如何生成GetSystemDateAndTime xml [英] How to generate GetSystemDateAndTime xml

问题描述

我有以下代码来自这个来源 ...

I have the following bit of code that i took from this source...

public bool Initialise(string cameraAddress, string userName, string password)
    {
        bool result = false;

        try
        {
            var messageElement = new TextMessageEncodingBindingElement()
            {
                MessageVersion = MessageVersion.CreateVersion(EnvelopeVersion.Soap12, AddressingVersion.None)
            };

            HttpTransportBindingElement httpBinding = new HttpTransportBindingElement()
            {
                AuthenticationScheme = AuthenticationSchemes.Digest
            };

            CustomBinding bind = new CustomBinding(messageElement, httpBinding);


            mediaClient = new MediaClient(bind, new EndpointAddress($"http://{cameraAddress}/onvif/Media"));
            mediaClient.ClientCredentials.HttpDigest.AllowedImpersonationLevel = System.Security.Principal.TokenImpersonationLevel.Impersonation;
            mediaClient.ClientCredentials.HttpDigest.ClientCredential.UserName = userName;
            mediaClient.ClientCredentials.HttpDigest.ClientCredential.Password = password;

            var profs = mediaClient.GetProfiles();

            //rest of the code...

当我在调试器的GetProfiles()部分中运行wireshark时，我看到生成的XML看起来像:

When i run wireshark while going through the GetProfiles() part in the debugger, I see that the generated XML looks like:

将xml更改为以下代码将需要什么代码:

What code would it take to change the xml to look like:

我应该如何调用GetSystemDateAndTime函数?

要调用GetProfiles函数，我必须创建一个MediaClient，然后调用该函数...

To call the GetProfiles function, I had to create a MediaClient and, then, call that function...

是否有MediaClient之类的东西可以访问GetSystemDateAndTime?

Is there such thing as a MediaClient to get access to the GetSystemDateAndTime??

我发现您可以使用DeviceClient来访问GetSystemDateAndTime函数...

I found that you could use the DeviceClient to get access the the GetSystemDateAndTime function...

您需要先将设备管理wsdl添加到连接的服务中，然后再执行以下操作: https://www.onvif.org/ver10/device/wsdl/devicemgmt. wsdl

You'll need to add the device management wsdl to your connected services before: https://www.onvif.org/ver10/device/wsdl/devicemgmt.wsdl

我还在其中添加了System.Net.ServicePointManager.Expect100Continue = false;，因为我看到有人说它对

I also added System.Net.ServicePointManager.Expect100Continue = false; in there because i saw someone said it helped at this link...

所以我添加了:

CustomBinding bind = new CustomBinding(messageElement, httpBinding);
System.Net.ServicePointManager.Expect100Continue = false;
DeviceClient d = new DeviceClient(bind, new EndpointAddress($"http://{cameraAddress}/onvif/device_service"));
var time = d.GetSystemDateAndTime();

注意: 我仍然遇到错误:

        ErrorMessage    "The header 'To' from the namespace 'http://www.w3.org/2005/08/addressing' was not understood by the recipient of this message, causing the message to not be processed.  This error typically indicates that the sender of this message has enabled a communication protocol that the receiver cannot process.  Please ensure that the configuration of the client's binding is consistent with the service's binding. "   string

推荐答案

此错误表示尝试读取消息时遇到麻烦，所以我很难理解这可能是由于某种编码导致的.

This error is saying that there is trouble when trying to read a message, so i tough it was probably due to some sort of encoding ...

我是对的！

我要做的就是在TextMessageEncodingBindingElement的创建过程中更改参数.

All I had to do was changing a parameter in the TextMessageEncodingBindingElement's creation.

MessageVersion = MessageVersion.CreateVersion(EnvelopeVersion.Soap12, AddressingVersion.WSAddressing10)

您需要做的就是确保您具有良好的编码和 AuthenticationScheme ...

All you need to do is make sure that you have good encoding and AuthenticationScheme...

这是我的最后一个代码，用于获取onvif摄像机(此处为cohuHD摄像机)的系统以及日期和时间设置:

Here's my final code to get an onvif camera's (here cohuHD camera) system and date and time settings:

public bool Initialise(string cameraAddress, string userName, string password)
    {
        bool result = false;

        try
        {
            var messageElement = new TextMessageEncodingBindingElement()
            {
                MessageVersion = MessageVersion.CreateVersion(EnvelopeVersion.Soap12, AddressingVersion.WSAddressing10)
            };

            HttpTransportBindingElement httpBinding = new HttpTransportBindingElement()
            {
                AuthenticationScheme = AuthenticationSchemes.Digest
            };

            CustomBinding bind = new CustomBinding(messageElement, httpBinding);

            System.Net.ServicePointManager.Expect100Continue = false;

            DeviceClient deviceClient = new DeviceClient(bind, new EndpointAddress($"http://{cameraAddress}/onvif/device_service"));

            var temps = deviceClient.GetSystemDateAndTime();
        }
        catch (Exception ex)
        {
            ErrorMessage = ex.Message;
        }
        return result;
    }

奖金:

如果要执行需要凭证的功能，可以将其添加到deviceClient中，如下所示:

If you want to execute a function that needs credentials, you can add those to your deviceClient like so:

//DIGEST (httpBinding)
deviceClient.ClientCredentials.HttpDigest.AllowedImpersonationLevel = System.Security.Principal.TokenImpersonationLevel.Impersonation;
deviceClient.ClientCredentials.HttpDigest.ClientCredential.UserName = userName;
deviceClient.ClientCredentials.HttpDigest.ClientCredential.Password = password;

还要提防EndpointAddress'URL ...我认为有些相机会使用Device_service和其他device_service.

Watch out also for the EndpointAddress' URL... I think some cameras use Device_service and other device_service .

这篇关于如何生成GetSystemDateAndTime xml的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！