mirror of https://github.com/minio/minio.git
947 lines
28 KiB
Go
947 lines
28 KiB
Go
/*
|
|
* Minio Cloud Storage, (C) 2017 Minio, Inc.
|
|
*
|
|
* 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 cmd
|
|
|
|
import (
|
|
"io"
|
|
"io/ioutil"
|
|
"net"
|
|
"net/http"
|
|
"strconv"
|
|
|
|
"encoding/hex"
|
|
"encoding/json"
|
|
|
|
router "github.com/gorilla/mux"
|
|
"github.com/minio/minio-go/pkg/policy"
|
|
)
|
|
|
|
// GetObjectHandler - GET Object
|
|
// ----------
|
|
// This implementation of the GET operation retrieves object. To use GET,
|
|
// you must have READ access to the object.
|
|
func (api gatewayAPIHandlers) GetObjectHandler(w http.ResponseWriter, r *http.Request) {
|
|
var object, bucket string
|
|
vars := router.Vars(r)
|
|
bucket = vars["bucket"]
|
|
object = vars["object"]
|
|
|
|
// Fetch object stat info.
|
|
objectAPI := api.ObjectAPI()
|
|
if objectAPI == nil {
|
|
writeErrorResponse(w, ErrServerNotInitialized, r.URL)
|
|
return
|
|
}
|
|
|
|
reqAuthType := getRequestAuthType(r)
|
|
|
|
switch reqAuthType {
|
|
case authTypePresignedV2, authTypeSignedV2:
|
|
// Signature V2 validation.
|
|
s3Error := isReqAuthenticatedV2(r)
|
|
if s3Error != ErrNone {
|
|
errorIf(errSignatureMismatch, "%s", dumpRequest(r))
|
|
writeErrorResponse(w, s3Error, r.URL)
|
|
return
|
|
}
|
|
case authTypeSigned, authTypePresigned:
|
|
s3Error := isReqAuthenticated(r, serverConfig.GetRegion())
|
|
if s3Error != ErrNone {
|
|
errorIf(errSignatureMismatch, "%s", dumpRequest(r))
|
|
writeErrorResponse(w, s3Error, r.URL)
|
|
return
|
|
}
|
|
case authTypeAnonymous:
|
|
// No verification needed for anonymous requests.
|
|
default:
|
|
// For all unknown auth types return error.
|
|
writeErrorResponse(w, ErrAccessDenied, r.URL)
|
|
return
|
|
}
|
|
|
|
getObjectInfo := objectAPI.GetObjectInfo
|
|
if reqAuthType == authTypeAnonymous {
|
|
getObjectInfo = objectAPI.AnonGetObjectInfo
|
|
}
|
|
objInfo, err := getObjectInfo(bucket, object)
|
|
if err != nil {
|
|
errorIf(err, "Unable to fetch object info.")
|
|
apiErr := toAPIErrorCode(err)
|
|
if apiErr == ErrNoSuchKey {
|
|
apiErr = errAllowableObjectNotFound(bucket, r)
|
|
}
|
|
writeErrorResponse(w, apiErr, r.URL)
|
|
return
|
|
}
|
|
|
|
// Get request range.
|
|
var hrange *httpRange
|
|
rangeHeader := r.Header.Get("Range")
|
|
if rangeHeader != "" {
|
|
if hrange, err = parseRequestRange(rangeHeader, objInfo.Size); err != nil {
|
|
// Handle only errInvalidRange
|
|
// Ignore other parse error and treat it as regular Get request like Amazon S3.
|
|
if err == errInvalidRange {
|
|
writeErrorResponse(w, ErrInvalidRange, r.URL)
|
|
return
|
|
}
|
|
|
|
// log the error.
|
|
errorIf(err, "Invalid request range")
|
|
}
|
|
}
|
|
|
|
// Validate pre-conditions if any.
|
|
if checkPreconditions(w, r, objInfo) {
|
|
return
|
|
}
|
|
|
|
// Get the object.
|
|
var startOffset int64
|
|
length := objInfo.Size
|
|
if hrange != nil {
|
|
startOffset = hrange.offsetBegin
|
|
length = hrange.getLength()
|
|
}
|
|
// Indicates if any data was written to the http.ResponseWriter
|
|
dataWritten := false
|
|
// io.Writer type which keeps track if any data was written.
|
|
writer := funcToWriter(func(p []byte) (int, error) {
|
|
if !dataWritten {
|
|
// Set headers on the first write.
|
|
// Set standard object headers.
|
|
setObjectHeaders(w, objInfo, hrange)
|
|
|
|
// Set any additional requested response headers.
|
|
setHeadGetRespHeaders(w, r.URL.Query())
|
|
|
|
dataWritten = true
|
|
}
|
|
return w.Write(p)
|
|
})
|
|
|
|
getObject := objectAPI.GetObject
|
|
if reqAuthType == authTypeAnonymous {
|
|
getObject = objectAPI.AnonGetObject
|
|
}
|
|
|
|
// Reads the object at startOffset and writes to mw.
|
|
if err = getObject(bucket, object, startOffset, length, writer); err != nil {
|
|
errorIf(err, "Unable to write to client.")
|
|
if !dataWritten {
|
|
// Error response only if no data has been written to client yet. i.e if
|
|
// partial data has already been written before an error
|
|
// occurred then no point in setting StatusCode and
|
|
// sending error XML.
|
|
writeErrorResponse(w, toAPIErrorCode(err), r.URL)
|
|
}
|
|
return
|
|
}
|
|
if !dataWritten {
|
|
// If ObjectAPI.GetObject did not return error and no data has
|
|
// been written it would mean that it is a 0-byte object.
|
|
// call wrter.Write(nil) to set appropriate headers.
|
|
writer.Write(nil)
|
|
}
|
|
|
|
// Get host and port from Request.RemoteAddr.
|
|
host, port, err := net.SplitHostPort(r.RemoteAddr)
|
|
if err != nil {
|
|
host, port = "", ""
|
|
}
|
|
|
|
// Notify object accessed via a GET request.
|
|
eventNotify(eventData{
|
|
Type: ObjectAccessedGet,
|
|
Bucket: bucket,
|
|
ObjInfo: objInfo,
|
|
ReqParams: extractReqParams(r),
|
|
UserAgent: r.UserAgent(),
|
|
Host: host,
|
|
Port: port,
|
|
})
|
|
}
|
|
|
|
// PutObjectHandler - PUT Object
|
|
// ----------
|
|
// This implementation of the PUT operation adds an object to a bucket.
|
|
func (api gatewayAPIHandlers) PutObjectHandler(w http.ResponseWriter, r *http.Request) {
|
|
objectAPI := api.ObjectAPI()
|
|
if objectAPI == nil {
|
|
writeErrorResponse(w, ErrServerNotInitialized, r.URL)
|
|
return
|
|
}
|
|
|
|
// X-Amz-Copy-Source shouldn't be set for this call.
|
|
if _, ok := r.Header["X-Amz-Copy-Source"]; ok {
|
|
writeErrorResponse(w, ErrInvalidCopySource, r.URL)
|
|
return
|
|
}
|
|
|
|
var object, bucket string
|
|
vars := router.Vars(r)
|
|
bucket = vars["bucket"]
|
|
object = vars["object"]
|
|
|
|
// TODO: we should validate the object name here
|
|
|
|
// Get Content-Md5 sent by client and verify if valid
|
|
md5Bytes, err := checkValidMD5(r.Header.Get("Content-Md5"))
|
|
if err != nil {
|
|
errorIf(err, "Unable to validate content-md5 format.")
|
|
writeErrorResponse(w, ErrInvalidDigest, r.URL)
|
|
return
|
|
}
|
|
|
|
/// if Content-Length is unknown/missing, deny the request
|
|
size := r.ContentLength
|
|
reqAuthType := getRequestAuthType(r)
|
|
if reqAuthType == authTypeStreamingSigned {
|
|
sizeStr := r.Header.Get("x-amz-decoded-content-length")
|
|
size, err = strconv.ParseInt(sizeStr, 10, 64)
|
|
if err != nil {
|
|
errorIf(err, "Unable to parse `x-amz-decoded-content-length` into its integer value", sizeStr)
|
|
writeErrorResponse(w, toAPIErrorCode(err), r.URL)
|
|
return
|
|
}
|
|
}
|
|
if size == -1 {
|
|
writeErrorResponse(w, ErrMissingContentLength, r.URL)
|
|
return
|
|
}
|
|
|
|
/// maximum Upload size for objects in a single operation
|
|
if isMaxObjectSize(size) {
|
|
writeErrorResponse(w, ErrEntityTooLarge, r.URL)
|
|
return
|
|
}
|
|
|
|
// Extract metadata to be saved from incoming HTTP header.
|
|
metadata, err := extractMetadataFromHeader(r.Header)
|
|
if err != nil {
|
|
errorIf(err, "found invalid http request header")
|
|
writeErrorResponse(w, ErrInternalError, r.URL)
|
|
return
|
|
}
|
|
if reqAuthType == authTypeStreamingSigned {
|
|
if contentEncoding, ok := metadata["content-encoding"]; ok {
|
|
contentEncoding = trimAwsChunkedContentEncoding(contentEncoding)
|
|
if contentEncoding != "" {
|
|
// Make sure to trim and save the content-encoding
|
|
// parameter for a streaming signature which is set
|
|
// to a custom value for example: "aws-chunked,gzip".
|
|
metadata["content-encoding"] = contentEncoding
|
|
} else {
|
|
// Trimmed content encoding is empty when the header
|
|
// value is set to "aws-chunked" only.
|
|
|
|
// Make sure to delete the content-encoding parameter
|
|
// for a streaming signature which is set to value
|
|
// for example: "aws-chunked"
|
|
delete(metadata, "content-encoding")
|
|
}
|
|
}
|
|
}
|
|
|
|
// Make sure we hex encode md5sum here.
|
|
metadata["etag"] = hex.EncodeToString(md5Bytes)
|
|
|
|
// Lock the object.
|
|
objectLock := globalNSMutex.NewNSLock(bucket, object)
|
|
if objectLock.GetLock(globalOperationTimeout) != nil {
|
|
writeErrorResponse(w, ErrOperationTimedOut, r.URL)
|
|
return
|
|
}
|
|
defer objectLock.Unlock()
|
|
|
|
var objInfo ObjectInfo
|
|
switch reqAuthType {
|
|
case authTypeAnonymous:
|
|
// Create anonymous object.
|
|
objInfo, err = objectAPI.AnonPutObject(bucket, object, size, r.Body, metadata, "")
|
|
case authTypeStreamingSigned:
|
|
// Initialize stream signature verifier.
|
|
reader, s3Error := newSignV4ChunkedReader(r)
|
|
if s3Error != ErrNone {
|
|
errorIf(errSignatureMismatch, "%s", dumpRequest(r))
|
|
writeErrorResponse(w, s3Error, r.URL)
|
|
return
|
|
}
|
|
objInfo, err = objectAPI.PutObject(bucket, object, NewHashReader(reader, size, "", ""), metadata)
|
|
case authTypeSignedV2, authTypePresignedV2:
|
|
s3Error := isReqAuthenticatedV2(r)
|
|
if s3Error != ErrNone {
|
|
errorIf(errSignatureMismatch, "%s", dumpRequest(r))
|
|
writeErrorResponse(w, s3Error, r.URL)
|
|
return
|
|
}
|
|
objInfo, err = objectAPI.PutObject(bucket, object, NewHashReader(r.Body, size, "", ""), metadata)
|
|
case authTypePresigned, authTypeSigned:
|
|
if s3Error := reqSignatureV4Verify(r, serverConfig.GetRegion()); s3Error != ErrNone {
|
|
errorIf(errSignatureMismatch, "%s", dumpRequest(r))
|
|
writeErrorResponse(w, s3Error, r.URL)
|
|
return
|
|
}
|
|
|
|
sha256sum := ""
|
|
if !skipContentSha256Cksum(r) {
|
|
sha256sum = getContentSha256Cksum(r)
|
|
}
|
|
|
|
// Create object.
|
|
objInfo, err = objectAPI.PutObject(bucket, object, NewHashReader(r.Body, size, "", sha256sum), metadata)
|
|
default:
|
|
// For all unknown auth types return error.
|
|
writeErrorResponse(w, ErrAccessDenied, r.URL)
|
|
return
|
|
}
|
|
|
|
if err != nil {
|
|
errorIf(err, "Unable to save an object %s", r.URL.Path)
|
|
writeErrorResponse(w, toAPIErrorCode(err), r.URL)
|
|
return
|
|
}
|
|
|
|
w.Header().Set("ETag", "\""+objInfo.ETag+"\"")
|
|
writeSuccessResponseHeadersOnly(w)
|
|
|
|
// Get host and port from Request.RemoteAddr.
|
|
host, port, err := net.SplitHostPort(r.RemoteAddr)
|
|
if err != nil {
|
|
host, port = "", ""
|
|
}
|
|
|
|
// Notify object created event.
|
|
eventNotify(eventData{
|
|
Type: ObjectCreatedPut,
|
|
Bucket: bucket,
|
|
ObjInfo: objInfo,
|
|
ReqParams: extractReqParams(r),
|
|
UserAgent: r.UserAgent(),
|
|
Host: host,
|
|
Port: port,
|
|
})
|
|
}
|
|
|
|
// HeadObjectHandler - HEAD Object
|
|
// -----------
|
|
// The HEAD operation retrieves metadata from an object without returning the object itself.
|
|
func (api gatewayAPIHandlers) HeadObjectHandler(w http.ResponseWriter, r *http.Request) {
|
|
var object, bucket string
|
|
vars := router.Vars(r)
|
|
bucket = vars["bucket"]
|
|
object = vars["object"]
|
|
|
|
objectAPI := api.ObjectAPI()
|
|
if objectAPI == nil {
|
|
writeErrorResponseHeadersOnly(w, ErrServerNotInitialized)
|
|
return
|
|
}
|
|
|
|
reqAuthType := getRequestAuthType(r)
|
|
|
|
switch reqAuthType {
|
|
case authTypePresignedV2, authTypeSignedV2:
|
|
// Signature V2 validation.
|
|
s3Error := isReqAuthenticatedV2(r)
|
|
if s3Error != ErrNone {
|
|
errorIf(errSignatureMismatch, "%s", dumpRequest(r))
|
|
writeErrorResponse(w, s3Error, r.URL)
|
|
return
|
|
}
|
|
case authTypeSigned, authTypePresigned:
|
|
s3Error := isReqAuthenticated(r, serverConfig.GetRegion())
|
|
if s3Error != ErrNone {
|
|
errorIf(errSignatureMismatch, "%s", dumpRequest(r))
|
|
writeErrorResponse(w, s3Error, r.URL)
|
|
return
|
|
}
|
|
case authTypeAnonymous:
|
|
// No verification needed for anonymous requests.
|
|
default:
|
|
// For all unknown auth types return error.
|
|
writeErrorResponse(w, ErrAccessDenied, r.URL)
|
|
return
|
|
}
|
|
|
|
getObjectInfo := objectAPI.GetObjectInfo
|
|
if reqAuthType == authTypeAnonymous {
|
|
getObjectInfo = objectAPI.AnonGetObjectInfo
|
|
}
|
|
objInfo, err := getObjectInfo(bucket, object)
|
|
if err != nil {
|
|
errorIf(err, "Unable to fetch object info.")
|
|
apiErr := toAPIErrorCode(err)
|
|
if apiErr == ErrNoSuchKey {
|
|
apiErr = errAllowableObjectNotFound(bucket, r)
|
|
}
|
|
writeErrorResponse(w, apiErr, r.URL)
|
|
return
|
|
}
|
|
|
|
// Validate pre-conditions if any.
|
|
if checkPreconditions(w, r, objInfo) {
|
|
return
|
|
}
|
|
|
|
// Set standard object headers.
|
|
setObjectHeaders(w, objInfo, nil)
|
|
|
|
// Set any additional requested response headers.
|
|
setHeadGetRespHeaders(w, r.URL.Query())
|
|
|
|
// Successful response.
|
|
w.WriteHeader(http.StatusOK)
|
|
|
|
// Get host and port from Request.RemoteAddr.
|
|
host, port, err := net.SplitHostPort(r.RemoteAddr)
|
|
if err != nil {
|
|
host, port = "", ""
|
|
}
|
|
|
|
// Notify object accessed via a HEAD request.
|
|
eventNotify(eventData{
|
|
Type: ObjectAccessedHead,
|
|
Bucket: bucket,
|
|
ObjInfo: objInfo,
|
|
ReqParams: extractReqParams(r),
|
|
UserAgent: r.UserAgent(),
|
|
Host: host,
|
|
Port: port,
|
|
})
|
|
}
|
|
|
|
// PutBucketPolicyHandler - PUT Bucket policy
|
|
// -----------------
|
|
// This implementation of the PUT operation uses the policy
|
|
// subresource to add to or replace a policy on a bucket
|
|
func (api gatewayAPIHandlers) PutBucketPolicyHandler(w http.ResponseWriter, r *http.Request) {
|
|
objAPI := api.ObjectAPI()
|
|
if objAPI == nil {
|
|
writeErrorResponse(w, ErrServerNotInitialized, r.URL)
|
|
return
|
|
}
|
|
|
|
if s3Error := checkRequestAuthType(r, "", "", serverConfig.GetRegion()); s3Error != ErrNone {
|
|
writeErrorResponse(w, s3Error, r.URL)
|
|
return
|
|
}
|
|
|
|
vars := router.Vars(r)
|
|
bucket := vars["bucket"]
|
|
|
|
// Before proceeding validate if bucket exists.
|
|
_, err := objAPI.GetBucketInfo(bucket)
|
|
if err != nil {
|
|
errorIf(err, "Unable to find bucket info.")
|
|
writeErrorResponse(w, toAPIErrorCode(err), r.URL)
|
|
return
|
|
}
|
|
|
|
// If Content-Length is unknown or zero, deny the
|
|
// request. PutBucketPolicy always needs a Content-Length.
|
|
if r.ContentLength == -1 || r.ContentLength == 0 {
|
|
writeErrorResponse(w, ErrMissingContentLength, r.URL)
|
|
return
|
|
}
|
|
// If Content-Length is greater than maximum allowed policy size.
|
|
if r.ContentLength > maxAccessPolicySize {
|
|
writeErrorResponse(w, ErrEntityTooLarge, r.URL)
|
|
return
|
|
}
|
|
|
|
// Read access policy up to maxAccessPolicySize.
|
|
// http://docs.aws.amazon.com/AmazonS3/latest/dev/access-policy-language-overview.html
|
|
// bucket policies are limited to 20KB in size, using a limit reader.
|
|
policyBytes, err := ioutil.ReadAll(io.LimitReader(r.Body, maxAccessPolicySize))
|
|
if err != nil {
|
|
errorIf(err, "Unable to read from client.")
|
|
writeErrorResponse(w, toAPIErrorCode(err), r.URL)
|
|
return
|
|
}
|
|
|
|
policyInfo := policy.BucketAccessPolicy{}
|
|
if err = json.Unmarshal(policyBytes, &policyInfo); err != nil {
|
|
writeErrorResponse(w, toAPIErrorCode(err), r.URL)
|
|
return
|
|
}
|
|
|
|
if err = objAPI.SetBucketPolicies(bucket, policyInfo); err != nil {
|
|
writeErrorResponse(w, toAPIErrorCode(err), r.URL)
|
|
return
|
|
}
|
|
// Success.
|
|
writeSuccessNoContent(w)
|
|
}
|
|
|
|
// DeleteBucketPolicyHandler - DELETE Bucket policy
|
|
// -----------------
|
|
// This implementation of the DELETE operation uses the policy
|
|
// subresource to add to remove a policy on a bucket.
|
|
func (api gatewayAPIHandlers) DeleteBucketPolicyHandler(w http.ResponseWriter, r *http.Request) {
|
|
objAPI := api.ObjectAPI()
|
|
if objAPI == nil {
|
|
writeErrorResponse(w, ErrServerNotInitialized, r.URL)
|
|
return
|
|
}
|
|
|
|
if s3Error := checkRequestAuthType(r, "", "", serverConfig.GetRegion()); s3Error != ErrNone {
|
|
writeErrorResponse(w, s3Error, r.URL)
|
|
return
|
|
}
|
|
|
|
vars := router.Vars(r)
|
|
bucket := vars["bucket"]
|
|
|
|
// Before proceeding validate if bucket exists.
|
|
_, err := objAPI.GetBucketInfo(bucket)
|
|
if err != nil {
|
|
errorIf(err, "Unable to find bucket info.")
|
|
writeErrorResponse(w, toAPIErrorCode(err), r.URL)
|
|
return
|
|
}
|
|
|
|
// Delete bucket access policy, by passing an empty policy
|
|
// struct.
|
|
objAPI.DeleteBucketPolicies(bucket)
|
|
// Success.
|
|
writeSuccessNoContent(w)
|
|
}
|
|
|
|
// GetBucketPolicyHandler - GET Bucket policy
|
|
// -----------------
|
|
// This operation uses the policy
|
|
// subresource to return the policy of a specified bucket.
|
|
func (api gatewayAPIHandlers) GetBucketPolicyHandler(w http.ResponseWriter, r *http.Request) {
|
|
objAPI := api.ObjectAPI()
|
|
if objAPI == nil {
|
|
writeErrorResponse(w, ErrServerNotInitialized, r.URL)
|
|
return
|
|
}
|
|
|
|
if s3Error := checkRequestAuthType(r, "", "", serverConfig.GetRegion()); s3Error != ErrNone {
|
|
writeErrorResponse(w, s3Error, r.URL)
|
|
return
|
|
}
|
|
|
|
vars := router.Vars(r)
|
|
bucket := vars["bucket"]
|
|
|
|
// Before proceeding validate if bucket exists.
|
|
_, err := objAPI.GetBucketInfo(bucket)
|
|
if err != nil {
|
|
errorIf(err, "Unable to find bucket info.")
|
|
writeErrorResponse(w, toAPIErrorCode(err), r.URL)
|
|
return
|
|
}
|
|
|
|
bp, err := objAPI.GetBucketPolicies(bucket)
|
|
if err != nil {
|
|
errorIf(err, "Unable to read bucket policy.")
|
|
writeErrorResponse(w, toAPIErrorCode(err), r.URL)
|
|
return
|
|
}
|
|
|
|
policyBytes, err := json.Marshal(bp)
|
|
if err != nil {
|
|
errorIf(err, "Unable to read bucket policy.")
|
|
writeErrorResponse(w, toAPIErrorCode(err), r.URL)
|
|
return
|
|
}
|
|
// Write to client.
|
|
w.Write(policyBytes)
|
|
}
|
|
|
|
// GetBucketNotificationHandler - This implementation of the GET
|
|
// operation uses the notification subresource to return the
|
|
// notification configuration of a bucket. If notifications are
|
|
// not enabled on the bucket, the operation returns an empty
|
|
// NotificationConfiguration element.
|
|
func (api gatewayAPIHandlers) GetBucketNotificationHandler(w http.ResponseWriter, r *http.Request) {
|
|
writeErrorResponse(w, ErrNotImplemented, r.URL)
|
|
}
|
|
|
|
// PutBucketNotificationHandler - Minio notification feature enables
|
|
// you to receive notifications when certain events happen in your bucket.
|
|
// Using this API, you can replace an existing notification configuration.
|
|
// The configuration is an XML file that defines the event types that you
|
|
// want Minio to publish and the destination where you want Minio to publish
|
|
// an event notification when it detects an event of the specified type.
|
|
// By default, your bucket has no event notifications configured. That is,
|
|
// the notification configuration will be an empty NotificationConfiguration.
|
|
func (api gatewayAPIHandlers) PutBucketNotificationHandler(w http.ResponseWriter, r *http.Request) {
|
|
writeErrorResponse(w, ErrNotImplemented, r.URL)
|
|
}
|
|
|
|
// ListenBucketNotificationHandler - list bucket notifications.
|
|
func (api gatewayAPIHandlers) ListenBucketNotificationHandler(w http.ResponseWriter, r *http.Request) {
|
|
writeErrorResponse(w, ErrNotImplemented, r.URL)
|
|
}
|
|
|
|
// PutBucketHandler - PUT Bucket
|
|
// ----------
|
|
// This implementation of the PUT operation creates a new bucket for authenticated request
|
|
func (api gatewayAPIHandlers) PutBucketHandler(w http.ResponseWriter, r *http.Request) {
|
|
objectAPI := api.ObjectAPI()
|
|
if objectAPI == nil {
|
|
writeErrorResponse(w, ErrServerNotInitialized, r.URL)
|
|
return
|
|
}
|
|
|
|
// PutBucket does not have any bucket action.
|
|
s3Error := checkRequestAuthType(r, "", "", serverConfig.GetRegion())
|
|
if s3Error != ErrNone {
|
|
writeErrorResponse(w, s3Error, r.URL)
|
|
return
|
|
}
|
|
|
|
vars := router.Vars(r)
|
|
bucket := vars["bucket"]
|
|
|
|
// Validate if incoming location constraint is valid, reject
|
|
// requests which do not follow valid region requirements.
|
|
location, s3Error := parseLocationConstraint(r)
|
|
if s3Error != ErrNone {
|
|
writeErrorResponse(w, s3Error, r.URL)
|
|
return
|
|
}
|
|
|
|
bucketLock := globalNSMutex.NewNSLock(bucket, "")
|
|
if bucketLock.GetLock(globalOperationTimeout) != nil {
|
|
writeErrorResponse(w, ErrOperationTimedOut, r.URL)
|
|
return
|
|
}
|
|
defer bucketLock.Unlock()
|
|
|
|
// Proceed to creating a bucket.
|
|
err := objectAPI.MakeBucketWithLocation(bucket, location)
|
|
if err != nil {
|
|
errorIf(err, "Unable to create a bucket.")
|
|
writeErrorResponse(w, toAPIErrorCode(err), r.URL)
|
|
return
|
|
}
|
|
|
|
// Make sure to add Location information here only for bucket
|
|
w.Header().Set("Location", getLocation(r))
|
|
|
|
writeSuccessResponseHeadersOnly(w)
|
|
}
|
|
|
|
// DeleteBucketHandler - Delete bucket
|
|
func (api gatewayAPIHandlers) DeleteBucketHandler(w http.ResponseWriter, r *http.Request) {
|
|
objectAPI := api.ObjectAPI()
|
|
if objectAPI == nil {
|
|
writeErrorResponse(w, ErrServerNotInitialized, r.URL)
|
|
return
|
|
}
|
|
|
|
// DeleteBucket does not have any bucket action.
|
|
if s3Error := checkRequestAuthType(r, "", "", serverConfig.GetRegion()); s3Error != ErrNone {
|
|
writeErrorResponse(w, s3Error, r.URL)
|
|
return
|
|
}
|
|
|
|
vars := router.Vars(r)
|
|
bucket := vars["bucket"]
|
|
|
|
// Attempt to delete bucket.
|
|
if err := objectAPI.DeleteBucket(bucket); err != nil {
|
|
errorIf(err, "Unable to delete a bucket.")
|
|
writeErrorResponse(w, toAPIErrorCode(err), r.URL)
|
|
return
|
|
}
|
|
|
|
// Write success response.
|
|
writeSuccessNoContent(w)
|
|
}
|
|
|
|
// ListObjectsV1Handler - GET Bucket (List Objects) Version 1.
|
|
// --------------------------
|
|
// This implementation of the GET operation returns some or all (up to 1000)
|
|
// of the objects in a bucket. You can use the request parameters as selection
|
|
// criteria to return a subset of the objects in a bucket.
|
|
//
|
|
func (api gatewayAPIHandlers) ListObjectsV1Handler(w http.ResponseWriter, r *http.Request) {
|
|
vars := router.Vars(r)
|
|
bucket := vars["bucket"]
|
|
|
|
objectAPI := api.ObjectAPI()
|
|
if objectAPI == nil {
|
|
writeErrorResponse(w, ErrServerNotInitialized, r.URL)
|
|
return
|
|
}
|
|
|
|
reqAuthType := getRequestAuthType(r)
|
|
|
|
switch reqAuthType {
|
|
case authTypePresignedV2, authTypeSignedV2:
|
|
// Signature V2 validation.
|
|
s3Error := isReqAuthenticatedV2(r)
|
|
if s3Error != ErrNone {
|
|
errorIf(errSignatureMismatch, "%s", dumpRequest(r))
|
|
writeErrorResponse(w, s3Error, r.URL)
|
|
return
|
|
}
|
|
case authTypeSigned, authTypePresigned:
|
|
s3Error := isReqAuthenticated(r, serverConfig.GetRegion())
|
|
if s3Error != ErrNone {
|
|
errorIf(errSignatureMismatch, "%s", dumpRequest(r))
|
|
writeErrorResponse(w, s3Error, r.URL)
|
|
return
|
|
}
|
|
case authTypeAnonymous:
|
|
// No verification needed for anonymous requests.
|
|
default:
|
|
// For all unknown auth types return error.
|
|
writeErrorResponse(w, ErrAccessDenied, r.URL)
|
|
return
|
|
}
|
|
|
|
// Extract all the listObjectsV1 query params to their native
|
|
// values. N B We delegate validation of params to respective
|
|
// gateway backends.
|
|
prefix, marker, delimiter, maxKeys, _ := getListObjectsV1Args(r.URL.Query())
|
|
|
|
// Validate the maxKeys lowerbound. When maxKeys > 1000, S3 returns 1000 but
|
|
// does not throw an error.
|
|
if maxKeys < 0 {
|
|
writeErrorResponse(w, ErrInvalidMaxKeys, r.URL)
|
|
return
|
|
}
|
|
|
|
listObjects := objectAPI.ListObjects
|
|
if reqAuthType == authTypeAnonymous {
|
|
listObjects = objectAPI.AnonListObjects
|
|
}
|
|
// Inititate a list objects operation based on the input params.
|
|
// On success would return back ListObjectsInfo object to be
|
|
// marshalled into S3 compatible XML header.
|
|
listObjectsInfo, err := listObjects(bucket, prefix, marker, delimiter, maxKeys)
|
|
if err != nil {
|
|
errorIf(err, "Unable to list objects.")
|
|
writeErrorResponse(w, toAPIErrorCode(err), r.URL)
|
|
return
|
|
}
|
|
response := generateListObjectsV1Response(bucket, prefix, marker, delimiter, maxKeys, listObjectsInfo)
|
|
// Write success response.
|
|
writeSuccessResponseXML(w, encodeResponse(response))
|
|
}
|
|
|
|
// ListObjectsV2Handler - GET Bucket (List Objects) Version 2.
|
|
// --------------------------
|
|
// This implementation of the GET operation returns some or all (up to 1000)
|
|
// of the objects in a bucket. You can use the request parameters as selection
|
|
// criteria to return a subset of the objects in a bucket.
|
|
//
|
|
// NOTE: It is recommended that this API to be used for application development.
|
|
// Minio continues to support ListObjectsV1 for supporting legacy tools.
|
|
func (api gatewayAPIHandlers) ListObjectsV2Handler(w http.ResponseWriter, r *http.Request) {
|
|
vars := router.Vars(r)
|
|
bucket := vars["bucket"]
|
|
|
|
objectAPI := api.ObjectAPI()
|
|
if objectAPI == nil {
|
|
writeErrorResponse(w, ErrServerNotInitialized, r.URL)
|
|
return
|
|
}
|
|
|
|
reqAuthType := getRequestAuthType(r)
|
|
|
|
switch reqAuthType {
|
|
case authTypePresignedV2, authTypeSignedV2:
|
|
// Signature V2 validation.
|
|
s3Error := isReqAuthenticatedV2(r)
|
|
if s3Error != ErrNone {
|
|
errorIf(errSignatureMismatch, dumpRequest(r))
|
|
writeErrorResponse(w, s3Error, r.URL)
|
|
return
|
|
}
|
|
case authTypeSigned, authTypePresigned:
|
|
s3Error := isReqAuthenticated(r, serverConfig.GetRegion())
|
|
if s3Error != ErrNone {
|
|
errorIf(errSignatureMismatch, dumpRequest(r))
|
|
writeErrorResponse(w, s3Error, r.URL)
|
|
return
|
|
}
|
|
case authTypeAnonymous:
|
|
// No verification needed for anonymous requests.
|
|
default:
|
|
// For all unknown auth types return error.
|
|
writeErrorResponse(w, ErrAccessDenied, r.URL)
|
|
return
|
|
}
|
|
|
|
// Extract all the listObjectsV2 query params to their native values.
|
|
prefix, token, startAfter, delimiter, fetchOwner, maxKeys, _ := getListObjectsV2Args(r.URL.Query())
|
|
|
|
// In ListObjectsV2 'continuation-token' is the marker.
|
|
marker := token
|
|
// Check if 'continuation-token' is empty.
|
|
if token == "" {
|
|
// Then we need to use 'start-after' as marker instead.
|
|
marker = startAfter
|
|
}
|
|
|
|
listObjectsV2 := objectAPI.ListObjectsV2
|
|
if reqAuthType == authTypeAnonymous {
|
|
listObjectsV2 = objectAPI.AnonListObjectsV2
|
|
}
|
|
|
|
// Validate the query params before beginning to serve the request.
|
|
// fetch-owner is not validated since it is a boolean
|
|
if s3Error := validateGatewayListObjectsV2Args(prefix, marker, delimiter, maxKeys); s3Error != ErrNone {
|
|
writeErrorResponse(w, s3Error, r.URL)
|
|
return
|
|
}
|
|
// Inititate a list objects operation based on the input params.
|
|
// On success would return back ListObjectsV2Info object to be
|
|
// serialized as XML and sent as S3 compatible response body.
|
|
listObjectsV2Info, err := listObjectsV2(bucket, prefix, token, delimiter, maxKeys, fetchOwner, startAfter)
|
|
if err != nil {
|
|
errorIf(err, "Unable to list objects. Args to listObjectsV2 are bucket=%s, prefix=%s, token=%s, delimiter=%s", bucket, prefix, token, delimiter)
|
|
writeErrorResponse(w, toAPIErrorCode(err), r.URL)
|
|
return
|
|
}
|
|
|
|
response := generateListObjectsV2Response(bucket, prefix, token, listObjectsV2Info.NextContinuationToken, startAfter, delimiter, fetchOwner, listObjectsV2Info.IsTruncated, maxKeys, listObjectsV2Info.Objects, listObjectsV2Info.Prefixes)
|
|
// Write success response.
|
|
writeSuccessResponseXML(w, encodeResponse(response))
|
|
}
|
|
|
|
// HeadBucketHandler - HEAD Bucket
|
|
// ----------
|
|
// This operation is useful to determine if a bucket exists.
|
|
// The operation returns a 200 OK if the bucket exists and you
|
|
// have permission to access it. Otherwise, the operation might
|
|
// return responses such as 404 Not Found and 403 Forbidden.
|
|
func (api gatewayAPIHandlers) HeadBucketHandler(w http.ResponseWriter, r *http.Request) {
|
|
vars := router.Vars(r)
|
|
bucket := vars["bucket"]
|
|
|
|
objectAPI := api.ObjectAPI()
|
|
if objectAPI == nil {
|
|
writeErrorResponseHeadersOnly(w, ErrServerNotInitialized)
|
|
return
|
|
}
|
|
|
|
reqAuthType := getRequestAuthType(r)
|
|
|
|
switch reqAuthType {
|
|
case authTypePresignedV2, authTypeSignedV2:
|
|
// Signature V2 validation.
|
|
s3Error := isReqAuthenticatedV2(r)
|
|
if s3Error != ErrNone {
|
|
errorIf(errSignatureMismatch, "%s", dumpRequest(r))
|
|
writeErrorResponse(w, s3Error, r.URL)
|
|
return
|
|
}
|
|
case authTypeSigned, authTypePresigned:
|
|
s3Error := isReqAuthenticated(r, serverConfig.GetRegion())
|
|
if s3Error != ErrNone {
|
|
errorIf(errSignatureMismatch, "%s", dumpRequest(r))
|
|
writeErrorResponse(w, s3Error, r.URL)
|
|
return
|
|
}
|
|
case authTypeAnonymous:
|
|
// No verification needed for anonymous requests.
|
|
default:
|
|
// For all unknown auth types return error.
|
|
writeErrorResponse(w, ErrAccessDenied, r.URL)
|
|
return
|
|
}
|
|
|
|
getBucketInfo := objectAPI.GetBucketInfo
|
|
if reqAuthType == authTypeAnonymous {
|
|
getBucketInfo = objectAPI.AnonGetBucketInfo
|
|
}
|
|
|
|
if _, err := getBucketInfo(bucket); err != nil {
|
|
errorIf(err, "Unable to fetch bucket info.")
|
|
writeErrorResponseHeadersOnly(w, toAPIErrorCode(err))
|
|
return
|
|
}
|
|
|
|
writeSuccessResponseHeadersOnly(w)
|
|
}
|
|
|
|
// GetBucketLocationHandler - GET Bucket location.
|
|
// -------------------------
|
|
// This operation returns bucket location.
|
|
func (api gatewayAPIHandlers) GetBucketLocationHandler(w http.ResponseWriter, r *http.Request) {
|
|
vars := router.Vars(r)
|
|
bucket := vars["bucket"]
|
|
|
|
objectAPI := api.ObjectAPI()
|
|
if objectAPI == nil {
|
|
writeErrorResponse(w, ErrServerNotInitialized, r.URL)
|
|
return
|
|
}
|
|
reqAuthType := getRequestAuthType(r)
|
|
|
|
switch reqAuthType {
|
|
case authTypePresignedV2, authTypeSignedV2:
|
|
// Signature V2 validation.
|
|
s3Error := isReqAuthenticatedV2(r)
|
|
if s3Error != ErrNone {
|
|
errorIf(errSignatureMismatch, "%s", dumpRequest(r))
|
|
writeErrorResponse(w, s3Error, r.URL)
|
|
return
|
|
}
|
|
case authTypeSigned, authTypePresigned:
|
|
s3Error := isReqAuthenticated(r, globalMinioDefaultRegion)
|
|
if s3Error == ErrInvalidRegion {
|
|
// Clients like boto3 send getBucketLocation() call signed with region that is configured.
|
|
s3Error = isReqAuthenticated(r, serverConfig.GetRegion())
|
|
}
|
|
if s3Error != ErrNone {
|
|
errorIf(errSignatureMismatch, "%s", dumpRequest(r))
|
|
writeErrorResponse(w, s3Error, r.URL)
|
|
return
|
|
}
|
|
case authTypeAnonymous:
|
|
// No verification needed for anonymous requests.
|
|
default:
|
|
// For all unknown auth types return error.
|
|
writeErrorResponse(w, ErrAccessDenied, r.URL)
|
|
return
|
|
}
|
|
|
|
getBucketInfo := objectAPI.GetBucketInfo
|
|
if reqAuthType == authTypeAnonymous {
|
|
getBucketInfo = objectAPI.AnonGetBucketInfo
|
|
}
|
|
|
|
if _, err := getBucketInfo(bucket); err != nil {
|
|
errorIf(err, "Unable to fetch bucket info.")
|
|
writeErrorResponse(w, toAPIErrorCode(err), r.URL)
|
|
return
|
|
}
|
|
|
|
// Generate response.
|
|
encodedSuccessResponse := encodeResponse(LocationResponse{})
|
|
// Get current region.
|
|
region := serverConfig.GetRegion()
|
|
if region != globalMinioDefaultRegion {
|
|
encodedSuccessResponse = encodeResponse(LocationResponse{
|
|
Location: region,
|
|
})
|
|
}
|
|
|
|
// Write success response.
|
|
writeSuccessResponseXML(w, encodedSuccessResponse)
|
|
}
|