mirror of https://github.com/minio/minio.git
184 lines
5.9 KiB
Go
184 lines
5.9 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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"encoding/base64"
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"runtime"
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"strings"
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"github.com/minio/minio-go/v7/pkg/s3utils"
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"github.com/minio/minio/internal/logger"
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)
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// Checks on GetObject arguments, bucket and object.
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func checkGetObjArgs(ctx context.Context, bucket, object string) error {
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return checkBucketAndObjectNames(ctx, bucket, object)
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}
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// Checks on DeleteObject arguments, bucket and object.
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func checkDelObjArgs(ctx context.Context, bucket, object string) error {
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return checkBucketAndObjectNames(ctx, bucket, object)
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}
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// Checks bucket and object name validity, returns nil if both are valid.
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func checkBucketAndObjectNames(ctx context.Context, bucket, object string) error {
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// Verify if bucket is valid.
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if !isMinioMetaBucketName(bucket) && s3utils.CheckValidBucketNameStrict(bucket) != nil {
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return BucketNameInvalid{Bucket: bucket}
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}
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// Verify if object is valid.
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if len(object) == 0 {
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return ObjectNameInvalid{Bucket: bucket, Object: object}
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}
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if !IsValidObjectPrefix(object) {
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return ObjectNameInvalid{Bucket: bucket, Object: object}
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}
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if runtime.GOOS == globalWindowsOSName && strings.Contains(object, "\\") {
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// Objects cannot be contain \ in Windows and is listed as `Characters to Avoid`.
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return ObjectNameInvalid{Bucket: bucket, Object: object}
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}
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return nil
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}
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// Checks for all ListObjects arguments validity.
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func checkListObjsArgs(ctx context.Context, bucket, prefix, marker string) error {
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// Verify if bucket is valid.
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if !isMinioMetaBucketName(bucket) && s3utils.CheckValidBucketNameStrict(bucket) != nil {
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return BucketNameInvalid{Bucket: bucket}
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}
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// Validates object prefix validity after bucket exists.
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if !IsValidObjectPrefix(prefix) {
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logger.LogIf(ctx, ObjectNameInvalid{
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Bucket: bucket,
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Object: prefix,
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})
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return ObjectNameInvalid{
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Bucket: bucket,
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Object: prefix,
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}
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}
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return nil
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}
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// Checks for all ListMultipartUploads arguments validity.
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func checkListMultipartArgs(ctx context.Context, bucket, prefix, keyMarker, uploadIDMarker, delimiter string) error {
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if err := checkListObjsArgs(ctx, bucket, prefix, keyMarker); err != nil {
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return err
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}
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if uploadIDMarker != "" {
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if HasSuffix(keyMarker, SlashSeparator) {
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logger.LogIf(ctx, InvalidUploadIDKeyCombination{
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UploadIDMarker: uploadIDMarker,
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KeyMarker: keyMarker,
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})
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return InvalidUploadIDKeyCombination{
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UploadIDMarker: uploadIDMarker,
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KeyMarker: keyMarker,
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}
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}
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_, err := base64.RawURLEncoding.DecodeString(uploadIDMarker)
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if err != nil {
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logger.LogIf(ctx, err)
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return MalformedUploadID{
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UploadID: uploadIDMarker,
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}
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}
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}
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return nil
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}
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// Checks for NewMultipartUpload arguments validity, also validates if bucket exists.
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func checkNewMultipartArgs(ctx context.Context, bucket, object string, obj ObjectLayer) error {
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return checkObjectArgs(ctx, bucket, object, obj)
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}
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func checkMultipartObjectArgs(ctx context.Context, bucket, object, uploadID string, obj ObjectLayer) error {
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_, err := base64.RawURLEncoding.DecodeString(uploadID)
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if err != nil {
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return MalformedUploadID{
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UploadID: uploadID,
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}
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}
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return checkObjectArgs(ctx, bucket, object, obj)
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}
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// Checks for PutObjectPart arguments validity, also validates if bucket exists.
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func checkPutObjectPartArgs(ctx context.Context, bucket, object, uploadID string, obj ObjectLayer) error {
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return checkMultipartObjectArgs(ctx, bucket, object, uploadID, obj)
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}
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// Checks for ListParts arguments validity, also validates if bucket exists.
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func checkListPartsArgs(ctx context.Context, bucket, object, uploadID string, obj ObjectLayer) error {
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return checkMultipartObjectArgs(ctx, bucket, object, uploadID, obj)
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}
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// Checks for CompleteMultipartUpload arguments validity, also validates if bucket exists.
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func checkCompleteMultipartArgs(ctx context.Context, bucket, object, uploadID string, obj ObjectLayer) error {
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return checkMultipartObjectArgs(ctx, bucket, object, uploadID, obj)
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}
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// Checks for AbortMultipartUpload arguments validity, also validates if bucket exists.
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func checkAbortMultipartArgs(ctx context.Context, bucket, object, uploadID string, obj ObjectLayer) error {
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return checkMultipartObjectArgs(ctx, bucket, object, uploadID, obj)
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}
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// Checks Object arguments validity.
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func checkObjectArgs(ctx context.Context, bucket, object string, obj ObjectLayer) error {
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// Verify if bucket is valid.
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if !isMinioMetaBucketName(bucket) && s3utils.CheckValidBucketNameStrict(bucket) != nil {
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return BucketNameInvalid{Bucket: bucket}
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}
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if err := checkObjectNameForLengthAndSlash(bucket, object); err != nil {
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return err
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}
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// Validates object name validity after bucket exists.
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if !IsValidObjectName(object) {
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return ObjectNameInvalid{
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Bucket: bucket,
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Object: object,
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}
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}
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return nil
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}
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// Checks for PutObject arguments validity.
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func checkPutObjectArgs(ctx context.Context, bucket, object string) error {
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// Verify if bucket is valid.
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if !isMinioMetaBucketName(bucket) && s3utils.CheckValidBucketNameStrict(bucket) != nil {
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return BucketNameInvalid{Bucket: bucket}
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}
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if err := checkObjectNameForLengthAndSlash(bucket, object); err != nil {
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return err
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}
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if len(object) == 0 ||
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!IsValidObjectPrefix(object) {
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return ObjectNameInvalid{
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Bucket: bucket,
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Object: object,
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}
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}
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return nil
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}
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