mirror of
https://github.com/seaweedfs/seaweedfs.git
synced 2024-12-11 15:59:06 +08:00
203 lines
5.0 KiB
Go
203 lines
5.0 KiB
Go
package s3api
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import (
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"context"
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"encoding/xml"
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"fmt"
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"github.com/chrislusf/seaweedfs/weed/s3api/s3_constants"
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"math"
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"net/http"
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"time"
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xhttp "github.com/chrislusf/seaweedfs/weed/s3api/http"
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"github.com/chrislusf/seaweedfs/weed/s3api/s3err"
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"github.com/aws/aws-sdk-go/aws"
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"github.com/aws/aws-sdk-go/service/s3"
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"github.com/chrislusf/seaweedfs/weed/glog"
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"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
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)
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type ListAllMyBucketsResult struct {
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XMLName xml.Name `xml:"http://s3.amazonaws.com/doc/2006-03-01/ ListAllMyBucketsResult"`
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Owner *s3.Owner
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Buckets []*s3.Bucket `xml:"Buckets>Bucket"`
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}
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func (s3a *S3ApiServer) ListBucketsHandler(w http.ResponseWriter, r *http.Request) {
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var identity *Identity
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var s3Err s3err.ErrorCode
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if s3a.iam.isEnabled() {
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identity, s3Err = s3a.iam.authUser(r)
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if s3Err != s3err.ErrNone {
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writeErrorResponse(w, s3Err, r.URL)
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return
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}
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}
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var response ListAllMyBucketsResult
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entries, _, err := s3a.list(s3a.option.BucketsPath, "", "", false, math.MaxInt32)
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if err != nil {
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writeErrorResponse(w, s3err.ErrInternalError, r.URL)
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return
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}
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identityId := r.Header.Get(xhttp.AmzIdentityId)
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var buckets []*s3.Bucket
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for _, entry := range entries {
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if entry.IsDirectory {
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if identity != nil && !identity.canDo(s3_constants.ACTION_LIST, entry.Name) {
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continue
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}
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buckets = append(buckets, &s3.Bucket{
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Name: aws.String(entry.Name),
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CreationDate: aws.Time(time.Unix(entry.Attributes.Crtime, 0).UTC()),
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})
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}
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}
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response = ListAllMyBucketsResult{
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Owner: &s3.Owner{
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ID: aws.String(identityId),
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DisplayName: aws.String(identityId),
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},
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Buckets: buckets,
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}
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writeSuccessResponseXML(w, encodeResponse(response))
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}
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func (s3a *S3ApiServer) PutBucketHandler(w http.ResponseWriter, r *http.Request) {
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bucket, _ := getBucketAndObject(r)
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// avoid duplicated buckets
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errCode := s3err.ErrNone
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if err := s3a.WithFilerClient(func(client filer_pb.SeaweedFilerClient) error {
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if resp, err := client.CollectionList(context.Background(), &filer_pb.CollectionListRequest{
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IncludeEcVolumes: true,
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IncludeNormalVolumes: true,
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}); err != nil {
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glog.Errorf("list collection: %v", err)
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return fmt.Errorf("list collections: %v", err)
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} else {
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for _, c := range resp.Collections {
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if bucket == c.Name {
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errCode = s3err.ErrBucketAlreadyExists
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break
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}
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}
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}
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return nil
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}); err != nil {
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writeErrorResponse(w, s3err.ErrInternalError, r.URL)
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return
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}
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if exist, err := s3a.exists(s3a.option.BucketsPath, bucket, true); err == nil && exist {
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errCode = s3err.ErrBucketAlreadyExists
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}
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if errCode != s3err.ErrNone {
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writeErrorResponse(w, errCode, r.URL)
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return
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}
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fn := func(entry *filer_pb.Entry) {
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if identityId := r.Header.Get(xhttp.AmzIdentityId); identityId != "" {
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if entry.Extended == nil {
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entry.Extended = make(map[string][]byte)
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}
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entry.Extended[xhttp.AmzIdentityId] = []byte(identityId)
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}
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}
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// create the folder for bucket, but lazily create actual collection
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if err := s3a.mkdir(s3a.option.BucketsPath, bucket, fn); err != nil {
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glog.Errorf("PutBucketHandler mkdir: %v", err)
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writeErrorResponse(w, s3err.ErrInternalError, r.URL)
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return
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}
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writeSuccessResponseEmpty(w)
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}
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func (s3a *S3ApiServer) DeleteBucketHandler(w http.ResponseWriter, r *http.Request) {
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bucket, _ := getBucketAndObject(r)
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if err := s3a.checkBucket(r, bucket); err != s3err.ErrNone {
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writeErrorResponse(w, err, r.URL)
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return
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}
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err := s3a.WithFilerClient(func(client filer_pb.SeaweedFilerClient) error {
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// delete collection
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deleteCollectionRequest := &filer_pb.DeleteCollectionRequest{
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Collection: bucket,
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}
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glog.V(1).Infof("delete collection: %v", deleteCollectionRequest)
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if _, err := client.DeleteCollection(context.Background(), deleteCollectionRequest); err != nil {
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return fmt.Errorf("delete collection %s: %v", bucket, err)
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}
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return nil
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})
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err = s3a.rm(s3a.option.BucketsPath, bucket, false, true)
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if err != nil {
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writeErrorResponse(w, s3err.ErrInternalError, r.URL)
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return
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}
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writeResponse(w, http.StatusNoContent, nil, mimeNone)
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}
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func (s3a *S3ApiServer) HeadBucketHandler(w http.ResponseWriter, r *http.Request) {
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bucket, _ := getBucketAndObject(r)
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if err := s3a.checkBucket(r, bucket); err != s3err.ErrNone {
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writeErrorResponse(w, err, r.URL)
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return
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}
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writeSuccessResponseEmpty(w)
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}
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func (s3a *S3ApiServer) checkBucket(r *http.Request, bucket string) s3err.ErrorCode {
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entry, err := s3a.getEntry(s3a.option.BucketsPath, bucket)
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if entry == nil || err == filer_pb.ErrNotFound {
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return s3err.ErrNoSuchBucket
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}
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if !s3a.hasAccess(r, entry) {
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return s3err.ErrAccessDenied
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}
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return s3err.ErrNone
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}
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func (s3a *S3ApiServer) hasAccess(r *http.Request, entry *filer_pb.Entry) bool {
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isAdmin := r.Header.Get(xhttp.AmzIsAdmin) != ""
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if isAdmin {
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return true
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}
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if entry.Extended == nil {
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return true
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}
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identityId := r.Header.Get(xhttp.AmzIdentityId)
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if id, ok := entry.Extended[xhttp.AmzIdentityId]; ok {
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if identityId != string(id) {
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return false
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}
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}
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return true
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}
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