Merge branch 'develop' into dist/ubuntu/bionic/develop

Makefile

@@ -1,3 +1,5 @@
+DOCKER_DATE_TAG := $(shell date +%Y%m%d%H%M)
+
 build:
 	CGO_ENABLED=0 go build -v -o bin/fake-smtp ./cmd/fake-smtp
 
@@ -21,8 +23,10 @@ docker-run:
 
 docker-release:
 	docker tag fake-smtp:latest bornholm/fake-smtp:latest
+	docker tag fake-smtp:latest bornholm/fake-smtp:$(DOCKER_DATE_TAG)
 	docker login
 	docker push bornholm/fake-smtp:latest
+	docker push bornholm/fake-smtp:$(DOCKER_DATE_TAG)
 
 test:
 	go test -v -race ./...

cmd/fake-smtp/container.go

@@ -53,6 +53,11 @@ func getServiceContainer(conf *config.Config) (*service.Container, error) {
 		cqrs.CommandHandlerFunc(command.HandleDeleteEmail),
 	)
 
+	bus.RegisterCommand(
+		cqrs.MatchCommandRequest(&command.RelayEmailRequest{}),
+		cqrs.CommandHandlerFunc(command.HandleRelayEmail),
+	)
+
 	bus.RegisterQuery(
 		cqrs.MatchQueryRequest(&query.GetInboxRequest{}),
 		cqrs.QueryHandlerFunc(query.HandleGetInbox),

cmd/fake-smtp/smtp.go

@@ -12,6 +12,7 @@ import (
 	"github.com/jhillyerd/enmime"
 	"github.com/pkg/errors"
 	"gitlab.com/wpetit/goweb/cqrs"
+	"gitlab.com/wpetit/goweb/logger"
 	"gitlab.com/wpetit/goweb/middleware/container"
 	"gitlab.com/wpetit/goweb/service"
 )
@@ -74,12 +75,31 @@ func (s *Session) Data(r io.Reader) error {
 		return errors.Wrap(err, "could not retrieve cqrs service")
 	}
 
+	conf, err := config.From(s.ctn)
+	if err != nil {
+		return errors.Wrap(err, "could not retrieve config service")
+	}
+
+	if conf.Relay.Enabled {
+		cmd := &command.RelayEmailRequest{
+			Envelope: env,
+		}
+
+		if _, err := bus.Exec(s.ctx, cmd); err != nil {
+			logger.Error(s.ctx, "could not exec command", logger.E(err))
+
+			return errors.Wrapf(err, "could not exec '%T' command", cmd)
+		}
+	}
+
 	cmd := &command.StoreEmailRequest{
 		Envelope: env,
 	}
 
 	if _, err := bus.Exec(s.ctx, cmd); err != nil {
-		return errors.Wrap(err, "could not exec command")
+		logger.Error(s.ctx, "could not exec command", logger.E(err))
+
+		return errors.Wrapf(err, "could not exec '%T' command", cmd)
 	}
 
 	return nil

go.mod

@@ -5,7 +5,7 @@ go 1.14
 require (
 	github.com/asdine/storm/v3 v3.1.1
 	github.com/caarlos0/env/v6 v6.2.1
-	github.com/emersion/go-sasl v0.0.0-20191210011802-430746ea8b9b // indirect
+	github.com/emersion/go-sasl v0.0.0-20200509203442-7bfe0ed36a21
 	github.com/emersion/go-smtp v0.12.1
 	github.com/go-chi/chi v4.1.1+incompatible
 	github.com/jhillyerd/enmime v0.8.0

go.sum

@@ -53,8 +53,8 @@ github.com/dlclark/regexp2 v1.2.0 h1:8sAhBGEM0dRWogWqWyQeIJnxjWO6oIjl8FKqREDsGfk
 github.com/dlclark/regexp2 v1.2.0/go.mod h1:2pZnwuY/m+8K6iRw6wQdMtk+rH5tNGR1i55kozfMjCc=
 github.com/emersion/go-sasl v0.0.0-20190817083125-240c8404624e h1:ba7YsgX5OV8FjGi5ZWml8Jng6oBrJAb3ahqWMJ5Ce8Q=
 github.com/emersion/go-sasl v0.0.0-20190817083125-240c8404624e/go.mod h1:G/dpzLu16WtQpBfQ/z3LYiYJn3ZhKSGWn83fyoyQe/k=
-github.com/emersion/go-sasl v0.0.0-20191210011802-430746ea8b9b h1:uhWtEWBHgop1rqEk2klKaxPAkVDCXexai6hSuRQ7Nvs=
-github.com/emersion/go-sasl v0.0.0-20191210011802-430746ea8b9b/go.mod h1:G/dpzLu16WtQpBfQ/z3LYiYJn3ZhKSGWn83fyoyQe/k=
+github.com/emersion/go-sasl v0.0.0-20200509203442-7bfe0ed36a21 h1:OJyUGMJTzHTd1XQp98QTaHernxMYzRaOasRir9hUlFQ=
+github.com/emersion/go-sasl v0.0.0-20200509203442-7bfe0ed36a21/go.mod h1:iL2twTeMvZnrg54ZoPDNfJaJaqy0xIQFuBdrLsmspwQ=
 github.com/emersion/go-smtp v0.12.1 h1:1R8BDqrR2HhlGwgFYcOi+BVTvK1bMjAB65QcVpJ5sNA=
 github.com/emersion/go-smtp v0.12.1/go.mod h1:SD9V/xa4ndMw77lR3Mf7htkp8RBNYuPh9UeuBs9tpUQ=
 github.com/envoyproxy/go-control-plane v0.9.0/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=

internal/command/relay_email.go

@@ -0,0 +1,164 @@
+package command
+
+import (
+	"context"
+	"crypto/tls"
+	"io"
+	"sync"
+
+	"github.com/emersion/go-sasl"
+
+	"github.com/emersion/go-smtp"
+
+	"forge.cadoles.com/wpetit/fake-smtp/internal/config"
+	"github.com/jhillyerd/enmime"
+	"github.com/pkg/errors"
+	"gitlab.com/wpetit/goweb/cqrs"
+	"gitlab.com/wpetit/goweb/middleware/container"
+)
+
+type RelayEmailRequest struct {
+	Envelope *enmime.Envelope
+}
+
+func HandleRelayEmail(ctx context.Context, cmd cqrs.Command) error {
+	req, ok := cmd.Request().(*RelayEmailRequest)
+	if !ok {
+		return cqrs.ErrUnexpectedRequest
+	}
+
+	ctn, err := container.From(ctx)
+	if err != nil {
+		return errors.Wrap(err, "could not retrieve service container")
+	}
+
+	conf, err := config.From(ctn)
+	if err != nil {
+		return errors.Wrap(err, "could not retrieve config service")
+	}
+
+	relay := conf.Relay
+
+	if err := forwardMail(req.Envelope, relay); err != nil {
+		return errors.Wrap(err, "could not forward mail")
+	}
+
+	return nil
+}
+
+func forwardMail(env *enmime.Envelope, conf config.RelayConfig) error {
+	var tlsConfig *tls.Config
+
+	if conf.InsecureSkipVerify {
+		tlsConfig = &tls.Config{
+			// nolint: gosec
+			InsecureSkipVerify: true,
+		}
+	}
+
+	addr := conf.Address
+
+	var (
+		client *smtp.Client
+		err    error
+	)
+
+	if conf.UseTLS {
+		client, err = smtp.DialTLS(addr, tlsConfig)
+		if err != nil {
+			return errors.WithStack(err)
+		}
+	} else {
+		client, err = smtp.Dial(addr)
+		if err != nil {
+			return errors.WithStack(err)
+		}
+	}
+	defer client.Close()
+
+	if err = client.Hello("localhost"); err != nil {
+		return errors.WithStack(err)
+	}
+
+	if ok, _ := client.Extension("STARTTLS"); ok {
+		if err = client.StartTLS(tlsConfig); err != nil {
+			return errors.WithStack(err)
+		}
+	}
+
+	if conf.Username != "" || conf.Password != "" {
+		if ok, _ := client.Extension("AUTH"); ok {
+			var auth sasl.Client
+			if conf.Anonymous {
+				auth = sasl.NewAnonymousClient("fakesmtp")
+			} else {
+				auth = sasl.NewPlainClient(conf.Identity, conf.Username, conf.Password)
+			}
+
+			if err := client.Auth(auth); err != nil {
+				return errors.WithStack(err)
+			}
+		}
+	}
+
+	var from string
+
+	if conf.FromOverride != "" {
+		from = conf.FromOverride
+	} else {
+		from = env.GetHeader("From")
+	}
+
+	if err = client.Mail(from, nil); err != nil {
+		return errors.WithStack(err)
+	}
+
+	to := env.GetHeaderValues("To")
+
+	for _, addr := range to {
+		if err = client.Rcpt(addr); err != nil {
+			return errors.WithStack(err)
+		}
+	}
+
+	w, err := client.Data()
+	if err != nil {
+		return errors.WithStack(err)
+	}
+
+	pr, pw := io.Pipe()
+
+	var wg sync.WaitGroup
+
+	wg.Add(1)
+
+	go func() {
+		defer wg.Done()
+		defer pw.Close()
+
+		if err = env.Root.Encode(pw); err != nil {
+			err = errors.WithStack(err)
+		}
+	}()
+
+	_, err = io.Copy(w, pr)
+	if err != nil {
+		return err
+	}
+
+	wg.Wait()
+
+	if err != nil {
+		return errors.WithStack(err)
+	}
+
+	if err = w.Close(); err != nil {
+		return err
+	}
+
+	if err := client.Quit(); err != nil {
+		return errors.WithStack(err)
+	}
+
+	return nil
+}

internal/config/config.go

@@ -12,9 +12,10 @@ import (
 )
 
 type Config struct {
-	HTTP HTTPConfig `yaml:"http"`
-	SMTP SMTPConfig `yaml:"smtp"`
-	Data DataConfig `ymal:"data"`
+	HTTP  HTTPConfig  `yaml:"http"`
+	SMTP  SMTPConfig  `yaml:"smtp"`
+	Data  DataConfig  `yaml:"data"`
+	Relay RelayConfig `yaml:"relay"`
 }
 
 type HTTPConfig struct {
@@ -36,6 +37,18 @@ type SMTPConfig struct {
 	Debug             bool          `yaml:"debug" env:"FAKESMTP_SMTP_DEBUG"`
 }
 
+type RelayConfig struct {
+	Enabled            bool   `yaml:"enabled" env:"FAKESMTP_RELAY_ENABLED"`
+	Address            string `yaml:"address" env:"FAKESMTP_RELAY_ADDRESS"`
+	Identity           string `yaml:"identity" env:"FAKESMTP_RELAY_IDENTITY"`
+	Username           string `yaml:"username" env:"FAKESMTP_RELAY_USERNAME"`
+	Password           string `yaml:"password" env:"FAKESMTP_RELAY_PASSWORD"`
+	Anonymous          bool   `yaml:"anonymous" env:"FAKESMTP_RELAY_ANONYMOUS"`
+	UseTLS             bool   `yaml:"useTLS" env:"FAKESMTP_RELAY_USE_TLS"`
+	InsecureSkipVerify bool   `yaml:"insecureSkipVerify" env:"FAKESMTP_RELAY_INSECURE_SKIP_VERIFY"`
+	FromOverride       string `yaml:"fromOverride" env:"FAKESMTP_RELAY_FROM_OVERRIDE"`
+}
+
 type DataConfig struct {
 	Path string `yaml:"path" env:"FAKESMTP_DATA_PATH"`
 }
@@ -91,6 +104,9 @@ func NewDefault() *Config {
 		Data: DataConfig{
 			Path: "fakesmtp.db",
 		},
+		Relay: RelayConfig{
+			Enabled: false,
+		},
 	}
 }
 

misc/docker/Dockerfile

@@ -1,4 +1,4 @@
-FROM golang:1.13 AS build
+FROM golang:1.15 AS build
 
 ARG HTTP_PROXY=
 ARG HTTPS_PROXY=

misc/script/test-smtp.sh

@@ -6,7 +6,7 @@ for i in {1..10}; do
     -s "Test ${i}" \
     -a README.md \
     -a package.json \
-    foo_${i}@bar_${i}.com \
+    foo_${i}@bar${i}.com \
     <<EOF
 Lorem ipsum dolor sit amet, consectetur adipiscing elit. Vivamus eget metus ornare, placerat mi nec, ornare magna. Vivamus volutpat nisi et aliquet mollis. Phasellus eu malesuada erat, vel molestie ipsum. Etiam tincidunt ligula eget scelerisque blandit. Vivamus nec quam vitae felis rutrum cursus a eget elit. Integer vestibulum ultrices iaculis. Integer varius sapien ac ante accumsan euismod. Quisque fermentum dui nec porttitor pellentesque. Vivamus lobortis mauris eget metus sagittis tempor.