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>

routers/user/auth_openid.go

@@ -9,19 +9,18 @@ import (
 	"net/url"
 
 	"code.gitea.io/gitea/models"
-	"code.gitea.io/gitea/modules/auth"
 	"code.gitea.io/gitea/modules/auth/openid"
 	"code.gitea.io/gitea/modules/base"
 	"code.gitea.io/gitea/modules/context"
+	auth "code.gitea.io/gitea/modules/forms"
 	"code.gitea.io/gitea/modules/generate"
 	"code.gitea.io/gitea/modules/hcaptcha"
 	"code.gitea.io/gitea/modules/log"
 	"code.gitea.io/gitea/modules/recaptcha"
 	"code.gitea.io/gitea/modules/setting"
 	"code.gitea.io/gitea/modules/timeutil"
+	"code.gitea.io/gitea/modules/web"
 	"code.gitea.io/gitea/services/mailer"
-
-	"gitea.com/macaron/captcha"
 )
 
 const (
@@ -90,7 +89,8 @@ func allowedOpenIDURI(uri string) (err error) {
 }
 
 // SignInOpenIDPost response for openid sign in request
-func SignInOpenIDPost(ctx *context.Context, form auth.SignInOpenIDForm) {
+func SignInOpenIDPost(ctx *context.Context) {
+	form := web.GetForm(ctx).(*auth.SignInOpenIDForm)
 	ctx.Data["Title"] = ctx.Tr("sign_in")
 	ctx.Data["PageIsSignIn"] = true
 	ctx.Data["PageIsLoginOpenID"] = true
@@ -143,9 +143,9 @@ func SignInOpenIDPost(ctx *context.Context, form auth.SignInOpenIDForm) {
 // signInOpenIDVerify handles response from OpenID provider
 func signInOpenIDVerify(ctx *context.Context) {
 
-	log.Trace("Incoming call to: " + ctx.Req.Request.URL.String())
+	log.Trace("Incoming call to: " + ctx.Req.URL.String())
 
-	fullURL := setting.AppURL + ctx.Req.Request.URL.String()[1:]
+	fullURL := setting.AppURL + ctx.Req.URL.String()[1:]
 	log.Trace("Full URL: " + fullURL)
 
 	var id, err = openid.Verify(fullURL)
@@ -276,8 +276,8 @@ func ConnectOpenID(ctx *context.Context) {
 }
 
 // ConnectOpenIDPost handles submission of a form to connect an OpenID URI to an existing account
-func ConnectOpenIDPost(ctx *context.Context, form auth.ConnectOpenIDForm) {
-
+func ConnectOpenIDPost(ctx *context.Context) {
+	form := web.GetForm(ctx).(*auth.ConnectOpenIDForm)
 	oid, _ := ctx.Session.Get("openid_verified_uri").(string)
 	if oid == "" {
 		ctx.Redirect(setting.AppSubURL + "/user/login/openid")
@@ -346,7 +346,8 @@ func RegisterOpenID(ctx *context.Context) {
 }
 
 // RegisterOpenIDPost handles submission of a form to create a new user authenticated via an OpenID URI
-func RegisterOpenIDPost(ctx *context.Context, cpt *captcha.Captcha, form auth.SignUpOpenIDForm) {
+func RegisterOpenIDPost(ctx *context.Context) {
+	form := web.GetForm(ctx).(*auth.SignUpOpenIDForm)
 	oid, _ := ctx.Session.Get("openid_verified_uri").(string)
 	if oid == "" {
 		ctx.Redirect(setting.AppSubURL + "/user/login/openid")
@@ -369,7 +370,7 @@ func RegisterOpenIDPost(ctx *context.Context, cpt *captcha.Captcha, form auth.Si
 		var err error
 		switch setting.Service.CaptchaType {
 		case setting.ImageCaptcha:
-			valid = cpt.VerifyReq(ctx.Req)
+			valid = context.GetImageCaptcha().VerifyReq(ctx.Req)
 		case setting.ReCaptcha:
 			if err := ctx.Req.ParseForm(); err != nil {
 				ctx.ServerError("", err)