Merge pull request #224 from tnextday/feature/chunked-file-support

Feature/chunked file support

.gitignore

@@ -1,3 +1,77 @@
 go/weed/.goxc*
 tags
 *.swp
+### OSX template
+.DS_Store
+.AppleDouble
+.LSOverride
+
+# Icon must end with two \r
+Icon
+
+# Thumbnails
+._*
+
+# Files that might appear in the root of a volume
+.DocumentRevisions-V100
+.fseventsd
+.Spotlight-V100
+.TemporaryItems
+.Trashes
+.VolumeIcon.icns
+
+# Directories potentially created on remote AFP share
+.AppleDB
+.AppleDesktop
+Network Trash Folder
+Temporary Items
+.apdisk
+### JetBrains template
+# Covers JetBrains IDEs: IntelliJ, RubyMine, PhpStorm, AppCode, PyCharm, CLion, Android Studio
+
+*.iml
+
+## Directory-based project format:
+.idea/
+# if you remove the above rule, at least ignore the following:
+
+# User-specific stuff:
+# .idea/workspace.xml
+# .idea/tasks.xml
+# .idea/dictionaries
+
+# Sensitive or high-churn files:
+# .idea/dataSources.ids
+# .idea/dataSources.xml
+# .idea/sqlDataSources.xml
+# .idea/dynamic.xml
+# .idea/uiDesigner.xml
+
+# Gradle:
+# .idea/gradle.xml
+# .idea/libraries
+
+# Mongo Explorer plugin:
+# .idea/mongoSettings.xml
+
+## File-based project format:
+*.ipr
+*.iws
+
+## Plugin-specific files:
+
+# IntelliJ
+/out/
+
+# mpeltonen/sbt-idea plugin
+.idea_modules/
+
+# JIRA plugin
+atlassian-ide-plugin.xml
+
+# Crashlytics plugin (for Android Studio and IntelliJ)
+com_crashlytics_export_strings.xml
+crashlytics.properties
+crashlytics-build.properties
+
+test_data

Makefile

@@ -1,11 +1,22 @@
+BINARY = weed
 
-.clean:
-	go clean -i -v ./go/weed/
+GO_FLAGS = #-v
+SOURCE_DIR = ./go/weed/
 
-.deps:
-	go get -d ./go/weed/
+all: build
 
-.build: .deps
-	go build -v ./go/weed/
+.PHONY : clean deps build linux
 
-all: .build
+clean:
+	go clean -i $(GO_FLAGS) $(SOURCE_DIR)
+	rm -f $(BINARY)
+
+deps:
+	go get $(GO_FLAGS) -d $(SOURCE_DIR)
+
+build: deps
+	go build $(GO_FLAGS) -o $(BINARY) $(SOURCE_DIR)
+
+linux: deps
+	mkdir -p linux
+	GOOS=linux GOARCH=amd64 go build $(GO_FLAGS) -o linux/$(BINARY) $(SOURCE_DIR)

go/operation/chunked_file.go

@@ -0,0 +1,213 @@
+package operation
+
+import (
+	"encoding/json"
+	"errors"
+	"fmt"
+	"io"
+	"net/http"
+	"sort"
+
+	"sync"
+
+	"github.com/chrislusf/seaweedfs/go/glog"
+	"github.com/chrislusf/seaweedfs/go/util"
+)
+
+var (
+	// when the remote server does not allow range requests (Accept-Ranges was not set)
+	ErrRangeRequestsNotSupported = errors.New("Range requests are not supported by the remote server")
+	// ErrInvalidRange is returned by Read when trying to read past the end of the file
+	ErrInvalidRange = errors.New("Invalid range")
+)
+
+type ChunkInfo struct {
+	Fid    string `json:"fid"`
+	Offset int64  `json:"offset"`
+	Size   int64  `json:"size"`
+}
+
+type ChunkList []*ChunkInfo
+
+type ChunkManifest struct {
+	Name   string    `json:"name,omitempty"`
+	Mime   string    `json:"mime,omitempty"`
+	Size   int64     `json:"size,omitempty"`
+	Chunks ChunkList `json:"chunks,omitempty"`
+}
+
+// seekable chunked file reader
+type ChunkedFileReader struct {
+	Manifest *ChunkManifest
+	Master   string
+	pos      int64
+	pr       *io.PipeReader
+	pw       *io.PipeWriter
+	mutex    sync.Mutex
+}
+
+func (s ChunkList) Len() int           { return len(s) }
+func (s ChunkList) Less(i, j int) bool { return s[i].Offset < s[j].Offset }
+func (s ChunkList) Swap(i, j int)      { s[i], s[j] = s[j], s[i] }
+
+func LoadChunkManifest(buffer []byte, isGzipped bool) (*ChunkManifest, error) {
+	if isGzipped {
+		var err error
+		if buffer, err = UnGzipData(buffer); err != nil {
+			return nil, err
+		}
+	}
+	cm := ChunkManifest{}
+	if e := json.Unmarshal(buffer, &cm); e != nil {
+		return nil, e
+	}
+	sort.Sort(cm.Chunks)
+	return &cm, nil
+}
+
+func (cm *ChunkManifest) Marshal() ([]byte, error) {
+	return json.Marshal(cm)
+}
+
+func (cm *ChunkManifest) DeleteChunks(master string) error {
+	deleteError := 0
+	for _, ci := range cm.Chunks {
+		if e := DeleteFile(master, ci.Fid, ""); e != nil {
+			deleteError++
+			glog.V(0).Infof("Delete %s error: %s, master: %s", ci.Fid, e.Error(), master)
+		}
+	}
+	if deleteError > 0 {
+		return errors.New("Not all chunks deleted.")
+	}
+	return nil
+}
+
+func readChunkNeedle(fileUrl string, w io.Writer, offset int64) (written int64, e error) {
+	req, err := http.NewRequest("GET", fileUrl, nil)
+	if err != nil {
+		return written, err
+	}
+	if offset > 0 {
+		req.Header.Set("Range", fmt.Sprintf("bytes=%d-", offset))
+	}
+
+	resp, err := util.Do(req)
+	if err != nil {
+		return written, err
+	}
+	defer resp.Body.Close()
+
+	switch resp.StatusCode {
+	case http.StatusRequestedRangeNotSatisfiable:
+		return written, ErrInvalidRange
+	case http.StatusOK:
+		if offset > 0 {
+			return written, ErrRangeRequestsNotSupported
+		}
+	case http.StatusPartialContent:
+		break
+	default:
+		return written, fmt.Errorf("Read chunk needle error: [%d] %s", resp.StatusCode, fileUrl)
+
+	}
+	return io.Copy(w, resp.Body)
+}
+
+func (cf *ChunkedFileReader) Seek(offset int64, whence int) (int64, error) {
+	var err error
+	switch whence {
+	case 0:
+	case 1:
+		offset += cf.pos
+	case 2:
+		offset = cf.Manifest.Size - offset
+	}
+	if offset > cf.Manifest.Size {
+		err = ErrInvalidRange
+	}
+	if cf.pos != offset {
+		cf.Close()
+	}
+	cf.pos = offset
+	return cf.pos, err
+}
+
+func (cf *ChunkedFileReader) WriteTo(w io.Writer) (n int64, err error) {
+	cm := cf.Manifest
+	chunkIndex := -1
+	chunkStartOffset := int64(0)
+	for i, ci := range cm.Chunks {
+		if cf.pos >= ci.Offset && cf.pos < ci.Offset+ci.Size {
+			chunkIndex = i
+			chunkStartOffset = cf.pos - ci.Offset
+			break
+		}
+	}
+	if chunkIndex < 0 {
+		return n, ErrInvalidRange
+	}
+	for ; chunkIndex < cm.Chunks.Len(); chunkIndex++ {
+		ci := cm.Chunks[chunkIndex]
+		// if we need read date from local volume server first?
+		fileUrl, lookupError := LookupFileId(cf.Master, ci.Fid)
+		if lookupError != nil {
+			return n, lookupError
+		}
+		if wn, e := readChunkNeedle(fileUrl, w, chunkStartOffset); e != nil {
+			return n, e
+		} else {
+			n += wn
+			cf.pos += wn
+		}
+
+		chunkStartOffset = 0
+	}
+	return n, nil
+}
+
+func (cf *ChunkedFileReader) ReadAt(p []byte, off int64) (n int, err error) {
+	cf.Seek(off, 0)
+	return cf.Read(p)
+}
+
+func (cf *ChunkedFileReader) Read(p []byte) (int, error) {
+	return cf.getPipeReader().Read(p)
+}
+
+func (cf *ChunkedFileReader) Close() (e error) {
+	cf.mutex.Lock()
+	defer cf.mutex.Unlock()
+	return cf.closePipe()
+}
+
+func (cf *ChunkedFileReader) closePipe() (e error) {
+	if cf.pr != nil {
+		if err := cf.pr.Close(); err != nil {
+			e = err
+		}
+	}
+	cf.pr = nil
+	if cf.pw != nil {
+		if err := cf.pw.Close(); err != nil {
+			e = err
+		}
+	}
+	cf.pw = nil
+	return e
+}
+
+func (cf *ChunkedFileReader) getPipeReader() io.Reader {
+	cf.mutex.Lock()
+	defer cf.mutex.Unlock()
+	if cf.pr != nil && cf.pw != nil {
+		return cf.pr
+	}
+	cf.closePipe()
+	cf.pr, cf.pw = io.Pipe()
+	go func(pw *io.PipeWriter) {
+		_, e := cf.WriteTo(pw)
+		pw.CloseWithError(e)
+	}(cf.pw)
+	return cf.pr
+}

go/storage/compress.go → go/operation/compress.go

@@ -1,4 +1,4 @@
-package storage
+package operation
 
 import (
 	"bytes"

go/operation/delete_content.go

@@ -7,14 +7,17 @@ import (
 	"strings"
 	"sync"
 
+	"net/http"
+
 	"github.com/chrislusf/seaweedfs/go/security"
 	"github.com/chrislusf/seaweedfs/go/util"
 )
 
 type DeleteResult struct {
-	Fid   string `json:"fid"`
-	Size  int    `json:"size"`
-	Error string `json:"error,omitempty"`
+	Fid    string `json:"fid"`
+	Size   int    `json:"size"`
+	Status int    `json:"status"`
+	Error  string `json:"error,omitempty"`
 }
 
 func DeleteFile(master string, fileId string, jwt security.EncodedJwt) error {
@@ -45,7 +48,11 @@ func DeleteFiles(master string, fileIds []string) (*DeleteFilesResult, error) {
 	for _, fileId := range fileIds {
 		vid, _, err := ParseFileId(fileId)
 		if err != nil {
-			ret.Results = append(ret.Results, DeleteResult{Fid: vid, Error: err.Error()})
+			ret.Results = append(ret.Results, DeleteResult{
+				Fid:    vid,
+				Status: http.StatusBadRequest,
+				Error:  err.Error()},
+			)
 			continue
 		}
 		if _, ok := vid_to_fileIds[vid]; !ok {
@@ -76,6 +83,7 @@ func DeleteFiles(master string, fileIds []string) (*DeleteFilesResult, error) {
 	}
 
 	var wg sync.WaitGroup
+
 	for server, fidList := range server_to_fileIds {
 		wg.Add(1)
 		go func(server string, fidList []string) {

go/operation/submit.go

@@ -9,6 +9,8 @@ import (
 	"strconv"
 	"strings"
 
+	"net/url"
+
 	"github.com/chrislusf/seaweedfs/go/glog"
 	"github.com/chrislusf/seaweedfs/go/security"
 )
@@ -114,25 +116,44 @@ func (fi FilePart) Upload(maxMB int, master string, secret security.Secret) (ret
 	if closer, ok := fi.Reader.(io.Closer); ok {
 		defer closer.Close()
 	}
+	baseName := path.Base(fi.FileName)
 	if maxMB > 0 && fi.FileSize > int64(maxMB*1024*1024) {
 		chunkSize := int64(maxMB * 1024 * 1024)
 		chunks := fi.FileSize/chunkSize + 1
-		var fids []string
+		cm := ChunkManifest{
+			Name:   baseName,
+			Size:   fi.FileSize,
+			Mime:   fi.MimeType,
+			Chunks: make([]*ChunkInfo, 0, chunks),
+		}
+
 		for i := int64(0); i < chunks; i++ {
 			id, count, e := upload_one_chunk(
-				fi.FileName+"-"+strconv.FormatInt(i+1, 10),
+				baseName+"-"+strconv.FormatInt(i+1, 10),
 				io.LimitReader(fi.Reader, chunkSize),
 				master, fi.Replication, fi.Collection, fi.Ttl,
 				jwt)
 			if e != nil {
+				// delete all uploaded chunks
+				cm.DeleteChunks(master)
 				return 0, e
 			}
-			fids = append(fids, id)
+			cm.Chunks = append(cm.Chunks,
+				&ChunkInfo{
+					Offset: i * chunkSize,
+					Size:   int64(count),
+					Fid:    id,
+				},
+			)
 			retSize += count
 		}
-		err = upload_file_id_list(fileUrl, fi.FileName+"-list", fids, jwt)
+		err = upload_chunked_file_manifest(fileUrl, &cm, jwt)
+		if err != nil {
+			// delete all uploaded chunks
+			cm.DeleteChunks(master)
+		}
 	} else {
-		ret, e := Upload(fileUrl, fi.FileName, fi.Reader, fi.IsGzipped, fi.MimeType, jwt)
+		ret, e := Upload(fileUrl, baseName, fi.Reader, fi.IsGzipped, fi.MimeType, jwt)
 		if e != nil {
 			return 0, e
 		}
@@ -158,10 +179,17 @@ func upload_one_chunk(filename string, reader io.Reader, master,
 	return fid, uploadResult.Size, nil
 }
 
-func upload_file_id_list(fileUrl, filename string, fids []string, jwt security.EncodedJwt) error {
-	var buf bytes.Buffer
-	buf.WriteString(strings.Join(fids, "\n"))
-	glog.V(4).Info("Uploading final list ", filename, " to ", fileUrl, "...")
-	_, e := Upload(fileUrl, filename, &buf, false, "text/plain", jwt)
+func upload_chunked_file_manifest(fileUrl string, manifest *ChunkManifest, jwt security.EncodedJwt) error {
+	buf, e := manifest.Marshal()
+	if e != nil {
+		return e
+	}
+	bufReader := bytes.NewReader(buf)
+	glog.V(4).Info("Uploading chunks manifest ", manifest.Name, " to ", fileUrl, "...")
+	u, _ := url.Parse(fileUrl)
+	q := u.Query()
+	q.Set("cm", "1")
+	u.RawQuery = q.Encode()
+	_, e = Upload(u.String(), manifest.Name, bufReader, false, "application/json", jwt)
 	return e
 }

go/storage/needle.go

@@ -15,6 +15,7 @@ import (
 	"github.com/chrislusf/seaweedfs/go/glog"
 	"github.com/chrislusf/seaweedfs/go/images"
 	"github.com/chrislusf/seaweedfs/go/util"
+	"github.com/chrislusf/seaweedfs/go/operation"
 )
 
 const (
@@ -52,7 +53,7 @@ func (n *Needle) String() (str string) {
 	return
 }
 
-func ParseUpload(r *http.Request) (fileName string, data []byte, mimeType string, isGzipped bool, modifiedTime uint64, ttl *TTL, e error) {
+func ParseUpload(r *http.Request) (fileName string, data []byte, mimeType string, isGzipped bool, modifiedTime uint64, ttl *TTL, isChunkedFile bool, e error) {
 	form, fe := r.MultipartReader()
 	if fe != nil {
 		glog.V(0).Infoln("MultipartReader [ERROR]", fe)
@@ -117,8 +118,8 @@ func ParseUpload(r *http.Request) (fileName string, data []byte, mimeType string
 	}
 	if part.Header.Get("Content-Encoding") == "gzip" {
 		isGzipped = true
-	} else if IsGzippable(ext, mtype) {
-		if data, e = GzipData(data); e != nil {
+	} else if operation.IsGzippable(ext, mtype) {
+		if data, e = operation.GzipData(data); e != nil {
 			return
 		}
 		isGzipped = true
@@ -132,12 +133,13 @@ func ParseUpload(r *http.Request) (fileName string, data []byte, mimeType string
 	}
 	modifiedTime, _ = strconv.ParseUint(r.FormValue("ts"), 10, 64)
 	ttl, _ = ReadTTL(r.FormValue("ttl"))
+	isChunkedFile, _ = strconv.ParseBool(r.FormValue("cm"))
 	return
 }
 func NewNeedle(r *http.Request, fixJpgOrientation bool) (n *Needle, e error) {
-	fname, mimeType, isGzipped := "", "", false
+	fname, mimeType, isGzipped, isChunkedFile := "", "", false, false
 	n = new(Needle)
-	fname, n.Data, mimeType, isGzipped, n.LastModified, n.Ttl, e = ParseUpload(r)
+	fname, n.Data, mimeType, isGzipped, n.LastModified, n.Ttl, isChunkedFile, e = ParseUpload(r)
 	if e != nil {
 		return
 	}
@@ -160,6 +162,10 @@ func NewNeedle(r *http.Request, fixJpgOrientation bool) (n *Needle, e error) {
 		n.SetHasTtl()
 	}
 
+	if isChunkedFile {
+		n.SetChunkManifest()
+	}
+
 	if fixJpgOrientation {
 		loweredName := strings.ToLower(fname)
 		if mimeType == "image/jpeg" || strings.HasSuffix(loweredName, ".jpg") || strings.HasSuffix(loweredName, ".jpeg") {

go/storage/needle_read_write.go

@@ -16,6 +16,7 @@ const (
 	FlagHasMime             = 0x04
 	FlagHasLastModifiedDate = 0x08
 	FlagHasTtl              = 0x10
+	FlagChunkManifest       = 0x80
 	LastModifiedBytesLength = 5
 	TtlBytesLength          = 2
 )
@@ -280,3 +281,11 @@ func (n *Needle) HasTtl() bool {
 func (n *Needle) SetHasTtl() {
 	n.Flags = n.Flags | FlagHasTtl
 }
+
+func (n *Needle) IsChunkedManifest() bool {
+	return n.Flags&FlagChunkManifest > 0
+}
+
+func (n *Needle) SetChunkManifest() {
+	n.Flags = n.Flags | FlagChunkManifest
+}

go/topology/volume_location_list.go

@@ -17,6 +17,7 @@ func (dnll *VolumeLocationList) String() string {
 }
 
 func (dnll *VolumeLocationList) Head() *DataNode {
+	//mark first node as master volume
 	return dnll.list[0]
 }
 

go/util/http_util.go

@@ -9,7 +9,10 @@ import (
 	"net/url"
 	"strings"
 
+	"encoding/json"
+
 	"github.com/chrislusf/seaweedfs/go/security"
+	"github.com/syndtr/goleveldb/leveldb/errors"
 )
 
 var (
@@ -79,10 +82,21 @@ func Delete(url string, jwt security.EncodedJwt) error {
 		return e
 	}
 	defer resp.Body.Close()
-	if _, err := ioutil.ReadAll(resp.Body); err != nil {
+	body, err := ioutil.ReadAll(resp.Body)
+	if err != nil {
 		return err
 	}
-	return nil
+	switch resp.StatusCode {
+	case http.StatusNotFound, http.StatusAccepted, http.StatusOK:
+		return nil
+	}
+	m := make(map[string]interface{})
+	if e := json.Unmarshal(body, m); e == nil {
+		if s, ok := m["error"].(string); ok {
+			return errors.New(s)
+		}
+	}
+	return errors.New(string(body))
 }
 
 func GetBufferStream(url string, values url.Values, allocatedBytes []byte, eachBuffer func([]byte)) error {
@@ -122,12 +136,11 @@ func GetUrlStream(url string, values url.Values, readFn func(io.Reader) error) e
 	return readFn(r.Body)
 }
 
-func DownloadUrl(fileUrl string) (filename string, content []byte, e error) {
+func DownloadUrl(fileUrl string) (filename string, rc io.ReadCloser, e error) {
 	response, err := client.Get(fileUrl)
 	if err != nil {
 		return "", nil, err
 	}
-	defer response.Body.Close()
 	contentDisposition := response.Header["Content-Disposition"]
 	if len(contentDisposition) > 0 {
 		if strings.HasPrefix(contentDisposition[0], "filename=") {
@@ -135,7 +148,7 @@ func DownloadUrl(fileUrl string) (filename string, content []byte, e error) {
 			filename = strings.Trim(filename, "\"")
 		}
 	}
-	content, e = ioutil.ReadAll(response.Body)
+	rc = response.Body
 	return
 }
 

go/weed/download.go

@@ -3,9 +3,11 @@ package main
 import (
 	"fmt"
 	"io"
-	"io/ioutil"
 	"os"
 	"path"
+
+	"io/ioutil"
+
 	"strings"
 
 	"github.com/chrislusf/seaweedfs/go/operation"
@@ -43,50 +45,76 @@ var cmdDownload = &Command{
 
 func runDownload(cmd *Command, args []string) bool {
 	for _, fid := range args {
-		filename, content, e := fetchFileId(*d.server, fid)
-		if e != nil {
-			fmt.Println("Fetch Error:", e)
-			continue
+		if e := downloadToFile(*d.server, fid, *d.dir); e != nil {
+			fmt.Println("Download Error: ", fid, e)
 		}
-		if filename == "" {
-			filename = fid
+	}
+	return true
+}
+
+func downloadToFile(server, fileId, saveDir string) error {
+	fileUrl, lookupError := operation.LookupFileId(server, fileId)
+	if lookupError != nil {
+		return lookupError
+	}
+	filename, rc, err := util.DownloadUrl(fileUrl)
+	if err != nil {
+		return err
+	}
+	defer rc.Close()
+	if filename == "" {
+		filename = fileId
+	}
+	isFileList := false
+	if strings.HasSuffix(filename, "-list") {
+		// old command compatible
+		isFileList = true
+		filename = filename[0 : len(filename)-len("-list")]
+	}
+	f, err := os.OpenFile(path.Join(saveDir, filename), os.O_WRONLY|os.O_CREATE|os.O_TRUNC, os.ModePerm)
+	if err != nil {
+		return err
+	}
+	defer f.Close()
+	if isFileList {
+		content, err := ioutil.ReadAll(rc)
+		if err != nil {
+			return err
 		}
-		if strings.HasSuffix(filename, "-list") {
-			filename = filename[0 : len(filename)-len("-list")]
-			fids := strings.Split(string(content), "\n")
-			f, err := os.OpenFile(path.Join(*d.dir, filename), os.O_WRONLY|os.O_CREATE|os.O_TRUNC, os.ModePerm)
-			if err != nil {
-				fmt.Println("File Creation Error:", e)
-				continue
+		fids := strings.Split(string(content), "\n")
+		for _, partId := range fids {
+			var n int
+			_, part, err := fetchContent(*d.server, partId)
+			if err == nil {
+				n, err = f.Write(part)
 			}
-			defer f.Close()
-			for _, partId := range fids {
-				var n int
-				_, part, err := fetchFileId(*d.server, partId)
-				if err == nil {
-					n, err = f.Write(part)
-				}
-				if err == nil && n < len(part) {
-					err = io.ErrShortWrite
-				}
-				if err != nil {
-					fmt.Println("File Write Error:", err)
-					break
-				}
+			if err == nil && n < len(part) {
+				err = io.ErrShortWrite
 			}
-		} else {
-			ioutil.WriteFile(path.Join(*d.dir, filename), content, os.ModePerm)
+			if err != nil {
+				return err
+			}
+		}
+	} else {
+		if _, err = io.Copy(f, rc); err != nil {
+			return err
 		}
+
 	}
-	return true
+	return nil
 }
 
-func fetchFileId(server string, fileId string) (filename string, content []byte, e error) {
+func fetchContent(server string, fileId string) (filename string, content []byte, e error) {
 	fileUrl, lookupError := operation.LookupFileId(server, fileId)
 	if lookupError != nil {
 		return "", nil, lookupError
 	}
-	filename, content, e = util.DownloadUrl(fileUrl)
+	var rc io.ReadCloser
+	if filename, rc, e = util.DownloadUrl(fileUrl); e != nil {
+		return "", nil, e
+	}
+	content, e = ioutil.ReadAll(rc)
+	rc.Close()
 	return
 }
 

go/weed/weed_server/common.go

@@ -86,7 +86,7 @@ func submitForClientHandler(w http.ResponseWriter, r *http.Request, masterUrl st
 	}
 
 	debug("parsing upload file...")
-	fname, data, mimeType, isGzipped, lastModified, _, pe := storage.ParseUpload(r)
+	fname, data, mimeType, isGzipped, lastModified, _, _, pe := storage.ParseUpload(r)
 	if pe != nil {
 		writeJsonError(w, r, http.StatusBadRequest, pe)
 		return

go/weed/weed_server/volume_server_handlers_read.go

@@ -9,6 +9,10 @@ import (
 	"strings"
 	"time"
 
+	"path"
+
+	"bytes"
+
 	"github.com/chrislusf/seaweedfs/go/glog"
 	"github.com/chrislusf/seaweedfs/go/images"
 	"github.com/chrislusf/seaweedfs/go/operation"
@@ -81,36 +85,32 @@ func (vs *VolumeServer) GetOrHeadHandler(w http.ResponseWriter, r *http.Request)
 		return
 	}
 	w.Header().Set("Etag", etag)
+
+	if vs.tryHandleChunkedFile(n, filename, w, r) {
+		return
+	}
+
 	if n.NameSize > 0 && filename == "" {
 		filename = string(n.Name)
-		dotIndex := strings.LastIndex(filename, ".")
-		if dotIndex > 0 {
-			ext = filename[dotIndex:]
+		if ext == "" {
+			ext = path.Ext(filename)
 		}
 	}
 	mtype := ""
-	if ext != "" {
-		mtype = mime.TypeByExtension(ext)
-	}
 	if n.MimeSize > 0 {
 		mt := string(n.Mime)
 		if !strings.HasPrefix(mt, "application/octet-stream") {
 			mtype = mt
 		}
 	}
-	if mtype != "" {
-		w.Header().Set("Content-Type", mtype)
-	}
-	if filename != "" {
-		w.Header().Set("Content-Disposition", "filename=\""+fileNameEscaper.Replace(filename)+"\"")
-	}
+
 	if ext != ".gz" {
 		if n.IsGzipped() {
 			if strings.Contains(r.Header.Get("Accept-Encoding"), "gzip") {
 				w.Header().Set("Content-Encoding", "gzip")
 			} else {
-				if n.Data, err = storage.UnGzipData(n.Data); err != nil {
-					glog.V(0).Infoln("lookup error:", err, r.URL.Path)
+				if n.Data, err = operation.UnGzipData(n.Data); err != nil {
+					glog.V(0).Infoln("ungzip error:", err, r.URL.Path)
 				}
 			}
 		}
@@ -126,38 +126,94 @@ func (vs *VolumeServer) GetOrHeadHandler(w http.ResponseWriter, r *http.Request)
 		n.Data, _, _ = images.Resized(ext, n.Data, width, height)
 	}
 
+	if e := writeResponseContent(filename, mtype, bytes.NewReader(n.Data), w, r); e != nil {
+		glog.V(2).Infoln("response write error:", e)
+	}
+}
+
+func (vs *VolumeServer) tryHandleChunkedFile(n *storage.Needle, fileName string, w http.ResponseWriter, r *http.Request) (processed bool) {
+	if !n.IsChunkedManifest() {
+		return false
+	}
+	raw, _ := strconv.ParseBool(r.FormValue("raw"))
+	if raw {
+		return false
+	}
+	processed = true
+
+	chunkManifest, e := operation.LoadChunkManifest(n.Data, n.IsGzipped())
+	if e != nil {
+		glog.V(0).Infof("load chunked manifest (%s) error: %s", r.URL.Path, e.Error())
+		return false
+	}
+	if fileName == "" && chunkManifest.Name != "" {
+		fileName = chunkManifest.Name
+	}
+	mType := ""
+	if chunkManifest.Mime != "" {
+		mt := chunkManifest.Mime
+		if !strings.HasPrefix(mt, "application/octet-stream") {
+			mType = mt
+		}
+	}
+
+	w.Header().Set("X-File-Store", "chunked")
+
+	chunkedFileReader := &operation.ChunkedFileReader{
+		Manifest: chunkManifest,
+		Master:   vs.GetMasterNode(),
+	}
+	defer chunkedFileReader.Close()
+	if e := writeResponseContent(fileName, mType, chunkedFileReader, w, r); e != nil {
+		glog.V(2).Infoln("response write error:", e)
+	}
+	return
+}
+
+func writeResponseContent(filename, mimeType string, rs io.ReadSeeker, w http.ResponseWriter, r *http.Request) error {
+	totalSize, e := rs.Seek(0, 2)
+	if mimeType == "" {
+		if ext := path.Ext(filename); ext != "" {
+			mimeType = mime.TypeByExtension(ext)
+		}
+	}
+	if mimeType != "" {
+		w.Header().Set("Content-Type", mimeType)
+	}
+	if filename != "" {
+		w.Header().Set("Content-Disposition", `filename="`+fileNameEscaper.Replace(filename)+`"`)
+	}
 	w.Header().Set("Accept-Ranges", "bytes")
 	if r.Method == "HEAD" {
-		w.Header().Set("Content-Length", strconv.Itoa(len(n.Data)))
-		return
+		w.Header().Set("Content-Length", strconv.FormatInt(totalSize, 10))
+		return nil
 	}
 	rangeReq := r.Header.Get("Range")
 	if rangeReq == "" {
-		w.Header().Set("Content-Length", strconv.Itoa(len(n.Data)))
-		if _, e = w.Write(n.Data); e != nil {
-			glog.V(0).Infoln("response write error:", e)
+		w.Header().Set("Content-Length", strconv.FormatInt(totalSize, 10))
+		if _, e = rs.Seek(0, 0); e != nil {
+			return e
 		}
-		return
+		_, e = io.Copy(w, rs)
+		return e
 	}
 
 	//the rest is dealing with partial content request
 	//mostly copy from src/pkg/net/http/fs.go
-	size := int64(len(n.Data))
-	ranges, err := parseRange(rangeReq, size)
+	ranges, err := parseRange(rangeReq, totalSize)
 	if err != nil {
 		http.Error(w, err.Error(), http.StatusRequestedRangeNotSatisfiable)
-		return
+		return nil
 	}
-	if sumRangesSize(ranges) > size {
+	if sumRangesSize(ranges) > totalSize {
 		// The total number of bytes in all the ranges
 		// is larger than the size of the file by
 		// itself, so this is probably an attack, or a
 		// dumb client.  Ignore the range request.
-		ranges = nil
-		return
+		return nil
 	}
 	if len(ranges) == 0 {
-		return
+		return nil
 	}
 	if len(ranges) == 1 {
 		// RFC 2616, Section 14.16:
@@ -173,21 +229,23 @@ func (vs *VolumeServer) GetOrHeadHandler(w http.ResponseWriter, r *http.Request)
 		// be sent using the multipart/byteranges media type."
 		ra := ranges[0]
 		w.Header().Set("Content-Length", strconv.FormatInt(ra.length, 10))
-		w.Header().Set("Content-Range", ra.contentRange(size))
+		w.Header().Set("Content-Range", ra.contentRange(totalSize))
 		w.WriteHeader(http.StatusPartialContent)
-		if _, e = w.Write(n.Data[ra.start : ra.start+ra.length]); e != nil {
-			glog.V(0).Infoln("response write error:", e)
+		if _, e = rs.Seek(ra.start, 0); e != nil {
+			return e
 		}
-		return
+
+		_, e = io.CopyN(w, rs, ra.length)
+		return e
 	}
-	// process mulitple ranges
+	// process multiple ranges
 	for _, ra := range ranges {
-		if ra.start > size {
+		if ra.start > totalSize {
 			http.Error(w, "Out of Range", http.StatusRequestedRangeNotSatisfiable)
-			return
+			return nil
 		}
 	}
-	sendSize := rangesMIMESize(ranges, mtype, size)
+	sendSize := rangesMIMESize(ranges, mimeType, totalSize)
 	pr, pw := io.Pipe()
 	mw := multipart.NewWriter(pw)
 	w.Header().Set("Content-Type", "multipart/byteranges; boundary="+mw.Boundary())
@@ -195,13 +253,17 @@ func (vs *VolumeServer) GetOrHeadHandler(w http.ResponseWriter, r *http.Request)
 	defer pr.Close() // cause writing goroutine to fail and exit if CopyN doesn't finish.
 	go func() {
 		for _, ra := range ranges {
-			part, err := mw.CreatePart(ra.mimeHeader(mtype, size))
-			if err != nil {
-				pw.CloseWithError(err)
+			part, e := mw.CreatePart(ra.mimeHeader(mimeType, totalSize))
+			if e != nil {
+				pw.CloseWithError(e)
 				return
 			}
-			if _, err = part.Write(n.Data[ra.start : ra.start+ra.length]); err != nil {
-				pw.CloseWithError(err)
+			if _, e = rs.Seek(ra.start, 0); e != nil {
+				pw.CloseWithError(e)
+				return
+			}
+			if _, e = io.CopyN(part, rs, ra.length); e != nil {
+				pw.CloseWithError(e)
 				return
 			}
 		}
@@ -212,6 +274,6 @@ func (vs *VolumeServer) GetOrHeadHandler(w http.ResponseWriter, r *http.Request)
 		w.Header().Set("Content-Length", strconv.FormatInt(sendSize, 10))
 	}
 	w.WriteHeader(http.StatusPartialContent)
-	io.CopyN(w, sendContent, sendSize)
-
+	_, e = io.CopyN(w, sendContent, sendSize)
+	return e
 }

go/weed/weed_server/volume_server_handlers_write.go

@@ -53,9 +53,8 @@ func (vs *VolumeServer) DeleteHandler(w http.ResponseWriter, r *http.Request) {
 	glog.V(2).Infoln("deleting", n)
 
 	cookie := n.Cookie
-	count, ok := vs.store.ReadVolumeNeedle(volumeId, n)
 
-	if ok != nil {
+	if _, ok := vs.store.ReadVolumeNeedle(volumeId, n); ok != nil {
 		m := make(map[string]uint32)
 		m["size"] = 0
 		writeJsonQuiet(w, r, http.StatusNotFound, m)
@@ -64,14 +63,31 @@ func (vs *VolumeServer) DeleteHandler(w http.ResponseWriter, r *http.Request) {
 
 	if n.Cookie != cookie {
 		glog.V(0).Infoln("delete", r.URL.Path, "with unmaching cookie from ", r.RemoteAddr, "agent", r.UserAgent())
+		writeJsonError(w, r, http.StatusBadRequest, errors.New("File Random Cookie does not match."))
 		return
 	}
 
+	count := int64(n.Size)
+
+	if n.IsChunkedManifest() {
+		chunkManifest, e := operation.LoadChunkManifest(n.Data, n.IsGzipped())
+		if e != nil {
+			writeJsonError(w, r, http.StatusInternalServerError, errors.New("Load chunks manifest error: "+e.Error()))
+			return
+		}
+		// make sure all chunks had deleted before delete manifest
+		if e := chunkManifest.DeleteChunks(vs.GetMasterNode()); e != nil {
+			writeJsonError(w, r, http.StatusInternalServerError, errors.New("Delete chunks error: "+e.Error()))
+			return
+		}
+		count = chunkManifest.Size
+	}
+
 	ret := topology.ReplicatedDelete(vs.GetMasterNode(), vs.store, volumeId, n, r)
 
 	if ret != 0 {
-		m := make(map[string]uint32)
-		m["size"] = uint32(count)
+		m := make(map[string]int64)
+		m["size"] = count
 		writeJsonQuiet(w, r, http.StatusAccepted, m)
 	} else {
 		writeJsonError(w, r, http.StatusInternalServerError, errors.New("Deletion Failed."))
@@ -86,7 +102,10 @@ func (vs *VolumeServer) batchDeleteHandler(w http.ResponseWriter, r *http.Reques
 	for _, fid := range r.Form["fid"] {
 		vid, id_cookie, err := operation.ParseFileId(fid)
 		if err != nil {
-			ret = append(ret, operation.DeleteResult{Fid: fid, Error: err.Error()})
+			ret = append(ret, operation.DeleteResult{
+				Fid:    fid,
+				Status: http.StatusBadRequest,
+				Error:  err.Error()})
 			continue
 		}
 		n := new(storage.Needle)
@@ -95,18 +114,45 @@ func (vs *VolumeServer) batchDeleteHandler(w http.ResponseWriter, r *http.Reques
 		glog.V(4).Infoln("batch deleting", n)
 		cookie := n.Cookie
 		if _, err := vs.store.ReadVolumeNeedle(volumeId, n); err != nil {
-			ret = append(ret, operation.DeleteResult{Fid: fid, Error: err.Error()})
+			ret = append(ret, operation.DeleteResult{
+				Fid:    fid,
+				Status: http.StatusNotFound,
+				Error:  err.Error(),
+			})
+			continue
+		}
+
+		if n.IsChunkedManifest() {
+			//Don't allow delete manifest in batch delete mode
+			ret = append(ret, operation.DeleteResult{
+				Fid:    fid,
+				Status: http.StatusNotAcceptable,
+				Error:  "ChunkManifest: not allow.",
+			})
 			continue
 		}
+
 		if n.Cookie != cookie {
-			ret = append(ret, operation.DeleteResult{Fid: fid, Error: "File Random Cookie does not match."})
+			ret = append(ret, operation.DeleteResult{
+				Fid:    fid,
+				Status: http.StatusBadRequest,
+				Error:  "File Random Cookie does not match.",
+			})
 			glog.V(0).Infoln("deleting", fid, "with unmaching cookie from ", r.RemoteAddr, "agent", r.UserAgent())
 			return
 		}
 		if size, err := vs.store.Delete(volumeId, n); err != nil {
-			ret = append(ret, operation.DeleteResult{Fid: fid, Error: err.Error()})
+			ret = append(ret, operation.DeleteResult{
+				Fid:    fid,
+				Status: http.StatusInternalServerError,
+				Error:  err.Error()},
+			)
 		} else {
-			ret = append(ret, operation.DeleteResult{Fid: fid, Size: int(size)})
+			ret = append(ret, operation.DeleteResult{
+				Fid:    fid,
+				Status: http.StatusAccepted,
+				Size:   int(size)},
+			)
 		}
 	}