Пример #1
0
        public Dictionary <string, SecurityDescriptor> QueryHttpNamespaceAcls()
        {
            Dictionary <string, SecurityDescriptor> nsTable = new Dictionary <string, SecurityDescriptor>();

            HTTP_SERVICE_CONFIG_URLACL_QUERY query = new HTTP_SERVICE_CONFIG_URLACL_QUERY {
                QueryDesc = HTTP_SERVICE_CONFIG_QUERY_TYPE.HttpServiceConfigQueryNext
            };

            IntPtr pQuery = Marshal.AllocHGlobal(Marshal.SizeOf(query));

            try
            {
                uint retval;
                for (query.dwToken = 0;; query.dwToken++)
                {
                    Marshal.StructureToPtr(query, pQuery, false);

                    try
                    {
                        uint returnSize = 0;

                        // Get Size
                        retval = HttpQueryServiceConfiguration(IntPtr.Zero, HTTP_SERVICE_CONFIG_ID.HttpServiceConfigUrlAclInfo, pQuery, (uint)Marshal.SizeOf(query), IntPtr.Zero, 0, ref returnSize, IntPtr.Zero);

                        if (retval == ERROR_NO_MORE_ITEMS)
                        {
                            break;
                        }
                        if (retval != ERROR_INSUFFICIENT_BUFFER)
                        {
                            throw new Exception("HttpQueryServiceConfiguration returned unexpected error code.");
                        }

                        IntPtr pConfig = Marshal.AllocHGlobal((IntPtr)returnSize);

                        try
                        {
                            retval = HttpQueryServiceConfiguration(IntPtr.Zero, HTTP_SERVICE_CONFIG_ID.HttpServiceConfigUrlAclInfo, pQuery, (uint)Marshal.SizeOf(query), pConfig, returnSize, ref returnSize, IntPtr.Zero);

                            if (retval == NO_ERROR)
                            {
                                HTTP_SERVICE_CONFIG_URLACL_SET config = (HTTP_SERVICE_CONFIG_URLACL_SET)Marshal.PtrToStructure(pConfig, typeof(HTTP_SERVICE_CONFIG_URLACL_SET));

                                nsTable.Add(config.KeyDesc.pUrlPrefix, SecurityDescriptor.SecurityDescriptorFromString(config.ParamDesc.pStringSecurityDescriptor));
                            }
                        }
                        finally
                        {
                            Marshal.FreeHGlobal(pConfig);
                        }
                    }
                    finally
                    {
                        Marshal.DestroyStructure(pQuery, typeof(HTTP_SERVICE_CONFIG_URLACL_QUERY));
                    }
                }

                if (retval != ERROR_NO_MORE_ITEMS)
                {
                    throw new Exception("HttpQueryServiceConfiguration returned unexpected error code.");
                }
            }
            finally
            {
                Marshal.FreeHGlobal(pQuery);
            }

            return(nsTable);
        }