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