Initial cloud-services repo - gateway service + pkg modules

pkg/common/file_key.go

@@ -0,0 +1,52 @@
+package common
+
+import (
+	b64 "encoding/base64"
+
+	"fiskerinc.com/modules/common/dbbasemodel"
+)
+
+type FileKey struct {
+	FileID string `pg:",pk" validate:"required,len=16,hexadecimal"`
+	Key    []byte `pg:",notnull" validate:"required"`
+	Auth   []byte `pg:",notnull" validate:"required"`
+	Nonce  []byte `pg:",notnull" validate:"required"`
+	Error  string `pg:"-"`
+	dbbasemodel.DBModelBase
+}
+
+type FileKeysRequest struct {
+	FileIDs []string `json:"file_ids" validate:"required,dive,len=16,hexadecimal"`
+}
+
+type FileKeyResponse struct {
+	FileID string `json:"file_id" redis:"file_id" validate:"required,len=16,hexadecimal"`
+	Key    string `json:"key,omitempty" redis:"key,omitempty" validate:"required"`
+	Auth   string `json:"auth,omitempty" redis:"auth,omitempty" validate:"required"`
+	Nonce  string `json:"nonce,omitempty" redis:"nonce,omitempty" validate:"required"`
+	Error  string `json:"error,omitempty" redis:"error,omitempty"`
+}
+
+// Turns the FileKey into a FileKeyResponse
+func (fkr *FileKeyResponse) Apply(key *FileKey) {
+	fkr.FileID = key.FileID
+	fkr.Key = b64.StdEncoding.EncodeToString(key.Key)
+	fkr.Auth = b64.StdEncoding.EncodeToString(key.Auth)
+	fkr.Nonce = b64.StdEncoding.EncodeToString(key.Nonce)
+}
+
+// Turns a FileKeyResponse into a file key
+func (key *FileKey) Apply(fkr *FileKeyResponse) (err error) {
+	key.FileID = fkr.FileID
+	key.Error = fkr.Error
+	key.Key, err = b64.StdEncoding.DecodeString(fkr.Key)
+	if err != nil {
+		return err
+	}
+	key.Auth, err = b64.StdEncoding.DecodeString(fkr.Auth)
+	if err != nil {
+		return err
+	}
+	key.Nonce, err = b64.StdEncoding.DecodeString(fkr.Nonce)
+	return err
+}