From 922a9e8b3216ee5b6fd36ce607eaa81f6adf70ca Mon Sep 17 00:00:00 2001
From: 648540858 <648540858@qq.com>
Date: 星期二, 07 二月 2023 14:52:33 +0800
Subject: [PATCH] 修复语音对讲返回的地址

---
 src/main/java/com/genersoft/iot/vmp/gb28181/utils/SipUtils.java |   63 +++++++++++++++++++++++++++++--
 1 files changed, 59 insertions(+), 4 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 bf2a0ee..45c5a90 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
@@ -1,9 +1,12 @@
 package com.genersoft.iot.vmp.gb28181.utils;
 
+import com.genersoft.iot.vmp.gb28181.bean.RemoteAddressInfo;
 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 gov.nist.javax.sip.message.SIPRequest;
+import org.springframework.util.ObjectUtils;
 
 import javax.sip.PeerUnavailableException;
 import javax.sip.SipFactory;
@@ -52,10 +55,15 @@
 
     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());
+        agentParam.add("WVP-Pro ");
+        if (gitUtil != null ) {
+            if (!ObjectUtils.isEmpty(gitUtil.getBuildVersion())) {
+                agentParam.add("v");
+                agentParam.add(gitUtil.getBuildVersion() + ".");
+            }
+            if (!ObjectUtils.isEmpty(gitUtil.getCommitTime())) {
+                agentParam.add(gitUtil.getCommitTime());
+            }
         }
         return sipFactory.createHeaderFactory().createUserAgentHeader(agentParam);
     }
@@ -113,4 +121,51 @@
         return builder.toString();
     }
 
+    public static String getNewCallId() {
+        return (int) Math.floor(Math.random() * 10000) + "";
+    }
+
+    public static int getTypeCodeFromGbCode(String deviceId) {
+        if (ObjectUtils.isEmpty(deviceId)) {
+            return 0;
+        }
+        return Integer.parseInt(deviceId.substring(10, 13));
+    }
+
+    /**
+     * 鍒ゆ柇鏄惁鏄墠绔鍥磋澶�
+     * @param deviceId
+     * @return
+     */
+    public static boolean isFrontEnd(String deviceId) {
+        int typeCodeFromGbCode = getTypeCodeFromGbCode(deviceId);
+        return typeCodeFromGbCode > 130 && typeCodeFromGbCode < 199;
+    }
+    /**
+     * 浠庤姹備腑鑾峰彇璁惧ip鍦板潃鍜岀鍙e彿
+     * @param request 璇锋眰
+     * @param sipUseSourceIpAsRemoteAddress  false 浠巚ia涓幏鍙栧湴鍧�锛� true 鐩存帴鑾峰彇杩滅▼鍦板潃
+     * @return 鍦板潃淇℃伅
+     */
+    public static RemoteAddressInfo getRemoteAddressFromRequest(SIPRequest request, boolean sipUseSourceIpAsRemoteAddress) {
+
+        String remoteAddress;
+        int remotePort;
+        if (sipUseSourceIpAsRemoteAddress) {
+            remoteAddress = request.getRemoteAddress().getHostAddress();
+            remotePort = request.getRemotePort();
+        }else {
+            // 鍒ゆ柇RPort鏄惁鏀瑰彉锛屾敼鍙樺垯璇存槑璺敱nat淇℃伅鍙樺寲锛屼慨鏀硅澶囦俊鎭�
+            // 鑾峰彇鍒伴�氫俊鍦板潃绛変俊鎭�
+            remoteAddress = request.getTopmostViaHeader().getReceived();
+            remotePort = request.getTopmostViaHeader().getRPort();
+            // 瑙f瀽鏈湴鍦板潃鏇夸唬
+            if (ObjectUtils.isEmpty(remoteAddress) || remotePort == -1) {
+                remoteAddress = request.getTopmostViaHeader().getHost();
+                remotePort = request.getTopmostViaHeader().getPort();
+            }
+        }
+
+        return new RemoteAddressInfo(remoteAddress, remotePort);
+    }
 }

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