package operation import ( "bytes" "encoding/json" "fmt" "io" "io/ioutil" "mime" "mime/multipart" "net/http" "net/textproto" "path/filepath" "runtime/debug" "strings" "time" "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" ) 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"` } 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.ETag, 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{ MaxIdleConnsPerHost: 1024, }} } var fileNameEscaper = strings.NewReplacer("\\", "\\\\", "\"", "\\\"") // Upload sends a POST request to a volume server to upload the content with adjustable compression level func UploadData(uploadUrl string, filename string, cipher bool, data []byte, isInputCompressed bool, mtype string, pairMap map[string]string, jwt security.EncodedJwt) (uploadResult *UploadResult, err error) { uploadResult, err = retriedUploadData(uploadUrl, filename, cipher, data, isInputCompressed, mtype, pairMap, jwt) return } // Upload sends a POST request to a volume server to upload the content with fast compression func Upload(uploadUrl string, filename string, cipher bool, reader io.Reader, isInputCompressed bool, mtype string, pairMap map[string]string, jwt security.EncodedJwt) (uploadResult *UploadResult, err error, data []byte) { uploadResult, err, data = doUpload(uploadUrl, filename, cipher, reader, isInputCompressed, mtype, pairMap, jwt) return } func doUpload(uploadUrl string, filename string, cipher bool, reader io.Reader, isInputCompressed bool, mtype string, pairMap map[string]string, jwt security.EncodedJwt) (uploadResult *UploadResult, err error, data []byte) { bytesReader, ok := reader.(*util.BytesReader) if ok { data = bytesReader.Bytes } else { data, err = ioutil.ReadAll(reader) if err != nil { err = fmt.Errorf("read input: %v", err) return } } uploadResult, uploadErr := retriedUploadData(uploadUrl, filename, cipher, data, isInputCompressed, mtype, pairMap, jwt) return uploadResult, uploadErr, data } func retriedUploadData(uploadUrl string, filename string, cipher bool, data []byte, isInputCompressed bool, mtype string, pairMap map[string]string, jwt security.EncodedJwt) (uploadResult *UploadResult, err error) { for i := 0; i < 1; i++ { uploadResult, err = doUploadData(uploadUrl, filename, cipher, data, isInputCompressed, mtype, pairMap, jwt) if err == nil { return } else { glog.Warningf("uploading to %s: %v", uploadUrl, err) } } return } func doUploadData(uploadUrl string, filename string, cipher bool, data []byte, isInputCompressed bool, mtype string, pairMap map[string]string, jwt security.EncodedJwt) (uploadResult *UploadResult, err error) { contentIsGzipped := isInputCompressed shouldGzipNow := false if !isInputCompressed { if mtype == "" { mtype = http.DetectContentType(data) // println("detect1 mimetype to", mtype) if mtype == "application/octet-stream" { mtype = "" } } if shouldBeCompressed, iAmSure := util.IsCompressableFileType(filepath.Base(filename), mtype); iAmSure && shouldBeCompressed { shouldGzipNow = true } else if !iAmSure && mtype == "" && len(data) > 128 { 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) if shouldGzipNow { 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 isInputCompressed { // just to get the clear data length clearData, err := util.DecompressData(data) if err == nil { clearDataLen = len(clearData) } } if cipher { // encrypt(gzip(data)) // encrypt cipherKey := util.GenCipherKey() encryptedData, encryptionErr := util.Encrypt(data, cipherKey) if encryptionErr != nil { err = fmt.Errorf("encrypt input: %v", encryptionErr) return } // upload data uploadResult, err = upload_content(uploadUrl, func(w io.Writer) (err error) { _, err = w.Write(encryptedData) return }, "", false, len(encryptedData), "", nil, jwt) if uploadResult != nil { uploadResult.Name = filename uploadResult.Mime = mtype uploadResult.CipherKey = cipherKey } } else { // upload data uploadResult, err = upload_content(uploadUrl, func(w io.Writer) (err error) { _, err = w.Write(data) return }, filename, contentIsGzipped, 0, mtype, pairMap, jwt) } if uploadResult == nil { return } uploadResult.Size = uint32(clearDataLen) if contentIsGzipped { uploadResult.Gzip = 1 } return uploadResult, err } func upload_content(uploadUrl string, fillBufferFunction func(w io.Writer) error, filename string, isGzipped bool, originalDataSize int, mtype string, pairMap map[string]string, jwt security.EncodedJwt) (*UploadResult, error) { body_buf := bytes.NewBufferString("") body_writer := multipart.NewWriter(body_buf) h := make(textproto.MIMEHeader) h.Set("Content-Disposition", fmt.Sprintf(`form-data; name="file"; filename="%s"`, fileNameEscaper.Replace(filename))) if mtype == "" { mtype = mime.TypeByExtension(strings.ToLower(filepath.Ext(filename))) } if mtype != "" { h.Set("Content-Type", mtype) } if isGzipped { 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", uploadUrl, body_buf) if postErr != nil { glog.V(1).Infof("create upload request %s: %v", uploadUrl, postErr) return nil, fmt.Errorf("create upload request %s: %v", uploadUrl, postErr) } req.Header.Set("Content-Type", content_type) for k, v := range pairMap { req.Header.Set(k, v) } if jwt != "" { req.Header.Set("Authorization", "BEARER "+string(jwt)) } resp, post_err := HttpClient.Do(req) if post_err != nil { glog.Errorf("upload %s %d bytes to %v: %v", filename, originalDataSize, uploadUrl, post_err) debug.PrintStack() return nil, fmt.Errorf("upload %s %d bytes to %v: %v", filename, originalDataSize, uploadUrl, post_err) } 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 := ioutil.ReadAll(resp.Body) if ra_err != nil { return nil, fmt.Errorf("read response body %v: %v", uploadUrl, ra_err) } unmarshal_err := json.Unmarshal(resp_body, &ret) if unmarshal_err != nil { glog.Errorf("unmarshal %s: %v", uploadUrl, string(resp_body)) return nil, fmt.Errorf("unmarshal %v: %v", uploadUrl, unmarshal_err) } if ret.Error != "" { return nil, fmt.Errorf("unmarshalled error %v: %v", 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 }