diff --git a/code/rest/matter_chunk_dao.go b/code/rest/matter_chunk_dao.go
deleted file mode 100644
index 83d32b9..0000000
--- a/code/rest/matter_chunk_dao.go
+++ /dev/null
@@ -1,14 +0,0 @@
-package rest
-
-type MatterChunkDao struct {
-	BaseDao
-}
-
-func (this *MatterChunkDao) Init() {
-	this.BaseDao.Init()
-}
-
-// 通过md5值来查找记录
-func (this *MatterChunkDao) FindByMd5(uuid string) *MatterChunk {
-
-}
diff --git a/code/rest/matter_chunk_model.go b/code/rest/matter_chunk_model.go
deleted file mode 100644
index ee8217d..0000000
--- a/code/rest/matter_chunk_model.go
+++ /dev/null
@@ -1,32 +0,0 @@
-package rest
-
-import (
-	"fmt"
-	"time"
-
-	"github.com/eyebluecn/tank/code/core"
-)
-
-type MatterChunk struct {
-	Uuid       string    `json:"uuid" gorm:"type:char(36);primary_key;unique"`
-	Sort       int64     `json:"sort" gorm:"type:bigint(20) not null"`
-	UpdateTime time.Time `json:"updateTime" gorm:"type:timestamp not null;default:CURRENT_TIMESTAMP"`
-	CreateTime time.Time `json:"createTime" gorm:"type:timestamp not null;default:'2018-01-01 00:00:00'"`
-	UserUuid   string    `json:"userUuid" gorm:"type:char(36);index:idx_matter_uu"`
-	Username   string    `json:"username" gorm:"type:varchar(45) not null"`
-	Md5        string    `json:"md5" gorm:"type:varchar(45)"`
-	Index      string    `json:"sort" gorm:"type:bigint(20) not null"`
-}
-
-// get matterChunk's absolute path. the Path property is relative path in db.
-func (this *MatterChunk) AbsolutePath() string {
-	return GetUserMatterChunkDir(this.Username)
-}
-
-//get user's matterChunk absolute path
-func GetUserMatterChunkDir(username string) (rootDirPath string) {
-	// FIXME dirPath
-	dirPath := fmt.Sprintf("%s/%s/%s", core.CONFIG.MatterPath(), username, MATTER_ROOT)
-
-	return dirPath
-}
diff --git a/code/rest/matter_controller.go b/code/rest/matter_controller.go
index 686d1db..09fad2b 100644
--- a/code/rest/matter_controller.go
+++ b/code/rest/matter_controller.go
@@ -1,14 +1,13 @@
 package rest
 
 import (
-	"net/http"
-	"strconv"
-	"strings"
-
 	"github.com/eyebluecn/tank/code/core"
 	"github.com/eyebluecn/tank/code/tool/builder"
 	"github.com/eyebluecn/tank/code/tool/i18n"
 	"github.com/eyebluecn/tank/code/tool/result"
+	"net/http"
+	"strconv"
+	"strings"
 )
 
 type MatterController struct {
@@ -232,32 +231,6 @@ func (this *MatterController) CreateDirectory(writer http.ResponseWriter, reques
 	return this.Success(matter)
 }
 
-// 检查已上传的chunk索引列表，用来断点续传
-func (this *MatterController) CheckUploadedChunkIndexes(writer http.ResponseWriter, request *http.Request) *result.WebResult {
-
-}
-
-// 上传chunk
-func (this *MatterController) UploadChunk(writer http.ResponseWriter, request *http.Request) *result.WebResult {
-	// 再次确认一下是否已上传
-	index := request.FormValue("index")
-	md5 := request.FormValue("md5")
-	data := request.FormValue("data")
-
-	user := this.checkUser(request)
-
-	// 去暂存表里查有无记录
-	err = request.ParseMultipartForm(32 << 20)
-	this.PanicError(err)
-
-	// this.matterDao.CheckWithRootByUuid(user)
-}
-
-// 合并chunk
-func (this *MatterController) MergeChunkList(writer http.ResponseWriter, request *http.Request) *result.WebResult {
-
-}
-
 func (this *MatterController) Upload(writer http.ResponseWriter, request *http.Request) *result.WebResult {
 
 	puuid := request.FormValue("puuid")
@@ -295,7 +268,7 @@ func (this *MatterController) Upload(writer http.ResponseWriter, request *http.R
 	return this.Success(matter)
 }
 
-//crawl a file by url.
+// crawl a file by url.
 func (this *MatterController) Crawl(writer http.ResponseWriter, request *http.Request) *result.WebResult {
 
 	url := request.FormValue("url")
@@ -319,7 +292,7 @@ func (this *MatterController) Crawl(writer http.ResponseWriter, request *http.Re
 	return this.Success(matter)
 }
 
-//soft delete.
+// soft delete.
 func (this *MatterController) SoftDelete(writer http.ResponseWriter, request *http.Request) *result.WebResult {
 
 	uuid := request.FormValue("uuid")
@@ -373,7 +346,7 @@ func (this *MatterController) SoftDeleteBatch(writer http.ResponseWriter, reques
 	return this.Success("OK")
 }
 
-//recovery delete.
+// recovery delete.
 func (this *MatterController) Recovery(writer http.ResponseWriter, request *http.Request) *result.WebResult {
 
 	uuid := request.FormValue("uuid")
@@ -393,7 +366,7 @@ func (this *MatterController) Recovery(writer http.ResponseWriter, request *http
 	return this.Success("OK")
 }
 
-//recovery batch.
+// recovery batch.
 func (this *MatterController) RecoveryBatch(writer http.ResponseWriter, request *http.Request) *result.WebResult {
 
 	uuids := request.FormValue("uuids")
@@ -424,7 +397,7 @@ func (this *MatterController) RecoveryBatch(writer http.ResponseWriter, request
 	return this.Success("OK")
 }
 
-//complete delete.
+// complete delete.
 func (this *MatterController) Delete(writer http.ResponseWriter, request *http.Request) *result.WebResult {
 
 	uuid := request.FormValue("uuid")
@@ -478,7 +451,7 @@ func (this *MatterController) DeleteBatch(writer http.ResponseWriter, request *h
 	return this.Success("OK")
 }
 
-//manual clean expired deleted matters.
+// manual clean expired deleted matters.
 func (this *MatterController) CleanExpiredDeletedMatters(writer http.ResponseWriter, request *http.Request) *result.WebResult {
 
 	this.matterService.CleanExpiredDeletedMatters()
@@ -591,7 +564,7 @@ func (this *MatterController) Move(writer http.ResponseWriter, request *http.Req
 	return this.Success(nil)
 }
 
-//mirror local files to EyeblueTank
+// mirror local files to EyeblueTank
 func (this *MatterController) Mirror(writer http.ResponseWriter, request *http.Request) *result.WebResult {
 
 	srcPath := request.FormValue("srcPath")
@@ -615,7 +588,7 @@ func (this *MatterController) Mirror(writer http.ResponseWriter, request *http.R
 
 }
 
-//download zip.
+// download zip.
 func (this *MatterController) Zip(writer http.ResponseWriter, request *http.Request) *result.WebResult {
 
 	uuids := request.FormValue("uuids")