134 lines
6.2 KiB
Go
134 lines
6.2 KiB
Go
/*
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* MinIO Go Library for Amazon S3 Compatible Cloud Storage
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* Copyright 2015-2017 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 minio
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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/v7/pkg/encrypt"
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)
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// Core - Inherits Client and adds new methods to expose the low level S3 APIs.
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type Core struct {
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*Client
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}
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// NewCore - Returns new initialized a Core client, this CoreClient should be
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// only used under special conditions such as need to access lower primitives
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// and being able to use them to write your own wrappers.
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func NewCore(endpoint string, opts *Options) (*Core, error) {
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var s3Client Core
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client, err := New(endpoint, opts)
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if err != nil {
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return nil, err
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}
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s3Client.Client = client
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return &s3Client, nil
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}
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// ListObjects - List all the objects at a prefix, optionally with marker and delimiter
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// you can further filter the results.
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func (c Core) ListObjects(bucket, prefix, marker, delimiter string, maxKeys int) (result ListBucketResult, err error) {
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return c.listObjectsQuery(context.Background(), bucket, prefix, marker, delimiter, maxKeys, nil)
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}
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// ListObjectsV2 - Lists all the objects at a prefix, similar to ListObjects() but uses
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// continuationToken instead of marker to support iteration over the results.
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func (c Core) ListObjectsV2(bucketName, objectPrefix, continuationToken string, fetchOwner bool, delimiter string, maxkeys int) (ListBucketV2Result, error) {
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return c.listObjectsV2Query(context.Background(), bucketName, objectPrefix, continuationToken, fetchOwner, false, delimiter, maxkeys, nil)
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}
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// CopyObject - copies an object from source object to destination object on server side.
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func (c Core) CopyObject(ctx context.Context, sourceBucket, sourceObject, destBucket, destObject string, metadata map[string]string, srcOpts CopySrcOptions, dstOpts PutObjectOptions) (ObjectInfo, error) {
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return c.copyObjectDo(ctx, sourceBucket, sourceObject, destBucket, destObject, metadata, srcOpts, dstOpts)
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}
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// CopyObjectPart - creates a part in a multipart upload by copying (a
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// part of) an existing object.
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func (c Core) CopyObjectPart(ctx context.Context, srcBucket, srcObject, destBucket, destObject string, uploadID string,
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partID int, startOffset, length int64, metadata map[string]string) (p CompletePart, err error) {
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return c.copyObjectPartDo(ctx, srcBucket, srcObject, destBucket, destObject, uploadID,
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partID, startOffset, length, metadata)
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}
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// PutObject - Upload object. Uploads using single PUT call.
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func (c Core) PutObject(ctx context.Context, bucket, object string, data io.Reader, size int64, md5Base64, sha256Hex string, opts PutObjectOptions) (UploadInfo, error) {
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hookReader := newHook(data, opts.Progress)
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return c.putObjectDo(ctx, bucket, object, hookReader, md5Base64, sha256Hex, size, opts)
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}
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// NewMultipartUpload - Initiates new multipart upload and returns the new uploadID.
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func (c Core) NewMultipartUpload(ctx context.Context, bucket, object string, opts PutObjectOptions) (uploadID string, err error) {
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result, err := c.initiateMultipartUpload(ctx, bucket, object, opts)
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return result.UploadID, err
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}
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// ListMultipartUploads - List incomplete uploads.
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func (c Core) ListMultipartUploads(ctx context.Context, bucket, prefix, keyMarker, uploadIDMarker, delimiter string, maxUploads int) (result ListMultipartUploadsResult, err error) {
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return c.listMultipartUploadsQuery(ctx, bucket, keyMarker, uploadIDMarker, prefix, delimiter, maxUploads)
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}
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// PutObjectPart - Upload an object part.
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func (c Core) PutObjectPart(ctx context.Context, bucket, object, uploadID string, partID int, data io.Reader, size int64, md5Base64, sha256Hex string, sse encrypt.ServerSide) (ObjectPart, error) {
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return c.uploadPart(ctx, bucket, object, uploadID, data, partID, md5Base64, sha256Hex, size, sse)
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}
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// ListObjectParts - List uploaded parts of an incomplete upload.x
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func (c Core) ListObjectParts(ctx context.Context, bucket, object, uploadID string, partNumberMarker int, maxParts int) (result ListObjectPartsResult, err error) {
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return c.listObjectPartsQuery(ctx, bucket, object, uploadID, partNumberMarker, maxParts)
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}
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// CompleteMultipartUpload - Concatenate uploaded parts and commit to an object.
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func (c Core) CompleteMultipartUpload(ctx context.Context, bucket, object, uploadID string, parts []CompletePart, opts PutObjectOptions) (string, error) {
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res, err := c.completeMultipartUpload(ctx, bucket, object, uploadID, completeMultipartUpload{
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Parts: parts,
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}, opts)
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return res.ETag, err
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}
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// AbortMultipartUpload - Abort an incomplete upload.
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func (c Core) AbortMultipartUpload(ctx context.Context, bucket, object, uploadID string) error {
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return c.abortMultipartUpload(ctx, bucket, object, uploadID)
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}
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// GetBucketPolicy - fetches bucket access policy for a given bucket.
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func (c Core) GetBucketPolicy(ctx context.Context, bucket string) (string, error) {
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return c.getBucketPolicy(ctx, bucket)
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}
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// PutBucketPolicy - applies a new bucket access policy for a given bucket.
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func (c Core) PutBucketPolicy(ctx context.Context, bucket, bucketPolicy string) error {
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return c.putBucketPolicy(ctx, bucket, bucketPolicy)
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}
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// GetObject is a lower level API implemented to support reading
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// partial objects and also downloading objects with special conditions
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// matching etag, modtime etc.
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func (c Core) GetObject(ctx context.Context, bucketName, objectName string, opts GetObjectOptions) (io.ReadCloser, ObjectInfo, http.Header, error) {
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return c.getObject(ctx, bucketName, objectName, opts)
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}
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// StatObject is a lower level API implemented to support special
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// conditions matching etag, modtime on a request.
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func (c Core) StatObject(ctx context.Context, bucketName, objectName string, opts StatObjectOptions) (ObjectInfo, error) {
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return c.statObject(ctx, bucketName, objectName, opts)
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}
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