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135 changes: 135 additions & 0 deletions
135
source/AccessTokenValidation/Plumbing/IntrospectionEndpointTokenProvider.cs
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,135 @@ | ||
| /* | ||
| * Copyright 2015 Dominick Baier, Brock Allen | ||
| * | ||
| * 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 IdentityModel.Client; | ||
| using Microsoft.Owin.Logging; | ||
| using Microsoft.Owin.Security; | ||
| using Microsoft.Owin.Security.Infrastructure; | ||
| using Newtonsoft.Json; | ||
| using System; | ||
| using System.Collections.Generic; | ||
| using System.Net; | ||
| using System.Net.Http; | ||
| using System.Security.Claims; | ||
| using System.Threading.Tasks; | ||
|
|
||
| namespace IdentityServer3.AccessTokenValidation | ||
| { | ||
| internal class IntrospectionEndpointTokenProvider : AuthenticationTokenProvider | ||
| { | ||
| private readonly IntrospectionClient _client; | ||
| private readonly IdentityServerBearerTokenAuthenticationOptions _options; | ||
| private readonly ILogger _logger; | ||
|
|
||
| public IntrospectionEndpointTokenProvider(IdentityServerBearerTokenAuthenticationOptions options, ILoggerFactory loggerFactory) | ||
| { | ||
| _logger = loggerFactory.Create(this.GetType().FullName); | ||
|
|
||
| if (string.IsNullOrWhiteSpace(options.Authority)) | ||
| { | ||
| throw new Exception("Authority must be set to use validation endpoint."); | ||
| } | ||
|
|
||
| var baseAddress = options.Authority.EnsureTrailingSlash(); | ||
| baseAddress += "connect/introspect"; | ||
| var introspectionEndpoint = baseAddress; | ||
|
|
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| var handler = options.IntrospectionHttpHandler ?? new WebRequestHandler(); | ||
|
|
||
| if (options.BackchannelCertificateValidator != null) | ||
| { | ||
| // Set the cert validate callback | ||
| var webRequestHandler = handler as WebRequestHandler; | ||
| if (webRequestHandler == null) | ||
| { | ||
| throw new InvalidOperationException("Invalid certificate validator"); | ||
| } | ||
|
|
||
| webRequestHandler.ServerCertificateValidationCallback = options.BackchannelCertificateValidator.Validate; | ||
| } | ||
|
|
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| if (!string.IsNullOrEmpty(options.ClientId)) | ||
| { | ||
| _client = new IntrospectionClient( | ||
| introspectionEndpoint, | ||
| options.ClientId, | ||
| options.ClientSecret ?? "", | ||
| handler); | ||
| } | ||
| else | ||
| { | ||
| _client = new IntrospectionClient( | ||
| introspectionEndpoint, | ||
| innerHttpMessageHandler: handler); | ||
| } | ||
|
|
||
| _options = options; | ||
| } | ||
|
|
||
| public override async Task ReceiveAsync(AuthenticationTokenReceiveContext context) | ||
| { | ||
| if (_options.EnableValidationResultCache) | ||
| { | ||
| var cachedClaims = await _options.ValidationResultCache.GetAsync(context.Token); | ||
| if (cachedClaims != null) | ||
| { | ||
| SetAuthenticationTicket(context, cachedClaims); | ||
| return; | ||
| } | ||
| } | ||
|
|
||
| IntrospectionResponse response; | ||
| try | ||
| { | ||
| response = await _client.SendAsync(new IntrospectionRequest { Token = context.Token }); | ||
| if (response.IsError) | ||
| { | ||
| _logger.WriteError("Error returned from introspection endpoint: " + response.Error); | ||
| return; | ||
| } | ||
| } | ||
| catch (Exception ex) | ||
| { | ||
| _logger.WriteError("Exception while contacting introspection endpoint: " + ex.ToString()); | ||
| return; | ||
| } | ||
|
|
||
| var claims = new List<Claim>(); | ||
| foreach (var claim in response.Claims) | ||
| { | ||
| claims.Add(new Claim(claim.Item1, claim.Item2)); | ||
| } | ||
|
|
||
| if (_options.EnableValidationResultCache) | ||
| { | ||
| await _options.ValidationResultCache.AddAsync(context.Token, claims); | ||
| } | ||
|
|
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| SetAuthenticationTicket(context, claims); | ||
| } | ||
|
|
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| private void SetAuthenticationTicket(AuthenticationTokenReceiveContext context, IEnumerable<Claim> claims) | ||
| { | ||
| var id = new ClaimsIdentity( | ||
| claims, | ||
| _options.AuthenticationType, | ||
| _options.NameClaimType, | ||
| _options.RoleClaimType); | ||
|
|
||
| context.SetTicket(new AuthenticationTicket(id, new AuthenticationProperties())); | ||
| } | ||
| } | ||
| } |
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