first commit

2025-10-10 18:00:07 -04:00
commit 06b59a3a99
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+// Mod: npm
+import console from 'console-wrapper';
+import fse from "fs-extra";
+import path from 'path';
+import sanitize from 'sanitize-filename';
+import Unrar from 'node-unrar-js';
+import {is, not, any} from '@honeo/check';
+// Local
+import list from './list.mjs';
+
+// Var
+const obj_defaultOp = {
+	filter: null,
+	overwrite: false,
+	sanitize: true
+}
+
+
+/*
+	コンテンツを指定して展開する
+
+		引数
+			1: string
+				入力する.rar書庫のパス。
+			2: string
+				出力するディレクトリのパス。
+		返り値
+			promise
+				出力先ディレクトリのパス文字列を引数に解決する。
+*/
+async function unrar(input, _output, _options={}){
+	console.group('unrar()');
+	console.log(_output);
+	console.log(_options);
+
+	// validation
+	if( is.false(
+		is.str(input),
+		is.arrbuf(input)
+	) ){
+		throw new TypeError(`Invalid arguments 1: not string of arraybuffer`);
+	}
+	if( not.str(_output) ){
+		throw new TypeError(`Invalid arguments 2: not string`);
+	}
+	if( not.obj(_options) ){
+		throw new TypeError(`Invalid arguments 3: not object`);
+	}
+
+	// var
+	const output = path.resolve(_output); 	// 出力先Dirのフルパス化
+	const options = {...obj_defaultOp, ..._options}
+	const arrbuf = await (async function(){
+		if( is.str(input) ){
+			console.log('input: path');
+			return Uint8Array.from(
+				await fse.readFile(input)
+			).buffer;
+		}else{
+			console.log('input: arraybuffer');
+			return input;
+		}
+	}());
+	const isFilter = is.func(options.filter);
+
+	const extractor = await Unrar.createExtractorFromData({
+		data: arrbuf,
+		password: options.password
+	});
+	const {arcHeader, files} = extractor.extract({});
+
+	let count = 0;
+	for(let {fileHeader, extraction} of files){
+		const isDir = fileHeader.flags.directory;
+		console.log(++count, `${isDir?'directory':'file'}: ${fileHeader.name}`);
+		// 正規化
+		if( options.sanitize ){
+			const {dir, base} = path.parse(fileHeader.name);
+			const base_sanitized = sanitize(base);
+			fileHeader.name = path.normalize(path.join(
+				dir,
+				base_sanitized
+			));
+		}
+		const str_outputContentFullpath = path.join(output, fileHeader.name);
+
+		// options.filter
+		if( isFilter ){
+			const type = isDir ?
+				'directory': 'file';
+			const str_contentPath = fileHeader.name;
+			const isSkip = options.filter({
+				type,
+				path: str_contentPath,
+				size: fileHeader.packSize
+			})===false;
+			console.log('options.filster:', isSkip);
+			if( isSkip ){
+				continue;
+			}
+		}else{
+			console.log('options.filter: not function');
+		}
+
+		// dirなら作成
+		if( isDir ){
+			console.log(`ensure: ${str_outputContentFullpath}`);
+			await fse.ensureDir(str_outputContentFullpath);
+		}else{
+		// ファイルなら存在確認、あれば上書き許可を確認
+			const isAlreadyExists = await fse.existsSync(str_outputContentFullpath);
+			if( !options.overwrite && isAlreadyExists ){
+				console.log(`skip: ${str_outputContentFullpath}`);
+				continue;
+			}else if( isAlreadyExists && options.overwrite ){
+				console.log(`overwrite: ${str_outputContentFullpath}`);
+			}else{
+				console.log(`write: ${str_outputContentFullpath}`);
+			}
+			await fse.outputFile(str_outputContentFullpath, extraction);
+		}
+	}
+
+	console.log(`result: ${output}`);
+	console.groupEnd();
+	return output;
+}
+
+
+export default unrar;