mirror of
https://github.com/chrislusf/seaweedfs
synced 2024-08-31 06:00:38 +02:00
231 lines
5.7 KiB
Go
231 lines
5.7 KiB
Go
package operation
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import (
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"bytes"
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"io"
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"mime"
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"net/url"
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"os"
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"path"
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"strconv"
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"strings"
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"github.com/chrislusf/seaweedfs/weed/glog"
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"github.com/chrislusf/seaweedfs/weed/security"
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)
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type FilePart struct {
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Reader io.Reader
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FileName string
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FileSize int64
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IsGzipped bool
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MimeType string
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ModTime int64 //in seconds
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Replication string
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Collection string
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DataCenter string
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Ttl string
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Server string //this comes from assign result
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Fid string //this comes from assign result, but customizable
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}
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type SubmitResult struct {
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FileName string `json:"fileName,omitempty"`
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FileUrl string `json:"fileUrl,omitempty"`
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Fid string `json:"fid,omitempty"`
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Size uint32 `json:"size,omitempty"`
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Error string `json:"error,omitempty"`
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}
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func SubmitFiles(master string, files []FilePart,
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replication string, collection string, dataCenter string, ttl string, maxMB int,
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secret security.Secret,
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) ([]SubmitResult, error) {
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results := make([]SubmitResult, len(files))
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for index, file := range files {
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results[index].FileName = file.FileName
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}
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ar := &VolumeAssignRequest{
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Count: uint64(len(files)),
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Replication: replication,
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Collection: collection,
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DataCenter: dataCenter,
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Ttl: ttl,
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}
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ret, err := Assign(master, ar)
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if err != nil {
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for index, _ := range files {
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results[index].Error = err.Error()
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}
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return results, err
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}
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for index, file := range files {
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file.Fid = ret.Fid
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if index > 0 {
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file.Fid = file.Fid + "_" + strconv.Itoa(index)
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}
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file.Server = ret.Url
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file.Replication = replication
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file.Collection = collection
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file.DataCenter = dataCenter
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results[index].Size, err = file.Upload(maxMB, master, secret)
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if err != nil {
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results[index].Error = err.Error()
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}
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results[index].Fid = file.Fid
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results[index].FileUrl = ret.PublicUrl + "/" + file.Fid
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}
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return results, nil
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}
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func NewFileParts(fullPathFilenames []string) (ret []FilePart, err error) {
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ret = make([]FilePart, len(fullPathFilenames))
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for index, file := range fullPathFilenames {
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if ret[index], err = newFilePart(file); err != nil {
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return
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}
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}
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return
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}
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func newFilePart(fullPathFilename string) (ret FilePart, err error) {
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fh, openErr := os.Open(fullPathFilename)
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if openErr != nil {
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glog.V(0).Info("Failed to open file: ", fullPathFilename)
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return ret, openErr
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}
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ret.Reader = fh
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fi, fiErr := fh.Stat()
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if fiErr != nil {
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glog.V(0).Info("Failed to stat file:", fullPathFilename)
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return ret, fiErr
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}
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ret.ModTime = fi.ModTime().UTC().Unix()
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ret.FileSize = fi.Size()
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ext := strings.ToLower(path.Ext(fullPathFilename))
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ret.IsGzipped = ext == ".gz"
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ret.FileName = fi.Name()
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if ext != "" {
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ret.MimeType = mime.TypeByExtension(ext)
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}
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return ret, nil
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}
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func (fi FilePart) Upload(maxMB int, master string, secret security.Secret) (retSize uint32, err error) {
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jwt := security.GenJwt(secret, fi.Fid)
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fileUrl := "http://" + fi.Server + "/" + fi.Fid
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if fi.ModTime != 0 {
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fileUrl += "?ts=" + strconv.Itoa(int(fi.ModTime))
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}
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if closer, ok := fi.Reader.(io.Closer); ok {
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defer closer.Close()
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}
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baseName := path.Base(fi.FileName)
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if maxMB > 0 && fi.FileSize > int64(maxMB*1024*1024) {
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chunkSize := int64(maxMB * 1024 * 1024)
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chunks := fi.FileSize/chunkSize + 1
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cm := ChunkManifest{
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Name: baseName,
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Size: fi.FileSize,
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Mime: fi.MimeType,
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Chunks: make([]*ChunkInfo, 0, chunks),
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}
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var ret *AssignResult
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var id string
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if fi.DataCenter != "" {
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ar := &VolumeAssignRequest{
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Count: uint64(chunks),
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Replication: fi.Replication,
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Collection: fi.Collection,
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Ttl: fi.Ttl,
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}
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ret, err = Assign(master, ar)
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if err != nil {
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return
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}
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}
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for i := int64(0); i < chunks; i++ {
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if fi.DataCenter == "" {
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ar := &VolumeAssignRequest{
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Count: 1,
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Replication: fi.Replication,
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Collection: fi.Collection,
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Ttl: fi.Ttl,
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}
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ret, err = Assign(master, ar)
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if err != nil {
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// delete all uploaded chunks
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cm.DeleteChunks(master)
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return
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}
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id = ret.Fid
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} else {
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id = ret.Fid
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if i > 0 {
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id += "_" + strconv.FormatInt(i, 10)
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}
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}
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fileUrl := "http://" + ret.Url + "/" + id
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count, e := upload_one_chunk(
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baseName+"-"+strconv.FormatInt(i+1, 10),
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io.LimitReader(fi.Reader, chunkSize),
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master, fileUrl,
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jwt)
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if e != nil {
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// delete all uploaded chunks
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cm.DeleteChunks(master)
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return 0, e
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}
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cm.Chunks = append(cm.Chunks,
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&ChunkInfo{
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Offset: i * chunkSize,
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Size: int64(count),
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Fid: id,
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},
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)
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retSize += count
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}
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err = upload_chunked_file_manifest(fileUrl, &cm, jwt)
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if err != nil {
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// delete all uploaded chunks
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cm.DeleteChunks(master)
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}
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} else {
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ret, e := Upload(fileUrl, baseName, fi.Reader, fi.IsGzipped, fi.MimeType, nil, jwt)
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if e != nil {
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return 0, e
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}
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return ret.Size, e
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}
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return
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}
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func upload_one_chunk(filename string, reader io.Reader, master,
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fileUrl string, jwt security.EncodedJwt,
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) (size uint32, e error) {
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glog.V(4).Info("Uploading part ", filename, " to ", fileUrl, "...")
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uploadResult, uploadError := Upload(fileUrl, filename, reader, false,
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"application/octet-stream", nil, jwt)
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if uploadError != nil {
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return 0, uploadError
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}
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return uploadResult.Size, nil
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}
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func upload_chunked_file_manifest(fileUrl string, manifest *ChunkManifest, jwt security.EncodedJwt) error {
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buf, e := manifest.Marshal()
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if e != nil {
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return e
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}
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bufReader := bytes.NewReader(buf)
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glog.V(4).Info("Uploading chunks manifest ", manifest.Name, " to ", fileUrl, "...")
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u, _ := url.Parse(fileUrl)
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q := u.Query()
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q.Set("cm", "true")
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u.RawQuery = q.Encode()
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_, e = Upload(u.String(), manifest.Name, bufReader, false, "application/json", nil, jwt)
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return e
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}
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