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/repo/editor_test.go

@@ -0,0 +1,83 @@
+// Copyright 2018 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 repo
+
+import (
+	"testing"
+
+	"code.gitea.io/gitea/models"
+	"code.gitea.io/gitea/modules/git"
+	"code.gitea.io/gitea/modules/test"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestCleanUploadName(t *testing.T) {
+	models.PrepareTestEnv(t)
+
+	var kases = map[string]string{
+		".git/refs/master":               "",
+		"/root/abc":                      "root/abc",
+		"./../../abc":                    "abc",
+		"a/../.git":                      "",
+		"a/../../../abc":                 "abc",
+		"../../../acd":                   "acd",
+		"../../.git/abc":                 "",
+		"..\\..\\.git/abc":               "..\\..\\.git/abc",
+		"..\\../.git/abc":                "",
+		"..\\../.git":                    "",
+		"abc/../def":                     "def",
+		".drone.yml":                     ".drone.yml",
+		".abc/def/.drone.yml":            ".abc/def/.drone.yml",
+		"..drone.yml.":                   "..drone.yml.",
+		"..a.dotty...name...":            "..a.dotty...name...",
+		"..a.dotty../.folder../.name...": "..a.dotty../.folder../.name...",
+	}
+	for k, v := range kases {
+		assert.EqualValues(t, cleanUploadFileName(k), v)
+	}
+}
+
+func TestGetUniquePatchBranchName(t *testing.T) {
+	models.PrepareTestEnv(t)
+	ctx := test.MockContext(t, "user2/repo1")
+	ctx.SetParams(":id", "1")
+	test.LoadRepo(t, ctx, 1)
+	test.LoadRepoCommit(t, ctx)
+	test.LoadUser(t, ctx, 2)
+	test.LoadGitRepo(t, ctx)
+	defer ctx.Repo.GitRepo.Close()
+
+	expectedBranchName := "user2-patch-1"
+	branchName := GetUniquePatchBranchName(ctx)
+	assert.Equal(t, expectedBranchName, branchName)
+}
+
+func TestGetClosestParentWithFiles(t *testing.T) {
+	models.PrepareTestEnv(t)
+	ctx := test.MockContext(t, "user2/repo1")
+	ctx.SetParams(":id", "1")
+	test.LoadRepo(t, ctx, 1)
+	test.LoadRepoCommit(t, ctx)
+	test.LoadUser(t, ctx, 2)
+	test.LoadGitRepo(t, ctx)
+	defer ctx.Repo.GitRepo.Close()
+
+	repo := ctx.Repo.Repository
+	branch := repo.DefaultBranch
+	gitRepo, _ := git.OpenRepository(repo.RepoPath())
+	defer gitRepo.Close()
+	commit, _ := gitRepo.GetBranchCommit(branch)
+	expectedTreePath := ""
+
+	expectedTreePath = "" // Should return the root dir, empty string, since there are no subdirs in this repo
+	for _, deletedFile := range []string{
+		"dir1/dir2/dir3/file.txt",
+		"file.txt",
+	} {
+		treePath := GetClosestParentWithFiles(deletedFile, commit)
+		assert.Equal(t, expectedTreePath, treePath)
+	}
+}