package weed_server import ( "context" "crypto/md5" "fmt" "hash" "io" "io/ioutil" "net/http" "os" "path" "strconv" "strings" "time" "github.com/chrislusf/seaweedfs/weed/filer" "github.com/chrislusf/seaweedfs/weed/glog" "github.com/chrislusf/seaweedfs/weed/operation" "github.com/chrislusf/seaweedfs/weed/pb/filer_pb" xhttp "github.com/chrislusf/seaweedfs/weed/s3api/http" "github.com/chrislusf/seaweedfs/weed/security" "github.com/chrislusf/seaweedfs/weed/stats" "github.com/chrislusf/seaweedfs/weed/storage/needle" "github.com/chrislusf/seaweedfs/weed/util" ) func (fs *FilerServer) autoChunk(ctx context.Context, w http.ResponseWriter, r *http.Request, so *operation.StorageOption) { // 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.option.MaxMB > 0 { maxMB = int32(fs.option.MaxMB) } chunkSize := 1024 * 1024 * maxMB stats.FilerRequestCounter.WithLabelValues("chunk").Inc() start := time.Now() defer func() { stats.FilerRequestHistogram.WithLabelValues("chunk").Observe(time.Since(start).Seconds()) }() var reply *FilerPostResult var err error var md5bytes []byte if r.Method == "POST" { if r.Header.Get("Content-Type") == "" && strings.HasSuffix(r.URL.Path, "/") { reply, err = fs.mkdir(ctx, w, r) } else { reply, md5bytes, err = fs.doPostAutoChunk(ctx, w, r, chunkSize, so) } } else { reply, md5bytes, err = fs.doPutAutoChunk(ctx, w, r, chunkSize, so) } if err != nil { if strings.HasPrefix(err.Error(), "read input:") { writeJsonError(w, r, 499, err) } else { writeJsonError(w, r, http.StatusInternalServerError, err) } } else if reply != nil { if len(md5bytes) > 0 { w.Header().Set("Content-MD5", util.Base64Encode(md5bytes)) } writeJsonQuiet(w, r, http.StatusCreated, reply) } } func (fs *FilerServer) doPostAutoChunk(ctx context.Context, w http.ResponseWriter, r *http.Request, chunkSize int32, so *operation.StorageOption) (filerResult *FilerPostResult, md5bytes []byte, replyerr error) { multipartReader, multipartReaderErr := r.MultipartReader() if multipartReaderErr != nil { return nil, nil, multipartReaderErr } part1, part1Err := multipartReader.NextPart() if part1Err != nil { return nil, nil, part1Err } fileName := part1.FileName() if fileName != "" { fileName = path.Base(fileName) } contentType := part1.Header.Get("Content-Type") if contentType == "application/octet-stream" { contentType = "" } fileChunks, md5Hash, chunkOffset, err, smallContent := fs.uploadReaderToChunks(w, r, part1, chunkSize, fileName, contentType, so) if err != nil { return nil, nil, err } md5bytes = md5Hash.Sum(nil) filerResult, replyerr = fs.saveMetaData(ctx, r, fileName, contentType, so, md5bytes, fileChunks, chunkOffset, smallContent) return } func (fs *FilerServer) doPutAutoChunk(ctx context.Context, w http.ResponseWriter, r *http.Request, chunkSize int32, so *operation.StorageOption) (filerResult *FilerPostResult, md5bytes []byte, replyerr error) { fileName := path.Base(r.URL.Path) contentType := r.Header.Get("Content-Type") if contentType == "application/octet-stream" { contentType = "" } fileChunks, md5Hash, chunkOffset, err, smallContent := fs.uploadReaderToChunks(w, r, r.Body, chunkSize, fileName, contentType, so) if err != nil { return nil, nil, err } md5bytes = md5Hash.Sum(nil) filerResult, replyerr = fs.saveMetaData(ctx, r, fileName, contentType, so, md5bytes, fileChunks, chunkOffset, smallContent) return } func isAppend(r *http.Request) bool { return r.URL.Query().Get("op") == "append" } func (fs *FilerServer) saveMetaData(ctx context.Context, r *http.Request, fileName string, contentType string, so *operation.StorageOption, md5bytes []byte, fileChunks []*filer_pb.FileChunk, chunkOffset int64, content []byte) (filerResult *FilerPostResult, replyerr error) { // detect file mode modeStr := r.URL.Query().Get("mode") if modeStr == "" { modeStr = "0660" } mode, err := strconv.ParseUint(modeStr, 8, 32) if err != nil { glog.Errorf("Invalid mode format: %s, use 0660 by default", modeStr) mode = 0660 } // fix the path path := r.URL.Path if strings.HasSuffix(path, "/") { if fileName != "" { path += fileName } } var entry *filer.Entry var mergedChunks []*filer_pb.FileChunk // when it is an append if isAppend(r) { existingEntry, findErr := fs.filer.FindEntry(ctx, util.FullPath(path)) if findErr != nil && findErr != filer_pb.ErrNotFound { glog.V(0).Infof("failing to find %s: %v", path, findErr) } entry = existingEntry } if entry != nil { entry.Mtime = time.Now() entry.Md5 = nil // adjust chunk offsets for _, chunk := range fileChunks { chunk.Offset += int64(entry.FileSize) } mergedChunks = append(entry.Chunks, fileChunks...) entry.FileSize += uint64(chunkOffset) // TODO if len(entry.Content) > 0 { replyerr = fmt.Errorf("append to small file is not supported yet") return } } else { glog.V(4).Infoln("saving", path) mergedChunks = fileChunks entry = &filer.Entry{ FullPath: util.FullPath(path), Attr: filer.Attr{ Mtime: time.Now(), Crtime: time.Now(), Mode: os.FileMode(mode), Uid: OS_UID, Gid: OS_GID, Replication: so.Replication, Collection: so.Collection, TtlSec: so.TtlSeconds, DiskType: so.DiskType, Mime: contentType, Md5: md5bytes, FileSize: uint64(chunkOffset), }, Content: content, } } // maybe compact entry chunks mergedChunks, replyerr = filer.MaybeManifestize(fs.saveAsChunk(so), mergedChunks) if replyerr != nil { glog.V(0).Infof("manifestize %s: %v", r.RequestURI, replyerr) return } entry.Chunks = mergedChunks filerResult = &FilerPostResult{ Name: fileName, Size: int64(entry.FileSize), } if entry.Extended == nil { entry.Extended = make(map[string][]byte) } SaveAmzMetaData(r, entry.Extended, false) for k, v := range r.Header { if len(v) > 0 && strings.HasPrefix(k, needle.PairNamePrefix) { entry.Extended[k] = []byte(v[0]) } } if dbErr := fs.filer.CreateEntry(ctx, entry, false, false, nil); dbErr != nil { fs.filer.DeleteChunks(fileChunks) replyerr = dbErr filerResult.Error = dbErr.Error() glog.V(0).Infof("failing to write %s to filer server : %v", path, dbErr) } return filerResult, replyerr } func (fs *FilerServer) uploadReaderToChunks(w http.ResponseWriter, r *http.Request, reader io.Reader, chunkSize int32, fileName, contentType string, so *operation.StorageOption) ([]*filer_pb.FileChunk, hash.Hash, int64, error, []byte) { var fileChunks []*filer_pb.FileChunk md5Hash := md5.New() var partReader = ioutil.NopCloser(io.TeeReader(reader, md5Hash)) chunkOffset := int64(0) var smallContent []byte for { limitedReader := io.LimitReader(partReader, int64(chunkSize)) data, err := ioutil.ReadAll(limitedReader) if err != nil { return nil, nil, 0, err, nil } if chunkOffset == 0 && !isAppend(r) { if len(data) < fs.option.SaveToFilerLimit || strings.HasPrefix(r.URL.Path, filer.DirectoryEtcRoot) && len(data) < 4*1024 { smallContent = data chunkOffset += int64(len(data)) break } } dataReader := util.NewBytesReader(data) // retry to assign a different file id var fileId, urlLocation string var auth security.EncodedJwt var assignErr, uploadErr error var uploadResult *operation.UploadResult for i := 0; i < 3; i++ { // assign one file id for one chunk fileId, urlLocation, auth, assignErr = fs.assignNewFileInfo(so) if assignErr != nil { return nil, nil, 0, assignErr, nil } // upload the chunk to the volume server uploadResult, uploadErr, _ = fs.doUpload(urlLocation, w, r, dataReader, fileName, contentType, nil, auth) if uploadErr != nil { time.Sleep(251 * time.Millisecond) continue } break } if uploadErr != nil { return nil, nil, 0, uploadErr, nil } // if last chunk exhausted the reader exactly at the border if uploadResult.Size == 0 { break } // Save to chunk manifest structure fileChunks = append(fileChunks, uploadResult.ToPbFileChunk(fileId, chunkOffset)) glog.V(4).Infof("uploaded %s chunk %d to %s [%d,%d)", fileName, len(fileChunks), fileId, chunkOffset, chunkOffset+int64(uploadResult.Size)) // reset variables for the next chunk chunkOffset = chunkOffset + int64(uploadResult.Size) // if last chunk was not at full chunk size, but already exhausted the reader if int64(uploadResult.Size) < int64(chunkSize) { break } } return fileChunks, md5Hash, chunkOffset, nil, smallContent } func (fs *FilerServer) doUpload(urlLocation string, w http.ResponseWriter, r *http.Request, limitedReader io.Reader, fileName string, contentType string, pairMap map[string]string, auth security.EncodedJwt) (*operation.UploadResult, error, []byte) { stats.FilerRequestCounter.WithLabelValues("chunkUpload").Inc() start := time.Now() defer func() { stats.FilerRequestHistogram.WithLabelValues("chunkUpload").Observe(time.Since(start).Seconds()) }() uploadResult, err, data := operation.Upload(urlLocation, fileName, fs.option.Cipher, limitedReader, false, contentType, pairMap, auth) if uploadResult != nil && uploadResult.RetryCount > 0 { stats.FilerRequestCounter.WithLabelValues("chunkUploadRetry").Add(float64(uploadResult.RetryCount)) } return uploadResult, err, data } func (fs *FilerServer) saveAsChunk(so *operation.StorageOption) filer.SaveDataAsChunkFunctionType { return func(reader io.Reader, name string, offset int64) (*filer_pb.FileChunk, string, string, error) { // assign one file id for one chunk fileId, urlLocation, auth, assignErr := fs.assignNewFileInfo(so) if assignErr != nil { return nil, "", "", assignErr } // upload the chunk to the volume server uploadResult, uploadErr, _ := operation.Upload(urlLocation, name, fs.option.Cipher, reader, false, "", nil, auth) if uploadErr != nil { return nil, "", "", uploadErr } return uploadResult.ToPbFileChunk(fileId, offset), so.Collection, so.Replication, nil } } func (fs *FilerServer) mkdir(ctx context.Context, w http.ResponseWriter, r *http.Request) (filerResult *FilerPostResult, replyerr error) { // detect file mode modeStr := r.URL.Query().Get("mode") if modeStr == "" { modeStr = "0660" } mode, err := strconv.ParseUint(modeStr, 8, 32) if err != nil { glog.Errorf("Invalid mode format: %s, use 0660 by default", modeStr) mode = 0660 } // fix the path path := r.URL.Path if strings.HasSuffix(path, "/") { path = path[:len(path)-1] } existingEntry, err := fs.filer.FindEntry(ctx, util.FullPath(path)) if err == nil && existingEntry != nil { replyerr = fmt.Errorf("dir %s already exists", path) return } glog.V(4).Infoln("mkdir", path) entry := &filer.Entry{ FullPath: util.FullPath(path), Attr: filer.Attr{ Mtime: time.Now(), Crtime: time.Now(), Mode: os.FileMode(mode) | os.ModeDir, Uid: OS_UID, Gid: OS_GID, }, } filerResult = &FilerPostResult{ Name: util.FullPath(path).Name(), } if dbErr := fs.filer.CreateEntry(ctx, entry, false, false, nil); dbErr != nil { replyerr = dbErr filerResult.Error = dbErr.Error() glog.V(0).Infof("failing to create dir %s on filer server : %v", path, dbErr) } return filerResult, replyerr } func SaveAmzMetaData(r *http.Request, existing map[string][]byte, isReplace bool) (metadata map[string][]byte) { metadata = make(map[string][]byte) if !isReplace { for k, v := range existing { metadata[k] = v } } if sc := r.Header.Get(xhttp.AmzStorageClass); sc != "" { metadata[xhttp.AmzStorageClass] = []byte(sc) } if tags := r.Header.Get(xhttp.AmzObjectTagging); tags != "" { for _, v := range strings.Split(tags, "&") { tag := strings.Split(v, "=") if len(tag) == 2 { metadata[xhttp.AmzObjectTagging+"-"+tag[0]] = []byte(tag[1]) } } } for header, values := range r.Header { if strings.HasPrefix(header, xhttp.AmzUserMetaPrefix) { for _, value := range values { metadata[header] = []byte(value) } } } return }