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/issue_dependency.go

@@ -0,0 +1,129 @@
+// 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 (
+	"net/http"
+
+	"code.gitea.io/gitea/models"
+	"code.gitea.io/gitea/modules/context"
+	"code.gitea.io/gitea/modules/setting"
+)
+
+// AddDependency adds new dependencies
+func AddDependency(ctx *context.Context) {
+	issueIndex := ctx.ParamsInt64("index")
+	issue, err := models.GetIssueByIndex(ctx.Repo.Repository.ID, issueIndex)
+	if err != nil {
+		ctx.ServerError("GetIssueByIndex", err)
+		return
+	}
+
+	// Check if the Repo is allowed to have dependencies
+	if !ctx.Repo.CanCreateIssueDependencies(ctx.User, issue.IsPull) {
+		ctx.Error(http.StatusForbidden, "CanCreateIssueDependencies")
+		return
+	}
+
+	depID := ctx.QueryInt64("newDependency")
+
+	if err = issue.LoadRepo(); err != nil {
+		ctx.ServerError("LoadRepo", err)
+		return
+	}
+
+	// Redirect
+	defer ctx.Redirect(issue.HTMLURL(), http.StatusSeeOther)
+
+	// Dependency
+	dep, err := models.GetIssueByID(depID)
+	if err != nil {
+		ctx.Flash.Error(ctx.Tr("repo.issues.dependency.add_error_dep_issue_not_exist"))
+		return
+	}
+
+	// Check if both issues are in the same repo if cross repository dependencies is not enabled
+	if issue.RepoID != dep.RepoID && !setting.Service.AllowCrossRepositoryDependencies {
+		ctx.Flash.Error(ctx.Tr("repo.issues.dependency.add_error_dep_not_same_repo"))
+		return
+	}
+
+	// Check if issue and dependency is the same
+	if dep.ID == issue.ID {
+		ctx.Flash.Error(ctx.Tr("repo.issues.dependency.add_error_same_issue"))
+		return
+	}
+
+	err = models.CreateIssueDependency(ctx.User, issue, dep)
+	if err != nil {
+		if models.IsErrDependencyExists(err) {
+			ctx.Flash.Error(ctx.Tr("repo.issues.dependency.add_error_dep_exists"))
+			return
+		} else if models.IsErrCircularDependency(err) {
+			ctx.Flash.Error(ctx.Tr("repo.issues.dependency.add_error_cannot_create_circular"))
+			return
+		} else {
+			ctx.ServerError("CreateOrUpdateIssueDependency", err)
+			return
+		}
+	}
+}
+
+// RemoveDependency removes the dependency
+func RemoveDependency(ctx *context.Context) {
+	issueIndex := ctx.ParamsInt64("index")
+	issue, err := models.GetIssueByIndex(ctx.Repo.Repository.ID, issueIndex)
+	if err != nil {
+		ctx.ServerError("GetIssueByIndex", err)
+		return
+	}
+
+	// Check if the Repo is allowed to have dependencies
+	if !ctx.Repo.CanCreateIssueDependencies(ctx.User, issue.IsPull) {
+		ctx.Error(http.StatusForbidden, "CanCreateIssueDependencies")
+		return
+	}
+
+	depID := ctx.QueryInt64("removeDependencyID")
+
+	if err = issue.LoadRepo(); err != nil {
+		ctx.ServerError("LoadRepo", err)
+		return
+	}
+
+	// Dependency Type
+	depTypeStr := ctx.Req.PostForm.Get("dependencyType")
+
+	var depType models.DependencyType
+
+	switch depTypeStr {
+	case "blockedBy":
+		depType = models.DependencyTypeBlockedBy
+	case "blocking":
+		depType = models.DependencyTypeBlocking
+	default:
+		ctx.Error(http.StatusBadRequest, "GetDependecyType")
+		return
+	}
+
+	// Dependency
+	dep, err := models.GetIssueByID(depID)
+	if err != nil {
+		ctx.ServerError("GetIssueByID", err)
+		return
+	}
+
+	if err = models.RemoveIssueDependency(ctx.User, issue, dep, depType); err != nil {
+		if models.IsErrDependencyNotExists(err) {
+			ctx.Flash.Error(ctx.Tr("repo.issues.dependency.add_error_dep_not_exist"))
+			return
+		}
+		ctx.ServerError("RemoveIssueDependency", err)
+		return
+	}
+
+	// Redirect
+	ctx.Redirect(issue.HTMLURL(), http.StatusSeeOther)
+}