c9940d8c3f
- Introduces changes such as certain types of errors that can be ignored or which need to go into safe mode. - Update help text as per the review
474 lines
13 KiB
Go
474 lines
13 KiB
Go
/*
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* MinIO Cloud Storage, (C) 2019 MinIO, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package cmd
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import (
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"bytes"
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"context"
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"encoding/json"
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"io"
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"net/http"
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"strconv"
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"strings"
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"github.com/gorilla/mux"
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"github.com/minio/minio/cmd/config"
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"github.com/minio/minio/cmd/config/cache"
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"github.com/minio/minio/cmd/config/etcd"
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xldap "github.com/minio/minio/cmd/config/identity/ldap"
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"github.com/minio/minio/cmd/config/identity/openid"
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"github.com/minio/minio/cmd/config/policy/opa"
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"github.com/minio/minio/cmd/config/storageclass"
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"github.com/minio/minio/cmd/crypto"
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"github.com/minio/minio/cmd/logger"
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iampolicy "github.com/minio/minio/pkg/iam/policy"
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"github.com/minio/minio/pkg/madmin"
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)
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func validateAdminReqConfigKV(ctx context.Context, w http.ResponseWriter, r *http.Request) ObjectLayer {
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// Get current object layer instance.
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objectAPI := newObjectLayerWithoutSafeModeFn()
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if objectAPI == nil {
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writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrServerNotInitialized), r.URL)
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return nil
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}
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// Validate request signature.
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_, adminAPIErr := checkAdminRequestAuthType(ctx, r, iampolicy.ConfigUpdateAdminAction, "")
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if adminAPIErr != ErrNone {
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writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(adminAPIErr), r.URL)
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return nil
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}
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return objectAPI
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}
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// DelConfigKVHandler - DELETE /minio/admin/v2/del-config-kv
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func (a adminAPIHandlers) DelConfigKVHandler(w http.ResponseWriter, r *http.Request) {
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ctx := newContext(r, w, "DelConfigKVHandler")
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objectAPI := validateAdminReqConfigKV(ctx, w, r)
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if objectAPI == nil {
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return
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}
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// Deny if WORM is enabled
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if globalWORMEnabled {
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writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrMethodNotAllowed), r.URL)
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return
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}
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if r.ContentLength > maxEConfigJSONSize || r.ContentLength == -1 {
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// More than maxConfigSize bytes were available
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writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrAdminConfigTooLarge), r.URL)
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return
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}
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password := globalActiveCred.SecretKey
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kvBytes, err := madmin.DecryptData(password, io.LimitReader(r.Body, r.ContentLength))
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if err != nil {
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logger.LogIf(ctx, err, logger.Application)
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writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrAdminConfigBadJSON), r.URL)
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return
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}
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cfg, err := readServerConfig(ctx, objectAPI)
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if err != nil {
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writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
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return
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}
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if err = cfg.DelFrom(bytes.NewReader(kvBytes)); err != nil {
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writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
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return
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}
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if err = saveServerConfig(ctx, objectAPI, cfg); err != nil {
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writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
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return
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}
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}
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// SetConfigKVHandler - PUT /minio/admin/v2/set-config-kv
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func (a adminAPIHandlers) SetConfigKVHandler(w http.ResponseWriter, r *http.Request) {
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ctx := newContext(r, w, "SetConfigKVHandler")
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objectAPI := validateAdminReqConfigKV(ctx, w, r)
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if objectAPI == nil {
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return
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}
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// Deny if WORM is enabled
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if globalWORMEnabled {
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writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrMethodNotAllowed), r.URL)
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return
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}
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if r.ContentLength > maxEConfigJSONSize || r.ContentLength == -1 {
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// More than maxConfigSize bytes were available
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writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrAdminConfigTooLarge), r.URL)
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return
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}
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password := globalActiveCred.SecretKey
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kvBytes, err := madmin.DecryptData(password, io.LimitReader(r.Body, r.ContentLength))
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if err != nil {
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logger.LogIf(ctx, err, logger.Application)
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writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrAdminConfigBadJSON), r.URL)
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return
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}
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cfg, err := readServerConfig(ctx, objectAPI)
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if err != nil {
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writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
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return
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}
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if _, err = cfg.ReadFrom(bytes.NewReader(kvBytes)); err != nil {
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writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
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return
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}
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if err = validateConfig(cfg); err != nil {
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writeCustomErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrAdminConfigBadJSON), err.Error(), r.URL)
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return
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}
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// Update the actual server config on disk.
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if err = saveServerConfig(ctx, objectAPI, cfg); err != nil {
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writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
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return
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}
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// Write to the config input KV to history.
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if err = saveServerConfigHistory(ctx, objectAPI, kvBytes); err != nil {
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writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
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return
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}
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// Make sure to write backend is encrypted
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if globalConfigEncrypted {
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saveConfig(context.Background(), objectAPI, backendEncryptedFile, backendEncryptedMigrationComplete)
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}
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writeSuccessResponseHeadersOnly(w)
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}
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// GetConfigKVHandler - GET /minio/admin/v2/get-config-kv?key={key}
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func (a adminAPIHandlers) GetConfigKVHandler(w http.ResponseWriter, r *http.Request) {
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ctx := newContext(r, w, "GetConfigKVHandler")
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objectAPI := validateAdminReqConfigKV(ctx, w, r)
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if objectAPI == nil {
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return
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}
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cfg := globalServerConfig
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if globalSafeMode {
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var err error
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cfg, err = getValidConfig(objectAPI)
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if err != nil {
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writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
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return
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}
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}
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vars := mux.Vars(r)
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var buf = &bytes.Buffer{}
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cw := config.NewConfigWriteTo(cfg, vars["key"])
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if _, err := cw.WriteTo(buf); err != nil {
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writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
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return
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}
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password := globalActiveCred.SecretKey
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econfigData, err := madmin.EncryptData(password, buf.Bytes())
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if err != nil {
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writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
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return
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}
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writeSuccessResponseJSON(w, econfigData)
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}
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func (a adminAPIHandlers) ClearConfigHistoryKVHandler(w http.ResponseWriter, r *http.Request) {
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ctx := newContext(r, w, "ClearConfigHistoryKVHandler")
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objectAPI := validateAdminReqConfigKV(ctx, w, r)
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if objectAPI == nil {
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return
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}
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vars := mux.Vars(r)
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restoreID := vars["restoreId"]
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if restoreID == "" {
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writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrInvalidRequest), r.URL)
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return
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}
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if restoreID == "all" {
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chEntries, err := listServerConfigHistory(ctx, objectAPI, false, -1)
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if err != nil {
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writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
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return
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}
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for _, chEntry := range chEntries {
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if err = delServerConfigHistory(ctx, objectAPI, chEntry.RestoreID); err != nil {
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writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
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return
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}
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}
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} else {
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if err := delServerConfigHistory(ctx, objectAPI, restoreID); err != nil {
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writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
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return
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}
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}
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}
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// RestoreConfigHistoryKVHandler - restores a config with KV settings for the given KV id.
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func (a adminAPIHandlers) RestoreConfigHistoryKVHandler(w http.ResponseWriter, r *http.Request) {
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ctx := newContext(r, w, "RestoreConfigHistoryKVHandler")
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objectAPI := validateAdminReqConfigKV(ctx, w, r)
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if objectAPI == nil {
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return
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}
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vars := mux.Vars(r)
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restoreID := vars["restoreId"]
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if restoreID == "" {
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writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrInvalidRequest), r.URL)
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return
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}
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kvBytes, err := readServerConfigHistory(ctx, objectAPI, restoreID)
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if err != nil {
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writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
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return
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}
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cfg, err := readServerConfig(ctx, objectAPI)
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if err != nil {
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writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
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return
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}
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if _, err = cfg.ReadFrom(bytes.NewReader(kvBytes)); err != nil {
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writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
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return
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}
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if err = validateConfig(cfg); err != nil {
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writeCustomErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrAdminConfigBadJSON), err.Error(), r.URL)
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return
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}
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if err = saveServerConfig(ctx, objectAPI, cfg); err != nil {
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writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
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return
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}
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delServerConfigHistory(ctx, objectAPI, restoreID)
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}
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// ListConfigHistoryKVHandler - lists all the KV ids.
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func (a adminAPIHandlers) ListConfigHistoryKVHandler(w http.ResponseWriter, r *http.Request) {
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ctx := newContext(r, w, "ListConfigHistoryKVHandler")
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objectAPI := validateAdminReqConfigKV(ctx, w, r)
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if objectAPI == nil {
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return
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}
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vars := mux.Vars(r)
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count, err := strconv.Atoi(vars["count"])
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if err != nil {
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writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
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return
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}
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chEntries, err := listServerConfigHistory(ctx, objectAPI, true, count)
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if err != nil {
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writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
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return
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}
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data, err := json.Marshal(chEntries)
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if err != nil {
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writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
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return
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}
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password := globalActiveCred.SecretKey
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econfigData, err := madmin.EncryptData(password, data)
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if err != nil {
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writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
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return
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}
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writeSuccessResponseJSON(w, econfigData)
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}
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// HelpConfigKVHandler - GET /minio/admin/v2/help-config-kv?subSys={subSys}&key={key}
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func (a adminAPIHandlers) HelpConfigKVHandler(w http.ResponseWriter, r *http.Request) {
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ctx := newContext(r, w, "HelpConfigKVHandler")
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objectAPI := validateAdminReqConfigKV(ctx, w, r)
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if objectAPI == nil {
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return
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}
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vars := mux.Vars(r)
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subSys := vars["subSys"]
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key := vars["key"]
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_, envOnly := r.URL.Query()["env"]
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rd, err := GetHelp(subSys, key, envOnly)
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if err != nil {
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writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
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return
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}
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json.NewEncoder(w).Encode(rd)
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w.(http.Flusher).Flush()
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}
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// SetConfigHandler - PUT /minio/admin/v2/config
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func (a adminAPIHandlers) SetConfigHandler(w http.ResponseWriter, r *http.Request) {
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ctx := newContext(r, w, "SetConfigHandler")
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objectAPI := validateAdminReqConfigKV(ctx, w, r)
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if objectAPI == nil {
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return
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}
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// Deny if WORM is enabled
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if globalWORMEnabled {
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writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrMethodNotAllowed), r.URL)
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return
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}
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if r.ContentLength > maxEConfigJSONSize || r.ContentLength == -1 {
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// More than maxConfigSize bytes were available
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writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrAdminConfigTooLarge), r.URL)
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return
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}
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password := globalActiveCred.SecretKey
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kvBytes, err := madmin.DecryptData(password, io.LimitReader(r.Body, r.ContentLength))
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if err != nil {
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logger.LogIf(ctx, err, logger.Application)
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writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrAdminConfigBadJSON), r.URL)
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return
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}
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cfg := newServerConfig()
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if _, err = cfg.ReadFrom(bytes.NewReader(kvBytes)); err != nil {
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writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
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return
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}
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if err = validateConfig(cfg); err != nil {
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writeCustomErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrAdminConfigBadJSON), err.Error(), r.URL)
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return
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}
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// Update the actual server config on disk.
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if err = saveServerConfig(ctx, objectAPI, cfg); err != nil {
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writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
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return
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}
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// Write to the config input KV to history.
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if err = saveServerConfigHistory(ctx, objectAPI, kvBytes); err != nil {
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writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
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return
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}
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// Make sure to write backend is encrypted
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if globalConfigEncrypted {
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saveConfig(context.Background(), objectAPI, backendEncryptedFile, backendEncryptedMigrationComplete)
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}
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writeSuccessResponseHeadersOnly(w)
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}
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// GetConfigHandler - GET /minio/admin/v2/config
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// Get config.json of this minio setup.
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func (a adminAPIHandlers) GetConfigHandler(w http.ResponseWriter, r *http.Request) {
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ctx := newContext(r, w, "GetConfigHandler")
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objectAPI := validateAdminReqConfigKV(ctx, w, r)
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if objectAPI == nil {
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return
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}
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cfg, err := readServerConfig(ctx, objectAPI)
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if err != nil {
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writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
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return
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}
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var s strings.Builder
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hkvs := config.HelpSubSysMap[""]
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for _, hkv := range hkvs {
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v := cfg[hkv.Key]
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for target, kv := range v {
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off := kv.Get(config.Enable) == config.EnableOff
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switch hkv.Key {
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case config.EtcdSubSys:
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off = !etcd.Enabled(kv)
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case config.CacheSubSys:
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off = !cache.Enabled(kv)
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case config.StorageClassSubSys:
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off = !storageclass.Enabled(kv)
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case config.KmsVaultSubSys:
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off = !crypto.Enabled(kv)
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case config.PolicyOPASubSys:
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off = !opa.Enabled(kv)
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case config.IdentityOpenIDSubSys:
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off = !openid.Enabled(kv)
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case config.IdentityLDAPSubSys:
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off = !xldap.Enabled(kv)
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}
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if off {
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s.WriteString(config.KvComment)
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s.WriteString(config.KvSpaceSeparator)
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}
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s.WriteString(hkv.Key)
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if target != config.Default {
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s.WriteString(config.SubSystemSeparator)
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s.WriteString(target)
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}
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s.WriteString(config.KvSpaceSeparator)
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s.WriteString(kv.String())
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s.WriteString(config.KvNewline)
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}
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}
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password := globalActiveCred.SecretKey
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econfigData, err := madmin.EncryptData(password, []byte(s.String()))
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if err != nil {
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writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
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return
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}
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writeSuccessResponseJSON(w, econfigData)
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}
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