Move macaron to chi (#14293)

Use [chi](https://github.com/go-chi/chi) instead of the forked [macaron](https://gitea.com/macaron/macaron). Since macaron and chi have conflicts with session share, this big PR becomes a have-to thing. According my previous idea, we can replace macaron step by step but I'm wrong. :( Below is a list of big changes on this PR.

- [x] Define `context.ResponseWriter` interface with an implementation `context.Response`.
- [x] Use chi instead of macaron, and also a customize `Route` to wrap chi so that the router usage is similar as before.
- [x] Create different routers for `web`, `api`, `internal` and `install` so that the codes will be more clear and no magic .
- [x] Use https://github.com/unrolled/render instead of macaron's internal render
- [x] Use https://github.com/NYTimes/gziphandler instead of https://gitea.com/macaron/gzip
- [x] Use https://gitea.com/go-chi/session which is a modified version of https://gitea.com/macaron/session and removed `nodb` support since it will not be maintained. **BREAK**
- [x] Use https://gitea.com/go-chi/captcha which is a modified version of https://gitea.com/macaron/captcha
- [x] Use https://gitea.com/go-chi/cache which is a modified version of https://gitea.com/macaron/cache
- [x] Use https://gitea.com/go-chi/binding which is a modified version of https://gitea.com/macaron/binding
- [x] Use https://github.com/go-chi/cors instead of https://gitea.com/macaron/cors
- [x] Dropped https://gitea.com/macaron/i18n and make a new one in `code.gitea.io/gitea/modules/translation`
- [x] Move validation form structs from `code.gitea.io/gitea/modules/auth` to `code.gitea.io/gitea/modules/forms` to avoid dependency cycle.
- [x] Removed macaron log service because it's not need any more. **BREAK**
- [x] All form structs have to be get by `web.GetForm(ctx)` in the route function but not as a function parameter on routes definition.
- [x] Move Git HTTP protocol implementation to use routers directly.
- [x] Fix the problem that chi routes don't support trailing slash but macaron did.
- [x] `/api/v1/swagger` now will be redirect to `/api/swagger` but not render directly so that `APIContext` will not create a html render. 

Notices:
- Chi router don't support request with trailing slash
- Integration test `TestUserHeatmap` maybe mysql version related. It's failed on my macOS(mysql 5.7.29 installed via brew) but succeed on CI.

Co-authored-by: 6543 <6543@obermui.de>

7 files changed, 20 insertions, 24 deletions

diff --git a/integrations/api_helper_for_declarative_test.go b/integrations/api_helper_for_declarative_test.go
index b8e513958e..551a9bb751 100644
--- a/integrations/api_helper_for_declarative_test.go
+++ b/integrations/api_helper_for_declarative_test.go
@@ -14,7 +14,7 @@ import (
 	"time"
 
 	"code.gitea.io/gitea/models"
-	"code.gitea.io/gitea/modules/auth"
+	auth "code.gitea.io/gitea/modules/forms"
 	"code.gitea.io/gitea/modules/queue"
 	api "code.gitea.io/gitea/modules/structs"
 
diff --git a/integrations/api_pull_test.go b/integrations/api_pull_test.go
index 61daf917ff..369f4ce31f 100644
--- a/integrations/api_pull_test.go
+++ b/integrations/api_pull_test.go
@@ -10,7 +10,7 @@ import (
 	"testing"
 
 	"code.gitea.io/gitea/models"
-	"code.gitea.io/gitea/modules/auth"
+	auth "code.gitea.io/gitea/modules/forms"
 	"code.gitea.io/gitea/modules/setting"
 	api "code.gitea.io/gitea/modules/structs"
 	issue_service "code.gitea.io/gitea/services/issue"
diff --git a/integrations/api_releases_test.go b/integrations/api_releases_test.go
index 8328b014d6..870d7d0e64 100644
--- a/integrations/api_releases_test.go
+++ b/integrations/api_releases_test.go
@@ -131,7 +131,7 @@ func TestAPIGetReleaseByTag(t *testing.T) {
 
 	tag := "v1.1"
 
-	urlStr := fmt.Sprintf("/api/v1/repos/%s/%s/releases/tags/%s/",
+	urlStr := fmt.Sprintf("/api/v1/repos/%s/%s/releases/tags/%s",
 		owner.Name, repo.Name, tag)
 
 	req := NewRequestf(t, "GET", urlStr)
@@ -144,7 +144,7 @@ func TestAPIGetReleaseByTag(t *testing.T) {
 
 	nonexistingtag := "nonexistingtag"
 
-	urlStr = fmt.Sprintf("/api/v1/repos/%s/%s/releases/tags/%s/",
+	urlStr = fmt.Sprintf("/api/v1/repos/%s/%s/releases/tags/%s",
 		owner.Name, repo.Name, nonexistingtag)
 
 	req = NewRequestf(t, "GET", urlStr)
@@ -163,7 +163,7 @@ func TestAPIDeleteTagByName(t *testing.T) {
 	session := loginUser(t, owner.LowerName)
 	token := getTokenForLoggedInUser(t, session)
 
-	urlStr := fmt.Sprintf("/api/v1/repos/%s/%s/releases/tags/delete-tag/?token=%s",
+	urlStr := fmt.Sprintf("/api/v1/repos/%s/%s/releases/tags/delete-tag?token=%s",
 		owner.Name, repo.Name, token)
 
 	req := NewRequestf(t, http.MethodDelete, urlStr)
@@ -171,7 +171,7 @@ func TestAPIDeleteTagByName(t *testing.T) {
 
 	// Make sure that actual releases can't be deleted outright
 	createNewReleaseUsingAPI(t, session, token, owner, repo, "release-tag", "", "Release Tag", "test")
-	urlStr = fmt.Sprintf("/api/v1/repos/%s/%s/releases/tags/release-tag/?token=%s",
+	urlStr = fmt.Sprintf("/api/v1/repos/%s/%s/releases/tags/release-tag?token=%s",
 		owner.Name, repo.Name, token)
 
 	req = NewRequestf(t, http.MethodDelete, urlStr)
diff --git a/integrations/create_no_session_test.go b/integrations/create_no_session_test.go
index ae0d9f8120..89682e95cf 100644
--- a/integrations/create_no_session_test.go
+++ b/integrations/create_no_session_test.go
@@ -17,7 +17,7 @@ import (
 	"code.gitea.io/gitea/modules/util"
 	"code.gitea.io/gitea/routers/routes"
 
-	"gitea.com/macaron/session"
+	"gitea.com/go-chi/session"
 	"github.com/stretchr/testify/assert"
 )
 
@@ -58,9 +58,7 @@ func TestSessionFileCreation(t *testing.T) {
 	oldSessionConfig := setting.SessionConfig.ProviderConfig
 	defer func() {
 		setting.SessionConfig.ProviderConfig = oldSessionConfig
-		c = routes.NewChi()
-		c.Mount("/", routes.NormalRoutes())
-		routes.DelegateToMacaron(c)
+		c = routes.NormalRoutes()
 	}()
 
 	var config session.Options
@@ -84,9 +82,7 @@ func TestSessionFileCreation(t *testing.T) {
 
 	setting.SessionConfig.ProviderConfig = string(newConfigBytes)
 
-	c = routes.NewChi()
-	c.Mount("/", routes.NormalRoutes())
-	routes.DelegateToMacaron(c)
+	c = routes.NormalRoutes()
 
 	t.Run("NoSessionOnViewIssue", func(t *testing.T) {
 		defer PrintCurrentTest(t)()
diff --git a/integrations/integration_test.go b/integrations/integration_test.go
index f3b2644c78..ee005c087d 100644
--- a/integrations/integration_test.go
+++ b/integrations/integration_test.go
@@ -31,15 +31,15 @@ import (
 	"code.gitea.io/gitea/modules/setting"
 	"code.gitea.io/gitea/modules/storage"
 	"code.gitea.io/gitea/modules/util"
+	"code.gitea.io/gitea/modules/web"
 	"code.gitea.io/gitea/routers"
 	"code.gitea.io/gitea/routers/routes"
 
 	"github.com/PuerkitoBio/goquery"
-	"github.com/go-chi/chi"
 	"github.com/stretchr/testify/assert"
 )
 
-var c chi.Router
+var c *web.Route
 
 type NilResponseRecorder struct {
 	httptest.ResponseRecorder
@@ -66,9 +66,7 @@ func TestMain(m *testing.M) {
 	defer cancel()
 
 	initIntegrationTest()
-	c = routes.NewChi()
-	c.Mount("/", routes.NormalRoutes())
-	routes.DelegateToMacaron(c)
+	c = routes.NormalRoutes()
 
 	// integration test settings...
 	if setting.Cfg != nil {
@@ -387,6 +385,9 @@ func NewRequestWithJSON(t testing.TB, method, urlStr string, v interface{}) *htt
 
 func NewRequestWithBody(t testing.TB, method, urlStr string, body io.Reader) *http.Request {
 	t.Helper()
+	if !strings.HasPrefix(urlStr, "http") && !strings.HasPrefix(urlStr, "/") {
+		urlStr = "/" + urlStr
+	}
 	request, err := http.NewRequest(method, urlStr, body)
 	assert.NoError(t, err)
 	request.RequestURI = urlStr
diff --git a/integrations/lfs_getobject_test.go b/integrations/lfs_getobject_test.go
index 180182dd42..f364349ef1 100644
--- a/integrations/lfs_getobject_test.go
+++ b/integrations/lfs_getobject_test.go
@@ -19,8 +19,8 @@ import (
 	"code.gitea.io/gitea/modules/lfs"
 	"code.gitea.io/gitea/modules/setting"
 	"code.gitea.io/gitea/modules/storage"
+	"code.gitea.io/gitea/routers/routes"
 
-	"gitea.com/macaron/gzip"
 	gzipp "github.com/klauspost/compress/gzip"
 	"github.com/stretchr/testify/assert"
 )
@@ -121,7 +121,7 @@ func TestGetLFSLarge(t *testing.T) {
 		t.Skip()
 		return
 	}
-	content := make([]byte, gzip.MinSize*10)
+	content := make([]byte, routes.GzipMinSize*10)
 	for i := range content {
 		content[i] = byte(i % 256)
 	}
@@ -137,7 +137,7 @@ func TestGetLFSGzip(t *testing.T) {
 		t.Skip()
 		return
 	}
-	b := make([]byte, gzip.MinSize*10)
+	b := make([]byte, routes.GzipMinSize*10)
 	for i := range b {
 		b[i] = byte(i % 256)
 	}
@@ -158,7 +158,7 @@ func TestGetLFSZip(t *testing.T) {
 		t.Skip()
 		return
 	}
-	b := make([]byte, gzip.MinSize*10)
+	b := make([]byte, routes.GzipMinSize*10)
 	for i := range b {
 		b[i] = byte(i % 256)
 	}
diff --git a/integrations/links_test.go b/integrations/links_test.go
index 2c674c104a..e16b688c8d 100644
--- a/integrations/links_test.go
+++ b/integrations/links_test.go
@@ -32,7 +32,6 @@ func TestLinksNoLogin(t *testing.T) {
 		"/user/login",
 		"/user/forgot_password",
 		"/api/swagger",
-		"/api/v1/swagger",
 		"/user2/repo1",
 		"/user2/repo1/projects",
 		"/user2/repo1/projects/1",
@@ -53,6 +52,7 @@ func TestRedirectsNoLogin(t *testing.T) {
 		"/user2/repo1/src/master/file.txt":           "/user2/repo1/src/branch/master/file.txt",
 		"/user2/repo1/src/master/directory/file.txt": "/user2/repo1/src/branch/master/directory/file.txt",
 		"/user/avatar/Ghost/-1":                      "/img/avatar_default.png",
+		"/api/v1/swagger":                            "/api/swagger",
 	}
 	for link, redirectLink := range redirects {
 		req := NewRequest(t, "GET", link)
@@ -86,7 +86,6 @@ func testLinksAsUser(userName string, t *testing.T) {
 		"/",
 		"/user/forgot_password",
 		"/api/swagger",
-		"/api/v1/swagger",
 		"/issues",
 		"/issues?type=your_repositories&repos=[0]&sort=&state=open",
 		"/issues?type=assigned&repos=[0]&sort=&state=open",