mirror of
https://github.com/chrislusf/seaweedfs
synced 2024-09-08 10:00:37 +02:00
190 lines
5.5 KiB
Go
190 lines
5.5 KiB
Go
package weed_server
|
|
|
|
import (
|
|
"bytes"
|
|
"io"
|
|
"io/ioutil"
|
|
"net/http"
|
|
"path"
|
|
"strconv"
|
|
"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"
|
|
)
|
|
|
|
func (fs *FilerServer) autoChunk(w http.ResponseWriter, r *http.Request, replication string, collection string) bool {
|
|
if r.Method != "POST" {
|
|
glog.V(4).Infoln("AutoChunking not supported for method", r.Method)
|
|
return false
|
|
}
|
|
|
|
// autoChunking can be set at the command-line level or as a query param. Query param overrides command-line
|
|
query := r.URL.Query()
|
|
|
|
parsedMaxMB, _ := strconv.ParseInt(query.Get("maxMB"), 10, 32)
|
|
maxMB := int32(parsedMaxMB)
|
|
if maxMB <= 0 && fs.maxMB > 0 {
|
|
maxMB = int32(fs.maxMB)
|
|
}
|
|
if maxMB <= 0 {
|
|
glog.V(4).Infoln("AutoChunking not enabled")
|
|
return false
|
|
}
|
|
glog.V(4).Infoln("AutoChunking level set to", maxMB, "(MB)")
|
|
|
|
chunkSize := 1024 * 1024 * maxMB
|
|
|
|
contentLength := int64(0)
|
|
if contentLengthHeader := r.Header["Content-Length"]; len(contentLengthHeader) == 1 {
|
|
contentLength, _ = strconv.ParseInt(contentLengthHeader[0], 10, 64)
|
|
if contentLength <= int64(chunkSize) {
|
|
glog.V(4).Infoln("Content-Length of", contentLength, "is less than the chunk size of", chunkSize, "so autoChunking will be skipped.")
|
|
return false
|
|
}
|
|
}
|
|
|
|
if contentLength <= 0 {
|
|
glog.V(4).Infoln("Content-Length value is missing or unexpected so autoChunking will be skipped.")
|
|
return false
|
|
}
|
|
|
|
reply, err := fs.doAutoChunk(w, r, contentLength, chunkSize, replication, collection)
|
|
if err != nil {
|
|
writeJsonError(w, r, http.StatusInternalServerError, err)
|
|
} else if reply != nil {
|
|
writeJsonQuiet(w, r, http.StatusCreated, reply)
|
|
}
|
|
return true
|
|
}
|
|
|
|
func (fs *FilerServer) doAutoChunk(w http.ResponseWriter, r *http.Request, contentLength int64, chunkSize int32, replication string, collection string) (filerResult *FilerPostResult, replyerr error) {
|
|
|
|
multipartReader, multipartReaderErr := r.MultipartReader()
|
|
if multipartReaderErr != nil {
|
|
return nil, multipartReaderErr
|
|
}
|
|
|
|
part1, part1Err := multipartReader.NextPart()
|
|
if part1Err != nil {
|
|
return nil, part1Err
|
|
}
|
|
|
|
fileName := part1.FileName()
|
|
if fileName != "" {
|
|
fileName = path.Base(fileName)
|
|
}
|
|
|
|
var fileChunks []*filer_pb.FileChunk
|
|
|
|
totalBytesRead := int64(0)
|
|
tmpBufferSize := int32(1024 * 1024)
|
|
tmpBuffer := bytes.NewBuffer(make([]byte, 0, tmpBufferSize))
|
|
chunkBuf := make([]byte, chunkSize+tmpBufferSize, chunkSize+tmpBufferSize) // chunk size plus a little overflow
|
|
chunkBufOffset := int32(0)
|
|
chunkOffset := int64(0)
|
|
writtenChunks := 0
|
|
|
|
filerResult = &FilerPostResult{
|
|
Name: fileName,
|
|
}
|
|
|
|
for totalBytesRead < contentLength {
|
|
tmpBuffer.Reset()
|
|
bytesRead, readErr := io.CopyN(tmpBuffer, part1, int64(tmpBufferSize))
|
|
readFully := readErr != nil && readErr == io.EOF
|
|
tmpBuf := tmpBuffer.Bytes()
|
|
bytesToCopy := tmpBuf[0:int(bytesRead)]
|
|
|
|
copy(chunkBuf[chunkBufOffset:chunkBufOffset+int32(bytesRead)], bytesToCopy)
|
|
chunkBufOffset = chunkBufOffset + int32(bytesRead)
|
|
|
|
if chunkBufOffset >= chunkSize || readFully || (chunkBufOffset > 0 && bytesRead == 0) {
|
|
writtenChunks = writtenChunks + 1
|
|
fileId, urlLocation, assignErr := fs.assignNewFileInfo(w, r, replication, collection)
|
|
if assignErr != nil {
|
|
return nil, assignErr
|
|
}
|
|
|
|
// upload the chunk to the volume server
|
|
chunkName := fileName + "_chunk_" + strconv.FormatInt(int64(len(fileChunks)+1), 10)
|
|
uploadErr := fs.doUpload(urlLocation, w, r, chunkBuf[0:chunkBufOffset], chunkName, "application/octet-stream", fileId)
|
|
if uploadErr != nil {
|
|
return nil, uploadErr
|
|
}
|
|
|
|
// Save to chunk manifest structure
|
|
fileChunks = append(fileChunks,
|
|
&filer_pb.FileChunk{
|
|
FileId: fileId,
|
|
Offset: chunkOffset,
|
|
Size: uint64(chunkBufOffset),
|
|
Mtime: time.Now().UnixNano(),
|
|
},
|
|
)
|
|
|
|
// reset variables for the next chunk
|
|
chunkBufOffset = 0
|
|
chunkOffset = totalBytesRead + int64(bytesRead)
|
|
}
|
|
|
|
totalBytesRead = totalBytesRead + int64(bytesRead)
|
|
|
|
if bytesRead == 0 || readFully {
|
|
break
|
|
}
|
|
|
|
if readErr != nil {
|
|
return nil, readErr
|
|
}
|
|
}
|
|
|
|
path := r.URL.Path
|
|
// also delete the old fid unless PUT operation
|
|
if r.Method != "PUT" {
|
|
if entry, err := fs.filer.FindEntry(filer2.FullPath(path)); err == nil {
|
|
for _, chunk := range entry.Chunks {
|
|
oldFid := chunk.FileId
|
|
operation.DeleteFile(fs.filer.GetMaster(), oldFid, fs.jwt(oldFid))
|
|
}
|
|
} else if err != nil {
|
|
glog.V(0).Infof("error %v occur when finding %s in filer store", err, path)
|
|
}
|
|
}
|
|
|
|
glog.V(4).Infoln("saving", path)
|
|
entry := &filer2.Entry{
|
|
FullPath: filer2.FullPath(path),
|
|
Attr: filer2.Attr{
|
|
Mtime: time.Now(),
|
|
Crtime: time.Now(),
|
|
Mode: 0660,
|
|
},
|
|
Chunks: fileChunks,
|
|
}
|
|
if db_err := fs.filer.CreateEntry(entry); db_err != nil {
|
|
replyerr = db_err
|
|
filerResult.Error = db_err.Error()
|
|
glog.V(0).Infof("failing to write %s to filer server : %v", path, db_err)
|
|
return
|
|
}
|
|
|
|
return
|
|
}
|
|
|
|
func (fs *FilerServer) doUpload(urlLocation string, w http.ResponseWriter, r *http.Request, chunkBuf []byte, fileName string, contentType string, fileId string) (err error) {
|
|
err = nil
|
|
|
|
ioReader := ioutil.NopCloser(bytes.NewBuffer(chunkBuf))
|
|
uploadResult, uploadError := operation.Upload(urlLocation, fileName, ioReader, false, contentType, nil, fs.jwt(fileId))
|
|
if uploadResult != nil {
|
|
glog.V(0).Infoln("Chunk upload result. Name:", uploadResult.Name, "Fid:", fileId, "Size:", uploadResult.Size)
|
|
}
|
|
if uploadError != nil {
|
|
err = uploadError
|
|
}
|
|
return
|
|
}
|