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Simplify data verification with HashReader. (#5071)

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Verify() was being called by caller after the data
has been successfully read after io.EOF. This disconnection
opens a race under concurrent access to such an object.
Verification is not necessary outside of Read() call,
we can simply just do checksum verification right inside
Read() call at io.EOF.

This approach simplifies the usage.
This commit is contained in:
Harshavardhana
2017-10-21 22:30:34 -07:00
committed by Nitish Tiwari
parent 65a817fe8c
commit 1d8a8c63db
51 changed files with 749 additions and 499 deletions
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30
cmd/object-api-multipart_test.go
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@@ -24,6 +24,7 @@ import (
"testing"
humanize "github.com/dustin/go-humanize"
"github.com/minio/minio/pkg/hash"
)
// Wrapper for calling NewMultipartUpload tests for both XL multiple disks and single node setup.
@@ -218,7 +219,7 @@ func testPutObjectPartDiskNotFound(obj ObjectLayer, instanceType string, disks [
sha256sum := ""
// Iterating over creatPartCases to generate multipart chunks.
for _, testCase := range createPartCases {
_, err = obj.PutObjectPart(testCase.bucketName, testCase.objName, testCase.uploadID, testCase.PartID, NewHashReader(bytes.NewBufferString(testCase.inputReaderData), testCase.intputDataSize, testCase.inputMd5, sha256sum))
_, err = obj.PutObjectPart(testCase.bucketName, testCase.objName, testCase.uploadID, testCase.PartID, mustGetHashReader(t, bytes.NewBufferString(testCase.inputReaderData), testCase.intputDataSize, testCase.inputMd5, sha256sum))
if err != nil {
t.Fatalf("%s : %s", instanceType, err.Error())
}
@@ -232,7 +233,7 @@ func testPutObjectPartDiskNotFound(obj ObjectLayer, instanceType string, disks [
// Object part upload should fail with quorum not available.
testCase := createPartCases[len(createPartCases)-1]
_, err = obj.PutObjectPart(testCase.bucketName, testCase.objName, testCase.uploadID, testCase.PartID, NewHashReader(bytes.NewBufferString(testCase.inputReaderData), testCase.intputDataSize, testCase.inputMd5, sha256sum))
_, err = obj.PutObjectPart(testCase.bucketName, testCase.objName, testCase.uploadID, testCase.PartID, mustGetHashReader(t, bytes.NewBufferString(testCase.inputReaderData), testCase.intputDataSize, testCase.inputMd5, sha256sum))
if err == nil {
t.Fatalf("Test %s: expected to fail but passed instead", instanceType)
}
@@ -324,18 +325,21 @@ func testObjectAPIPutObjectPart(obj ObjectLayer, instanceType string, t TestErrH
{bucket, "none-object", uploadID, 1, "", "", "", 0, false, "", fmt.Errorf("%s", "Invalid upload id "+uploadID)},
// Test case - 12.
// Input to replicate Md5 mismatch.
{bucket, object, uploadID, 1, "", "a35", "", 0, false, "",
fmt.Errorf("%s", "Bad digest: Expected a35 is not valid with what we calculated "+"d41d8cd98f00b204e9800998ecf8427e")},
{bucket, object, uploadID, 1, "", "d41d8cd98f00b204e9800998ecf8427f", "", 0, false, "",
hash.BadDigest{"d41d8cd98f00b204e9800998ecf8427f", "d41d8cd98f00b204e9800998ecf8427e"}},
// Test case - 13.
// When incorrect sha256 is provided.
{bucket, object, uploadID, 1, "", "", "incorrect-sha256", 0, false, "", SHA256Mismatch{}},
{bucket, object, uploadID, 1, "", "", "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b854", 0, false, "",
hash.SHA256Mismatch{"e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b854",
"e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855"}},
// Test case - 14.
// Input with size more than the size of actual data inside the reader.
{bucket, object, uploadID, 1, "abcd", "a35", "", int64(len("abcd") + 1), false, "", IncompleteBody{}},
{bucket, object, uploadID, 1, "abcd", "e2fc714c4727ee9395f324cd2e7f3335", "", int64(len("abcd") + 1), false, "",
hash.BadDigest{"e2fc714c4727ee9395f324cd2e7f3335", "e2fc714c4727ee9395f324cd2e7f331f"}},
// Test case - 15.
// Input with size less than the size of actual data inside the reader.
{bucket, object, uploadID, 1, "abcd", "a35", "", int64(len("abcd") - 1), false, "",
fmt.Errorf("%s", "Bad digest: Expected a35 is not valid with what we calculated 900150983cd24fb0d6963f7d28e17f72")},
{bucket, object, uploadID, 1, "abcd", "900150983cd24fb0d6963f7d28e17f73", "", int64(len("abcd") - 1), false, "",
hash.BadDigest{"900150983cd24fb0d6963f7d28e17f73", "900150983cd24fb0d6963f7d28e17f72"}},
// Test case - 16-19.
// Validating for success cases.
@@ -347,7 +351,7 @@ func testObjectAPIPutObjectPart(obj ObjectLayer, instanceType string, t TestErrH
// Validate all the test cases.
for i, testCase := range testCases {
actualInfo, actualErr := obj.PutObjectPart(testCase.bucketName, testCase.objName, testCase.uploadID, testCase.PartID, NewHashReader(bytes.NewBufferString(testCase.inputReaderData), testCase.intputDataSize, testCase.inputMd5, testCase.inputSHA256))
actualInfo, actualErr := obj.PutObjectPart(testCase.bucketName, testCase.objName, testCase.uploadID, testCase.PartID, mustGetHashReader(t, bytes.NewBufferString(testCase.inputReaderData), testCase.intputDataSize, testCase.inputMd5, testCase.inputSHA256))
// All are test cases above are expected to fail.
if actualErr != nil && testCase.shouldPass {
t.Errorf("Test %d: %s: Expected to pass, but failed with: <ERROR> %s.", i+1, instanceType, actualErr.Error())
@@ -481,7 +485,7 @@ func testListMultipartUploads(obj ObjectLayer, instanceType string, t TestErrHan
sha256sum := ""
// Iterating over creatPartCases to generate multipart chunks.
for _, testCase := range createPartCases {
_, err := obj.PutObjectPart(testCase.bucketName, testCase.objName, testCase.uploadID, testCase.PartID, NewHashReader(bytes.NewBufferString(testCase.inputReaderData), testCase.intputDataSize, testCase.inputMd5, sha256sum))
_, err := obj.PutObjectPart(testCase.bucketName, testCase.objName, testCase.uploadID, testCase.PartID, mustGetHashReader(t, bytes.NewBufferString(testCase.inputReaderData), testCase.intputDataSize, testCase.inputMd5, sha256sum))
if err != nil {
t.Fatalf("%s : %s", instanceType, err.Error())
}
@@ -1336,7 +1340,7 @@ func testListObjectPartsDiskNotFound(obj ObjectLayer, instanceType string, disks
sha256sum := ""
// Iterating over creatPartCases to generate multipart chunks.
for _, testCase := range createPartCases {
_, err := obj.PutObjectPart(testCase.bucketName, testCase.objName, testCase.uploadID, testCase.PartID, NewHashReader(bytes.NewBufferString(testCase.inputReaderData), testCase.intputDataSize, testCase.inputMd5, sha256sum))
_, err := obj.PutObjectPart(testCase.bucketName, testCase.objName, testCase.uploadID, testCase.PartID, mustGetHashReader(t, bytes.NewBufferString(testCase.inputReaderData), testCase.intputDataSize, testCase.inputMd5, sha256sum))
if err != nil {
t.Fatalf("%s : %s", instanceType, err.Error())
}
@@ -1576,7 +1580,7 @@ func testListObjectParts(obj ObjectLayer, instanceType string, t TestErrHandler)
sha256sum := ""
// Iterating over creatPartCases to generate multipart chunks.
for _, testCase := range createPartCases {
_, err := obj.PutObjectPart(testCase.bucketName, testCase.objName, testCase.uploadID, testCase.PartID, NewHashReader(bytes.NewBufferString(testCase.inputReaderData), testCase.intputDataSize, testCase.inputMd5, sha256sum))
_, err := obj.PutObjectPart(testCase.bucketName, testCase.objName, testCase.uploadID, testCase.PartID, mustGetHashReader(t, bytes.NewBufferString(testCase.inputReaderData), testCase.intputDataSize, testCase.inputMd5, sha256sum))
if err != nil {
t.Fatalf("%s : %s", instanceType, err.Error())
}
@@ -1825,7 +1829,7 @@ func testObjectCompleteMultipartUpload(obj ObjectLayer, instanceType string, t T
sha256sum := ""
// Iterating over creatPartCases to generate multipart chunks.
for _, part := range parts {
_, err = obj.PutObjectPart(part.bucketName, part.objName, part.uploadID, part.PartID, NewHashReader(bytes.NewBufferString(part.inputReaderData), part.intputDataSize, part.inputMd5, sha256sum))
_, err = obj.PutObjectPart(part.bucketName, part.objName, part.uploadID, part.PartID, mustGetHashReader(t, bytes.NewBufferString(part.inputReaderData), part.intputDataSize, part.inputMd5, sha256sum))
if err != nil {
t.Fatalf("%s : %s", instanceType, err)
}