filer cipher: single chunk http POST and PUT and read

weed/operation/upload_content.go

@@ -69,18 +69,12 @@ func doUpload(uploadUrl string, filename string, cipher bool, reader io.Reader,
 	// encrypt data
 	var cipherKey util.CipherKey
 	var clearDataLen int
+	var err error
 	if cipher {
-		clearData, err := ioutil.ReadAll(reader)
+		cipherKey, reader, clearDataLen, _, err = util.EncryptReader(reader)
 		if err != nil {
-			return nil, fmt.Errorf("read raw input: %v", err)
-		}
-		clearDataLen = len(clearData)
-		cipherKey = util.GenCipherKey()
-		encryptedData, err := util.Encrypt(clearData, cipherKey)
-		if err != nil {
-			return nil, fmt.Errorf("encrypt input: %v", err)
+			return nil, err
 		}
-		reader = bytes.NewReader(encryptedData)
 	}
 
 	// upload data

weed/server/common.go

@@ -99,13 +99,13 @@ func submitForClientHandler(w http.ResponseWriter, r *http.Request, masterUrl st
 	}
 
 	debug("parsing upload file...")
-	fname, data, mimeType, pairMap, isGzipped, originalDataSize, lastModified, _, _, pe := needle.ParseUpload(r, 256*1024*1024)
+	pu, pe := needle.ParseUpload(r, 256*1024*1024)
 	if pe != nil {
 		writeJsonError(w, r, http.StatusBadRequest, pe)
 		return
 	}
 
-	debug("assigning file id for", fname)
+	debug("assigning file id for", pu.FileName)
 	r.ParseForm()
 	count := uint64(1)
 	if r.FormValue("count") != "" {
@@ -129,21 +129,21 @@ func submitForClientHandler(w http.ResponseWriter, r *http.Request, masterUrl st
 	}
 
 	url := "http://" + assignResult.Url + "/" + assignResult.Fid
-	if lastModified != 0 {
-		url = url + "?ts=" + strconv.FormatUint(lastModified, 10)
+	if pu.ModifiedTime != 0 {
+		url = url + "?ts=" + strconv.FormatUint(pu.ModifiedTime, 10)
 	}
 
 	debug("upload file to store", url)
-	uploadResult, err := operation.Upload(url, fname, false, bytes.NewReader(data), isGzipped, mimeType, pairMap, assignResult.Auth)
+	uploadResult, err := operation.Upload(url, pu.FileName, false, bytes.NewReader(pu.Data), pu.IsGzipped, pu.MimeType, pu.PairMap, assignResult.Auth)
 	if err != nil {
 		writeJsonError(w, r, http.StatusInternalServerError, err)
 		return
 	}
 
-	m["fileName"] = fname
+	m["fileName"] = pu.FileName
 	m["fid"] = assignResult.Fid
 	m["fileUrl"] = assignResult.PublicUrl + "/" + assignResult.Fid
-	m["size"] = originalDataSize
+	m["size"] = pu.OriginalDataSize
 	m["eTag"] = uploadResult.ETag
 	writeJsonQuiet(w, r, http.StatusCreated, m)
 	return

weed/server/filer_server_handlers_read.go

@@ -2,6 +2,7 @@ package weed_server
 
 import (
 	"context"
+	"fmt"
 	"io"
 	"io/ioutil"
 	"mime"
@@ -14,7 +15,6 @@ import (
 
 	"github.com/chrislusf/seaweedfs/weed/filer2"
 	"github.com/chrislusf/seaweedfs/weed/glog"
-	"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
 	"github.com/chrislusf/seaweedfs/weed/stats"
 	"github.com/chrislusf/seaweedfs/weed/util"
 )
@@ -136,15 +136,16 @@ func (fs *FilerServer) handleSingleChunk(w http.ResponseWriter, r *http.Request,
 	if entry.Attr.Mime != "" {
 		w.Header().Set("Content-Type", entry.Attr.Mime)
 	}
-	w.WriteHeader(resp.StatusCode)
 	if entry.Chunks[0].CipherKey == nil {
+		w.WriteHeader(resp.StatusCode)
 		io.Copy(w, resp.Body)
 	} else {
-		fs.writeEncryptedChunk(w, resp, entry.Chunks[0])
+		fs.writeEncryptedChunk(w, resp, entry)
 	}
 }
 
-func (fs *FilerServer) writeEncryptedChunk(w http.ResponseWriter, resp *http.Response, chunk *filer_pb.FileChunk) {
+func (fs *FilerServer) writeEncryptedChunk(w http.ResponseWriter, resp *http.Response, entry *filer2.Entry) {
+	chunk := entry.Chunks[0]
 	encryptedData, err := ioutil.ReadAll(resp.Body)
 	if err != nil {
 		glog.V(1).Infof("read encrypted %s failed, err: %v", chunk.FileId, err)
@@ -157,6 +158,8 @@ func (fs *FilerServer) writeEncryptedChunk(w http.ResponseWriter, resp *http.Res
 		w.WriteHeader(http.StatusNotFound)
 		return
 	}
+	w.Header().Set("Content-Length", fmt.Sprintf("%d", chunk.Size))
+	w.WriteHeader(resp.StatusCode)
 	w.Write(decryptedData)
 }
 

weed/server/filer_server_handlers_write.go

@@ -90,10 +90,22 @@ func (fs *FilerServer) PostHandler(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
+	if fs.option.Cipher {
+		reply, err := fs.encrypt(ctx, w, r, replication, collection, dataCenter)
+		if err != nil {
+			writeJsonError(w, r, http.StatusInternalServerError, err)
+		} else if reply != nil {
+			writeJsonQuiet(w, r, http.StatusCreated, reply)
+		}
+
+		return
+	}
+
 	fileId, urlLocation, auth, err := fs.assignNewFileInfo(w, r, replication, collection, dataCenter)
 
 	if err != nil || fileId == "" || urlLocation == "" {
 		glog.V(0).Infof("fail to allocate volume for %s, collection:%s, datacenter:%s", r.URL.Path, collection, dataCenter)
+		writeJsonError(w, r, http.StatusInternalServerError, fmt.Errorf("fail to allocate volume for %s, collection:%s, datacenter:%s", r.URL.Path, collection, dataCenter))
 		return
 	}
 
@@ -134,7 +146,7 @@ func (fs *FilerServer) PostHandler(w http.ResponseWriter, r *http.Request) {
 
 // update metadata in filer store
 func (fs *FilerServer) updateFilerStore(ctx context.Context, r *http.Request, w http.ResponseWriter,
-	replication string, collection string, ret operation.UploadResult, fileId string) (err error) {
+	replication string, collection string, ret *operation.UploadResult, fileId string) (err error) {
 
 	stats.FilerRequestCounter.WithLabelValues("postStoreWrite").Inc()
 	start := time.Now()
@@ -198,12 +210,14 @@ func (fs *FilerServer) updateFilerStore(ctx context.Context, r *http.Request, w
 }
 
 // send request to volume server
-func (fs *FilerServer) uploadToVolumeServer(r *http.Request, u *url.URL, auth security.EncodedJwt, w http.ResponseWriter, fileId string) (ret operation.UploadResult, err error) {
+func (fs *FilerServer) uploadToVolumeServer(r *http.Request, u *url.URL, auth security.EncodedJwt, w http.ResponseWriter, fileId string) (ret *operation.UploadResult, err error) {
 
 	stats.FilerRequestCounter.WithLabelValues("postUpload").Inc()
 	start := time.Now()
 	defer func() { stats.FilerRequestHistogram.WithLabelValues("postUpload").Observe(time.Since(start).Seconds()) }()
 
+	ret = &operation.UploadResult{}
+
 	request := &http.Request{
 		Method:        r.Method,
 		URL:           u,
@@ -215,6 +229,7 @@ func (fs *FilerServer) uploadToVolumeServer(r *http.Request, u *url.URL, auth se
 		Host:          r.Host,
 		ContentLength: r.ContentLength,
 	}
+
 	if auth != "" {
 		request.Header.Set("Authorization", "BEARER "+string(auth))
 	}

weed/server/filer_server_handlers_write_autochunk.go

@@ -103,13 +103,13 @@ func (fs *FilerServer) doAutoChunk(ctx context.Context, w http.ResponseWriter, r
 
 		// upload the chunk to the volume server
 		chunkName := fileName + "_chunk_" + strconv.FormatInt(int64(len(fileChunks)+1), 10)
-		uploadedSize, uploadErr := fs.doUpload(urlLocation, w, r, limitedReader, chunkName, "", fileId, auth)
+		uploadResult, uploadErr := fs.doUpload(urlLocation, w, r, limitedReader, chunkName, "", fileId, auth)
 		if uploadErr != nil {
 			return nil, uploadErr
 		}
 
 		// if last chunk exhausted the reader exactly at the border
-		if uploadedSize == 0 {
+		if uploadResult.Size == 0 {
 			break
 		}
 
@@ -118,18 +118,20 @@ func (fs *FilerServer) doAutoChunk(ctx context.Context, w http.ResponseWriter, r
 			&filer_pb.FileChunk{
 				FileId:    fileId,
 				Offset:    chunkOffset,
-				Size:   uint64(uploadedSize),
+				Size:      uint64(uploadResult.Size),
 				Mtime:     time.Now().UnixNano(),
+				ETag:      uploadResult.ETag,
+				CipherKey: uploadResult.CipherKey,
 			},
 		)
 
-		glog.V(4).Infof("uploaded %s chunk %d to %s [%d,%d) of %d", fileName, len(fileChunks), fileId, chunkOffset, chunkOffset+int64(uploadedSize), contentLength)
+		glog.V(4).Infof("uploaded %s chunk %d to %s [%d,%d) of %d", fileName, len(fileChunks), fileId, chunkOffset, chunkOffset+int64(uploadResult.Size), contentLength)
 
 		// reset variables for the next chunk
-		chunkOffset = chunkOffset + int64(uploadedSize)
+		chunkOffset = chunkOffset + int64(uploadResult.Size)
 
 		// if last chunk was not at full chunk size, but already exhausted the reader
-		if uploadedSize < int64(chunkSize) {
+		if int64(uploadResult.Size) < int64(chunkSize) {
 			break
 		}
 	}
@@ -174,7 +176,7 @@ func (fs *FilerServer) doAutoChunk(ctx context.Context, w http.ResponseWriter, r
 }
 
 func (fs *FilerServer) doUpload(urlLocation string, w http.ResponseWriter, r *http.Request,
-	limitedReader io.Reader, fileName string, contentType string, fileId string, auth security.EncodedJwt) (size int64, err error) {
+	limitedReader io.Reader, fileName string, contentType string, fileId string, auth security.EncodedJwt) (*operation.UploadResult, error) {
 
 	stats.FilerRequestCounter.WithLabelValues("postAutoChunkUpload").Inc()
 	start := time.Now()
@@ -182,9 +184,5 @@ func (fs *FilerServer) doUpload(urlLocation string, w http.ResponseWriter, r *ht
 		stats.FilerRequestHistogram.WithLabelValues("postAutoChunkUpload").Observe(time.Since(start).Seconds())
 	}()
 
-	uploadResult, uploadError := operation.Upload(urlLocation, fileName, fs.option.Cipher, limitedReader, false, contentType, nil, auth)
-	if uploadError != nil {
-		return 0, uploadError
-	}
-	return int64(uploadResult.Size), nil
+	return operation.Upload(urlLocation, fileName, fs.option.Cipher, limitedReader, false, contentType, nil, auth)
 }

weed/server/filer_server_handlers_write_cipher.go

@@ -0,0 +1,103 @@
+package weed_server
+
+import (
+	"bytes"
+	"context"
+	"fmt"
+	"net/http"
+	"strings"
+	"time"
+
+	"github.com/chrislusf/seaweedfs/weed/filer2"
+	"github.com/chrislusf/seaweedfs/weed/glog"
+	"github.com/chrislusf/seaweedfs/weed/operation"
+	"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
+	"github.com/chrislusf/seaweedfs/weed/storage/needle"
+	"github.com/chrislusf/seaweedfs/weed/util"
+)
+
+// handling single chunk POST or PUT upload
+func (fs *FilerServer) encrypt(ctx context.Context, w http.ResponseWriter, r *http.Request,
+	replication string, collection string, dataCenter string) (filerResult *FilerPostResult, err error) {
+
+	fileId, urlLocation, auth, err := fs.assignNewFileInfo(w, r, replication, collection, dataCenter)
+
+	if err != nil || fileId == "" || urlLocation == "" {
+		return nil, fmt.Errorf("fail to allocate volume for %s, collection:%s, datacenter:%s", r.URL.Path, collection, dataCenter)
+	}
+
+	glog.V(4).Infof("write %s to %v", r.URL.Path, urlLocation)
+
+	// Note: gzip(cipher(data)), cipher data first, then gzip
+
+	sizeLimit := int64(fs.option.MaxMB) * 1024 * 1024
+
+	pu, err := needle.ParseUpload(r, sizeLimit)
+	data := pu.Data
+	uncompressedData := pu.Data
+	cipherKey := util.GenCipherKey()
+	if pu.IsGzipped {
+		uncompressedData = pu.UncompressedData
+		data, err = util.Encrypt(pu.UncompressedData, cipherKey)
+		if err != nil {
+			return nil, fmt.Errorf("encrypt input: %v", err)
+		}
+	}
+	if pu.MimeType == "" {
+		pu.MimeType = http.DetectContentType(uncompressedData)
+	}
+
+	uploadResult, uploadError := operation.Upload(urlLocation, pu.FileName, true, bytes.NewReader(data), pu.IsGzipped, "", pu.PairMap, auth)
+	if uploadError != nil {
+		return nil, fmt.Errorf("upload to volume server: %v", uploadError)
+	}
+
+	// Save to chunk manifest structure
+	fileChunks := []*filer_pb.FileChunk{
+		{
+			FileId:    fileId,
+			Offset:    0,
+			Size:      uint64(uploadResult.Size),
+			Mtime:     time.Now().UnixNano(),
+			ETag:      uploadResult.ETag,
+			CipherKey: uploadResult.CipherKey,
+		},
+	}
+
+	path := r.URL.Path
+	if strings.HasSuffix(path, "/") {
+		if pu.FileName != "" {
+			path += pu.FileName
+		}
+	}
+
+	entry := &filer2.Entry{
+		FullPath: filer2.FullPath(path),
+		Attr: filer2.Attr{
+			Mtime:       time.Now(),
+			Crtime:      time.Now(),
+			Mode:        0660,
+			Uid:         OS_UID,
+			Gid:         OS_GID,
+			Replication: replication,
+			Collection:  collection,
+			TtlSec:      int32(util.ParseInt(r.URL.Query().Get("ttl"), 0)),
+			Mime:        pu.MimeType,
+		},
+		Chunks: fileChunks,
+	}
+
+	filerResult = &FilerPostResult{
+		Name: pu.FileName,
+		Size: int64(pu.OriginalDataSize),
+	}
+
+	if dbErr := fs.filer.CreateEntry(ctx, entry, false); dbErr != nil {
+		fs.filer.DeleteChunks(entry.Chunks)
+		err = dbErr
+		filerResult.Error = dbErr.Error()
+		return
+	}
+
+	return
+}

weed/storage/needle/needle.go

@@ -3,8 +3,6 @@ package needle
 import (
 	"encoding/json"
 	"fmt"
-	"io"
-	"io/ioutil"
 	"net/http"
 	"strconv"
 	"strings"
@@ -12,7 +10,6 @@ import (
 
 	"github.com/chrislusf/seaweedfs/weed/images"
 	. "github.com/chrislusf/seaweedfs/weed/storage/types"
-	"github.com/chrislusf/seaweedfs/weed/util"
 )
 
 const (
@@ -51,67 +48,30 @@ func (n *Needle) String() (str string) {
 	return
 }
 
-func ParseUpload(r *http.Request, sizeLimit int64) (
-	fileName string, data []byte, mimeType string, pairMap map[string]string, isGzipped bool, originalDataSize int,
-	modifiedTime uint64, ttl *TTL, isChunkedFile bool, e error) {
-	pairMap = make(map[string]string)
-	for k, v := range r.Header {
-		if len(v) > 0 && strings.HasPrefix(k, PairNamePrefix) {
-			pairMap[k] = v[0]
-		}
-	}
 
-	if r.Method == "POST" {
-		fileName, data, mimeType, isGzipped, originalDataSize, isChunkedFile, e = parseMultipart(r, sizeLimit)
-	} else {
-		isGzipped = r.Header.Get("Content-Encoding") == "gzip"
-		mimeType = r.Header.Get("Content-Type")
-		fileName = ""
-		data, e = ioutil.ReadAll(io.LimitReader(r.Body, sizeLimit+1))
-		originalDataSize = len(data)
-		if e == io.EOF || int64(originalDataSize) == sizeLimit+1 {
-			io.Copy(ioutil.Discard, r.Body)
-		}
-		r.Body.Close()
-		if isGzipped {
-			if unzipped, e := util.UnGzipData(data); e == nil {
-				originalDataSize = len(unzipped)
-			}
-		} else if shouldGzip, _ := util.IsGzippableFileType("", mimeType); shouldGzip {
-			if compressedData, err := util.GzipData(data); err == nil {
-				data = compressedData
-				isGzipped = true
-			}
-		}
-	}
-	if e != nil {
-		return
-	}
-
-	modifiedTime, _ = strconv.ParseUint(r.FormValue("ts"), 10, 64)
-	ttl, _ = ReadTTL(r.FormValue("ttl"))
-
-	return
-}
 func CreateNeedleFromRequest(r *http.Request, fixJpgOrientation bool, sizeLimit int64) (n *Needle, originalSize int, e error) {
-	var pairMap map[string]string
-	fname, mimeType, isGzipped, isChunkedFile := "", "", false, false
 	n = new(Needle)
-	fname, n.Data, mimeType, pairMap, isGzipped, originalSize, n.LastModified, n.Ttl, isChunkedFile, e = ParseUpload(r, sizeLimit)
+	pu, e := ParseUpload(r, sizeLimit)
 	if e != nil {
 		return
 	}
-	if len(fname) < 256 {
-		n.Name = []byte(fname)
+	n.Data = pu.Data
+	originalSize = pu.OriginalDataSize
+	n.LastModified = pu.ModifiedTime
+	n.Ttl = pu.Ttl
+
+
+	if len(pu.FileName) < 256 {
+		n.Name = []byte(pu.FileName)
 		n.SetHasName()
 	}
-	if len(mimeType) < 256 {
-		n.Mime = []byte(mimeType)
+	if len(pu.MimeType) < 256 {
+		n.Mime = []byte(pu.MimeType)
 		n.SetHasMime()
 	}
-	if len(pairMap) != 0 {
+	if len(pu.PairMap) != 0 {
 		trimmedPairMap := make(map[string]string)
-		for k, v := range pairMap {
+		for k, v := range pu.PairMap {
 			trimmedPairMap[k[len(PairNamePrefix):]] = v
 		}
 
@@ -122,7 +82,7 @@ func CreateNeedleFromRequest(r *http.Request, fixJpgOrientation bool, sizeLimit
 			n.SetHasPairs()
 		}
 	}
-	if isGzipped {
+	if pu.IsGzipped {
 		n.SetGzipped()
 	}
 	if n.LastModified == 0 {
@@ -133,13 +93,13 @@ func CreateNeedleFromRequest(r *http.Request, fixJpgOrientation bool, sizeLimit
 		n.SetHasTtl()
 	}
 
-	if isChunkedFile {
+	if pu.IsChunkedFile {
 		n.SetIsChunkManifest()
 	}
 
 	if fixJpgOrientation {
-		loweredName := strings.ToLower(fname)
-		if mimeType == "image/jpeg" || strings.HasSuffix(loweredName, ".jpg") || strings.HasSuffix(loweredName, ".jpeg") {
+		loweredName := strings.ToLower(pu.FileName)
+		if pu.MimeType == "image/jpeg" || strings.HasSuffix(loweredName, ".jpg") || strings.HasSuffix(loweredName, ".jpeg") {
 			n.Data = images.FixJpgOrientation(n.Data)
 		}
 	}

weed/storage/needle/needle_parse_multipart.go

@@ -1,118 +0,0 @@
-package needle
-
-import (
-	"fmt"
-	"io"
-	"io/ioutil"
-	"mime"
-	"net/http"
-	"path"
-	"strconv"
-	"strings"
-
-	"github.com/chrislusf/seaweedfs/weed/glog"
-	"github.com/chrislusf/seaweedfs/weed/util"
-)
-
-func parseMultipart(r *http.Request, sizeLimit int64) (
-	fileName string, data []byte, mimeType string, isGzipped bool, originalDataSize int, isChunkedFile bool, e error) {
-	defer func() {
-		if e != nil && r.Body != nil {
-			io.Copy(ioutil.Discard, r.Body)
-			r.Body.Close()
-		}
-	}()
-	form, fe := r.MultipartReader()
-	if fe != nil {
-		glog.V(0).Infoln("MultipartReader [ERROR]", fe)
-		e = fe
-		return
-	}
-
-	//first multi-part item
-	part, fe := form.NextPart()
-	if fe != nil {
-		glog.V(0).Infoln("Reading Multi part [ERROR]", fe)
-		e = fe
-		return
-	}
-
-	fileName = part.FileName()
-	if fileName != "" {
-		fileName = path.Base(fileName)
-	}
-
-	data, e = ioutil.ReadAll(io.LimitReader(part, sizeLimit+1))
-	if e != nil {
-		glog.V(0).Infoln("Reading Content [ERROR]", e)
-		return
-	}
-	if len(data) == int(sizeLimit)+1 {
-		e = fmt.Errorf("file over the limited %d bytes", sizeLimit)
-		return
-	}
-
-	//if the filename is empty string, do a search on the other multi-part items
-	for fileName == "" {
-		part2, fe := form.NextPart()
-		if fe != nil {
-			break // no more or on error, just safely break
-		}
-
-		fName := part2.FileName()
-
-		//found the first <file type> multi-part has filename
-		if fName != "" {
-			data2, fe2 := ioutil.ReadAll(io.LimitReader(part2, sizeLimit+1))
-			if fe2 != nil {
-				glog.V(0).Infoln("Reading Content [ERROR]", fe2)
-				e = fe2
-				return
-			}
-			if len(data) == int(sizeLimit)+1 {
-				e = fmt.Errorf("file over the limited %d bytes", sizeLimit)
-				return
-			}
-
-			//update
-			data = data2
-			fileName = path.Base(fName)
-			break
-		}
-	}
-
-	originalDataSize = len(data)
-
-	isChunkedFile, _ = strconv.ParseBool(r.FormValue("cm"))
-
-	if !isChunkedFile {
-
-		dotIndex := strings.LastIndex(fileName, ".")
-		ext, mtype := "", ""
-		if dotIndex > 0 {
-			ext = strings.ToLower(fileName[dotIndex:])
-			mtype = mime.TypeByExtension(ext)
-		}
-		contentType := part.Header.Get("Content-Type")
-		if contentType != "" && mtype != contentType {
-			mimeType = contentType //only return mime type if not deductable
-			mtype = contentType
-		}
-
-		if part.Header.Get("Content-Encoding") == "gzip" {
-			if unzipped, e := util.UnGzipData(data); e == nil {
-				originalDataSize = len(unzipped)
-			}
-			isGzipped = true
-		} else if util.IsGzippable(ext, mtype, data) {
-			if compressedData, err := util.GzipData(data); err == nil {
-				if len(data) > len(compressedData) {
-					data = compressedData
-					isGzipped = true
-				}
-			}
-		}
-	}
-
-	return
-}

weed/storage/needle/needle_parse_upload.go

@@ -0,0 +1,166 @@
+package needle
+
+import (
+	"fmt"
+	"io"
+	"io/ioutil"
+	"mime"
+	"net/http"
+	"path"
+	"strconv"
+	"strings"
+
+	"github.com/chrislusf/seaweedfs/weed/glog"
+	"github.com/chrislusf/seaweedfs/weed/util"
+)
+
+type ParsedUpload struct {
+	FileName         string
+	Data             []byte
+	MimeType         string
+	PairMap          map[string]string
+	IsGzipped        bool
+	OriginalDataSize int
+	ModifiedTime     uint64
+	Ttl              *TTL
+	IsChunkedFile    bool
+	UncompressedData []byte
+}
+
+func ParseUpload(r *http.Request, sizeLimit int64) (pu *ParsedUpload, e error) {
+	pu = &ParsedUpload{}
+	pu.PairMap = make(map[string]string)
+	for k, v := range r.Header {
+		if len(v) > 0 && strings.HasPrefix(k, PairNamePrefix) {
+			pu.PairMap[k] = v[0]
+		}
+	}
+
+	if r.Method == "POST" {
+		e = parseMultipart(r, sizeLimit, pu)
+	} else {
+		e = parsePut(r, sizeLimit, pu)
+	}
+	if e != nil {
+		return
+	}
+
+	pu.ModifiedTime, _ = strconv.ParseUint(r.FormValue("ts"), 10, 64)
+	pu.Ttl, _ = ReadTTL(r.FormValue("ttl"))
+
+	pu.OriginalDataSize = len(pu.Data)
+	pu.UncompressedData = pu.Data
+	if pu.IsGzipped {
+		if unzipped, e := util.UnGzipData(pu.Data); e == nil {
+			pu.OriginalDataSize = len(unzipped)
+			pu.UncompressedData = unzipped
+		}
+	} else if shouldGzip, _ := util.IsGzippableFileType("", pu.MimeType); shouldGzip {
+		if compressedData, err := util.GzipData(pu.Data); err == nil {
+			pu.Data = compressedData
+			pu.IsGzipped = true
+		}
+	}
+
+	return
+}
+
+func parsePut(r *http.Request, sizeLimit int64, pu *ParsedUpload) (e error) {
+	pu.IsGzipped = r.Header.Get("Content-Encoding") == "gzip"
+	pu.MimeType = r.Header.Get("Content-Type")
+	pu.FileName = ""
+	pu.Data, e = ioutil.ReadAll(io.LimitReader(r.Body, sizeLimit+1))
+	if e == io.EOF || int64(pu.OriginalDataSize) == sizeLimit+1 {
+		io.Copy(ioutil.Discard, r.Body)
+	}
+	r.Body.Close()
+	return nil
+}
+
+func parseMultipart(r *http.Request, sizeLimit int64, pu *ParsedUpload) (e error) {
+	defer func() {
+		if e != nil && r.Body != nil {
+			io.Copy(ioutil.Discard, r.Body)
+			r.Body.Close()
+		}
+	}()
+	form, fe := r.MultipartReader()
+	if fe != nil {
+		glog.V(0).Infoln("MultipartReader [ERROR]", fe)
+		e = fe
+		return
+	}
+
+	//first multi-part item
+	part, fe := form.NextPart()
+	if fe != nil {
+		glog.V(0).Infoln("Reading Multi part [ERROR]", fe)
+		e = fe
+		return
+	}
+
+	pu.FileName = part.FileName()
+	if pu.FileName != "" {
+		pu.FileName = path.Base(pu.FileName)
+	}
+
+	pu.Data, e = ioutil.ReadAll(io.LimitReader(part, sizeLimit+1))
+	if e != nil {
+		glog.V(0).Infoln("Reading Content [ERROR]", e)
+		return
+	}
+	if len(pu.Data) == int(sizeLimit)+1 {
+		e = fmt.Errorf("file over the limited %d bytes", sizeLimit)
+		return
+	}
+
+	//if the filename is empty string, do a search on the other multi-part items
+	for pu.FileName == "" {
+		part2, fe := form.NextPart()
+		if fe != nil {
+			break // no more or on error, just safely break
+		}
+
+		fName := part2.FileName()
+
+		//found the first <file type> multi-part has filename
+		if fName != "" {
+			data2, fe2 := ioutil.ReadAll(io.LimitReader(part2, sizeLimit+1))
+			if fe2 != nil {
+				glog.V(0).Infoln("Reading Content [ERROR]", fe2)
+				e = fe2
+				return
+			}
+			if len(data2) == int(sizeLimit)+1 {
+				e = fmt.Errorf("file over the limited %d bytes", sizeLimit)
+				return
+			}
+
+			//update
+			pu.Data = data2
+			pu.FileName = path.Base(fName)
+			break
+		}
+	}
+
+	pu.IsChunkedFile, _ = strconv.ParseBool(r.FormValue("cm"))
+
+	if !pu.IsChunkedFile {
+
+		dotIndex := strings.LastIndex(pu.FileName, ".")
+		ext, mtype := "", ""
+		if dotIndex > 0 {
+			ext = strings.ToLower(pu.FileName[dotIndex:])
+			mtype = mime.TypeByExtension(ext)
+		}
+		contentType := part.Header.Get("Content-Type")
+		if contentType != "" && contentType != "application/octet-stream" && mtype != contentType {
+			pu.MimeType = contentType //only return mime type if not deductable
+			mtype = contentType
+		}
+
+		pu.IsGzipped = part.Header.Get("Content-Encoding") == "gzip"
+	}
+
+	return
+}

weed/util/cipher.go

@@ -1,11 +1,14 @@
 package util
 
 import (
+	"bytes"
 	"crypto/aes"
 	"crypto/cipher"
 	"crypto/rand"
 	"errors"
+	"fmt"
 	"io"
+	"io/ioutil"
 
 	"github.com/chrislusf/seaweedfs/weed/glog"
 )
@@ -58,3 +61,21 @@ func Decrypt(ciphertext []byte, key CipherKey) ([]byte, error) {
 	nonce, ciphertext := ciphertext[:nonceSize], ciphertext[nonceSize:]
 	return gcm.Open(nil, nonce, ciphertext, nil)
 }
+
+func EncryptReader(clearReader io.Reader) (cipherKey CipherKey, encryptedReader io.ReadCloser, clearDataLen, encryptedDataLen int, err error) {
+	clearData, err := ioutil.ReadAll(clearReader)
+	if err != nil {
+		err = fmt.Errorf("read raw input: %v", err)
+		return
+	}
+	clearDataLen = len(clearData)
+	cipherKey = GenCipherKey()
+	encryptedData, err := Encrypt(clearData, cipherKey)
+	if err != nil {
+		err = fmt.Errorf("encrypt input: %v", err)
+		return
+	}
+	encryptedDataLen = len(encryptedData)
+	encryptedReader = ioutil.NopCloser(bytes.NewReader(encryptedData))
+	return
+}