c# - ServiceDescription 未读取 protected wsdl

Question

我有一个 C# 代码，基本上读取传递的 WSDL 以动态生成程序集，然后我们访问该服务的所有方法和属性。

/// <summary>
/// Builds an assembly from a web service description.
/// The assembly can be used to execute the web service methods.
/// </summary>
/// <param name="webServiceUri">Location of WSDL.</param>
/// <returns>A web service assembly.</returns>
private Assembly BuildAssemblyFromWSDL(Uri webServiceUri)
{
    if (String.IsNullOrEmpty(webServiceUri.ToString()))
        throw new Exception("Web Service Not Found");

    XmlTextReader xmlreader = new XmlTextReader(webServiceUri.ToString() + "?wsdl");

    ServiceDescriptionImporter descriptionImporter = BuildServiceDescriptionImporter(xmlreader);

    return CompileAssembly(descriptionImporter);
}

/// <summary>
/// Builds the web service description importer, which allows us to generate a proxy class based on the 
/// content of the WSDL described by the XmlTextReader.
/// </summary>
/// <param name="xmlreader">The WSDL content, described by XML.</param>
/// <returns>A ServiceDescriptionImporter that can be used to create a proxy class.</returns>
private ServiceDescriptionImporter BuildServiceDescriptionImporter(XmlTextReader xmlreader)
{
    // make sure xml describes a valid wsdl
    if (!ServiceDescription.CanRead(xmlreader))
        throw new Exception("Invalid Web Service Description");

    // parse wsdl
    ServiceDescription serviceDescription = ServiceDescription.Read(xmlreader);

    // build an importer, that assumes the SOAP protocol, client binding, and generates properties
    ServiceDescriptionImporter descriptionImporter = new ServiceDescriptionImporter();
    descriptionImporter.ProtocolName = "Soap";
    descriptionImporter.AddServiceDescription(serviceDescription, null, null);
    descriptionImporter.Style = ServiceDescriptionImportStyle.Client;
    descriptionImporter.CodeGenerationOptions = System.Xml.Serialization.CodeGenerationOptions.GenerateProperties;

    return descriptionImporter;
}

这段代码适用于所有 wsdl， protected 或安全的除外。代码在 if (!ServiceDescription.CanRead(xmlreader)) 行失败，因为它无法访问传递的服务 wsdl。当我尝试在浏览器中访问 url 时，出现 500:服务器错误。当我使用适当的身份验证登录到我们的 Web 应用程序时，如果我复制 url，则使用相同的 session - 我可以访问 wsdl。仅供引用，在不同的应用程序中，我们通过传递带有服务用户 ID/密码的 SM Cookie 来动态调用此服务。

话虽如此，我该怎么做，动态访问 protected wsdl？传递cookie信息访问wsdl需要做哪些改动？有什么想法吗？

Answer 1

private Assembly BuildAssemblyFromWSDL(Uri webServiceUri)
{    
    if (String.IsNullOrEmpty(webServiceUri.ToString()))        
        throw new Exception("Web Service Not Found");    

    HttpWebRequest wr = (HttpWebRequest)HttpWebRequest.Create(webServiceUri.OriginalString + "?wsdl");
    wr.Credentials = new NetworkCredential("username", "password"); //replace with your credentials
    HttpWebResponse wres = (HttpWebResponse)wr.GetResponse();

    XmlTextReader xmlreader = new XmlTextReader(wres.GetResponseStream());       

    ServiceDescriptionImporter descriptionImporter = BuildServiceDescriptionImporter(xmlreader);    
    return CompileAssembly(descriptionImporter);
}

这将允许您在获取 wsdl 之前传递凭据