Rename result generators

src/IdentityServer/Configuration/DependencyInjection/BuilderExtensions/Core.cs

@@ -125,37 +125,36 @@ public static IIdentityServerBuilder AddDefaultEndpoints(this IIdentityServerBui
         builder.AddEndpoint<TokenEndpoint>(EndpointNames.Token, ProtocolRoutePaths.Token.EnsureLeadingSlash());
         builder.AddEndpoint<UserInfoEndpoint>(EndpointNames.UserInfo, ProtocolRoutePaths.UserInfo.EnsureLeadingSlash());
 
-        builder.AddEndpointResultGenerator<AuthorizeInteractionPageResult, AuthorizeInteractionPageResultGenerator>();
-        builder.AddEndpointResultGenerator<AuthorizeResult, AuthorizeResultGenerator>();
-        builder.AddEndpointResultGenerator<BackchannelAuthenticationResult, BackchannelAuthenticationResultGenerator>();
-        builder.AddEndpointResultGenerator<BadRequestResult, BadRequestResultGenerator>();
-        builder.AddEndpointResultGenerator<CheckSessionResult, CheckSessionResultGenerator>();
-        builder.AddEndpointResultGenerator<DeviceAuthorizationResult, DeviceAuthorizationResultGenerator>();
-        builder.AddEndpointResultGenerator<DiscoveryDocumentResult, DiscoveryDocumentResultGenerator>();
-        builder.AddEndpointResultGenerator<EndSessionCallbackResult, EndSessionCallbackResultGenerator>();
-        builder.AddEndpointResultGenerator<EndSessionResult, EndSessionResultGenerator>();
-        builder.AddEndpointResultGenerator<IntrospectionResult, IntrospectionResultGenerator>();
-        builder.AddEndpointResultGenerator<JsonWebKeysResult, JsonWebKeysResultGenerator>();
-        builder.AddEndpointResultGenerator<ProtectedResourceErrorResult, ProtectedResourceErrorResultGenerator>();
-        builder.AddEndpointResultGenerator<PushedAuthorizationResult, PushedAuthorizationResultGenerator>();
-        builder.AddEndpointResultGenerator<PushedAuthorizationErrorResult, PushedAuthorizationErrorResultGenerator>();
-        builder.AddEndpointResultGenerator<StatusCodeResult, StatusCodeResultGenerator>();
-        builder.AddEndpointResultGenerator<TokenErrorResult, TokenErrorResultGenerator>();
-        builder.AddEndpointResultGenerator<TokenResult, TokenResultGenerator>();
-        builder.AddEndpointResultGenerator<TokenRevocationErrorResult, TokenRevocationErrorResultGenerator>();
-        builder.AddEndpointResultGenerator<UserInfoResult, UserInfoResultGenerator>();
+        builder.AddHttpWriter<AuthorizeInteractionPageResult, AuthorizeInteractionPageHttpWriter>();
+        builder.AddHttpWriter<AuthorizeResult, AuthorizeHttpWriter>();
+        builder.AddHttpWriter<BackchannelAuthenticationResult, BackchannelAuthenticationHttpWriter>();
+        builder.AddHttpWriter<BadRequestResult, BadRequestHttpWriter>();
+        builder.AddHttpWriter<CheckSessionResult, CheckSessionHttpWriter>();
+        builder.AddHttpWriter<DeviceAuthorizationResult, DeviceAuthorizationHttpWriter>();
+        builder.AddHttpWriter<DiscoveryDocumentResult, DiscoveryDocumentHttpWriter>();
+        builder.AddHttpWriter<EndSessionCallbackResult, EndSessionCallbackHttpWriter>();
+        builder.AddHttpWriter<EndSessionResult, EndSessionHttpWriter>();
+        builder.AddHttpWriter<IntrospectionResult, IntrospectionHttpWriter>();
+        builder.AddHttpWriter<JsonWebKeysResult, JsonWebKeysHttpWriter>();
+        builder.AddHttpWriter<ProtectedResourceErrorResult, ProtectedResourceErrorHttpWriter>();
+        builder.AddHttpWriter<PushedAuthorizationResult, PushedAuthorizationHttpWriter>();
+        builder.AddHttpWriter<PushedAuthorizationErrorResult, PushedAuthorizationErrorHttpWriter>();
+        builder.AddHttpWriter<StatusCodeResult, StatusCodeHttpWriter>();
+        builder.AddHttpWriter<TokenErrorResult, TokenErrorHttpWriter>();
+        builder.AddHttpWriter<TokenResult, TokenHttpWriter>();
+        builder.AddHttpWriter<TokenRevocationErrorResult, TokenRevocationErrorHttpWriter>();
+        builder.AddHttpWriter<UserInfoResult, UserInfoHttpWriter>();
 
         return builder;
     }
 
     /// <summary>
-    /// Adds the endpoint.
+    /// Adds an endpoint.
     /// </summary>
     /// <typeparam name="TEndpoint"></typeparam>
     /// <param name="builder">The builder.</param>
     /// <param name="name">The name.</param>
     /// <param name="path">The path.</param>
-    /// <returns></returns>
     public static IIdentityServerBuilder AddEndpoint<TEndpoint>(this IIdentityServerBuilder builder, string name, PathString path)
         where TEndpoint : class, IEndpointHandler
     {
@@ -166,21 +165,20 @@ public static IIdentityServerBuilder AddEndpoint<TEndpoint>(this IIdentityServer
     }
 
     /// <summary>
-    /// Adds the endpoint.
+    /// Adds an <see cref="IHttpResponseWriter{T}"/> for an <see cref="IEndpointResult"/>.
     /// </summary>
-    public static IIdentityServerBuilder AddEndpointResultGenerator<TResult, TResultGenerator>(this IIdentityServerBuilder builder)
+    public static IIdentityServerBuilder AddHttpWriter<TResult, TWriter>(this IIdentityServerBuilder builder)
         where TResult : class, IEndpointResult
-        where TResultGenerator : class, Duende.IdentityServer.Hosting.IEndpointResultGenerator<TResult>
+        where TWriter : class, IHttpResponseWriter<TResult>
     {
-        builder.Services.AddTransient<Duende.IdentityServer.Hosting.IEndpointResultGenerator<TResult>, TResultGenerator>();
+        builder.Services.AddTransient<IHttpResponseWriter<TResult>, TWriter>();
         return builder;
     }
 
     /// <summary>
     /// Adds the core services.
     /// </summary>
     /// <param name="builder">The builder.</param>
-    /// <returns></returns>
     public static IIdentityServerBuilder AddCoreServices(this IIdentityServerBuilder builder)
     {
         builder.Services.AddTransient<IServerUrls, DefaultServerUrls>();

src/IdentityServer/Endpoints/Results/AuthorizeInteractionPageResult.cs

@@ -53,15 +53,15 @@ public AuthorizeInteractionPageResult(ValidatedAuthorizeRequest request, string
     public string ReturnUrlParameterName { get; }
 }
 
-class AuthorizeInteractionPageResultGenerator : IEndpointResultGenerator<AuthorizeInteractionPageResult>
+class AuthorizeInteractionPageHttpWriter : IHttpResponseWriter<AuthorizeInteractionPageResult>
 {
     private readonly IServerUrls _urls;
     private readonly IAuthorizationParametersMessageStore _authorizationParametersMessageStore;
 
     /// <summary>
     /// Initializes a new instance of the <see cref="AuthorizeInteractionPageResult"/> class.
     /// </summary>
-    public AuthorizeInteractionPageResultGenerator(
+    public AuthorizeInteractionPageHttpWriter(
         IServerUrls urls,
         IAuthorizationParametersMessageStore authorizationParametersMessageStore = null)
     {
@@ -70,7 +70,7 @@ public AuthorizeInteractionPageResultGenerator(
     }
 
     /// <inheritdoc/>
-    public async Task ExecuteAsync(AuthorizeInteractionPageResult result, HttpContext context)
+    public async Task WriteHttpResponse(AuthorizeInteractionPageResult result, HttpContext context)
     {
         var returnUrl = _urls.BasePath.EnsureTrailingSlash() + ProtocolRoutePaths.AuthorizeCallback;
 

src/IdentityServer/Endpoints/Results/AuthorizeResult.cs

@@ -38,9 +38,15 @@ public AuthorizeResult(AuthorizeResponse response)
     }
 }
 
-internal class AuthorizeResultGenerator : IEndpointResultGenerator<AuthorizeResult>
+/// <summary>
+/// Writes http responses for <see cref="AuthorizeResult"/>s.
+/// </summary>
+public class AuthorizeHttpWriter : IHttpResponseWriter<AuthorizeResult>
 {
-    public AuthorizeResultGenerator(
+    /// <summary>
+    /// Initializes a new instance of the <see cref="AuthorizeHttpWriter"/> class.
+    /// </summary>
+    public AuthorizeHttpWriter(
         IdentityServerOptions options,
         IUserSession userSession,
         IPushedAuthorizationService pushedAuthorizationService,
@@ -63,7 +69,8 @@ public AuthorizeResultGenerator(
     private readonly IServerUrls _urls;
     private readonly IClock _clock;
 
-    public async Task ExecuteAsync(AuthorizeResult result, HttpContext context)
+    /// <inheritdoc />
+    public async Task WriteHttpResponse(AuthorizeResult result, HttpContext context)
     {
         await ConsumePushedAuthorizationRequest(result);
 
@@ -86,7 +93,6 @@ private async Task ConsumePushedAuthorizationRequest(AuthorizeResult result)
         }
     }
 
-
     private async Task ProcessErrorAsync(AuthorizeResponse response, HttpContext context)
     {
         // these are the conditions where we can send a response 
@@ -111,7 +117,7 @@ private async Task ProcessErrorAsync(AuthorizeResponse response, HttpContext con
         }
     }
 
-    protected async Task ProcessResponseAsync(AuthorizeResponse response, HttpContext context)
+    private async Task ProcessResponseAsync(AuthorizeResponse response, HttpContext context)
     {
         if (!response.IsError)
         {
@@ -178,11 +184,31 @@ private string BuildRedirectUri(AuthorizeResponse response)
         return uri;
     }
 
-    private const string FormPostHtml = "<html><head><meta http-equiv='X-UA-Compatible' content='IE=edge' /><base target='_self'/></head><body><form method='post' action='{uri}'>{body}<noscript><button>Click to continue</button></noscript></form><script>window.addEventListener('load', function(){document.forms[0].submit();});</script></body></html>";
+    private const string DefaultFormPostHeadTags = "<head><meta http-equiv='X-UA-Compatible' content='IE=edge' /><base target='_self'/></head>";
+    private const string DefaultFormPostBodyTags = "<body><form method='post' action='{uri}'>{body}<noscript><button>Click to continue</button></noscript></form><script>window.addEventListener('load', function(){document.forms[0].submit();});</script></body>";
 
-    private string GetFormPostHtml(AuthorizeResponse response)
+    /// <summary>
+    /// Gets the header tags that will be included in the response when
+    /// response_mode is form_post.
+    /// </summary>
+    protected virtual string FormPostHeader => DefaultFormPostHeadTags;
+
+    /// <summary>
+    /// Gets the body tags that will be included in the response when
+    /// response_mode is form_post. The string "{body}" (including the curly
+    /// braces) within this string will be replaced with the response
+    /// parameters, serialized as form data.
+    /// </summary>
+    protected virtual string FormPostBody => DefaultFormPostBodyTags;
+
+    /// <summary>
+    /// Gets the html that will set as the response when response_mode is
+    /// form_post. 
+    /// </summary>
+    /// <param name="response"></param>
+    protected virtual string GetFormPostHtml(AuthorizeResponse response)
     {
-        var html = FormPostHtml;
+        var html = $"<html>{FormPostHeader}{FormPostBody}</html>";
 
         var url = response.Request.RedirectUri;
         url = HtmlEncoder.Default.Encode(url);

src/IdentityServer/Endpoints/Results/BackchannelAuthenticationResult.cs

@@ -33,9 +33,9 @@ public BackchannelAuthenticationResult(BackchannelAuthenticationResponse respons
     }
 }
 
-internal class BackchannelAuthenticationResultGenerator : IEndpointResultGenerator<BackchannelAuthenticationResult>
+internal class BackchannelAuthenticationHttpWriter : IHttpResponseWriter<BackchannelAuthenticationResult>
 {
-    public async Task ExecuteAsync(BackchannelAuthenticationResult result, HttpContext context)
+    public async Task WriteHttpResponse(BackchannelAuthenticationResult result, HttpContext context)
     {
         context.Response.SetNoCache();
 

src/IdentityServer/Endpoints/Results/BadRequestResult.cs

@@ -35,9 +35,9 @@ public BadRequestResult(string error = null, string errorDescription = null)
     }
 }
 
-internal class BadRequestResultGenerator : IEndpointResultGenerator<BadRequestResult>
+internal class BadRequestHttpWriter : IHttpResponseWriter<BadRequestResult>
 {
-    public async Task ExecuteAsync(BadRequestResult result, HttpContext context)
+    public async Task WriteHttpResponse(BadRequestResult result, HttpContext context)
     {
         context.Response.StatusCode = 400;
         context.Response.SetNoCache();

src/IdentityServer/Endpoints/Results/CheckSessionResult.cs

@@ -18,9 +18,9 @@ public class CheckSessionResult : EndpointResult<CheckSessionResult>
 }
 
 
-internal class CheckSessionResultGenerator : IEndpointResultGenerator<CheckSessionResult>
+internal class CheckSessionHttpWriter : IHttpResponseWriter<CheckSessionResult>
 {
-    public CheckSessionResultGenerator(IdentityServerOptions options)
+    public CheckSessionHttpWriter(IdentityServerOptions options)
     {
         _options = options;
     }
@@ -30,7 +30,7 @@ public CheckSessionResultGenerator(IdentityServerOptions options)
     private static readonly object Lock = new object();
     private static volatile string LastCheckSessionCookieName;
 
-    public async Task ExecuteAsync(CheckSessionResult result, HttpContext context)
+    public async Task WriteHttpResponse(CheckSessionResult result, HttpContext context)
     {
         AddCspHeaders(context);
 

src/IdentityServer/Endpoints/Results/DeviceAuthorizationResult.cs

@@ -32,9 +32,9 @@ public DeviceAuthorizationResult(DeviceAuthorizationResponse response)
     }
 }
 
-internal class DeviceAuthorizationResultGenerator : IEndpointResultGenerator<DeviceAuthorizationResult>
+internal class DeviceAuthorizationHttpWriter : IHttpResponseWriter<DeviceAuthorizationResult>
 {
-    public async Task ExecuteAsync(DeviceAuthorizationResult result, HttpContext context)
+    public async Task WriteHttpResponse(DeviceAuthorizationResult result, HttpContext context)
     {
         context.Response.SetNoCache();
 

src/IdentityServer/Endpoints/Results/DiscoveryDocumentResult.cs

@@ -46,10 +46,10 @@ public DiscoveryDocumentResult(Dictionary<string, object> entries, int? maxAge =
     }
 }
 
-class DiscoveryDocumentResultGenerator : IEndpointResultGenerator<DiscoveryDocumentResult>
+class DiscoveryDocumentHttpWriter : IHttpResponseWriter<DiscoveryDocumentResult>
 {
     /// <inheritdoc/>
-    public Task ExecuteAsync(DiscoveryDocumentResult result, HttpContext context)
+    public Task WriteHttpResponse(DiscoveryDocumentResult result, HttpContext context)
     {
         if (result.MaxAge.HasValue && result.MaxAge.Value >= 0)
         {

src/IdentityServer/Endpoints/Results/EndPointResult.cs

@@ -11,7 +11,9 @@
 namespace Duende.IdentityServer.Endpoints.Results;
 
 /// <summary>
-/// Provides the base implementation of IEndpointResult that invokes the corresponding IEndpointResultGenerator<typeparamref name="T"/>.
+/// Provides the base implementation of <see cref="IEndpointResult"/> that
+/// invokes the corresponding <see cref="IHttpResponseWriter{T}"/> to write the
+/// result as an http response.
 /// </summary>
 /// <typeparam name="T"></typeparam>
 public abstract class EndpointResult<T> : IEndpointResult
@@ -20,16 +22,16 @@ public abstract class EndpointResult<T> : IEndpointResult
     /// <inheritdoc/>
     public async Task ExecuteAsync(HttpContext context)
     {
-        var generator = context.RequestServices.GetService<IEndpointResultGenerator<T>>();
-        if (generator != null)
+        var writer = context.RequestServices.GetService<IHttpResponseWriter<T>>();
+        if (writer != null)
         {
             T target = this as T;
             if (target == null)
             {
-                throw new Exception($"Type paramter {typeof(T)} must be the class derived from 'EndPointResult<T>'.");
+                throw new Exception($"Type parameter {typeof(T)} must be the class derived from 'EndpointResult<T>'.");
             }
 
-            await generator.ExecuteAsync(target, context);
+            await writer.WriteHttpResponse(target, context);
         }
         else
         {

src/IdentityServer/Endpoints/Results/EndSessionCallbackResult.cs

@@ -37,16 +37,16 @@ public EndSessionCallbackResult(EndSessionCallbackValidationResult result)
     }
 }
 
-class EndSessionCallbackResultGenerator : IEndpointResultGenerator<EndSessionCallbackResult>
+class EndSessionCallbackHttpWriter : IHttpResponseWriter<EndSessionCallbackResult>
 {
-    public EndSessionCallbackResultGenerator(IdentityServerOptions options)
+    public EndSessionCallbackHttpWriter(IdentityServerOptions options)
     {
         _options = options;
     }
 
     private IdentityServerOptions _options;
 
-    public async Task ExecuteAsync(EndSessionCallbackResult result, HttpContext context)
+    public async Task WriteHttpResponse(EndSessionCallbackResult result, HttpContext context)
     {
         if (result.Result.IsError)
         {

src/IdentityServer/Endpoints/Results/EndSessionResult.cs

@@ -38,9 +38,9 @@ public EndSessionResult(EndSessionValidationResult result)
 }
 
 
-class EndSessionResultGenerator : IEndpointResultGenerator<EndSessionResult>
+class EndSessionHttpWriter : IHttpResponseWriter<EndSessionResult>
 {
-    public EndSessionResultGenerator(
+    public EndSessionHttpWriter(
         IdentityServerOptions options,
         IClock clock,
         IServerUrls urls,
@@ -57,7 +57,7 @@ public EndSessionResultGenerator(
     private IServerUrls _urls;
     private IMessageStore<LogoutMessage> _logoutMessageStore;
 
-    public async Task ExecuteAsync(EndSessionResult result, HttpContext context)
+    public async Task WriteHttpResponse(EndSessionResult result, HttpContext context)
     {
         var validatedRequest = result.Result.IsError ? null : result.Result.ValidatedRequest;
 

src/IdentityServer/Endpoints/Results/IntrospectionResult.cs

@@ -37,9 +37,9 @@ public IntrospectionResult(Dictionary<string, object> entries)
 }
 
 
-class IntrospectionResultGenerator : IEndpointResultGenerator<IntrospectionResult>
+class IntrospectionHttpWriter : IHttpResponseWriter<IntrospectionResult>
 {
-    public Task ExecuteAsync(IntrospectionResult result, HttpContext context)
+    public Task WriteHttpResponse(IntrospectionResult result, HttpContext context)
     {
         context.Response.SetNoCache();
 

src/IdentityServer/Endpoints/Results/JsonWebKeysResult.cs

@@ -46,9 +46,9 @@ public JsonWebKeysResult(IEnumerable<JsonWebKey> webKeys, int? maxAge)
     }
 }
 
-class JsonWebKeysResultGenerator : IEndpointResultGenerator<JsonWebKeysResult>
+class JsonWebKeysHttpWriter : IHttpResponseWriter<JsonWebKeysResult>
 {
-    public Task ExecuteAsync(JsonWebKeysResult result, HttpContext context)
+    public Task WriteHttpResponse(JsonWebKeysResult result, HttpContext context)
     {
         if (result.MaxAge.HasValue && result.MaxAge.Value >= 0)
         {

src/IdentityServer/Endpoints/Results/ProtectedResourceErrorResult.cs

@@ -38,9 +38,9 @@ public ProtectedResourceErrorResult(string error, string errorDescription = null
     }
 }
 
-internal class ProtectedResourceErrorResultGenerator : IEndpointResultGenerator<ProtectedResourceErrorResult>
+internal class ProtectedResourceErrorHttpWriter : IHttpResponseWriter<ProtectedResourceErrorResult>
 {
-    public Task ExecuteAsync(ProtectedResourceErrorResult result, HttpContext context)
+    public Task WriteHttpResponse(ProtectedResourceErrorResult result, HttpContext context)
     {
         context.Response.StatusCode = 401;
         context.Response.SetNoCache();

src/IdentityServer/Endpoints/Results/PushedAuthorizationErrorResult.cs

@@ -33,9 +33,9 @@ public PushedAuthorizationErrorResult(PushedAuthorizationFailure response)
     }
 }
 
-internal class PushedAuthorizationErrorResultGenerator : IEndpointResultGenerator<PushedAuthorizationErrorResult>
+internal class PushedAuthorizationErrorHttpWriter : IHttpResponseWriter<PushedAuthorizationErrorResult>
 {
-    public async Task ExecuteAsync(PushedAuthorizationErrorResult result, HttpContext context)
+    public async Task WriteHttpResponse(PushedAuthorizationErrorResult result, HttpContext context)
     {
         context.Response.SetNoCache();
         context.Response.StatusCode = (int) HttpStatusCode.BadRequest;

src/IdentityServer/Endpoints/Results/PushedAuthorizationResult.cs

@@ -33,9 +33,9 @@ public PushedAuthorizationResult(PushedAuthorizationSuccess response)
     }
 }
 
-internal class PushedAuthorizationResultGenerator : IEndpointResultGenerator<PushedAuthorizationResult>
+internal class PushedAuthorizationHttpWriter : IHttpResponseWriter<PushedAuthorizationResult>
 {
-    public async Task ExecuteAsync(PushedAuthorizationResult result, HttpContext context)
+    public async Task WriteHttpResponse(PushedAuthorizationResult result, HttpContext context)
     {
         context.Response.SetNoCache();
         context.Response.StatusCode = (int) HttpStatusCode.Created;