Single sign on 华夫：如何强制kerberos？_Single Sign On_Kerberos_Ntlm_Waffle

Single sign on 华夫：如何强制kerberos？

single-sign-on

Single sign on 华夫：如何强制kerberos？,single-sign-on,kerberos,ntlm,waffle,Single Sign On,Kerberos,Ntlm,Waffle,我正在使用for SingleSignOn连接到Web应用程序。它工作正常，但我想知道是否有可能强制Kerberos避免回退到NTLM。更新（04.04.18）： HTTP身份验证不支持“Kerberos”，因此无法强制执行。 Http只知道“协商”。如果在windows下使用协商，您将获得一个SPNEGO令牌，它可以是Kerberos或NTLM 我将华夫饼设置更改为使用自定义NegotiateSecurityFilterProvider。这基本上是NegotiateSecurityFilter

我正在使用for SingleSignOn连接到Web应用程序。它工作正常，但我想知道是否有可能强制Kerberos避免回退到NTLM。

更新（04.04.18）： HTTP身份验证不支持“Kerberos”，因此无法强制执行。 Http只知道“协商”。如果在windows下使用协商，您将获得一个SPNEGO令牌，它可以是Kerberos或NTLM

我将华夫饼设置更改为使用自定义NegotiateSecurityFilterProvider。这基本上是NegotiateSecurityFilterProvider类，但有三个变化。这样，服务将只接受Kerberos令牌作为身份验证。一个肮脏的解决方案，但它可以工作（尚未使用Kerberos进行测试）：

建造商（仅接受协商）：

在doFilter方法中，我添加了以下内容：

//Custom NTLM Token Disable
if(isNTLMToken(authorizationHeader)) {
    response.setHeader("Connection", "keep-alive");
    response.setStatus(HttpServletResponse.SC_UNAUTHORIZED);
    response.flushBuffer();
    return null;
}

添加了一个isNTLMToken方法：

private boolean isNTLMToken(AuthorizationHeader authorizationHeader) {
    String decodedToken = new String(Base64.getDecoder().decode(authorizationHeader.getToken()));
    return decodedToken.contains("NTLM")
        || decodedToken.contains("ntlm");
}

这将是整个班级：

/**
 * Waffle (https://github.com/Waffle/waffle)
 *
 * Copyright (c) 2010-2016 Application Security, Inc.
 *
 * All rights reserved. This program and the accompanying materials are made available     under the terms of the Eclipse
 * Public License v1.0 which accompanies this distribution, and is available at
 * https://www.eclipse.org/legal/epl-v10.html.
 *
 * Contributors: Application Security, Inc.
 */
package com.example.extention;

import java.io.IOException;
import java.security.InvalidParameterException;
import java.util.ArrayList;
import java.util.Base64;
import java.util.Iterator;
import java.util.List;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.google.common.io.BaseEncoding;

import waffle.servlet.spi.SecurityFilterProvider;
import waffle.util.AuthorizationHeader;
import waffle.util.NtlmServletRequest;
import waffle.windows.auth.IWindowsAuthProvider;
import waffle.windows.auth.IWindowsIdentity;
import waffle.windows.auth.IWindowsSecurityContext;

/**
 * A negotiate security filter provider.
 *
 * @author dblock[at]dblock[dot]org
 */
public class CustomSecurityFilter implements SecurityFilterProvider {

    /** The Constant LOGGER. */
    private static final Logger LOGGER = LoggerFactory.getLogger(CustomSecurityFilter.class);

    /** The Constant WWW_AUTHENTICATE. */
    private static final String WWW_AUTHENTICATE = "WWW-Authenticate";

    /** The Constant PROTOCOLS. */
    private static final String PROTOCOLS = "protocols";

    /** The Constant NEGOTIATE. */
    private static final String NEGOTIATE = "Negotiate";

    /** The protocols. */
    private List<String> protocols = new ArrayList<>();

    /** The auth. */
    private final IWindowsAuthProvider auth;

    /**
     * Instantiates a new negotiate security filter provider.
     *
     * @param newAuthProvider the new auth provider
     */
    public CustomSecurityFilter(final IWindowsAuthProvider newAuthProvider) {
        this.auth = newAuthProvider;
        this.protocols.add(CustomSecurityFilter.NEGOTIATE);
    }

    /**
     * Gets the protocols.
     *
     * @return the protocols
     */
    public List<String> getProtocols() {
        return this.protocols;
    }

    /**
     * Sets the protocols.
     *
     * @param values the new protocols
     */
    public void setProtocols(final List<String> values) {
        this.protocols = values;
    }

    /*
     * (non-Javadoc)
     *
     * @see
     * waffle.servlet.spi.SecurityFilterProvider#sendUnauthorized(javax.servlet.http
     * .HttpServletResponse)
     */
    @Override
    public void sendUnauthorized(final HttpServletResponse response) {
        final Iterator<String> protocolsIterator = this.protocols.iterator();
        while (protocolsIterator.hasNext()) {
            response.addHeader(WWW_AUTHENTICATE, protocolsIterator.next());
        }
    }

    /*
     * (non-Javadoc)
     *
     * @see
     * waffle.servlet.spi.SecurityFilterProvider#isPrincipalException(javax.servlet.
     * http.HttpServletRequest)
     */
    @Override
    public boolean isPrincipalException(final HttpServletRequest request) {
        final AuthorizationHeader authorizationHeader = new AuthorizationHeader(request);
        final boolean ntlmPost = authorizationHeader.isNtlmType1PostAuthorizationHeader();
        LOGGER.debug("authorization: {}, ntlm post: {}", authorizationHeader, Boolean.valueOf(ntlmPost));
        return ntlmPost;
    }

    /*
     * (non-Javadoc)
     *
     * @see waffle.servlet.spi.SecurityFilterProvider#doFilter(javax.servlet.http.
     * HttpServletRequest, javax.servlet.http.HttpServletResponse)
     */
    @Override
    public IWindowsIdentity doFilter(final HttpServletRequest request, final HttpServletResponse response) throws IOException {

        final AuthorizationHeader authorizationHeader = new AuthorizationHeader(request);
        final boolean ntlmPost = authorizationHeader.isNtlmType1PostAuthorizationHeader();


        //Custom NTLM Token Disable
        if(isNTLMToken(authorizationHeader)) {
            response.setHeader("Connection", "keep-alive");
            response.setStatus(HttpServletResponse.SC_UNAUTHORIZED);
            response.flushBuffer();
            return null;
        }

        // maintain a connection-based session for NTLM tokens
        final String connectionId = NtlmServletRequest.getConnectionId(request);
        final String securityPackage = authorizationHeader.getSecurityPackage();
        LOGGER.debug("security package: {}, connection id: {}", securityPackage, connectionId);

        if (ntlmPost) {
            // type 2 NTLM authentication message received
            this.auth.resetSecurityToken(connectionId);
        }

        final byte[] tokenBuffer = authorizationHeader.getTokenBytes();
        LOGGER.debug("token buffer: {} byte(s)", Integer.valueOf(tokenBuffer.length));
        final IWindowsSecurityContext securityContext = this.auth.acceptSecurityToken(connectionId, tokenBuffer, securityPackage);

        final byte[] continueTokenBytes = securityContext.getToken();
        if (continueTokenBytes != null && continueTokenBytes.length > 0) {
            final String continueToken = BaseEncoding.base64().encode(continueTokenBytes);
            LOGGER.debug("continue token: {}", continueToken);
            response.addHeader(WWW_AUTHENTICATE, securityPackage + " " + continueToken);
        }

        LOGGER.debug("continue required: {}", Boolean.valueOf(securityContext.isContinue()));
        if (securityContext.isContinue() || ntlmPost) {
            response.setHeader("Connection", "keep-alive");
            response.setStatus(HttpServletResponse.SC_UNAUTHORIZED);
            response.flushBuffer();
            return null;
        }

        final IWindowsIdentity identity = securityContext.getIdentity();
        securityContext.dispose();
        return identity;
    }

    private boolean isNTLMToken(AuthorizationHeader authorizationHeader) {
        String decodedToken = new String(Base64.getDecoder().decode(authorizationHeader.getToken()));
        return decodedToken.contains("NTLM")
                || decodedToken.contains("ntlm");
    }

    /*
     * (non-Javadoc)
     *
     * @see
     * waffle.servlet.spi.SecurityFilterProvider#isSecurityPackageSupported(java.
     * lang.String)
     */
    @Override
    public boolean isSecurityPackageSupported(final String securityPackage) {
        for (final String protocol : this.protocols) {
            if (protocol.equalsIgnoreCase(securityPackage)) {
                return true;
            }
        }
        return false;
    }

    /*
     * (non-Javadoc)
     *
     * @see
     * waffle.servlet.spi.SecurityFilterProvider#initParameter(java.lang.String,
     * java.lang.String)
     */
    @Override
    public void initParameter(final String parameterName, final String parameterValue) {
        if (parameterName.equals(PROTOCOLS)) {
            this.protocols = new ArrayList<>();
            final String[] protocolNames = parameterValue.split("\\s+");
            for (String protocolName : protocolNames) {
                protocolName = protocolName.trim();
                if (protocolName.length() > 0) {
                    LOGGER.debug("init protocol: {}", protocolName);
                    if (protocolName.equals(NEGOTIATE)) {
                        this.protocols.add(protocolName);
                    } else {
                        LOGGER.error("unsupported protocol: {}", protocolName);
                        throw new RuntimeException("Unsupported protocol: " + protocolName);
                    }
                }
            }
        } else {
            throw new InvalidParameterException(parameterName);
        }
    }
}

/**
*华夫饼干(https://github.com/Waffle/waffle)
*
*版权所有（c）2010-2016应用安全公司。
*
*版权所有。本计划和随附材料在Eclipse条款下提供
*此发行版附带的公共许可证v1.0，可在
* https://www.eclipse.org/legal/epl-v10.html.
*
*贡献者：应用程序安全公司。
*/
包com.example.extension；
导入java.io.IOException；
导入java.security.InvalidParameterException；
导入java.util.ArrayList；
导入java.util.Base64；
导入java.util.Iterator；
导入java.util.List；
导入javax.servlet.http.HttpServletRequest；
导入javax.servlet.http.HttpServletResponse；
导入org.slf4j.Logger；
导入org.slf4j.LoggerFactory；
导入com.google.common.io.BaseEncoding；
导入waffle.servlet.spi.SecurityFilterProvider；
导入waffle.util.AuthorizationHeader；
导入waffle.util.NtlmServletRequest；
导入waffle.windows.auth.IWindowsAuthProvider；
导入waffle.windows.auth.IWindowsIdentity；
导入waffle.windows.auth.IWindowsSecurityContext；
/**
*协商安全筛选器提供程序。
*
*@author dblock[at]dblock[dot]org
*/
公共类CustomSecurityFilter实现SecurityFilterProvider{
/**常数记录器*/
私有静态最终记录器Logger=LoggerFactory.getLogger（CustomSecurityFilter.class）；
/**常数WWW_验证*/
私有静态最终字符串WWW\u AUTHENTICATE=“WWW AUTHENTICATE”；
/**不变的协议*/
专用静态最终字符串协议=“协议”；
/**不断的谈判*/
私有静态最终字符串NEGOTIATE=“NEGOTIATE”；
/**协议*/
私有列表协议=新的ArrayList（）；
/**作者*/
私有最终iwindowsauth提供者身份验证；
/**
*实例化新的协商安全筛选器提供程序。
*
*@param newAuthProvider新的身份验证提供程序
*/
public CustomSecurityFilter（最终IWindowsAuthProvider newAuthProvider）{
this.auth=newAuthProvider；
this.protocols.add（CustomSecurityFilter.NEGOTIATE）；
}
/**
*获取协议。
*
*@返回协议
*/
公共列表getProtocols（）{
将此文件返回。协议；
}
/**
*设置协议。
*
*@param重视新协议
*/
公共协议（最终列表值）{
此参数=值；
}
/*
*（非Javadoc）
*
*@见
*waffle.servlet.spi.SecurityFilterProvider#sendUnauthorized（javax.servlet.http
*.HttpServletResponse）
*/
@凌驾
public void sendUnauthorized（最终HttpServletResponse）{
final Iterator protocolsIterator=this.protocols.Iterator（）；
while（protocolsIterator.hasNext（））{
addHeader（WWW_AUTHENTICATE，protocolsIterator.next（））；
}
}
/*
*（非Javadoc）
*
*@见
*SecurityFilterProvider#isPrincipalException（javax.servlet）。
*http.HttpServletRequest）
*/
@凌驾
公共布尔isPrincipalException（最终HttpServletRequest请求）{
最终授权标头AuthorizationHeader=新授权标头（请求）；
最终布尔值ntlmPost=authorizationHeader.isNtlmType1PostAuthorizationHeader（）；
debug（“authorization:{}，ntlmPost:{}”，authorizationHeader，Boolean.valueOf（ntlmPost））；
返回ntlmPost；
}
/*
*（非Javadoc）
*
*@请参阅waffle.servlet.spi.SecurityFilterProvider#doFilter（javax.servlet.http。
*HttpServletRequest，javax.servlet.http.HttpServletResponse）
*/
@凌驾
公共IWindowsIdentity doFilter（最终HttpServletRequest请求，最终HttpServletResponse响应）引发IOException{
最终授权标头AuthorizationHeader=新授权标头（请求）；
最终布尔值ntlmPost=authorizationHeader.isNtlmType1PostAuthorizationHeader（）；
//自定义NTLM令牌禁用
if（isNTLMToken（授权标头））{
setHeader（“连接”，“保持活动”）；
response.setStatus（HttpServletResponse.SC_未经授权）；
response.flushBuffer（）；
返回null；
}
//为NTLM令牌维护基于连接的会话
最终字符串connectionId=NtlmServletRequest.getConnectionId（请求）；
最后一个字符串securityPackage=authorizationHeader.getSecurityPackage（）；
debug（“安全包：{}，连接id:{}”，securityPackage，connectionId）；
国际单项体育联合会（ntlmPost）{
//接收到类型2 NTLM身份验证消息
this.auth.resetSecurityToken（connectionId）；
}
最后一个字节[]tokenBuffer=authorizationHeader.getTokenBytes（）；
debug（“令牌缓冲区：{}字节）”，Integer.valueOf（tokenBuffer.length））；
final IWindowsSecurityContext securityContext=this.auth.acceptSecurityToken（connectionId、tokenBuffer、securityPackage）；
/**
 * Waffle (https://github.com/Waffle/waffle)
 *
 * Copyright (c) 2010-2016 Application Security, Inc.
 *
 * All rights reserved. This program and the accompanying materials are made available     under the terms of the Eclipse
 * Public License v1.0 which accompanies this distribution, and is available at
 * https://www.eclipse.org/legal/epl-v10.html.
 *
 * Contributors: Application Security, Inc.
 */
package com.example.extention;

import java.io.IOException;
import java.security.InvalidParameterException;
import java.util.ArrayList;
import java.util.Base64;
import java.util.Iterator;
import java.util.List;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.google.common.io.BaseEncoding;

import waffle.servlet.spi.SecurityFilterProvider;
import waffle.util.AuthorizationHeader;
import waffle.util.NtlmServletRequest;
import waffle.windows.auth.IWindowsAuthProvider;
import waffle.windows.auth.IWindowsIdentity;
import waffle.windows.auth.IWindowsSecurityContext;

/**
 * A negotiate security filter provider.
 *
 * @author dblock[at]dblock[dot]org
 */
public class CustomSecurityFilter implements SecurityFilterProvider {

    /** The Constant LOGGER. */
    private static final Logger LOGGER = LoggerFactory.getLogger(CustomSecurityFilter.class);

    /** The Constant WWW_AUTHENTICATE. */
    private static final String WWW_AUTHENTICATE = "WWW-Authenticate";

    /** The Constant PROTOCOLS. */
    private static final String PROTOCOLS = "protocols";

    /** The Constant NEGOTIATE. */
    private static final String NEGOTIATE = "Negotiate";

    /** The protocols. */
    private List<String> protocols = new ArrayList<>();

    /** The auth. */
    private final IWindowsAuthProvider auth;

    /**
     * Instantiates a new negotiate security filter provider.
     *
     * @param newAuthProvider the new auth provider
     */
    public CustomSecurityFilter(final IWindowsAuthProvider newAuthProvider) {
        this.auth = newAuthProvider;
        this.protocols.add(CustomSecurityFilter.NEGOTIATE);
    }

    /**
     * Gets the protocols.
     *
     * @return the protocols
     */
    public List<String> getProtocols() {
        return this.protocols;
    }

    /**
     * Sets the protocols.
     *
     * @param values the new protocols
     */
    public void setProtocols(final List<String> values) {
        this.protocols = values;
    }

    /*
     * (non-Javadoc)
     *
     * @see
     * waffle.servlet.spi.SecurityFilterProvider#sendUnauthorized(javax.servlet.http
     * .HttpServletResponse)
     */
    @Override
    public void sendUnauthorized(final HttpServletResponse response) {
        final Iterator<String> protocolsIterator = this.protocols.iterator();
        while (protocolsIterator.hasNext()) {
            response.addHeader(WWW_AUTHENTICATE, protocolsIterator.next());
        }
    }

    /*
     * (non-Javadoc)
     *
     * @see
     * waffle.servlet.spi.SecurityFilterProvider#isPrincipalException(javax.servlet.
     * http.HttpServletRequest)
     */
    @Override
    public boolean isPrincipalException(final HttpServletRequest request) {
        final AuthorizationHeader authorizationHeader = new AuthorizationHeader(request);
        final boolean ntlmPost = authorizationHeader.isNtlmType1PostAuthorizationHeader();
        LOGGER.debug("authorization: {}, ntlm post: {}", authorizationHeader, Boolean.valueOf(ntlmPost));
        return ntlmPost;
    }

    /*
     * (non-Javadoc)
     *
     * @see waffle.servlet.spi.SecurityFilterProvider#doFilter(javax.servlet.http.
     * HttpServletRequest, javax.servlet.http.HttpServletResponse)
     */
    @Override
    public IWindowsIdentity doFilter(final HttpServletRequest request, final HttpServletResponse response) throws IOException {

        final AuthorizationHeader authorizationHeader = new AuthorizationHeader(request);
        final boolean ntlmPost = authorizationHeader.isNtlmType1PostAuthorizationHeader();


        //Custom NTLM Token Disable
        if(isNTLMToken(authorizationHeader)) {
            response.setHeader("Connection", "keep-alive");
            response.setStatus(HttpServletResponse.SC_UNAUTHORIZED);
            response.flushBuffer();
            return null;
        }

        // maintain a connection-based session for NTLM tokens
        final String connectionId = NtlmServletRequest.getConnectionId(request);
        final String securityPackage = authorizationHeader.getSecurityPackage();
        LOGGER.debug("security package: {}, connection id: {}", securityPackage, connectionId);

        if (ntlmPost) {
            // type 2 NTLM authentication message received
            this.auth.resetSecurityToken(connectionId);
        }

        final byte[] tokenBuffer = authorizationHeader.getTokenBytes();
        LOGGER.debug("token buffer: {} byte(s)", Integer.valueOf(tokenBuffer.length));
        final IWindowsSecurityContext securityContext = this.auth.acceptSecurityToken(connectionId, tokenBuffer, securityPackage);

        final byte[] continueTokenBytes = securityContext.getToken();
        if (continueTokenBytes != null && continueTokenBytes.length > 0) {
            final String continueToken = BaseEncoding.base64().encode(continueTokenBytes);
            LOGGER.debug("continue token: {}", continueToken);
            response.addHeader(WWW_AUTHENTICATE, securityPackage + " " + continueToken);
        }

        LOGGER.debug("continue required: {}", Boolean.valueOf(securityContext.isContinue()));
        if (securityContext.isContinue() || ntlmPost) {
            response.setHeader("Connection", "keep-alive");
            response.setStatus(HttpServletResponse.SC_UNAUTHORIZED);
            response.flushBuffer();
            return null;
        }

        final IWindowsIdentity identity = securityContext.getIdentity();
        securityContext.dispose();
        return identity;
    }

    private boolean isNTLMToken(AuthorizationHeader authorizationHeader) {
        String decodedToken = new String(Base64.getDecoder().decode(authorizationHeader.getToken()));
        return decodedToken.contains("NTLM")
                || decodedToken.contains("ntlm");
    }

    /*
     * (non-Javadoc)
     *
     * @see
     * waffle.servlet.spi.SecurityFilterProvider#isSecurityPackageSupported(java.
     * lang.String)
     */
    @Override
    public boolean isSecurityPackageSupported(final String securityPackage) {
        for (final String protocol : this.protocols) {
            if (protocol.equalsIgnoreCase(securityPackage)) {
                return true;
            }
        }
        return false;
    }

    /*
     * (non-Javadoc)
     *
     * @see
     * waffle.servlet.spi.SecurityFilterProvider#initParameter(java.lang.String,
     * java.lang.String)
     */
    @Override
    public void initParameter(final String parameterName, final String parameterValue) {
        if (parameterName.equals(PROTOCOLS)) {
            this.protocols = new ArrayList<>();
            final String[] protocolNames = parameterValue.split("\\s+");
            for (String protocolName : protocolNames) {
                protocolName = protocolName.trim();
                if (protocolName.length() > 0) {
                    LOGGER.debug("init protocol: {}", protocolName);
                    if (protocolName.equals(NEGOTIATE)) {
                        this.protocols.add(protocolName);
                    } else {
                        LOGGER.error("unsupported protocol: {}", protocolName);
                        throw new RuntimeException("Unsupported protocol: " + protocolName);
                    }
                }
            }
        } else {
            throw new InvalidParameterException(parameterName);
        }
    }
}