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/* eslint-disable max-lines */
import * as commander from 'commander';
import * as path from 'path';
import { TInputCLIOptions } from '../types/options/TInputCLIOptions';
import { TInputOptions } from '../types/options/TInputOptions';
import { IFileData } from '../interfaces/cli/IFileData';
import { IInitializable } from '../interfaces/IInitializable';
import { IObfuscationResult } from '../interfaces/source-code/IObfuscationResult';
import { ProApiClient } from '../pro-api/ProApiClient';
import { IProObfuscationResult } from '../interfaces/pro-api/IProApiClient';
import { initializable } from '../decorators/Initializable';
import { IdentifierNamesGenerator } from '../enums/generators/identifier-names-generators/IdentifierNamesGenerator';
import { LoggingPrefix } from '../enums/logger/LoggingPrefix';
import { ObfuscationTarget } from '../enums/ObfuscationTarget';
import { OptionsPreset } from '../enums/options/presets/OptionsPreset';
import { RenamePropertiesMode } from '../enums/node-transformers/rename-properties-transformers/RenamePropertiesMode';
import { SourceMapMode } from '../enums/source-map/SourceMapMode';
import { SourceMapSourcesMode } from '../enums/source-map/SourceMapSourcesMode';
import { StringArrayEncoding } from '../enums/node-transformers/string-array-transformers/StringArrayEncoding';
import { StringArrayIndexesType } from '../enums/node-transformers/string-array-transformers/StringArrayIndexesType';
import { StringArrayWrappersType } from '../enums/node-transformers/string-array-transformers/StringArrayWrappersType';
import { DEFAULT_PRESET } from '../options/presets/Default';
import { ArraySanitizer } from './sanitizers/ArraySanitizer';
import { BooleanSanitizer } from './sanitizers/BooleanSanitizer';
import { CLIUtils } from './utils/CLIUtils';
import { IdentifierNamesCacheFileUtils } from './utils/IdentifierNamesCacheFileUtils';
import { JavaScriptObfuscator } from '../JavaScriptObfuscatorFacade';
import { Logger } from '../logger/Logger';
import { ObfuscatedCodeFileUtils } from './utils/ObfuscatedCodeFileUtils';
import { SourceCodeFileUtils } from './utils/SourceCodeFileUtils';
import { Utils } from '../utils/Utils';
import { VMTargetFunctionsMode } from '../pro-api/enums/VMTargetFunctionsMode';
import { VMBytecodeFormat } from '../pro-api/enums/VMBytecodeFormat';
import { StrictModeSanitizer } from './sanitizers/StrictModeSanitizer';
export class JavaScriptObfuscatorCLI implements IInitializable {
/**
* @type {string[]}
*/
public static readonly availableInputExtensions: string[] = ['.js', '.mjs', '.cjs'];
/**
* @type {BufferEncoding}
*/
public static readonly encoding: BufferEncoding = 'utf8';
/**
* @type {string}
*/
public static readonly obfuscatedFilePrefix: string = '-obfuscated';
/**
* @type {commander.Command}
*/
@initializable()
private commands!: commander.Command;
/**
* @type {IdentifierNamesCacheFileUtils}
*/
@initializable()
private identifierNamesCacheFileUtils!: IdentifierNamesCacheFileUtils;
/**
* @type {TInputCLIOptions}
*/
@initializable()
private inputCLIOptions!: TInputCLIOptions;
/**
* @type {string}
*/
@initializable()
private inputPath!: string;
/**
* @type {SourceCodeFileUtils}
*/
@initializable()
private sourceCodeFileUtils!: SourceCodeFileUtils;
/**
* @type {ObfuscatedCodeFileUtils}
*/
@initializable()
private obfuscatedCodeFileUtils!: ObfuscatedCodeFileUtils;
/**
* @type {string[]}
*/
private readonly arguments: string[];
/**
* @type {string[]}
*/
private readonly rawArguments: string[];
/**
* @param {string[]} argv
*/
public constructor(argv: string[]) {
this.rawArguments = argv;
this.arguments = argv.slice(2);
}
/**
* @param {TInputCLIOptions} inputOptions
* @returns {TInputOptions}
*/
private static buildOptions(inputOptions: TInputCLIOptions): TInputOptions {
const inputCLIOptions: TInputOptions = JavaScriptObfuscatorCLI.filterOptions(inputOptions);
const configFilePath: string | undefined = inputOptions.config;
const configFileLocation: string = configFilePath ? path.resolve(configFilePath, '.') : '';
const configFileOptions: TInputOptions = configFileLocation ? CLIUtils.getUserConfig(configFileLocation) : {};
return {
...DEFAULT_PRESET,
...configFileOptions,
...inputCLIOptions
};
}
/**
* @param {TObject} options
* @returns {TInputOptions}
*/
private static filterOptions(options: TInputCLIOptions): TInputOptions {
const filteredOptions: TInputOptions = {};
Object.keys(options).forEach((option: keyof TInputCLIOptions) => {
if (options[option] === undefined) {
return;
}
filteredOptions[option] = options[option];
});
return filteredOptions;
}
public initialize(): void {
this.commands = new commander.Command();
this.configureCommands();
this.configureHelp();
this.inputPath = path.normalize(this.commands.args[0] || '');
this.inputCLIOptions = JavaScriptObfuscatorCLI.buildOptions(this.commands.opts());
this.sourceCodeFileUtils = new SourceCodeFileUtils(this.inputPath, this.inputCLIOptions);
this.obfuscatedCodeFileUtils = new ObfuscatedCodeFileUtils(this.inputPath, this.inputCLIOptions);
this.identifierNamesCacheFileUtils = new IdentifierNamesCacheFileUtils(
this.inputCLIOptions.identifierNamesCachePath
);
}
public async run(): Promise<void> {
const canShowHelp: boolean = !this.arguments.length || this.arguments.includes('--help');
if (canShowHelp) {
this.commands.outputHelp();
return;
}
const sourceCodeData: IFileData[] = this.sourceCodeFileUtils.readSourceCode();
await this.processSourceCodeData(sourceCodeData);
}
private configureCommands(): void {
this.commands
.usage('<inputPath> [options]')
.version(Utils.buildVersionMessage(process.env.VERSION, process.env.BUILD_TIMESTAMP), '-v, --version')
.option('-o, --output <path>', 'Output path for obfuscated code')
.option('--compact <boolean>', 'Disable one line output code compacting', BooleanSanitizer)
.option('--config <boolean>', 'Name of js / json config file')
.option('--control-flow-flattening <boolean>', 'Enables control flow flattening', BooleanSanitizer)
.option(
'--control-flow-flattening-threshold <number>',
'The probability that the control flow flattening transformation will be applied to the node',
parseFloat
)
.option('--dead-code-injection <boolean>', 'Enables dead code injection', BooleanSanitizer)
.option(
'--dead-code-injection-threshold <number>',
'The probability that the dead code injection transformation will be applied to the node',
parseFloat
)
.option(
'--debug-protection <boolean>',
'Disable browser Debug panel (can cause DevTools enabled browser freeze)',
BooleanSanitizer
)
.option(
'--debug-protection-interval <number>',
'Sets interval in milliseconds for debug protection so it is working even after page was loaded (can cause DevTools enabled browser freeze)',
parseInt
)
.option(
'--disable-console-output <boolean>',
'Allow console.log, console.info, console.error and console.warn messages output into browser console',
BooleanSanitizer
)
.option(
'--domain-lock <list> (comma separated, without whitespaces)',
'Allows to run the obfuscated source code only on specific domains and/or sub-domains (comma separated)',
ArraySanitizer
)
.option(
'--domain-lock-redirect-url <string>',
"Allows the browser to be redirected to a passed URL if the source code isn't run on the domains specified by --domain-lock"
)
.option(
'--exclude <list> (comma separated, without whitespaces)',
'A filename or glob which indicates files to exclude from obfuscation',
ArraySanitizer
)
.option(
'--force-transform-strings <list> (comma separated, without whitespaces)',
'Enables force transformation of string literals, which being matched by passed RegExp patterns (comma separated)',
ArraySanitizer
)
.option('--identifier-names-cache-path <string>', 'Sets path for identifier names cache')
.option(
'--identifier-names-generator <string>',
'Sets identifier names generator. ' +
`Values: ${CLIUtils.stringifyOptionAvailableValues(IdentifierNamesGenerator)}. ` +
`Default: ${IdentifierNamesGenerator.HexadecimalIdentifierNamesGenerator}`
)
.option('--identifiers-prefix <string>', 'Sets prefix for all global identifiers')
.option(
'--identifiers-dictionary <list> (comma separated, without whitespaces)',
'Identifiers dictionary (comma separated) for `--identifier-names-generator dictionary` option',
ArraySanitizer
)
.option(
'--ignore-imports <boolean>',
'Prevents obfuscation of `require` and `dynamic` imports',
BooleanSanitizer
)
.option('--log <boolean>', 'Enables logging of the information to the console', BooleanSanitizer)
.option('--numbers-to-expressions <boolean>', 'Enables numbers conversion to expressions', BooleanSanitizer)
.option(
'--options-preset <string>',
'Allows to set options preset. ' +
`Values: ${CLIUtils.stringifyOptionAvailableValues(OptionsPreset)}. ` +
`Default: ${OptionsPreset.Default}`
)
.option(
'--reserved-names <list> (comma separated, without whitespaces)',
'Disables obfuscation and generation of identifiers, which being matched by passed RegExp patterns (comma separated)',
ArraySanitizer
)
.option(
'--reserved-strings <list> (comma separated, without whitespaces)',
'Disables transformation of string literals, which being matched by passed RegExp patterns (comma separated)',
ArraySanitizer
)
.option(
'--rename-globals <boolean>',
'Allows to enable obfuscation of global variable and function names with declaration',
BooleanSanitizer
)
.option(
'--rename-properties <boolean>',
'UNSAFE: Enables renaming of property names. This probably MAY break your code',
BooleanSanitizer
)
.option(
'--rename-properties-mode <boolean>',
'Specify `--rename-properties` option mode. ' +
`Values: ${CLIUtils.stringifyOptionAvailableValues(RenamePropertiesMode)}. ` +
`Default: ${RenamePropertiesMode.Safe}`
)
.option(
'--seed <string|number>',
'Sets seed for random generator. This is useful for creating repeatable results.',
parseFloat
)
.option('--self-defending <boolean>', 'Disables self-defending for obfuscated code', BooleanSanitizer)
.option(
'--simplify <boolean>',
'Enables additional code obfuscation through simplification',
BooleanSanitizer
)
.option('--source-map <boolean>', 'Enables source map generation', BooleanSanitizer)
.option(
'--source-map-base-url <string>',
'Sets base url to the source map import url when `--source-map-mode=separate`'
)
.option(
'--source-map-file-name <string>',
'Sets file name for output source map when `--source-map-mode=separate`'
)
.option(
'--source-map-mode <string>',
'Specify source map output mode. ' +
`Values: ${CLIUtils.stringifyOptionAvailableValues(SourceMapMode)}. ` +
`Default: ${SourceMapMode.Separate}`
)
.option(
'--source-map-sources-mode <string>',
'Specify source map sources mode. ' +
`Values: ${CLIUtils.stringifyOptionAvailableValues(SourceMapSourcesMode)}. ` +
`Default: ${SourceMapSourcesMode.SourcesContent}`
)
.option(
'--split-strings <boolean>',
'Splits literal strings into chunks with length of `splitStringsChunkLength` option value',
BooleanSanitizer
)
.option('--split-strings-chunk-length <number>', 'Sets chunk length of `splitStrings` option', parseFloat)
.option(
'--string-array <boolean>',
'Enables gathering of all literal strings into an array and replacing every literal string with an array call',
BooleanSanitizer
)
.option(
'--string-array-calls-transform <boolean>',
'Enables the transformation of calls to the string array',
BooleanSanitizer
)
.option(
'--string-array-calls-transform-threshold <number>',
'The probability that that calls to the string array will be transformed',
parseFloat
)
.option(
'--string-array-encoding <list> (comma separated, without whitespaces)',
'Encodes each string in strings array using base64 or rc4 (this option can slow down your code speed). ' +
`Values: ${CLIUtils.stringifyOptionAvailableValues(StringArrayEncoding)}. ` +
`Default: ${StringArrayEncoding.None}`,
ArraySanitizer
)
.option(
'--string-array-indexes-type <list> (comma separated, without whitespaces)',
'Encodes each string in strings array using base64 or rc4 (this option can slow down your code speed). ' +
`Values: ${CLIUtils.stringifyOptionAvailableValues(StringArrayIndexesType)}. ` +
`Default: ${StringArrayIndexesType.HexadecimalNumber}`,
ArraySanitizer
)
.option(
'--string-array-index-shift <boolean>',
'Enables additional index shift for all string array calls',
BooleanSanitizer
)
.option(
'--string-array-rotate <boolean>',
'Enable rotation of string array values during obfuscation',
BooleanSanitizer
)
.option('--string-array-shuffle <boolean>', 'Randomly shuffles string array items', BooleanSanitizer)
.option(
'--string-array-wrappers-count <number>',
'Sets the count of wrappers for the string array inside each root or function scope',
parseInt
)
.option(
'--string-array-wrappers-chained-calls <boolean>',
'Enables the chained calls between string array wrappers',
BooleanSanitizer
)
.option(
'--string-array-wrappers-parameters-max-count <number>',
'Allows to control the maximum number of string array wrappers parameters',
parseInt
)
.option(
'--string-array-wrappers-type <string>',
'Allows to select a type of the wrappers that are appending by the `--string-array-wrappers-count` option. ' +
`Values: ${CLIUtils.stringifyOptionAvailableValues(StringArrayWrappersType)}. ` +
`Default: ${StringArrayWrappersType.Variable}`
)
.option(
'--string-array-threshold <number>',
'The probability that the literal string will be inserted into stringArray (Default: 0.8, Min: 0, Max: 1)',
parseFloat
)
.option(
'--target <string>',
'Allows to set target environment for obfuscated code. ' +
`Values: ${CLIUtils.stringifyOptionAvailableValues(ObfuscationTarget)}. ` +
`Default: ${ObfuscationTarget.Browser}`
)
.option('--transform-object-keys <boolean>', 'Enables transformation of object keys', BooleanSanitizer)
.option(
'--unicode-escape-sequence <boolean>',
'Allows to enable/disable string conversion to unicode escape sequence',
BooleanSanitizer
)
.option(
'--pro-api-token <string>',
'API token for Pro obfuscation via obfuscator.io (enables VM obfuscation via cloud API)'
)
.option('--pro-api-version <string>', 'Obfuscator version to use with Pro API (e.g., "5.0.0")')
.option(
'--vm-obfuscation <boolean>',
'Enables VM-based bytecode obfuscation for functions',
BooleanSanitizer
)
.option(
'--vm-obfuscation-threshold <number>',
'The probability that VM obfuscation will be applied to a function (Default: 1, Min: 0, Max: 1)',
parseFloat
)
.option(
'--vm-preprocess-identifiers <boolean>',
'Preprocesses identifiers before VM transformation (Default: false)',
BooleanSanitizer
)
.option(
'--vm-dynamic-opcodes <boolean>',
'Dynamically assembles VM dispatcher with shuffled case order and filters unused opcodes based on code analysis',
BooleanSanitizer
)
.option(
'--vm-target-functions <list> (comma separated, without whitespaces)',
'List of specific function names to apply VM obfuscation to (comma separated)',
ArraySanitizer
)
.option(
'--vm-exclude-functions <list> (comma separated, without whitespaces)',
'List of function names to exclude from VM obfuscation (comma separated)',
ArraySanitizer
)
.option(
'--vm-target-functions-mode <string>',
'Controls how functions are selected for VM obfuscation. ' +
`Values: ${CLIUtils.stringifyOptionAvailableValues(VMTargetFunctionsMode)}. ` +
`Default: ${VMTargetFunctionsMode.Root}`
)
.option(
'--vm-wrap-top-level-initializers <boolean>',
'Wraps top-level variable initializers in IIFEs so they can be VM-obfuscated (Default: false)',
BooleanSanitizer
)
.option(
'--vm-opcode-shuffle <boolean>',
'Randomizes the numeric values assigned to each opcode (Default: false)',
BooleanSanitizer
)
.option(
'--vm-bytecode-encoding <boolean>',
'Enables bytecode encryption with per-function keys (Default: false)',
BooleanSanitizer
)
.option(
'--vm-bytecode-array-encoding <boolean>',
'Enables encrypted bytecode array with lazy decryption (Default: false)',
BooleanSanitizer
)
.option('--vm-bytecode-array-encoding-key <string>', 'Custom static key for bytecode array encoding')
.option(
'--vm-bytecode-array-encoding-key-getter <string>',
'Custom key getter function code for bytecode array encoding'
)
.option(
'--vm-instruction-shuffle <boolean>',
'Shuffles instruction order within basic blocks (Default: false)',
BooleanSanitizer
)
.option(
'--vm-jumps-encoding <boolean>',
'Enables jump target encoding to prevent CFG reconstruction (Default: false)',
BooleanSanitizer
)
.option(
'--vm-decoy-opcodes <boolean>',
'Enables insertion of decoy opcodes and dead instructions (Default: false)',
BooleanSanitizer
)
.option(
'--vm-dead-code-injection <boolean>',
'Enables dead code injection with opaque predicates in bytecode (Default: false)',
BooleanSanitizer
)
.option(
'--vm-split-dispatcher <boolean>',
'Splits the VM interpreter into multiple category-based dispatchers (Default: false)',
BooleanSanitizer
)
.option(
'--vm-macro-ops <boolean>',
'Enables macro-op fusion to combine common instruction sequences (Default: false)',
BooleanSanitizer
)
.option(
'--vm-debug-protection <boolean>',
'Enables anti-debugging measures with state corruption (Default: false)',
BooleanSanitizer
)
.option(
'--vm-runtime-opcode-derivation <boolean>',
'Enables runtime opcode derivation from seeds instead of static mappings (Default: false)',
BooleanSanitizer
)
.option(
'--vm-stateful-opcodes <boolean>',
'Enables position-based stateful opcode decoding to prevent pattern matching (Default: false)',
BooleanSanitizer
)
.option(
'--vm-stack-encoding <boolean>',
'Enables stack value encoding to prevent stack inspection (Default: false)',
BooleanSanitizer
)
.option(
'--vm-randomize-keys <boolean>',
'Randomizes bytecode property keys to prevent pattern matching (Default: false)',
BooleanSanitizer
)
.option(
'--vm-indirect-dispatch <boolean>',
'Uses indirect dispatch via handler function table instead of switch statement (Default: false)',
BooleanSanitizer
)
.option(
'--vm-compact-dispatcher <boolean>',
'Uses a single unified dispatcher for both sync and generator execution, reducing code size (Default: false)',
BooleanSanitizer
)
.option(
'--vm-bytecode-format <string>',
'Sets the bytecode storage format. ' +
`Values: ${CLIUtils.stringifyOptionAvailableValues(VMBytecodeFormat)}. ` +
`Default: ${VMBytecodeFormat.Binary}`
)
.option(
'--parse-html <boolean>',
'Enables obfuscation of JavaScript within HTML <script> tags (Default: false)',
BooleanSanitizer
)
.option(
'--strict-mode <boolean | null>',
'Allows to specify how the obfuscator should treat code regarding JavaScript strict mode (Default: null)',
StrictModeSanitizer
)
.parse(this.rawArguments);
}
private configureHelp(): void {
this.commands.on('--help', () => {
console.log(' Examples:\n');
console.log(' %> javascript-obfuscator input_file_name.js --compact true --self-defending false');
console.log(
' %> javascript-obfuscator input_file_name.js --output output_file_name.js --compact true --self-defending false'
);
console.log(' %> javascript-obfuscator input_directory_name --compact true --self-defending false');
console.log('');
});
}
/**
* @param {IFileData[]} sourceCodeData
*/
private async processSourceCodeData(sourceCodeData: IFileData[]): Promise<void> {
for (let index = 0; index < sourceCodeData.length; index++) {
const { filePath, content } = sourceCodeData[index];
const outputCodePath: string = this.obfuscatedCodeFileUtils.getOutputCodePath(filePath);
try {
Logger.log(Logger.colorInfo, LoggingPrefix.CLI, `Obfuscating file: ${filePath}...`);
await this.processSourceCode(content, filePath, outputCodePath, index);
} catch (error) {
Logger.log(Logger.colorInfo, LoggingPrefix.CLI, `Error in file: ${filePath}...`);
throw error;
}
}
}
/**
* @param {string} sourceCode
* @param {string} inputCodePath
* @param {string} outputCodePath
* @param {number | null} sourceCodeIndex
*/
private async processSourceCode(
sourceCode: string,
inputCodePath: string,
outputCodePath: string,
sourceCodeIndex: number | null
): Promise<void> {
const options: TInputOptions = {
...this.inputCLIOptions,
identifierNamesCache: this.identifierNamesCacheFileUtils.readFile(),
inputFileName: path.basename(inputCodePath),
...(sourceCodeIndex !== null && {
identifiersPrefix: Utils.getIdentifiersPrefixForMultipleSources(
this.inputCLIOptions.identifiersPrefix,
sourceCodeIndex
)
})
};
// Use Pro API if token is provided and Pro features are enabled
const proApiToken = this.inputCLIOptions.proApiToken;
if (proApiToken) {
await this.processSourceCodeWithProApi(sourceCode, outputCodePath, options, proApiToken);
return;
}
if (options.sourceMap) {
this.processSourceCodeWithSourceMap(sourceCode, outputCodePath, options);
} else {
this.processSourceCodeWithoutSourceMap(sourceCode, outputCodePath, options);
}
}
/**
* Process source code using Pro API (cloud-based VM obfuscation)
*/
private async processSourceCodeWithProApi(
sourceCode: string,
outputCodePath: string,
options: TInputOptions,
apiToken: string
): Promise<void> {
const proApiVersion = this.inputCLIOptions.proApiVersion;
const client = new ProApiClient({
apiToken,
version: proApiVersion
});
const result: IProObfuscationResult = await client.obfuscate(sourceCode, options, (message: string) => {
Logger.log(Logger.colorInfo, LoggingPrefix.CLI, message);
});
this.obfuscatedCodeFileUtils.writeFile(outputCodePath, result.getObfuscatedCode());
// Write source map if enabled and available
if (options.sourceMap && result.getSourceMap()) {
const outputSourceMapPath: string = this.obfuscatedCodeFileUtils.getOutputSourceMapPath(
outputCodePath,
options.sourceMapFileName ?? ''
);
if (options.sourceMapMode === SourceMapMode.Separate) {
this.obfuscatedCodeFileUtils.writeFile(outputSourceMapPath, result.getSourceMap());
}
}
}
/**
* @param {string} sourceCode
* @param {string} outputCodePath
* @param {TInputOptions} options
*/
private processSourceCodeWithoutSourceMap(
sourceCode: string,
outputCodePath: string,
options: TInputOptions
): void {
const obfuscationResult: IObfuscationResult = JavaScriptObfuscator.obfuscate(sourceCode, options);
this.obfuscatedCodeFileUtils.writeFile(outputCodePath, obfuscationResult.getObfuscatedCode());
this.identifierNamesCacheFileUtils.writeFile(obfuscationResult.getIdentifierNamesCache());
}
/**
* @param {string} sourceCode
* @param {string} outputCodePath
* @param {TInputOptions} options
*/
private processSourceCodeWithSourceMap(sourceCode: string, outputCodePath: string, options: TInputOptions): void {
const outputSourceMapPath: string = this.obfuscatedCodeFileUtils.getOutputSourceMapPath(
outputCodePath,
options.sourceMapFileName ?? ''
);
options = {
...options,
sourceMapFileName: path.basename(outputSourceMapPath)
};
const obfuscationResult: IObfuscationResult = JavaScriptObfuscator.obfuscate(sourceCode, options);
this.obfuscatedCodeFileUtils.writeFile(outputCodePath, obfuscationResult.getObfuscatedCode());
this.identifierNamesCacheFileUtils.writeFile(obfuscationResult.getIdentifierNamesCache());
if (options.sourceMapMode === SourceMapMode.Separate && obfuscationResult.getSourceMap()) {
this.obfuscatedCodeFileUtils.writeFile(outputSourceMapPath, obfuscationResult.getSourceMap());
}
}
}