2018-07-21 17:39:02 +00:00
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package s3api
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import (
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2018-09-12 08:00:57 +00:00
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"crypto/md5"
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2018-07-22 00:39:10 +00:00
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"encoding/json"
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2020-02-25 22:38:36 +00:00
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"encoding/xml"
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2018-07-21 17:39:02 +00:00
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"fmt"
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2018-07-22 08:15:11 +00:00
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"io"
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2018-07-21 17:39:02 +00:00
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"io/ioutil"
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2018-07-22 00:39:10 +00:00
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"net/http"
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2021-01-28 22:28:40 +00:00
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"sort"
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2018-07-23 08:15:59 +00:00
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"strings"
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2018-09-12 07:46:12 +00:00
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2020-10-20 17:25:16 +00:00
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"github.com/chrislusf/seaweedfs/weed/s3api/s3err"
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2020-01-31 08:11:08 +00:00
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"github.com/gorilla/mux"
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2018-09-12 07:46:12 +00:00
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"github.com/chrislusf/seaweedfs/weed/glog"
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2020-03-20 21:17:31 +00:00
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"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
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2020-06-11 12:00:47 +00:00
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weed_server "github.com/chrislusf/seaweedfs/weed/server"
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2020-02-14 17:46:36 +00:00
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"github.com/chrislusf/seaweedfs/weed/util"
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2018-07-21 17:39:02 +00:00
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)
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var (
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client *http.Client
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)
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func init() {
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client = &http.Client{Transport: &http.Transport{
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MaxIdleConnsPerHost: 1024,
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}}
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}
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func (s3a *S3ApiServer) PutObjectHandler(w http.ResponseWriter, r *http.Request) {
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// http://docs.aws.amazon.com/AmazonS3/latest/dev/UploadingObjects.html
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2020-07-26 19:58:58 +00:00
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bucket, object := getBucketAndObject(r)
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2018-07-21 17:39:02 +00:00
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_, err := validateContentMd5(r.Header)
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if err != nil {
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2020-09-19 21:09:58 +00:00
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writeErrorResponse(w, s3err.ErrInvalidDigest, r.URL)
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2018-07-21 17:39:02 +00:00
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return
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}
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2018-09-02 21:20:47 +00:00
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dataReader := r.Body
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2020-08-08 16:11:40 +00:00
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if s3a.iam.isEnabled() {
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rAuthType := getRequestAuthType(r)
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2020-09-19 21:09:58 +00:00
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var s3ErrCode s3err.ErrorCode
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2020-08-08 16:11:40 +00:00
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switch rAuthType {
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case authTypeStreamingSigned:
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dataReader, s3ErrCode = s3a.iam.newSignV4ChunkedReader(r)
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case authTypeSignedV2, authTypePresignedV2:
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_, s3ErrCode = s3a.iam.isReqAuthenticatedV2(r)
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case authTypePresigned, authTypeSigned:
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_, s3ErrCode = s3a.iam.reqSignatureV4Verify(r)
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}
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2020-09-19 21:09:58 +00:00
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if s3ErrCode != s3err.ErrNone {
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2020-08-08 16:11:40 +00:00
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writeErrorResponse(w, s3ErrCode, r.URL)
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return
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}
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2018-09-02 21:20:47 +00:00
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}
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2020-02-14 17:09:15 +00:00
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defer dataReader.Close()
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2018-09-02 21:20:47 +00:00
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2020-07-27 16:58:42 +00:00
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if strings.HasSuffix(object, "/") {
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if err := s3a.mkdir(s3a.option.BucketsPath, bucket+object, nil); err != nil {
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2020-09-19 21:09:58 +00:00
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writeErrorResponse(w, s3err.ErrInternalError, r.URL)
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2020-07-27 16:58:42 +00:00
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return
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}
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} else {
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uploadUrl := fmt.Sprintf("http://%s%s/%s%s", s3a.option.Filer, s3a.option.BucketsPath, bucket, object)
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etag, errCode := s3a.putToFiler(r, uploadUrl, dataReader)
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2020-09-19 21:09:58 +00:00
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if errCode != s3err.ErrNone {
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2020-07-27 16:58:42 +00:00
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writeErrorResponse(w, errCode, r.URL)
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return
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}
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setEtag(w, etag)
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2018-07-21 17:39:02 +00:00
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}
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writeSuccessResponseEmpty(w)
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}
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2018-07-22 01:49:47 +00:00
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func (s3a *S3ApiServer) GetObjectHandler(w http.ResponseWriter, r *http.Request) {
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2020-07-26 19:58:58 +00:00
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bucket, object := getBucketAndObject(r)
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2018-09-20 05:01:41 +00:00
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2018-07-23 08:15:59 +00:00
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if strings.HasSuffix(r.URL.Path, "/") {
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2020-09-19 21:09:58 +00:00
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writeErrorResponse(w, s3err.ErrNotImplemented, r.URL)
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2018-07-23 08:15:59 +00:00
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return
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}
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2018-09-20 05:01:41 +00:00
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destUrl := fmt.Sprintf("http://%s%s/%s%s",
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2018-11-09 05:41:02 +00:00
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s3a.option.Filer, s3a.option.BucketsPath, bucket, object)
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2018-07-22 01:49:47 +00:00
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2019-01-02 10:38:32 +00:00
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s3a.proxyToFiler(w, r, destUrl, passThroughResponse)
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2018-07-22 01:49:47 +00:00
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}
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func (s3a *S3ApiServer) HeadObjectHandler(w http.ResponseWriter, r *http.Request) {
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2020-07-26 19:58:58 +00:00
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bucket, object := getBucketAndObject(r)
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2018-09-20 05:01:41 +00:00
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destUrl := fmt.Sprintf("http://%s%s/%s%s",
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2018-11-09 05:41:02 +00:00
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s3a.option.Filer, s3a.option.BucketsPath, bucket, object)
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2018-07-22 01:49:47 +00:00
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2019-01-02 10:38:32 +00:00
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s3a.proxyToFiler(w, r, destUrl, passThroughResponse)
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2018-07-22 01:49:47 +00:00
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}
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func (s3a *S3ApiServer) DeleteObjectHandler(w http.ResponseWriter, r *http.Request) {
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2020-07-26 19:58:58 +00:00
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bucket, object := getBucketAndObject(r)
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2018-09-20 05:01:41 +00:00
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2020-06-22 17:01:00 +00:00
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destUrl := fmt.Sprintf("http://%s%s/%s%s?recursive=true",
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2018-11-09 05:41:02 +00:00
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s3a.option.Filer, s3a.option.BucketsPath, bucket, object)
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2018-07-22 01:49:47 +00:00
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2020-06-11 12:00:47 +00:00
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s3a.proxyToFiler(w, r, destUrl, func(proxyResponse *http.Response, w http.ResponseWriter) {
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for k, v := range proxyResponse.Header {
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2018-07-22 02:12:44 +00:00
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w.Header()[k] = v
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}
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2020-06-11 16:00:34 +00:00
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w.WriteHeader(http.StatusNoContent)
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2018-07-22 02:12:44 +00:00
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})
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2018-07-22 01:49:47 +00:00
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}
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2020-07-26 19:58:58 +00:00
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// / ObjectIdentifier carries key name for the object to delete.
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2020-02-25 22:38:36 +00:00
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type ObjectIdentifier struct {
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ObjectName string `xml:"Key"`
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}
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// DeleteObjectsRequest - xml carrying the object key names which needs to be deleted.
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type DeleteObjectsRequest struct {
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// Element to enable quiet mode for the request
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Quiet bool
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// List of objects to be deleted
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Objects []ObjectIdentifier `xml:"Object"`
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}
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// DeleteError structure.
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type DeleteError struct {
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Code string
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Message string
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Key string
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}
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// DeleteObjectsResponse container for multiple object deletes.
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type DeleteObjectsResponse struct {
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XMLName xml.Name `xml:"http://s3.amazonaws.com/doc/2006-03-01/ DeleteResult" json:"-"`
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// Collection of all deleted objects
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DeletedObjects []ObjectIdentifier `xml:"Deleted,omitempty"`
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// Collection of errors deleting certain objects.
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Errors []DeleteError `xml:"Error,omitempty"`
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}
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2018-09-04 07:42:44 +00:00
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// DeleteMultipleObjectsHandler - Delete multiple objects
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func (s3a *S3ApiServer) DeleteMultipleObjectsHandler(w http.ResponseWriter, r *http.Request) {
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2020-02-25 22:38:36 +00:00
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2020-07-26 19:58:58 +00:00
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bucket, _ := getBucketAndObject(r)
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2020-02-25 22:38:36 +00:00
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deleteXMLBytes, err := ioutil.ReadAll(r.Body)
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if err != nil {
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2020-09-19 21:09:58 +00:00
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writeErrorResponse(w, s3err.ErrInternalError, r.URL)
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2020-02-25 22:38:36 +00:00
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return
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}
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deleteObjects := &DeleteObjectsRequest{}
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if err := xml.Unmarshal(deleteXMLBytes, deleteObjects); err != nil {
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2020-09-19 21:09:58 +00:00
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writeErrorResponse(w, s3err.ErrMalformedXML, r.URL)
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2020-02-25 22:38:36 +00:00
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return
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}
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var deletedObjects []ObjectIdentifier
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var deleteErrors []DeleteError
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2021-01-28 21:20:06 +00:00
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directoriesWithDeletion := make(map[string]int)
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2020-03-23 06:52:55 +00:00
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s3a.WithFilerClient(func(client filer_pb.SeaweedFilerClient) error {
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2020-03-20 21:17:31 +00:00
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2021-01-28 21:20:06 +00:00
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// delete file entries
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2020-03-20 21:17:31 +00:00
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for _, object := range deleteObjects.Objects {
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2020-09-23 05:15:06 +00:00
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2020-03-20 21:17:31 +00:00
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lastSeparator := strings.LastIndex(object.ObjectName, "/")
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2021-01-28 21:20:06 +00:00
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parentDirectoryPath, entryName, isDeleteData, isRecursive := "/", object.ObjectName, true, false
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2020-03-20 21:17:31 +00:00
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if lastSeparator > 0 && lastSeparator+1 < len(object.ObjectName) {
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entryName = object.ObjectName[lastSeparator+1:]
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parentDirectoryPath = "/" + object.ObjectName[:lastSeparator]
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}
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parentDirectoryPath = fmt.Sprintf("%s/%s%s", s3a.option.BucketsPath, bucket, parentDirectoryPath)
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err := doDeleteEntry(client, parentDirectoryPath, entryName, isDeleteData, isRecursive)
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if err == nil {
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2021-01-28 21:20:06 +00:00
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directoriesWithDeletion[parentDirectoryPath]++
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2020-03-20 21:17:31 +00:00
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deletedObjects = append(deletedObjects, object)
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} else {
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2021-01-28 21:20:06 +00:00
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delete(directoriesWithDeletion, parentDirectoryPath)
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2020-03-20 21:17:31 +00:00
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deleteErrors = append(deleteErrors, DeleteError{
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Code: "",
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Message: err.Error(),
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Key: object.ObjectName,
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})
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}
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2020-02-25 22:38:36 +00:00
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}
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2021-01-28 21:20:06 +00:00
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2021-01-28 22:28:40 +00:00
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2021-01-28 21:20:06 +00:00
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// purge empty folders, only checking folders with deletions
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2021-01-28 22:28:40 +00:00
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var allDirs []string
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for dir, _ := range directoriesWithDeletion {
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allDirs = append(allDirs, dir)
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}
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sort.Slice(allDirs, func(i, j int) bool {
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return len(allDirs[i]) > len(allDirs[j])
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})
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for _, dir := range allDirs {
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2021-01-28 21:20:06 +00:00
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parentDir, dirName := util.FullPath(dir).DirAndName()
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if err := doDeleteEntry(client, parentDir, dirName, false, false); err != nil {
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2021-01-28 22:28:40 +00:00
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glog.V(4).Infof("directory %s has %d deletion but still not empty: %v", dir, directoriesWithDeletion[dir], err)
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2021-01-28 21:20:06 +00:00
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}
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}
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2020-03-20 21:17:31 +00:00
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return nil
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2020-02-25 22:38:36 +00:00
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})
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deleteResp := DeleteObjectsResponse{}
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if !deleteObjects.Quiet {
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deleteResp.DeletedObjects = deletedObjects
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}
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deleteResp.Errors = deleteErrors
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writeSuccessResponseXML(w, encodeResponse(deleteResp))
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2018-09-04 07:42:44 +00:00
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}
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2020-09-25 01:09:52 +00:00
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var passThroughHeaders = []string{
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"response-cache-control",
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"response-content-disposition",
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"response-content-encoding",
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"response-content-language",
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"response-content-type",
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"response-expires",
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}
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2020-06-11 17:53:25 +00:00
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func (s3a *S3ApiServer) proxyToFiler(w http.ResponseWriter, r *http.Request, destUrl string, responseFn func(proxyResponse *http.Response, w http.ResponseWriter)) {
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2018-07-22 01:49:47 +00:00
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glog.V(2).Infof("s3 proxying %s to %s", r.Method, destUrl)
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proxyReq, err := http.NewRequest(r.Method, destUrl, r.Body)
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if err != nil {
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glog.Errorf("NewRequest %s: %v", destUrl, err)
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2020-09-19 21:09:58 +00:00
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writeErrorResponse(w, s3err.ErrInternalError, r.URL)
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2018-07-22 01:49:47 +00:00
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return
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}
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proxyReq.Header.Set("Host", s3a.option.Filer)
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proxyReq.Header.Set("X-Forwarded-For", r.RemoteAddr)
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for header, values := range r.Header {
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2020-09-25 01:09:52 +00:00
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// handle s3 related headers
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passed := false
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for _, h := range passThroughHeaders {
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if strings.ToLower(header) == h && len(values) > 0 {
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proxyReq.Header.Add(header[len("response-"):], values[0])
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passed = true
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break
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}
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}
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if passed {
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continue
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}
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// handle other headers
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2018-07-22 01:49:47 +00:00
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for _, value := range values {
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proxyReq.Header.Add(header, value)
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}
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}
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resp, postErr := client.Do(proxyReq)
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if postErr != nil {
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glog.Errorf("post to filer: %v", postErr)
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2020-09-19 21:09:58 +00:00
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writeErrorResponse(w, s3err.ErrInternalError, r.URL)
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2018-07-22 01:49:47 +00:00
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return
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}
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2020-02-14 17:46:36 +00:00
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defer util.CloseResponse(resp)
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2018-07-22 01:49:47 +00:00
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2020-11-17 19:23:13 +00:00
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if (resp.ContentLength == -1 || resp.StatusCode == 404) && !strings.HasSuffix(destUrl, "/") {
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writeErrorResponse(w, s3err.ErrNoSuchKey, r.URL)
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return
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}
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2018-07-22 02:12:44 +00:00
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responseFn(resp, w)
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2020-02-14 17:46:36 +00:00
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2018-07-22 02:12:44 +00:00
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}
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2020-09-25 01:09:52 +00:00
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|
|
|
2020-06-11 17:53:25 +00:00
|
|
|
func passThroughResponse(proxyResponse *http.Response, w http.ResponseWriter) {
|
|
|
|
for k, v := range proxyResponse.Header {
|
2018-07-22 01:49:47 +00:00
|
|
|
w.Header()[k] = v
|
|
|
|
}
|
2020-06-11 17:53:25 +00:00
|
|
|
w.WriteHeader(proxyResponse.StatusCode)
|
|
|
|
io.Copy(w, proxyResponse.Body)
|
2018-07-22 01:49:47 +00:00
|
|
|
}
|
2018-09-04 07:42:44 +00:00
|
|
|
|
2020-09-19 21:09:58 +00:00
|
|
|
func (s3a *S3ApiServer) putToFiler(r *http.Request, uploadUrl string, dataReader io.Reader) (etag string, code s3err.ErrorCode) {
|
2018-09-04 07:42:44 +00:00
|
|
|
|
2018-09-12 07:46:12 +00:00
|
|
|
hash := md5.New()
|
2020-02-25 06:28:45 +00:00
|
|
|
var body = io.TeeReader(dataReader, hash)
|
2018-09-12 07:46:12 +00:00
|
|
|
|
|
|
|
proxyReq, err := http.NewRequest("PUT", uploadUrl, body)
|
2018-09-04 07:42:44 +00:00
|
|
|
|
|
|
|
if err != nil {
|
|
|
|
glog.Errorf("NewRequest %s: %v", uploadUrl, err)
|
2020-09-19 21:09:58 +00:00
|
|
|
return "", s3err.ErrInternalError
|
2018-09-04 07:42:44 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
proxyReq.Header.Set("Host", s3a.option.Filer)
|
|
|
|
proxyReq.Header.Set("X-Forwarded-For", r.RemoteAddr)
|
|
|
|
|
|
|
|
for header, values := range r.Header {
|
|
|
|
for _, value := range values {
|
|
|
|
proxyReq.Header.Add(header, value)
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
resp, postErr := client.Do(proxyReq)
|
|
|
|
|
|
|
|
if postErr != nil {
|
|
|
|
glog.Errorf("post to filer: %v", postErr)
|
2020-09-19 21:09:58 +00:00
|
|
|
return "", s3err.ErrInternalError
|
2018-09-04 07:42:44 +00:00
|
|
|
}
|
|
|
|
defer resp.Body.Close()
|
|
|
|
|
2018-09-12 07:46:12 +00:00
|
|
|
etag = fmt.Sprintf("%x", hash.Sum(nil))
|
2018-09-04 07:42:44 +00:00
|
|
|
|
|
|
|
resp_body, ra_err := ioutil.ReadAll(resp.Body)
|
|
|
|
if ra_err != nil {
|
2020-11-11 10:01:24 +00:00
|
|
|
glog.Errorf("upload to filer response read %d: %v", resp.StatusCode, ra_err)
|
2020-09-19 21:09:58 +00:00
|
|
|
return etag, s3err.ErrInternalError
|
2018-09-04 07:42:44 +00:00
|
|
|
}
|
2018-09-12 07:46:12 +00:00
|
|
|
var ret weed_server.FilerPostResult
|
2018-09-04 07:42:44 +00:00
|
|
|
unmarshal_err := json.Unmarshal(resp_body, &ret)
|
|
|
|
if unmarshal_err != nil {
|
|
|
|
glog.Errorf("failing to read upload to %s : %v", uploadUrl, string(resp_body))
|
2020-09-19 21:09:58 +00:00
|
|
|
return "", s3err.ErrInternalError
|
2018-09-04 07:42:44 +00:00
|
|
|
}
|
|
|
|
if ret.Error != "" {
|
|
|
|
glog.Errorf("upload to filer error: %v", ret.Error)
|
2020-10-20 17:25:16 +00:00
|
|
|
return "", filerErrorToS3Error(ret.Error)
|
2018-09-04 07:42:44 +00:00
|
|
|
}
|
|
|
|
|
2020-09-19 21:09:58 +00:00
|
|
|
return etag, s3err.ErrNone
|
2018-09-04 07:42:44 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
func setEtag(w http.ResponseWriter, etag string) {
|
|
|
|
if etag != "" {
|
2018-09-12 07:46:12 +00:00
|
|
|
if strings.HasPrefix(etag, "\"") {
|
|
|
|
w.Header().Set("ETag", etag)
|
|
|
|
} else {
|
|
|
|
w.Header().Set("ETag", "\""+etag+"\"")
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2020-07-26 19:58:58 +00:00
|
|
|
func getBucketAndObject(r *http.Request) (bucket, object string) {
|
|
|
|
vars := mux.Vars(r)
|
|
|
|
bucket = vars["bucket"]
|
|
|
|
object = vars["object"]
|
2018-09-12 07:46:12 +00:00
|
|
|
if !strings.HasPrefix(object, "/") {
|
|
|
|
object = "/" + object
|
|
|
|
}
|
2020-07-26 19:58:58 +00:00
|
|
|
|
|
|
|
return
|
2018-09-12 07:46:12 +00:00
|
|
|
}
|
2020-10-20 17:25:16 +00:00
|
|
|
|
|
|
|
func filerErrorToS3Error(errString string) s3err.ErrorCode {
|
|
|
|
if strings.HasPrefix(errString, "existing ") && strings.HasSuffix(errString, "is a directory") {
|
|
|
|
return s3err.ErrExistingObjectIsDirectory
|
|
|
|
}
|
|
|
|
return s3err.ErrInternalError
|
|
|
|
}
|