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package main
import (
"context"
"fmt"
"net"
"net/url"
"os"
"os/signal"
"slices"
"strconv"
"strings"
"go.alanpearce.eu/website/internal/config"
"go.alanpearce.eu/website/internal/server"
"go.alanpearce.eu/website/internal/website"
"go.alanpearce.eu/x/log"
"github.com/ardanlabs/conf/v3"
"gitlab.com/tozd/go/errors"
)
type Options struct {
Development bool `conf:"default:false,flag:dev"`
DBPath string `conf:"default:site.db"`
Redirect bool `conf:"default:true"`
Port int `conf:"default:8080,short:p"`
TLS bool `conf:"default:false"`
TLSPort int `conf:"default:8443"`
ListenAddress string `conf:"default:localhost"`
Domains string `conf:"default:localhost"`
ACMEIssuer string
ACMEIssuerCert string
}
func main() {
options := &Options{}
help, err := conf.Parse("", options)
if err != nil {
if errors.Is(err, conf.ErrHelpWanted) {
fmt.Println(help)
os.Exit(1)
}
panic("parsing runtime configuration" + err.Error())
}
log := log.Configure(!options.Development)
cfg, err := config.GetConfig(".", log.Named("config"))
if err != nil {
log.Error("error reading configuration file", "error", err)
}
// Domains?
webOpts := &website.Options{
DBPath: options.DBPath,
Redirect: options.Redirect,
Development: options.Development,
Config: cfg,
}
serverOpts := &server.Options{
Development: options.Development,
ListenAddress: options.ListenAddress,
Port: options.Port,
TLS: options.TLS,
TLSPort: options.TLSPort,
ACMEIssuer: options.ACMEIssuer,
ACMEIssuerCert: options.ACMEIssuerCert,
Config: cfg,
}
if options.Development {
webOpts.DBPath = ":memory:"
cfg.CSP.ScriptSrc = slices.Insert(cfg.CSP.ScriptSrc, 0, "'unsafe-inline'")
cfg.CSP.ConnectSrc = slices.Insert(cfg.CSP.ConnectSrc, 0, "'self'")
if options.Domains != "" {
cfg.Domains = strings.Split(options.Domains, ",")
} else {
cfg.Domains = []string{options.ListenAddress}
}
cfg.BaseURL = mkBaseURL(options, cfg)
}
sv, err := server.New(serverOpts, log.Named("server"))
if err != nil {
log.Error("could not create server", "error", err)
return
}
website, err := website.New(webOpts, log.Named("website"))
if err != nil {
log.Error("could not initialise website", "error", err)
return
}
sv.HostApp(website.App)
if options.Redirect {
sv.HostFallbackApp(website.MakeRedirectorApp())
}
ctx, cancel := signal.NotifyContext(context.Background(), os.Interrupt)
defer cancel()
go func() {
err = sv.Start()
if err != nil {
// Error starting or closing listener:
log.Fatal("error starting server", err)
}
}()
<-ctx.Done()
log.Debug("calling stop")
<-sv.Stop()
log.Debug("done")
}
func mkBaseURL(options *Options, cfg *config.Config) config.URL {
scheme := "http"
port := options.Port
if options.TLS {
scheme = "https"
port = options.TLSPort
}
return config.URL{
URL: &url.URL{
Scheme: scheme,
Host: net.JoinHostPort(cfg.Domains[0], strconv.Itoa(port)),
},
}
}
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