You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
506 lines
15 KiB
506 lines
15 KiB
/*
|
|
* MinIO Cloud Storage, (C) 2018-2019 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 (
|
|
"bufio"
|
|
"bytes"
|
|
"context"
|
|
"crypto/tls"
|
|
"encoding/gob"
|
|
"encoding/hex"
|
|
"io"
|
|
"io/ioutil"
|
|
"net/url"
|
|
"path"
|
|
"strconv"
|
|
"strings"
|
|
"sync/atomic"
|
|
|
|
"github.com/minio/minio/cmd/http"
|
|
"github.com/minio/minio/cmd/logger"
|
|
"github.com/minio/minio/cmd/rest"
|
|
xnet "github.com/minio/minio/pkg/net"
|
|
)
|
|
|
|
func isNetworkError(err error) bool {
|
|
if err == nil {
|
|
return false
|
|
}
|
|
if nerr, ok := err.(*rest.NetworkError); ok {
|
|
return xnet.IsNetworkOrHostDown(nerr.Err)
|
|
}
|
|
return false
|
|
}
|
|
|
|
// Converts rpc.ServerError to underlying error. This function is
|
|
// written so that the storageAPI errors are consistent across network
|
|
// disks as well.
|
|
func toStorageErr(err error) error {
|
|
if err == nil {
|
|
return nil
|
|
}
|
|
|
|
if isNetworkError(err) {
|
|
return errDiskNotFound
|
|
}
|
|
|
|
switch err.Error() {
|
|
case errFaultyDisk.Error():
|
|
return errFaultyDisk
|
|
case errFileCorrupt.Error():
|
|
return errFileCorrupt
|
|
case errUnexpected.Error():
|
|
return errUnexpected
|
|
case errDiskFull.Error():
|
|
return errDiskFull
|
|
case errVolumeNotFound.Error():
|
|
return errVolumeNotFound
|
|
case errVolumeExists.Error():
|
|
return errVolumeExists
|
|
case errFileNotFound.Error():
|
|
return errFileNotFound
|
|
case errFileNameTooLong.Error():
|
|
return errFileNameTooLong
|
|
case errFileAccessDenied.Error():
|
|
return errFileAccessDenied
|
|
case errIsNotRegular.Error():
|
|
return errIsNotRegular
|
|
case errVolumeNotEmpty.Error():
|
|
return errVolumeNotEmpty
|
|
case errVolumeAccessDenied.Error():
|
|
return errVolumeAccessDenied
|
|
case errCorruptedFormat.Error():
|
|
return errCorruptedFormat
|
|
case errUnformattedDisk.Error():
|
|
return errUnformattedDisk
|
|
case errInvalidAccessKeyID.Error():
|
|
return errInvalidAccessKeyID
|
|
case errAuthentication.Error():
|
|
return errAuthentication
|
|
case errRPCAPIVersionUnsupported.Error():
|
|
return errRPCAPIVersionUnsupported
|
|
case errServerTimeMismatch.Error():
|
|
return errServerTimeMismatch
|
|
case io.EOF.Error():
|
|
return io.EOF
|
|
case io.ErrUnexpectedEOF.Error():
|
|
return io.ErrUnexpectedEOF
|
|
case errDiskStale.Error():
|
|
return errDiskNotFound
|
|
}
|
|
return err
|
|
}
|
|
|
|
// Abstracts a remote disk.
|
|
type storageRESTClient struct {
|
|
endpoint Endpoint
|
|
restClient *rest.Client
|
|
connected int32
|
|
lastError error
|
|
diskID string
|
|
}
|
|
|
|
// Wrapper to restClient.Call to handle network errors, in case of network error the connection is makred disconnected
|
|
// permanently. The only way to restore the storage connection is at the xl-sets layer by xlsets.monitorAndConnectEndpoints()
|
|
// after verifying format.json
|
|
func (client *storageRESTClient) call(method string, values url.Values, body io.Reader, length int64) (respBody io.ReadCloser, err error) {
|
|
if !client.IsOnline() {
|
|
return nil, errDiskNotFound
|
|
}
|
|
if values == nil {
|
|
values = make(url.Values)
|
|
}
|
|
values.Set(storageRESTDiskID, client.diskID)
|
|
respBody, err = client.restClient.Call(method, values, body, length)
|
|
if err == nil {
|
|
return respBody, nil
|
|
}
|
|
client.lastError = err
|
|
if isNetworkError(err) || err.Error() == errDiskStale.Error() {
|
|
atomic.StoreInt32(&client.connected, 0)
|
|
}
|
|
|
|
return nil, toStorageErr(err)
|
|
}
|
|
|
|
// Stringer provides a canonicalized representation of network device.
|
|
func (client *storageRESTClient) String() string {
|
|
return client.endpoint.String()
|
|
}
|
|
|
|
// IsOnline - returns whether RPC client failed to connect or not.
|
|
func (client *storageRESTClient) IsOnline() bool {
|
|
return atomic.LoadInt32(&client.connected) == 1
|
|
}
|
|
|
|
func (client *storageRESTClient) CrawlAndGetDataUsage(endCh <-chan struct{}) (DataUsageInfo, error) {
|
|
respBody, err := client.call(storageRESTMethodCrawlAndGetDataUsage, nil, nil, -1)
|
|
defer http.DrainBody(respBody)
|
|
if err != nil {
|
|
return DataUsageInfo{}, err
|
|
}
|
|
reader := bufio.NewReader(respBody)
|
|
for {
|
|
b, err := reader.ReadByte()
|
|
if err != nil {
|
|
return DataUsageInfo{}, err
|
|
}
|
|
if b != ' ' {
|
|
reader.UnreadByte()
|
|
break
|
|
}
|
|
}
|
|
var usageInfo DataUsageInfo
|
|
err = gob.NewDecoder(reader).Decode(&usageInfo)
|
|
return usageInfo, err
|
|
}
|
|
|
|
// LastError - returns the network error if any.
|
|
func (client *storageRESTClient) LastError() error {
|
|
return client.lastError
|
|
}
|
|
|
|
func (client *storageRESTClient) SetDiskID(id string) {
|
|
client.diskID = id
|
|
}
|
|
|
|
// DiskInfo - fetch disk information for a remote disk.
|
|
func (client *storageRESTClient) DiskInfo() (info DiskInfo, err error) {
|
|
respBody, err := client.call(storageRESTMethodDiskInfo, nil, nil, -1)
|
|
if err != nil {
|
|
return
|
|
}
|
|
defer http.DrainBody(respBody)
|
|
err = gob.NewDecoder(respBody).Decode(&info)
|
|
return info, err
|
|
}
|
|
|
|
// MakeVolBulk - create multiple volumes in a bulk operation.
|
|
func (client *storageRESTClient) MakeVolBulk(volumes ...string) (err error) {
|
|
values := make(url.Values)
|
|
values.Set(storageRESTVolumes, strings.Join(volumes, ","))
|
|
respBody, err := client.call(storageRESTMethodMakeVolBulk, values, nil, -1)
|
|
defer http.DrainBody(respBody)
|
|
return err
|
|
}
|
|
|
|
// MakeVol - create a volume on a remote disk.
|
|
func (client *storageRESTClient) MakeVol(volume string) (err error) {
|
|
values := make(url.Values)
|
|
values.Set(storageRESTVolume, volume)
|
|
respBody, err := client.call(storageRESTMethodMakeVol, values, nil, -1)
|
|
defer http.DrainBody(respBody)
|
|
return err
|
|
}
|
|
|
|
// ListVols - List all volumes on a remote disk.
|
|
func (client *storageRESTClient) ListVols() (volinfo []VolInfo, err error) {
|
|
respBody, err := client.call(storageRESTMethodListVols, nil, nil, -1)
|
|
if err != nil {
|
|
return
|
|
}
|
|
defer http.DrainBody(respBody)
|
|
err = gob.NewDecoder(respBody).Decode(&volinfo)
|
|
return volinfo, err
|
|
}
|
|
|
|
// StatVol - get volume info over the network.
|
|
func (client *storageRESTClient) StatVol(volume string) (volInfo VolInfo, err error) {
|
|
values := make(url.Values)
|
|
values.Set(storageRESTVolume, volume)
|
|
respBody, err := client.call(storageRESTMethodStatVol, values, nil, -1)
|
|
if err != nil {
|
|
return
|
|
}
|
|
defer http.DrainBody(respBody)
|
|
err = gob.NewDecoder(respBody).Decode(&volInfo)
|
|
return volInfo, err
|
|
}
|
|
|
|
// DeleteVol - Deletes a volume over the network.
|
|
func (client *storageRESTClient) DeleteVol(volume string) (err error) {
|
|
values := make(url.Values)
|
|
values.Set(storageRESTVolume, volume)
|
|
respBody, err := client.call(storageRESTMethodDeleteVol, values, nil, -1)
|
|
defer http.DrainBody(respBody)
|
|
return err
|
|
}
|
|
|
|
// AppendFile - append to a file.
|
|
func (client *storageRESTClient) AppendFile(volume, path string, buffer []byte) error {
|
|
values := make(url.Values)
|
|
values.Set(storageRESTVolume, volume)
|
|
values.Set(storageRESTFilePath, path)
|
|
reader := bytes.NewBuffer(buffer)
|
|
respBody, err := client.call(storageRESTMethodAppendFile, values, reader, -1)
|
|
defer http.DrainBody(respBody)
|
|
return err
|
|
}
|
|
|
|
func (client *storageRESTClient) CreateFile(volume, path string, length int64, r io.Reader) error {
|
|
values := make(url.Values)
|
|
values.Set(storageRESTVolume, volume)
|
|
values.Set(storageRESTFilePath, path)
|
|
values.Set(storageRESTLength, strconv.Itoa(int(length)))
|
|
respBody, err := client.call(storageRESTMethodCreateFile, values, ioutil.NopCloser(r), length)
|
|
defer http.DrainBody(respBody)
|
|
return err
|
|
}
|
|
|
|
// WriteAll - write all data to a file.
|
|
func (client *storageRESTClient) WriteAll(volume, path string, reader io.Reader) error {
|
|
values := make(url.Values)
|
|
values.Set(storageRESTVolume, volume)
|
|
values.Set(storageRESTFilePath, path)
|
|
respBody, err := client.call(storageRESTMethodWriteAll, values, reader, -1)
|
|
defer http.DrainBody(respBody)
|
|
return err
|
|
}
|
|
|
|
// StatFile - stat a file.
|
|
func (client *storageRESTClient) StatFile(volume, path string) (info FileInfo, err error) {
|
|
values := make(url.Values)
|
|
values.Set(storageRESTVolume, volume)
|
|
values.Set(storageRESTFilePath, path)
|
|
respBody, err := client.call(storageRESTMethodStatFile, values, nil, -1)
|
|
if err != nil {
|
|
return info, err
|
|
}
|
|
defer http.DrainBody(respBody)
|
|
err = gob.NewDecoder(respBody).Decode(&info)
|
|
return info, err
|
|
}
|
|
|
|
// ReadAll - reads all contents of a file.
|
|
func (client *storageRESTClient) ReadAll(volume, path string) ([]byte, error) {
|
|
values := make(url.Values)
|
|
values.Set(storageRESTVolume, volume)
|
|
values.Set(storageRESTFilePath, path)
|
|
respBody, err := client.call(storageRESTMethodReadAll, values, nil, -1)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
defer http.DrainBody(respBody)
|
|
return ioutil.ReadAll(respBody)
|
|
}
|
|
|
|
// ReadFileStream - returns a reader for the requested file.
|
|
func (client *storageRESTClient) ReadFileStream(volume, path string, offset, length int64) (io.ReadCloser, error) {
|
|
values := make(url.Values)
|
|
values.Set(storageRESTVolume, volume)
|
|
values.Set(storageRESTFilePath, path)
|
|
values.Set(storageRESTOffset, strconv.Itoa(int(offset)))
|
|
values.Set(storageRESTLength, strconv.Itoa(int(length)))
|
|
respBody, err := client.call(storageRESTMethodReadFileStream, values, nil, -1)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return respBody, nil
|
|
}
|
|
|
|
// ReadFile - reads section of a file.
|
|
func (client *storageRESTClient) ReadFile(volume, path string, offset int64, buffer []byte, verifier *BitrotVerifier) (int64, error) {
|
|
values := make(url.Values)
|
|
values.Set(storageRESTVolume, volume)
|
|
values.Set(storageRESTFilePath, path)
|
|
values.Set(storageRESTOffset, strconv.Itoa(int(offset)))
|
|
values.Set(storageRESTLength, strconv.Itoa(len(buffer)))
|
|
if verifier != nil {
|
|
values.Set(storageRESTBitrotAlgo, verifier.algorithm.String())
|
|
values.Set(storageRESTBitrotHash, hex.EncodeToString(verifier.sum))
|
|
} else {
|
|
values.Set(storageRESTBitrotAlgo, "")
|
|
values.Set(storageRESTBitrotHash, "")
|
|
}
|
|
respBody, err := client.call(storageRESTMethodReadFile, values, nil, -1)
|
|
if err != nil {
|
|
return 0, err
|
|
}
|
|
defer http.DrainBody(respBody)
|
|
n, err := io.ReadFull(respBody, buffer)
|
|
return int64(n), err
|
|
}
|
|
|
|
func (client *storageRESTClient) Walk(volume, dirPath, marker string, recursive bool, leafFile string,
|
|
readMetadataFn readMetadataFunc, endWalkCh chan struct{}) (chan FileInfo, error) {
|
|
values := make(url.Values)
|
|
values.Set(storageRESTVolume, volume)
|
|
values.Set(storageRESTDirPath, dirPath)
|
|
values.Set(storageRESTMarkerPath, marker)
|
|
values.Set(storageRESTRecursive, strconv.FormatBool(recursive))
|
|
values.Set(storageRESTLeafFile, leafFile)
|
|
respBody, err := client.call(storageRESTMethodWalk, values, nil, -1)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
ch := make(chan FileInfo)
|
|
go func() {
|
|
defer close(ch)
|
|
defer http.DrainBody(respBody)
|
|
|
|
decoder := gob.NewDecoder(respBody)
|
|
for {
|
|
var fi FileInfo
|
|
if gerr := decoder.Decode(&fi); gerr != nil {
|
|
// Upon error return
|
|
return
|
|
}
|
|
select {
|
|
case ch <- fi:
|
|
case <-endWalkCh:
|
|
return
|
|
}
|
|
|
|
}
|
|
}()
|
|
|
|
return ch, nil
|
|
}
|
|
|
|
// ListDir - lists a directory.
|
|
func (client *storageRESTClient) ListDir(volume, dirPath string, count int, leafFile string) (entries []string, err error) {
|
|
values := make(url.Values)
|
|
values.Set(storageRESTVolume, volume)
|
|
values.Set(storageRESTDirPath, dirPath)
|
|
values.Set(storageRESTCount, strconv.Itoa(count))
|
|
values.Set(storageRESTLeafFile, leafFile)
|
|
respBody, err := client.call(storageRESTMethodListDir, values, nil, -1)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
defer http.DrainBody(respBody)
|
|
err = gob.NewDecoder(respBody).Decode(&entries)
|
|
return entries, err
|
|
}
|
|
|
|
// DeleteFile - deletes a file.
|
|
func (client *storageRESTClient) DeleteFile(volume, path string) error {
|
|
values := make(url.Values)
|
|
values.Set(storageRESTVolume, volume)
|
|
values.Set(storageRESTFilePath, path)
|
|
respBody, err := client.call(storageRESTMethodDeleteFile, values, nil, -1)
|
|
defer http.DrainBody(respBody)
|
|
return err
|
|
}
|
|
|
|
// DeleteFileBulk - deletes files in bulk.
|
|
func (client *storageRESTClient) DeleteFileBulk(volume string, paths []string) (errs []error, err error) {
|
|
if len(paths) == 0 {
|
|
return errs, err
|
|
}
|
|
values := make(url.Values)
|
|
values.Set(storageRESTVolume, volume)
|
|
for _, path := range paths {
|
|
values.Add(storageRESTFilePath, path)
|
|
}
|
|
respBody, err := client.call(storageRESTMethodDeleteFileBulk, values, nil, -1)
|
|
defer http.DrainBody(respBody)
|
|
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
dErrResp := &DeleteFileBulkErrsResp{}
|
|
if err = gob.NewDecoder(respBody).Decode(dErrResp); err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
for _, dErr := range dErrResp.Errs {
|
|
errs = append(errs, toStorageErr(dErr))
|
|
}
|
|
|
|
return errs, nil
|
|
}
|
|
|
|
// RenameFile - renames a file.
|
|
func (client *storageRESTClient) RenameFile(srcVolume, srcPath, dstVolume, dstPath string) (err error) {
|
|
values := make(url.Values)
|
|
values.Set(storageRESTSrcVolume, srcVolume)
|
|
values.Set(storageRESTSrcPath, srcPath)
|
|
values.Set(storageRESTDstVolume, dstVolume)
|
|
values.Set(storageRESTDstPath, dstPath)
|
|
respBody, err := client.call(storageRESTMethodRenameFile, values, nil, -1)
|
|
defer http.DrainBody(respBody)
|
|
return err
|
|
}
|
|
|
|
func (client *storageRESTClient) VerifyFile(volume, path string, size int64, algo BitrotAlgorithm, sum []byte, shardSize int64) error {
|
|
values := make(url.Values)
|
|
values.Set(storageRESTVolume, volume)
|
|
values.Set(storageRESTFilePath, path)
|
|
values.Set(storageRESTBitrotAlgo, algo.String())
|
|
values.Set(storageRESTLength, strconv.FormatInt(size, 10))
|
|
values.Set(storageRESTShardSize, strconv.Itoa(int(shardSize)))
|
|
values.Set(storageRESTBitrotHash, hex.EncodeToString(sum))
|
|
|
|
respBody, err := client.call(storageRESTMethodVerifyFile, values, nil, -1)
|
|
defer http.DrainBody(respBody)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
reader := bufio.NewReader(respBody)
|
|
for {
|
|
b, err := reader.ReadByte()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
if b != ' ' {
|
|
reader.UnreadByte()
|
|
break
|
|
}
|
|
}
|
|
verifyResp := &VerifyFileResp{}
|
|
if err = gob.NewDecoder(reader).Decode(verifyResp); err != nil {
|
|
return err
|
|
}
|
|
return toStorageErr(verifyResp.Err)
|
|
}
|
|
|
|
// Close - marks the client as closed.
|
|
func (client *storageRESTClient) Close() error {
|
|
atomic.StoreInt32(&client.connected, 0)
|
|
client.restClient.Close()
|
|
return nil
|
|
}
|
|
|
|
// Returns a storage rest client.
|
|
func newStorageRESTClient(endpoint Endpoint) *storageRESTClient {
|
|
serverURL := &url.URL{
|
|
Scheme: endpoint.Scheme,
|
|
Host: endpoint.Host,
|
|
Path: path.Join(storageRESTPrefix, endpoint.Path, storageRESTVersion),
|
|
}
|
|
|
|
var tlsConfig *tls.Config
|
|
if globalIsSSL {
|
|
tlsConfig = &tls.Config{
|
|
ServerName: endpoint.Hostname(),
|
|
RootCAs: globalRootCAs,
|
|
NextProtos: []string{"http/1.1"}, // Force http1.1
|
|
}
|
|
}
|
|
|
|
trFn := newCustomHTTPTransport(tlsConfig, rest.DefaultRESTTimeout, rest.DefaultRESTTimeout)
|
|
restClient, err := rest.NewClient(serverURL, trFn, newAuthToken)
|
|
if err != nil {
|
|
logger.LogIf(context.Background(), err)
|
|
return &storageRESTClient{endpoint: endpoint, restClient: restClient, connected: 0}
|
|
}
|
|
return &storageRESTClient{endpoint: endpoint, restClient: restClient, connected: 1}
|
|
}
|
|
|