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storage-rest-client.go
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storage-rest-client.go
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// Copyright (c) 2015-2021 MinIO, Inc.
//
// This file is part of MinIO Object Storage stack
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package cmd
import (
"bytes"
"context"
"encoding/gob"
"encoding/hex"
"errors"
"fmt"
"io"
"net/http"
"net/url"
"path"
"strconv"
"strings"
"sync"
"time"
"github.com/minio/madmin-go"
xnet "github.com/minio/pkg/net"
xhttp "github.com/nitrictech/minio/internal/http"
"github.com/nitrictech/minio/internal/logger"
"github.com/nitrictech/minio/internal/rest"
xbufio "github.com/philhofer/fwd"
"github.com/tinylib/msgp/msgp"
)
func isNetworkError(err error) bool {
if err == nil {
return false
}
if nerr, ok := err.(*rest.NetworkError); ok {
return xnet.IsNetworkOrHostDown(nerr.Err, false)
}
// A peer node can be in shut down phase and proactively
// return 503 server closed error,consider it as an offline node
return err.Error() == http.ErrServerClosed.Error()
}
// Converts network error to storageErr. This function is
// written so that the storageAPI errors are consistent
// across network disks.
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 errFileVersionNotFound.Error():
return errFileVersionNotFound
case errFileNameTooLong.Error():
return errFileNameTooLong
case errFileAccessDenied.Error():
return errFileAccessDenied
case errPathNotFound.Error():
return errPathNotFound
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
case errDiskNotFound.Error():
return errDiskNotFound
}
return err
}
// Abstracts a remote disk.
type storageRESTClient struct {
endpoint Endpoint
restClient *rest.Client
diskID string
// Indexes, will be -1 until assigned a set.
poolIndex, setIndex, diskIndex int
diskInfoCache timedValue
}
// Retrieve location indexes.
func (client *storageRESTClient) GetDiskLoc() (poolIdx, setIdx, diskIdx int) {
return client.poolIndex, client.setIndex, client.diskIndex
}
// Set location indexes.
func (client *storageRESTClient) SetDiskLoc(poolIdx, setIdx, diskIdx int) {
client.poolIndex = poolIdx
client.setIndex = setIdx
client.diskIndex = diskIdx
}
// 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(ctx context.Context, method string, values url.Values, body io.Reader, length int64) (io.ReadCloser, error) {
if values == nil {
values = make(url.Values)
}
values.Set(storageRESTDiskID, client.diskID)
respBody, err := client.restClient.Call(ctx, method, values, body, length)
if err == nil {
return respBody, nil
}
err = toStorageErr(err)
return nil, 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 client.restClient.IsOnline()
}
// LastConn - returns when the disk is seen to be connected the last time
func (client *storageRESTClient) LastConn() time.Time {
return client.restClient.LastConn()
}
func (client *storageRESTClient) IsLocal() bool {
return false
}
func (client *storageRESTClient) Hostname() string {
return client.endpoint.Host
}
func (client *storageRESTClient) Endpoint() Endpoint {
return client.endpoint
}
func (client *storageRESTClient) Healing() *healingTracker {
// This call is not implemented for remote client on purpose.
// healing tracker is always for local disks.
return nil
}
func (client *storageRESTClient) NSScanner(ctx context.Context, cache dataUsageCache, updates chan<- dataUsageEntry, scanMode madmin.HealScanMode) (dataUsageCache, error) {
defer close(updates)
pr, pw := io.Pipe()
go func() {
pw.CloseWithError(cache.serializeTo(pw))
}()
vals := make(url.Values)
vals.Set(storageRESTScanMode, strconv.Itoa(int(scanMode)))
respBody, err := client.call(ctx, storageRESTMethodNSScanner, vals, pr, -1)
defer xhttp.DrainBody(respBody)
pr.CloseWithError(err)
if err != nil {
return cache, err
}
rr, rw := io.Pipe()
go func() {
rw.CloseWithError(waitForHTTPStream(respBody, rw))
}()
ms := msgp.NewReader(rr)
for {
// Read whether it is an update.
upd, err := ms.ReadBool()
if err != nil {
rr.CloseWithError(err)
return cache, err
}
if !upd {
// No more updates... New cache follows.
break
}
var update dataUsageEntry
err = update.DecodeMsg(ms)
if err != nil || err == io.EOF {
rr.CloseWithError(err)
return cache, err
}
select {
case <-ctx.Done():
case updates <- update:
}
}
var newCache dataUsageCache
err = newCache.DecodeMsg(ms)
rr.CloseWithError(err)
if err == io.EOF {
err = nil
}
return newCache, err
}
func (client *storageRESTClient) GetDiskID() (string, error) {
// This call should never be over the network, this is always
// a cached value - caller should make sure to use this
// function on a fresh disk or make sure to look at the error
// from a different networked call to validate the GetDiskID()
return client.diskID, nil
}
func (client *storageRESTClient) SetDiskID(id string) {
client.diskID = id
}
// DiskInfo - fetch disk information for a remote disk.
func (client *storageRESTClient) DiskInfo(ctx context.Context) (info DiskInfo, err error) {
if !client.IsOnline() {
// make sure to check if the disk is offline, since the underlying
// value is cached we should attempt to invalidate it if such calls
// were attempted. This can lead to false success under certain conditions
// - this change attempts to avoid stale information if the underlying
// transport is already down.
return info, errDiskNotFound
}
client.diskInfoCache.Once.Do(func() {
client.diskInfoCache.TTL = time.Second
client.diskInfoCache.Update = func() (interface{}, error) {
var info DiskInfo
ctx, cancel := context.WithTimeout(ctx, 5*time.Second)
defer cancel()
respBody, err := client.call(ctx, storageRESTMethodDiskInfo, nil, nil, -1)
if err != nil {
return info, err
}
defer xhttp.DrainBody(respBody)
if err = msgp.Decode(respBody, &info); err != nil {
return info, err
}
if info.Error != "" {
return info, toStorageErr(errors.New(info.Error))
}
return info, nil
}
})
val, err := client.diskInfoCache.Get()
if val != nil {
return val.(DiskInfo), err
}
return info, err
}
// MakeVolBulk - create multiple volumes in a bulk operation.
func (client *storageRESTClient) MakeVolBulk(ctx context.Context, volumes ...string) (err error) {
values := make(url.Values)
values.Set(storageRESTVolumes, strings.Join(volumes, ","))
respBody, err := client.call(ctx, storageRESTMethodMakeVolBulk, values, nil, -1)
defer xhttp.DrainBody(respBody)
return err
}
// MakeVol - create a volume on a remote disk.
func (client *storageRESTClient) MakeVol(ctx context.Context, volume string) (err error) {
values := make(url.Values)
values.Set(storageRESTVolume, volume)
respBody, err := client.call(ctx, storageRESTMethodMakeVol, values, nil, -1)
defer xhttp.DrainBody(respBody)
return err
}
// ListVols - List all volumes on a remote disk.
func (client *storageRESTClient) ListVols(ctx context.Context) (vols []VolInfo, err error) {
respBody, err := client.call(ctx, storageRESTMethodListVols, nil, nil, -1)
if err != nil {
return
}
defer xhttp.DrainBody(respBody)
vinfos := VolsInfo(vols)
err = msgp.Decode(respBody, &vinfos)
return vinfos, err
}
// StatVol - get volume info over the network.
func (client *storageRESTClient) StatVol(ctx context.Context, volume string) (vol VolInfo, err error) {
values := make(url.Values)
values.Set(storageRESTVolume, volume)
respBody, err := client.call(ctx, storageRESTMethodStatVol, values, nil, -1)
if err != nil {
return
}
defer xhttp.DrainBody(respBody)
err = msgp.Decode(respBody, &vol)
return vol, err
}
// DeleteVol - Deletes a volume over the network.
func (client *storageRESTClient) DeleteVol(ctx context.Context, volume string, forceDelete bool) (err error) {
values := make(url.Values)
values.Set(storageRESTVolume, volume)
if forceDelete {
values.Set(storageRESTForceDelete, "true")
}
respBody, err := client.call(ctx, storageRESTMethodDeleteVol, values, nil, -1)
defer xhttp.DrainBody(respBody)
return err
}
// AppendFile - append to a file.
func (client *storageRESTClient) AppendFile(ctx context.Context, volume string, path string, buf []byte) error {
values := make(url.Values)
values.Set(storageRESTVolume, volume)
values.Set(storageRESTFilePath, path)
reader := bytes.NewReader(buf)
respBody, err := client.call(ctx, storageRESTMethodAppendFile, values, reader, -1)
defer xhttp.DrainBody(respBody)
return err
}
func (client *storageRESTClient) CreateFile(ctx context.Context, volume, path string, size int64, reader io.Reader) error {
values := make(url.Values)
values.Set(storageRESTVolume, volume)
values.Set(storageRESTFilePath, path)
values.Set(storageRESTLength, strconv.Itoa(int(size)))
respBody, err := client.call(ctx, storageRESTMethodCreateFile, values, io.NopCloser(reader), size)
defer xhttp.DrainBody(respBody)
if err != nil {
return err
}
_, err = waitForHTTPResponse(respBody)
return err
}
func (client *storageRESTClient) WriteMetadata(ctx context.Context, volume, path string, fi FileInfo) error {
values := make(url.Values)
values.Set(storageRESTVolume, volume)
values.Set(storageRESTFilePath, path)
var reader bytes.Buffer
if err := msgp.Encode(&reader, &fi); err != nil {
return err
}
respBody, err := client.call(ctx, storageRESTMethodWriteMetadata, values, &reader, -1)
defer xhttp.DrainBody(respBody)
return err
}
func (client *storageRESTClient) UpdateMetadata(ctx context.Context, volume, path string, fi FileInfo) error {
values := make(url.Values)
values.Set(storageRESTVolume, volume)
values.Set(storageRESTFilePath, path)
var reader bytes.Buffer
if err := msgp.Encode(&reader, &fi); err != nil {
return err
}
respBody, err := client.call(ctx, storageRESTMethodUpdateMetadata, values, &reader, -1)
defer xhttp.DrainBody(respBody)
return err
}
func (client *storageRESTClient) DeleteVersion(ctx context.Context, volume, path string, fi FileInfo, forceDelMarker bool) error {
values := make(url.Values)
values.Set(storageRESTVolume, volume)
values.Set(storageRESTFilePath, path)
values.Set(storageRESTForceDelMarker, strconv.FormatBool(forceDelMarker))
var buffer bytes.Buffer
if err := msgp.Encode(&buffer, &fi); err != nil {
return err
}
respBody, err := client.call(ctx, storageRESTMethodDeleteVersion, values, &buffer, -1)
defer xhttp.DrainBody(respBody)
return err
}
// WriteAll - write all data to a file.
func (client *storageRESTClient) WriteAll(ctx context.Context, volume string, path string, b []byte) error {
values := make(url.Values)
values.Set(storageRESTVolume, volume)
values.Set(storageRESTFilePath, path)
respBody, err := client.call(ctx, storageRESTMethodWriteAll, values, bytes.NewBuffer(b), int64(len(b)))
defer xhttp.DrainBody(respBody)
return err
}
// CheckParts - stat all file parts.
func (client *storageRESTClient) CheckParts(ctx context.Context, volume string, path string, fi FileInfo) error {
values := make(url.Values)
values.Set(storageRESTVolume, volume)
values.Set(storageRESTFilePath, path)
var reader bytes.Buffer
if err := msgp.Encode(&reader, &fi); err != nil {
logger.LogIf(context.Background(), err)
return err
}
respBody, err := client.call(ctx, storageRESTMethodCheckParts, values, &reader, -1)
defer xhttp.DrainBody(respBody)
return err
}
// RenameData - rename source path to destination path atomically, metadata and data file.
func (client *storageRESTClient) RenameData(ctx context.Context, srcVolume, srcPath string, fi FileInfo, dstVolume, dstPath string) (sign uint64, err error) {
values := make(url.Values)
values.Set(storageRESTSrcVolume, srcVolume)
values.Set(storageRESTSrcPath, srcPath)
values.Set(storageRESTDstVolume, dstVolume)
values.Set(storageRESTDstPath, dstPath)
var reader bytes.Buffer
if err = msgp.Encode(&reader, &fi); err != nil {
return 0, err
}
respBody, err := client.call(ctx, storageRESTMethodRenameData, values, &reader, -1)
defer xhttp.DrainBody(respBody)
if err != nil {
return 0, err
}
respReader, err := waitForHTTPResponse(respBody)
if err != nil {
return 0, err
}
resp := &RenameDataResp{}
if err = gob.NewDecoder(respReader).Decode(resp); err != nil {
return 0, err
}
return resp.Signature, toStorageErr(resp.Err)
}
// where we keep old *Readers
var readMsgpReaderPool = sync.Pool{New: func() interface{} { return &msgp.Reader{} }}
// mspNewReader returns a *Reader that reads from the provided reader.
// The reader will be buffered.
func msgpNewReader(r io.Reader) *msgp.Reader {
p := readMsgpReaderPool.Get().(*msgp.Reader)
if p.R == nil {
p.R = xbufio.NewReaderSize(r, 8<<10)
} else {
p.R.Reset(r)
}
return p
}
func (client *storageRESTClient) ReadVersion(ctx context.Context, volume, path, versionID string, readData bool) (fi FileInfo, err error) {
values := make(url.Values)
values.Set(storageRESTVolume, volume)
values.Set(storageRESTFilePath, path)
values.Set(storageRESTVersionID, versionID)
values.Set(storageRESTReadData, strconv.FormatBool(readData))
respBody, err := client.call(ctx, storageRESTMethodReadVersion, values, nil, -1)
if err != nil {
return fi, err
}
defer xhttp.DrainBody(respBody)
dec := msgpNewReader(respBody)
defer readMsgpReaderPool.Put(dec)
err = fi.DecodeMsg(dec)
return fi, err
}
// ReadXL - reads all contents of xl.meta of a file.
func (client *storageRESTClient) ReadXL(ctx context.Context, volume string, path string, readData bool) (rf RawFileInfo, err error) {
values := make(url.Values)
values.Set(storageRESTVolume, volume)
values.Set(storageRESTFilePath, path)
values.Set(storageRESTReadData, strconv.FormatBool(readData))
respBody, err := client.call(ctx, storageRESTMethodReadXL, values, nil, -1)
if err != nil {
return rf, err
}
defer xhttp.DrainBody(respBody)
dec := msgpNewReader(respBody)
defer readMsgpReaderPool.Put(dec)
err = rf.DecodeMsg(dec)
return rf, err
}
// ReadAll - reads all contents of a file.
func (client *storageRESTClient) ReadAll(ctx context.Context, volume string, path string) ([]byte, error) {
values := make(url.Values)
values.Set(storageRESTVolume, volume)
values.Set(storageRESTFilePath, path)
respBody, err := client.call(ctx, storageRESTMethodReadAll, values, nil, -1)
if err != nil {
return nil, err
}
defer xhttp.DrainBody(respBody)
return io.ReadAll(respBody)
}
// ReadFileStream - returns a reader for the requested file.
func (client *storageRESTClient) ReadFileStream(ctx context.Context, 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(ctx, storageRESTMethodReadFileStream, values, nil, -1)
if err != nil {
return nil, err
}
return respBody, nil
}
// ReadFile - reads section of a file.
func (client *storageRESTClient) ReadFile(ctx context.Context, volume string, path string, offset int64, buf []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(buf)))
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(ctx, storageRESTMethodReadFile, values, nil, -1)
if err != nil {
return 0, err
}
defer xhttp.DrainBody(respBody)
n, err := io.ReadFull(respBody, buf)
return int64(n), err
}
// ListDir - lists a directory.
func (client *storageRESTClient) ListDir(ctx context.Context, volume, dirPath string, count int) (entries []string, err error) {
values := make(url.Values)
values.Set(storageRESTVolume, volume)
values.Set(storageRESTDirPath, dirPath)
values.Set(storageRESTCount, strconv.Itoa(count))
respBody, err := client.call(ctx, storageRESTMethodListDir, values, nil, -1)
if err != nil {
return nil, err
}
defer xhttp.DrainBody(respBody)
err = gob.NewDecoder(respBody).Decode(&entries)
return entries, err
}
// DeleteFile - deletes a file.
func (client *storageRESTClient) Delete(ctx context.Context, volume string, path string, deleteOpts DeleteOptions) error {
values := make(url.Values)
values.Set(storageRESTVolume, volume)
values.Set(storageRESTFilePath, path)
values.Set(storageRESTRecursive, strconv.FormatBool(deleteOpts.Recursive))
values.Set(storageRESTForceDelete, strconv.FormatBool(deleteOpts.Force))
respBody, err := client.call(ctx, storageRESTMethodDeleteFile, values, nil, -1)
defer xhttp.DrainBody(respBody)
return err
}
// DeleteVersions - deletes list of specified versions if present
func (client *storageRESTClient) DeleteVersions(ctx context.Context, volume string, versions []FileInfoVersions) (errs []error) {
if len(versions) == 0 {
return errs
}
values := make(url.Values)
values.Set(storageRESTVolume, volume)
values.Set(storageRESTTotalVersions, strconv.Itoa(len(versions)))
var buffer bytes.Buffer
encoder := msgp.NewWriter(&buffer)
for _, version := range versions {
version.EncodeMsg(encoder)
}
logger.LogIf(ctx, encoder.Flush())
errs = make([]error, len(versions))
respBody, err := client.call(ctx, storageRESTMethodDeleteVersions, values, &buffer, -1)
defer xhttp.DrainBody(respBody)
if err != nil {
if contextCanceled(ctx) {
err = ctx.Err()
}
for i := range errs {
errs[i] = err
}
return errs
}
reader, err := waitForHTTPResponse(respBody)
if err != nil {
for i := range errs {
errs[i] = err
}
return errs
}
dErrResp := &DeleteVersionsErrsResp{}
if err = gob.NewDecoder(reader).Decode(dErrResp); err != nil {
for i := range errs {
errs[i] = err
}
return errs
}
for i, dErr := range dErrResp.Errs {
errs[i] = toStorageErr(dErr)
}
return errs
}
// RenameFile - renames a file.
func (client *storageRESTClient) RenameFile(ctx context.Context, 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(ctx, storageRESTMethodRenameFile, values, nil, -1)
defer xhttp.DrainBody(respBody)
return err
}
func (client *storageRESTClient) VerifyFile(ctx context.Context, volume, path string, fi FileInfo) error {
values := make(url.Values)
values.Set(storageRESTVolume, volume)
values.Set(storageRESTFilePath, path)
var reader bytes.Buffer
if err := msgp.Encode(&reader, &fi); err != nil {
return err
}
respBody, err := client.call(ctx, storageRESTMethodVerifyFile, values, &reader, -1)
defer xhttp.DrainBody(respBody)
if err != nil {
return err
}
respReader, err := waitForHTTPResponse(respBody)
if err != nil {
return err
}
verifyResp := &VerifyFileResp{}
if err = gob.NewDecoder(respReader).Decode(verifyResp); err != nil {
return err
}
return toStorageErr(verifyResp.Err)
}
func (client *storageRESTClient) StatInfoFile(ctx context.Context, volume, path string, glob bool) (stat []StatInfo, err error) {
values := make(url.Values)
values.Set(storageRESTVolume, volume)
values.Set(storageRESTFilePath, path)
values.Set(storageRESTGlob, fmt.Sprint(glob))
respBody, err := client.call(ctx, storageRESTMethodStatInfoFile, values, nil, -1)
if err != nil {
return stat, err
}
defer xhttp.DrainBody(respBody)
respReader, err := waitForHTTPResponse(respBody)
if err != nil {
return stat, err
}
rd := msgpNewReader(respReader)
for {
var st StatInfo
err = st.DecodeMsg(rd)
if err != nil {
if errors.Is(err, io.EOF) {
err = nil
}
break
}
stat = append(stat, st)
}
return stat, err
}
// ReadMultiple will read multiple files and send each back as response.
// Files are read and returned in the given order.
// The resp channel is closed before the call returns.
// Only a canceled context or network errors returns an error.
func (client *storageRESTClient) ReadMultiple(ctx context.Context, req ReadMultipleReq, resp chan<- ReadMultipleResp) error {
defer close(resp)
body, err := req.MarshalMsg(nil)
if err != nil {
return err
}
respBody, err := client.call(ctx, storageRESTMethodReadMultiple, nil, bytes.NewReader(body), int64(len(body)))
if err != nil {
return err
}
defer xhttp.DrainBody(respBody)
if err != nil {
return err
}
pr, pw := io.Pipe()
go func() {
pw.CloseWithError(waitForHTTPStream(respBody, pw))
}()
mr := msgp.NewReader(pr)
for {
var file ReadMultipleResp
if err := file.DecodeMsg(mr); err != nil {
if errors.Is(err, io.EOF) {
err = nil
}
pr.CloseWithError(err)
return err
}
select {
case <-ctx.Done():
return ctx.Err()
case resp <- file:
}
}
}
// Close - marks the client as closed.
func (client *storageRESTClient) Close() error {
client.restClient.Close()
return nil
}
// Returns a storage rest client.
func newStorageRESTClient(endpoint Endpoint, healthcheck bool) *storageRESTClient {
serverURL := &url.URL{
Scheme: endpoint.Scheme,
Host: endpoint.Host,
Path: path.Join(storageRESTPrefix, endpoint.Path, storageRESTVersion),
}
restClient := rest.NewClient(serverURL, globalInternodeTransport, newCachedAuthToken())
if healthcheck {
// Use a separate client to avoid recursive calls.
healthClient := rest.NewClient(serverURL, globalInternodeTransport, newCachedAuthToken())
healthClient.ExpectTimeouts = true
healthClient.NoMetrics = true
restClient.HealthCheckFn = func() bool {
ctx, cancel := context.WithTimeout(context.Background(), restClient.HealthCheckTimeout)
defer cancel()
respBody, err := healthClient.Call(ctx, storageRESTMethodHealth, nil, nil, -1)
xhttp.DrainBody(respBody)
return toStorageErr(err) != errDiskNotFound
}
}
return &storageRESTClient{endpoint: endpoint, restClient: restClient, poolIndex: -1, setIndex: -1, diskIndex: -1}
}