read configuration file

config.toml

@@ -1,3 +1,5 @@
+Port = 11025
+
 [[Recipients]]
 Addresses = ["something@something.com"]
 Target = "ntfy://ntfy.sh/fmartingr-dev"

main.go

@@ -8,10 +8,12 @@ import (
 	"log/slog"
 	"net/mail"
 	"net/url"
+	"os"
 	"slices"
 	"strings"
 	"time"
 
+	"git.nakama.town/fmartingr/gotoolkit/encoding"
 	"git.nakama.town/fmartingr/gotoolkit/model"
 	"git.nakama.town/fmartingr/gotoolkit/service"
 	"github.com/containrrr/shoutrrr"
@@ -44,21 +46,28 @@ func (re *ReceivedEmail) Body() string {
 }
 
 type Config struct {
+	Port       int
 	Recipients []ConfigRecipient
 }
 
+func (c *Config) SetDefaults() {
+	if c.Port == 0 {
+		c.Port = 11125
+	}
+}
+
 type ConfigRecipient struct {
 	Addresses []string // email addresses
-	target    string   // shoutrrr address
+	Target    string   // shoutrrr address
 	targetURL *url.URL
 }
 
-func (cr ConfigRecipient) Target() *url.URL {
+func (cr ConfigRecipient) GetTargetURL() *url.URL {
 	if cr.targetURL == nil {
 		var err error
-		cr.targetURL, err = url.Parse(cr.target)
+		cr.targetURL, err = url.Parse(cr.Target)
 		if err != nil {
-			slog.Error("failed to parse shoutrrr target URL", slog.String("target", cr.target), slog.String("err", err.Error()))
+			slog.Error("failed to parse shoutrrr target URL", slog.String("target", cr.Target), slog.String("err", err.Error()))
 		}
 	}
 	return cr.targetURL
@@ -85,9 +94,22 @@ func (s *smtpServer) Stop(ctx context.Context) error {
 	return s.backend.Shutdown(ctx)
 }
 
-func NewSMTPServer(backend *smtp.Server) model.Server {
+func NewSMTPServer(config *Config) model.Server {
+	be := &Backend{
+		config: config,
+	}
+
+	smtpBackend := smtp.NewServer(be)
+	smtpBackend.Addr = fmt.Sprintf(":%d", config.Port)
+	// smtpBackend.Domain = "localhost"
+	smtpBackend.WriteTimeout = 10 * time.Second
+	smtpBackend.ReadTimeout = 10 * time.Second
+	smtpBackend.MaxMessageBytes = 1024 * 1024
+	smtpBackend.MaxRecipients = 50
+	smtpBackend.AllowInsecureAuth = true
+
 	return &smtpServer{
-		backend: backend,
+		backend: smtpBackend,
 	}
 }
 
@@ -104,7 +126,7 @@ func (bkd *Backend) NewSession(c *smtp.Conn) (smtp.Session, error) {
 }
 
 func (bkd *Backend) forwardEmail(email ReceivedEmail) error {
-	slog.Info("forwading message", slog.String("email", email.String()))
+	slog.Info("forwading message", slog.String("to", strings.Join(email.Recipients, ",")))
 
 	for _, r := range bkd.config.Recipients {
 		for _, a := range email.Recipients {
@@ -113,7 +135,7 @@ func (bkd *Backend) forwardEmail(email ReceivedEmail) error {
 					"title": {email.Msg.Header.Get("Subject")},
 				}
 
-				destinationURL := r.Target()
+				destinationURL := r.GetTargetURL()
 				destinationURL.RawQuery = urlParams.Encode()
 
 				if err := shoutrrr.Send(destinationURL.String(), email.Body()); err != nil {
@@ -191,32 +213,27 @@ func (s *Session) Logout() error {
 }
 
 func main() {
-	config := &Config{
+	var config *Config
-		Recipients: []ConfigRecipient{{
+	configPath := "config.toml"
-			Addresses: []string{"test@fmartingr.com", "caca@caca.com"},
+
-			target:    "ntfy://ntfy.sh/fmartingr-dev",
+	f, err := os.Open(configPath)
-		}, {
+	if err != nil {
-			Addresses: []string{"something@something.com"},
+		slog.Error("Error opening config file", slog.String("err", err.Error()), slog.String("path", configPath))
-			target:    "ntfy://ntfy.sh/fmartingr-dev",
+		return
-		}},
 	}
 
-	be := &Backend{
+	enc := encoding.NewTOMLEncoding()
-		config: config,
+	if err := enc.DecodeReader(f, &config); err != nil {
+		slog.Error("Error decoding config file", slog.String("err", err.Error()), slog.String("path", configPath))
+		return
 	}
 
-	smtpBackend := smtp.NewServer(be)
+	config.SetDefaults()
 
-	smtpBackend.Addr = "localhost:11025"
+	slog.Info("config loaded", slog.Int("recipients", len(config.Recipients)))
-	smtpBackend.Domain = "localhost"
-	smtpBackend.WriteTimeout = 10 * time.Second
-	smtpBackend.ReadTimeout = 10 * time.Second
-	smtpBackend.MaxMessageBytes = 1024 * 1024
-	smtpBackend.MaxRecipients = 50
-	smtpBackend.AllowInsecureAuth = true
 
 	ctx := context.Background()
-	smtpServer := NewSMTPServer(smtpBackend)
+	smtpServer := NewSMTPServer(config)
 
 	svc, err := service.NewService([]model.Server{
 		smtpServer,