SipUtils.java
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package com.genersoft.iot.vmp.gb28181.utils;
import com.genersoft.iot.vmp.utils.GitUtil;
import gov.nist.javax.sip.address.AddressImpl;
import gov.nist.javax.sip.address.SipUri;
import gov.nist.javax.sip.header.Subject;
import javax.sip.PeerUnavailableException;
import javax.sip.SipFactory;
import javax.sip.header.FromHeader;
import javax.sip.header.Header;
import javax.sip.header.UserAgentHeader;
import javax.sip.message.Request;
import java.text.ParseException;
import java.util.ArrayList;
import java.util.List;
import java.util.UUID;
/**
* @author panlinlin
* @version 1.0.0
* @description JAIN SIP的工具类
* @createTime 2021年09月27日 15:12:00
*/
public class SipUtils {
public static String getUserIdFromFromHeader(Request request) {
FromHeader fromHeader = (FromHeader)request.getHeader(FromHeader.NAME);
return getUserIdFromFromHeader(fromHeader);
}
/**
* 从subject读取channelId
* */
public static String getChannelIdFromRequest(Request request) {
Header subject = request.getHeader("subject");
if (subject == null) {
// 如果缺失subject
return null;
}
return ((Subject) subject).getSubject().split(":")[0];
}
public static String getUserIdFromFromHeader(FromHeader fromHeader) {
AddressImpl address = (AddressImpl)fromHeader.getAddress();
SipUri uri = (SipUri) address.getURI();
return uri.getUser();
}
public static String getNewViaTag() {
return "z9hG4bK" + System.currentTimeMillis();
}
public static UserAgentHeader createUserAgentHeader(SipFactory sipFactory, GitUtil gitUtil) throws PeerUnavailableException, ParseException {
List<String> agentParam = new ArrayList<>();
agentParam.add("WVP-Pro v");
if (gitUtil != null && gitUtil.getCommitTime() != null) {
agentParam.add(gitUtil.getBuildVersion() + ".");
agentParam.add(gitUtil.getCommitTime());
}
return sipFactory.createHeaderFactory().createUserAgentHeader(agentParam);
}
public static String getNewFromTag(){
return UUID.randomUUID().toString().replace("-", "");
// return getNewTag();
}
public static String getNewTag(){
return String.valueOf(System.currentTimeMillis());
}
}