mirror of
https://github.com/seaweedfs/seaweedfs.git
synced 2024-01-19 02:48:24 +00:00
378 lines
10 KiB
Go
378 lines
10 KiB
Go
package weed_server
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import (
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"context"
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"fmt"
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"io"
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"net/http"
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"os"
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"path"
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"strconv"
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"strings"
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"time"
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"github.com/chrislusf/seaweedfs/weed/filer"
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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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xhttp "github.com/chrislusf/seaweedfs/weed/s3api/http"
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"github.com/chrislusf/seaweedfs/weed/stats"
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"github.com/chrislusf/seaweedfs/weed/storage/needle"
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"github.com/chrislusf/seaweedfs/weed/util"
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)
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func (fs *FilerServer) autoChunk(ctx context.Context, w http.ResponseWriter, r *http.Request, contentLength int64, so *operation.StorageOption) {
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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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if maxMB <= 0 && fs.option.MaxMB > 0 {
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maxMB = int32(fs.option.MaxMB)
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}
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chunkSize := 1024 * 1024 * maxMB
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stats.FilerRequestCounter.WithLabelValues("chunk").Inc()
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start := time.Now()
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defer func() {
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stats.FilerRequestHistogram.WithLabelValues("chunk").Observe(time.Since(start).Seconds())
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}()
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var reply *FilerPostResult
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var err error
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var md5bytes []byte
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if r.Method == "POST" {
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if r.Header.Get("Content-Type") == "" && strings.HasSuffix(r.URL.Path, "/") {
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reply, err = fs.mkdir(ctx, w, r)
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} else {
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reply, md5bytes, err = fs.doPostAutoChunk(ctx, w, r, chunkSize, contentLength, so)
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}
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} else {
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reply, md5bytes, err = fs.doPutAutoChunk(ctx, w, r, chunkSize, contentLength, so)
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}
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if err != nil {
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if strings.HasPrefix(err.Error(), "read input:") {
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writeJsonError(w, r, 499, err)
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} else if strings.HasSuffix(err.Error(), "is a file") {
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writeJsonError(w, r, http.StatusConflict, err)
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} else {
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writeJsonError(w, r, http.StatusInternalServerError, err)
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}
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} else if reply != nil {
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if len(md5bytes) > 0 {
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md5InBase64 := util.Base64Encode(md5bytes)
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w.Header().Set("Content-MD5", md5InBase64)
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}
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writeJsonQuiet(w, r, http.StatusCreated, reply)
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}
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}
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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) {
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multipartReader, multipartReaderErr := r.MultipartReader()
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if multipartReaderErr != nil {
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return nil, 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, 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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contentType := part1.Header.Get("Content-Type")
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if contentType == "application/octet-stream" {
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contentType = ""
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}
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fileChunks, md5Hash, chunkOffset, err, smallContent := fs.uploadReaderToChunks(w, r, part1, chunkSize, fileName, contentType, contentLength, so)
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if err != nil {
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return nil, nil, err
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}
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md5bytes = md5Hash.Sum(nil)
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filerResult, replyerr = fs.saveMetaData(ctx, r, fileName, contentType, so, md5bytes, fileChunks, chunkOffset, smallContent)
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if replyerr != nil {
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fs.filer.DeleteChunks(fileChunks)
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}
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return
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}
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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) {
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fileName := path.Base(r.URL.Path)
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contentType := r.Header.Get("Content-Type")
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if contentType == "application/octet-stream" {
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contentType = ""
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}
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fileChunks, md5Hash, chunkOffset, err, smallContent := fs.uploadReaderToChunks(w, r, r.Body, chunkSize, fileName, contentType, contentLength, so)
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if err != nil {
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return nil, nil, err
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}
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md5bytes = md5Hash.Sum(nil)
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filerResult, replyerr = fs.saveMetaData(ctx, r, fileName, contentType, so, md5bytes, fileChunks, chunkOffset, smallContent)
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if replyerr != nil {
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fs.filer.DeleteChunks(fileChunks)
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}
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return
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}
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func isAppend(r *http.Request) bool {
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return r.URL.Query().Get("op") == "append"
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}
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func skipCheckParentDirEntry(r *http.Request) bool {
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return r.URL.Query().Get("skipCheckParentDir") == "true"
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}
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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) {
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// detect file mode
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modeStr := r.URL.Query().Get("mode")
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if modeStr == "" {
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modeStr = "0660"
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}
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mode, err := strconv.ParseUint(modeStr, 8, 32)
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if err != nil {
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glog.Errorf("Invalid mode format: %s, use 0660 by default", modeStr)
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mode = 0660
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}
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// fix the path
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path := r.URL.Path
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if strings.HasSuffix(path, "/") {
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if fileName != "" {
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path += fileName
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}
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} else {
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if fileName != "" {
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if possibleDirEntry, findDirErr := fs.filer.FindEntry(ctx, util.FullPath(path)); findDirErr == nil {
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if possibleDirEntry.IsDirectory() {
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path += "/" + fileName
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}
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}
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}
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}
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var entry *filer.Entry
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var newChunks []*filer_pb.FileChunk
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var mergedChunks []*filer_pb.FileChunk
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isAppend := isAppend(r)
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isOffsetWrite := len(fileChunks) > 0 && fileChunks[0].Offset > 0
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// when it is an append
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if isAppend || isOffsetWrite {
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existingEntry, findErr := fs.filer.FindEntry(ctx, util.FullPath(path))
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if findErr != nil && findErr != filer_pb.ErrNotFound {
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glog.V(0).Infof("failing to find %s: %v", path, findErr)
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}
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entry = existingEntry
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}
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if entry != nil {
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entry.Mtime = time.Now()
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entry.Md5 = nil
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// adjust chunk offsets
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if isAppend {
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for _, chunk := range fileChunks {
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chunk.Offset += int64(entry.FileSize)
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}
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entry.FileSize += uint64(chunkOffset)
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}
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newChunks = append(entry.Chunks, fileChunks...)
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// TODO
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if len(entry.Content) > 0 {
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replyerr = fmt.Errorf("append to small file is not supported yet")
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return
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}
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} else {
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glog.V(4).Infoln("saving", path)
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newChunks = fileChunks
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entry = &filer.Entry{
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FullPath: util.FullPath(path),
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Attr: filer.Attr{
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Mtime: time.Now(),
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Crtime: time.Now(),
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Mode: os.FileMode(mode),
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Uid: OS_UID,
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Gid: OS_GID,
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Replication: so.Replication,
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Collection: so.Collection,
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TtlSec: so.TtlSeconds,
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DiskType: so.DiskType,
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Mime: contentType,
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Md5: md5bytes,
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FileSize: uint64(chunkOffset),
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},
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Content: content,
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}
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}
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// maybe concatenate small chunks into one whole chunk
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mergedChunks, replyerr = fs.maybeMergeChunks(so, newChunks)
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if replyerr != nil {
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glog.V(0).Infof("merge chunks %s: %v", r.RequestURI, replyerr)
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mergedChunks = newChunks
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}
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// maybe compact entry chunks
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mergedChunks, replyerr = filer.MaybeManifestize(fs.saveAsChunk(so), mergedChunks)
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if replyerr != nil {
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glog.V(0).Infof("manifestize %s: %v", r.RequestURI, replyerr)
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return
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}
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entry.Chunks = mergedChunks
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if isOffsetWrite {
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entry.Md5 = nil
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entry.FileSize = entry.Size()
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}
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filerResult = &FilerPostResult{
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Name: fileName,
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Size: int64(entry.FileSize),
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}
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entry.Extended = SaveAmzMetaData(r, entry.Extended, false)
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for k, v := range r.Header {
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if len(v) > 0 && len(v[0]) > 0 {
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if strings.HasPrefix(k, needle.PairNamePrefix) || k == "Cache-Control" || k == "Expires" || k == "Content-Disposition" {
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entry.Extended[k] = []byte(v[0])
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}
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if k == "Response-Content-Disposition" {
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entry.Extended["Content-Disposition"] = []byte(v[0])
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}
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}
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}
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if dbErr := fs.filer.CreateEntry(ctx, entry, false, false, nil, skipCheckParentDirEntry(r)); dbErr != nil {
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replyerr = dbErr
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filerResult.Error = dbErr.Error()
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glog.V(0).Infof("failing to write %s to filer server : %v", path, dbErr)
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}
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return filerResult, replyerr
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}
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func (fs *FilerServer) saveAsChunk(so *operation.StorageOption) filer.SaveDataAsChunkFunctionType {
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return func(reader io.Reader, name string, offset int64) (*filer_pb.FileChunk, string, string, error) {
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// assign one file id for one chunk
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fileId, urlLocation, auth, assignErr := fs.assignNewFileInfo(so)
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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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uploadOption := &operation.UploadOption{
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UploadUrl: urlLocation,
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Filename: name,
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Cipher: fs.option.Cipher,
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IsInputCompressed: false,
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MimeType: "",
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PairMap: nil,
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Jwt: auth,
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}
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uploadResult, uploadErr, _ := operation.Upload(reader, uploadOption)
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if uploadErr != nil {
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return nil, "", "", uploadErr
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}
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return uploadResult.ToPbFileChunk(fileId, offset), so.Collection, so.Replication, nil
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}
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}
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func (fs *FilerServer) mkdir(ctx context.Context, w http.ResponseWriter, r *http.Request) (filerResult *FilerPostResult, replyerr error) {
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// detect file mode
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modeStr := r.URL.Query().Get("mode")
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if modeStr == "" {
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modeStr = "0660"
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}
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mode, err := strconv.ParseUint(modeStr, 8, 32)
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if err != nil {
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glog.Errorf("Invalid mode format: %s, use 0660 by default", modeStr)
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mode = 0660
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}
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// fix the path
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path := r.URL.Path
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if strings.HasSuffix(path, "/") {
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path = path[:len(path)-1]
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}
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existingEntry, err := fs.filer.FindEntry(ctx, util.FullPath(path))
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if err == nil && existingEntry != nil {
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replyerr = fmt.Errorf("dir %s already exists", path)
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return
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}
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glog.V(4).Infoln("mkdir", path)
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entry := &filer.Entry{
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FullPath: util.FullPath(path),
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Attr: filer.Attr{
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Mtime: time.Now(),
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Crtime: time.Now(),
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Mode: os.FileMode(mode) | os.ModeDir,
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Uid: OS_UID,
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Gid: OS_GID,
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},
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}
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filerResult = &FilerPostResult{
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Name: util.FullPath(path).Name(),
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}
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if dbErr := fs.filer.CreateEntry(ctx, entry, false, false, nil, false); dbErr != nil {
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replyerr = dbErr
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filerResult.Error = dbErr.Error()
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glog.V(0).Infof("failing to create dir %s on filer server : %v", path, dbErr)
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}
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return filerResult, replyerr
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}
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func SaveAmzMetaData(r *http.Request, existing map[string][]byte, isReplace bool) (metadata map[string][]byte) {
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metadata = make(map[string][]byte)
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if !isReplace {
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for k, v := range existing {
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metadata[k] = v
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}
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}
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if sc := r.Header.Get(xhttp.AmzStorageClass); sc != "" {
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metadata[xhttp.AmzStorageClass] = []byte(sc)
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}
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if tags := r.Header.Get(xhttp.AmzObjectTagging); tags != "" {
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for _, v := range strings.Split(tags, "&") {
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tag := strings.Split(v, "=")
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if len(tag) == 2 {
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metadata[xhttp.AmzObjectTagging+"-"+tag[0]] = []byte(tag[1])
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} else if len(tag) == 1 {
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metadata[xhttp.AmzObjectTagging+"-"+tag[0]] = nil
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}
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}
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}
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for header, values := range r.Header {
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if strings.HasPrefix(header, xhttp.AmzUserMetaPrefix) {
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for _, value := range values {
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metadata[header] = []byte(value)
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}
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}
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}
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return
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}
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