WS Federation middleware for node.js.

Installation

npm install wsfed

Introduction

This middleware is meant to generate a valid WSFederation endpoint that talks saml.

The idea is that you will use another mechanism to valida the user first.

The endpoint supports metadata as well in the url /FederationMetadata/2007-06/FederationMetadata.xml.

Usage

Options

Name	Description	Default
cert	public key used by this identity provider	REQUIRED
key	private key used by this identity provider	REQUIRED
getPostURL	get the url to post the token f(wtrealm, wreply, req, callback)	REQUIRED
issuer	the name of the issuer of the token	REQUIRED
audience	the audience for the saml token	req.query.wtrealm
getUserFromRequest	how to extract the user information from request	function(req) { return req.user; }
profileMapper	mapper to map users to claims (see PassportProfileMapper)	PassportProfileMapper
signatureAlgorithm	signature algorithm, options: rsa-sha1, rsa-sha256	'rsa-sha256'
digestAlgorithm	digest algorithm, options: sha1, sha256	'sha256'
wctx	state of the auth process	req.query.wctx

Add the middleware as follows:

app.get('/wsfed', wsfed.auth({
  issuer:     'the-issuer',
  cert:       fs.readFileSync(path.join(__dirname, 'some-cert.pem')),
  key:        fs.readFileSync(path.join(__dirname, 'some-cert.key')),
  getPostURL: function (wtrealm, wreply, req, callback) {
                return cb( null, 'http://someurl.com')
              }
}));

WsFederation Metadata

wsfed can generate the metadata document for wsfederation as well. Usage as follows:

app.get('/wsfed/FederationMetadata/2007-06/FederationMetadata.xml', wsfed.metadata({
  issuer:   'the-issuer',
  cert:     fs.readFileSync(path.join(__dirname, 'some-cert.pem')),
}));

It also accept two optionals parameters:

• profileMapper: a class implementing the profile mapper. This is used to render the claims type information (using the metadata property). See PassportProfileMapper for more information.
• endpointPath: this is the full path in your server to the auth route. By default the metadata handler uses the metadata request route without /FederationMetadata/2007..blabla.

WsFederation Metadata endpoints ADFS1-like

ADFS v1 uses another set of endpoints for the metadata and the thumbprint. If you have to connect an ADFS v1 client you have to do something like this:

app.get('/wsfed/adfs/fs/federationserverservice.asmx',
    wsfed.federationServerService.wsdl);

app.post('/wsfed/adfs/fs/federationserverservice.asmx',
    wsfed.federationServerService.thumbprint({
      pkcs7: yourPkcs7,
      cert:  yourCert
    }));

notice that you need a pkcs7 with the full chain of all certificates. You can generate this with openssl as follows:

openssl crl2pkcs7 -nocrl \
    -certfile your.crt \
    -certfile another-cert-in-the-chain.crt \
    -out contoso1.p7b

JWT

By default the signed assertion is a SAML token, you can use JWT tokens as follows:

app.get('/wsfed', wsfed.auth({
  jwt:        true,
  issuer:     'the-issuer',
  key:        fs.readFileSync(path.join(__dirname, 'some-cert.key')),
  getPostUrl: function (wtrealm, wreply, req, callback) {
                return cb( null, 'http://someurl.com')
              }
}));

Issue Reporting

If you have found a bug or if you have a feature request, please report them at this repository issues section. Please do not report security vulnerabilities on the public GitHub issue tracker. The Responsible Disclosure Program details the procedure for disclosing security issues.

Author

Auth0

License

This project is licensed under the MIT license. See the LICENSE file for more info.