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package main
import (
"context"
"flag"
"fmt"
"os"
"os/signal"
"syscall"
"time"
"git.sr.ht/~emersion/alps"
"github.com/fernet/fernet-go"
"github.com/labstack/echo/v4"
"github.com/labstack/echo/v4/middleware"
"github.com/labstack/gommon/log"
_ "git.sr.ht/~emersion/alps/plugins/base"
_ "git.sr.ht/~emersion/alps/plugins/caldav"
_ "git.sr.ht/~emersion/alps/plugins/carddav"
_ "git.sr.ht/~emersion/alps/plugins/lua"
_ "git.sr.ht/~emersion/alps/plugins/viewhtml"
_ "git.sr.ht/~emersion/alps/plugins/viewtext"
)
func main() {
var (
addr string
loginKey string
options alps.Options
)
flag.StringVar(&options.Theme, "theme", "", "default theme")
flag.StringVar(&addr, "addr", ":1323", "listening address")
flag.BoolVar(&options.Debug, "debug", false, "enable debug logs")
flag.StringVar(&loginKey, "login-key", "", "Fernet key for login persistence")
flag.Usage = func() {
fmt.Fprintf(flag.CommandLine.Output(), "usage: alps [options...] <upstream servers...>\n")
flag.PrintDefaults()
}
flag.Parse()
options.Upstreams = flag.Args()
if len(options.Upstreams) == 0 {
flag.Usage()
return
}
if loginKey != "" {
fernetKey, err := fernet.DecodeKey(loginKey)
if err != nil {
flag.Usage()
return
}
options.LoginKey = fernetKey
}
e := echo.New()
e.HideBanner = true
if l, ok := e.Logger.(*log.Logger); ok {
l.SetHeader("${time_rfc3339} ${level}")
}
s, err := alps.New(e, &options)
if err != nil {
e.Logger.Fatal(err)
}
e.Use(middleware.Recover())
if options.Debug {
e.Use(middleware.LoggerWithConfig(middleware.LoggerConfig{
Format: "${time_rfc3339} method=${method}, uri=${uri}, status=${status}\n",
}))
}
if options.Debug {
e.Logger.SetLevel(log.DEBUG)
}
go e.Start(addr)
s.Queue.Start(context.Background())
sigs := make(chan os.Signal, 1)
signal.Notify(sigs, syscall.SIGUSR1, syscall.SIGINT)
for sig := range sigs {
if sig == syscall.SIGUSR1 {
if err := s.Reload(); err != nil {
e.Logger.Errorf("Failed to reload server: %v", err)
}
} else if sig == syscall.SIGINT {
break
}
}
ctx, cancel := context.WithDeadline(context.Background(),
time.Now().Add(30*time.Second))
e.Shutdown(ctx)
cancel()
e.Logger.Print("Waiting for work queues to finish...")
s.Queue.Shutdown()
e.Logger.Print("Shut down.")
}
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