panlinlin
2021-01-04 dcd78a1cfa0c929403d51a347e43414f6aa5f0d8
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package com.genersoft.iot.vmp.gb28181.transmit.request.impl;
 
import java.security.NoSuchAlgorithmException;
import java.text.ParseException;
import java.util.Calendar;
import java.util.Locale;
 
import javax.sip.InvalidArgumentException;
import javax.sip.RequestEvent;
import javax.sip.SipException;
import javax.sip.header.AuthorizationHeader;
import javax.sip.header.ContactHeader;
import javax.sip.header.ExpiresHeader;
import javax.sip.header.FromHeader;
import javax.sip.header.ViaHeader;
import javax.sip.message.Request;
import javax.sip.message.Response;
 
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.util.StringUtils;
 
import com.genersoft.iot.vmp.common.VideoManagerConstants;
import com.genersoft.iot.vmp.conf.SipConfig;
import com.genersoft.iot.vmp.gb28181.auth.DigestServerAuthenticationHelper;
import com.genersoft.iot.vmp.gb28181.auth.RegisterLogicHandler;
import com.genersoft.iot.vmp.gb28181.bean.Device;
import com.genersoft.iot.vmp.gb28181.bean.Host;
import com.genersoft.iot.vmp.gb28181.event.EventPublisher;
import com.genersoft.iot.vmp.gb28181.transmit.request.SIPRequestAbstractProcessor;
import com.genersoft.iot.vmp.storager.IVideoManagerStorager;
 
import gov.nist.javax.sip.address.AddressImpl;
import gov.nist.javax.sip.address.SipUri;
import gov.nist.javax.sip.header.Expires;
 
/**    
 * @Description:收到注册请求 处理 
 * @author: swwheihei
 * @date:   2020年5月3日 下午4:47:25     
 */
public class RegisterRequestProcessor extends SIPRequestAbstractProcessor {
 
    private Logger logger = LoggerFactory.getLogger(RegisterRequestProcessor.class);
 
    private SipConfig sipConfig;
    
    private RegisterLogicHandler handler;
    
    private IVideoManagerStorager storager;
    
    private EventPublisher publisher;
 
    /**
     * 收到注册请求 处理
      * @param evt
     */
    @Override
    public void process(RequestEvent evt) {
        try {
            logger.info("收到注册请求,开始处理");
            Request request = evt.getRequest();
 
            Response response = null; 
            boolean passwordCorrect = false;
            // 注册标志  0:未携带授权头或者密码错误  1:注册成功   2:注销成功
            int registerFlag = 0;
            Device device = null;
            AuthorizationHeader authorhead = (AuthorizationHeader) request.getHeader(AuthorizationHeader.NAME); 
            // 校验密码是否正确
            if (authorhead != null) {
                passwordCorrect = new DigestServerAuthenticationHelper().doAuthenticatePlainTextPassword(request,
                        sipConfig.getSipPassword());
            }
 
            // 未携带授权头或者密码错误 回复401
            if (authorhead == null || !passwordCorrect) {
                
                if (authorhead == null) {
                    logger.info("未携带授权头 回复401");
                } else if (!passwordCorrect) {
                    logger.info("密码错误 回复401");
                }
                response = getMessageFactory().createResponse(Response.UNAUTHORIZED, request);
                new DigestServerAuthenticationHelper().generateChallenge(getHeaderFactory(), response, sipConfig.getSipDomain());
            }
            // 携带授权头并且密码正确
            else if (passwordCorrect) {
                response = getMessageFactory().createResponse(Response.OK, request);
                // 添加date头
                response.addHeader(getHeaderFactory().createDateHeader(Calendar.getInstance(Locale.ENGLISH)));
                ExpiresHeader expiresHeader = (ExpiresHeader) request.getHeader(Expires.NAME);
                // 添加Contact头
                response.addHeader(request.getHeader(ContactHeader.NAME));
                // 添加Expires头
                response.addHeader(request.getExpires());
                
                // 1.获取到通信地址等信息,保存到Redis
                FromHeader fromHeader = (FromHeader) request.getHeader(FromHeader.NAME);
                ViaHeader viaHeader = (ViaHeader) request.getHeader(ViaHeader.NAME);
                String received = viaHeader.getReceived();
                int rPort = viaHeader.getRPort();
                // 本地模拟设备 received 为空 rPort 为 -1
                // 解析本地地址替代
                if (StringUtils.isEmpty(received) || rPort == -1) {
                    received = viaHeader.getHost();
                    rPort = viaHeader.getPort();
                }
                //
                AddressImpl address = (AddressImpl) fromHeader.getAddress();
                SipUri uri = (SipUri) address.getURI();
                String deviceId = uri.getUser();
                device = new Device();
                device.setStreamMode("UDP");
                device.setDeviceId(deviceId);
                device.setIp(received);
                device.setPort(rPort);
                device.setHostAddress(received.concat(":").concat(String.valueOf(rPort)));
                // 注销成功
                if (expiresHeader != null && expiresHeader.getExpires() == 0) {
                    registerFlag = 2;
                }
                // 注册成功
                else {
                    registerFlag = 1;
                    // 判断TCP还是UDP
                    boolean isTcp = false;
                    ViaHeader reqViaHeader = (ViaHeader) request.getHeader(ViaHeader.NAME);
                    String transport = reqViaHeader.getTransport();
                    if (transport.equals("TCP")) {
                        isTcp = true;
                    }
                    device.setTransport(isTcp ? "TCP" : "UDP");
                }
            }
            getServerTransaction(evt).sendResponse(response);
            // 注册成功
            // 保存到redis
            // 下发catelog查询目录
            if (registerFlag == 1 && device != null) {
                logger.info("注册成功! deviceId:" + device.getDeviceId());
                boolean exists = storager.exists(device.getDeviceId());
                device.setRegisterTimeMillis(System.currentTimeMillis());
                storager.updateDevice(device);
                publisher.onlineEventPublish(device.getDeviceId(), VideoManagerConstants.EVENT_ONLINE_REGISTER);
 
                // 只有第一次注册才更新通道
                if (!exists) {
                    handler.onRegister(device);
                }
            } else if (registerFlag == 2) {
                logger.info("注销成功! deviceId:" + device.getDeviceId());
                publisher.outlineEventPublish(device.getDeviceId(), VideoManagerConstants.EVENT_OUTLINE_UNREGISTER);
            }
        } catch (SipException | InvalidArgumentException | NoSuchAlgorithmException | ParseException e) {
            e.printStackTrace();
        }
        
    }
    
    public void setSipConfig(SipConfig sipConfig) {
        this.sipConfig = sipConfig;
    }
 
    public void setHandler(RegisterLogicHandler handler) {
        this.handler = handler;
    }
 
    public void setVideoManagerStorager(IVideoManagerStorager storager) {
        this.storager = storager;
    }
 
    public void setPublisher(EventPublisher publisher) {
        this.publisher = publisher;
    }
 
}