mirror of
https://github.com/scm-manager/scm-manager.git
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564 lines
14 KiB
Java
564 lines
14 KiB
Java
/**
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* Copyright (c) 2010, Sebastian Sdorra
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. Neither the name of SCM-Manager; nor the names of its
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* contributors may be used to endorse or promote products derived from this
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* software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* http://bitbucket.org/sdorra/scm-manager
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*
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*/
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package sonia.scm.security;
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//~--- non-JDK imports --------------------------------------------------------
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import com.google.common.base.Joiner;
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import com.google.common.collect.Sets;
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import com.google.inject.Inject;
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import com.google.inject.Provider;
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import com.google.inject.Singleton;
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import org.apache.shiro.authc.AccountException;
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import org.apache.shiro.authc.AuthenticationException;
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import org.apache.shiro.authc.AuthenticationInfo;
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import org.apache.shiro.authc.AuthenticationToken;
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import org.apache.shiro.authc.DisabledAccountException;
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import org.apache.shiro.authc.SimpleAuthenticationInfo;
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import org.apache.shiro.authc.UnknownAccountException;
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import org.apache.shiro.authc.UsernamePasswordToken;
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import org.apache.shiro.authc.pam.UnsupportedTokenException;
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import org.apache.shiro.authz.AuthorizationInfo;
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import org.apache.shiro.realm.AuthorizingRealm;
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import org.apache.shiro.subject.PrincipalCollection;
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import org.apache.shiro.subject.SimplePrincipalCollection;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import sonia.scm.HandlerEventType;
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import sonia.scm.config.ScmConfiguration;
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import sonia.scm.group.Group;
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import sonia.scm.group.GroupManager;
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import sonia.scm.group.GroupNames;
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import sonia.scm.repository.RepositoryManager;
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import sonia.scm.user.User;
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import sonia.scm.user.UserDAO;
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import sonia.scm.user.UserEventHack;
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import sonia.scm.user.UserException;
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import sonia.scm.user.UserManager;
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import sonia.scm.util.Util;
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import sonia.scm.web.security.AuthenticationManager;
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import sonia.scm.web.security.AuthenticationResult;
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import sonia.scm.web.security.AuthenticationState;
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//~--- JDK imports ------------------------------------------------------------
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import java.io.IOException;
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import java.util.Collection;
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import java.util.Set;
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import javax.servlet.http.HttpServletRequest;
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import javax.servlet.http.HttpServletResponse;
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/**
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*
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* @author Sebastian Sdorra
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*/
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@Singleton
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public class ScmRealm extends AuthorizingRealm
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{
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/** Field description */
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public static final String NAME = "scm";
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/** Field description */
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private static final String SCM_CREDENTIALS = "SCM_CREDENTIALS";
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/**
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* the logger for ScmRealm
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*/
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private static final Logger logger = LoggerFactory.getLogger(ScmRealm.class);
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//~--- constructors ---------------------------------------------------------
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/**
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* Constructs ...
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*
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* @param configuration
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* @param loginAttemptHandler
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* @param collector
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* @param userManager
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* @param groupManager
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* @param userDAO
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* @param authenticator
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* @param manager
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* @param requestProvider
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* @param responseProvider
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*/
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@Inject
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public ScmRealm(ScmConfiguration configuration,
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LoginAttemptHandler loginAttemptHandler, AuthorizationCollector collector,
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UserManager userManager, GroupManager groupManager, UserDAO userDAO,
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AuthenticationManager authenticator, RepositoryManager manager,
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Provider<HttpServletRequest> requestProvider,
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Provider<HttpServletResponse> responseProvider)
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{
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this.configuration = configuration;
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this.loginAttemptHandler = loginAttemptHandler;
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this.collector = collector;
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this.userManager = userManager;
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this.groupManager = groupManager;
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this.userDAO = userDAO;
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this.authenticator = authenticator;
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this.requestProvider = requestProvider;
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this.responseProvider = responseProvider;
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// set token class
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setAuthenticationTokenClass(UsernamePasswordToken.class);
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// use own custom caching
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setCachingEnabled(false);
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setAuthenticationCachingEnabled(false);
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setAuthorizationCachingEnabled(false);
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// set components
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setPermissionResolver(new RepositoryPermissionResolver());
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}
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//~--- methods --------------------------------------------------------------
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/**
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* Method description
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*
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*
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*
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* @param authToken
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*
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* @return
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*
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* @throws AuthenticationException
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*/
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@Override
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protected AuthenticationInfo doGetAuthenticationInfo(
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AuthenticationToken authToken)
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throws AuthenticationException
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{
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if (!(authToken instanceof UsernamePasswordToken))
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{
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throw new UnsupportedTokenException("ScmAuthenticationToken is required");
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}
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loginAttemptHandler.beforeAuthentication(authToken);
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UsernamePasswordToken token = (UsernamePasswordToken) authToken;
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AuthenticationInfo info = null;
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AuthenticationResult result =
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authenticator.authenticate(requestProvider.get(), responseProvider.get(),
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token.getUsername(), new String(token.getPassword()));
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if ((result != null) && (AuthenticationState.SUCCESS == result.getState()))
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{
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loginAttemptHandler.onSuccessfulAuthentication(authToken, result);
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info = createAuthenticationInfo(token, result);
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}
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else if ((result != null)
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&& (AuthenticationState.NOT_FOUND == result.getState()))
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{
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throw new UnknownAccountException(
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"unknown account ".concat(token.getUsername()));
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}
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else
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{
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loginAttemptHandler.onUnsuccessfulAuthentication(authToken, result);
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throw new AccountException("authentication failed");
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}
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return info;
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}
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/**
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* Method description
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*
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*
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* @param principals
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*
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* @return
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*/
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@Override
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protected AuthorizationInfo doGetAuthorizationInfo(
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PrincipalCollection principals)
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{
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return collector.collect(principals);
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}
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/**
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* Method description
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*
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*
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* @param request
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* @param password
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* @param ar
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*
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* @return
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*/
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private Set<String> authenticate(HttpServletRequest request, String password,
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AuthenticationResult ar)
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{
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Set<String> groupSet = null;
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User user = ar.getUser();
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try
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{
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groupSet = createGroupSet(ar);
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// check for admin user
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checkForAuthenticatedAdmin(user, groupSet);
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// store user
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User dbUser = userDAO.get(user.getName());
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if (dbUser != null)
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{
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checkDBForAdmin(user, dbUser);
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checkDBForActive(user, dbUser);
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}
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// create new user
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else if (user.isValid())
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{
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user.setCreationDate(System.currentTimeMillis());
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// TODO find a better way
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UserEventHack.fireEvent(userManager, HandlerEventType.BEFORE_CREATE,
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user);
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userDAO.add(user);
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UserEventHack.fireEvent(userManager, HandlerEventType.CREATE, user);
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}
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else if (logger.isErrorEnabled())
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{
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logger.error("could not create user {}, beacause it is not valid",
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user.getName());
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}
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if (user.isActive())
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{
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if (logger.isDebugEnabled())
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{
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logGroups(user, groupSet);
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}
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// store encrypted credentials in session
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String credentials = user.getName();
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if (Util.isNotEmpty(password))
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{
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credentials = credentials.concat(":").concat(password);
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}
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credentials = CipherUtil.getInstance().encode(credentials);
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request.getSession(true).setAttribute(SCM_CREDENTIALS, credentials);
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}
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else
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{
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String msg = "user ".concat(user.getName()).concat(" is deactivated");
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if (logger.isWarnEnabled())
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{
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logger.warn(msg);
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}
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throw new DisabledAccountException(msg);
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}
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}
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catch (Exception ex)
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{
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logger.error("authentication failed", ex);
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throw new AuthenticationException("authentication failed", ex);
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}
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return groupSet;
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}
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/**
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* Method description
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*
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*
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* @param user
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* @param dbUser
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*/
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private void checkDBForActive(User user, User dbUser)
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{
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// user is deactivated by database
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if (!dbUser.isActive())
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{
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if (logger.isDebugEnabled())
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{
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logger.debug("user {} is marked as deactivated by local database",
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user.getName());
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}
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user.setActive(false);
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}
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}
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/**
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* Method description
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*
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*
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* @param user
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* @param dbUser
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*
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* @throws IOException
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* @throws UserException
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*/
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private void checkDBForAdmin(User user, User dbUser)
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throws UserException, IOException
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{
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// if database user is an admin, set admin for the current user
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if (dbUser.isAdmin())
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{
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if (logger.isDebugEnabled())
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{
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logger.debug("user {} of type {} is marked as admin by local database",
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user.getName(), user.getType());
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}
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user.setAdmin(true);
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}
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// modify existing user, copy properties except password and admin
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if (user.copyProperties(dbUser, false))
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{
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userManager.modify(dbUser);
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}
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}
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/**
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* Method description
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*
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*
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* @param user
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* @param groupSet
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*/
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private void checkForAuthenticatedAdmin(User user, Set<String> groupSet)
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{
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if (!user.isAdmin())
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{
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user.setAdmin(isAdmin(user, groupSet));
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if (logger.isDebugEnabled() && user.isAdmin())
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{
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logger.debug("user {} is marked as admin by configuration",
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user.getName());
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}
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}
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else if (logger.isDebugEnabled())
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{
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logger.debug("authenticator {} marked user {} as admin", user.getType(),
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user.getName());
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}
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}
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/**
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* Method description
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*
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*
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* @param token
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* @param result
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*
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* @return
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*/
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private AuthenticationInfo createAuthenticationInfo(
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UsernamePasswordToken token, AuthenticationResult result)
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{
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User user = result.getUser();
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Collection<String> groups = authenticate(requestProvider.get(),
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new String(token.getPassword()), result);
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SimplePrincipalCollection collection = new SimplePrincipalCollection();
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/*
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* the first (primary) principal should be a unique identifier
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*/
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collection.add(user.getId(), NAME);
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collection.add(user, NAME);
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collection.add(new GroupNames(groups), NAME);
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return new SimpleAuthenticationInfo(collection, token.getPassword());
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}
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/**
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* Method description
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*
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*
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* @param ar
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*
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* @return
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*/
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private Set<String> createGroupSet(AuthenticationResult ar)
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{
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Set<String> groupSet = Sets.newHashSet();
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// add group for all authenticated users
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groupSet.add(GroupNames.AUTHENTICATED);
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// load external groups
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Collection<String> extGroups = ar.getGroups();
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if (extGroups != null)
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{
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groupSet.addAll(extGroups);
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}
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// load internal groups
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loadGroups(ar.getUser(), groupSet);
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return groupSet;
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}
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/**
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* Method description
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*
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*
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*
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* @param user
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* @param groupSet
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*/
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private void loadGroups(User user, Set<String> groupSet)
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{
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Collection<Group> groupCollection =
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groupManager.getGroupsForMember(user.getName());
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if (groupCollection != null)
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{
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for (Group group : groupCollection)
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{
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groupSet.add(group.getName());
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}
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}
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}
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/**
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* Method description
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*
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*
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* @param user
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* @param groups
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*/
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private void logGroups(User user, Set<String> groups)
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{
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StringBuilder msg = new StringBuilder("user ");
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msg.append(user.getName());
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if (Util.isNotEmpty(groups))
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{
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msg.append(" is member of ");
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Joiner.on(", ").appendTo(msg, groups);
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}
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else
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{
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msg.append(" is not a member of a group");
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}
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logger.debug(msg.toString());
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}
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//~--- get methods ----------------------------------------------------------
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/**
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* Method description
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*
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*
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*
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*
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* @param user
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* @param groups
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* @return
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*/
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private boolean isAdmin(User user, Collection<String> groups)
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{
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boolean result = false;
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Set<String> adminUsers = configuration.getAdminUsers();
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if (adminUsers != null)
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{
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result = adminUsers.contains(user.getName());
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}
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if (!result)
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{
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Set<String> adminGroups = configuration.getAdminGroups();
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if (adminGroups != null)
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{
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result = Util.containsOne(adminGroups, groups);
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}
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}
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return result;
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}
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//~--- fields ---------------------------------------------------------------
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/** Field description */
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private final AuthenticationManager authenticator;
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/** Field description */
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private final AuthorizationCollector collector;
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/** Field description */
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private final ScmConfiguration configuration;
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/** Field description */
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private final GroupManager groupManager;
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/** Field description */
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private final LoginAttemptHandler loginAttemptHandler;
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/** Field description */
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private final Provider<HttpServletRequest> requestProvider;
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/** Field description */
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private final Provider<HttpServletResponse> responseProvider;
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/** Field description */
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private final UserDAO userDAO;
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/** Field description */
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private final UserManager userManager;
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}
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