//
// X509CertificateCas.cs - CAS unit tests for 
//	System.Security.Cryptography.X509Certificates.X509CertificateCas
//
// Author:
//	Sebastien Pouliot  <sebastien@ximian.com>
//
// Copyright (C) 2005 Novell, Inc (http://www.novell.com)
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
// 
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//

using NUnit.Framework;

using System;
using System.Globalization;
using System.IO;
using System.Runtime.InteropServices;
using System.Security;
using System.Security.Cryptography.X509Certificates;
using System.Security.Permissions;
using System.Threading;

namespace MonoCasTests.System.Security.Cryptography.X509Certificates {

	[TestFixture]
	[Category ("CAS")]
	public class X509CertificateCas {

		private static readonly byte[] cert = { 0x30,0x82,0x01,0xFF,0x30,0x82,0x01,0x6C,0x02,0x05,0x02,0x72,0x00,0x06,0xE8,0x30,0x0D,0x06,0x09,0x2A,0x86,0x48,0x86,0xF7,0x0D,0x01,0x01,0x02,0x05,0x00,0x30,0x5F,0x31,0x0B,0x30,0x09,0x06,0x03,0x55,0x04,0x06,0x13,0x02,0x55,0x53,0x31,0x20,0x30,0x1E,0x06,0x03,0x55,0x04,0x0A,0x13,0x17,0x52,0x53,0x41,0x20,0x44,0x61,0x74,0x61,0x20,0x53,0x65,0x63,0x75,0x72,0x69,0x74,0x79,0x2C,0x20,0x49,0x6E,0x63,0x2E,0x31,0x2E,0x30,0x2C,0x06,0x03,0x55,0x04,0x0B,0x13,0x25,0x53,0x65,0x63,0x75,0x72,0x65,0x20,0x53,0x65,0x72,0x76,
			0x65,0x72,0x20,0x43,0x65,0x72,0x74,0x69,0x66,0x69,0x63,0x61,0x74,0x69,0x6F,0x6E,0x20,0x41,0x75,0x74,0x68,0x6F,0x72,0x69,0x74,0x79,0x30,0x1E,0x17,0x0D,0x39,0x36,0x30,0x33,0x31,0x32,0x31,0x38,0x33,0x38,0x34,0x37,0x5A,0x17,0x0D,0x39,0x37,0x30,0x33,0x31,0x32,0x31,0x38,0x33,0x38,0x34,0x36,0x5A,0x30,0x61,0x31,0x0B,0x30,0x09,0x06,0x03,0x55,0x04,0x06,0x13,0x02,0x55,0x53,0x31,0x13,0x30,0x11,0x06,0x03,0x55,0x04,0x08,0x13,0x0A,0x43,0x61,0x6C,0x69,0x66,0x6F,0x72,0x6E,0x69,0x61,0x31,0x14,0x30,0x12,0x06,0x03,
			0x55,0x04,0x0A,0x13,0x0B,0x43,0x6F,0x6D,0x6D,0x65,0x72,0x63,0x65,0x4E,0x65,0x74,0x31,0x27,0x30,0x25,0x06,0x03,0x55,0x04,0x0B,0x13,0x1E,0x53,0x65,0x72,0x76,0x65,0x72,0x20,0x43,0x65,0x72,0x74,0x69,0x66,0x69,0x63,0x61,0x74,0x69,0x6F,0x6E,0x20,0x41,0x75,0x74,0x68,0x6F,0x72,0x69,0x74,0x79,0x30,0x70,0x30,0x0D,0x06,0x09,0x2A,0x86,0x48,0x86,0xF7,0x0D,0x01,0x01,0x01,0x05,0x00,0x03,0x5F,0x00,0x30,0x5C,0x02,0x55,0x2D,0x58,0xE9,0xBF,0xF0,0x31,0xCD,0x79,0x06,0x50,0x5A,0xD5,0x9E,0x0E,0x2C,0xE6,0xC2,0xF7,0xF9,
			0xD2,0xCE,0x55,0x64,0x85,0xB1,0x90,0x9A,0x92,0xB3,0x36,0xC1,0xBC,0xEA,0xC8,0x23,0xB7,0xAB,0x3A,0xA7,0x64,0x63,0x77,0x5F,0x84,0x22,0x8E,0xE5,0xB6,0x45,0xDD,0x46,0xAE,0x0A,0xDD,0x00,0xC2,0x1F,0xBA,0xD9,0xAD,0xC0,0x75,0x62,0xF8,0x95,0x82,0xA2,0x80,0xB1,0x82,0x69,0xFA,0xE1,0xAF,0x7F,0xBC,0x7D,0xE2,0x7C,0x76,0xD5,0xBC,0x2A,0x80,0xFB,0x02,0x03,0x01,0x00,0x01,0x30,0x0D,0x06,0x09,0x2A,0x86,0x48,0x86,0xF7,0x0D,0x01,0x01,0x02,0x05,0x00,0x03,0x7E,0x00,0x54,0x20,0x67,0x12,0xBB,0x66,0x14,0xC3,0x26,0x6B,0x7F,
			0xDA,0x4A,0x25,0x4D,0x8B,0xE0,0xFD,0x1E,0x53,0x6D,0xAC,0xA2,0xD0,0x89,0xB8,0x2E,0x90,0xA0,0x27,0x43,0xA4,0xEE,0x4A,0x26,0x86,0x40,0xFF,0xB8,0x72,0x8D,0x1E,0xE7,0xB7,0x77,0xDC,0x7D,0xD8,0x3F,0x3A,0x6E,0x55,0x10,0xA6,0x1D,0xB5,0x58,0xF2,0xF9,0x0F,0x2E,0xB4,0x10,0x55,0x48,0xDC,0x13,0x5F,0x0D,0x08,0x26,0x88,0xC9,0xAF,0x66,0xF2,0x2C,0x9C,0x6F,0x3D,0xC3,0x2B,0x69,0x28,0x89,0x40,0x6F,0x8F,0x35,0x3B,0x9E,0xF6,0x8E,0xF1,0x11,0x17,0xFB,0x0C,0x98,0x95,0xA1,0xC2,0xBA,0x89,0x48,0xEB,0xB4,0x06,0x6A,0x22,0x54,
			0xD7,0xBA,0x18,0x3A,0x48,0xA6,0xCB,0xC2,0xFD,0x20,0x57,0xBC,0x63,0x1C };

		private CultureInfo oldcult;
		private string temppath;
		private string certfile;
		private string signedfile;

		private void WriteFile (string filename, byte[] data)
		{
			using (FileStream fs = File.OpenWrite (filename)) {
				fs.Write (data, 0, data.Length);
				fs.Close ();
			}
		}

		[TestFixtureSetUp]
		public void FixtureSetUp ()
		{
			// the current culture determines the result of formatting
			oldcult = Thread.CurrentThread.CurrentCulture;
			Thread.CurrentThread.CurrentCulture = new CultureInfo ("");

			temppath = Path.GetTempPath ();
			certfile = Path.Combine (temppath, "temp.cer");
			signedfile = Path.Combine (temppath, "temp.exe");

			WriteFile (certfile, cert);
			WriteFile (signedfile, MonoTests.System.Security.Cryptography.X509Certificates.SoftwarePublisherCertificateTest.smallspcexe);
		}

		[SetUp]
		public void SetUp ()
		{
			if (!SecurityManager.SecurityEnabled)
				Assert.Ignore ("SecurityManager.SecurityEnabled is OFF");
		}

		[TearDown]
		public void TearDown () 
		{
			Thread.CurrentThread.CurrentCulture = oldcult;
		}

		[TestFixtureTearDown]
		public void FixtureTearDown ()
		{
			Thread.CurrentThread.CurrentCulture = oldcult;

			if (File.Exists (certfile))
				File.Delete (certfile);
			if (File.Exists (signedfile))
				File.Delete (signedfile);
		}

		// Partial Trust Tests - i.e. call "normal" unit with reduced privileges

		[Test]
		[PermissionSet (SecurityAction.Deny, Unrestricted = true)]
		public void PartialTrust_DenyUnrestricted ()
		{
			X509Certificate x509 = new X509Certificate (cert);
			X509Certificate clone = new X509Certificate (x509);

			Assert.IsTrue (x509.Equals (clone), "Equals 1");
			Assert.IsTrue (clone.Equals (x509), "Equals 2");

			byte[] hash = { 0xD6,0x2F,0x48,0xD0,0x13,0xEE,0x7F,0xB5,0x8B,0x79,0x07,0x45,0x12,0x67,0x0D,0x9C,0x5B,0x3A,0x5D,0xA9 };
			Assert.AreEqual (hash, x509.GetCertHash (), "GetCertHash");
			Assert.AreEqual ("D62F48D013EE7FB58B79074512670D9C5B3A5DA9", x509.GetCertHashString (), "GetCertHashString");
			Assert.AreEqual ("03/12/1996 10:38:47", x509.GetEffectiveDateString (), "GetEffectiveDateString");
			Assert.AreEqual ("03/12/1997 10:38:46", x509.GetExpirationDateString (), "GetExpirationDateString");
			Assert.AreEqual ("X509", x509.GetFormat (), "GetFormat");
			Assert.AreEqual (-701544240, x509.GetHashCode (), "GetHashCode");
			Assert.AreEqual ("C=US, O=\"RSA Data Security, Inc.\", OU=Secure Server Certification Authority", x509.GetIssuerName (), "GetIssuerName");
			Assert.AreEqual ("1.2.840.113549.1.1.1", x509.GetKeyAlgorithm (), "GetKeyAlgorithm");
			byte[] keyparams = { 0x05,0x00 };
			Assert.AreEqual (keyparams, x509.GetKeyAlgorithmParameters (), "GetKeyAlgorithmParameters");
			Assert.AreEqual ("0500", x509.GetKeyAlgorithmParametersString (), "GetKeyAlgorithmParametersString");
			Assert.AreEqual ("C=US, S=California, O=CommerceNet, OU=Server Certification Authority", x509.GetName (), "GetName");
			byte[] pubkey = { 0x30,0x5C,0x02,0x55,0x2D,0x58,0xE9,0xBF,0xF0,0x31,0xCD,0x79,0x06,0x50,0x5A,0xD5,0x9E,0x0E,0x2C,0xE6,0xC2,0xF7,0xF9,0xD2,0xCE,0x55,0x64,0x85,0xB1,0x90,0x9A,0x92,0xB3,0x36,0xC1,0xBC,0xEA,0xC8,0x23,0xB7,0xAB,0x3A,0xA7,0x64,0x63,0x77,0x5F,0x84,0x22,0x8E,0xE5,0xB6,0x45,0xDD,0x46,0xAE,0x0A,0xDD,0x00,0xC2,0x1F,0xBA,0xD9,0xAD,0xC0,0x75,0x62,0xF8,0x95,0x82,0xA2,0x80,0xB1,0x82,0x69,0xFA,0xE1,0xAF,0x7F,0xBC,0x7D,0xE2,0x7C,0x76,0xD5,0xBC,0x2A,0x80,0xFB,0x02,0x03,0x01,0x00,0x01 };
			Assert.AreEqual (pubkey, x509.GetPublicKey (), "GetPublicKey");
			Assert.AreEqual ("305C02552D58E9BFF031CD7906505AD59E0E2CE6C2F7F9D2CE556485B1909A92B336C1BCEAC823B7AB3AA76463775F84228EE5B645DD46AE0ADD00C21FBAD9ADC07562F89582A280B18269FAE1AF7FBC7DE27C76D5BC2A80FB0203010001", x509.GetPublicKeyString (), "GetPublicKeyString");
			Assert.AreEqual (cert, x509.GetRawCertData (), "GetRawCertData");
			Assert.IsNotNull (x509.GetRawCertDataString (), "GetRawCertDataString");
			byte[] serial = { 0xE8,0x06,0x00,0x72,0x02 };
			Assert.AreEqual (serial, x509.GetSerialNumber (), "GetSerialNumber");
			Assert.AreEqual ("E806007202", x509.GetSerialNumberString (), "GetSerialNumberString");
			Assert.IsNotNull (x509.ToString (true), "ToString");
		}	

		[Test]
		[PermissionSet (SecurityAction.Deny, Unrestricted = true)]
		[ExpectedException (typeof (SecurityException))]
		public void PartialTrust_DenyUnrestricted_CreateFromCertFile ()
		{
			X509Certificate disk = X509Certificate.CreateFromCertFile (certfile);
		}

		[Test]
		[PermissionSet (SecurityAction.Deny, Unrestricted = true)]
		[ExpectedException (typeof (SecurityException))]
		public void PartialTrust_DenyUnrestricted_CreateFromSignedFile ()
		{
			X509Certificate spc = X509Certificate.CreateFromSignedFile (signedfile);
		}

		[Test]
		[FileIOPermission (SecurityAction.PermitOnly, Unrestricted = true)]
		public void PartialTrust_PermitOnlyFileIOPermission ()
		{
			X509Certificate x509 = new X509Certificate (cert);
			X509Certificate disk = X509Certificate.CreateFromCertFile (certfile);
			Assert.IsTrue (disk.Equals (x509), "Equals 1");
			Assert.IsTrue (x509.Equals (disk), "Equals 2");

			try {
				X509Certificate spc = X509Certificate.CreateFromSignedFile (signedfile);
				Assert.IsFalse (spc.Equals (x509), "!Equals 1");
				Assert.IsFalse (x509.Equals (spc), "!Equals 2");
			}
			catch (COMException) {
				// most likely the root certificate isn't available
				// anyway this indicates that the security check is ok
			}
		}

		// test demands by denying the required permission

		[Test]
		[SecurityPermission (SecurityAction.Deny, UnmanagedCode = true)]
		[ExpectedException (typeof (SecurityException))]
		public void ConstructorIntPtr_DenyUnmanagedCode ()
		{
			// will fail before calling the constructor
			X509Certificate x509 = new X509Certificate (IntPtr.Zero);
		}

		[Test]
		[SecurityPermission (SecurityAction.PermitOnly, UnmanagedCode = true)]
		public void ConstructorIntPtr_PermitOnlyUnmanagedCode ()
		{
			// will fail _when_ calling the constructor
			X509Certificate x509 = new X509Certificate (IntPtr.Zero);
			Assert.AreEqual (0, x509.GetHashCode (), "ConstructorIntPtrZero");
		}
	}
}