152 lines
4 KiB
Go
152 lines
4 KiB
Go
package main
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import (
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"context"
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"io"
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"net/http"
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"path"
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"strconv"
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"strings"
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"time"
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"github.com/labstack/echo/v4"
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"github.com/nspcc-dev/neofs-api/container"
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"github.com/nspcc-dev/neofs-api/object"
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"github.com/nspcc-dev/neofs-api/refs"
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"github.com/nspcc-dev/neofs-api/service"
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"github.com/pkg/errors"
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"go.uber.org/zap"
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"google.golang.org/grpc"
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)
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func (r *router) receiveFile(c echo.Context) error {
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var (
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err error
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cid refs.CID
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oid refs.ObjectID
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obj *object.Object
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start = time.Now()
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con *grpc.ClientConn
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ctx = c.Request().Context()
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cli object.Service_GetClient
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download = c.QueryParam("download") != ""
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)
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log := r.log.With(
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// zap.String("node", con.Target()),
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zap.String("cid", c.Param("cid")),
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zap.String("oid", c.Param("oid")))
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if err = cid.Parse(c.Param("cid")); err != nil {
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log.Error("wrong container id", zap.Error(err))
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return echo.NewHTTPError(
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http.StatusBadRequest,
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errors.Wrap(err, "wrong container id").Error(),
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)
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} else if err = oid.Parse(c.Param("oid")); err != nil {
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log.Error("wrong object id", zap.Error(err))
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return echo.NewHTTPError(
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http.StatusBadRequest,
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errors.Wrap(err, "wrong object id").Error(),
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)
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}
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{ // try to connect or throw http error:
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ctx, cancel := context.WithTimeout(ctx, r.timeout)
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defer cancel()
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if con, err = r.pool.getConnection(ctx); err != nil {
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log.Error("getConnection timeout", zap.Error(err))
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return echo.NewHTTPError(http.StatusBadRequest, err.Error())
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}
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}
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ctx, cancel := context.WithTimeout(ctx, r.timeout)
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defer cancel()
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log = log.With(zap.String("node", con.Target()))
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defer func() {
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if err != nil {
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return
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}
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log.Info("object sent to client", zap.Stringer("elapsed", time.Since(start)))
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}()
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req := &object.GetRequest{Address: refs.Address{ObjectID: oid, CID: cid}}
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req.SetTTL(service.SingleForwardingTTL)
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if err = service.SignRequestHeader(r.key, req); err != nil {
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log.Error("could not sign request", zap.Error(err))
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return echo.NewHTTPError(
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http.StatusBadRequest,
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errors.Wrap(err, "could not sign request").Error())
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}
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if cli, err = object.NewServiceClient(con).Get(ctx, req); err != nil {
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log.Error("could not prepare connection", zap.Error(err))
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return echo.NewHTTPError(
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http.StatusBadRequest,
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errors.Wrap(err, "could not prepare connection").Error(),
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)
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} else if obj, err = receiveObject(cli); err != nil {
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log.Error("could not receive object",
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zap.Stringer("elapsed", time.Since(start)),
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zap.Error(err))
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switch {
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case strings.Contains(err.Error(), object.ErrNotFound.Error()),
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strings.Contains(err.Error(), container.ErrNotFound.Error()):
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return echo.NewHTTPError(http.StatusNotFound, err.Error())
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default:
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return echo.NewHTTPError(
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http.StatusBadRequest,
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errors.Wrap(err, "could not receive object").Error(),
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)
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}
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}
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log.Info("object fetched successfully")
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c.Response().Header().Set("Content-Length", strconv.FormatUint(obj.SystemHeader.PayloadLength, 10))
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c.Response().Header().Set("x-object-id", obj.SystemHeader.ID.String())
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c.Response().Header().Set("x-owner-id", obj.SystemHeader.OwnerID.String())
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c.Response().Header().Set("x-container-id", obj.SystemHeader.CID.String())
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for i := range obj.Headers {
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if hdr := obj.Headers[i].GetUserHeader(); hdr != nil {
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c.Response().Header().Set("x-"+hdr.Key, hdr.Value)
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if hdr.Key == object.FilenameHeader && download {
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// NOTE: we use path.Base because hdr.Value can be something like `/path/to/filename.ext`
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c.Response().Header().Set("Content-Disposition", "attachment; filename="+path.Base(hdr.Value))
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}
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}
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}
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return c.Blob(http.StatusOK,
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http.DetectContentType(obj.Payload),
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obj.Payload)
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}
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func receiveObject(cli object.Service_GetClient) (*object.Object, error) {
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var obj *object.Object
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for {
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resp, err := cli.Recv()
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if err != nil {
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if err == io.EOF {
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break
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}
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return nil, err
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} else if obj == nil {
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obj = resp.GetObject()
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}
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obj.Payload = append(obj.Payload, resp.GetChunk()...)
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}
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return obj, nil
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}
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