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Fix CopyObject regression calculating md5sum (#6868)

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CopyObject() failed to calculate proper md5sum
when without encryption headers. This is a regression
fix perhaps introduced in commit 5f6d717b7a

Fixes https://github.com/minio/minio-go/issues/1044
This commit is contained in:
Harshavardhana
2018-11-27 13:23:32 -08:00
committed by kannappanr
parent 12a6523fb2
commit 83fe70f710
3 changed files with 40 additions and 13 deletions
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29
cmd/object-handlers_test.go
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@@ -21,6 +21,7 @@ import (
"context"
"crypto/md5"
"encoding/base64"
"encoding/hex"
"encoding/xml"
"fmt"
"io"
@@ -1811,9 +1812,13 @@ func testAPICopyObjectHandler(obj ObjectLayer, instanceType, bucketName string,
// this is required even to assert the copied object,
bytesData := []struct {
byteData []byte
md5sum string
}{
{generateBytesData(6 * humanize.KiByte)},
{byteData: generateBytesData(6 * humanize.KiByte)},
}
h := md5.New()
h.Write(bytesData[0].byteData)
bytesData[0].md5sum = hex.EncodeToString(h.Sum(nil))
buffers := []*bytes.Buffer{
new(bytes.Buffer),
@@ -1826,23 +1831,29 @@ func testAPICopyObjectHandler(obj ObjectLayer, instanceType, bucketName string,
objectName string
contentLength int64
textData []byte
md5sum string
metaData map[string]string
}{
// case - 1.
{bucketName, objectName, int64(len(bytesData[0].byteData)), bytesData[0].byteData, make(map[string]string)},
{bucketName, objectName, int64(len(bytesData[0].byteData)), bytesData[0].byteData, bytesData[0].md5sum, make(map[string]string)},
// case - 2.
// used for anonymous HTTP request test.
{bucketName, anonObject, int64(len(bytesData[0].byteData)), bytesData[0].byteData, make(map[string]string)},
{bucketName, anonObject, int64(len(bytesData[0].byteData)), bytesData[0].byteData, bytesData[0].md5sum, make(map[string]string)},
}
// iterate through the above set of inputs and upload the object.
for i, input := range putObjectInputs {
// uploading the object.
_, err = obj.PutObject(context.Background(), input.bucketName, input.objectName, mustGetPutObjReader(t, bytes.NewBuffer(input.textData), input.contentLength, input.metaData[""], ""), input.metaData, opts)
var objInfo ObjectInfo
objInfo, err = obj.PutObject(context.Background(), input.bucketName, input.objectName, mustGetPutObjReader(t, bytes.NewBuffer(input.textData), input.contentLength, input.metaData[""], ""), input.metaData, opts)
// if object upload fails stop the test.
if err != nil {
t.Fatalf("Put Object case %d: Error uploading object: <ERROR> %v", i+1, err)
}
if objInfo.ETag != input.md5sum {
t.Fatalf("Put Object case %d: Checksum mismatched: <ERROR> got %s, expected %s", i+1, input.md5sum, objInfo.ETag)
}
}
// test cases with inputs and expected result for Copy Object.
@@ -2105,6 +2116,16 @@ func testAPICopyObjectHandler(obj ObjectLayer, instanceType, bucketName string,
t.Fatalf("Test %d: %s: Expected the response status to be `%d`, but instead found `%d`", i+1, instanceType, testCase.expectedRespStatus, rec.Code)
}
if rec.Code == http.StatusOK {
var cpObjResp CopyObjectResponse
if err = xml.Unmarshal(rec.Body.Bytes(), &cpObjResp); err != nil {
t.Fatalf("Test %d: %s: Failed to parse the CopyObjectResult response: <ERROR> %s", i+1, instanceType, err)
}
retag := canonicalizeETag(cpObjResp.ETag)
if retag != bytesData[0].md5sum {
t.Fatalf("Test %d: %s: Failed to CopyObject: <ERROR> got %s, expected %s", i+1, instanceType, retag, bytesData[0].md5sum)
}
// See if the new object is formed.
// testing whether the copy was successful.
err = obj.GetObject(context.Background(), testCase.bucketName, testCase.newObjectName, 0, int64(len(bytesData[0].byteData)), buffers[0], "", opts)