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baseClient.go
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baseClient.go
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package kernel
import (
"bytes"
"context"
"errors"
"fmt"
contract "github.com/ArtisanCloud/PowerLibs/v3/http/contract"
"github.com/ArtisanCloud/PowerLibs/v3/http/helper"
contract2 "github.com/ArtisanCloud/PowerLibs/v3/logger/contract"
"github.com/ArtisanCloud/PowerLibs/v3/object"
"github.com/ArtisanCloud/PowerWeChat/v3/src/kernel/support"
"io/ioutil"
http "net/http"
"os"
"path/filepath"
"strconv"
)
type BaseClient struct {
HttpHelper *helper.RequestHelper
BaseURI string
QueryRaw bool
*support.ResponseCastable
Signer *support.SHA256WithRSASigner
App *ApplicationInterface
Token *AccessToken
GetMiddlewareOfAccessToken contract.RequestMiddleware
GetMiddlewareOfLog func(logger contract2.LoggerInterface) contract.RequestMiddleware
GetMiddlewareOfRefreshAccessToken func(retry int) contract.RequestMiddleware
}
type UploadForm struct {
FileName string
Contents []*UploadContent
}
type UploadContent struct {
Name string
Value interface{}
}
func NewBaseClient(app *ApplicationInterface, token *AccessToken) (*BaseClient, error) {
config := (*app).GetConfig()
baseURI := config.GetString("http.base_uri", "/")
if token == nil {
token = (*app).GetAccessToken()
}
h, err := helper.NewRequestHelper(&helper.Config{
BaseUrl: baseURI,
})
if err != nil {
return nil, err
}
client := &BaseClient{
HttpHelper: h,
App: app,
Token: token,
}
// to be setup middleware here
client.OverrideGetMiddlewares()
client.RegisterHttpMiddlewares()
mchID := config.GetString("mch_id", "")
serialNO := config.GetString("serial_no", "")
keyPath := config.GetString("key_path", "")
if mchID != "" && serialNO != "" && keyPath != "" {
client.Signer = &support.SHA256WithRSASigner{
MchID: mchID,
CertificateSerialNo: serialNO,
PrivateKeyPath: keyPath,
}
}
return client, nil
}
func (client *BaseClient) HttpGet(ctx context.Context, url string, query *object.StringMap, outHeader interface{}, outBody interface{}) (interface{}, error) {
return client.Request(
ctx,
url,
"GET",
&object.HashMap{
"query": query,
},
false,
outHeader,
outBody,
)
}
func (client *BaseClient) HttpPost(ctx context.Context, url string, data interface{}, outHeader interface{}, outBody interface{}) (interface{}, error) {
return client.Request(
ctx,
url,
"POST",
&object.HashMap{
"form_params": data,
},
false,
outHeader,
outBody,
)
}
func (client *BaseClient) HttpPostJson(ctx context.Context, url string, data interface{}, query *object.StringMap, outHeader interface{}, outBody interface{}) (interface{}, error) {
return client.Request(
ctx,
url,
"POST",
&object.HashMap{
"query": query,
"form_params": data,
},
false,
outHeader,
outBody,
)
}
func (client *BaseClient) HttpUpload(ctx context.Context, url string, files *object.HashMap, form *UploadForm, query interface{}, outHeader interface{}, outBody interface{}) (interface{}, error) {
multipart := []*object.HashMap{}
headers := &object.HashMap{}
// 如果设置了filename,则初始化一个header,在每一个multipart里注入
if form != nil {
if form.FileName != "" {
fileName := form.FileName
(*headers)["Content-Disposition"] = fmt.Sprintf("form-data; name=\"media\"; filename=\"%s\"", fileName)
}
}
// 遍历文件目录
if files != nil {
for name, path := range *files {
_, err := os.Open(path.(string))
if err != nil {
return nil, err
}
if (*headers)["filename"] == nil {
(*headers)["filename"] = filepath.Base(path.(string))
}
multipart = append(multipart, &object.HashMap{
"name": name,
"value": path,
"headers": headers,
})
}
}
// 遍历表单的数据
if form != nil {
for _, content := range form.Contents {
part := &object.HashMap{
"name": content.Name,
//"value": object.EncodeToBytes(content.Value),
"value": content.Value,
}
multipart = append(multipart, part)
}
}
return client.Request(ctx, url, "POST", &object.HashMap{
"query": query,
"multipart": multipart,
"connect_timeout": 30,
"timeout": 30,
"read_timeout": 30,
}, false, nil, outBody)
}
func (client *BaseClient) Request(ctx context.Context, url string, method string, options *object.HashMap,
returnRaw bool, outHeader interface{}, outBody interface{},
) (*http.Response, error) {
// http client request
client.QueryRaw = returnRaw
df := client.HttpHelper.Df().WithContext(ctx).Uri(url).Method(method)
// 检查是否需要有请求参数配置
if options != nil {
// set query key values
if (*options)["query"] != nil {
queries := (*options)["query"].(*object.StringMap)
if queries != nil {
for k, v := range *queries {
df.Query(k, v)
}
}
}
config := (*client.App).GetConfig()
// 微信如果需要传debug模式
debug := config.GetBool("debug", false)
if debug {
df.Query("debug", "1")
}
// set body json
if (*options)["form_params"] != nil {
df.Json((*options)["form_params"])
}
}
response, err := df.Request()
if err != nil {
return response, err
}
// decode response body to outBody
if outBody != nil {
err = client.HttpHelper.ParseResponseBodyContent(response, outBody)
if err != nil {
return nil, err
}
}
// decode response header to outHeader
if outHeader != nil {
strHeader, err := object.JsonEncode(response.Header)
if err != nil {
return nil, err
}
err = object.JsonDecode([]byte(strHeader), outHeader)
if err != nil {
return nil, err
}
}
return response, err
//if returnRaw {
// return response, err
//} else {
// // tbf
// returnResponse, err := client.CastResponseToType(response, response2.TYPE_MAP)
// return returnResponse, err
//}
}
func (client *BaseClient) RequestRaw(ctx context.Context, url string, method string, options *object.HashMap, outHeader interface{}, outBody interface{}) (*http.Response, error) {
return client.Request(ctx, url, method, options, true, outHeader, outBody)
}
func (client *BaseClient) RegisterHttpMiddlewares() {
// access token
accessTokenMiddleware := client.GetMiddlewareOfAccessToken
// log
logMiddleware := client.GetMiddlewareOfLog
// check invalid access token
checkAccessTokenMiddleware := client.GetMiddlewareOfRefreshAccessToken
config := (*client.App).GetConfig()
logger := (*client.App).GetComponent("Logger").(contract2.LoggerInterface)
client.HttpHelper.WithMiddleware(
helper.HttpDebugMiddleware(config.GetBool("http_debug", false)),
accessTokenMiddleware,
logMiddleware(logger),
checkAccessTokenMiddleware(3),
)
}
// ----------------------------------------------------------------------
func (client *BaseClient) OverrideGetMiddlewares() {
client.OverrideGetMiddlewareOfLog()
client.OverrideGetMiddlewareOfAccessToken()
client.OverrideGetMiddlewareOfRefreshAccessToken()
}
func (client *BaseClient) OverrideGetMiddlewareOfAccessToken() {
client.GetMiddlewareOfAccessToken = func(handle contract.RequestHandle) contract.RequestHandle {
return func(request *http.Request) (response *http.Response, err error) {
// 前置中间件
//fmt.Println("获取access token, 在请求前执行")
accessToken := (*client.App).GetAccessToken()
if accessToken != nil {
config := (*client.App).GetContainer().Config
_, err = accessToken.ApplyToRequest(request, config)
}
if err != nil {
return nil, err
}
response, err = handle(request)
if err != nil {
return response, err
}
// handle 执行之后就可以操作 response 和 err
// 后置中间件
//fmt.Println("获取access token, 在请求后执行")
return
}
}
}
func (client *BaseClient) OverrideGetMiddlewareOfLog() {
client.GetMiddlewareOfLog = func(logger contract2.LoggerInterface) contract.RequestMiddleware {
return contract.RequestMiddleware(func(handle contract.RequestHandle) contract.RequestHandle {
return func(request *http.Request) (response *http.Response, err error) {
// 前置中间件
//logger.Println("这里是前置中间件log, 在请求前执行")
response, err = handle(request)
if err != nil {
return response, err
}
//// 后置中间件
////logger.Println("这里是后置置中间件log, 在请求后执行")
return
}
})
}
}
func (client *BaseClient) OverrideGetMiddlewareOfRefreshAccessToken() {
client.GetMiddlewareOfRefreshAccessToken = func(retry int) contract.RequestMiddleware {
return contract.RequestMiddleware(func(handle contract.RequestHandle) contract.RequestHandle {
return func(request *http.Request) (response *http.Response, err error) {
// 前置中间件
//fmt.Println("检查微信返回错误,token是否失效,执行前访问")
response, err = handle(request)
// handle 执行之后就可以操作 response 和 err
if err != nil {
return response, err
}
if response.StatusCode != http.StatusOK {
return response, errors.New(fmt.Sprintf("http response code:%d", response.StatusCode))
}
if !client.QueryRaw {
rs, err := client.CheckTokenNeedRefresh(request, response, retry)
if err != nil {
return rs, err
} else if rs != nil {
return rs, nil
}
}
// 后置中间件
//fmt.Println("检查微信返回错误,token是否失效,, 在请求后执行")
return
}
})
}
}
func (client *BaseClient) CheckTokenNeedRefresh(req *http.Request, rs *http.Response, retry int) (*http.Response, error) {
mapResponse := &object.HashMap{}
err := client.HttpHelper.ParseResponseBodyToMap(rs, mapResponse)
if err != nil {
return nil, err
}
errCode := 0
if (*mapResponse)["errcode"] != nil {
switch (*mapResponse)["errcode"].(type) {
case float64:
errCode = int((*mapResponse)["errcode"].(float64))
case int:
errCode = (*mapResponse)["errcode"].(int)
case string:
errCode, err = strconv.Atoi((*mapResponse)["errcode"].(string))
default:
}
conditions := &object.HashMap{
"code": errCode,
}
if retry > 0 && client.RetryDecider(conditions) {
client.Token.Refresh()
// clone 一个request
token, err := client.Token.GetToken(false)
q := req.URL.Query()
q.Set(client.Token.TokenKey, token.AccessToken)
req.URL.RawQuery = q.Encode()
req2 := req.Clone(req.Context())
if req.Body != nil {
// 缓存请求body
reqData, err := ioutil.ReadAll(req.Body)
if err != nil {
return nil, err
}
// 给两个request复制缓存下来的body数据
req.Body = ioutil.NopCloser(bytes.NewBuffer(reqData))
req2.Body = ioutil.NopCloser(bytes.NewReader(reqData))
}
res2, err := client.HttpHelper.GetClient().DoRequest(req2)
if err != nil {
return nil, err
}
return res2, err
//b, err := ioutil.ReadAll(res2.Body)
//rs.Body = ioutil.NopCloser(bytes.NewBuffer(b))
//content := string(b)
//fmt2.Dump(content)
}
}
return rs, nil
}
func (client *BaseClient) RetryDecider(conditions *object.HashMap) bool {
code := (*conditions)["code"].(int)
if code == 40001 || code == 40014 || code == 42001 {
return true
}
return false
}