Examples with LoginCredentials org.apache.nifi.authentication.LoginCredentials used on opensource projects

Example 1 with LoginCredentials

use of org.apache.nifi.authentication.LoginCredentials in project nifi by apache.

the class AccessResource method createAccessToken.

/**
 * Creates a token for accessing the REST API via username/password.
 *
 * @param httpServletRequest the servlet request
 * @param username           the username
 * @param password           the password
 * @return A JWT (string)
 */
@POST
@Consumes(MediaType.APPLICATION_FORM_URLENCODED)
@Produces(MediaType.TEXT_PLAIN)
@Path("/token")
@ApiOperation(value = "Creates a token for accessing the REST API via username/password", notes = "The token returned is formatted as a JSON Web Token (JWT). The token is base64 encoded and comprised of three parts. The header, " + "the body, and the signature. The expiration of the token is a contained within the body. The token can be used in the Authorization header " + "in the format 'Authorization: Bearer <token>'.", response = String.class)
@ApiResponses(value = { @ApiResponse(code = 400, message = "NiFi was unable to complete the request because it was invalid. The request should not be retried without modification."), @ApiResponse(code = 403, message = "Client is not authorized to make this request."), @ApiResponse(code = 409, message = "Unable to create access token because NiFi is not in the appropriate state. (i.e. may not be configured to support username/password login."), @ApiResponse(code = 500, message = "Unable to create access token because an unexpected error occurred.") })
public Response createAccessToken(@Context HttpServletRequest httpServletRequest, @FormParam("username") String username, @FormParam("password") String password) {
    // only support access tokens when communicating over HTTPS
    if (!httpServletRequest.isSecure()) {
        throw new IllegalStateException("Access tokens are only issued over HTTPS.");
    }
    // if not configuration for login, don't consider credentials
    if (loginIdentityProvider == null) {
        throw new IllegalStateException("Username/Password login not supported by this NiFi.");
    }
    final LoginAuthenticationToken loginAuthenticationToken;
    // ensure we have login credentials
    if (StringUtils.isBlank(username) || StringUtils.isBlank(password)) {
        throw new IllegalArgumentException("The username and password must be specified.");
    }
    try {
        // attempt to authenticate
        final AuthenticationResponse authenticationResponse = loginIdentityProvider.authenticate(new LoginCredentials(username, password));
        long expiration = validateTokenExpiration(authenticationResponse.getExpiration(), authenticationResponse.getIdentity());
        // create the authentication token
        loginAuthenticationToken = new LoginAuthenticationToken(authenticationResponse.getIdentity(), expiration, authenticationResponse.getIssuer());
    } catch (final InvalidLoginCredentialsException ilce) {
        throw new IllegalArgumentException("The supplied username and password are not valid.", ilce);
    } catch (final IdentityAccessException iae) {
        throw new AdministrationException(iae.getMessage(), iae);
    }
    // generate JWT for response
    final String token = jwtService.generateSignedToken(loginAuthenticationToken);
    // build the response
    final URI uri = URI.create(generateResourceUri("access", "token"));
    return generateCreatedResponse(uri, token).build();
}