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SourceCodeReader.ts
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192 lines (162 loc) · 5.6 KB
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import * as fs from 'fs';
import * as path from 'path';
import multimatch from 'multimatch';
import { TInputCLIOptions } from '../../types/options/TInputCLIOptions';
import { IFileData } from '../../interfaces/cli/IFileData';
import { LoggingPrefix } from '../../enums/logger/LoggingPrefix';
import { JavaScriptObfuscatorCLI } from '../JavaScriptObfuscatorCLI';
import { Logger } from '../../logger/Logger';
export class SourceCodeReader {
/**
* @type {string[]}
*/
public static readonly availableInputExtensions: string[] = [
'.js'
];
/**
* @type {string}
*/
private readonly inputPath: string;
/**
* @type {TInputCLIOptions}
*/
private readonly options: TInputCLIOptions;
/**
* @param {string} inputPath
* @param {TInputCLIOptions} options
*/
public constructor (
inputPath: string,
options: TInputCLIOptions
) {
this.inputPath = inputPath;
this.options = options;
}
/**
* @param {string} filePath
* @param {string[]} excludePatterns
* @returns {boolean}
*/
private static isExcludedPath (filePath: string, excludePatterns: string[] = []): boolean {
if (!excludePatterns.length) {
return false;
}
const fileName: string = path.basename(filePath);
const isExcludedFilePathByGlobPattern: boolean = !!multimatch([filePath], excludePatterns).length;
const isExcludedFilePathByInclusion: boolean = excludePatterns.some((excludePattern: string) =>
filePath.includes(excludePattern) || fileName.includes(excludePattern)
);
return isExcludedFilePathByInclusion || isExcludedFilePathByGlobPattern;
}
/**
* @param {string} filePath
* @returns {boolean}
*/
private static isDirectoryPath (filePath: string): boolean {
try {
return fs.statSync(filePath).isDirectory();
} catch {
return false;
}
}
/**
* @param {string} filePath
* @returns {boolean}
*/
private static isFilePath (filePath: string): boolean {
try {
return fs.statSync(filePath).isFile();
} catch {
return false;
}
}
/**
* @param {string} directoryPath
* @param {string[]} excludePatterns
* @returns {boolean}
*/
private static isValidDirectory (directoryPath: string, excludePatterns: string[] = []): boolean {
return !SourceCodeReader.isExcludedPath(directoryPath, excludePatterns);
}
/**
* @param {string} filePath
* @param {string[]} excludePatterns
* @returns {boolean}
*/
private static isValidFile (filePath: string, excludePatterns: string[] = []): boolean {
return SourceCodeReader.availableInputExtensions.includes(path.extname(filePath))
&& !filePath.includes(JavaScriptObfuscatorCLI.obfuscatedFilePrefix)
&& !SourceCodeReader.isExcludedPath(filePath, excludePatterns);
}
/**
* @param {string} filePath
*/
private static logFilePath (filePath: string): void {
const normalizedFilePath: string = path.normalize(filePath);
Logger.log(
Logger.colorInfo,
LoggingPrefix.CLI,
`Obfuscating file: ${normalizedFilePath}...`
);
}
/**
* @param {string} filePath
* @returns {string}
*/
private static readFile (filePath: string): IFileData {
SourceCodeReader.logFilePath(filePath);
return {
filePath,
content: fs.readFileSync(filePath, JavaScriptObfuscatorCLI.encoding)
};
}
/**
* @returns {IFileData[]}
*/
public readSourceCode (): IFileData[] {
if (
SourceCodeReader.isFilePath(this.inputPath)
&& SourceCodeReader.isValidFile(this.inputPath, this.options.exclude)
) {
return [SourceCodeReader.readFile(this.inputPath)];
}
if (
SourceCodeReader.isDirectoryPath(this.inputPath)
&& SourceCodeReader.isValidDirectory(this.inputPath, this.options.exclude)
) {
return this.readDirectoryRecursive(this.inputPath);
}
const availableFilePaths: string = SourceCodeReader
.availableInputExtensions
.map((extension: string) => `\`${extension}\``)
.join(', ');
throw new ReferenceError(`Given input path must be a valid ${availableFilePaths} file or directory path`);
}
/**
* @param {string} directoryPath
* @param {IFileData[]} filesData
* @returns {IFileData[]}
*/
private readDirectoryRecursive (directoryPath: string, filesData: IFileData[] = []): IFileData[] {
fs.readdirSync(directoryPath, JavaScriptObfuscatorCLI.encoding)
.forEach((fileName: string) => {
const filePath: string = `${directoryPath}/${fileName}`;
if (
SourceCodeReader.isDirectoryPath(filePath)
&& SourceCodeReader.isValidDirectory(filePath, this.options.exclude)
) {
filesData.push(...this.readDirectoryRecursive(filePath));
return;
}
if (
SourceCodeReader.isFilePath(filePath)
&& SourceCodeReader.isValidFile(filePath, this.options.exclude)
) {
const fileData: IFileData = SourceCodeReader.readFile(filePath);
filesData.push(fileData);
return;
}
});
return filesData;
}
}