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refactor: implem factory and generic callback for tls mongo
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,126 @@ | ||
| // This file is part of the ArmoniK project | ||
| // | ||
| // Copyright (C) ANEO, 2021-2024. All rights reserved. | ||
| // | ||
| // This program is free software: you can redistribute it and/or modify | ||
| // it under the terms of the GNU Affero General Public License as published | ||
| // by the Free Software Foundation, either version 3 of the License, or | ||
| // (at your option) any later version. | ||
| // | ||
| // This program is distributed in the hope that it will be useful, | ||
| // but WITHOUT ANY WARRANTY, without even the implied warranty of | ||
| // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| // GNU Affero General Public License for more details. | ||
| // | ||
| // You should have received a copy of the GNU Affero General Public License | ||
| // along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
|
|
||
| using System.IO; | ||
| using System.Linq; | ||
| using System.Net.Security; | ||
| using System.Security.Cryptography.X509Certificates; | ||
|
|
||
| using Microsoft.Extensions.Logging; | ||
|
|
||
|
|
||
| namespace ArmoniK.Core.Utils; | ||
|
|
||
| public static class CertificateValidator | ||
| { | ||
| public static class CertificateValidatorFactory | ||
| { | ||
| public static (RemoteCertificateValidationCallback, X509Certificate2) CreateCallback(string caFilePath, | ||
| ILogger logger) | ||
| { | ||
| var content = File.ReadAllText(caFilePath); | ||
| var authority = X509Certificate2.CreateFromPem(content); | ||
| logger.LogInformation("Loaded CA certificate from file {path}", | ||
| caFilePath); | ||
| var callback = ValidationCallback(logger, | ||
| authority); | ||
| return (callback, authority); | ||
| } | ||
| } | ||
|
|
||
| public static RemoteCertificateValidationCallback ValidationCallback(ILogger logger, | ||
| X509Certificate2 authority) | ||
| { | ||
| return (sender, | ||
| certificate, | ||
| chain, | ||
| sslPolicyErrors) => | ||
| { | ||
| if (certificate == null || chain == null) | ||
| { | ||
| logger.LogWarning("Certificate or certificate chain is null"); | ||
| return false; | ||
| } | ||
|
|
||
| return ValidateServerCertificate(sender, | ||
| certificate, | ||
| chain, | ||
| sslPolicyErrors, | ||
| authority, | ||
| logger); | ||
| }; | ||
| } | ||
|
|
||
| public static bool ValidateServerCertificate(object sender, | ||
| X509Certificate certificate, | ||
| X509Chain certChain, | ||
| SslPolicyErrors sslPolicyErrors, | ||
| X509Certificate2 authority, | ||
| ILogger logger) | ||
| { | ||
| // If there is any error other than untrusted root or partial chain, fail the validation | ||
| if ((sslPolicyErrors & ~SslPolicyErrors.RemoteCertificateChainErrors) != 0) | ||
| { | ||
| logger.LogDebug("SSL validation failed with errors: {sslPolicyErrors}", | ||
| sslPolicyErrors); | ||
| return false; | ||
| } | ||
|
|
||
| if (certificate == null) | ||
| { | ||
| logger.LogDebug("Certificate is null!"); | ||
| return false; | ||
| } | ||
|
|
||
| if (certChain == null) | ||
| { | ||
| logger.LogDebug("Certificate chain is null!"); | ||
| return false; | ||
| } | ||
|
|
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| // If there is any error other than untrusted root or partial chain, fail the validation | ||
| if (certChain.ChainStatus.Any(status => status.Status is not X509ChainStatusFlags.UntrustedRoot and not X509ChainStatusFlags.PartialChain)) | ||
| { | ||
| logger.LogDebug("SSL validation failed with chain status: {chainStatus}", | ||
| certChain.ChainStatus); | ||
| return false; | ||
| } | ||
|
|
||
| var cert = new X509Certificate2(certificate); | ||
| certChain.ChainPolicy.RevocationMode = X509RevocationMode.NoCheck; | ||
| certChain.ChainPolicy.VerificationFlags = X509VerificationFlags.AllowUnknownCertificateAuthority; | ||
|
|
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| certChain.ChainPolicy.ExtraStore.Add(authority); | ||
| if (!certChain.Build(cert)) | ||
| { | ||
| return false; | ||
| } | ||
|
|
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| var isTrusted = certChain.ChainElements.Any(x => x.Certificate.Thumbprint == authority.Thumbprint); | ||
| if (isTrusted) | ||
| { | ||
| logger.LogInformation("SSL validation succeeded"); | ||
| } | ||
| else | ||
| { | ||
| logger.LogInformation("SSL validation failed with errors: {sslPolicyErrors}", | ||
| sslPolicyErrors); | ||
| } | ||
|
|
||
| return isTrusted; | ||
| } | ||
| } |