/* * MinIO Cloud Storage, (C) 2016-2019 MinIO, Inc. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package cmd import ( "context" "crypto/subtle" "encoding/json" "fmt" "io" "net/http" "net/url" "os" "path" "runtime" "sort" "strconv" "strings" "time" humanize "github.com/dustin/go-humanize" "github.com/gorilla/mux" "github.com/minio/minio/cmd/config" "github.com/minio/minio/cmd/crypto" xhttp "github.com/minio/minio/cmd/http" "github.com/minio/minio/cmd/logger" "github.com/minio/minio/pkg/auth" "github.com/minio/minio/pkg/cpu" "github.com/minio/minio/pkg/handlers" iampolicy "github.com/minio/minio/pkg/iam/policy" "github.com/minio/minio/pkg/madmin" "github.com/minio/minio/pkg/mem" xnet "github.com/minio/minio/pkg/net" trace "github.com/minio/minio/pkg/trace" ) const ( maxEConfigJSONSize = 262272 defaultNetPerfSize = 100 * humanize.MiByte ) // Type-safe query params. type mgmtQueryKey string // Only valid query params for mgmt admin APIs. const ( mgmtBucket mgmtQueryKey = "bucket" mgmtPrefix = "prefix" mgmtClientToken = "clientToken" mgmtForceStart = "forceStart" mgmtForceStop = "forceStop" ) func updateServer(updateURL, sha256Hex string, latestReleaseTime time.Time) (us madmin.ServerUpdateStatus, err error) { minioMode := getMinioMode() // No inputs provided we should try to update using the default URL. if updateURL == "" && sha256Hex == "" && latestReleaseTime.IsZero() { var updateMsg string updateMsg, sha256Hex, _, latestReleaseTime, err = getUpdateInfo(updateTimeout, minioMode) if err != nil { return us, err } if updateMsg == "" { us.CurrentVersion = Version us.UpdatedVersion = Version return us, nil } if runtime.GOOS == "windows" { updateURL = minioReleaseURL + "minio.exe" } else { updateURL = minioReleaseURL + "minio" } } if err = doUpdate(updateURL, sha256Hex, minioMode); err != nil { return us, err } us.CurrentVersion = Version us.UpdatedVersion = latestReleaseTime.Format(minioReleaseTagTimeLayout) return us, nil } // ServerUpdateHandler - POST /minio/admin/v2/update?updateURL={updateURL} // ---------- // updates all minio servers and restarts them gracefully. func (a adminAPIHandlers) ServerUpdateHandler(w http.ResponseWriter, r *http.Request) { ctx := newContext(r, w, "ServerUpdate") objectAPI, _ := validateAdminReq(ctx, w, r, iampolicy.ServerUpdateAdminAction) if objectAPI == nil { return } if globalInplaceUpdateDisabled { // if MINIO_UPDATE=off - inplace update is disabled, mostly // in containers. writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrMethodNotAllowed), r.URL) return } vars := mux.Vars(r) updateURL := vars[peerRESTUpdateURL] mode := getMinioMode() var sha256Hex string var latestReleaseTime time.Time if updateURL != "" { u, err := url.Parse(updateURL) if err != nil { writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL) return } content, err := downloadReleaseURL(updateURL, updateTimeout, mode) if err != nil { writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL) return } sha256Hex, latestReleaseTime, err = parseReleaseData(content) if err != nil { writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL) return } if runtime.GOOS == "windows" { u.Path = path.Dir(u.Path) + "minio.exe" } else { u.Path = path.Dir(u.Path) + "minio" } updateURL = u.String() } for _, nerr := range globalNotificationSys.ServerUpdate(updateURL, sha256Hex, latestReleaseTime) { if nerr.Err != nil { logger.GetReqInfo(ctx).SetTags("peerAddress", nerr.Host.String()) logger.LogIf(ctx, nerr.Err) } } updateStatus, err := updateServer(updateURL, sha256Hex, latestReleaseTime) if err != nil { writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL) return } // Marshal API response jsonBytes, err := json.Marshal(updateStatus) if err != nil { writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL) return } writeSuccessResponseJSON(w, jsonBytes) if updateStatus.CurrentVersion != updateStatus.UpdatedVersion { // We did upgrade - restart all services. globalServiceSignalCh <- serviceRestart } } // ServiceActionHandler - POST /minio/admin/v2/service?action={action} // ---------- // restarts/stops minio server gracefully. In a distributed setup, func (a adminAPIHandlers) ServiceActionHandler(w http.ResponseWriter, r *http.Request) { ctx := newContext(r, w, "ServiceAction") vars := mux.Vars(r) action := vars["action"] objectAPI, _ := validateAdminReq(ctx, w, r, "") if objectAPI == nil { return } var serviceSig serviceSignal switch madmin.ServiceAction(action) { case madmin.ServiceActionRestart: serviceSig = serviceRestart case madmin.ServiceActionStop: serviceSig = serviceStop default: logger.LogIf(ctx, fmt.Errorf("Unrecognized service action %s requested", action), logger.Application) writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrMalformedPOSTRequest), r.URL) return } // Notify all other MinIO peers signal service. for _, nerr := range globalNotificationSys.SignalService(serviceSig) { if nerr.Err != nil { logger.GetReqInfo(ctx).SetTags("peerAddress", nerr.Host.String()) logger.LogIf(ctx, nerr.Err) } } // Reply to the client before restarting, stopping MinIO server. writeSuccessResponseHeadersOnly(w) globalServiceSignalCh <- serviceSig } // ServerProperties holds some server information such as, version, region // uptime, etc.. type ServerProperties struct { Uptime time.Duration `json:"uptime"` Version string `json:"version"` CommitID string `json:"commitID"` DeploymentID string `json:"deploymentID"` Region string `json:"region"` SQSARN []string `json:"sqsARN"` } // ServerConnStats holds transferred bytes from/to the server type ServerConnStats struct { TotalInputBytes uint64 `json:"transferred"` TotalOutputBytes uint64 `json:"received"` Throughput uint64 `json:"throughput,omitempty"` S3InputBytes uint64 `json:"transferredS3"` S3OutputBytes uint64 `json:"receivedS3"` } // ServerHTTPAPIStats holds total number of HTTP operations from/to the server, // including the average duration the call was spent. type ServerHTTPAPIStats struct { APIStats map[string]int `json:"apiStats"` } // ServerHTTPStats holds all type of http operations performed to/from the server // including their average execution time. type ServerHTTPStats struct { CurrentS3Requests ServerHTTPAPIStats `json:"currentS3Requests"` TotalS3Requests ServerHTTPAPIStats `json:"totalS3Requests"` TotalS3Errors ServerHTTPAPIStats `json:"totalS3Errors"` } // ServerInfoData holds storage, connections and other // information of a given server. type ServerInfoData struct { ConnStats ServerConnStats `json:"network"` HTTPStats ServerHTTPStats `json:"http"` Properties ServerProperties `json:"server"` } // ServerInfo holds server information result of one node type ServerInfo struct { Error string `json:"error"` Addr string `json:"addr"` Data *ServerInfoData `json:"data"` } // ServerInfoHandler - GET /minio/admin/v2/info // ---------- // Get server information func (a adminAPIHandlers) ServerInfoHandler(w http.ResponseWriter, r *http.Request) { ctx := newContext(r, w, "ServerInfo") objectAPI, _ := validateAdminReq(ctx, w, r, iampolicy.ListServerInfoAdminAction) if objectAPI == nil { return } serverInfo := globalNotificationSys.ServerInfo(ctx) // Once we have received all the ServerInfo from peers // add the local peer server info as well. serverInfo = append(serverInfo, ServerInfo{ Addr: getHostName(r), Data: &ServerInfoData{ ConnStats: globalConnStats.toServerConnStats(), HTTPStats: globalHTTPStats.toServerHTTPStats(), Properties: ServerProperties{ Uptime: UTCNow().Sub(globalBootTime), Version: Version, CommitID: CommitID, DeploymentID: globalDeploymentID, SQSARN: globalNotificationSys.GetARNList(), Region: globalServerRegion, }, }, }) // Marshal API response jsonBytes, err := json.Marshal(serverInfo) if err != nil { writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL) return } // Reply with storage information (across nodes in a // distributed setup) as json. writeSuccessResponseJSON(w, jsonBytes) } // ServerInfoHandler - GET /minio/admin/v2/storageinfo // ---------- // Get server information func (a adminAPIHandlers) StorageInfoHandler(w http.ResponseWriter, r *http.Request) { ctx := newContext(r, w, "StorageInfo") objectAPI, _ := validateAdminReq(ctx, w, r, iampolicy.ListServerInfoAdminAction) if objectAPI == nil { return } storageInfo := objectAPI.StorageInfo(ctx) // Marshal API response jsonBytes, err := json.Marshal(storageInfo) if err != nil { writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL) return } // Reply with storage information (across nodes in a // distributed setup) as json. writeSuccessResponseJSON(w, jsonBytes) } // ServerCPULoadInfo holds informantion about cpu utilization // of one minio node. It also reports any errors if encountered // while trying to reach this server. type ServerCPULoadInfo struct { Addr string `json:"addr"` Error string `json:"error,omitempty"` Load []cpu.Load `json:"load"` HistoricLoad []cpu.Load `json:"historicLoad"` } // ServerMemUsageInfo holds informantion about memory utilization // of one minio node. It also reports any errors if encountered // while trying to reach this server. type ServerMemUsageInfo struct { Addr string `json:"addr"` Error string `json:"error,omitempty"` Usage []mem.Usage `json:"usage"` HistoricUsage []mem.Usage `json:"historicUsage"` } // ServerNetReadPerfInfo network read performance information. type ServerNetReadPerfInfo struct { Addr string `json:"addr"` ReadThroughput uint64 `json:"readThroughput"` Error string `json:"error,omitempty"` } // PerfInfoHandler - GET /minio/admin/v2/performance?perfType={perfType} // ---------- // Get all performance information based on input type // Supported types = drive func (a adminAPIHandlers) PerfInfoHandler(w http.ResponseWriter, r *http.Request) { ctx := newContext(r, w, "PerfInfo") objectAPI, _ := validateAdminReq(ctx, w, r, iampolicy.ListServerInfoAdminAction) if objectAPI == nil { return } vars := mux.Vars(r) switch perfType := vars["perfType"]; perfType { case "net": var size int64 = defaultNetPerfSize if sizeStr, found := vars["size"]; found { var err error if size, err = strconv.ParseInt(sizeStr, 10, 64); err != nil || size < 0 { writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrBadRequest), r.URL) return } } if !globalIsDistXL { writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrMethodNotAllowed), r.URL) return } addr := r.Host if globalIsDistXL { addr = GetLocalPeer(globalEndpoints) } infos := map[string][]ServerNetReadPerfInfo{} infos[addr] = globalNotificationSys.NetReadPerfInfo(size) for peer, info := range globalNotificationSys.CollectNetPerfInfo(size) { infos[peer] = info } // Marshal API response jsonBytes, err := json.Marshal(infos) if err != nil { writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL) return } // Reply with performance information (across nodes in a // distributed setup) as json. writeSuccessResponseJSON(w, jsonBytes) case "drive": // Drive Perf is only implemented for Erasure coded backends if !globalIsXL { writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrMethodNotAllowed), r.URL) return } var size int64 = madmin.DefaultDrivePerfSize if sizeStr, found := vars["size"]; found { var err error if size, err = strconv.ParseInt(sizeStr, 10, 64); err != nil || size <= 0 { writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrBadRequest), r.URL) return } } // Get drive performance details from local server's drive(s) dp := getLocalDrivesPerf(globalEndpoints, size, r) // Notify all other MinIO peers to report drive performance numbers dps := globalNotificationSys.DrivePerfInfo(size) dps = append(dps, dp) // Marshal API response jsonBytes, err := json.Marshal(dps) if err != nil { writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL) return } // Reply with performance information (across nodes in a // distributed setup) as json. writeSuccessResponseJSON(w, jsonBytes) case "cpu": // Get CPU load details from local server's cpu(s) cpu := getLocalCPULoad(globalEndpoints, r) // Notify all other MinIO peers to report cpu load numbers cpus := globalNotificationSys.CPULoadInfo() cpus = append(cpus, cpu) // Marshal API response jsonBytes, err := json.Marshal(cpus) if err != nil { writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL) return } // Reply with cpu load information (across nodes in a // distributed setup) as json. writeSuccessResponseJSON(w, jsonBytes) case "mem": // Get mem usage details from local server(s) m := getLocalMemUsage(globalEndpoints, r) // Notify all other MinIO peers to report mem usage numbers mems := globalNotificationSys.MemUsageInfo() mems = append(mems, m) // Marshal API response jsonBytes, err := json.Marshal(mems) if err != nil { writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL) return } // Reply with mem usage information (across nodes in a // distributed setup) as json. writeSuccessResponseJSON(w, jsonBytes) default: writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrMethodNotAllowed), r.URL) } } func newLockEntry(l lockRequesterInfo, resource, server string) *madmin.LockEntry { entry := &madmin.LockEntry{ Timestamp: l.Timestamp, Resource: resource, ServerList: []string{server}, Source: l.Source, ID: l.UID, } if l.Writer { entry.Type = "Write" } else { entry.Type = "Read" } return entry } func topLockEntries(peerLocks []*PeerLocks) madmin.LockEntries { entryMap := make(map[string]*madmin.LockEntry) for _, peerLock := range peerLocks { if peerLock == nil { continue } for _, locks := range peerLock.Locks { for k, v := range locks { for _, lockReqInfo := range v { if val, ok := entryMap[lockReqInfo.UID]; ok { val.ServerList = append(val.ServerList, peerLock.Addr) } else { entryMap[lockReqInfo.UID] = newLockEntry(lockReqInfo, k, peerLock.Addr) } } } } } var lockEntries = make(madmin.LockEntries, 0) for _, v := range entryMap { lockEntries = append(lockEntries, *v) } sort.Sort(lockEntries) const listCount int = 10 if len(lockEntries) > listCount { lockEntries = lockEntries[:listCount] } return lockEntries } // PeerLocks holds server information result of one node type PeerLocks struct { Addr string Locks GetLocksResp } // TopLocksHandler Get list of locks in use func (a adminAPIHandlers) TopLocksHandler(w http.ResponseWriter, r *http.Request) { ctx := newContext(r, w, "TopLocks") objectAPI, _ := validateAdminReq(ctx, w, r, iampolicy.ListServerInfoAdminAction) if objectAPI == nil { return } peerLocks := globalNotificationSys.GetLocks(ctx) // Once we have received all the locks currently used from peers // add the local peer locks list as well. var getRespLocks GetLocksResp for _, llocker := range globalLockServers { getRespLocks = append(getRespLocks, llocker.DupLockMap()) } peerLocks = append(peerLocks, &PeerLocks{ Addr: getHostName(r), Locks: getRespLocks, }) topLocks := topLockEntries(peerLocks) // Marshal API response jsonBytes, err := json.Marshal(topLocks) if err != nil { writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL) return } // Reply with storage information (across nodes in a // distributed setup) as json. writeSuccessResponseJSON(w, jsonBytes) } // StartProfilingResult contains the status of the starting // profiling action in a given server type StartProfilingResult struct { NodeName string `json:"nodeName"` Success bool `json:"success"` Error string `json:"error"` } // StartProfilingHandler - POST /minio/admin/v2/profiling/start?profilerType={profilerType} // ---------- // Enable server profiling func (a adminAPIHandlers) StartProfilingHandler(w http.ResponseWriter, r *http.Request) { ctx := newContext(r, w, "StartProfiling") objectAPI, _ := validateAdminReq(ctx, w, r, iampolicy.ListServerInfoAdminAction) if objectAPI == nil { return } vars := mux.Vars(r) profiler := vars["profilerType"] thisAddr, err := xnet.ParseHost(GetLocalPeer(globalEndpoints)) if err != nil { writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL) return } // Start profiling on remote servers. hostErrs := globalNotificationSys.StartProfiling(profiler) // Start profiling locally as well. { if globalProfiler != nil { globalProfiler.Stop() } prof, err := startProfiler(profiler, "") if err != nil { hostErrs = append(hostErrs, NotificationPeerErr{ Host: *thisAddr, Err: err, }) } else { globalProfiler = prof hostErrs = append(hostErrs, NotificationPeerErr{ Host: *thisAddr, }) } } var startProfilingResult []StartProfilingResult for _, nerr := range hostErrs { result := StartProfilingResult{NodeName: nerr.Host.String()} if nerr.Err != nil { result.Error = nerr.Err.Error() } else { result.Success = true } startProfilingResult = append(startProfilingResult, result) } // Create JSON result and send it to the client startProfilingResultInBytes, err := json.Marshal(startProfilingResult) if err != nil { writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL) return } writeSuccessResponseJSON(w, []byte(startProfilingResultInBytes)) } // dummyFileInfo represents a dummy representation of a profile data file // present only in memory, it helps to generate the zip stream. type dummyFileInfo struct { name string size int64 mode os.FileMode modTime time.Time isDir bool sys interface{} } func (f dummyFileInfo) Name() string { return f.name } func (f dummyFileInfo) Size() int64 { return f.size } func (f dummyFileInfo) Mode() os.FileMode { return f.mode } func (f dummyFileInfo) ModTime() time.Time { return f.modTime } func (f dummyFileInfo) IsDir() bool { return f.isDir } func (f dummyFileInfo) Sys() interface{} { return f.sys } // DownloadProfilingHandler - POST /minio/admin/v2/profiling/download // ---------- // Download profiling information of all nodes in a zip format func (a adminAPIHandlers) DownloadProfilingHandler(w http.ResponseWriter, r *http.Request) { ctx := newContext(r, w, "DownloadProfiling") objectAPI, _ := validateAdminReq(ctx, w, r, iampolicy.ListServerInfoAdminAction) if objectAPI == nil { return } if !globalNotificationSys.DownloadProfilingData(ctx, w) { writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrAdminProfilerNotEnabled), r.URL) return } } type healInitParams struct { bucket, objPrefix string hs madmin.HealOpts clientToken string forceStart, forceStop bool } // extractHealInitParams - Validates params for heal init API. func extractHealInitParams(vars map[string]string, qParms url.Values, r io.Reader) (hip healInitParams, err APIErrorCode) { hip.bucket = vars[string(mgmtBucket)] hip.objPrefix = vars[string(mgmtPrefix)] if hip.bucket == "" { if hip.objPrefix != "" { // Bucket is required if object-prefix is given err = ErrHealMissingBucket return } } else if isReservedOrInvalidBucket(hip.bucket, false) { err = ErrInvalidBucketName return } // empty prefix is valid. if !IsValidObjectPrefix(hip.objPrefix) { err = ErrInvalidObjectName return } if len(qParms[string(mgmtClientToken)]) > 0 { hip.clientToken = qParms[string(mgmtClientToken)][0] } if _, ok := qParms[string(mgmtForceStart)]; ok { hip.forceStart = true } if _, ok := qParms[string(mgmtForceStop)]; ok { hip.forceStop = true } // Invalid request conditions: // // Cannot have both forceStart and forceStop in the same // request; If clientToken is provided, request can only be // to continue receiving logs, so it cannot be start or // stop; if (hip.forceStart && hip.forceStop) || (hip.clientToken != "" && (hip.forceStart || hip.forceStop)) { err = ErrInvalidRequest return } // ignore body if clientToken is provided if hip.clientToken == "" { jerr := json.NewDecoder(r).Decode(&hip.hs) if jerr != nil { logger.LogIf(context.Background(), jerr, logger.Application) err = ErrRequestBodyParse return } } err = ErrNone return } // HealHandler - POST /minio/admin/v2/heal/ // ----------- // Start heal processing and return heal status items. // // On a successful heal sequence start, a unique client token is // returned. Subsequent requests to this endpoint providing the client // token will receive heal status records from the running heal // sequence. // // If no client token is provided, and a heal sequence is in progress // an error is returned with information about the running heal // sequence. However, if the force-start flag is provided, the server // aborts the running heal sequence and starts a new one. func (a adminAPIHandlers) HealHandler(w http.ResponseWriter, r *http.Request) { ctx := newContext(r, w, "Heal") objectAPI, _ := validateAdminReq(ctx, w, r, iampolicy.HealAdminAction) if objectAPI == nil { return } // Check if this setup has an erasure coded backend. if !globalIsXL { writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrHealNotImplemented), r.URL) return } hip, errCode := extractHealInitParams(mux.Vars(r), r.URL.Query(), r.Body) if errCode != ErrNone { writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(errCode), r.URL) return } type healResp struct { respBytes []byte apiErr APIError errBody string } // Define a closure to start sending whitespace to client // after 10s unless a response item comes in keepConnLive := func(w http.ResponseWriter, respCh chan healResp) { ticker := time.NewTicker(time.Second * 10) defer ticker.Stop() started := false forLoop: for { select { case <-ticker.C: if !started { // Start writing response to client started = true setCommonHeaders(w) w.Header().Set(xhttp.ContentType, "text/event-stream") // Set 200 OK status w.WriteHeader(200) } // Send whitespace and keep connection open w.Write([]byte(" ")) w.(http.Flusher).Flush() case hr := <-respCh: switch hr.apiErr { case noError: if started { w.Write(hr.respBytes) w.(http.Flusher).Flush() } else { writeSuccessResponseJSON(w, hr.respBytes) } default: var errorRespJSON []byte if hr.errBody == "" { errorRespJSON = encodeResponseJSON(getAPIErrorResponse(ctx, hr.apiErr, r.URL.Path, w.Header().Get(xhttp.AmzRequestID), globalDeploymentID)) } else { errorRespJSON = encodeResponseJSON(APIErrorResponse{ Code: hr.apiErr.Code, Message: hr.errBody, Resource: r.URL.Path, RequestID: w.Header().Get(xhttp.AmzRequestID), HostID: globalDeploymentID, }) } if !started { setCommonHeaders(w) w.Header().Set(xhttp.ContentType, string(mimeJSON)) w.WriteHeader(hr.apiErr.HTTPStatusCode) } w.Write(errorRespJSON) w.(http.Flusher).Flush() } break forLoop } } } // find number of disks in the setup info := objectAPI.StorageInfo(ctx) numDisks := info.Backend.OfflineDisks.Sum() + info.Backend.OnlineDisks.Sum() healPath := pathJoin(hip.bucket, hip.objPrefix) if hip.clientToken == "" && !hip.forceStart && !hip.forceStop { nh, exists := globalAllHealState.getHealSequence(healPath) if exists && !nh.hasEnded() && len(nh.currentStatus.Items) > 0 { b, err := json.Marshal(madmin.HealStartSuccess{ ClientToken: nh.clientToken, ClientAddress: nh.clientAddress, StartTime: nh.startTime, }) if err != nil { writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL) return } // Client token not specified but a heal sequence exists on a path, // Send the token back to client. writeSuccessResponseJSON(w, b) return } } if hip.clientToken != "" && !hip.forceStart && !hip.forceStop { // Since clientToken is given, fetch heal status from running // heal sequence. respBytes, errCode := globalAllHealState.PopHealStatusJSON( healPath, hip.clientToken) if errCode != ErrNone { writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(errCode), r.URL) } else { writeSuccessResponseJSON(w, respBytes) } return } respCh := make(chan healResp) switch { case hip.forceStop: go func() { respBytes, apiErr := globalAllHealState.stopHealSequence(healPath) hr := healResp{respBytes: respBytes, apiErr: apiErr} respCh <- hr }() case hip.clientToken == "": nh := newHealSequence(hip.bucket, hip.objPrefix, handlers.GetSourceIP(r), numDisks, hip.hs, hip.forceStart) go func() { respBytes, apiErr, errMsg := globalAllHealState.LaunchNewHealSequence(nh) hr := healResp{respBytes, apiErr, errMsg} respCh <- hr }() } // Due to the force-starting functionality, the Launch // call above can take a long time - to keep the // connection alive, we start sending whitespace keepConnLive(w, respCh) } func (a adminAPIHandlers) BackgroundHealStatusHandler(w http.ResponseWriter, r *http.Request) { ctx := newContext(r, w, "HealBackgroundStatus") objectAPI, _ := validateAdminReq(ctx, w, r, iampolicy.HealAdminAction) if objectAPI == nil { return } // Check if this setup has an erasure coded backend. if !globalIsXL { writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrHealNotImplemented), r.URL) return } var bgHealStates []madmin.BgHealState // Get local heal status first bgHealStates = append(bgHealStates, getLocalBackgroundHealStatus()) if globalIsDistXL { // Get heal status from other peers peersHealStates := globalNotificationSys.BackgroundHealStatus() bgHealStates = append(bgHealStates, peersHealStates...) } // Aggregate healing result var aggregatedHealStateResult = madmin.BgHealState{} for _, state := range bgHealStates { aggregatedHealStateResult.ScannedItemsCount += state.ScannedItemsCount if aggregatedHealStateResult.LastHealActivity.Before(state.LastHealActivity) { aggregatedHealStateResult.LastHealActivity = state.LastHealActivity } } if err := json.NewEncoder(w).Encode(aggregatedHealStateResult); err != nil { writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL) return } w.(http.Flusher).Flush() } func validateAdminReq(ctx context.Context, w http.ResponseWriter, r *http.Request, action iampolicy.AdminAction) (ObjectLayer, auth.Credentials) { var cred auth.Credentials var adminAPIErr APIErrorCode // Get current object layer instance. objectAPI := newObjectLayerWithoutSafeModeFn() if objectAPI == nil || globalNotificationSys == nil { writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrServerNotInitialized), r.URL) return nil, cred } // Validate request signature. cred, adminAPIErr = checkAdminRequestAuthType(ctx, r, action, "") if adminAPIErr != ErrNone { writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(adminAPIErr), r.URL) return nil, cred } return objectAPI, cred } // AdminError - is a generic error for all admin APIs. type AdminError struct { Code string Message string StatusCode int } func (ae AdminError) Error() string { return ae.Message } // Admin API errors const ( AdminUpdateUnexpectedFailure = "XMinioAdminUpdateUnexpectedFailure" AdminUpdateURLNotReachable = "XMinioAdminUpdateURLNotReachable" AdminUpdateApplyFailure = "XMinioAdminUpdateApplyFailure" ) // toAdminAPIErrCode - converts errXLWriteQuorum error to admin API // specific error. func toAdminAPIErrCode(ctx context.Context, err error) APIErrorCode { switch err { case errXLWriteQuorum: return ErrAdminConfigNoQuorum default: return toAPIErrorCode(ctx, err) } } func toAdminAPIErr(ctx context.Context, err error) APIError { if err == nil { return noError } var apiErr APIError switch e := err.(type) { case config.Error: apiErr = APIError{ Code: "XMinioConfigError", Description: e.Error(), HTTPStatusCode: http.StatusBadRequest, } case AdminError: apiErr = APIError{ Code: e.Code, Description: e.Message, HTTPStatusCode: e.StatusCode, } default: if err == errConfigNotFound { apiErr = APIError{ Code: "XMinioConfigError", Description: err.Error(), HTTPStatusCode: http.StatusNotFound, } } else { apiErr = errorCodes.ToAPIErr(toAdminAPIErrCode(ctx, err)) } } return apiErr } // Returns true if the trace.Info should be traced, // false if certain conditions are not met. // - input entry is not of the type *trace.Info* // - errOnly entries are to be traced, not status code 2xx, 3xx. // - all entries to be traced, if not trace only S3 API requests. func mustTrace(entry interface{}, trcAll, errOnly bool) bool { trcInfo, ok := entry.(trace.Info) if !ok { return false } trace := trcAll || !HasPrefix(trcInfo.ReqInfo.Path, minioReservedBucketPath+SlashSeparator) if errOnly { return trace && trcInfo.RespInfo.StatusCode >= http.StatusBadRequest } return trace } // TraceHandler - POST /minio/admin/v2/trace // ---------- // The handler sends http trace to the connected HTTP client. func (a adminAPIHandlers) TraceHandler(w http.ResponseWriter, r *http.Request) { ctx := newContext(r, w, "HTTPTrace") trcAll := r.URL.Query().Get("all") == "true" trcErr := r.URL.Query().Get("err") == "true" // Validate request signature. _, adminAPIErr := checkAdminRequestAuthType(ctx, r, iampolicy.ListServerInfoAdminAction, "") if adminAPIErr != ErrNone { writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(adminAPIErr), r.URL) return } w.Header().Set(xhttp.ContentType, "text/event-stream") doneCh := make(chan struct{}) defer close(doneCh) // Trace Publisher and peer-trace-client uses nonblocking send and hence does not wait for slow receivers. // Use buffered channel to take care of burst sends or slow w.Write() traceCh := make(chan interface{}, 4000) peers := getRestClients(globalEndpoints) globalHTTPTrace.Subscribe(traceCh, doneCh, func(entry interface{}) bool { return mustTrace(entry, trcAll, trcErr) }) for _, peer := range peers { if peer == nil { continue } peer.Trace(traceCh, doneCh, trcAll, trcErr) } keepAliveTicker := time.NewTicker(500 * time.Millisecond) defer keepAliveTicker.Stop() enc := json.NewEncoder(w) for { select { case entry := <-traceCh: if err := enc.Encode(entry); err != nil { return } w.(http.Flusher).Flush() case <-keepAliveTicker.C: if _, err := w.Write([]byte(" ")); err != nil { return } w.(http.Flusher).Flush() case <-GlobalServiceDoneCh: return } } } // The handler sends console logs to the connected HTTP client. func (a adminAPIHandlers) ConsoleLogHandler(w http.ResponseWriter, r *http.Request) { ctx := newContext(r, w, "ConsoleLog") objectAPI, _ := validateAdminReq(ctx, w, r, iampolicy.ListServerInfoAdminAction) if objectAPI == nil { return } node := r.URL.Query().Get("node") // limit buffered console entries if client requested it. limitStr := r.URL.Query().Get("limit") limitLines, err := strconv.Atoi(limitStr) if err != nil { limitLines = 10 } logKind := r.URL.Query().Get("logType") if logKind == "" { logKind = string(logger.All) } logKind = strings.ToUpper(logKind) // Avoid reusing tcp connection if read timeout is hit // This is needed to make r.Context().Done() work as // expected in case of read timeout w.Header().Add("Connection", "close") w.Header().Set(xhttp.ContentType, "text/event-stream") doneCh := make(chan struct{}) defer close(doneCh) logCh := make(chan interface{}, 4000) peers := getRestClients(globalEndpoints) globalConsoleSys.Subscribe(logCh, doneCh, node, limitLines, logKind, nil) for _, peer := range peers { if peer == nil { continue } if node == "" || strings.EqualFold(peer.host.Name, node) { peer.ConsoleLog(logCh, doneCh) } } enc := json.NewEncoder(w) keepAliveTicker := time.NewTicker(500 * time.Millisecond) defer keepAliveTicker.Stop() for { select { case entry := <-logCh: log := entry.(madmin.LogInfo) if log.SendLog(node, logKind) { if err := enc.Encode(log); err != nil { return } w.(http.Flusher).Flush() } case <-keepAliveTicker.C: if _, err := w.Write([]byte(" ")); err != nil { return } w.(http.Flusher).Flush() case <-GlobalServiceDoneCh: return } } } // KMSKeyStatusHandler - GET /minio/admin/v2/kms/key/status?key-id= func (a adminAPIHandlers) KMSKeyStatusHandler(w http.ResponseWriter, r *http.Request) { ctx := newContext(r, w, "KMSKeyStatusHandler") objectAPI, _ := validateAdminReq(ctx, w, r, iampolicy.ListServerInfoAdminAction) if objectAPI == nil { return } if GlobalKMS == nil { writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrKMSNotConfigured), r.URL) return } keyID := r.URL.Query().Get("key-id") if keyID == "" { keyID = GlobalKMS.KeyID() } var response = madmin.KMSKeyStatus{ KeyID: keyID, } kmsContext := crypto.Context{"MinIO admin API": "KMSKeyStatusHandler"} // Context for a test key operation // 1. Generate a new key using the KMS. key, sealedKey, err := GlobalKMS.GenerateKey(keyID, kmsContext) if err != nil { response.EncryptionErr = err.Error() resp, err := json.Marshal(response) if err != nil { writeCustomErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrInternalError), err.Error(), r.URL) return } writeSuccessResponseJSON(w, resp) return } // 2. Check whether we can update / re-wrap the sealed key. sealedKey, err = GlobalKMS.UpdateKey(keyID, sealedKey, kmsContext) if err != nil { response.UpdateErr = err.Error() resp, err := json.Marshal(response) if err != nil { writeCustomErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrInternalError), err.Error(), r.URL) return } writeSuccessResponseJSON(w, resp) return } // 3. Verify that we can indeed decrypt the (encrypted) key decryptedKey, err := GlobalKMS.UnsealKey(keyID, sealedKey, kmsContext) if err != nil { response.DecryptionErr = err.Error() resp, err := json.Marshal(response) if err != nil { writeCustomErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrInternalError), err.Error(), r.URL) return } writeSuccessResponseJSON(w, resp) return } // 4. Compare generated key with decrypted key if subtle.ConstantTimeCompare(key[:], decryptedKey[:]) != 1 { response.DecryptionErr = "The generated and the decrypted data key do not match" resp, err := json.Marshal(response) if err != nil { writeCustomErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrInternalError), err.Error(), r.URL) return } writeSuccessResponseJSON(w, resp) return } resp, err := json.Marshal(response) if err != nil { writeCustomErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrInternalError), err.Error(), r.URL) return } writeSuccessResponseJSON(w, resp) } // ServerHardwareInfoHandler - GET /minio/admin/v2/hardwareinfo?Type={hwType} // ---------- // Get all hardware information based on input type // Supported types = cpu func (a adminAPIHandlers) ServerHardwareInfoHandler(w http.ResponseWriter, r *http.Request) { ctx := newContext(r, w, "HardwareInfo") objectAPI, _ := validateAdminReq(ctx, w, r, iampolicy.ListServerInfoAdminAction) if objectAPI == nil { return } vars := mux.Vars(r) hardware := vars[madmin.HARDWARE] switch madmin.HardwareType(hardware) { case madmin.CPU: // Get CPU hardware details from local server's cpu(s) cpu := getLocalCPUInfo(globalEndpoints, r) // Notify all other MinIO peers to report cpu hardware cpus := globalNotificationSys.CPUInfo() cpus = append(cpus, cpu) // Marshal API response jsonBytes, err := json.Marshal(cpus) if err != nil { writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL) return } // Reply with cpu hardware information (across nodes in a // distributed setup) as json. writeSuccessResponseJSON(w, jsonBytes) case madmin.NETWORK: // Get Network hardware details from local server's network(s) network := getLocalNetworkInfo(globalEndpoints, r) // Notify all other MinIO peers to report network hardware networks := globalNotificationSys.NetworkInfo() networks = append(networks, network) // Marshal API response jsonBytes, err := json.Marshal(networks) if err != nil { writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL) return } // Reply with cpu network information (across nodes in a // distributed setup) as json. writeSuccessResponseJSON(w, jsonBytes) default: writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrBadRequest), r.URL) } }