96 lines
4.2 KiB
Go
96 lines
4.2 KiB
Go
// Package cmd provides the ntfy CLI application
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package cmd
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import (
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"errors"
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"fmt"
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"github.com/urfave/cli/v2"
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"github.com/urfave/cli/v2/altsrc"
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"heckel.io/ntfy/config"
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"heckel.io/ntfy/server"
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"heckel.io/ntfy/util"
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"log"
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"os"
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"time"
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)
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// New creates a new CLI application
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func New() *cli.App {
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flags := []cli.Flag{
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&cli.StringFlag{Name: "config", Aliases: []string{"c"}, EnvVars: []string{"NTFY_CONFIG_FILE"}, Value: "/etc/ntfy/config.yml", DefaultText: "/etc/ntfy/config.yml", Usage: "config file"},
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altsrc.NewStringFlag(&cli.StringFlag{Name: "listen-http", Aliases: []string{"l"}, EnvVars: []string{"NTFY_LISTEN_HTTP"}, Value: config.DefaultListenHTTP, Usage: "ip:port used to as listen address"}),
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altsrc.NewStringFlag(&cli.StringFlag{Name: "firebase-key-file", Aliases: []string{"F"}, EnvVars: []string{"NTFY_FIREBASE_KEY_FILE"}, Usage: "Firebase credentials file; if set additionally publish to FCM topic"}),
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altsrc.NewDurationFlag(&cli.DurationFlag{Name: "message-buffer-duration", Aliases: []string{"b"}, EnvVars: []string{"NTFY_MESSAGE_BUFFER_DURATION"}, Value: config.DefaultMessageBufferDuration, Usage: "buffer messages in memory for this time to allow `since` requests"}),
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altsrc.NewDurationFlag(&cli.DurationFlag{Name: "keepalive-interval", Aliases: []string{"k"}, EnvVars: []string{"NTFY_KEEPALIVE_INTERVAL"}, Value: config.DefaultKeepaliveInterval, Usage: "default interval of keepalive messages"}),
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altsrc.NewDurationFlag(&cli.DurationFlag{Name: "manager-interval", Aliases: []string{"m"}, EnvVars: []string{"NTFY_MANAGER_INTERVAL"}, Value: config.DefaultManagerInterval, Usage: "default interval of for message pruning and stats printing"}),
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}
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return &cli.App{
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Name: "ntfy",
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Usage: "Simple pub-sub notification service",
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UsageText: "ntfy [OPTION..]",
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HideHelp: true,
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HideVersion: true,
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EnableBashCompletion: true,
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UseShortOptionHandling: true,
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Reader: os.Stdin,
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Writer: os.Stdout,
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ErrWriter: os.Stderr,
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Action: execRun,
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Before: initConfigFileInputSource("config", flags),
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Flags: flags,
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}
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}
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func execRun(c *cli.Context) error {
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// Read all the options
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listenHTTP := c.String("listen-http")
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firebaseKeyFile := c.String("firebase-key-file")
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messageBufferDuration := c.Duration("message-buffer-duration")
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keepaliveInterval := c.Duration("keepalive-interval")
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managerInterval := c.Duration("manager-interval")
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// Check values
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if firebaseKeyFile != "" && !util.FileExists(firebaseKeyFile) {
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return errors.New("if set, FCM key file must exist")
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} else if keepaliveInterval < 5*time.Second {
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return errors.New("keepalive interval cannot be lower than five seconds")
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} else if managerInterval < 5*time.Second {
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return errors.New("manager interval cannot be lower than five seconds")
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} else if messageBufferDuration < managerInterval {
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return errors.New("message buffer duration cannot be lower than manager interval")
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}
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// Run server
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conf := config.New(listenHTTP)
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conf.FirebaseKeyFile = firebaseKeyFile
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conf.MessageBufferDuration = messageBufferDuration
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conf.KeepaliveInterval = keepaliveInterval
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conf.ManagerInterval = managerInterval
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s, err := server.New(conf)
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if err != nil {
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log.Fatalln(err)
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}
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if err := s.Run(); err != nil {
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log.Fatalln(err)
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}
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log.Printf("Exiting.")
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return nil
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}
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// initConfigFileInputSource is like altsrc.InitInputSourceWithContext and altsrc.NewYamlSourceFromFlagFunc, but checks
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// if the config flag is exists and only loads it if it does. If the flag is set and the file exists, it fails.
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func initConfigFileInputSource(configFlag string, flags []cli.Flag) cli.BeforeFunc {
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return func(context *cli.Context) error {
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configFile := context.String(configFlag)
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if context.IsSet(configFlag) && !util.FileExists(configFile) {
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return fmt.Errorf("config file %s does not exist", configFile)
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} else if !context.IsSet(configFlag) && !util.FileExists(configFile) {
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return nil
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}
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inputSource, err := altsrc.NewYamlSourceFromFile(configFile)
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if err != nil {
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return err
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}
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return altsrc.ApplyInputSourceValues(context, inputSource, flags)
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}
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}
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