如何生成 GetSystemDateAndTime xml

Question

中获取了以下代码

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...

当我运行 wireshark 在调试器中通过 GetProfiles() 部分时，我看到生成的 XML 看起来像：

需要什么代码才能将 xml 更改为：

我该如何调用 GetSystemDateAndTime 函数？

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

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

编辑：

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

您需要先将设备管理 wsdl 添加到您连接的服务中： https://www.onvif.org/ver10/device/wsdl/devicemgmt.wsdl

我还在那里添加了 System.Net.ServicePointManager.Expect100Continue = false; 因为我看到有人说它对 this link 有帮助...

所以我补充说：

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：我仍然收到错误消息：

        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

Answer 1

这个错误是说尝试阅读消息时出现问题，所以我认为这可能是由于某种编码引起的...

我是对的！！

我所要做的就是更改 TextMessageEncodingBindingElement 创建时的参数。

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

您需要做的就是确保您拥有良好的 encoding 和 AuthenticationScheme...

这是我获取 onvif 摄像头（这里是 cohuHD 摄像头）系统以及日期和时间设置的最终代码：

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：

如果您想执行需要凭证的功能，您可以像这样将它们添加到您的 deviceClient：

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

还要注意 EndpointAddress' URL...我认为有些相机使用 Device_service 和其他 device_service .

如何生成 GetSystemDateAndTime xml

How to generate GetSystemDateAndTime xml

c#

wsdl

onvif

visual-studio-2017