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http_agent.go
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http_agent.go
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/*
* Copyright 1999-2020 Alibaba Group Holding Ltd.
*
* 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 http_agent
import (
"io/ioutil"
"net/http"
"github.com/wubin1989/nacos-sdk-go/v2/common/constant"
"github.com/wubin1989/nacos-sdk-go/v2/common/tls"
"github.com/pkg/errors"
"github.com/wubin1989/nacos-sdk-go/v2/common/logger"
"github.com/wubin1989/nacos-sdk-go/v2/util"
)
type HttpAgent struct {
TlsConfig constant.TLSConfig
}
func (agent *HttpAgent) Get(path string, header http.Header, timeoutMs uint64,
params map[string]string) (response *http.Response, err error) {
client, err := agent.createClient()
if err != nil {
return nil, err
}
return get(client, path, header, timeoutMs, params)
}
func (agent *HttpAgent) RequestOnlyResult(method string, path string, header http.Header, timeoutMs uint64, params map[string]string) string {
var response *http.Response
var err error
switch method {
case http.MethodGet:
response, err = agent.Get(path, header, timeoutMs, params)
break
case http.MethodPost:
response, err = agent.Post(path, header, timeoutMs, params)
break
case http.MethodPut:
response, err = agent.Put(path, header, timeoutMs, params)
break
case http.MethodDelete:
response, err = agent.Delete(path, header, timeoutMs, params)
break
default:
logger.Errorf("request method[%s], path[%s],header:[%s],params:[%s], not avaliable method ", method, path, util.ToJsonString(header), util.ToJsonString(params))
}
if err != nil {
logger.Errorf("request method[%s],request path[%s],header:[%s],params:[%s],err:%+v", method, path, util.ToJsonString(header), util.ToJsonString(params), err)
return ""
}
if response.StatusCode != constant.RESPONSE_CODE_SUCCESS {
logger.Errorf("request method[%s],request path[%s],header:[%s],params:[%s],status code error:%d", method, path, util.ToJsonString(header), util.ToJsonString(params), response.StatusCode)
return ""
}
bytes, errRead := ioutil.ReadAll(response.Body)
defer response.Body.Close()
if errRead != nil {
logger.Errorf("request method[%s],request path[%s],header:[%s],params:[%s],read error:%+v", method, path, util.ToJsonString(header), util.ToJsonString(params), errRead)
return ""
}
return string(bytes)
}
func (agent *HttpAgent) Request(method string, path string, header http.Header, timeoutMs uint64, params map[string]string) (response *http.Response, err error) {
switch method {
case http.MethodGet:
response, err = agent.Get(path, header, timeoutMs, params)
return
case http.MethodPost:
response, err = agent.Post(path, header, timeoutMs, params)
return
case http.MethodPut:
response, err = agent.Put(path, header, timeoutMs, params)
return
case http.MethodDelete:
response, err = agent.Delete(path, header, timeoutMs, params)
return
default:
err = errors.New("not available method")
logger.Errorf("request method[%s], path[%s],header:[%s],params:[%s], not available method ", method, path, util.ToJsonString(header), util.ToJsonString(params))
}
return
}
func (agent *HttpAgent) Post(path string, header http.Header, timeoutMs uint64,
params map[string]string) (response *http.Response, err error) {
client, err := agent.createClient()
if err != nil {
return nil, err
}
return post(client, path, header, timeoutMs, params)
}
func (agent *HttpAgent) Delete(path string, header http.Header, timeoutMs uint64,
params map[string]string) (response *http.Response, err error) {
client, err := agent.createClient()
if err != nil {
return nil, err
}
return delete(client, path, header, timeoutMs, params)
}
func (agent *HttpAgent) Put(path string, header http.Header, timeoutMs uint64,
params map[string]string) (response *http.Response, err error) {
client, err := agent.createClient()
if err != nil {
return nil, err
}
return put(client, path, header, timeoutMs, params)
}
func (agent *HttpAgent) createClient() (*http.Client, error) {
if !agent.TlsConfig.Enable {
return &http.Client{}, nil
}
cfg, err := tls.NewTLS(agent.TlsConfig)
if err != nil {
return nil, err
}
return &http.Client{Transport: &http.Transport{TLSClientConfig: cfg}}, nil
}