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/*
* Copyright (c) 2016 Samsung Electronics Co., Ltd All Rights Reserved
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License
*/
using System;
using System.Runtime.InteropServices;
using static Interop;
namespace Tizen.Security.SecureRepository
{
/// <summary>
/// Class that represents a certificate.
/// </summary>
public class Certificate : SafeHandle
{
/// <summary>
/// Load Certificate from the given file path.
/// </summary>
/// <param name="filePath">The path of certificate file to be loaded.</param>
/// <returns>Loaded certificate class instance.</returns>
/// <exception cref="InvalidOperationException">Invalid certificate file format. Provided file path does not exist or cannot be accessed.</exception>
static public Certificate Load(string filePath)
{
IntPtr ptr = new IntPtr();
int ret = Interop.CkmcTypes.LoadCertFromFile(filePath, out ptr);
Interop.CheckNThrowException(ret, "Failed to load Certificate. file=" + filePath);
return new Certificate(ptr);
}
/// <summary>
/// A constructor of Certificate that takes the binary and its format.
/// </summary>
/// <param name="binary">The binary data of a certificate.</param>
/// <param name="format">The format of the binary data.</param>
public Certificate(byte[] binary, DataFormat format) : base(IntPtr.Zero, true)
{
this.SetHandle(IntPtr.Zero);
Binary = binary;
Format = format;
}
internal Certificate(IntPtr ptrCkmcCert, bool ownsHandle = true) : base(IntPtr.Zero, ownsHandle)
{
base.SetHandle(ptrCkmcCert);
CkmcCert ckmcCert = (CkmcCert)Marshal.PtrToStructure(ptrCkmcCert, typeof(CkmcCert));
Binary = new byte[ckmcCert.size];
Marshal.Copy(ckmcCert.rawCert, Binary, 0, Binary.Length);
Format = (DataFormat)ckmcCert.dataFormat;
}
/// <summary>
/// The binary value of a certificate.
/// </summary>
public byte[] Binary
{
get; set;
}
/// <summary>
/// The format of the binary value.
/// </summary>
public DataFormat Format
{
get; set;
}
internal CkmcCert ToCkmcCert()
{
return new Interop.CkmcCert(new PinnedObject(Binary), Binary.Length, (int)Format);
}
/// <summary>
/// Gets a value that indicates whether the handle is invalid.
/// </summary>
public override bool IsInvalid
{
get { return handle == IntPtr.Zero; }
}
/// <summary>
/// When overridden in a derived class, executes the code required to free the handle.
/// </summary>
/// <returns>true if the handle is released successfully.</returns>
protected override bool ReleaseHandle()
{
if (IsInvalid) // do not release
return true;
Interop.CkmcTypes.CertFree(handle);
this.SetHandle(IntPtr.Zero);
return true;
}
}
}
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