648540858
2022-08-15 c041aaccb43baf73d1a9f5b50fb5a1f410b88523
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package com.genersoft.iot.vmp.gb28181.transmit.cmd;
 
import com.genersoft.iot.vmp.conf.SipConfig;
import com.genersoft.iot.vmp.gb28181.bean.ParentPlatform;
import com.genersoft.iot.vmp.gb28181.bean.SubscribeInfo;
import com.genersoft.iot.vmp.storager.IRedisCatchStorage;
import gov.nist.javax.sip.message.MessageFactoryImpl;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import org.springframework.util.DigestUtils;
 
import javax.sip.*;
import javax.sip.address.Address;
import javax.sip.address.SipURI;
import javax.sip.header.*;
import javax.sip.message.Request;
import javax.validation.constraints.NotNull;
import java.text.ParseException;
import java.util.ArrayList;
import java.util.List;
import java.util.UUID;
 
/**
 * @description: 平台命令request创造器 TODO 冗余代码太多待优化
 * @author: panll
 * @date: 2020年5月6日 上午9:29:02
 */
@Component
public class SIPRequestHeaderPlarformProvider {
 
    @Autowired
    private SipConfig sipConfig;
    
    @Autowired
    private SipFactory sipFactory;
 
    @Autowired
    private IRedisCatchStorage redisCatchStorage;
 
 
    public Request createKeetpaliveMessageRequest(ParentPlatform parentPlatform, String content, String viaTag, String fromTag, String toTag, CallIdHeader callIdHeader) throws ParseException, InvalidArgumentException, PeerUnavailableException {
        Request request = null;
        // sipuri
        SipURI requestURI = sipFactory.createAddressFactory().createSipURI(parentPlatform.getServerGBId(), parentPlatform.getServerIP() + ":" + parentPlatform.getServerPort());
        // via
        ArrayList<ViaHeader> viaHeaders = new ArrayList<ViaHeader>();
        ViaHeader viaHeader = sipFactory.createHeaderFactory().createViaHeader(sipConfig.getIp(), sipConfig.getPort(),
                parentPlatform.getTransport(), viaTag);
        viaHeader.setRPort();
        viaHeaders.add(viaHeader);
        // from
        SipURI fromSipURI = sipFactory.createAddressFactory().createSipURI(parentPlatform.getDeviceGBId(),
                sipConfig.getIp() + ":" + sipConfig.getPort());
        Address fromAddress = sipFactory.createAddressFactory().createAddress(fromSipURI);
        FromHeader fromHeader = sipFactory.createHeaderFactory().createFromHeader(fromAddress, fromTag);
        // to
        SipURI toSipURI = sipFactory.createAddressFactory().createSipURI(parentPlatform.getServerGBId(), parentPlatform.getServerIP() + ":" + parentPlatform.getServerPort() );
        Address toAddress = sipFactory.createAddressFactory().createAddress(toSipURI);
        ToHeader toHeader = sipFactory.createHeaderFactory().createToHeader(toAddress, toTag);
 
 
        // Forwards
        MaxForwardsHeader maxForwards = sipFactory.createHeaderFactory().createMaxForwardsHeader(70);
        // ceq
        CSeqHeader cSeqHeader = sipFactory.createHeaderFactory().createCSeqHeader(redisCatchStorage.getCSEQ(), Request.MESSAGE);
 
        request = sipFactory.createMessageFactory().createRequest(requestURI, Request.MESSAGE, callIdHeader, cSeqHeader, fromHeader,
                toHeader, viaHeaders, maxForwards);
 
        List<String> agentParam = new ArrayList<>();
 
        ContentTypeHeader contentTypeHeader = sipFactory.createHeaderFactory().createContentTypeHeader("Application", "MANSCDP+xml");
        request.setContent(content, contentTypeHeader);
        return request;
    }
 
 
    public Request createRegisterRequest(@NotNull ParentPlatform platform, long CSeq, String fromTag, String viaTag, CallIdHeader callIdHeader) throws ParseException, InvalidArgumentException, PeerUnavailableException {
        Request request = null;
        String sipAddress = sipConfig.getIp() + ":" + sipConfig.getPort();
        //请求行
        SipURI requestLine = sipFactory.createAddressFactory().createSipURI(platform.getServerGBId(),
                platform.getServerIP() + ":" + platform.getServerPort());
        //via
        ArrayList<ViaHeader> viaHeaders = new ArrayList<ViaHeader>();
        ViaHeader viaHeader = sipFactory.createHeaderFactory().createViaHeader(platform.getServerIP(), platform.getServerPort(), platform.getTransport(), viaTag);
        viaHeader.setRPort();
        viaHeaders.add(viaHeader);
        //from
        SipURI fromSipURI = sipFactory.createAddressFactory().createSipURI(platform.getDeviceGBId(),sipAddress);
        Address fromAddress = sipFactory.createAddressFactory().createAddress(fromSipURI);
        FromHeader fromHeader = sipFactory.createHeaderFactory().createFromHeader(fromAddress, fromTag);
        //to
        SipURI toSipURI = sipFactory.createAddressFactory().createSipURI(platform.getDeviceGBId(),sipAddress);
        Address toAddress = sipFactory.createAddressFactory().createAddress(toSipURI);
        ToHeader toHeader = sipFactory.createHeaderFactory().createToHeader(toAddress,null);
 
 
 
        //Forwards
        MaxForwardsHeader maxForwards = sipFactory.createHeaderFactory().createMaxForwardsHeader(70);
 
        //ceq
        CSeqHeader cSeqHeader = sipFactory.createHeaderFactory().createCSeqHeader(CSeq, Request.REGISTER);
        request = sipFactory.createMessageFactory().createRequest(requestLine, Request.REGISTER, callIdHeader,
                cSeqHeader,fromHeader, toHeader, viaHeaders, maxForwards);
 
        Address concatAddress = sipFactory.createAddressFactory().createAddress(sipFactory.createAddressFactory()
                .createSipURI(platform.getDeviceGBId(), sipAddress));
        request.addHeader(sipFactory.createHeaderFactory().createContactHeader(concatAddress));
 
        ExpiresHeader expires = sipFactory.createHeaderFactory().createExpiresHeader(Integer.parseInt(platform.getExpires()));
        request.addHeader(expires);
 
 
        return request;
    }
 
    public Request createRegisterRequest(@NotNull ParentPlatform parentPlatform, String fromTag, String viaTag,
                                         String callId, WWWAuthenticateHeader www , CallIdHeader callIdHeader) throws ParseException, PeerUnavailableException, InvalidArgumentException {
 
 
        Request registerRequest = createRegisterRequest(parentPlatform, redisCatchStorage.getCSEQ(), fromTag, viaTag, callIdHeader);
        SipURI requestURI = sipFactory.createAddressFactory().createSipURI(parentPlatform.getServerGBId(), parentPlatform.getServerIP() + ":" + parentPlatform.getServerPort());
        if (www == null) {
            AuthorizationHeader authorizationHeader = sipFactory.createHeaderFactory().createAuthorizationHeader("Digest");
            authorizationHeader.setUsername(parentPlatform.getDeviceGBId());
            authorizationHeader.setURI(requestURI);
            authorizationHeader.setAlgorithm("MD5");
            registerRequest.addHeader(authorizationHeader);
            return  registerRequest;
        }
        String realm = www.getRealm();
        String nonce = www.getNonce();
        String scheme = www.getScheme();
 
        // 参考 https://blog.csdn.net/y673533511/article/details/88388138
        // qop 保护质量 包含auth(默认的)和auth-int(增加了报文完整性检测)两种策略
        String qop = www.getQop();
 
        callIdHeader.setCallId(callId);
 
        String cNonce = null;
        String nc = "00000001";
        if (qop != null) {
            if ("auth".equals(qop)) {
                // 客户端随机数,这是一个不透明的字符串值,由客户端提供,并且客户端和服务器都会使用,以避免用明文文本。
                // 这使得双方都可以查验对方的身份,并对消息的完整性提供一些保护
                cNonce = UUID.randomUUID().toString();
 
            }else if ("auth-int".equals(qop)){
                // TODO
            }
        }
        String HA1 = DigestUtils.md5DigestAsHex((parentPlatform.getDeviceGBId() + ":" + realm + ":" + parentPlatform.getPassword()).getBytes());
        String HA2=DigestUtils.md5DigestAsHex((Request.REGISTER + ":" + requestURI.toString()).getBytes());
 
        StringBuffer reStr = new StringBuffer(200);
        reStr.append(HA1);
        reStr.append(":");
        reStr.append(nonce);
        reStr.append(":");
        if (qop != null) {
            reStr.append(nc);
            reStr.append(":");
            reStr.append(cNonce);
            reStr.append(":");
            reStr.append(qop);
            reStr.append(":");
        }
        reStr.append(HA2);
 
        String RESPONSE = DigestUtils.md5DigestAsHex(reStr.toString().getBytes());
 
        AuthorizationHeader authorizationHeader = sipFactory.createHeaderFactory().createAuthorizationHeader(scheme);
        authorizationHeader.setUsername(parentPlatform.getDeviceGBId());
        authorizationHeader.setRealm(realm);
        authorizationHeader.setNonce(nonce);
        authorizationHeader.setURI(requestURI);
        authorizationHeader.setResponse(RESPONSE);
        authorizationHeader.setAlgorithm("MD5");
        if (qop != null) {
            authorizationHeader.setQop(qop);
            authorizationHeader.setCNonce(cNonce);
            authorizationHeader.setNonceCount(1);
        }
        registerRequest.addHeader(authorizationHeader);
 
        return registerRequest;
    }
 
 
    public Request createMessageRequest(ParentPlatform parentPlatform, String content, String fromTag, CallIdHeader callIdHeader) throws PeerUnavailableException, ParseException, InvalidArgumentException {
        Request request = null;
        // sipuri
        SipURI requestURI = sipFactory.createAddressFactory().createSipURI(parentPlatform.getServerGBId(), parentPlatform.getServerIP()+ ":" + parentPlatform.getServerPort());
        // via
        ArrayList<ViaHeader> viaHeaders = new ArrayList<ViaHeader>();
        ViaHeader viaHeader = sipFactory.createHeaderFactory().createViaHeader(parentPlatform.getDeviceIp(), Integer.parseInt(parentPlatform.getDevicePort()),
                parentPlatform.getTransport(), null);
        viaHeader.setRPort();
        viaHeaders.add(viaHeader);
        // from
        SipURI fromSipURI = sipFactory.createAddressFactory().createSipURI(parentPlatform.getDeviceGBId(),
                parentPlatform.getDeviceIp() + ":" + parentPlatform.getDevicePort());
        Address fromAddress = sipFactory.createAddressFactory().createAddress(fromSipURI);
        FromHeader fromHeader = sipFactory.createHeaderFactory().createFromHeader(fromAddress, fromTag);
        // to
        SipURI toSipURI = sipFactory.createAddressFactory().createSipURI(parentPlatform.getServerGBId(), parentPlatform.getServerGBDomain());
        Address toAddress = sipFactory.createAddressFactory().createAddress(toSipURI);
        ToHeader toHeader = sipFactory.createHeaderFactory().createToHeader(toAddress, null);
 
        // Forwards
        MaxForwardsHeader maxForwards = sipFactory.createHeaderFactory().createMaxForwardsHeader(70);
        // ceq
        CSeqHeader cSeqHeader = sipFactory.createHeaderFactory().createCSeqHeader(redisCatchStorage.getCSEQ(), Request.MESSAGE);
        MessageFactoryImpl messageFactory = (MessageFactoryImpl) sipFactory.createMessageFactory();
        // 设置编码, 防止中文乱码
        messageFactory.setDefaultContentEncodingCharset(parentPlatform.getCharacterSet());
        request = messageFactory.createRequest(requestURI, Request.MESSAGE, callIdHeader, cSeqHeader, fromHeader,
                toHeader, viaHeaders, maxForwards);
 
        ContentTypeHeader contentTypeHeader = sipFactory.createHeaderFactory().createContentTypeHeader("Application", "MANSCDP+xml");
        request.setContent(content, contentTypeHeader);
        return request;
    }
}