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2294e53a0b
Use the context for internal timeouts, but disconnect it from outgoing calls so we always receive the results and cancel it remotely.
146 lines
7.5 KiB
Go
146 lines
7.5 KiB
Go
/*
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* MinIO Cloud Storage, (C) 2016-2020 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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"time"
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"github.com/minio/minio-go/v7/pkg/encrypt"
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"github.com/minio/minio-go/v7/pkg/tags"
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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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// CheckPreconditionFn returns true if precondition check failed.
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type CheckPreconditionFn func(o ObjectInfo) 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) (ObjectInfo, error)
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// ObjectOptions represents object options for ObjectLayer object operations
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type ObjectOptions struct {
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ServerSideEncryption encrypt.ServerSide
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VersionSuspended bool // indicates if the bucket was previously versioned but is currently suspended.
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Versioned bool // indicates if the bucket is versioned
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WalkVersions bool // indicates if the we are interested in walking versions
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VersionID string // Specifies the versionID which needs to be overwritten or read
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MTime time.Time // Is only set in POST/PUT operations
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UserDefined map[string]string // only set in case of POST/PUT operations
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PartNumber int // only useful in case of GetObject/HeadObject
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CheckPrecondFn CheckPreconditionFn // only set during GetObject/HeadObject/CopyObjectPart preconditional valuation
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}
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// BucketOptions represents bucket options for ObjectLayer bucket operations
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type BucketOptions struct {
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Location string
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LockEnabled bool
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VersioningEnabled bool
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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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SetDriveCount() int // Only implemented by erasure layer
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// Locking operations on object.
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NewNSLock(bucket string, objects ...string) RWLocker
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// Storage operations.
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Shutdown(context.Context) error
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CrawlAndGetDataUsage(ctx context.Context, bf *bloomFilter, updates chan<- DataUsageInfo) error
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StorageInfo(ctx context.Context, local bool) (StorageInfo, []error) // local queries only local disks
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// Bucket operations.
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MakeBucketWithLocation(ctx context.Context, bucket string, opts BucketOptions) 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, forceDelete bool) 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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ListObjectVersions(ctx context.Context, bucket, prefix, marker, versionMarker, delimiter string, maxKeys int) (result ListObjectVersionsInfo, err error)
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// Walk lists all objects including versions, delete markers.
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Walk(ctx context.Context, bucket, prefix string, results chan<- ObjectInfo, opts ObjectOptions) 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, opts ObjectOptions) (ObjectInfo, error)
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DeleteObjects(ctx context.Context, bucket string, objects []ObjectToDelete, opts ObjectOptions) ([]DeletedObject, []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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GetMultipartInfo(ctx context.Context, bucket, object, uploadID string, opts ObjectOptions) (info MultipartInfo, 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, opts ObjectOptions) 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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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, versionID string, opts madmin.HealOpts) (madmin.HealResultItem, error)
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HealObjects(ctx context.Context, bucket, prefix string, opts madmin.HealOpts, 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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IsListenSupported() bool
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IsEncryptionSupported() bool
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IsTaggingSupported() bool
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IsCompressionSupported() bool
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// Backend related metrics
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GetMetrics(ctx context.Context) (*Metrics, error)
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// Returns health of the backend
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Health(ctx context.Context, opts HealthOptions) HealthResult
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// ObjectTagging operations
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PutObjectTags(context.Context, string, string, string, ObjectOptions) error
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GetObjectTags(context.Context, string, string, ObjectOptions) (*tags.Tags, error)
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DeleteObjectTags(context.Context, string, string, ObjectOptions) error
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}
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