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Copy pathgateway-common.go
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362 lines (315 loc) · 9.92 KB
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/*
* 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 (
"net/http"
"os"
"strings"
"github.com/minio/minio/cmd/logger"
"github.com/minio/minio/pkg/hash"
minio "github.com/minio/minio-go"
)
var (
// CanonicalizeETag provides canonicalizeETag function alias.
CanonicalizeETag = canonicalizeETag
// MustGetUUID function alias.
MustGetUUID = mustGetUUID
// CleanMetadataKeys provides cleanMetadataKeys function alias.
CleanMetadataKeys = cleanMetadataKeys
)
// StatInfo - alias for statInfo
type StatInfo struct {
statInfo
}
// AnonErrToObjectErr - converts standard http codes into meaningful object layer errors.
func AnonErrToObjectErr(statusCode int, params ...string) error {
bucket := ""
object := ""
if len(params) >= 1 {
bucket = params[0]
}
if len(params) == 2 {
object = params[1]
}
switch statusCode {
case http.StatusNotFound:
if object != "" {
return ObjectNotFound{bucket, object}
}
return BucketNotFound{Bucket: bucket}
case http.StatusBadRequest:
if object != "" {
return ObjectNameInvalid{bucket, object}
}
return BucketNameInvalid{Bucket: bucket}
case http.StatusForbidden:
fallthrough
case http.StatusUnauthorized:
return AllAccessDisabled{bucket, object}
}
return errUnexpected
}
// FromMinioClientMetadata converts minio metadata to map[string]string
func FromMinioClientMetadata(metadata map[string][]string) map[string]string {
mm := map[string]string{}
for k, v := range metadata {
mm[http.CanonicalHeaderKey(k)] = v[0]
}
return mm
}
// FromMinioClientObjectPart converts minio ObjectPart to PartInfo
func FromMinioClientObjectPart(op minio.ObjectPart) PartInfo {
return PartInfo{
Size: op.Size,
ETag: canonicalizeETag(op.ETag),
LastModified: op.LastModified,
PartNumber: op.PartNumber,
}
}
// FromMinioClientListPartsInfo converts minio ListObjectPartsResult to ListPartsInfo
func FromMinioClientListPartsInfo(lopr minio.ListObjectPartsResult) ListPartsInfo {
// Convert minio ObjectPart to PartInfo
fromMinioClientObjectParts := func(parts []minio.ObjectPart) []PartInfo {
toParts := make([]PartInfo, len(parts))
for i, part := range parts {
toParts[i] = FromMinioClientObjectPart(part)
}
return toParts
}
return ListPartsInfo{
UploadID: lopr.UploadID,
Bucket: lopr.Bucket,
Object: lopr.Key,
StorageClass: "",
PartNumberMarker: lopr.PartNumberMarker,
NextPartNumberMarker: lopr.NextPartNumberMarker,
MaxParts: lopr.MaxParts,
IsTruncated: lopr.IsTruncated,
EncodingType: lopr.EncodingType,
Parts: fromMinioClientObjectParts(lopr.ObjectParts),
}
}
// FromMinioClientListMultipartsInfo converts minio ListMultipartUploadsResult to ListMultipartsInfo
func FromMinioClientListMultipartsInfo(lmur minio.ListMultipartUploadsResult) ListMultipartsInfo {
uploads := make([]MultipartInfo, len(lmur.Uploads))
for i, um := range lmur.Uploads {
uploads[i] = MultipartInfo{
Object: um.Key,
UploadID: um.UploadID,
Initiated: um.Initiated,
}
}
commonPrefixes := make([]string, len(lmur.CommonPrefixes))
for i, cp := range lmur.CommonPrefixes {
commonPrefixes[i] = cp.Prefix
}
return ListMultipartsInfo{
KeyMarker: lmur.KeyMarker,
UploadIDMarker: lmur.UploadIDMarker,
NextKeyMarker: lmur.NextKeyMarker,
NextUploadIDMarker: lmur.NextUploadIDMarker,
MaxUploads: int(lmur.MaxUploads),
IsTruncated: lmur.IsTruncated,
Uploads: uploads,
Prefix: lmur.Prefix,
Delimiter: lmur.Delimiter,
CommonPrefixes: commonPrefixes,
EncodingType: lmur.EncodingType,
}
}
// FromMinioClientObjectInfo converts minio ObjectInfo to gateway ObjectInfo
func FromMinioClientObjectInfo(bucket string, oi minio.ObjectInfo) ObjectInfo {
userDefined := FromMinioClientMetadata(oi.Metadata)
userDefined["Content-Type"] = oi.ContentType
return ObjectInfo{
Bucket: bucket,
Name: oi.Key,
ModTime: oi.LastModified,
Size: oi.Size,
ETag: canonicalizeETag(oi.ETag),
UserDefined: userDefined,
ContentType: oi.ContentType,
ContentEncoding: oi.Metadata.Get("Content-Encoding"),
StorageClass: oi.StorageClass,
Expires: oi.Expires,
}
}
// FromMinioClientListBucketV2Result converts minio ListBucketResult to ListObjectsInfo
func FromMinioClientListBucketV2Result(bucket string, result minio.ListBucketV2Result) ListObjectsV2Info {
objects := make([]ObjectInfo, len(result.Contents))
for i, oi := range result.Contents {
objects[i] = FromMinioClientObjectInfo(bucket, oi)
}
prefixes := make([]string, len(result.CommonPrefixes))
for i, p := range result.CommonPrefixes {
prefixes[i] = p.Prefix
}
return ListObjectsV2Info{
IsTruncated: result.IsTruncated,
Prefixes: prefixes,
Objects: objects,
ContinuationToken: result.ContinuationToken,
NextContinuationToken: result.NextContinuationToken,
}
}
// FromMinioClientListBucketResult converts minio ListBucketResult to ListObjectsInfo
func FromMinioClientListBucketResult(bucket string, result minio.ListBucketResult) ListObjectsInfo {
objects := make([]ObjectInfo, len(result.Contents))
for i, oi := range result.Contents {
objects[i] = FromMinioClientObjectInfo(bucket, oi)
}
prefixes := make([]string, len(result.CommonPrefixes))
for i, p := range result.CommonPrefixes {
prefixes[i] = p.Prefix
}
return ListObjectsInfo{
IsTruncated: result.IsTruncated,
NextMarker: result.NextMarker,
Prefixes: prefixes,
Objects: objects,
}
}
// FromMinioClientListBucketResultToV2Info converts minio ListBucketResult to ListObjectsV2Info
func FromMinioClientListBucketResultToV2Info(bucket string, result minio.ListBucketResult) ListObjectsV2Info {
objects := make([]ObjectInfo, len(result.Contents))
for i, oi := range result.Contents {
objects[i] = FromMinioClientObjectInfo(bucket, oi)
}
prefixes := make([]string, len(result.CommonPrefixes))
for i, p := range result.CommonPrefixes {
prefixes[i] = p.Prefix
}
return ListObjectsV2Info{
IsTruncated: result.IsTruncated,
Prefixes: prefixes,
Objects: objects,
ContinuationToken: result.Marker,
NextContinuationToken: result.NextMarker,
}
}
// ToMinioClientObjectInfoMetadata convertes metadata to map[string][]string
func ToMinioClientObjectInfoMetadata(metadata map[string]string) map[string][]string {
mm := make(map[string][]string, len(metadata))
for k, v := range metadata {
mm[http.CanonicalHeaderKey(k)] = []string{v}
}
return mm
}
// ToMinioClientMetadata converts metadata to map[string]string
func ToMinioClientMetadata(metadata map[string]string) map[string]string {
mm := make(map[string]string)
for k, v := range metadata {
mm[http.CanonicalHeaderKey(k)] = v
}
return mm
}
// ToMinioClientCompletePart converts CompletePart to minio CompletePart
func ToMinioClientCompletePart(part CompletePart) minio.CompletePart {
return minio.CompletePart{
ETag: part.ETag,
PartNumber: part.PartNumber,
}
}
// ToMinioClientCompleteParts converts []CompletePart to minio []CompletePart
func ToMinioClientCompleteParts(parts []CompletePart) []minio.CompletePart {
mparts := make([]minio.CompletePart, len(parts))
for i, part := range parts {
mparts[i] = ToMinioClientCompletePart(part)
}
return mparts
}
// ErrorRespToObjectError converts Minio errors to minio object layer errors.
func ErrorRespToObjectError(err error, params ...string) error {
if err == nil {
return nil
}
bucket := ""
object := ""
if len(params) >= 1 {
bucket = params[0]
}
if len(params) == 2 {
object = params[1]
}
if isNetworkOrHostDown(err) {
return BackendDown{}
}
minioErr, ok := err.(minio.ErrorResponse)
if !ok {
// We don't interpret non Minio errors. As minio errors will
// have StatusCode to help to convert to object errors.
return err
}
switch minioErr.Code {
case "BucketAlreadyOwnedByYou":
err = BucketAlreadyOwnedByYou{}
case "BucketNotEmpty":
err = BucketNotEmpty{}
case "NoSuchBucketPolicy":
err = BucketPolicyNotFound{}
case "InvalidBucketName":
err = BucketNameInvalid{Bucket: bucket}
case "InvalidPart":
err = InvalidPart{}
case "NoSuchBucket":
err = BucketNotFound{Bucket: bucket}
case "NoSuchKey":
if object != "" {
err = ObjectNotFound{Bucket: bucket, Object: object}
} else {
err = BucketNotFound{Bucket: bucket}
}
case "XMinioInvalidObjectName":
err = ObjectNameInvalid{}
case "AccessDenied":
err = PrefixAccessDenied{
Bucket: bucket,
Object: object,
}
case "XAmzContentSHA256Mismatch":
err = hash.SHA256Mismatch{}
case "NoSuchUpload":
err = InvalidUploadID{}
case "EntityTooSmall":
err = PartTooSmall{}
}
return err
}
// parse gateway sse env variable
func parseGatewaySSE(s string) (gatewaySSE, error) {
l := strings.Split(s, ";")
var gwSlice = make([]string, 0)
for _, val := range l {
v := strings.ToUpper(val)
if v == gatewaySSES3 || v == gatewaySSEC {
gwSlice = append(gwSlice, v)
continue
}
return nil, uiErrInvalidGWSSEValue(nil).Msg("gateway SSE cannot be (%s) ", v)
}
return gatewaySSE(gwSlice), nil
}
// handle gateway env vars
func handleGatewayEnvVars() {
gwsseVal, ok := os.LookupEnv("MINIO_GATEWAY_SSE")
if ok {
var err error
GlobalGatewaySSE, err = parseGatewaySSE(gwsseVal)
if err != nil {
logger.Fatal(err, "Unable to parse MINIO_GATEWAY_SSE value (`%s`)", gwsseVal)
}
}
}