SMB Server for Node.js

Overwiew

node-smb-server is an open-source JavaScript implementation of the SMB/CIFS file sharing protocol.

Some highlights:

• pure JavaScript
• fully configurable/customizable
• extensible: allows to expose non-filesystem based data as a mountable file system via an abstract backend SPI (similar to Samba's VFS)

Installation

npm install node-smb-server

or

git clone https://github.com/adobe/node-smb-server.git
cd node-smb-server
npm install

Getting started

Execute the following commands in a terminal:

cd <node-smb-server install dir>
npm start

In Finder, open the 'Connect to Server' dialog (⌘K) and enter the url smb://localhost:8445/fs (user: test, password: test).

Getting your hands dirty

User management

The following users are pre-configured: test/test, admin/admin, guest/<empty password>

Users can be edited in the config.json file:

...
"users" : {
    "test" : {
      "lmHash" : "01fc5a6be7bc6929aad3b435b51404ee",
      "ntlmHash" : "0cb6948805f797bf2a82807973b89537"
    },
    "admin" : {
      "lmHash" : "f0d412bd764ffe81aad3b435b51404ee",
      "ntlmHash" : "209c6174da490caeb422f3fa5a7ae634"
    },
    "guest" : {
      "lmHash" : "aad3b435b51404eeaad3b435b51404ee",
      "ntlmHash" : "31d6cfe0d16ae931b73c59d7e0c089c0"
    }
  }
...

Password hashes can be computed by running:

node createhash.js

Share configuration

Share configurations can be edited in the config.json file, e.g.:

...
 "shares": {
    "FS": {
      "backend": "fs",
      "description": "fs-based test share",
      "path": "./smbroot"
    },
    "JCR": {
      "backend": "jcr",
      "description": "AEM-based test share",
      "host": "localhost",
      "port": 4502,
      "protocol": "http:",
      "auth": {
        "user": "<user>",
        "pass": "<pwd>"
      },
      "path": "/",
      "maxSockets": 64,
      "contentCacheTTL": 30000,
      "binCacheTTL": 600000
    },
...

Developing a custom backend

Consider the following example use case:

You would like to enable your desktop applications to access data and documents stored in a RDBMS or a Cloud-based service.

You could write a custom backend by implementing the Share, Tree and File interfaces of the virtual backend SPI (lib/spi). Check out the existing implementations (lib/backends) to get an idea.

Current Status

• Implements CIFS and MS-SMB 1.0.
• Support for SMB2 is currently work in progress.
• Supports LM, LMv2, NTLM, NTLMSSP authentication protocols
• Supported backends:
  • local file system (lib/backends/fs)
  • JCR (lib/backends/jcr)
  • AEM Assets (lib/backends/dam)
• Tested with Finder on OS X (Yosemite, El Capitan, Sierra).

ToDo's

• Test with other clients on other platforms (Windows, Linux).
• Test cases/suite

CIFS/SMB:

• missing NT_TRANSACT subcommands
• missing TRANSACTION subcommands
• missing TRANSACTION2 subcommand information levels
• missing CIFS commands:
  • TRANSACTION_SECONDARY
  • TRANSACTION2_SECONDARY
  • NT_TRANSACT_SECONDARY
  • OPEN_PRINT_FILE
• support for named streams?
• SMB Signing?
• proper implementation of LOCKING_ANDX?

Check/Implement the following protocol extensions/versions:

• SMB2/3