648540858
2023-01-13 dea44dcd78418ed3e7f191a73cee2b81a7a0019f
src/main/java/com/genersoft/iot/vmp/gb28181/utils/SipUtils.java
@@ -121,6 +121,32 @@
        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));
    }
    /**
     * 判断是否是前端外围设备
     * @param deviceId
     * @return
     */
    public static boolean isFrontEnd(String deviceId) {
        int typeCodeFromGbCode = getTypeCodeFromGbCode(deviceId);
        return typeCodeFromGbCode > 130 && typeCodeFromGbCode < 199;
    }
    /**
     * 从请求中获取设备ip地址和端口号
     * @param request 请求
     * @param sipUseSourceIpAsRemoteAddress  false 从via中获取地址, true 直接获取远程地址
     * @return 地址信息
     */
    public static RemoteAddressInfo getRemoteAddressFromRequest(SIPRequest request, boolean sipUseSourceIpAsRemoteAddress) {
        String remoteAddress;
@@ -132,11 +158,11 @@
            // 判断RPort是否改变,改变则说明路由nat信息变化,修改设备信息
            // 获取到通信地址等信息
            remoteAddress = request.getTopmostViaHeader().getReceived();
            remotePort = request.getTopmostViaHeader().getPort();
            remotePort = request.getTopmostViaHeader().getRPort();
            // 解析本地地址替代
            if (ObjectUtils.isEmpty(remoteAddress) || remotePort == -1) {
                remoteAddress = request.getViaHost();
                remotePort = request.getViaPort();
                remoteAddress = request.getTopmostViaHeader().getHost();
                remotePort = request.getTopmostViaHeader().getPort();
            }
        }