hadoop MultiSchemeAuthenticationHandler 源码
haddop MultiSchemeAuthenticationHandler 代码
文件路径:/hadoop-common-project/hadoop-auth/src/main/java/org/apache/hadoop/security/authentication/server/MultiSchemeAuthenticationHandler.java
/**
* Licensed 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. See accompanying LICENSE file.
*/
package org.apache.hadoop.security.authentication.server;
import java.io.IOException;
import java.util.Collection;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Properties;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.hadoop.classification.InterfaceAudience;
import org.apache.hadoop.classification.InterfaceStability;
import org.apache.hadoop.security.authentication.client.AuthenticationException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.apache.hadoop.thirdparty.com.google.common.base.Splitter;
/**
* The {@link MultiSchemeAuthenticationHandler} supports configuring multiple
* authentication mechanisms simultaneously. e.g. server can support multiple
* authentication mechanisms such as Kerberos (SPENGO) and LDAP. During the
* authentication phase, server will specify all possible authentication schemes
* and let client choose the appropriate scheme. Please refer to RFC-2616 and
* HADOOP-12082 for more details.
* <p>
* The supported configuration properties are:
* <ul>
* <li>multi-scheme-auth-handler.schemes: A comma separated list of HTTP
* authentication mechanisms supported by this handler. It does not have a
* default value. e.g. multi-scheme-auth-handler.schemes=basic,negotiate
* <li>multi-scheme-auth-handler.schemes.${scheme-name}.handler: The
* authentication handler implementation to be used for the specified
* authentication scheme. It does not have a default value. e.g.
* multi-scheme-auth-handler.schemes.negotiate.handler=kerberos
* </ul>
*
* It expected that for every authentication scheme specified in
* multi-scheme-auth-handler.schemes property, a handler needs to be configured.
* Note that while scheme values in 'multi-scheme-auth-handler.schemes' property
* are case-insensitive, the scheme value in the handler configuration property
* name must be lower case. i.e. property name such as
* multi-scheme-auth-handler.schemes.Negotiate.handler is invalid.
*/
@InterfaceAudience.Private
@InterfaceStability.Evolving
public class MultiSchemeAuthenticationHandler implements
CompositeAuthenticationHandler {
private static Logger logger = LoggerFactory
.getLogger(MultiSchemeAuthenticationHandler.class);
public static final String SCHEMES_PROPERTY =
"multi-scheme-auth-handler.schemes";
public static final String AUTH_HANDLER_PROPERTY =
"multi-scheme-auth-handler.schemes.%s.handler";
private static final Splitter STR_SPLITTER = Splitter.on(',').trimResults()
.omitEmptyStrings();
private final Map<String, AuthenticationHandler> schemeToAuthHandlerMapping =
new HashMap<>();
private final Collection<String> types = new HashSet<>();
private final String authType;
/**
* Constant that identifies the authentication mechanism.
*/
public static final String TYPE = "multi-scheme";
public MultiSchemeAuthenticationHandler() {
this(TYPE);
}
public MultiSchemeAuthenticationHandler(String authType) {
this.authType = authType;
}
@Override
public String getType() {
return authType;
}
/**
* This method returns the token types supported by this authentication
* handler.
*
* @return the token types supported by this authentication handler.
*/
@Override
public Collection<String> getTokenTypes() {
return types;
}
@Override
public void init(Properties config) throws ServletException {
// Useful for debugging purpose.
for (Map.Entry prop : config.entrySet()) {
logger.info("{} : {}", prop.getKey(), prop.getValue());
}
this.types.clear();
if (config.getProperty(SCHEMES_PROPERTY) == null) {
throw new NullPointerException(SCHEMES_PROPERTY + " system property is not specified.");
}
String schemesProperty = config.getProperty(SCHEMES_PROPERTY);
for (String scheme : STR_SPLITTER.split(schemesProperty)) {
scheme = AuthenticationHandlerUtil.checkAuthScheme(scheme);
if (schemeToAuthHandlerMapping.containsKey(scheme)) {
throw new IllegalArgumentException("Handler is already specified for "
+ scheme + " authentication scheme.");
}
String authHandlerPropName =
String.format(AUTH_HANDLER_PROPERTY, scheme).toLowerCase();
String authHandlerName = config.getProperty(authHandlerPropName);
if (authHandlerName == null) {
throw new NullPointerException(
"No auth handler configured for scheme " + scheme);
}
String authHandlerClassName =
AuthenticationHandlerUtil
.getAuthenticationHandlerClassName(authHandlerName);
AuthenticationHandler handler =
initializeAuthHandler(authHandlerClassName, config);
schemeToAuthHandlerMapping.put(scheme, handler);
types.add(handler.getType());
}
logger.info("Successfully initialized MultiSchemeAuthenticationHandler");
}
protected AuthenticationHandler initializeAuthHandler(
String authHandlerClassName, Properties config) throws ServletException {
try {
if (authHandlerClassName == null) {
throw new NullPointerException();
}
logger.debug("Initializing Authentication handler of type "
+ authHandlerClassName);
Class<?> klass =
Thread.currentThread().getContextClassLoader()
.loadClass(authHandlerClassName);
AuthenticationHandler authHandler =
(AuthenticationHandler) klass.newInstance();
authHandler.init(config);
logger.info("Successfully initialized Authentication handler of type "
+ authHandlerClassName);
return authHandler;
} catch (ClassNotFoundException | InstantiationException
| IllegalAccessException ex) {
logger.error("Failed to initialize authentication handler "
+ authHandlerClassName, ex);
throw new ServletException(ex);
}
}
@Override
public void destroy() {
for (AuthenticationHandler handler : schemeToAuthHandlerMapping.values()) {
handler.destroy();
}
}
@Override
public boolean managementOperation(AuthenticationToken token,
HttpServletRequest request, HttpServletResponse response)
throws IOException, AuthenticationException {
return true;
}
@Override
public AuthenticationToken authenticate(HttpServletRequest request,
HttpServletResponse response)
throws IOException, AuthenticationException {
String authorization =
request.getHeader(HttpConstants.AUTHORIZATION_HEADER);
if (authorization != null) {
for (Map.Entry<String, AuthenticationHandler> entry :
schemeToAuthHandlerMapping.entrySet()) {
if (AuthenticationHandlerUtil.matchAuthScheme(
entry.getKey(), authorization)) {
AuthenticationToken token =
entry.getValue().authenticate(request, response);
logger.trace("Token generated with type {}", token.getType());
return token;
}
}
}
// Handle the case when (authorization == null) or an invalid authorization
// header (e.g. a header value without the scheme name).
response.setStatus(HttpServletResponse.SC_UNAUTHORIZED);
for (String scheme : schemeToAuthHandlerMapping.keySet()) {
response.addHeader(HttpConstants.WWW_AUTHENTICATE_HEADER, scheme);
}
return null;
}
}
相关信息
相关文章
hadoop AltKerberosAuthenticationHandler 源码
hadoop AuthenticationFilter 源码
hadoop AuthenticationHandler 源码
hadoop AuthenticationHandlerUtil 源码
hadoop CompositeAuthenticationHandler 源码
hadoop JWTRedirectAuthenticationHandler 源码
0
赞
热门推荐
-
2、 - 优质文章
-
3、 gate.io
-
8、 golang
-
9、 openharmony
-
10、 Vue中input框自动聚焦