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马谦马谦马谦 / alibaba-cloud-sdk-go

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rpc_signature_composer.go 2.94 KB
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/*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package auth
import (
"net/url"
"strings"
"github.com/aliyun/alibaba-cloud-sdk-go/sdk/requests"
"github.com/aliyun/alibaba-cloud-sdk-go/sdk/utils"
)
var hookGetUUIDV4 = func(fn func() string) string {
return fn()
}
func signRpcRequest(request requests.AcsRequest, signer Signer, regionId string) (err error) {
err = completeRpcSignParams(request, signer, regionId)
if err != nil {
return
}
// remove while retry
if _, containsSign := request.GetQueryParams()["Signature"]; containsSign {
delete(request.GetQueryParams(), "Signature")
}
stringToSign := buildRpcStringToSign(request)
request.SetStringToSign(stringToSign)
signature := signer.Sign(stringToSign, "&")
request.GetQueryParams()["Signature"] = signature
return
}
func completeRpcSignParams(request requests.AcsRequest, signer Signer, regionId string) (err error) {
queryParams := request.GetQueryParams()
queryParams["Version"] = request.GetVersion()
queryParams["Action"] = request.GetActionName()
queryParams["Format"] = request.GetAcceptFormat()
queryParams["Timestamp"] = hookGetDate(utils.GetTimeInFormatISO8601)
queryParams["SignatureMethod"] = signer.GetName()
queryParams["SignatureType"] = signer.GetType()
queryParams["SignatureVersion"] = signer.GetVersion()
queryParams["SignatureNonce"] = hookGetUUIDV4(utils.GetUUIDV4)
queryParams["AccessKeyId"], err = signer.GetAccessKeyId()
if err != nil {
return
}
if _, contains := queryParams["RegionId"]; !contains {
queryParams["RegionId"] = regionId
}
if extraParam := signer.GetExtraParam(); extraParam != nil {
for key, value := range extraParam {
queryParams[key] = value
}
}
request.GetHeaders()["Content-Type"] = requests.Form
formString := utils.GetUrlFormedMap(request.GetFormParams())
request.SetContent([]byte(formString))
return
}
func buildRpcStringToSign(request requests.AcsRequest) (stringToSign string) {
signParams := make(map[string]string)
for key, value := range request.GetQueryParams() {
signParams[key] = value
}
for key, value := range request.GetFormParams() {
signParams[key] = value
}
stringToSign = utils.GetUrlFormedMap(signParams)
stringToSign = strings.Replace(stringToSign, "+", "%20", -1)
stringToSign = strings.Replace(stringToSign, "*", "%2A", -1)
stringToSign = strings.Replace(stringToSign, "%7E", "~", -1)
stringToSign = url.QueryEscape(stringToSign)
stringToSign = request.GetMethod() + "&%2F&" + stringToSign
return
}

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