minio/cmd/admin-handlers-idp-config.go

443 lines
13 KiB
Go

// Copyright (c) 2015-2022 MinIO, Inc.
//
// This file is part of MinIO Object Storage stack
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package cmd
import (
"context"
"encoding/json"
"errors"
"fmt"
"io"
"net/http"
"strings"
"github.com/minio/madmin-go/v3"
"github.com/minio/minio-go/v7/pkg/set"
"github.com/minio/minio/internal/config"
cfgldap "github.com/minio/minio/internal/config/identity/ldap"
"github.com/minio/minio/internal/config/identity/openid"
"github.com/minio/minio/internal/logger"
"github.com/minio/mux"
"github.com/minio/pkg/v2/ldap"
"github.com/minio/pkg/v2/policy"
)
func addOrUpdateIDPHandler(ctx context.Context, w http.ResponseWriter, r *http.Request, isUpdate bool) {
objectAPI, cred := validateAdminReq(ctx, w, r, policy.ConfigUpdateAdminAction)
if objectAPI == nil {
return
}
if r.ContentLength > maxEConfigJSONSize || r.ContentLength == -1 {
// More than maxConfigSize bytes were available
writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrAdminConfigTooLarge), r.URL)
return
}
// Ensure body content type is opaque to ensure that request body has not
// been interpreted as form data.
contentType := r.Header.Get("Content-Type")
if contentType != "application/octet-stream" {
writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrBadRequest), r.URL)
return
}
password := cred.SecretKey
reqBytes, err := madmin.DecryptData(password, io.LimitReader(r.Body, r.ContentLength))
if err != nil {
logger.LogIf(ctx, err, logger.Application)
writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrAdminConfigBadJSON), r.URL)
return
}
idpCfgType := mux.Vars(r)["type"]
if !madmin.ValidIDPConfigTypes.Contains(idpCfgType) {
writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrAdminConfigInvalidIDPType), r.URL)
return
}
var subSys string
switch idpCfgType {
case madmin.OpenidIDPCfg:
subSys = madmin.IdentityOpenIDSubSys
case madmin.LDAPIDPCfg:
subSys = madmin.IdentityLDAPSubSys
}
cfgName := mux.Vars(r)["name"]
cfgTarget := madmin.Default
if cfgName != "" {
cfgTarget = cfgName
if idpCfgType == madmin.LDAPIDPCfg && cfgName != madmin.Default {
// LDAP does not support multiple configurations. So cfgName must be
// empty or `madmin.Default`.
writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrAdminConfigLDAPNonDefaultConfigName), r.URL)
return
}
}
// Check that this is a valid Create vs Update API call.
s := globalServerConfig.Clone()
if apiErrCode := handleCreateUpdateValidation(s, subSys, cfgTarget, isUpdate); apiErrCode != ErrNone {
writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(apiErrCode), r.URL)
return
}
cfgData := ""
{
tgtSuffix := ""
if cfgTarget != madmin.Default {
tgtSuffix = config.SubSystemSeparator + cfgTarget
}
cfgData = subSys + tgtSuffix + config.KvSpaceSeparator + string(reqBytes)
}
cfg, err := readServerConfig(ctx, objectAPI, nil)
if err != nil {
writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
return
}
dynamic, err := cfg.ReadConfig(strings.NewReader(cfgData))
if err != nil {
writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
return
}
// IDP config is not dynamic. Sanity check.
if dynamic {
writeCustomErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrInternalError), err.Error(), r.URL)
return
}
if err = validateConfig(ctx, cfg, subSys); err != nil {
var validationErr ldap.Validation
if errors.As(err, &validationErr) {
// If we got an LDAP validation error, we need to send appropriate
// error message back to client (likely mc).
writeCustomErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrAdminConfigLDAPValidation),
validationErr.FormatError(), r.URL)
return
}
writeCustomErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrAdminConfigBadJSON), err.Error(), r.URL)
return
}
// Update the actual server config on disk.
if err = saveServerConfig(ctx, objectAPI, cfg); err != nil {
writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
return
}
// Write to the config input KV to history.
if err = saveServerConfigHistory(ctx, objectAPI, []byte(cfgData)); err != nil {
writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
return
}
writeSuccessResponseHeadersOnly(w)
}
func handleCreateUpdateValidation(s config.Config, subSys, cfgTarget string, isUpdate bool) APIErrorCode {
if cfgTarget != madmin.Default {
// This cannot give an error at this point.
subSysTargets, _ := s.GetAvailableTargets(subSys)
subSysTargetsSet := set.CreateStringSet(subSysTargets...)
if isUpdate && !subSysTargetsSet.Contains(cfgTarget) {
return ErrAdminConfigIDPCfgNameDoesNotExist
}
if !isUpdate && subSysTargetsSet.Contains(cfgTarget) {
return ErrAdminConfigIDPCfgNameAlreadyExists
}
return ErrNone
}
// For the default configuration name, since it will always be an available
// target, we need to check if a configuration value has been set previously
// to figure out if this is a valid create or update API call.
// This cannot really error (FIXME: improve the type for GetConfigInfo)
var cfgInfos []madmin.IDPCfgInfo
switch subSys {
case madmin.IdentityOpenIDSubSys:
cfgInfos, _ = globalIAMSys.OpenIDConfig.GetConfigInfo(s, cfgTarget)
case madmin.IdentityLDAPSubSys:
cfgInfos, _ = globalIAMSys.LDAPConfig.GetConfigInfo(s, cfgTarget)
}
if len(cfgInfos) > 0 && !isUpdate {
return ErrAdminConfigIDPCfgNameAlreadyExists
}
if len(cfgInfos) == 0 && isUpdate {
return ErrAdminConfigIDPCfgNameDoesNotExist
}
return ErrNone
}
// AddIdentityProviderCfg: adds a new IDP config for openid/ldap.
//
// PUT <admin-prefix>/idp-cfg/openid/dex1 -> create named config `dex1`
//
// PUT <admin-prefix>/idp-cfg/openid/_ -> create (default) named config `_`
func (a adminAPIHandlers) AddIdentityProviderCfg(w http.ResponseWriter, r *http.Request) {
ctx := r.Context()
addOrUpdateIDPHandler(ctx, w, r, false)
}
// UpdateIdentityProviderCfg: updates an existing IDP config for openid/ldap.
//
// POST <admin-prefix>/idp-cfg/openid/dex1 -> update named config `dex1`
//
// POST <admin-prefix>/idp-cfg/openid/_ -> update (default) named config `_`
func (a adminAPIHandlers) UpdateIdentityProviderCfg(w http.ResponseWriter, r *http.Request) {
ctx := r.Context()
addOrUpdateIDPHandler(ctx, w, r, true)
}
// ListIdentityProviderCfg:
//
// GET <admin-prefix>/idp-cfg/openid -> lists openid provider configs.
func (a adminAPIHandlers) ListIdentityProviderCfg(w http.ResponseWriter, r *http.Request) {
ctx := r.Context()
objectAPI, cred := validateAdminReq(ctx, w, r, policy.ConfigUpdateAdminAction)
if objectAPI == nil {
return
}
password := cred.SecretKey
idpCfgType := mux.Vars(r)["type"]
if !madmin.ValidIDPConfigTypes.Contains(idpCfgType) {
writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrAdminConfigInvalidIDPType), r.URL)
return
}
var cfgList []madmin.IDPListItem
var err error
switch idpCfgType {
case madmin.OpenidIDPCfg:
cfg := globalServerConfig.Clone()
cfgList, err = globalIAMSys.OpenIDConfig.GetConfigList(cfg)
case madmin.LDAPIDPCfg:
cfg := globalServerConfig.Clone()
cfgList, err = globalIAMSys.LDAPConfig.GetConfigList(cfg)
default:
writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrNotImplemented), r.URL)
return
}
if err != nil {
writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
return
}
data, err := json.Marshal(cfgList)
if err != nil {
writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
return
}
econfigData, err := madmin.EncryptData(password, data)
if err != nil {
writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
return
}
writeSuccessResponseJSON(w, econfigData)
}
// GetIdentityProviderCfg:
//
// GET <admin-prefix>/idp-cfg/openid/dex_test
func (a adminAPIHandlers) GetIdentityProviderCfg(w http.ResponseWriter, r *http.Request) {
ctx := r.Context()
objectAPI, cred := validateAdminReq(ctx, w, r, policy.ConfigUpdateAdminAction)
if objectAPI == nil {
return
}
idpCfgType := mux.Vars(r)["type"]
cfgName := mux.Vars(r)["name"]
password := cred.SecretKey
if !madmin.ValidIDPConfigTypes.Contains(idpCfgType) {
writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrAdminConfigInvalidIDPType), r.URL)
return
}
cfg := globalServerConfig.Clone()
var cfgInfos []madmin.IDPCfgInfo
var err error
switch idpCfgType {
case madmin.OpenidIDPCfg:
cfgInfos, err = globalIAMSys.OpenIDConfig.GetConfigInfo(cfg, cfgName)
case madmin.LDAPIDPCfg:
cfgInfos, err = globalIAMSys.LDAPConfig.GetConfigInfo(cfg, cfgName)
}
if err != nil {
if errors.Is(err, openid.ErrProviderConfigNotFound) || errors.Is(err, cfgldap.ErrProviderConfigNotFound) {
writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrAdminNoSuchConfigTarget), r.URL)
return
}
writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
return
}
res := madmin.IDPConfig{
Type: idpCfgType,
Name: cfgName,
Info: cfgInfos,
}
data, err := json.Marshal(res)
if err != nil {
writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
return
}
econfigData, err := madmin.EncryptData(password, data)
if err != nil {
writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
return
}
writeSuccessResponseJSON(w, econfigData)
}
// DeleteIdentityProviderCfg:
//
// DELETE <admin-prefix>/idp-cfg/openid/dex_test
func (a adminAPIHandlers) DeleteIdentityProviderCfg(w http.ResponseWriter, r *http.Request) {
ctx := r.Context()
objectAPI, _ := validateAdminReq(ctx, w, r, policy.ConfigUpdateAdminAction)
if objectAPI == nil {
return
}
idpCfgType := mux.Vars(r)["type"]
cfgName := mux.Vars(r)["name"]
if !madmin.ValidIDPConfigTypes.Contains(idpCfgType) {
writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrAdminConfigInvalidIDPType), r.URL)
return
}
cfgCopy := globalServerConfig.Clone()
var subSys string
switch idpCfgType {
case madmin.OpenidIDPCfg:
subSys = config.IdentityOpenIDSubSys
cfgInfos, err := globalIAMSys.OpenIDConfig.GetConfigInfo(cfgCopy, cfgName)
if err != nil {
if errors.Is(err, openid.ErrProviderConfigNotFound) {
writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrAdminNoSuchConfigTarget), r.URL)
return
}
writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
return
}
hasEnv := false
for _, ci := range cfgInfos {
if ci.IsCfg && ci.IsEnv {
hasEnv = true
break
}
}
if hasEnv {
writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrAdminConfigEnvOverridden), r.URL)
return
}
case madmin.LDAPIDPCfg:
subSys = config.IdentityLDAPSubSys
cfgInfos, err := globalIAMSys.LDAPConfig.GetConfigInfo(cfgCopy, cfgName)
if err != nil {
if errors.Is(err, openid.ErrProviderConfigNotFound) {
writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrAdminNoSuchConfigTarget), r.URL)
return
}
writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
return
}
hasEnv := false
for _, ci := range cfgInfos {
if ci.IsCfg && ci.IsEnv {
hasEnv = true
break
}
}
if hasEnv {
writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrAdminConfigEnvOverridden), r.URL)
return
}
default:
writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrNotImplemented), r.URL)
return
}
cfg, err := readServerConfig(ctx, objectAPI, nil)
if err != nil {
writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
return
}
cfgKey := fmt.Sprintf("%s:%s", subSys, cfgName)
if cfgName == madmin.Default {
cfgKey = subSys
}
if err = cfg.DelKVS(cfgKey); err != nil {
writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
return
}
if err = validateConfig(ctx, cfg, subSys); err != nil {
var validationErr ldap.Validation
if errors.As(err, &validationErr) {
// If we got an LDAP validation error, we need to send appropriate
// error message back to client (likely mc).
writeCustomErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrAdminConfigLDAPValidation),
validationErr.FormatError(), r.URL)
return
}
writeCustomErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrAdminConfigBadJSON), err.Error(), r.URL)
return
}
if err = saveServerConfig(ctx, objectAPI, cfg); err != nil {
writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
return
}
dynamic := config.SubSystemsDynamic.Contains(subSys)
if dynamic {
applyDynamic(ctx, objectAPI, cfg, subSys, r, w)
}
}