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