feat(tools): repo_search with allowlist post-filter

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

internal/tools/repo_search_test.go

@@ -0,0 +1,61 @@
+package tools_test
+
+import (
+	"context"
+	"encoding/json"
+	"errors"
+	"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"
+)
+
+func TestRepoSearchWithOwner(t *testing.T) {
+	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		assert.Equal(t, "/api/v1/repos/search", r.URL.Path)
+		assert.Equal(t, "infra", r.URL.Query().Get("q"))
+		assert.Equal(t, "mathias", r.URL.Query().Get("owner"))
+		w.Header().Set("Content-Type", "application/json")
+		_, _ = w.Write([]byte(`{"data":[{"name":"infra","full_name":"mathias/infra","default_branch":"main"}],"ok":true}`))
+	}))
+	defer srv.Close()
+
+	tool := tools.NewRepoSearch(gitea.NewClient(srv.URL, "tok"), allowlist.New([]string{"mathias"}))
+	out, err := tool.Call(context.Background(), json.RawMessage(`{"q":"infra","owner":"mathias"}`))
+	require.NoError(t, err)
+	assert.Contains(t, string(out), `"full_name":"mathias/infra"`)
+}
+
+func TestRepoSearchPostFiltersWithoutOwner(t *testing.T) {
+	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		// No owner param expected when owner is empty
+		assert.Empty(t, r.URL.Query().Get("owner"))
+		w.Header().Set("Content-Type", "application/json")
+		_, _ = w.Write([]byte(`{"data":[{"name":"x","full_name":"mathias/x"},{"name":"y","full_name":"evil/y"}],"ok":true}`))
+	}))
+	defer srv.Close()
+
+	tool := tools.NewRepoSearch(gitea.NewClient(srv.URL, "tok"), allowlist.New([]string{"mathias"}))
+	out, err := tool.Call(context.Background(), json.RawMessage(`{"q":"x"}`))
+	require.NoError(t, err)
+	assert.Contains(t, string(out), `"mathias/x"`)
+	assert.NotContains(t, string(out), `"evil/y"`)
+}
+
+func TestRepoSearchAllowlistRejectsExplicitOwner(t *testing.T) {
+	tool := tools.NewRepoSearch(gitea.NewClient("http://unused", ""), allowlist.New([]string{"mathias"}))
+	_, err := tool.Call(context.Background(), json.RawMessage(`{"q":"infra","owner":"evil"}`))
+	require.Error(t, err)
+}
+
+func TestRepoSearchRequiresQ(t *testing.T) {
+	tool := tools.NewRepoSearch(gitea.NewClient("http://unused", ""), allowlist.New([]string{"mathias"}))
+	_, err := tool.Call(context.Background(), json.RawMessage(`{}`))
+	require.Error(t, err)
+	assert.True(t, errors.Is(err, gitea.ErrValidation))
+}