2018-05-28 06:53:10 +00:00
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package weed_server
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import (
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"bytes"
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"io"
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2018-05-28 06:59:49 +00:00
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"io/ioutil"
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2018-05-28 06:53:10 +00:00
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"net/http"
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"path"
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"strconv"
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2018-05-28 06:59:49 +00:00
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"time"
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2018-05-28 06:53:10 +00:00
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"github.com/chrislusf/seaweedfs/weed/filer2"
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"github.com/chrislusf/seaweedfs/weed/glog"
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"github.com/chrislusf/seaweedfs/weed/operation"
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"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
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2018-06-10 23:57:32 +00:00
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"github.com/chrislusf/seaweedfs/weed/util"
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2018-05-28 06:53:10 +00:00
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)
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2018-07-14 20:36:28 +00:00
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func (fs *FilerServer) autoChunk(w http.ResponseWriter, r *http.Request, replication string, collection string, dataCenter string) bool {
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2018-05-28 06:53:10 +00:00
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if r.Method != "POST" {
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glog.V(4).Infoln("AutoChunking not supported for method", r.Method)
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return false
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}
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// autoChunking can be set at the command-line level or as a query param. Query param overrides command-line
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query := r.URL.Query()
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parsedMaxMB, _ := strconv.ParseInt(query.Get("maxMB"), 10, 32)
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maxMB := int32(parsedMaxMB)
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2018-07-07 09:18:47 +00:00
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if maxMB <= 0 && fs.option.MaxMB > 0 {
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maxMB = int32(fs.option.MaxMB)
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2018-05-28 06:53:10 +00:00
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}
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if maxMB <= 0 {
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glog.V(4).Infoln("AutoChunking not enabled")
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return false
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}
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glog.V(4).Infoln("AutoChunking level set to", maxMB, "(MB)")
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chunkSize := 1024 * 1024 * maxMB
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contentLength := int64(0)
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if contentLengthHeader := r.Header["Content-Length"]; len(contentLengthHeader) == 1 {
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contentLength, _ = strconv.ParseInt(contentLengthHeader[0], 10, 64)
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if contentLength <= int64(chunkSize) {
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glog.V(4).Infoln("Content-Length of", contentLength, "is less than the chunk size of", chunkSize, "so autoChunking will be skipped.")
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return false
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}
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}
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if contentLength <= 0 {
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glog.V(4).Infoln("Content-Length value is missing or unexpected so autoChunking will be skipped.")
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return false
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}
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2018-07-14 20:36:28 +00:00
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reply, err := fs.doAutoChunk(w, r, contentLength, chunkSize, replication, collection, dataCenter)
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2018-05-28 06:53:10 +00:00
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if err != nil {
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writeJsonError(w, r, http.StatusInternalServerError, err)
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} else if reply != nil {
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writeJsonQuiet(w, r, http.StatusCreated, reply)
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}
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return true
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}
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2018-07-14 20:36:28 +00:00
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func (fs *FilerServer) doAutoChunk(w http.ResponseWriter, r *http.Request, contentLength int64, chunkSize int32, replication string, collection string, dataCenter string) (filerResult *FilerPostResult, replyerr error) {
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2018-05-28 06:53:10 +00:00
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multipartReader, multipartReaderErr := r.MultipartReader()
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if multipartReaderErr != nil {
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return nil, multipartReaderErr
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}
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part1, part1Err := multipartReader.NextPart()
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if part1Err != nil {
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return nil, part1Err
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}
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fileName := part1.FileName()
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if fileName != "" {
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fileName = path.Base(fileName)
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}
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var fileChunks []*filer_pb.FileChunk
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totalBytesRead := int64(0)
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tmpBufferSize := int32(1024 * 1024)
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tmpBuffer := bytes.NewBuffer(make([]byte, 0, tmpBufferSize))
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chunkBuf := make([]byte, chunkSize+tmpBufferSize, chunkSize+tmpBufferSize) // chunk size plus a little overflow
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chunkBufOffset := int32(0)
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chunkOffset := int64(0)
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writtenChunks := 0
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filerResult = &FilerPostResult{
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Name: fileName,
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}
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for totalBytesRead < contentLength {
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tmpBuffer.Reset()
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bytesRead, readErr := io.CopyN(tmpBuffer, part1, int64(tmpBufferSize))
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readFully := readErr != nil && readErr == io.EOF
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tmpBuf := tmpBuffer.Bytes()
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bytesToCopy := tmpBuf[0:int(bytesRead)]
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copy(chunkBuf[chunkBufOffset:chunkBufOffset+int32(bytesRead)], bytesToCopy)
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chunkBufOffset = chunkBufOffset + int32(bytesRead)
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if chunkBufOffset >= chunkSize || readFully || (chunkBufOffset > 0 && bytesRead == 0) {
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writtenChunks = writtenChunks + 1
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2018-07-14 20:36:28 +00:00
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fileId, urlLocation, assignErr := fs.assignNewFileInfo(w, r, replication, collection, dataCenter)
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2018-05-28 06:53:10 +00:00
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if assignErr != nil {
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return nil, assignErr
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}
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// upload the chunk to the volume server
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chunkName := fileName + "_chunk_" + strconv.FormatInt(int64(len(fileChunks)+1), 10)
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uploadErr := fs.doUpload(urlLocation, w, r, chunkBuf[0:chunkBufOffset], chunkName, "application/octet-stream", fileId)
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if uploadErr != nil {
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return nil, uploadErr
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}
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// Save to chunk manifest structure
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fileChunks = append(fileChunks,
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&filer_pb.FileChunk{
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FileId: fileId,
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Offset: chunkOffset,
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Size: uint64(chunkBufOffset),
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Mtime: time.Now().UnixNano(),
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},
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)
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// reset variables for the next chunk
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chunkBufOffset = 0
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chunkOffset = totalBytesRead + int64(bytesRead)
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}
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totalBytesRead = totalBytesRead + int64(bytesRead)
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if bytesRead == 0 || readFully {
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break
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}
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if readErr != nil {
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return nil, readErr
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}
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}
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path := r.URL.Path
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// also delete the old fid unless PUT operation
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if r.Method != "PUT" {
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if entry, err := fs.filer.FindEntry(filer2.FullPath(path)); err == nil {
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for _, chunk := range entry.Chunks {
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oldFid := chunk.FileId
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2018-06-01 07:39:39 +00:00
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operation.DeleteFile(fs.filer.GetMaster(), oldFid, fs.jwt(oldFid))
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2018-05-28 06:53:10 +00:00
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}
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} else if err != nil {
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glog.V(0).Infof("error %v occur when finding %s in filer store", err, path)
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}
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}
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glog.V(4).Infoln("saving", path)
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entry := &filer2.Entry{
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FullPath: filer2.FullPath(path),
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Attr: filer2.Attr{
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2018-06-10 23:57:32 +00:00
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Mtime: time.Now(),
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Crtime: time.Now(),
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Mode: 0660,
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Replication: replication,
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Collection: collection,
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TtlSec: int32(util.ParseInt(r.URL.Query().Get("ttl"), 0)),
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2018-05-28 06:53:10 +00:00
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},
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Chunks: fileChunks,
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}
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if db_err := fs.filer.CreateEntry(entry); db_err != nil {
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replyerr = db_err
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filerResult.Error = db_err.Error()
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glog.V(0).Infof("failing to write %s to filer server : %v", path, db_err)
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return
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}
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return
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}
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func (fs *FilerServer) doUpload(urlLocation string, w http.ResponseWriter, r *http.Request, chunkBuf []byte, fileName string, contentType string, fileId string) (err error) {
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err = nil
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ioReader := ioutil.NopCloser(bytes.NewBuffer(chunkBuf))
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uploadResult, uploadError := operation.Upload(urlLocation, fileName, ioReader, false, contentType, nil, fs.jwt(fileId))
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if uploadResult != nil {
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glog.V(0).Infoln("Chunk upload result. Name:", uploadResult.Name, "Fid:", fileId, "Size:", uploadResult.Size)
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}
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if uploadError != nil {
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err = uploadError
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}
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return
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}
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