/
Default.aspx.cs
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Default.aspx.cs
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using System;
using System.Data;
using System.Text;
using System.Web.UI;
using System.Web.UI.WebControls;
namespace Demo
{
public partial class Default : Page
{
private const int MaximumRowCount = 500;
private DataTable Granted
{
get
{
object value = Session["Granted"] as DataTable;
if (value == null)
Session["Granted"] = CreateTable();
return (DataTable)Session["Granted"];
}
set { Session["Granted"] = value; }
}
private DataTable Denied
{
get
{
object value = Session["Denied"] as DataTable;
if (value == null)
Session["Denied"] = CreateTable();
return (DataTable)Session["Denied"];
}
set { Session["Denied"] = value; }
}
protected void Page_Init(object sender, EventArgs e)
{
LoadGrantedFromCsv.Click += LoadGrantedFromCsv_Click;
LoadDeniedFromCsv.Click += LoadDeniedFromCsv_Click;
ResetGrantedAndDenied.Click += Reset_Click;
GrantPermission.Click += GrantPermission_Click;
RevokePermission.Click += RevokePermission_Click;
DenyPermission.Click += DenyPermission_Click;
CheckPermission.Click += CheckPermission_Click;
}
protected void Page_Load(object sender, EventArgs e)
{
BindPermissions();
}
void AddNewRow(DataTable table)
{
var row = table.NewRow();
row["Principal"] = AclPrincipal.Text;
row["Operation"] = AclOperation.Text;
row["Resource"] = AclResource.Text;
table.Rows.Add(row);
}
private void BindPermissions()
{
var grantCount = Granted.Rows.Count;
var denyCount = Denied.Rows.Count;
LoadFooter.Visible = grantCount > 0;
LoadGrantedFromCsv.Enabled = grantCount == 0;
LoadDeniedFromCsv.Enabled = grantCount > 0 && denyCount == 0;
ResetGrantedAndDenied.Enabled = grantCount > 0;
CheckPermission.Enabled = grantCount > 0;
GrantedPanel.Visible = grantCount > 0;
DeniedPanel.Visible = denyCount > 0;
if (grantCount > 0)
{
TableRowCount.Text = string.Format("{0:n0}", grantCount);
TableSize.Text = string.Format("{0:n0}", Granted.SizeInBytes()/1024);
BindPermissionsGrid(GrantedGrid, Granted);
}
if (denyCount > 0)
BindPermissionsGrid(DeniedGrid, Denied);
}
private static void BindPermissionsGrid(GridView grid, DataTable table)
{
if (table != null)
{
grid.BorderWidth = 0;
grid.BorderStyle = BorderStyle.None;
grid.GridLines = GridLines.None;
grid.DataSource = table;
grid.DataBind();
if (table.Rows.Count > 0)
grid.HeaderRow.TableSection = TableRowSection.TableHeader;
}
}
void CheckPermission_Click(object sender, EventArgs e)
{
IAccessControlList acl = new AccessControlList();
AccessControlListAdapter.Load(acl, Granted, Denied);
var roles = CheckRoles.Text.Split(new[] {','}, StringSplitOptions.RemoveEmptyEntries);
if (acl.IsDenied(roles, CheckOperation.Text, CheckResource.Text))
{
StatusMessage.InnerText = "Access Denied: " + acl.Explain(roles, CheckOperation.Text, CheckResource.Text);
StatusMessage.Attributes["class"] = "alert alert-danger";
}
else if (acl.IsGranted(roles, CheckOperation.Text, CheckResource.Text))
{
StatusMessage.InnerText = "Access Granted: " + acl.Explain(roles, CheckOperation.Text, CheckResource.Text);
StatusMessage.Attributes["class"] = "alert alert-success";
}
else
{
StatusMessage.InnerText = string.Format( "Access Denied: Permission is not granted to any of the user roles in this set ({2}) for operation {0} on resource {1}", CheckOperation.Text, CheckResource.Text, CheckRoles.Text);
StatusMessage.Attributes["class"] = "alert alert-warning";
}
StatusMessage.Visible = true;
}
static DataTable CreateTable()
{
var table = new DataTable();
table.Columns.Add("Principal");
table.Columns.Add("Operation");
table.Columns.Add("Resource");
table.Columns.Add("Comment");
return table;
}
private static UploadModel CreateTableFromCsvFile(FileUpload upload)
{
var model = new UploadModel();
if (!upload.HasFile)
{
model.Error = "Please select a file to upload.";
model.Table = null;
}
else
{
var csv = new CsvHelper();
csv.Read(upload.PostedFile.InputStream, Encoding.UTF8);
if (!csv.Table.Columns.Contains("Principal"))
model.Error = "Missing Column: Principal";
if (!csv.Table.Columns.Contains("Operation"))
model.Error = "Missing Column: Operation";
if (!csv.Table.Columns.Contains("Resource"))
model.Error = "Missing Column: Resource";
if (csv.Table.Rows.Count > MaximumRowCount)
model.Error = string.Format("This test harness is intended for small data sets only. Please limit the size of your file to {0} rows or less.", MaximumRowCount);
model.Table = csv.Table;
}
return model;
}
void DenyPermission_Click(object sender, EventArgs e)
{
AddNewRow(Denied);
BindPermissions();
}
void GrantPermission_Click(object sender, EventArgs e)
{
AddNewRow(Granted);
BindPermissions();
}
private void LoadDeniedFromCsv_Click(object sender, EventArgs e)
{
var model = CreateTableFromCsvFile(UploadCsv);
if (model.Table != null)
{
Denied = model.Table;
BindPermissions();
}
else
{
StatusMessage.InnerHtml = model.Error;
StatusMessage.Visible = true;
}
}
private void LoadGrantedFromCsv_Click(object sender, EventArgs e)
{
var model = CreateTableFromCsvFile(UploadCsv);
if (model.Table != null)
{
Granted = model.Table;
BindPermissions();
}
else
{
StatusMessage.InnerHtml = model.Error;
StatusMessage.Visible = true;
}
}
private void Reset_Click(object sender, EventArgs e)
{
Granted = null;
Denied = null;
BindPermissions();
}
void RevokePermission_Click(object sender, EventArgs e)
{
var p = StringHelper.Quote(AclPrincipal.Text);
var o = StringHelper.Quote(AclOperation.Text);
var r = StringHelper.Quote(AclResource.Text);
var filter = string.Format("Principal = '{0}' AND Operation = '{1}' AND Resource = '{2}'", p, o, r);
var rows = Granted.Select(filter);
foreach (var row in rows)
row.Delete();
Granted.AcceptChanges();
rows = Denied.Select(filter);
foreach (var row in rows)
row.Delete();
Denied.AcceptChanges();
BindPermissions();
}
}
}