Exemple #1
0
// MakeBucket - PUT Bucket
func (fs Filesystem) MakeBucket(bucket, acl string) *probe.Error {
	fs.lock.Lock()
	defer fs.lock.Unlock()

	stfs, err := disk.Stat(fs.path)
	if err != nil {
		return probe.NewError(err)
	}

	// Remove 5% from total space for cumulative disk space used for journalling, inodes etc.
	availableDiskSpace := (float64(stfs.Free) / (float64(stfs.Total) - (0.05 * float64(stfs.Total)))) * 100
	if int64(availableDiskSpace) <= fs.minFreeDisk {
		return probe.NewError(RootPathFull{Path: fs.path})
	}

	// verify bucket path legal
	if !IsValidBucketName(bucket) {
		return probe.NewError(BucketNameInvalid{Bucket: bucket})
	}

	if !IsValidBucketACL(acl) {
		return probe.NewError(InvalidACL{ACL: acl})
	}

	// get bucket path
	bucketDir := filepath.Join(fs.path, bucket)
	// check if bucket exists
	if _, err = os.Stat(bucketDir); err == nil {
		return probe.NewError(BucketExists{
			Bucket: bucket,
		})
	}

	// make bucket
	err = os.Mkdir(bucketDir, 0700)
	if err != nil {
		return probe.NewError(err)
	}

	bucketMetadata := &BucketMetadata{}
	fi, err := os.Stat(bucketDir)
	// check if bucket exists
	if err != nil {
		if os.IsNotExist(err) {
			return probe.NewError(BucketNotFound{Bucket: bucket})
		}
		return probe.NewError(err)
	}
	if strings.TrimSpace(acl) == "" {
		acl = "private"
	}
	bucketMetadata.Name = fi.Name()
	bucketMetadata.Created = fi.ModTime()
	bucketMetadata.ACL = BucketACL(acl)
	fs.buckets.Metadata[bucket] = bucketMetadata
	if err := saveBucketsMetadata(fs.buckets); err != nil {
		return err.Trace(bucket)
	}
	return nil
}
Exemple #2
0
func (s *MySuite) TestFree(c *C) {
	path, err := ioutil.TempDir(os.TempDir(), "minio-")
	c.Assert(err, IsNil)

	statfs, err := disk.Stat(path)
	c.Assert(err, IsNil)
	c.Assert(statfs.Total, Not(Equals), 0)
	c.Assert(statfs.Free, Not(Equals), 0)
	c.Assert(statfs.FSType, Not(Equals), "UNKNOWN")
}
Exemple #3
0
// MakeBucket - PUT Bucket
func (fs Filesystem) MakeBucket(bucket, acl string) *probe.Error {
	fs.lock.Lock()
	defer fs.lock.Unlock()

	stfs, err := disk.Stat(fs.path)
	if err != nil {
		return probe.NewError(err)
	}

	// Remove 5% from total space for cumulative disk space used for journalling, inodes etc.
	availableDiskSpace := (float64(stfs.Free) / (float64(stfs.Total) - (0.05 * float64(stfs.Total)))) * 100
	if int64(availableDiskSpace) <= fs.minFreeDisk {
		return probe.NewError(RootPathFull{Path: fs.path})
	}

	// verify bucket path legal
	if !IsValidBucket(bucket) {
		return probe.NewError(BucketNameInvalid{Bucket: bucket})
	}

	// get bucket path
	bucketDir := filepath.Join(fs.path, bucket)

	// check if bucket exists
	if _, err = os.Stat(bucketDir); err == nil {
		return probe.NewError(BucketExists{
			Bucket: bucket,
		})
	}

	// make bucket
	err = os.Mkdir(bucketDir, aclToPerm(acl))
	if err != nil {
		return probe.NewError(err)
	}
	return nil
}
Exemple #4
0
// CreateObject - PUT object
func (fs Filesystem) CreateObject(bucket, object, expectedMD5Sum string, size int64, data io.Reader, signature *Signature) (ObjectMetadata, *probe.Error) {
	fs.lock.Lock()
	defer fs.lock.Unlock()

	stfs, err := disk.Stat(fs.path)
	if err != nil {
		return ObjectMetadata{}, probe.NewError(err)
	}

	// Remove 5% from total space for cumulative disk space used for journalling, inodes etc.
	availableDiskSpace := (float64(stfs.Free) / (float64(stfs.Total) - (0.05 * float64(stfs.Total)))) * 100
	if int64(availableDiskSpace) <= fs.minFreeDisk {
		return ObjectMetadata{}, probe.NewError(RootPathFull{Path: fs.path})
	}

	// check bucket name valid
	if !IsValidBucket(bucket) {
		return ObjectMetadata{}, probe.NewError(BucketNameInvalid{Bucket: bucket})
	}
	// check bucket exists
	if _, err = os.Stat(filepath.Join(fs.path, bucket)); os.IsNotExist(err) {
		return ObjectMetadata{}, probe.NewError(BucketNotFound{Bucket: bucket})
	}
	// verify object path legal
	if !IsValidObjectName(object) {
		return ObjectMetadata{}, probe.NewError(ObjectNameInvalid{Bucket: bucket, Object: object})
	}

	// get object path
	objectPath := filepath.Join(fs.path, bucket, object)
	if strings.TrimSpace(expectedMD5Sum) != "" {
		var expectedMD5SumBytes []byte
		expectedMD5SumBytes, err = base64.StdEncoding.DecodeString(strings.TrimSpace(expectedMD5Sum))
		if err != nil {
			// pro-actively close the connection
			return ObjectMetadata{}, probe.NewError(InvalidDigest{Md5: expectedMD5Sum})
		}
		expectedMD5Sum = hex.EncodeToString(expectedMD5SumBytes)
	}

	// write object
	file, err := atomic.FileCreate(objectPath)
	if err != nil {
		return ObjectMetadata{}, probe.NewError(err)
	}

	h := md5.New()
	sh := sha256.New()
	mw := io.MultiWriter(file, h, sh)

	if size > 0 {
		_, err = io.CopyN(mw, data, size)
		if err != nil {
			file.CloseAndPurge()
			return ObjectMetadata{}, probe.NewError(err)
		}
	} else {
		_, err = io.Copy(mw, data)
		if err != nil {
			file.CloseAndPurge()
			return ObjectMetadata{}, probe.NewError(err)
		}
	}

	md5Sum := hex.EncodeToString(h.Sum(nil))
	// Verify if the written object is equal to what is expected, only if it is requested as such
	if strings.TrimSpace(expectedMD5Sum) != "" {
		if err := isMD5SumEqual(strings.TrimSpace(expectedMD5Sum), md5Sum); err != nil {
			file.CloseAndPurge()
			return ObjectMetadata{}, probe.NewError(BadDigest{Md5: expectedMD5Sum, Bucket: bucket, Object: object})
		}
	}
	sha256Sum := hex.EncodeToString(sh.Sum(nil))
	if signature != nil {
		ok, perr := signature.DoesSignatureMatch(sha256Sum)
		if perr != nil {
			file.CloseAndPurge()
			return ObjectMetadata{}, perr.Trace()
		}
		if !ok {
			file.CloseAndPurge()
			return ObjectMetadata{}, probe.NewError(SignatureDoesNotMatch{})
		}
	}
	file.File.Sync()
	file.Close()

	st, err := os.Stat(objectPath)
	if err != nil {
		return ObjectMetadata{}, probe.NewError(err)
	}
	newObject := ObjectMetadata{
		Bucket:      bucket,
		Object:      object,
		Created:     st.ModTime(),
		Size:        st.Size(),
		ContentType: "application/octet-stream",
		Md5:         md5Sum,
	}
	return newObject, nil
}
Exemple #5
0
// CreateObjectPart - create a part in a multipart session
func (fs Filesystem) CreateObjectPart(bucket, object, uploadID, expectedMD5Sum string, partID int, size int64, data io.Reader, signature *Signature) (string, *probe.Error) {
	fs.lock.Lock()
	defer fs.lock.Unlock()

	stfs, err := disk.Stat(fs.path)
	if err != nil {
		return "", probe.NewError(err)
	}

	// Remove 5% from total space for cumulative disk space used for journalling, inodes etc.
	availableDiskSpace := (float64(stfs.Free) / (float64(stfs.Total) - (0.05 * float64(stfs.Total)))) * 100
	if int64(availableDiskSpace) <= fs.minFreeDisk {
		return "", probe.NewError(RootPathFull{Path: fs.path})
	}

	if partID <= 0 {
		return "", probe.NewError(errors.New("invalid part id, cannot be zero or less than zero"))
	}
	// check bucket name valid
	if !IsValidBucketName(bucket) {
		return "", probe.NewError(BucketNameInvalid{Bucket: bucket})
	}

	// verify object path legal
	if !IsValidObjectName(object) {
		return "", probe.NewError(ObjectNameInvalid{Bucket: bucket, Object: object})
	}

	if !fs.isValidUploadID(object, uploadID) {
		return "", probe.NewError(InvalidUploadID{UploadID: uploadID})
	}

	if strings.TrimSpace(expectedMD5Sum) != "" {
		var expectedMD5SumBytes []byte
		expectedMD5SumBytes, err = base64.StdEncoding.DecodeString(strings.TrimSpace(expectedMD5Sum))
		if err != nil {
			// pro-actively close the connection
			return "", probe.NewError(InvalidDigest{Md5: expectedMD5Sum})
		}
		expectedMD5Sum = hex.EncodeToString(expectedMD5SumBytes)
	}

	bucketPath := filepath.Join(fs.path, bucket)
	if _, err = os.Stat(bucketPath); err != nil {
		// check bucket exists
		if os.IsNotExist(err) {
			return "", probe.NewError(BucketNotFound{Bucket: bucket})
		}
		if err != nil {
			return "", probe.NewError(InternalError{})
		}
	}

	objectPath := filepath.Join(bucketPath, object)
	partPath := objectPath + fmt.Sprintf("$%d-$multiparts", partID)
	partFile, err := atomic.FileCreateWithPrefix(partPath, "$multiparts")
	if err != nil {
		return "", probe.NewError(err)
	}
	h := md5.New()
	sh := sha256.New()
	mw := io.MultiWriter(partFile, h, sh)
	_, err = io.CopyN(mw, data, size)
	if err != nil {
		partFile.CloseAndPurge()
		return "", probe.NewError(err)
	}
	md5sum := hex.EncodeToString(h.Sum(nil))
	// Verify if the written object is equal to what is expected, only if it is requested as such
	if strings.TrimSpace(expectedMD5Sum) != "" {
		if err := isMD5SumEqual(strings.TrimSpace(expectedMD5Sum), md5sum); err != nil {
			partFile.CloseAndPurge()
			return "", probe.NewError(BadDigest{Md5: expectedMD5Sum, Bucket: bucket, Object: object})
		}
	}
	if signature != nil {
		ok, perr := signature.DoesSignatureMatch(hex.EncodeToString(sh.Sum(nil)))
		if perr != nil {
			partFile.CloseAndPurge()
			return "", perr.Trace()
		}
		if !ok {
			partFile.CloseAndPurge()
			return "", probe.NewError(SignatureDoesNotMatch{})
		}
	}
	partFile.Close()

	fi, err := os.Stat(partPath)
	if err != nil {
		return "", probe.NewError(err)
	}
	partMetadata := PartMetadata{}
	partMetadata.ETag = md5sum
	partMetadata.PartNumber = partID
	partMetadata.Size = fi.Size()
	partMetadata.LastModified = fi.ModTime()

	multiPartfile, err := os.OpenFile(objectPath+"$multiparts", os.O_RDWR|os.O_APPEND, 0600)
	if err != nil {
		return "", probe.NewError(err)
	}
	defer multiPartfile.Close()

	var deserializedMultipartSession MultipartSession
	decoder := json.NewDecoder(multiPartfile)
	err = decoder.Decode(&deserializedMultipartSession)
	if err != nil {
		return "", probe.NewError(err)
	}
	deserializedMultipartSession.Parts = append(deserializedMultipartSession.Parts, &partMetadata)
	deserializedMultipartSession.TotalParts++
	fs.multiparts.ActiveSession[object] = &deserializedMultipartSession

	sort.Sort(partNumber(deserializedMultipartSession.Parts))
	encoder := json.NewEncoder(multiPartfile)
	err = encoder.Encode(&deserializedMultipartSession)
	if err != nil {
		return "", probe.NewError(err)
	}
	return partMetadata.ETag, nil
}
Exemple #6
0
// NewMultipartUpload - initiate a new multipart session
func (fs Filesystem) NewMultipartUpload(bucket, object string) (string, *probe.Error) {
	fs.lock.Lock()
	defer fs.lock.Unlock()

	stfs, err := disk.Stat(fs.path)
	if err != nil {
		return "", probe.NewError(err)
	}

	// Remove 5% from total space for cumulative disk space used for journalling, inodes etc.
	availableDiskSpace := (float64(stfs.Free) / (float64(stfs.Total) - (0.05 * float64(stfs.Total)))) * 100
	if int64(availableDiskSpace) <= fs.minFreeDisk {
		return "", probe.NewError(RootPathFull{Path: fs.path})
	}

	if !IsValidBucketName(bucket) {
		return "", probe.NewError(BucketNameInvalid{Bucket: bucket})
	}
	if !IsValidObjectName(object) {
		return "", probe.NewError(ObjectNameInvalid{Object: object})
	}

	bucketPath := filepath.Join(fs.path, bucket)
	_, err = os.Stat(bucketPath)
	// check bucket exists
	if os.IsNotExist(err) {
		return "", probe.NewError(BucketNotFound{Bucket: bucket})
	}
	if err != nil {
		return "", probe.NewError(InternalError{})
	}
	objectPath := filepath.Join(bucketPath, object)
	objectDir := filepath.Dir(objectPath)
	if _, err = os.Stat(objectDir); os.IsNotExist(err) {
		err = os.MkdirAll(objectDir, 0700)
		if err != nil {
			return "", probe.NewError(err)
		}
	}

	id := []byte(strconv.FormatInt(rand.Int63(), 10) + bucket + object + time.Now().String())
	uploadIDSum := sha512.Sum512(id)
	uploadID := base64.URLEncoding.EncodeToString(uploadIDSum[:])[:47]

	multiPartfile, err := os.OpenFile(objectPath+"$multiparts", os.O_WRONLY|os.O_CREATE, 0600)
	if err != nil {
		return "", probe.NewError(err)
	}
	defer multiPartfile.Close()

	mpartSession := new(MultipartSession)
	mpartSession.TotalParts = 0
	mpartSession.UploadID = uploadID
	mpartSession.Initiated = time.Now().UTC()
	var parts []*PartMetadata
	mpartSession.Parts = parts
	fs.multiparts.ActiveSession[object] = mpartSession

	encoder := json.NewEncoder(multiPartfile)
	err = encoder.Encode(mpartSession)
	if err != nil {
		return "", probe.NewError(err)
	}
	if err := saveMultipartsSession(fs.multiparts); err != nil {
		return "", err.Trace()
	}
	return uploadID, nil
}