Merge pull request #1763 from benburkert/non-s3-region

support unofficial S3 regions

api/file.go

@@ -522,7 +522,7 @@ func writeFile(f []byte, path string) *model.AppError {
 		auth.AccessKey = utils.Cfg.FileSettings.AmazonS3AccessKeyId
 		auth.SecretKey = utils.Cfg.FileSettings.AmazonS3SecretAccessKey
 
-		s := s3.New(auth, aws.Regions[utils.Cfg.FileSettings.AmazonS3Region])
+		s := s3.New(auth, awsRegion())
 		bucket := s.Bucket(utils.Cfg.FileSettings.AmazonS3Bucket)
 
 		ext := filepath.Ext(path)
@@ -562,7 +562,7 @@ func readFile(path string) ([]byte, *model.AppError) {
 		auth.AccessKey = utils.Cfg.FileSettings.AmazonS3AccessKeyId
 		auth.SecretKey = utils.Cfg.FileSettings.AmazonS3SecretAccessKey
 
-		s := s3.New(auth, aws.Regions[utils.Cfg.FileSettings.AmazonS3Region])
+		s := s3.New(auth, awsRegion())
 		bucket := s.Bucket(utils.Cfg.FileSettings.AmazonS3Bucket)
 
 		// try to get the file from S3 with some basic retry logic
@@ -613,3 +613,17 @@ func openFileWriteStream(path string) (io.Writer, *model.AppError) {
 func closeFileWriteStream(file io.Writer) {
 	file.(*os.File).Close()
 }
+
+func awsRegion() aws.Region {
+	if region, ok := aws.Regions[utils.Cfg.FileSettings.AmazonS3Region]; ok {
+		return region
+	}
+
+	return aws.Region{
+		Name:                 utils.Cfg.FileSettings.AmazonS3Region,
+		S3Endpoint:           utils.Cfg.FileSettings.AmazonS3Endpoint,
+		S3BucketEndpoint:     utils.Cfg.FileSettings.AmazonS3BucketEndpoint,
+		S3LocationConstraint: *utils.Cfg.FileSettings.AmazonS3LocationConstraint,
+		S3LowercaseBucket:    *utils.Cfg.FileSettings.AmazonS3LowercaseBucket,
+	}
+}

model/config.go

@@ -83,6 +83,10 @@ type FileSettings struct {
 	AmazonS3SecretAccessKey    string
 	AmazonS3Bucket             string
 	AmazonS3Region             string
+	AmazonS3Endpoint           string
+	AmazonS3BucketEndpoint     string
+	AmazonS3LocationConstraint *bool
+	AmazonS3LowercaseBucket    *bool
 }
 
 type EmailSettings struct {
@@ -210,6 +214,16 @@ func (o *Config) SetDefaults() {
 		o.FileSettings.PublicLinkSalt = NewRandomString(32)
 	}
 
+	if o.FileSettings.AmazonS3LocationConstraint == nil {
+		o.FileSettings.AmazonS3LocationConstraint = new(bool)
+		*o.FileSettings.AmazonS3LocationConstraint = false
+	}
+
+	if o.FileSettings.AmazonS3LowercaseBucket == nil {
+		o.FileSettings.AmazonS3LowercaseBucket = new(bool)
+		*o.FileSettings.AmazonS3LowercaseBucket = false
+	}
+
 	if len(o.EmailSettings.InviteSalt) == 0 {
 		o.EmailSettings.InviteSalt = NewRandomString(32)
 	}