chore: initialize Gitea v1.27.2 fork

Includes direct password setup links in registration emails.

Assisted-by: Codex:GPT-5

modules/httpcache/httpcache_test.go

@@ -0,0 +1,78 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package httpcache
+
+import (
+	"net/http"
+	"net/http/httptest"
+	"testing"
+	"time"
+
+	"gitea.dev/modules/util"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestHandleGenericETagCache(t *testing.T) {
+	matchedEtag := `"matched-etag"`
+	lastModifiedTime := new(time.Date(2021, time.January, 2, 15, 4, 5, 0, time.FixedZone("test-zone", 8*3600)))
+	lastModified := lastModifiedTime.UTC().Format(http.TimeFormat)
+	cacheControl := "max-age=0, private, must-revalidate"
+	type testCase struct {
+		name        string
+		reqHeaders  map[string]string
+		wantHandled bool
+		wantHeaders map[string]string
+		wantStatus  int
+	}
+	cases := []testCase{
+		{
+			name:        "No If-None-Match",
+			wantHandled: false,
+			wantHeaders: map[string]string{"Last-Modified": lastModified, "Cache-Control": cacheControl, "Etag": matchedEtag},
+		},
+		{
+			name:        "Mismatched If-None-Match",
+			reqHeaders:  map[string]string{"If-None-Match": `"mismatched-etag"`},
+			wantHandled: false,
+			wantHeaders: map[string]string{"Last-Modified": lastModified, "Cache-Control": cacheControl, "Etag": matchedEtag},
+		},
+		{
+			name:        "Matched If-None-Match",
+			reqHeaders:  map[string]string{"If-None-Match": matchedEtag},
+			wantHandled: true,
+			wantHeaders: map[string]string{"Last-Modified": lastModified, "Cache-Control": "", "Etag": matchedEtag},
+			wantStatus:  http.StatusNotModified,
+		},
+		{
+			name:        "Multiple Mismatched If-None-Match",
+			reqHeaders:  map[string]string{"If-None-Match": `"mismatched-etag1", "mismatched-etag2"`},
+			wantHandled: false,
+			wantHeaders: map[string]string{"Last-Modified": lastModified, "Cache-Control": cacheControl, "Etag": matchedEtag},
+		},
+		{
+			name:        "Multiple Matched If-None-Match",
+			reqHeaders:  map[string]string{"If-None-Match": `"mismatched-etag", ` + matchedEtag},
+			wantHandled: true,
+			wantHeaders: map[string]string{"Last-Modified": lastModified, "Cache-Control": "", "Etag": matchedEtag},
+			wantStatus:  http.StatusNotModified,
+		},
+	}
+
+	for _, tc := range cases {
+		t.Run(tc.name, func(t *testing.T) {
+			req := httptest.NewRequest(http.MethodGet, "http://example.com/test", nil)
+			for k, v := range tc.reqHeaders {
+				req.Header.Set(k, v)
+			}
+			w := httptest.NewRecorder()
+			assert.Equal(t, tc.wantHandled, HandleGenericETagPrivateCache(req, w, matchedEtag, lastModifiedTime))
+			resp := w.Result()
+			for k, v := range tc.wantHeaders {
+				assert.Equal(t, v, resp.Header.Get(k))
+			}
+			assert.Equal(t, tc.wantStatus, util.Iif(resp.StatusCode == http.StatusOK, 0, resp.StatusCode))
+		})
+	}
+}