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invite 请求解析

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shikong 2023-09-14 15:05:57 +08:00
parent 7a89ac8184
commit 53dd8c1733
1 changed files with 74 additions and 6 deletions
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80
gb28181-mocking-service/src/main/java/cn/skcks/docking/gb28181/mocking/core/sip/message/processor/invite/request/InviteRequestProcessor.java
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@ -1,5 +1,6 @@
package cn.skcks.docking.gb28181.mocking.core.sip.message.processor.invite.request;
import cn.hutool.core.date.DateUtil;
import cn.skcks.docking.gb28181.core.sip.gb28181.sdp.GB28181Description;
import cn.skcks.docking.gb28181.core.sip.listener.SipListener;
import cn.skcks.docking.gb28181.core.sip.message.processor.MessageProcessor;
@ -7,16 +8,21 @@ import cn.skcks.docking.gb28181.core.sip.utils.SipUtil;
import cn.skcks.docking.gb28181.mocking.core.sip.gb28181.sdp.GB28181DescriptionParser;
import cn.skcks.docking.gb28181.mocking.core.sip.response.SipResponseBuilder;
import cn.skcks.docking.gb28181.mocking.core.sip.sender.SipSender;
import cn.skcks.docking.gb28181.mocking.orm.mybatis.dynamic.mapper.MockingDeviceMapper;
import gov.nist.javax.sdp.TimeDescriptionImpl;
import gov.nist.javax.sdp.fields.TimeField;
import gov.nist.javax.sip.message.SIPRequest;
import jakarta.annotation.PostConstruct;
import lombok.RequiredArgsConstructor;
import lombok.SneakyThrows;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang3.StringUtils;
import org.springframework.stereotype.Component;
import javax.sdp.Media;
import javax.sdp.MediaDescription;
import javax.sdp.SdpParseException;
import javax.sdp.SessionName;
import javax.sip.RequestEvent;
import javax.sip.header.CallIdHeader;
import javax.sip.message.Request;
@ -32,6 +38,8 @@ public class InviteRequestProcessor implements MessageProcessor {
private final SipSender sender;
private final MockingDeviceMapper mockingDeviceMapper;
@PostConstruct
@Override
public void init() {
@ -63,14 +71,74 @@ public class InviteRequestProcessor implements MessageProcessor {
log.error("sdp media 解析异常: {}", e.getMessage());
return false;
}
}).findFirst().ifPresentOrElse((ignore)->{
log.info("{}", ignore);
}).findFirst().ifPresentOrElse((item)->{
SessionName sessionName = gb28181Description.getSessionName();
try {
String type = sessionName.getValue();
log.info("type {}", type);
if(StringUtils.equalsAnyIgnoreCase(type,"Play","PlayBack")){
log.info("点播/回放请求");
if(StringUtils.equalsIgnoreCase(type,"Play")){
play(gb28181Description, (MediaDescription) item);
} else {
playback(gb28181Description, (MediaDescription) item);
}
} else if(StringUtils.equalsIgnoreCase(type,"Download")){
log.info("下载请求");
} else {
log.error("未知请求类型: {}", type);
sender.sendResponse(senderIp, transport, unsupported(request));
}
} catch (SdpParseException e) {
log.error("sdp 解析异常: {}", e.getMessage());
}
},()->{
log.info("未找到支持的媒体类型");
sender.sendResponse(senderIp,transport, ((provider, ip, port) ->
SipResponseBuilder.response(request,
Response.UNSUPPORTED_MEDIA_TYPE,
"Unsupported Media Type")));
sender.sendResponse(senderIp, transport, unsupported(request));
});
}
private SipSender.SendResponse unsupported(SIPRequest request) {
return (provider, ip, port) -> SipResponseBuilder.response(request, Response.UNSUPPORTED_MEDIA_TYPE,
"Unsupported Media Type");
}
/**
* 模拟设备不支持实时 故直接回放 最近15分钟 至 当前时间录像
* @param gb28181Description gb28181 sdp
* @param mediaDescription 媒体描述符
*/
@SneakyThrows
private void play(GB28181Description gb28181Description, MediaDescription mediaDescription){
TimeField time = new TimeField();
time.setStart(DateUtil.offsetMinute(DateUtil.date(), -15));
time.setStop(DateUtil.date());
playback(gb28181Description, mediaDescription, time);
}
/**
* 模拟设备 录像回放 当前小时至当前时间录像
* @param gb28181Description gb28181 sdp
* @param mediaDescription 媒体描述符
*/
@SneakyThrows
private void playback(GB28181Description gb28181Description, MediaDescription mediaDescription) {
TimeDescriptionImpl timeDescription = (TimeDescriptionImpl) gb28181Description.getTimeDescriptions(true).get(0);
TimeField time = (TimeField) timeDescription.getTime();
playback(gb28181Description, mediaDescription, time);
}
@SneakyThrows
private void playback(GB28181Description gb28181Description, MediaDescription mediaDescription, TimeField time){
Media media = mediaDescription.getMedia();
int port = media.getMediaPort();
log.info("目标端口号: {}", port);
log.info("{} ~ {}", time.getStart(), time.getStop());
String channelId = gb28181Description.getOrigin().getUsername();
log.info("通道id: {}", channelId);
String address = gb28181Description.getOrigin().getAddress();
log.info("目标地址: {}", address);
}
}