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helper.go
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helper.go
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/*
Nging is a toolbox for webmasters
Copyright (C) 2018-present Wenhui Shen <swh@admpub.com>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published
by the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
package backend
import (
"path/filepath"
"sync"
"time"
"github.com/webx-top/echo/handler/captcha"
"github.com/webx-top/echo/middleware/render"
"github.com/admpub/nging/v4/application/handler"
"github.com/admpub/nging/v4/application/library/common"
"github.com/admpub/nging/v4/application/library/config"
"github.com/admpub/nging/v4/application/middleware"
)
func Initialize() {
handler.Use(BackendURLFuncMW(), middleware.FuncMap(), middleware.BackendFuncMap(), render.Auto())
handler.Use(middleware.Middlewares...)
addRouter()
DefaultConfigWatcher(true)
}
var onConfigChange = []func(file string) error{}
func OnConfigChange(fn func(file string) error) {
onConfigChange = append(onConfigChange, fn)
}
func FireConfigChange(file string) error {
for _, fn := range onConfigChange {
if err := fn(file); err != nil {
return err
}
}
return common.ErrIgnoreConfigChange
}
var lockConfigChg = sync.Mutex{}
func DefaultConfigWatcher(mustOk bool) {
if config.FromCLI().Type != `manager` {
return
}
conf := filepath.Base(config.FromCLI().Conf)
config.WatchConfig(func(file string) error {
lockConfigChg.Lock()
defer lockConfigChg.Unlock()
name := filepath.Base(file)
switch name {
case conf:
time.Sleep(time.Second)
err := common.OnErrorRetry(config.ParseConfig, 3, time.Second)
if err != nil {
if mustOk && config.IsInstalled() {
config.MustOK(err)
}
}
return err
default:
if !config.IsInstalled() {
return nil
}
filePath := filepath.ToSlash(file)
time.Sleep(time.Second)
return FireConfigChange(filePath)
}
})
}
func addRouter() {
opt := captcha.Options{EnableImage: true}
opt.Wrapper(handler.IRegister().Echo())
handler.UseToGroup(`*`, middleware.AuthCheck) //应用中间件到所有子组
handler.Apply()
}