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package s3api
import (
"crypto/md5"
"encoding/json"
"fmt"
"io"
"net/http"
"strings"
"time"
"github.com/pquerna/cachecontrol/cacheobject"
"github.com/seaweedfs/seaweedfs/weed/s3api/s3_constants"
"github.com/seaweedfs/seaweedfs/weed/s3api/s3err"
"github.com/seaweedfs/seaweedfs/weed/security"
"github.com/seaweedfs/seaweedfs/weed/glog"
"github.com/seaweedfs/seaweedfs/weed/pb/filer_pb"
weed_server "github.com/seaweedfs/seaweedfs/weed/server"
)
func (s3a *S3ApiServer) PutObjectHandler(w http.ResponseWriter, r *http.Request) {
// http://docs.aws.amazon.com/AmazonS3/latest/dev/UploadingObjects.html
bucket, object := s3_constants.GetBucketAndObject(r)
glog.V(3).Infof("PutObjectHandler %s %s", bucket, object)
_, err := validateContentMd5(r.Header)
if err != nil {
s3err.WriteErrorResponse(w, r, s3err.ErrInvalidDigest)
return
}
if r.Header.Get("Cache-Control") != "" {
if _, err = cacheobject.ParseRequestCacheControl(r.Header.Get("Cache-Control")); err != nil {
s3err.WriteErrorResponse(w, r, s3err.ErrInvalidDigest)
return
}
}
if r.Header.Get("Expires") != "" {
if _, err = time.Parse(http.TimeFormat, r.Header.Get("Expires")); err != nil {
s3err.WriteErrorResponse(w, r, s3err.ErrMalformedDate)
return
}
}
dataReader := r.Body
rAuthType := getRequestAuthType(r)
if s3a.iam.isEnabled() {
var s3ErrCode s3err.ErrorCode
switch rAuthType {
case authTypeStreamingSigned:
dataReader, s3ErrCode = s3a.iam.newSignV4ChunkedReader(r)
case authTypeSignedV2, authTypePresignedV2:
_, s3ErrCode = s3a.iam.isReqAuthenticatedV2(r)
case authTypePresigned, authTypeSigned:
_, s3ErrCode = s3a.iam.reqSignatureV4Verify(r)
}
if s3ErrCode != s3err.ErrNone {
s3err.WriteErrorResponse(w, r, s3ErrCode)
return
}
} else {
if authTypeStreamingSigned == rAuthType {
s3err.WriteErrorResponse(w, r, s3err.ErrAuthNotSetup)
return
}
}
defer dataReader.Close()
objectContentType := r.Header.Get("Content-Type")
if strings.HasSuffix(object, "/") && r.ContentLength <= 1024 {
if err := s3a.mkdir(
s3a.option.BucketsPath, bucket+strings.TrimSuffix(object, "/"),
func(entry *filer_pb.Entry) {
if objectContentType == "" {
objectContentType = s3_constants.FolderMimeType
}
if r.ContentLength > 0 {
entry.Content, _ = io.ReadAll(r.Body)
}
entry.Attributes.Mime = objectContentType
}); err != nil {
s3err.WriteErrorResponse(w, r, s3err.ErrInternalError)
return
}
} else {
uploadUrl := s3a.toFilerUrl(bucket, object)
if objectContentType == "" {
dataReader = mimeDetect(r, dataReader)
}
etag, errCode := s3a.putToFiler(r, uploadUrl, dataReader, "", bucket)
if errCode != s3err.ErrNone {
s3err.WriteErrorResponse(w, r, errCode)
return
}
setEtag(w, etag)
}
writeSuccessResponseEmpty(w, r)
}
func (s3a *S3ApiServer) putToFiler(r *http.Request, uploadUrl string, dataReader io.Reader, destination string, bucket string) (etag string, code s3err.ErrorCode) {
hash := md5.New()
var body = io.TeeReader(dataReader, hash)
proxyReq, err := http.NewRequest(http.MethodPut, uploadUrl, body)
if err != nil {
glog.Errorf("NewRequest %s: %v", uploadUrl, err)
return "", s3err.ErrInternalError
}
proxyReq.Header.Set("X-Forwarded-For", r.RemoteAddr)
if destination != "" {
proxyReq.Header.Set(s3_constants.SeaweedStorageDestinationHeader, destination)
}
if s3a.option.FilerGroup != "" {
query := proxyReq.URL.Query()
query.Add("collection", s3a.getCollectionName(bucket))
proxyReq.URL.RawQuery = query.Encode()
}
for header, values := range r.Header {
for _, value := range values {
proxyReq.Header.Add(header, value)
}
}
// ensure that the Authorization header is overriding any previous
// Authorization header which might be already present in proxyReq
s3a.maybeAddFilerJwtAuthorization(proxyReq, true)
resp, postErr := s3a.client.Do(proxyReq)
if postErr != nil {
glog.Errorf("post to filer: %v", postErr)
return "", s3err.ErrInternalError
}
defer resp.Body.Close()
etag = fmt.Sprintf("%x", hash.Sum(nil))
resp_body, ra_err := io.ReadAll(resp.Body)
if ra_err != nil {
glog.Errorf("upload to filer response read %d: %v", resp.StatusCode, ra_err)
return etag, s3err.ErrInternalError
}
var ret weed_server.FilerPostResult
unmarshal_err := json.Unmarshal(resp_body, &ret)
if unmarshal_err != nil {
glog.Errorf("failing to read upload to %s : %v", uploadUrl, string(resp_body))
return "", s3err.ErrInternalError
}
if ret.Error != "" {
glog.Errorf("upload to filer error: %v", ret.Error)
return "", filerErrorToS3Error(ret.Error)
}
return etag, s3err.ErrNone
}
func setEtag(w http.ResponseWriter, etag string) {
if etag != "" {
if strings.HasPrefix(etag, "\"") {
w.Header()["ETag"] = []string{etag}
} else {
w.Header()["ETag"] = []string{"\"" + etag + "\""}
}
}
}
func filerErrorToS3Error(errString string) s3err.ErrorCode {
switch {
case strings.HasPrefix(errString, "existing ") && strings.HasSuffix(errString, "is a directory"):
return s3err.ErrExistingObjectIsDirectory
case strings.HasSuffix(errString, "is a file"):
return s3err.ErrExistingObjectIsFile
default:
return s3err.ErrInternalError
}
}
func (s3a *S3ApiServer) maybeAddFilerJwtAuthorization(r *http.Request, isWrite bool) {
encodedJwt := s3a.maybeGetFilerJwtAuthorizationToken(isWrite)
if encodedJwt == "" {
return
}
r.Header.Set("Authorization", "BEARER "+string(encodedJwt))
}
func (s3a *S3ApiServer) maybeGetFilerJwtAuthorizationToken(isWrite bool) string {
var encodedJwt security.EncodedJwt
if isWrite {
encodedJwt = security.GenJwtForFilerServer(s3a.filerGuard.SigningKey, s3a.filerGuard.ExpiresAfterSec)
} else {
encodedJwt = security.GenJwtForFilerServer(s3a.filerGuard.ReadSigningKey, s3a.filerGuard.ReadExpiresAfterSec)
}
return string(encodedJwt)
}
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