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258 lines
8.2 KiB
Go
258 lines
8.2 KiB
Go
// Copyright (c) 2015-2021 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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"context"
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"errors"
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"fmt"
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"net/http"
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"github.com/minio/kes-go"
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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/minio/internal/config"
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"github.com/minio/pkg/v2/policy"
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)
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// validateAdminReq will validate request against and return whether it is allowed.
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// If any of the supplied actions are allowed it will be successful.
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// If nil ObjectLayer is returned, the operation is not permitted.
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// When nil ObjectLayer has been returned an error has always been sent to w.
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func validateAdminReq(ctx context.Context, w http.ResponseWriter, r *http.Request, actions ...policy.AdminAction) (ObjectLayer, auth.Credentials) {
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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 nil, auth.Credentials{}
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}
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for _, action := range actions {
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// Validate request signature.
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cred, adminAPIErr := checkAdminRequestAuth(ctx, r, action, "")
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switch adminAPIErr {
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case ErrNone:
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return objectAPI, cred
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case ErrAccessDenied:
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// Try another
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continue
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default:
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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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}
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writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrAccessDenied), r.URL)
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return nil, auth.Credentials{}
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}
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// AdminError - is a generic error for all admin APIs.
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type AdminError struct {
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Code string
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Message string
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StatusCode int
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}
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func (ae AdminError) Error() string {
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return ae.Message
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}
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func toAdminAPIErr(ctx context.Context, err error) APIError {
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if err == nil {
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return noError
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}
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var apiErr APIError
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switch e := err.(type) {
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case policy.Error:
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apiErr = APIError{
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Code: "XMinioMalformedIAMPolicy",
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Description: e.Error(),
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HTTPStatusCode: http.StatusBadRequest,
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}
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case config.ErrConfigNotFound:
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apiErr = APIError{
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Code: "XMinioConfigNotFoundError",
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Description: e.Error(),
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HTTPStatusCode: http.StatusNotFound,
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}
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case config.ErrConfigGeneric:
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apiErr = APIError{
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Code: "XMinioConfigError",
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Description: e.Error(),
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HTTPStatusCode: http.StatusBadRequest,
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}
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case AdminError:
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apiErr = APIError{
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Code: e.Code,
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Description: e.Message,
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HTTPStatusCode: e.StatusCode,
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}
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case SRError:
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apiErr = errorCodes.ToAPIErrWithErr(e.Code, e.Cause)
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case decomError:
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apiErr = APIError{
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Code: "XMinioDecommissionNotAllowed",
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Description: e.Err,
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HTTPStatusCode: http.StatusBadRequest,
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}
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default:
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switch {
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case errors.Is(err, errTooManyPolicies):
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apiErr = APIError{
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Code: "XMinioAdminInvalidRequest",
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Description: err.Error(),
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HTTPStatusCode: http.StatusBadRequest,
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}
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case errors.Is(err, errDecommissionAlreadyRunning):
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apiErr = APIError{
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Code: "XMinioDecommissionNotAllowed",
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Description: err.Error(),
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HTTPStatusCode: http.StatusBadRequest,
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}
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case errors.Is(err, errDecommissionComplete):
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apiErr = APIError{
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Code: "XMinioDecommissionNotAllowed",
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Description: err.Error(),
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HTTPStatusCode: http.StatusBadRequest,
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}
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case errors.Is(err, errDecommissionRebalanceAlreadyRunning):
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apiErr = APIError{
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Code: "XMinioDecommissionNotAllowed",
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Description: err.Error(),
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HTTPStatusCode: http.StatusBadRequest,
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}
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case errors.Is(err, errRebalanceDecommissionAlreadyRunning):
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apiErr = APIError{
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Code: "XMinioRebalanceNotAllowed",
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Description: err.Error(),
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HTTPStatusCode: http.StatusBadRequest,
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}
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case errors.Is(err, errConfigNotFound):
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apiErr = APIError{
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Code: "XMinioConfigError",
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Description: err.Error(),
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HTTPStatusCode: http.StatusNotFound,
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}
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case errors.Is(err, errIAMActionNotAllowed):
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apiErr = APIError{
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Code: "XMinioIAMActionNotAllowed",
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Description: err.Error(),
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HTTPStatusCode: http.StatusForbidden,
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}
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case errors.Is(err, errIAMServiceAccountNotAllowed):
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apiErr = APIError{
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Code: "XMinioIAMServiceAccountNotAllowed",
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Description: err.Error(),
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HTTPStatusCode: http.StatusBadRequest,
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}
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case errors.Is(err, errIAMNotInitialized):
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apiErr = APIError{
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Code: "XMinioIAMNotInitialized",
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Description: err.Error(),
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HTTPStatusCode: http.StatusServiceUnavailable,
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}
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case errors.Is(err, errPolicyInUse):
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apiErr = APIError{
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Code: "XMinioIAMPolicyInUse",
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Description: "The policy cannot be removed, as it is in use",
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HTTPStatusCode: http.StatusBadRequest,
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}
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case errors.Is(err, errSessionPolicyTooLarge):
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apiErr = APIError{
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Code: "XMinioIAMServiceAccountSessionPolicyTooLarge",
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Description: err.Error(),
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HTTPStatusCode: http.StatusBadRequest,
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}
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case errors.Is(err, kes.ErrKeyExists):
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apiErr = APIError{
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Code: "XMinioKMSKeyExists",
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Description: err.Error(),
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HTTPStatusCode: http.StatusConflict,
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}
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// Tier admin API errors
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case errors.Is(err, madmin.ErrTierNameEmpty):
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apiErr = APIError{
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Code: "XMinioAdminTierNameEmpty",
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Description: err.Error(),
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HTTPStatusCode: http.StatusBadRequest,
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}
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case errors.Is(err, madmin.ErrTierInvalidConfig):
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apiErr = APIError{
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Code: "XMinioAdminTierInvalidConfig",
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Description: err.Error(),
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HTTPStatusCode: http.StatusBadRequest,
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}
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case errors.Is(err, madmin.ErrTierInvalidConfigVersion):
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apiErr = APIError{
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Code: "XMinioAdminTierInvalidConfigVersion",
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Description: err.Error(),
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HTTPStatusCode: http.StatusBadRequest,
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}
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case errors.Is(err, madmin.ErrTierTypeUnsupported):
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apiErr = APIError{
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Code: "XMinioAdminTierTypeUnsupported",
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Description: err.Error(),
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HTTPStatusCode: http.StatusBadRequest,
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}
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case errIsTierPermError(err):
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apiErr = APIError{
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Code: "XMinioAdminTierInsufficientPermissions",
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Description: err.Error(),
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HTTPStatusCode: http.StatusBadRequest,
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}
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default:
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apiErr = errorCodes.ToAPIErrWithErr(toAdminAPIErrCode(ctx, err), err)
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}
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}
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return apiErr
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}
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// toAdminAPIErrCode - converts errErasureWriteQuorum error to admin API
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// specific error.
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func toAdminAPIErrCode(ctx context.Context, err error) APIErrorCode {
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if errors.Is(err, errErasureWriteQuorum) {
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return ErrAdminConfigNoQuorum
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}
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return toAPIErrorCode(ctx, err)
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}
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// wraps export error for more context
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func exportError(ctx context.Context, err error, fname, entity string) APIError {
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if entity == "" {
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return toAPIError(ctx, fmt.Errorf("error exporting %s with: %w", fname, err))
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}
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return toAPIError(ctx, fmt.Errorf("error exporting %s from %s with: %w", entity, fname, err))
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}
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// wraps import error for more context
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func importError(ctx context.Context, err error, fname, entity string) APIError {
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if entity == "" {
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return toAPIError(ctx, fmt.Errorf("error importing %s with: %w", fname, err))
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}
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return toAPIError(ctx, fmt.Errorf("error importing %s from %s with: %w", entity, fname, err))
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}
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// wraps import error for more context
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func importErrorWithAPIErr(ctx context.Context, apiErr APIErrorCode, err error, fname, entity string) APIError {
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if entity == "" {
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return errorCodes.ToAPIErrWithErr(apiErr, fmt.Errorf("error importing %s with: %w", fname, err))
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}
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return errorCodes.ToAPIErrWithErr(apiErr, fmt.Errorf("error importing %s from %s with: %w", entity, fname, err))
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}
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