Exemplo n.º 1
0
 /// <summary>Reconstructs a permission with a specified state from an XML encoding.</summary>
 /// <param name="elem">The XML encoding to use to reconstruct the permission. </param>
 /// <exception cref="T:System.ArgumentNullException">The <paramref name="elem" /> parameter is null. </exception>
 /// <exception cref="T:System.ArgumentException">The <paramref name="elem" /> parameter is not a valid permission element.-or- The <paramref name="elem" /> parameter's version number is not valid. </exception>
 public void FromXml(SecurityElement elem)
 {
     this.CheckSecurityElement(elem, "elem", 1, 1);
     this.principals.Clear();
     if (elem.Children != null)
     {
         foreach (object obj in elem.Children)
         {
             SecurityElement securityElement = (SecurityElement)obj;
             if (securityElement.Tag != "Identity")
             {
                 throw new ArgumentException("not IPermission/Identity");
             }
             string name            = securityElement.Attribute("ID");
             string role            = securityElement.Attribute("Role");
             string text            = securityElement.Attribute("Authenticated");
             bool   isAuthenticated = false;
             if (text != null)
             {
                 try
                 {
                     isAuthenticated = bool.Parse(text);
                 }
                 catch
                 {
                 }
             }
             PrincipalPermission.PrincipalInfo value = new PrincipalPermission.PrincipalInfo(name, role, isAuthenticated);
             this.principals.Add(value);
         }
     }
 }
Exemplo n.º 2
0
        /// <summary>Creates an XML encoding of the permission and its current state.</summary>
        /// <returns>An XML encoding of the permission, including any state information.</returns>
        public SecurityElement ToXml()
        {
            SecurityElement securityElement = new SecurityElement("Permission");
            Type            type            = base.GetType();

            securityElement.AddAttribute("class", type.FullName + ", " + type.Assembly.ToString().Replace('"', '\''));
            securityElement.AddAttribute("version", 1.ToString());
            foreach (object obj in this.principals)
            {
                PrincipalPermission.PrincipalInfo principalInfo = (PrincipalPermission.PrincipalInfo)obj;
                SecurityElement securityElement2 = new SecurityElement("Identity");
                if (principalInfo.Name != null)
                {
                    securityElement2.AddAttribute("ID", principalInfo.Name);
                }
                if (principalInfo.Role != null)
                {
                    securityElement2.AddAttribute("Role", principalInfo.Role);
                }
                if (principalInfo.IsAuthenticated)
                {
                    securityElement2.AddAttribute("Authenticated", "true");
                }
                securityElement.AddChild(securityElement2);
            }
            return(securityElement);
        }
Exemplo n.º 3
0
        /// <summary>Determines at run time whether the current principal matches the principal specified by the current permission.</summary>
        /// <exception cref="T:System.Security.SecurityException">The current principal does not pass the security check for the principal specified by the current permission.-or- The current <see cref="T:System.Security.Principal.IPrincipal" /> is null. </exception>
        public void Demand()
        {
            IPrincipal currentPrincipal = Thread.CurrentPrincipal;

            if (currentPrincipal == null)
            {
                throw new SecurityException("no Principal");
            }
            if (this.principals.Count > 0)
            {
                bool flag = false;
                foreach (object obj in this.principals)
                {
                    PrincipalPermission.PrincipalInfo principalInfo = (PrincipalPermission.PrincipalInfo)obj;
                    if ((principalInfo.Name == null || principalInfo.Name == currentPrincipal.Identity.Name) && (principalInfo.Role == null || currentPrincipal.IsInRole(principalInfo.Role)) && ((principalInfo.IsAuthenticated && currentPrincipal.Identity.IsAuthenticated) || !principalInfo.IsAuthenticated))
                    {
                        flag = true;
                        break;
                    }
                }
                if (!flag)
                {
                    throw new SecurityException("Demand for principal refused.");
                }
            }
        }
Exemplo n.º 4
0
        /// <summary>Determines whether the current permission is a subset of the specified permission.</summary>
        /// <returns>true if the current permission is a subset of the specified permission; otherwise, false.</returns>
        /// <param name="target">A permission that is to be tested for the subset relationship. This permission must be of the same type as the current permission. </param>
        /// <exception cref="T:System.ArgumentException">The <paramref name="target" /> parameter is an object that is not of the same type as the current permission. </exception>
        public bool IsSubsetOf(IPermission target)
        {
            PrincipalPermission principalPermission = this.Cast(target);

            if (principalPermission == null)
            {
                return(this.IsEmpty());
            }
            if (this.IsUnrestricted())
            {
                return(principalPermission.IsUnrestricted());
            }
            if (principalPermission.IsUnrestricted())
            {
                return(true);
            }
            foreach (object obj in this.principals)
            {
                PrincipalPermission.PrincipalInfo principalInfo = (PrincipalPermission.PrincipalInfo)obj;
                bool flag = false;
                foreach (object obj2 in principalPermission.principals)
                {
                    PrincipalPermission.PrincipalInfo principalInfo2 = (PrincipalPermission.PrincipalInfo)obj2;
                    if ((principalInfo.Name == principalInfo2.Name || principalInfo2.Name == null) && (principalInfo.Role == principalInfo2.Role || principalInfo2.Role == null) && principalInfo.IsAuthenticated == principalInfo2.IsAuthenticated)
                    {
                        flag = true;
                    }
                }
                if (!flag)
                {
                    return(false);
                }
            }
            return(true);
        }
Exemplo n.º 5
0
 /// <summary>Initializes a new instance of the <see cref="T:System.Security.Permissions.PrincipalPermission" /> class with the specified <see cref="T:System.Security.Permissions.PermissionState" />.</summary>
 /// <param name="state">One of the <see cref="T:System.Security.Permissions.PermissionState" /> values. </param>
 /// <exception cref="T:System.ArgumentException">The <paramref name="state" /> parameter is not a valid <see cref="T:System.Security.Permissions.PermissionState" />. </exception>
 public PrincipalPermission(PermissionState state)
 {
     this.principals = new ArrayList();
     if (CodeAccessPermission.CheckPermissionState(state, true) == PermissionState.Unrestricted)
     {
         PrincipalPermission.PrincipalInfo value = new PrincipalPermission.PrincipalInfo(null, null, true);
         this.principals.Add(value);
     }
 }
Exemplo n.º 6
0
        /// <summary>Creates and returns a permission that is the intersection of the current permission and the specified permission.</summary>
        /// <returns>A new permission that represents the intersection of the current permission and the specified permission. This new permission will be null if the intersection is empty.</returns>
        /// <param name="target">A permission to intersect with the current permission. It must be of the same type as the current permission. </param>
        /// <exception cref="T:System.ArgumentException">The <paramref name="target" /> parameter is not null and is not an instance of the same class as the current permission. </exception>
        public IPermission Intersect(IPermission target)
        {
            PrincipalPermission principalPermission = this.Cast(target);

            if (principalPermission == null)
            {
                return(null);
            }
            if (this.IsUnrestricted())
            {
                return(principalPermission.Copy());
            }
            if (principalPermission.IsUnrestricted())
            {
                return(this.Copy());
            }
            PrincipalPermission principalPermission2 = new PrincipalPermission(PermissionState.None);

            foreach (object obj in this.principals)
            {
                PrincipalPermission.PrincipalInfo principalInfo = (PrincipalPermission.PrincipalInfo)obj;
                foreach (object obj2 in principalPermission.principals)
                {
                    PrincipalPermission.PrincipalInfo principalInfo2 = (PrincipalPermission.PrincipalInfo)obj2;
                    if (principalInfo.IsAuthenticated == principalInfo2.IsAuthenticated)
                    {
                        string text = null;
                        if (principalInfo.Name == principalInfo2.Name || principalInfo2.Name == null)
                        {
                            text = principalInfo.Name;
                        }
                        else if (principalInfo.Name == null)
                        {
                            text = principalInfo2.Name;
                        }
                        string text2 = null;
                        if (principalInfo.Role == principalInfo2.Role || principalInfo2.Role == null)
                        {
                            text2 = principalInfo.Role;
                        }
                        else if (principalInfo.Role == null)
                        {
                            text2 = principalInfo2.Role;
                        }
                        if (text != null || text2 != null)
                        {
                            PrincipalPermission.PrincipalInfo value = new PrincipalPermission.PrincipalInfo(text, text2, principalInfo.IsAuthenticated);
                            principalPermission2.principals.Add(value);
                        }
                    }
                }
            }
            return((principalPermission2.principals.Count <= 0) ? null : principalPermission2);
        }
Exemplo n.º 7
0
 /// <summary>Returns a value indicating whether the current permission is unrestricted.</summary>
 /// <returns>true if the current permission is unrestricted; otherwise, false.</returns>
 public bool IsUnrestricted()
 {
     foreach (object obj in this.principals)
     {
         PrincipalPermission.PrincipalInfo principalInfo = (PrincipalPermission.PrincipalInfo)obj;
         if (principalInfo.Name == null && principalInfo.Role == null && principalInfo.IsAuthenticated)
         {
             return(true);
         }
     }
     return(false);
 }
Exemplo n.º 8
0
        /// <summary>Creates a permission that is the union of the current permission and the specified permission.</summary>
        /// <returns>A new permission that represents the union of the current permission and the specified permission.</returns>
        /// <param name="other">A permission to combine with the current permission. It must be of the same type as the current permission. </param>
        /// <exception cref="T:System.ArgumentException">The <paramref name="other" /> parameter is an object that is not of the same type as the current permission. </exception>
        public IPermission Union(IPermission other)
        {
            PrincipalPermission principalPermission = this.Cast(other);

            if (principalPermission == null)
            {
                return(this.Copy());
            }
            if (this.IsUnrestricted() || principalPermission.IsUnrestricted())
            {
                return(new PrincipalPermission(PermissionState.Unrestricted));
            }
            PrincipalPermission principalPermission2 = new PrincipalPermission(this.principals);

            foreach (object obj in principalPermission.principals)
            {
                PrincipalPermission.PrincipalInfo value = (PrincipalPermission.PrincipalInfo)obj;
                principalPermission2.principals.Add(value);
            }
            return(principalPermission2);
        }
Exemplo n.º 9
0
        public override bool Equals(object obj)
        {
            if (obj == null)
            {
                return(false);
            }
            PrincipalPermission principalPermission = obj as PrincipalPermission;

            if (principalPermission == null)
            {
                return(false);
            }
            if (this.principals.Count != principalPermission.principals.Count)
            {
                return(false);
            }
            foreach (object obj2 in this.principals)
            {
                PrincipalPermission.PrincipalInfo principalInfo = (PrincipalPermission.PrincipalInfo)obj2;
                bool flag = false;
                foreach (object obj3 in principalPermission.principals)
                {
                    PrincipalPermission.PrincipalInfo principalInfo2 = (PrincipalPermission.PrincipalInfo)obj3;
                    if ((principalInfo.Name == principalInfo2.Name || principalInfo2.Name == null) && (principalInfo.Role == principalInfo2.Role || principalInfo2.Role == null) && principalInfo.IsAuthenticated == principalInfo2.IsAuthenticated)
                    {
                        flag = true;
                        break;
                    }
                }
                if (!flag)
                {
                    return(false);
                }
            }
            return(true);
        }
Exemplo n.º 10
0
 /// <summary>Initializes a new instance of the <see cref="T:System.Security.Permissions.PrincipalPermission" /> class for the specified <paramref name="name" />, <paramref name="role" />, and authentication status.</summary>
 /// <param name="name">The name of the <see cref="T:System.Security.Principal.IPrincipal" /> object's user. </param>
 /// <param name="role">The role of the <see cref="T:System.Security.Principal.IPrincipal" /> object's user (for example, Administrator). </param>
 /// <param name="isAuthenticated">true to signify that the user is authenticated; otherwise, false. </param>
 public PrincipalPermission(string name, string role, bool isAuthenticated)
 {
     this.principals = new ArrayList();
     PrincipalPermission.PrincipalInfo value = new PrincipalPermission.PrincipalInfo(name, role, isAuthenticated);
     this.principals.Add(value);
 }