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feat!: support protocol 2026-07-28 over HTTP and add --bind (#227)

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Adds MCP protocol `2026-07-28` over HTTP through the official Go SDK, and validates the `Origin` header on every request as the spec requires.

Tool and Gitea failures now come back as an ordinary `tools/call` result carrying `result.isError: true`, the way the SDK's own tool wrapper reports them. Malformed requests, unknown tools or methods, and server faults stay JSON-RPC errors.

Adds `-b, --bind` to narrow the listen address. The default still accepts every interface, so this is opt-in hardening. It matters because a request that omits `Authorization` falls back to the server's own token.

**Breaking: the HTTP endpoint no longer keeps a session per client.** What changes for a client:

1. `/mcp` accepts `POST` only, and answers `405` to `GET` or `DELETE`.
2. The server neither sends nor accepts `Mcp-Session-Id`, so there is no session handshake to perform.
3. There is no standalone SSE stream and no `Last-Event-ID` resumption. If a response stream breaks, send the whole request again under a new JSON-RPC id.

Clients that already speak current streamable HTTP need no changes. Anything relying on the session handshake or the standalone SSE stream should stay on the previous release.

---------

Co-authored-by: silverwind <me@silverwind.io>
Reviewed-on: https://gitea.com/gitea/gitea-mcp/pulls/227
Reviewed-by: silverwind <2021+silverwind@noreply.gitea.com>
Co-authored-by: Bo-Yi Wu <appleboy.tw@gmail.com>
This commit is contained in:
Bo-Yi Wu
2026-08-07 15:14:26 +00:00
committed by silverwind
parent efcbdbb17f
commit 75f1adf979
13 changed files with 806 additions and 223 deletions
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pkg/to/to_test.go
+11 -2
View File
@@ -27,7 +27,16 @@ func TestTextResult(t *testing.T) {
func TestErrorResult(t *testing.T) {
want := errors.New("failed")
result, err := ErrorResult(want)
if result != nil || !errors.Is(err, want) {
t.Errorf("ErrorResult() = (%#v, %v), want (nil, %v)", result, err, want)
if err != nil {
t.Fatalf("ErrorResult() error = %v", err)
}
if !result.IsError {
t.Error("IsError = false, want true")
}
if len(result.Content) != 1 {
t.Fatalf("len(Content) = %d, want 1", len(result.Content))
}
if content, ok := result.Content[0].(*mcp.TextContent); !ok || content.Text != want.Error() {
t.Errorf("Content[0] = %#v, want text %q", result.Content[0], want)
}
}