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peer-rest-server.go
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peer-rest-server.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"
"encoding/json"
"errors"
"fmt"
"io"
"net/http"
"net/url"
"strconv"
"strings"
"sync"
"sync/atomic"
"time"
"github.com/dustin/go-humanize"
"github.com/klauspost/compress/zstd"
"github.com/minio/madmin-go/v3"
"github.com/minio/minio/internal/bucket/bandwidth"
b "github.com/minio/minio/internal/bucket/bandwidth"
"github.com/minio/minio/internal/event"
"github.com/minio/minio/internal/grid"
xioutil "github.com/minio/minio/internal/ioutil"
"github.com/minio/minio/internal/logger"
"github.com/minio/minio/internal/pubsub"
"github.com/minio/mux"
"github.com/minio/pkg/v3/logger/message/log"
)
// To abstract a node over network.
type peerRESTServer struct{}
var (
// Types & Wrappers
aoBucketInfo = grid.NewArrayOf[*BucketInfo](func() *BucketInfo { return &BucketInfo{} })
aoMetricsGroup = grid.NewArrayOf[*MetricV2](func() *MetricV2 { return &MetricV2{} })
madminBgHealState = grid.NewJSONPool[madmin.BgHealState]()
madminCPUs = grid.NewJSONPool[madmin.CPUs]()
madminMemInfo = grid.NewJSONPool[madmin.MemInfo]()
madminNetInfo = grid.NewJSONPool[madmin.NetInfo]()
madminOSInfo = grid.NewJSONPool[madmin.OSInfo]()
madminPartitions = grid.NewJSONPool[madmin.Partitions]()
madminProcInfo = grid.NewJSONPool[madmin.ProcInfo]()
madminRealtimeMetrics = grid.NewJSONPool[madmin.RealtimeMetrics]()
madminServerProperties = grid.NewJSONPool[madmin.ServerProperties]()
madminStorageInfo = grid.NewJSONPool[madmin.StorageInfo]()
madminSysConfig = grid.NewJSONPool[madmin.SysConfig]()
madminSysErrors = grid.NewJSONPool[madmin.SysErrors]()
madminSysServices = grid.NewJSONPool[madmin.SysServices]()
// Request -> Response RPC calls
deleteBucketMetadataRPC = grid.NewSingleHandler[*grid.MSS, grid.NoPayload](grid.HandlerDeleteBucketMetadata, grid.NewMSS, grid.NewNoPayload).IgnoreNilConn()
deleteBucketRPC = grid.NewSingleHandler[*grid.MSS, grid.NoPayload](grid.HandlerDeleteBucket, grid.NewMSS, grid.NewNoPayload)
deletePolicyRPC = grid.NewSingleHandler[*grid.MSS, grid.NoPayload](grid.HandlerDeletePolicy, grid.NewMSS, grid.NewNoPayload).IgnoreNilConn()
deleteSvcActRPC = grid.NewSingleHandler[*grid.MSS, grid.NoPayload](grid.HandlerDeleteServiceAccount, grid.NewMSS, grid.NewNoPayload).IgnoreNilConn()
deleteUserRPC = grid.NewSingleHandler[*grid.MSS, grid.NoPayload](grid.HandlerDeleteUser, grid.NewMSS, grid.NewNoPayload).IgnoreNilConn()
getAllBucketStatsRPC = grid.NewSingleHandler[*grid.MSS, *BucketStatsMap](grid.HandlerGetAllBucketStats, grid.NewMSS, func() *BucketStatsMap { return &BucketStatsMap{} })
getBackgroundHealStatusRPC = grid.NewSingleHandler[*grid.MSS, *grid.JSON[madmin.BgHealState]](grid.HandlerBackgroundHealStatus, grid.NewMSS, madminBgHealState.NewJSON)
getBandwidthRPC = grid.NewSingleHandler[*grid.URLValues, *bandwidth.BucketBandwidthReport](grid.HandlerGetBandwidth, grid.NewURLValues, func() *bandwidth.BucketBandwidthReport { return &bandwidth.BucketBandwidthReport{} })
getBucketStatsRPC = grid.NewSingleHandler[*grid.MSS, *BucketStats](grid.HandlerGetBucketStats, grid.NewMSS, func() *BucketStats { return &BucketStats{} })
getCPUsHandler = grid.NewSingleHandler[*grid.MSS, *grid.JSON[madmin.CPUs]](grid.HandlerGetCPUs, grid.NewMSS, madminCPUs.NewJSON)
getLastDayTierStatsRPC = grid.NewSingleHandler[*grid.MSS, *DailyAllTierStats](grid.HandlerGetLastDayTierStats, grid.NewMSS, func() *DailyAllTierStats { return &DailyAllTierStats{} })
getLocksRPC = grid.NewSingleHandler[*grid.MSS, *localLockMap](grid.HandlerGetLocks, grid.NewMSS, func() *localLockMap { return &localLockMap{} })
getMemInfoRPC = grid.NewSingleHandler[*grid.MSS, *grid.JSON[madmin.MemInfo]](grid.HandlerGetMemInfo, grid.NewMSS, madminMemInfo.NewJSON)
getMetacacheListingRPC = grid.NewSingleHandler[*listPathOptions, *metacache](grid.HandlerGetMetacacheListing, func() *listPathOptions { return &listPathOptions{} }, func() *metacache { return &metacache{} })
getMetricsRPC = grid.NewSingleHandler[*grid.URLValues, *grid.JSON[madmin.RealtimeMetrics]](grid.HandlerGetMetrics, grid.NewURLValues, madminRealtimeMetrics.NewJSON)
getNetInfoRPC = grid.NewSingleHandler[*grid.MSS, *grid.JSON[madmin.NetInfo]](grid.HandlerGetNetInfo, grid.NewMSS, madminNetInfo.NewJSON)
getOSInfoRPC = grid.NewSingleHandler[*grid.MSS, *grid.JSON[madmin.OSInfo]](grid.HandlerGetOSInfo, grid.NewMSS, madminOSInfo.NewJSON)
getPartitionsRPC = grid.NewSingleHandler[*grid.MSS, *grid.JSON[madmin.Partitions]](grid.HandlerGetPartitions, grid.NewMSS, madminPartitions.NewJSON)
getPeerBucketMetricsRPC = grid.NewSingleHandler[*grid.MSS, *grid.Array[*MetricV2]](grid.HandlerGetPeerBucketMetrics, grid.NewMSS, aoMetricsGroup.New)
getPeerMetricsRPC = grid.NewSingleHandler[*grid.MSS, *grid.Array[*MetricV2]](grid.HandlerGetPeerMetrics, grid.NewMSS, aoMetricsGroup.New)
getResourceMetricsRPC = grid.NewSingleHandler[*grid.MSS, *grid.Array[*MetricV2]](grid.HandlerGetResourceMetrics, grid.NewMSS, aoMetricsGroup.New)
getProcInfoRPC = grid.NewSingleHandler[*grid.MSS, *grid.JSON[madmin.ProcInfo]](grid.HandlerGetProcInfo, grid.NewMSS, madminProcInfo.NewJSON)
getSRMetricsRPC = grid.NewSingleHandler[*grid.MSS, *SRMetricsSummary](grid.HandlerGetSRMetrics, grid.NewMSS, func() *SRMetricsSummary { return &SRMetricsSummary{} })
getSysConfigRPC = grid.NewSingleHandler[*grid.MSS, *grid.JSON[madmin.SysConfig]](grid.HandlerGetSysConfig, grid.NewMSS, madminSysConfig.NewJSON)
getSysErrorsRPC = grid.NewSingleHandler[*grid.MSS, *grid.JSON[madmin.SysErrors]](grid.HandlerGetSysErrors, grid.NewMSS, madminSysErrors.NewJSON)
getSysServicesRPC = grid.NewSingleHandler[*grid.MSS, *grid.JSON[madmin.SysServices]](grid.HandlerGetSysServices, grid.NewMSS, madminSysServices.NewJSON)
headBucketRPC = grid.NewSingleHandler[*grid.MSS, *VolInfo](grid.HandlerHeadBucket, grid.NewMSS, func() *VolInfo { return &VolInfo{} })
healBucketRPC = grid.NewSingleHandler[*grid.MSS, grid.NoPayload](grid.HandlerHealBucket, grid.NewMSS, grid.NewNoPayload)
listBucketsRPC = grid.NewSingleHandler[*BucketOptions, *grid.Array[*BucketInfo]](grid.HandlerListBuckets, func() *BucketOptions { return &BucketOptions{} }, aoBucketInfo.New)
loadBucketMetadataRPC = grid.NewSingleHandler[*grid.MSS, grid.NoPayload](grid.HandlerLoadBucketMetadata, grid.NewMSS, grid.NewNoPayload).IgnoreNilConn()
loadGroupRPC = grid.NewSingleHandler[*grid.MSS, grid.NoPayload](grid.HandlerLoadGroup, grid.NewMSS, grid.NewNoPayload)
loadPolicyMappingRPC = grid.NewSingleHandler[*grid.MSS, grid.NoPayload](grid.HandlerLoadPolicyMapping, grid.NewMSS, grid.NewNoPayload).IgnoreNilConn()
loadPolicyRPC = grid.NewSingleHandler[*grid.MSS, grid.NoPayload](grid.HandlerLoadPolicy, grid.NewMSS, grid.NewNoPayload).IgnoreNilConn()
loadRebalanceMetaRPC = grid.NewSingleHandler[*grid.MSS, grid.NoPayload](grid.HandlerLoadRebalanceMeta, grid.NewMSS, grid.NewNoPayload)
loadSvcActRPC = grid.NewSingleHandler[*grid.MSS, grid.NoPayload](grid.HandlerLoadServiceAccount, grid.NewMSS, grid.NewNoPayload).IgnoreNilConn()
loadTransitionTierConfigRPC = grid.NewSingleHandler[*grid.MSS, grid.NoPayload](grid.HandlerLoadTransitionTierConfig, grid.NewMSS, grid.NewNoPayload)
loadUserRPC = grid.NewSingleHandler[*grid.MSS, grid.NoPayload](grid.HandlerLoadUser, grid.NewMSS, grid.NewNoPayload).IgnoreNilConn()
localStorageInfoRPC = grid.NewSingleHandler[*grid.MSS, *grid.JSON[madmin.StorageInfo]](grid.HandlerStorageInfo, grid.NewMSS, madminStorageInfo.NewJSON)
makeBucketRPC = grid.NewSingleHandler[*grid.MSS, grid.NoPayload](grid.HandlerMakeBucket, grid.NewMSS, grid.NewNoPayload)
reloadPoolMetaRPC = grid.NewSingleHandler[*grid.MSS, grid.NoPayload](grid.HandlerReloadPoolMeta, grid.NewMSS, grid.NewNoPayload)
reloadSiteReplicationConfigRPC = grid.NewSingleHandler[*grid.MSS, grid.NoPayload](grid.HandlerReloadSiteReplicationConfig, grid.NewMSS, grid.NewNoPayload)
serverInfoRPC = grid.NewSingleHandler[*grid.MSS, *grid.JSON[madmin.ServerProperties]](grid.HandlerServerInfo, grid.NewMSS, madminServerProperties.NewJSON)
signalServiceRPC = grid.NewSingleHandler[*grid.MSS, grid.NoPayload](grid.HandlerSignalService, grid.NewMSS, grid.NewNoPayload)
stopRebalanceRPC = grid.NewSingleHandler[*grid.MSS, grid.NoPayload](grid.HandlerStopRebalance, grid.NewMSS, grid.NewNoPayload)
updateMetacacheListingRPC = grid.NewSingleHandler[*metacache, *metacache](grid.HandlerUpdateMetacacheListing, func() *metacache { return &metacache{} }, func() *metacache { return &metacache{} })
// STREAMS
// Set an output capacity of 100 for consoleLog and listenRPC
// There is another buffer that will buffer events.
consoleLogRPC = grid.NewStream[*grid.MSS, grid.NoPayload, *grid.Bytes](grid.HandlerConsoleLog, grid.NewMSS, nil, grid.NewBytes).WithOutCapacity(100)
listenRPC = grid.NewStream[*grid.URLValues, grid.NoPayload, *grid.Bytes](grid.HandlerListen, grid.NewURLValues, nil, grid.NewBytes).WithOutCapacity(100)
)
// GetLocksHandler - returns list of lock from the server.
func (s *peerRESTServer) GetLocksHandler(_ *grid.MSS) (*localLockMap, *grid.RemoteErr) {
res := globalLockServer.DupLockMap()
return &res, nil
}
// DeletePolicyHandler - deletes a policy on the server.
func (s *peerRESTServer) DeletePolicyHandler(mss *grid.MSS) (np grid.NoPayload, nerr *grid.RemoteErr) {
objAPI := newObjectLayerFn()
if objAPI == nil {
return np, grid.NewRemoteErr(errServerNotInitialized)
}
policyName := mss.Get(peerRESTPolicy)
if policyName == "" {
return np, grid.NewRemoteErr(errors.New("policyName is missing"))
}
if err := globalIAMSys.DeletePolicy(context.Background(), policyName, false); err != nil {
return np, grid.NewRemoteErr(err)
}
return
}
// LoadPolicyHandler - reloads a policy on the server.
func (s *peerRESTServer) LoadPolicyHandler(mss *grid.MSS) (np grid.NoPayload, nerr *grid.RemoteErr) {
objAPI := newObjectLayerFn()
if objAPI == nil {
return np, grid.NewRemoteErr(errServerNotInitialized)
}
policyName := mss.Get(peerRESTPolicy)
if policyName == "" {
return np, grid.NewRemoteErr(errors.New("policyName is missing"))
}
if err := globalIAMSys.LoadPolicy(context.Background(), objAPI, policyName); err != nil {
return np, grid.NewRemoteErr(err)
}
return
}
// LoadPolicyMappingHandler - reloads a policy mapping on the server.
func (s *peerRESTServer) LoadPolicyMappingHandler(mss *grid.MSS) (np grid.NoPayload, nerr *grid.RemoteErr) {
objAPI := newObjectLayerFn()
if objAPI == nil {
return np, grid.NewRemoteErr(errServerNotInitialized)
}
userOrGroup := mss.Get(peerRESTUserOrGroup)
if userOrGroup == "" {
return np, grid.NewRemoteErr(errors.New("user-or-group is missing"))
}
userType, err := strconv.Atoi(mss.Get(peerRESTUserType))
if err != nil {
return np, grid.NewRemoteErr(fmt.Errorf("user-type `%s` is invalid: %w", mss.Get(peerRESTUserType), err))
}
isGroup := mss.Get(peerRESTIsGroup) == "true"
if err := globalIAMSys.LoadPolicyMapping(context.Background(), objAPI, userOrGroup, IAMUserType(userType), isGroup); err != nil {
return np, grid.NewRemoteErr(err)
}
return
}
// DeleteServiceAccountHandler - deletes a service account on the server.
func (s *peerRESTServer) DeleteServiceAccountHandler(mss *grid.MSS) (np grid.NoPayload, nerr *grid.RemoteErr) {
objAPI := newObjectLayerFn()
if objAPI == nil {
return np, grid.NewRemoteErr(errServerNotInitialized)
}
accessKey := mss.Get(peerRESTUser)
if accessKey == "" {
return np, grid.NewRemoteErr(errors.New("service account name is missing"))
}
if err := globalIAMSys.DeleteServiceAccount(context.Background(), accessKey, false); err != nil {
return np, grid.NewRemoteErr(err)
}
return
}
// LoadServiceAccountHandler - reloads a service account on the server.
func (s *peerRESTServer) LoadServiceAccountHandler(mss *grid.MSS) (np grid.NoPayload, nerr *grid.RemoteErr) {
objAPI := newObjectLayerFn()
if objAPI == nil {
return np, grid.NewRemoteErr(errServerNotInitialized)
}
accessKey := mss.Get(peerRESTUser)
if accessKey == "" {
return np, grid.NewRemoteErr(errors.New("service account name is missing"))
}
if err := globalIAMSys.LoadServiceAccount(context.Background(), accessKey); err != nil {
return np, grid.NewRemoteErr(err)
}
return
}
// DeleteUserHandler - deletes a user on the server.
func (s *peerRESTServer) DeleteUserHandler(mss *grid.MSS) (np grid.NoPayload, nerr *grid.RemoteErr) {
objAPI := newObjectLayerFn()
if objAPI == nil {
return np, grid.NewRemoteErr(errServerNotInitialized)
}
accessKey := mss.Get(peerRESTUser)
if accessKey == "" {
return np, grid.NewRemoteErr(errors.New("username is missing"))
}
if err := globalIAMSys.DeleteUser(context.Background(), accessKey, false); err != nil {
return np, grid.NewRemoteErr(err)
}
return
}
// LoadUserHandler - reloads a user on the server.
func (s *peerRESTServer) LoadUserHandler(mss *grid.MSS) (np grid.NoPayload, nerr *grid.RemoteErr) {
objAPI := newObjectLayerFn()
if objAPI == nil {
return np, grid.NewRemoteErr(errServerNotInitialized)
}
accessKey := mss.Get(peerRESTUser)
if accessKey == "" {
return np, grid.NewRemoteErr(errors.New("username is missing"))
}
temp, err := strconv.ParseBool(mss.Get(peerRESTUserTemp))
if err != nil {
return np, grid.NewRemoteErr(err)
}
userType := regUser
if temp {
userType = stsUser
}
if err = globalIAMSys.LoadUser(context.Background(), objAPI, accessKey, userType); err != nil {
return np, grid.NewRemoteErr(err)
}
return
}
// LoadGroupHandler - reloads group along with members list.
func (s *peerRESTServer) LoadGroupHandler(mss *grid.MSS) (np grid.NoPayload, nerr *grid.RemoteErr) {
objAPI := newObjectLayerFn()
if objAPI == nil {
return np, grid.NewRemoteErr(errServerNotInitialized)
}
group := mss.Get(peerRESTGroup)
if group == "" {
return np, grid.NewRemoteErr(errors.New("group is missing"))
}
err := globalIAMSys.LoadGroup(context.Background(), objAPI, group)
if err != nil {
return np, grid.NewRemoteErr(err)
}
return
}
// StartProfilingHandler - Issues the start profiling command.
func (s *peerRESTServer) StartProfilingHandler(w http.ResponseWriter, r *http.Request) {
if !s.IsValid(w, r) {
s.writeErrorResponse(w, errors.New("Invalid request"))
return
}
vars := mux.Vars(r)
profiles := strings.Split(vars[peerRESTProfiler], ",")
if len(profiles) == 0 {
s.writeErrorResponse(w, errors.New("profiler name is missing"))
return
}
globalProfilerMu.Lock()
defer globalProfilerMu.Unlock()
if globalProfiler == nil {
globalProfiler = make(map[string]minioProfiler, 10)
}
// Stop profiler of all types if already running
for k, v := range globalProfiler {
for _, p := range profiles {
if p == k {
v.Stop()
delete(globalProfiler, k)
}
}
}
for _, profiler := range profiles {
prof, err := startProfiler(profiler)
if err != nil {
s.writeErrorResponse(w, err)
return
}
globalProfiler[profiler] = prof
}
}
// DownloadProfilingDataHandler - returns profiled data.
func (s *peerRESTServer) DownloadProfilingDataHandler(w http.ResponseWriter, r *http.Request) {
if !s.IsValid(w, r) {
s.writeErrorResponse(w, errors.New("Invalid request"))
return
}
ctx := newContext(r, w, "DownloadProfiling")
profileData, err := getProfileData()
if err != nil {
s.writeErrorResponse(w, err)
return
}
peersLogIf(ctx, gob.NewEncoder(w).Encode(profileData))
}
func (s *peerRESTServer) LocalStorageInfoHandler(mss *grid.MSS) (*grid.JSON[madmin.StorageInfo], *grid.RemoteErr) {
objLayer := newObjectLayerFn()
if objLayer == nil {
return nil, grid.NewRemoteErr(errServerNotInitialized)
}
metrics, err := strconv.ParseBool(mss.Get(peerRESTMetrics))
if err != nil {
return nil, grid.NewRemoteErr(err)
}
info := objLayer.LocalStorageInfo(context.Background(), metrics)
return madminStorageInfo.NewJSONWith(&info), nil
}
// ServerInfoHandler - returns Server Info
func (s *peerRESTServer) ServerInfoHandler(params *grid.MSS) (*grid.JSON[madmin.ServerProperties], *grid.RemoteErr) {
r := http.Request{Host: globalLocalNodeName}
metrics, err := strconv.ParseBool(params.Get(peerRESTMetrics))
if err != nil {
return nil, grid.NewRemoteErr(err)
}
info := getLocalServerProperty(globalEndpoints, &r, metrics)
return madminServerProperties.NewJSONWith(&info), nil
}
// GetCPUsHandler - returns CPU info.
func (s *peerRESTServer) GetCPUsHandler(_ *grid.MSS) (*grid.JSON[madmin.CPUs], *grid.RemoteErr) {
info := madmin.GetCPUs(context.Background(), globalLocalNodeName)
return madminCPUs.NewJSONWith(&info), nil
}
// GetNetInfoHandler - returns network information.
func (s *peerRESTServer) GetNetInfoHandler(_ *grid.MSS) (*grid.JSON[madmin.NetInfo], *grid.RemoteErr) {
info := madmin.GetNetInfo(globalLocalNodeName, globalInternodeInterface)
return madminNetInfo.NewJSONWith(&info), nil
}
// GetPartitionsHandler - returns disk partition information.
func (s *peerRESTServer) GetPartitionsHandler(_ *grid.MSS) (*grid.JSON[madmin.Partitions], *grid.RemoteErr) {
info := madmin.GetPartitions(context.Background(), globalLocalNodeName)
return madminPartitions.NewJSONWith(&info), nil
}
// GetOSInfoHandler - returns operating system's information.
func (s *peerRESTServer) GetOSInfoHandler(_ *grid.MSS) (*grid.JSON[madmin.OSInfo], *grid.RemoteErr) {
info := madmin.GetOSInfo(context.Background(), globalLocalNodeName)
return madminOSInfo.NewJSONWith(&info), nil
}
// GetProcInfoHandler - returns this MinIO process information.
func (s *peerRESTServer) GetProcInfoHandler(_ *grid.MSS) (*grid.JSON[madmin.ProcInfo], *grid.RemoteErr) {
info := madmin.GetProcInfo(context.Background(), globalLocalNodeName)
return madminProcInfo.NewJSONWith(&info), nil
}
// GetMemInfoHandler - returns memory information.
func (s *peerRESTServer) GetMemInfoHandler(_ *grid.MSS) (*grid.JSON[madmin.MemInfo], *grid.RemoteErr) {
info := madmin.GetMemInfo(context.Background(), globalLocalNodeName)
return madminMemInfo.NewJSONWith(&info), nil
}
// GetMetricsHandler - returns server metrics.
func (s *peerRESTServer) GetMetricsHandler(v *grid.URLValues) (*grid.JSON[madmin.RealtimeMetrics], *grid.RemoteErr) {
values := v.Values()
var types madmin.MetricType
if t, _ := strconv.ParseUint(values.Get(peerRESTMetricsTypes), 10, 64); t != 0 {
types = madmin.MetricType(t)
} else {
types = madmin.MetricsAll
}
diskMap := make(map[string]struct{})
for _, disk := range values[peerRESTDisk] {
diskMap[disk] = struct{}{}
}
hostMap := make(map[string]struct{})
for _, host := range values[peerRESTHost] {
hostMap[host] = struct{}{}
}
info := collectLocalMetrics(types, collectMetricsOpts{
disks: diskMap,
hosts: hostMap,
jobID: values.Get(peerRESTJobID),
depID: values.Get(peerRESTDepID),
})
return madminRealtimeMetrics.NewJSONWith(&info), nil
}
// GetSysConfigHandler - returns system config information.
// (only the config that are of concern to minio)
func (s *peerRESTServer) GetSysConfigHandler(_ *grid.MSS) (*grid.JSON[madmin.SysConfig], *grid.RemoteErr) {
info := madmin.GetSysConfig(context.Background(), globalLocalNodeName)
return madminSysConfig.NewJSONWith(&info), nil
}
// GetSysServicesHandler - returns system services information.
// (only the services that are of concern to minio)
func (s *peerRESTServer) GetSysServicesHandler(_ *grid.MSS) (*grid.JSON[madmin.SysServices], *grid.RemoteErr) {
info := madmin.GetSysServices(context.Background(), globalLocalNodeName)
return madminSysServices.NewJSONWith(&info), nil
}
// GetSysErrorsHandler - returns system level errors
func (s *peerRESTServer) GetSysErrorsHandler(_ *grid.MSS) (*grid.JSON[madmin.SysErrors], *grid.RemoteErr) {
info := madmin.GetSysErrors(context.Background(), globalLocalNodeName)
return madminSysErrors.NewJSONWith(&info), nil
}
// DeleteBucketMetadataHandler - Delete in memory bucket metadata
func (s *peerRESTServer) DeleteBucketMetadataHandler(mss *grid.MSS) (np grid.NoPayload, nerr *grid.RemoteErr) {
bucketName := mss.Get(peerRESTBucket)
if bucketName == "" {
return np, grid.NewRemoteErr(errors.New("Bucket name is missing"))
}
globalReplicationStats.Delete(bucketName)
globalBucketMetadataSys.Remove(bucketName)
globalBucketTargetSys.Delete(bucketName)
globalEventNotifier.RemoveNotification(bucketName)
globalBucketConnStats.delete(bucketName)
globalBucketHTTPStats.delete(bucketName)
if localMetacacheMgr != nil {
localMetacacheMgr.deleteBucketCache(bucketName)
}
return
}
// GetAllBucketStatsHandler - fetches bucket replication stats for all buckets from this peer.
func (s *peerRESTServer) GetAllBucketStatsHandler(mss *grid.MSS) (*BucketStatsMap, *grid.RemoteErr) {
replicationStats := globalReplicationStats.GetAll()
bucketStatsMap := make(map[string]BucketStats, len(replicationStats))
for k, v := range replicationStats {
bucketStatsMap[k] = BucketStats{
ReplicationStats: v,
ProxyStats: globalReplicationStats.getProxyStats(k),
}
}
return &BucketStatsMap{Stats: bucketStatsMap, Timestamp: time.Now()}, nil
}
// GetBucketStatsHandler - fetches current in-memory bucket stats, currently only
// returns BucketStats, that currently includes ReplicationStats.
func (s *peerRESTServer) GetBucketStatsHandler(vars *grid.MSS) (*BucketStats, *grid.RemoteErr) {
bucketName := vars.Get(peerRESTBucket)
if bucketName == "" {
return nil, grid.NewRemoteErrString("Bucket name is missing")
}
bs := BucketStats{
ReplicationStats: globalReplicationStats.Get(bucketName),
QueueStats: ReplicationQueueStats{Nodes: []ReplQNodeStats{globalReplicationStats.getNodeQueueStats(bucketName)}},
ProxyStats: globalReplicationStats.getProxyStats(bucketName),
}
return &bs, nil
}
// GetSRMetricsHandler - fetches current in-memory replication stats at site level from this peer
func (s *peerRESTServer) GetSRMetricsHandler(mss *grid.MSS) (*SRMetricsSummary, *grid.RemoteErr) {
objAPI := newObjectLayerFn()
if objAPI == nil {
return nil, grid.NewRemoteErr(errServerNotInitialized)
}
sm := globalReplicationStats.getSRMetricsForNode()
return &sm, nil
}
// LoadBucketMetadataHandler - reloads in memory bucket metadata
func (s *peerRESTServer) LoadBucketMetadataHandler(mss *grid.MSS) (np grid.NoPayload, nerr *grid.RemoteErr) {
bucketName := mss.Get(peerRESTBucket)
if bucketName == "" {
return np, grid.NewRemoteErr(errors.New("Bucket name is missing"))
}
objAPI := newObjectLayerFn()
if objAPI == nil {
return np, grid.NewRemoteErr(errServerNotInitialized)
}
meta, err := loadBucketMetadata(context.Background(), objAPI, bucketName)
if err != nil {
return np, grid.NewRemoteErr(err)
}
globalBucketMetadataSys.Set(bucketName, meta)
if meta.notificationConfig != nil {
globalEventNotifier.AddRulesMap(bucketName, meta.notificationConfig.ToRulesMap())
}
if meta.bucketTargetConfig != nil {
globalBucketTargetSys.UpdateAllTargets(bucketName, meta.bucketTargetConfig)
}
return
}
func (s *peerRESTServer) GetMetacacheListingHandler(opts *listPathOptions) (*metacache, *grid.RemoteErr) {
resp := localMetacacheMgr.getBucket(context.Background(), opts.Bucket).findCache(*opts)
return &resp, nil
}
func (s *peerRESTServer) UpdateMetacacheListingHandler(req *metacache) (*metacache, *grid.RemoteErr) {
cache, err := localMetacacheMgr.updateCacheEntry(*req)
if err != nil {
return nil, grid.NewRemoteErr(err)
}
return &cache, nil
}
// PutBucketNotificationHandler - Set bucket policy.
func (s *peerRESTServer) PutBucketNotificationHandler(w http.ResponseWriter, r *http.Request) {
if !s.IsValid(w, r) {
s.writeErrorResponse(w, errors.New("Invalid request"))
return
}
vars := mux.Vars(r)
bucketName := vars[peerRESTBucket]
if bucketName == "" {
s.writeErrorResponse(w, errors.New("Bucket name is missing"))
return
}
var rulesMap event.RulesMap
if r.ContentLength < 0 {
s.writeErrorResponse(w, errInvalidArgument)
return
}
err := gob.NewDecoder(r.Body).Decode(&rulesMap)
if err != nil {
s.writeErrorResponse(w, err)
return
}
globalEventNotifier.AddRulesMap(bucketName, rulesMap)
}
// HealthHandler - returns true of health
func (s *peerRESTServer) HealthHandler(w http.ResponseWriter, r *http.Request) {
s.IsValid(w, r)
}
// VerifyBinary - verifies the downloaded binary is in-tact
func (s *peerRESTServer) VerifyBinaryHandler(w http.ResponseWriter, r *http.Request) {
if !s.IsValid(w, r) {
s.writeErrorResponse(w, errors.New("Invalid request"))
return
}
if r.ContentLength < 0 {
s.writeErrorResponse(w, errInvalidArgument)
return
}
u, err := url.Parse(r.Form.Get(peerRESTURL))
if err != nil {
s.writeErrorResponse(w, err)
return
}
sha256Sum, err := hex.DecodeString(r.Form.Get(peerRESTSha256Sum))
if err != nil {
s.writeErrorResponse(w, err)
return
}
releaseInfo := r.Form.Get(peerRESTReleaseInfo)
lrTime, err := releaseInfoToReleaseTime(releaseInfo)
if err != nil {
s.writeErrorResponse(w, err)
return
}
if lrTime.Sub(currentReleaseTime) <= 0 {
s.writeErrorResponse(w, fmt.Errorf("server is already running the latest version: %s", Version))
return
}
zr, err := zstd.NewReader(r.Body)
if err != nil {
s.writeErrorResponse(w, err)
return
}
defer zr.Close()
if err = verifyBinary(u, sha256Sum, releaseInfo, getMinioMode(), zr); err != nil {
s.writeErrorResponse(w, err)
return
}
}
// CommitBinary - overwrites the current binary with the new one.
func (s *peerRESTServer) CommitBinaryHandler(w http.ResponseWriter, r *http.Request) {
if !s.IsValid(w, r) {
s.writeErrorResponse(w, errors.New("Invalid request"))
return
}
if err := commitBinary(); err != nil {
s.writeErrorResponse(w, err)
return
}
}
var errUnsupportedSignal = fmt.Errorf("unsupported signal")
func waitingDrivesNode() map[string]madmin.DiskMetrics {
globalLocalDrivesMu.RLock()
localDrives := cloneDrives(globalLocalDrivesMap)
globalLocalDrivesMu.RUnlock()
errs := make([]error, len(localDrives))
infos := make([]DiskInfo, len(localDrives))
for i, drive := range localDrives {
infos[i], errs[i] = drive.DiskInfo(GlobalContext, DiskInfoOptions{})
}
infoMaps := make(map[string]madmin.DiskMetrics)
for i := range infos {
if infos[i].Metrics.TotalWaiting >= 1 && errors.Is(errs[i], errFaultyDisk) {
infoMaps[infos[i].Endpoint] = madmin.DiskMetrics{
TotalWaiting: infos[i].Metrics.TotalWaiting,
}
}
}
return infoMaps
}
// SignalServiceHandler - signal service handler.
func (s *peerRESTServer) SignalServiceHandler(vars *grid.MSS) (np grid.NoPayload, nerr *grid.RemoteErr) {
signalString := vars.Get(peerRESTSignal)
if signalString == "" {
return np, grid.NewRemoteErrString("signal name is missing")
}
si, err := strconv.Atoi(signalString)
if err != nil {
return np, grid.NewRemoteErr(err)
}
// Wait until the specified time before executing the signal.
if t := vars.Get(peerRESTExecAt); t != "" {
execAt, err := time.Parse(time.RFC3339Nano, vars.Get(peerRESTExecAt))
if err != nil {
logger.LogIf(GlobalContext, "signalservice", err)
execAt = time.Now().Add(restartUpdateDelay)
}
if d := time.Until(execAt); d > 0 {
time.Sleep(d)
}
}
signal := serviceSignal(si)
switch signal {
case serviceRestart, serviceStop:
dryRun := vars.Get("dry-run") == "true" // This is only supported for `restart/stop`
waitingDisks := waitingDrivesNode()
if len(waitingDisks) > 0 {
buf, err := json.Marshal(waitingDisks)
if err != nil {
return np, grid.NewRemoteErr(err)
}
return np, grid.NewRemoteErrString(string(buf))
}
if !dryRun {
globalServiceSignalCh <- signal
}
case serviceFreeze:
freezeServices()
case serviceUnFreeze:
unfreezeServices()
case serviceReloadDynamic:
objAPI := newObjectLayerFn()
if objAPI == nil {
return np, grid.NewRemoteErr(errServerNotInitialized)
}
srvCfg, err := getValidConfig(objAPI)
if err != nil {
return np, grid.NewRemoteErr(err)
}
subSys := vars.Get(peerRESTSubSys)
// Apply dynamic values.
ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
defer cancel()
if subSys == "" {
err = applyDynamicConfig(ctx, objAPI, srvCfg)
} else {
err = applyDynamicConfigForSubSys(ctx, objAPI, srvCfg, subSys)
}
if err != nil {
return np, grid.NewRemoteErr(err)
}
default:
return np, grid.NewRemoteErr(errUnsupportedSignal)
}
return np, nil
}
// ListenHandler sends http trace messages back to peer rest client
func (s *peerRESTServer) ListenHandler(ctx context.Context, v *grid.URLValues, out chan<- *grid.Bytes) *grid.RemoteErr {
values := v.Values()
defer v.Recycle()
var prefix string
if len(values[peerRESTListenPrefix]) > 1 {
return grid.NewRemoteErrString("invalid request (peerRESTListenPrefix)")
}
globalAPIConfig.getRequestsPoolCapacity()
if len(values[peerRESTListenPrefix]) == 1 {
if err := event.ValidateFilterRuleValue(values[peerRESTListenPrefix][0]); err != nil {
return grid.NewRemoteErr(err)
}
prefix = values[peerRESTListenPrefix][0]
}
var suffix string
if len(values[peerRESTListenSuffix]) > 1 {
return grid.NewRemoteErrString("invalid request (peerRESTListenSuffix)")
}
if len(values[peerRESTListenSuffix]) == 1 {
if err := event.ValidateFilterRuleValue(values[peerRESTListenSuffix][0]); err != nil {
return grid.NewRemoteErr(err)
}
suffix = values[peerRESTListenSuffix][0]
}
pattern := event.NewPattern(prefix, suffix)
var eventNames []event.Name
var mask pubsub.Mask
for _, ev := range values[peerRESTListenEvents] {
eventName, err := event.ParseName(ev)
if err != nil {
return grid.NewRemoteErr(err)
}
mask.MergeMaskable(eventName)
eventNames = append(eventNames, eventName)
}
rulesMap := event.NewRulesMap(eventNames, pattern, event.TargetID{ID: mustGetUUID()})
// Listen Publisher uses nonblocking publish and hence does not wait for slow subscribers.
// Use buffered channel to take care of burst sends or slow w.Write()
ch := make(chan event.Event, globalAPIConfig.getRequestsPoolCapacity())
err := globalHTTPListen.Subscribe(mask, ch, ctx.Done(), func(ev event.Event) bool {
if ev.S3.Bucket.Name != "" && values.Get(peerRESTListenBucket) != "" {
if ev.S3.Bucket.Name != values.Get(peerRESTListenBucket) {
return false
}
}
return rulesMap.MatchSimple(ev.EventName, ev.S3.Object.Key)
})
if err != nil {
return grid.NewRemoteErr(err)
}
// Process until remote disconnects.
// Blocks on upstream (out) congestion.
// We have however a dynamic downstream buffer (ch).
buf := bytes.NewBuffer(grid.GetByteBuffer())
enc := json.NewEncoder(buf)
tmpEvt := struct{ Records []event.Event }{[]event.Event{{}}}
for {
select {
case <-ctx.Done():
grid.PutByteBuffer(buf.Bytes())
return nil
case ev := <-ch:
buf.Reset()
tmpEvt.Records[0] = ev
if err := enc.Encode(tmpEvt); err != nil {
peersLogOnceIf(ctx, err, "event: Encode failed")
continue
}
out <- grid.NewBytesWithCopyOf(buf.Bytes())
}
}
}
// TraceHandler sends http trace messages back to peer rest client
func (s *peerRESTServer) TraceHandler(ctx context.Context, payload []byte, _ <-chan []byte, out chan<- []byte) *grid.RemoteErr {
var traceOpts madmin.ServiceTraceOpts
err := json.Unmarshal(payload, &traceOpts)
if err != nil {
return grid.NewRemoteErr(err)
}
var wg sync.WaitGroup
// Trace Publisher uses nonblocking publish and hence does not wait for slow subscribers.
// Use buffered channel to take care of burst sends or slow w.Write()
err = globalTrace.SubscribeJSON(traceOpts.TraceTypes(), out, ctx.Done(), func(entry madmin.TraceInfo) bool {
return shouldTrace(entry, traceOpts)
}, &wg)
if err != nil {
return grid.NewRemoteErr(err)
}
// Publish bootstrap events that have already occurred before client could subscribe.
if traceOpts.TraceTypes().Contains(madmin.TraceBootstrap) {
go globalBootstrapTracer.Publish(ctx, globalTrace)
}
// Wait for remote to cancel and SubscribeJSON to exit.
wg.Wait()
return nil
}
func (s *peerRESTServer) BackgroundHealStatusHandler(_ *grid.MSS) (*grid.JSON[madmin.BgHealState], *grid.RemoteErr) {
state, ok := getLocalBackgroundHealStatus(context.Background(), newObjectLayerFn())
if !ok {
return nil, grid.NewRemoteErr(errServerNotInitialized)
}
return madminBgHealState.NewJSONWith(&state), nil
}
// ReloadSiteReplicationConfigHandler - reloads site replication configuration from the disks
func (s *peerRESTServer) ReloadSiteReplicationConfigHandler(mss *grid.MSS) (np grid.NoPayload, nerr *grid.RemoteErr) {
objAPI := newObjectLayerFn()
if objAPI == nil {
return np, grid.NewRemoteErr(errServerNotInitialized)
}
peersLogIf(context.Background(), globalSiteReplicationSys.Init(context.Background(), objAPI))
return
}
func (s *peerRESTServer) ReloadPoolMetaHandler(mss *grid.MSS) (np grid.NoPayload, nerr *grid.RemoteErr) {
objAPI := newObjectLayerFn()
if objAPI == nil {
return np, grid.NewRemoteErr(errServerNotInitialized)
}
pools, ok := objAPI.(*erasureServerPools)
if !ok {
return
}
if err := pools.ReloadPoolMeta(context.Background()); err != nil {
return np, grid.NewRemoteErr(err)
}
return
}
func (s *peerRESTServer) StopRebalanceHandler(mss *grid.MSS) (np grid.NoPayload, nerr *grid.RemoteErr) {
objAPI := newObjectLayerFn()
if objAPI == nil {
return np, grid.NewRemoteErr(errServerNotInitialized)
}
pools, ok := objAPI.(*erasureServerPools)
if !ok {
return np, grid.NewRemoteErr(errors.New("not a pooled setup"))
}
pools.StopRebalance()
return
}
func (s *peerRESTServer) LoadRebalanceMetaHandler(mss *grid.MSS) (np grid.NoPayload, nerr *grid.RemoteErr) {
objAPI := newObjectLayerFn()
if objAPI == nil {
return np, grid.NewRemoteErr(errServerNotInitialized)
}
pools, ok := objAPI.(*erasureServerPools)
if !ok {
return np, grid.NewRemoteErr(errors.New("not a pooled setup"))
}
startRebalance, err := strconv.ParseBool(mss.Get(peerRESTStartRebalance))
if err != nil {
return np, grid.NewRemoteErr(err)
}
if err := pools.loadRebalanceMeta(context.Background()); err != nil {
return np, grid.NewRemoteErr(err)
}
if startRebalance {
go pools.StartRebalance()
}
return
}
func (s *peerRESTServer) LoadTransitionTierConfigHandler(mss *grid.MSS) (np grid.NoPayload, nerr *grid.RemoteErr) {
objAPI := newObjectLayerFn()
if objAPI == nil {
return np, grid.NewRemoteErr(errServerNotInitialized)
}
go func() {
err := globalTierConfigMgr.Reload(context.Background(), newObjectLayerFn())
if err != nil {
peersLogIf(context.Background(), fmt.Errorf("Failed to reload remote tier config %s", err))
}
}()
return
}
// ConsoleLogHandler sends console logs of this node back to peer rest client
func (s *peerRESTServer) ConsoleLogHandler(ctx context.Context, params *grid.MSS, out chan<- *grid.Bytes) *grid.RemoteErr {
mask, err := strconv.Atoi(params.Get(peerRESTLogMask))
if err != nil {
mask = int(madmin.LogMaskAll)
}
ch := make(chan log.Info, 1000)
err = globalConsoleSys.Subscribe(ch, ctx.Done(), "", 0, madmin.LogMask(mask), nil)
if err != nil {
return grid.NewRemoteErr(err)
}
var buf bytes.Buffer
enc := json.NewEncoder(&buf)
for {
select {
case entry, ok := <-ch:
if !ok {
return grid.NewRemoteErrString("console log channel closed")
}
if !entry.SendLog("", madmin.LogMask(mask)) {
continue
}
buf.Reset()
if err := enc.Encode(entry); err != nil {
return grid.NewRemoteErr(err)
}
out <- grid.NewBytesWithCopyOf(buf.Bytes())
case <-ctx.Done():
return grid.NewRemoteErr(ctx.Err())
}
}
}
func (s *peerRESTServer) writeErrorResponse(w http.ResponseWriter, err error) {
w.WriteHeader(http.StatusForbidden)
w.Write([]byte(err.Error()))
}
// IsValid - To authenticate and verify the time difference.
func (s *peerRESTServer) IsValid(w http.ResponseWriter, r *http.Request) bool {