mirror of https://github.com/minio/minio.git
992 lines
30 KiB
Go
992 lines
30 KiB
Go
/*
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* Minio Cloud Storage, (C) 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 oss
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import (
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"encoding/xml"
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"fmt"
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"io"
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"io/ioutil"
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"net/http"
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"strconv"
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"strings"
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"github.com/aliyun/aliyun-oss-go-sdk/oss"
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"github.com/dustin/go-humanize"
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"github.com/minio/cli"
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"github.com/minio/minio-go/pkg/policy"
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minio "github.com/minio/minio/cmd"
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"github.com/minio/minio/pkg/auth"
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"github.com/minio/minio/pkg/errors"
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"github.com/minio/minio/pkg/hash"
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)
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const (
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ossS3MinPartSize = 5 * humanize.MiByte
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ossMaxParts = 1000
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ossMaxKeys = 1000
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ossBackend = "oss"
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)
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func init() {
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const ossGatewayTemplate = `NAME:
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{{.HelpName}} - {{.Usage}}
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USAGE:
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{{.HelpName}} {{if .VisibleFlags}}[FLAGS]{{end}} [ENDPOINT]
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{{if .VisibleFlags}}
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FLAGS:
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{{range .VisibleFlags}}{{.}}
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{{end}}{{end}}
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ENDPOINT:
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OSS server endpoint. Default ENDPOINT is https://oss.aliyuncs.com
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ENVIRONMENT VARIABLES:
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ACCESS:
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MINIO_ACCESS_KEY: Username or access key of OSS storage.
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MINIO_SECRET_KEY: Password or secret key of OSS storage.
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BROWSER:
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MINIO_BROWSER: To disable web browser access, set this value to "off".
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EXAMPLES:
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1. Start minio gateway server for Aliyun OSS backend.
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$ export MINIO_ACCESS_KEY=accesskey
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$ export MINIO_SECRET_KEY=secretkey
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$ {{.HelpName}}
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2. Start minio gateway server for Aliyun OSS backend on custom endpoint.
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$ export MINIO_ACCESS_KEY=Q3AM3UQ867SPQQA43P2F
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$ export MINIO_SECRET_KEY=zuf+tfteSlswRu7BJ86wekitnifILbZam1KYY3TG
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$ {{.HelpName}} https://oss.example.com
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`
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minio.RegisterGatewayCommand(cli.Command{
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Name: "oss",
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Usage: "Alibaba Cloud (Aliyun) Object Storage Service (OSS).",
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Action: ossGatewayMain,
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CustomHelpTemplate: ossGatewayTemplate,
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HideHelpCommand: true,
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})
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}
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// Handler for 'minio gateway oss' command line.
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func ossGatewayMain(ctx *cli.Context) {
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if ctx.Args().First() == "help" {
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cli.ShowCommandHelpAndExit(ctx, ossBackend, 1)
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}
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// Validate gateway arguments.
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host := ctx.Args().First()
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minio.FatalIf(minio.ValidateGatewayArguments(ctx.GlobalString("address"), host), "Invalid argument")
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minio.StartGateway(ctx, &OSS{host})
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}
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// OSS implements Gateway.
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type OSS struct {
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host string
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}
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// Name implements Gateway interface.
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func (g *OSS) Name() string {
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return ossBackend
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}
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// NewGatewayLayer implements Gateway interface and returns OSS GatewayLayer.
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func (g *OSS) NewGatewayLayer(creds auth.Credentials) (minio.GatewayLayer, error) {
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var err error
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// Regions and endpoints
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// https://www.alibabacloud.com/help/doc-detail/31837.htm
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if g.host == "" {
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g.host = "https://oss.aliyuncs.com"
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}
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// Initialize oss client object.
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client, err := oss.New(g.host, creds.AccessKey, creds.SecretKey)
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if err != nil {
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return nil, err
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}
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anonClient, err := oss.New(g.host, "", "")
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if err != nil {
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return nil, err
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}
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return &ossObjects{
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Client: client,
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anonClient: anonClient,
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}, nil
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}
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// Production - oss is not production ready yet.
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func (g *OSS) Production() bool {
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return false
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}
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// appendS3MetaToOSSOptions converts metadata meant for S3 PUT/COPY
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// object into oss.Option.
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//
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// S3 user-metadata is translated to OSS metadata by removing the
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// `X-Amz-Meta-` prefix and converted into `X-Oss-Meta-`.
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//
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// Header names are canonicalized as in http.Header.
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func appendS3MetaToOSSOptions(opts []oss.Option, s3Metadata map[string]string) ([]oss.Option, error) {
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if opts == nil {
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opts = make([]oss.Option, 0, len(s3Metadata))
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}
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for k, v := range s3Metadata {
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k = http.CanonicalHeaderKey(k)
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switch {
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case strings.HasPrefix(k, "X-Amz-Meta-"):
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metaKey := k[len("X-Amz-Meta-"):]
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// NOTE(timonwong): OSS won't allow headers with underscore(_).
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if strings.Contains(metaKey, "_") {
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return nil, errors.Trace(minio.UnsupportedMetadata{})
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}
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opts = append(opts, oss.Meta(metaKey, v))
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case k == "X-Amz-Acl":
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// Valid values: public-read, private, and public-read-write
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opts = append(opts, oss.ObjectACL(oss.ACLType(v)))
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case k == "X-Amz-Server-Side-Encryption":
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opts = append(opts, oss.ServerSideEncryption(v))
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case k == "X-Amz-Copy-Source-If-Match":
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opts = append(opts, oss.CopySourceIfMatch(v))
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case k == "X-Amz-Copy-Source-If-None-Match":
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opts = append(opts, oss.CopySourceIfNoneMatch(v))
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case k == "X-Amz-Copy-Source-If-Unmodified-Since":
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if v, err := http.ParseTime(v); err == nil {
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opts = append(opts, oss.CopySourceIfUnmodifiedSince(v))
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}
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case k == "X-Amz-Copy-Source-If-Modified-Since":
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if v, err := http.ParseTime(v); err == nil {
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opts = append(opts, oss.CopySourceIfModifiedSince(v))
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}
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case k == "Accept-Encoding":
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opts = append(opts, oss.AcceptEncoding(v))
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case k == "Cache-Control":
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opts = append(opts, oss.CacheControl(v))
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case k == "Content-Disposition":
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opts = append(opts, oss.ContentDisposition(v))
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case k == "Content-Encoding":
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opts = append(opts, oss.ContentEncoding(v))
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case k == "Content-Length":
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if v, err := strconv.ParseInt(v, 10, 64); err == nil {
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opts = append(opts, oss.ContentLength(v))
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}
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case k == "Content-MD5":
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opts = append(opts, oss.ContentMD5(v))
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case k == "Content-Type":
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opts = append(opts, oss.ContentType(v))
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case k == "Expires":
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if v, err := http.ParseTime(v); err == nil {
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opts = append(opts, oss.Expires(v))
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}
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}
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}
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return opts, nil
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}
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// ossMetaToS3Meta converts OSS metadata to S3 metadata.
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// It is the reverse of appendS3MetaToOSSOptions.
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func ossHeaderToS3Meta(header http.Header) map[string]string {
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// Decoding technique for each key is used here is as follows
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// Each '_' is converted to '-'
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// Each '__' is converted to '_'
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// With this basic assumption here are some of the expected
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// translations for these keys.
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// i: 'x_s3cmd__attrs' -> o: 'x-s3cmd_attrs' (mixed)
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// i: 'x____test____value' -> o: 'x__test__value' (double '_')
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decodeKey := func(key string) string {
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tokens := strings.Split(key, "__")
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for i := range tokens {
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tokens[i] = strings.Replace(tokens[i], "_", "-", -1)
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}
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return strings.Join(tokens, "_")
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}
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s3Metadata := make(map[string]string)
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for k := range header {
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k = http.CanonicalHeaderKey(k)
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switch {
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case strings.HasPrefix(k, oss.HTTPHeaderOssMetaPrefix):
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// Add amazon s3 meta prefix
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metaKey := k[len(oss.HTTPHeaderOssMetaPrefix):]
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metaKey = "X-Amz-Meta-" + decodeKey(metaKey)
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metaKey = http.CanonicalHeaderKey(metaKey)
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s3Metadata[metaKey] = header.Get(k)
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case k == "Cache-Control":
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fallthrough
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case k == "Content-Encoding":
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fallthrough
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case k == "Content-Disposition":
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fallthrough
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case k == "Content-Length":
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fallthrough
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case k == "Content-MD5":
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fallthrough
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case k == "Content-Type":
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s3Metadata[k] = header.Get(k)
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}
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}
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return s3Metadata
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}
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// ossToObjectError converts OSS errors to minio object layer errors.
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func ossToObjectError(err error, params ...string) error {
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if err == nil {
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return nil
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}
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e, ok := err.(*errors.Error)
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if !ok {
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// Code should be fixed if this function is called without doing errors.Trace()
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// Else handling different situations in this function makes this function complicated.
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minio.ErrorIf(err, "Expected type *Error")
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return err
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}
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err = e.Cause
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bucket := ""
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object := ""
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uploadID := ""
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switch len(params) {
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case 3:
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uploadID = params[2]
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fallthrough
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case 2:
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object = params[1]
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fallthrough
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case 1:
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bucket = params[0]
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}
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ossErr, ok := err.(oss.ServiceError)
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if !ok {
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// We don't interpret non OSS errors. As oss errors will
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// have StatusCode to help to convert to object errors.
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return e
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}
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switch ossErr.Code {
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case "BucketAlreadyExists":
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err = minio.BucketAlreadyOwnedByYou{Bucket: bucket}
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case "BucketNotEmpty":
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err = minio.BucketNotEmpty{Bucket: bucket}
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case "InvalidBucketName":
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err = minio.BucketNameInvalid{Bucket: bucket}
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case "NoSuchBucket":
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err = minio.BucketNotFound{Bucket: bucket}
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case "NoSuchKey":
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if object != "" {
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err = minio.ObjectNotFound{Bucket: bucket, Object: object}
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} else {
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err = minio.BucketNotFound{Bucket: bucket}
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}
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case "InvalidObjectName":
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err = minio.ObjectNameInvalid{Bucket: bucket, Object: object}
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case "AccessDenied":
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err = minio.PrefixAccessDenied{Bucket: bucket, Object: object}
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case "NoSuchUpload":
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err = minio.InvalidUploadID{UploadID: uploadID}
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case "EntityTooSmall":
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err = minio.PartTooSmall{}
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case "SignatureDoesNotMatch":
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err = minio.SignatureDoesNotMatch{}
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case "InvalidPart":
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err = minio.InvalidPart{}
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}
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e.Cause = err
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return e
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}
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// ossObjects implements gateway for Aliyun Object Storage Service.
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type ossObjects struct {
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minio.GatewayUnsupported
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Client *oss.Client
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anonClient *oss.Client
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}
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// Shutdown saves any gateway metadata to disk
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// if necessary and reload upon next restart.
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func (l *ossObjects) Shutdown() error {
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return nil
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}
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// StorageInfo is not relevant to OSS backend.
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func (l *ossObjects) StorageInfo() (si minio.StorageInfo) {
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return
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}
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// ossIsValidBucketName verifies whether a bucket name is valid.
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func ossIsValidBucketName(bucket string) bool {
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// dot is not allowed in bucket name
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if strings.Contains(bucket, ".") {
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return false
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}
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if !minio.IsValidBucketName(bucket) {
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return false
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}
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return true
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}
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// MakeBucketWithLocation creates a new container on OSS backend.
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func (l *ossObjects) MakeBucketWithLocation(bucket, location string) error {
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if !ossIsValidBucketName(bucket) {
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return errors.Trace(minio.BucketNameInvalid{Bucket: bucket})
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}
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err := l.Client.CreateBucket(bucket)
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return ossToObjectError(errors.Trace(err), bucket)
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}
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// ossGeBucketInfo gets bucket metadata.
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func ossGeBucketInfo(client *oss.Client, bucket string) (bi minio.BucketInfo, err error) {
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if !ossIsValidBucketName(bucket) {
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return bi, errors.Trace(minio.BucketNameInvalid{Bucket: bucket})
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}
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bgir, err := client.GetBucketInfo(bucket)
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if err != nil {
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return bi, ossToObjectError(errors.Trace(err), bucket)
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}
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return minio.BucketInfo{
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Name: bgir.BucketInfo.Name,
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Created: bgir.BucketInfo.CreationDate,
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}, nil
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}
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// GetBucketInfo gets bucket metadata.
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func (l *ossObjects) GetBucketInfo(bucket string) (bi minio.BucketInfo, err error) {
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return ossGeBucketInfo(l.Client, bucket)
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}
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// ListBuckets lists all OSS buckets.
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func (l *ossObjects) ListBuckets() (buckets []minio.BucketInfo, err error) {
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marker := oss.Marker("")
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for {
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lbr, err := l.Client.ListBuckets(marker)
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if err != nil {
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return nil, ossToObjectError(errors.Trace(err))
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}
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for _, bi := range lbr.Buckets {
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buckets = append(buckets, minio.BucketInfo{
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Name: bi.Name,
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Created: bi.CreationDate,
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})
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}
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marker = oss.Marker(lbr.NextMarker)
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if !lbr.IsTruncated {
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break
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}
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}
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return buckets, nil
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}
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// DeleteBucket deletes a bucket on OSS.
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func (l *ossObjects) DeleteBucket(bucket string) error {
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err := l.Client.DeleteBucket(bucket)
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if err != nil {
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return ossToObjectError(errors.Trace(err), bucket)
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}
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return nil
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}
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// fromOSSClientObjectProperties converts oss ObjectProperties to ObjectInfo.
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func fromOSSClientObjectProperties(bucket string, o oss.ObjectProperties) minio.ObjectInfo {
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// NOTE(timonwong): No Content-Type and user defined metadata.
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// https://www.alibabacloud.com/help/doc-detail/31965.htm
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return minio.ObjectInfo{
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Bucket: bucket,
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Name: o.Key,
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ModTime: o.LastModified,
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Size: o.Size,
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ETag: minio.ToS3ETag(o.ETag),
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}
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}
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// fromOSSClientListObjectsResult converts oss ListBucketResult to ListObjectsInfo.
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func fromOSSClientListObjectsResult(bucket string, lor oss.ListObjectsResult) minio.ListObjectsInfo {
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objects := make([]minio.ObjectInfo, len(lor.Objects))
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for i, oi := range lor.Objects {
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objects[i] = fromOSSClientObjectProperties(bucket, oi)
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}
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prefixes := make([]string, len(lor.CommonPrefixes))
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copy(prefixes, lor.CommonPrefixes)
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return minio.ListObjectsInfo{
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IsTruncated: lor.IsTruncated,
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NextMarker: lor.NextMarker,
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Objects: objects,
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Prefixes: prefixes,
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}
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}
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// ossListObjects lists all blobs in OSS bucket filtered by prefix.
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func ossListObjects(client *oss.Client, bucket, prefix, marker, delimiter string, maxKeys int) (loi minio.ListObjectsInfo, err error) {
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buck, err := client.Bucket(bucket)
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if err != nil {
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return loi, ossToObjectError(errors.Trace(err), bucket)
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}
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// maxKeys should default to 1000 or less.
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if maxKeys == 0 || maxKeys > ossMaxKeys {
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maxKeys = ossMaxKeys
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}
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lor, err := buck.ListObjects(oss.Prefix(prefix), oss.Marker(marker), oss.Delimiter(delimiter), oss.MaxKeys(maxKeys))
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if err != nil {
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return loi, ossToObjectError(errors.Trace(err), bucket)
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}
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return fromOSSClientListObjectsResult(bucket, lor), nil
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}
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// ossListObjectsV2 lists all blobs in OSS bucket filtered by prefix.
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func ossListObjectsV2(client *oss.Client, bucket, prefix, continuationToken, delimiter string, maxKeys int,
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fetchOwner bool, startAfter string) (loi minio.ListObjectsV2Info, err error) {
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// fetchOwner and startAfter are not supported and unused.
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marker := continuationToken
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resultV1, err := ossListObjects(client, bucket, prefix, marker, delimiter, maxKeys)
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if err != nil {
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return loi, err
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}
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return minio.ListObjectsV2Info{
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Objects: resultV1.Objects,
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Prefixes: resultV1.Prefixes,
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ContinuationToken: continuationToken,
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NextContinuationToken: resultV1.NextMarker,
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IsTruncated: resultV1.IsTruncated,
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}, nil
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}
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// ListObjects lists all blobs in OSS bucket filtered by prefix.
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func (l *ossObjects) ListObjects(bucket, prefix, marker, delimiter string, maxKeys int) (loi minio.ListObjectsInfo, err error) {
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return ossListObjects(l.Client, bucket, prefix, marker, delimiter, maxKeys)
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}
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// ListObjectsV2 lists all blobs in OSS bucket filtered by prefix
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func (l *ossObjects) ListObjectsV2(bucket, prefix, continuationToken, delimiter string, maxKeys int,
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fetchOwner bool, startAfter string) (loi minio.ListObjectsV2Info, err error) {
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return ossListObjectsV2(l.Client, bucket, prefix, continuationToken, delimiter, maxKeys, fetchOwner, startAfter)
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}
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// ossGetObject reads an object on OSS. Supports additional
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// parameters like offset and length which are synonymous with
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// HTTP Range requests.
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//
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// startOffset indicates the starting read location of the object.
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// length indicates the total length of the object.
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func ossGetObject(client *oss.Client, bucket, key string, startOffset, length int64, writer io.Writer) error {
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if length < 0 && length != -1 {
|
||
return ossToObjectError(errors.Trace(fmt.Errorf("Invalid argument")), bucket, key)
|
||
}
|
||
|
||
bkt, err := client.Bucket(bucket)
|
||
if err != nil {
|
||
return ossToObjectError(errors.Trace(err), bucket, key)
|
||
}
|
||
|
||
var opts []oss.Option
|
||
if startOffset >= 0 && length >= 0 {
|
||
opts = append(opts, oss.Range(startOffset, startOffset+length-1))
|
||
}
|
||
|
||
object, err := bkt.GetObject(key, opts...)
|
||
if err != nil {
|
||
return ossToObjectError(errors.Trace(err), bucket, key)
|
||
}
|
||
defer object.Close()
|
||
|
||
if _, err := io.Copy(writer, object); err != nil {
|
||
return ossToObjectError(errors.Trace(err), bucket, key)
|
||
}
|
||
return nil
|
||
}
|
||
|
||
// GetObject reads an object on OSS. Supports additional
|
||
// parameters like offset and length which are synonymous with
|
||
// HTTP Range requests.
|
||
//
|
||
// startOffset indicates the starting read location of the object.
|
||
// length indicates the total length of the object.
|
||
func (l *ossObjects) GetObject(bucket, key string, startOffset, length int64, writer io.Writer) error {
|
||
return ossGetObject(l.Client, bucket, key, startOffset, length, writer)
|
||
}
|
||
|
||
func translatePlainError(err error) error {
|
||
errString := err.Error()
|
||
|
||
switch errString {
|
||
case "oss: service returned without a response body (404 Not Found)":
|
||
return oss.ServiceError{Code: "NoSuchKey"}
|
||
case "oss: service returned without a response body (400 Bad Request)":
|
||
return oss.ServiceError{Code: "AccessDenied"}
|
||
}
|
||
|
||
return err
|
||
}
|
||
|
||
// ossGetObjectInfo reads object info and replies back ObjectInfo.
|
||
func ossGetObjectInfo(client *oss.Client, bucket, object string) (objInfo minio.ObjectInfo, err error) {
|
||
bkt, err := client.Bucket(bucket)
|
||
if err != nil {
|
||
return objInfo, ossToObjectError(errors.Trace(err), bucket, object)
|
||
}
|
||
|
||
header, err := bkt.GetObjectDetailedMeta(object)
|
||
if err != nil {
|
||
return objInfo, ossToObjectError(errors.Trace(translatePlainError(err)), bucket, object)
|
||
}
|
||
|
||
// Build S3 metadata from OSS metadata
|
||
userDefined := ossHeaderToS3Meta(header)
|
||
|
||
modTime, _ := http.ParseTime(header.Get("Last-Modified"))
|
||
size, _ := strconv.ParseInt(header.Get("Content-Length"), 10, 64)
|
||
|
||
return minio.ObjectInfo{
|
||
Bucket: bucket,
|
||
Name: object,
|
||
ModTime: modTime,
|
||
Size: size,
|
||
ETag: minio.ToS3ETag(header.Get("ETag")),
|
||
UserDefined: userDefined,
|
||
ContentType: header.Get("Content-Type"),
|
||
ContentEncoding: header.Get("Content-Encoding"),
|
||
}, nil
|
||
}
|
||
|
||
// GetObjectInfo reads object info and replies back ObjectInfo.
|
||
func (l *ossObjects) GetObjectInfo(bucket, object string) (objInfo minio.ObjectInfo, err error) {
|
||
return ossGetObjectInfo(l.Client, bucket, object)
|
||
}
|
||
|
||
// ossPutObject creates a new object with the incoming data.
|
||
func ossPutObject(client *oss.Client, bucket, object string, data *hash.Reader, metadata map[string]string) (objInfo minio.ObjectInfo, err error) {
|
||
bkt, err := client.Bucket(bucket)
|
||
if err != nil {
|
||
return objInfo, ossToObjectError(errors.Trace(err), bucket, object)
|
||
}
|
||
|
||
// Build OSS metadata
|
||
opts, err := appendS3MetaToOSSOptions(nil, metadata)
|
||
if err != nil {
|
||
return objInfo, ossToObjectError(err, bucket, object)
|
||
}
|
||
|
||
err = bkt.PutObject(object, data, opts...)
|
||
if err != nil {
|
||
return objInfo, ossToObjectError(errors.Trace(err), bucket, object)
|
||
}
|
||
|
||
return ossGetObjectInfo(client, bucket, object)
|
||
}
|
||
|
||
// PutObject creates a new object with the incoming data.
|
||
func (l *ossObjects) PutObject(bucket, object string, data *hash.Reader, metadata map[string]string) (objInfo minio.ObjectInfo, err error) {
|
||
return ossPutObject(l.Client, bucket, object, data, metadata)
|
||
}
|
||
|
||
// CopyObject copies an object from source bucket to a destination bucket.
|
||
func (l *ossObjects) CopyObject(srcBucket, srcObject, dstBucket, dstObject string, metadata map[string]string) (objInfo minio.ObjectInfo, err error) {
|
||
bkt, err := l.Client.Bucket(srcBucket)
|
||
if err != nil {
|
||
return objInfo, ossToObjectError(errors.Trace(err), srcBucket, srcObject)
|
||
}
|
||
|
||
opts := make([]oss.Option, 0, len(metadata)+1)
|
||
// Set this header such that following CopyObject() always sets the right metadata on the destination.
|
||
// metadata input is already a trickled down value from interpreting x-oss-metadata-directive at
|
||
// handler layer. So what we have right now is supposed to be applied on the destination object anyways.
|
||
// So preserve it by adding "REPLACE" directive to save all the metadata set by CopyObject API.
|
||
opts = append(opts, oss.MetadataDirective(oss.MetaReplace))
|
||
|
||
// Build OSS metadata
|
||
opts, err = appendS3MetaToOSSOptions(opts, metadata)
|
||
if err != nil {
|
||
return objInfo, ossToObjectError(err, srcBucket, srcObject)
|
||
}
|
||
|
||
if _, err = bkt.CopyObjectTo(dstBucket, dstObject, srcObject, opts...); err != nil {
|
||
return objInfo, ossToObjectError(errors.Trace(err), srcBucket, srcObject)
|
||
}
|
||
return l.GetObjectInfo(dstBucket, dstObject)
|
||
}
|
||
|
||
// DeleteObject deletes a blob in bucket.
|
||
func (l *ossObjects) DeleteObject(bucket, object string) error {
|
||
bkt, err := l.Client.Bucket(bucket)
|
||
if err != nil {
|
||
return ossToObjectError(errors.Trace(err), bucket, object)
|
||
}
|
||
|
||
err = bkt.DeleteObject(object)
|
||
if err != nil {
|
||
return ossToObjectError(errors.Trace(err), bucket, object)
|
||
}
|
||
return nil
|
||
}
|
||
|
||
// fromOSSClientListMultipartsInfo converts oss ListMultipartUploadResult to ListMultipartsInfo
|
||
func fromOSSClientListMultipartsInfo(lmur oss.ListMultipartUploadResult) minio.ListMultipartsInfo {
|
||
uploads := make([]minio.MultipartInfo, len(lmur.Uploads))
|
||
for i, um := range lmur.Uploads {
|
||
uploads[i] = minio.MultipartInfo{
|
||
Object: um.Key,
|
||
UploadID: um.UploadID,
|
||
Initiated: um.Initiated,
|
||
}
|
||
}
|
||
|
||
commonPrefixes := make([]string, len(lmur.CommonPrefixes))
|
||
copy(commonPrefixes, lmur.CommonPrefixes)
|
||
|
||
return minio.ListMultipartsInfo{
|
||
KeyMarker: lmur.KeyMarker,
|
||
UploadIDMarker: lmur.UploadIDMarker,
|
||
NextKeyMarker: lmur.NextKeyMarker,
|
||
NextUploadIDMarker: lmur.NextUploadIDMarker,
|
||
MaxUploads: lmur.MaxUploads,
|
||
IsTruncated: lmur.IsTruncated,
|
||
Uploads: uploads,
|
||
Prefix: lmur.Prefix,
|
||
Delimiter: lmur.Delimiter,
|
||
CommonPrefixes: commonPrefixes,
|
||
}
|
||
}
|
||
|
||
// ListMultipartUploads lists all multipart uploads.
|
||
func (l *ossObjects) ListMultipartUploads(bucket, prefix, keyMarker, uploadIDMarker, delimiter string, maxUploads int) (lmi minio.ListMultipartsInfo, err error) {
|
||
bkt, err := l.Client.Bucket(bucket)
|
||
if err != nil {
|
||
return lmi, ossToObjectError(errors.Trace(err), bucket)
|
||
}
|
||
|
||
lmur, err := bkt.ListMultipartUploads(oss.Prefix(prefix), oss.KeyMarker(keyMarker), oss.UploadIDMarker(uploadIDMarker),
|
||
oss.Delimiter(delimiter), oss.MaxUploads(maxUploads))
|
||
if err != nil {
|
||
return lmi, ossToObjectError(errors.Trace(err), bucket)
|
||
}
|
||
|
||
return fromOSSClientListMultipartsInfo(lmur), nil
|
||
}
|
||
|
||
// NewMultipartUpload upload object in multiple parts.
|
||
func (l *ossObjects) NewMultipartUpload(bucket, object string, metadata map[string]string) (uploadID string, err error) {
|
||
bkt, err := l.Client.Bucket(bucket)
|
||
if err != nil {
|
||
return uploadID, ossToObjectError(errors.Trace(err), bucket, object)
|
||
}
|
||
|
||
// Build OSS metadata
|
||
opts, err := appendS3MetaToOSSOptions(nil, metadata)
|
||
if err != nil {
|
||
return uploadID, ossToObjectError(err, bucket, object)
|
||
}
|
||
|
||
lmur, err := bkt.InitiateMultipartUpload(object, opts...)
|
||
if err != nil {
|
||
return uploadID, ossToObjectError(errors.Trace(err), bucket, object)
|
||
}
|
||
|
||
return lmur.UploadID, nil
|
||
}
|
||
|
||
// PutObjectPart puts a part of object in bucket.
|
||
func (l *ossObjects) PutObjectPart(bucket, object, uploadID string, partID int, data *hash.Reader) (pi minio.PartInfo, err error) {
|
||
bkt, err := l.Client.Bucket(bucket)
|
||
if err != nil {
|
||
return pi, ossToObjectError(errors.Trace(err), bucket, object)
|
||
}
|
||
|
||
imur := oss.InitiateMultipartUploadResult{
|
||
Bucket: bucket,
|
||
Key: object,
|
||
UploadID: uploadID,
|
||
}
|
||
size := data.Size()
|
||
up, err := bkt.UploadPart(imur, data, size, partID)
|
||
if err != nil {
|
||
return pi, ossToObjectError(errors.Trace(err), bucket, object)
|
||
}
|
||
|
||
return minio.PartInfo{
|
||
Size: size,
|
||
ETag: minio.ToS3ETag(up.ETag),
|
||
// NOTE(timonwong): LastModified is not supported
|
||
PartNumber: up.PartNumber,
|
||
}, nil
|
||
}
|
||
|
||
func ossBuildListObjectPartsParams(uploadID string, partNumberMarker, maxParts int) map[string]interface{} {
|
||
return map[string]interface{}{
|
||
"uploadId": uploadID,
|
||
"part-number-marker": strconv.Itoa(partNumberMarker),
|
||
"max-parts": strconv.Itoa(maxParts),
|
||
}
|
||
}
|
||
|
||
// fromOSSClientListPartsInfo converts OSS ListUploadedPartsResult to ListPartsInfo
|
||
func fromOSSClientListPartsInfo(lupr oss.ListUploadedPartsResult, partNumberMarker int) minio.ListPartsInfo {
|
||
parts := make([]minio.PartInfo, len(lupr.UploadedParts))
|
||
for i, up := range lupr.UploadedParts {
|
||
parts[i] = minio.PartInfo{
|
||
PartNumber: up.PartNumber,
|
||
LastModified: up.LastModified,
|
||
ETag: minio.ToS3ETag(up.ETag),
|
||
Size: int64(up.Size),
|
||
}
|
||
}
|
||
|
||
nextPartNumberMarker, _ := strconv.Atoi(lupr.NextPartNumberMarker)
|
||
return minio.ListPartsInfo{
|
||
Bucket: lupr.Bucket,
|
||
Object: lupr.Key,
|
||
UploadID: lupr.UploadID,
|
||
PartNumberMarker: partNumberMarker,
|
||
NextPartNumberMarker: nextPartNumberMarker,
|
||
MaxParts: lupr.MaxParts,
|
||
IsTruncated: lupr.IsTruncated,
|
||
Parts: parts,
|
||
}
|
||
}
|
||
|
||
func ossListObjectParts(client *oss.Client, bucket, object, uploadID string, partNumberMarker, maxParts int) (lupr oss.ListUploadedPartsResult, err error) {
|
||
params := ossBuildListObjectPartsParams(uploadID, partNumberMarker, maxParts)
|
||
resp, err := client.Conn.Do("GET", bucket, object, params, nil, nil, 0, nil)
|
||
if err != nil {
|
||
return lupr, err
|
||
}
|
||
|
||
defer func() {
|
||
// always drain output (response body)
|
||
io.CopyN(ioutil.Discard, resp.Body, 512)
|
||
resp.Body.Close()
|
||
}()
|
||
|
||
err = xml.NewDecoder(resp.Body).Decode(&lupr)
|
||
if err != nil {
|
||
return lupr, err
|
||
}
|
||
return lupr, nil
|
||
}
|
||
|
||
// CopyObjectPart creates a part in a multipart upload by copying
|
||
// existing object or a part of it.
|
||
func (l *ossObjects) CopyObjectPart(srcBucket, srcObject, destBucket, destObject, uploadID string,
|
||
partID int, startOffset, length int64, metadata map[string]string) (p minio.PartInfo, err error) {
|
||
|
||
bkt, err := l.Client.Bucket(destBucket)
|
||
if err != nil {
|
||
return p, ossToObjectError(errors.Trace(err), destBucket)
|
||
}
|
||
|
||
// Build OSS metadata
|
||
opts, err := appendS3MetaToOSSOptions(nil, metadata)
|
||
if err != nil {
|
||
return p, ossToObjectError(err, srcBucket, srcObject)
|
||
}
|
||
|
||
completePart, err := bkt.UploadPartCopy(oss.InitiateMultipartUploadResult{
|
||
Key: destObject,
|
||
UploadID: uploadID,
|
||
}, srcBucket, srcObject, startOffset, length, partID, opts...)
|
||
|
||
if err != nil {
|
||
return p, ossToObjectError(errors.Trace(err), srcBucket, srcObject)
|
||
}
|
||
|
||
p.PartNumber = completePart.PartNumber
|
||
p.ETag = minio.ToS3ETag(completePart.ETag)
|
||
return p, nil
|
||
}
|
||
|
||
// ListObjectParts returns all object parts for specified object in specified bucket
|
||
func (l *ossObjects) ListObjectParts(bucket, object, uploadID string, partNumberMarker, maxParts int) (lpi minio.ListPartsInfo, err error) {
|
||
lupr, err := ossListObjectParts(l.Client, bucket, object, uploadID, partNumberMarker, maxParts)
|
||
if err != nil {
|
||
return lpi, ossToObjectError(errors.Trace(err), bucket, object, uploadID)
|
||
}
|
||
|
||
return fromOSSClientListPartsInfo(lupr, partNumberMarker), nil
|
||
}
|
||
|
||
// AbortMultipartUpload aborts a ongoing multipart upload.
|
||
func (l *ossObjects) AbortMultipartUpload(bucket, object, uploadID string) error {
|
||
bkt, err := l.Client.Bucket(bucket)
|
||
if err != nil {
|
||
return ossToObjectError(errors.Trace(err), bucket, object)
|
||
}
|
||
|
||
err = bkt.AbortMultipartUpload(oss.InitiateMultipartUploadResult{
|
||
Bucket: bucket,
|
||
Key: object,
|
||
UploadID: uploadID,
|
||
})
|
||
if err != nil {
|
||
return ossToObjectError(errors.Trace(err), bucket, object)
|
||
}
|
||
return nil
|
||
}
|
||
|
||
// CompleteMultipartUpload completes ongoing multipart upload and finalizes object.
|
||
func (l *ossObjects) CompleteMultipartUpload(bucket, object, uploadID string, uploadedParts []minio.CompletePart) (oi minio.ObjectInfo, err error) {
|
||
client := l.Client
|
||
bkt, err := client.Bucket(bucket)
|
||
if err != nil {
|
||
return oi, ossToObjectError(errors.Trace(err), bucket, object)
|
||
}
|
||
|
||
// Error out if uploadedParts except last part sizing < 5MiB.
|
||
// NOTE(timonwong): Actually, OSS wont't throw EntityTooSmall error, doing this check just for mint :(
|
||
var partNumberMarker int
|
||
lupr := oss.ListUploadedPartsResult{IsTruncated: true}
|
||
for lupr.IsTruncated {
|
||
lupr, err = ossListObjectParts(client, bucket, object, uploadID, partNumberMarker, ossMaxParts)
|
||
if err != nil {
|
||
return oi, ossToObjectError(errors.Trace(err), bucket, object, uploadID)
|
||
}
|
||
|
||
uploadedParts := lupr.UploadedParts
|
||
if !lupr.IsTruncated {
|
||
if len(uploadedParts) < 1 {
|
||
uploadedParts = nil
|
||
} else {
|
||
uploadedParts = uploadedParts[:len(uploadedParts)-1]
|
||
}
|
||
}
|
||
|
||
for _, part := range uploadedParts {
|
||
if part.Size < ossS3MinPartSize {
|
||
return oi, errors.Trace(minio.PartTooSmall{
|
||
PartNumber: part.PartNumber,
|
||
PartSize: int64(part.Size),
|
||
PartETag: minio.ToS3ETag(part.ETag),
|
||
})
|
||
}
|
||
}
|
||
|
||
partNumberMarker, _ = strconv.Atoi(lupr.NextPartNumberMarker)
|
||
}
|
||
|
||
imur := oss.InitiateMultipartUploadResult{
|
||
Bucket: bucket,
|
||
Key: object,
|
||
UploadID: uploadID,
|
||
}
|
||
parts := make([]oss.UploadPart, len(uploadedParts))
|
||
for i, up := range uploadedParts {
|
||
parts[i] = oss.UploadPart{
|
||
PartNumber: up.PartNumber,
|
||
ETag: strings.TrimSuffix(up.ETag, "-1"), // Trim "-1" suffix in ETag as PutObjectPart().
|
||
}
|
||
}
|
||
|
||
_, err = bkt.CompleteMultipartUpload(imur, parts)
|
||
if err != nil {
|
||
return oi, ossToObjectError(errors.Trace(err), bucket, object)
|
||
}
|
||
|
||
return l.GetObjectInfo(bucket, object)
|
||
}
|
||
|
||
// SetBucketPolicies sets policy on bucket.
|
||
// OSS supports three types of bucket policies:
|
||
// oss.ACLPublicReadWrite: readwrite in minio terminology
|
||
// oss.ACLPublicRead: readonly in minio terminology
|
||
// oss.ACLPrivate: none in minio terminology
|
||
func (l *ossObjects) SetBucketPolicies(bucket string, policyInfo policy.BucketAccessPolicy) error {
|
||
bucketPolicies := policy.GetPolicies(policyInfo.Statements, bucket)
|
||
if len(bucketPolicies) != 1 {
|
||
return errors.Trace(minio.NotImplemented{})
|
||
}
|
||
|
||
prefix := bucket + "/*" // For all objects inside the bucket.
|
||
for policyPrefix, bucketPolicy := range bucketPolicies {
|
||
if policyPrefix != prefix {
|
||
return errors.Trace(minio.NotImplemented{})
|
||
}
|
||
|
||
var acl oss.ACLType
|
||
switch bucketPolicy {
|
||
case policy.BucketPolicyNone:
|
||
acl = oss.ACLPrivate
|
||
case policy.BucketPolicyReadOnly:
|
||
acl = oss.ACLPublicRead
|
||
case policy.BucketPolicyReadWrite:
|
||
acl = oss.ACLPublicReadWrite
|
||
default:
|
||
return errors.Trace(minio.NotImplemented{})
|
||
}
|
||
|
||
err := l.Client.SetBucketACL(bucket, acl)
|
||
if err != nil {
|
||
return ossToObjectError(errors.Trace(err), bucket)
|
||
}
|
||
}
|
||
|
||
return nil
|
||
}
|
||
|
||
// GetBucketPolicies will get policy on bucket.
|
||
func (l *ossObjects) GetBucketPolicies(bucket string) (policy.BucketAccessPolicy, error) {
|
||
result, err := l.Client.GetBucketACL(bucket)
|
||
if err != nil {
|
||
return policy.BucketAccessPolicy{}, ossToObjectError(errors.Trace(err))
|
||
}
|
||
|
||
policyInfo := policy.BucketAccessPolicy{Version: "2012-10-17"}
|
||
switch result.ACL {
|
||
case string(oss.ACLPrivate):
|
||
// By default, all buckets starts with a "private" policy.
|
||
return policy.BucketAccessPolicy{}, ossToObjectError(errors.Trace(minio.PolicyNotFound{}), bucket)
|
||
case string(oss.ACLPublicRead):
|
||
policyInfo.Statements = policy.SetPolicy(policyInfo.Statements, policy.BucketPolicyReadOnly, bucket, "")
|
||
case string(oss.ACLPublicReadWrite):
|
||
policyInfo.Statements = policy.SetPolicy(policyInfo.Statements, policy.BucketPolicyReadWrite, bucket, "")
|
||
default:
|
||
return policy.BucketAccessPolicy{}, errors.Trace(minio.NotImplemented{})
|
||
}
|
||
|
||
return policyInfo, nil
|
||
}
|
||
|
||
// DeleteBucketPolicies deletes all policies on bucket.
|
||
func (l *ossObjects) DeleteBucketPolicies(bucket string) error {
|
||
err := l.Client.SetBucketACL(bucket, oss.ACLPrivate)
|
||
if err != nil {
|
||
return ossToObjectError(errors.Trace(err), bucket)
|
||
}
|
||
return nil
|
||
}
|