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fix: Send x-amz-mp-parts-count for multiparted objects (#9116)

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Some AWS SDKs latently rely on this value some times
to calculate the right number of parts during a parallel
GetObject request, this is feature used along with
content-range - we should support this as well.
This commit is contained in:
Harshavardhana 2020-03-12 12:37:27 -07:00 committed by GitHub
parent ed4bd20a7c
commit a54cdb9587
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2 changed files with 8 additions and 0 deletions
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5
cmd/api-headers.go
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@ -24,6 +24,7 @@ import (
"net/http" "net/http"
"net/url" "net/url"
"strconv" "strconv"
"strings"
"time" "time"
"github.com/minio/minio/cmd/crypto" "github.com/minio/minio/cmd/crypto"
@ -81,6 +82,10 @@ func setObjectHeaders(w http.ResponseWriter, objInfo ObjectInfo, rs *HTTPRangeSp
w.Header()[xhttp.ETag] = []string{"\"" + objInfo.ETag + "\""} w.Header()[xhttp.ETag] = []string{"\"" + objInfo.ETag + "\""}
} }
if strings.Contains(objInfo.ETag, "-") && len(objInfo.Parts) > 0 {
w.Header().Set(xhttp.AmzMpPartsCount, strconv.Itoa(len(objInfo.Parts)))
}
if objInfo.ContentType != "" { if objInfo.ContentType != "" {
w.Header().Set(xhttp.ContentType, objInfo.ContentType) w.Header().Set(xhttp.ContentType, objInfo.ContentType)
} }

3
cmd/http/headers.go
View File

@ -77,6 +77,9 @@ const (
AmzObjectLockLegalHold = "X-Amz-Object-Lock-Legal-Hold" AmzObjectLockLegalHold = "X-Amz-Object-Lock-Legal-Hold"
AmzObjectLockBypassGovernance = "X-Amz-Bypass-Governance-Retention" AmzObjectLockBypassGovernance = "X-Amz-Bypass-Governance-Retention"
// Multipart parts count
AmzMpPartsCount = "x-amz-mp-parts-count"
// Dummy putBucketACL // Dummy putBucketACL
AmzACL = "x-amz-acl" AmzACL = "x-amz-acl"