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1828 lines (1563 loc) · 51 KB
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/*
* MinIO Cloud Storage, (C) 2016-2019 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 (
"context"
"crypto/subtle"
"encoding/json"
"fmt"
"io"
"io/ioutil"
"net/http"
"net/url"
"os"
"path"
"runtime"
"sort"
"strconv"
"strings"
"time"
humanize "github.com/dustin/go-humanize"
"github.com/gorilla/mux"
"github.com/minio/minio/cmd/crypto"
xhttp "github.com/minio/minio/cmd/http"
"github.com/minio/minio/cmd/logger"
"github.com/minio/minio/pkg/cpu"
"github.com/minio/minio/pkg/handlers"
iampolicy "github.com/minio/minio/pkg/iam/policy"
"github.com/minio/minio/pkg/madmin"
"github.com/minio/minio/pkg/mem"
xnet "github.com/minio/minio/pkg/net"
"github.com/minio/minio/pkg/quick"
trace "github.com/minio/minio/pkg/trace"
)
const (
maxEConfigJSONSize = 262272
defaultNetPerfSize = 100 * humanize.MiByte
)
// Type-safe query params.
type mgmtQueryKey string
// Only valid query params for mgmt admin APIs.
const (
mgmtBucket mgmtQueryKey = "bucket"
mgmtPrefix = "prefix"
mgmtClientToken = "clientToken"
mgmtForceStart = "forceStart"
mgmtForceStop = "forceStop"
)
func updateServer(updateURL, sha256Hex string, latestReleaseTime time.Time) (us madmin.ServerUpdateStatus, err error) {
minioMode := getMinioMode()
// No inputs provided we should try to update using the default URL.
if updateURL == "" && sha256Hex == "" && latestReleaseTime.IsZero() {
var updateMsg string
updateMsg, sha256Hex, _, latestReleaseTime, err = getUpdateInfo(updateTimeout, minioMode)
if err != nil {
return us, err
}
if updateMsg == "" {
us.CurrentVersion = Version
us.UpdatedVersion = Version
return us, nil
}
if runtime.GOOS == "windows" {
updateURL = minioReleaseURL + "minio.exe"
} else {
updateURL = minioReleaseURL + "minio"
}
}
if err = doUpdate(updateURL, sha256Hex, minioMode); err != nil {
return us, err
}
us.CurrentVersion = Version
us.UpdatedVersion = latestReleaseTime.Format(minioReleaseTagTimeLayout)
return us, nil
}
// ServerUpdateHandler - POST /minio/admin/v1/update?updateURL={updateURL}
// ----------
// updates all minio servers and restarts them gracefully.
func (a adminAPIHandlers) ServerUpdateHandler(w http.ResponseWriter, r *http.Request) {
ctx := newContext(r, w, "ServerUpdate")
objectAPI := validateAdminReq(ctx, w, r)
if objectAPI == nil {
return
}
if globalInplaceUpdateDisabled {
// if MINIO_UPDATE=off - inplace update is disabled, mostly
// in containers.
writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrMethodNotAllowed), r.URL)
return
}
vars := mux.Vars(r)
updateURL := vars[peerRESTUpdateURL]
mode := getMinioMode()
var sha256Hex string
var latestReleaseTime time.Time
if updateURL != "" {
u, err := url.Parse(updateURL)
if err != nil {
writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
return
}
content, err := downloadReleaseURL(updateURL, updateTimeout, mode)
if err != nil {
writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
return
}
sha256Hex, latestReleaseTime, err = parseReleaseData(content)
if err != nil {
writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
return
}
if runtime.GOOS == "windows" {
u.Path = path.Dir(u.Path) + "minio.exe"
} else {
u.Path = path.Dir(u.Path) + "minio"
}
updateURL = u.String()
}
for _, nerr := range globalNotificationSys.ServerUpdate(updateURL, sha256Hex, latestReleaseTime) {
if nerr.Err != nil {
logger.GetReqInfo(ctx).SetTags("peerAddress", nerr.Host.String())
logger.LogIf(ctx, nerr.Err)
}
}
updateStatus, err := updateServer(updateURL, sha256Hex, latestReleaseTime)
if err != nil {
writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
return
}
// Marshal API response
jsonBytes, err := json.Marshal(updateStatus)
if err != nil {
writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
return
}
writeSuccessResponseJSON(w, jsonBytes)
if updateStatus.CurrentVersion != updateStatus.UpdatedVersion {
// We did upgrade - restart all services.
globalServiceSignalCh <- serviceRestart
}
}
// ServiceActionHandler - POST /minio/admin/v1/service?action={action}
// ----------
// restarts/stops minio server gracefully. In a distributed setup,
func (a adminAPIHandlers) ServiceActionHandler(w http.ResponseWriter, r *http.Request) {
ctx := newContext(r, w, "ServiceAction")
vars := mux.Vars(r)
action := vars["action"]
objectAPI := validateAdminReq(ctx, w, r)
if objectAPI == nil {
return
}
var serviceSig serviceSignal
switch madmin.ServiceAction(action) {
case madmin.ServiceActionRestart:
serviceSig = serviceRestart
case madmin.ServiceActionStop:
serviceSig = serviceStop
default:
logger.LogIf(ctx, fmt.Errorf("Unrecognized service action %s requested", action))
writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrMalformedPOSTRequest), r.URL)
return
}
// Notify all other MinIO peers signal service.
for _, nerr := range globalNotificationSys.SignalService(serviceSig) {
if nerr.Err != nil {
logger.GetReqInfo(ctx).SetTags("peerAddress", nerr.Host.String())
logger.LogIf(ctx, nerr.Err)
}
}
// Reply to the client before restarting, stopping MinIO server.
writeSuccessResponseHeadersOnly(w)
globalServiceSignalCh <- serviceSig
}
// ServerProperties holds some server information such as, version, region
// uptime, etc..
type ServerProperties struct {
Uptime time.Duration `json:"uptime"`
Version string `json:"version"`
CommitID string `json:"commitID"`
DeploymentID string `json:"deploymentID"`
Region string `json:"region"`
SQSARN []string `json:"sqsARN"`
}
// ServerConnStats holds transferred bytes from/to the server
type ServerConnStats struct {
TotalInputBytes uint64 `json:"transferred"`
TotalOutputBytes uint64 `json:"received"`
Throughput uint64 `json:"throughput,omitempty"`
}
// ServerHTTPMethodStats holds total number of HTTP operations from/to the server,
// including the average duration the call was spent.
type ServerHTTPMethodStats struct {
Count uint64 `json:"count"`
AvgDuration string `json:"avgDuration"`
}
// ServerHTTPStats holds all type of http operations performed to/from the server
// including their average execution time.
type ServerHTTPStats struct {
TotalHEADStats ServerHTTPMethodStats `json:"totalHEADs"`
SuccessHEADStats ServerHTTPMethodStats `json:"successHEADs"`
TotalGETStats ServerHTTPMethodStats `json:"totalGETs"`
SuccessGETStats ServerHTTPMethodStats `json:"successGETs"`
TotalPUTStats ServerHTTPMethodStats `json:"totalPUTs"`
SuccessPUTStats ServerHTTPMethodStats `json:"successPUTs"`
TotalPOSTStats ServerHTTPMethodStats `json:"totalPOSTs"`
SuccessPOSTStats ServerHTTPMethodStats `json:"successPOSTs"`
TotalDELETEStats ServerHTTPMethodStats `json:"totalDELETEs"`
SuccessDELETEStats ServerHTTPMethodStats `json:"successDELETEs"`
}
// ServerInfoData holds storage, connections and other
// information of a given server.
type ServerInfoData struct {
StorageInfo StorageInfo `json:"storage"`
ConnStats ServerConnStats `json:"network"`
HTTPStats ServerHTTPStats `json:"http"`
Properties ServerProperties `json:"server"`
}
// ServerInfo holds server information result of one node
type ServerInfo struct {
Error string `json:"error"`
Addr string `json:"addr"`
Data *ServerInfoData `json:"data"`
}
// ServerInfoHandler - GET /minio/admin/v1/info
// ----------
// Get server information
func (a adminAPIHandlers) ServerInfoHandler(w http.ResponseWriter, r *http.Request) {
ctx := newContext(r, w, "ServerInfo")
objectAPI := validateAdminReq(ctx, w, r)
if objectAPI == nil {
return
}
serverInfo := globalNotificationSys.ServerInfo(ctx)
// Once we have received all the ServerInfo from peers
// add the local peer server info as well.
serverInfo = append(serverInfo, ServerInfo{
Addr: getHostName(r),
Data: &ServerInfoData{
StorageInfo: objectAPI.StorageInfo(ctx),
ConnStats: globalConnStats.toServerConnStats(),
HTTPStats: globalHTTPStats.toServerHTTPStats(),
Properties: ServerProperties{
Uptime: UTCNow().Sub(globalBootTime),
Version: Version,
CommitID: CommitID,
DeploymentID: globalDeploymentID,
SQSARN: globalNotificationSys.GetARNList(),
Region: globalServerConfig.GetRegion(),
},
},
})
// Marshal API response
jsonBytes, err := json.Marshal(serverInfo)
if err != nil {
writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
return
}
// Reply with storage information (across nodes in a
// distributed setup) as json.
writeSuccessResponseJSON(w, jsonBytes)
}
// ServerCPULoadInfo holds informantion about cpu utilization
// of one minio node. It also reports any errors if encountered
// while trying to reach this server.
type ServerCPULoadInfo struct {
Addr string `json:"addr"`
Error string `json:"error,omitempty"`
Load []cpu.Load `json:"load"`
HistoricLoad []cpu.Load `json:"historicLoad"`
}
// ServerMemUsageInfo holds informantion about memory utilization
// of one minio node. It also reports any errors if encountered
// while trying to reach this server.
type ServerMemUsageInfo struct {
Addr string `json:"addr"`
Error string `json:"error,omitempty"`
Usage []mem.Usage `json:"usage"`
HistoricUsage []mem.Usage `json:"historicUsage"`
}
// ServerNetReadPerfInfo network read performance information.
type ServerNetReadPerfInfo struct {
Addr string `json:"addr"`
ReadThroughput uint64 `json:"readThroughput"`
Error string `json:"error,omitempty"`
}
// PerfInfoHandler - GET /minio/admin/v1/performance?perfType={perfType}
// ----------
// Get all performance information based on input type
// Supported types = drive
func (a adminAPIHandlers) PerfInfoHandler(w http.ResponseWriter, r *http.Request) {
ctx := newContext(r, w, "PerfInfo")
objectAPI := validateAdminReq(ctx, w, r)
if objectAPI == nil {
return
}
vars := mux.Vars(r)
switch perfType := vars["perfType"]; perfType {
case "net":
var size int64 = defaultNetPerfSize
if sizeStr, found := vars["size"]; found {
var err error
if size, err = strconv.ParseInt(sizeStr, 10, 64); err != nil || size < 0 {
writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrBadRequest), r.URL)
return
}
}
if !globalIsDistXL {
writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrMethodNotAllowed), r.URL)
return
}
addr := r.Host
if globalIsDistXL {
addr = GetLocalPeer(globalEndpoints)
}
infos := map[string][]ServerNetReadPerfInfo{}
infos[addr] = globalNotificationSys.NetReadPerfInfo(size)
for peer, info := range globalNotificationSys.CollectNetPerfInfo(size) {
infos[peer] = info
}
// Marshal API response
jsonBytes, err := json.Marshal(infos)
if err != nil {
writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
return
}
// Reply with performance information (across nodes in a
// distributed setup) as json.
writeSuccessResponseJSON(w, jsonBytes)
case "drive":
// Drive Perf is only implemented for Erasure coded backends
if !globalIsXL {
writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrMethodNotAllowed), r.URL)
return
}
var size int64 = madmin.DefaultDrivePerfSize
if sizeStr, found := vars["size"]; found {
var err error
if size, err = strconv.ParseInt(sizeStr, 10, 64); err != nil || size <= 0 {
writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrBadRequest), r.URL)
return
}
}
// Get drive performance details from local server's drive(s)
dp := getLocalDrivesPerf(globalEndpoints, size, r)
// Notify all other MinIO peers to report drive performance numbers
dps := globalNotificationSys.DrivePerfInfo(size)
dps = append(dps, dp)
// Marshal API response
jsonBytes, err := json.Marshal(dps)
if err != nil {
writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
return
}
// Reply with performance information (across nodes in a
// distributed setup) as json.
writeSuccessResponseJSON(w, jsonBytes)
case "cpu":
// Get CPU load details from local server's cpu(s)
cpu := getLocalCPULoad(globalEndpoints, r)
// Notify all other MinIO peers to report cpu load numbers
cpus := globalNotificationSys.CPULoadInfo()
cpus = append(cpus, cpu)
// Marshal API response
jsonBytes, err := json.Marshal(cpus)
if err != nil {
writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
return
}
// Reply with cpu load information (across nodes in a
// distributed setup) as json.
writeSuccessResponseJSON(w, jsonBytes)
case "mem":
// Get mem usage details from local server(s)
m := getLocalMemUsage(globalEndpoints, r)
// Notify all other MinIO peers to report mem usage numbers
mems := globalNotificationSys.MemUsageInfo()
mems = append(mems, m)
// Marshal API response
jsonBytes, err := json.Marshal(mems)
if err != nil {
writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
return
}
// Reply with mem usage information (across nodes in a
// distributed setup) as json.
writeSuccessResponseJSON(w, jsonBytes)
default:
writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrMethodNotAllowed), r.URL)
}
}
func newLockEntry(l lockRequesterInfo, resource, server string) *madmin.LockEntry {
entry := &madmin.LockEntry{Timestamp: l.Timestamp, Resource: resource, ServerList: []string{server}, Owner: l.Node, Source: l.Source, ID: l.UID}
if l.Writer {
entry.Type = "Write"
} else {
entry.Type = "Read"
}
return entry
}
func topLockEntries(peerLocks []*PeerLocks) madmin.LockEntries {
entryMap := make(map[string]*madmin.LockEntry)
for _, peerLock := range peerLocks {
if peerLock == nil {
continue
}
for k, v := range peerLock.Locks {
for _, lockReqInfo := range v {
if val, ok := entryMap[lockReqInfo.UID]; ok {
val.ServerList = append(val.ServerList, peerLock.Addr)
} else {
entryMap[lockReqInfo.UID] = newLockEntry(lockReqInfo, k, peerLock.Addr)
}
}
}
}
var lockEntries = make(madmin.LockEntries, 0)
for _, v := range entryMap {
lockEntries = append(lockEntries, *v)
}
sort.Sort(lockEntries)
const listCount int = 10
if len(lockEntries) > listCount {
lockEntries = lockEntries[:listCount]
}
return lockEntries
}
// PeerLocks holds server information result of one node
type PeerLocks struct {
Addr string
Locks GetLocksResp
}
// TopLocksHandler Get list of locks in use
func (a adminAPIHandlers) TopLocksHandler(w http.ResponseWriter, r *http.Request) {
ctx := newContext(r, w, "TopLocks")
objectAPI := validateAdminReq(ctx, w, r)
if objectAPI == nil {
return
}
// Method only allowed in Distributed XL mode.
if !globalIsDistXL {
writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrMethodNotAllowed), r.URL)
return
}
peerLocks := globalNotificationSys.GetLocks(ctx)
// Once we have received all the locks currently used from peers
// add the local peer locks list as well.
localLocks := globalLockServer.ll.DupLockMap()
peerLocks = append(peerLocks, &PeerLocks{
Addr: getHostName(r),
Locks: localLocks,
})
topLocks := topLockEntries(peerLocks)
// Marshal API response
jsonBytes, err := json.Marshal(topLocks)
if err != nil {
writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
return
}
// Reply with storage information (across nodes in a
// distributed setup) as json.
writeSuccessResponseJSON(w, jsonBytes)
}
// StartProfilingResult contains the status of the starting
// profiling action in a given server
type StartProfilingResult struct {
NodeName string `json:"nodeName"`
Success bool `json:"success"`
Error string `json:"error"`
}
// StartProfilingHandler - POST /minio/admin/v1/profiling/start?profilerType={profilerType}
// ----------
// Enable server profiling
func (a adminAPIHandlers) StartProfilingHandler(w http.ResponseWriter, r *http.Request) {
ctx := newContext(r, w, "StartProfiling")
objectAPI := validateAdminReq(ctx, w, r)
if objectAPI == nil {
return
}
vars := mux.Vars(r)
profiler := vars["profilerType"]
thisAddr, err := xnet.ParseHost(GetLocalPeer(globalEndpoints))
if err != nil {
writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
return
}
// Start profiling on remote servers.
hostErrs := globalNotificationSys.StartProfiling(profiler)
// Start profiling locally as well.
{
if globalProfiler != nil {
globalProfiler.Stop()
}
prof, err := startProfiler(profiler, "")
if err != nil {
hostErrs = append(hostErrs, NotificationPeerErr{
Host: *thisAddr,
Err: err,
})
} else {
globalProfiler = prof
hostErrs = append(hostErrs, NotificationPeerErr{
Host: *thisAddr,
})
}
}
var startProfilingResult []StartProfilingResult
for _, nerr := range hostErrs {
result := StartProfilingResult{NodeName: nerr.Host.String()}
if nerr.Err != nil {
result.Error = nerr.Err.Error()
} else {
result.Success = true
}
startProfilingResult = append(startProfilingResult, result)
}
// Create JSON result and send it to the client
startProfilingResultInBytes, err := json.Marshal(startProfilingResult)
if err != nil {
writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
return
}
writeSuccessResponseJSON(w, []byte(startProfilingResultInBytes))
}
// dummyFileInfo represents a dummy representation of a profile data file
// present only in memory, it helps to generate the zip stream.
type dummyFileInfo struct {
name string
size int64
mode os.FileMode
modTime time.Time
isDir bool
sys interface{}
}
func (f dummyFileInfo) Name() string { return f.name }
func (f dummyFileInfo) Size() int64 { return f.size }
func (f dummyFileInfo) Mode() os.FileMode { return f.mode }
func (f dummyFileInfo) ModTime() time.Time { return f.modTime }
func (f dummyFileInfo) IsDir() bool { return f.isDir }
func (f dummyFileInfo) Sys() interface{} { return f.sys }
// DownloadProfilingHandler - POST /minio/admin/v1/profiling/download
// ----------
// Download profiling information of all nodes in a zip format
func (a adminAPIHandlers) DownloadProfilingHandler(w http.ResponseWriter, r *http.Request) {
ctx := newContext(r, w, "DownloadProfiling")
objectAPI := validateAdminReq(ctx, w, r)
if objectAPI == nil {
return
}
if !globalNotificationSys.DownloadProfilingData(ctx, w) {
writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrAdminProfilerNotEnabled), r.URL)
return
}
}
type healInitParams struct {
bucket, objPrefix string
hs madmin.HealOpts
clientToken string
forceStart, forceStop bool
}
// extractHealInitParams - Validates params for heal init API.
func extractHealInitParams(vars map[string]string, qParms url.Values, r io.Reader) (hip healInitParams, err APIErrorCode) {
hip.bucket = vars[string(mgmtBucket)]
hip.objPrefix = vars[string(mgmtPrefix)]
if hip.bucket == "" {
if hip.objPrefix != "" {
// Bucket is required if object-prefix is given
err = ErrHealMissingBucket
return
}
} else if isReservedOrInvalidBucket(hip.bucket, false) {
err = ErrInvalidBucketName
return
}
// empty prefix is valid.
if !IsValidObjectPrefix(hip.objPrefix) {
err = ErrInvalidObjectName
return
}
if len(qParms[string(mgmtClientToken)]) > 0 {
hip.clientToken = qParms[string(mgmtClientToken)][0]
}
if _, ok := qParms[string(mgmtForceStart)]; ok {
hip.forceStart = true
}
if _, ok := qParms[string(mgmtForceStop)]; ok {
hip.forceStop = true
}
// Invalid request conditions:
//
// Cannot have both forceStart and forceStop in the same
// request; If clientToken is provided, request can only be
// to continue receiving logs, so it cannot be start or
// stop;
if (hip.forceStart && hip.forceStop) ||
(hip.clientToken != "" && (hip.forceStart || hip.forceStop)) {
err = ErrInvalidRequest
return
}
// ignore body if clientToken is provided
if hip.clientToken == "" {
jerr := json.NewDecoder(r).Decode(&hip.hs)
if jerr != nil {
logger.LogIf(context.Background(), jerr)
err = ErrRequestBodyParse
return
}
}
err = ErrNone
return
}
// HealHandler - POST /minio/admin/v1/heal/
// -----------
// Start heal processing and return heal status items.
//
// On a successful heal sequence start, a unique client token is
// returned. Subsequent requests to this endpoint providing the client
// token will receive heal status records from the running heal
// sequence.
//
// If no client token is provided, and a heal sequence is in progress
// an error is returned with information about the running heal
// sequence. However, if the force-start flag is provided, the server
// aborts the running heal sequence and starts a new one.
func (a adminAPIHandlers) HealHandler(w http.ResponseWriter, r *http.Request) {
ctx := newContext(r, w, "Heal")
objectAPI := validateAdminReq(ctx, w, r)
if objectAPI == nil {
return
}
// Check if this setup has an erasure coded backend.
if !globalIsXL {
writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrHealNotImplemented), r.URL)
return
}
hip, errCode := extractHealInitParams(mux.Vars(r), r.URL.Query(), r.Body)
if errCode != ErrNone {
writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(errCode), r.URL)
return
}
type healResp struct {
respBytes []byte
apiErr APIError
errBody string
}
// Define a closure to start sending whitespace to client
// after 10s unless a response item comes in
keepConnLive := func(w http.ResponseWriter, respCh chan healResp) {
ticker := time.NewTicker(time.Second * 10)
defer ticker.Stop()
started := false
forLoop:
for {
select {
case <-ticker.C:
if !started {
// Start writing response to client
started = true
setCommonHeaders(w)
w.Header().Set(xhttp.ContentType, "text/event-stream")
// Set 200 OK status
w.WriteHeader(200)
}
// Send whitespace and keep connection open
w.Write([]byte(" "))
w.(http.Flusher).Flush()
case hr := <-respCh:
switch hr.apiErr {
case noError:
if started {
w.Write(hr.respBytes)
w.(http.Flusher).Flush()
} else {
writeSuccessResponseJSON(w, hr.respBytes)
}
default:
var errorRespJSON []byte
if hr.errBody == "" {
errorRespJSON = encodeResponseJSON(getAPIErrorResponse(ctx, hr.apiErr,
r.URL.Path, w.Header().Get(xhttp.AmzRequestID),
globalDeploymentID))
} else {
errorRespJSON = encodeResponseJSON(APIErrorResponse{
Code: hr.apiErr.Code,
Message: hr.errBody,
Resource: r.URL.Path,
RequestID: w.Header().Get(xhttp.AmzRequestID),
HostID: globalDeploymentID,
})
}
if !started {
setCommonHeaders(w)
w.Header().Set(xhttp.ContentType, string(mimeJSON))
w.WriteHeader(hr.apiErr.HTTPStatusCode)
}
w.Write(errorRespJSON)
w.(http.Flusher).Flush()
}
break forLoop
}
}
}
// find number of disks in the setup
info := objectAPI.StorageInfo(ctx)
numDisks := info.Backend.OfflineDisks + info.Backend.OnlineDisks
healPath := pathJoin(hip.bucket, hip.objPrefix)
if hip.clientToken == "" && !hip.forceStart && !hip.forceStop {
nh, exists := globalAllHealState.getHealSequence(healPath)
if exists && !nh.hasEnded() && len(nh.currentStatus.Items) > 0 {
b, err := json.Marshal(madmin.HealStartSuccess{
ClientToken: nh.clientToken,
ClientAddress: nh.clientAddress,
StartTime: nh.startTime,
})
if err != nil {
writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
return
}
// Client token not specified but a heal sequence exists on a path,
// Send the token back to client.
writeSuccessResponseJSON(w, b)
return
}
}
if hip.clientToken != "" && !hip.forceStart && !hip.forceStop {
// Since clientToken is given, fetch heal status from running
// heal sequence.
respBytes, errCode := globalAllHealState.PopHealStatusJSON(
healPath, hip.clientToken)
if errCode != ErrNone {
writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(errCode), r.URL)
} else {
writeSuccessResponseJSON(w, respBytes)
}
return
}
respCh := make(chan healResp)
switch {
case hip.forceStop:
go func() {
respBytes, apiErr := globalAllHealState.stopHealSequence(healPath)
hr := healResp{respBytes: respBytes, apiErr: apiErr}
respCh <- hr
}()
case hip.clientToken == "":
nh := newHealSequence(hip.bucket, hip.objPrefix, handlers.GetSourceIP(r), numDisks, hip.hs, hip.forceStart)
go func() {
respBytes, apiErr, errMsg := globalAllHealState.LaunchNewHealSequence(nh)
hr := healResp{respBytes, apiErr, errMsg}
respCh <- hr
}()
}
// Due to the force-starting functionality, the Launch
// call above can take a long time - to keep the
// connection alive, we start sending whitespace
keepConnLive(w, respCh)
}
func (a adminAPIHandlers) BackgroundHealStatusHandler(w http.ResponseWriter, r *http.Request) {
ctx := newContext(r, w, "HealBackgroundStatus")
objectAPI := validateAdminReq(ctx, w, r)
if objectAPI == nil {
return
}
// Check if this setup has an erasure coded backend.
if !globalIsXL {
writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrHealNotImplemented), r.URL)
return
}
var bgHealStates []madmin.BgHealState
// Get local heal status first
bgHealStates = append(bgHealStates, getLocalBackgroundHealStatus())
if globalIsDistXL {
// Get heal status from other peers
peersHealStates := globalNotificationSys.BackgroundHealStatus()
bgHealStates = append(bgHealStates, peersHealStates...)
}
// Aggregate healing result
var aggregatedHealStateResult = madmin.BgHealState{}
for _, state := range bgHealStates {
aggregatedHealStateResult.ScannedItemsCount += state.ScannedItemsCount
if aggregatedHealStateResult.LastHealActivity.Before(state.LastHealActivity) {
aggregatedHealStateResult.LastHealActivity = state.LastHealActivity
}
}
if err := json.NewEncoder(w).Encode(aggregatedHealStateResult); err != nil {
writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
return
}
w.(http.Flusher).Flush()
}
// GetConfigHandler - GET /minio/admin/v1/config
// Get config.json of this minio setup.
func (a adminAPIHandlers) GetConfigHandler(w http.ResponseWriter, r *http.Request) {
ctx := newContext(r, w, "GetConfigHandler")
objectAPI := validateAdminReq(ctx, w, r)
if objectAPI == nil {
return
}
config, err := readServerConfig(ctx, objectAPI)
if err != nil {
writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
return
}
configData, err := json.MarshalIndent(config, "", "\t")
if err != nil {
writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
return
}
password := config.GetCredential().SecretKey
econfigData, err := madmin.EncryptData(password, configData)
if err != nil {
writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
return
}
writeSuccessResponseJSON(w, econfigData)
}
func validateAdminReq(ctx context.Context, w http.ResponseWriter, r *http.Request) ObjectLayer {
// Get current object layer instance.
objectAPI := newObjectLayerFn()
if objectAPI == nil || globalNotificationSys == nil || globalIAMSys == nil {
writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrServerNotInitialized), r.URL)
return nil
}
// Validate request signature.
adminAPIErr := checkAdminRequestAuthType(ctx, r, "")
if adminAPIErr != ErrNone {
writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(adminAPIErr), r.URL)
return nil
}
return objectAPI
}
// AdminError - is a generic error for all admin APIs.
type AdminError struct {
Code string
Message string
StatusCode int
}
func (ae AdminError) Error() string {
return ae.Message
}
// Admin API errors
const (
AdminUpdateUnexpectedFailure = "XMinioAdminUpdateUnexpectedFailure"
AdminUpdateURLNotReachable = "XMinioAdminUpdateURLNotReachable"
AdminUpdateApplyFailure = "XMinioAdminUpdateApplyFailure"
)
// toAdminAPIErrCode - converts errXLWriteQuorum error to admin API
// specific error.
func toAdminAPIErrCode(ctx context.Context, err error) APIErrorCode {
switch err {
case errXLWriteQuorum:
return ErrAdminConfigNoQuorum
default:
return toAPIErrorCode(ctx, err)
}
}
func toAdminAPIErr(ctx context.Context, err error) APIError {
if err == nil {
return noError
}