2020-1-CloudComputing / D_Team_Khuloud

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Showing 9 changed files with 281 additions and 198 deletions
......@@ -8,37 +8,32 @@ var S3 = require('../modules/s3/s3');
// /file/delete/:name
router.get('/:name', function (req, res) {
var user_id = req.session.user_id;
var file_name = req.params.name;
var user_id = req.query.id;
var curPath = req.query.cur;
var sourceFile = req.params.name;
var targetPath = 'trashcan';
var paths = sourceFile.split('/');
var index = sourceFile.length - (paths[paths.length - 1].length + 1);
var file_name = paths[paths.length - 1];
var location = sourceFile.substring(6 + user_id.length, index);
var sourceFile = curPath.substring(1) + file_name;
var sql1 = 'DELETE FROM files WHERE file_name = (?) AND location=(?) AND user_Id = (?)';
var sql2 = 'INSERT INTO trashcan (trash_name, location, user_Id) VALUES (?, ?, ?)';
connection.query(sql1, [file_name, location, user_id], function (err) {
connection.query(sql1, [file_name, curPath, user_id], function (err) {
if (err) {
console.log('delete db error');
throw err;
res.status(404).send({erorr: 'db delete error'});
}
else {
connection.query(sql2, [file_name, location, user_id], function (err) {
connection.query(sql2, [file_name, '/trashcan'+curPath, user_id], function (err) {
if (err) {
console.log('insert in trashcan db error');
throw err;
res.status(404).send({error: 'db insert error'});
}
else {
// /drive/user_id/sourceFile --> /drive/user_id/trashcan/sourceFile
S3.moveFile(S3.BUCKET_NAME, user_id, sourceFile, targetPath, function (result) {
S3.moveFile2(S3.BUCKET_NAME, user_id, sourceFile, targetPath, function (result) {
if (result) {
console.log("file move to trashcan success");
res.send("Upload Success");
res.satus(200).send("move to trashcan success");
}
})
}
......
......@@ -8,22 +8,25 @@ AWS.config.loadFromPath(__dirname + "/../modules/awsconfig.json");
var S3 = require('../modules/s3/s3');
// /file/download/:name
router.get('/:name', function (req, res) {
var file_name = req.params.name;
var user_id = req.session.user_id;
var sourceFile = file_name;
var tempDownloadDir = __dirname + '/../modules/s3/download/' + user_id + '/' + file_name;
S3.downloadFile(S3.BUCKET_NAME, user_id, sourceFile, function (result, data) {
!fs.existsSync(tempDownloadDir + '/../') && fs.mkdirSync(tempDownloadDir + '/../');
fs.writeFileSync(tempDownloadDir, data);
res.download(tempDownloadDir, function (err) {
fs.unlink(tempDownloadDir, function (err) {
console.log("Download Success");
var file_name = req.params.name; // test.txt
var user_id = req.query.id;
var curPath = req.query.cur; // /folder1/folder2/
var targetFile = (curPath + file_name).substring(1); // folder1/folder2/test.txt
S3.downloadFile2(S3.BUCKET_NAME, user_id, targetFile, function (result, downloadDir) {
if (result){
res.download(downloadDir, function (err) {
fs.unlink(downloadDir, function (err) {
console.log('download success');
});
});
}else{
res.status(404).send({error: 'download error'});
}
});
});
......
......@@ -5,33 +5,43 @@ var AWS = require('aws-sdk');
AWS.config.loadFromPath(__dirname + "/../modules/awsconfig.json");
var S3 = require('../modules/s3/s3');
var fs = require('fs');
// /file
router.get('/', function (req, res) {
var user_id = req.session.user_id;
var user_id = req.query.id;
var curPath = req.query.cur; // /folder1/folder2/
var sql = 'SELECT * FROM files WHERE user_id = (?) ORDER BY date DESC';
connection.query(sql, user_id, function (err, result) {
if (result.length == 0){
res.send({error: 'Exist Nothing'});
var sql = 'SELECT * FROM files WHERE user_id=(?) AND location=(?) ORDER BY date DESC';
connection.query(sql, [user_id, curPath], function (err, result) {
if (err){
res.send({error: 'select error'});
}else{
res.status(200).send({files: result});
}
})
});
// /file/:name
router.get('/:name', function (req, res) {
var file_name = req.params.name;
var user_id = req.session.user_id;
var curPath = req.query.cur; // /folder1/folder2/
var user_id = req.query.id;
var s3 = new AWS.S3();
var targetFile = curPath.substring(1) + file_name; // folder1/folder2/test.txt
var extension = targetFile.split('.')[1].toLowerCase();
var sourceFile = 'drive/' + user_id + '/' + file_name;
var params = { Bucket: S3.BUCKET_NAME, Key: sourceFile };
var stream = s3.getObject(params).createReadStream();
stream.pipe(res, function (err) {
if (err) {
throw err;
S3.downloadFile3(S3.BUCKET_NAME, user_id, targetFile, function(result, downloadDir){
if (result){
if (extension == 'jpg' || extension == 'jpeg' || extension == 'png') {
res.status(200).send({ type: 'image', src: downloadDir})
}else{
res.status(200).send({type: 'text', src: downloadDir})
}
}
})
});
......
......@@ -11,80 +11,79 @@ var S3 = require('../modules/s3/s3');
// /file/upload
router.post('/', function (req, res) {
var user_id = req.session.user_id;
var form = new formidable.IncomingForm();
form.multiples = true;
form.parse(req, function (err, fields, files) {
console.log(files);
/* form-data로 받아야 함 */
var user_id = fields.user_id;
var curPath = fields.cur // /folder1/folder2/
console.log(user_id);
console.log(curPath);
var sourceFiles = [];
var errFiles = [];
var targetPath = '';
var targetPath; // 'folder1/folder2'
var bodies = [];
var errMessage = 'upload error';
if (curPath == '/') {
targetPath = '';
} else {
targetPath = curPath.substring(1, curPath.length-1);
}
var form = new formidable.IncomingForm();
form.multiples = true;
form.parse(req, function (err, fields, files) {
if(!files.file[0]){
if(!files.file[0]){ // 파일 하나일 때
var checkFileName = files.file.name;
checkFileName = checkFileName.split('(').join(',').split(')').join(',').split(',');
if (checkFileName.length > 1) {
errFiles.push(files.file.name);
errMessage = 'check your file name(\'(\', \')\' x!)'
}else{
sourceFiles.push(files.file.name);
bodies.push(files.file.path);
}
}else{
for (var file of files.file) {
for (var file of files.file) { // 파일 여러개일 때
var checkFileName = file.name;
checkFileName = checkFileName.split('(').join(',').split(')').join(',').split(',');
if (checkFileName.length > 1){
errFiles.push(file.name);
} else {
sourceFiles.push(file.name);
bodies.push(file.path);
}
}
}
S3.uploadFiles(0, errFiles, S3.BUCKET_NAME, user_id, sourceFiles, targetPath, bodies, function (result, errFiles) {
var newSourceFiles = [];
if (!result) { // 에러 파일이 있는 경우
var noErrSourceFiles = [];
for (var sourceFile of sourceFiles) {
if (!(sourceFile in errFiles)) {
newSourceFiles.push(sourceFile);
}
noErrSourceFiles.push(sourceFile);
}
}
for (var sourceFile of sourceFiles) {
for (var sourceFile of noErrSourceFiles) {
var sql = 'INSERT INTO files (file_name, user_id, location) VALUES (?, ?, ?)';
connection.query(sql, [file_name, user_id, targetPath], function (err, result) {
connection.query(sql, [sourceFile, user_id, curPath], function (err, result) {
if (err) {
console.log('insert file {', sourceFile, '} in db failed');
console.log('insert error');
res.send({error: 'insert error'});
}
})
}
res.send({Errfiles: errFiles});
})
})
})
/*
// /file/upload
router.post('/', function (req, res) {
//var user_id = req.session.user_id;
var user_id = 'shlee';
var form = new formidable.IncomingForm();
form.parse(req, function (err, fields, files) {
var file_name = files.file.name;
var sourceFile = file_name;
var targetPath = '';
var sql = 'INSERT INTO files (file_name, user_id) VALUES (?)';
connection.query(sql, [[file_name, user_id]], function (err) {
if (err) {
console.log("Upload db error");
throw err;
} else {
S3.uploadFile(S3.BUCKET_NAME, user_id, sourceFile, targetPath, files.file.path, function (result) {
if (result) {
console.log("Upload Success");
res.send(result);
if (errFiles.length){
res.send({err: errMessage,
errFiles: errFiles})
} else {
console.log("Upload Fail: Check FIle Duplication");
res.send({message: 'Upload Success',
finalFiles: sourceFiles});
}
})
}
});
})
});
*/
})
module.exports = router;
\ No newline at end of file
......
......@@ -29,17 +29,26 @@ router.get('/show', function(req, res, next) {
parentPath += '/';
}
}
folders = {}
let checkfolder = 'SELECT * FROM folders WHERE location = ? AND user_id = ?;';
connection.query(checkfolder, [curPath, user_id], function(err, rows, fields) {
if (err) {
console.log('select error');
res.status(404).send()
} else {
if (rows.length != 0) {
res.status(200).send({
folders: rows,
cur: curPath,
parentPath: parentPath
})
} else {
res.status(200).send({
folders: rows,
cur: curPath,
parentPath: parentPath
})
}
}
});
});
......@@ -61,9 +70,6 @@ router.post('/makefolder', function(req, res, next) {
let checksql = 'SELECT * FROM folders WHERE location = ? AND folder_name = ?;';
console.log(req.body)
connection.query(checksql, [cur, folder_name], function(err, rows, fields) {
if (err) {
} else {
if (rows.length == 0) {
s3.putObject(params, function(err, data) {
if (err) {
......@@ -71,6 +77,8 @@ router.post('/makefolder', function(req, res, next) {
throw err;
} else {
console.log(data);
}
});
let sql = 'INSERT INTO folders (folder_name,location,user_id,created) values (?,?,?,?);';
let values = [folder_name, cur, user_id, date];
connection.query(sql, values, function(err, result, field) {
......@@ -78,175 +86,172 @@ router.post('/makefolder', function(req, res, next) {
console.log('insert error');
throw err;
} else {
folders = {}
let checkfolder = 'SELECT * FROM folders WHERE location = ? AND user_id = ?;';
connection.query(checkfolder, [cur, user_id], function(err, rows, fields) {
console.log(rows);
if (rows.length != 0) {
res.status(200).send({
folders: rows
})
});
} else {
res.send({ error: "Does not exist" });
}
});
}
});
} else {
res.status(404).send({ error: "same name error" });
}
}
});
});
router.post('/delfolder', function(req, res, next) {
user_id = req.body.id;
let cur = req.body.cur;
curPath = user_id + cur;
user_id = req.body.user_id;
curPath = user_id + req.body.cur;
let folder_name = req.body.folder_name;
let params = {
Bucket: BUCKET_NAME,
Key: curPath + folder_name + '/'
Bucket: BUCKET_NAME + curPath,
Key: folder_name + '/'
};
let checksql = 'SELECT * FROM folders WHERE location = ? AND folder_name = ? AND user_id = ?;';
let values = [cur, folder_name, user_id];
let checksql = 'SELECT * FROM folders WHERE location = ? AND folder_name = ?;';
let values = [curPath, folder_name];
connection.query(checksql, values, function(err, rows, fields) {
if (err) {
res.status(404).send({ error: "error" });
} else {
if (rows.length != 0) {
s3.deleteObject(params, function(err, data) {
if (err) {
console.log('s3 error');
//throw err;
} else {
console.log(data);
let sql = 'DELETE FROM folders WHERE location = ? AND folder_name = ? AND user_id = ?;';
let sql = 'DELETE FROM folders WHERE location = ? AND folder_name = ?;';
connection.query(sql, values, function(err, result, field) {
if (err) {
//throw err;
} else {
console.log(cur);
console.log(user_id);
folders = {}
let checkfolder = 'SELECT * FROM folders WHERE location = ? AND user_id = ?;';
connection.query(checkfolder, [cur, user_id], function(err, rows, fields) {
if (rows.length != 0) {
res.status(200).send({
folders: rows
folders: rows,
cur: curPath
})
} else {
res.send({ error: "Does not exist" });
}
});
}
});
}
});
} else {
console.log(req.body);
res.status(304).send({ error: "Does not exist" });
}
res.send({ error: "Does not exist" });
}
});
});
router.post('/move', function(req, res, next) {
console.log(req.body);
user_id = req.body.id;
let cur = req.body.cur;
curPath = user_id + cur;
let name = req.body.folder_name;
let newPath = user_id + req.body.newPath;
user_id = req.body.user_id;
curPath = user_id + req.body.cur;
let name = req.body.mfile;
let newPath = req.body.newPath;
let checkfolder = 'SELECT * FROM folders WHERE location = ? AND folder_name = ?;';
if (req.body.isfolder) {
let checkfolder = 'SELECT * FROM folders WHERE location = ? AND folder_name = ? AND user_id = ?;';
connection.query(checkfolder, [cur, name, user_id], function(err1, rows, fields) {
console.log(rows);
connection.query(checkfolder, [curPath, name], function(err1, rows, fields) {
if (rows.length != 0) {
let copy_params = {
Bucket: BUCKET_NAME,
CopySource: BUCKET_NAME + '/' + curPath + name + '/',
Key: newPath + name + '/'
Bucket: BUCKET_NAME + curPath,
CopySource: BUCKET_NAME + curPath + file + '/',
Key: newPath + file + '/'
};
let del_params = {
Bucket: BUCKET_NAME,
Key: curPath + name + '/'
Bucket: BUCKET_NAME + curPath,
Key: file + '/'
};
s3.copyObject(copy_params, function(err, data) {
if (err) {
console.log(err, data);
console.log("copy error");
res.status(304).send({ error: "copy error" });
} else {
});
s3.deleteObject(del_params, function(err, data) {
if (err) {
console.log(err, data);
console.log("delete error");
res.status(304).send({ error: "delete error" });
} else {
let values = [req.body.newPath, cur, name, user_id];
let updatesql = 'UPDATE folders SET location = ? WHERE location = ? AND folder_name = ? AND user_id = ?;';
});
let values = [newPath, curPath, name];
let updatesql = 'UPDATE folders SET location = ? WHERE location = ? AND folder_name = ?;';
connection.query(updatesql, values, function(err3, result, field) {
if (err3) {
console.log("updatesql error");
res.status(304).send({ error: "updatesql error" });
throw err;
} else {
let resultsql = 'SELECT * FROM folders WHERE location = ? AND user_id = ?;';
connection.query(resultsql, [cur, user_id], function(err, rows, fields) {
folders = {}
connection.query(checkfolder, [cur, user_id], function(err, rows, fields) {
if (rows.length != 0) {
res.status(200).send({
folders: rows
});
});
}
});
folders: rows,
cur: curPath
})
} else {
res.send({ error: "Does not exist" });
}
});
}
});
} else {
console.log("Does not exist");
res.status(304).send({ error: "Does not exist" });
res.send({ error: "Does not exist" });
}
});
} else {
let checkfile = 'SELECT * FROM files WHERE location = ? AND file_name = ? AND user_id = ?';
connection.query(checkfile, [curPath, name, user_id], function(err1, rows, fields) {
let checkfile = 'SELECT * FROM files WHERE location = ? AND file_name = ?';
connection.query(checkfile, [curPath, name], function(err1, rows, fields) {
if (rows.length != 0) {
let copy_params = {
Bucket: BUCKET_NAME,
CopySource: BUCKET_NAME + '/' + curPath + file,
Bucket: BUCKET_NAME + curPath,
CopySource: BUCKET_NAME + curPath + file,
Key: newPath + file
};
let del_params = {
Bucket: BUCKET_NAME,
Key: curPath + file
Bucket: BUCKET_NAME + curPath,
Key: file
};
s3.copyObject(copy_params, function(err, data) {
if (err) {
console.log(err, data);
res.status(304).send({ error: "copy error" });
} else {
});
s3.deleteObject(del_params, function(err, data) {
if (err) {
console.log(err, data);
res.status(304).send({ error: "delete error" });
} else {
let values = [newPath, cur, name, user_id];
let updatesql = 'UPDATE files SET location = ? WHERE location = ? AND file_name = ? AND user_id = ?;';
});
let values = [newPath, curPath, name];
let updatesql = 'UPDATE files SET location = ? WHERE location = ? AND file_name = ?;';
connection.query(updatesql, values, function(err3, result, field) {
if (err3) {
res.status(304).send({ error: "updatesql error" });
throw err;
} else {
let resultsql = 'SELECT * FROM folders WHERE location = ? AND user_id = ?;';
connection.query(resultsql, [cur, user_id], function(err, rows, fields) {
folders = {}
connection.query(checkfolder, [cur, user_id], function(err, rows, fields) {
if (rows.length != 0) {
res.status(200).send({
folders: rows
});
});
}
});
folders: rows,
cur: curPath
})
} else {
res.send({ error: "Does not exist" });
}
});
}
});
} else {
res.status(304).send({ error: "Does not exist" });
res.send({ error: "Does not exist" });
}
});
......
{
"accessKeyId": "ASIAZQ5XTMMFRBJO2LG5",
"secretAccessKey": "ltsYvzKAoQ5UnNWEk13Zf8n4wJdkQkemsJ7GdsbS",
"sessionToken": "FwoGZXIvYXdzEI///////////wEaDLleFCvWDhdhFpXCvCLDAX/Hka6vXTZKxdyEBUh7ZSxPYLH184u1Tpo2qWHYFziUVKWJSCm5wqPNv0QWoAp8sL5NB0W5kty8hoeKv16SYB9Z+yzT1qtfuKTmrro2jGSo7AnxDSBla6UQHAv82yVetiGwu+IKhm6tHUvdNSlkIV0Qi9rNrDc9eynhFN/emFI/6NsocbQ47mmW6BZx0Z4/hHKW9TL6Uec/E87Z+oxVRFsVOGyNtow980bQgZFYJMbh3AN6poTlofP1q/qn2nUWwAdsDCjfhr/2BTItlcDfO5PEH5Gwffzv69JMTVBIemfIpS/Ybx6F6i7GbI2fZKGtGfRSecobbj4m",
"accessKeyId": "ASIAZQ5XTMMFRYJNKBIQ",
"secretAccessKey": "NNsqT/NamEdilVYzp/dS8ys2MMlEDEmyreZb6VLJ",
"sessionToken": "FwoGZXIvYXdzELP//////////wEaDJMOjkb8lIC9vGm9uCLDAWLA9QiZ4tlf+5oJaJE3MQeD6PKFGE1xTVNBTIKOY6ROuMC+sHfKVONokm+comkRD5z2Mi4l7XxSQDmOM3TtcuxwsJWw5aIKKUUUqCQbzqEy2JSAsJxBMUDiUGQnIlYJDCuB+uWWvfgAxUrDz/ReJQeXmpuFOVIymn12jTXy4scLZcz22cpiZj4pr9d05VOkzUyXozIHGEVEHgIV1qdy5sJLMicz4RQi4+bIuE5w4lCYdpk0nzduAHStgyWEN0/VjEbJSCiG48b2BTIt675GjnR/TJwYd8BOnqKzAwQyF4WxMzAgJ2NaCwPcE0ZR2/KVYQoIO1Os/Vk6",
"region": "us-east-1"
}
\ No newline at end of file
......
var mysql = require('mysql');
connection = mysql.createConnection({
host: '1.201.142.243',
user: 'khuloud',
//host: '1.201.142.243',
//user: 'khuloud',
//port: 3306,
//password: 'password1234',
//database: 'khuloud',
//connectionLimit: 30
host: 'localhost',
user: 'root',
port: 3306,
password: 'password1234',
database: 'khuloud',
connectionLimit: 30
password: '1234',
database: 'temp'
});
\ No newline at end of file
......
......@@ -52,6 +52,8 @@ var S3 = {
},
copyFile2: function (bucketName, userId, sourceFile, targetFile, callback) {
// sourceFile => folder1/folder2/test.txt
// targetFile => trashcan/folder1/folder2/test.txt
var copyParams = {
Bucket: bucketName,
CopySource: bucketName + '/drive/' + userId + '/' + sourceFile,
......@@ -72,6 +74,7 @@ var S3 = {
},
deleteFile: function (bucketName, userId, targetFile, callback) {
// targetFile => folder1/folder2/test.txt
var deleteParams = {
Bucket: bucketName,
Key: 'drive/' + userId + '/' + targetFile
......@@ -95,7 +98,7 @@ var S3 = {
Bucket: bucketName,
Key: 'drive/' + userId + '/' + targetFile
};
console.log('drive/' + userId + '/' + targetFile);
s3.getObject(downloadParams, function (err, data) {
if (err) {
console.log("Download File Error", err);
......@@ -103,8 +106,51 @@ var S3 = {
} else {
if (data) {
console.log("Get File Success");
callback(1, data.Body);
callback(true, data.body);
}
}
})
},
// /routes/modules/s3/download에 저장
downloadFile2: function(bucketName, userId, targetFile, callback){
tempDownloadDir = __dirname + '/download/' + userId + '/' + targetFile;
S3.downloadFile(bucketName, userId, targetFile, function(result, data){
if (result) {
makeFolder(tempDownloadDir, function(result){
if (result) {
fs.writeFileSync(tempDownloadDir, data);
callback(true, tempDownloadDir);
}
})
}else{
console.log('Download File Error');
callback(false);
}
})
},
// 최종
downloadFile3: function(bucketName, userId, targetFile, callback){
// targetFile 예1 => test.txt
// targetFile 예2 => folder1/folder2/test.txt
var tempDownloadDir = __dirname + '/download/' + userId + '/' + targetFile;
makeFolder(tempDownloadDir, function(result){
if (result){
var file = fs.createWriteStream(tempDownloadDir);
var params = {
Bucket: bucketName,
Key: 'drive/' + userId + '/' + targetFile
};
try {
s3.getObject(params).createReadStream().pipe(file);
callback(true, tempDownloadDir);
}catch(err){
console.log('no such file');
callback(false);
}
}else{
callback(false);
}
})
},
......@@ -174,6 +220,20 @@ var S3 = {
})
},
// 중복된 파일 버전 만들기(test.txt -> text(1).txt)
makeVersion: function (bucketName, userId, sourceFile, lvNum, callback) {
var sourceFile;
var splited = sourceFile.split('(').join(',').split(')').join(',').split(',');
if (splited.length != 3) {
sourceFile = sourceFile.split('.')[0] + '(' + lvNum.toString() + ').' + sourceFile.split('.')[1];
} else {
sourceFile = sourceFile.split('(')[0] + '(' + lvNum.toString() + ')' + sourceFile.split(')')[1];
}
console.log('makeVersion ', sourceFile);
callback(true, sourceFile);
},
// sourceFile이 단순히 filename과 같은 경우
moveFile: function (bucketName, userId, sourceFile, targetPath, callback) {
S3.copyFile(bucketName, userId, sourceFile, targetPath, function (res) {
......@@ -194,25 +254,10 @@ var S3 = {
})
},
makeVersion: function(bucketName, userId, sourceFile, lvNum, callback){
var sourceFile;
var splited = sourceFile.split('(').join(',').split(')').join(',').split(',');
if (splited.length != 3){
sourceFile = sourceFile.split('.')[0] + '(' + lvNum.toString() + ')' + sourceFile.split('.')[1];
}else{
sourceFile = sourceFile.split('(')[0] + '(' + lvNum.toString() + ')' + sourceFile.split(')')[1];
}
console.log('makeVersion ', sourceFile);
callback(true, sourceFile);
},
// sourceFile에 임의의 경로가 포함된 경우
moveFile2: function (bucketName, userId, sourceFile, targetPath, callback) {
var paths = sourceFile.split('/');
var filename = paths[paths.length - 1];
console.log('paths = ' + paths);
console.log('filename = ' + filename);
var targetFile = targetPath + filename;
// sourceFile => folder1/folder2/test.txt
var targetFile = targetPath + '/' + sourceFile;
S3.copyFile2(bucketName, userId, sourceFile, targetFile, function (res) {
if (!res) {
......@@ -235,10 +280,11 @@ var S3 = {
uploadFile: function (bucketName, userId, sourceFile, targetPath, body, callback) {
var pathbody = fs.createReadStream(body);
if (targetPath != '') {
if (targetPath!='' && targetPath[targetPath.length-1]!='/') {
targetPath = targetPath + '/';
}
var targetFile = targetPath + sourceFile;
console.log('targetFile', targetFile);
var uploadParams = {
Bucket: bucketName,
......@@ -299,4 +345,23 @@ var S3 = {
},
}
var makeFolder = function(dir, callback){
var paths = dir.substring(__dirname.length+1); // download/userId/folder1/folder2/test.txt
paths = paths.split('/');
var folders = __dirname;
for(var i=0; i<paths.length-1; i++){
folders += '/'+paths[i];
if(!fs.existsSync(folders)){
fs.mkdirSync(folders)
}
}
if (fs.existsSync(folders)){
callback(true);
}else{
callback(false);
}
}
module.exports = S3;
\ No newline at end of file
......