public void testGetToken() throws Exception {
AuthenticationFilter filter = new AuthenticationFilter();
try {
FilterConfig config = Mockito.mock(FilterConfig.class);
Mockito.when(config.getInitParameter(AuthenticationFilter.AUTH_TYPE))
.thenReturn(DummyAuthenticationHandler.class.getName());
Mockito.when(config.getInitParameter(AuthenticationFilter.SIGNATURE_SECRET))
.thenReturn("secret");
Mockito.when(config.getInitParameterNames())
.thenReturn(
new Vector(
Arrays.asList(
AuthenticationFilter.AUTH_TYPE, AuthenticationFilter.SIGNATURE_SECRET))
.elements());
filter.init(config);
AuthenticationToken token =
new AuthenticationToken("u", "p", DummyAuthenticationHandler.TYPE);
token.setExpires(System.currentTimeMillis() + 1000);
Signer signer = new Signer("secret".getBytes());
String tokenSigned = signer.sign(token.toString());
Cookie cookie = new Cookie(AuthenticatedURL.AUTH_COOKIE, tokenSigned);
HttpServletRequest request = Mockito.mock(HttpServletRequest.class);
Mockito.when(request.getCookies()).thenReturn(new Cookie[] {cookie});
AuthenticationToken newToken = filter.getToken(request);
assertEquals(token.toString(), newToken.toString());
} finally {
filter.destroy();
}
}
/**
* Returns the {@link AuthenticationToken} for the request.
*
* <p>It looks at the received HTTP cookies and extracts the value of the {@link
* AuthenticatedURL#AUTH_COOKIE} if present. It verifies the signature and if correct it creates
* the {@link AuthenticationToken} and returns it.
*
* <p>If this method returns <code>null</code> the filter will invoke the configured {@link
* AuthenticationHandler} to perform user authentication.
*
* @param request request object.
* @return the Authentication token if the request is authenticated, <code>null</code> otherwise.
* @throws IOException thrown if an IO error occurred.
* @throws AuthenticationException thrown if the token is invalid or if it has expired.
*/
protected AuthenticationToken getToken(HttpServletRequest request)
throws IOException, AuthenticationException {
AuthenticationToken token = null;
String tokenStr = null;
Cookie[] cookies = request.getCookies();
if (cookies != null) {
for (Cookie cookie : cookies) {
if (cookie.getName().equals(AuthenticatedURL.AUTH_COOKIE)) {
tokenStr = cookie.getValue();
try {
tokenStr = signer.verifyAndExtract(tokenStr);
} catch (SignerException ex) {
throw new AuthenticationException(ex);
}
break;
}
}
}
if (tokenStr != null) {
token = AuthenticationToken.parse(tokenStr);
if (!token.getType().equals(authHandler.getType())) {
throw new AuthenticationException("Invalid AuthenticationToken type");
}
if (token.isExpired()) {
throw new AuthenticationException("AuthenticationToken expired");
}
}
return token;
}
public void testDoFilterAuthenticated() throws Exception {
AuthenticationFilter filter = new AuthenticationFilter();
try {
FilterConfig config = Mockito.mock(FilterConfig.class);
Mockito.when(config.getInitParameter(AuthenticationFilter.AUTH_TYPE))
.thenReturn(DummyAuthenticationHandler.class.getName());
Mockito.when(config.getInitParameterNames())
.thenReturn(new Vector(Arrays.asList(AuthenticationFilter.AUTH_TYPE)).elements());
filter.init(config);
HttpServletRequest request = Mockito.mock(HttpServletRequest.class);
Mockito.when(request.getRequestURL()).thenReturn(new StringBuffer("http://foo:8080/bar"));
AuthenticationToken token = new AuthenticationToken("u", "p", "t");
token.setExpires(System.currentTimeMillis() + 1000);
Signer signer = new Signer("alfredo".getBytes());
String tokenSigned = signer.sign(token.toString());
Cookie cookie = new Cookie(AuthenticatedURL.AUTH_COOKIE, tokenSigned);
Mockito.when(request.getCookies()).thenReturn(new Cookie[] {cookie});
HttpServletResponse response = Mockito.mock(HttpServletResponse.class);
FilterChain chain = Mockito.mock(FilterChain.class);
Mockito.doAnswer(
new Answer() {
@Override
public Object answer(InvocationOnMock invocation) throws Throwable {
Object[] args = invocation.getArguments();
HttpServletRequest request = (HttpServletRequest) args[0];
assertEquals("u", request.getRemoteUser());
assertEquals("p", request.getUserPrincipal().getName());
return null;
}
})
.when(chain)
.doFilter(Mockito.<ServletRequest>anyObject(), Mockito.<ServletResponse>anyObject());
filter.doFilter(request, response, chain);
} finally {
filter.destroy();
}
}
/**
* If the request has a valid authentication token it allows the request to continue to the target
* resource, otherwise it triggers an authentication sequence using the configured {@link
* AuthenticationHandler}.
*
* @param request the request object.
* @param response the response object.
* @param filterChain the filter chain object.
* @throws IOException thrown if an IO error occurred.
* @throws ServletException thrown if a processing error occurred.
*/
@Override
public void doFilter(ServletRequest request, ServletResponse response, FilterChain filterChain)
throws IOException, ServletException {
boolean unauthorizedResponse = true;
int errCode = HttpServletResponse.SC_UNAUTHORIZED;
AuthenticationException authenticationEx = null;
HttpServletRequest httpRequest = (HttpServletRequest) request;
HttpServletResponse httpResponse = (HttpServletResponse) response;
boolean isHttps = "https".equals(httpRequest.getScheme());
try {
boolean newToken = false;
AuthenticationToken token;
try {
token = getToken(httpRequest);
} catch (AuthenticationException ex) {
LOG.warn("AuthenticationToken ignored: " + ex.getMessage());
// will be sent back in a 401 unless filter authenticates
authenticationEx = ex;
token = null;
}
if (authHandler.managementOperation(token, httpRequest, httpResponse)) {
if (token == null) {
if (LOG.isDebugEnabled()) {
LOG.debug("Request [{}] triggering authentication", getRequestURL(httpRequest));
}
token = authHandler.authenticate(httpRequest, httpResponse);
if (token != null && token.getExpires() != 0 && token != AuthenticationToken.ANONYMOUS) {
token.setExpires(System.currentTimeMillis() + getValidity() * 1000);
}
newToken = true;
}
if (token != null) {
unauthorizedResponse = false;
if (LOG.isDebugEnabled()) {
LOG.debug(
"Request [{}] user [{}] authenticated",
getRequestURL(httpRequest),
token.getUserName());
}
final AuthenticationToken authToken = token;
httpRequest =
new HttpServletRequestWrapper(httpRequest) {
@Override
public String getAuthType() {
return authToken.getType();
}
@Override
public String getRemoteUser() {
return authToken.getUserName();
}
@Override
public Principal getUserPrincipal() {
return (authToken != AuthenticationToken.ANONYMOUS) ? authToken : null;
}
};
if (newToken && !token.isExpired() && token != AuthenticationToken.ANONYMOUS) {
String signedToken = signer.sign(token.toString());
createAuthCookie(
httpResponse,
signedToken,
getCookieDomain(),
getCookiePath(),
token.getExpires(),
isHttps);
}
filterChain.doFilter(httpRequest, httpResponse);
}
} else {
unauthorizedResponse = false;
}
} catch (AuthenticationException ex) {
// exception from the filter itself is fatal
errCode = HttpServletResponse.SC_FORBIDDEN;
authenticationEx = ex;
LOG.warn("Authentication exception: " + ex.getMessage(), ex);
}
if (unauthorizedResponse) {
if (!httpResponse.isCommitted()) {
createAuthCookie(httpResponse, "", getCookieDomain(), getCookiePath(), 0, isHttps);
if (authenticationEx == null) {
httpResponse.sendError(errCode, "Authentication required");
} else {
httpResponse.sendError(errCode, authenticationEx.getMessage());
}
}
}
}
private void _testDoFilterAuthentication(boolean withDomainPath) throws Exception {
AuthenticationFilter filter = new AuthenticationFilter();
try {
FilterConfig config = Mockito.mock(FilterConfig.class);
Mockito.when(config.getInitParameter(AuthenticationFilter.AUTH_TYPE))
.thenReturn(DummyAuthenticationHandler.class.getName());
Mockito.when(config.getInitParameter(AuthenticationFilter.AUTH_TOKEN_VALIDITY))
.thenReturn("1000");
Mockito.when(config.getInitParameter(AuthenticationFilter.SIGNATURE_SECRET))
.thenReturn("secret");
Mockito.when(config.getInitParameterNames())
.thenReturn(
new Vector(
Arrays.asList(
AuthenticationFilter.AUTH_TYPE,
AuthenticationFilter.AUTH_TOKEN_VALIDITY,
AuthenticationFilter.SIGNATURE_SECRET))
.elements());
if (withDomainPath) {
Mockito.when(config.getInitParameter(AuthenticationFilter.COOKIE_DOMAIN))
.thenReturn(".foo.com");
Mockito.when(config.getInitParameter(AuthenticationFilter.COOKIE_PATH)).thenReturn("/bar");
Mockito.when(config.getInitParameterNames())
.thenReturn(
new Vector(
Arrays.asList(
AuthenticationFilter.AUTH_TYPE,
AuthenticationFilter.AUTH_TOKEN_VALIDITY,
AuthenticationFilter.SIGNATURE_SECRET,
AuthenticationFilter.COOKIE_DOMAIN,
AuthenticationFilter.COOKIE_PATH))
.elements());
}
filter.init(config);
HttpServletRequest request = Mockito.mock(HttpServletRequest.class);
Mockito.when(request.getParameter("authenticated")).thenReturn("true");
Mockito.when(request.getRequestURL()).thenReturn(new StringBuffer("http://foo:8080/bar"));
Mockito.when(request.getQueryString()).thenReturn("authenticated=true");
HttpServletResponse response = Mockito.mock(HttpServletResponse.class);
FilterChain chain = Mockito.mock(FilterChain.class);
final boolean[] calledDoFilter = new boolean[1];
Mockito.doAnswer(
new Answer() {
@Override
public Object answer(InvocationOnMock invocation) throws Throwable {
calledDoFilter[0] = true;
return null;
}
})
.when(chain)
.doFilter(Mockito.<ServletRequest>anyObject(), Mockito.<ServletResponse>anyObject());
final Cookie[] setCookie = new Cookie[1];
Mockito.doAnswer(
new Answer() {
@Override
public Object answer(InvocationOnMock invocation) throws Throwable {
Object[] args = invocation.getArguments();
setCookie[0] = (Cookie) args[0];
return null;
}
})
.when(response)
.addCookie(Mockito.<Cookie>anyObject());
filter.doFilter(request, response, chain);
assertNotNull(setCookie[0]);
assertEquals(AuthenticatedURL.AUTH_COOKIE, setCookie[0].getName());
assertTrue(setCookie[0].getValue().contains("u="));
assertTrue(setCookie[0].getValue().contains("p="));
assertTrue(setCookie[0].getValue().contains("t="));
assertTrue(setCookie[0].getValue().contains("e="));
assertTrue(setCookie[0].getValue().contains("s="));
assertTrue(calledDoFilter[0]);
Signer signer = new Signer("secret".getBytes());
String value = signer.verifyAndExtract(setCookie[0].getValue());
AuthenticationToken token = AuthenticationToken.parse(value);
assertEquals(System.currentTimeMillis() + 1000 * 1000, token.getExpires(), 100);
if (withDomainPath) {
assertEquals(".foo.com", setCookie[0].getDomain());
assertEquals("/bar", setCookie[0].getPath());
} else {
assertNull(setCookie[0].getDomain());
assertNull(setCookie[0].getPath());
}
} finally {
filter.destroy();
}
}
