XmlSecureResolver Constructor

Initializes a new instance of the XmlSecureResolver class.

Overload List

Initializes a new instance of the XmlSecureResolver class with the XmlResolver and System.Security.Policy.Evidence specified.

[Visual Basic] Public Sub New(XmlResolver, Evidence)

[C#] public XmlSecureResolver(XmlResolver, Evidence);

[C++] public: XmlSecureResolver(XmlResolver*, Evidence*);

[JScript] public function XmlSecureResolver(XmlResolver, Evidence);

Initializes a new instance of the XmlSecureResolver class with the XmlResolver and System.Security.PermissionSet specified.

[Visual Basic] Public Sub New(XmlResolver, PermissionSet)

[C#] public XmlSecureResolver(XmlResolver, PermissionSet);

[C++] public: XmlSecureResolver(XmlResolver*, PermissionSet*);

[JScript] public function XmlSecureResolver(XmlResolver, PermissionSet);

Initializes a new instance of the XmlSecureResolver class with the XmlResolver and URL provided.

[Visual Basic] Public Sub New(XmlResolver, String)

[C#] public XmlSecureResolver(XmlResolver, string);

[C++] public: XmlSecureResolver(XmlResolver*, String*);

[JScript] public function XmlSecureResolver(XmlResolver, String);

Example

[Visual Basic, C#, C++] The following example constructs an XmlSecureResolver object using a customized permission set.

[Visual Basic, C#, C++] Note   This example shows how to use one of the overloaded versions of the XmlSecureResolver constructor. For other examples that might be available, see the individual overload topics.

[Visual Basic] 

   public shared function GetFile (fileURL as String , resolver as XmlResolver) as Object
    
     '  Generate the default PermissionSet using the file URL.
     Dim evidence as Evidence = XmlSecureResolver.CreateEvidenceForUrl(fileURL)
     Dim myPermissions as PermissionSet = SecurityManager.ResolvePolicy(evidence)

     '  Modify the PermissionSet to only allow access to http://www.contoso.com.
     '  Create a WebPermission that only allows access to http://www.contoso.com.
     Dim myWebPermission as WebPermission = new WebPermission(NetworkAccess.Connect, "http://www.contoso.com")
     '  Replace the existing WebPermission in myPermissions with the updated WebPermission.
     myPermissions.SetPermission(myWebPermission)

     '  Use the modified PermissionSet to construct the XmlSecureResolver.
     Dim sResolver as XmlSecureResolver = new XmlSecureResolver(resolver, myPermissions)

     '  Get the object.
     Dim fullUri as Uri = sResolver.ResolveUri(nothing, fileURL)
     return sResolver.GetEntity(fullUri, nothing, nothing)
   end function 

[C#] 

   public static Object GetFile (String fileURL, XmlResolver resolver) {
    
     // Generate the default PermissionSet using the file URL.
     Evidence evidence = XmlSecureResolver.CreateEvidenceForUrl(fileURL);
     PermissionSet myPermissions = SecurityManager.ResolvePolicy(evidence);

     // Modify the PermissionSet to only allow access to http://www.contoso.com.
     // Create a WebPermission which only allows access to http://www.contoso.com.
     WebPermission myWebPermission = new WebPermission(NetworkAccess.Connect, "http://www.contoso.com");
     // Replace the existing WebPermission in myPermissions with the updated WebPermission.
     myPermissions.SetPermission(myWebPermission);

     // Use the modified PermissionSet to construct the XmlSecureResolver.
     XmlSecureResolver sResolver = new XmlSecureResolver(resolver, myPermissions);

     // Get the object.
     Uri fullUri = sResolver.ResolveUri(null, fileURL);
     return sResolver.GetEntity(fullUri, null, null);
   } 

[C++] 

Object* GetFile (String* fileURL, XmlResolver* resolver) {

    // Generate the default PermissionSet using the file URL.
    Evidence* evidence = XmlSecureResolver::CreateEvidenceForUrl(fileURL);
    PermissionSet* myPermissions = SecurityManager::ResolvePolicy(evidence);

    // Modify the PermissionSet to only allow access to http://www.contoso.com.
    // Create a WebPermission which only allows access to http://www.contoso.com.
    WebPermission* myWebPermission = new WebPermission(NetworkAccess::Connect, S"http://www.contoso.com");
    // Replace the existing WebPermission in myPermissions with the updated WebPermission.
    myPermissions->SetPermission(myWebPermission);

    // Use the modified PermissionSet to construct the XmlSecureResolver.
    XmlSecureResolver* sResolver = new XmlSecureResolver(resolver, myPermissions);

    // Get the object.
    Uri* fullUri = sResolver->ResolveUri(0, fileURL);
    return sResolver->GetEntity(fullUri, 0, 0);
} 

[JScript] No example is available for JScript. To view a Visual Basic, C#, or C++ example, click the Language Filter button in the upper-left corner of the page.

See Also

XmlSecureResolver Class | XmlSecureResolver Members | System.Xml Namespace