/
JdcloudClient.go
120 lines (99 loc) · 3.38 KB
/
JdcloudClient.go
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// Copyright 2018-2025 JDCLOUD.COM
//
// 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 core
import (
"net/http"
"strings"
"time"
"fmt"
"encoding/json"
"encoding/base64"
)
// JDCloudClient is the base struct of service clients
type JDCloudClient struct {
Credential Credential
Config Config
ServiceName string
Revision string
Logger Logger
}
type SignFunc func(*http.Request) error
// Send send the request and return the response to the client.
// Parameter request accepts concrete request object which follow RequestInterface.
func (c JDCloudClient) Send(request RequestInterface, serviceName string) ([]byte, error) {
method := request.GetMethod()
builder := GetParameterBuilder(method, c.Logger)
jsonReq, _ := json.Marshal(request)
encodedUrl, err := builder.BuildURL(request.GetURL(), jsonReq)
if err != nil {
return nil, err
}
reqUrl := fmt.Sprintf("%s://%s/%s%s", c.Config.Scheme, c.Config.Endpoint, request.GetVersion(), encodedUrl)
body, err := builder.BuildBody(jsonReq)
if err != nil {
return nil, err
}
sign := func(r *http.Request) error {
regionId := request.GetRegionId()
// some request has no region parameter, so give a value to it,
// then API gateway can calculate sign successfully.
if regionId == "" {
regionId = "jdcloud-api"
}
signer := NewSigner(c.Credential, c.Logger)
_, err := signer.Sign(r, strings.NewReader(body), serviceName, regionId, time.Now())
return err
}
return c.doSend(method, reqUrl, body, request.GetHeaders(), c.Config.Timeout, sign)
}
func (c JDCloudClient) doSend(method, url, data string, header map[string]string, timeout time.Duration, sign SignFunc) ([]byte, error) {
client := &http.Client{Timeout: timeout}
req, err := http.NewRequest(method, url, strings.NewReader(data))
if err != nil {
c.Logger.Log(LogFatal, err.Error())
return nil, err
}
c.setHeader(req, header)
err = sign(req)
if err != nil {
return nil, err
}
resp, err := client.Do(req)
if err != nil {
c.Logger.Log(LogError, err.Error())
return nil, err
}
processor := GetResponseProcessor(req.Method)
result, err := processor.Process(resp)
if err != nil {
c.Logger.Log(LogError, err.Error())
return nil, err
}
return result, nil
}
func (c JDCloudClient) setHeader(req *http.Request, header map[string]string) {
req.Header.Set("Content-Type", "application/json")
req.Header.Set("User-Agent", fmt.Sprintf("JdcloudSdkGo/%s %s/%s", Version, c.ServiceName, c.Revision))
base64Headers := []string{HeaderJdcloudPrefix + "-pin", HeaderJdcloudPrefix + "-erp", HeaderJdcloudPrefix + "-security-token",
HeaderJcloudPrefix + "-pin", HeaderJcloudPrefix + "-erp", HeaderJcloudPrefix + "-security-token"}
for k, v := range header {
if includes(base64Headers, strings.ToLower(k)) {
v = base64.StdEncoding.EncodeToString([]byte(v))
}
req.Header.Set(k, v)
}
for k, v := range req.Header {
c.Logger.Log(LogInfo, k, v)
}
}