mirror of
https://github.com/seaweedfs/seaweedfs.git
synced 2024-01-19 02:48:24 +00:00
257 lines
8.6 KiB
Go
257 lines
8.6 KiB
Go
package weed_server
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import (
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"context"
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"crypto/md5"
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"hash"
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"io"
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"io/ioutil"
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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/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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"github.com/chrislusf/seaweedfs/weed/security"
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"github.com/chrislusf/seaweedfs/weed/stats"
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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,
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replication string, collection string, dataCenter string, ttlSec int32, ttlString string, fsync bool) {
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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("postAutoChunk").Inc()
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start := time.Now()
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defer func() {
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stats.FilerRequestHistogram.WithLabelValues("postAutoChunk").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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reply, md5bytes, err = fs.doPostAutoChunk(ctx, w, r, chunkSize, replication, collection, dataCenter, ttlSec, ttlString, fsync)
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} else {
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reply, md5bytes, err = fs.doPutAutoChunk(ctx, w, r, chunkSize, replication, collection, dataCenter, ttlSec, ttlString, fsync)
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}
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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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if len(md5bytes) > 0 {
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w.Header().Set("Content-MD5", util.Base64Encode(md5bytes))
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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, replication string, collection string, dataCenter string, ttlSec int32, ttlString string, fsync bool) (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 := fs.uploadReaderToChunks(w, r, part1, chunkSize, replication, collection, dataCenter, ttlString, fileName, contentType, fsync)
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if err != nil {
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return nil, nil, err
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}
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fileChunks, replyerr = filer2.MaybeManifestize(fs.saveAsChunk(replication, collection, dataCenter, ttlString, fsync), fileChunks)
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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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md5bytes = md5Hash.Sum(nil)
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filerResult, replyerr = fs.saveMetaData(ctx, r, fileName, replication, collection, ttlSec, contentType, md5bytes, fileChunks, chunkOffset)
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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, replication string, collection string, dataCenter string, ttlSec int32, ttlString string, fsync bool) (filerResult *FilerPostResult, md5bytes []byte, replyerr error) {
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fileName := ""
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contentType := ""
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fileChunks, md5Hash, chunkOffset, err := fs.uploadReaderToChunks(w, r, r.Body, chunkSize, replication, collection, dataCenter, ttlString, fileName, contentType, fsync)
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if err != nil {
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return nil, nil, err
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}
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fileChunks, replyerr = filer2.MaybeManifestize(fs.saveAsChunk(replication, collection, dataCenter, ttlString, fsync), fileChunks)
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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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md5bytes = md5Hash.Sum(nil)
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filerResult, replyerr = fs.saveMetaData(ctx, r, fileName, replication, collection, ttlSec, contentType, md5bytes, fileChunks, chunkOffset)
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return
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}
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func (fs *FilerServer) saveMetaData(ctx context.Context, r *http.Request, fileName string, replication string, collection string, ttlSec int32, contentType string, md5bytes []byte, fileChunks []*filer_pb.FileChunk, chunkOffset int64) (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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}
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// fix the crTime
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existingEntry, err := fs.filer.FindEntry(ctx, util.FullPath(path))
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crTime := time.Now()
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if err == nil && existingEntry != nil {
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crTime = existingEntry.Crtime
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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: util.FullPath(path),
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Attr: filer2.Attr{
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Mtime: time.Now(),
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Crtime: crTime,
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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: replication,
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Collection: collection,
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TtlSec: ttlSec,
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Mime: contentType,
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Md5: md5bytes,
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},
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Chunks: fileChunks,
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}
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filerResult = &FilerPostResult{
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Name: fileName,
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Size: chunkOffset,
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}
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if dbErr := fs.filer.CreateEntry(ctx, entry, false, false, nil); dbErr != nil {
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fs.filer.DeleteChunks(entry.Chunks)
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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) uploadReaderToChunks(w http.ResponseWriter, r *http.Request, reader io.Reader, chunkSize int32, replication string, collection string, dataCenter string, ttlString string, fileName string, contentType string, fsync bool) ([]*filer_pb.FileChunk, hash.Hash, int64, error) {
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var fileChunks []*filer_pb.FileChunk
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md5Hash := md5.New()
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var partReader = ioutil.NopCloser(io.TeeReader(reader, md5Hash))
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chunkOffset := int64(0)
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for {
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limitedReader := io.LimitReader(partReader, int64(chunkSize))
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// assign one file id for one chunk
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fileId, urlLocation, auth, assignErr := fs.assignNewFileInfo(replication, collection, dataCenter, ttlString, fsync)
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if assignErr != nil {
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return nil, nil, 0, assignErr
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}
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// upload the chunk to the volume server
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uploadResult, uploadErr := fs.doUpload(urlLocation, w, r, limitedReader, fileName, contentType, nil, auth)
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if uploadErr != nil {
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return nil, nil, 0, uploadErr
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}
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// if last chunk exhausted the reader exactly at the border
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if uploadResult.Size == 0 {
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break
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}
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// Save to chunk manifest structure
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fileChunks = append(fileChunks, uploadResult.ToPbFileChunk(fileId, chunkOffset))
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glog.V(4).Infof("uploaded %s chunk %d to %s [%d,%d)", fileName, len(fileChunks), fileId, chunkOffset, chunkOffset+int64(uploadResult.Size))
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// reset variables for the next chunk
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chunkOffset = chunkOffset + int64(uploadResult.Size)
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// if last chunk was not at full chunk size, but already exhausted the reader
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if int64(uploadResult.Size) < int64(chunkSize) {
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break
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}
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}
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return fileChunks, md5Hash, chunkOffset, nil
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}
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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) {
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stats.FilerRequestCounter.WithLabelValues("postAutoChunkUpload").Inc()
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start := time.Now()
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defer func() {
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stats.FilerRequestHistogram.WithLabelValues("postAutoChunkUpload").Observe(time.Since(start).Seconds())
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}()
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uploadResult, err, _ := operation.Upload(urlLocation, fileName, fs.option.Cipher, limitedReader, false, contentType, pairMap, auth)
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return uploadResult, err
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}
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func (fs *FilerServer) saveAsChunk(replication string, collection string, dataCenter string, ttlString string, fsync bool) filer2.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(replication, collection, dataCenter, ttlString, fsync)
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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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uploadResult, uploadErr, _ := operation.Upload(urlLocation, name, fs.option.Cipher, reader, false, "", nil, auth)
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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), collection, replication, nil
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}
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}
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