Files
cloudpods/pkg/s3gateway/handlers/object.go
2020-03-03 14:36:11 +08:00

300 lines
9.8 KiB
Go

// Copyright 2019 Yunion
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package handlers
import (
"context"
"io"
"net/http"
"net/url"
"strconv"
"strings"
"yunion.io/x/log"
"yunion.io/x/pkg/errors"
"yunion.io/x/pkg/util/timeutils"
"yunion.io/x/s3cli"
"yunion.io/x/onecloud/pkg/appsrv"
"yunion.io/x/onecloud/pkg/cloudprovider"
"yunion.io/x/onecloud/pkg/httperrors"
"yunion.io/x/onecloud/pkg/mcclient"
"yunion.io/x/onecloud/pkg/s3gateway/models"
)
func headObject(ctx context.Context, userCred mcclient.TokenCredential, bucketName string, key string) (http.Header, error) {
bucket, err := models.BucketManager.GetByName(ctx, userCred, bucketName)
if err != nil {
return nil, errors.Wrap(err, "models.BucketManager.GetByName")
}
iBucket, err := bucket.GetIBucket(ctx, userCred)
if err != nil {
return nil, errors.Wrap(err, "bucket.GetIBucket")
}
obj, err := cloudprovider.GetIObject(iBucket, key)
if err != nil {
return nil, errors.Wrap(err, "cloudprovider.GetIObject")
}
hdr := cloudprovider.MetaToHttpHeader(cloudprovider.META_HEADER_PREFIX, obj.GetMeta())
hdr.Set(http.CanonicalHeaderKey("x-amz-acl"), string(obj.GetAcl()))
hdr.Set(http.CanonicalHeaderKey("x-amz-storage-class"), obj.GetStorageClass())
hdr.Set(http.CanonicalHeaderKey("content-length"), strconv.FormatInt(obj.GetSizeBytes(), 10))
hdr.Set(http.CanonicalHeaderKey("etag"), obj.GetETag())
hdr.Set(http.CanonicalHeaderKey("last-modified"), obj.GetLastModified().Format(timeutils.RFC2882Format))
return hdr, nil
}
func uploadObject(ctx context.Context, userCred mcclient.TokenCredential, bucketName string, key string, header http.Header, body io.Reader, uploadId string, partNumber int) (http.Header, error) {
bucket, err := models.BucketManager.GetByName(ctx, userCred, bucketName)
if err != nil {
return nil, errors.Wrap(err, "models.BucketManager.GetByName")
}
err = bucket.IsOutOfLimit()
if err != nil {
return nil, errors.Wrap(err, "IsOutOfLimit")
}
iBucket, err := bucket.GetIBucket(ctx, userCred)
if err != nil {
return nil, errors.Wrap(err, "bucket.GetIBucket")
}
contLenStr := header.Get(http.CanonicalHeaderKey("Content-Length"))
contLen, err := strconv.ParseInt(contLenStr, 10, 64)
if err != nil {
return nil, errors.Wrap(httperrors.ErrBadRequest, "missing content length")
}
respHdr := http.Header{}
if len(uploadId) > 0 {
etag, err := iBucket.UploadPart(ctx, key, uploadId, partNumber, body, contLen, 0, 0)
if err != nil {
return nil, errors.Wrap(err, "iBucket.UploadPart")
}
respHdr.Set("ETag", etag)
} else {
meta := cloudprovider.FetchMetaFromHttpHeader(cloudprovider.META_HEADER_PREFIX, header)
aclStr := header.Get(http.CanonicalHeaderKey("x-amz-acl"))
storageClassStr := header.Get(http.CanonicalHeaderKey("x-amz-storage-class"))
err = iBucket.PutObject(ctx, key, body, contLen, cloudprovider.TBucketACLType(aclStr), storageClassStr, meta)
if err != nil {
return nil, errors.Wrap(err, "iBucket.PutObject")
}
obj, err := cloudprovider.GetIObject(iBucket, key)
if err != nil {
return nil, errors.Wrap(err, "cloudprovider.GetIObject")
}
respHdr.Set("ETag", obj.GetETag())
}
bucket.Invalidate()
return respHdr, nil
}
const (
MIN_PART_BYTES = 1000 * 1000 * 10 // 100 MB
MAX_PART_COUNT = 10000
)
func copyObject(ctx context.Context, userCred mcclient.TokenCredential, bucketName string, key string, copySource string, hdr http.Header, uploadId string, partNumber int) (interface{}, http.Header, error) {
log.Debugf("CopyObject %s => %s/%s %s %d %s", copySource, bucketName, key, uploadId, partNumber, hdr)
srcSegs := appsrv.SplitPath(copySource)
srcBucketName := srcSegs[0]
srcKey := strings.Join(srcSegs[1:], "/")
if strings.HasSuffix(copySource, "/") {
srcKey += "/"
}
var err error
srcKey, err = url.PathUnescape(srcKey)
if err != nil {
return nil, nil, errors.Wrap(err, "url.PathUnescape")
}
srcBucket, err := models.BucketManager.GetByName(ctx, userCred, srcBucketName)
if err != nil {
return nil, nil, errors.Wrap(err, "source bucket GetByName")
}
iSrcBucket, err := srcBucket.GetIBucket(ctx, userCred)
if err != nil {
return nil, nil, errors.Wrap(err, "srcBucket.GetIBucket")
}
srcObj, err := cloudprovider.GetIObject(iSrcBucket, srcKey)
if err != nil {
return nil, nil, errors.Wrap(err, "src cloudprovider.GetIObject")
}
dstBucket, err := models.BucketManager.GetByName(ctx, userCred, bucketName)
if err != nil {
return nil, nil, errors.Wrap(err, "dest bucket GetByName")
}
err = dstBucket.IsOutOfLimit()
if err != nil {
return nil, nil, errors.Wrap(err, "IsOutOfLimit")
}
iDstBucket, err := dstBucket.GetIBucket(ctx, userCred)
if err != nil {
return nil, nil, errors.Wrap(err, "dstBucket.GetIBucket")
}
sizeBytes := srcObj.GetSizeBytes()
rangeStr := hdr.Get(http.CanonicalHeaderKey("x-amz-copy-source-range"))
rangeOpt, err := getRangeOpt(rangeStr, sizeBytes)
if err != nil {
return nil, nil, errors.Wrap(err, rangeStr)
}
if rangeOpt != nil {
if len(uploadId) == 0 {
return nil, nil, errors.Wrap(httperrors.ErrBadRequest, "range copy must be a multipart upload")
}
// upload directory
var etag string
if dstBucket.ManagerId == srcBucket.ManagerId && dstBucket.RegionExternalId == srcBucket.RegionExternalId {
etag, err = iDstBucket.CopyPart(ctx, key, uploadId, partNumber, iSrcBucket.GetName(), srcKey, rangeOpt.Start, rangeOpt.SizeBytes())
} else {
etag, err = cloudprovider.CopyPart(ctx, iDstBucket, key, uploadId, partNumber, iSrcBucket, srcKey, rangeOpt)
}
if err != nil {
return nil, nil, errors.Wrap(err, "copyPart fail")
}
result := s3cli.CopyPartResult{
ETag: etag,
LastModified: srcObj.GetLastModified(),
}
return &result, nil, nil
} else {
meta := cloudprovider.FetchMetaFromHttpHeader(cloudprovider.META_HEADER_PREFIX, hdr)
if dstBucket.ManagerId == srcBucket.ManagerId && dstBucket.RegionExternalId == srcBucket.RegionExternalId {
err = iDstBucket.CopyObject(ctx, key, iSrcBucket.GetName(), srcKey, srcObj.GetAcl(), srcObj.GetStorageClass(), meta)
if err != nil {
return nil, nil, errors.Wrap(err, "iDstBucket.CopyObject")
}
} else {
err = cloudprovider.CopyObject(ctx, 0, iDstBucket, key, iSrcBucket, srcKey, meta, false)
if err != nil {
return nil, nil, errors.Wrap(err, "cloudprovider.CopyObject")
}
}
dstBucket.Invalidate()
dstObj, err := cloudprovider.GetIObject(iDstBucket, key)
if err != nil {
return nil, nil, errors.Wrap(err, "cloudprovider.GetIObject")
}
result := s3cli.CopyObjectResult{
ETag: dstObj.GetETag(),
LastModified: dstObj.GetLastModified(),
}
return &result, nil, nil
}
}
func deleteObjectTags(ctx context.Context, userCred mcclient.TokenCredential, bucket string, key string) (*s3cli.Tagging, error) {
return nil, nil
}
func removeObject(ctx context.Context, userCred mcclient.TokenCredential, bucketName string, key string) error {
bucket, err := models.BucketManager.GetByName(ctx, userCred, bucketName)
if err != nil {
return errors.Wrap(err, "models.BucketManager.GetByName")
}
iBucket, err := bucket.GetIBucket(ctx, userCred)
if err != nil {
return errors.Wrap(err, "bucket.GetIBucket")
}
err = iBucket.DeleteObject(ctx, key)
if err != nil {
return errors.Wrap(err, "DeleteObject")
}
bucket.Invalidate()
return nil
}
func objectAcl(ctx context.Context, userCred mcclient.TokenCredential, bucketName string, objKey string) (*s3cli.AccessControlPolicy, error) {
bucket, err := models.BucketManager.GetByName(ctx, userCred, bucketName)
if err != nil {
return nil, errors.Wrap(err, "models.BucketManager.GetByName")
}
iBucket, err := bucket.GetIBucket(ctx, userCred)
if err != nil {
return nil, errors.Wrap(err, "bucket.GetIBucket")
}
obj, err := cloudprovider.GetIObject(iBucket, objKey)
if err != nil {
return nil, errors.Wrap(err, "cloudprovider.GetIObject")
}
result := str2Acl(userCred, obj.GetAcl())
return result, nil
}
func str2Acl(userCred mcclient.TokenCredential, aclStr cloudprovider.TBucketACLType) *s3cli.AccessControlPolicy {
result := s3cli.AccessControlPolicy{}
result.Owner.DisplayName = userCred.GetProjectName()
result.Owner.ID = userCred.GetProjectId()
fullControl := s3cli.Grant{}
fullControl.Permission = s3cli.PERMISSION_FULL_CONTROL
fullControl.Grantee.Type = s3cli.GRANTEE_TYPE_USER
fullControl.Grantee.ID = userCred.GetProjectId()
fullControl.Grantee.DisplayName = userCred.GetProjectName()
publicRead := s3cli.Grant{}
publicRead.Permission = s3cli.PERMISSION_READ
publicRead.Grantee.Type = s3cli.GRANTEE_TYPE_GROUP
publicRead.Grantee.URI = s3cli.GRANTEE_GROUP_URI_ALL_USERS
publicWrite := s3cli.Grant{}
publicWrite.Permission = s3cli.PERMISSION_WRITE
publicWrite.Grantee.Type = s3cli.GRANTEE_TYPE_GROUP
publicWrite.Grantee.URI = s3cli.GRANTEE_GROUP_URI_ALL_USERS
authRead := s3cli.Grant{}
authRead.Permission = s3cli.PERMISSION_READ
authRead.Grantee.Type = s3cli.GRANTEE_TYPE_GROUP
authRead.Grantee.URI = s3cli.GRANTEE_GROUP_URI_AUTH_USERS
switch aclStr {
case cloudprovider.ACLPrivate:
result.AccessControlList.Grant = []s3cli.Grant{
fullControl,
}
case cloudprovider.ACLAuthRead:
result.AccessControlList.Grant = []s3cli.Grant{
fullControl,
authRead,
}
case cloudprovider.ACLPublicRead:
result.AccessControlList.Grant = []s3cli.Grant{
fullControl,
publicRead,
}
case cloudprovider.ACLPublicReadWrite:
result.AccessControlList.Grant = []s3cli.Grant{
fullControl,
publicRead,
publicWrite,
}
}
return &result
}