + "<br>");
anchor.click_by_name("showFingerprintLink2");
app.sleep(1);
td.get_by_inner_text("Hash of canvas fingerprint", false) .focus();
 
//end
echo("<hr> <br>");
 
//Quit
app.quit();

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