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#region Copyright notice and license
// Copyright 2015, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#endregion
using System;
using Grpc.Core.Internal;
namespace Grpc.Core
{
/// <summary>
/// Client-side credentials. Used for creation of a secure channel.
/// </summary>
public abstract class Credentials
{
static readonly Credentials InsecureInstance = new InsecureCredentialsImpl();
/// <summary>
/// Returns instance of credential that provides no security and
/// will result in creating an unsecure channel with no encryption whatsoever.
/// </summary>
public static Credentials Insecure
{
get
{
return InsecureInstance;
}
}
/// <summary>
/// Creates native object for the credentials. May return null if insecure channel
/// should be created.
/// </summary>
/// <returns>The native credentials.</returns>
internal abstract CredentialsSafeHandle ToNativeCredentials();
private sealed class InsecureCredentialsImpl : Credentials
{
internal override CredentialsSafeHandle ToNativeCredentials()
{
return null;
}
}
}
/// <summary>
/// Client-side SSL credentials.
/// </summary>
public sealed class SslCredentials : Credentials
{
readonly string rootCertificates;
readonly KeyCertificatePair keyCertificatePair;
/// <summary>
/// Creates client-side SSL credentials loaded from
/// disk file pointed to by the GRPC_DEFAULT_SSL_ROOTS_FILE_PATH environment variable.
/// If that fails, gets the roots certificates from a well known place on disk.
/// </summary>
public SslCredentials() : this(null, null)
{
}
/// <summary>
/// Creates client-side SSL credentials from
/// a string containing PEM encoded root certificates.
/// </summary>
public SslCredentials(string rootCertificates) : this(rootCertificates, null)
{
}
/// <summary>
/// Creates client-side SSL credentials.
/// </summary>
/// <param name="rootCertificates">string containing PEM encoded server root certificates.</param>
/// <param name="keyCertificatePair">a key certificate pair.</param>
public SslCredentials(string rootCertificates, KeyCertificatePair keyCertificatePair)
{
this.rootCertificates = rootCertificates;
this.keyCertificatePair = keyCertificatePair;
}
/// <summary>
/// PEM encoding of the server root certificates.
/// </summary>
public string RootCertificates
{
get
{
return this.rootCertificates;
}
}
/// <summary>
/// Client side key and certificate pair.
/// If null, client will not use key and certificate pair.
/// </summary>
public KeyCertificatePair KeyCertificatePair
{
get
{
return this.keyCertificatePair;
}
}
internal override CredentialsSafeHandle ToNativeCredentials()
{
return CredentialsSafeHandle.CreateSslCredentials(rootCertificates, keyCertificatePair);
}
}
}
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