Refactor routers directory (#15800)

* refactor routers directory

* move func used for web and api to common

* make corsHandler a function to prohibit side efects

* rm unused func

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

routers/web/user/setting/adopt.go

@@ -0,0 +1,64 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// Use of this source code is governed by a MIT-style
+// license that can be found in the LICENSE file.
+
+package setting
+
+import (
+	"path/filepath"
+
+	"code.gitea.io/gitea/models"
+	"code.gitea.io/gitea/modules/context"
+	"code.gitea.io/gitea/modules/repository"
+	"code.gitea.io/gitea/modules/setting"
+	"code.gitea.io/gitea/modules/util"
+)
+
+// AdoptOrDeleteRepository adopts or deletes a repository
+func AdoptOrDeleteRepository(ctx *context.Context) {
+	ctx.Data["Title"] = ctx.Tr("settings")
+	ctx.Data["PageIsSettingsRepos"] = true
+	allowAdopt := ctx.IsUserSiteAdmin() || setting.Repository.AllowAdoptionOfUnadoptedRepositories
+	ctx.Data["allowAdopt"] = allowAdopt
+	allowDelete := ctx.IsUserSiteAdmin() || setting.Repository.AllowDeleteOfUnadoptedRepositories
+	ctx.Data["allowDelete"] = allowDelete
+
+	dir := ctx.Query("id")
+	action := ctx.Query("action")
+
+	ctxUser := ctx.User
+	root := filepath.Join(models.UserPath(ctxUser.LowerName))
+
+	// check not a repo
+	has, err := models.IsRepositoryExist(ctxUser, dir)
+	if err != nil {
+		ctx.ServerError("IsRepositoryExist", err)
+		return
+	}
+
+	isDir, err := util.IsDir(filepath.Join(root, dir+".git"))
+	if err != nil {
+		ctx.ServerError("IsDir", err)
+		return
+	}
+	if has || !isDir {
+		// Fallthrough to failure mode
+	} else if action == "adopt" && allowAdopt {
+		if _, err := repository.AdoptRepository(ctxUser, ctxUser, models.CreateRepoOptions{
+			Name:      dir,
+			IsPrivate: true,
+		}); err != nil {
+			ctx.ServerError("repository.AdoptRepository", err)
+			return
+		}
+		ctx.Flash.Success(ctx.Tr("repo.adopt_preexisting_success", dir))
+	} else if action == "delete" && allowDelete {
+		if err := repository.DeleteUnadoptedRepository(ctxUser, ctxUser, dir); err != nil {
+			ctx.ServerError("repository.AdoptRepository", err)
+			return
+		}
+		ctx.Flash.Success(ctx.Tr("repo.delete_preexisting_success", dir))
+	}
+
+	ctx.Redirect(setting.AppSubURL + "/user/settings/repos")
+}