Commit for development environment setup

PROMS/csla20cs-2.1.4-070223/csla20cs/OLDcsla20cs/Csla/Security/RolesForProperty.cs

@@ -0,0 +1,122 @@
+using System;
+using System.Collections.Generic;
+using System.Security.Principal;
+using System.ComponentModel;
+
+namespace Csla.Security
+{
+
+  /// <summary>
+  /// Maintains a list of allowed and denied
+  /// user roles for a specific property.
+  /// </summary>
+  /// <remarks></remarks>
+  [Serializable()]
+  internal class RolesForProperty
+  {
+    private List<string> _readAllowed = new List<string>();
+    private List<string> _readDenied = new List<string>();
+    private List<string> _writeAllowed = new List<string>();
+    private List<string> _writeDenied = new List<string>();
+
+    /// <summary>
+    /// Returns a List(Of string) containing the list
+    /// of roles allowed read access.
+    /// </summary>
+    public List<string> ReadAllowed
+    {
+      get { return _readAllowed; }
+    }
+
+    /// <summary>
+    /// Returns a List(Of string) containing the list
+    /// of roles denied read access.
+    /// </summary>
+    public List<string> ReadDenied
+    {
+      get { return _readDenied; }
+    }
+
+    /// <summary>
+    /// Returns a List(Of string) containing the list
+    /// of roles allowed write access.
+    /// </summary>
+    public List<string> WriteAllowed
+    {
+      get { return _writeAllowed; }
+    }
+
+    /// <summary>
+    /// Returns a List(Of string) containing the list
+    /// of roles denied write access.
+    /// </summary>
+    public List<string> WriteDenied
+    {
+      get { return _writeDenied; }
+    }
+
+    /// <summary>
+    /// Returns <see langword="true" /> if the user is in a role
+    /// explicitly allowed read access.
+    /// </summary>
+    /// <param name="principal">A <see cref="System.Security.Principal.IPrincipal" />
+    /// representing the user.</param>
+    /// <returns><see langword="true" /> if the user is allowed read access.</returns>
+    /// <remarks></remarks>
+    public bool IsReadAllowed(IPrincipal principal)
+    {
+      foreach (string role in ReadAllowed)
+        if (principal.IsInRole(role))
+          return true;
+      return false;
+    }
+
+    /// <summary>
+    /// Returns <see langword="true" /> if the user is in a role
+    /// explicitly denied read access.
+    /// </summary>
+    /// <param name="principal">A <see cref="System.Security.Principal.IPrincipal" />
+    /// representing the user.</param>
+    /// <returns><see langword="true" /> if the user is denied read access.</returns>
+    /// <remarks></remarks>
+    public bool IsReadDenied(IPrincipal principal)
+    {
+      foreach (string role in ReadDenied)
+        if (principal.IsInRole(role))
+          return true;
+      return false;
+    }
+
+    /// <summary>
+    /// Returns <see langword="true" /> if the user is in a role
+    /// explicitly allowed write access.
+    /// </summary>
+    /// <param name="principal">A <see cref="System.Security.Principal.IPrincipal" />
+    /// representing the user.</param>
+    /// <returns><see langword="true" /> if the user is allowed write access.</returns>
+    /// <remarks></remarks>
+    public bool IsWriteAllowed(IPrincipal principal)
+    {
+      foreach (string role in WriteAllowed)
+        if (principal.IsInRole(role))
+          return true;
+      return false;
+    }
+
+    /// <summary>
+    /// Returns <see langword="true" /> if the user is in a role
+    /// explicitly denied write access.
+    /// </summary>
+    /// <param name="principal">A <see cref="System.Security.Principal.IPrincipal" />
+    /// representing the user.</param>
+    /// <returns><see langword="true" /> if the user is denied write access.</returns>
+    /// <remarks></remarks>
+    public bool IsWriteDenied(IPrincipal principal)
+    {
+      foreach (string role in WriteDenied)
+        if (principal.IsInRole(role))
+          return true;
+      return false;
+    }
+  }
+}