mirror of https://github.com/minio/minio.git
657 lines
19 KiB
Go
657 lines
19 KiB
Go
// Copyright (c) 2015-2022 MinIO, Inc.
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//
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// This file is part of MinIO Object Storage stack
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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package cmd
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import (
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"encoding/json"
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"errors"
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"fmt"
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"io"
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"net/http"
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"strings"
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"github.com/minio/madmin-go/v3"
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"github.com/minio/minio/internal/auth"
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"github.com/minio/mux"
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xldap "github.com/minio/pkg/v3/ldap"
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"github.com/minio/pkg/v3/policy"
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)
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// ListLDAPPolicyMappingEntities lists users/groups mapped to given/all policies.
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//
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// GET <admin-prefix>/idp/ldap/policy-entities?[query-params]
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//
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// Query params:
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//
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// user=... -> repeatable query parameter, specifying users to query for
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// policy mapping
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//
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// group=... -> repeatable query parameter, specifying groups to query for
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// policy mapping
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//
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// policy=... -> repeatable query parameter, specifying policy to query for
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// user/group mapping
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//
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// When all query parameters are omitted, returns mappings for all policies.
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func (a adminAPIHandlers) ListLDAPPolicyMappingEntities(w http.ResponseWriter, r *http.Request) {
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ctx := r.Context()
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// Check authorization.
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objectAPI, cred := validateAdminReq(ctx, w, r,
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policy.ListGroupsAdminAction, policy.ListUsersAdminAction, policy.ListUserPoliciesAdminAction)
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if objectAPI == nil {
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return
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}
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// Validate API arguments.
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q := madmin.PolicyEntitiesQuery{
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Users: r.Form["user"],
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Groups: r.Form["group"],
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Policy: r.Form["policy"],
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}
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// Query IAM
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res, err := globalIAMSys.QueryLDAPPolicyEntities(r.Context(), q)
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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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// Encode result and send response.
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data, err := json.Marshal(res)
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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 := cred.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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// AttachDetachPolicyLDAP attaches or detaches policies from an LDAP entity
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// (user or group).
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//
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// POST <admin-prefix>/idp/ldap/policy/{operation}
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func (a adminAPIHandlers) AttachDetachPolicyLDAP(w http.ResponseWriter, r *http.Request) {
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ctx := r.Context()
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// Check authorization.
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objectAPI, cred := validateAdminReq(ctx, w, r, policy.UpdatePolicyAssociationAction)
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if objectAPI == nil {
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return
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}
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// fail if ldap is not enabled
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if !globalIAMSys.LDAPConfig.Enabled() {
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writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrAdminLDAPNotEnabled), 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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// Ensure body content type is opaque to ensure that request body has not
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// been interpreted as form data.
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contentType := r.Header.Get("Content-Type")
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if contentType != "application/octet-stream" {
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writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrBadRequest), r.URL)
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return
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}
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// Validate operation
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operation := mux.Vars(r)["operation"]
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if operation != "attach" && operation != "detach" {
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writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrAdminInvalidArgument), r.URL)
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return
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}
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isAttach := operation == "attach"
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// Validate API arguments in body.
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password := cred.SecretKey
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reqBytes, err := madmin.DecryptData(password, io.LimitReader(r.Body, r.ContentLength))
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if err != nil {
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adminLogIf(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 par madmin.PolicyAssociationReq
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err = json.Unmarshal(reqBytes, &par)
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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 err := par.IsValid(); err != nil {
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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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// Call IAM subsystem
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updatedAt, addedOrRemoved, _, err := globalIAMSys.PolicyDBUpdateLDAP(ctx, isAttach, par)
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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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respBody := madmin.PolicyAssociationResp{
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UpdatedAt: updatedAt,
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}
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if isAttach {
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respBody.PoliciesAttached = addedOrRemoved
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} else {
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respBody.PoliciesDetached = addedOrRemoved
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}
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data, err := json.Marshal(respBody)
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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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encryptedData, 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, encryptedData)
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}
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// AddServiceAccountLDAP adds a new service account for provided LDAP username or DN
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//
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// PUT /minio/admin/v3/idp/ldap/add-service-account
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func (a adminAPIHandlers) AddServiceAccountLDAP(w http.ResponseWriter, r *http.Request) {
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ctx, cred, opts, createReq, targetUser, APIError := commonAddServiceAccount(r, true)
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if APIError.Code != "" {
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writeErrorResponseJSON(ctx, w, APIError, r.URL)
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return
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}
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// fail if ldap is not enabled
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if !globalIAMSys.LDAPConfig.Enabled() {
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writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrAdminLDAPNotEnabled), r.URL)
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return
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}
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// Find the user for the request sender (as it may be sent via a service
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// account or STS account):
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requestorUser := cred.AccessKey
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requestorParentUser := cred.AccessKey
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requestorGroups := cred.Groups
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requestorIsDerivedCredential := false
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if cred.IsServiceAccount() || cred.IsTemp() {
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requestorParentUser = cred.ParentUser
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requestorIsDerivedCredential = true
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}
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// Check if we are creating svc account for request sender.
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isSvcAccForRequestor := false
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if targetUser == requestorUser || targetUser == requestorParentUser {
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isSvcAccForRequestor = true
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}
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var (
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targetGroups []string
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err error
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)
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// If we are creating svc account for request sender, ensure that targetUser
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// is a real user (i.e. not derived credentials).
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if isSvcAccForRequestor {
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if requestorIsDerivedCredential {
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if requestorParentUser == "" {
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writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx,
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errors.New("service accounts cannot be generated for temporary credentials without parent")), r.URL)
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return
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}
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targetUser = requestorParentUser
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}
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targetGroups = requestorGroups
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// Deny if the target user is not LDAP
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foundResult, err := globalIAMSys.LDAPConfig.GetValidatedDNForUsername(targetUser)
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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 foundResult == nil {
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err := errors.New("Specified user does not exist on LDAP server")
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APIErr := errorCodes.ToAPIErrWithErr(ErrAdminNoSuchUser, err)
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writeErrorResponseJSON(ctx, w, APIErr, r.URL)
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return
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}
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// In case of LDAP/OIDC we need to set `opts.claims` to ensure
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// it is associated with the LDAP/OIDC user properly.
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for k, v := range cred.Claims {
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if k == expClaim {
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continue
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}
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opts.claims[k] = v
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}
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} else {
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// We still need to ensure that the target user is a valid LDAP user.
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//
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// The target user may be supplied as a (short) username or a DN.
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// However, for now, we only support using the short username.
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isDN := globalIAMSys.LDAPConfig.ParsesAsDN(targetUser)
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opts.claims[ldapUserN] = targetUser // simple username
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var lookupResult *xldap.DNSearchResult
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lookupResult, targetGroups, err = globalIAMSys.LDAPConfig.LookupUserDN(targetUser)
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if err != nil {
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// if not found, check if DN
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if strings.Contains(err.Error(), "User DN not found for:") {
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if isDN {
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// warn user that DNs are not allowed
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writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErrWithErr(ErrAdminLDAPExpectedLoginName, err), r.URL)
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} else {
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writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErrWithErr(ErrAdminNoSuchUser, err), r.URL)
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}
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}
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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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targetUser = lookupResult.NormDN
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opts.claims[ldapUser] = targetUser // DN
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opts.claims[ldapActualUser] = lookupResult.ActualDN
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// Check if this user or their groups have a policy applied.
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ldapPolicies, err := globalIAMSys.PolicyDBGet(targetUser, targetGroups...)
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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 len(ldapPolicies) == 0 {
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err = fmt.Errorf("No policy set for user `%s` or any of their groups: `%s`", opts.claims[ldapActualUser], strings.Join(targetGroups, "`,`"))
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writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErrWithErr(ErrAdminNoSuchUser, err), r.URL)
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return
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}
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// Add LDAP attributes that were looked up into the claims.
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for attribKey, attribValue := range lookupResult.Attributes {
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opts.claims[ldapAttribPrefix+attribKey] = attribValue
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}
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}
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newCred, updatedAt, err := globalIAMSys.NewServiceAccount(ctx, targetUser, targetGroups, opts)
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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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createResp := madmin.AddServiceAccountResp{
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Credentials: madmin.Credentials{
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AccessKey: newCred.AccessKey,
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SecretKey: newCred.SecretKey,
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Expiration: newCred.Expiration,
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},
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}
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data, err := json.Marshal(createResp)
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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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encryptedData, err := madmin.EncryptData(cred.SecretKey, 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, encryptedData)
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// Call hook for cluster-replication if the service account is not for a
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// root user.
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if newCred.ParentUser != globalActiveCred.AccessKey {
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replLogIf(ctx, globalSiteReplicationSys.IAMChangeHook(ctx, madmin.SRIAMItem{
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Type: madmin.SRIAMItemSvcAcc,
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SvcAccChange: &madmin.SRSvcAccChange{
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Create: &madmin.SRSvcAccCreate{
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Parent: newCred.ParentUser,
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AccessKey: newCred.AccessKey,
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SecretKey: newCred.SecretKey,
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Groups: newCred.Groups,
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Name: newCred.Name,
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Description: newCred.Description,
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Claims: opts.claims,
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SessionPolicy: createReq.Policy,
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Status: auth.AccountOn,
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Expiration: createReq.Expiration,
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},
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},
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UpdatedAt: updatedAt,
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}))
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}
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}
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// ListAccessKeysLDAP - GET /minio/admin/v3/idp/ldap/list-access-keys
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func (a adminAPIHandlers) ListAccessKeysLDAP(w http.ResponseWriter, r *http.Request) {
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ctx := r.Context()
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// Get current object layer instance.
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objectAPI := newObjectLayerFn()
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if objectAPI == nil || globalNotificationSys == nil {
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writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrServerNotInitialized), r.URL)
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return
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}
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cred, owner, s3Err := validateAdminSignature(ctx, r, "")
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if s3Err != ErrNone {
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writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(s3Err), r.URL)
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return
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}
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userDN := r.Form.Get("userDN")
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// If listing is requested for a specific user (who is not the request
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// sender), check that the user has permissions.
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if userDN != "" && userDN != cred.ParentUser {
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if !globalIAMSys.IsAllowed(policy.Args{
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AccountName: cred.AccessKey,
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Groups: cred.Groups,
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Action: policy.ListServiceAccountsAdminAction,
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ConditionValues: getConditionValues(r, "", cred),
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IsOwner: owner,
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Claims: cred.Claims,
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}) {
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writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrAccessDenied), r.URL)
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return
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}
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} else {
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if !globalIAMSys.IsAllowed(policy.Args{
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AccountName: cred.AccessKey,
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Groups: cred.Groups,
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Action: policy.ListServiceAccountsAdminAction,
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ConditionValues: getConditionValues(r, "", cred),
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IsOwner: owner,
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Claims: cred.Claims,
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DenyOnly: true,
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}) {
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writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrAccessDenied), r.URL)
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return
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}
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userDN = cred.AccessKey
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if cred.ParentUser != "" {
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userDN = cred.ParentUser
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}
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}
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dnResult, err := globalIAMSys.LDAPConfig.GetValidatedDNForUsername(userDN)
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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 dnResult == nil {
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writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, errNoSuchUser), r.URL)
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return
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}
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targetAccount := dnResult.NormDN
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listType := r.Form.Get("listType")
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if listType != "sts-only" && listType != "svcacc-only" && listType != "" {
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// default to both
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listType = ""
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}
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var serviceAccounts []auth.Credentials
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var stsKeys []auth.Credentials
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if listType == "" || listType == "sts-only" {
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stsKeys, err = globalIAMSys.ListSTSAccounts(ctx, targetAccount)
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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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if listType == "" || listType == "svcacc-only" {
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serviceAccounts, err = globalIAMSys.ListServiceAccounts(ctx, targetAccount)
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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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var serviceAccountList []madmin.ServiceAccountInfo
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var stsKeyList []madmin.ServiceAccountInfo
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for _, svc := range serviceAccounts {
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expiryTime := svc.Expiration
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serviceAccountList = append(serviceAccountList, madmin.ServiceAccountInfo{
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AccessKey: svc.AccessKey,
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Expiration: &expiryTime,
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})
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}
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for _, sts := range stsKeys {
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expiryTime := sts.Expiration
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stsKeyList = append(stsKeyList, madmin.ServiceAccountInfo{
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AccessKey: sts.AccessKey,
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Expiration: &expiryTime,
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})
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}
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listResp := madmin.ListAccessKeysLDAPResp{
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ServiceAccounts: serviceAccountList,
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STSKeys: stsKeyList,
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}
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data, err := json.Marshal(listResp)
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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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encryptedData, err := madmin.EncryptData(cred.SecretKey, 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, encryptedData)
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}
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// ListAccessKeysLDAPBulk - GET /minio/admin/v3/idp/ldap/list-access-keys-bulk
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func (a adminAPIHandlers) ListAccessKeysLDAPBulk(w http.ResponseWriter, r *http.Request) {
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ctx := r.Context()
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// Get current object layer instance.
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objectAPI := newObjectLayerFn()
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if objectAPI == nil || globalNotificationSys == nil {
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writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrServerNotInitialized), r.URL)
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return
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}
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cred, owner, s3Err := validateAdminSignature(ctx, r, "")
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if s3Err != ErrNone {
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writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(s3Err), r.URL)
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return
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}
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dnList := r.Form["userDNs"]
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isAll := r.Form.Get("all") == "true"
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selfOnly := !isAll && len(dnList) == 0
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if isAll && len(dnList) > 0 {
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// This should be checked on client side, so return generic error
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writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrInvalidRequest), r.URL)
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return
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}
|
|
|
|
// Empty DN list and not self, list access keys for all users
|
|
if isAll {
|
|
if !globalIAMSys.IsAllowed(policy.Args{
|
|
AccountName: cred.AccessKey,
|
|
Groups: cred.Groups,
|
|
Action: policy.ListUsersAdminAction,
|
|
ConditionValues: getConditionValues(r, "", cred),
|
|
IsOwner: owner,
|
|
Claims: cred.Claims,
|
|
}) {
|
|
writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrAccessDenied), r.URL)
|
|
return
|
|
}
|
|
} else if len(dnList) == 1 {
|
|
var dn string
|
|
foundResult, err := globalIAMSys.LDAPConfig.GetValidatedDNForUsername(dnList[0])
|
|
if err == nil {
|
|
dn = foundResult.NormDN
|
|
}
|
|
if dn == cred.ParentUser || dnList[0] == cred.ParentUser {
|
|
selfOnly = true
|
|
}
|
|
}
|
|
|
|
if !globalIAMSys.IsAllowed(policy.Args{
|
|
AccountName: cred.AccessKey,
|
|
Groups: cred.Groups,
|
|
Action: policy.ListServiceAccountsAdminAction,
|
|
ConditionValues: getConditionValues(r, "", cred),
|
|
IsOwner: owner,
|
|
Claims: cred.Claims,
|
|
DenyOnly: selfOnly,
|
|
}) {
|
|
writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrAccessDenied), r.URL)
|
|
return
|
|
}
|
|
|
|
if selfOnly && len(dnList) == 0 {
|
|
selfDN := cred.AccessKey
|
|
if cred.ParentUser != "" {
|
|
selfDN = cred.ParentUser
|
|
}
|
|
dnList = append(dnList, selfDN)
|
|
}
|
|
|
|
var ldapUserList []string
|
|
if isAll {
|
|
ldapUsers, err := globalIAMSys.ListLDAPUsers(ctx)
|
|
if err != nil {
|
|
writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
|
|
return
|
|
}
|
|
for user := range ldapUsers {
|
|
ldapUserList = append(ldapUserList, user)
|
|
}
|
|
} else {
|
|
for _, userDN := range dnList {
|
|
// Validate the userDN
|
|
foundResult, err := globalIAMSys.LDAPConfig.GetValidatedDNForUsername(userDN)
|
|
if err != nil {
|
|
writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
|
|
return
|
|
}
|
|
if foundResult == nil {
|
|
continue
|
|
}
|
|
ldapUserList = append(ldapUserList, foundResult.NormDN)
|
|
}
|
|
}
|
|
|
|
listType := r.Form.Get("listType")
|
|
var listSTSKeys, listServiceAccounts bool
|
|
switch listType {
|
|
case madmin.AccessKeyListUsersOnly:
|
|
listSTSKeys = false
|
|
listServiceAccounts = false
|
|
case madmin.AccessKeyListSTSOnly:
|
|
listSTSKeys = true
|
|
listServiceAccounts = false
|
|
case madmin.AccessKeyListSvcaccOnly:
|
|
listSTSKeys = false
|
|
listServiceAccounts = true
|
|
case madmin.AccessKeyListAll:
|
|
listSTSKeys = true
|
|
listServiceAccounts = true
|
|
default:
|
|
err := errors.New("invalid list type")
|
|
writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErrWithErr(ErrInvalidRequest, err), r.URL)
|
|
return
|
|
}
|
|
|
|
accessKeyMap := make(map[string]madmin.ListAccessKeysLDAPResp)
|
|
for _, internalDN := range ldapUserList {
|
|
externalDN := globalIAMSys.LDAPConfig.DecodeDN(internalDN)
|
|
accessKeys := madmin.ListAccessKeysLDAPResp{}
|
|
if listSTSKeys {
|
|
stsKeys, err := globalIAMSys.ListSTSAccounts(ctx, internalDN)
|
|
if err != nil {
|
|
writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
|
|
return
|
|
}
|
|
for _, sts := range stsKeys {
|
|
accessKeys.STSKeys = append(accessKeys.STSKeys, madmin.ServiceAccountInfo{
|
|
AccessKey: sts.AccessKey,
|
|
Expiration: &sts.Expiration,
|
|
})
|
|
}
|
|
// if only STS keys, skip if user has no STS keys
|
|
if !listServiceAccounts && len(stsKeys) == 0 {
|
|
continue
|
|
}
|
|
}
|
|
|
|
if listServiceAccounts {
|
|
serviceAccounts, err := globalIAMSys.ListServiceAccounts(ctx, internalDN)
|
|
if err != nil {
|
|
writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
|
|
return
|
|
}
|
|
for _, svc := range serviceAccounts {
|
|
accessKeys.ServiceAccounts = append(accessKeys.ServiceAccounts, madmin.ServiceAccountInfo{
|
|
AccessKey: svc.AccessKey,
|
|
Expiration: &svc.Expiration,
|
|
})
|
|
}
|
|
// if only service accounts, skip if user has no service accounts
|
|
if !listSTSKeys && len(serviceAccounts) == 0 {
|
|
continue
|
|
}
|
|
}
|
|
accessKeyMap[externalDN] = accessKeys
|
|
}
|
|
|
|
data, err := json.Marshal(accessKeyMap)
|
|
if err != nil {
|
|
writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
|
|
return
|
|
}
|
|
|
|
encryptedData, err := madmin.EncryptData(cred.SecretKey, data)
|
|
if err != nil {
|
|
writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
|
|
return
|
|
}
|
|
|
|
writeSuccessResponseJSON(w, encryptedData)
|
|
}
|