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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 { IObfuscatedCode } from '../interfaces/source-code/IObfuscatedCode';
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 { SourceMapMode } from '../enums/source-map/SourceMapMode';
import { StringArrayEncoding } from '../enums/node-transformers/string-array-transformers/StringArrayEncoding';
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 { JavaScriptObfuscator } from '../JavaScriptObfuscatorFacade';
import { Logger } from '../logger/Logger';
import { ObfuscatedCodeWriter } from './utils/ObfuscatedCodeWriter';
import { SourceCodeReader } from './utils/SourceCodeReader';
import { Utils } from '../utils/Utils';
import { StringArrayIndexesType } from '../enums/node-transformers/string-array-transformers/StringArrayIndexesType';
export class JavaScriptObfuscatorCLI implements IInitializable {
/**
* @type {string[]}
*/
public static readonly availableInputExtensions: string[] = [
'.js'
];
/**
* @type {BufferEncoding}
*/
public static readonly encoding: BufferEncoding = 'utf8';
/**
* @type {string}
*/
public static readonly obfuscatedFilePrefix: string = '-obfuscated';
/**
* @type {commander.CommanderStatic}
*/
@initializable()
private commands!: commander.CommanderStatic;
/**
* @type {TInputCLIOptions}
*/
@initializable()
private inputCLIOptions!: TInputCLIOptions;
/**
* @type {string}
*/
@initializable()
private inputPath!: string;
/**
* @type {SourceCodeReader}
*/
@initializable()
private sourceCodeReader!: SourceCodeReader;
/**
* @type {ObfuscatedCodeWriter}
*/
@initializable()
private obfuscatedCodeWriter!: ObfuscatedCodeWriter;
/**
* @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.inputPath = path.normalize(this.arguments[0] || '');
this.commands = <commander.CommanderStatic>(new commander.Command());
this.configureCommands();
this.configureHelp();
this.inputCLIOptions = JavaScriptObfuscatorCLI.buildOptions(this.commands.opts());
this.sourceCodeReader = new SourceCodeReader(
this.inputPath,
this.inputCLIOptions
);
this.obfuscatedCodeWriter = new ObfuscatedCodeWriter(
this.inputPath,
this.inputCLIOptions
);
}
public run (): void {
const canShowHelp: boolean = !this.arguments.length || this.arguments.includes('--help');
if (canShowHelp) {
this.commands.outputHelp();
return;
}
const sourceCodeData: IFileData[] = this.sourceCodeReader.readSourceCode();
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 <boolean>',
'Disable browser Debug panel even after page was loaded (can cause DevTools enabled browser freeze)',
BooleanSanitizer
)
.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(
'--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-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-require-imports <boolean>', 'Prevents obfuscation of `require` 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 WILL break your code',
BooleanSanitizer
)
.option(
'--rotate-string-array <boolean>', 'Enable rotation of string array values during obfuscation',
BooleanSanitizer
)
.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(
'--shuffle-string-array <boolean>', 'Randomly shuffles string array items',
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(
'--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>',
'Disables gathering of all literal strings into an array and replacing every literal string with an array call',
BooleanSanitizer
)
.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-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
)
.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 processSourceCodeData (sourceCodeData: IFileData[]): void {
sourceCodeData.forEach(({ filePath, content }: IFileData, index: number) => {
const outputCodePath: string = this.obfuscatedCodeWriter.getOutputCodePath(filePath);
try {
Logger.log(
Logger.colorInfo,
LoggingPrefix.CLI,
`Obfuscating file: ${filePath}...`
);
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 processSourceCode (
sourceCode: string,
inputCodePath: string,
outputCodePath: string,
sourceCodeIndex: number | null
): void {
const options: TInputOptions = {
...this.inputCLIOptions,
inputFileName: path.basename(inputCodePath),
...sourceCodeIndex !== null && {
identifiersPrefix: Utils.getIdentifiersPrefixForMultipleSources(
this.inputCLIOptions.identifiersPrefix,
sourceCodeIndex
)
}
};
if (options.sourceMap) {
this.processSourceCodeWithSourceMap(sourceCode, outputCodePath, options);
} else {
this.processSourceCodeWithoutSourceMap(sourceCode, outputCodePath, options);
}
}
/**
* @param {string} sourceCode
* @param {string} outputCodePath
* @param {TInputOptions} options
*/
private processSourceCodeWithoutSourceMap (
sourceCode: string,
outputCodePath: string,
options: TInputOptions
): void {
const obfuscatedCode: string = JavaScriptObfuscator.obfuscate(sourceCode, options).getObfuscatedCode();
this.obfuscatedCodeWriter.writeFile(outputCodePath, obfuscatedCode);
}
/**
* @param {string} sourceCode
* @param {string} outputCodePath
* @param {TInputOptions} options
*/
private processSourceCodeWithSourceMap (
sourceCode: string,
outputCodePath: string,
options: TInputOptions
): void {
const outputSourceMapPath: string = this.obfuscatedCodeWriter.getOutputSourceMapPath(
outputCodePath,
options.sourceMapFileName ?? ''
);
options = {
...options,
sourceMapFileName: path.basename(outputSourceMapPath)
};
const obfuscatedCode: IObfuscatedCode = JavaScriptObfuscator.obfuscate(sourceCode, options);
this.obfuscatedCodeWriter.writeFile(outputCodePath, obfuscatedCode.getObfuscatedCode());
if (options.sourceMapMode === SourceMapMode.Separate && obfuscatedCode.getSourceMap()) {
this.obfuscatedCodeWriter.writeFile(outputSourceMapPath, obfuscatedCode.getSourceMap());
}
}
}