Add a migrate service type switch page (#12697)

* Add a migrat service type switch page

* Improve translations

* remove images

* Fix images

* remove extra create repo button on dashboard

* Follow reviewers' opinions

* Fix frontend lint

* Remove wrong submit file

* Fix tests

* Adjust the size of image

* Apply suggestions from code review

Co-authored-by: 赵智超 <1012112796@qq.com>

* Remove username and password from migration of github/gitlab

* Improve docs

* Improve interface docs

Co-authored-by: 赵智超 <1012112796@qq.com>
Co-authored-by: techknowlogick <techknowlogick@gitea.io>

1 files changed, 173 insertions, 0 deletions

diff --git a/routers/repo/migrate.go b/routers/repo/migrate.go
new file mode 100644
index 0000000000..497f2ce36f
--- /dev/null
+++ b/routers/repo/migrate.go
@@ -0,0 +1,173 @@
+// Copyright 2014 The Gogs Authors. All rights reserved.
+// 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 repo
+
+import (
+	"strings"
+
+	"code.gitea.io/gitea/models"
+	"code.gitea.io/gitea/modules/auth"
+	"code.gitea.io/gitea/modules/base"
+	"code.gitea.io/gitea/modules/context"
+	"code.gitea.io/gitea/modules/migrations"
+	"code.gitea.io/gitea/modules/setting"
+	"code.gitea.io/gitea/modules/structs"
+	"code.gitea.io/gitea/modules/task"
+	"code.gitea.io/gitea/modules/util"
+)
+
+const (
+	tplMigrate base.TplName = "repo/migrate/migrate"
+)
+
+// Migrate render migration of repository page
+func Migrate(ctx *context.Context) {
+	ctx.Data["Services"] = append([]structs.GitServiceType{structs.PlainGitService}, structs.SupportedFullGitService...)
+	serviceType := ctx.QueryInt("service_type")
+	if serviceType == 0 {
+		ctx.HTML(200, tplMigrate)
+		return
+	}
+
+	ctx.Data["Title"] = ctx.Tr("new_migrate")
+	ctx.Data["private"] = getRepoPrivate(ctx)
+	ctx.Data["IsForcedPrivate"] = setting.Repository.ForcePrivate
+	ctx.Data["DisableMirrors"] = setting.Repository.DisableMirrors
+	ctx.Data["mirror"] = ctx.Query("mirror") == "1"
+	ctx.Data["wiki"] = ctx.Query("wiki") == "1"
+	ctx.Data["milestones"] = ctx.Query("milestones") == "1"
+	ctx.Data["labels"] = ctx.Query("labels") == "1"
+	ctx.Data["issues"] = ctx.Query("issues") == "1"
+	ctx.Data["pull_requests"] = ctx.Query("pull_requests") == "1"
+	ctx.Data["releases"] = ctx.Query("releases") == "1"
+	ctx.Data["LFSActive"] = setting.LFS.StartServer
+	// Plain git should be first
+	ctx.Data["service"] = structs.GitServiceType(serviceType)
+
+	ctxUser := checkContextUser(ctx, ctx.QueryInt64("org"))
+	if ctx.Written() {
+		return
+	}
+	ctx.Data["ContextUser"] = ctxUser
+
+	ctx.HTML(200, base.TplName("repo/migrate/"+structs.GitServiceType(serviceType).Name()))
+}
+
+func handleMigrateError(ctx *context.Context, owner *models.User, err error, name string, tpl base.TplName, form *auth.MigrateRepoForm) {
+	switch {
+	case migrations.IsRateLimitError(err):
+		ctx.RenderWithErr(ctx.Tr("form.visit_rate_limit"), tpl, form)
+	case migrations.IsTwoFactorAuthError(err):
+		ctx.RenderWithErr(ctx.Tr("form.2fa_auth_required"), tpl, form)
+	case models.IsErrReachLimitOfRepo(err):
+		ctx.RenderWithErr(ctx.Tr("repo.form.reach_limit_of_creation", owner.MaxCreationLimit()), tpl, form)
+	case models.IsErrRepoAlreadyExist(err):
+		ctx.Data["Err_RepoName"] = true
+		ctx.RenderWithErr(ctx.Tr("form.repo_name_been_taken"), tpl, form)
+	case models.IsErrNameReserved(err):
+		ctx.Data["Err_RepoName"] = true
+		ctx.RenderWithErr(ctx.Tr("repo.form.name_reserved", err.(models.ErrNameReserved).Name), tpl, form)
+	case models.IsErrNamePatternNotAllowed(err):
+		ctx.Data["Err_RepoName"] = true
+		ctx.RenderWithErr(ctx.Tr("repo.form.name_pattern_not_allowed", err.(models.ErrNamePatternNotAllowed).Pattern), tpl, form)
+	default:
+		remoteAddr, _ := form.ParseRemoteAddr(owner)
+		err = util.URLSanitizedError(err, remoteAddr)
+		if strings.Contains(err.Error(), "Authentication failed") ||
+			strings.Contains(err.Error(), "Bad credentials") ||
+			strings.Contains(err.Error(), "could not read Username") {
+			ctx.Data["Err_Auth"] = true
+			ctx.RenderWithErr(ctx.Tr("form.auth_failed", err.Error()), tpl, form)
+		} else if strings.Contains(err.Error(), "fatal:") {
+			ctx.Data["Err_CloneAddr"] = true
+			ctx.RenderWithErr(ctx.Tr("repo.migrate.failed", err.Error()), tpl, form)
+		} else {
+			ctx.ServerError(name, err)
+		}
+	}
+}
+
+// MigratePost response for migrating from external git repository
+func MigratePost(ctx *context.Context, form auth.MigrateRepoForm) {
+	ctx.Data["Title"] = ctx.Tr("new_migrate")
+	// Plain git should be first
+	ctx.Data["service"] = form.Service
+	ctx.Data["Services"] = append([]structs.GitServiceType{structs.PlainGitService}, structs.SupportedFullGitService...)
+
+	ctxUser := checkContextUser(ctx, form.UID)
+	if ctx.Written() {
+		return
+	}
+	ctx.Data["ContextUser"] = ctxUser
+
+	if ctx.HasError() {
+		ctx.HTML(200, tplMigrate)
+		return
+	}
+
+	remoteAddr, err := form.ParseRemoteAddr(ctx.User)
+	if err != nil {
+		if models.IsErrInvalidCloneAddr(err) {
+			ctx.Data["Err_CloneAddr"] = true
+			addrErr := err.(models.ErrInvalidCloneAddr)
+			switch {
+			case addrErr.IsURLError:
+				ctx.RenderWithErr(ctx.Tr("form.url_error"), tplMigrate, &form)
+			case addrErr.IsPermissionDenied:
+				ctx.RenderWithErr(ctx.Tr("repo.migrate.permission_denied"), tplMigrate, &form)
+			case addrErr.IsInvalidPath:
+				ctx.RenderWithErr(ctx.Tr("repo.migrate.invalid_local_path"), tplMigrate, &form)
+			default:
+				ctx.ServerError("Unknown error", err)
+			}
+		} else {
+			ctx.ServerError("ParseRemoteAddr", err)
+		}
+		return
+	}
+
+	var opts = migrations.MigrateOptions{
+		OriginalURL:    form.CloneAddr,
+		GitServiceType: structs.GitServiceType(form.Service),
+		CloneAddr:      remoteAddr,
+		RepoName:       form.RepoName,
+		Description:    form.Description,
+		Private:        form.Private || setting.Repository.ForcePrivate,
+		Mirror:         form.Mirror && !setting.Repository.DisableMirrors,
+		AuthUsername:   form.AuthUsername,
+		AuthPassword:   form.AuthPassword,
+		AuthToken:      form.AuthToken,
+		Wiki:           form.Wiki,
+		Issues:         form.Issues,
+		Milestones:     form.Milestones,
+		Labels:         form.Labels,
+		Comments:       form.Issues || form.PullRequests,
+		PullRequests:   form.PullRequests,
+		Releases:       form.Releases,
+	}
+	if opts.Mirror {
+		opts.Issues = false
+		opts.Milestones = false
+		opts.Labels = false
+		opts.Comments = false
+		opts.PullRequests = false
+		opts.Releases = false
+	}
+
+	err = models.CheckCreateRepository(ctx.User, ctxUser, opts.RepoName)
+	if err != nil {
+		handleMigrateError(ctx, ctxUser, err, "MigratePost", tplMigrate, &form)
+		return
+	}
+
+	err = task.MigrateRepository(ctx.User, ctxUser, opts)
+	if err == nil {
+		ctx.Redirect(setting.AppSubURL + "/" + ctxUser.Name + "/" + opts.RepoName)
+		return
+	}
+
+	handleMigrateError(ctx, ctxUser, err, "MigratePost", tplMigrate, &form)
+}