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180 lines
5.6 KiB
Go
180 lines
5.6 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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"encoding/xml"
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"fmt"
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"io"
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"net/http"
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"github.com/gorilla/mux"
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"github.com/minio/minio/internal/logger"
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"github.com/minio/pkg/bucket/policy"
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)
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const (
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// Bucket Encryption configuration file name.
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bucketSSEConfig = "bucket-encryption.xml"
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)
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// PutBucketEncryptionHandler - Stores given bucket encryption configuration
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// https://docs.aws.amazon.com/AmazonS3/latest/API/API_PutBucketEncryption.html
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func (api objectAPIHandlers) PutBucketEncryptionHandler(w http.ResponseWriter, r *http.Request) {
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ctx := newContext(r, w, "PutBucketEncryption")
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defer logger.AuditLog(ctx, w, r, mustGetClaimsFromToken(r))
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objAPI := api.ObjectAPI()
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if objAPI == nil {
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writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrServerNotInitialized), r.URL, guessIsBrowserReq(r))
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return
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}
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if !objAPI.IsEncryptionSupported() {
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writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrNotImplemented), r.URL, guessIsBrowserReq(r))
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return
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}
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vars := mux.Vars(r)
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bucket := vars["bucket"]
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if s3Error := checkRequestAuthType(ctx, r, policy.PutBucketEncryptionAction, bucket, ""); s3Error != ErrNone {
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writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Error), r.URL, guessIsBrowserReq(r))
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return
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}
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// Check if bucket exists.
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if _, err := objAPI.GetBucketInfo(ctx, bucket); err != nil {
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writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
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return
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}
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// Parse bucket encryption xml
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encConfig, err := validateBucketSSEConfig(io.LimitReader(r.Body, maxBucketSSEConfigSize))
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if err != nil {
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apiErr := APIError{
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Code: "MalformedXML",
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Description: fmt.Sprintf("%s (%s)", errorCodes[ErrMalformedXML].Description, err),
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HTTPStatusCode: errorCodes[ErrMalformedXML].HTTPStatusCode,
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}
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writeErrorResponse(ctx, w, apiErr, r.URL, guessIsBrowserReq(r))
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return
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}
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// Return error if KMS is not initialized
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if GlobalKMS == nil {
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writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrKMSNotConfigured), r.URL, guessIsBrowserReq(r))
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return
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}
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configData, err := xml.Marshal(encConfig)
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if err != nil {
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writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
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return
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}
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// Store the bucket encryption configuration in the object layer
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if err = globalBucketMetadataSys.Update(bucket, bucketSSEConfig, configData); err != nil {
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writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
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return
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}
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writeSuccessResponseHeadersOnly(w)
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}
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// GetBucketEncryptionHandler - Returns bucket policy configuration
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// https://docs.aws.amazon.com/AmazonS3/latest/API/API_GetBucketEncryption.html
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func (api objectAPIHandlers) GetBucketEncryptionHandler(w http.ResponseWriter, r *http.Request) {
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ctx := newContext(r, w, "GetBucketEncryption")
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defer logger.AuditLog(ctx, w, r, mustGetClaimsFromToken(r))
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objAPI := api.ObjectAPI()
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if objAPI == nil {
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writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrServerNotInitialized), r.URL, guessIsBrowserReq(r))
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return
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}
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vars := mux.Vars(r)
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bucket := vars["bucket"]
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if s3Error := checkRequestAuthType(ctx, r, policy.GetBucketEncryptionAction, bucket, ""); s3Error != ErrNone {
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writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Error), r.URL, guessIsBrowserReq(r))
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return
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}
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// Check if bucket exists
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var err error
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if _, err = objAPI.GetBucketInfo(ctx, bucket); err != nil {
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writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
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return
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}
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config, err := globalBucketMetadataSys.GetSSEConfig(bucket)
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if err != nil {
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writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
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return
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}
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configData, err := xml.Marshal(config)
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if err != nil {
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writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
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return
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}
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// Write bucket encryption configuration to client
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writeSuccessResponseXML(w, configData)
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}
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// DeleteBucketEncryptionHandler - Removes bucket encryption configuration
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func (api objectAPIHandlers) DeleteBucketEncryptionHandler(w http.ResponseWriter, r *http.Request) {
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ctx := newContext(r, w, "DeleteBucketEncryption")
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defer logger.AuditLog(ctx, w, r, mustGetClaimsFromToken(r))
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objAPI := api.ObjectAPI()
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if objAPI == nil {
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writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrServerNotInitialized), r.URL, guessIsBrowserReq(r))
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return
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}
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vars := mux.Vars(r)
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bucket := vars["bucket"]
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if s3Error := checkRequestAuthType(ctx, r, policy.PutBucketEncryptionAction, bucket, ""); s3Error != ErrNone {
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writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Error), r.URL, guessIsBrowserReq(r))
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return
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}
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// Check if bucket exists
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var err error
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if _, err = objAPI.GetBucketInfo(ctx, bucket); err != nil {
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writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
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return
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}
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// Delete bucket encryption config from object layer
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if err = globalBucketMetadataSys.Update(bucket, bucketSSEConfig, nil); err != nil {
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writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL, guessIsBrowserReq(r))
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return
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}
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writeSuccessNoContent(w)
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}
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