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/*
* Copyright 2013 gitblit.com.
*
* 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.
*/
package com.gitblit.auth;
import java.util.Set;
import java.util.TreeSet;
import waffle.windows.auth.IWindowsAccount;
import waffle.windows.auth.IWindowsAuthProvider;
import waffle.windows.auth.IWindowsComputer;
import waffle.windows.auth.IWindowsIdentity;
import waffle.windows.auth.impl.WindowsAuthProviderImpl;
import com.gitblit.Constants;
import com.gitblit.Constants.AccountType;
import com.gitblit.Keys;
import com.gitblit.auth.AuthenticationProvider.UsernamePasswordAuthenticationProvider;
import com.gitblit.models.UserModel;
import com.gitblit.utils.StringUtils;
import com.sun.jna.platform.win32.Win32Exception;
/**
* Implementation of a Windows authentication provider.
*
* @author James Moger
*/
public class WindowsAuthProvider extends UsernamePasswordAuthenticationProvider {
private IWindowsAuthProvider waffle;
public WindowsAuthProvider() {
super("windows");
}
@Override
public void setup() {
waffle = new WindowsAuthProviderImpl();
IWindowsComputer computer = waffle.getCurrentComputer();
logger.info("Windows Authentication Provider");
logger.info(" name = " + computer.getComputerName());
logger.info(" status = " + describeJoinStatus(computer.getJoinStatus()));
logger.info(" memberOf = " + computer.getMemberOf());
//logger.info(" groups = " + Arrays.asList(computer.getGroups()));
}
protected String describeJoinStatus(String value) {
if ("NetSetupUnknownStatus".equals(value)) {
return "unknown";
} else if ("NetSetupUnjoined".equals(value)) {
return "not joined";
} else if ("NetSetupWorkgroupName".equals(value)) {
return "joined to a workgroup";
} else if ("NetSetupDomainName".equals(value)) {
return "joined to a domain";
}
return value;
}
@Override
public boolean supportsCredentialChanges() {
return false;
}
@Override
public boolean supportsDisplayNameChanges() {
return false;
}
@Override
public boolean supportsEmailAddressChanges() {
return true;
}
@Override
public boolean supportsTeamMembershipChanges() {
return true;
}
@Override
public AccountType getAccountType() {
return AccountType.WINDOWS;
}
@Override
public UserModel authenticate(String username, char[] password) {
String defaultDomain = settings.getString(Keys.realm.windows.defaultDomain, null);
if (StringUtils.isEmpty(defaultDomain)) {
// ensure that default domain is null
defaultDomain = null;
}
if (defaultDomain != null) {
// sanitize username
if (username.startsWith(defaultDomain + "\\")) {
// strip default domain from domain\ username
username = username.substring(defaultDomain.length() + 1);
} else if (username.endsWith("@" + defaultDomain)) {
// strip default domain from username@domain
username = username.substring(0, username.lastIndexOf('@'));
}
}
IWindowsIdentity identity = null;
try {
if (username.indexOf('@') > -1 || username.indexOf('\\') > -1) {
// manually specified domain
identity = waffle.logonUser(username, new String(password));
} else {
// no domain specified, use default domain
identity = waffle.logonDomainUser(username, defaultDomain, new String(password));
}
} catch (Win32Exception e) {
logger.error(e.getMessage());
return null;
}
if (identity.isGuest() && !settings.getBoolean(Keys.realm.windows.allowGuests, false)) {
logger.warn("Guest account access is disabled");
identity.dispose();
return null;
}
UserModel user = userManager.getUserModel(username);
if (user == null) {
// create user object for new authenticated user
user = new UserModel(username.toLowerCase());
}
// create a user cookie
setCookie(user, password);
// update user attributes from Windows identity
user.accountType = getAccountType();
String fqn = identity.getFqn();
if (fqn.indexOf('\\') > -1) {
user.displayName = fqn.substring(fqn.lastIndexOf('\\') + 1);
} else {
user.displayName = fqn;
}
user.password = Constants.EXTERNAL_ACCOUNT;
Set<String> groupNames = new TreeSet<String>();
for (IWindowsAccount group : identity.getGroups()) {
groupNames.add(group.getFqn());
}
if (settings.getBoolean(Keys.realm.windows.permitBuiltInAdministrators, true)) {
if (groupNames.contains("BUILTIN\\Administrators")) {
// local administrator
user.canAdmin = true;
}
}
// TODO consider mapping Windows groups to teams
// push the changes to the backing user service
updateUser(user);
// cleanup resources
identity.dispose();
return user;
}
}
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