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141 lines
6.6 KiB
141 lines
6.6 KiB
/*
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* MinIO Cloud Storage, (C) 2016 MinIO, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package cmd
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import (
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"context"
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"io"
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"net/http"
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"github.com/minio/minio-go/v6/pkg/encrypt"
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bucketsse "github.com/minio/minio/pkg/bucket/encryption"
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"github.com/minio/minio/pkg/bucket/lifecycle"
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"github.com/minio/minio/pkg/bucket/object/tagging"
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"github.com/minio/minio/pkg/bucket/policy"
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"github.com/minio/minio/pkg/madmin"
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)
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// CheckCopyPreconditionFn returns true if copy precondition check failed.
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type CheckCopyPreconditionFn func(o ObjectInfo, encETag string) bool
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// GetObjectInfoFn is the signature of GetObjectInfo function.
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type GetObjectInfoFn func(ctx context.Context, bucket, object string, opts ObjectOptions) (objInfo ObjectInfo, err error)
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// ObjectOptions represents object options for ObjectLayer operations
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type ObjectOptions struct {
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ServerSideEncryption encrypt.ServerSide
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UserDefined map[string]string
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CheckCopyPrecondFn CheckCopyPreconditionFn
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}
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// LockType represents required locking for ObjectLayer operations
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type LockType int
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const (
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noLock LockType = iota
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readLock
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writeLock
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)
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// ObjectLayer implements primitives for object API layer.
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type ObjectLayer interface {
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// Locking operations on object.
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NewNSLock(ctx context.Context, bucket string, object string) RWLocker
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// Storage operations.
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Shutdown(context.Context) error
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CrawlAndGetDataUsage(context.Context, <-chan struct{}) DataUsageInfo
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StorageInfo(ctx context.Context, local bool) StorageInfo // local queries only local disks
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// Bucket operations.
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MakeBucketWithLocation(ctx context.Context, bucket string, location string) error
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GetBucketInfo(ctx context.Context, bucket string) (bucketInfo BucketInfo, err error)
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ListBuckets(ctx context.Context) (buckets []BucketInfo, err error)
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DeleteBucket(ctx context.Context, bucket string) error
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ListObjects(ctx context.Context, bucket, prefix, marker, delimiter string, maxKeys int) (result ListObjectsInfo, err error)
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ListObjectsV2(ctx context.Context, bucket, prefix, continuationToken, delimiter string, maxKeys int, fetchOwner bool, startAfter string) (result ListObjectsV2Info, err error)
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// Object operations.
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// GetObjectNInfo returns a GetObjectReader that satisfies the
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// ReadCloser interface. The Close method unlocks the object
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// after reading, so it must always be called after usage.
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//
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// IMPORTANTLY, when implementations return err != nil, this
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// function MUST NOT return a non-nil ReadCloser.
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GetObjectNInfo(ctx context.Context, bucket, object string, rs *HTTPRangeSpec, h http.Header, lockType LockType, opts ObjectOptions) (reader *GetObjectReader, err error)
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GetObject(ctx context.Context, bucket, object string, startOffset int64, length int64, writer io.Writer, etag string, opts ObjectOptions) (err error)
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GetObjectInfo(ctx context.Context, bucket, object string, opts ObjectOptions) (objInfo ObjectInfo, err error)
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PutObject(ctx context.Context, bucket, object string, data *PutObjReader, opts ObjectOptions) (objInfo ObjectInfo, err error)
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CopyObject(ctx context.Context, srcBucket, srcObject, destBucket, destObject string, srcInfo ObjectInfo, srcOpts, dstOpts ObjectOptions) (objInfo ObjectInfo, err error)
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DeleteObject(ctx context.Context, bucket, object string) error
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DeleteObjects(ctx context.Context, bucket string, objects []string) ([]error, error)
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// Multipart operations.
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ListMultipartUploads(ctx context.Context, bucket, prefix, keyMarker, uploadIDMarker, delimiter string, maxUploads int) (result ListMultipartsInfo, err error)
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NewMultipartUpload(ctx context.Context, bucket, object string, opts ObjectOptions) (uploadID string, err error)
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CopyObjectPart(ctx context.Context, srcBucket, srcObject, destBucket, destObject string, uploadID string, partID int,
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startOffset int64, length int64, srcInfo ObjectInfo, srcOpts, dstOpts ObjectOptions) (info PartInfo, err error)
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PutObjectPart(ctx context.Context, bucket, object, uploadID string, partID int, data *PutObjReader, opts ObjectOptions) (info PartInfo, err error)
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ListObjectParts(ctx context.Context, bucket, object, uploadID string, partNumberMarker int, maxParts int, opts ObjectOptions) (result ListPartsInfo, err error)
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AbortMultipartUpload(ctx context.Context, bucket, object, uploadID string) error
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CompleteMultipartUpload(ctx context.Context, bucket, object, uploadID string, uploadedParts []CompletePart, opts ObjectOptions) (objInfo ObjectInfo, err error)
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// Healing operations.
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ReloadFormat(ctx context.Context, dryRun bool) error
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HealFormat(ctx context.Context, dryRun bool) (madmin.HealResultItem, error)
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HealBucket(ctx context.Context, bucket string, dryRun, remove bool) (madmin.HealResultItem, error)
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HealObject(ctx context.Context, bucket, object string, dryRun, remove bool, scanMode madmin.HealScanMode) (madmin.HealResultItem, error)
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HealObjects(ctx context.Context, bucket, prefix string, fn healObjectFn) error
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ListBucketsHeal(ctx context.Context) (buckets []BucketInfo, err error)
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// Policy operations
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SetBucketPolicy(context.Context, string, *policy.Policy) error
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GetBucketPolicy(context.Context, string) (*policy.Policy, error)
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DeleteBucketPolicy(context.Context, string) error
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// Supported operations check
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IsNotificationSupported() bool
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IsListenBucketSupported() bool
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IsEncryptionSupported() bool
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// Compression support check.
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IsCompressionSupported() bool
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// Lifecycle operations
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SetBucketLifecycle(context.Context, string, *lifecycle.Lifecycle) error
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GetBucketLifecycle(context.Context, string) (*lifecycle.Lifecycle, error)
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DeleteBucketLifecycle(context.Context, string) error
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// Bucket Encryption operations
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SetBucketSSEConfig(context.Context, string, *bucketsse.BucketSSEConfig) error
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GetBucketSSEConfig(context.Context, string) (*bucketsse.BucketSSEConfig, error)
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DeleteBucketSSEConfig(context.Context, string) error
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// Backend related metrics
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GetMetrics(ctx context.Context) (*Metrics, error)
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// Check Readiness
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IsReady(ctx context.Context) bool
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// ObjectTagging operations
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PutObjectTag(context.Context, string, string, string) error
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GetObjectTag(context.Context, string, string) (tagging.Tagging, error)
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DeleteObjectTag(context.Context, string, string) error
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}
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