[#486] Fix PUT object with negative Content-Length

Signed-off-by: Marina Biryukova <m.biryukova@yadro.com>

api/handler/multipart_upload_test.go

@@ -2,6 +2,7 @@ package handler
 
 import (
 	"crypto/md5"
+	"crypto/rand"
 	"crypto/tls"
 	"encoding/base64"
 	"encoding/hex"
@@ -621,6 +622,37 @@ func TestMultipartObjectLocation(t *testing.T) {
 	}
 }
 
+func TestUploadPartWithNegativeContentLength(t *testing.T) {
+	hc := prepareHandlerContext(t)
+
+	bktName, objName := "bucket-to-upload-part", "object-multipart"
+	createTestBucket(hc, bktName)
+	partSize := 5 * 1024 * 1024
+
+	multipartUpload := createMultipartUpload(hc, bktName, objName, map[string]string{})
+
+	partBody := make([]byte, partSize)
+	_, err := rand.Read(partBody)
+	require.NoError(hc.t, err)
+
+	query := make(url.Values)
+	query.Set(uploadIDQuery, multipartUpload.UploadID)
+	query.Set(partNumberQuery, "1")
+
+	w, r := prepareTestRequestWithQuery(hc, bktName, objName, query, partBody)
+	r.ContentLength = -1
+	hc.Handler().UploadPartHandler(w, r)
+	assertStatus(hc.t, w, http.StatusOK)
+
+	completeMultipartUpload(hc, bktName, objName, multipartUpload.UploadID, []string{w.Header().Get(api.ETag)})
+	res, _ := getObject(hc, bktName, objName)
+	equalDataSlices(t, partBody, res)
+
+	resp := getObjectAttributes(hc, bktName, objName, objectParts)
+	require.Len(t, resp.ObjectParts.Parts, 1)
+	require.Equal(t, partSize, resp.ObjectParts.Parts[0].Size)
+}
+
 func uploadPartCopy(hc *handlerContext, bktName, objName, uploadID string, num int, srcObj string, start, end int) *UploadPartCopyResponse {
 	return uploadPartCopyBase(hc, bktName, objName, false, uploadID, num, srcObj, start, end)
 }