6695fd6a61
In existing functionality we simply return a generic error such as "MalformedPolicy" which indicates just a generic string "invalid resource" which is not very meaningful when there might be multiple types of errors during policy parsing. This PR ensures that we send these errors back to client to indicate the actual error, brings in two concrete types such as - iampolicy.Error - policy.Error Refer #8202
556 lines
15 KiB
Go
556 lines
15 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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"context"
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"encoding/json"
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"io"
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"io/ioutil"
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"net/http"
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"github.com/gorilla/mux"
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"github.com/minio/minio/cmd/logger"
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"github.com/minio/minio/pkg/auth"
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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 validateAdminUsersReq(ctx context.Context, w http.ResponseWriter, r *http.Request, action iampolicy.AdminAction) (ObjectLayer, auth.Credentials) {
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var cred auth.Credentials
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var adminAPIErr APIErrorCode
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// Get current object layer instance.
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objectAPI := newObjectLayerWithoutSafeModeFn()
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if objectAPI == nil || globalNotificationSys == nil || globalIAMSys == nil {
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writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrServerNotInitialized), r.URL)
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return nil, cred
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}
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// Validate request signature.
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cred, adminAPIErr = checkAdminRequestAuthType(ctx, r, action, "")
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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, cred
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}
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return objectAPI, cred
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}
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// RemoveUser - DELETE /minio/admin/v2/remove-user?accessKey=<access_key>
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func (a adminAPIHandlers) RemoveUser(w http.ResponseWriter, r *http.Request) {
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ctx := newContext(r, w, "RemoveUser")
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objectAPI, _ := validateAdminUsersReq(ctx, w, r, iampolicy.DeleteUserAdminAction)
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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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vars := mux.Vars(r)
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accessKey := vars["accessKey"]
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ok, err := globalIAMSys.IsTempUser(accessKey)
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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 ok {
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writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, errIAMActionNotAllowed), r.URL)
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return
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}
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if err := globalIAMSys.DeleteUser(accessKey); 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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// Notify all other MinIO peers to delete user.
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for _, nerr := range globalNotificationSys.DeleteUser(accessKey) {
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if nerr.Err != nil {
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logger.GetReqInfo(ctx).SetTags("peerAddress", nerr.Host.String())
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logger.LogIf(ctx, nerr.Err)
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}
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}
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}
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// ListUsers - GET /minio/admin/v2/list-users
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func (a adminAPIHandlers) ListUsers(w http.ResponseWriter, r *http.Request) {
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ctx := newContext(r, w, "ListUsers")
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objectAPI, _ := validateAdminUsersReq(ctx, w, r, iampolicy.ListUsersAdminAction)
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if objectAPI == nil {
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return
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}
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allCredentials, err := globalIAMSys.ListUsers()
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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(allCredentials)
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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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// GetUserInfo - GET /minio/admin/v2/user-info
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func (a adminAPIHandlers) GetUserInfo(w http.ResponseWriter, r *http.Request) {
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ctx := newContext(r, w, "GetUserInfo")
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objectAPI, _ := validateAdminUsersReq(ctx, w, r, iampolicy.GetUserAdminAction)
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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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name := vars["accessKey"]
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userInfo, err := globalIAMSys.GetUserInfo(name)
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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(userInfo)
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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, data)
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}
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// UpdateGroupMembers - PUT /minio/admin/v2/update-group-members
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func (a adminAPIHandlers) UpdateGroupMembers(w http.ResponseWriter, r *http.Request) {
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ctx := newContext(r, w, "UpdateGroupMembers")
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objectAPI, _ := validateAdminUsersReq(ctx, w, r, iampolicy.AddUserToGroupAdminAction)
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if objectAPI == nil {
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return
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}
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defer r.Body.Close()
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data, err := ioutil.ReadAll(r.Body)
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if err != nil {
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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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var updReq madmin.GroupAddRemove
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err = json.Unmarshal(data, &updReq)
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if err != nil {
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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 updReq.IsRemove {
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err = globalIAMSys.RemoveUsersFromGroup(updReq.Group, updReq.Members)
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} else {
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err = globalIAMSys.AddUsersToGroup(updReq.Group, updReq.Members)
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}
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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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// Notify all other MinIO peers to load group.
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for _, nerr := range globalNotificationSys.LoadGroup(updReq.Group) {
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if nerr.Err != nil {
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logger.GetReqInfo(ctx).SetTags("peerAddress", nerr.Host.String())
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logger.LogIf(ctx, nerr.Err)
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}
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}
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}
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// GetGroup - /minio/admin/v2/group?group=mygroup1
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func (a adminAPIHandlers) GetGroup(w http.ResponseWriter, r *http.Request) {
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ctx := newContext(r, w, "GetGroup")
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objectAPI, _ := validateAdminUsersReq(ctx, w, r, iampolicy.GetGroupAdminAction)
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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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group := vars["group"]
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gdesc, err := globalIAMSys.GetGroupDescription(group)
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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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body, err := json.Marshal(gdesc)
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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, body)
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}
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// ListGroups - GET /minio/admin/v2/groups
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func (a adminAPIHandlers) ListGroups(w http.ResponseWriter, r *http.Request) {
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ctx := newContext(r, w, "ListGroups")
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objectAPI, _ := validateAdminUsersReq(ctx, w, r, iampolicy.ListGroupsAdminAction)
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if objectAPI == nil {
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return
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}
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groups, err := globalIAMSys.ListGroups()
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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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body, err := json.Marshal(groups)
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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, body)
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}
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// SetGroupStatus - PUT /minio/admin/v2/set-group-status?group=mygroup1&status=enabled
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func (a adminAPIHandlers) SetGroupStatus(w http.ResponseWriter, r *http.Request) {
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ctx := newContext(r, w, "SetGroupStatus")
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objectAPI, _ := validateAdminUsersReq(ctx, w, r, iampolicy.EnableGroupAdminAction)
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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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group := vars["group"]
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status := vars["status"]
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var err error
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if status == statusEnabled {
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err = globalIAMSys.SetGroupStatus(group, true)
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} else if status == statusDisabled {
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err = globalIAMSys.SetGroupStatus(group, false)
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} else {
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err = errInvalidArgument
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}
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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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// Notify all other MinIO peers to reload user.
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for _, nerr := range globalNotificationSys.LoadGroup(group) {
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if nerr.Err != nil {
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logger.GetReqInfo(ctx).SetTags("peerAddress", nerr.Host.String())
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logger.LogIf(ctx, nerr.Err)
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}
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}
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}
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// SetUserStatus - PUT /minio/admin/v2/set-user-status?accessKey=<access_key>&status=[enabled|disabled]
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func (a adminAPIHandlers) SetUserStatus(w http.ResponseWriter, r *http.Request) {
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ctx := newContext(r, w, "SetUserStatus")
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objectAPI, _ := validateAdminUsersReq(ctx, w, r, iampolicy.EnableUserAdminAction)
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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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vars := mux.Vars(r)
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accessKey := vars["accessKey"]
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status := vars["status"]
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// Custom IAM policies not allowed for admin user.
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if accessKey == globalActiveCred.AccessKey {
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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 err := globalIAMSys.SetUserStatus(accessKey, madmin.AccountStatus(status)); 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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// Notify all other MinIO peers to reload user.
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for _, nerr := range globalNotificationSys.LoadUser(accessKey, false) {
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if nerr.Err != nil {
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logger.GetReqInfo(ctx).SetTags("peerAddress", nerr.Host.String())
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logger.LogIf(ctx, nerr.Err)
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}
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}
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}
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// AddUser - PUT /minio/admin/v2/add-user?accessKey=<access_key>
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func (a adminAPIHandlers) AddUser(w http.ResponseWriter, r *http.Request) {
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ctx := newContext(r, w, "AddUser")
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objectAPI, cred := validateAdminUsersReq(ctx, w, r, iampolicy.CreateUserAdminAction)
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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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vars := mux.Vars(r)
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accessKey := vars["accessKey"]
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// Custom IAM policies not allowed for admin user.
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if accessKey == globalActiveCred.AccessKey {
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writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrAddUserInvalidArgument), 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 := cred.SecretKey
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configBytes, 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)
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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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var uinfo madmin.UserInfo
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if err = json.Unmarshal(configBytes, &uinfo); err != nil {
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logger.LogIf(ctx, err)
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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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if err = globalIAMSys.SetUser(accessKey, uinfo); 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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// Notify all other Minio peers to reload user
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for _, nerr := range globalNotificationSys.LoadUser(accessKey, false) {
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if nerr.Err != nil {
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logger.GetReqInfo(ctx).SetTags("peerAddress", nerr.Host.String())
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logger.LogIf(ctx, nerr.Err)
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}
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}
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}
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// InfoCannedPolicy - GET /minio/admin/v2/info-canned-policy?name={policyName}
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func (a adminAPIHandlers) InfoCannedPolicy(w http.ResponseWriter, r *http.Request) {
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ctx := newContext(r, w, "InfoCannedPolicy")
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objectAPI, _ := validateAdminUsersReq(ctx, w, r, iampolicy.GetPolicyAdminAction)
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if objectAPI == nil {
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return
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}
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data, err := globalIAMSys.InfoPolicy(mux.Vars(r)["name"])
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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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w.Write(data)
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w.(http.Flusher).Flush()
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}
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// ListCannedPolicies - GET /minio/admin/v2/list-canned-policies
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func (a adminAPIHandlers) ListCannedPolicies(w http.ResponseWriter, r *http.Request) {
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ctx := newContext(r, w, "ListCannedPolicies")
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objectAPI, _ := validateAdminUsersReq(ctx, w, r, iampolicy.ListUserPoliciesAdminAction)
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if objectAPI == nil {
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return
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}
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policies, err := globalIAMSys.ListPolicies()
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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 = json.NewEncoder(w).Encode(policies); 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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w.(http.Flusher).Flush()
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}
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// RemoveCannedPolicy - DELETE /minio/admin/v2/remove-canned-policy?name=<policy_name>
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func (a adminAPIHandlers) RemoveCannedPolicy(w http.ResponseWriter, r *http.Request) {
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ctx := newContext(r, w, "RemoveCannedPolicy")
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objectAPI, _ := validateAdminUsersReq(ctx, w, r, iampolicy.DeletePolicyAdminAction)
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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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policyName := vars["name"]
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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 err := globalIAMSys.DeletePolicy(policyName); 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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// Notify all other MinIO peers to delete policy
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for _, nerr := range globalNotificationSys.DeletePolicy(policyName) {
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if nerr.Err != nil {
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logger.GetReqInfo(ctx).SetTags("peerAddress", nerr.Host.String())
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logger.LogIf(ctx, nerr.Err)
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}
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}
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}
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// AddCannedPolicy - PUT /minio/admin/v2/add-canned-policy?name=<policy_name>
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func (a adminAPIHandlers) AddCannedPolicy(w http.ResponseWriter, r *http.Request) {
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ctx := newContext(r, w, "AddCannedPolicy")
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objectAPI, _ := validateAdminUsersReq(ctx, w, r, iampolicy.CreatePolicyAdminAction)
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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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policyName := vars["name"]
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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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// Error out if Content-Length is missing.
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if r.ContentLength <= 0 {
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writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrMissingContentLength), r.URL)
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return
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}
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// Error out if Content-Length is beyond allowed size.
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if r.ContentLength > maxBucketPolicySize {
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writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrEntityTooLarge), r.URL)
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return
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}
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iamPolicy, err := iampolicy.ParseConfig(io.LimitReader(r.Body, r.ContentLength))
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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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// Version in policy must not be empty
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if iamPolicy.Version == "" {
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writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrMalformedPolicy), r.URL)
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return
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}
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if err = globalIAMSys.SetPolicy(policyName, *iamPolicy); 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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// Notify all other MinIO peers to reload policy
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for _, nerr := range globalNotificationSys.LoadPolicy(policyName) {
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if nerr.Err != nil {
|
|
logger.GetReqInfo(ctx).SetTags("peerAddress", nerr.Host.String())
|
|
logger.LogIf(ctx, nerr.Err)
|
|
}
|
|
}
|
|
}
|
|
|
|
// SetPolicyForUserOrGroup - PUT /minio/admin/v2/set-policy?policy=xxx&user-or-group=?[&is-group]
|
|
func (a adminAPIHandlers) SetPolicyForUserOrGroup(w http.ResponseWriter, r *http.Request) {
|
|
ctx := newContext(r, w, "SetPolicyForUserOrGroup")
|
|
|
|
objectAPI, _ := validateAdminUsersReq(ctx, w, r, iampolicy.AttachPolicyAdminAction)
|
|
if objectAPI == nil {
|
|
return
|
|
}
|
|
|
|
vars := mux.Vars(r)
|
|
policyName := vars["policyName"]
|
|
entityName := vars["userOrGroup"]
|
|
isGroup := vars["isGroup"] == "true"
|
|
|
|
// Deny if WORM is enabled
|
|
if globalWORMEnabled {
|
|
writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrMethodNotAllowed), r.URL)
|
|
return
|
|
}
|
|
|
|
if !isGroup {
|
|
ok, err := globalIAMSys.IsTempUser(entityName)
|
|
if err != nil {
|
|
writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
|
|
return
|
|
}
|
|
if ok {
|
|
writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, errIAMActionNotAllowed), r.URL)
|
|
return
|
|
}
|
|
}
|
|
|
|
if err := globalIAMSys.PolicyDBSet(entityName, policyName, isGroup); err != nil {
|
|
writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
|
|
return
|
|
}
|
|
|
|
// Notify all other MinIO peers to reload policy
|
|
for _, nerr := range globalNotificationSys.LoadPolicyMapping(entityName, isGroup) {
|
|
if nerr.Err != nil {
|
|
logger.GetReqInfo(ctx).SetTags("peerAddress", nerr.Host.String())
|
|
logger.LogIf(ctx, nerr.Err)
|
|
}
|
|
}
|
|
}
|