mirror of
https://github.com/javascript-obfuscator/javascript-obfuscator
synced 2026-08-09 12:42:29 +00:00
unicodeEscapeSequence logic moved to the EscapeSequenceTransformer
This commit is contained in:
sanex
-327
@@ -1,327 +0,0 @@
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import { inject, injectable, } from 'inversify';
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import { ServiceIdentifiers } from '../../container/ServiceIdentifiers';
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import * as ESTree from 'estree';
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import { TInitialData } from '../../types/TInitialData';
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import { TNodeWithLexicalScopeStatements } from '../../types/node/TNodeWithLexicalScopeStatements';
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import { TStatement } from '../../types/node/TStatement';
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import { TStringArrayScopeCallsWrapperNamesDataByEncoding } from '../../types/node-transformers/string-array-transformers/TStringArrayScopeCallsWrapperNamesDataByEncoding';
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import { TStringArrayTransformerCustomNodeFactory } from '../../types/container/custom-nodes/TStringArrayTransformerCustomNodeFactory';
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import { ICustomNode } from '../../interfaces/custom-nodes/ICustomNode';
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import { IOptions } from '../../interfaces/options/IOptions';
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import { IRandomGenerator } from '../../interfaces/utils/IRandomGenerator';
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import { IStringArrayScopeCallsWrapperLexicalScopeData } from '../../interfaces/node-transformers/string-array-transformers/IStringArrayScopeCallsWrapperLexicalScopeData';
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import { IStringArrayScopeCallsWrapperLexicalScopeDataStorage } from '../../interfaces/storages/string-array-transformers/IStringArrayScopeCallsWrapperLexicalScopeDataStorage';
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import { IStringArrayScopeCallsWrapperNamesData } from '../../interfaces/node-transformers/string-array-transformers/IStringArrayScopeCallsWrapperNamesData';
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import { IStringArrayScopeCallsWrapperNamesDataStorage } from '../../interfaces/storages/string-array-transformers/IStringArrayScopeCallsWrapperNamesDataStorage';
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import { IStringArrayStorage } from '../../interfaces/storages/string-array-transformers/IStringArrayStorage';
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import { IVisitedLexicalScopeNodesStackStorage } from '../../interfaces/storages/string-array-transformers/IVisitedLexicalScopeNodesStackStorage';
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import { IVisitor } from '../../interfaces/node-transformers/IVisitor';
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import { NodeTransformationStage } from '../../enums/node-transformers/NodeTransformationStage';
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import { StringArrayTransformerCustomNode } from '../../enums/custom-nodes/StringArrayTransformerCustomNode';
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import { StringArrayWrappersType } from '../../enums/node-transformers/string-array-transformers/StringArrayWrappersType';
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import { AbstractNodeTransformer } from '../AbstractNodeTransformer';
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import { NodeAppender } from '../../node/NodeAppender';
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import { NodeGuards } from '../../node/NodeGuards';
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import { StringArrayScopeCallsWrapperVariableNode } from '../../custom-nodes/string-array-nodes/StringArrayScopeCallsWrapperVariableNode';
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import { StringArrayScopeCallsWrapperFunctionNode } from '../../custom-nodes/string-array-nodes/StringArrayScopeCallsWrapperFunctionNode';
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@injectable()
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export class StringArrayScopeCallsWrapperTransformer extends AbstractNodeTransformer {
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/**
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* @type {IStringArrayStorage}
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*/
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private readonly stringArrayStorage: IStringArrayStorage;
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/**
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* @type {IStringArrayScopeCallsWrapperLexicalScopeDataStorage}
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*/
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private readonly stringArrayScopeCallsWrapperLexicalScopeDataStorage: IStringArrayScopeCallsWrapperLexicalScopeDataStorage;
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/**
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* @type {IStringArrayScopeCallsWrapperNamesDataStorage}
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*/
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private readonly stringArrayScopeCallsWrapperNamesDataStorage: IStringArrayScopeCallsWrapperNamesDataStorage;
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/**
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* @type {TStringArrayTransformerCustomNodeFactory}
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*/
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private readonly stringArrayTransformerCustomNodeFactory: TStringArrayTransformerCustomNodeFactory;
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/**
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* @type {IVisitedLexicalScopeNodesStackStorage}
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*/
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private readonly visitedLexicalScopeNodesStackStorage: IVisitedLexicalScopeNodesStackStorage;
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/**
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* @param {IRandomGenerator} randomGenerator
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* @param {IOptions} options
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* @param {IVisitedLexicalScopeNodesStackStorage} visitedLexicalScopeNodesStackStorage
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* @param {IStringArrayStorage} stringArrayStorage
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* @param {IStringArrayScopeCallsWrapperNamesDataStorage} stringArrayScopeCallsWrapperNamesDataStorage
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* @param {IStringArrayScopeCallsWrapperLexicalScopeDataStorage} stringArrayScopeCallsWrapperLexicalScopeDataStorage
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* @param {TStringArrayTransformerCustomNodeFactory} stringArrayTransformerCustomNodeFactory
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*/
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public constructor (
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@inject(ServiceIdentifiers.IRandomGenerator) randomGenerator: IRandomGenerator,
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@inject(ServiceIdentifiers.IOptions) options: IOptions,
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@inject(ServiceIdentifiers.IVisitedLexicalScopeNodesStackStorage) visitedLexicalScopeNodesStackStorage: IVisitedLexicalScopeNodesStackStorage,
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@inject(ServiceIdentifiers.IStringArrayStorage) stringArrayStorage: IStringArrayStorage,
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@inject(ServiceIdentifiers.IStringArrayScopeCallsWrapperNamesDataStorage) stringArrayScopeCallsWrapperNamesDataStorage: IStringArrayScopeCallsWrapperNamesDataStorage,
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@inject(ServiceIdentifiers.IStringArrayScopeCallsWrapperLexicalScopeDataStorage) stringArrayScopeCallsWrapperLexicalScopeDataStorage: IStringArrayScopeCallsWrapperLexicalScopeDataStorage,
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@inject(ServiceIdentifiers.Factory__IStringArrayTransformerCustomNode)
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stringArrayTransformerCustomNodeFactory: TStringArrayTransformerCustomNodeFactory
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) {
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super(randomGenerator, options);
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this.visitedLexicalScopeNodesStackStorage = visitedLexicalScopeNodesStackStorage;
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this.stringArrayStorage = stringArrayStorage;
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this.stringArrayScopeCallsWrapperNamesDataStorage = stringArrayScopeCallsWrapperNamesDataStorage;
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this.stringArrayScopeCallsWrapperLexicalScopeDataStorage = stringArrayScopeCallsWrapperLexicalScopeDataStorage;
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this.stringArrayTransformerCustomNodeFactory = stringArrayTransformerCustomNodeFactory;
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}
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/**
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* @param {NodeTransformationStage} nodeTransformationStage
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* @returns {IVisitor | null}
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*/
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public getVisitor (nodeTransformationStage: NodeTransformationStage): IVisitor | null {
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if (!this.options.stringArrayWrappersCount) {
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return null;
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}
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switch (nodeTransformationStage) {
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case NodeTransformationStage.StringArray:
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return {
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enter: (node: ESTree.Node, parentNode: ESTree.Node | null): void => {
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if (parentNode && NodeGuards.isNodeWithLexicalScopeStatements(node, parentNode)) {
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this.onLexicalScopeNodeEnter(node);
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}
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},
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leave: (node: ESTree.Node, parentNode: ESTree.Node | null): ESTree.Node | undefined => {
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if (parentNode && NodeGuards.isNodeWithLexicalScopeStatements(node, parentNode)) {
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this.onLexicalScopeNodeLeave();
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return this.transformNode(node);
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}
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}
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};
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default:
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return null;
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}
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}
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/**
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* @param {TNodeWithLexicalScopeStatements} lexicalScopeBodyNode
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* @returns {TNodeWithLexicalScopeStatements}
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*/
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public transformNode (
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lexicalScopeBodyNode: TNodeWithLexicalScopeStatements
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): TNodeWithLexicalScopeStatements {
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const stringArrayScopeCallsWrapperNamesDataByEncoding: TStringArrayScopeCallsWrapperNamesDataByEncoding | null =
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this.stringArrayScopeCallsWrapperNamesDataStorage.get(lexicalScopeBodyNode) ?? null;
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const stringArrayScopeCallsWrapperNamesLexicalScopeData: IStringArrayScopeCallsWrapperLexicalScopeData | null =
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this.stringArrayScopeCallsWrapperLexicalScopeDataStorage.get(lexicalScopeBodyNode) ?? null;
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if (!stringArrayScopeCallsWrapperNamesDataByEncoding || !stringArrayScopeCallsWrapperNamesLexicalScopeData) {
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return lexicalScopeBodyNode;
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}
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const stringArrayScopeCallsWrapperNamesDataList: (IStringArrayScopeCallsWrapperNamesData | undefined)[] =
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Object.values(stringArrayScopeCallsWrapperNamesDataByEncoding);
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// iterates over data for each encoding type
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for (const stringArrayScopeCallsWrapperNamesData of stringArrayScopeCallsWrapperNamesDataList) {
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if (!stringArrayScopeCallsWrapperNamesData) {
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continue;
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}
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const {names} = stringArrayScopeCallsWrapperNamesData;
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const namesLength: number = names.length;
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/**
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* Iterates over each name of scope wrapper name
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* Reverse iteration appends wrappers at index `0` at the correct order
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*/
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for (let i = namesLength - 1; i >= 0; i--) {
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const stringArrayScopeCallsWrapperName: string = names[i];
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const [
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upperStringArrayCallsWrapperName,
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upperStringArrayCallsWrapperShiftedIndex,
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] = this.getUpperStringArrayCallsWrapperName(
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stringArrayScopeCallsWrapperNamesData,
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stringArrayScopeCallsWrapperNamesLexicalScopeData,
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);
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const stringArrayScopeCallsWrapperNode: TStatement[] = this.getStringArrayScopeCallsWrapperNode(
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stringArrayScopeCallsWrapperName,
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upperStringArrayCallsWrapperName,
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upperStringArrayCallsWrapperShiftedIndex
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);
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NodeAppender.prepend(
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lexicalScopeBodyNode,
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stringArrayScopeCallsWrapperNode
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);
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}
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}
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return lexicalScopeBodyNode;
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}
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/**
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* @param {IStringArrayScopeCallsWrapperNamesData} stringArrayScopeCallsWrapperNamesData
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* @param {IStringArrayScopeCallsWrapperLexicalScopeData} stringArrayScopeCallsWrapperNamesLexicalScopeData
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* @returns {[name: string, index: number]}
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*/
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private getRootStringArrayCallsWrapperData (
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stringArrayScopeCallsWrapperNamesData: IStringArrayScopeCallsWrapperNamesData,
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stringArrayScopeCallsWrapperNamesLexicalScopeData: IStringArrayScopeCallsWrapperLexicalScopeData
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): [name: string, index: number] {
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const {encoding} = stringArrayScopeCallsWrapperNamesData;
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const {resultShiftedIndex} = stringArrayScopeCallsWrapperNamesLexicalScopeData;
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return [
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this.stringArrayStorage.getStorageCallsWrapperName(encoding),
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resultShiftedIndex
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];
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}
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/**
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* @param {IStringArrayScopeCallsWrapperNamesData} stringArrayScopeCallsWrapperNamesData
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* @param {IStringArrayScopeCallsWrapperLexicalScopeData} stringArrayScopeCallsWrapperNamesLexicalScopeData
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* @returns {[name: string, index: number]}
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*/
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private getUpperStringArrayCallsWrapperName (
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stringArrayScopeCallsWrapperNamesData: IStringArrayScopeCallsWrapperNamesData,
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stringArrayScopeCallsWrapperNamesLexicalScopeData: IStringArrayScopeCallsWrapperLexicalScopeData
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): [name: string, index: number] {
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const {encoding} = stringArrayScopeCallsWrapperNamesData;
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const {scopeShiftedIndex} = stringArrayScopeCallsWrapperNamesLexicalScopeData;
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const rootStringArrayCallsWrapperData = this.getRootStringArrayCallsWrapperData(
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stringArrayScopeCallsWrapperNamesData,
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stringArrayScopeCallsWrapperNamesLexicalScopeData
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);
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if (!this.options.stringArrayWrappersChainedCalls) {
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return rootStringArrayCallsWrapperData;
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}
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const parentLexicalScopeBodyNode: TNodeWithLexicalScopeStatements | null =
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this.visitedLexicalScopeNodesStackStorage.getLastElement()
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?? null;
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if (!parentLexicalScopeBodyNode) {
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return rootStringArrayCallsWrapperData;
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}
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const parentLexicalScopeNamesDataByEncoding: TStringArrayScopeCallsWrapperNamesDataByEncoding | null = this.stringArrayScopeCallsWrapperNamesDataStorage
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.get(parentLexicalScopeBodyNode) ?? null;
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const parentLexicalScopeNames: string[] | null = parentLexicalScopeNamesDataByEncoding?.[encoding]?.names ?? null;
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if (!parentLexicalScopeNames?.length) {
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return rootStringArrayCallsWrapperData;
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}
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const upperStringArrayCallsWrapperName: string = this.randomGenerator
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.getRandomGenerator()
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.pickone(parentLexicalScopeNames);
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return [
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upperStringArrayCallsWrapperName,
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scopeShiftedIndex
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];
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}
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/**
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* @param {string} stringArrayScopeCallsWrapperName
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* @param {string} upperStringArrayCallsWrapperName
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* @param {number} stringArrayScopeCallsWrapperShiftedIndex
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* @returns {TStatement[]}
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*/
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private getStringArrayScopeCallsWrapperNode (
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stringArrayScopeCallsWrapperName: string,
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upperStringArrayCallsWrapperName: string,
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stringArrayScopeCallsWrapperShiftedIndex: number
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): TStatement[] {
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switch (this.options.stringArrayWrappersType) {
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case StringArrayWrappersType.Function:
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return this.getStringArrayScopeCallsWrapperFunctionNode(
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stringArrayScopeCallsWrapperName,
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upperStringArrayCallsWrapperName,
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stringArrayScopeCallsWrapperShiftedIndex
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);
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case StringArrayWrappersType.Variable:
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default:
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return this.getStringArrayScopeCallsWrapperVariableNode(
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stringArrayScopeCallsWrapperName,
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upperStringArrayCallsWrapperName
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);
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}
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}
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/**
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* @param {string} stringArrayScopeCallsWrapperName
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* @param {string} upperStringArrayCallsWrapperName
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* @returns {TStatement[]}
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*/
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private getStringArrayScopeCallsWrapperVariableNode (
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stringArrayScopeCallsWrapperName: string,
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upperStringArrayCallsWrapperName: string
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): TStatement[] {
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const stringArrayScopeCallsWrapperVariableNode: ICustomNode<TInitialData<StringArrayScopeCallsWrapperVariableNode>> =
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this.stringArrayTransformerCustomNodeFactory(
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StringArrayTransformerCustomNode.StringArrayScopeCallsWrapperVariableNode
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);
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stringArrayScopeCallsWrapperVariableNode.initialize(
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stringArrayScopeCallsWrapperName,
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upperStringArrayCallsWrapperName
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);
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return stringArrayScopeCallsWrapperVariableNode.getNode();
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}
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/**
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* @param {string} stringArrayScopeCallsWrapperName
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* @param {string} upperStringArrayCallsWrapperName
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* @param {number} stringArrayScopeCallsWrapperShiftedIndex
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* @returns {TStatement[]}
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*/
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private getStringArrayScopeCallsWrapperFunctionNode (
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stringArrayScopeCallsWrapperName: string,
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upperStringArrayCallsWrapperName: string,
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stringArrayScopeCallsWrapperShiftedIndex: number
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): TStatement[] {
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const stringArrayScopeCallsWrapperFunctionNode: ICustomNode<TInitialData<StringArrayScopeCallsWrapperFunctionNode>> =
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this.stringArrayTransformerCustomNodeFactory(
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StringArrayTransformerCustomNode.StringArrayScopeCallsWrapperFunctionNode
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);
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stringArrayScopeCallsWrapperFunctionNode.initialize(
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stringArrayScopeCallsWrapperName,
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upperStringArrayCallsWrapperName,
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stringArrayScopeCallsWrapperShiftedIndex
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);
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return stringArrayScopeCallsWrapperFunctionNode.getNode();
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}
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/**
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* @param {TNodeWithLexicalScopeStatements} lexicalScopeBodyNode
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*/
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private onLexicalScopeNodeEnter (lexicalScopeBodyNode: TNodeWithLexicalScopeStatements): void {
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this.visitedLexicalScopeNodesStackStorage.push(lexicalScopeBodyNode);
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}
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private onLexicalScopeNodeLeave (): void {
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this.visitedLexicalScopeNodesStackStorage.pop();
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}
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}
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