mirror of
https://github.com/caddyserver/caddy.git
synced 2024-11-25 17:56:34 +08:00
99 lines
2.4 KiB
Go
99 lines
2.4 KiB
Go
// Copyright 2015 Light Code Labs, LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package startupshutdown
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import (
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"fmt"
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"strings"
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"github.com/google/uuid"
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"github.com/mholt/caddy"
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"github.com/mholt/caddy/onevent/hook"
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)
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func init() {
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caddy.RegisterPlugin("startup", caddy.Plugin{Action: Startup})
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caddy.RegisterPlugin("shutdown", caddy.Plugin{Action: Shutdown})
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}
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// Startup (an alias for 'on startup') registers a startup callback to execute during server start.
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func Startup(c *caddy.Controller) error {
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config, err := onParse(c, caddy.InstanceStartupEvent)
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if err != nil {
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return c.ArgErr()
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}
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// Register Event Hooks.
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c.OncePerServerBlock(func() error {
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for _, cfg := range config {
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caddy.RegisterEventHook("on-"+cfg.ID, cfg.Hook)
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}
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return nil
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})
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fmt.Println("NOTICE: Startup directive will be removed in a later version. Please migrate to 'on startup'")
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return nil
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}
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// Shutdown (an alias for 'on shutdown') registers a shutdown callback to execute during server start.
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func Shutdown(c *caddy.Controller) error {
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config, err := onParse(c, caddy.ShutdownEvent)
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if err != nil {
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return c.ArgErr()
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}
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// Register Event Hooks.
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for _, cfg := range config {
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caddy.RegisterEventHook("on-"+cfg.ID, cfg.Hook)
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}
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fmt.Println("NOTICE: Shutdown directive will be removed in a later version. Please migrate to 'on shutdown'")
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return nil
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}
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func onParse(c *caddy.Controller, event caddy.EventName) ([]*hook.Config, error) {
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var config []*hook.Config
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for c.Next() {
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cfg := new(hook.Config)
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args := c.RemainingArgs()
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if len(args) == 0 {
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return config, c.ArgErr()
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}
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// Configure Event.
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cfg.Event = event
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// Assign an unique ID.
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cfg.ID = uuid.New().String()
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// Extract command and arguments.
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command, args, err := caddy.SplitCommandAndArgs(strings.Join(args, " "))
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if err != nil {
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return config, c.Err(err.Error())
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}
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cfg.Command = command
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cfg.Args = args
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config = append(config, cfg)
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}
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return config, nil
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}
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