package weed_server import ( "context" "fmt" //"github.com/seaweedfs/seaweedfs/weed/s3api" "github.com/seaweedfs/seaweedfs/weed/s3api/s3_constants" "io" "net/http" "os" "path" "strconv" "strings" "time" "github.com/seaweedfs/seaweedfs/weed/filer" "github.com/seaweedfs/seaweedfs/weed/glog" "github.com/seaweedfs/seaweedfs/weed/operation" "github.com/seaweedfs/seaweedfs/weed/pb/filer_pb" "github.com/seaweedfs/seaweedfs/weed/storage/needle" "github.com/seaweedfs/seaweedfs/weed/util" ) func (fs *FilerServer) autoChunk(ctx context.Context, w http.ResponseWriter, r *http.Request, contentLength int64, 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 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, contentLength, so) } } else { reply, md5bytes, err = fs.doPutAutoChunk(ctx, w, r, chunkSize, contentLength, so) } if err != nil { if strings.HasPrefix(err.Error(), "read input:") || err.Error() == io.ErrUnexpectedEOF.Error() { writeJsonError(w, r, 499, err) } else if strings.HasSuffix(err.Error(), "is a file") { writeJsonError(w, r, http.StatusConflict, err) } else { writeJsonError(w, r, http.StatusInternalServerError, err) } } else if reply != nil { if len(md5bytes) > 0 { md5InBase64 := util.Base64Encode(md5bytes) w.Header().Set("Content-MD5", md5InBase64) } writeJsonQuiet(w, r, http.StatusCreated, reply) } } func (fs *FilerServer) doPostAutoChunk(ctx context.Context, w http.ResponseWriter, r *http.Request, chunkSize int32, contentLength int64, 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, contentLength, 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) if replyerr != nil { fs.filer.DeleteChunks(fileChunks) } return } func (fs *FilerServer) doPutAutoChunk(ctx context.Context, w http.ResponseWriter, r *http.Request, chunkSize int32, contentLength int64, 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, contentLength, 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) if replyerr != nil { fs.filer.DeleteChunks(fileChunks) } return } func isAppend(r *http.Request) bool { return r.URL.Query().Get("op") == "append" } func skipCheckParentDirEntry(r *http.Request) bool { return r.URL.Query().Get("skipCheckParentDir") == "true" } 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 } } else { if fileName != "" { if possibleDirEntry, findDirErr := fs.filer.FindEntry(ctx, util.FullPath(path)); findDirErr == nil { if possibleDirEntry.IsDirectory() { path += "/" + fileName } } } } var entry *filer.Entry var newChunks []*filer_pb.FileChunk var mergedChunks []*filer_pb.FileChunk isAppend := isAppend(r) isOffsetWrite := len(fileChunks) > 0 && fileChunks[0].Offset > 0 // when it is an append if isAppend || isOffsetWrite { 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 if isAppend { for _, chunk := range fileChunks { chunk.Offset += int64(entry.FileSize) } entry.FileSize += uint64(chunkOffset) } newChunks = append(entry.Chunks, fileChunks...) // 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) newChunks = 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, TtlSec: so.TtlSeconds, Mime: contentType, Md5: md5bytes, FileSize: uint64(chunkOffset), }, Content: content, } } // maybe concatenate small chunks into one whole chunk mergedChunks, replyerr = fs.maybeMergeChunks(so, newChunks) if replyerr != nil { glog.V(0).Infof("merge chunks %s: %v", r.RequestURI, replyerr) mergedChunks = newChunks } // 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 if isOffsetWrite { entry.Md5 = nil entry.FileSize = entry.Size() } filerResult = &FilerPostResult{ Name: fileName, Size: int64(entry.FileSize), } entry.Extended = SaveAmzMetaData(r, entry.Extended, false) for k, v := range r.Header { if len(v) > 0 && len(v[0]) > 0 { if strings.HasPrefix(k, needle.PairNamePrefix) || k == "Cache-Control" || k == "Expires" || k == "Content-Disposition" { entry.Extended[k] = []byte(v[0]) } if k == "Response-Content-Disposition" { entry.Extended["Content-Disposition"] = []byte(v[0]) } } } if dbErr := fs.filer.CreateEntry(ctx, entry, false, false, nil, skipCheckParentDirEntry(r)); dbErr != nil { 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) saveAsChunk(so *operation.StorageOption) filer.SaveDataAsChunkFunctionType { return func(reader io.Reader, name string, offset int64) (*filer_pb.FileChunk, error) { var fileId string var uploadResult *operation.UploadResult err := util.Retry("saveAsChunk", func() error { // assign one file id for one chunk assignedFileId, urlLocation, auth, assignErr := fs.assignNewFileInfo(so) if assignErr != nil { return assignErr } fileId = assignedFileId // upload the chunk to the volume server uploadOption := &operation.UploadOption{ UploadUrl: urlLocation, Filename: name, Cipher: fs.option.Cipher, IsInputCompressed: false, MimeType: "", PairMap: nil, Jwt: auth, } var uploadErr error uploadResult, uploadErr, _ = operation.Upload(reader, uploadOption) if uploadErr != nil { return uploadErr } return nil }) if err != nil { return nil, err } return uploadResult.ToPbFileChunk(fileId, offset), 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, false); 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(s3_constants.AmzStorageClass); sc != "" { metadata[s3_constants.AmzStorageClass] = []byte(sc) } if tags := r.Header.Get(s3_constants.AmzObjectTagging); tags != "" { for _, v := range strings.Split(tags, "&") { tag := strings.Split(v, "=") if len(tag) == 2 { metadata[s3_constants.AmzObjectTagging+"-"+tag[0]] = []byte(tag[1]) } else if len(tag) == 1 { metadata[s3_constants.AmzObjectTagging+"-"+tag[0]] = nil } } } for header, values := range r.Header { if strings.HasPrefix(header, s3_constants.AmzUserMetaPrefix) { for _, value := range values { metadata[header] = []byte(value) } } } //acp acp := r.Header.Get(s3_constants.ExtAcpKey) if len(acp) > 0 { metadata[s3_constants.ExtAcpKey] = []byte(acp) } return }