89 lines
2.6 KiB
Go
89 lines
2.6 KiB
Go
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package downloader
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import (
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"net/http"
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"strconv"
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"time"
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"github.com/nspcc-dev/neofs-api-go/pkg/client"
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"github.com/nspcc-dev/neofs-api-go/pkg/object"
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"github.com/nspcc-dev/neofs-http-gw/tokens"
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"github.com/valyala/fasthttp"
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"go.uber.org/zap"
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)
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const sizeToDetectType = 512
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func (r request) headObject(clnt client.Object, objectAddress *object.Address) {
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var start = time.Now()
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if err := tokens.StoreBearerToken(r.RequestCtx); err != nil {
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r.log.Error("could not fetch and store bearer token", zap.Error(err))
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r.Error("could not fetch and store bearer token", fasthttp.StatusBadRequest)
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return
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}
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options := new(client.ObjectHeaderParams).WithAddress(objectAddress)
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bearerOpt := bearerOpts(r.RequestCtx)
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obj, err := clnt.GetObjectHeader(r.RequestCtx, options, bearerOpt)
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if err != nil {
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r.handleNeoFSErr(err, start)
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return
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}
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r.Response.Header.Set("Content-Length", strconv.FormatUint(obj.PayloadSize(), 10))
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var contentType string
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for _, attr := range obj.Attributes() {
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key := attr.Key()
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val := attr.Value()
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if !isValidToken(key) || !isValidValue(val) {
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continue
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}
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r.Response.Header.Set("X-Attribute-"+key, val)
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switch key {
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case object.AttributeTimestamp:
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value, err := strconv.ParseInt(val, 10, 64)
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if err != nil {
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r.log.Info("couldn't parse creation date",
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zap.String("key", key),
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zap.String("val", val),
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zap.Error(err))
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continue
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}
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r.Response.Header.Set("Last-Modified", time.Unix(value, 0).UTC().Format(http.TimeFormat))
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case object.AttributeContentType:
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contentType = val
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}
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}
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r.Response.Header.Set("x-object-id", obj.ID().String())
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r.Response.Header.Set("x-owner-id", obj.OwnerID().String())
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r.Response.Header.Set("x-container-id", obj.ContainerID().String())
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if len(contentType) == 0 {
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objRange := object.NewRange()
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objRange.SetOffset(0)
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if sizeToDetectType < obj.PayloadSize() {
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objRange.SetLength(sizeToDetectType)
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} else {
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objRange.SetLength(obj.PayloadSize())
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}
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ops := new(client.RangeDataParams).WithAddress(objectAddress).WithRange(objRange)
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data, err := clnt.ObjectPayloadRangeData(r.RequestCtx, ops, bearerOpt)
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if err != nil {
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r.handleNeoFSErr(err, start)
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return
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}
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contentType = http.DetectContentType(data)
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}
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r.SetContentType(contentType)
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}
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// HeadByAddress handles head requests using simple cid/oid format.
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func (d *Downloader) HeadByAddress(c *fasthttp.RequestCtx) {
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d.byAddress(c, request.headObject)
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}
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// HeadByAttribute handles attribute-based head requests.
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func (d *Downloader) HeadByAttribute(c *fasthttp.RequestCtx) {
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d.byAttribute(c, request.headObject)
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}
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