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 |  |  | import java.text.ParseException;
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 |  |  | import javax.sip.ClientTransaction;
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 |  |  | import javax.sip.Dialog;
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 |  |  | import javax.sip.InvalidArgumentException;
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 |  |  | import javax.sip.ResponseEvent;
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 |  |  | import javax.sip.message.Request;
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 |  |  | import javax.sip.message.Response;
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 |  |  | import gov.nist.javax.sip.header.CSeq;
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 |  |  | import org.slf4j.Logger;
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 |  |  | import org.slf4j.LoggerFactory;
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 |  |  | import org.springframework.stereotype.Component;
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 |  |  | import com.genersoft.iot.vmp.gb28181.transmit.SIPProcessorFactory;
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 |  |  | import com.genersoft.iot.vmp.gb28181.transmit.response.ISIPResponseProcessor;
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 |  |  | /**     | 
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 |  |  | /**
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 |  |  |  * @Description:处理INVITE响应
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 |  |  |  * @author: swwheihei
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 |  |  |  * @date:   2020年5月3日 下午4:43:52      | 
 |  |  |  * @date: 2020年5月3日 下午4:43:52
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 |  |  |  */
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 |  |  | @Component
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 |  |  | public class InviteResponseProcessor implements ISIPResponseProcessor {
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 |  |  |    private final static Logger logger = LoggerFactory.getLogger(SIPProcessorFactory.class);
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 |  |  |    private final static Logger logger = LoggerFactory.getLogger(InviteResponseProcessor.class);
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 |  |  |    /**
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 |  |  |     * 处理invite响应
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 |  |  |     * 
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 |  |  |     * @param evt
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 |  |  |     *            响应消息
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 |  |  |     */  | 
 |  |  |     * @param evt 响应消息
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 |  |  |     * @throws ParseException
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 |  |  |     */
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 |  |  |    @Override
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 |  |  |    public void process(ResponseEvent evt, SipLayer layer, SipConfig config) {
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 |  |  |    public void process(ResponseEvent evt, SipLayer layer, SipConfig config) throws ParseException {
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 |  |  |       try {
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 |  |  |          Response response = evt.getResponse();
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 |  |  |          int statusCode = response.getStatusCode();
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 |  |  |          //trying不会回复
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 |  |  |          if(statusCode == Response.TRYING){
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 |  |  | 
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 |  |  |          // trying不会回复
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 |  |  |          if (statusCode == Response.TRYING) {
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 |  |  |          }
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 |  |  |          //成功响应
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 |  |  |          //下发ack
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 |  |  |          if(statusCode == Response.OK){
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 |  |  | //            ClientTransaction clientTransaction = evt.getClientTransaction();
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 |  |  | //            if(clientTransaction == null){
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 |  |  | //               logger.error("回复ACK时,clientTransaction为null >>> {}",response);
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 |  |  | //               return;
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 |  |  | //            }
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 |  |  | //            Dialog clientDialog = clientTransaction.getDialog();
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 |  |  | //
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 |  |  | //            CSeqHeader clientCSeqHeader = (CSeqHeader) response.getHeader(CSeqHeader.NAME);
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 |  |  | //            long cseqId = clientCSeqHeader.getSeqNumber();
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 |  |  | //            /*
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 |  |  | //            createAck函数,创建的ackRequest,会采用Invite响应的200OK,中的contact字段中的地址,作为目标地址。
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 |  |  | //            有的终端传上来的可能还是内网地址,会造成ack发送不出去。接受不到音视频流
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 |  |  | //            所以在此处统一替换地址。和响应消息的Via头中的地址保持一致。
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 |  |  | //             */
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 |  |  | //            Request ackRequest = clientDialog.createAck(cseqId);
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 |  |  | //            SipURI requestURI = (SipURI) ackRequest.getRequestURI();
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 |  |  | //            ViaHeader viaHeader = (ViaHeader) response.getHeader(ViaHeader.NAME);
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 |  |  | //            requestURI.setHost(viaHeader.getHost());
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 |  |  | //            requestURI.setPort(viaHeader.getPort());
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 |  |  | //            clientDialog.sendAck(ackRequest);
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 |  |  | 				 | 
 |  |  |          // 成功响应
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 |  |  |          // 下发ack
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 |  |  |          if (statusCode == Response.OK) {
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 |  |  |             Dialog dialog = evt.getDialog();
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 |  |  |             Request reqAck =dialog.createAck(1L);
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 |  |  |             CSeqHeader cseq = (CSeqHeader) response.getHeader(CSeqHeader.NAME);
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 |  |  |             Request reqAck = dialog.createAck(cseq.getSeqNumber());
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 |  |  |             SipURI requestURI = (SipURI) reqAck.getRequestURI();
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 |  |  |             ViaHeader viaHeader = (ViaHeader) response.getHeader(ViaHeader.NAME);
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 |  |  |             requestURI.setHost(viaHeader.getHost());
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 |  |  |             requestURI.setPort(viaHeader.getPort());
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 |  |  |             reqAck.setRequestURI(requestURI);
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 |  |  |             dialog.sendAck(reqAck);
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 |  |  |          }
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 |  |  |       } catch (InvalidArgumentException | SipException e) {
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