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gateway-s3: vendor-update minio-go (#4220)

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This commit is contained in:
Krishna Srinivas 2017-05-02 18:46:39 -07:00 committed by Harshavardhana
parent 4aa65910e5
commit e5b2e25caf
17 changed files with 284 additions and 102 deletions
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16
cmd/gateway-s3-anonymous.go
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@ -16,18 +16,25 @@
package cmd
import "io"
import (
"io"
minio "github.com/minio/minio-go"
)
// AnonGetObject - Get object anonymously
func (l *s3Gateway) AnonGetObject(bucket string, key string, startOffset int64, length int64, writer io.Writer) error {
object, err := l.anonClient.GetObject(bucket, key)
r := minio.NewGetReqHeaders()
if err := r.SetRange(startOffset, startOffset+length-1); err != nil {
return s3ToObjectError(traceError(err), bucket, key)
}
object, _, err := l.anonClient.GetObject(bucket, key, r)
if err != nil {
return s3ToObjectError(traceError(err), bucket, key)
}
defer object.Close()
object.Seek(startOffset, io.SeekStart)
if _, err := io.CopyN(writer, object, length); err != nil {
return s3ToObjectError(traceError(err), bucket, key)
}
@ -37,7 +44,8 @@ func (l *s3Gateway) AnonGetObject(bucket string, key string, startOffset int64,
// AnonGetObjectInfo - Get object info anonymously
func (l *s3Gateway) AnonGetObjectInfo(bucket string, object string) (ObjectInfo, error) {
oi, err := l.anonClient.StatObject(bucket, object)
r := minio.NewHeadReqHeaders()
oi, err := l.anonClient.StatObject(bucket, object, r)
if err != nil {
return ObjectInfo{}, s3ToObjectError(traceError(err), bucket, object)
}

56
cmd/gateway-s3.go
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@ -17,8 +17,6 @@
package cmd
import (
"crypto/sha256"
"hash"
"io"
"net/http"
"path"
@ -264,17 +262,17 @@ func fromMinioClientListBucketResult(bucket string, result minio.ListBucketResul
// startOffset indicates the starting read location of the object.
// length indicates the total length of the object.
func (l *s3Gateway) GetObject(bucket string, key string, startOffset int64, length int64, writer io.Writer) error {
object, err := l.Client.GetObject(bucket, key)
r := minio.NewGetReqHeaders()
if err := r.SetRange(startOffset, startOffset+length-1); err != nil {
return s3ToObjectError(traceError(err), bucket, key)
}
object, _, err := l.Client.GetObject(bucket, key, r)
if err != nil {
return s3ToObjectError(traceError(err), bucket, key)
}
defer object.Close()
if _, err := object.Seek(startOffset, io.SeekStart); err != nil {
return s3ToObjectError(traceError(err), bucket, key)
}
if _, err := io.CopyN(writer, object, length); err != nil {
return s3ToObjectError(traceError(err), bucket, key)
}
@ -301,7 +299,8 @@ func fromMinioClientObjectInfo(bucket string, oi minio.ObjectInfo) ObjectInfo {
// GetObjectInfo reads object info and replies back ObjectInfo
func (l *s3Gateway) GetObjectInfo(bucket string, object string) (objInfo ObjectInfo, err error) {
oi, err := l.Client.StatObject(bucket, object)
r := minio.NewHeadReqHeaders()
oi, err := l.Client.StatObject(bucket, object, r)
if err != nil {
return ObjectInfo{}, s3ToObjectError(traceError(err), bucket, object)
}
@ -311,34 +310,29 @@ func (l *s3Gateway) GetObjectInfo(bucket string, object string) (objInfo ObjectI
// PutObject creates a new object with the incoming data,
func (l *s3Gateway) PutObject(bucket string, object string, size int64, data io.Reader, metadata map[string]string, sha256sum string) (ObjectInfo, error) {
var sha256Writer hash.Hash
var sha256sumBytes []byte
sha256sumBytes := []byte{}
teeReader := data
if sha256sum == "" {
} else if b, err := hex.DecodeString(sha256sum); err != nil {
return ObjectInfo{}, s3ToObjectError(traceError(err), bucket, object)
} else {
sha256sumBytes = b
sha256Writer = sha256.New()
teeReader = io.TeeReader(data, sha256Writer)
}
delete(metadata, "md5Sum")
oi, err := l.Client.PutObject(bucket, object, size, teeReader, nil, sha256sumBytes, toMinioClientMetadata(metadata))
var err error
if sha256sum != "" {
sha256sumBytes, err = hex.DecodeString(sha256sum)
if err != nil {
return ObjectInfo{}, s3ToObjectError(traceError(err), bucket, object)
}
if sha256sum != "" {
newSHA256sum := hex.EncodeToString(sha256Writer.Sum(nil))
if newSHA256sum != sha256sum {
l.Client.RemoveObject(bucket, object)
return ObjectInfo{}, traceError(SHA256Mismatch{})
}
var md5sumBytes []byte
md5sum := metadata["md5Sum"]
if md5sum != "" {
md5sumBytes, err = hex.DecodeString(md5sum)
if err != nil {
return ObjectInfo{}, s3ToObjectError(traceError(err), bucket, object)
}
delete(metadata, "md5Sum")
}
oi, err := l.Client.PutObject(bucket, object, size, data, md5sumBytes, sha256sumBytes, toMinioClientMetadata(metadata))
if err != nil {
return ObjectInfo{}, s3ToObjectError(traceError(err), bucket, object)
}
return fromMinioClientObjectInfo(bucket, oi), nil

7
vendor/github.com/minio/minio-go/api-error-response.go generated vendored
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@ -134,6 +134,13 @@ func httpRespToErrorResponse(resp *http.Response, bucketName, objectName string)
Message: "Bucket not empty.",
BucketName: bucketName,
}
case http.StatusPreconditionFailed:
errResp = ErrorResponse{
Code: "PreconditionFailed",
Message: s3ErrorResponseMap["PreconditionFailed"],
BucketName: bucketName,
Key: objectName,
}
default:
errResp = ErrorResponse{
Code: resp.Status,

7
vendor/github.com/minio/minio-go/api-get-object-file.go generated vendored
View File

@ -78,8 +78,13 @@ func (c Client) FGetObject(bucketName, objectName, filePath string) error {
return err
}
// Initialize get object request headers to set the
// appropriate range offsets to read from.
reqHeaders := NewGetReqHeaders()
reqHeaders.SetRange(st.Size(), 0)
// Seek to current position for incoming reader.
objectReader, objectStat, err := c.getObject(bucketName, objectName, st.Size(), 0)
objectReader, objectStat, err := c.getObject(bucketName, objectName, reqHeaders)
if err != nil {
return err
}

62
vendor/github.com/minio/minio-go/api-get-object.go generated vendored
View File

@ -1,5 +1,5 @@
/*
* Minio Go Library for Amazon S3 Compatible Cloud Storage (C) 2015, 2016 Minio, Inc.
* Minio Go Library for Amazon S3 Compatible Cloud Storage (C) 2015, 2016, 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.
@ -67,6 +67,7 @@ func (c Client) GetObject(bucketName, objectName string) (*Object, error) {
var httpReader io.ReadCloser
var objectInfo ObjectInfo
var err error
// Create request channel.
reqCh := make(chan getRequest)
// Create response channel.
@ -79,6 +80,9 @@ func (c Client) GetObject(bucketName, objectName string) (*Object, error) {
defer close(reqCh)
defer close(resCh)
// Used to verify if etag of object has changed since last read.
var etag string
// Loop through the incoming control messages and read data.
for {
select {
@ -97,16 +101,19 @@ func (c Client) GetObject(bucketName, objectName string) (*Object, error) {
if req.isFirstReq {
// First request is a Read/ReadAt.
if req.isReadOp {
reqHeaders := NewGetReqHeaders()
// Differentiate between wanting the whole object and just a range.
if req.isReadAt {
// If this is a ReadAt request only get the specified range.
// Range is set with respect to the offset and length of the buffer requested.
// Do not set objectInfo from the first readAt request because it will not get
// the whole object.
httpReader, _, err = c.getObject(bucketName, objectName, req.Offset, int64(len(req.Buffer)))
reqHeaders.SetRange(req.Offset, req.Offset+int64(len(req.Buffer))-1)
httpReader, objectInfo, err = c.getObject(bucketName, objectName, reqHeaders)
} else {
reqHeaders.SetRange(req.Offset, 0)
// First request is a Read request.
httpReader, objectInfo, err = c.getObject(bucketName, objectName, req.Offset, 0)
httpReader, objectInfo, err = c.getObject(bucketName, objectName, reqHeaders)
}
if err != nil {
resCh <- getResponse{
@ -114,6 +121,7 @@ func (c Client) GetObject(bucketName, objectName string) (*Object, error) {
}
return
}
etag = objectInfo.ETag
// Read at least firstReq.Buffer bytes, if not we have
// reached our EOF.
size, err := io.ReadFull(httpReader, req.Buffer)
@ -140,13 +148,18 @@ func (c Client) GetObject(bucketName, objectName string) (*Object, error) {
// Exit the go-routine.
return
}
etag = objectInfo.ETag
// Send back the first response.
resCh <- getResponse{
objectInfo: objectInfo,
}
}
} else if req.settingObjectInfo { // Request is just to get objectInfo.
objectInfo, err := c.StatObject(bucketName, objectName)
reqHeaders := NewGetReqHeaders()
if etag != "" {
reqHeaders.SetMatchETag(etag)
}
objectInfo, err := c.statObject(bucketName, objectName, reqHeaders)
if err != nil {
resCh <- getResponse{
Error: err,
@ -166,6 +179,10 @@ func (c Client) GetObject(bucketName, objectName string) (*Object, error) {
// new ones when they haven't been already.
// All readAt requests are new requests.
if req.DidOffsetChange || !req.beenRead {
reqHeaders := NewGetReqHeaders()
if etag != "" {
reqHeaders.SetMatchETag(etag)
}
if httpReader != nil {
// Close previously opened http reader.
httpReader.Close()
@ -173,9 +190,12 @@ func (c Client) GetObject(bucketName, objectName string) (*Object, error) {
// If this request is a readAt only get the specified range.
if req.isReadAt {
// Range is set with respect to the offset and length of the buffer requested.
httpReader, _, err = c.getObject(bucketName, objectName, req.Offset, int64(len(req.Buffer)))
reqHeaders.SetRange(req.Offset, req.Offset+int64(len(req.Buffer))-1)
httpReader, _, err = c.getObject(bucketName, objectName, reqHeaders)
} else {
httpReader, objectInfo, err = c.getObject(bucketName, objectName, req.Offset, 0)
// Range is set with respect to the offset.
reqHeaders.SetRange(req.Offset, 0)
httpReader, objectInfo, err = c.getObject(bucketName, objectName, reqHeaders)
}
if err != nil {
resCh <- getResponse{
@ -230,8 +250,8 @@ type getResponse struct {
objectInfo ObjectInfo // Used for the first request.
}
// Object represents an open object. It implements Read, ReadAt,
// Seeker, Close for a HTTP stream.
// Object represents an open object. It implements
// Reader, ReaderAt, Seeker, Closer for a HTTP stream.
type Object struct {
// Mutex.
mutex *sync.Mutex
@ -269,6 +289,12 @@ type Object struct {
func (o *Object) doGetRequest(request getRequest) (getResponse, error) {
o.reqCh <- request
response := <-o.resCh
// Return any error to the top level.
if response.Error != nil {
return response, response.Error
}
// This was the first request.
if !o.isStarted {
// The object has been operated on.
@ -284,11 +310,6 @@ func (o *Object) doGetRequest(request getRequest) (getResponse, error) {
if !o.beenRead {
o.beenRead = response.didRead
}
// Return any error to the top level.
if response.Error != nil {
return response, response.Error
}
// Data are ready on the wire, no need to reinitiate connection in lower level
o.seekData = false
@ -594,7 +615,7 @@ func newObject(reqCh chan<- getRequest, resCh <-chan getResponse, doneCh chan<-
//
// For more information about the HTTP Range header.
// go to http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.35.
func (c Client) getObject(bucketName, objectName string, offset, length int64) (io.ReadCloser, ObjectInfo, error) {
func (c Client) getObject(bucketName, objectName string, reqHeaders RequestHeaders) (io.ReadCloser, ObjectInfo, error) {
// Validate input arguments.
if err := isValidBucketName(bucketName); err != nil {
return nil, ObjectInfo{}, err
@ -603,15 +624,10 @@ func (c Client) getObject(bucketName, objectName string, offset, length int64) (
return nil, ObjectInfo{}, err
}
// Set all the necessary reqHeaders.
customHeader := make(http.Header)
// Set ranges if length and offset are valid.
// See https://tools.ietf.org/html/rfc7233#section-3.1 for reference.
if length > 0 && offset >= 0 {
customHeader.Set("Range", fmt.Sprintf("bytes=%d-%d", offset, offset+length-1))
} else if offset > 0 && length == 0 {
customHeader.Set("Range", fmt.Sprintf("bytes=%d-", offset))
} else if length < 0 && offset == 0 {
customHeader.Set("Range", fmt.Sprintf("bytes=%d", length))
for key, value := range reqHeaders.Header {
customHeader[key] = value
}
// Execute GET on objectName.
@ -619,6 +635,7 @@ func (c Client) getObject(bucketName, objectName string, offset, length int64) (
bucketName: bucketName,
objectName: objectName,
customHeader: customHeader,
contentSHA256Bytes: emptySHA256,
})
if err != nil {
return nil, ObjectInfo{}, err
@ -645,6 +662,7 @@ func (c Client) getObject(bucketName, objectName string, offset, length int64) (
Region: resp.Header.Get("x-amz-bucket-region"),
}
}
// Get content-type.
contentType := strings.TrimSpace(resp.Header.Get("Content-Type"))
if contentType == "" {

1
vendor/github.com/minio/minio-go/api-get-policy.go generated vendored
View File

@ -81,6 +81,7 @@ func (c Client) getBucketPolicy(bucketName string) (policy.BucketAccessPolicy, e
resp, err := c.executeMethod("GET", requestMetadata{
bucketName: bucketName,
queryValues: urlValues,
contentSHA256Bytes: emptySHA256,
})
defer closeResponse(resp)

6
vendor/github.com/minio/minio-go/api-list.go generated vendored
View File

@ -35,7 +35,7 @@ import (
//
func (c Client) ListBuckets() ([]BucketInfo, error) {
// Execute GET on service.
resp, err := c.executeMethod("GET", requestMetadata{})
resp, err := c.executeMethod("GET", requestMetadata{contentSHA256Bytes: emptySHA256})
defer closeResponse(resp)
if err != nil {
return nil, err
@ -213,6 +213,7 @@ func (c Client) listObjectsV2Query(bucketName, objectPrefix, continuationToken s
resp, err := c.executeMethod("GET", requestMetadata{
bucketName: bucketName,
queryValues: urlValues,
contentSHA256Bytes: emptySHA256,
})
defer closeResponse(resp)
if err != nil {
@ -383,6 +384,7 @@ func (c Client) listObjectsQuery(bucketName, objectPrefix, objectMarker, delimit
resp, err := c.executeMethod("GET", requestMetadata{
bucketName: bucketName,
queryValues: urlValues,
contentSHA256Bytes: emptySHA256,
})
defer closeResponse(resp)
if err != nil {
@ -561,6 +563,7 @@ func (c Client) listMultipartUploadsQuery(bucketName, keyMarker, uploadIDMarker,
resp, err := c.executeMethod("GET", requestMetadata{
bucketName: bucketName,
queryValues: urlValues,
contentSHA256Bytes: emptySHA256,
})
defer closeResponse(resp)
if err != nil {
@ -679,6 +682,7 @@ func (c Client) listObjectPartsQuery(bucketName, objectName, uploadID string, pa
bucketName: bucketName,
objectName: objectName,
queryValues: urlValues,
contentSHA256Bytes: emptySHA256,
})
defer closeResponse(resp)
if err != nil {

2
vendor/github.com/minio/minio-go/api-notification.go generated vendored
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@ -49,6 +49,7 @@ func (c Client) getBucketNotification(bucketName string) (BucketNotification, er
resp, err := c.executeMethod("GET", requestMetadata{
bucketName: bucketName,
queryValues: urlValues,
contentSHA256Bytes: emptySHA256,
})
defer closeResponse(resp)
@ -172,6 +173,7 @@ func (c Client) ListenBucketNotification(bucketName, prefix, suffix string, even
resp, err := c.executeMethod("GET", requestMetadata{
bucketName: bucketName,
queryValues: urlValues,
contentSHA256Bytes: emptySHA256,
})
if err != nil {
continue

1
vendor/github.com/minio/minio-go/api-put-bucket.go generated vendored
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@ -274,6 +274,7 @@ func (c Client) removeBucketPolicy(bucketName string) error {
resp, err := c.executeMethod("DELETE", requestMetadata{
bucketName: bucketName,
queryValues: urlValues,
contentSHA256Bytes: emptySHA256,
})
defer closeResponse(resp)
if err != nil {

3
vendor/github.com/minio/minio-go/api-remove.go generated vendored
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@ -36,6 +36,7 @@ func (c Client) RemoveBucket(bucketName string) error {
// Execute DELETE on bucket.
resp, err := c.executeMethod("DELETE", requestMetadata{
bucketName: bucketName,
contentSHA256Bytes: emptySHA256,
})
defer closeResponse(resp)
if err != nil {
@ -66,6 +67,7 @@ func (c Client) RemoveObject(bucketName, objectName string) error {
resp, err := c.executeMethod("DELETE", requestMetadata{
bucketName: bucketName,
objectName: objectName,
contentSHA256Bytes: emptySHA256,
})
defer closeResponse(resp)
if err != nil {
@ -251,6 +253,7 @@ func (c Client) abortMultipartUpload(bucketName, objectName, uploadID string) er
bucketName: bucketName,
objectName: objectName,
queryValues: urlValues,
contentSHA256Bytes: emptySHA256,
})
defer closeResponse(resp)
if err != nil {

23
vendor/github.com/minio/minio-go/api-stat.go generated vendored
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@ -35,6 +35,7 @@ func (c Client) BucketExists(bucketName string) (bool, error) {
// Execute HEAD on bucketName.
resp, err := c.executeMethod("HEAD", requestMetadata{
bucketName: bucketName,
contentSHA256Bytes: emptySHA256,
})
defer closeResponse(resp)
if err != nil {
@ -85,11 +86,31 @@ func (c Client) StatObject(bucketName, objectName string) (ObjectInfo, error) {
if err := isValidObjectName(objectName); err != nil {
return ObjectInfo{}, err
}
reqHeaders := NewHeadReqHeaders()
return c.statObject(bucketName, objectName, reqHeaders)
}
// Lower level API for statObject supporting pre-conditions and range headers.
func (c Client) statObject(bucketName, objectName string, reqHeaders RequestHeaders) (ObjectInfo, error) {
// Input validation.
if err := isValidBucketName(bucketName); err != nil {
return ObjectInfo{}, err
}
if err := isValidObjectName(objectName); err != nil {
return ObjectInfo{}, err
}
customHeader := make(http.Header)
for k, v := range reqHeaders.Header {
customHeader[k] = v
}
// Execute HEAD on objectName.
resp, err := c.executeMethod("HEAD", requestMetadata{
bucketName: bucketName,
objectName: objectName,
contentSHA256Bytes: emptySHA256,
customHeader: customHeader,
})
defer closeResponse(resp)
if err != nil {
@ -122,6 +143,7 @@ func (c Client) StatObject(bucketName, objectName string) (ObjectInfo, error) {
}
}
}
// Parse Last-Modified has http time format.
date, err := time.Parse(http.TimeFormat, resp.Header.Get("Last-Modified"))
if err != nil {
@ -135,6 +157,7 @@ func (c Client) StatObject(bucketName, objectName string) (ObjectInfo, error) {
Region: resp.Header.Get("x-amz-bucket-region"),
}
}
// Fetch content type if any present.
contentType := strings.TrimSpace(resp.Header.Get("Content-Type"))
if contentType == "" {

18
vendor/github.com/minio/minio-go/api.go generated vendored
View File

@ -654,27 +654,23 @@ func (c Client) newRequest(method string, metadata requestMetadata) (req *http.R
return req, nil
} // Sign the request for all authenticated requests.
if c.signature.isV2() {
switch {
case c.signature.isV2():
// Add signature version '2' authorization header.
req = s3signer.SignV2(*req, c.accessKeyID, c.secretAccessKey)
} else if c.signature.isV4() || c.signature.isStreamingV4() &&
method != "PUT" {
case c.signature.isStreamingV4() && method == "PUT":
req = s3signer.StreamingSignV4(req, c.accessKeyID,
c.secretAccessKey, location, metadata.contentLength, time.Now().UTC())
default:
// Set sha256 sum for signature calculation only with signature version '4'.
shaHeader := unsignedPayload
if !c.secure {
if metadata.contentSHA256Bytes == nil {
shaHeader = hex.EncodeToString(sum256([]byte{}))
} else {
if len(metadata.contentSHA256Bytes) > 0 {
shaHeader = hex.EncodeToString(metadata.contentSHA256Bytes)
}
}
req.Header.Set("X-Amz-Content-Sha256", shaHeader)
// Add signature version '4' authorization header.
req = s3signer.SignV4(*req, c.accessKeyID, c.secretAccessKey, location)
} else if c.signature.isStreamingV4() {
req = s3signer.StreamingSignV4(req, c.accessKeyID,
c.secretAccessKey, location, metadata.contentLength, time.Now().UTC())
}
// Return request.

13
vendor/github.com/minio/minio-go/core.go generated vendored
View File

@ -98,3 +98,16 @@ func (c Core) GetBucketPolicy(bucket string) (policy.BucketAccessPolicy, error)
func (c Core) PutBucketPolicy(bucket string, bucketPolicy policy.BucketAccessPolicy) error {
return c.putBucketPolicy(bucket, bucketPolicy)
}
// GetObject is a lower level API implemented to support reading
// partial objects and also downloading objects with special conditions
// matching etag, modtime etc.
func (c Core) GetObject(bucketName, objectName string, reqHeaders RequestHeaders) (io.ReadCloser, ObjectInfo, error) {
return c.getObject(bucketName, objectName, reqHeaders)
}
// StatObject is a lower level API implemented to support special
// conditions matching etag, modtime on a request.
func (c Core) StatObject(bucketName, objectName string, reqHeaders RequestHeaders) (ObjectInfo, error) {
return c.statObject(bucketName, objectName, reqHeaders)
}

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vendor/github.com/minio/minio-go/my-testfile generated vendored Normal file
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105
vendor/github.com/minio/minio-go/request-headers.go generated vendored Normal file
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@ -0,0 +1,105 @@
/*
* Minio Go Library for Amazon S3 Compatible Cloud Storage (C) 2016 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 minio
import (
"fmt"
"net/http"
"time"
)
// RequestHeaders - implement methods for setting special
// request headers for GET, HEAD object operations.
// http://docs.aws.amazon.com/AmazonS3/latest/API/RESTObjectGET.html
type RequestHeaders struct {
http.Header
}
// NewGetReqHeaders - initializes a new request headers for GET request.
func NewGetReqHeaders() RequestHeaders {
return RequestHeaders{
Header: make(http.Header),
}
}
// NewHeadReqHeaders - initializes a new request headers for HEAD request.
func NewHeadReqHeaders() RequestHeaders {
return RequestHeaders{
Header: make(http.Header),
}
}
// SetMatchETag - set match etag.
func (c RequestHeaders) SetMatchETag(etag string) error {
if etag == "" {
return ErrInvalidArgument("ETag cannot be empty.")
}
c.Set("If-Match", etag)
return nil
}
// SetMatchETagExcept - set match etag except.
func (c RequestHeaders) SetMatchETagExcept(etag string) error {
if etag == "" {
return ErrInvalidArgument("ETag cannot be empty.")
}
c.Set("If-None-Match", etag)
return nil
}
// SetUnmodified - set unmodified time since.
func (c RequestHeaders) SetUnmodified(modTime time.Time) error {
if modTime.IsZero() {
return ErrInvalidArgument("Modified since cannot be empty.")
}
c.Set("If-Unmodified-Since", modTime.Format(http.TimeFormat))
return nil
}
// SetModified - set modified time since.
func (c RequestHeaders) SetModified(modTime time.Time) error {
if modTime.IsZero() {
return ErrInvalidArgument("Modified since cannot be empty.")
}
c.Set("If-Modified-Since", modTime.Format(http.TimeFormat))
return nil
}
// SetRange - set the start and end offset of the object to be read.
// See https://tools.ietf.org/html/rfc7233#section-3.1 for reference.
func (c RequestHeaders) SetRange(start, end int64) error {
switch {
case start <= 0 && end < 0:
// Read everything until the 'end'. `bytes=-N`
c.Set("Range", fmt.Sprintf("bytes=%d", end))
case start > 0 && end == 0:
// Read everything starting from offset 'start'. `bytes=N-`
c.Set("Range", fmt.Sprintf("bytes=%d-", start))
case start > 0 && end > 0 && end >= start:
// Read everything starting at 'start' till the 'end'. `bytes=N-M`
c.Set("Range", fmt.Sprintf("bytes=%d-%d", start, end))
case start == 0 && end == 0:
// Client attempting to read the whole file.
return nil
}
// All other cases such as
// bytes=-N-
// bytes=N-M where M < N
// These return error and are not supported.
return ErrInvalidArgument(fmt.Sprintf("Invalid range start and end specified bytes=%d-%d",
start, end))
}

2
vendor/github.com/minio/minio-go/signature-type.go generated vendored
View File

@ -27,6 +27,8 @@ const (
SignatureV4Streaming
)
var emptySHA256 = sum256(nil)
// isV2 - is signature SignatureV2?
func (s SignatureType) isV2() bool {
return s == SignatureV2

6
vendor/vendor.json vendored
View File

@ -216,10 +216,10 @@
"revisionTime": "2016-02-29T08:42:30-08:00"
},
{
"checksumSHA1": "rtVzxCyARW7zRG1jUf3K7o9vyt0=",
"checksumSHA1": "E0n14tprPsyG3s4MXxZmLrcaNm4=",
"path": "github.com/minio/minio-go",
"revision": "5297a818b482fa329b3dc1a3926e3c4c6fb5d459",
"revisionTime": "2017-04-26T18:23:05Z"
"revision": "fe31943bd4638093653a6a584dc1c6c6487e06c9",
"revisionTime": "2017-05-02T08:16:08Z"
},
{
"checksumSHA1": "lsxCcRcNUDxhQyO999SOdvKzzfM=",