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minio/cmd/notification.go

1416 lines
38 KiB

/*
* MinIO Cloud Storage, (C) 2018, 2019 MinIO, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package cmd
import (
"bytes"
"context"
"encoding/json"
"encoding/xml"
"fmt"
"io"
"net/url"
"path"
"sort"
"strings"
"sync"
"time"
"github.com/klauspost/compress/zip"
"github.com/minio/minio-go/v6/pkg/set"
"github.com/minio/minio/cmd/crypto"
"github.com/minio/minio/cmd/logger"
bucketsse "github.com/minio/minio/pkg/bucket/encryption"
"github.com/minio/minio/pkg/bucket/lifecycle"
objectlock "github.com/minio/minio/pkg/bucket/object/lock"
"github.com/minio/minio/pkg/bucket/policy"
"github.com/minio/minio/pkg/event"
"github.com/minio/minio/pkg/madmin"
xnet "github.com/minio/minio/pkg/net"
"github.com/minio/minio/pkg/sync/errgroup"
"github.com/willf/bloom"
)
// NotificationSys - notification system.
type NotificationSys struct {
sync.RWMutex
targetList *event.TargetList
targetResCh chan event.TargetIDResult
bucketRulesMap map[string]event.RulesMap
bucketRemoteTargetRulesMap map[string]map[event.TargetID]event.RulesMap
peerClients []*peerRESTClient
}
// GetARNList - returns available ARNs.
func (sys *NotificationSys) GetARNList(onlyActive bool) []string {
arns := []string{}
if sys == nil {
return arns
}
region := globalServerRegion
for targetID, target := range sys.targetList.TargetMap() {
// httpclient target is part of ListenBucketNotification
// which doesn't need to be listed as part of the ARN list
// This list is only meant for external targets, filter
// this out pro-actively.
if !strings.HasPrefix(targetID.ID, "httpclient+") {
if onlyActive && !target.HasQueueStore() {
if _, err := target.IsActive(); err != nil {
continue
}
}
arns = append(arns, targetID.ToARN(region).String())
}
}
return arns
}
// NotificationPeerErr returns error associated for a remote peer.
type NotificationPeerErr struct {
Host xnet.Host // Remote host on which the rpc call was initiated
Err error // Error returned by the remote peer for an rpc call
}
// A NotificationGroup is a collection of goroutines working on subtasks that are part of
// the same overall task.
//
// A zero NotificationGroup is valid and does not cancel on error.
type NotificationGroup struct {
wg sync.WaitGroup
errs []NotificationPeerErr
}
// WithNPeers returns a new NotificationGroup with length of errs slice upto nerrs,
// upon Wait() errors are returned collected from all tasks.
func WithNPeers(nerrs int) *NotificationGroup {
return &NotificationGroup{errs: make([]NotificationPeerErr, nerrs)}
}
// Wait blocks until all function calls from the Go method have returned, then
// returns the slice of errors from all function calls.
func (g *NotificationGroup) Wait() []NotificationPeerErr {
g.wg.Wait()
return g.errs
}
// Go calls the given function in a new goroutine.
//
// The first call to return a non-nil error will be
// collected in errs slice and returned by Wait().
func (g *NotificationGroup) Go(ctx context.Context, f func() error, index int, addr xnet.Host) {
g.wg.Add(1)
go func() {
defer g.wg.Done()
g.errs[index] = NotificationPeerErr{
Host: addr,
}
for i := 0; i < 3; i++ {
if err := f(); err != nil {
g.errs[index].Err = err
// Last iteration log the error.
if i == 2 {
reqInfo := (&logger.ReqInfo{}).AppendTags("peerAddress", addr.String())
ctx := logger.SetReqInfo(ctx, reqInfo)
logger.LogIf(ctx, err)
}
// Wait for one second and no need wait after last attempt.
if i < 2 {
time.Sleep(1 * time.Second)
}
continue
}
break
}
}()
}
// ReloadFormat - calls ReloadFormat REST call on all peers.
func (sys *NotificationSys) ReloadFormat(dryRun bool) []NotificationPeerErr {
ng := WithNPeers(len(sys.peerClients))
for idx, client := range sys.peerClients {
if client == nil {
continue
}
client := client
ng.Go(GlobalContext, func() error {
return client.ReloadFormat(dryRun)
}, idx, *client.host)
}
return ng.Wait()
}
// DeletePolicy - deletes policy across all peers.
func (sys *NotificationSys) DeletePolicy(policyName string) []NotificationPeerErr {
ng := WithNPeers(len(sys.peerClients))
for idx, client := range sys.peerClients {
if client == nil {
continue
}
client := client
ng.Go(GlobalContext, func() error {
return client.DeletePolicy(policyName)
}, idx, *client.host)
}
return ng.Wait()
}
// LoadPolicy - reloads a specific modified policy across all peers
func (sys *NotificationSys) LoadPolicy(policyName string) []NotificationPeerErr {
ng := WithNPeers(len(sys.peerClients))
for idx, client := range sys.peerClients {
if client == nil {
continue
}
client := client
ng.Go(GlobalContext, func() error {
return client.LoadPolicy(policyName)
}, idx, *client.host)
}
return ng.Wait()
}
// LoadPolicyMapping - reloads a policy mapping across all peers
func (sys *NotificationSys) LoadPolicyMapping(userOrGroup string, isGroup bool) []NotificationPeerErr {
ng := WithNPeers(len(sys.peerClients))
for idx, client := range sys.peerClients {
if client == nil {
continue
}
client := client
ng.Go(GlobalContext, func() error {
return client.LoadPolicyMapping(userOrGroup, isGroup)
}, idx, *client.host)
}
return ng.Wait()
}
// DeleteUser - deletes a specific user across all peers
func (sys *NotificationSys) DeleteUser(accessKey string) []NotificationPeerErr {
ng := WithNPeers(len(sys.peerClients))
for idx, client := range sys.peerClients {
if client == nil {
continue
}
client := client
ng.Go(GlobalContext, func() error {
return client.DeleteUser(accessKey)
}, idx, *client.host)
}
return ng.Wait()
}
// LoadUser - reloads a specific user across all peers
func (sys *NotificationSys) LoadUser(accessKey string, temp bool) []NotificationPeerErr {
ng := WithNPeers(len(sys.peerClients))
for idx, client := range sys.peerClients {
if client == nil {
continue
}
client := client
ng.Go(GlobalContext, func() error {
return client.LoadUser(accessKey, temp)
}, idx, *client.host)
}
return ng.Wait()
}
// LoadGroup - loads a specific group on all peers.
func (sys *NotificationSys) LoadGroup(group string) []NotificationPeerErr {
ng := WithNPeers(len(sys.peerClients))
for idx, client := range sys.peerClients {
if client == nil {
continue
}
client := client
ng.Go(GlobalContext, func() error { return client.LoadGroup(group) }, idx, *client.host)
}
return ng.Wait()
}
// DeleteServiceAccount - deletes a specific service account across all peers
func (sys *NotificationSys) DeleteServiceAccount(accessKey string) []NotificationPeerErr {
ng := WithNPeers(len(sys.peerClients))
for idx, client := range sys.peerClients {
if client == nil {
continue
}
client := client
ng.Go(GlobalContext, func() error {
return client.DeleteServiceAccount(accessKey)
}, idx, *client.host)
}
return ng.Wait()
}
// LoadServiceAccount - reloads a specific service account across all peers
func (sys *NotificationSys) LoadServiceAccount(accessKey string) []NotificationPeerErr {
ng := WithNPeers(len(sys.peerClients))
for idx, client := range sys.peerClients {
if client == nil {
continue
}
client := client
ng.Go(GlobalContext, func() error {
return client.LoadServiceAccount(accessKey)
}, idx, *client.host)
}
return ng.Wait()
}
// BackgroundHealStatus - returns background heal status of all peers
func (sys *NotificationSys) BackgroundHealStatus() []madmin.BgHealState {
states := make([]madmin.BgHealState, len(sys.peerClients))
for idx, client := range sys.peerClients {
if client == nil {
continue
}
st, err := client.BackgroundHealStatus()
if err != nil {
logger.LogIf(GlobalContext, err)
} else {
states[idx] = st
}
}
return states
}
// StartProfiling - start profiling on remote peers, by initiating a remote RPC.
func (sys *NotificationSys) StartProfiling(profiler string) []NotificationPeerErr {
ng := WithNPeers(len(sys.peerClients))
for idx, client := range sys.peerClients {
if client == nil {
continue
}
client := client
ng.Go(GlobalContext, func() error {
return client.StartProfiling(profiler)
}, idx, *client.host)
}
return ng.Wait()
}
// DownloadProfilingData - download profiling data from all remote peers.
func (sys *NotificationSys) DownloadProfilingData(ctx context.Context, writer io.Writer) bool {
profilingDataFound := false
// Initialize a zip writer which will provide a zipped content
// of profiling data of all nodes
zipWriter := zip.NewWriter(writer)
defer zipWriter.Close()
for _, client := range sys.peerClients {
if client == nil {
continue
}
data, err := client.DownloadProfileData()
if err != nil {
reqInfo := (&logger.ReqInfo{}).AppendTags("peerAddress", client.host.String())
ctx := logger.SetReqInfo(ctx, reqInfo)
logger.LogIf(ctx, err)
continue
}
profilingDataFound = true
for typ, data := range data {
// Send profiling data to zip as file
header, zerr := zip.FileInfoHeader(dummyFileInfo{
name: fmt.Sprintf("profile-%s-%s", client.host.String(), typ),
size: int64(len(data)),
mode: 0600,
modTime: UTCNow(),
isDir: false,
sys: nil,
})
if zerr != nil {
reqInfo := (&logger.ReqInfo{}).AppendTags("peerAddress", client.host.String())
ctx := logger.SetReqInfo(ctx, reqInfo)
logger.LogIf(ctx, zerr)
continue
}
zwriter, zerr := zipWriter.CreateHeader(header)
if zerr != nil {
reqInfo := (&logger.ReqInfo{}).AppendTags("peerAddress", client.host.String())
ctx := logger.SetReqInfo(ctx, reqInfo)
logger.LogIf(ctx, zerr)
continue
}
if _, err = io.Copy(zwriter, bytes.NewBuffer(data)); err != nil {
reqInfo := (&logger.ReqInfo{}).AppendTags("peerAddress", client.host.String())
ctx := logger.SetReqInfo(ctx, reqInfo)
logger.LogIf(ctx, err)
continue
}
}
}
// Local host
thisAddr, err := xnet.ParseHost(GetLocalPeer(globalEndpoints))
if err != nil {
logger.LogIf(ctx, err)
return profilingDataFound
}
data, err := getProfileData()
if err != nil {
reqInfo := (&logger.ReqInfo{}).AppendTags("peerAddress", thisAddr.String())
ctx := logger.SetReqInfo(ctx, reqInfo)
logger.LogIf(ctx, err)
return profilingDataFound
}
profilingDataFound = true
// Send profiling data to zip as file
for typ, data := range data {
header, zerr := zip.FileInfoHeader(dummyFileInfo{
name: fmt.Sprintf("profile-%s-%s", thisAddr, typ),
size: int64(len(data)),
mode: 0600,
modTime: UTCNow(),
isDir: false,
sys: nil,
})
if zerr != nil {
return profilingDataFound
}
zwriter, zerr := zipWriter.CreateHeader(header)
if zerr != nil {
return profilingDataFound
}
if _, err = io.Copy(zwriter, bytes.NewBuffer(data)); err != nil {
return profilingDataFound
}
}
return profilingDataFound
}
// ServerUpdate - updates remote peers.
func (sys *NotificationSys) ServerUpdate(updateURL, sha256Hex string, latestReleaseTime time.Time) []NotificationPeerErr {
ng := WithNPeers(len(sys.peerClients))
for idx, client := range sys.peerClients {
if client == nil {
continue
}
client := client
ng.Go(GlobalContext, func() error {
return client.ServerUpdate(updateURL, sha256Hex, latestReleaseTime)
}, idx, *client.host)
}
return ng.Wait()
}
// SignalService - calls signal service RPC call on all peers.
func (sys *NotificationSys) SignalService(sig serviceSignal) []NotificationPeerErr {
ng := WithNPeers(len(sys.peerClients))
for idx, client := range sys.peerClients {
if client == nil {
continue
}
client := client
ng.Go(GlobalContext, func() error {
return client.SignalService(sig)
}, idx, *client.host)
}
return ng.Wait()
}
// updateBloomFilter will cycle all servers to the current index and
// return a merged bloom filter if a complete one can be retrieved.
func (sys *NotificationSys) updateBloomFilter(ctx context.Context, current uint64) (*bloomFilter, error) {
var req = bloomFilterRequest{
Current: current,
Oldest: current - dataUsageUpdateDirCycles,
}
if current < dataUsageUpdateDirCycles {
req.Oldest = 0
}
// Load initial state from local...
var bf *bloomFilter
bfr, err := intDataUpdateTracker.cycleFilter(ctx, req.Oldest, req.Current)
logger.LogIf(ctx, err)
if err == nil && bfr.Complete {
nbf := intDataUpdateTracker.newBloomFilter()
bf = &nbf
_, err = bf.ReadFrom(bytes.NewBuffer(bfr.Filter))
logger.LogIf(ctx, err)
}
var mu sync.Mutex
g := errgroup.WithNErrs(len(sys.peerClients))
for idx, client := range sys.peerClients {
if client == nil {
continue
}
client := client
g.Go(func() error {
serverBF, err := client.cycleServerBloomFilter(ctx, req)
if false && intDataUpdateTracker.debug {
b, _ := json.MarshalIndent(serverBF, "", " ")
logger.Info("Disk %v, Bloom filter: %v", client.host.Name, string(b))
}
// Keep lock while checking result.
mu.Lock()
defer mu.Unlock()
if err != nil || !serverBF.Complete || bf == nil {
logger.LogIf(ctx, err)
bf = nil
return nil
}
var tmp bloom.BloomFilter
_, err = tmp.ReadFrom(bytes.NewBuffer(serverBF.Filter))
if err != nil {
logger.LogIf(ctx, err)
bf = nil
return nil
}
if bf.BloomFilter == nil {
bf.BloomFilter = &tmp
} else {
err = bf.Merge(&tmp)
if err != nil {
logger.LogIf(ctx, err)
bf = nil
return nil
}
}
return nil
}, idx)
}
g.Wait()
return bf, nil
}
// GetLocks - makes GetLocks RPC call on all peers.
func (sys *NotificationSys) GetLocks(ctx context.Context) []*PeerLocks {
locksResp := make([]*PeerLocks, len(sys.peerClients))
g := errgroup.WithNErrs(len(sys.peerClients))
for index, client := range sys.peerClients {
if client == nil {
continue
}
index := index
g.Go(func() error {
// Try to fetch serverInfo remotely in three attempts.
for i := 0; i < 3; i++ {
serverLocksResp, err := sys.peerClients[index].GetLocks()
if err == nil {
locksResp[index] = &PeerLocks{
Addr: sys.peerClients[index].host.String(),
Locks: serverLocksResp,
}
return nil
}
// Last iteration log the error.
if i == 2 {
return err
}
// Wait for one second and no need wait after last attempt.
if i < 2 {
time.Sleep(1 * time.Second)
}
}
return nil
}, index)
}
for index, err := range g.Wait() {
reqInfo := (&logger.ReqInfo{}).AppendTags("peerAddress",
sys.peerClients[index].host.String())
ctx := logger.SetReqInfo(ctx, reqInfo)
logger.LogOnceIf(ctx, err, sys.peerClients[index].host.String())
}
return locksResp
}
// SetBucketPolicy - calls SetBucketPolicy RPC call on all peers.
func (sys *NotificationSys) SetBucketPolicy(ctx context.Context, bucketName string, bucketPolicy *policy.Policy) {
go func() {
ng := WithNPeers(len(sys.peerClients))
for idx, client := range sys.peerClients {
if client == nil {
continue
}
client := client
ng.Go(ctx, func() error {
return client.SetBucketPolicy(bucketName, bucketPolicy)
}, idx, *client.host)
}
ng.Wait()
}()
}
// DeleteBucket - calls DeleteBucket RPC call on all peers.
func (sys *NotificationSys) DeleteBucket(ctx context.Context, bucketName string) {
globalNotificationSys.RemoveNotification(bucketName)
globalBucketObjectLockSys.Remove(bucketName)
globalBucketQuotaSys.Remove(bucketName)
globalPolicySys.Remove(bucketName)
globalLifecycleSys.Remove(bucketName)
go func() {
ng := WithNPeers(len(sys.peerClients))
for idx, client := range sys.peerClients {
if client == nil {
continue
}
client := client
ng.Go(ctx, func() error {
return client.DeleteBucket(bucketName)
}, idx, *client.host)
}
ng.Wait()
}()
}
// RemoveBucketPolicy - calls RemoveBucketPolicy RPC call on all peers.
func (sys *NotificationSys) RemoveBucketPolicy(ctx context.Context, bucketName string) {
go func() {
ng := WithNPeers(len(sys.peerClients))
for idx, client := range sys.peerClients {
if client == nil {
continue
}
client := client
ng.Go(ctx, func() error {
return client.RemoveBucketPolicy(bucketName)
}, idx, *client.host)
}
ng.Wait()
}()
}
// RemoveBucketObjectLockConfig - calls RemoveBucketObjectLockConfig RPC call on all peers.
func (sys *NotificationSys) RemoveBucketObjectLockConfig(ctx context.Context, bucketName string) {
go func() {
ng := WithNPeers(len(sys.peerClients))
for idx, client := range sys.peerClients {
if client == nil {
continue
}
client := client
ng.Go(ctx, func() error {
return client.RemoveBucketObjectLockConfig(bucketName)
}, idx, *client.host)
}
ng.Wait()
}()
}
// RemoveBucketQuotaConfig - calls RemoveBucketQuotaConfig RPC call on all peers.
func (sys *NotificationSys) RemoveBucketQuotaConfig(ctx context.Context, bucketName string) {
go func() {
ng := WithNPeers(len(sys.peerClients))
for idx, client := range sys.peerClients {
if client == nil {
continue
}
client := client
ng.Go(ctx, func() error {
return client.RemoveBucketQuotaConfig(bucketName)
}, idx, *client.host)
}
ng.Wait()
}()
}
// SetBucketLifecycle - calls SetBucketLifecycle on all peers.
func (sys *NotificationSys) SetBucketLifecycle(ctx context.Context, bucketName string,
bucketLifecycle *lifecycle.Lifecycle) {
go func() {
ng := WithNPeers(len(sys.peerClients))
for idx, client := range sys.peerClients {
if client == nil {
continue
}
client := client
ng.Go(ctx, func() error {
return client.SetBucketLifecycle(bucketName, bucketLifecycle)
}, idx, *client.host)
}
ng.Wait()
}()
}
// RemoveBucketLifecycle - calls RemoveLifecycle on all peers.
func (sys *NotificationSys) RemoveBucketLifecycle(ctx context.Context, bucketName string) {
go func() {
ng := WithNPeers(len(sys.peerClients))
for idx, client := range sys.peerClients {
if client == nil {
continue
}
client := client
ng.Go(ctx, func() error {
return client.RemoveBucketLifecycle(bucketName)
}, idx, *client.host)
}
ng.Wait()
}()
}
// SetBucketSSEConfig - calls SetBucketSSEConfig on all peers.
func (sys *NotificationSys) SetBucketSSEConfig(ctx context.Context, bucketName string,
encConfig *bucketsse.BucketSSEConfig) {
go func() {
ng := WithNPeers(len(sys.peerClients))
for idx, client := range sys.peerClients {
if client == nil {
continue
}
client := client
ng.Go(ctx, func() error {
return client.SetBucketSSEConfig(bucketName, encConfig)
}, idx, *client.host)
}
ng.Wait()
}()
}
// RemoveBucketSSEConfig - calls RemoveBucketSSEConfig on all peers.
func (sys *NotificationSys) RemoveBucketSSEConfig(ctx context.Context, bucketName string) {
go func() {
ng := WithNPeers(len(sys.peerClients))
for idx, client := range sys.peerClients {
if client == nil {
continue
}
client := client
ng.Go(ctx, func() error {
return client.RemoveBucketSSEConfig(bucketName)
}, idx, *client.host)
}
ng.Wait()
}()
}
// PutBucketNotification - calls PutBucketNotification RPC call on all peers.
func (sys *NotificationSys) PutBucketNotification(ctx context.Context, bucketName string, rulesMap event.RulesMap) {
go func() {
ng := WithNPeers(len(sys.peerClients))
for idx, client := range sys.peerClients {
if client == nil {
continue
}
client := client
ng.Go(ctx, func() error {
return client.PutBucketNotification(bucketName, rulesMap)
}, idx, *client.host)
}
ng.Wait()
}()
}
// AddRemoteTarget - adds event rules map, HTTP/PeerRPC client target to bucket name.
func (sys *NotificationSys) AddRemoteTarget(bucketName string, target event.Target, rulesMap event.RulesMap) error {
if err := sys.targetList.Add(target); err != nil {
return err
}
sys.Lock()
targetMap := sys.bucketRemoteTargetRulesMap[bucketName]
if targetMap == nil {
targetMap = make(map[event.TargetID]event.RulesMap)
}
rulesMap = rulesMap.Clone()
targetMap[target.ID()] = rulesMap
sys.bucketRemoteTargetRulesMap[bucketName] = targetMap
rulesMap = rulesMap.Clone()
rulesMap.Add(sys.bucketRulesMap[bucketName])
sys.bucketRulesMap[bucketName] = rulesMap
sys.Unlock()
return nil
}
// Loads notification policies for all buckets into NotificationSys.
func (sys *NotificationSys) load(buckets []BucketInfo, objAPI ObjectLayer) error {
for _, bucket := range buckets {
ctx := logger.SetReqInfo(GlobalContext, &logger.ReqInfo{BucketName: bucket.Name})
config, err := readNotificationConfig(ctx, objAPI, bucket.Name)
if err != nil && err != errNoSuchNotifications {
if _, ok := err.(*event.ErrARNNotFound); ok {
continue
}
return err
}
if err == errNoSuchNotifications {
continue
}
sys.AddRulesMap(bucket.Name, config.ToRulesMap())
}
return nil
}
// Init - initializes notification system from notification.xml and listener.json of all buckets.
func (sys *NotificationSys) Init(buckets []BucketInfo, objAPI ObjectLayer) error {
if objAPI == nil {
return errServerNotInitialized
}
// In gateway mode, notifications are not supported.
if globalIsGateway && !objAPI.IsNotificationSupported() {
return nil
}
if globalConfigTargetList != nil {
for _, target := range globalConfigTargetList.Targets() {
if err := sys.targetList.Add(target); err != nil {
return err
}
}
}
go func() {
for res := range sys.targetResCh {
if res.Err != nil {
reqInfo := &logger.ReqInfo{}
reqInfo.AppendTags("targetID", res.ID.Name)
ctx := logger.SetReqInfo(GlobalContext, reqInfo)
logger.LogOnceIf(ctx, res.Err, res.ID)
}
}
}()
return sys.load(buckets, objAPI)
}
// AddRulesMap - adds rules map for bucket name.
func (sys *NotificationSys) AddRulesMap(bucketName string, rulesMap event.RulesMap) {
sys.Lock()
defer sys.Unlock()
rulesMap = rulesMap.Clone()
for _, targetRulesMap := range sys.bucketRemoteTargetRulesMap[bucketName] {
rulesMap.Add(targetRulesMap)
}
// Do not add for an empty rulesMap.
if len(rulesMap) == 0 {
delete(sys.bucketRulesMap, bucketName)
} else {
sys.bucketRulesMap[bucketName] = rulesMap
}
}
// RemoveRulesMap - removes rules map for bucket name.
func (sys *NotificationSys) RemoveRulesMap(bucketName string, rulesMap event.RulesMap) {
sys.Lock()
defer sys.Unlock()
sys.bucketRulesMap[bucketName].Remove(rulesMap)
if len(sys.bucketRulesMap[bucketName]) == 0 {
delete(sys.bucketRulesMap, bucketName)
}
}
// ConfiguredTargetIDs - returns list of configured target id's
func (sys *NotificationSys) ConfiguredTargetIDs() []event.TargetID {
if sys == nil {
return nil
}
sys.RLock()
defer sys.RUnlock()
var targetIDs []event.TargetID
for _, rmap := range sys.bucketRulesMap {
for _, rules := range rmap {
for _, targetSet := range rules {
for id := range targetSet {
targetIDs = append(targetIDs, id)
}
}
}
}
// Filter out targets configured via env
var tIDs []event.TargetID
for _, targetID := range targetIDs {
if !globalEnvTargetList.Exists(targetID) {
tIDs = append(tIDs, targetID)
}
}
return tIDs
}
// RemoveNotification - removes all notification configuration for bucket name.
func (sys *NotificationSys) RemoveNotification(bucketName string) {
sys.Lock()
defer sys.Unlock()
delete(sys.bucketRulesMap, bucketName)
targetIDSet := event.NewTargetIDSet()
for targetID := range sys.bucketRemoteTargetRulesMap[bucketName] {
targetIDSet[targetID] = struct{}{}
delete(sys.bucketRemoteTargetRulesMap[bucketName], targetID)
}
sys.targetList.Remove(targetIDSet)
delete(sys.bucketRemoteTargetRulesMap, bucketName)
}
// RemoveAllRemoteTargets - closes and removes all notification targets.
func (sys *NotificationSys) RemoveAllRemoteTargets() {
sys.Lock()
defer sys.Unlock()
for _, targetMap := range sys.bucketRemoteTargetRulesMap {
targetIDSet := event.NewTargetIDSet()
for k := range targetMap {
targetIDSet[k] = struct{}{}
}
sys.targetList.Remove(targetIDSet)
}
}
// Send - sends event data to all matching targets.
func (sys *NotificationSys) Send(args eventArgs) {
sys.RLock()
targetIDSet := sys.bucketRulesMap[args.BucketName].Match(args.EventName, args.Object.Name)
sys.RUnlock()
if len(targetIDSet) == 0 {
return
}
sys.targetList.Send(args.ToEvent(true), targetIDSet, sys.targetResCh)
}
// PutBucketObjectLockConfig - put bucket object lock configuration to all peers.
func (sys *NotificationSys) PutBucketObjectLockConfig(ctx context.Context, bucketName string, retention *objectlock.Retention) {
g := errgroup.WithNErrs(len(sys.peerClients))
for index, client := range sys.peerClients {
if client == nil {
continue
}
index := index
g.Go(func() error {
return sys.peerClients[index].PutBucketObjectLockConfig(bucketName, retention)
}, index)
}
for i, err := range g.Wait() {
if err != nil {
logger.GetReqInfo(ctx).AppendTags("remotePeer", sys.peerClients[i].host.String())
logger.LogIf(ctx, err)
}
}
}
// PutBucketQuotaConfig - put bucket quota configuration to all peers.
func (sys *NotificationSys) PutBucketQuotaConfig(ctx context.Context, bucketName string, q madmin.BucketQuota) {
g := errgroup.WithNErrs(len(sys.peerClients))
for index, client := range sys.peerClients {
if client == nil {
continue
}
index := index
g.Go(func() error {
return sys.peerClients[index].PutBucketQuotaConfig(bucketName, q)
}, index)
}
for i, err := range g.Wait() {
if err != nil {
logger.GetReqInfo(ctx).AppendTags("remotePeer", sys.peerClients[i].host.String())
logger.LogIf(ctx, err)
}
}
}
// NetOBDInfo - Net OBD information
func (sys *NotificationSys) NetOBDInfo(ctx context.Context) madmin.ServerNetOBDInfo {
var sortedGlobalEndpoints []string
/*
Ensure that only untraversed links are visited by this server
i.e. if netOBD tests have been performed between a -> b, then do
not run it between b -> a
The graph of tests looks like this
a b c d
a | o | x | x | x |
b | o | o | x | x |
c | o | o | o | x |
d | o | o | o | o |
'x's should be tested, and 'o's should be skipped
*/
hostSet := set.NewStringSet()
for _, ez := range globalEndpoints {
for _, e := range ez.Endpoints {
if !hostSet.Contains(e.Host) {
sortedGlobalEndpoints = append(sortedGlobalEndpoints, e.Host)
hostSet.Add(e.Host)
}
}
}
sort.Strings(sortedGlobalEndpoints)
var remoteTargets []*peerRESTClient
search := func(host string) *peerRESTClient {
for index, client := range sys.peerClients {
if client == nil {
continue
}
if sys.peerClients[index].host.String() == host {
return client
}
}
return nil
}
for i := 0; i < len(sortedGlobalEndpoints); i++ {
if sortedGlobalEndpoints[i] != GetLocalPeer(globalEndpoints) {
continue
}
for j := 0; j < len(sortedGlobalEndpoints); j++ {
if j > i {
remoteTarget := search(sortedGlobalEndpoints[j])
if remoteTarget != nil {
remoteTargets = append(remoteTargets, remoteTarget)
}
}
}
}
netOBDs := make([]madmin.NetOBDInfo, len(remoteTargets))
for index, client := range remoteTargets {
if client == nil {
continue
}
var err error
netOBDs[index], err = client.NetOBDInfo(ctx)
addr := client.host.String()
reqInfo := (&logger.ReqInfo{}).AppendTags("remotePeer", addr)
ctx := logger.SetReqInfo(GlobalContext, reqInfo)
logger.LogIf(ctx, err)
netOBDs[index].Addr = addr
if err != nil {
netOBDs[index].Error = err.Error()
}
}
return madmin.ServerNetOBDInfo{
Net: netOBDs,
Addr: GetLocalPeer(globalEndpoints),
}
}
// DispatchNetOBDInfo - Net OBD information from other nodes
func (sys *NotificationSys) DispatchNetOBDInfo(ctx context.Context) []madmin.ServerNetOBDInfo {
serverNetOBDs := []madmin.ServerNetOBDInfo{}
for index, client := range sys.peerClients {
if client == nil {
continue
}
serverNetOBD, err := sys.peerClients[index].DispatchNetOBDInfo(ctx)
if err != nil {
serverNetOBD.Addr = client.host.String()
serverNetOBD.Error = err.Error()
}
serverNetOBDs = append(serverNetOBDs, serverNetOBD)
}
return serverNetOBDs
}
// NetOBDParallelInfo - Performs NetOBD tests
func (sys *NotificationSys) NetOBDParallelInfo(ctx context.Context) madmin.ServerNetOBDInfo {
netOBDs := []madmin.NetOBDInfo{}
wg := sync.WaitGroup{}
for index, client := range sys.peerClients {
if client == nil {
continue
}
wg.Add(1)
go func(index int) {
netOBD, err := sys.peerClients[index].NetOBDInfo(ctx)
netOBD.Addr = sys.peerClients[index].host.String()
if err != nil {
netOBD.Error = err.Error()
}
netOBDs = append(netOBDs, netOBD)
wg.Done()
}(index)
}
wg.Wait()
return madmin.ServerNetOBDInfo{
Net: netOBDs,
Addr: GetLocalPeer(globalEndpoints),
}
}
// DriveOBDInfo - Drive OBD information
func (sys *NotificationSys) DriveOBDInfo(ctx context.Context) []madmin.ServerDrivesOBDInfo {
reply := make([]madmin.ServerDrivesOBDInfo, len(sys.peerClients))
g := errgroup.WithNErrs(len(sys.peerClients))
for index, client := range sys.peerClients {
if client == nil {
continue
}
index := index
g.Go(func() error {
var err error
reply[index], err = sys.peerClients[index].DriveOBDInfo(ctx)
return err
}, index)
}
for index, err := range g.Wait() {
if err != nil {
addr := sys.peerClients[index].host.String()
reqInfo := (&logger.ReqInfo{}).AppendTags("remotePeer", addr)
ctx := logger.SetReqInfo(GlobalContext, reqInfo)
logger.LogIf(ctx, err)
reply[index].Addr = addr
reply[index].Error = err.Error()
}
}
return reply
}
// CPUOBDInfo - CPU OBD information
func (sys *NotificationSys) CPUOBDInfo(ctx context.Context) []madmin.ServerCPUOBDInfo {
reply := make([]madmin.ServerCPUOBDInfo, len(sys.peerClients))
g := errgroup.WithNErrs(len(sys.peerClients))
for index, client := range sys.peerClients {
if client == nil {
continue
}
index := index
g.Go(func() error {
var err error
reply[index], err = sys.peerClients[index].CPUOBDInfo(ctx)
return err
}, index)
}
for index, err := range g.Wait() {
if err != nil {
addr := sys.peerClients[index].host.String()
reqInfo := (&logger.ReqInfo{}).AppendTags("remotePeer", addr)
ctx := logger.SetReqInfo(GlobalContext, reqInfo)
logger.LogIf(ctx, err)
reply[index].Addr = addr
reply[index].Error = err.Error()
}
}
return reply
}
// DiskHwOBDInfo - Disk HW OBD information
func (sys *NotificationSys) DiskHwOBDInfo(ctx context.Context) []madmin.ServerDiskHwOBDInfo {
reply := make([]madmin.ServerDiskHwOBDInfo, len(sys.peerClients))
g := errgroup.WithNErrs(len(sys.peerClients))
for index, client := range sys.peerClients {
if client == nil {
continue
}
index := index
g.Go(func() error {
var err error
reply[index], err = sys.peerClients[index].DiskHwOBDInfo(ctx)
return err
}, index)
}
for index, err := range g.Wait() {
if err != nil {
addr := sys.peerClients[index].host.String()
reqInfo := (&logger.ReqInfo{}).AppendTags("remotePeer", addr)
ctx := logger.SetReqInfo(GlobalContext, reqInfo)
logger.LogIf(ctx, err)
reply[index].Addr = addr
reply[index].Error = err.Error()
}
}
return reply
}
// OsOBDInfo - Os OBD information
func (sys *NotificationSys) OsOBDInfo(ctx context.Context) []madmin.ServerOsOBDInfo {
reply := make([]madmin.ServerOsOBDInfo, len(sys.peerClients))
g := errgroup.WithNErrs(len(sys.peerClients))
for index, client := range sys.peerClients {
if client == nil {
continue
}
index := index
g.Go(func() error {
var err error
reply[index], err = sys.peerClients[index].OsOBDInfo(ctx)
return err
}, index)
}
for index, err := range g.Wait() {
if err != nil {
addr := sys.peerClients[index].host.String()
reqInfo := (&logger.ReqInfo{}).AppendTags("remotePeer", addr)
ctx := logger.SetReqInfo(GlobalContext, reqInfo)
logger.LogIf(ctx, err)
reply[index].Addr = addr
reply[index].Error = err.Error()
}
}
return reply
}
// MemOBDInfo - Mem OBD information
func (sys *NotificationSys) MemOBDInfo(ctx context.Context) []madmin.ServerMemOBDInfo {
reply := make([]madmin.ServerMemOBDInfo, len(sys.peerClients))
g := errgroup.WithNErrs(len(sys.peerClients))
for index, client := range sys.peerClients {
if client == nil {
continue
}
index := index
g.Go(func() error {
var err error
reply[index], err = sys.peerClients[index].MemOBDInfo(ctx)
return err
}, index)
}
for index, err := range g.Wait() {
if err != nil {
addr := sys.peerClients[index].host.String()
reqInfo := (&logger.ReqInfo{}).AppendTags("remotePeer", addr)
ctx := logger.SetReqInfo(GlobalContext, reqInfo)
logger.LogIf(ctx, err)
reply[index].Addr = addr
reply[index].Error = err.Error()
}
}
return reply
}
// ProcOBDInfo - Process OBD information
func (sys *NotificationSys) ProcOBDInfo(ctx context.Context) []madmin.ServerProcOBDInfo {
reply := make([]madmin.ServerProcOBDInfo, len(sys.peerClients))
g := errgroup.WithNErrs(len(sys.peerClients))
for index, client := range sys.peerClients {
if client == nil {
continue
}
index := index
g.Go(func() error {
var err error
reply[index], err = sys.peerClients[index].ProcOBDInfo(ctx)
return err
}, index)
}
for index, err := range g.Wait() {
if err != nil {
addr := sys.peerClients[index].host.String()
reqInfo := (&logger.ReqInfo{}).AppendTags("remotePeer", addr)
ctx := logger.SetReqInfo(GlobalContext, reqInfo)
logger.LogIf(ctx, err)
reply[index].Addr = addr
reply[index].Error = err.Error()
}
}
return reply
}
// ServerInfo - calls ServerInfo RPC call on all peers.
func (sys *NotificationSys) ServerInfo() []madmin.ServerProperties {
reply := make([]madmin.ServerProperties, len(sys.peerClients))
var wg sync.WaitGroup
for i, client := range sys.peerClients {
if client == nil {
continue
}
wg.Add(1)
go func(client *peerRESTClient, idx int) {
defer wg.Done()
info, err := client.ServerInfo()
if err != nil {
info.Endpoint = client.host.String()
info.State = "offline"
} else {
info.State = "ok"
}
reply[idx] = info
}(client, i)
}
wg.Wait()
return reply
}
// NewNotificationSys - creates new notification system object.
func NewNotificationSys(endpoints EndpointZones) *NotificationSys {
// bucketRulesMap/bucketRemoteTargetRulesMap are initialized by NotificationSys.Init()
return &NotificationSys{
targetList: event.NewTargetList(),
targetResCh: make(chan event.TargetIDResult),
bucketRulesMap: make(map[string]event.RulesMap),
bucketRemoteTargetRulesMap: make(map[string]map[event.TargetID]event.RulesMap),
peerClients: newPeerRestClients(endpoints),
}
}
type eventArgs struct {
EventName event.Name
BucketName string
Object ObjectInfo
ReqParams map[string]string
RespElements map[string]string
Host string
UserAgent string
}
// ToEvent - converts to notification event.
func (args eventArgs) ToEvent(escape bool) event.Event {
eventTime := UTCNow()
uniqueID := fmt.Sprintf("%X", eventTime.UnixNano())
respElements := map[string]string{
"x-amz-request-id": args.RespElements["requestId"],
"x-minio-origin-endpoint": globalMinioEndpoint, // MinIO specific custom elements.
}
// Add deployment as part of
if globalDeploymentID != "" {
respElements["x-minio-deployment-id"] = globalDeploymentID
}
if args.RespElements["content-length"] != "" {
respElements["content-length"] = args.RespElements["content-length"]
}
keyName := args.Object.Name
if escape {
keyName = url.QueryEscape(args.Object.Name)
}
newEvent := event.Event{
EventVersion: "2.0",
EventSource: "minio:s3",
AwsRegion: args.ReqParams["region"],
EventTime: eventTime.Format(event.AMZTimeFormat),
EventName: args.EventName,
UserIdentity: event.Identity{PrincipalID: args.ReqParams["accessKey"]},
RequestParameters: args.ReqParams,
ResponseElements: respElements,
S3: event.Metadata{
SchemaVersion: "1.0",
ConfigurationID: "Config",
Bucket: event.Bucket{
Name: args.BucketName,
OwnerIdentity: event.Identity{PrincipalID: args.ReqParams["accessKey"]},
ARN: policy.ResourceARNPrefix + args.BucketName,
},
Object: event.Object{
Key: keyName,
VersionID: "1",
Sequencer: uniqueID,
},
},
Source: event.Source{
Host: args.Host,
UserAgent: args.UserAgent,
},
}
if args.EventName != event.ObjectRemovedDelete {
newEvent.S3.Object.ETag = args.Object.ETag
newEvent.S3.Object.Size = args.Object.Size
if args.Object.IsCompressed() {
newEvent.S3.Object.Size = args.Object.GetActualSize()
}
newEvent.S3.Object.ContentType = args.Object.ContentType
newEvent.S3.Object.UserMetadata = args.Object.UserDefined
}
return newEvent
}
func sendEvent(args eventArgs) {
// remove sensitive encryption entries in metadata.
switch {
case crypto.IsEncrypted(args.Object.UserDefined):
if totalObjectSize, err := args.Object.DecryptedSize(); err == nil {
args.Object.Size = totalObjectSize
}
case args.Object.IsCompressed():
args.Object.Size = args.Object.GetActualSize()
}
crypto.RemoveSensitiveEntries(args.Object.UserDefined)
crypto.RemoveInternalEntries(args.Object.UserDefined)
// globalNotificationSys is not initialized in gateway mode.
if globalNotificationSys == nil {
return
}
if globalHTTPListen.HasSubscribers() {
globalHTTPListen.Publish(args.ToEvent(false))
}
globalNotificationSys.Send(args)
}
func readNotificationConfig(ctx context.Context, objAPI ObjectLayer, bucketName string) (*event.Config, error) {
// Construct path to notification.xml for the given bucket.
configFile := path.Join(bucketConfigPrefix, bucketName, bucketNotificationConfig)
configData, err := readConfig(ctx, objAPI, configFile)
if err != nil {
if err == errConfigNotFound {
err = errNoSuchNotifications
}
return nil, err
}
config, err := event.ParseConfig(bytes.NewReader(configData), globalServerRegion, globalNotificationSys.targetList)
logger.LogIf(ctx, err)
return config, err
}
func saveNotificationConfig(ctx context.Context, objAPI ObjectLayer, bucketName string, config *event.Config) error {
data, err := xml.Marshal(config)
if err != nil {
return err
}
configFile := path.Join(bucketConfigPrefix, bucketName, bucketNotificationConfig)
return saveConfig(ctx, objAPI, configFile, data)
}