/
upload_content.go
310 lines (284 loc) · 8.9 KB
/
upload_content.go
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package operation
import (
"bytes"
"encoding/json"
"fmt"
"github.com/chrislusf/seaweedfs/weed/glog"
"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
"github.com/chrislusf/seaweedfs/weed/security"
"github.com/chrislusf/seaweedfs/weed/util"
"io"
"mime"
"mime/multipart"
"net"
"net/http"
"net/textproto"
"path/filepath"
"strings"
"time"
)
type UploadOption struct {
UploadUrl string
Filename string
Cipher bool
IsInputCompressed bool
MimeType string
PairMap map[string]string
Jwt security.EncodedJwt
}
type UploadResult struct {
Name string `json:"name,omitempty"`
Size uint32 `json:"size,omitempty"`
Error string `json:"error,omitempty"`
ETag string `json:"eTag,omitempty"`
CipherKey []byte `json:"cipherKey,omitempty"`
Mime string `json:"mime,omitempty"`
Gzip uint32 `json:"gzip,omitempty"`
ContentMd5 string `json:"contentMd5,omitempty"`
RetryCount int `json:"-"`
}
func (uploadResult *UploadResult) ToPbFileChunk(fileId string, offset int64) *filer_pb.FileChunk {
fid, _ := filer_pb.ToFileIdObject(fileId)
return &filer_pb.FileChunk{
FileId: fileId,
Offset: offset,
Size: uint64(uploadResult.Size),
Mtime: time.Now().UnixNano(),
ETag: uploadResult.ContentMd5,
CipherKey: uploadResult.CipherKey,
IsCompressed: uploadResult.Gzip > 0,
Fid: fid,
}
}
// HTTPClient interface for testing
type HTTPClient interface {
Do(req *http.Request) (*http.Response, error)
}
var (
HttpClient HTTPClient
)
func init() {
HttpClient = &http.Client{Transport: &http.Transport{
DialContext: (&net.Dialer{
Timeout: 10 * time.Second,
KeepAlive: 10 * time.Second,
}).DialContext,
MaxIdleConns: 1024,
MaxIdleConnsPerHost: 1024,
}}
}
var fileNameEscaper = strings.NewReplacer(`\`, `\\`, `"`, `\"`, "\n", "")
// Upload sends a POST request to a volume server to upload the content with adjustable compression level
func UploadData(data []byte, option *UploadOption) (uploadResult *UploadResult, err error) {
uploadResult, err = retriedUploadData(data, option)
return
}
// Upload sends a POST request to a volume server to upload the content with fast compression
func Upload(reader io.Reader, option *UploadOption) (uploadResult *UploadResult, err error, data []byte) {
uploadResult, err, data = doUpload(reader, option)
return
}
func doUpload(reader io.Reader, option *UploadOption) (uploadResult *UploadResult, err error, data []byte) {
bytesReader, ok := reader.(*util.BytesReader)
if ok {
data = bytesReader.Bytes
} else {
data, err = io.ReadAll(reader)
if err != nil {
err = fmt.Errorf("read input: %v", err)
return
}
}
uploadResult, uploadErr := retriedUploadData(data, option)
return uploadResult, uploadErr, data
}
func retriedUploadData(data []byte, option *UploadOption) (uploadResult *UploadResult, err error) {
for i := 0; i < 3; i++ {
uploadResult, err = doUploadData(data, option)
if err == nil {
uploadResult.RetryCount = i
return
} else {
glog.Warningf("uploading to %s: %v", option.UploadUrl, err)
}
time.Sleep(time.Millisecond * time.Duration(237*(i+1)))
}
return
}
func doUploadData(data []byte, option *UploadOption) (uploadResult *UploadResult, err error) {
contentIsGzipped := option.IsInputCompressed
shouldGzipNow := false
if !option.IsInputCompressed {
if option.MimeType == "" {
option.MimeType = http.DetectContentType(data)
// println("detect1 mimetype to", MimeType)
if option.MimeType == "application/octet-stream" {
option.MimeType = ""
}
}
if shouldBeCompressed, iAmSure := util.IsCompressableFileType(filepath.Base(option.Filename), option.MimeType); iAmSure && shouldBeCompressed {
shouldGzipNow = true
} else if !iAmSure && option.MimeType == "" && len(data) > 16*1024 {
var compressed []byte
compressed, err = util.GzipData(data[0:128])
shouldGzipNow = len(compressed)*10 < 128*9 // can not compress to less than 90%
}
}
var clearDataLen int
// gzip if possible
// this could be double copying
clearDataLen = len(data)
clearData := data
if shouldGzipNow && !option.Cipher {
compressed, compressErr := util.GzipData(data)
// fmt.Printf("data is compressed from %d ==> %d\n", len(data), len(compressed))
if compressErr == nil {
data = compressed
contentIsGzipped = true
}
} else if option.IsInputCompressed {
// just to get the clear data length
clearData, err = util.DecompressData(data)
if err == nil {
clearDataLen = len(clearData)
}
}
if option.Cipher {
// encrypt(gzip(data))
// encrypt
cipherKey := util.GenCipherKey()
encryptedData, encryptionErr := util.Encrypt(clearData, cipherKey)
if encryptionErr != nil {
err = fmt.Errorf("encrypt input: %v", encryptionErr)
return
}
// upload data
uploadResult, err = upload_content(func(w io.Writer) (err error) {
_, err = w.Write(encryptedData)
return
}, len(encryptedData), &UploadOption{
UploadUrl: option.UploadUrl,
Filename: "",
Cipher: false,
IsInputCompressed: false,
MimeType: "",
PairMap: nil,
Jwt: option.Jwt,
})
if uploadResult == nil {
return
}
uploadResult.Name = option.Filename
uploadResult.Mime = option.MimeType
uploadResult.CipherKey = cipherKey
uploadResult.Size = uint32(clearDataLen)
} else {
// upload data
uploadResult, err = upload_content(func(w io.Writer) (err error) {
_, err = w.Write(data)
return
}, len(data), &UploadOption{
UploadUrl: option.UploadUrl,
Filename: option.Filename,
Cipher: false,
IsInputCompressed: contentIsGzipped,
MimeType: option.MimeType,
PairMap: option.PairMap,
Jwt: option.Jwt,
})
if uploadResult == nil {
return
}
uploadResult.Size = uint32(clearDataLen)
if contentIsGzipped {
uploadResult.Gzip = 1
}
}
return uploadResult, err
}
func upload_content(fillBufferFunction func(w io.Writer) error, originalDataSize int, option *UploadOption) (*UploadResult, error) {
buf := GetBuffer()
defer PutBuffer(buf)
body_writer := multipart.NewWriter(buf)
h := make(textproto.MIMEHeader)
filename := fileNameEscaper.Replace(option.Filename)
h.Set("Content-Disposition", fmt.Sprintf(`form-data; name="file"; filename="%s"`, filename))
h.Set("Idempotency-Key", option.UploadUrl)
if option.MimeType == "" {
option.MimeType = mime.TypeByExtension(strings.ToLower(filepath.Ext(option.Filename)))
}
if option.MimeType != "" {
h.Set("Content-Type", option.MimeType)
}
if option.IsInputCompressed {
h.Set("Content-Encoding", "gzip")
}
file_writer, cp_err := body_writer.CreatePart(h)
if cp_err != nil {
glog.V(0).Infoln("error creating form file", cp_err.Error())
return nil, cp_err
}
if err := fillBufferFunction(file_writer); err != nil {
glog.V(0).Infoln("error copying data", err)
return nil, err
}
content_type := body_writer.FormDataContentType()
if err := body_writer.Close(); err != nil {
glog.V(0).Infoln("error closing body", err)
return nil, err
}
req, postErr := http.NewRequest("POST", option.UploadUrl, bytes.NewReader(buf.Bytes()))
if postErr != nil {
glog.V(1).Infof("create upload request %s: %v", option.UploadUrl, postErr)
return nil, fmt.Errorf("create upload request %s: %v", option.UploadUrl, postErr)
}
req.Header.Set("Content-Type", content_type)
for k, v := range option.PairMap {
req.Header.Set(k, v)
}
if option.Jwt != "" {
req.Header.Set("Authorization", "BEARER "+string(option.Jwt))
}
// print("+")
resp, post_err := HttpClient.Do(req)
if post_err != nil {
if strings.Contains(post_err.Error(), "connection reset by peer") ||
strings.Contains(post_err.Error(), "use of closed network connection") {
glog.V(1).Infof("repeat error upload request %s: %v", option.UploadUrl, postErr)
resp, post_err = HttpClient.Do(req)
}
}
if post_err != nil {
return nil, fmt.Errorf("upload %s %d bytes to %v: %v", option.Filename, originalDataSize, option.UploadUrl, post_err)
}
// print("-")
defer util.CloseResponse(resp)
var ret UploadResult
etag := getEtag(resp)
if resp.StatusCode == http.StatusNoContent {
ret.ETag = etag
return &ret, nil
}
resp_body, ra_err := io.ReadAll(resp.Body)
if ra_err != nil {
return nil, fmt.Errorf("read response body %v: %v", option.UploadUrl, ra_err)
}
unmarshal_err := json.Unmarshal(resp_body, &ret)
if unmarshal_err != nil {
glog.Errorf("unmarshal %s: %v", option.UploadUrl, string(resp_body))
return nil, fmt.Errorf("unmarshal %v: %v", option.UploadUrl, unmarshal_err)
}
if ret.Error != "" {
return nil, fmt.Errorf("unmarshalled error %v: %v", option.UploadUrl, ret.Error)
}
ret.ETag = etag
ret.ContentMd5 = resp.Header.Get("Content-MD5")
return &ret, nil
}
func getEtag(r *http.Response) (etag string) {
etag = r.Header.Get("ETag")
if strings.HasPrefix(etag, "\"") && strings.HasSuffix(etag, "\"") {
etag = etag[1 : len(etag)-1]
}
return
}