New SCP module for NodeJS
A lightweight, fast and secure module to perform SCP commands for NodeJS based on SSH2
What's new
All functionalities are written using Promise. That means you can use it with Promise
or Async/Await
(No more callback hell, Yeah :) )
And other new features:
- Scp a directory from local to remote server and from remote to local
- Perform commands on remote server:
mkdir
, stat
, check if path exists
Table of Contents
Installation
npm install --save node-scp
# or
yarn add node-scp
Guide
Scp file from local to remote server
Using Promise
const { Client } = require('node-scp')
import { Client } from 'node-scp'
Client({
host: 'your host',
port: 22,
username: 'username',
password: 'password',
}).then(client => {
client.uploadFile(
'./test.txt',
'/workspace/test.txt',
)
.then(response => {
client.close()
})
.catch(error => {})
}).catch(e => console.log(e))
Using async/await
:
const { Client } = require('node-scp')
import { Client } from 'node-scp'
async function test() {
try {
const client = await Client({
host: 'your host',
port: 22,
username: 'username',
password: 'password',
})
await client.uploadFile(
'./test.txt',
'/workspace/test.txt',
)
await client.uploadFile('./test1.txt', '/workspace/test1.txt')
client.close()
} catch (e) {
console.log(e)
}
}
test()
Scp file from remote server to local
Using Promise
const { Client } = require('node-scp')
import { Client } from 'node-scp'
Client({
host: 'your host',
port: 22,
username: 'username',
password: 'password',
}).then(client => {
client.downloadFile(
'/workspace/test.txt',
'./test.txt',
)
.then(response => {
client.close()
})
.catch(error => {})
}).catch(e => console.log(e))
Using async/await
:
const { Client } = require('node-scp')
import { Client } from 'node-scp'
async function test () {
try {
const client = await Client({
host: 'your host',
port: 22,
username: 'username',
password: 'password',
})
await client.downloadFile(
'/workspace/test.txt',
'./test.txt',
)
client.close()
} catch(e) {
console.log(e)
}
}
test()
Scp a directory from local to remote server
Using Promise
const { Client } = require('node-scp')
import { Client } from 'node-scp'
Client({
host: 'your host',
port: 22,
username: 'username',
password: 'password',
}).then(client => {
client.uploadDir('./local/dir', '/server/path')
.then(response => {
client.close()
})
.catch(error => {})
}).catch(e => console.log(e))
Using async/await
:
const { Client } = require('node-scp')
import { Client } from 'node-scp'
async funtion test () {
try {
const client = await Client({
host: 'your host',
port: 22,
username: 'username',
password: 'password',
})
await client.uploadDir('./local/dir', '/server/path')
client.close()
} catch (e) {
console.log(e)
}
}
test()
Scp a directory from remote server to local
Using Promise
const { Client } = require('node-scp')
import { Client } from 'node-scp'
Client({
host: 'your host',
port: 22,
username: 'username',
password: 'password',
}).then(client => {
client.downloadDir('/server/path', 'local/path')
.then(response => {
client.close()
})
.catch(error => {})
}).catch(e => console.log(e))
Using async/await
:
const { Client } = require('node-scp')
import { Client } from 'node-scp'
async funtion test () {
try {
const client = await Client({
host: 'your host',
port: 22,
username: 'username',
password: 'password',
})
await client.downloadDir('/server/path', './local/dir')
client.close()
} catch (e) {
console.log(e)
}
}
test()
Create a directory on remote server
Using Promise
const { Client } = require('node-scp')
import { Client } from 'node-scp'
Client({
host: 'your host',
port: 22,
username: 'username',
password: 'password',
}).then(client => {
client.mkdir(
'/server/path',
)
.then(response => {
client.close()
})
.catch(error => {})
}).catch(e => console.log(e))
Using async/await
:
const { Client } = require('node-scp')
import { Client } from 'node-scp'
async function test() {
try {
const client = await Client({
host: 'your host',
port: 22,
username: 'username',
password: 'password',
})
await client.mkdir(
'/server/path',
)
client.close()
} catch (e) {
console.log(e)
}
}
test()
Check if a path exists on remote server
Using Promise
const { Client } = require('node-scp')
import { Client } from 'node-scp'
Client({
host: 'your host',
port: 22,
username: 'username',
password: 'password',
}).then(client => {
const result = client.exists('/server/path')
.then(result => {
console.log(result)
client.close()
})
.catch(error => {})
}).catch(e => console.log(e))
Using async/await
:
const { Client } = require('node-scp')
import { Client } from 'node-scp'
async function test() {
try {
const client = await Client({
host: 'your host',
port: 22,
username: 'username',
password: 'password',
})
const result = await client.exists('/server/path')
console.log(result)
client.close()
} catch (e) {
console.log(e)
}
}
test()
Get stats of a path on remote server
Using Promise
const { Client } = require('node-scp')
import { Client } from 'node-scp'
Client({
host: 'your host',
port: 22,
username: 'username',
password: 'password',
}).then(client => {
client.stat('/server/path')
.then(result => {
console.log(result)
client.close()
})
.catch(error => {})
}).catch(e => console.log(e))
Using async/await
:
const { Client } = require('node-scp')
import { Client } from 'node-scp'
async function test() {
try {
const client = await Client({
host: 'your host',
port: 22,
username: 'username',
password: 'password',
})
const result = await client.stat('/server/path')
console.log(result)
client.close()
} catch (e) {
console.log(e)
}
}
test()
Sets the attributes defined in attributes
for path
Using Promise
const { Client } = require('node-scp')
import { Client } from 'node-scp'
Client({
host: 'your host',
port: 22,
username: 'username',
password: 'password',
}).then(client => {
client.setstat('/server/path', {})
.then(() => {
client.close()
})
.catch(error => {})
}).catch(e => console.log(e))
Using async/await
:
const { Client } = require('node-scp')
import { Client } from 'node-scp'
async function test() {
try {
const client = await Client({
host: 'your host',
port: 22,
username: 'username',
password: 'password',
})
await client.setstat('/server/path', {})
client.close()
} catch (e) {
console.log(e)
}
}
test()
List all files in remote directory
Using Promise
const { Client } = require('node-scp')
import { Client } from 'node-scp'
Client({
host: 'your host',
port: 22,
username: 'username',
password: 'password',
}).then(client => {
client.list('/server/path')
.then(result => {
console.log(result)
client.close()
})
.catch(error => {})
}).catch(e => console.log(e))
Using async/await
:
const { Client } = require('node-scp')
import { Client } from 'node-scp'
async function test() {
try {
const client = await Client({
host: 'your host',
port: 22,
username: 'username',
password: 'password',
})
const result = await client.list('/server/path')
console.log(result)
client.close()
} catch (e) {
console.log(e)
}
}
test()
Convert relative path to absolute path on remote server
Using Promise
const { Client } = require('node-scp')
import { Client } from 'node-scp'
Client({
host: 'your host',
port: 22,
username: 'username',
password: 'password',
}).then(client => {
client.realPath('/server/path')
.then(result => {
console.log(result)
client.close()
})
.catch(error => {})
}).catch(e => console.log(e))
Using async/await
:
const { Client } = require('node-scp')
import { Client } from 'node-scp'
async function test() {
try {
const client = await Client({
host: 'your host',
port: 22,
username: 'username',
password: 'password',
})
const result = await client.realPath('/server/path')
console.log(result)
client.close()
} catch (e) {
console.log(e)
}
}
test()
Remove file in remote server
Using Promise
const { Client } = require('node-scp')
import { Client } from 'node-scp'
Client({
host: 'your host',
port: 22,
username: 'username',
password: 'password',
}).then(client => {
client.unlink('/server/path/myfile.txt')
.then(() => {
client.close()
})
.catch(error => {})
}).catch(e => console.log(e))
Using async/await
:
const { Client } = require('node-scp')
import { Client } from 'node-scp'
async function test() {
try {
const client = await Client({
host: 'your host',
port: 22,
username: 'username',
password: 'password',
})
await client.unlink('/server/path/myfile.txt')
client.close()
} catch (e) {
console.log(e)
}
}
test()
Remove a directory in remote server
Using Promise
const { Client } = require('node-scp')
import { Client } from 'node-scp'
Client({
host: 'your host',
port: 22,
username: 'username',
password: 'password',
}).then(client => {
client.rmdir('/server/path')
.then(() => {
client.close()
})
.catch(error => {})
}).catch(e => console.log(e))
Using async/await
:
const { Client } = require('node-scp')
import { Client } from 'node-scp'
async function test() {
try {
const client = await Client({
host: 'your host',
port: 22,
username: 'username',
password: 'password',
})
await client.rmdir('/server/path')
client.close()
} catch (e) {
console.log(e)
}
}
test()
Clean a directory in remote server
Using Promise
const { Client } = require('node-scp')
import { Client } from 'node-scp'
Client({
host: 'your host',
port: 22,
username: 'username',
password: 'password',
}).then(client => {
client.emptyDir('/server/path')
.then(() => {
client.close()
})
.catch(error => {})
}).catch(e => console.log(e))
Using async/await
:
const { Client } = require('node-scp')
import { Client } from 'node-scp'
async function test() {
try {
const client = await Client({
host: 'your host',
port: 22,
username: 'username',
password: 'password',
})
await client.emptyDir('/server/path')
client.close()
} catch (e) {
console.log(e)
}
}
test()
Write data to a file in remote server
Using Promise
const { Client } = require('node-scp')
import { Client } from 'node-scp'
Client({
host: 'your host',
port: 22,
username: 'username',
password: 'password',
}).then(client => {
client.writeFile('/server/path/test.txt', 'some data', { })
.then(() => {
client.close()
})
.catch(error => {})
}).catch(e => console.log(e))
Using async/await
:
const { Client } = require('node-scp')
import { Client } from 'node-scp'
async function test() {
try {
const client = await Client({
host: 'your host',
port: 22,
username: 'username',
password: 'password',
})
await client.writeFile('/server/path/test.txt', 'some data', { })
client.close()
} catch (e) {
console.log(e)
}
}
test()
Sets the access time and modified time for path
Using Promise
const { Client } = require('node-scp')
import { Client } from 'node-scp'
Client({
host: 'your host',
port: 22,
username: 'username',
password: 'password',
}).then(client => {
client.utimes('/server/path/test.txt', 1663641640819, 1663641640819)
.then(() => {
client.close()
})
.catch(error => {})
}).catch(e => console.log(e))
Using async/await
:
const { Client } = require('node-scp')
import { Client } from 'node-scp'
async function test() {
try {
const client = await Client({
host: 'your host',
port: 22,
username: 'username',
password: 'password',
})
await client.utimes('/server/path/test.txt', 1663641640819, 1663641640819)
client.close()
} catch (e) {
console.log(e)
}
}
test()
Creates a symlink at linkPath
to targetPath
Using Promise
const { Client } = require('node-scp')
import { Client } from 'node-scp'
Client({
host: 'your host',
port: 22,
username: 'username',
password: 'password',
}).then(client => {
client.symlink('/server/path1/test.txt', '/server/path2/test.txt')
.then(() => {
client.close()
})
.catch(error => {})
}).catch(e => console.log(e))
Using async/await
:
const { Client } = require('node-scp')
import { Client } from 'node-scp'
async function test() {
try {
const client = await Client({
host: 'your host',
port: 22,
username: 'username',
password: 'password',
})
await client.symlink('/server/path1/test.txt', '/server/path2/test.txt')
client.close()
} catch (e) {
console.log(e)
}
}
test()
Renames/moves srcPath
to destPath
Using Promise
const { Client } = require('node-scp')
import { Client } from 'node-scp'
Client({
host: 'your host',
port: 22,
username: 'username',
password: 'password',
}).then(client => {
client.rename('/server/path1/test.txt', '/server/path2/test.txt')
.then(() => {
client.close()
})
.catch(error => {})
}).catch(e => console.log(e))
Using async/await
:
const { Client } = require('node-scp')
import { Client } from 'node-scp'
async function test() {
try {
const client = await Client({
host: 'your host',
port: 22,
username: 'username',
password: 'password',
})
await client.rename('/server/path1/test.txt', '/server/path2/test.txt')
client.close()
} catch (e) {
console.log(e)
}
}
test()
Retrieves the target for a symlink at path
Using Promise
const { Client } = require('node-scp')
import { Client } from 'node-scp'
Client({
host: 'your host',
port: 22,
username: 'username',
password: 'password',
}).then(client => {
client.readlink('/server/path1/test.txt')
.then((result) => {
console.log(result)
client.close()
})
.catch(error => {})
}).catch(e => console.log(e))
Using async/await
:
const { Client } = require('node-scp')
import { Client } from 'node-scp'
async function test() {
try {
const client = await Client({
host: 'your host',
port: 22,
username: 'username',
password: 'password',
})
const result = await client.readlink('/server/path1/test.txt')
console.log(result)
client.close()
} catch (e) {
console.log(e)
}
}
test()
Reads a file in memory and returns its contents
Using Promise
const { Client } = require('node-scp')
import { Client } from 'node-scp'
Client({
host: 'your host',
port: 22,
username: 'username',
password: 'password',
}).then(client => {
client.readFile('/server/path1/test.txt')
.then((result) => {
console.log(result)
client.close()
})
.catch(error => {})
}).catch(e => console.log(e))
Using async/await
:
const { Client } = require('node-scp')
import { Client } from 'node-scp'
async function test() {
try {
const client = await Client({
host: 'your host',
port: 22,
username: 'username',
password: 'password',
})
const result = await client.readFile('/server/path1/test.txt')
console.log(result)
client.close()
} catch (e) {
console.log(e)
}
}
test()
Retrieves attributes for path
Using Promise
const { Client } = require('node-scp')
import { Client } from 'node-scp'
Client({
host: 'your host',
port: 22,
username: 'username',
password: 'password',
}).then(client => {
client.lstat('/server/path1/test.txt')
.then((result) => {
console.log(result)
client.close()
})
.catch(error => {})
}).catch(e => console.log(e))
Using async/await
:
const { Client } = require('node-scp')
import { Client } from 'node-scp'
async function test() {
try {
const client = await Client({
host: 'your host',
port: 22,
username: 'username',
password: 'password',
})
const result = await client.lstat('/server/path1/test.txt')
console.log(result)
client.close()
} catch (e) {
console.log(e)
}
}
test()
Appends data to a file
Using Promise
const { Client } = require('node-scp')
import { Client } from 'node-scp'
Client({
host: 'your host',
port: 22,
username: 'username',
password: 'password',
}).then(client => {
client.appendFile('/server/path1/test.txt', 'some data', {})
.then(() => {
client.close()
})
.catch(error => {})
}).catch(e => console.log(e))
Using async/await
:
const { Client } = require('node-scp')
import { Client } from 'node-scp'
async function test() {
try {
const client = await Client({
host: 'your host',
port: 22,
username: 'username',
password: 'password',
})
await client.appendFile('/server/path1/test.txt', 'some data', {})
client.close()
} catch (e) {
console.log(e)
}
}
test()
Sets the mode for path
Using Promise
const { Client } = require('node-scp')
import { Client } from 'node-scp'
Client({
host: 'your host',
port: 22,
username: 'username',
password: 'password',
}).then(client => {
client.chmod('/server/path1/test.txt', '+x')
.then(() => {
client.close()
})
.catch(error => {})
}).catch(e => console.log(e))
Using async/await
:
const { Client } = require('node-scp')
import { Client } from 'node-scp'
async function test() {
try {
const client = await Client({
host: 'your host',
port: 22,
username: 'username',
password: 'password',
})
await client.chmod('/server/path1/test.txt', '+x')
client.close()
} catch (e) {
console.log(e)
}
}
test()
Sets the owner for path
Using Promise
const { Client } = require('node-scp')
import { Client } from 'node-scp'
Client({
host: 'your host',
port: 22,
username: 'username',
password: 'password',
}).then(client => {
client.chown('/server/path1/test.txt', 1000, 1000)
.then(() => {
client.close()
})
.catch(error => {})
}).catch(e => console.log(e))
Using async/await
:
const { Client } = require('node-scp')
import { Client } from 'node-scp'
async function test() {
try {
const client = await Client({
host: 'your host',
port: 22,
username: 'username',
password: 'password',
})
await client.chown('/server/path1/test.txt', 1000, 1000)
client.close()
} catch (e) {
console.log(e)
}
}
test()
Events
You can listen for any event provided by SSH2 during an SSH session by passing events
to Connection options
For example:
try {
const client = await Client({
host: "server_ip",
port: 22,
username: "username",
tryKeyboard: true,
events: {
"keyboard-interactive": (
name,
instructions,
instructionsLang,
prompts,
finish
) => {
finish(['my_password'])
},
},
});
client.close();
} catch (e) {
console.log(e);
}
Connection options
Below are available options you can pass when connecting to server:
-
agent - string - Path to ssh-agent's UNIX socket for ssh-agent-based user authentication. Windows users: set to 'pageant' for authenticating with Pageant or (actual) path to a cygwin "UNIX socket." Default: (none)
-
agentForward - boolean - Set to true
to use OpenSSH agent forwarding (auth-agent@openssh.com
) for the life of the connection. agent
must also be set to use this feature. Default: false
-
algorithms - object - This option allows you to explicitly override the default transport layer algorithms used for the connection. The value for each category must either be an array of valid algorithm names to set an exact list (with the most preferable first) or an object containing append
, prepend
, and/or remove
properties that each contain an array of algorithm names or RegExps to match to adjust default lists for each category. Valid keys:
-
cipher - mixed - Ciphers.
- Default list (in order from most to least preferable):
chacha20-poly1305@openssh.com
(priority of chacha20-poly1305 may vary depending upon CPU and/or optional binding availability)aes128-gcm
aes128-gcm@openssh.com
aes256-gcm
aes256-gcm@openssh.com
aes128-ctr
aes192-ctr
aes256-ctr
- Other supported names:
3des-cbc
aes256-cbc
aes192-cbc
aes128-cbc
arcfour256
arcfour128
arcfour
blowfish-cbc
cast128-cbc
-
compress - mixed - Compression algorithms.
- Default list (in order from most to least preferable):
- Other supported names:
-
hmac - mixed - (H)MAC algorithms.
- Default list (in order from most to least preferable):
hmac-sha2-256-etm@openssh.com
hmac-sha2-512-etm@openssh.com
hmac-sha1-etm@openssh.com
hmac-sha2-256
hmac-sha2-512
hmac-sha1
- Other supported names:
hmac-md5
hmac-sha2-256-96
hmac-sha2-512-96
hmac-ripemd160
hmac-sha1-96
hmac-md5-96
-
kex - mixed - Key exchange algorithms.
- Default list (in order from most to least preferable):
curve25519-sha256
(node v14.0.0+)curve25519-sha256@libssh.org
(node v14.0.0+)ecdh-sha2-nistp256
ecdh-sha2-nistp384
ecdh-sha2-nistp521
diffie-hellman-group-exchange-sha256
diffie-hellman-group14-sha256
diffie-hellman-group15-sha512
diffie-hellman-group16-sha512
diffie-hellman-group17-sha512
diffie-hellman-group18-sha512
- Other supported names:
diffie-hellman-group-exchange-sha1
diffie-hellman-group14-sha1
diffie-hellman-group1-sha1
-
serverHostKey - mixed - Server host key formats.
- Default list (in order from most to least preferable):
ssh-ed25519
(node v12.0.0+)ecdsa-sha2-nistp256
ecdsa-sha2-nistp384
ecdsa-sha2-nistp521
rsa-sha2-512
rsa-sha2-256
ssh-rsa
- Other supported names:
-
authHandler - mixed - Either an array of objects as described below or a function with parameters (methodsLeft, partialSuccess, callback)
where methodsLeft
and partialSuccess
are null
on the first authentication attempt, otherwise are an array and boolean respectively. Return or call callback()
with either the name of the authentication method or an object containing the method name along with method-specific details to try next (return/pass false
to signal no more methods to try). Valid method names are: 'none', 'password', 'publickey', 'agent', 'keyboard-interactive', 'hostbased'
. Default: function that follows a set method order: None -> Password -> Private Key -> Agent (-> keyboard-interactive if tryKeyboard
is true
) -> Hostbased
-
When returning or calling callback()
with an object, it can take one of the following forms:
{
type: 'none',
username: 'foo',
}
{
type: 'password'
username: 'foo',
password: 'bar',
}
{
type: 'publickey'
username: 'foo',
key: ...,
passphrase: ...,
}
{
type: 'hostbased'
username: 'foo',
localHostname: 'baz',
localUsername: 'quux',
key: ...,
passphrase: ...,
}
{
type: 'agent'
username: 'foo',
agent: ...,
}
{
type: 'keyboard-interactive'
username: 'foo',
prompt: (name, instructions, instructionsLang, prompts, finish) => {
},
}
-
debug - function - Set this to a function that receives a single string argument to get detailed (local) debug information. Default: (none)
-
forceIPv4 - boolean - Only connect via resolved IPv4 address for host
. Default: false
-
forceIPv6 - boolean - Only connect via resolved IPv6 address for host
. Default: false
-
host - string - Hostname or IP address of the server. Default: 'localhost'
-
hostHash - string - Any valid hash algorithm supported by node. The host's key is hashed using this algorithm and passed to the hostVerifier function as a hex string. Default: (none)
-
hostVerifier - function - Function with parameters (hashedKey[, callback])
where hashedKey
is a string hex hash of the host's key for verification purposes. Return true
to continue with the handshake or false
to reject and disconnect, or call callback()
with true
or false
if you need to perform asynchronous verification. Default: (auto-accept if hostVerifier
is not set)
-
keepaliveCountMax - integer - How many consecutive, unanswered SSH-level keepalive packets that can be sent to the server before disconnection (similar to OpenSSH's ServerAliveCountMax config option). Default: 3
-
keepaliveInterval - integer - How often (in milliseconds) to send SSH-level keepalive packets to the server (in a similar way as OpenSSH's ServerAliveInterval config option). Set to 0 to disable. Default: 0
-
localAddress - string - IP address of the network interface to use to connect to the server. Default: (none -- determined by OS)
-
localHostname - string - Along with localUsername and privateKey, set this to a non-empty string for hostbased user authentication. Default: (none)
-
localPort - string - The local port number to connect from. Default: (none -- determined by OS)
-
localUsername - string - Along with localHostname and privateKey, set this to a non-empty string for hostbased user authentication. Default: (none)
-
passphrase - string - For an encrypted privateKey
, this is the passphrase used to decrypt it. Default: (none)
-
password - string - Password for password-based user authentication. Default: (none)
-
port - integer - Port number of the server. Default: 22
-
privateKey - mixed - Buffer or string that contains a private key for either key-based or hostbased user authentication (OpenSSH format). Default: (none)
-
readyTimeout - integer - How long (in milliseconds) to wait for the SSH handshake to complete. Default: 20000
-
sock - ReadableStream - A ReadableStream to use for communicating with the server instead of creating and using a new TCP connection (useful for connection hopping).
-
strictVendor - boolean - Performs a strict server vendor check before sending vendor-specific requests, etc. (e.g. check for OpenSSH server when using openssh_noMoreSessions()
) Default: true
-
tryKeyboard - boolean - Try keyboard-interactive user authentication if primary user authentication method fails. If you set this to true
, you need to handle the keyboard-interactive
event. Default: false
-
username - string - Username for authentication. Default: (none)
-
events - Object - List of events to listen to. Default: (none)
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