com.rockagen.gnext.service.spring.security.extension.BasicWebAuthenticationDetails.java Source code

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Here is the source code for com.rockagen.gnext.service.spring.security.extension.BasicWebAuthenticationDetails.java

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/*
 * Copyright 2014 the original author or authors.
 *
 * 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.rockagen.gnext.service.spring.security.extension;

import javax.servlet.http.HttpServletRequest;

import org.springframework.security.web.authentication.WebAuthenticationDetails;

import com.rockagen.commons.util.CommUtil;

/**
 * An extension for spring security resolve the remoteAddress
 * 
 * @author RA
 */
public class BasicWebAuthenticationDetails extends WebAuthenticationDetails {

    // ~ Instance fields ==================================================

    /**
     * 
     */
    private static final long serialVersionUID = 8522362828655932804L;
    /** The remote address. */
    private final String remoteAddress;

    // ~ Constructors
    // ===================================================================================================

    /**
     * Records the remote address and will also set the session Id if a session
     * already exists (it won't create one).
     * 
     * @param request
     *            that the authentication request was received from
     */
    public BasicWebAuthenticationDetails(HttpServletRequest request) {

        super(request);
        remoteAddress = getRealAddr(request);
    }

    /**
     * Get the real Address
     * 
     * @param request
     * @return
     * @throws Exception
     */
    protected String getRealAddr(final HttpServletRequest request) {

        String customerIp = "";
        // If proxies by nginx apache ...
        String temp1 = request.getHeader("X-Real-IP");

        if (!CommUtil.isBlank(temp1)) {
            customerIp = temp1;
        } else {
            // use default
            customerIp = request.getRemoteAddr();
        }
        return customerIp;
    }

    /**
     * Indicates the TCP/IP address the authentication request was received
     * from.
     * 
     * @return the address
     */
    @Override
    public String getRemoteAddress() {
        return remoteAddress;
    }

    @Override
    public boolean equals(Object obj) {
        if (obj instanceof WebAuthenticationDetails) {
            WebAuthenticationDetails rhs = (WebAuthenticationDetails) obj;

            if ((getRemoteAddress() == null) && (rhs.getRemoteAddress() != null)) {
                return false;
            }

            if ((getRemoteAddress() != null) && (rhs.getRemoteAddress() == null)) {
                return false;
            }

            if (getRemoteAddress() != null) {
                if (!getRemoteAddress().equals(rhs.getRemoteAddress())) {
                    return false;
                }
            }

            if ((getSessionId() == null) && (rhs.getSessionId() != null)) {
                return false;
            }

            if ((getSessionId() != null) && (rhs.getSessionId() == null)) {
                return false;
            }

            if (getSessionId() != null) {
                if (!getSessionId().equals(rhs.getSessionId())) {
                    return false;
                }
            }

            return true;
        }

        return false;
    }

    public int hashCode() {
        int code = 1618;

        if (getRemoteAddress() != null) {
            code = code * (getRemoteAddress().hashCode() % 7);
        }

        if (getSessionId() != null) {
            code = code * (getSessionId().hashCode() % 7);
        }

        return code;
    }
}