sxw.js 4.0.0

SXW.js

SXW.js is a javascript library that is used to display console warnings against Self XSS attacks.

Usage

Using nuget

1. Install the nuget package
2. Include the sxw.js file from the content folder into your website.
3. At the end of the HTML document call the printWarning function in window.sxwjs similar to the one mentioned above.

Using npm

1. Install the npm package using

   npm i @sxwjs/sxwjs
   

2. Import sxwjs module
3. Call the required function inside sxwjs module

   import sxwjs from '@sxwjs/sxwjs';
   ...
   ...
   sxwjs.printWarning();
   

Using js file directly

1. Include the sxw.js file in your website.
2. The script will register built-in functions into window.sxwjs object.
3. At the end of the HTML document call the printWarning function in window.sxwjs as shown in the sample code.

   <script>
       window.sxwjs.printWarning();
   </script>
   

Customizations

Sections

The warning displayed in console contains three sections.

1. A huge STOP sign
2. A caution text in bold
3. A detailed message saying that this section is intented for developers only. It also warns aginst copy pasting content in the console.

Configuration

SXW.js has a config object with the following variables,

Example js object:

var config = {
        stopColor: "red",
        stopFontWeight: "bold",
        cautionFontWeight: "bold",
        cautionFontSize: "15px",
    };

Content

SXW.js has a predefined object with the following variables for defining the content to be displayed,

var content = {
        en: {
            stopText: "*********  *********  *********  *********\n***           ***     ***   ***  ***   ***\n***           ***     ***   ***  ***   ***\n*********     ***     ***   ***  *********\n      ***     ***     ***   ***  ***\n      ***     ***     ***   ***  ***\n*********     ***     *********  ***",
            cautionText: "Caution: DO NOT PROCEED.",
            warningText: "This section is intended for developers only. Don't copy paste anything in this area.\nIf someone told you to copy and paste something here, it is a scam and will give them access to your account. In that case, kindly report this to our support team."
        }
    };

You can define content in multiple languages as shown here. Just pass the appropriate language code to the printing function.

Functions

There are three functions in the library that will be available into the window.sxwjs object.

1. printStop - Prints just the huge stop sign.
2. printCautionNotice - Prints the caution notice.
3. printWarningText - Prints the the detailed error message.
4. printWarning - Prints all the three sections.
5. setConfig - Assigns the provided configuration.
6. getConfig - Retrives the configuration.
7. setContent - Can be used to modifiy the content such as warningText, cautionNotice, etc...
8. getContent - Retrives the content that will be displayed on the console.

None of these functions are called by default. You can choose to call them as you wish.

Example Usage:

window.sxwjs.setConfig(myConfig);
window.sxwjs.printWarning('en');
window.sxwjs.printStop('en');
window.sxwjs.printCautionNotice('en');