| | |
| | | package com.genersoft.iot.vmp.gb28181.transmit.event.request; |
| | | |
| | | import gov.nist.javax.sip.SipProviderImpl; |
| | | import gov.nist.javax.sip.SipStackImpl; |
| | | import gov.nist.javax.sip.message.SIPRequest; |
| | | import gov.nist.javax.sip.stack.SIPServerTransaction; |
| | | import org.dom4j.Document; |
| | | import org.dom4j.DocumentException; |
| | | import org.dom4j.Element; |
| | | import org.dom4j.io.SAXReader; |
| | | import org.slf4j.Logger; |
| | | import org.slf4j.LoggerFactory; |
| | | import org.springframework.beans.factory.InitializingBean; |
| | | import org.springframework.beans.factory.annotation.Autowired; |
| | | import org.springframework.beans.factory.annotation.Qualifier; |
| | | |
| | | import javax.sip.*; |
| | | import javax.sip.address.Address; |
| | | import javax.sip.address.AddressFactory; |
| | | import javax.sip.address.SipURI; |
| | | import javax.sip.header.ContentTypeHeader; |
| | | import javax.sip.header.HeaderFactory; |
| | | import javax.sip.header.ViaHeader; |
| | | import javax.sip.message.MessageFactory; |
| | | import javax.sip.message.Request; |
| | | import javax.sip.message.Response; |
| | | import java.io.ByteArrayInputStream; |
| | | import java.text.ParseException; |
| | | |
| | | /** |
| | | * @description:处理接收IPCamera发来的SIP协议请求消息 |
| | | * @author: songww |
| | | * @date: 2020年5月3日 下午4:42:22 |
| | | */ |
| | | public abstract class SIPRequestProcessorAbstract implements InitializingBean, ISIPRequestProcessor { |
| | | public abstract class SIPRequestProcessorAbstract { |
| | | |
| | | private final static Logger logger = LoggerFactory.getLogger(SIPRequestProcessorAbstract.class); |
| | | |
| | | @Autowired |
| | | @Qualifier(value="tcpSipProvider") |
| | |
| | | @Autowired |
| | | @Qualifier(value="udpSipProvider") |
| | | private SipProviderImpl udpSipProvider; |
| | | |
| | | /** |
| | | * 根据 RequestEvent 获取 ServerTransaction |
| | | * @param evt |
| | | * @return |
| | | */ |
| | | public ServerTransaction getServerTransaction(RequestEvent evt) { |
| | | Request request = evt.getRequest(); |
| | | ServerTransaction serverTransaction = evt.getServerTransaction(); |
| | | // 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; |
| | | } |
| | | |
| | | if (serverTransaction == null) { |
| | | try { |
| | | if (isTcp) { |
| | | SipStackImpl stack = (SipStackImpl)tcpSipProvider.getSipStack(); |
| | | serverTransaction = (SIPServerTransaction) stack.findTransaction((SIPRequest)request, true); |
| | | if (serverTransaction == null) { |
| | | serverTransaction = tcpSipProvider.getNewServerTransaction(request); |
| | | } |
| | | } else { |
| | | SipStackImpl stack = (SipStackImpl)udpSipProvider.getSipStack(); |
| | | serverTransaction = (SIPServerTransaction) stack.findTransaction((SIPRequest)request, true); |
| | | if (serverTransaction == null) { |
| | | serverTransaction = udpSipProvider.getNewServerTransaction(request); |
| | | } |
| | | } |
| | | } catch (TransactionAlreadyExistsException e) { |
| | | logger.error(e.getMessage()); |
| | | } catch (TransactionUnavailableException e) { |
| | | logger.error(e.getMessage()); |
| | | } |
| | | } |
| | | return serverTransaction; |
| | | } |
| | | |
| | | public AddressFactory getAddressFactory() { |
| | | try { |
| | | return SipFactory.getInstance().createAddressFactory(); |
| | | } catch (PeerUnavailableException e) { |
| | | e.printStackTrace(); |
| | | } |
| | | return null; |
| | | } |
| | | |
| | | public HeaderFactory getHeaderFactory() { |
| | | try { |
| | | return SipFactory.getInstance().createHeaderFactory(); |
| | | } catch (PeerUnavailableException e) { |
| | | e.printStackTrace(); |
| | | } |
| | | return null; |
| | | } |
| | | |
| | | public MessageFactory getMessageFactory() { |
| | | try { |
| | | return SipFactory.getInstance().createMessageFactory(); |
| | | } catch (PeerUnavailableException e) { |
| | | e.printStackTrace(); |
| | | } |
| | | return null; |
| | | } |
| | | |
| | | /*** |
| | | * 回复状态码 |
| | | * 100 trying |
| | | * 200 OK |
| | | * 400 |
| | | * 404 |
| | | * @param evt |
| | | * @throws SipException |
| | | * @throws InvalidArgumentException |
| | | * @throws ParseException |
| | | */ |
| | | public void responseAck(RequestEvent evt, int statusCode) throws SipException, InvalidArgumentException, ParseException { |
| | | Response response = getMessageFactory().createResponse(statusCode, evt.getRequest()); |
| | | ServerTransaction serverTransaction = getServerTransaction(evt); |
| | | serverTransaction.sendResponse(response); |
| | | if (statusCode >= 200) { |
| | | if (serverTransaction.getDialog() != null) serverTransaction.getDialog().delete(); |
| | | } |
| | | } |
| | | |
| | | public void responseAck(RequestEvent evt, int statusCode, String msg) throws SipException, InvalidArgumentException, ParseException { |
| | | Response response = getMessageFactory().createResponse(statusCode, evt.getRequest()); |
| | | response.setReasonPhrase(msg); |
| | | ServerTransaction serverTransaction = getServerTransaction(evt); |
| | | serverTransaction.sendResponse(response); |
| | | if (statusCode >= 200) { |
| | | if (serverTransaction.getDialog() != null) serverTransaction.getDialog().delete(); |
| | | } |
| | | } |
| | | |
| | | /** |
| | | * 回复带sdp的200 |
| | | * @param evt |
| | | * @param sdp |
| | | * @throws SipException |
| | | * @throws InvalidArgumentException |
| | | * @throws ParseException |
| | | */ |
| | | public void responseAck(RequestEvent evt, String sdp) throws SipException, InvalidArgumentException, ParseException { |
| | | Response response = getMessageFactory().createResponse(Response.OK, evt.getRequest()); |
| | | SipFactory sipFactory = SipFactory.getInstance(); |
| | | ContentTypeHeader contentTypeHeader = sipFactory.createHeaderFactory().createContentTypeHeader("APPLICATION", "SDP"); |
| | | response.setContent(sdp, contentTypeHeader); |
| | | |
| | | SipURI sipURI = (SipURI)evt.getRequest().getRequestURI(); |
| | | |
| | | Address concatAddress = sipFactory.createAddressFactory().createAddress( |
| | | sipFactory.createAddressFactory().createSipURI(sipURI.getUser(), sipURI.getHost()+":"+sipURI.getPort() |
| | | )); |
| | | response.addHeader(sipFactory.createHeaderFactory().createContactHeader(concatAddress)); |
| | | getServerTransaction(evt).sendResponse(response); |
| | | } |
| | | |
| | | public Element getRootElement(RequestEvent evt) throws DocumentException { |
| | | return getRootElement(evt, "gb2312"); |
| | | } |
| | | public Element getRootElement(RequestEvent evt, String charset) throws DocumentException { |
| | | if (charset == null) charset = "gb2312"; |
| | | Request request = evt.getRequest(); |
| | | SAXReader reader = new SAXReader(); |
| | | reader.setEncoding(charset); |
| | | Document xml = reader.read(new ByteArrayInputStream(request.getRawContent())); |
| | | return xml.getRootElement(); |
| | | } |
| | | |
| | | } |