Files
gitea-mcp/internal/tools/alias_test.go
T
mathiasandClaude Opus 4.8 184d5a95dd
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fix(tools,gitea): alias repo/index args and reject empty path segments
Per-repo MCP tools 404'd while owner-level tools worked (#36). Root cause was
a parameter-name contract mismatch, not a routing fault: every per-repo tool
declares the repo identifier as 'name' (and issue/PR index as 'number'), but
every caller — the claude.ai connector, LLMs primed on gitea's own API — sends
'repo' and 'index'. The unmatched fields zero-valued the upstream path segment,
producing '/api/v1/repos/{owner}//...', which gitea answers with its generic
api-404 whose body points at /api/swagger. That swagger pointer is gitea boiler-
plate, not a misroute — the MCP dispatch was correct all along.

Two layers of defence:
- parseArgs aliases repo->name and index->number (explicit canonical wins;
  alias key left intact so pr_merge's real 'index' field is unaffected). Kills
  the recurrence by accepting the idiomatic argument names.
- the gitea client rejects any path with an empty segment before the HTTP call,
  returning ErrValidation instead of forwarding a malformed path and surfacing
  gitea's opaque swagger-404. Kills the silent-misleading-error class.

Closes #36

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-10 10:16:33 +02:00

50 lines
1.8 KiB
Go

package tools_test
import (
"context"
"encoding/json"
"net/http"
"net/http/httptest"
"testing"
"gitea.d-ma.be/mathias/gitea-mcp/internal/allowlist"
"gitea.d-ma.be/mathias/gitea-mcp/internal/gitea"
"gitea.d-ma.be/mathias/gitea-mcp/internal/tools"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
// #36: every caller (claude.ai connector, gitea's own convention) sends the
// repo identifier as `repo` and issue/PR index as `index`, but the tools
// declare them as `name` and `number`. Unmatched fields zero-valued the path
// segment and produced gitea's misleading /api/swagger 404. parseArgs now
// aliases repo->name and index->number so the idiomatic call works.
func TestRepoAndIndexAliasesResolve(t *testing.T) {
tests := []struct {
name string
args string
wantPath string
}{
{"repo+index aliases", `{"owner":"mathias","repo":"infra","index":7}`, "/api/v1/repos/mathias/infra/issues/7"},
{"canonical name+number", `{"owner":"mathias","name":"infra","number":7}`, "/api/v1/repos/mathias/infra/issues/7"},
{"explicit name wins over repo", `{"owner":"mathias","name":"infra","repo":"ignored","number":7}`, "/api/v1/repos/mathias/infra/issues/7"},
}
for _, tc := range tests {
t.Run(tc.name, func(t *testing.T) {
var gotPath string
srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
gotPath = r.URL.Path
w.Header().Set("Content-Type", "application/json")
_, _ = w.Write([]byte(`{"number":7,"title":"t"}`))
}))
defer srv.Close()
tool := tools.NewIssueGet(gitea.NewClient(srv.URL, "tok"), allowlist.New([]string{"mathias"}))
out, err := tool.Call(context.Background(), json.RawMessage(tc.args))
require.NoError(t, err)
assert.Equal(t, tc.wantPath, gotPath)
assert.Contains(t, string(out), `"number":7`)
})
}
}