mirror of
https://github.com/yunionio/cloudpods.git
synced 2026-05-19 17:03:21 +08:00
120 lines
3.2 KiB
Go
120 lines
3.2 KiB
Go
// Copyright 2019 Yunion
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package s3auth
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import (
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"net/http"
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"strings"
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"yunion.io/x/jsonutils"
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"yunion.io/x/pkg/errors"
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)
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type IAccessKeySecretRequest interface {
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GetAccessKey() string
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Validate() error
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ParseRequest(req http.Request, virtualHost bool) error
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Verify(secret string) error
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Encode() string
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}
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type SAccessKeyRequest struct {
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Algorithm string `json:"algorithm,omitempty"`
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AccessKey string `json:"access_key,omitempty"`
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Signature string `json:"signature,omitempty"`
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Request string `json:"request,omitempty"`
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}
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func (aksk SAccessKeyRequest) GetAccessKey() string {
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return aksk.AccessKey
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}
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func (aksk SAccessKeyRequest) Validate() error {
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if len(aksk.AccessKey) == 0 {
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return errors.Error("Missing AWSAccessKeyId")
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}
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if len(aksk.Signature) == 0 {
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return errors.Error("Missing Signature")
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}
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return nil
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}
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func decodeAuthHeader(authHeader string) (IAccessKeySecretRequest, error) {
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pos := strings.IndexByte(authHeader, ' ')
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if pos <= 0 {
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return nil, errors.Error("illegal authorization header")
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}
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algo := authHeader[:pos]
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switch algo {
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case signV2Algorithm:
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req, err := decodeAuthHeaderV2(authHeader[pos+1:])
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if err != nil {
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return nil, errors.Wrap(err, "decodeAuthHeaderV2")
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}
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return req, nil
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case signV4Algorithm:
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req, err := decodeAuthHeaderV4(authHeader[pos+1:])
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if err != nil {
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return nil, errors.Wrap(err, "decodeAuthHeaderV4")
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}
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return req, nil
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default:
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return nil, errors.Error("unsupported signing algorithm")
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}
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}
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func DecodeAccessKeyRequest(req http.Request, virtualHost bool) (IAccessKeySecretRequest, error) {
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authHeader := req.Header.Get("Authorization")
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if len(authHeader) == 0 {
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return nil, errors.Error("missing authorization header")
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}
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akskReq, err := decodeAuthHeader(authHeader)
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if err != nil {
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return nil, errors.Wrap(err, "decodeAuthHeader")
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}
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err = akskReq.ParseRequest(req, virtualHost)
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if err != nil {
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return nil, errors.Wrap(err, "akskReq.ParseRequest")
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}
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return akskReq, akskReq.Validate()
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}
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func Decode(reqStr string) (IAccessKeySecretRequest, error) {
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rawReq := SAccessKeyRequest{}
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reqJson, err := jsonutils.ParseString(reqStr)
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if err != nil {
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return nil, errors.Wrap(err, "jsonutils.ParseString")
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}
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err = reqJson.Unmarshal(&rawReq)
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if err != nil {
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return nil, errors.Wrap(err, "reqJson.Unmarshal rawReq")
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}
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var ret IAccessKeySecretRequest
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switch rawReq.Algorithm {
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case signV2Algorithm:
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ret = &SAccessKeyRequestV2{}
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case signV4Algorithm:
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ret = &SAccessKeyRequestV4{}
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default:
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return nil, errors.Error("unsupported sign algorithm")
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}
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err = reqJson.Unmarshal(ret)
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if err != nil {
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return nil, errors.Wrap(err, "reqJson.Unmarshal")
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}
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return ret, nil
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}
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