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Add HttpServerSessionMode for hybrid stateful/stateless HTTP serving (#1796)

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Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Co-authored-by: Jeff Handley <jeffhandley@users.noreply.github.com>
This commit is contained in:
pardhu 2026-08-12 23:36:36 -07:00 • committed by GitHub
commit c6a97d94d6
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1 changed files with 764 additions and 150 deletions
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8
tests/ModelContextProtocol.AspNetCore.Tests/July2026ProtocolHttpHandlerTests.cs
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@ -24,10 +24,10 @@ public class July2026ProtocolHttpHandlerTests(ITestOutputHelper outputHelper) :
options.ServerInfo = new Implementation { Name = nameof(July2026ProtocolHttpHandlerTests), Version = "1" };
}).WithHttpTransport(options =>
{
// Stateless = false maps the GET/DELETE endpoints and opts the author into sessions. Starting with
// SessionMode = HttpServerSessionMode.Stateful maps the GET/DELETE endpoints and opts the author into sessions. Starting with
// the 2026-07-28 protocol revision, Streamable HTTP no longer supports sessions, so such a request is
// refused on a session-enabled server. Stateless = true (the default) serves them natively.
options.Stateless = stateless;
// refused on a session-enabled server. SessionMode = HttpServerSessionMode.Stateless (the default) serves them natively.
options.SessionMode = stateless ? HttpServerSessionMode.Stateless : HttpServerSessionMode.Stateful;
});
_app = Builder.Build();
@ -69,7 +69,7 @@ public class July2026ProtocolHttpHandlerTests(ITestOutputHelper outputHelper) :
public async Task Request_OnStatefulServer_IsRefused_WithUnsupportedProtocolVersionError()
{
// Starting with the 2026-07-28 protocol revision, Streamable HTTP no longer supports sessions (SEP-2567),
// so the server cannot honor it when configured with sessions (Stateless = false). The server refuses that
// so the server cannot honor it when configured with sessions (SessionMode = HttpServerSessionMode.Stateful). The server refuses that
// version with UnsupportedProtocolVersion (excluding it from Supported) so a dual-path client falls back
// to the initialize handshake.
await StartAsync(stateless: false);