// GlobalInit is for global configuration reload-able.
func GlobalInit() {
	setting.NewConfigContext()
	log.Trace("Custom path: %s", setting.CustomPath)
	log.Trace("Log path: %s", setting.LogRootPath)
	mailer.NewMailerContext()
	models.LoadModelsConfig()
	NewServices()

	if setting.InstallLock {
		models.LoadRepoConfig()
		models.NewRepoContext()

		if err := models.NewEngine(); err != nil {
			log.Fatal(4, "Fail to initialize ORM engine: %v", err)
		}

		models.HasEngine = true
		cron.NewCronContext()
		models.InitDeliverHooks()
		log.NewGitLogger(path.Join(setting.LogRootPath, "http.log"))
	}
	if models.EnableSQLite3 {
		log.Info("SQLite3 Supported")
	}
	checkRunMode()
}

func SettingsPost(ctx *middleware.Context, form auth.UpdateOrgSettingForm) {
	ctx.Data["Title"] = ctx.Tr("org.settings")
	ctx.Data["PageIsSettingsOptions"] = true

	if ctx.HasError() {
		ctx.HTML(200, SETTINGS_OPTIONS)
		return
	}

	org := ctx.Org.Organization

	// Check if organization name has been changed.
	if org.Name != form.OrgUserName {
		isExist, err := models.IsUserExist(org.Id, form.OrgUserName)
		if err != nil {
			ctx.Handle(500, "IsUserExist", err)
			return
		} else if isExist {
			ctx.Data["Err_UserName"] = true
			ctx.RenderWithErr(ctx.Tr("form.username_been_taken"), SETTINGS_OPTIONS, &form)
			return
		} else if err = models.ChangeUserName(org, form.OrgUserName); err != nil {
			if err == models.ErrUserNameIllegal {
				ctx.Data["Err_UserName"] = true
				ctx.RenderWithErr(ctx.Tr("form.illegal_username"), SETTINGS_OPTIONS, &form)
			} else {
				ctx.Handle(500, "ChangeUserName", err)
			}
			return
		}
		log.Trace("Organization name changed: %s -> %s", org.Name, form.OrgUserName)
		org.Name = form.OrgUserName
	}

	org.FullName = form.OrgFullName
	org.Email = form.Email
	org.Description = form.Description
	org.Website = form.Website
	org.Location = form.Location
	org.Avatar = base.EncodeMd5(form.Avatar)
	org.AvatarEmail = form.Avatar
	if err := models.UpdateUser(org); err != nil {
		if models.IsErrEmailAlreadyUsed(err) {
			ctx.Data["Err_Email"] = true
			ctx.RenderWithErr(ctx.Tr("form.email_been_used"), SETTINGS_OPTIONS, &form)
		} else {
			ctx.Handle(500, "UpdateUser", err)
		}
		return
	}
	log.Trace("Organization setting updated: %s", org.Name)
	ctx.Flash.Success(ctx.Tr("org.settings.update_setting_success"))
	ctx.Redirect(setting.AppSubUrl + "/org/" + org.Name + "/settings")
}

func DeleteAuthSource(ctx *middleware.Context) {
	id := com.StrTo(ctx.Params(":authid")).MustInt64()
	if id == 0 {
		ctx.Handle(404, "DeleteAuthSource", nil)
		return
	}

	a, err := models.GetLoginSourceByID(id)
	if err != nil {
		ctx.Handle(500, "GetLoginSourceById", err)
		return
	}

	if err = models.DelLoginSource(a); err != nil {
		switch err {
		case models.ErrAuthenticationUserUsed:
			ctx.Flash.Error("form.still_own_user")
			ctx.Redirect(setting.AppSubUrl + "/admin/auths/" + ctx.Params(":authid"))
		default:
			ctx.Handle(500, "DelLoginSource", err)
		}
		return
	}
	log.Trace("Authentication deleted by admin(%s): %s", ctx.User.Name, a.Name)
	ctx.Redirect(setting.AppSubUrl + "/admin/auths")
}

func SettingsPasswordPost(ctx *middleware.Context, form auth.ChangePasswordForm) {
	ctx.Data["Title"] = ctx.Tr("settings")
	ctx.Data["PageIsSettingsPassword"] = true

	if ctx.HasError() {
		ctx.HTML(200, SETTINGS_PASSWORD)
		return
	}

	tmpUser := &models.User{
		Passwd: form.OldPassword,
		Salt:   ctx.User.Salt,
	}
	tmpUser.EncodePasswd()
	if ctx.User.Passwd != tmpUser.Passwd {
		ctx.Flash.Error(ctx.Tr("settings.password_incorrect"))
	} else if form.Password != form.Retype {
		ctx.Flash.Error(ctx.Tr("form.password_not_match"))
	} else {
		ctx.User.Passwd = form.Password
		ctx.User.Salt = models.GetUserSalt()
		ctx.User.EncodePasswd()
		if err := models.UpdateUser(ctx.User); err != nil {
			ctx.Handle(500, "UpdateUser", err)
			return
		}
		log.Trace("User password updated: %s", ctx.User.Name)
		ctx.Flash.Success(ctx.Tr("settings.change_password_success"))
	}

	ctx.Redirect(setting.AppSubUrl + "/user/settings/password")
}

func DeleteUser(ctx *middleware.Context) {
	uid := com.StrTo(ctx.Params(":userid")).MustInt64()
	if uid == 0 {
		ctx.Handle(404, "DeleteUser", nil)
		return
	}

	u, err := models.GetUserByID(uid)
	if err != nil {
		ctx.Handle(500, "GetUserByID", err)
		return
	}

	if err = models.DeleteUser(u); err != nil {
		switch {
		case models.IsErrUserOwnRepos(err):
			ctx.Flash.Error(ctx.Tr("admin.users.still_own_repo"))
			ctx.Redirect(setting.AppSubUrl + "/admin/users/" + ctx.Params(":userid"))
		case models.IsErrUserHasOrgs(err):
			ctx.Flash.Error(ctx.Tr("admin.users.still_has_org"))
			ctx.Redirect(setting.AppSubUrl + "/admin/users/" + ctx.Params(":userid"))
		default:
			ctx.Handle(500, "DeleteUser", err)
		}
		return
	}
	log.Trace("Account deleted by admin(%s): %s", ctx.User.Name, u.Name)
	ctx.Redirect(setting.AppSubUrl + "/admin/users")
}

func transferRepoAction(e Engine, actUser, oldOwner, newOwner *User, repo *Repository) (err error) {
	if err = notifyWatchers(e, &Action{
		ActUserID:    actUser.Id,
		ActUserName:  actUser.Name,
		ActEmail:     actUser.Email,
		OpType:       TRANSFER_REPO,
		RepoID:       repo.ID,
		RepoUserName: newOwner.Name,
		RepoName:     repo.Name,
		IsPrivate:    repo.IsPrivate,
		Content:      path.Join(oldOwner.LowerName, repo.LowerName),
	}); err != nil {
		return fmt.Errorf("notify watchers '%d/%s': %v", actUser.Id, repo.ID, err)
	}

	// Remove watch for organization.
	if repo.Owner.IsOrganization() {
		if err = watchRepo(e, repo.Owner.Id, repo.ID, false); err != nil {
			return fmt.Errorf("watch repository: %v", err)
		}
	}

	log.Trace("action.transferRepoAction: %s/%s", actUser.Name, repo.Name)
	return nil
}

// GitFsck calls 'git fsck' to check repository health.
func GitFsck() {
	if isGitFscking {
		return
	}
	isGitFscking = true
	defer func() { isGitFscking = false }()

	log.Trace("Doing: GitFsck")

	args := append([]string{"fsck"}, setting.Cron.RepoHealthCheck.Args...)
	if err := x.Where("id>0").Iterate(new(Repository),
		func(idx int, bean interface{}) error {
			repo := bean.(*Repository)
			repoPath, err := repo.RepoPath()
			if err != nil {
				return fmt.Errorf("RepoPath: %v", err)
			}

			_, _, err = process.ExecDir(-1, repoPath, "Repository health check", "git", args...)
			if err != nil {
				desc := fmt.Sprintf("Fail to health check repository(%s)", repoPath)
				log.Warn(desc)
				if err = CreateRepositoryNotice(desc); err != nil {
					log.Error(4, "CreateRepositoryNotice: %v", err)
				}
			}
			return nil
		}); err != nil {
		log.Error(4, "GitFsck: %v", err)
	}
}

func Invitation(ctx *middleware.Context) {
	org := ctx.Org.Organization
	ctx.Data["Title"] = org.FullName
	ctx.Data["PageIsOrgMembers"] = true

	if ctx.Req.Method == "POST" {
		uname := ctx.Query("uname")
		u, err := models.GetUserByName(uname)
		if err != nil {
			if models.IsErrUserNotExist(err) {
				ctx.Flash.Error(ctx.Tr("form.user_not_exist"))
				ctx.Redirect(ctx.Org.OrgLink + "/invitations/new")
			} else {
				ctx.Handle(500, " GetUserByName", err)
			}
			return
		}

		if err = org.AddMember(u.Id); err != nil {
			ctx.Handle(500, " AddMember", err)
			return
		}

		log.Trace("New member added(%s): %s", org.Name, u.Name)
		ctx.Redirect(ctx.Org.OrgLink + "/members")
		return
	}

	ctx.HTML(200, MEMBER_INVITE)
}

func SettingsDelete(ctx *middleware.Context) {
	ctx.Data["Title"] = ctx.Tr("settings")
	ctx.Data["PageIsSettingsDelete"] = true

	if ctx.Req.Method == "POST" {
		if _, err := models.UserSignIn(ctx.User.Name, ctx.Query("password")); err != nil {
			if models.IsErrUserNotExist(err) {
				ctx.RenderWithErr(ctx.Tr("form.enterred_invalid_password"), SETTINGS_DELETE, nil)
			} else {
				ctx.Handle(500, "UserSignIn", err)
			}
			return
		}

		if err := models.DeleteUser(ctx.User); err != nil {
			switch {
			case models.IsErrUserOwnRepos(err):
				ctx.Flash.Error(ctx.Tr("form.still_own_repo"))
				ctx.Redirect(setting.AppSubUrl + "/user/settings/delete")
			case models.IsErrUserHasOrgs(err):
				ctx.Flash.Error(ctx.Tr("form.still_has_org"))
				ctx.Redirect(setting.AppSubUrl + "/user/settings/delete")
			default:
				ctx.Handle(500, "DeleteUser", err)
			}
		} else {
			log.Trace("Account deleted: %s", ctx.User.Name)
			ctx.Redirect(setting.AppSubUrl + "/")
		}
		return
	}

	ctx.HTML(200, SETTINGS_DELETE)
}

func (this *service) ServeHTTP(w http.ResponseWriter, r *http.Request) {
	urlPath := r.URL.Path
	hash := urlPath[strings.LastIndex(urlPath, "/")+1:]
	size := this.mustInt(r, 80, "s", "size") // default size = 80*80

	avatar := New(hash, this.cacheDir)
	avatar.AlterImage = this.altImage
	if avatar.Expired() {
		if err := avatar.UpdateTimeout(time.Millisecond * 1000); err != nil {
			log.Trace("avatar update error: %v", err)
			return
		}
	}
	if modtime, err := avatar.Modtime(); err == nil {
		etag := fmt.Sprintf("size(%d)", size)
		if t, err := time.Parse(http.TimeFormat, r.Header.Get("If-Modified-Since")); err == nil && modtime.Before(t.Add(1*time.Second)) && etag == r.Header.Get("If-None-Match") {
			h := w.Header()
			delete(h, "Content-Type")
			delete(h, "Content-Length")
			w.WriteHeader(http.StatusNotModified)
			return
		}
		w.Header().Set("Last-Modified", modtime.UTC().Format(http.TimeFormat))
		w.Header().Set("ETag", etag)
	}
	w.Header().Set("Content-Type", "image/jpeg")

	if err := avatar.Encode(w, size); err != nil {
		log.Warn("avatar encode error: %v", err)
		w.WriteHeader(500)
	}
}

func MigratePost(ctx *middleware.Context, form auth.MigrateRepoForm) {
	ctx.Data["Title"] = ctx.Tr("new_migrate")

	ctxUser := checkContextUser(ctx, form.Uid)
	if ctx.Written() {
		return
	}
	ctx.Data["ContextUser"] = ctxUser

	if ctx.HasError() {
		ctx.HTML(200, MIGRATE)
		return
	}

	// Remote address can be HTTP/HTTPS/Git URL or local path.
	// Note: remember to change api/v1/repo.go: MigrateRepo
	// FIXME: merge these two functions with better error handling
	remoteAddr := form.CloneAddr
	if strings.HasPrefix(form.CloneAddr, "http://") ||
		strings.HasPrefix(form.CloneAddr, "https://") ||
		strings.HasPrefix(form.CloneAddr, "git://") {
		u, err := url.Parse(form.CloneAddr)
		if err != nil {
			ctx.Data["Err_CloneAddr"] = true
			ctx.RenderWithErr(ctx.Tr("form.url_error"), MIGRATE, &form)
			return
		}
		if len(form.AuthUsername) > 0 || len(form.AuthPassword) > 0 {
			u.User = url.UserPassword(form.AuthUsername, form.AuthPassword)
		}
		remoteAddr = u.String()
	} else if !com.IsDir(remoteAddr) {
		ctx.Data["Err_CloneAddr"] = true
		ctx.RenderWithErr(ctx.Tr("repo.migrate.invalid_local_path"), MIGRATE, &form)
		return
	}

	repo, err := models.MigrateRepository(ctxUser, form.RepoName, form.Description, form.Private, form.Mirror, remoteAddr)
	if err == nil {
		log.Trace("Repository migrated: %s/%s", ctxUser.Name, form.RepoName)
		ctx.Redirect(setting.AppSubUrl + "/" + ctxUser.Name + "/" + form.RepoName)
		return
	}

	if repo != nil {
		if errDelete := models.DeleteRepository(ctxUser.Id, repo.ID); errDelete != nil {
			log.Error(4, "DeleteRepository: %v", errDelete)
		}
	}

	if strings.Contains(err.Error(), "Authentication failed") ||
		strings.Contains(err.Error(), " not found") {
		ctx.Data["Err_Auth"] = true
		ctx.RenderWithErr(ctx.Tr("form.auth_failed", strings.Replace(err.Error(), ":"+form.AuthPassword+"@", ":<password>@", 1)), MIGRATE, &form)
		return
	}

	handleCreateError(ctx, err, "MigratePost", MIGRATE, &form)
}

func (ls Ldapsource) FindUserDN(name string) (string, bool) {
	l, err := ldapDial(ls)
	if err != nil {
		log.Error(4, "LDAP Connect error, %s:%v", ls.Host, err)
		ls.Enabled = false
		return "", false
	}
	defer l.Close()

	log.Trace("Search for LDAP user: %s", name)
	if ls.BindDN != "" && ls.BindPassword != "" {
		err = l.Bind(ls.BindDN, ls.BindPassword)
		if err != nil {
			log.Debug("Failed to bind as BindDN[%s]: %v", ls.BindDN, err)
			return "", false
		}
		log.Trace("Bound as BindDN %s", ls.BindDN)
	} else {
		log.Trace("Proceeding with anonymous LDAP search.")
	}

	// A search for the user.
	userFilter := fmt.Sprintf(ls.Filter, name)
	log.Trace("Searching using filter %s", userFilter)
	search := ldap.NewSearchRequest(
		ls.UserBase, ldap.ScopeWholeSubtree, ldap.NeverDerefAliases, 0, 0,
		false, userFilter, []string{}, nil)

	// Ensure we found a user
	sr, err := l.Search(search)
	if err != nil || len(sr.Entries) < 1 {
		log.Debug("Failed search using filter[%s]: %v", userFilter, err)
		return "", false
	} else if len(sr.Entries) > 1 {
		log.Debug("Filter '%s' returned more than one user.", userFilter)
		return "", false
	}

	userDN := sr.Entries[0].DN
	if userDN == "" {
		log.Error(4, "LDAP search was succesful, but found no DN!")
		return "", false
	}

	return userDN, true
}

func SignInPost(ctx *middleware.Context, form auth.SignInForm) {
	ctx.Data["Title"] = ctx.Tr("sign_in")

	sid, isOauth := ctx.Session.Get("socialId").(int64)
	if isOauth {
		ctx.Data["IsSocialLogin"] = true
	} else if setting.OauthService != nil {
		ctx.Data["OauthEnabled"] = true
		ctx.Data["OauthService"] = setting.OauthService
	}

	if ctx.HasError() {
		ctx.HTML(200, SIGNIN)
		return
	}

	u, err := models.UserSignIn(form.UserName, form.Password)
	if err != nil {
		if models.IsErrUserNotExist(err) {
			ctx.RenderWithErr(ctx.Tr("form.username_password_incorrect"), SIGNIN, &form)
		} else {
			ctx.Handle(500, "UserSignIn", err)
		}
		return
	}

	if form.Remember {
		days := 86400 * setting.LogInRememberDays
		ctx.SetCookie(setting.CookieUserName, u.Name, days, setting.AppSubUrl)
		ctx.SetSuperSecureCookie(base.EncodeMd5(u.Rands+u.Passwd),
			setting.CookieRememberName, u.Name, days, setting.AppSubUrl)
	}

	// Bind with social account.
	if isOauth {
		if err = models.BindUserOauth2(u.Id, sid); err != nil {
			if err == models.ErrOauth2RecordNotExist {
				ctx.Handle(404, "GetOauth2ById", err)
			} else {
				ctx.Handle(500, "GetOauth2ById", err)
			}
			return
		}
		ctx.Session.Delete("socialId")
		log.Trace("%s OAuth binded: %s -> %d", ctx.Req.RequestURI, form.UserName, sid)
	}

	ctx.Session.Set("uid", u.Id)
	ctx.Session.Set("uname", u.Name)
	if redirectTo, _ := url.QueryUnescape(ctx.GetCookie("redirect_to")); len(redirectTo) > 0 {
		ctx.SetCookie("redirect_to", "", -1, setting.AppSubUrl)
		ctx.Redirect(redirectTo)
		return
	}

	ctx.Redirect(setting.AppSubUrl + "/")
}

func NewReleasePost(ctx *middleware.Context, form auth.NewReleaseForm) {
	if !ctx.Repo.IsOwner() {
		ctx.Handle(403, "release.ReleasesNew", nil)
		return
	}

	ctx.Data["Title"] = ctx.Tr("repo.release.new_release")
	ctx.Data["IsRepoToolbarReleases"] = true
	ctx.Data["IsRepoReleaseNew"] = true

	if ctx.HasError() {
		ctx.HTML(200, RELEASE_NEW)
		return
	}

	if !ctx.Repo.GitRepo.IsBranchExist(form.Target) {
		ctx.RenderWithErr(ctx.Tr("form.target_branch_not_exist"), RELEASE_NEW, &form)
		return
	}

	commit, err := ctx.Repo.GitRepo.GetCommitOfBranch(form.Target)
	if err != nil {
		ctx.Handle(500, "GetCommitOfBranch", err)
		return
	}

	commitsCount, err := commit.CommitsCount()
	if err != nil {
		ctx.Handle(500, "CommitsCount", err)
		return
	}

	rel := &models.Release{
		RepoId:       ctx.Repo.Repository.ID,
		PublisherId:  ctx.User.Id,
		Title:        form.Title,
		TagName:      form.TagName,
		Target:       form.Target,
		Sha1:         commit.Id.String(),
		NumCommits:   commitsCount,
		Note:         form.Content,
		IsDraft:      len(form.Draft) > 0,
		IsPrerelease: form.Prerelease,
	}

	if err = models.CreateRelease(ctx.Repo.GitRepo, rel); err != nil {
		if err == models.ErrReleaseAlreadyExist {
			ctx.RenderWithErr(ctx.Tr("repo.release.tag_name_already_exist"), RELEASE_NEW, &form)
		} else {
			ctx.Handle(500, "CreateRelease", err)
		}
		return
	}
	log.Trace("%s Release created: %s/%s:%s", ctx.Req.RequestURI, ctx.User.LowerName, ctx.Repo.Repository.Name, form.TagName)

	ctx.Redirect(ctx.Repo.RepoLink + "/releases")
}

func EditUserPost(ctx *middleware.Context, form auth.AdminEditUserForm) {
	ctx.Data["Title"] = ctx.Tr("admin.users.edit_account")
	ctx.Data["PageIsAdmin"] = true
	ctx.Data["PageIsAdminUsers"] = true

	uid := com.StrTo(ctx.Params(":userid")).MustInt64()
	if uid == 0 {
		ctx.Handle(404, "EditUser", nil)
		return
	}

	u, err := models.GetUserByID(uid)
	if err != nil {
		ctx.Handle(500, "GetUserById", err)
		return
	}
	ctx.Data["User"] = u

	if ctx.HasError() {
		ctx.HTML(200, USER_EDIT)
		return
	}

	// FIXME: need password length check
	if len(form.Password) > 0 {
		u.Passwd = form.Password
		u.Salt = models.GetUserSalt()
		u.EncodePasswd()
	}

	u.FullName = form.FullName
	u.Email = form.Email
	u.Website = form.Website
	u.Location = form.Location
	if len(form.Avatar) == 0 {
		form.Avatar = form.Email
	}
	u.Avatar = base.EncodeMd5(form.Avatar)
	u.AvatarEmail = form.Avatar
	u.IsActive = form.Active
	u.IsAdmin = form.Admin
	u.AllowGitHook = form.AllowGitHook

	if err := models.UpdateUser(u); err != nil {
		if models.IsErrEmailAlreadyUsed(err) {
			ctx.Data["Err_Email"] = true
			ctx.RenderWithErr(ctx.Tr("form.email_been_used"), USER_EDIT, &form)
		} else {
			ctx.Handle(500, "UpdateUser", err)
		}
		return
	}
	log.Trace("Account profile updated by admin(%s): %s", ctx.User.Name, u.Name)
	ctx.Flash.Success(ctx.Tr("admin.users.update_profile_success"))
	ctx.Redirect(setting.AppSubUrl + "/admin/users/" + ctx.Params(":userid"))
}

func DeleteNotice(ctx *middleware.Context) {
	id := com.StrTo(ctx.Params(":id")).MustInt64()
	if err := models.DeleteNotice(id); err != nil {
		ctx.Handle(500, "DeleteNotice", err)
		return
	}
	log.Trace("System notice deleted by admin(%s): %d", ctx.User.Name, id)
	ctx.Flash.Success(ctx.Tr("admin.notices.delete_success"))
	ctx.Redirect("/admin/notices")
}

func NewUserPost(ctx *middleware.Context, form auth.RegisterForm) {
	ctx.Data["Title"] = ctx.Tr("admin.users.new_account")
	ctx.Data["PageIsAdmin"] = true
	ctx.Data["PageIsAdminUsers"] = true

	if ctx.HasError() {
		ctx.HTML(200, USER_NEW)
		return
	}

	if form.Password != form.Retype {
		ctx.Data["Err_Password"] = true
		ctx.RenderWithErr(ctx.Tr("form.password_not_match"), USER_NEW, &form)
		return
	}

	u := &models.User{
		Name:      form.UserName,
		Email:     form.Email,
		Passwd:    form.Password,
		IsActive:  true,
		LoginType: models.PLAIN,
	}

	if len(form.LoginType) > 0 {
		// NOTE: need rewrite.
		fields := strings.Split(form.LoginType, "-")
		tp, _ := com.StrTo(fields[0]).Int()
		u.LoginType = models.LoginType(tp)
		u.LoginSource, _ = com.StrTo(fields[1]).Int64()
		u.LoginName = form.LoginName
	}

	if err := models.CreateUser(u); err != nil {
		switch {
		case models.IsErrUserAlreadyExist(err):
			ctx.Data["Err_UserName"] = true
			ctx.RenderWithErr(ctx.Tr("form.username_been_taken"), USER_NEW, &form)
		case models.IsErrEmailAlreadyUsed(err):
			ctx.Data["Err_Email"] = true
			ctx.RenderWithErr(ctx.Tr("form.email_been_used"), USER_NEW, &form)
		case models.IsErrNameReserved(err):
			ctx.Data["Err_UserName"] = true
			ctx.RenderWithErr(ctx.Tr("user.form.name_reserved", err.(models.ErrNameReserved).Name), USER_NEW, &form)
		case models.IsErrNamePatternNotAllowed(err):
			ctx.Data["Err_UserName"] = true
			ctx.RenderWithErr(ctx.Tr("user.form.name_pattern_not_allowed", err.(models.ErrNamePatternNotAllowed).Pattern), USER_NEW, &form)
		default:
			ctx.Handle(500, "CreateUser", err)
		}
		return
	}
	log.Trace("Account created by admin(%s): %s", ctx.User.Name, u.Name)
	ctx.Redirect(setting.AppSubUrl + "/admin/users")
}

func ForkPost(ctx *middleware.Context, form auth.CreateRepoForm) {
	ctx.Data["Title"] = ctx.Tr("new_fork")

	forkRepo := getForkRepository(ctx)
	if ctx.Written() {
		return
	}

	ctxUser := checkContextUser(ctx, form.Uid)
	if ctx.Written() {
		return
	}
	ctx.Data["ContextUser"] = ctxUser

	if ctx.HasError() {
		ctx.HTML(200, FORK)
		return
	}

	repo, has := models.HasForkedRepo(ctxUser.Id, forkRepo.ID)
	if has {
		ctx.Redirect(setting.AppSubUrl + "/" + ctxUser.Name + "/" + repo.Name)
		return
	}

	// Check ownership of organization.
	if ctxUser.IsOrganization() {
		if !ctxUser.IsOwnedBy(ctx.User.Id) {
			ctx.Error(403)
			return
		}
	}

	repo, err := models.ForkRepository(ctxUser, forkRepo, form.RepoName, form.Description)
	if err != nil {
		ctx.Data["Err_RepoName"] = true
		switch {
		case models.IsErrRepoAlreadyExist(err):
			ctx.RenderWithErr(ctx.Tr("repo.settings.new_owner_has_same_repo"), FORK, &form)
		case models.IsErrNameReserved(err):
			ctx.RenderWithErr(ctx.Tr("repo.form.name_reserved", err.(models.ErrNameReserved).Name), FORK, &form)
		case models.IsErrNamePatternNotAllowed(err):
			ctx.RenderWithErr(ctx.Tr("repo.form.name_pattern_not_allowed", err.(models.ErrNamePatternNotAllowed).Pattern), FORK, &form)
		default:
			ctx.Handle(500, "ForkPost", err)
		}
		return
	}

	log.Trace("Repository forked[%d]: %s/%s", forkRepo.ID, ctxUser.Name, repo.Name)
	ctx.Redirect(setting.AppSubUrl + "/" + ctxUser.Name + "/" + repo.Name)
}

func Activate(ctx *middleware.Context) {
	code := ctx.Query("code")
	if len(code) == 0 {
		ctx.Data["IsActivatePage"] = true
		if ctx.User.IsActive {
			ctx.Error(404)
			return
		}
		// Resend confirmation e-mail.
		if setting.Service.RegisterEmailConfirm {
			if ctx.Cache.IsExist("MailResendLimit_" + ctx.User.LowerName) {
				ctx.Data["ResendLimited"] = true
			} else {
				ctx.Data["Hours"] = setting.Service.ActiveCodeLives / 60
				mailer.SendActiveMail(ctx.Render, ctx.User)

				if err := ctx.Cache.Put("MailResendLimit_"+ctx.User.LowerName, ctx.User.LowerName, 180); err != nil {
					log.Error(4, "Set cache(MailResendLimit) fail: %v", err)
				}
			}
		} else {
			ctx.Data["ServiceNotEnabled"] = true
		}
		ctx.HTML(200, ACTIVATE)
		return
	}

	// Verify code.
	if user := models.VerifyUserActiveCode(code); user != nil {
		user.IsActive = true
		user.Rands = models.GetUserSalt()
		if err := models.UpdateUser(user); err != nil {
			if models.IsErrUserNotExist(err) {
				ctx.Error(404)
			} else {
				ctx.Handle(500, "UpdateUser", err)
			}
			return
		}

		log.Trace("User activated: %s", user.Name)

		ctx.Session.Set("uid", user.Id)
		ctx.Session.Set("uname", user.Name)
		ctx.Redirect(setting.AppSubUrl + "/")
		return
	}

	ctx.Data["IsActivateFailed"] = true
	ctx.HTML(200, ACTIVATE)
}

// Direct Send mail message
func Send(msg *Message) (int, error) {
	log.Trace("Sending mails to: %s", strings.Join(msg.To, "; "))

	// get message body
	content := msg.Content()

	if len(msg.To) == 0 {
		return 0, fmt.Errorf("empty receive emails")
	} else if len(msg.Body) == 0 {
		return 0, fmt.Errorf("empty email body")
	}

	if msg.Massive {
		// send mail to multiple emails one by one
		num := 0
		for _, to := range msg.To {
			body := []byte("To: " + to + "\r\n" + content)
			err := sendMail(setting.MailService, []string{to}, body)
			if err != nil {
				return num, err
			}
			num++
		}
		return num, nil
	} else {
		body := []byte("To: " + strings.Join(msg.To, ";") + "\r\n" + content)

		log.Trace("PEC DBG mail body: %s", body)

		// send to multiple emails in one message
		err := sendMail(setting.MailService, msg.To, body)
		if err != nil {
			return 0, err
		} else {
			return 1, nil
		}
	}
}