oidc-library-portal/src/main/java/org/gcube/portal/oidc/lr62/OIDCUmaUtil.java

408 lines
20 KiB
Java

package org.gcube.portal.oidc.lr62;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.net.URL;
import java.net.URLEncoder;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import org.gcube.common.authorization.library.provider.UmaJWTProvider;
import org.gcube.oidc.rest.JWTToken;
import org.gcube.oidc.rest.OpenIdConnectConfiguration;
import org.gcube.oidc.rest.OpenIdConnectRESTHelper;
import org.gcube.oidc.rest.OpenIdConnectRESTHelperException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.liferay.portal.kernel.exception.PortalException;
import com.liferay.portal.kernel.exception.SystemException;
import com.liferay.portal.model.User;
import com.liferay.portal.service.UserLocalServiceUtil;
import com.liferay.portal.util.PortalUtil;
public class OIDCUmaUtil {
private static final Logger log = LoggerFactory.getLogger(OIDCUmaUtil.class);
private static final boolean REFRESH_UMA_TOKEN = false;
private static final String LOGOUT_URI = "/c/portal/logout";
private static final boolean FORCE_LOGOUT_ON_INVALID_TOKEN = true;
private static final boolean FORCE_LOGOUT_ON_MISSING_OIDC = true;
private static final boolean FORCE_LOGOUT_ON_OIDC_REFRESH_ERROR = true;
private static final int MAX_AUTHORIZATION_RETRY_ATTEMPTS = 4;
private static final int AUTHORIZATION_RETRY_ATTEMPTS_DELAY = 4000;
public static void provideConfiguredPortalClientUMATokenInThreadLocal(String infraContext) {
OpenIdConnectConfiguration configuration = LiferayOpenIdConnectConfiguration.getConfiguration();
String clientId = configuration.getPortalClientId();
String clientSecret = configuration.getPortalClientSecret();
provideClientUMATokenInThreadLocal(clientId, clientSecret, configuration.getTokenURL(), infraContext);
}
public static void provideClientUMATokenInThreadLocal(String clientId, String clientSecret, URL tokenURL,
String infraContext) {
try {
log.debug("Getting client token from server");
JWTToken clientToken = OpenIdConnectRESTHelper.queryClientToken(clientId, clientSecret, tokenURL);
provideClientUMATokenInThreadLocal(clientToken.getAccessTokenAsBearer(), tokenURL, infraContext);
} catch (Exception e) {
log.error("Cannot retrieve client OIDC token", e);
return;
}
}
public static void provideClientUMATokenInThreadLocal(String clientAuthorizationBearer, URL tokenURL,
String infraContext) {
String encodedContext;
try {
encodedContext = URLEncoder.encode(infraContext, "UTF-8");
} catch (UnsupportedEncodingException e) {
log.error("Cannot URL encode context", e);
return;
}
log.debug("URL encoded context is: {}", encodedContext);
try {
log.debug("Getting UMA token from server");
JWTToken umaToken = OpenIdConnectRESTHelper.queryUMAToken(tokenURL, clientAuthorizationBearer,
encodedContext, null);
log.debug("Setting token in the UMA JWT provider");
UmaJWTProvider.instance.set(JWTTokenUtil.getRawContent(umaToken));
} catch (Exception e) {
log.error("Cannot retrieve client UMA token", e);
return;
}
}
/**
* Used to request a temporary UMA/RPT token to the OIDC server in a specific context for an user.
*
* The OIDC access token in the {@link JWTCacheProxy} for the user in the current <code>session</code> will be used.
*
* @param request the current HTTP request
* @param screenName the user's user id
* @param scope the scope to issue the token for (e.g. "/gcube")
* @return the temporary token in the requested context for the user
* @throws UMAException if a generic error related to the UMA/RPT token issue occurs
* @throws InvalidTokenException if the OIDC access token is become invalid for the user
* @throws MissingTokenException if the OIDC token is missing for the user in the cache proxy
* @throws RefreshException if an error occurs refreshing the OIDC token that is expired
* @throws NotAuthorizedException if the user is not authorized to access the requested context
*/
public static JWTToken getUMAToken(HttpServletRequest request, Long userId, String scope)
throws UMAException, InvalidTokenException, MissingTokenException, RefreshException,
NotAuthorizedException {
return getUMAToken(request, userId, scope, true);
}
private static JWTToken getUMAToken(HttpServletRequest request, Long userId, String scope, boolean temporary)
throws UMAException, InvalidTokenException, MissingTokenException, RefreshException,
NotAuthorizedException {
try {
return getUMAToken(request, UserLocalServiceUtil.getUser(userId), scope, temporary);
} catch (PortalException | SystemException e) {
throw new UMAException("Cannot get liferay user from userId", e);
}
}
/**
* Used to request a temporary UMA/RPT token to the OIDC server in a specific context for an user.
*
* The OIDC access token in the {@link JWTCacheProxy} for the user in the current <code>session</code> will be used.
*
* @param request the current HTTP request
* @param screenName the user's screen name
* @param scope the scope to issue the token for (e.g. "/gcube")
* @return the temporary token in the requested context for the user
* @throws UMAException if a generic error related to the UMA/RPT token issue occurs
* @throws InvalidTokenException if the OIDC access token is become invalid for the user
* @throws MissingTokenException if the OIDC token is missing for the user in the cache proxy
* @throws RefreshException if an error occurs refreshing the OIDC token that is expired
* @throws NotAuthorizedException if the user is not authorized to access the requested context
*/
public static JWTToken getUMAToken(HttpServletRequest request, String screenName, String scope)
throws UMAException, InvalidTokenException, MissingTokenException, RefreshException,
NotAuthorizedException {
return getUMAToken(request, screenName, scope, true);
}
private static JWTToken getUMAToken(HttpServletRequest request, String screenName, String scope, boolean temporary)
throws UMAException, InvalidTokenException, MissingTokenException, RefreshException,
NotAuthorizedException {
try {
return getUMAToken(request,
UserLocalServiceUtil.getUserByScreenName(PortalUtil.getCompanyId(request), screenName), scope, temporary);
} catch (PortalException | SystemException e) {
throw new UMAException("Cannot get liferay user from companyId and screenName", e);
}
}
public static JWTToken getUMAToken(HttpServletRequest request, User user, String scope)
throws InvalidTokenException, MissingTokenException, RefreshException, NotAuthorizedException,
UMAException {
return getUMAToken(request, user, scope, true);
}
private static JWTToken getUMAToken(HttpServletRequest request, User user, String scope, boolean temporary)
throws InvalidTokenException, MissingTokenException, RefreshException, NotAuthorizedException,
UMAException {
return getUMAToken(request, user, request.getSession(false), scope, temporary);
}
// public static JWTToken getUMAToken(HttpServletRequest request, User user, HttpSession session, String scope)
// throws InvalidTokenException, MissingTokenException, RefreshException, NotAuthorizedException,
// UMAException {
//
// return getUMAToken(request, user, session, scope, true);
// }
private static JWTToken getUMAToken(HttpServletRequest request, User user, HttpSession session, String scope,
boolean temporary)
throws InvalidTokenException, MissingTokenException, RefreshException, NotAuthorizedException,
UMAException {
if (user == null) {
log.error("User is null, cannot continue");
return null;
}
log.debug("Current user is: {} [{}]", user.getScreenName(), user.getEmailAddress());
if (session == null) {
log.debug("Session is null, cannot continue");
throw new UMAException("Session is null");
}
String sessionId = session.getId();
log.debug("Current session ID is {}", sessionId);
String urlEncodedScope = null;
try {
urlEncodedScope = URLEncoder.encode(scope, "UTF-8");
} catch (UnsupportedEncodingException e) {
// Almost impossible
log.error("Cannot URL encode scope", e);
return null;
}
log.debug("URL encoded scope is: {}", urlEncodedScope);
JWTToken umaToken = null;
JWTCacheProxy jwtCacheProxy = JWTCacheProxy.getInstance();
synchronized (jwtCacheProxy.getMutexFor(user)) {
log.trace("Getting UMA token for user {}, and session {}", user.getScreenName(), sessionId);
umaToken = jwtCacheProxy.getUMAToken(user, sessionId);
if (umaToken != null && !umaToken.isExpired() && umaToken.getAud().contains(urlEncodedScope)) {
log.trace("Current UMA token is OK {}", umaToken.getTokenEssentials());
} else {
if (umaToken != null && umaToken.getAud().contains(urlEncodedScope) && umaToken.isExpired()) {
if (REFRESH_UMA_TOKEN) {
log.debug("Suitable UMA token found but is expired, trying to refresh it {}",
umaToken.getTokenEssentials());
OpenIdConnectConfiguration configuration = LiferayOpenIdConnectConfiguration
.getConfiguration(request);
try {
umaToken = OpenIdConnectRESTHelper.refreshToken(configuration.getTokenURL(), umaToken);
log.debug("Got a refreshed UMA token {}", umaToken.getTokenEssentials());
log.debug("Setting the refreshed UMA token in cache proxy for user {}, and session]",
user.getScreenName(), sessionId);
// This is independent from "temporary" setting since is a refresh of an expired token
// issued for the same context
jwtCacheProxy.setUMAToken(user, sessionId, umaToken);
} catch (OpenIdConnectRESTHelperException e) {
if (e.hasJSONPayload()) {
if (OpenIdConnectRESTHelper.isInvalidBearerTokenError(e.getResponseString())) {
throw new InvalidTokenException("UMA token become invalid", e);
} else if (OpenIdConnectRESTHelper.isTokenNotActiveError(e.getResponseString())) {
log.info("UMA token is no more active, get new one");
} else {
log.error("Other UMA token refresh error", e);
}
} else {
log.error("Refreshing UMA token on server " + umaToken.getTokenEssentials(), e);
}
umaToken = null;
log.debug(
"Removing inactive UMA token from cache proxy if present for user {} and session {}",
user.getScreenName(), sessionId);
jwtCacheProxy.removeUMAToken(user, sessionId);
}
} else {
log.debug("Suitable UMA token found but it is expired."
+ "It will be replaced with new one according to settings {}",
umaToken.getTokenEssentials());
umaToken = null;
log.debug("Removing inactive UMA token from cache proxy if present for user {} and session {}",
user.getScreenName(), sessionId);
jwtCacheProxy.removeUMAToken(user, sessionId);
}
}
if (umaToken == null || !umaToken.getAud().contains(urlEncodedScope)) {
boolean scopeIsChanged = false;
if (umaToken == null) {
log.debug("Getting new UMA token for scope {}", urlEncodedScope);
} else if (!umaToken.getAud().contains(urlEncodedScope)) {
scopeIsChanged = true;
log.info("Getting new UMA token for scope {} since it has been issued for another scope {}",
urlEncodedScope, umaToken.getTokenEssentials());
}
log.debug("Getting OIDC token from cache proxy for user {} and session {}", user.getScreenName(),
sessionId);
JWTToken authToken = jwtCacheProxy.getOIDCToken(user, sessionId);
if (authToken == null) {
throw new MissingTokenException("Token is null in proxy");
} else {
log.debug("OIDC token is {}", authToken.getTokenEssentials());
}
OpenIdConnectConfiguration configuration = LiferayOpenIdConnectConfiguration
.getConfiguration(request);
boolean isNotAuthorized = false;
int authorizationAttempts = 0;
do {
try {
if (isNotAuthorized || scopeIsChanged || authToken.isExpired()) {
if (isNotAuthorized) {
log.info(
"UMA token is not authorized with current OIDC token, "
+ "refreshing it to be sure that new grants are present. "
+ "[attempts: {}]",
authorizationAttempts);
// Resetting the flag to be sure to have correct log message each loop
isNotAuthorized = false;
} else if (scopeIsChanged) {
log.info(
"Scope is changed, refreshing token to be sure that new grants are present");
} else if (authToken.isExpired()) {
log.debug("OIDC token is expired, trying to refresh it {}",
authToken.getTokenEssentials());
}
try {
authToken = OpenIdConnectRESTHelper.refreshToken(configuration.getTokenURL(),
authToken);
} catch (OpenIdConnectRESTHelperException e) {
throw new RefreshException("Refreshing OIDC token", e);
}
log.debug("Setting refreshed OIDC token in cache proxy");
jwtCacheProxy.setOIDCToken(user, sessionId, authToken);
}
log.info("Getting UMA token from OIDC endpoint for scope: " + urlEncodedScope);
umaToken = OpenIdConnectRESTHelper.queryUMAToken(configuration.getTokenURL(),
authToken.getAccessTokenAsBearer(), urlEncodedScope, null);
log.debug("Got new UMA token {}", umaToken.getTokenEssentials());
} catch (OpenIdConnectRESTHelperException e) {
if (e.hasJSONPayload()) {
if (OpenIdConnectRESTHelper.isInvalidBearerTokenError(e.getResponseString())) {
throw new InvalidTokenException("OIDC token is become invalid", e);
} else if (OpenIdConnectRESTHelper
.isAccessDeniedNotAuthorizedError(e.getResponseString())) {
log.info("UMA token is" + (isNotAuthorized ? " still" : "")
+ " not authorized with actual OIDC token");
isNotAuthorized = true;
authorizationAttempts += 1;
if (authorizationAttempts <= MAX_AUTHORIZATION_RETRY_ATTEMPTS) {
log.debug("Sleeping " + AUTHORIZATION_RETRY_ATTEMPTS_DELAY
+ " ms and looping refreshing the OIDC");
try {
Thread.sleep(AUTHORIZATION_RETRY_ATTEMPTS_DELAY);
} catch (InterruptedException ie) {
ie.printStackTrace();
}
} else {
throw new NotAuthorizedException("OIDC token refresh attempts exhausted");
}
}
} else {
throw new UMAException(e);
}
}
} while (isNotAuthorized);
}
if (!temporary) {
log.debug("Setting UMA token in cache proxy for user {} and session {}", user.getScreenName(),
sessionId);
jwtCacheProxy.setUMAToken(user, sessionId, umaToken);
}
}
}
return umaToken;
}
public static void checkUMATicketAndProvideInThreadLocal(HttpServletRequest request, HttpServletResponse response,
User user, HttpSession session, String scope) {
try {
JWTToken umaToken = getUMAToken(request, user, session, scope, false);
log.trace("Current UMA token in use is: {}", umaToken.getTokenEssentials());
log.debug("Setting UMA token with jti {} in UMA JWT provider", umaToken.getJti());
UmaJWTProvider.instance.set(umaToken.getRaw());
} catch (MissingTokenException e) {
if (FORCE_LOGOUT_ON_MISSING_OIDC) {
log.debug("OIDC token is null in cache proxy, force redirecting to logut URI");
forceLogout(response);
} else {
log.debug("OIDC token is null in cache proxy, cannot continue");
}
return;
} catch (RefreshException e) {
if (FORCE_LOGOUT_ON_OIDC_REFRESH_ERROR) {
log.warn("Error refreshing OIDC token, force redirecting to logut URI");
forceLogout(response);
} else {
log.error("Refreshing OIDC token on server", e);
}
return;
} catch (InvalidTokenException e) {
if (FORCE_LOGOUT_ON_INVALID_TOKEN) {
log.warn("OIDC token is become invalid, forcing redirect to logout URI");
forceLogout(response);
} else {
log.error("OIDC token is become invalid, cannot continue");
}
return;
} catch (NotAuthorizedException e) {
log.error("", e);
} catch (UMAException e) {
log.error("Getting UMA token from server", e);
}
}
protected static void forceLogout(HttpServletResponse response) {
try {
if (!response.isCommitted()) {
response.sendRedirect(LOGOUT_URI);
} else {
log.warn("Cannot redirect to logout URI since the response is already commited");
}
} catch (IOException e) {
log.error("Cannot redirect to logout URI: " + LOGOUT_URI, e);
}
}
}