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(feature): Add ActiveTokenEndpoint to WsFederationConfiguration (#2100)
Added WsFederationConfigurationValidator, updates to WsFederationMetadataSerializer/WsFederationConfiguration Added support to the WsFederationMetadataSerializer to read the SecurityTokenSerivceEndpoint element from WS-Federation metadata and exposed it via the WsFederationConfiguration object as ActiveTokenEndpoint. Added WsFederationConfigurationValidator and related test cases.
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....IdentityModel.Protocols.WsFederation/Configuration/WsFederationConfigurationValidator.cs
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,205 @@ | ||
| // Copyright (c) Microsoft Corporation. All rights reserved. | ||
| // Licensed under the MIT License. | ||
|
|
||
| using System; | ||
| using System.Security.Cryptography; | ||
| using System.Security.Cryptography.X509Certificates; | ||
| using Microsoft.IdentityModel.Tokens; | ||
| using Microsoft.IdentityModel.Xml; | ||
| using static Microsoft.IdentityModel.Logging.LogHelper; | ||
|
|
||
| namespace Microsoft.IdentityModel.Protocols.WsFederation | ||
| { | ||
| /// <summary> | ||
| /// Defines a class for validating the WsFederationConfiguration. | ||
| /// </summary> | ||
| public class WsFederationConfigurationValidator : IConfigurationValidator<WsFederationConfiguration> | ||
| { | ||
| /// <summary> | ||
| /// Validates a WsFederationConfiguration. | ||
| /// </summary> | ||
| /// <param name="configuration">WsFederationConfiguration to validate</param> | ||
| /// <returns>A <see cref="ConfigurationValidationResult"/> containing the validation result.</returns> | ||
| /// <exception cref="ArgumentNullException">If the provided configuration is null</exception> | ||
| public ConfigurationValidationResult Validate(WsFederationConfiguration configuration) | ||
| { | ||
| if (configuration == null) | ||
| throw LogArgumentNullException(nameof(configuration)); | ||
|
|
||
| if (string.IsNullOrWhiteSpace(configuration.Issuer)) | ||
| { | ||
| return new ConfigurationValidationResult | ||
| { | ||
| ErrorMessage = LogMessages.IDX22700, | ||
| Succeeded = false | ||
| }; | ||
| } | ||
|
|
||
| if (configuration.Signature == null) | ||
| { | ||
| return new ConfigurationValidationResult | ||
| { | ||
| ErrorMessage = LogMessages.IDX22701, | ||
| Succeeded = false | ||
| }; | ||
| } | ||
|
|
||
| if (configuration.Signature.KeyInfo == null) | ||
| { | ||
| return new ConfigurationValidationResult | ||
| { | ||
| ErrorMessage = LogMessages.IDX22702, | ||
| Succeeded = false | ||
| }; | ||
| } | ||
|
|
||
| if (string.IsNullOrWhiteSpace(configuration.Signature.SignatureValue)) | ||
| { | ||
| return new ConfigurationValidationResult | ||
| { | ||
| ErrorMessage = LogMessages.IDX22703, | ||
| Succeeded = false | ||
| }; | ||
| } | ||
|
|
||
| if (configuration.Signature.SignedInfo == null) | ||
| { | ||
| return new ConfigurationValidationResult | ||
| { | ||
| ErrorMessage = LogMessages.IDX22704, | ||
| Succeeded = false | ||
| }; | ||
| } | ||
|
|
||
| if (string.IsNullOrWhiteSpace(configuration.Signature.SignedInfo.SignatureMethod)) | ||
| { | ||
| return new ConfigurationValidationResult | ||
| { | ||
| ErrorMessage = LogMessages.IDX22705, | ||
| Succeeded = false | ||
| }; | ||
| } | ||
|
|
||
| if (configuration.Signature.SignedInfo.References == null || configuration.Signature.SignedInfo.References.Count == 0) | ||
| { | ||
| return new ConfigurationValidationResult | ||
| { | ||
| ErrorMessage = LogMessages.IDX22706, | ||
| Succeeded = false | ||
| }; | ||
| } | ||
|
|
||
| if (string.IsNullOrWhiteSpace(configuration.ActiveTokenEndpoint)) | ||
| { | ||
| return new ConfigurationValidationResult | ||
| { | ||
| ErrorMessage = LogMessages.IDX22707, | ||
| Succeeded = false | ||
| }; | ||
| } | ||
|
|
||
| if (!Uri.IsWellFormedUriString(configuration.ActiveTokenEndpoint, UriKind.Absolute)) | ||
| { | ||
| return new ConfigurationValidationResult | ||
| { | ||
| ErrorMessage = LogMessages.IDX22708, | ||
| Succeeded = false | ||
| }; | ||
| } | ||
|
|
||
| if (string.IsNullOrWhiteSpace(configuration.TokenEndpoint)) | ||
| { | ||
| return new ConfigurationValidationResult | ||
| { | ||
| ErrorMessage = LogMessages.IDX22709, | ||
| Succeeded = false | ||
| }; | ||
| } | ||
|
|
||
| if (!Uri.IsWellFormedUriString(configuration.TokenEndpoint, UriKind.Absolute)) | ||
| { | ||
| return new ConfigurationValidationResult | ||
| { | ||
| ErrorMessage = LogMessages.IDX22710, | ||
| Succeeded = false | ||
| }; | ||
| } | ||
|
|
||
| if (configuration.SigningKeys == null || configuration.SigningKeys.Count == 0) | ||
| { | ||
| return new ConfigurationValidationResult | ||
| { | ||
| ErrorMessage = LogMessages.IDX22711, | ||
| Succeeded = false | ||
| }; | ||
| } | ||
|
|
||
| // Get the thumbprint of the cert used to sign the metadata | ||
| string signingKeyId = string.Empty; | ||
| var signatureX509Data = configuration.Signature.KeyInfo.X509Data.GetEnumerator(); | ||
|
|
||
| if (signatureX509Data.MoveNext()) | ||
| { | ||
| var signatureCertData = signatureX509Data.Current.Certificates.GetEnumerator(); | ||
| if (signatureCertData.MoveNext() && !string.IsNullOrWhiteSpace(signatureCertData.Current)) | ||
| { | ||
| X509Certificate2 cert = null; | ||
|
|
||
| try | ||
| { | ||
| cert = new X509Certificate2(Convert.FromBase64String(signatureCertData.Current)); | ||
| signingKeyId = cert.Thumbprint; | ||
| } | ||
| catch (CryptographicException) | ||
| { | ||
| return new ConfigurationValidationResult | ||
| { | ||
| ErrorMessage = LogMessages.IDX22712, | ||
| Succeeded = false | ||
| }; | ||
| } | ||
| finally | ||
| { | ||
| if (cert != null) | ||
| { | ||
| ((IDisposable)cert).Dispose(); | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
|
||
| // We know the key used to sign the doc is part of the token signing keys as per the spec. | ||
| // http://docs.oasis-open.org/wsfed/federation/v1.2/os/ws-federation-1.2-spec-os.html#_Toc223174958:~:text=%3C/fed%3ATargetScopes%20%3E-,3.1.15%20%5BSignature%5D%20Property,-The%20OPTIONAL%20%5BSignature | ||
| // If the metadata is for a token issuer then the key used to sign issued tokens SHOULD | ||
| // be used to sign this document. This means that if a <fed:TokenSigningKey> is specified, | ||
| // it SHOULD be used to sign this document. | ||
|
|
||
| foreach (SecurityKey key in configuration.SigningKeys) | ||
| { | ||
| if (key == null || key.CryptoProviderFactory == null || signingKeyId != key.KeyId) | ||
| continue; | ||
|
|
||
| try | ||
| { | ||
| configuration.Signature.Verify(key, key.CryptoProviderFactory); | ||
|
|
||
| return new ConfigurationValidationResult | ||
| { | ||
| Succeeded = true | ||
| }; | ||
| } | ||
| catch (XmlValidationException) | ||
| { | ||
| // We know the signature is invalid at this point | ||
| break; | ||
| } | ||
| } | ||
|
|
||
| return new ConfigurationValidationResult | ||
| { | ||
| ErrorMessage = LogMessages.IDX22713, | ||
| Succeeded = false | ||
| }; | ||
| } | ||
| } | ||
| } |
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