All files / src/custom-nodes/unicode-array-nodes UnicodeArrayDecodeNode.ts

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import { INode } from "../../interfaces/nodes/INode";
import { IOptions } from "../../interfaces/IOptions";
 
import { TNodeWithBlockStatement } from "../../types/TNodeWithBlockStatement";
 
import { AppendState } from "../../enums/AppendState";
import { JSFuck } from "../../enums/JSFuck";
 
import { NO_CUSTOM_NODES_PRESET } from "../../preset-options/NoCustomNodesPreset";
 
import { JavaScriptObfuscator } from '../../JavaScriptObfuscator';
import { Node } from '../Node';
import { NodeUtils } from "../../NodeUtils";
import { Utils } from "../../Utils";
 
export class UnicodeArrayDecodeNode extends Node {
    /**
     * @type {AppendState}
     */
    protected appendState: AppendState = AppendState.AfterObfuscation;
 
    /**
     * @type {string[]}
     */
    private unicodeArray: string[];
 
    /**
     * @type {string}
     */
    private unicodeArrayName: string;
 
    /**
     * @param unicodeArrayName
     * @param unicodeArray
     * @param options
     */
    constructor (
        unicodeArrayName: string,
        unicodeArray: string[],
        options: IOptions
    ) {
        super(options);
 
        this.unicodeArrayName = unicodeArrayName;
        this.unicodeArray = unicodeArray;
    }
 
    /**
     * @param blockScopeNode
     */
    public appendNode (blockScopeNode: TNodeWithBlockStatement): void {
        if (!this.unicodeArray.length) {
            return;
        }
 
        NodeUtils.insertNodeAtIndex(blockScopeNode.body, this.getNode(), 1);
    }
 
    /**
     * @returns {INode}
     */
    public getNode (): INode {
        return super.getNode();
    }
 
    /**
     * @returns {INode}
     */
    protected getNodeStructure (): INode {
        const environmentName: string = Utils.getRandomVariableName(),
            forLoopFunctionName: string = Utils.getRandomVariableName(),
            indexVariableName: string = Utils.getRandomVariableName(),
            tempArrayName: string = Utils.getRandomVariableName();
 
        let code: string = '';
 
        if (this.options.selfDefending) {
            code = `
                var ${environmentName} = function(){return ${Utils.stringToUnicode('dev')};};
                   
                Function(${Utils.stringToUnicode(`return/\\w+ *\\(\\) *{\\w+ *['|"].+['|"];? *}/`)})()[${Utils.stringToUnicode('test')}](${environmentName}[${Utils.stringToUnicode('toString')}]()) !== ${JSFuck.True} && !${this.unicodeArrayName}++ ? []['filter']['constructor'](${Utils.stringToJSFuck('while')} + '(${JSFuck.True}){}')() : Function(${Utils.stringToUnicode('a')}, atob(${Utils.stringToUnicode(Utils.btoa('a.call()'))}))(${forLoopFunctionName}) ? []['filter']['constructor'](${Utils.stringToJSFuck('while')} + '(${JSFuck.False}){}')() : []['filter']['constructor'](${Utils.stringToJSFuck('while')} + '(${JSFuck.False}){}')();
            `;
        } else {
            code = `${forLoopFunctionName}();`;
        }
 
        return NodeUtils.convertCodeToStructure(`
            (function () {
                ${JavaScriptObfuscator.obfuscate(`
                    (function () {
                        var object = []['filter']['constructor']('return this')();
                        var chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=';
            
                        object.atob || (
                            object.atob = function(input) {
                                var str = String(input).replace(/=+$/, '');
                                for (
                                    var bc = 0, bs, buffer, idx = 0, output = '';
                                    buffer = str.charAt(idx++);
                                    ~buffer && (bs = bc % 4 ? bs * 64 + buffer : buffer,
                                        bc++ % 4) ? output += String.fromCharCode(255 & bs >> (-2 * bc & 6)) : 0
                                ) {
                                    buffer = chars.indexOf(buffer);
                                }
                            return output;
                        });
                    })();
                `, NO_CUSTOM_NODES_PRESET).getObfuscatedCode()}
              
                var ${forLoopFunctionName} = function () {
                    var ${tempArrayName} = [];
                    
                    for (var ${indexVariableName} in ${this.unicodeArrayName}) {
                        ${tempArrayName}[${Utils.stringToUnicode('push')}](decodeURI(atob(${this.unicodeArrayName}[${indexVariableName}])));
                    }
                    
                    ${this.unicodeArrayName} = ${tempArrayName};
                };
                
                ${code}
            })();
        `);
    }
}