[#170] Support .tar/.tgz unpacking during upload
During upload if X-Explode-Archive is set, gate tries to read archive and create an object for each file. Each object acquires a FilePath attribute which is calculated relative to the archive root. Archive could have compression via Gzip if "Content-Encoding: gzip" header is specified Signed-off-by: Nikita Zinkevich <n.zinkevich@yadro.com>
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7901d00924
commit
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GPG key ID:
748EA1D0B2E6420A
5 changed files with 185 additions and 92 deletions
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@ -1,13 +1,19 @@
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package handler
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import (
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"archive/tar"
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"bytes"
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"compress/gzip"
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"context"
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"encoding/json"
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"errors"
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"io"
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"net/http"
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"path/filepath"
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"strconv"
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"time"
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"git.frostfs.info/TrueCloudLab/frostfs-http-gw/internal/data"
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"git.frostfs.info/TrueCloudLab/frostfs-http-gw/internal/logs"
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"git.frostfs.info/TrueCloudLab/frostfs-http-gw/tokens"
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"git.frostfs.info/TrueCloudLab/frostfs-http-gw/utils"
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@ -19,8 +25,9 @@ import (
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)
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const (
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jsonHeader = "application/json; charset=UTF-8"
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drainBufSize = 4096
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jsonHeader = "application/json; charset=UTF-8"
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drainBufSize = 4096
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explodeArchiveHeader = "X-Explode-Archive"
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)
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type putResponse struct {
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@ -43,11 +50,7 @@ func (pr *putResponse) encode(w io.Writer) error {
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// Upload handles multipart upload request.
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func (h *Handler) Upload(c *fasthttp.RequestCtx) {
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var (
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file MultipartFile
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idObj oid.ID
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addr oid.Address
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)
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var file MultipartFile
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scid, _ := c.UserValue("cid").(string)
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bodyStream := c.RequestBodyStream()
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@ -63,20 +66,6 @@ func (h *Handler) Upload(c *fasthttp.RequestCtx) {
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return
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}
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defer func() {
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// If the temporary reader can be closed - let's close it.
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if file == nil {
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return
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}
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err := file.Close()
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log.Debug(
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logs.CloseTemporaryMultipartFormFile,
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zap.Stringer("address", addr),
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zap.String("filename", file.FileName()),
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zap.Error(err),
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)
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}()
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boundary := string(c.Request.Header.MultipartFormBoundary())
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if file, err = fetchMultipartFile(log, bodyStream, boundary); err != nil {
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log.Error(logs.CouldNotReceiveMultipartForm, zap.Error(err))
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@ -86,53 +75,69 @@ func (h *Handler) Upload(c *fasthttp.RequestCtx) {
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filtered, err := filterHeaders(log, &c.Request.Header)
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if err != nil {
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log.Error(logs.CouldNotProcessHeaders, zap.Error(err))
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log.Error(logs.FailedToFilterHeaders, zap.Error(err))
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ResponseError(c, err.Error(), fasthttp.StatusBadRequest)
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return
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}
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now := time.Now()
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if rawHeader := c.Request.Header.Peek(fasthttp.HeaderDate); rawHeader != nil {
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if parsed, err := time.Parse(http.TimeFormat, string(rawHeader)); err != nil {
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log.Warn(logs.CouldNotParseClientTime, zap.String("Date header", string(rawHeader)), zap.Error(err))
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} else {
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now = parsed
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}
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if c.Request.Header.Peek(explodeArchiveHeader) != nil {
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h.explodeArchive(request{c, log}, bktInfo, file, filtered)
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} else {
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h.uploadSingleObject(request{c, log}, bktInfo, file, filtered)
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}
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if err = utils.PrepareExpirationHeader(c, h.frostfs, filtered, now); err != nil {
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log.Error(logs.CouldNotPrepareExpirationHeader, zap.Error(err))
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ResponseError(c, "could not prepare expiration header: "+err.Error(), fasthttp.StatusBadRequest)
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// Multipart is multipart and thus can contain more than one part which
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// we ignore at the moment. Also, when dealing with chunked encoding
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// the last zero-length chunk might be left unread (because multipart
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// reader only cares about its boundary and doesn't look further) and
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// it will be (erroneously) interpreted as the start of the next
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// pipelined header. Thus, we need to drain the body buffer.
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for {
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_, err = bodyStream.Read(drainBuf)
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if err == io.EOF || errors.Is(err, io.ErrUnexpectedEOF) {
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break
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}
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}
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}
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func (h *Handler) uploadSingleObject(req request, bkt *data.BucketInfo, file MultipartFile, filtered map[string]string) {
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c, log := req.RequestCtx, req.log
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setIfNotExist(filtered, object.AttributeFileName, file.FileName())
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attributes, err := h.extractAttributes(c, log, filtered)
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if err != nil {
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log.Error(logs.FailedToGetAttributes, zap.Error(err))
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ResponseError(c, "could not extract attributes: "+err.Error(), fasthttp.StatusBadRequest)
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return
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}
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attributes := make([]object.Attribute, 0, len(filtered))
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// prepares attributes from filtered headers
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for key, val := range filtered {
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attribute := object.NewAttribute()
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attribute.SetKey(key)
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attribute.SetValue(val)
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attributes = append(attributes, *attribute)
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idObj, err := h.uploadObject(c, bkt, attributes, file)
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if err != nil {
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h.handlePutFrostFSErr(c, err, log)
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return
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}
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// sets FileName attribute if it wasn't set from header
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if _, ok := filtered[object.AttributeFileName]; !ok {
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filename := object.NewAttribute()
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filename.SetKey(object.AttributeFileName)
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filename.SetValue(file.FileName())
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attributes = append(attributes, *filename)
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}
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// sets Timestamp attribute if it wasn't set from header and enabled by settings
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if _, ok := filtered[object.AttributeTimestamp]; !ok && h.config.DefaultTimestamp() {
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timestamp := object.NewAttribute()
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timestamp.SetKey(object.AttributeTimestamp)
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timestamp.SetValue(strconv.FormatInt(time.Now().Unix(), 10))
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attributes = append(attributes, *timestamp)
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log.Debug(logs.ObjectUploaded,
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zap.String("oid", idObj.EncodeToString()),
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zap.String("FileName", file.FileName()),
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)
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addr := newAddress(bkt.CID, idObj)
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c.Response.Header.SetContentType(jsonHeader)
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// Try to return the response, otherwise, if something went wrong, throw an error.
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if err = newPutResponse(addr).encode(c); err != nil {
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log.Error(logs.CouldNotEncodeResponse, zap.Error(err))
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ResponseError(c, "could not encode response", fasthttp.StatusBadRequest)
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return
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}
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}
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func (h *Handler) uploadObject(c *fasthttp.RequestCtx, bkt *data.BucketInfo, attrs []object.Attribute, file io.Reader) (oid.ID, error) {
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ctx := utils.GetContextFromRequest(c)
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obj := object.New()
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obj.SetContainerID(bktInfo.CID)
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obj.SetContainerID(bkt.CID)
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obj.SetOwnerID(*h.ownerID)
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obj.SetAttributes(attributes...)
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obj.SetAttributes(attrs...)
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prm := PrmObjectCreate{
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PrmAuth: PrmAuth{
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@ -141,40 +146,120 @@ func (h *Handler) Upload(c *fasthttp.RequestCtx) {
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Object: obj,
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Payload: file,
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ClientCut: h.config.ClientCut(),
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WithoutHomomorphicHash: bktInfo.HomomorphicHashDisabled,
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WithoutHomomorphicHash: bkt.HomomorphicHashDisabled,
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BufferMaxSize: h.config.BufferMaxSizeForPut(),
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}
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if idObj, err = h.frostfs.CreateObject(ctx, prm); err != nil {
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h.handlePutFrostFSErr(c, err, log)
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return
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idObj, err := h.frostfs.CreateObject(ctx, prm)
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if err != nil {
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return oid.ID{}, err
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}
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addr.SetObject(idObj)
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addr.SetContainer(bktInfo.CID)
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return idObj, nil
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}
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// Try to return the response, otherwise, if something went wrong, throw an error.
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if err = newPutResponse(addr).encode(c); err != nil {
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log.Error(logs.CouldNotEncodeResponse, zap.Error(err))
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ResponseError(c, "could not encode response", fasthttp.StatusBadRequest)
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return
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}
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// Multipart is multipart and thus can contain more than one part which
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// we ignore at the moment. Also, when dealing with chunked encoding
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// the last zero-length chunk might be left unread (because multipart
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// reader only cares about its boundary and doesn't look further) and
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// it will be (erroneously) interpreted as the start of the next
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// pipelined header. Thus we need to drain the body buffer.
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for {
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_, err = bodyStream.Read(drainBuf)
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if err == io.EOF || err == io.ErrUnexpectedEOF {
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break
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func (h *Handler) extractAttributes(c *fasthttp.RequestCtx, log *zap.Logger, filtered map[string]string) ([]object.Attribute, error) {
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now := time.Now()
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if rawHeader := c.Request.Header.Peek(fasthttp.HeaderDate); rawHeader != nil {
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if parsed, err := time.Parse(http.TimeFormat, string(rawHeader)); err != nil {
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log.Warn(logs.CouldNotParseClientTime, zap.String("Date header", string(rawHeader)), zap.Error(err))
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} else {
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now = parsed
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}
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}
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// Report status code and content type.
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c.Response.SetStatusCode(fasthttp.StatusOK)
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c.Response.Header.SetContentType(jsonHeader)
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if err := utils.PrepareExpirationHeader(c, h.frostfs, filtered, now); err != nil {
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log.Error(logs.CouldNotPrepareExpirationHeader, zap.Error(err))
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return nil, err
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}
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attributes := make([]object.Attribute, 0, len(filtered))
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// prepares attributes from filtered headers
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for key, val := range filtered {
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attribute := newAttribute(key, val)
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attributes = append(attributes, attribute)
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}
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// sets Timestamp attribute if it wasn't set from header and enabled by settings
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if _, ok := filtered[object.AttributeTimestamp]; !ok && h.config.DefaultTimestamp() {
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timestamp := newAttribute(object.AttributeTimestamp, strconv.FormatInt(time.Now().Unix(), 10))
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attributes = append(attributes, timestamp)
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}
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return attributes, nil
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}
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func newAttribute(key string, val string) object.Attribute {
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attr := object.NewAttribute()
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attr.SetKey(key)
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attr.SetValue(val)
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return *attr
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}
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// explodeArchive read files from archive and creates objects for each of them.
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// Sets FilePath attribute with name from tar.Header.
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func (h *Handler) explodeArchive(req request, bkt *data.BucketInfo, file io.ReadCloser, filtered map[string]string) {
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c, log := req.RequestCtx, req.log
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// remove user attributes which vary for each file in archive
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// to guarantee that they won't appear twice
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delete(filtered, object.AttributeFileName)
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delete(filtered, object.AttributeFilePath)
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commonAttributes, err := h.extractAttributes(c, log, filtered)
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if err != nil {
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log.Error(logs.FailedToGetAttributes, zap.Error(err))
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ResponseError(c, "could not extract attributes: "+err.Error(), fasthttp.StatusBadRequest)
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return
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}
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attributes := commonAttributes
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reader := file
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if bytes.EqualFold(c.Request.Header.Peek(fasthttp.HeaderContentEncoding), []byte("gzip")) {
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log.Debug(logs.GzipReaderSelected)
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gzipReader, err := gzip.NewReader(file)
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if err != nil {
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log.Error(logs.FailedToCreateGzipReader, zap.Error(err))
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ResponseError(c, "could read gzip file: "+err.Error(), fasthttp.StatusBadRequest)
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return
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}
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defer func() {
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if err := gzipReader.Close(); err != nil {
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log.Warn(logs.FailedToCloseReader, zap.Error(err))
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}
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}()
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reader = gzipReader
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}
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tarReader := tar.NewReader(reader)
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for {
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obj, err := tarReader.Next()
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if errors.Is(err, io.EOF) {
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break
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} else if err != nil {
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log.Error(logs.FailedToReadFileFromTar, zap.Error(err))
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ResponseError(c, "could not get next entry: "+err.Error(), fasthttp.StatusBadRequest)
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return
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}
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if isDir(obj.Name) {
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continue
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}
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// set varying attributes
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attributes = attributes[:len(commonAttributes)]
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fileName := filepath.Base(obj.Name)
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attributes = append(attributes, newAttribute(object.AttributeFilePath, obj.Name))
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attributes = append(attributes, newAttribute(object.AttributeFileName, fileName))
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idObj, err := h.uploadObject(c, bkt, attributes, tarReader)
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if err != nil {
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h.handlePutFrostFSErr(c, err, log)
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return
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}
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log.Debug(logs.ObjectUploaded,
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zap.String("oid", idObj.EncodeToString()),
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zap.String("FileName", fileName),
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)
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}
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}
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func (h *Handler) handlePutFrostFSErr(r *fasthttp.RequestCtx, err error, log *zap.Logger) {
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