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Imported Upstream version 5.18.0.142
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190
mcs/class/System/Mono.AppleTls/MonoCertificatePal.cs
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190
mcs/class/System/Mono.AppleTls/MonoCertificatePal.cs
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//
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// MonoCertificatePal.cs
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//
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// Authors:
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// Miguel de Icaza
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// Sebastien Pouliot <sebastien@xamarin.com>
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// Martin Baulig <mabaul@microsoft.com>
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//
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// Copyright 2010 Novell, Inc
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// Copyright 2011-2014 Xamarin Inc.
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// Copyright (c) 2018 Xamarin Inc. (http://www.xamarin.com)
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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using System;
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using System.Threading;
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using System.Runtime.InteropServices;
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using System.Security.Cryptography.Apple;
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using System.Security.Cryptography.X509Certificates;
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using Microsoft.Win32.SafeHandles;
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using Mono.Net;
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namespace Mono.AppleTls
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{
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static partial class MonoCertificatePal
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{
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[DllImport (AppleTlsContext.SecurityLibrary)]
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extern static IntPtr SecCertificateCreateWithData (IntPtr allocator, IntPtr cfData);
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public static SafeSecCertificateHandle FromOtherCertificate (X509Certificate certificate)
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{
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if (certificate == null)
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throw new ArgumentNullException (nameof (certificate));
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return FromOtherCertificate (certificate.Impl);
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}
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public static SafeSecCertificateHandle FromOtherCertificate (X509CertificateImpl impl)
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{
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X509Helper.ThrowIfContextInvalid (impl);
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var handle = impl.GetNativeAppleCertificate ();
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if (handle != IntPtr.Zero)
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return new SafeSecCertificateHandle (handle, false);
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using (var data = CFData.FromData (impl.RawData)) {
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handle = SecCertificateCreateWithData (IntPtr.Zero, data.Handle);
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if (handle == IntPtr.Zero)
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throw new ArgumentException ("Not a valid DER-encoded X.509 certificate");
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return new SafeSecCertificateHandle (handle, true);
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}
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}
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[DllImport (AppleTlsContext.SecurityLibrary)]
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extern static IntPtr SecIdentityGetTypeID ();
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public static bool IsSecIdentity (IntPtr ptr)
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{
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if (ptr == IntPtr.Zero)
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return false;
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return CFType.GetTypeID (ptr) == SecIdentityGetTypeID ();
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}
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[DllImport (AppleTlsContext.SecurityLibrary)]
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public extern static IntPtr SecKeyGetTypeID ();
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public static bool IsSecKey (IntPtr ptr)
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{
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if (ptr == IntPtr.Zero)
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return false;
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return CFType.GetTypeID (ptr) == SecKeyGetTypeID ();
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}
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[DllImport (AppleTlsContext.SecurityLibrary)]
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extern static /* OSStatus */ SecStatusCode SecIdentityCopyCertificate (/* SecIdentityRef */ IntPtr identityRef, /* SecCertificateRef* */ out IntPtr certificateRef);
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public static SafeSecCertificateHandle GetCertificate (SafeSecIdentityHandle identity)
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{
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if (identity == null || identity.IsInvalid)
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throw new ArgumentNullException (nameof (identity));
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var result = SecIdentityCopyCertificate (identity.DangerousGetHandle (), out var cert);
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if (result != SecStatusCode.Success)
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throw new InvalidOperationException (result.ToString ());
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return new SafeSecCertificateHandle (cert, true);
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}
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[DllImport (AppleTlsContext.SecurityLibrary)]
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extern static IntPtr SecCertificateCopySubjectSummary (IntPtr cert);
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public static string GetSubjectSummary (SafeSecCertificateHandle certificate)
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{
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if (certificate == null || certificate.IsInvalid)
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throw new ArgumentNullException (nameof (certificate));
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var subjectSummaryHandle = IntPtr.Zero;
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try {
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subjectSummaryHandle = SecCertificateCopySubjectSummary (certificate.DangerousGetHandle ());
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return CFString.AsString (subjectSummaryHandle);
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} finally {
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if (subjectSummaryHandle != IntPtr.Zero)
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CFObject.CFRelease (subjectSummaryHandle);
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}
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}
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[DllImport (AppleTlsContext.SecurityLibrary)]
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extern static /* CFDataRef */ IntPtr SecCertificateCopyData (/* SecCertificateRef */ IntPtr cert);
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public static byte[] GetRawData (SafeSecCertificateHandle certificate)
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{
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if (certificate == null || certificate.IsInvalid)
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throw new ArgumentNullException (nameof (certificate));
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var dataPtr = SecCertificateCopyData (certificate.DangerousGetHandle ());
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if (dataPtr == IntPtr.Zero)
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throw new ArgumentException ("Not a valid certificate");
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using (var data = new CFData (dataPtr, true)) {
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var buffer = new byte[(int)data.Length];
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Marshal.Copy (data.Bytes, buffer, 0, buffer.Length);
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return buffer;
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}
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}
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public static bool Equals (SafeSecCertificateHandle first, SafeSecCertificateHandle second)
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{
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/*
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* This is a little bit expensive, but unfortunately there is no better API to compare two
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* SecCertificateRef's for equality.
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*/
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if (first == null || first.IsInvalid)
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throw new ArgumentNullException (nameof (first));
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if (second == null || second.IsInvalid)
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throw new ArgumentNullException (nameof (second));
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if (first.DangerousGetHandle () == second.DangerousGetHandle ())
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return true;
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var firstDataPtr = SecCertificateCopyData (first.DangerousGetHandle ());
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var secondDataPtr = SecCertificateCopyData (first.DangerousGetHandle ());
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try {
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if (firstDataPtr == IntPtr.Zero || secondDataPtr == IntPtr.Zero)
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throw new ArgumentException ("Not a valid certificate.");
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if (firstDataPtr == secondDataPtr)
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return true;
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var firstLength = (int)CFData.CFDataGetLength (firstDataPtr);
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var secondLength = (int)CFData.CFDataGetLength (secondDataPtr);
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if (firstLength != secondLength)
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return false;
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var firstBytePtr = CFData.CFDataGetBytePtr (firstDataPtr);
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var secondBytePtr = CFData.CFDataGetBytePtr (secondDataPtr);
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if (firstBytePtr == secondBytePtr)
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return true;
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var firstBuffer = new byte[firstLength];
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var secondBuffer = new byte[secondLength];
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Marshal.Copy (firstBytePtr, firstBuffer, 0, firstBuffer.Length);
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Marshal.Copy (secondBytePtr, secondBuffer, 0, secondBuffer.Length);
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for (int i = 0; i < firstBuffer.Length; i++)
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if (firstBuffer[i] != secondBuffer[i])
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return false;
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return true;
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} finally {
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if (firstDataPtr != IntPtr.Zero)
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CFObject.CFRelease (firstDataPtr);
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if (secondDataPtr != IntPtr.Zero)
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CFObject.CFRelease (secondDataPtr);
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}
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}
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}
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}
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