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Copy pathadmin-handler-utils.go
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259 lines (245 loc) · 8.14 KB
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// Copyright (c) 2015-2021 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"
"errors"
"fmt"
"net/http"
"github.com/minio/kes"
"github.com/minio/madmin-go"
"github.com/minio/minio/internal/auth"
"github.com/minio/minio/internal/config"
iampolicy "github.com/minio/pkg/iam/policy"
)
// validateAdminReq will validate request against and return whether it is allowed.
// If any of the supplied actions are allowed it will be successful.
// If nil ObjectLayer is returned, the operation is not permitted.
// When nil ObjectLayer has been returned an error has always been sent to w.
func validateAdminReq(ctx context.Context, w http.ResponseWriter, r *http.Request, actions ...iampolicy.AdminAction) (ObjectLayer, auth.Credentials) {
// Get current object layer instance.
objectAPI := newObjectLayerFn()
if objectAPI == nil || globalNotificationSys == nil {
writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrServerNotInitialized), r.URL)
return nil, auth.Credentials{}
}
for _, action := range actions {
// Validate request signature.
cred, adminAPIErr := checkAdminRequestAuth(ctx, r, action, "")
switch adminAPIErr {
case ErrNone:
return objectAPI, cred
case ErrAccessDenied:
// Try another
continue
default:
writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(adminAPIErr), r.URL)
return nil, cred
}
}
writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrAccessDenied), r.URL)
return nil, auth.Credentials{}
}
// AdminError - is a generic error for all admin APIs.
type AdminError struct {
Code string
Message string
StatusCode int
}
func (ae AdminError) Error() string {
return ae.Message
}
func toAdminAPIErr(ctx context.Context, err error) APIError {
if err == nil {
return noError
}
var apiErr APIError
switch e := err.(type) {
case iampolicy.Error:
apiErr = APIError{
Code: "XMinioMalformedIAMPolicy",
Description: e.Error(),
HTTPStatusCode: http.StatusBadRequest,
}
case config.Error:
apiErr = APIError{
Code: "XMinioConfigError",
Description: e.Error(),
HTTPStatusCode: http.StatusBadRequest,
}
case AdminError:
apiErr = APIError{
Code: e.Code,
Description: e.Message,
HTTPStatusCode: e.StatusCode,
}
case SRError:
apiErr = errorCodes.ToAPIErrWithErr(e.Code, e.Cause)
case decomError:
apiErr = APIError{
Code: "XMinioDecommissionNotAllowed",
Description: e.Err,
HTTPStatusCode: http.StatusBadRequest,
}
default:
switch {
case errors.Is(err, errTooManyPolicies):
apiErr = APIError{
Code: "XMinioAdminInvalidRequest",
Description: err.Error(),
HTTPStatusCode: http.StatusBadRequest,
}
case errors.Is(err, errDecommissionAlreadyRunning):
apiErr = APIError{
Code: "XMinioDecommissionNotAllowed",
Description: err.Error(),
HTTPStatusCode: http.StatusBadRequest,
}
case errors.Is(err, errDecommissionComplete):
apiErr = APIError{
Code: "XMinioDecommissionNotAllowed",
Description: err.Error(),
HTTPStatusCode: http.StatusBadRequest,
}
case errors.Is(err, errConfigNotFound):
apiErr = APIError{
Code: "XMinioConfigError",
Description: err.Error(),
HTTPStatusCode: http.StatusNotFound,
}
case errors.Is(err, errIAMActionNotAllowed):
apiErr = APIError{
Code: "XMinioIAMActionNotAllowed",
Description: err.Error(),
HTTPStatusCode: http.StatusForbidden,
}
case errors.Is(err, errIAMServiceAccount):
apiErr = APIError{
Code: "XMinioIAMServiceAccount",
Description: err.Error(),
HTTPStatusCode: http.StatusBadRequest,
}
case errors.Is(err, errIAMServiceAccountUsed):
apiErr = APIError{
Code: "XMinioIAMServiceAccountUsed",
Description: err.Error(),
HTTPStatusCode: http.StatusBadRequest,
}
case errors.Is(err, errIAMNotInitialized):
apiErr = APIError{
Code: "XMinioIAMNotInitialized",
Description: err.Error(),
HTTPStatusCode: http.StatusServiceUnavailable,
}
case errors.Is(err, errPolicyInUse):
apiErr = APIError{
Code: "XMinioAdminPolicyInUse",
Description: "The policy cannot be removed, as it is in use",
HTTPStatusCode: http.StatusBadRequest,
}
case errors.Is(err, kes.ErrKeyExists):
apiErr = APIError{
Code: "XMinioKMSKeyExists",
Description: err.Error(),
HTTPStatusCode: http.StatusConflict,
}
// Tier admin API errors
case errors.Is(err, madmin.ErrTierNameEmpty):
apiErr = APIError{
Code: "XMinioAdminTierNameEmpty",
Description: err.Error(),
HTTPStatusCode: http.StatusBadRequest,
}
case errors.Is(err, madmin.ErrTierInvalidConfig):
apiErr = APIError{
Code: "XMinioAdminTierInvalidConfig",
Description: err.Error(),
HTTPStatusCode: http.StatusBadRequest,
}
case errors.Is(err, madmin.ErrTierInvalidConfigVersion):
apiErr = APIError{
Code: "XMinioAdminTierInvalidConfigVersion",
Description: err.Error(),
HTTPStatusCode: http.StatusBadRequest,
}
case errors.Is(err, madmin.ErrTierTypeUnsupported):
apiErr = APIError{
Code: "XMinioAdminTierTypeUnsupported",
Description: err.Error(),
HTTPStatusCode: http.StatusBadRequest,
}
case errors.Is(err, errTierBackendInUse):
apiErr = APIError{
Code: "XMinioAdminTierBackendInUse",
Description: err.Error(),
HTTPStatusCode: http.StatusBadRequest,
}
case errors.Is(err, errTierBackendNotEmpty):
apiErr = APIError{
Code: "XMinioAdminTierBackendNotEmpty",
Description: err.Error(),
HTTPStatusCode: http.StatusBadRequest,
}
case errors.Is(err, errTierInsufficientCreds):
apiErr = APIError{
Code: "XMinioAdminTierInsufficientCreds",
Description: err.Error(),
HTTPStatusCode: http.StatusBadRequest,
}
case errIsTierPermError(err):
apiErr = APIError{
Code: "XMinioAdminTierInsufficientPermissions",
Description: err.Error(),
HTTPStatusCode: http.StatusBadRequest,
}
default:
apiErr = errorCodes.ToAPIErrWithErr(toAdminAPIErrCode(ctx, err), err)
}
}
return apiErr
}
// toAdminAPIErrCode - converts errErasureWriteQuorum error to admin API
// specific error.
func toAdminAPIErrCode(ctx context.Context, err error) APIErrorCode {
switch err {
case errErasureWriteQuorum:
return ErrAdminConfigNoQuorum
default:
return toAPIErrorCode(ctx, err)
}
}
// wraps export error for more context
func exportError(ctx context.Context, err error, fname, entity string) APIError {
if entity == "" {
return toAPIError(ctx, fmt.Errorf("error exporting %s with: %w", fname, err))
}
return toAPIError(ctx, fmt.Errorf("error exporting %s from %s with: %w", entity, fname, err))
}
// wraps import error for more context
func importError(ctx context.Context, err error, fname, entity string) APIError {
if entity == "" {
return toAPIError(ctx, fmt.Errorf("error importing %s with: %w", fname, err))
}
return toAPIError(ctx, fmt.Errorf("error importing %s from %s with: %w", entity, fname, err))
}
// wraps import error for more context
func importErrorWithAPIErr(ctx context.Context, apiErr APIErrorCode, err error, fname, entity string) APIError {
if entity == "" {
return errorCodes.ToAPIErrWithErr(apiErr, fmt.Errorf("error importing %s with: %w", fname, err))
}
return errorCodes.ToAPIErrWithErr(apiErr, fmt.Errorf("error importing %s from %s with: %w", entity, fname, err))
}