package s5 import ( "bytes" "errors" "git.lumeweb.com/LumeWeb/libs5-go/encoding" s5interface "git.lumeweb.com/LumeWeb/libs5-go/interfaces" "git.lumeweb.com/LumeWeb/libs5-go/types" "git.lumeweb.com/LumeWeb/portal/interfaces" "go.sia.tech/jape" "go.uber.org/zap" "io" "mime/multipart" "net/http" "strings" ) var ( _ s5interface.HTTPHandler = (*HttpHandlerImpl)(nil) ) const ( errMultiformParse = "Error parsing multipart form" errRetrievingFile = "Error retrieving the file" errReadFile = "Error reading the file" errClosingStream = "Error closing the stream" errUploadingFile = "Error uploading the file" ) var ( errUploadingFileErr = errors.New(errUploadingFile) ) type HttpHandlerImpl struct { portal interfaces.Portal } func NewHttpHandler(portal interfaces.Portal) *HttpHandlerImpl { return &HttpHandlerImpl{portal: portal} } func (h *HttpHandlerImpl) SmallFileUpload(jc *jape.Context) { var rs io.ReadSeeker var bufferSize int64 r := jc.Request contentType := r.Header.Get("Content-Type") if strings.HasPrefix(contentType, "multipart/form-data") { // Parse the multipart form err := r.ParseMultipartForm(h.portal.Config().GetInt64("core.post-upload-limit")) if jc.Check(errMultiformParse, err) != nil { h.portal.Logger().Error(errMultiformParse, zap.Error(err)) return } // Retrieve the file from the form data file, _, err := r.FormFile("file") if jc.Check(errRetrievingFile, err) != nil { h.portal.Logger().Error(errRetrievingFile, zap.Error(err)) return } defer func(file multipart.File) { err := file.Close() if err != nil { h.portal.Logger().Error(errClosingStream, zap.Error(err)) } }(file) rs = file } else { data, err := io.ReadAll(r.Body) if jc.Check(errReadFile, err) != nil { h.portal.Logger().Error(errReadFile, zap.Error(err)) return } buffer := bytes.NewReader(data) bufferSize = int64(buffer.Len()) rs = buffer defer func(Body io.ReadCloser) { err := Body.Close() if err != nil { h.portal.Logger().Error(errClosingStream, zap.Error(err)) } }(r.Body) } hash, err := h.portal.Storage().GetHash(rs) if err != nil { _ = jc.Error(errUploadingFileErr, http.StatusInternalServerError) h.portal.Logger().Error(errUploadingFile, zap.Error(err)) return } if exists, upload := h.portal.Storage().FileExists(hash); exists { cid, err := encoding.CIDFromHash(hash, upload.Size, types.CIDTypeRaw) if err != nil { _ = jc.Error(errUploadingFileErr, http.StatusInternalServerError) h.portal.Logger().Error(errUploadingFile, zap.Error(err)) return } cidStr, err := cid.ToString() if err != nil { _ = jc.Error(errUploadingFileErr, http.StatusInternalServerError) h.portal.Logger().Error(errUploadingFile, zap.Error(err)) return } jc.Encode(map[string]string{"hash": cidStr}) return } hash, err = h.portal.Storage().PutFile(rs, "s5", false) if err != nil { _ = jc.Error(errUploadingFileErr, http.StatusInternalServerError) h.portal.Logger().Error(errUploadingFile, zap.Error(err)) return } cid, err := encoding.CIDFromHash(hash, uint64(bufferSize), types.CIDTypeRaw) if err != nil { _ = jc.Error(errUploadingFileErr, http.StatusInternalServerError) h.portal.Logger().Error(errUploadingFile, zap.Error(err)) return } cidStr, err := cid.ToString() if err != nil { _ = jc.Error(errUploadingFileErr, http.StatusInternalServerError) h.portal.Logger().Error(errUploadingFile, zap.Error(err)) return } jc.Encode(map[string]string{"hash": cidStr}) }