New option ignoreRequireImports prevents obfuscation of require imports

src/cli/JavaScriptObfuscatorCLI.ts

@@ -1,3 +1,4 @@
+/* eslint-disable max-lines */
 import * as commander from 'commander';
 import * as path from 'path';
 
@@ -250,6 +251,10 @@ export class JavaScriptObfuscatorCLI implements IInitializable {
                 'Identifiers dictionary (comma separated) for `--identifier-names-generator dictionary` option',
                 ArraySanitizer
             )
+            .option(
+                '--ignore-require-imports <boolean>', 'Prevents obfuscation of `require` imports',
+                BooleanSanitizer
+            )
             .option(
                 '--log <boolean>', 'Enables logging of the information to the console',
                 BooleanSanitizer

src/container/modules/node-transformers/PreparingTransformersModule.ts

@@ -13,6 +13,7 @@ import { ConditionalCommentObfuscatingGuard } from '../../../node-transformers/p
 import { CustomCodeHelpersTransformer } from '../../../node-transformers/preparing-transformers/CustomCodeHelpersTransformer';
 import { EvalCallExpressionTransformer } from '../../../node-transformers/preparing-transformers/EvalCallExpressionTransformer';
 import { ForceTransformStringObfuscatingGuard } from '../../../node-transformers/preparing-transformers/obfuscating-guards/ForceTransformStringObfuscatingGuard';
+import { IgnoredRequireImportObfuscatingGuard } from '../../../node-transformers/preparing-transformers/obfuscating-guards/IgnoredRequireImportObfuscatingGuard';
 import { MetadataTransformer } from '../../../node-transformers/preparing-transformers/MetadataTransformer';
 import { ObfuscatingGuardsTransformer } from '../../../node-transformers/preparing-transformers/ObfuscatingGuardsTransformer';
 import { ParentificationTransformer } from '../../../node-transformers/preparing-transformers/ParentificationTransformer';
@@ -61,6 +62,11 @@ export const preparingTransformersModule: interfaces.ContainerModule = new Conta
         .inSingletonScope()
         .whenTargetNamed(ObfuscatingGuard.ForceTransformStringObfuscatingGuard);
 
+    bind<IObfuscatingGuard>(ServiceIdentifiers.INodeGuard)
+        .to(IgnoredRequireImportObfuscatingGuard)
+        .inSingletonScope()
+        .whenTargetNamed(ObfuscatingGuard.IgnoredRequireImportObfuscatingGuard);
+
     bind<IObfuscatingGuard>(ServiceIdentifiers.INodeGuard)
         .to(ReservedStringObfuscatingGuard)
         .inSingletonScope()

src/enums/node-transformers/preparing-transformers/obfuscating-guards/ObfuscatingGuard.ts

@@ -2,5 +2,6 @@ export enum ObfuscatingGuard {
     BlackListObfuscatingGuard = 'BlackListObfuscatingGuard',
     ConditionalCommentObfuscatingGuard = 'ConditionalCommentObfuscatingGuard',
     ForceTransformStringObfuscatingGuard = 'ForceTransformStringObfuscatingGuard',
+    IgnoredRequireImportObfuscatingGuard = 'IgnoredRequireImportObfuscatingGuard',
     ReservedStringObfuscatingGuard = 'ReservedStringObfuscatingGuard'
 }

src/interfaces/options/IOptions.ts

@@ -21,6 +21,7 @@ export interface IOptions {
     readonly identifierNamesGenerator: TTypeFromEnum<typeof IdentifierNamesGenerator>;
     readonly identifiersDictionary: string[];
     readonly identifiersPrefix: string;
+    readonly ignoreRequireImports: boolean;
     readonly inputFileName: string;
     readonly log: boolean;
     readonly numbersToExpressions: boolean;

src/node-transformers/preparing-transformers/ObfuscatingGuardsTransformer.ts

@@ -31,6 +31,7 @@ export class ObfuscatingGuardsTransformer extends AbstractNodeTransformer {
         ObfuscatingGuard.BlackListObfuscatingGuard,
         ObfuscatingGuard.ConditionalCommentObfuscatingGuard,
         ObfuscatingGuard.ForceTransformStringObfuscatingGuard,
+        ObfuscatingGuard.IgnoredRequireImportObfuscatingGuard,
         ObfuscatingGuard.ReservedStringObfuscatingGuard
     ];
 

src/node-transformers/preparing-transformers/obfuscating-guards/IgnoredRequireImportObfuscatingGuard.ts

@@ -0,0 +1,46 @@
+import { inject, injectable } from 'inversify';
+
+import * as ESTree from 'estree';
+
+import { IObfuscatingGuard } from '../../../interfaces/node-transformers/preparing-transformers/obfuscating-guards/IObfuscatingGuard';
+import { IOptions } from '../../../interfaces/options/IOptions';
+
+import { ObfuscatingGuardResult } from '../../../enums/node/ObfuscatingGuardResult';
+
+import { ServiceIdentifiers } from '../../../container/ServiceIdentifiers';
+
+import { NodeGuards } from '../../../node/NodeGuards';
+
+@injectable()
+export class IgnoredRequireImportObfuscatingGuard implements IObfuscatingGuard {
+    /**
+     * @type {IOptions}
+     */
+    private readonly options: IOptions;
+
+    /**
+     * @param {IOptions} options
+     */
+    public constructor (
+        @inject(ServiceIdentifiers.IOptions) options: IOptions
+    ) {
+        this.options = options;
+    }
+
+    /**
+     * @param {Node} node
+     * @returns {ObfuscatingGuardResult}
+     */
+    public check (node: ESTree.Node): ObfuscatingGuardResult {
+        if (
+            this.options.ignoreRequireImports
+            && NodeGuards.isCallExpressionNode(node)
+            && NodeGuards.isIdentifierNode(node.callee)
+            && node.callee.name === 'require'
+        ) {
+            return ObfuscatingGuardResult.Ignore;
+        }
+
+        return ObfuscatingGuardResult.Transform;
+    }
+}

src/options/Options.ts

@@ -165,6 +165,12 @@ export class Options implements IOptions {
     @ArrayNotEmpty()
     public readonly identifiersDictionary!: string[];
 
+    /**
+     * @type {boolean}
+     */
+    @IsBoolean()
+    public readonly ignoreRequireImports!: boolean;
+
     /**
      * @type {string}
      */

src/options/presets/Default.ts

@@ -23,6 +23,7 @@ export const DEFAULT_PRESET: TInputOptions = Object.freeze({
     identifierNamesGenerator: IdentifierNamesGenerator.HexadecimalIdentifierNamesGenerator,
     identifiersPrefix: '',
     identifiersDictionary: [],
+    ignoreRequireImports: false,
     inputFileName: '',
     log: false,
     numbersToExpressions: false,

src/options/presets/NoCustomNodes.ts

@@ -21,6 +21,7 @@ export const NO_ADDITIONAL_NODES_PRESET: TInputOptions = Object.freeze({
     identifierNamesGenerator: IdentifierNamesGenerator.HexadecimalIdentifierNamesGenerator,
     identifiersPrefix: '',
     identifiersDictionary: [],
+    ignoreRequireImports: false,
     inputFileName: '',
     log: false,
     numbersToExpressions: false,