Mega Code Archive
CAS Security cpp
<![CDATA[
#include "stdafx.h"
using namespace CASSecurity;
[STAThreadAttribute]
int main(array<System::String ^> ^args)
{
Application::Run(gcnew Form1());
return 0;
}
using namespace System;
using namespace System::ComponentModel;
using namespace System::Collections;
using namespace System::IO;
using namespace System::Windows::Forms;
using namespace System::Data;
using namespace System::Drawing;
using namespace System::Security::Permissions;
public ref class Form1 : public System::Windows::Forms::Form
{
public:
Form1(void)
{
InitializeComponent();
try
{
(gcnew FileIOPermission(FileIOPermissionAccess::Read, "C:\\Test"))->Demand();
}
catch(Exception^)
{
bnReadFile->Enabled = false;
}
try
{
(gcnew FileIOPermission(FileIOPermissionAccess::Write, "C:\\Test"))->Demand();
}
catch(Exception^)
{
bnWriteFile->Enabled = false;
}
}
System::Windows::Forms::Label^ lbOutput;
System::Windows::Forms::Button^ bnWriteFile;
System::Windows::Forms::Button^ bnReadFile;
System::ComponentModel::Container ^components;
void InitializeComponent(void)
{
this->lbOutput = (gcnew System::Windows::Forms::Label());
this->bnWriteFile = (gcnew System::Windows::Forms::Button());
this->bnReadFile = (gcnew System::Windows::Forms::Button());
this->SuspendLayout();
//
// lbOutput
//
this->lbOutput->AutoSize = true;
this->lbOutput->Location = System::Drawing::Point(68, 71);
this->lbOutput->Name = L"lbOutput";
this->lbOutput->Size = System::Drawing::Size(0, 13);
this->lbOutput->TabIndex = 5;
//
// bnWriteFile
//
this->bnWriteFile->Location = System::Drawing::Point(170, 30);
this->bnWriteFile->Name = L"bnWriteFile";
this->bnWriteFile->Size = System::Drawing::Size(75, 23);
this->bnWriteFile->TabIndex = 4;
this->bnWriteFile->Text = L"Write File";
this->bnWriteFile->UseVisualStyleBackColor = true;
this->bnWriteFile->Click +=
gcnew System::EventHandler(this, &Form1::bnWriteFile_Click);
//
// bnReadFile
//
this->bnReadFile->Location = System::Drawing::Point(48, 30);
this->bnReadFile->Name = L"bnReadFile";
this->bnReadFile->Size = System::Drawing::Size(75, 23);
this->bnReadFile->TabIndex = 3;
this->bnReadFile->Text = L"Read File";
this->bnReadFile->UseVisualStyleBackColor = true;
this->bnReadFile->Click +=
gcnew System::EventHandler(this, &Form1::bnReadFile_Click);
//
// Form1
//
this->AutoScaleDimensions = System::Drawing::SizeF(6, 13);
this->AutoScaleMode = System::Windows::Forms::AutoScaleMode::Font;
this->ClientSize = System::Drawing::Size(292, 110);
this->Controls->Add(this->lbOutput);
this->Controls->Add(this->bnWriteFile);
this->Controls->Add(this->bnReadFile);
this->Name = L"Form1";
this->Text = L"CAS Security Test";
this->ResumeLayout(false);
this->PerformLayout();
}
System::Void bnReadFile_Click(System::Object^ sender,
System::EventArgs^ e)
{
StreamReader ^sr = File::OpenText("C:\\Test\\TestFile.txt");
String ^s = sr->ReadLine();
sr->Close();
lbOutput->Text = s;
}
System::Void bnWriteFile_Click(System::Object^ sender,
System::EventArgs^ e)
{
StreamWriter ^sw = File::CreateText("C:\\Test\\TestFile.txt");
sw->WriteLine("This is a test. This is only a test.");
sw->Close();
lbOutput->Text = "Wrote text to file.";
}
};
]]>