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minio/cmd/peer-rest-server.go

1072 lines
30 KiB

/*
* MinIO Cloud Storage, (C) 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"
"encoding/gob"
"errors"
"fmt"
"io"
"io/ioutil"
"net/http"
"strconv"
"strings"
"time"
"github.com/gorilla/mux"
"github.com/minio/minio/cmd/logger"
"github.com/minio/minio/pkg/event"
"github.com/minio/minio/pkg/madmin"
trace "github.com/minio/minio/pkg/trace"
)
// To abstract a node over network.
type peerRESTServer struct{}
// GetLocksHandler - returns list of older lock from the server.
func (s *peerRESTServer) GetLocksHandler(w http.ResponseWriter, r *http.Request) {
if !s.IsValid(w, r) {
s.writeErrorResponse(w, errors.New("Invalid request"))
return
}
ctx := newContext(r, w, "GetLocks")
var llockers []map[string][]lockRequesterInfo
for _, llocker := range globalLockServers {
llockers = append(llockers, llocker.DupLockMap())
}
logger.LogIf(ctx, gob.NewEncoder(w).Encode(llockers))
w.(http.Flusher).Flush()
}
// DeletePolicyHandler - deletes a policy on the server.
func (s *peerRESTServer) DeletePolicyHandler(w http.ResponseWriter, r *http.Request) {
if !s.IsValid(w, r) {
s.writeErrorResponse(w, errors.New("Invalid request"))
return
}
objAPI := newObjectLayerWithoutSafeModeFn()
if objAPI == nil {
s.writeErrorResponse(w, errServerNotInitialized)
return
}
if globalIAMSys == nil {
s.writeErrorResponse(w, errServerNotInitialized)
return
}
vars := mux.Vars(r)
policyName := vars[peerRESTPolicy]
if policyName == "" {
s.writeErrorResponse(w, errors.New("policyName is missing"))
return
}
if err := globalIAMSys.DeletePolicy(policyName); err != nil {
s.writeErrorResponse(w, err)
return
}
w.(http.Flusher).Flush()
}
// LoadPolicyHandler - reloads a policy on the server.
func (s *peerRESTServer) LoadPolicyHandler(w http.ResponseWriter, r *http.Request) {
if !s.IsValid(w, r) {
s.writeErrorResponse(w, errors.New("Invalid request"))
return
}
objAPI := newObjectLayerWithoutSafeModeFn()
if objAPI == nil {
s.writeErrorResponse(w, errServerNotInitialized)
return
}
if globalIAMSys == nil {
s.writeErrorResponse(w, errServerNotInitialized)
return
}
vars := mux.Vars(r)
policyName := vars[peerRESTPolicy]
if policyName == "" {
s.writeErrorResponse(w, errors.New("policyName is missing"))
return
}
if err := globalIAMSys.LoadPolicy(objAPI, policyName); err != nil {
s.writeErrorResponse(w, err)
return
}
w.(http.Flusher).Flush()
}
// LoadPolicyMappingHandler - reloads a policy mapping on the server.
func (s *peerRESTServer) LoadPolicyMappingHandler(w http.ResponseWriter, r *http.Request) {
if !s.IsValid(w, r) {
s.writeErrorResponse(w, errors.New("Invalid request"))
return
}
objAPI := newObjectLayerWithoutSafeModeFn()
if objAPI == nil {
s.writeErrorResponse(w, errServerNotInitialized)
return
}
if globalIAMSys == nil {
s.writeErrorResponse(w, errServerNotInitialized)
return
}
vars := mux.Vars(r)
userOrGroup := vars[peerRESTUserOrGroup]
if userOrGroup == "" {
s.writeErrorResponse(w, errors.New("user-or-group is missing"))
return
}
_, isGroup := vars[peerRESTIsGroup]
if err := globalIAMSys.LoadPolicyMapping(objAPI, userOrGroup, isGroup); err != nil {
s.writeErrorResponse(w, err)
return
}
w.(http.Flusher).Flush()
}
// DeleteServiceAccountHandler - deletes a service account on the server.
func (s *peerRESTServer) DeleteServiceAccountHandler(w http.ResponseWriter, r *http.Request) {
if !s.IsValid(w, r) {
s.writeErrorResponse(w, errors.New("Invalid request"))
return
}
objAPI := newObjectLayerWithoutSafeModeFn()
if objAPI == nil {
s.writeErrorResponse(w, errServerNotInitialized)
return
}
if globalIAMSys == nil {
s.writeErrorResponse(w, errServerNotInitialized)
return
}
vars := mux.Vars(r)
accessKey := vars[peerRESTUser]
if accessKey == "" {
s.writeErrorResponse(w, errors.New("service account name is missing"))
return
}
if err := globalIAMSys.DeleteServiceAccount(r.Context(), accessKey); err != nil {
s.writeErrorResponse(w, err)
return
}
w.(http.Flusher).Flush()
}
// LoadServiceAccountHandler - reloads a service account on the server.
func (s *peerRESTServer) LoadServiceAccountHandler(w http.ResponseWriter, r *http.Request) {
if !s.IsValid(w, r) {
s.writeErrorResponse(w, errors.New("Invalid request"))
return
}
objAPI := newObjectLayerWithoutSafeModeFn()
if objAPI == nil {
s.writeErrorResponse(w, errServerNotInitialized)
return
}
if globalIAMSys == nil {
s.writeErrorResponse(w, errServerNotInitialized)
return
}
vars := mux.Vars(r)
accessKey := vars[peerRESTUser]
if accessKey == "" {
s.writeErrorResponse(w, errors.New("service account parameter is missing"))
return
}
if err := globalIAMSys.LoadServiceAccount(accessKey); err != nil {
s.writeErrorResponse(w, err)
return
}
w.(http.Flusher).Flush()
}
// DeleteUserHandler - deletes a user on the server.
func (s *peerRESTServer) DeleteUserHandler(w http.ResponseWriter, r *http.Request) {
if !s.IsValid(w, r) {
s.writeErrorResponse(w, errors.New("Invalid request"))
return
}
objAPI := newObjectLayerWithoutSafeModeFn()
if objAPI == nil {
s.writeErrorResponse(w, errServerNotInitialized)
return
}
if globalIAMSys == nil {
s.writeErrorResponse(w, errServerNotInitialized)
return
}
vars := mux.Vars(r)
accessKey := vars[peerRESTUser]
if accessKey == "" {
s.writeErrorResponse(w, errors.New("username is missing"))
return
}
if err := globalIAMSys.DeleteUser(accessKey); err != nil {
s.writeErrorResponse(w, err)
return
}
w.(http.Flusher).Flush()
}
// LoadUserHandler - reloads a user on the server.
func (s *peerRESTServer) LoadUserHandler(w http.ResponseWriter, r *http.Request) {
if !s.IsValid(w, r) {
s.writeErrorResponse(w, errors.New("Invalid request"))
return
}
objAPI := newObjectLayerWithoutSafeModeFn()
if objAPI == nil {
s.writeErrorResponse(w, errServerNotInitialized)
return
}
if globalIAMSys == nil {
s.writeErrorResponse(w, errServerNotInitialized)
return
}
vars := mux.Vars(r)
accessKey := vars[peerRESTUser]
if accessKey == "" {
s.writeErrorResponse(w, errors.New("username is missing"))
return
}
temp, err := strconv.ParseBool(vars[peerRESTUserTemp])
if err != nil {
s.writeErrorResponse(w, err)
return
}
var userType = regularUser
if temp {
userType = stsUser
}
if err = globalIAMSys.LoadUser(objAPI, accessKey, userType); err != nil {
s.writeErrorResponse(w, err)
return
}
w.(http.Flusher).Flush()
}
// LoadGroupHandler - reloads group along with members list.
func (s *peerRESTServer) LoadGroupHandler(w http.ResponseWriter, r *http.Request) {
if !s.IsValid(w, r) {
s.writeErrorResponse(w, errors.New("Invalid request"))
return
}
objAPI := newObjectLayerWithoutSafeModeFn()
if objAPI == nil {
s.writeErrorResponse(w, errServerNotInitialized)
return
}
if globalIAMSys == nil {
s.writeErrorResponse(w, errServerNotInitialized)
return
}
vars := mux.Vars(r)
group := vars[peerRESTGroup]
err := globalIAMSys.LoadGroup(objAPI, group)
if err != nil {
s.writeErrorResponse(w, err)
return
}
w.(http.Flusher).Flush()
}
// 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
}
w.(http.Flusher).Flush()
}
// 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
}
defer w.(http.Flusher).Flush()
logger.LogIf(ctx, gob.NewEncoder(w).Encode(profileData))
}
// ServerInfoHandler - returns Server Info
func (s *peerRESTServer) ServerInfoHandler(w http.ResponseWriter, r *http.Request) {
if !s.IsValid(w, r) {
s.writeErrorResponse(w, errors.New("Invalid request"))
return
}
ctx := newContext(r, w, "ServerInfo")
info := getLocalServerProperty(globalEndpoints, r)
defer w.(http.Flusher).Flush()
logger.LogIf(ctx, gob.NewEncoder(w).Encode(info))
}
func (s *peerRESTServer) NetOBDInfoHandler(w http.ResponseWriter, r *http.Request) {
ctx := newContext(r, w, "NetOBDInfo")
if !s.IsValid(w, r) {
s.writeErrorResponse(w, errors.New("Invalid request"))
return
}
// Use this trailer to send additional headers after sending body
w.Header().Set("Trailer", "FinalStatus")
w.Header().Set("Content-Type", "application/octet-stream")
w.WriteHeader(http.StatusOK)
n, err := io.Copy(ioutil.Discard, r.Body)
if err == io.ErrUnexpectedEOF {
w.Header().Set("FinalStatus", err.Error())
return
}
if err != nil && err != io.EOF {
logger.LogIf(ctx, err)
w.Header().Set("FinalStatus", err.Error())
return
}
if n != r.ContentLength {
err := fmt.Errorf("OBD: short read: expected %d found %d", r.ContentLength, n)
logger.LogIf(ctx, err)
w.Header().Set("FinalStatus", err.Error())
return
}
w.Header().Set("FinalStatus", "Success")
w.(http.Flusher).Flush()
}
func (s *peerRESTServer) DispatchNetOBDInfoHandler(w http.ResponseWriter, r *http.Request) {
if !s.IsValid(w, r) {
s.writeErrorResponse(w, errors.New("Invalid request"))
return
}
done := keepHTTPResponseAlive(w)
ctx := newContext(r, w, "DispatchNetOBDInfo")
info := globalNotificationSys.NetOBDInfo(ctx)
done(nil)
logger.LogIf(ctx, gob.NewEncoder(w).Encode(info))
w.(http.Flusher).Flush()
}
// DriveOBDInfoHandler - returns Drive OBD info.
func (s *peerRESTServer) DriveOBDInfoHandler(w http.ResponseWriter, r *http.Request) {
if !s.IsValid(w, r) {
s.writeErrorResponse(w, errors.New("Invalid request"))
return
}
ctx, cancel := context.WithCancel(newContext(r, w, "DriveOBDInfo"))
defer cancel()
infoSerial := getLocalDrivesOBD(ctx, false, globalEndpoints, r)
infoParallel := getLocalDrivesOBD(ctx, true, globalEndpoints, r)
errStr := ""
if infoSerial.Error != "" {
errStr = "serial: " + infoSerial.Error
}
if infoParallel.Error != "" {
errStr = errStr + " parallel: " + infoParallel.Error
}
info := madmin.ServerDrivesOBDInfo{
Addr: infoSerial.Addr,
Serial: infoSerial.Serial,
Parallel: infoParallel.Parallel,
Error: errStr,
}
defer w.(http.Flusher).Flush()
logger.LogIf(ctx, gob.NewEncoder(w).Encode(info))
}
// CPUOBDInfoHandler - returns CPU OBD info.
func (s *peerRESTServer) CPUOBDInfoHandler(w http.ResponseWriter, r *http.Request) {
if !s.IsValid(w, r) {
s.writeErrorResponse(w, errors.New("Invalid request"))
return
}
ctx, cancel := context.WithCancel(r.Context())
defer cancel()
info := getLocalCPUOBDInfo(ctx, r)
defer w.(http.Flusher).Flush()
logger.LogIf(ctx, gob.NewEncoder(w).Encode(info))
}
// DiskHwOBDInfoHandler - returns Disk HW OBD info.
func (s *peerRESTServer) DiskHwOBDInfoHandler(w http.ResponseWriter, r *http.Request) {
if !s.IsValid(w, r) {
s.writeErrorResponse(w, errors.New("Invalid request"))
return
}
ctx, cancel := context.WithCancel(r.Context())
defer cancel()
info := getLocalDiskHwOBD(ctx, r)
defer w.(http.Flusher).Flush()
logger.LogIf(ctx, gob.NewEncoder(w).Encode(info))
}
// OsOBDInfoHandler - returns Os OBD info.
func (s *peerRESTServer) OsOBDInfoHandler(w http.ResponseWriter, r *http.Request) {
if !s.IsValid(w, r) {
s.writeErrorResponse(w, errors.New("Invalid request"))
return
}
ctx, cancel := context.WithCancel(r.Context())
defer cancel()
info := getLocalOsInfoOBD(ctx, r)
defer w.(http.Flusher).Flush()
logger.LogIf(ctx, gob.NewEncoder(w).Encode(info))
}
// ProcOBDInfoHandler - returns Proc OBD info.
func (s *peerRESTServer) ProcOBDInfoHandler(w http.ResponseWriter, r *http.Request) {
if !s.IsValid(w, r) {
s.writeErrorResponse(w, errors.New("Invalid request"))
return
}
ctx, cancel := context.WithCancel(r.Context())
defer cancel()
info := getLocalProcOBD(ctx, r)
defer w.(http.Flusher).Flush()
logger.LogIf(ctx, gob.NewEncoder(w).Encode(info))
}
// MemOBDInfoHandler - returns Mem OBD info.
func (s *peerRESTServer) MemOBDInfoHandler(w http.ResponseWriter, r *http.Request) {
if !s.IsValid(w, r) {
s.writeErrorResponse(w, errors.New("Invalid request"))
return
}
ctx, cancel := context.WithCancel(r.Context())
defer cancel()
info := getLocalMemOBD(ctx, r)
defer w.(http.Flusher).Flush()
logger.LogIf(ctx, gob.NewEncoder(w).Encode(info))
}
// DeleteBucketMetadataHandler - Delete in memory bucket metadata
func (s *peerRESTServer) DeleteBucketMetadataHandler(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
}
globalBucketMetadataSys.Remove(bucketName)
w.(http.Flusher).Flush()
}
// LoadBucketMetadataHandler - reloads in memory bucket metadata
func (s *peerRESTServer) LoadBucketMetadataHandler(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
}
objAPI := newObjectLayerWithoutSafeModeFn()
if objAPI == nil {
s.writeErrorResponse(w, errServerNotInitialized)
return
}
meta, err := loadBucketMetadata(r.Context(), objAPI, bucketName)
if err != nil {
s.writeErrorResponse(w, err)
return
}
globalBucketMetadataSys.Set(bucketName, meta)
if meta.notificationConfig != nil {
globalNotificationSys.AddRulesMap(bucketName, meta.notificationConfig.ToRulesMap())
}
if meta.bucketTargetConfig != nil {
globalBucketTargetSys.UpdateTarget(bucketName, meta.bucketTargetConfig)
}
}
// ReloadFormatHandler - Reload Format.
func (s *peerRESTServer) ReloadFormatHandler(w http.ResponseWriter, r *http.Request) {
if !s.IsValid(w, r) {
s.writeErrorResponse(w, errors.New("Invalid request"))
return
}
vars := mux.Vars(r)
dryRunString := vars[peerRESTDryRun]
if dryRunString == "" {
s.writeErrorResponse(w, errors.New("dry-run parameter is missing"))
return
}
var dryRun bool
switch strings.ToLower(dryRunString) {
case "true":
dryRun = true
case "false":
dryRun = false
default:
s.writeErrorResponse(w, errInvalidArgument)
return
}
objAPI := newObjectLayerWithoutSafeModeFn()
if objAPI == nil {
s.writeErrorResponse(w, errServerNotInitialized)
return
}
err := objAPI.ReloadFormat(GlobalContext, dryRun)
if err != nil {
s.writeErrorResponse(w, err)
return
}
w.(http.Flusher).Flush()
}
// CycleServerBloomFilterHandler cycles bllom filter on server.
func (s *peerRESTServer) CycleServerBloomFilterHandler(w http.ResponseWriter, r *http.Request) {
if !s.IsValid(w, r) {
s.writeErrorResponse(w, errors.New("Invalid request"))
return
}
ctx := newContext(r, w, "CycleServerBloomFilter")
var req bloomFilterRequest
err := gob.NewDecoder(r.Body).Decode(&req)
if err != nil {
s.writeErrorResponse(w, err)
return
}
bf, err := intDataUpdateTracker.cycleFilter(ctx, req.Oldest, req.Current)
if err != nil {
s.writeErrorResponse(w, err)
return
}
logger.LogIf(ctx, gob.NewEncoder(w).Encode(bf))
}
// 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
}
globalNotificationSys.AddRulesMap(bucketName, rulesMap)
w.(http.Flusher).Flush()
}
// Return disk IDs of all the local disks.
func getLocalDiskIDs(z *erasureZones) []string {
var ids []string
for zoneIdx := range z.zones {
for _, set := range z.zones[zoneIdx].sets {
disks := set.getDisks()
for _, disk := range disks {
if disk == nil {
continue
}
if disk.IsLocal() {
id, err := disk.GetDiskID()
if err != nil {
continue
}
if id == "" {
continue
}
ids = append(ids, id)
}
}
}
}
return ids
}
// HealthHandler - returns true of health
func (s *peerRESTServer) HealthHandler(w http.ResponseWriter, r *http.Request) {
s.IsValid(w, r)
}
// GetLocalDiskIDs - Return disk IDs of all the local disks.
func (s *peerRESTServer) GetLocalDiskIDs(w http.ResponseWriter, r *http.Request) {
if !s.IsValid(w, r) {
s.writeErrorResponse(w, errors.New("Invalid request"))
return
}
ctx := newContext(r, w, "GetLocalDiskIDs")
objLayer := newObjectLayerWithoutSafeModeFn()
// Service not initialized yet
if objLayer == nil {
s.writeErrorResponse(w, errServerNotInitialized)
return
}
z, ok := objLayer.(*erasureZones)
if !ok {
s.writeErrorResponse(w, errServerNotInitialized)
return
}
ids := getLocalDiskIDs(z)
logger.LogIf(ctx, gob.NewEncoder(w).Encode(ids))
w.(http.Flusher).Flush()
}
// ServerUpdateHandler - updates the current server.
func (s *peerRESTServer) ServerUpdateHandler(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
}
var info serverUpdateInfo
err := gob.NewDecoder(r.Body).Decode(&info)
if err != nil {
s.writeErrorResponse(w, err)
return
}
if _, err = updateServer(info.URL, info.Sha256Sum, info.Time, getMinioMode()); err != nil {
s.writeErrorResponse(w, err)
return
}
}
var errUnsupportedSignal = fmt.Errorf("unsupported signal: only restart and stop signals are supported")
// SignalServiceHandler - signal service handler.
func (s *peerRESTServer) SignalServiceHandler(w http.ResponseWriter, r *http.Request) {
if !s.IsValid(w, r) {
s.writeErrorResponse(w, errors.New("Invalid request"))
return
}
vars := mux.Vars(r)
signalString := vars[peerRESTSignal]
if signalString == "" {
s.writeErrorResponse(w, errors.New("signal name is missing"))
return
}
si, err := strconv.Atoi(signalString)
if err != nil {
s.writeErrorResponse(w, err)
return
}
signal := serviceSignal(si)
defer w.(http.Flusher).Flush()
switch signal {
case serviceRestart:
globalServiceSignalCh <- signal
case serviceStop:
globalServiceSignalCh <- signal
default:
s.writeErrorResponse(w, errUnsupportedSignal)
return
}
}
// ListenHandler sends http trace messages back to peer rest client
func (s *peerRESTServer) ListenHandler(w http.ResponseWriter, r *http.Request) {
if !s.IsValid(w, r) {
s.writeErrorResponse(w, errors.New("Invalid request"))
return
}
values := r.URL.Query()
var prefix string
if len(values[peerRESTListenPrefix]) > 1 {
s.writeErrorResponse(w, errors.New("Invalid request"))
return
}
if len(values[peerRESTListenPrefix]) == 1 {
if err := event.ValidateFilterRuleValue(values[peerRESTListenPrefix][0]); err != nil {
s.writeErrorResponse(w, err)
return
}
prefix = values[peerRESTListenPrefix][0]
}
var suffix string
if len(values[peerRESTListenSuffix]) > 1 {
s.writeErrorResponse(w, errors.New("Invalid request"))
return
}
if len(values[peerRESTListenSuffix]) == 1 {
if err := event.ValidateFilterRuleValue(values[peerRESTListenSuffix][0]); err != nil {
s.writeErrorResponse(w, err)
return
}
suffix = values[peerRESTListenSuffix][0]
}
pattern := event.NewPattern(prefix, suffix)
var eventNames []event.Name
for _, ev := range values[peerRESTListenEvents] {
eventName, err := event.ParseName(ev)
if err != nil {
s.writeErrorResponse(w, err)
return
}
eventNames = append(eventNames, eventName)
}
rulesMap := event.NewRulesMap(eventNames, pattern, event.TargetID{ID: mustGetUUID()})
w.WriteHeader(http.StatusOK)
w.(http.Flusher).Flush()
doneCh := make(chan struct{})
defer close(doneCh)
// 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 interface{}, 2000)
globalHTTPListen.Subscribe(ch, doneCh, func(evI interface{}) bool {
ev, ok := evI.(event.Event)
if !ok {
return false
}
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)
})
keepAliveTicker := time.NewTicker(500 * time.Millisecond)
defer keepAliveTicker.Stop()
enc := gob.NewEncoder(w)
for {
select {
case ev := <-ch:
if err := enc.Encode(ev); err != nil {
return
}
w.(http.Flusher).Flush()
case <-keepAliveTicker.C:
if err := enc.Encode(&event.Event{}); err != nil {
return
}
w.(http.Flusher).Flush()
}
}
}
// TraceHandler sends http trace messages back to peer rest client
func (s *peerRESTServer) TraceHandler(w http.ResponseWriter, r *http.Request) {
if !s.IsValid(w, r) {
s.writeErrorResponse(w, errors.New("Invalid request"))
return
}
trcAll := r.URL.Query().Get(peerRESTTraceAll) == "true"
trcErr := r.URL.Query().Get(peerRESTTraceErr) == "true"
w.WriteHeader(http.StatusOK)
w.(http.Flusher).Flush()
doneCh := make(chan struct{})
defer close(doneCh)
// 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()
ch := make(chan interface{}, 2000)
globalHTTPTrace.Subscribe(ch, doneCh, func(entry interface{}) bool {
return mustTrace(entry, trcAll, trcErr)
})
keepAliveTicker := time.NewTicker(500 * time.Millisecond)
defer keepAliveTicker.Stop()
enc := gob.NewEncoder(w)
for {
select {
case entry := <-ch:
if err := enc.Encode(entry); err != nil {
return
}
w.(http.Flusher).Flush()
case <-keepAliveTicker.C:
if err := enc.Encode(&trace.Info{}); err != nil {
return
}
w.(http.Flusher).Flush()
}
}
}
func (s *peerRESTServer) BackgroundHealStatusHandler(w http.ResponseWriter, r *http.Request) {
if !s.IsValid(w, r) {
s.writeErrorResponse(w, errors.New("invalid request"))
return
}
ctx := newContext(r, w, "BackgroundHealStatus")
state, ok := getLocalBackgroundHealStatus()
if !ok {
s.writeErrorResponse(w, errServerNotInitialized)
return
}
defer w.(http.Flusher).Flush()
logger.LogIf(ctx, gob.NewEncoder(w).Encode(state))
}
// ConsoleLogHandler sends console logs of this node back to peer rest client
func (s *peerRESTServer) ConsoleLogHandler(w http.ResponseWriter, r *http.Request) {
if !s.IsValid(w, r) {
s.writeErrorResponse(w, errors.New("Invalid request"))
return
}
w.Header().Set("Connection", "close")
w.WriteHeader(http.StatusOK)
w.(http.Flusher).Flush()
doneCh := make(chan struct{})
defer close(doneCh)
ch := make(chan interface{}, 2000)
globalConsoleSys.Subscribe(ch, doneCh, "", 0, string(logger.All), nil)
enc := gob.NewEncoder(w)
for {
select {
case entry := <-ch:
if err := enc.Encode(entry); err != nil {
return
}
w.(http.Flusher).Flush()
case <-r.Context().Done():
return
}
}
}
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 {
if err := storageServerRequestValidate(r); err != nil {
s.writeErrorResponse(w, err)
return false
}
return true
}
// registerPeerRESTHandlers - register peer rest router.
func registerPeerRESTHandlers(router *mux.Router) {
server := &peerRESTServer{}
subrouter := router.PathPrefix(peerRESTPrefix).Subrouter()
subrouter.Methods(http.MethodPost).Path(peerRESTVersionPrefix + peerRESTMethodHealth).HandlerFunc(httpTraceHdrs(server.HealthHandler))
subrouter.Methods(http.MethodPost).Path(peerRESTVersionPrefix + peerRESTMethodGetLocks).HandlerFunc(httpTraceHdrs(server.GetLocksHandler))
subrouter.Methods(http.MethodPost).Path(peerRESTVersionPrefix + peerRESTMethodServerInfo).HandlerFunc(httpTraceHdrs(server.ServerInfoHandler))
subrouter.Methods(http.MethodPost).Path(peerRESTVersionPrefix + peerRESTMethodProcOBDInfo).HandlerFunc(httpTraceHdrs(server.ProcOBDInfoHandler))
subrouter.Methods(http.MethodPost).Path(peerRESTVersionPrefix + peerRESTMethodMemOBDInfo).HandlerFunc(httpTraceHdrs(server.MemOBDInfoHandler))
subrouter.Methods(http.MethodPost).Path(peerRESTVersionPrefix + peerRESTMethodOsInfoOBDInfo).HandlerFunc(httpTraceHdrs(server.OsOBDInfoHandler))
subrouter.Methods(http.MethodPost).Path(peerRESTVersionPrefix + peerRESTMethodDiskHwOBDInfo).HandlerFunc(httpTraceHdrs(server.DiskHwOBDInfoHandler))
subrouter.Methods(http.MethodPost).Path(peerRESTVersionPrefix + peerRESTMethodCPUOBDInfo).HandlerFunc(httpTraceHdrs(server.CPUOBDInfoHandler))
subrouter.Methods(http.MethodPost).Path(peerRESTVersionPrefix + peerRESTMethodDriveOBDInfo).HandlerFunc(httpTraceHdrs(server.DriveOBDInfoHandler))
subrouter.Methods(http.MethodPost).Path(peerRESTVersionPrefix + peerRESTMethodNetOBDInfo).HandlerFunc(httpTraceHdrs(server.NetOBDInfoHandler))
subrouter.Methods(http.MethodPost).Path(peerRESTVersionPrefix + peerRESTMethodDispatchNetOBDInfo).HandlerFunc(httpTraceHdrs(server.DispatchNetOBDInfoHandler))
subrouter.Methods(http.MethodPost).Path(peerRESTVersionPrefix + peerRESTMethodCycleBloom).HandlerFunc(httpTraceHdrs(server.CycleServerBloomFilterHandler))
subrouter.Methods(http.MethodPost).Path(peerRESTVersionPrefix + peerRESTMethodDeleteBucketMetadata).HandlerFunc(httpTraceHdrs(server.DeleteBucketMetadataHandler)).Queries(restQueries(peerRESTBucket)...)
subrouter.Methods(http.MethodPost).Path(peerRESTVersionPrefix + peerRESTMethodLoadBucketMetadata).HandlerFunc(httpTraceHdrs(server.LoadBucketMetadataHandler)).Queries(restQueries(peerRESTBucket)...)
subrouter.Methods(http.MethodPost).Path(peerRESTVersionPrefix + peerRESTMethodSignalService).HandlerFunc(httpTraceHdrs(server.SignalServiceHandler)).Queries(restQueries(peerRESTSignal)...)
subrouter.Methods(http.MethodPost).Path(peerRESTVersionPrefix + peerRESTMethodServerUpdate).HandlerFunc(httpTraceHdrs(server.ServerUpdateHandler))
subrouter.Methods(http.MethodPost).Path(peerRESTVersionPrefix + peerRESTMethodDeletePolicy).HandlerFunc(httpTraceAll(server.DeletePolicyHandler)).Queries(restQueries(peerRESTPolicy)...)
subrouter.Methods(http.MethodPost).Path(peerRESTVersionPrefix + peerRESTMethodLoadPolicy).HandlerFunc(httpTraceAll(server.LoadPolicyHandler)).Queries(restQueries(peerRESTPolicy)...)
subrouter.Methods(http.MethodPost).Path(peerRESTVersionPrefix + peerRESTMethodLoadPolicyMapping).HandlerFunc(httpTraceAll(server.LoadPolicyMappingHandler)).Queries(restQueries(peerRESTUserOrGroup)...)
subrouter.Methods(http.MethodPost).Path(peerRESTVersionPrefix + peerRESTMethodDeleteUser).HandlerFunc(httpTraceAll(server.DeleteUserHandler)).Queries(restQueries(peerRESTUser)...)
subrouter.Methods(http.MethodPost).Path(peerRESTVersionPrefix + peerRESTMethodDeleteServiceAccount).HandlerFunc(httpTraceAll(server.DeleteServiceAccountHandler)).Queries(restQueries(peerRESTUser)...)
subrouter.Methods(http.MethodPost).Path(peerRESTVersionPrefix + peerRESTMethodLoadUser).HandlerFunc(httpTraceAll(server.LoadUserHandler)).Queries(restQueries(peerRESTUser, peerRESTUserTemp)...)
subrouter.Methods(http.MethodPost).Path(peerRESTVersionPrefix + peerRESTMethodLoadServiceAccount).HandlerFunc(httpTraceAll(server.LoadServiceAccountHandler)).Queries(restQueries(peerRESTUser)...)
subrouter.Methods(http.MethodPost).Path(peerRESTVersionPrefix + peerRESTMethodLoadGroup).HandlerFunc(httpTraceAll(server.LoadGroupHandler)).Queries(restQueries(peerRESTGroup)...)
subrouter.Methods(http.MethodPost).Path(peerRESTVersionPrefix + peerRESTMethodStartProfiling).HandlerFunc(httpTraceAll(server.StartProfilingHandler)).Queries(restQueries(peerRESTProfiler)...)
subrouter.Methods(http.MethodPost).Path(peerRESTVersionPrefix + peerRESTMethodDownloadProfilingData).HandlerFunc(httpTraceHdrs(server.DownloadProfilingDataHandler))
subrouter.Methods(http.MethodPost).Path(peerRESTVersionPrefix + peerRESTMethodReloadFormat).HandlerFunc(httpTraceHdrs(server.ReloadFormatHandler)).Queries(restQueries(peerRESTDryRun)...)
subrouter.Methods(http.MethodPost).Path(peerRESTVersionPrefix + peerRESTMethodTrace).HandlerFunc(server.TraceHandler)
subrouter.Methods(http.MethodPost).Path(peerRESTVersionPrefix + peerRESTMethodListen).HandlerFunc(httpTraceHdrs(server.ListenHandler))
subrouter.Methods(http.MethodPost).Path(peerRESTVersionPrefix + peerRESTMethodBackgroundHealStatus).HandlerFunc(server.BackgroundHealStatusHandler)
subrouter.Methods(http.MethodPost).Path(peerRESTVersionPrefix + peerRESTMethodLog).HandlerFunc(server.ConsoleLogHandler)
subrouter.Methods(http.MethodPost).Path(peerRESTVersionPrefix + peerRESTMethodGetLocalDiskIDs).HandlerFunc(httpTraceHdrs(server.GetLocalDiskIDs))
}