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/private/manager.go

@@ -9,17 +9,18 @@ import (
 	"fmt"
 	"net/http"
 
+	"code.gitea.io/gitea/modules/context"
 	"code.gitea.io/gitea/modules/graceful"
 	"code.gitea.io/gitea/modules/log"
 	"code.gitea.io/gitea/modules/private"
 	"code.gitea.io/gitea/modules/queue"
 	"code.gitea.io/gitea/modules/setting"
-
-	"gitea.com/macaron/macaron"
+	"code.gitea.io/gitea/modules/web"
 )
 
 // FlushQueues flushes all the Queues
-func FlushQueues(ctx *macaron.Context, opts private.FlushOptions) {
+func FlushQueues(ctx *context.PrivateContext) {
+	opts := web.GetForm(ctx).(*private.FlushOptions)
 	if opts.NonBlocking {
 		// Save the hammer ctx here - as a new one is created each time you call this.
 		baseCtx := graceful.GetManager().HammerContext()
@@ -34,7 +35,7 @@ func FlushQueues(ctx *macaron.Context, opts private.FlushOptions) {
 		})
 		return
 	}
-	err := queue.GetManager().FlushAll(ctx.Req.Request.Context(), opts.Timeout)
+	err := queue.GetManager().FlushAll(ctx.Req.Context(), opts.Timeout)
 	if err != nil {
 		ctx.JSON(http.StatusRequestTimeout, map[string]interface{}{
 			"err": fmt.Sprintf("%v", err),
@@ -44,19 +45,19 @@ func FlushQueues(ctx *macaron.Context, opts private.FlushOptions) {
 }
 
 // PauseLogging pauses logging
-func PauseLogging(ctx *macaron.Context) {
+func PauseLogging(ctx *context.PrivateContext) {
 	log.Pause()
 	ctx.PlainText(http.StatusOK, []byte("success"))
 }
 
 // ResumeLogging resumes logging
-func ResumeLogging(ctx *macaron.Context) {
+func ResumeLogging(ctx *context.PrivateContext) {
 	log.Resume()
 	ctx.PlainText(http.StatusOK, []byte("success"))
 }
 
 // ReleaseReopenLogging releases and reopens logging files
-func ReleaseReopenLogging(ctx *macaron.Context) {
+func ReleaseReopenLogging(ctx *context.PrivateContext) {
 	if err := log.ReleaseReopen(); err != nil {
 		ctx.JSON(http.StatusInternalServerError, map[string]interface{}{
 			"err": fmt.Sprintf("Error during release and reopen: %v", err),
@@ -67,7 +68,7 @@ func ReleaseReopenLogging(ctx *macaron.Context) {
 }
 
 // RemoveLogger removes a logger
-func RemoveLogger(ctx *macaron.Context) {
+func RemoveLogger(ctx *context.PrivateContext) {
 	group := ctx.Params("group")
 	name := ctx.Params("name")
 	ok, err := log.GetLogger(group).DelLogger(name)
@@ -84,7 +85,8 @@ func RemoveLogger(ctx *macaron.Context) {
 }
 
 // AddLogger adds a logger
-func AddLogger(ctx *macaron.Context, opts private.LoggerOptions) {
+func AddLogger(ctx *context.PrivateContext) {
+	opts := web.GetForm(ctx).(*private.LoggerOptions)
 	if len(opts.Group) == 0 {
 		opts.Group = log.DEFAULT
 	}