From d7a1b94f905c5f28c9c8f2d48c3f9e28ebcf9cc4 Mon Sep 17 00:00:00 2001
From: 648540858 <648540858@qq.com>
Date: 星期六, 24 九月 2022 21:04:58 +0800
Subject: [PATCH] Merge branch 'wvp-28181-2.0'

---
 src/main/java/com/genersoft/iot/vmp/gb28181/utils/SipUtils.java |   38 +++++++++++++++++++++++++++++++++++++-
 1 files changed, 37 insertions(+), 1 deletions(-)

diff --git a/src/main/java/com/genersoft/iot/vmp/gb28181/utils/SipUtils.java b/src/main/java/com/genersoft/iot/vmp/gb28181/utils/SipUtils.java
index 8025818..cf64a86 100644
--- a/src/main/java/com/genersoft/iot/vmp/gb28181/utils/SipUtils.java
+++ b/src/main/java/com/genersoft/iot/vmp/gb28181/utils/SipUtils.java
@@ -1,12 +1,20 @@
 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
@@ -23,8 +31,12 @@
     /**
      * 浠巗ubject璇诲彇channelId
      * */
-    public static String getChannelIdFromHeader(Request request) {
+    public static String getChannelIdFromRequest(Request request) {
         Header subject = request.getHeader("subject");
+        if (subject == null) {
+            // 濡傛灉缂哄けsubject
+            return null;
+        }
         return ((Subject) subject).getSubject().split(":")[0];
     }
 
@@ -34,4 +46,28 @@
         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());
+    }
+
 }

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