mirror of
https://github.com/minio/minio.git
synced 2024-12-24 22:25:54 -05:00
681 lines
22 KiB
Go
681 lines
22 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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"bytes"
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"context"
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"crypto/subtle"
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"encoding/base64"
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"encoding/hex"
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"errors"
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"io"
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"io/ioutil"
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"net/http"
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"strconv"
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"strings"
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"sync/atomic"
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"time"
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xhttp "github.com/minio/minio/cmd/http"
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xjwt "github.com/minio/minio/cmd/jwt"
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"github.com/minio/minio/cmd/logger"
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"github.com/minio/minio/pkg/auth"
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objectlock "github.com/minio/minio/pkg/bucket/object/lock"
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"github.com/minio/minio/pkg/etag"
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"github.com/minio/minio/pkg/hash"
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"github.com/minio/pkg/bucket/policy"
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iampolicy "github.com/minio/pkg/iam/policy"
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)
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// Verify if request has JWT.
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func isRequestJWT(r *http.Request) bool {
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return strings.HasPrefix(r.Header.Get(xhttp.Authorization), jwtAlgorithm)
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}
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// Verify if request has AWS Signature Version '4'.
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func isRequestSignatureV4(r *http.Request) bool {
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return strings.HasPrefix(r.Header.Get(xhttp.Authorization), signV4Algorithm)
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}
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// Verify if request has AWS Signature Version '2'.
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func isRequestSignatureV2(r *http.Request) bool {
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return (!strings.HasPrefix(r.Header.Get(xhttp.Authorization), signV4Algorithm) &&
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strings.HasPrefix(r.Header.Get(xhttp.Authorization), signV2Algorithm))
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}
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// Verify if request has AWS PreSign Version '4'.
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func isRequestPresignedSignatureV4(r *http.Request) bool {
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_, ok := r.URL.Query()[xhttp.AmzCredential]
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return ok
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}
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// Verify request has AWS PreSign Version '2'.
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func isRequestPresignedSignatureV2(r *http.Request) bool {
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_, ok := r.URL.Query()[xhttp.AmzAccessKeyID]
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return ok
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}
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// Verify if request has AWS Post policy Signature Version '4'.
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func isRequestPostPolicySignatureV4(r *http.Request) bool {
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return strings.Contains(r.Header.Get(xhttp.ContentType), "multipart/form-data") &&
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r.Method == http.MethodPost
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}
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// Verify if the request has AWS Streaming Signature Version '4'. This is only valid for 'PUT' operation.
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func isRequestSignStreamingV4(r *http.Request) bool {
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return r.Header.Get(xhttp.AmzContentSha256) == streamingContentSHA256 &&
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r.Method == http.MethodPut
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}
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// Authorization type.
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type authType int
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// List of all supported auth types.
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const (
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authTypeUnknown authType = iota
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authTypeAnonymous
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authTypePresigned
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authTypePresignedV2
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authTypePostPolicy
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authTypeStreamingSigned
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authTypeSigned
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authTypeSignedV2
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authTypeJWT
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authTypeSTS
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)
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// Get request authentication type.
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func getRequestAuthType(r *http.Request) authType {
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if isRequestSignatureV2(r) {
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return authTypeSignedV2
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} else if isRequestPresignedSignatureV2(r) {
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return authTypePresignedV2
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} else if isRequestSignStreamingV4(r) {
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return authTypeStreamingSigned
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} else if isRequestSignatureV4(r) {
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return authTypeSigned
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} else if isRequestPresignedSignatureV4(r) {
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return authTypePresigned
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} else if isRequestJWT(r) {
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return authTypeJWT
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} else if isRequestPostPolicySignatureV4(r) {
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return authTypePostPolicy
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} else if _, ok := r.URL.Query()[xhttp.Action]; ok {
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return authTypeSTS
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} else if _, ok := r.Header[xhttp.Authorization]; !ok {
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return authTypeAnonymous
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}
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return authTypeUnknown
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}
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func validateAdminSignature(ctx context.Context, r *http.Request, region string) (auth.Credentials, map[string]interface{}, bool, APIErrorCode) {
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var cred auth.Credentials
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var owner bool
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s3Err := ErrAccessDenied
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if _, ok := r.Header[xhttp.AmzContentSha256]; ok &&
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getRequestAuthType(r) == authTypeSigned && !skipContentSha256Cksum(r) {
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// We only support admin credentials to access admin APIs.
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cred, owner, s3Err = getReqAccessKeyV4(r, region, serviceS3)
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if s3Err != ErrNone {
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return cred, nil, owner, s3Err
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}
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// we only support V4 (no presign) with auth body
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s3Err = isReqAuthenticated(ctx, r, region, serviceS3)
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}
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if s3Err != ErrNone {
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reqInfo := (&logger.ReqInfo{}).AppendTags("requestHeaders", dumpRequest(r))
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ctx := logger.SetReqInfo(ctx, reqInfo)
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logger.LogIf(ctx, errors.New(getAPIError(s3Err).Description), logger.Application)
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return cred, nil, owner, s3Err
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}
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claims, s3Err := checkClaimsFromToken(r, cred)
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if s3Err != ErrNone {
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return cred, nil, owner, s3Err
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}
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return cred, claims, owner, ErrNone
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}
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// checkAdminRequestAuth checks for authentication and authorization for the incoming
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// request. It only accepts V2 and V4 requests. Presigned, JWT and anonymous requests
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// are automatically rejected.
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func checkAdminRequestAuth(ctx context.Context, r *http.Request, action iampolicy.AdminAction, region string) (auth.Credentials, APIErrorCode) {
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cred, claims, owner, s3Err := validateAdminSignature(ctx, r, region)
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if s3Err != ErrNone {
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return cred, s3Err
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}
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if globalIAMSys.IsAllowed(iampolicy.Args{
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AccountName: cred.AccessKey,
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Groups: cred.Groups,
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Action: iampolicy.Action(action),
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ConditionValues: getConditionValues(r, "", cred.AccessKey, claims),
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IsOwner: owner,
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Claims: claims,
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}) {
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// Request is allowed return the appropriate access key.
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return cred, ErrNone
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}
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return cred, ErrAccessDenied
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}
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// Fetch the security token set by the client.
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func getSessionToken(r *http.Request) (token string) {
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token = r.Header.Get(xhttp.AmzSecurityToken)
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if token != "" {
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return token
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}
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return r.URL.Query().Get(xhttp.AmzSecurityToken)
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}
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// Fetch claims in the security token returned by the client, doesn't return
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// errors - upon errors the returned claims map will be empty.
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func mustGetClaimsFromToken(r *http.Request) map[string]interface{} {
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claims, _ := getClaimsFromToken(getSessionToken(r))
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return claims
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}
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// Fetch claims in the security token returned by the client.
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func getClaimsFromToken(token string) (map[string]interface{}, error) {
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if token == "" {
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claims := xjwt.NewMapClaims()
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return claims.Map(), nil
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}
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// JWT token for x-amz-security-token is signed with admin
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// secret key, temporary credentials become invalid if
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// server admin credentials change. This is done to ensure
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// that clients cannot decode the token using the temp
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// secret keys and generate an entirely new claim by essentially
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// hijacking the policies. We need to make sure that this is
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// based an admin credential such that token cannot be decoded
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// on the client side and is treated like an opaque value.
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claims, err := auth.ExtractClaims(token, globalActiveCred.SecretKey)
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if err != nil {
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return nil, errAuthentication
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}
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if globalPolicyOPA == nil {
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// If OPA is not set and if ldap claim key is set, allow the claim.
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if _, ok := claims.MapClaims[ldapUser]; ok {
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return claims.Map(), nil
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}
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// If OPA is not set, session token should
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// have a policy and its mandatory, reject
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// requests without policy claim.
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_, pokOpenID := claims.MapClaims[iamPolicyClaimNameOpenID()]
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_, pokSA := claims.MapClaims[iamPolicyClaimNameSA()]
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if !pokOpenID && !pokSA {
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return nil, errAuthentication
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}
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sp, spok := claims.Lookup(iampolicy.SessionPolicyName)
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if !spok {
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return claims.Map(), nil
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}
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// Looks like subpolicy is set and is a string, if set then its
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// base64 encoded, decode it. Decoding fails reject such requests.
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spBytes, err := base64.StdEncoding.DecodeString(sp)
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if err != nil {
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// Base64 decoding fails, we should log to indicate
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// something is malforming the request sent by client.
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logger.LogIf(GlobalContext, err, logger.Application)
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return nil, errAuthentication
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}
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claims.MapClaims[iampolicy.SessionPolicyName] = string(spBytes)
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}
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return claims.Map(), nil
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}
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// Fetch claims in the security token returned by the client and validate the token.
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func checkClaimsFromToken(r *http.Request, cred auth.Credentials) (map[string]interface{}, APIErrorCode) {
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token := getSessionToken(r)
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if token != "" && cred.AccessKey == "" {
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return nil, ErrNoAccessKey
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}
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if cred.IsServiceAccount() && token == "" {
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token = cred.SessionToken
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}
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if subtle.ConstantTimeCompare([]byte(token), []byte(cred.SessionToken)) != 1 {
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return nil, ErrInvalidToken
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}
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claims, err := getClaimsFromToken(token)
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if err != nil {
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return nil, toAPIErrorCode(r.Context(), err)
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}
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return claims, ErrNone
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}
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// Check request auth type verifies the incoming http request
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// - validates the request signature
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// - validates the policy action if anonymous tests bucket policies if any,
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// for authenticated requests validates IAM policies.
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// returns APIErrorCode if any to be replied to the client.
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func checkRequestAuthType(ctx context.Context, r *http.Request, action policy.Action, bucketName, objectName string) (s3Err APIErrorCode) {
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_, _, s3Err = checkRequestAuthTypeCredential(ctx, r, action, bucketName, objectName)
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return s3Err
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}
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// Check request auth type verifies the incoming http request
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// - validates the request signature
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// - validates the policy action if anonymous tests bucket policies if any,
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// for authenticated requests validates IAM policies.
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// returns APIErrorCode if any to be replied to the client.
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// Additionally returns the accessKey used in the request, and if this request is by an admin.
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func checkRequestAuthTypeCredential(ctx context.Context, r *http.Request, action policy.Action, bucketName, objectName string) (cred auth.Credentials, owner bool, s3Err APIErrorCode) {
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switch getRequestAuthType(r) {
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case authTypeUnknown, authTypeStreamingSigned:
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return cred, owner, ErrSignatureVersionNotSupported
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case authTypePresignedV2, authTypeSignedV2:
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if s3Err = isReqAuthenticatedV2(r); s3Err != ErrNone {
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return cred, owner, s3Err
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}
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cred, owner, s3Err = getReqAccessKeyV2(r)
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case authTypeSigned, authTypePresigned:
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region := globalServerRegion
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switch action {
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case policy.GetBucketLocationAction, policy.ListAllMyBucketsAction:
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region = ""
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}
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if s3Err = isReqAuthenticated(ctx, r, region, serviceS3); s3Err != ErrNone {
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return cred, owner, s3Err
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}
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cred, owner, s3Err = getReqAccessKeyV4(r, region, serviceS3)
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}
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if s3Err != ErrNone {
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return cred, owner, s3Err
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}
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var claims map[string]interface{}
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claims, s3Err = checkClaimsFromToken(r, cred)
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if s3Err != ErrNone {
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return cred, owner, s3Err
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}
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// LocationConstraint is valid only for CreateBucketAction.
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var locationConstraint string
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if action == policy.CreateBucketAction {
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// To extract region from XML in request body, get copy of request body.
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payload, err := ioutil.ReadAll(io.LimitReader(r.Body, maxLocationConstraintSize))
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if err != nil {
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logger.LogIf(ctx, err, logger.Application)
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return cred, owner, ErrMalformedXML
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}
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// Populate payload to extract location constraint.
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r.Body = ioutil.NopCloser(bytes.NewReader(payload))
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var s3Error APIErrorCode
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locationConstraint, s3Error = parseLocationConstraint(r)
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if s3Error != ErrNone {
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return cred, owner, s3Error
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}
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// Populate payload again to handle it in HTTP handler.
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r.Body = ioutil.NopCloser(bytes.NewReader(payload))
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}
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if cred.AccessKey != "" {
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logger.GetReqInfo(ctx).AccessKey = cred.AccessKey
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}
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if action != policy.ListAllMyBucketsAction && cred.AccessKey == "" {
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// Anonymous checks are not meant for ListBuckets action
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if globalPolicySys.IsAllowed(policy.Args{
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AccountName: cred.AccessKey,
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Action: action,
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BucketName: bucketName,
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ConditionValues: getConditionValues(r, locationConstraint, "", nil),
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IsOwner: false,
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ObjectName: objectName,
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}) {
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// Request is allowed return the appropriate access key.
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return cred, owner, ErrNone
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}
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if action == policy.ListBucketVersionsAction {
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// In AWS S3 s3:ListBucket permission is same as s3:ListBucketVersions permission
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// verify as a fallback.
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if globalPolicySys.IsAllowed(policy.Args{
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AccountName: cred.AccessKey,
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Action: policy.ListBucketAction,
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BucketName: bucketName,
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ConditionValues: getConditionValues(r, locationConstraint, "", nil),
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IsOwner: false,
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ObjectName: objectName,
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}) {
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// Request is allowed return the appropriate access key.
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return cred, owner, ErrNone
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}
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}
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return cred, owner, ErrAccessDenied
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}
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if globalIAMSys.IsAllowed(iampolicy.Args{
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AccountName: cred.AccessKey,
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Groups: cred.Groups,
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Action: iampolicy.Action(action),
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BucketName: bucketName,
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ConditionValues: getConditionValues(r, "", cred.AccessKey, claims),
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ObjectName: objectName,
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IsOwner: owner,
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Claims: claims,
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}) {
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// Request is allowed return the appropriate access key.
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return cred, owner, ErrNone
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}
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if action == policy.ListBucketVersionsAction {
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// In AWS S3 s3:ListBucket permission is same as s3:ListBucketVersions permission
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// verify as a fallback.
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if globalIAMSys.IsAllowed(iampolicy.Args{
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AccountName: cred.AccessKey,
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Groups: cred.Groups,
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Action: iampolicy.ListBucketAction,
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BucketName: bucketName,
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ConditionValues: getConditionValues(r, "", cred.AccessKey, claims),
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ObjectName: objectName,
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IsOwner: owner,
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Claims: claims,
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}) {
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// Request is allowed return the appropriate access key.
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return cred, owner, ErrNone
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}
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}
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return cred, owner, ErrAccessDenied
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}
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// Verify if request has valid AWS Signature Version '2'.
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func isReqAuthenticatedV2(r *http.Request) (s3Error APIErrorCode) {
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if isRequestSignatureV2(r) {
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return doesSignV2Match(r)
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}
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return doesPresignV2SignatureMatch(r)
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}
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func reqSignatureV4Verify(r *http.Request, region string, stype serviceType) (s3Error APIErrorCode) {
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sha256sum := getContentSha256Cksum(r, stype)
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switch {
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case isRequestSignatureV4(r):
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return doesSignatureMatch(sha256sum, r, region, stype)
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case isRequestPresignedSignatureV4(r):
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return doesPresignedSignatureMatch(sha256sum, r, region, stype)
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default:
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return ErrAccessDenied
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}
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}
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// Verify if request has valid AWS Signature Version '4'.
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func isReqAuthenticated(ctx context.Context, r *http.Request, region string, stype serviceType) (s3Error APIErrorCode) {
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if errCode := reqSignatureV4Verify(r, region, stype); errCode != ErrNone {
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return errCode
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}
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clientETag, err := etag.FromContentMD5(r.Header)
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if err != nil {
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return ErrInvalidDigest
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}
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// Extract either 'X-Amz-Content-Sha256' header or 'X-Amz-Content-Sha256' query parameter (if V4 presigned)
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// Do not verify 'X-Amz-Content-Sha256' if skipSHA256.
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var contentSHA256 []byte
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if skipSHA256 := skipContentSha256Cksum(r); !skipSHA256 && isRequestPresignedSignatureV4(r) {
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if sha256Sum, ok := r.URL.Query()[xhttp.AmzContentSha256]; ok && len(sha256Sum) > 0 {
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contentSHA256, err = hex.DecodeString(sha256Sum[0])
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if err != nil {
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return ErrContentSHA256Mismatch
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}
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}
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} else if _, ok := r.Header[xhttp.AmzContentSha256]; !skipSHA256 && ok {
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contentSHA256, err = hex.DecodeString(r.Header.Get(xhttp.AmzContentSha256))
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if err != nil || len(contentSHA256) == 0 {
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return ErrContentSHA256Mismatch
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}
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}
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// Verify 'Content-Md5' and/or 'X-Amz-Content-Sha256' if present.
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// The verification happens implicit during reading.
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reader, err := hash.NewReader(r.Body, -1, clientETag.String(), hex.EncodeToString(contentSHA256), -1)
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if err != nil {
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return toAPIErrorCode(ctx, err)
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}
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r.Body = reader
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return ErrNone
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}
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// List of all support S3 auth types.
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var supportedS3AuthTypes = map[authType]struct{}{
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authTypeAnonymous: {},
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authTypePresigned: {},
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authTypePresignedV2: {},
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authTypeSigned: {},
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authTypeSignedV2: {},
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authTypePostPolicy: {},
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authTypeStreamingSigned: {},
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}
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// Validate if the authType is valid and supported.
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func isSupportedS3AuthType(aType authType) bool {
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_, ok := supportedS3AuthTypes[aType]
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return ok
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}
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// setAuthHandler to validate authorization header for the incoming request.
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func setAuthHandler(h http.Handler) http.Handler {
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// handler for validating incoming authorization headers.
|
|
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
|
|
aType := getRequestAuthType(r)
|
|
if isSupportedS3AuthType(aType) {
|
|
// Let top level caller validate for anonymous and known signed requests.
|
|
h.ServeHTTP(w, r)
|
|
return
|
|
} else if aType == authTypeJWT {
|
|
// Validate Authorization header if its valid for JWT request.
|
|
if _, _, authErr := webRequestAuthenticate(r); authErr != nil {
|
|
w.WriteHeader(http.StatusUnauthorized)
|
|
w.Write([]byte(authErr.Error()))
|
|
return
|
|
}
|
|
h.ServeHTTP(w, r)
|
|
return
|
|
} else if aType == authTypeSTS {
|
|
h.ServeHTTP(w, r)
|
|
return
|
|
}
|
|
writeErrorResponse(r.Context(), w, errorCodes.ToAPIErr(ErrSignatureVersionNotSupported), r.URL, guessIsBrowserReq(r))
|
|
atomic.AddUint64(&globalHTTPStats.rejectedRequestsAuth, 1)
|
|
})
|
|
}
|
|
|
|
func validateSignature(atype authType, r *http.Request) (auth.Credentials, bool, map[string]interface{}, APIErrorCode) {
|
|
var cred auth.Credentials
|
|
var owner bool
|
|
var s3Err APIErrorCode
|
|
switch atype {
|
|
case authTypeUnknown, authTypeStreamingSigned:
|
|
return cred, owner, nil, ErrSignatureVersionNotSupported
|
|
case authTypeSignedV2, authTypePresignedV2:
|
|
if s3Err = isReqAuthenticatedV2(r); s3Err != ErrNone {
|
|
return cred, owner, nil, s3Err
|
|
}
|
|
cred, owner, s3Err = getReqAccessKeyV2(r)
|
|
case authTypePresigned, authTypeSigned:
|
|
region := globalServerRegion
|
|
if s3Err = isReqAuthenticated(GlobalContext, r, region, serviceS3); s3Err != ErrNone {
|
|
return cred, owner, nil, s3Err
|
|
}
|
|
cred, owner, s3Err = getReqAccessKeyV4(r, region, serviceS3)
|
|
}
|
|
if s3Err != ErrNone {
|
|
return cred, owner, nil, s3Err
|
|
}
|
|
|
|
claims, s3Err := checkClaimsFromToken(r, cred)
|
|
if s3Err != ErrNone {
|
|
return cred, owner, nil, s3Err
|
|
}
|
|
|
|
return cred, owner, claims, ErrNone
|
|
}
|
|
|
|
func isPutRetentionAllowed(bucketName, objectName string, retDays int, retDate time.Time, retMode objectlock.RetMode, byPassSet bool, r *http.Request, cred auth.Credentials, owner bool, claims map[string]interface{}) (s3Err APIErrorCode) {
|
|
var retSet bool
|
|
if cred.AccessKey == "" {
|
|
conditions := getConditionValues(r, "", "", nil)
|
|
conditions["object-lock-mode"] = []string{string(retMode)}
|
|
conditions["object-lock-retain-until-date"] = []string{retDate.Format(time.RFC3339)}
|
|
if retDays > 0 {
|
|
conditions["object-lock-remaining-retention-days"] = []string{strconv.Itoa(retDays)}
|
|
}
|
|
if retMode == objectlock.RetGovernance && byPassSet {
|
|
byPassSet = globalPolicySys.IsAllowed(policy.Args{
|
|
AccountName: cred.AccessKey,
|
|
Groups: cred.Groups,
|
|
Action: policy.BypassGovernanceRetentionAction,
|
|
BucketName: bucketName,
|
|
ConditionValues: conditions,
|
|
IsOwner: false,
|
|
ObjectName: objectName,
|
|
})
|
|
}
|
|
if globalPolicySys.IsAllowed(policy.Args{
|
|
AccountName: cred.AccessKey,
|
|
Groups: cred.Groups,
|
|
Action: policy.PutObjectRetentionAction,
|
|
BucketName: bucketName,
|
|
ConditionValues: conditions,
|
|
IsOwner: false,
|
|
ObjectName: objectName,
|
|
}) {
|
|
retSet = true
|
|
}
|
|
if byPassSet || retSet {
|
|
return ErrNone
|
|
}
|
|
return ErrAccessDenied
|
|
}
|
|
|
|
conditions := getConditionValues(r, "", cred.AccessKey, claims)
|
|
conditions["object-lock-mode"] = []string{string(retMode)}
|
|
conditions["object-lock-retain-until-date"] = []string{retDate.Format(time.RFC3339)}
|
|
if retDays > 0 {
|
|
conditions["object-lock-remaining-retention-days"] = []string{strconv.Itoa(retDays)}
|
|
}
|
|
if retMode == objectlock.RetGovernance && byPassSet {
|
|
byPassSet = globalIAMSys.IsAllowed(iampolicy.Args{
|
|
AccountName: cred.AccessKey,
|
|
Groups: cred.Groups,
|
|
Action: iampolicy.BypassGovernanceRetentionAction,
|
|
BucketName: bucketName,
|
|
ObjectName: objectName,
|
|
ConditionValues: conditions,
|
|
IsOwner: owner,
|
|
Claims: claims,
|
|
})
|
|
}
|
|
if globalIAMSys.IsAllowed(iampolicy.Args{
|
|
AccountName: cred.AccessKey,
|
|
Groups: cred.Groups,
|
|
Action: iampolicy.PutObjectRetentionAction,
|
|
BucketName: bucketName,
|
|
ConditionValues: conditions,
|
|
ObjectName: objectName,
|
|
IsOwner: owner,
|
|
Claims: claims,
|
|
}) {
|
|
retSet = true
|
|
}
|
|
if byPassSet || retSet {
|
|
return ErrNone
|
|
}
|
|
return ErrAccessDenied
|
|
}
|
|
|
|
// isPutActionAllowed - check if PUT operation is allowed on the resource, this
|
|
// call verifies bucket policies and IAM policies, supports multi user
|
|
// checks etc.
|
|
func isPutActionAllowed(ctx context.Context, atype authType, bucketName, objectName string, r *http.Request, action iampolicy.Action) (s3Err APIErrorCode) {
|
|
var cred auth.Credentials
|
|
var owner bool
|
|
switch atype {
|
|
case authTypeUnknown:
|
|
return ErrSignatureVersionNotSupported
|
|
case authTypeSignedV2, authTypePresignedV2:
|
|
cred, owner, s3Err = getReqAccessKeyV2(r)
|
|
case authTypeStreamingSigned, authTypePresigned, authTypeSigned:
|
|
region := globalServerRegion
|
|
cred, owner, s3Err = getReqAccessKeyV4(r, region, serviceS3)
|
|
}
|
|
if s3Err != ErrNone {
|
|
return s3Err
|
|
}
|
|
|
|
claims, s3Err := checkClaimsFromToken(r, cred)
|
|
if s3Err != ErrNone {
|
|
return s3Err
|
|
}
|
|
|
|
if cred.AccessKey != "" {
|
|
logger.GetReqInfo(ctx).AccessKey = cred.AccessKey
|
|
}
|
|
|
|
// Do not check for PutObjectRetentionAction permission,
|
|
// if mode and retain until date are not set.
|
|
// Can happen when bucket has default lock config set
|
|
if action == iampolicy.PutObjectRetentionAction &&
|
|
r.Header.Get(xhttp.AmzObjectLockMode) == "" &&
|
|
r.Header.Get(xhttp.AmzObjectLockRetainUntilDate) == "" {
|
|
return ErrNone
|
|
}
|
|
|
|
if cred.AccessKey == "" {
|
|
if globalPolicySys.IsAllowed(policy.Args{
|
|
AccountName: cred.AccessKey,
|
|
Groups: cred.Groups,
|
|
Action: policy.Action(action),
|
|
BucketName: bucketName,
|
|
ConditionValues: getConditionValues(r, "", "", nil),
|
|
IsOwner: false,
|
|
ObjectName: objectName,
|
|
}) {
|
|
return ErrNone
|
|
}
|
|
return ErrAccessDenied
|
|
}
|
|
|
|
if globalIAMSys.IsAllowed(iampolicy.Args{
|
|
AccountName: cred.AccessKey,
|
|
Groups: cred.Groups,
|
|
Action: action,
|
|
BucketName: bucketName,
|
|
ConditionValues: getConditionValues(r, "", cred.AccessKey, claims),
|
|
ObjectName: objectName,
|
|
IsOwner: owner,
|
|
Claims: claims,
|
|
}) {
|
|
return ErrNone
|
|
}
|
|
return ErrAccessDenied
|
|
}
|