в 15:31, 26 мая 2010

2010-05-26T15:31:19Z

Admin: 1 версия

2010-05-26T11:43:00Z

1 версия

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==Demand FileIOPermissionAccess.AllAccess==

<source lang="csharp">
using System;
using System.Collections.Generic;
using System.ruponentModel;
using System.Data;
using System.Drawing;
using System.Windows.Forms;
using System.Security;
using System.Security.Permissions;
public class MainClass {
public static void Main() {
try {
FileIOPermission fileIOPermission = new FileIOPermission(FileIOPermissionAccess.AllAccess, @"c:\");
fileIOPermission.Demand();
} catch (SecurityException) {

}
}
}

</source>

==FileSecurity==

<source lang="csharp">
using System;
using System.IO;
using System.Security.AccessControl;
class MainClass {
static void Main(string[] args) {
FileStream stream;
string fileName;
fileName = Path.GetRandomFileName();
using (stream = new FileStream(fileName, FileMode.Create)) {
// Do something.
}
SetRule(fileName, "Everyone", FileSystemRights.Read, AccessControlType.Deny);
try {
stream = new FileStream(fileName, FileMode.Create);
} catch (Exception ex) {
Console.WriteLine(ex.ToString());
} finally {
stream.Close();
stream.Dispose();
}
}
static void AddRule(string filePath, string account, FileSystemRights rights, AccessControlType controlType) {
FileSecurity fSecurity = File.GetAccessControl(filePath);
fSecurity.AddAccessRule(new FileSystemAccessRule(account, rights, controlType));
File.SetAccessControl(filePath, fSecurity);
}
static void SetRule(string filePath, string account, FileSystemRights rights, AccessControlType controlType) {
FileSecurity fSecurity = File.GetAccessControl(filePath);
fSecurity.ResetAccessRule(new FileSystemAccessRule(account, rights, controlType));
File.SetAccessControl(filePath, fSecurity);
}
}

</source>

==FileSystemRights.Read==

<source lang="csharp">

using System;
using System.IO;
using System.Security.AccessControl;
class MainClass {
static void Main(string[] args) {
FileStream stream;
string fileName = Path.GetRandomFileName();
using (stream = new FileStream(fileName, FileMode.Create)) {
}
SetRule(fileName, "Everyone", FileSystemRights.Read, AccessControlType.Deny);
try {
stream = new FileStream(fileName, FileMode.Create);
} catch (Exception ex) {
Console.WriteLine(ex.ToString());
} finally {
stream.Close();
stream.Dispose();
}
}
static void AddRule(string filePath, string account, FileSystemRights rights, AccessControlType controlType) {
FileSecurity fSecurity = File.GetAccessControl(filePath);
fSecurity.AddAccessRule(new FileSystemAccessRule(account, rights, controlType));
File.SetAccessControl(filePath, fSecurity);
}
static void SetRule(string filePath, string account, FileSystemRights rights, AccessControlType controlType) {
FileSecurity fSecurity = File.GetAccessControl(filePath);
fSecurity.ResetAccessRule(new FileSystemAccessRule(account, rights, controlType));
File.SetAccessControl(filePath, fSecurity);
}
}

</source>

==Use SecurityManager to check the FileIOPermissionAccess.Write==

<source lang="csharp">
using System;
using System.Security;
using System.Security.Permissions;
class MainClass {
public static void Main() {
FileIOPermission fileIOPerm = new FileIOPermission(FileIOPermissionAccess.Write, @"C:\Data");
Console.WriteLine(SecurityManager.IsGranted(fileIOPerm));
}
}

</source>

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Csharp/C Sharp/Windows/File Security Permission - История изменений

в 15:31, 26 мая 2010

Admin: 1 версия