BUGFIX：回放时，优先从SDP中提取channelId，兼容从Subject无法提取到channelId的问题

hexq

2024-01-20 7055c53192aadf6af9444c81373ab256e760b808

BUGFIX：回放时，优先从SDP中提取channelId，兼容从Subject无法提取到channelId的问题

 src/main/java/com/genersoft/iot/vmp/gb28181/transmit/event/request/impl/InviteRequestProcessor.java

@@ -30,8 +30,10 @@
import com.genersoft.iot.vmp.utils.DateUtil;
import gov.nist.javax.sdp.TimeDescriptionImpl;
import gov.nist.javax.sdp.fields.TimeField;
import gov.nist.javax.sdp.fields.URIField;
import gov.nist.javax.sip.message.SIPRequest;
import gov.nist.javax.sip.message.SIPResponse;
import org.apache.commons.lang3.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.InitializingBean;
@@ -133,7 +135,20 @@
        //  Invite Request消息实现，此消息一般为级联消息，上级给下级发送请求视频指令
        try {
            SIPRequest request = (SIPRequest)evt.getRequest();
            String channelId = SipUtils.getChannelIdFromRequest(request);
            String channelIdFromSub = SipUtils.getChannelIdFromRequest(request);

            // 解析sdp消息, 使用jainsip 自带的sdp解析方式
            String contentString = new String(request.getRawContent());
            Gb28181Sdp gb28181Sdp = SipUtils.parseSDP(contentString);
            SessionDescription sdp = gb28181Sdp.getBaseSdb();
            String sessionName = sdp.getSessionName().getValue();
            String channelIdFromSdp = null;
            if(StringUtils.equalsIgnoreCase("Playback", sessionName)){
                URIField uriField = (URIField)sdp.getURI();
                channelIdFromSdp = uriField.getURI().split(":")[0];
            }
            final String channelId = StringUtils.isNotBlank(channelIdFromSdp) ? channelIdFromSdp : channelIdFromSub;

            String requesterId = SipUtils.getUserIdFromFromHeader(request);
            CallIdHeader callIdHeader = (CallIdHeader) request.getHeader(CallIdHeader.NAME);
            if (requesterId == null || channelId == null) {
@@ -242,12 +257,6 @@
                    }
                    return;
                }
                // 解析sdp消息, 使用jainsip 自带的sdp解析方式
                String contentString = new String(request.getRawContent());

                Gb28181Sdp gb28181Sdp = SipUtils.parseSDP(contentString);
                SessionDescription sdp = gb28181Sdp.getBaseSdb();
                String sessionName = sdp.getSessionName().getValue();

                Long startTime = null;
                Long stopTime = null;