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>

1 files changed, 11 insertions, 6 deletions

diff --git a/routers/repo/pull.go b/routers/repo/pull.go
index 01c6efaa1d..1862c15f43 100644
--- a/routers/repo/pull.go
+++ b/routers/repo/pull.go
@@ -16,17 +16,19 @@ import (
 	"time"
 
 	"code.gitea.io/gitea/models"
-	"code.gitea.io/gitea/modules/auth"
 	"code.gitea.io/gitea/modules/base"
 	"code.gitea.io/gitea/modules/context"
+	auth "code.gitea.io/gitea/modules/forms"
 	"code.gitea.io/gitea/modules/git"
 	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/middlewares"
 	"code.gitea.io/gitea/modules/notification"
 	repo_module "code.gitea.io/gitea/modules/repository"
 	"code.gitea.io/gitea/modules/setting"
 	"code.gitea.io/gitea/modules/structs"
 	"code.gitea.io/gitea/modules/upload"
 	"code.gitea.io/gitea/modules/util"
+	"code.gitea.io/gitea/modules/web"
 	"code.gitea.io/gitea/routers/utils"
 	"code.gitea.io/gitea/services/gitdiff"
 	pull_service "code.gitea.io/gitea/services/pull"
@@ -168,7 +170,8 @@ func Fork(ctx *context.Context) {
 }
 
 // ForkPost response for forking a repository
-func ForkPost(ctx *context.Context, form auth.CreateRepoForm) {
+func ForkPost(ctx *context.Context) {
+	form := web.GetForm(ctx).(*auth.CreateRepoForm)
 	ctx.Data["Title"] = ctx.Tr("new_fork")
 
 	ctxUser := checkContextUser(ctx, form.UID)
@@ -765,7 +768,8 @@ func UpdatePullRequest(ctx *context.Context) {
 }
 
 // MergePullRequest response for merging pull request
-func MergePullRequest(ctx *context.Context, form auth.MergePullRequestForm) {
+func MergePullRequest(ctx *context.Context) {
+	form := web.GetForm(ctx).(*auth.MergePullRequestForm)
 	issue := checkPullInfo(ctx)
 	if ctx.Written() {
 		return
@@ -954,7 +958,8 @@ func stopTimerIfAvailable(user *models.User, issue *models.Issue) error {
 }
 
 // CompareAndPullRequestPost response for creating pull request
-func CompareAndPullRequestPost(ctx *context.Context, form auth.CreateIssueForm) {
+func CompareAndPullRequestPost(ctx *context.Context) {
+	form := web.GetForm(ctx).(*auth.CreateIssueForm)
 	ctx.Data["Title"] = ctx.Tr("repo.pulls.compare_changes")
 	ctx.Data["PageIsComparePull"] = true
 	ctx.Data["IsDiffCompare"] = true
@@ -974,7 +979,7 @@ func CompareAndPullRequestPost(ctx *context.Context, form auth.CreateIssueForm)
 	}
 	defer headGitRepo.Close()
 
-	labelIDs, assigneeIDs, milestoneID, _ := ValidateRepoMetas(ctx, form, true)
+	labelIDs, assigneeIDs, milestoneID, _ := ValidateRepoMetas(ctx, *form, true)
 	if ctx.Written() {
 		return
 	}
@@ -984,7 +989,7 @@ func CompareAndPullRequestPost(ctx *context.Context, form auth.CreateIssueForm)
 	}
 
 	if ctx.HasError() {
-		auth.AssignForm(form, ctx.Data)
+		middlewares.AssignForm(form, ctx.Data)
 
 		// This stage is already stop creating new pull request, so it does not matter if it has
 		// something to compare or not.