Move file backend to its own service (#9435)

* Move file backend to its own service

* Moving utils/inbucket to mailservice package

8 files changed, 0 insertions, 1576 deletions

diff --git a/utils/file_backend.go b/utils/file_backend.go
deleted file mode 100644
index 368e1ba28..000000000
--- a/utils/file_backend.go
+++ /dev/null
@@ -1,48 +0,0 @@
-// Copyright (c) 2017-present Mattermost, Inc. All Rights Reserved.
-// See License.txt for license information.
-
-package utils
-
-import (
-	"io"
-	"net/http"
-
-	"github.com/mattermost/mattermost-server/model"
-)
-
-type FileBackend interface {
-	TestConnection() *model.AppError
-
-	Reader(path string) (io.ReadCloser, *model.AppError)
-	ReadFile(path string) ([]byte, *model.AppError)
-	FileExists(path string) (bool, *model.AppError)
-	CopyFile(oldPath, newPath string) *model.AppError
-	MoveFile(oldPath, newPath string) *model.AppError
-	WriteFile(fr io.Reader, path string) (int64, *model.AppError)
-	RemoveFile(path string) *model.AppError
-
-	ListDirectory(path string) (*[]string, *model.AppError)
-	RemoveDirectory(path string) *model.AppError
-}
-
-func NewFileBackend(settings *model.FileSettings, enableComplianceFeatures bool) (FileBackend, *model.AppError) {
-	switch *settings.DriverName {
-	case model.IMAGE_DRIVER_S3:
-		return &S3FileBackend{
-			endpoint:  settings.AmazonS3Endpoint,
-			accessKey: settings.AmazonS3AccessKeyId,
-			secretKey: settings.AmazonS3SecretAccessKey,
-			secure:    settings.AmazonS3SSL == nil || *settings.AmazonS3SSL,
-			signV2:    settings.AmazonS3SignV2 != nil && *settings.AmazonS3SignV2,
-			region:    settings.AmazonS3Region,
-			bucket:    settings.AmazonS3Bucket,
-			encrypt:   settings.AmazonS3SSE != nil && *settings.AmazonS3SSE && enableComplianceFeatures,
-			trace:     settings.AmazonS3Trace != nil && *settings.AmazonS3Trace,
-		}, nil
-	case model.IMAGE_DRIVER_LOCAL:
-		return &LocalFileBackend{
-			directory: settings.Directory,
-		}, nil
-	}
-	return nil, model.NewAppError("NewFileBackend", "api.file.no_driver.app_error", nil, "", http.StatusInternalServerError)
-}
diff --git a/utils/file_backend_local.go b/utils/file_backend_local.go
deleted file mode 100644
index 681ab9234..000000000
--- a/utils/file_backend_local.go
+++ /dev/null
@@ -1,130 +0,0 @@
-// Copyright (c) 2017-present Mattermost, Inc. All Rights Reserved.
-// See License.txt for license information.
-
-package utils
-
-import (
-	"bytes"
-	"io"
-	"io/ioutil"
-	"net/http"
-	"os"
-	"path/filepath"
-
-	"github.com/mattermost/mattermost-server/mlog"
-	"github.com/mattermost/mattermost-server/model"
-)
-
-const (
-	TEST_FILE_PATH = "/testfile"
-)
-
-type LocalFileBackend struct {
-	directory string
-}
-
-func (b *LocalFileBackend) TestConnection() *model.AppError {
-	f := bytes.NewReader([]byte("testingwrite"))
-	if _, err := writeFileLocally(f, filepath.Join(b.directory, TEST_FILE_PATH)); err != nil {
-		return model.NewAppError("TestFileConnection", "api.file.test_connection.local.connection.app_error", nil, err.Error(), http.StatusInternalServerError)
-	}
-	os.Remove(filepath.Join(b.directory, TEST_FILE_PATH))
-	mlog.Info("Able to write files to local storage.")
-	return nil
-}
-
-func (b *LocalFileBackend) Reader(path string) (io.ReadCloser, *model.AppError) {
-	if f, err := os.Open(filepath.Join(b.directory, path)); err != nil {
-		return nil, model.NewAppError("Reader", "api.file.reader.reading_local.app_error", nil, err.Error(), http.StatusInternalServerError)
-	} else {
-		return f, nil
-	}
-}
-
-func (b *LocalFileBackend) ReadFile(path string) ([]byte, *model.AppError) {
-	if f, err := ioutil.ReadFile(filepath.Join(b.directory, path)); err != nil {
-		return nil, model.NewAppError("ReadFile", "api.file.read_file.reading_local.app_error", nil, err.Error(), http.StatusInternalServerError)
-	} else {
-		return f, nil
-	}
-}
-
-func (b *LocalFileBackend) FileExists(path string) (bool, *model.AppError) {
-	_, err := os.Stat(filepath.Join(b.directory, path))
-
-	if os.IsNotExist(err) {
-		return false, nil
-	} else if err == nil {
-		return true, nil
-	}
-
-	return false, model.NewAppError("ReadFile", "api.file.file_exists.exists_local.app_error", nil, err.Error(), http.StatusInternalServerError)
-}
-
-func (b *LocalFileBackend) CopyFile(oldPath, newPath string) *model.AppError {
-	if err := CopyFile(filepath.Join(b.directory, oldPath), filepath.Join(b.directory, newPath)); err != nil {
-		return model.NewAppError("copyFile", "api.file.move_file.rename.app_error", nil, err.Error(), http.StatusInternalServerError)
-	}
-	return nil
-}
-
-func (b *LocalFileBackend) MoveFile(oldPath, newPath string) *model.AppError {
-	if err := os.MkdirAll(filepath.Dir(filepath.Join(b.directory, newPath)), 0774); err != nil {
-		return model.NewAppError("moveFile", "api.file.move_file.rename.app_error", nil, err.Error(), http.StatusInternalServerError)
-	}
-
-	if err := os.Rename(filepath.Join(b.directory, oldPath), filepath.Join(b.directory, newPath)); err != nil {
-		return model.NewAppError("moveFile", "api.file.move_file.rename.app_error", nil, err.Error(), http.StatusInternalServerError)
-	}
-
-	return nil
-}
-
-func (b *LocalFileBackend) WriteFile(fr io.Reader, path string) (int64, *model.AppError) {
-	return writeFileLocally(fr, filepath.Join(b.directory, path))
-}
-
-func writeFileLocally(fr io.Reader, path string) (int64, *model.AppError) {
-	if err := os.MkdirAll(filepath.Dir(path), 0774); err != nil {
-		directory, _ := filepath.Abs(filepath.Dir(path))
-		return 0, model.NewAppError("WriteFile", "api.file.write_file_locally.create_dir.app_error", nil, "directory="+directory+", err="+err.Error(), http.StatusInternalServerError)
-	}
-	fw, err := os.OpenFile(path, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0644)
-	if err != nil {
-		return 0, model.NewAppError("WriteFile", "api.file.write_file_locally.writing.app_error", nil, err.Error(), http.StatusInternalServerError)
-	}
-	defer fw.Close()
-	written, err := io.Copy(fw, fr)
-	if err != nil {
-		return written, model.NewAppError("WriteFile", "api.file.write_file_locally.writing.app_error", nil, err.Error(), http.StatusInternalServerError)
-	}
-	return written, nil
-}
-
-func (b *LocalFileBackend) RemoveFile(path string) *model.AppError {
-	if err := os.Remove(filepath.Join(b.directory, path)); err != nil {
-		return model.NewAppError("RemoveFile", "utils.file.remove_file.local.app_error", nil, err.Error(), http.StatusInternalServerError)
-	}
-	return nil
-}
-
-func (b *LocalFileBackend) ListDirectory(path string) (*[]string, *model.AppError) {
-	var paths []string
-	if fileInfos, err := ioutil.ReadDir(filepath.Join(b.directory, path)); err != nil {
-		return nil, model.NewAppError("ListDirectory", "utils.file.list_directory.local.app_error", nil, err.Error(), http.StatusInternalServerError)
-	} else {
-		for _, fileInfo := range fileInfos {
-			if fileInfo.IsDir() {
-				paths = append(paths, filepath.Join(path, fileInfo.Name()))
-			}
-		}
-	}
-	return &paths, nil
-}
-
-func (b *LocalFileBackend) RemoveDirectory(path string) *model.AppError {
-	if err := os.RemoveAll(filepath.Join(b.directory, path)); err != nil {
-		return model.NewAppError("RemoveDirectory", "utils.file.remove_directory.local.app_error", nil, err.Error(), http.StatusInternalServerError)
-	}
-	return nil
-}
diff --git a/utils/file_backend_s3.go b/utils/file_backend_s3.go
deleted file mode 100644
index f5f96f878..000000000
--- a/utils/file_backend_s3.go
+++ /dev/null
@@ -1,294 +0,0 @@
-// Copyright (c) 2017-present Mattermost, Inc. All Rights Reserved.
-// See License.txt for license information.
-
-package utils
-
-import (
-	"bytes"
-	"io"
-	"io/ioutil"
-	"net/http"
-	"os"
-	"path/filepath"
-	"strings"
-
-	s3 "github.com/minio/minio-go"
-	"github.com/minio/minio-go/pkg/credentials"
-	"github.com/minio/minio-go/pkg/encrypt"
-
-	"github.com/mattermost/mattermost-server/mlog"
-	"github.com/mattermost/mattermost-server/model"
-)
-
-type S3FileBackend struct {
-	endpoint  string
-	accessKey string
-	secretKey string
-	secure    bool
-	signV2    bool
-	region    string
-	bucket    string
-	encrypt   bool
-	trace     bool
-}
-
-// Similar to s3.New() but allows initialization of signature v2 or signature v4 client.
-// If signV2 input is false, function always returns signature v4.
-//
-// Additionally this function also takes a user defined region, if set
-// disables automatic region lookup.
-func (b *S3FileBackend) s3New() (*s3.Client, error) {
-	var creds *credentials.Credentials
-
-	if b.accessKey == "" && b.secretKey == "" {
-		creds = credentials.NewIAM("")
-	} else if b.signV2 {
-		creds = credentials.NewStatic(b.accessKey, b.secretKey, "", credentials.SignatureV2)
-	} else {
-		creds = credentials.NewStatic(b.accessKey, b.secretKey, "", credentials.SignatureV4)
-	}
-
-	s3Clnt, err := s3.NewWithCredentials(b.endpoint, creds, b.secure, b.region)
-	if err != nil {
-		return nil, err
-	}
-
-	if b.trace {
-		s3Clnt.TraceOn(os.Stdout)
-	}
-
-	return s3Clnt, nil
-}
-
-func (b *S3FileBackend) TestConnection() *model.AppError {
-	s3Clnt, err := b.s3New()
-	if err != nil {
-		return model.NewAppError("TestFileConnection", "api.file.test_connection.s3.connection.app_error", nil, err.Error(), http.StatusInternalServerError)
-	}
-
-	exists, err := s3Clnt.BucketExists(b.bucket)
-	if err != nil {
-		return model.NewAppError("TestFileConnection", "api.file.test_connection.s3.bucket_exists.app_error", nil, err.Error(), http.StatusInternalServerError)
-	}
-
-	if !exists {
-		mlog.Warn("Bucket specified does not exist. Attempting to create...")
-		err := s3Clnt.MakeBucket(b.bucket, b.region)
-		if err != nil {
-			mlog.Error("Unable to create bucket.")
-			return model.NewAppError("TestFileConnection", "api.file.test_connection.s3.bucked_create.app_error", nil, err.Error(), http.StatusInternalServerError)
-		}
-	}
-	mlog.Info("Connection to S3 or minio is good. Bucket exists.")
-	return nil
-}
-
-// Caller must close the first return value
-func (b *S3FileBackend) Reader(path string) (io.ReadCloser, *model.AppError) {
-	s3Clnt, err := b.s3New()
-	if err != nil {
-		return nil, model.NewAppError("Reader", "api.file.reader.s3.app_error", nil, err.Error(), http.StatusInternalServerError)
-	}
-	minioObject, err := s3Clnt.GetObject(b.bucket, path, s3.GetObjectOptions{})
-	if err != nil {
-		return nil, model.NewAppError("Reader", "api.file.reader.s3.app_error", nil, err.Error(), http.StatusInternalServerError)
-	}
-	return minioObject, nil
-}
-
-func (b *S3FileBackend) ReadFile(path string) ([]byte, *model.AppError) {
-	s3Clnt, err := b.s3New()
-	if err != nil {
-		return nil, model.NewAppError("ReadFile", "api.file.read_file.s3.app_error", nil, err.Error(), http.StatusInternalServerError)
-	}
-	minioObject, err := s3Clnt.GetObject(b.bucket, path, s3.GetObjectOptions{})
-	if err != nil {
-		return nil, model.NewAppError("ReadFile", "api.file.read_file.s3.app_error", nil, err.Error(), http.StatusInternalServerError)
-	}
-	defer minioObject.Close()
-	if f, err := ioutil.ReadAll(minioObject); err != nil {
-		return nil, model.NewAppError("ReadFile", "api.file.read_file.s3.app_error", nil, err.Error(), http.StatusInternalServerError)
-	} else {
-		return f, nil
-	}
-}
-
-func (b *S3FileBackend) FileExists(path string) (bool, *model.AppError) {
-	s3Clnt, err := b.s3New()
-
-	if err != nil {
-		return false, model.NewAppError("FileExists", "api.file.file_exists.s3.app_error", nil, err.Error(), http.StatusInternalServerError)
-	}
-	_, err = s3Clnt.StatObject(b.bucket, path, s3.StatObjectOptions{})
-
-	if err == nil {
-		return true, nil
-	}
-
-	if err.(s3.ErrorResponse).Code == "NoSuchKey" {
-		return false, nil
-	}
-
-	return false, model.NewAppError("FileExists", "api.file.file_exists.s3.app_error", nil, err.Error(), http.StatusInternalServerError)
-}
-
-func (b *S3FileBackend) CopyFile(oldPath, newPath string) *model.AppError {
-	s3Clnt, err := b.s3New()
-	if err != nil {
-		return model.NewAppError("copyFile", "api.file.write_file.s3.app_error", nil, err.Error(), http.StatusInternalServerError)
-	}
-
-	source := s3.NewSourceInfo(b.bucket, oldPath, nil)
-	destination, err := s3.NewDestinationInfo(b.bucket, newPath, encrypt.NewSSE(), nil)
-	if err != nil {
-		return model.NewAppError("copyFile", "api.file.write_file.s3.app_error", nil, err.Error(), http.StatusInternalServerError)
-	}
-	if err = s3Clnt.CopyObject(destination, source); err != nil {
-		return model.NewAppError("copyFile", "api.file.move_file.copy_within_s3.app_error", nil, err.Error(), http.StatusInternalServerError)
-	}
-	return nil
-}
-
-func (b *S3FileBackend) MoveFile(oldPath, newPath string) *model.AppError {
-	s3Clnt, err := b.s3New()
-	if err != nil {
-		return model.NewAppError("moveFile", "api.file.write_file.s3.app_error", nil, err.Error(), http.StatusInternalServerError)
-	}
-
-	source := s3.NewSourceInfo(b.bucket, oldPath, nil)
-	destination, err := s3.NewDestinationInfo(b.bucket, newPath, encrypt.NewSSE(), nil)
-	if err != nil {
-		return model.NewAppError("moveFile", "api.file.write_file.s3.app_error", nil, err.Error(), http.StatusInternalServerError)
-	}
-	if err = s3Clnt.CopyObject(destination, source); err != nil {
-		return model.NewAppError("moveFile", "api.file.move_file.copy_within_s3.app_error", nil, err.Error(), http.StatusInternalServerError)
-	}
-	if err = s3Clnt.RemoveObject(b.bucket, oldPath); err != nil {
-		return model.NewAppError("moveFile", "api.file.move_file.delete_from_s3.app_error", nil, err.Error(), http.StatusInternalServerError)
-	}
-	return nil
-}
-
-func (b *S3FileBackend) WriteFile(fr io.Reader, path string) (int64, *model.AppError) {
-	s3Clnt, err := b.s3New()
-	if err != nil {
-		return 0, model.NewAppError("WriteFile", "api.file.write_file.s3.app_error", nil, err.Error(), http.StatusInternalServerError)
-	}
-
-	var contentType string
-	if ext := filepath.Ext(path); model.IsFileExtImage(ext) {
-		contentType = model.GetImageMimeType(ext)
-	} else {
-		contentType = "binary/octet-stream"
-	}
-
-	options := s3PutOptions(b.encrypt, contentType)
-	var buf bytes.Buffer
-	_, err = buf.ReadFrom(fr)
-	if err != nil {
-		return 0, model.NewAppError("WriteFile", "api.file.write_file.s3.app_error", nil, err.Error(), http.StatusInternalServerError)
-	}
-	written, err := s3Clnt.PutObject(b.bucket, path, &buf, int64(buf.Len()), options)
-	if err != nil {
-		return written, model.NewAppError("WriteFile", "api.file.write_file.s3.app_error", nil, err.Error(), http.StatusInternalServerError)
-	}
-
-	return written, nil
-}
-
-func (b *S3FileBackend) RemoveFile(path string) *model.AppError {
-	s3Clnt, err := b.s3New()
-	if err != nil {
-		return model.NewAppError("RemoveFile", "utils.file.remove_file.s3.app_error", nil, err.Error(), http.StatusInternalServerError)
-	}
-
-	if err := s3Clnt.RemoveObject(b.bucket, path); err != nil {
-		return model.NewAppError("RemoveFile", "utils.file.remove_file.s3.app_error", nil, err.Error(), http.StatusInternalServerError)
-	}
-
-	return nil
-}
-
-func getPathsFromObjectInfos(in <-chan s3.ObjectInfo) <-chan string {
-	out := make(chan string, 1)
-
-	go func() {
-		defer close(out)
-
-		for {
-			info, done := <-in
-
-			if !done {
-				break
-			}
-
-			out <- info.Key
-		}
-	}()
-
-	return out
-}
-
-func (b *S3FileBackend) ListDirectory(path string) (*[]string, *model.AppError) {
-	var paths []string
-
-	s3Clnt, err := b.s3New()
-	if err != nil {
-		return nil, model.NewAppError("ListDirectory", "utils.file.list_directory.s3.app_error", nil, err.Error(), http.StatusInternalServerError)
-	}
-
-	doneCh := make(chan struct{})
-
-	defer close(doneCh)
-
-	for object := range s3Clnt.ListObjects(b.bucket, path, false, doneCh) {
-		if object.Err != nil {
-			return nil, model.NewAppError("ListDirectory", "utils.file.list_directory.s3.app_error", nil, object.Err.Error(), http.StatusInternalServerError)
-		}
-		paths = append(paths, strings.Trim(object.Key, "/"))
-	}
-
-	return &paths, nil
-}
-
-func (b *S3FileBackend) RemoveDirectory(path string) *model.AppError {
-	s3Clnt, err := b.s3New()
-	if err != nil {
-		return model.NewAppError("RemoveDirectory", "utils.file.remove_directory.s3.app_error", nil, err.Error(), http.StatusInternalServerError)
-	}
-
-	doneCh := make(chan struct{})
-
-	for err := range s3Clnt.RemoveObjects(b.bucket, getPathsFromObjectInfos(s3Clnt.ListObjects(b.bucket, path, true, doneCh))) {
-		if err.Err != nil {
-			doneCh <- struct{}{}
-			return model.NewAppError("RemoveDirectory", "utils.file.remove_directory.s3.app_error", nil, err.Err.Error(), http.StatusInternalServerError)
-		}
-	}
-
-	close(doneCh)
-	return nil
-}
-
-func s3PutOptions(encrypted bool, contentType string) s3.PutObjectOptions {
-	options := s3.PutObjectOptions{}
-	if encrypted {
-		options.ServerSideEncryption = encrypt.NewSSE()
-	}
-	options.ContentType = contentType
-
-	return options
-}
-
-func CheckMandatoryS3Fields(settings *model.FileSettings) *model.AppError {
-	if len(settings.AmazonS3Bucket) == 0 {
-		return model.NewAppError("S3File", "api.admin.test_s3.missing_s3_bucket", nil, "", http.StatusBadRequest)
-	}
-
-	// if S3 endpoint is not set call the set defaults to set that
-	if len(settings.AmazonS3Endpoint) == 0 {
-		settings.SetDefaults()
-	}
-
-	return nil
-}
diff --git a/utils/file_backend_s3_test.go b/utils/file_backend_s3_test.go
deleted file mode 100644
index a8834f226..000000000
--- a/utils/file_backend_s3_test.go
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright (c) 2018-present Mattermost, Inc. All Rights Reserved.
-// See License.txt for license information.
-
-package utils
-
-import (
-	"testing"
-
-	"github.com/mattermost/mattermost-server/model"
-)
-
-func TestCheckMandatoryS3Fields(t *testing.T) {
-	cfg := model.FileSettings{}
-
-	err := CheckMandatoryS3Fields(&cfg)
-	if err == nil || err.Message != "api.admin.test_s3.missing_s3_bucket" {
-		t.Fatal("should've failed with missing s3 bucket")
-	}
-
-	cfg.AmazonS3Bucket = "test-mm"
-	err = CheckMandatoryS3Fields(&cfg)
-	if err != nil {
-		t.Fatal("should've not failed")
-	}
-
-	cfg.AmazonS3Endpoint = ""
-	err = CheckMandatoryS3Fields(&cfg)
-	if err != nil || cfg.AmazonS3Endpoint != "s3.amazonaws.com" {
-		t.Fatal("should've not failed because it should set the endpoint to the default")
-	}
-
-}
diff --git a/utils/file_backend_test.go b/utils/file_backend_test.go
deleted file mode 100644
index f7ce7ca61..000000000
--- a/utils/file_backend_test.go
+++ /dev/null
@@ -1,287 +0,0 @@
-// Copyright (c) 2017-present Mattermost, Inc. All Rights Reserved.
-// See License.txt for license information.
-
-package utils
-
-import (
-	"bytes"
-	"fmt"
-	"io/ioutil"
-	"os"
-	"testing"
-
-	"github.com/stretchr/testify/require"
-	"github.com/stretchr/testify/suite"
-
-	"github.com/mattermost/mattermost-server/mlog"
-	"github.com/mattermost/mattermost-server/model"
-)
-
-type FileBackendTestSuite struct {
-	suite.Suite
-
-	settings model.FileSettings
-	backend  FileBackend
-}
-
-func TestLocalFileBackendTestSuite(t *testing.T) {
-	// Setup a global logger to catch tests logging outside of app context
-	// The global logger will be stomped by apps initalizing but that's fine for testing. Ideally this won't happen.
-	mlog.InitGlobalLogger(mlog.NewLogger(&mlog.LoggerConfiguration{
-		EnableConsole: true,
-		ConsoleJson:   true,
-		ConsoleLevel:  "error",
-		EnableFile:    false,
-	}))
-
-	dir, err := ioutil.TempDir("", "")
-	require.NoError(t, err)
-	defer os.RemoveAll(dir)
-
-	suite.Run(t, &FileBackendTestSuite{
-		settings: model.FileSettings{
-			DriverName: model.NewString(model.IMAGE_DRIVER_LOCAL),
-			Directory:  dir,
-		},
-	})
-}
-
-func TestS3FileBackendTestSuite(t *testing.T) {
-	runBackendTest(t, false)
-}
-
-func TestS3FileBackendTestSuiteWithEncryption(t *testing.T) {
-	runBackendTest(t, true)
-}
-
-func runBackendTest(t *testing.T, encrypt bool) {
-	s3Host := os.Getenv("CI_HOST")
-	if s3Host == "" {
-		s3Host = "dockerhost"
-	}
-
-	s3Port := os.Getenv("CI_MINIO_PORT")
-	if s3Port == "" {
-		s3Port = "9001"
-	}
-
-	s3Endpoint := fmt.Sprintf("%s:%s", s3Host, s3Port)
-
-	suite.Run(t, &FileBackendTestSuite{
-		settings: model.FileSettings{
-			DriverName:              model.NewString(model.IMAGE_DRIVER_S3),
-			AmazonS3AccessKeyId:     model.MINIO_ACCESS_KEY,
-			AmazonS3SecretAccessKey: model.MINIO_SECRET_KEY,
-			AmazonS3Bucket:          model.MINIO_BUCKET,
-			AmazonS3Endpoint:        s3Endpoint,
-			AmazonS3SSL:             model.NewBool(false),
-			AmazonS3SSE:             model.NewBool(encrypt),
-		},
-	})
-}
-
-func (s *FileBackendTestSuite) SetupTest() {
-	TranslationsPreInit()
-
-	backend, err := NewFileBackend(&s.settings, true)
-	require.Nil(s.T(), err)
-	s.backend = backend
-}
-
-func (s *FileBackendTestSuite) TestConnection() {
-	s.Nil(s.backend.TestConnection())
-}
-
-func (s *FileBackendTestSuite) TestReadWriteFile() {
-	b := []byte("test")
-	path := "tests/" + model.NewId()
-
-	written, err := s.backend.WriteFile(bytes.NewReader(b), path)
-	s.Nil(err)
-	s.EqualValues(len(b), written, "expected given number of bytes to have been written")
-	defer s.backend.RemoveFile(path)
-
-	read, err := s.backend.ReadFile(path)
-	s.Nil(err)
-
-	readString := string(read)
-	s.EqualValues(readString, "test")
-}
-
-func (s *FileBackendTestSuite) TestReadWriteFileImage() {
-	b := []byte("testimage")
-	path := "tests/" + model.NewId() + ".png"
-
-	written, err := s.backend.WriteFile(bytes.NewReader(b), path)
-	s.Nil(err)
-	s.EqualValues(len(b), written, "expected given number of bytes to have been written")
-	defer s.backend.RemoveFile(path)
-
-	read, err := s.backend.ReadFile(path)
-	s.Nil(err)
-
-	readString := string(read)
-	s.EqualValues(readString, "testimage")
-}
-
-func (s *FileBackendTestSuite) TestFileExists() {
-	b := []byte("testimage")
-	path := "tests/" + model.NewId() + ".png"
-
-	_, err := s.backend.WriteFile(bytes.NewReader(b), path)
-	s.Nil(err)
-	defer s.backend.RemoveFile(path)
-
-	res, err := s.backend.FileExists(path)
-	s.Nil(err)
-	s.True(res)
-
-	res, err = s.backend.FileExists("tests/idontexist.png")
-	s.Nil(err)
-	s.False(res)
-}
-
-func (s *FileBackendTestSuite) TestCopyFile() {
-	b := []byte("test")
-	path1 := "tests/" + model.NewId()
-	path2 := "tests/" + model.NewId()
-
-	written, err := s.backend.WriteFile(bytes.NewReader(b), path1)
-	s.Nil(err)
-	s.EqualValues(len(b), written, "expected given number of bytes to have been written")
-	defer s.backend.RemoveFile(path1)
-
-	err = s.backend.CopyFile(path1, path2)
-	s.Nil(err)
-	defer s.backend.RemoveFile(path2)
-
-	_, err = s.backend.ReadFile(path1)
-	s.Nil(err)
-
-	_, err = s.backend.ReadFile(path2)
-	s.Nil(err)
-}
-
-func (s *FileBackendTestSuite) TestCopyFileToDirectoryThatDoesntExist() {
-	b := []byte("test")
-	path1 := "tests/" + model.NewId()
-	path2 := "tests/newdirectory/" + model.NewId()
-
-	written, err := s.backend.WriteFile(bytes.NewReader(b), path1)
-	s.Nil(err)
-	s.EqualValues(len(b), written, "expected given number of bytes to have been written")
-	defer s.backend.RemoveFile(path1)
-
-	err = s.backend.CopyFile(path1, path2)
-	s.Nil(err)
-	defer s.backend.RemoveFile(path2)
-
-	_, err = s.backend.ReadFile(path1)
-	s.Nil(err)
-
-	_, err = s.backend.ReadFile(path2)
-	s.Nil(err)
-}
-
-func (s *FileBackendTestSuite) TestMoveFile() {
-	b := []byte("test")
-	path1 := "tests/" + model.NewId()
-	path2 := "tests/" + model.NewId()
-
-	written, err := s.backend.WriteFile(bytes.NewReader(b), path1)
-	s.Nil(err)
-	s.EqualValues(len(b), written, "expected given number of bytes to have been written")
-	defer s.backend.RemoveFile(path1)
-
-	s.Nil(s.backend.MoveFile(path1, path2))
-	defer s.backend.RemoveFile(path2)
-
-	_, err = s.backend.ReadFile(path1)
-	s.Error(err)
-
-	_, err = s.backend.ReadFile(path2)
-	s.Nil(err)
-}
-
-func (s *FileBackendTestSuite) TestRemoveFile() {
-	b := []byte("test")
-	path := "tests/" + model.NewId()
-
-	written, err := s.backend.WriteFile(bytes.NewReader(b), path)
-	s.Nil(err)
-	s.EqualValues(len(b), written, "expected given number of bytes to have been written")
-	s.Nil(s.backend.RemoveFile(path))
-
-	_, err = s.backend.ReadFile(path)
-	s.Error(err)
-
-	written, err = s.backend.WriteFile(bytes.NewReader(b), "tests2/foo")
-	s.Nil(err)
-	s.EqualValues(len(b), written, "expected given number of bytes to have been written")
-
-	written, err = s.backend.WriteFile(bytes.NewReader(b), "tests2/bar")
-	s.Nil(err)
-	s.EqualValues(len(b), written, "expected given number of bytes to have been written")
-
-	written, err = s.backend.WriteFile(bytes.NewReader(b), "tests2/asdf")
-	s.Nil(err)
-	s.EqualValues(len(b), written, "expected given number of bytes to have been written")
-
-	s.Nil(s.backend.RemoveDirectory("tests2"))
-}
-
-func (s *FileBackendTestSuite) TestListDirectory() {
-	b := []byte("test")
-	path1 := "19700101/" + model.NewId()
-	path2 := "19800101/" + model.NewId()
-
-	written, err := s.backend.WriteFile(bytes.NewReader(b), path1)
-	s.Nil(err)
-	s.EqualValues(len(b), written, "expected given number of bytes to have been written")
-	defer s.backend.RemoveFile(path1)
-
-	written, err = s.backend.WriteFile(bytes.NewReader(b), path2)
-	s.Nil(err)
-	s.EqualValues(len(b), written, "expected given number of bytes to have been written")
-	defer s.backend.RemoveFile(path2)
-
-	paths, err := s.backend.ListDirectory("")
-	s.Nil(err)
-
-	found1 := false
-	found2 := false
-	for _, path := range *paths {
-		if path == "19700101" {
-			found1 = true
-		} else if path == "19800101" {
-			found2 = true
-		}
-	}
-	s.True(found1)
-	s.True(found2)
-}
-
-func (s *FileBackendTestSuite) TestRemoveDirectory() {
-	b := []byte("test")
-
-	written, err := s.backend.WriteFile(bytes.NewReader(b), "tests2/foo")
-	s.Nil(err)
-	s.EqualValues(len(b), written, "expected given number of bytes to have been written")
-
-	written, err = s.backend.WriteFile(bytes.NewReader(b), "tests2/bar")
-	s.Nil(err)
-	s.EqualValues(len(b), written, "expected given number of bytes to have been written")
-
-	written, err = s.backend.WriteFile(bytes.NewReader(b), "tests2/aaa")
-	s.Nil(err)
-	s.EqualValues(len(b), written, "expected given number of bytes to have been written")
-
-	s.Nil(s.backend.RemoveDirectory("tests2"))
-
-	_, err = s.backend.ReadFile("tests2/foo")
-	s.Error(err)
-	_, err = s.backend.ReadFile("tests2/bar")
-	s.Error(err)
-	_, err = s.backend.ReadFile("tests2/asdf")
-	s.Error(err)
-}
diff --git a/utils/inbucket.go b/utils/inbucket.go
deleted file mode 100644
index 5c40d5757..000000000
--- a/utils/inbucket.go
+++ /dev/null
@@ -1,200 +0,0 @@
-// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
-// See License.txt for license information.
-
-package utils
-
-import (
-	"bytes"
-	"encoding/json"
-	"fmt"
-	"io"
-	"net/http"
-	"os"
-	"strings"
-	"time"
-)
-
-const (
-	INBUCKET_API = "/api/v1/mailbox/"
-)
-
-// OutputJSONHeader holds the received Header to test sending emails (inbucket)
-type JSONMessageHeaderInbucket []struct {
-	Mailbox             string
-	ID                  string `json:"Id"`
-	From, Subject, Date string
-	To                  []string
-	Size                int
-}
-
-// OutputJSONMessage holds the received Message fto test sending emails (inbucket)
-type JSONMessageInbucket struct {
-	Mailbox             string
-	ID                  string `json:"Id"`
-	From, Subject, Date string
-	Size                int
-	Header              map[string][]string
-	Body                struct {
-		Text string
-		HTML string `json:"Html"`
-	}
-	Attachments []struct {
-		Filename     string
-		ContentType  string `json:"content-type"`
-		DownloadLink string `json:"download-link"`
-		Bytes        []byte `json:"-"`
-	}
-}
-
-func ParseEmail(email string) string {
-	pos := strings.Index(email, "@")
-	parsedEmail := email[0:pos]
-	return parsedEmail
-}
-
-func GetMailBox(email string) (results JSONMessageHeaderInbucket, err error) {
-
-	parsedEmail := ParseEmail(email)
-
-	url := fmt.Sprintf("%s%s%s", getInbucketHost(), INBUCKET_API, parsedEmail)
-	req, err := http.NewRequest("GET", url, nil)
-	if err != nil {
-		return nil, err
-	}
-
-	client := &http.Client{}
-
-	resp, err := client.Do(req)
-	if err != nil {
-		return nil, err
-	}
-	defer resp.Body.Close()
-
-	if resp.Body == nil {
-		return nil, fmt.Errorf("No Mailbox")
-	}
-
-	var record JSONMessageHeaderInbucket
-	err = json.NewDecoder(resp.Body).Decode(&record)
-	switch {
-	case err == io.EOF:
-		return nil, fmt.Errorf("Error: %s", err)
-	case err != nil:
-		return nil, fmt.Errorf("Error: %s", err)
-	}
-	if len(record) == 0 {
-		return nil, fmt.Errorf("No mailbox")
-	}
-
-	return record, nil
-}
-
-func GetMessageFromMailbox(email, id string) (results JSONMessageInbucket, err error) {
-
-	parsedEmail := ParseEmail(email)
-
-	var record JSONMessageInbucket
-
-	url := fmt.Sprintf("%s%s%s/%s", getInbucketHost(), INBUCKET_API, parsedEmail, id)
-	emailResponse, err := get(url)
-	if err != nil {
-		return record, err
-	}
-	defer emailResponse.Body.Close()
-
-	err = json.NewDecoder(emailResponse.Body).Decode(&record)
-
-	// download attachments
-	if record.Attachments != nil && len(record.Attachments) > 0 {
-		for i := range record.Attachments {
-			if bytes, err := downloadAttachment(record.Attachments[i].DownloadLink); err != nil {
-				return record, err
-			} else {
-				record.Attachments[i].Bytes = make([]byte, len(bytes))
-				copy(record.Attachments[i].Bytes, bytes)
-			}
-		}
-	}
-
-	return record, err
-}
-
-func downloadAttachment(url string) ([]byte, error) {
-	attachmentResponse, err := get(url)
-	if err != nil {
-		return nil, err
-	}
-	defer attachmentResponse.Body.Close()
-
-	buf := new(bytes.Buffer)
-	io.Copy(buf, attachmentResponse.Body)
-	return buf.Bytes(), nil
-}
-
-func get(url string) (*http.Response, error) {
-	req, err := http.NewRequest("GET", url, nil)
-	if err != nil {
-		return nil, err
-	}
-
-	client := &http.Client{}
-	resp, err := client.Do(req)
-	if err != nil {
-		return nil, err
-	}
-
-	return resp, nil
-}
-
-func DeleteMailBox(email string) (err error) {
-
-	parsedEmail := ParseEmail(email)
-
-	url := fmt.Sprintf("%s%s%s", getInbucketHost(), INBUCKET_API, parsedEmail)
-	req, err := http.NewRequest("DELETE", url, nil)
-	if err != nil {
-		return err
-	}
-
-	client := &http.Client{}
-
-	resp, err := client.Do(req)
-	if err != nil {
-		return err
-	}
-	defer resp.Body.Close()
-
-	return nil
-}
-
-func RetryInbucket(attempts int, callback func() error) (err error) {
-	for i := 0; ; i++ {
-		err = callback()
-		if err == nil {
-			return nil
-		}
-
-		if i >= (attempts - 1) {
-			break
-		}
-
-		time.Sleep(5 * time.Second)
-
-		fmt.Println("retrying...")
-	}
-	return fmt.Errorf("After %d attempts, last error: %s", attempts, err)
-}
-
-func getInbucketHost() (host string) {
-
-	inbucket_host := os.Getenv("CI_HOST")
-	if inbucket_host == "" {
-		inbucket_host = "dockerhost"
-	}
-
-	inbucket_port := os.Getenv("CI_INBUCKET_PORT")
-	if inbucket_port == "" {
-		inbucket_port = "9000"
-	}
-	return fmt.Sprintf("http://%s:%s", inbucket_host, inbucket_port)
-}
diff --git a/utils/mail.go b/utils/mail.go
deleted file mode 100644
index 750cb64fe..000000000
--- a/utils/mail.go
+++ /dev/null
@@ -1,297 +0,0 @@
-// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
-// See License.txt for license information.
-
-package utils
-
-import (
-	"crypto/tls"
-	"errors"
-	"fmt"
-	"io"
-	"mime"
-	"net"
-	"net/mail"
-	"net/smtp"
-	"time"
-
-	"gopkg.in/gomail.v2"
-
-	"net/http"
-
-	"github.com/jaytaylor/html2text"
-	"github.com/mattermost/mattermost-server/mlog"
-	"github.com/mattermost/mattermost-server/model"
-)
-
-func encodeRFC2047Word(s string) string {
-	return mime.BEncoding.Encode("utf-8", s)
-}
-
-type SmtpConnectionInfo struct {
-	SmtpUsername         string
-	SmtpPassword         string
-	SmtpServerName       string
-	SmtpServerHost       string
-	SmtpPort             string
-	SkipCertVerification bool
-	ConnectionSecurity   string
-	Auth                 bool
-}
-
-type authChooser struct {
-	smtp.Auth
-	connectionInfo *SmtpConnectionInfo
-}
-
-func (a *authChooser) Start(server *smtp.ServerInfo) (string, []byte, error) {
-	smtpAddress := a.connectionInfo.SmtpServerName + ":" + a.connectionInfo.SmtpPort
-	a.Auth = LoginAuth(a.connectionInfo.SmtpUsername, a.connectionInfo.SmtpPassword, smtpAddress)
-	for _, method := range server.Auth {
-		if method == "PLAIN" {
-			a.Auth = smtp.PlainAuth("", a.connectionInfo.SmtpUsername, a.connectionInfo.SmtpPassword, a.connectionInfo.SmtpServerName+":"+a.connectionInfo.SmtpPort)
-			break
-		}
-	}
-	return a.Auth.Start(server)
-}
-
-type loginAuth struct {
-	username, password, host string
-}
-
-func LoginAuth(username, password, host string) smtp.Auth {
-	return &loginAuth{username, password, host}
-}
-
-func (a *loginAuth) Start(server *smtp.ServerInfo) (string, []byte, error) {
-	if !server.TLS {
-		return "", nil, errors.New("unencrypted connection")
-	}
-
-	if server.Name != a.host {
-		return "", nil, errors.New("wrong host name")
-	}
-
-	return "LOGIN", []byte{}, nil
-}
-
-func (a *loginAuth) Next(fromServer []byte, more bool) ([]byte, error) {
-	if more {
-		switch string(fromServer) {
-		case "Username:":
-			return []byte(a.username), nil
-		case "Password:":
-			return []byte(a.password), nil
-		default:
-			return nil, errors.New("Unknown fromServer")
-		}
-	}
-	return nil, nil
-}
-
-func ConnectToSMTPServerAdvanced(connectionInfo *SmtpConnectionInfo) (net.Conn, *model.AppError) {
-	var conn net.Conn
-	var err error
-
-	smtpAddress := connectionInfo.SmtpServerHost + ":" + connectionInfo.SmtpPort
-	if connectionInfo.ConnectionSecurity == model.CONN_SECURITY_TLS {
-		tlsconfig := &tls.Config{
-			InsecureSkipVerify: connectionInfo.SkipCertVerification,
-			ServerName:         connectionInfo.SmtpServerName,
-		}
-
-		conn, err = tls.Dial("tcp", smtpAddress, tlsconfig)
-		if err != nil {
-			return nil, model.NewAppError("SendMail", "utils.mail.connect_smtp.open_tls.app_error", nil, err.Error(), http.StatusInternalServerError)
-		}
-	} else {
-		conn, err = net.Dial("tcp", smtpAddress)
-		if err != nil {
-			return nil, model.NewAppError("SendMail", "utils.mail.connect_smtp.open.app_error", nil, err.Error(), http.StatusInternalServerError)
-		}
-	}
-
-	return conn, nil
-}
-
-func ConnectToSMTPServer(config *model.Config) (net.Conn, *model.AppError) {
-	return ConnectToSMTPServerAdvanced(
-		&SmtpConnectionInfo{
-			ConnectionSecurity:   config.EmailSettings.ConnectionSecurity,
-			SkipCertVerification: *config.EmailSettings.SkipServerCertificateVerification,
-			SmtpServerName:       config.EmailSettings.SMTPServer,
-			SmtpServerHost:       config.EmailSettings.SMTPServer,
-			SmtpPort:             config.EmailSettings.SMTPPort,
-		},
-	)
-}
-
-func NewSMTPClientAdvanced(conn net.Conn, hostname string, connectionInfo *SmtpConnectionInfo) (*smtp.Client, *model.AppError) {
-	c, err := smtp.NewClient(conn, connectionInfo.SmtpServerName+":"+connectionInfo.SmtpPort)
-	if err != nil {
-		mlog.Error(fmt.Sprintf("Failed to open a connection to SMTP server %v", err))
-		return nil, model.NewAppError("SendMail", "utils.mail.connect_smtp.open_tls.app_error", nil, err.Error(), http.StatusInternalServerError)
-	}
-
-	if hostname != "" {
-		err := c.Hello(hostname)
-		if err != nil {
-			mlog.Error(fmt.Sprintf("Failed to to set the HELO to SMTP server %v", err))
-			return nil, model.NewAppError("SendMail", "utils.mail.connect_smtp.helo.app_error", nil, err.Error(), http.StatusInternalServerError)
-		}
-	}
-
-	if connectionInfo.ConnectionSecurity == model.CONN_SECURITY_STARTTLS {
-		tlsconfig := &tls.Config{
-			InsecureSkipVerify: connectionInfo.SkipCertVerification,
-			ServerName:         connectionInfo.SmtpServerName,
-		}
-		c.StartTLS(tlsconfig)
-	}
-
-	if connectionInfo.Auth {
-		if err = c.Auth(&authChooser{connectionInfo: connectionInfo}); err != nil {
-			return nil, model.NewAppError("SendMail", "utils.mail.new_client.auth.app_error", nil, err.Error(), http.StatusInternalServerError)
-		}
-	}
-	return c, nil
-}
-
-func NewSMTPClient(conn net.Conn, config *model.Config) (*smtp.Client, *model.AppError) {
-	return NewSMTPClientAdvanced(
-		conn,
-		GetHostnameFromSiteURL(*config.ServiceSettings.SiteURL),
-		&SmtpConnectionInfo{
-			ConnectionSecurity:   config.EmailSettings.ConnectionSecurity,
-			SkipCertVerification: *config.EmailSettings.SkipServerCertificateVerification,
-			SmtpServerName:       config.EmailSettings.SMTPServer,
-			SmtpServerHost:       config.EmailSettings.SMTPServer,
-			SmtpPort:             config.EmailSettings.SMTPPort,
-			Auth:                 *config.EmailSettings.EnableSMTPAuth,
-			SmtpUsername:         config.EmailSettings.SMTPUsername,
-			SmtpPassword:         config.EmailSettings.SMTPPassword,
-		},
-	)
-}
-
-func TestConnection(config *model.Config) {
-	if !config.EmailSettings.SendEmailNotifications {
-		return
-	}
-
-	conn, err1 := ConnectToSMTPServer(config)
-	if err1 != nil {
-		mlog.Error(fmt.Sprintf("SMTP server settings do not appear to be configured properly err=%v details=%v", T(err1.Message), err1.DetailedError))
-		return
-	}
-	defer conn.Close()
-
-	c, err2 := NewSMTPClient(conn, config)
-	if err2 != nil {
-		mlog.Error(fmt.Sprintf("SMTP server settings do not appear to be configured properly err=%v details=%v", T(err2.Message), err2.DetailedError))
-		return
-	}
-	defer c.Quit()
-	defer c.Close()
-}
-
-func SendMailUsingConfig(to, subject, htmlBody string, config *model.Config, enableComplianceFeatures bool) *model.AppError {
-	fromMail := mail.Address{Name: config.EmailSettings.FeedbackName, Address: config.EmailSettings.FeedbackEmail}
-
-	return SendMailUsingConfigAdvanced(to, to, fromMail, subject, htmlBody, nil, nil, config, enableComplianceFeatures)
-}
-
-// allows for sending an email with attachments and differing MIME/SMTP recipients
-func SendMailUsingConfigAdvanced(mimeTo, smtpTo string, from mail.Address, subject, htmlBody string, attachments []*model.FileInfo, mimeHeaders map[string]string, config *model.Config, enableComplianceFeatures bool) *model.AppError {
-	if !config.EmailSettings.SendEmailNotifications || len(config.EmailSettings.SMTPServer) == 0 {
-		return nil
-	}
-
-	conn, err := ConnectToSMTPServer(config)
-	if err != nil {
-		return err
-	}
-	defer conn.Close()
-
-	c, err := NewSMTPClient(conn, config)
-	if err != nil {
-		return err
-	}
-	defer c.Quit()
-	defer c.Close()
-
-	fileBackend, err := NewFileBackend(&config.FileSettings, enableComplianceFeatures)
-	if err != nil {
-		return err
-	}
-
-	return SendMail(c, mimeTo, smtpTo, from, subject, htmlBody, attachments, mimeHeaders, fileBackend, time.Now())
-}
-
-func SendMail(c *smtp.Client, mimeTo, smtpTo string, from mail.Address, subject, htmlBody string, attachments []*model.FileInfo, mimeHeaders map[string]string, fileBackend FileBackend, date time.Time) *model.AppError {
-	mlog.Debug(fmt.Sprintf("sending mail to %v with subject of '%v'", smtpTo, subject))
-
-	htmlMessage := "\r\n<html><body>" + htmlBody + "</body></html>"
-
-	txtBody, err := html2text.FromString(htmlBody)
-	if err != nil {
-		mlog.Warn(fmt.Sprint(err))
-		txtBody = ""
-	}
-
-	headers := map[string][]string{
-		"From":                      {from.String()},
-		"To":                        {mimeTo},
-		"Subject":                   {encodeRFC2047Word(subject)},
-		"Content-Transfer-Encoding": {"8bit"},
-		"Auto-Submitted":            {"auto-generated"},
-		"Precedence":                {"bulk"},
-	}
-	for k, v := range mimeHeaders {
-		headers[k] = []string{encodeRFC2047Word(v)}
-	}
-
-	m := gomail.NewMessage(gomail.SetCharset("UTF-8"))
-	m.SetHeaders(headers)
-	m.SetDateHeader("Date", date)
-	m.SetBody("text/plain", txtBody)
-	m.AddAlternative("text/html", htmlMessage)
-
-	for _, fileInfo := range attachments {
-		bytes, err := fileBackend.ReadFile(fileInfo.Path)
-		if err != nil {
-			return err
-		}
-
-		m.Attach(fileInfo.Name, gomail.SetCopyFunc(func(writer io.Writer) error {
-			if _, err := writer.Write(bytes); err != nil {
-				return model.NewAppError("SendMail", "utils.mail.sendMail.attachments.write_error", nil, err.Error(), http.StatusInternalServerError)
-			}
-			return nil
-		}))
-	}
-
-	if err := c.Mail(from.Address); err != nil {
-		return model.NewAppError("SendMail", "utils.mail.send_mail.from_address.app_error", nil, err.Error(), http.StatusInternalServerError)
-	}
-
-	if err := c.Rcpt(smtpTo); err != nil {
-		return model.NewAppError("SendMail", "utils.mail.send_mail.to_address.app_error", nil, err.Error(), http.StatusInternalServerError)
-	}
-
-	w, err := c.Data()
-	if err != nil {
-		return model.NewAppError("SendMail", "utils.mail.send_mail.msg_data.app_error", nil, err.Error(), http.StatusInternalServerError)
-	}
-
-	_, err = m.WriteTo(w)
-	if err != nil {
-		return model.NewAppError("SendMail", "utils.mail.send_mail.msg.app_error", nil, err.Error(), http.StatusInternalServerError)
-	}
-	err = w.Close()
-	if err != nil {
-		return model.NewAppError("SendMail", "utils.mail.send_mail.close.app_error", nil, err.Error(), http.StatusInternalServerError)
-	}
-
-	return nil
-}
diff --git a/utils/mail_test.go b/utils/mail_test.go
deleted file mode 100644
index 4cb2d7594..000000000
--- a/utils/mail_test.go
+++ /dev/null
@@ -1,288 +0,0 @@
-// Copyright (c) 2017-present Mattermost, Inc. All Rights Reserved.
-// See License.txt for license information.
-
-package utils
-
-import (
-	"bytes"
-	"fmt"
-	"strings"
-	"testing"
-
-	"net/mail"
-	"net/smtp"
-
-	"github.com/mattermost/mattermost-server/model"
-	"github.com/stretchr/testify/assert"
-	"github.com/stretchr/testify/require"
-)
-
-func TestMailConnectionFromConfig(t *testing.T) {
-	cfg, _, _, err := LoadConfig("config.json")
-	require.Nil(t, err)
-
-	if conn, err := ConnectToSMTPServer(cfg); err != nil {
-		t.Log(err)
-		t.Fatal("Should connect to the STMP Server")
-	} else {
-		if _, err1 := NewSMTPClient(conn, cfg); err1 != nil {
-			t.Log(err)
-			t.Fatal("Should get new smtp client")
-		}
-	}
-
-	cfg.EmailSettings.SMTPServer = "wrongServer"
-	cfg.EmailSettings.SMTPPort = "553"
-
-	if _, err := ConnectToSMTPServer(cfg); err == nil {
-		t.Log(err)
-		t.Fatal("Should not to the STMP Server")
-	}
-}
-
-func TestMailConnectionAdvanced(t *testing.T) {
-	cfg, _, _, err := LoadConfig("config.json")
-	require.Nil(t, err)
-
-	if conn, err := ConnectToSMTPServerAdvanced(
-		&SmtpConnectionInfo{
-			ConnectionSecurity:   cfg.EmailSettings.ConnectionSecurity,
-			SkipCertVerification: *cfg.EmailSettings.SkipServerCertificateVerification,
-			SmtpServerName:       cfg.EmailSettings.SMTPServer,
-			SmtpServerHost:       cfg.EmailSettings.SMTPServer,
-			SmtpPort:             cfg.EmailSettings.SMTPPort,
-		},
-	); err != nil {
-		t.Log(err)
-		t.Fatal("Should connect to the STMP Server")
-	} else {
-		if _, err1 := NewSMTPClientAdvanced(
-			conn,
-			GetHostnameFromSiteURL(*cfg.ServiceSettings.SiteURL),
-			&SmtpConnectionInfo{
-				ConnectionSecurity:   cfg.EmailSettings.ConnectionSecurity,
-				SkipCertVerification: *cfg.EmailSettings.SkipServerCertificateVerification,
-				SmtpServerName:       cfg.EmailSettings.SMTPServer,
-				SmtpServerHost:       cfg.EmailSettings.SMTPServer,
-				SmtpPort:             cfg.EmailSettings.SMTPPort,
-				Auth:                 *cfg.EmailSettings.EnableSMTPAuth,
-				SmtpUsername:         cfg.EmailSettings.SMTPUsername,
-				SmtpPassword:         cfg.EmailSettings.SMTPPassword,
-			},
-		); err1 != nil {
-			t.Log(err)
-			t.Fatal("Should get new smtp client")
-		}
-	}
-
-	if _, err := ConnectToSMTPServerAdvanced(
-		&SmtpConnectionInfo{
-			ConnectionSecurity:   cfg.EmailSettings.ConnectionSecurity,
-			SkipCertVerification: *cfg.EmailSettings.SkipServerCertificateVerification,
-			SmtpServerName:       "wrongServer",
-			SmtpServerHost:       "wrongServer",
-			SmtpPort:             "553",
-		},
-	); err == nil {
-		t.Log(err)
-		t.Fatal("Should not to the STMP Server")
-	}
-
-}
-
-func TestSendMailUsingConfig(t *testing.T) {
-	cfg, _, _, err := LoadConfig("config.json")
-	require.Nil(t, err)
-	T = GetUserTranslations("en")
-
-	var emailTo = "test@example.com"
-	var emailSubject = "Testing this email"
-	var emailBody = "This is a test from autobot"
-
-	//Delete all the messages before check the sample email
-	DeleteMailBox(emailTo)
-
-	if err := SendMailUsingConfig(emailTo, emailSubject, emailBody, cfg, true); err != nil {
-		t.Log(err)
-		t.Fatal("Should connect to the STMP Server")
-	} else {
-		//Check if the email was send to the right email address
-		var resultsMailbox JSONMessageHeaderInbucket
-		err := RetryInbucket(5, func() error {
-			var err error
-			resultsMailbox, err = GetMailBox(emailTo)
-			return err
-		})
-		if err != nil {
-			t.Log(err)
-			t.Log("No email was received, maybe due load on the server. Disabling this verification")
-		}
-		if err == nil && len(resultsMailbox) > 0 {
-			if !strings.ContainsAny(resultsMailbox[0].To[0], emailTo) {
-				t.Fatal("Wrong To recipient")
-			} else {
-				if resultsEmail, err := GetMessageFromMailbox(emailTo, resultsMailbox[0].ID); err == nil {
-					if !strings.Contains(resultsEmail.Body.Text, emailBody) {
-						t.Log(resultsEmail.Body.Text)
-						t.Fatal("Received message")
-					}
-				}
-			}
-		}
-	}
-}
-
-func TestSendMailUsingConfigAdvanced(t *testing.T) {
-	cfg, _, _, err := LoadConfig("config.json")
-	require.Nil(t, err)
-	T = GetUserTranslations("en")
-
-	var mimeTo = "test@example.com"
-	var smtpTo = "test2@example.com"
-	var from = mail.Address{Name: "Nobody", Address: "nobody@mattermost.com"}
-	var emailSubject = "Testing this email"
-	var emailBody = "This is a test from autobot"
-
-	//Delete all the messages before check the sample email
-	DeleteMailBox(smtpTo)
-
-	fileBackend, err := NewFileBackend(&cfg.FileSettings, true)
-	assert.Nil(t, err)
-
-	// create two files with the same name that will both be attached to the email
-	fileName := "file.txt"
-	filePath1 := fmt.Sprintf("test1/%s", fileName)
-	filePath2 := fmt.Sprintf("test2/%s", fileName)
-	fileContents1 := []byte("hello world")
-	fileContents2 := []byte("foo bar")
-	_, err = fileBackend.WriteFile(bytes.NewReader(fileContents1), filePath1)
-	assert.Nil(t, err)
-	_, err = fileBackend.WriteFile(bytes.NewReader(fileContents2), filePath2)
-	assert.Nil(t, err)
-	defer fileBackend.RemoveFile(filePath1)
-	defer fileBackend.RemoveFile(filePath2)
-
-	attachments := make([]*model.FileInfo, 2)
-	attachments[0] = &model.FileInfo{
-		Name: fileName,
-		Path: filePath1,
-	}
-	attachments[1] = &model.FileInfo{
-		Name: fileName,
-		Path: filePath2,
-	}
-
-	headers := make(map[string]string)
-	headers["TestHeader"] = "TestValue"
-
-	if err := SendMailUsingConfigAdvanced(mimeTo, smtpTo, from, emailSubject, emailBody, attachments, headers, cfg, true); err != nil {
-		t.Log(err)
-		t.Fatal("Should connect to the STMP Server")
-	} else {
-		//Check if the email was send to the right email address
-		var resultsMailbox JSONMessageHeaderInbucket
-		err := RetryInbucket(5, func() error {
-			var err error
-			resultsMailbox, err = GetMailBox(smtpTo)
-			return err
-		})
-		if err != nil {
-			t.Log(err)
-			t.Fatal("No emails found for address " + smtpTo)
-		}
-		if err == nil && len(resultsMailbox) > 0 {
-			if !strings.ContainsAny(resultsMailbox[0].To[0], smtpTo) {
-				t.Fatal("Wrong To recipient")
-			} else {
-				if resultsEmail, err := GetMessageFromMailbox(smtpTo, resultsMailbox[0].ID); err == nil {
-					if !strings.Contains(resultsEmail.Body.Text, emailBody) {
-						t.Log(resultsEmail.Body.Text)
-						t.Fatal("Received message")
-					}
-
-					// verify that the To header of the email message is set to the MIME recipient, even though we got it out of the SMTP recipient's email inbox
-					assert.Equal(t, mimeTo, resultsEmail.Header["To"][0])
-
-					// verify that the MIME from address is correct - unfortunately, we can't verify the SMTP from address
-					assert.Equal(t, from.String(), resultsEmail.Header["From"][0])
-
-					// check that the custom mime headers came through - header case seems to get mutated
-					assert.Equal(t, "TestValue", resultsEmail.Header["Testheader"][0])
-
-					// ensure that the attachments were successfully sent
-					assert.Len(t, resultsEmail.Attachments, 2)
-					assert.Equal(t, fileName, resultsEmail.Attachments[0].Filename)
-					assert.Equal(t, fileName, resultsEmail.Attachments[1].Filename)
-					attachment1 := string(resultsEmail.Attachments[0].Bytes)
-					attachment2 := string(resultsEmail.Attachments[1].Bytes)
-					if attachment1 == string(fileContents1) {
-						assert.Equal(t, attachment2, string(fileContents2))
-					} else if attachment1 == string(fileContents2) {
-						assert.Equal(t, attachment2, string(fileContents1))
-					} else {
-						assert.Fail(t, "Unrecognized attachment contents")
-					}
-				}
-			}
-		}
-	}
-}
-
-func TestAuthMethods(t *testing.T) {
-	auth := &authChooser{
-		connectionInfo: &SmtpConnectionInfo{
-			SmtpUsername:   "test",
-			SmtpPassword:   "fakepass",
-			SmtpServerName: "fakeserver",
-			SmtpServerHost: "fakeserver",
-			SmtpPort:       "25",
-		},
-	}
-	tests := []struct {
-		desc   string
-		server *smtp.ServerInfo
-		err    string
-	}{
-		{
-			desc:   "auth PLAIN success",
-			server: &smtp.ServerInfo{Name: "fakeserver:25", Auth: []string{"PLAIN"}, TLS: true},
-		},
-		{
-			desc:   "auth PLAIN unencrypted connection fail",
-			server: &smtp.ServerInfo{Name: "fakeserver:25", Auth: []string{"PLAIN"}, TLS: false},
-			err:    "unencrypted connection",
-		},
-		{
-			desc:   "auth PLAIN wrong host name",
-			server: &smtp.ServerInfo{Name: "wrongServer:999", Auth: []string{"PLAIN"}, TLS: true},
-			err:    "wrong host name",
-		},
-		{
-			desc:   "auth LOGIN success",
-			server: &smtp.ServerInfo{Name: "fakeserver:25", Auth: []string{"LOGIN"}, TLS: true},
-		},
-		{
-			desc:   "auth LOGIN unencrypted connection fail",
-			server: &smtp.ServerInfo{Name: "wrongServer:999", Auth: []string{"LOGIN"}, TLS: true},
-			err:    "wrong host name",
-		},
-		{
-			desc:   "auth LOGIN wrong host name",
-			server: &smtp.ServerInfo{Name: "fakeserver:25", Auth: []string{"LOGIN"}, TLS: false},
-			err:    "unencrypted connection",
-		},
-	}
-
-	for i, test := range tests {
-		t.Run(test.desc, func(t *testing.T) {
-			_, _, err := auth.Start(test.server)
-			got := ""
-			if err != nil {
-				got = err.Error()
-			}
-			if got != test.err {
-				t.Errorf("%d. got error = %q; want %q", i, got, test.err)
-			}
-		})
-	}
-}