/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.sling.auth.core.impl;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Dictionary;
import java.util.HashMap;
import java.util.Hashtable;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import javax.security.auth.login.CredentialExpiredException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletRequestEvent;
import javax.servlet.ServletRequestListener;
import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.felix.scr.annotations.Activate;
import org.apache.felix.scr.annotations.Component;
import org.apache.felix.scr.annotations.Deactivate;
import org.apache.felix.scr.annotations.Modified;
import org.apache.felix.scr.annotations.Property;
import org.apache.felix.scr.annotations.PropertyOption;
import org.apache.felix.scr.annotations.PropertyUnbounded;
import org.apache.felix.scr.annotations.Reference;
import org.apache.felix.scr.annotations.ReferencePolicy;
import org.apache.felix.scr.annotations.Service;
import org.apache.sling.api.SlingConstants;
import org.apache.sling.api.auth.Authenticator;
import org.apache.sling.api.auth.NoAuthenticationHandlerException;
import org.apache.sling.api.resource.LoginException;
import org.apache.sling.api.resource.ResourceResolver;
import org.apache.sling.api.resource.ResourceResolverFactory;
import org.apache.sling.auth.core.AuthConstants;
import org.apache.sling.auth.core.AuthUtil;
import org.apache.sling.auth.core.AuthenticationSupport;
import org.apache.sling.auth.core.impl.engine.EngineAuthenticationHandlerHolder;
import org.apache.sling.auth.core.spi.AbstractAuthenticationHandler;
import org.apache.sling.auth.core.spi.AuthenticationFeedbackHandler;
import org.apache.sling.auth.core.spi.AuthenticationHandler;
import org.apache.sling.auth.core.spi.AuthenticationInfo;
import org.apache.sling.auth.core.spi.AuthenticationInfoPostProcessor;
import org.apache.sling.auth.core.spi.DefaultAuthenticationFeedbackHandler;
import org.apache.sling.commons.osgi.OsgiUtil;
import org.osgi.framework.AllServiceListener;
import org.osgi.framework.BundleContext;
import org.osgi.framework.Constants;
import org.osgi.framework.InvalidSyntaxException;
import org.osgi.framework.ServiceEvent;
import org.osgi.framework.ServiceReference;
import org.osgi.framework.ServiceRegistration;
import org.osgi.service.event.Event;
import org.osgi.service.event.EventAdmin;
import org.osgi.service.http.HttpContext;
import org.osgi.util.tracker.ServiceTracker;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* The <code>SlingAuthenticator</code> class is the default implementation for
* handling authentication. This class supports :
* <ul>
* <li>Support for login sessions where session ids are exchanged with cookies
* <li>Support for multiple authentication handlers, which must implement the
* {@link AuthenticationHandler} interface.
* <li>
* <p>
* Currently this class does not support multiple handlers for any one request
* URL.
*/
@Component(name = "org.apache.sling.engine.impl.auth.SlingAuthenticator", label = "%auth.name", description = "%auth.description", metatype = true)
@Service(value = { Authenticator.class, AuthenticationSupport.class, ServletRequestListener.class })
@Property(name = Constants.SERVICE_VENDOR, value = "The Apache Software Foundation")
public class SlingAuthenticator implements Authenticator,
AuthenticationSupport, ServletRequestListener {
/** default log */
private final Logger log = LoggerFactory.getLogger(SlingAuthenticator.class);
@Property(name = Constants.SERVICE_DESCRIPTION)
static final String DESCRIPTION = "Apache Sling Request Authenticator";
/** The default impersonation cookie name */
private static final String DEFAULT_IMPERSONATION_COOKIE = "sling.sudo";
@Property(value = DEFAULT_IMPERSONATION_COOKIE)
public static final String PAR_IMPERSONATION_COOKIE_NAME = "auth.sudo.cookie";
/** The default impersonation parameter name */
private static final String DEFAULT_IMPERSONATION_PARAMETER = "sudo";
@Property(value = DEFAULT_IMPERSONATION_PARAMETER)
public static final String PAR_IMPERSONATION_PAR_NAME = "auth.sudo.parameter";
/** The default new password parameter name */
private static final String DEFAULT_NEWPASSWORD_PARAMETER = "newpassword";
@Property(value = DEFAULT_NEWPASSWORD_PARAMETER)
public static final String PAR_NEWPASSWORD_PAR_NAME = "auth.newpassword.parameter";
/** The default value for allowing anonymous access */
private static final boolean DEFAULT_ANONYMOUS_ALLOWED = true;
@Property(boolValue = DEFAULT_ANONYMOUS_ALLOWED)
public static final String PAR_ANONYMOUS_ALLOWED = "auth.annonymous";
@Property(cardinality = 2147483647)
private static final String PAR_AUTH_REQ = AuthConstants.AUTH_REQUIREMENTS;
@Property()
private static final String PAR_ANONYMOUS_USER = "sling.auth.anonymous.user";
@Property() // TODO: This should be a PASSWORD type
private static final String PAR_ANONYMOUS_PASSWORD = "sling.auth.anonymous.password";
/**
* Value of the {@link #PAR_HTTP_AUTH} property to fully enable the built-in
* HTTP Authentication Handler (value is "enabled").
*/
private static final String HTTP_AUTH_ENABLED = "enabled";
/**
* Value of the {@link #PAR_HTTP_AUTH} property to completely disable the
* built-in HTTP Authentication Handler (value is "disabled").
*/
private static final String HTTP_AUTH_DISABLED = "disabled";
/**
* Value of the {@link #PAR_HTTP_AUTH} property to enable extracting the
* credentials if the HTTP Basic authentication header is present (value is
* "preemptive"). In <i>preemptive</i> mode, though, the
* <code>requestCredentials</code> and <code>dropCredentials</code> methods
* will not send back a 401 response.
*/
private static final String HTTP_AUTH_PREEMPTIVE = "preemptive";
@Property(value = HTTP_AUTH_PREEMPTIVE, options = {
@PropertyOption(name = HTTP_AUTH_ENABLED, value = "Enabled"),
@PropertyOption(name = HTTP_AUTH_PREEMPTIVE, value = "Enabled (Preemptive)"),
@PropertyOption(name = HTTP_AUTH_DISABLED, value = "Disabled") })
private static final String PAR_HTTP_AUTH = "auth.http";
/**
* The default realm for the built-in HTTP Basic authentication handler.
*/
private static final String DEFAULT_REALM = "Sling (Development)";
/**
* The name of the configuration property used to set the Realm of the
* built-in HTTP Basic authentication handler.
*/
@Property(value = DEFAULT_REALM)
public static final String PAR_REALM_NAME = "auth.http.realm";
/**
* Default request URI suffix to expect to be handled by authentication
* handlers and not expecting to cause
* {@link #handleSecurity(HttpServletRequest, HttpServletResponse)} to
* return <code>true</code>.
*/
private static final String DEFAULT_AUTH_URI_SUFFIX = "/j_security_check";
/**
* The name of the configuration property used to set a (potentially
* empty) list of request URI suffixes intended to be handled by
* authentication handlers.
*/
@Property(value = DEFAULT_AUTH_URI_SUFFIX, unbounded = PropertyUnbounded.ARRAY)
public static final String PAR_AUTH_URI_SUFFIX = "auth.uri.suffix";
/**
* The name of the {@link AuthenticationInfo} property providing the option
* {@link org.apache.sling.auth.core.spi.AuthenticationFeedbackHandler}
* handler to be called back on login failure or success.
*/
private static final String AUTH_INFO_PROP_FEEDBACK_HANDLER = "$$sling.auth.AuthenticationFeedbackHandler$$";
@Reference
private ResourceResolverFactory resourceResolverFactory;
private PathBasedHolderCache<AbstractAuthenticationHandlerHolder> authHandlerCache = new PathBasedHolderCache<AbstractAuthenticationHandlerHolder>();
// package protected for access in inner class ...
PathBasedHolderCache<AuthenticationRequirementHolder> authRequiredCache = new PathBasedHolderCache<AuthenticationRequirementHolder>();
/** The name of the impersonation parameter */
private String sudoParameterName;
/** The name of the impersonation cookie */
private String sudoCookieName;
/** Cache control flag */
private boolean cacheControl;
/**
* The configured URI suffices indicating a authentication requests and
* requiring redirects and thus returning <code>false</code> from the
* #handleSecurity method.
* <p>
* This will be <code>null</code> if there are no suffices to consider.
*/
private String[] authUriSuffices;
/**
* The name of the user to assume for anonymous access. By default this is
* <code>null</code> to use <code>null</code> credentials and thus use the
* system provided identification.
*
* @see #getAnonymousCredentials()
*/
private String anonUser;
/**
* The password to use for anonymous access. This property is only used if
* the {@link #anonUser} field is not <code>null</code>.
*
* @see #getAnonymousCredentials()
*/
private char[] anonPassword;
/** name of the new password parameter */
private String newPasswordParameterName;
/** HTTP Basic authentication handler */
private HttpBasicAuthenticationHandler httpBasicHandler;
/** Web Console Plugin service registration */
private ServiceRegistration webConsolePlugin;
/**
* The listener for services registered with "sling.auth.requirements" to
* update the internal authentication requirements
*/
private SlingAuthenticatorServiceListener serviceListener;
/**
* ServiceTracker tracking AuthenticationHandler services
*/
private ServiceTracker authHandlerTracker;
/**
* ServiceTracker tracking old Sling Engine AuthenticationHandler services
*/
private ServiceTracker engineAuthHandlerTracker;
/**
* ServiceTracker tracking AuthenticationInfoPostProcessor services
*/
private ServiceTracker authInfoPostProcessorTracker;
/**
* The event admin service.
*/
@Reference(policy=ReferencePolicy.DYNAMIC)
private volatile EventAdmin eventAdmin;
// ---------- SCR integration
@SuppressWarnings("unused")
@Activate
private void activate(final BundleContext bundleContext,
final Map<String, Object> properties) {
modified(properties);
AuthenticatorWebConsolePlugin plugin = new AuthenticatorWebConsolePlugin(
this);
Hashtable<String, Object> props = new Hashtable<String, Object>();
props.put("felix.webconsole.label", plugin.getLabel());
props.put("felix.webconsole.title", plugin.getTitle());
props.put(Constants.SERVICE_DESCRIPTION,
"Sling Request Authenticator WebConsole Plugin");
props.put(Constants.SERVICE_VENDOR,
properties.get(Constants.SERVICE_VENDOR));
webConsolePlugin = bundleContext.registerService(
"javax.servlet.Servlet", plugin, props);
serviceListener = SlingAuthenticatorServiceListener.createListener(
bundleContext, this);
authHandlerTracker = new AuthenticationHandlerTracker(bundleContext,
authHandlerCache);
engineAuthHandlerTracker = new EngineAuthenticationHandlerTracker(
bundleContext, authHandlerCache);
authInfoPostProcessorTracker = new ServiceTracker(bundleContext, AuthenticationInfoPostProcessor.SERVICE_NAME, null);
authInfoPostProcessorTracker.open();
}
@Modified
private void modified(Map<String, Object> properties) {
if (properties == null) {
properties = new HashMap<String, Object>();
}
String newCookie = (String) properties.get(PAR_IMPERSONATION_COOKIE_NAME);
if (newCookie == null || newCookie.length() == 0) {
newCookie = DEFAULT_IMPERSONATION_COOKIE;
}
if (!newCookie.equals(this.sudoCookieName)) {
log.info(
"modified: Setting new cookie name for impersonation {} (was {})",
newCookie, this.sudoCookieName);
this.sudoCookieName = newCookie;
}
String newPar = (String) properties.get(PAR_IMPERSONATION_PAR_NAME);
if (newPar == null || newPar.length() == 0) {
newPar = DEFAULT_IMPERSONATION_PARAMETER;
}
if (!newPar.equals(this.sudoParameterName)) {
log.info(
"modified: Setting new parameter name for impersonation {} (was {})",
newPar, this.sudoParameterName);
this.sudoParameterName = newPar;
}
authRequiredCache.clear();
final boolean anonAllowed = OsgiUtil.toBoolean(properties.get(PAR_ANONYMOUS_ALLOWED), DEFAULT_ANONYMOUS_ALLOWED);
authRequiredCache.addHolder(new AuthenticationRequirementHolder("/", !anonAllowed, null));
String[] authReqs = OsgiUtil.toStringArray(properties.get(PAR_AUTH_REQ));
if (authReqs != null) {
for (String authReq : authReqs) {
if (authReq != null && authReq.length() > 0) {
authRequiredCache.addHolder(AuthenticationRequirementHolder.fromConfig(
authReq, null));
}
}
}
final String anonUser = OsgiUtil.toString(properties.get(PAR_ANONYMOUS_USER), "");
if (anonUser.length() > 0) {
this.anonUser = anonUser;
this.anonPassword = OsgiUtil.toString(properties.get(PAR_ANONYMOUS_PASSWORD), "").toCharArray();
} else {
this.anonUser = null;
this.anonPassword = null;
}
this.newPasswordParameterName = OsgiUtil.toString(properties.get(PAR_NEWPASSWORD_PAR_NAME), "");
authUriSuffices = OsgiUtil.toStringArray(properties.get(PAR_AUTH_URI_SUFFIX),
new String[] { DEFAULT_AUTH_URI_SUFFIX });
// don't require authentication for login/logout servlets
authRequiredCache.addHolder(new AuthenticationRequirementHolder(
LoginServlet.SERVLET_PATH, false, null));
authRequiredCache.addHolder(new AuthenticationRequirementHolder(
LogoutServlet.SERVLET_PATH, false, null));
// add all registered services
if (serviceListener != null) {
serviceListener.registerServices();
}
final String http;
if (anonAllowed) {
http = OsgiUtil.toString(properties.get(PAR_HTTP_AUTH), HTTP_AUTH_PREEMPTIVE);
} else {
http = HTTP_AUTH_ENABLED;
log.debug("modified: Anonymous Access is denied thus HTTP Basic Authentication is fully enabled");
}
if (HTTP_AUTH_DISABLED.equals(http)) {
httpBasicHandler = null;
} else {
final String realm = OsgiUtil.toString(properties.get(PAR_REALM_NAME), DEFAULT_REALM);
httpBasicHandler = new HttpBasicAuthenticationHandler(realm, HTTP_AUTH_ENABLED.equals(http));
}
}
@SuppressWarnings("unused")
@Deactivate
private void deactivate(final BundleContext bundleContext) {
if (engineAuthHandlerTracker != null) {
engineAuthHandlerTracker.close();
engineAuthHandlerTracker = null;
}
if (authHandlerTracker != null) {
authHandlerTracker.close();
authHandlerTracker = null;
}
if (serviceListener != null) {
bundleContext.removeServiceListener(serviceListener);
serviceListener = null;
}
if (webConsolePlugin != null) {
webConsolePlugin.unregister();
webConsolePlugin = null;
}
}
// --------- AuthenticationSupport interface
/**
* Checks the authentication contained in the request. This check is only
* based on the original request object, no URI translation has taken place
* yet.
* <p>
*
* @param request The request object containing the information for the
* authentication.
* @param response The response object which may be used to send the
* information on the request failure to the user.
* @return <code>true</code> if request processing should continue assuming
* successful authentication. If <code>false</code> is returned it
* is assumed a response has been sent to the client and the request
* is terminated.
*/
public boolean handleSecurity(HttpServletRequest request,
HttpServletResponse response) {
// 0. Nothing to do, if the session is also in the request
// this might be the case if the request is handled as a result
// of a servlet container include inside another Sling request
Object sessionAttr = request.getAttribute(REQUEST_ATTRIBUTE_RESOLVER);
if (sessionAttr instanceof ResourceResolver) {
log.debug("handleSecurity: Request already authenticated, nothing to do");
return true;
} else if (sessionAttr != null) {
// warn and remove existing non-session
log.warn("handleSecurity: Overwriting existing ResourceResolver attribute ({})", sessionAttr);
request.removeAttribute(REQUEST_ATTRIBUTE_RESOLVER);
}
boolean process = doHandleSecurity(request, response);
if (process && expectAuthenticationHandler(request)) {
log.warn("handleSecurity: AuthenticationHandler did not block request; access denied");
request.removeAttribute(AuthenticationHandler.FAILURE_REASON);
request.removeAttribute(AuthenticationHandler.FAILURE_REASON_CODE);
AuthUtil.sendInvalid(request, response);
return false;
}
return process;
}
private boolean doHandleSecurity(HttpServletRequest request, HttpServletResponse response) {
// 1. Ask all authentication handlers to try to extract credentials
final AuthenticationInfo authInfo = getAuthenticationInfo(request, response);
// 2. PostProcess credentials
try {
postProcess(authInfo, request, response);
} catch (LoginException e) {
handleLoginFailure(request, response, authInfo.getUser(), e);
return false;
}
// 3. Check Credentials
if (authInfo == AuthenticationInfo.DOING_AUTH) {
log.debug("doHandleSecurity: ongoing authentication in the handler");
return false;
} else if (authInfo == AuthenticationInfo.FAIL_AUTH) {
log.debug("doHandleSecurity: Credentials present but not valid, request authentication again");
AuthUtil.setLoginResourceAttribute(request, request.getRequestURI());
doLogin(request, response);
return false;
} else if (authInfo.getAuthType() == null) {
log.debug("doHandleSecurity: No credentials in the request, anonymous");
return getAnonymousResolver(request, response, authInfo);
} else {
log.debug("doHandleSecurity: Trying to get a session for {}", authInfo.getUser());
return getResolver(request, response, authInfo);
}
}
// ---------- Authenticator interface
/**
* Requests authentication information from the client. Returns
* <code>true</code> if the information has been requested and request
* processing can be terminated. Otherwise the request information could not
* be requested and the request should be terminated with a 403/FORBIDDEN
* response.
* <p>
* Any response sent by the handler is also handled by the error handler
* infrastructure.
*
* @param request The request object
* @param response The response object to which to send the request
* @throws IllegalStateException If response is already committed
* @throws NoAuthenticationHandlerException If no authentication handler
* claims responsibility to authenticate the request.
*/
public void login(HttpServletRequest request, HttpServletResponse response) {
// ensure the response is not committed yet
if (response.isCommitted()) {
throw new IllegalStateException("Response already committed");
}
// select path used for authentication handler selection
final Collection<AbstractAuthenticationHandlerHolder>[] holdersArray = this.authHandlerCache
.findApplicableHolder(request);
final String path = getHandlerSelectionPath(request);
boolean done = false;
for (int m = 0; !done && m < holdersArray.length; m++) {
final Collection<AbstractAuthenticationHandlerHolder> holderList = holdersArray[m];
if ( holderList != null ) {
for (AbstractAuthenticationHandlerHolder holder : holderList) {
if (path.startsWith(holder.path)) {
log.debug("login: requesting authentication using handler: {}",
holder);
try {
done = holder.requestCredentials(request, response);
} catch (IOException ioe) {
log.error(
"login: Failed sending authentication request through handler "
+ holder + ", access forbidden", ioe);
done = true;
}
}
}
}
}
// fall back to HTTP Basic handler (if not done already)
if (!done && httpBasicHandler != null) {
done = httpBasicHandler.requestCredentials(request, response);
}
// no handler could send an authentication request, throw
if (!done) {
int size = 0;
for (int m = 0; m < holdersArray.length; m++) {
if (holdersArray[m] != null) {
size += holdersArray[m].size();
}
}
log.info("login: No handler for request ({} handlers available)", size);
throw new NoAuthenticationHandlerException();
}
}
/**
* Logs out the user calling all applicable
* {@link org.apache.sling.auth.core.spi.AuthenticationHandler}
* authentication handlers.
*/
public void logout(HttpServletRequest request, HttpServletResponse response) {
// ensure the response is not committed yet
if (response.isCommitted()) {
throw new IllegalStateException("Response already committed");
}
// make sure impersonation is dropped
setSudoCookie(request, response, new AuthenticationInfo("dummy", request.getRemoteUser()));
final String path = getHandlerSelectionPath(request);
final Collection<AbstractAuthenticationHandlerHolder>[] holdersArray = this.authHandlerCache
.findApplicableHolder(request);
for (int m = 0; m < holdersArray.length; m++) {
final Collection<AbstractAuthenticationHandlerHolder> holderSet = holdersArray[m];
if (holderSet != null) {
for (AbstractAuthenticationHandlerHolder holder : holderSet) {
if (path.startsWith(holder.path)) {
log.debug("logout: dropping authentication using handler: {}",
holder);
try {
holder.dropCredentials(request, response);
} catch (IOException ioe) {
log.error(
"logout: Failed dropping authentication through handler "
+ holder, ioe);
}
}
}
}
}
if (httpBasicHandler != null) {
httpBasicHandler.dropCredentials(request, response);
}
redirectAfterLogout(request, response);
}
// ---------- ServletRequestListener
public void requestInitialized(ServletRequestEvent sre) {
// don't care
}
public void requestDestroyed(ServletRequestEvent sre) {
ServletRequest request = sre.getServletRequest();
Object resolverAttr = request.getAttribute(REQUEST_ATTRIBUTE_RESOLVER);
if (resolverAttr instanceof ResourceResolver) {
((ResourceResolver) resolverAttr).close();
request.removeAttribute(REQUEST_ATTRIBUTE_RESOLVER);
}
}
// ---------- WebConsolePlugin support
/**
* Returns the list of registered authentication handlers as a map
*/
Map<String, List<String>> getAuthenticationHandler() {
List<AbstractAuthenticationHandlerHolder> registeredHolders = authHandlerCache.getHolders();
LinkedHashMap<String, List<String>> handlerMap = new LinkedHashMap<String, List<String>>();
for (AbstractAuthenticationHandlerHolder holder : registeredHolders) {
List<String> provider = handlerMap.get(holder.fullPath);
if (provider == null) {
provider = new ArrayList<String>();
handlerMap.put(holder.fullPath, provider);
}
provider.add(holder.getProvider());
}
if (httpBasicHandler != null) {
List<String> provider = handlerMap.get("/");
if (provider == null) {
provider = new ArrayList<String>();
handlerMap.put("/", provider);
}
provider.add(httpBasicHandler.toString());
}
return handlerMap;
}
List<AuthenticationRequirementHolder> getAuthenticationRequirements() {
return authRequiredCache.getHolders();
}
/**
* Returns the name of the user to assume for requests without credentials.
* This may be <code>null</code> if not configured and the default anonymous
* user is to be used.
* <p>
* The configured password cannot be requested.
*/
String getAnonUserName() {
return anonUser;
}
String getSudoCookieName() {
return sudoCookieName;
}
String getSudoParameterName() {
return sudoParameterName;
}
// ---------- internal
private String getPath(HttpServletRequest request) {
final StringBuilder sb = new StringBuilder();
if (request.getServletPath() != null) {
sb.append(request.getServletPath());
}
if (request.getPathInfo() != null) {
sb.append(request.getPathInfo());
}
return sb.toString();
}
private AuthenticationInfo getAuthenticationInfo(HttpServletRequest request, HttpServletResponse response) {
// Get the path used to select the authenticator, if the SlingServlet
// itself has been requested without any more info, this will be empty
// and we assume the root (SLING-722)
String path = getPath(request);
if (path.length() == 0) {
path = "/";
}
final Collection<AbstractAuthenticationHandlerHolder>[] localArray = this.authHandlerCache
.findApplicableHolder(request);
for (int m = 0; m < localArray.length; m++) {
final Collection<AbstractAuthenticationHandlerHolder> local = localArray[m];
if (local != null) {
for (AbstractAuthenticationHandlerHolder holder : local) {
if (path.startsWith(holder.path)) {
final AuthenticationInfo authInfo = holder.extractCredentials(
request, response);
if (authInfo != null) {
// add the feedback handler to the info (may be null)
authInfo.put(AUTH_INFO_PROP_FEEDBACK_HANDLER,
holder.getFeedbackHandler());
return authInfo;
}
}
}
}
}
// check whether the HTTP Basic handler can extract the header
if (httpBasicHandler != null) {
final AuthenticationInfo authInfo = httpBasicHandler.extractCredentials(
request, response);
if (authInfo != null) {
authInfo.put(AUTH_INFO_PROP_FEEDBACK_HANDLER, httpBasicHandler);
return authInfo;
}
}
// no handler found for the request ....
log.debug("getAuthenticationInfo: no handler could extract credentials; assuming anonymous");
return getAnonymousCredentials();
}
/**
* Run through the available post processors.
*/
private void postProcess(AuthenticationInfo info, HttpServletRequest request, HttpServletResponse response)
throws LoginException {
Object[] services = authInfoPostProcessorTracker.getServices();
if (services != null) {
for (Object serviceObj : services) {
((AuthenticationInfoPostProcessor)serviceObj).postProcess(info, request, response);
}
}
}
/**
* Try to acquire a ResourceResolver as indicated by authInfo
*
* @return <code>true</code> if request processing should continue assuming
* successful authentication. If <code>false</code> is returned it
* is assumed a response has been sent to the client and the request
* is terminated.
*/
private boolean getResolver(final HttpServletRequest request,
final HttpServletResponse response,
final AuthenticationInfo authInfo) {
// prepare the feedback handler
final AuthenticationFeedbackHandler feedbackHandler = (AuthenticationFeedbackHandler) authInfo.remove(AUTH_INFO_PROP_FEEDBACK_HANDLER);
final Object sendLoginEvent = authInfo.remove(AuthConstants.AUTH_INFO_LOGIN);
// try to connect
try {
handleImpersonation(request, authInfo);
handlePasswordChange(request, authInfo);
ResourceResolver resolver = resourceResolverFactory.getResourceResolver(authInfo);
final boolean impersChanged = setSudoCookie(request, response, authInfo);
if (sendLoginEvent != null) {
postLoginEvent(authInfo);
}
// provide the resource resolver to the feedback handler
request.setAttribute(REQUEST_ATTRIBUTE_RESOLVER, resolver);
boolean processRequest = true;
// custom feedback handler with option to redirect
if (feedbackHandler != null) {
processRequest = !feedbackHandler.authenticationSucceeded(request, response, authInfo);
}
if (processRequest) {
if (AuthUtil.isValidateRequest(request)) {
AuthUtil.sendValid(response);
processRequest = false;
} else if (impersChanged || feedbackHandler == null) {
processRequest = !DefaultAuthenticationFeedbackHandler.handleRedirect(request, response);
}
}
if (processRequest) {
// process: set required attributes
setAttributes(resolver, authInfo.getAuthType(), request);
} else {
// terminate: cleanup
resolver.close();
}
return processRequest;
} catch (LoginException re) {
// handle failure feedback before proceeding to handling the
// failed login internally
if (feedbackHandler != null) {
feedbackHandler.authenticationFailed(request, response,
authInfo);
}
// now find a way to get credentials unless the feedback handler
// has committed a response to the client already
if (!response.isCommitted()) {
handleLoginFailure(request, response, authInfo.getUser(), re);
}
}
// end request
return false;
}
private boolean expectAuthenticationHandler(final HttpServletRequest request) {
if (this.authUriSuffices != null) {
final String requestUri = request.getRequestURI();
for (final String uriSuffix : this.authUriSuffices) {
if (requestUri.endsWith(uriSuffix)) {
return true;
}
}
}
return false;
}
/** Try to acquire an anonymous ResourceResolver */
private boolean getAnonymousResolver(final HttpServletRequest request,
final HttpServletResponse response, final AuthenticationInfo authInfo) {
// Get an anonymous session if allowed, or if we are handling
// a request for the login servlet
if (isAnonAllowed(request)) {
try {
ResourceResolver resolver = resourceResolverFactory.getResourceResolver(authInfo);
// check whether the client asked for redirect after
// authentication and/or impersonation
if (DefaultAuthenticationFeedbackHandler.handleRedirect(
request, response)) {
// request will now be terminated, so close the resolver
// to release resources
resolver.close();
return false;
}
// set the attributes for further processing
setAttributes(resolver, null, request);
return true;
} catch (LoginException re) {
// cannot login > fail login, do not try to authenticate
handleLoginFailure(request, response, "anonymous user", re);
return false;
}
}
// If we get here, anonymous access is not allowed: redirect
// to the login servlet
log.info("getAnonymousResolver: Anonymous access not allowed by configuration - requesting credentials");
doLogin(request, response);
// fallback to no session
return false;
}
private boolean isAnonAllowed(HttpServletRequest request) {
final String path = getPath(request);
if (path.length() == 0) {
return false;
}
final Collection<AuthenticationRequirementHolder>[] holderSetArray = authRequiredCache
.findApplicableHolder(request);
for (int m = 0; m < holderSetArray.length; m++) {
final Collection<AuthenticationRequirementHolder> holders = holderSetArray[m];
if (holders != null) {
for (AuthenticationRequirementHolder holder : holders) {
if (path.startsWith(holder.path)) {
return !holder.requiresAuthentication();
}
}
}
}
// fallback to anonymous not allowed (aka authentication required)
return false;
}
/**
* Returns credentials to use for anonymous resource access. If an anonymous
* user is configued, this returns an {@link AuthenticationInfo} instance
* whose authentication type is <code>null</code> and the user name and
* password are set according to the {@link #PAR_ANONYMOUS_USER} and
* {@link #PAR_ANONYMOUS_PASSWORD} configurations. Otherwise
* the user name and password fields are just <code>null</code>.
*/
private AuthenticationInfo getAnonymousCredentials() {
AuthenticationInfo info = new AuthenticationInfo(null);
if (this.anonUser != null) {
info.setUser(this.anonUser);
info.setPassword(this.anonPassword);
}
return info;
}
private void handleLoginFailure(final HttpServletRequest request,
final HttpServletResponse response, final String user,
final Exception reason) {
if (reason.getClass().getName().contains("TooManySessionsException")) {
// to many users, send a 503 Service Unavailable
log.info("handleLoginFailure: Too many sessions for {}: {}", user,
reason.getMessage());
try {
response.sendError(HttpServletResponse.SC_SERVICE_UNAVAILABLE,
"SlingAuthenticator: Too Many Users");
} catch (IOException ioe) {
log.error(
"handleLoginFailure: Cannot send status 503 to client", ioe);
}
} else if (reason instanceof LoginException) {
// request authentication information and send 403 (Forbidden)
// if no handler can request authentication information.
log.info("handleLoginFailure: Unable to authenticate {}: {}", user,
reason.getMessage());
if (reason.getCause() instanceof CredentialExpiredException) {
// force failure attribute to be set so handlers can
// react to this special circumstance
request.setAttribute(AuthenticationHandler.FAILURE_REASON_CODE,
AuthenticationHandler.FAILURE_REASON_CODES.PASSWORD_EXPIRED);
ensureAttribute(request, AuthenticationHandler.FAILURE_REASON,
"Password expired");
} else {
// preset a reason for the login failure (if not done already)
request.setAttribute(AuthenticationHandler.FAILURE_REASON_CODE,
AuthenticationHandler.FAILURE_REASON_CODES.INVALID_LOGIN);
ensureAttribute(request, AuthenticationHandler.FAILURE_REASON,
"User name and password do not match");
}
doLogin(request, response);
} else {
// general problem, send a 500 Internal Server Error
log.error("handleLoginFailure: Unable to authenticate " + user,
reason);
try {
response.sendError(
HttpServletResponse.SC_INTERNAL_SERVER_ERROR,
"SlingAuthenticator: data access error, reason="
+ reason.getClass().getSimpleName());
} catch (IOException ioe) {
log.error(
"handleLoginFailure: Cannot send status 500 to client", ioe);
}
}
}
/**
* Tries to request credentials from the client. The following mechanisms
* are implemented by this method:
* <ul>
* <li>If the request is a credentials validation request (see
* {@link AbstractAuthenticationHandler#isValidateRequest(HttpServletRequest)}
* ) a 403/FORBIDDEN response is sent back.</li>
* <li>If the request is not considered a
* {@link #isBrowserRequest(HttpServletRequest) browser request} and the
* HTTP Basic Authentication Handler is at least enabled for preemptive
* credentials processing, a 401/UNAUTHORIZED response is sent back. This
* helps implementing HTTP Basic authentication with WebDAV clients. If HTTP
* Basic Authentication is completely switched of a 403/FORBIDDEN response
* is sent back instead.</li>
* <li>If the request is considered an
* {@link #isAjaxRequest(HttpServletRequest) Ajax request} a 403/FORBIDDEN
* response is simply sent back because we assume an Ajax requestor cannot
* properly handle any request for credentials graciously.</li>
* <li>Otherwise the {@link #login(HttpServletRequest, HttpServletResponse)}
* method is called to try to find and call an authentication handler to
* request credentials from the client. If none is available or willing to
* request credentials, a 403/FORBIDDEN response is also sent back to the
* client.</li>
* </ul>
* <p>
* If a 403/FORBIDDEN response is sent back the {@link AbstractAuthenticationHandler#X_REASON} header is
* set to a either the value of the
* {@link AuthenticationHandler#FAILURE_REASON} request attribute or to some
* generic description describing the reason. To actually send the response
* the
* {@link AbstractAuthenticationHandler#sendInvalid(HttpServletRequest, HttpServletResponse)}
* method is called.
* <p>
* This method is called in three situations:
* <ul>
* <li>If the request contains no credentials but anonymous login is not
* allowed</li>
* <li>If the request contains credentials but getting the Resource Resolver
* using the provided credentials fails</li>
* <li>If the selected authentication handler indicated any presented
* credentials are not valid</li>
* </ul>
*
* @param request The current request
* @param response The response to send the credentials request (or access
* denial to)
* @see AbstractAuthenticationHandler#isValidateRequest(HttpServletRequest)
* @see #isBrowserRequest(HttpServletRequest)
* @see #isAjaxRequest(HttpServletRequest)
* @see AbstractAuthenticationHandler#sendInvalid(HttpServletRequest,
* HttpServletResponse)
*/
private void doLogin(HttpServletRequest request,
HttpServletResponse response) {
if (!AuthUtil.isValidateRequest(request)) {
if (AuthUtil.isBrowserRequest(request)) {
if (!AuthUtil.isAjaxRequest(request) && !isLoginLoop(request)) {
try {
login(request, response);
return;
} catch (IllegalStateException ise) {
log.error("doLogin: Cannot login: Response already committed");
return;
} catch (NoAuthenticationHandlerException nahe) {
/*
* Don't set the failureReason for missing
* authentication handlers to not disclose this setup
* information.
*/
log.error("doLogin: Cannot login: No AuthenticationHandler available to handle the request");
}
}
} else {
// Presumably this is WebDAV. If HTTP Basic is fully enabled or
// enabled for preemptive credential support, we just request
// HTTP Basic credentials. Otherwise (HTTP Basic is fully
// switched off, 403 is sent back)
if (httpBasicHandler != null) {
httpBasicHandler.sendUnauthorized(response);
return;
}
}
}
// if we are here, we cannot redirect to the login form because it is
// an XHR request or because there is no authentication handler willing
// request credentials from the client or because it is a failed
// credential validation
// ensure a failure reason
ensureAttribute(request, AuthenticationHandler.FAILURE_REASON,
"Authentication Failed");
AuthUtil.sendInvalid(request, response);
}
/**
* Returns <code>true</code> if the current request was referred to by the
* same URL as the current request has. This is assumed to be caused by a
* loop in requesting credentials from the client. Such a loop will probably
* never cause the request for credentials to succeed, so it must be broken.
*
* @param request The request to check
* @return <code>true</code> if the request is considered to be a loop;
* <code>false</code> otherwise
*/
private boolean isLoginLoop(final HttpServletRequest request) {
String referer = request.getHeader("Referer");
if (referer != null) {
StringBuffer sb = request.getRequestURL();
if (request.getQueryString() != null) {
sb.append('?').append(request.getQueryString());
}
return referer.equals(sb.toString());
}
// no referer means no loop
return false;
}
/**
* Sets the name request attribute to the given value unless the request
* attribute is already set a non-<code>null</code> value.
*
* @param request The request on which to set the attribute
* @param attribute The name of the attribute to check/set
* @param value The value to set the attribute to if it is not already set
*/
private void ensureAttribute(final HttpServletRequest request,
final String attribute, final Object value) {
if (request.getAttribute(attribute) == null) {
request.setAttribute(attribute, value);
}
}
/**
* Sets the request attributes required by the OSGi HttpContext interface
* specification for the <code>handleSecurity</code> method. In addition the
* {@link SlingAuthenticator#REQUEST_ATTRIBUTE_RESOLVER} request attribute
* is set to the ResourceResolver.
*/
private void setAttributes(final ResourceResolver resolver, final String authType,
final HttpServletRequest request) {
// HttpService API required attributes
request.setAttribute(HttpContext.REMOTE_USER, resolver.getUserID());
request.setAttribute(HttpContext.AUTHENTICATION_TYPE, authType);
// resource resolver for down-stream use
request.setAttribute(REQUEST_ATTRIBUTE_RESOLVER, resolver);
log.debug(
"setAttributes: ResourceResolver stored as request attribute: user={}",
resolver.getUserID());
}
/**
* Sends the session cookie for the name session with the given age in
* seconds. This sends a Version 1 cookie.
*
* @param response The {@link HttpServletResponse} on which to send
* back the cookie.
* @param user The name of the user to impersonate as. This will be quoted
* and used as the cookie value.
* @param maxAge The maximum age of the cookie in seconds. Positive values
* are persisted on the browser for the indicated number of
* seconds, setting the age to 0 (zero) causes the cookie to be
* deleted in the browser and using a negative value defines a
* temporary cookie to be deleted when the browser exits.
* @param path The cookie path to use. This is intended to be the web
* application's context path. If this is empty or
* <code>null</code> the root path will be used assuming the web
* application is registered at the root context.
* @param owner The name of the user originally authenticated in the request
* and who is now impersonating as <i>user</i>.
*/
private void sendSudoCookie(HttpServletResponse response,
final String user, final int maxAge, final String path,
final String owner) {
final String quotedUser;
try {
quotedUser = quoteCookieValue(user);
} catch (IllegalArgumentException iae) {
log.error(
"sendSudoCookie: Failed to quote value '{}' of cookie {}: {}",
new Object[] { user, this.sudoCookieName, iae.getMessage() });
return;
}
if (quotedUser != null) {
Cookie cookie = new Cookie(this.sudoCookieName, quotedUser);
cookie.setMaxAge(maxAge);
cookie.setPath((path == null || path.length() == 0) ? "/" : path);
try {
cookie.setComment(owner + " impersonates as " + user);
} catch (IllegalArgumentException iae) {
// ignore
}
response.addCookie(cookie);
// Tell a potential proxy server that this request is uncacheable
// due to the Set-Cookie header being sent
if (this.cacheControl) {
response.addHeader("Cache-Control", "no-cache=\"Set-Cookie\"");
}
}
}
/**
* Handles impersonation based on the request parameter for impersonation
* (see {@link #sudoParameterName}) and the current setting in the sudo
* cookie.
* <p>
* If the sudo parameter is empty or missing, the current cookie setting for
* impersonation is used. Else if the parameter is <code>-</code>, the
* current cookie impersonation is removed and no impersonation will take
* place for this request. Else the parameter is assumed to contain the name
* of a user to impersonate as.
*
* @param req The {@link HttpServletRequest} optionally containing
* the sudo parameter.
* @param authInfo The authentication info into which the
* <code>sudo.user.id</code> property is set to the impersonator
* user.
*/
private void handleImpersonation(HttpServletRequest req,
AuthenticationInfo authInfo) {
String currentSudo = getSudoCookieValue(req);
/**
* sudo parameter : empty or missing to continue to use the setting
* already stored in the session; or "-" to remove impersonation
* altogether (also from the session); or the handle of a user page to
* impersonate as that user (if possible)
*/
String sudo = req.getParameter(this.sudoParameterName);
if (sudo == null || sudo.length() == 0) {
sudo = currentSudo;
} else if ("-".equals(sudo)) {
sudo = null;
}
// sudo the session if needed
if (sudo != null && sudo.length() > 0) {
authInfo.put(ResourceResolverFactory.USER_IMPERSONATION, sudo);
}
}
/**
* Handles password change based on the request parameter for the new password
* (see {@link #newPasswordParameterName}).
* <p>
* If the new password request parameter is present, it is added to the authInfo
* object, which is later transformed to SimpleCredentials attributes.
*
* @param req The {@link HttpServletRequest} optionally containing
* the new password parameter.
* @param authInfo The authentication info into which the
* <code>newPassword</code> property is set.
*/
private void handlePasswordChange(HttpServletRequest req, AuthenticationInfo authInfo) {
String newPassword = req.getParameter(this.newPasswordParameterName);
if (newPassword != null && newPassword.length() > 0) {
authInfo.put("user.newpassword", newPassword);
}
}
private String getSudoCookieValue(HttpServletRequest req) {
// the current state of impersonation
String currentSudo = null;
Cookie[] cookies = req.getCookies();
if (cookies != null) {
for (int i = 0; currentSudo == null && i < cookies.length; i++) {
if (sudoCookieName.equals(cookies[i].getName())) {
currentSudo = unquoteCookieValue(cookies[i].getValue());
}
}
}
return currentSudo;
}
/**
* Sets the impersonation cookie on the response if impersonation actually
* changed and returns whether the cookie has been set (or cleared) or not.
* <p>
* The current impersonation state is taken from the sudo cookie value
* while the desired state is taken from the user.impersonation
* property of the auth info. If they don't match, the sudo cookie
* is set according to the user.impersonation property where the
* cookie is actually cleared if the property is <code>null</code>.
*
* @param req Providing the current sudo cookie value
* @param res For setting the sudo cookie
* @param authInfo Providing information about desired impersonation
* @return <code>true</code> if the cookie has been set or cleared or
* <code>false</code> if the cookie is not modified.
*/
private boolean setSudoCookie(HttpServletRequest req,
HttpServletResponse res, AuthenticationInfo authInfo) {
String sudo = (String) authInfo.get(ResourceResolverFactory.USER_IMPERSONATION);
String currentSudo = getSudoCookieValue(req);
// set the (new) impersonation
final boolean setCookie = sudo != currentSudo;
if (setCookie) {
if (sudo == null) {
// Parameter set to "-" to clear impersonation, which was
// active due to cookie setting
// clear impersonation
this.sendSudoCookie(res, "", 0, req.getContextPath(), authInfo.getUser());
} else if (currentSudo == null || !currentSudo.equals(sudo)) {
// Parameter set to a name. As the cookie is not set yet
// or is set to another name, send the cookie with current sudo
// (re-)set impersonation
this.sendSudoCookie(res, sudo, -1, req.getContextPath(),
sudo);
}
}
return setCookie;
}
/**
* Returns the path to be used to select the authentication handler to login
* or logout with.
* <p>
* This method uses the {@link Authenticator#LOGIN_RESOURCE} request
* attribute. If this attribute is not set (or is not a string), the request
* path info is used. If this is not set either, or is the empty string, "/"
* is returned.
*
* @param request The request providing the request attribute or path info.
* @return The path as set by the request attribute or the path info or "/"
* if neither is set.
*/
private String getHandlerSelectionPath(HttpServletRequest request) {
final Object loginPathO = request.getAttribute(Authenticator.LOGIN_RESOURCE);
String path;
if (loginPathO instanceof String) {
path = (String) loginPathO;
final String ctxPath = request.getContextPath();
if (ctxPath != null && path.startsWith(ctxPath)) {
path = path.substring(ctxPath.length());
}
} else {
path = request.getPathInfo();
}
if (path == null || path.length() == 0) {
path = "/";
}
return path;
}
/**
* If the response has not been committed yet, redirect to target requested
* by the <code>resource</code> request attribute or parameter. If neither
* is set to a non-null string, the request is redirected to the context
* root.
* <p>
* The response is not reset though, since the handler may have set states
* such as an updated HTTP session or some Cookie
*
* @param request The request providing the redirect target
* @param response The response to send the redirect to
*/
private void redirectAfterLogout(final HttpServletRequest request,
final HttpServletResponse response) {
// nothing more to do if the response has already been committed
if (response.isCommitted()) {
log.debug("redirectAfterLogout: Response has already been committed, not redirecting");
return;
}
// find the redirect target from the resource attribute or parameter
// falling back to the request context path (or /) if not set or invalid
String target = AuthUtil.getLoginResource(request, request.getContextPath());
if (!AuthUtil.isRedirectValid(request, target)) {
log.warn("redirectAfterLogout: Desired redirect target '{}' is invalid; redirecting to '/'", target);
target = "/";
}
// redirect to there
try {
response.sendRedirect(request.getContextPath() + target);
} catch (IOException e) {
log.error("Failed to redirect to the page: " + target, e);
}
}
private void postLoginEvent(final AuthenticationInfo authInfo) {
final Dictionary<String, Object> properties = new Hashtable<String, Object>();
properties.put(SlingConstants.PROPERTY_USERID, authInfo.getUser());
properties.put(AuthenticationInfo.AUTH_TYPE, authInfo.getAuthType());
EventAdmin localEA = this.eventAdmin;
if (localEA != null) {
localEA.postEvent(new Event(AuthConstants.TOPIC_LOGIN, properties));
}
}
/**
* Ensures the cookie value is properly quoted for transmission to the
* client.
* <p>
* The problem is, that the character set of cookie values is limited by
* RFC 2109 defining that a cookie value must be token or quoted-string
* according to RFC-2616:
* <pre>
* token = 1*<any CHAR except CTLs or separators>
* separators = "(" | ")" | "<" | ">" | "@"
* | "," | ";" | ":" | "\" | <">
* | "/" | "[" | "]" | "?" | "="
* | "{" | "}" | SP | HT
*
* quoted-string = ( <"> *(qdtext | quoted-pair ) <"> )
* qdtext = <any TEXT except <">>
* quoted-pair = "\" CHAR
*
* @param value The cookie value to quote
* @return The quoted cookie value
* @throws IllegalArgumentException If the cookie value is <code>null</code>
* or cannot be quoted, primarily because it contains a quote
* sign.
*/
static String quoteCookieValue(final String value) {
// method is package private to enable unit testing
if (value == null) {
throw new IllegalArgumentException("Cookie value may not be null");
}
StringBuilder builder = new StringBuilder(value.length() * 2);
builder.append('"');
for (int i = 0; i < value.length(); i++) {
char c = value.charAt(i);
if (c == '"') {
builder.append("\\\"");
} else if (c == 127 || (c < 32 && c != '\t')) {
throw new IllegalArgumentException(
"Cookie value may not contain CTL character");
} else {
builder.append(c);
}
}
builder.append('"');
return builder.toString();
}
/**
* Removes (optional) quotes from a cookie value to get the raw value of the
* cookie.
*
* @param value The cookie value to unquote
* @return The unquoted cookie value
*/
static String unquoteCookieValue(final String value) {
// method is package private to enable unit testing
// return value unmodified if null, empty or not starting with a quote
if (value == null || value.length() == 0 || value.charAt(0) != '"') {
return value;
}
StringBuilder builder = new StringBuilder(value.length());
for (int i = 1; i < value.length() - 1; i++) {
char c = value.charAt(i);
if (c != '\\') {
builder.append(c);
}
}
return builder.toString();
}
private static class SlingAuthenticatorServiceListener implements
AllServiceListener {
private final SlingAuthenticator authenticator;
private final HashMap<Object, AuthenticationRequirementHolder[]> props = new HashMap<Object, AuthenticationRequirementHolder[]>();
static SlingAuthenticatorServiceListener createListener(
final BundleContext context,
final SlingAuthenticator authenticator) {
SlingAuthenticatorServiceListener listener = new SlingAuthenticatorServiceListener(
authenticator);
try {
final String filter = "(" + AuthConstants.AUTH_REQUIREMENTS + "=*)";
context.addServiceListener(listener, filter);
ServiceReference[] refs = context.getAllServiceReferences(null,
filter);
if (refs != null) {
for (ServiceReference ref : refs) {
listener.addService(ref);
}
}
return listener;
} catch (InvalidSyntaxException ise) {
}
return null;
}
private SlingAuthenticatorServiceListener(
final SlingAuthenticator authenticator) {
this.authenticator = authenticator;
}
public void serviceChanged(final ServiceEvent event) {
synchronized ( props ) {
// modification of service properties, unregistration of the
// service or service properties does not contain requirements
// property any longer (new event with type 8 added in OSGi Core
// 4.2)
if ((event.getType() & (ServiceEvent.MODIFIED
| ServiceEvent.UNREGISTERING | 8)) != 0) {
removeService(event.getServiceReference());
}
// add requirements for newly registered services and for
// updated services
if ((event.getType() & (ServiceEvent.REGISTERED | ServiceEvent.MODIFIED)) != 0) {
addService(event.getServiceReference());
}
}
}
void registerServices() {
AuthenticationRequirementHolder[][] authReqsList;
authReqsList = props.values().toArray(new AuthenticationRequirementHolder[props.size()][]);
for (AuthenticationRequirementHolder[] authReqs : authReqsList) {
registerService(authReqs);
}
}
private void registerService(
final AuthenticationRequirementHolder[] authReqs) {
for (AuthenticationRequirementHolder authReq : authReqs) {
authenticator.authRequiredCache.addHolder(authReq);
}
}
private void addService(final ServiceReference ref) {
final String[] authReqPaths = OsgiUtil.toStringArray(ref.getProperty(PAR_AUTH_REQ));
ArrayList<AuthenticationRequirementHolder> authReqList = new ArrayList<AuthenticationRequirementHolder>();
for (String authReq : authReqPaths) {
if (authReq != null && authReq.length() > 0) {
authReqList.add(AuthenticationRequirementHolder.fromConfig(
authReq, ref));
}
}
final AuthenticationRequirementHolder[] authReqs = authReqList.toArray(new AuthenticationRequirementHolder[authReqList.size()]);
registerService(authReqs);
props.put(ref.getProperty(Constants.SERVICE_ID), authReqs);
}
private void removeService(final ServiceReference ref) {
final AuthenticationRequirementHolder[] authReqs = props.remove(ref.getProperty(Constants.SERVICE_ID));
if (authReqs != null) {
for (AuthenticationRequirementHolder authReq : authReqs) {
authenticator.authRequiredCache.removeHolder(authReq);
}
}
}
}
private static class AuthenticationHandlerTracker extends ServiceTracker {
private final PathBasedHolderCache<AbstractAuthenticationHandlerHolder> authHandlerCache;
private final HashMap<Object, AbstractAuthenticationHandlerHolder[]> handlerMap = new HashMap<Object, AbstractAuthenticationHandlerHolder[]>();
AuthenticationHandlerTracker(
final BundleContext context,
final PathBasedHolderCache<AbstractAuthenticationHandlerHolder> authHandlerCache) {
this(context, AuthenticationHandler.SERVICE_NAME, authHandlerCache);
}
protected AuthenticationHandlerTracker(
final BundleContext context,
final String className,
final PathBasedHolderCache<AbstractAuthenticationHandlerHolder> authHandlerCache) {
super(context, className, null);
this.authHandlerCache = authHandlerCache;
open();
}
@Override
public Object addingService(ServiceReference reference) {
final Object service = super.addingService(reference);
if (service != null) {
bindAuthHandler(service, reference);
}
return service;
}
@Override
public void modifiedService(ServiceReference reference, Object service) {
unbindAuthHandler(reference);
if (service != null) {
bindAuthHandler(service, reference);
}
}
@Override
public void removedService(ServiceReference reference, Object service) {
unbindAuthHandler(reference);
super.removedService(reference, service);
}
protected AbstractAuthenticationHandlerHolder createHolder(
final String path, final Object handler,
final ServiceReference serviceReference) {
return new AuthenticationHandlerHolder(path,
(AuthenticationHandler) handler, serviceReference);
}
private void bindAuthHandler(final Object handler, final ServiceReference ref) {
final String paths[] = OsgiUtil.toStringArray(ref.getProperty(AuthenticationHandler.PATH_PROPERTY));
if (paths != null && paths.length > 0) {
// generate the holders
ArrayList<AbstractAuthenticationHandlerHolder> holderList = new ArrayList<AbstractAuthenticationHandlerHolder>();
for (String path : paths) {
if (path != null && path.length() > 0) {
holderList.add(createHolder(path, handler, ref));
}
}
// register the holders
AbstractAuthenticationHandlerHolder[] holders = holderList.toArray(new AbstractAuthenticationHandlerHolder[holderList.size()]);
for (AbstractAuthenticationHandlerHolder holder : holders) {
authHandlerCache.addHolder(holder);
}
// keep a copy of them for unregistration later
synchronized (handlerMap) {
handlerMap.put(ref.getProperty(Constants.SERVICE_ID),
holders);
}
}
}
private void unbindAuthHandler(ServiceReference ref) {
final AbstractAuthenticationHandlerHolder[] holders;
synchronized (handlerMap) {
holders = handlerMap.remove(ref.getProperty(Constants.SERVICE_ID));
}
if (holders != null) {
for (AbstractAuthenticationHandlerHolder holder : holders) {
authHandlerCache.removeHolder(holder);
}
}
}
}
private static class EngineAuthenticationHandlerTracker extends
AuthenticationHandlerTracker {
EngineAuthenticationHandlerTracker(
final BundleContext context,
final PathBasedHolderCache<AbstractAuthenticationHandlerHolder> authHandlerCache) {
super(context,
"org.apache.sling.engine.auth.AuthenticationHandler",
authHandlerCache);
}
@SuppressWarnings("deprecation")
@Override
protected AbstractAuthenticationHandlerHolder createHolder(String path,
Object handler, final ServiceReference serviceReference) {
return new EngineAuthenticationHandlerHolder(path,
(org.apache.sling.engine.auth.AuthenticationHandler) handler,
serviceReference);
}
}
}